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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /gfx/graphite2
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/graphite2')
-rw-r--r--gfx/graphite2/COPYING26
-rw-r--r--gfx/graphite2/ChangeLog181
-rw-r--r--gfx/graphite2/LICENSE510
-rw-r--r--gfx/graphite2/README.md32
-rw-r--r--gfx/graphite2/README.mozilla3
-rw-r--r--gfx/graphite2/include/graphite2/Font.h388
-rw-r--r--gfx/graphite2/include/graphite2/Log.h85
-rw-r--r--gfx/graphite2/include/graphite2/Segment.h461
-rw-r--r--gfx/graphite2/include/graphite2/Types.h72
-rw-r--r--gfx/graphite2/include/graphite2/XmlLog.h55
-rw-r--r--gfx/graphite2/moz-gr-update.sh54
-rw-r--r--gfx/graphite2/src/Bidi.cpp826
-rw-r--r--gfx/graphite2/src/CMakeLists.txt158
-rw-r--r--gfx/graphite2/src/CachedFace.cpp127
-rw-r--r--gfx/graphite2/src/CmapCache.cpp155
-rw-r--r--gfx/graphite2/src/Code.cpp748
-rw-r--r--gfx/graphite2/src/Collider.cpp1100
-rw-r--r--gfx/graphite2/src/Decompressor.cpp115
-rw-r--r--gfx/graphite2/src/Face.cpp370
-rw-r--r--gfx/graphite2/src/FeatureMap.cpp293
-rw-r--r--gfx/graphite2/src/FileFace.cpp115
-rw-r--r--gfx/graphite2/src/Font.cpp61
-rw-r--r--gfx/graphite2/src/GlyphCache.cpp492
-rw-r--r--gfx/graphite2/src/GlyphFace.cpp48
-rw-r--r--gfx/graphite2/src/GlyphFaceCache.cpp149
-rw-r--r--gfx/graphite2/src/Intervals.cpp299
-rw-r--r--gfx/graphite2/src/Justifier.cpp280
-rw-r--r--gfx/graphite2/src/MozGrMalloc.h19
-rw-r--r--gfx/graphite2/src/NameTable.cpp255
-rw-r--r--gfx/graphite2/src/Pass.cpp1104
-rw-r--r--gfx/graphite2/src/Position.cpp98
-rw-r--r--gfx/graphite2/src/Rule.cpp31
-rw-r--r--gfx/graphite2/src/SegCache.cpp224
-rw-r--r--gfx/graphite2/src/SegCacheEntry.cpp108
-rw-r--r--gfx/graphite2/src/SegCacheStore.cpp47
-rw-r--r--gfx/graphite2/src/Segment.cpp545
-rw-r--r--gfx/graphite2/src/Silf.cpp438
-rw-r--r--gfx/graphite2/src/Slot.cpp535
-rw-r--r--gfx/graphite2/src/Sparse.cpp62
-rw-r--r--gfx/graphite2/src/TtfUtil.cpp2048
-rw-r--r--gfx/graphite2/src/UtfCodec.cpp45
-rw-r--r--gfx/graphite2/src/XmlTraceLog.cpp219
-rw-r--r--gfx/graphite2/src/XmlTraceLogTags.cpp169
-rw-r--r--gfx/graphite2/src/call_machine.cpp140
-rw-r--r--gfx/graphite2/src/direct_machine.cpp121
-rw-r--r--gfx/graphite2/src/files.mk123
-rw-r--r--gfx/graphite2/src/gr_char_info.cpp65
-rw-r--r--gfx/graphite2/src/gr_face.cpp282
-rw-r--r--gfx/graphite2/src/gr_features.cpp138
-rw-r--r--gfx/graphite2/src/gr_font.cpp72
-rw-r--r--gfx/graphite2/src/gr_logging.cpp266
-rw-r--r--gfx/graphite2/src/gr_segment.cpp170
-rw-r--r--gfx/graphite2/src/gr_slot.cpp173
-rw-r--r--gfx/graphite2/src/inc/Bidi.h126
-rw-r--r--gfx/graphite2/src/inc/CachedFace.h56
-rw-r--r--gfx/graphite2/src/inc/CharInfo.h67
-rw-r--r--gfx/graphite2/src/inc/CmapCache.h82
-rw-r--r--gfx/graphite2/src/inc/Code.h171
-rw-r--r--gfx/graphite2/src/inc/Collider.h244
-rw-r--r--gfx/graphite2/src/inc/Compression.h103
-rw-r--r--gfx/graphite2/src/inc/Decompressor.h56
-rw-r--r--gfx/graphite2/src/inc/Endian.h112
-rw-r--r--gfx/graphite2/src/inc/Error.h135
-rw-r--r--gfx/graphite2/src/inc/Face.h225
-rw-r--r--gfx/graphite2/src/inc/FeatureMap.h193
-rw-r--r--gfx/graphite2/src/inc/FeatureVal.h68
-rw-r--r--gfx/graphite2/src/inc/FileFace.h80
-rw-r--r--gfx/graphite2/src/inc/Font.h89
-rw-r--r--gfx/graphite2/src/inc/GlyphCache.h223
-rw-r--r--gfx/graphite2/src/inc/GlyphFace.h83
-rw-r--r--gfx/graphite2/src/inc/GlyphFaceCache.h103
-rw-r--r--gfx/graphite2/src/inc/Intervals.h234
-rw-r--r--gfx/graphite2/src/inc/List.h165
-rw-r--r--gfx/graphite2/src/inc/Machine.h200
-rw-r--r--gfx/graphite2/src/inc/Main.h146
-rw-r--r--gfx/graphite2/src/inc/NameTable.h65
-rw-r--r--gfx/graphite2/src/inc/Pass.h118
-rw-r--r--gfx/graphite2/src/inc/Position.h68
-rw-r--r--gfx/graphite2/src/inc/Rule.h305
-rw-r--r--gfx/graphite2/src/inc/SegCache.h316
-rw-r--r--gfx/graphite2/src/inc/SegCacheEntry.h121
-rw-r--r--gfx/graphite2/src/inc/SegCacheStore.h127
-rw-r--r--gfx/graphite2/src/inc/Segment.h248
-rw-r--r--gfx/graphite2/src/inc/Shrinker.h119
-rw-r--r--gfx/graphite2/src/inc/Silf.h128
-rw-r--r--gfx/graphite2/src/inc/Slot.h172
-rw-r--r--gfx/graphite2/src/inc/Sparse.h171
-rw-r--r--gfx/graphite2/src/inc/TtfTypes.h419
-rw-r--r--gfx/graphite2/src/inc/TtfUtil.h206
-rw-r--r--gfx/graphite2/src/inc/UtfCodec.h249
-rw-r--r--gfx/graphite2/src/inc/bits.h146
-rw-r--r--gfx/graphite2/src/inc/debug.h89
-rw-r--r--gfx/graphite2/src/inc/json.h172
-rw-r--r--gfx/graphite2/src/inc/locale2lcid.h450
-rw-r--r--gfx/graphite2/src/inc/opcode_table.h125
-rw-r--r--gfx/graphite2/src/inc/opcodes.h689
-rw-r--r--gfx/graphite2/src/json.cpp140
-rw-r--r--gfx/graphite2/src/moz.build85
98 files changed, 22389 insertions, 0 deletions
diff --git a/gfx/graphite2/COPYING b/gfx/graphite2/COPYING
new file mode 100644
index 000000000..d40f2d845
--- /dev/null
+++ b/gfx/graphite2/COPYING
@@ -0,0 +1,26 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, you may use this library under the terms of the Mozilla
+ Public License (http://mozilla.org/MPL) or under the GNU General Public
+ License, as published by the Free Sofware Foundation; either version
+ 2 of the license or (at your option) any later version.
+*/
diff --git a/gfx/graphite2/ChangeLog b/gfx/graphite2/ChangeLog
new file mode 100644
index 000000000..2d5a0c113
--- /dev/null
+++ b/gfx/graphite2/ChangeLog
@@ -0,0 +1,181 @@
+1.3.4
+ . Transition from Mercurial to Git
+ . Bug fixes
+ . Fix Collision Kerning ignoring some diacritics
+ . Handle pass bits 16-31 to speed up fonts with > 16 passes
+ . Various minor fuzz bug fixes
+ . Make Coverity happy
+ . Add GR_FALLTHROUGH macro for clang c++11
+
+1.3.3
+ . Slight speed up in Collision Avoidance
+ . Remove dead bidi code
+ . Bug fixes
+ . Between pass bidi reorderings and at the end
+ . Decompressor fuzz bugs
+ . Other fuzz bugs
+
+1.3.2
+ . Remove full bidi. All segments are assumed to be single directioned.
+ . Bug fixes:
+ . Decompressor corner cases
+ . Various fuzz bugs
+
+1.3.1
+ . Deprecation warning: Full bidi support is about to be deprecated. Make contact
+ if this impacts you.
+ . Change compression block format slightly to conform to LZ4
+ . Bug fixes:
+ . Handle mono direction text with diacritics consistently. Fonts
+ now see the direction they expect consistently and bidi now
+ gives expected results.
+ . Fixed lots of fuzz bugs
+ . Coverity cleanups
+ . Build now works for clang and/or asan and/or afl etc.
+
+1.3.0
+ . Add collision avoidance
+ . Shift Collider
+ . Kern Collider
+ . Octabox outlines and subboxes
+ . Add compressed Silf and Glat table support
+ . Bug fixes:
+ . Stop loops forming in the child, sibling tree
+ . Handle bidi mirroring correctly if no bidi occurring
+
+1.2.4
+ . Face failure now has error code reporting via debug logging
+ . can now call gr_start_logging(NULL, fname)
+ . gr2fonttest --alltrace added
+ . Format 14 table support
+ . Not done. To be handled entirely in the compiler
+ . Bidi support for Unicode 6.3 Isolating direction controls
+ . Fonts no longer require a glyf/loca table. In such cases the bounding box is always 0.
+ . Clang ASAN build support added for testing.
+ . Handle out of memory sanely.
+ . Documentation improvements
+ . Bug fixes:
+ . Enforce fonts having to store glyph attributes by monotonically increasing attribute number
+ . zeropadding was not getting called on feature tags
+ . automatic associations for unassociated characters
+ . use direct engine on Mac
+ . various extreme case reading 1 past the end errors fixed
+ . remove tabs from sources so that it becomes readable again
+
+1.2.3
+ . Bug fixes only:
+ . fix byte swapping when testing cmap subtable lengths
+ . work around armel compilation problems with conditional operators
+ . fix pseudoglyph support for advance and bbox
+
+1.2.2
+ . Add support for passKeySlot (makes Charis 2x faster) up to 32 passes
+ . Add telemetry output to json if enabled in build GRAPHITE2_TELEMETRY
+ . Shrink font memory footprint particularly in the fsm
+ . Add -S to comparerenderer
+ . Bug fixes:
+ . Fix shift.x being reversed for rtl text
+ . Fix faulty fallback justification
+ . Fix bad cmap handling
+ . Support compiling on old Solaris where bidi attributes clash with register names
+ . Follow the crowd in using Windows.h
+
+1.2.1
+ . Bug fixes:
+ . Allow glyph reattachment
+ . Allow signed glyph attributes
+ . Various build problems with MacOS, old gcc versions, etc.
+ . Various overrun read errors fixed
+
+1.2.0
+ . API Changes:
+ . Added Windows friendly gr_start_logging and gr_stop_logging, now per face
+ . Added gr_make_face_with_ops, gr_make_face_with_seg_cache_and_ops
+ . Added gr_make_font_with_ops
+ . Added gr_face_is_char_supported
+ . Added gr_face_info to give info to apps about face capabilities
+ . Deprecated gr_make_face, gr_make_face_with_seg_cache, gr_make_font_with_advance_fn
+ . Deprecated graphite_start_logging and graphite_stop_logging
+ . These functions are stubbed now and do nothing, but do compile and link.
+ . Bump API version to 3
+ . Add C# wrapper to contrib
+ . Handle justification information in a font and do something useful with it
+ . Builds clang clean (has done for a while)
+ . Bug fixes
+ . Windows build and bug fixes
+ . Add extra information to json debug output
+ . Added windows build documentation
+ . Added freetype sample code and test
+
+1.1.3
+ . Default build has GRAPHITE2_COMPARE_RENDERER to OFF to reduce dependencies
+ . Builds on Mac with clang
+ . Debug output improvements
+ . Tidy up perl wrappers
+ . Fuzz tester improvements
+ . Various bug fixes for bad font handling
+
+1.1.2
+ . Support feature ids < 4 chars when space padded for inclusion in FF 14.
+ . More fuzztesting and removal of causes of valgrind bad reads and sigabrts
+ . Remove contrib/android into its own repo (http://hg.palaso.org/grandroid)
+ . Update comparerenderer to latest harfbuzzng api
+
+1.1.1
+ . Missing Log.h included
+ . perl wrappers updated
+
+1.1.0
+ . Refactored debug output to use json
+ . Renamed VM_MACHINE_TYPE to GRAPHITE2_VM_TYPE
+ . Renamed DISABLE_SEGCACHE to GRAPHITE2_NSEGCACE
+ . Renamed DISBALE_FILE_FACE to GRAPHITE2_NFILEFACE
+ . Renamed ENABLE_COMPARE_RENDERER to GRAPHTIE2_COMPARE_RENDERER
+ . Renamed DOXYGEN_CONFIG to GRAPHITE2_DOXYGEN_CONFIG
+ . Renamed GR2_CUSTOM_HEADER to GRAPHITE2_CUSTOM_HEADER
+ . Renamed GR2_EXPORTING to GRAPHITE2_EXPORTING
+ . Added GRAPHITE2_STATIC for static only builds
+ . Added GRAPHITE2_NTRACING to compile out tracing code
+ . Documented GRAPHITE2_{EXPORTING,STATIC,NTRACING} in hacking.txt
+ . Bump libtool version to 2.1.0
+ . dumb font rendering works
+ . slot user attributes are now signed rather than unsigned
+ . add support for long class maps
+ . Rename perl library to avoid nameclash on Windows
+ . Various robustness fixes
+ . Moved internal .h files into src/inc
+ . Parallelise fuzztest
+ . General build improvements, particularly on Windows
+
+1.0.3
+ . Fix UTF16 surrogate support
+ . script and lang tags may be space padded or null padded
+ . Remove need for WORDS_BIGENDIAN, do it all automatically
+ . Remove all #include <new>. Use CLASS_NEW_DELETE instead.
+ . Fix comparerenderer to work with current hbng
+ . Add valgrind to fuzztest to ensure good memory use at all times
+ . Fix new fuzztest exposed bugs.
+ . Fix bugs exposed by Mozilla security review
+ . Add continuous integration build on Windows support
+
+1.0.2
+ . Fix Windows build
+ . Comparerenderer uses hbng enforcing ot rendering
+ . Add Bidi .hasChar support and refactor mirroring code
+ . Make cmake default Release rather than debug
+ . Don't compile in a boat load of TtfUtil that isn't used, saving 15% of binary
+ . Chase the FSF around its latest office moves
+ . WORDS_BIGENDIAN is set at the top so tests now pass on ppc, etc.
+ . More words in the manual
+
+1.0.1
+ . Release is the default build in cmake now.
+ . Refactor cmake build to not rebuild things so much.
+ . Include a missing file
+ . Remove -nostdlibs, making gcc happy everywhere
+ . Update comparerenderer to latest hbng interface
+ . Add changelog
+
+1.0.0
+ . First major release of perfect code!
+
diff --git a/gfx/graphite2/LICENSE b/gfx/graphite2/LICENSE
new file mode 100644
index 000000000..2d2d780e6
--- /dev/null
+++ b/gfx/graphite2/LICENSE
@@ -0,0 +1,510 @@
+
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
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+[This is the first released version of the Lesser GPL. It also counts
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diff --git a/gfx/graphite2/README.md b/gfx/graphite2/README.md
new file mode 100644
index 000000000..2c4ecf58d
--- /dev/null
+++ b/gfx/graphite2/README.md
@@ -0,0 +1,32 @@
+# Graphite engine
+
+## What is Graphite?
+
+Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways.
+
+Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script.
+
+Examples of complex script behaviors Graphite can handle include:
+
+* contextual shaping
+* ligatures
+* reordering
+* split glyphs
+* bidirectionality
+* stacking diacritics
+* complex positioning
+* shape aware kerning
+* automatic diacritic collision avoidance
+
+See [examples of scripts with complex rendering](http://scripts.sil.org/CmplxRndExamples).
+
+## Graphite system overview
+The Graphite system consists of:
+
+* A rule-based programming language [Graphite Description Language](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_devFont#gdl) (GDL) that can be used to describe the behavior of a writing system
+* A compiler for that language
+* A rendering engine that can serve as the layout component of a text-processing application
+
+Graphite renders TrueType fonts that have been extended by means of compiling a GDL program.
+
+Further technical information is available on the [Graphite technical overview](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout) page.
diff --git a/gfx/graphite2/README.mozilla b/gfx/graphite2/README.mozilla
new file mode 100644
index 000000000..05d7a676a
--- /dev/null
+++ b/gfx/graphite2/README.mozilla
@@ -0,0 +1,3 @@
+This directory contains the Graphite2 library release 1.3.10 from
+https://github.com/silnrsi/graphite/releases/download/1.3.10/graphite2-minimal-1.3.10.tgz
+See gfx/graphite2/moz-gr-update.sh for update procedure.
diff --git a/gfx/graphite2/include/graphite2/Font.h b/gfx/graphite2/include/graphite2/Font.h
new file mode 100644
index 000000000..729ebff88
--- /dev/null
+++ b/gfx/graphite2/include/graphite2/Font.h
@@ -0,0 +1,388 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, the contents of this file may be used under the terms
+ of the Mozilla Public License (http://mozilla.org/MPL) or the GNU
+ General Public License, as published by the Free Software Foundation,
+ either version 2 of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "graphite2/Types.h"
+
+#define GR2_VERSION_MAJOR 1
+#define GR2_VERSION_MINOR 3
+#define GR2_VERSION_BUGFIX 10
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef struct gr_face gr_face;
+typedef struct gr_font gr_font;
+typedef struct gr_feature_ref gr_feature_ref;
+typedef struct gr_feature_val gr_feature_val;
+
+/**
+* Returns version information on this engine
+*/
+GR2_API void gr_engine_version(int *nMajor, int *nMinor, int *nBugFix);
+
+/**
+* The Face Options allow the application to require that certain tables are
+* read during face construction. This may be of concern if the appFaceHandle
+* used in the gr_get_table_fn may change.
+* The values can be combined
+*/
+enum gr_face_options {
+ /** No preload, no cmap caching, fail if the graphite tables are invalid */
+ gr_face_default = 0,
+ /** Dumb rendering will be enabled if the graphite tables are invalid */
+ gr_face_dumbRendering = 1,
+ /** preload glyphs at construction time */
+ gr_face_preloadGlyphs = 2,
+ /** Cache the lookup from code point to glyph ID at construction time */
+ gr_face_cacheCmap = 4,
+ /** Preload everything */
+ gr_face_preloadAll = gr_face_preloadGlyphs | gr_face_cacheCmap
+};
+
+/** Holds information about a particular Graphite silf table that has been loaded */
+struct gr_faceinfo {
+ gr_uint16 extra_ascent; /**< The extra_ascent in the GDL, in design units */
+ gr_uint16 extra_descent; /**< The extra_descent in the GDL, in design units */
+ gr_uint16 upem; /**< The design units for the font */
+ enum gr_space_contextuals {
+ gr_space_unknown = 0, /**< no information is known. */
+ gr_space_none = 1, /**< the space character never occurs in any rules. */
+ gr_space_left_only = 2, /**< the space character only occurs as the first element in a rule. */
+ gr_space_right_only = 3, /**< the space character only occurs as the last element in a rule. */
+ gr_space_either_only = 4, /**< the space character only occurs as the only element in a rule. */
+ gr_space_both = 5, /**< the space character may occur as the first or last element of a rule. */
+ gr_space_cross = 6 /**< the space character occurs in a rule not as a first or last element. */
+ } space_contextuals;
+ unsigned int has_bidi_pass : 1; /**< the table specifies that a bidirectional pass should run */
+ unsigned int line_ends : 1; /**< there are line end contextuals somewhere */
+ unsigned int justifies : 1; /**< there are .justify properties set somewhere on some glyphs */
+};
+
+typedef struct gr_faceinfo gr_faceinfo;
+
+/** type describing function to retrieve font table information
+ *
+ * @return a pointer to the table in memory. The pointed to memory must exist as
+ * long as the gr_face which makes the call.
+ * @param appFaceHandle is the unique information passed to gr_make_face()
+ * @param name is a 32bit tag to the table name.
+ * @param len returned by this function to say how long the table is in memory.
+ */
+typedef const void *(*gr_get_table_fn)(const void* appFaceHandle, unsigned int name, size_t *len);
+
+/** type describing function to release any resources allocated by the above get_table table function
+ *
+ * @param appFaceHandle is the unique information passed to gr_make_face()
+ * @param pointer to table memory returned by get_table.
+ */
+typedef void (*gr_release_table_fn)(const void* appFaceHandle, const void *table_buffer);
+
+/** struct housing function pointers to manage font table buffers for the graphite engine. */
+struct gr_face_ops
+{
+ /** size in bytes of this structure */
+ size_t size;
+ /** a pointer to a function to request a table from the client. */
+ gr_get_table_fn get_table;
+ /** is a pointer to a function to notify the client the a table can be released.
+ * This can be NULL to signify that the client does not wish to do any release handling. */
+ gr_release_table_fn release_table;
+};
+typedef struct gr_face_ops gr_face_ops;
+
+/** Create a gr_face object given application information and a table functions.
+ *
+ * @return gr_face or NULL if the font fails to load for some reason.
+ * @param appFaceHandle This is application specific information that is passed
+ * to the getTable function. The appFaceHandle must stay
+ * alive as long as the gr_face is alive.
+ * @param face_ops Pointer to face specific callback structure for table
+ * management. Must stay alive for the duration of the
+ * call only.
+ * @param faceOptions Bitfield describing various options. See enum gr_face_options for details.
+ */
+GR2_API gr_face* gr_make_face_with_ops(const void* appFaceHandle/*non-NULL*/, const gr_face_ops *face_ops, unsigned int faceOptions);
+
+/** Create a gr_face object given application information and a getTable function. This function is deprecated as of v1.2.0 in
+ * favour of gr_make_face_with_ops.
+ *
+ * @return gr_face or NULL if the font fails to load for some reason.
+ * @param appFaceHandle This is application specific information that is passed
+ * to the getTable function. The appFaceHandle must stay
+ * alive as long as the gr_face is alive.
+ * @param getTable Callback function to get table data.
+ * @param faceOptions Bitfield describing various options. See enum gr_face_options for details.
+ */
+GR2_API gr_face* gr_make_face(const void* appFaceHandle/*non-NULL*/, gr_get_table_fn getTable, unsigned int faceOptions);
+
+//#ifndef GRAPHITE2_NSEGCACHE
+/** Create a gr_face object given application information, with subsegmental caching support
+ *
+ * @return gr_face or NULL if the font fails to load.
+ * @param appFaceHandle is a pointer to application specific information that is passed to getTable.
+ * This may not be NULL and must stay alive as long as the gr_face is alive.
+ * @param face_ops Pointer to face specific callback structure for table management. Must stay
+ * alive for the duration of the call only.
+ * @param segCacheMaxSize How large the segment cache is.
+ * @param faceOptions Bitfield of values from enum gr_face_options
+ */
+GR2_API gr_face* gr_make_face_with_seg_cache_and_ops(const void* appFaceHandle, const gr_face_ops *face_ops, unsigned int segCacheMaxSize, unsigned int faceOptions);
+
+/** Create a gr_face object given application information, with subsegmental caching support.
+ * This function is deprecated as of v1.2.0 in favour of gr_make_face_with_seg_cache_and_ops.
+ *
+ * @return gr_face or NULL if the font fails to load.
+ * @param appFaceHandle is a pointer to application specific information that is passed to getTable.
+ * This may not be NULL and must stay alive as long as the gr_face is alive.
+ * @param getTable The function graphite calls to access font table data
+ * @param segCacheMaxSize How large the segment cache is.
+ * @param faceOptions Bitfield of values from enum gr_face_options
+ */
+GR2_API gr_face* gr_make_face_with_seg_cache(const void* appFaceHandle, gr_get_table_fn getTable, unsigned int segCacheMaxSize, unsigned int faceOptions);
+//#endif
+
+/** Convert a tag in a string into a gr_uint32
+ *
+ * @return gr_uint32 tag, zero padded
+ * @param str a nul terminated string of which at most the first 4 characters are read
+ */
+GR2_API gr_uint32 gr_str_to_tag(const char *str);
+
+/** Convert a gr_uint32 tag into a string
+ *
+ * @param tag contains the tag to convert
+ * @param str is a pointer to a char array of at least size 4 bytes. The first 4 bytes of this array
+ * will be overwritten by this function. No nul is appended.
+ */
+GR2_API void gr_tag_to_str(gr_uint32 tag, char *str);
+
+/** Get feature values for a given language or default
+ *
+ * @return a copy of the default feature values for a given language. The application must call
+ * gr_featureval_destroy() to free this object when done.
+ * @param pFace The font face to get feature values from
+ * @param langname The language tag to get feature values for. If there is no such language or
+ * langname is 0, the default feature values for the font are returned.
+ * langname is right 0 padded and assumes lowercase. Thus the en langauge
+ * would be 0x656E0000. Langname may also be space padded, thus 0x656E2020.
+ */
+GR2_API gr_feature_val* gr_face_featureval_for_lang(const gr_face* pFace, gr_uint32 langname);
+
+/** Get feature reference for a given feature id from a face
+ *
+ * @return a feature reference corresponding to the given id. This data is part of the gr_face and
+ * will be freed when the face is destroyed.
+ * @param pFace Font face to get information on.
+ * @param featId Feature id tag to get reference to.
+ */
+GR2_API const gr_feature_ref* gr_face_find_fref(const gr_face* pFace, gr_uint32 featId);
+
+/** Returns number of feature references in a face **/
+GR2_API gr_uint16 gr_face_n_fref(const gr_face* pFace);
+
+/** Returns feature reference at given index in face **/
+GR2_API const gr_feature_ref* gr_face_fref(const gr_face* pFace, gr_uint16 i);
+
+/** Return number of languages the face knows about **/
+GR2_API unsigned short gr_face_n_languages(const gr_face* pFace);
+
+/** Returns a language id corresponding to a language of given index in the face **/
+GR2_API gr_uint32 gr_face_lang_by_index(const gr_face* pFace, gr_uint16 i);
+
+/** Destroy the given face and free its memory **/
+GR2_API void gr_face_destroy(gr_face *face);
+
+/** Returns the number of glyphs in the face **/
+GR2_API unsigned short gr_face_n_glyphs(const gr_face* pFace);
+
+/** Returns a faceinfo for the face and script **/
+GR2_API const gr_faceinfo *gr_face_info(const gr_face *pFace, gr_uint32 script);
+
+/** Returns whether the font supports a given Unicode character
+ *
+ * @return true if the character is supported.
+ * @param pFace face to test within
+ * @param usv Unicode Scalar Value of character to test
+ * @param script Tag of script for selecting which set of pseudo glyphs to test. May be NULL.
+ */
+GR2_API int gr_face_is_char_supported(const gr_face *pFace, gr_uint32 usv, gr_uint32 script);
+
+#ifndef GRAPHITE2_NFILEFACE
+/** Create gr_face from a font file
+ *
+ * @return gr_face that accesses a font file directly. Returns NULL on failure.
+ * @param filename Full path and filename to font file
+ * @param faceOptions Bitfile from enum gr_face_options to control face options.
+ */
+GR2_API gr_face* gr_make_file_face(const char *filename, unsigned int faceOptions);
+
+//#ifndef GRAPHITE2_NSEGCACHE
+/** Create gr_face from a font file, with subsegment caching support.
+ *
+ * @return gr_face that accesses a font file directly. Returns NULL on failure.
+ * @param filename Full path and filename to font file
+ * @param segCacheMaxSize Specifies how big to make the cache in segments.
+ * @param faceOptions Bitfield from enum gr_face_options to control face options.
+ */
+GR2_API gr_face* gr_make_file_face_with_seg_cache(const char *filename, unsigned int segCacheMaxSize, unsigned int faceOptions);
+//#endif
+#endif // !GRAPHITE2_NFILEFACE
+
+/** Create a font from a face
+ *
+ * @return gr_font Call font_destroy to free this font
+ * @param ppm Resolution of the font in pixels per em
+ * @param face Face this font corresponds to. This must stay alive as long as the font is alive.
+ */
+GR2_API gr_font* gr_make_font(float ppm, const gr_face *face);
+
+/** query function to find the hinted advance of a glyph
+ *
+ * @param appFontHandle is the unique information passed to gr_make_font_with_advance()
+ * @param glyphid is the glyph to retireve the hinted advance for.
+ */
+typedef float (*gr_advance_fn)(const void* appFontHandle, gr_uint16 glyphid);
+
+/** struct housing function pointers to manage font hinted metrics for the
+ * graphite engine. */
+struct gr_font_ops
+{
+ /** size of the structure in bytes to allow for future extensibility */
+ size_t size;
+ /** a pointer to a function to retrieve the hinted
+ * advance width of a glyph which the font cannot
+ * provide without client assistance. This can be
+ * NULL to signify no horizontal hinted metrics are necessary. */
+ gr_advance_fn glyph_advance_x;
+ /** a pointer to a function to retrieve the hinted
+ * advance height of a glyph which the font cannot
+ * provide without client assistance. This can be
+ * NULL to signify no horizontal hinted metrics are necessary. */
+ gr_advance_fn glyph_advance_y;
+};
+typedef struct gr_font_ops gr_font_ops;
+
+/** Creates a font with hinted advance width query functions
+ *
+ * @return gr_font to be destroyed via font_destroy
+ * @param ppm size of font in pixels per em
+ * @param appFontHandle font specific information that must stay alive as long
+ * as the font does
+ * @param font_ops pointer font specific callback structure for hinted metrics.
+ * Need only stay alive for the duration of the call.
+ * @param face the face this font corresponds to. Must stay alive as long as
+ * the font does.
+ */
+GR2_API gr_font* gr_make_font_with_ops(float ppm, const void* appFontHandle, const gr_font_ops * font_ops, const gr_face *face);
+
+/** Creates a font with hinted advance width query function.
+ * This function is deprecated. Use gr_make_font_with_ops instead.
+ *
+ * @return gr_font to be destroyed via font_destroy
+ * @param ppm size of font in pixels per em
+ * @param appFontHandle font specific information that must stay alive as long
+ * as the font does
+ * @param getAdvance callback function reference that returns horizontal advance in pixels for a glyph.
+ * @param face the face this font corresponds to. Must stay alive as long as
+ * the font does.
+ */
+GR2_API gr_font* gr_make_font_with_advance_fn(float ppm, const void* appFontHandle, gr_advance_fn getAdvance, const gr_face *face);
+
+/** Free a font **/
+GR2_API void gr_font_destroy(gr_font *font);
+
+/** get a feature value
+ *
+ * @return value of specific feature or 0 if any problems.
+ * @param pfeatureref gr_feature_ref to the feature
+ * @param feats gr_feature_val containing all the values
+ */
+GR2_API gr_uint16 gr_fref_feature_value(const gr_feature_ref* pfeatureref, const gr_feature_val* feats);
+
+/** set a feature value
+ *
+ * @return false if there were any problems (value out of range, etc.)
+ * @param pfeatureref gr_feature_ref to the feature
+ * @param val value to set the feature to
+ * @param pDest the gr_feature_val containing all the values for all the features
+ */
+GR2_API int gr_fref_set_feature_value(const gr_feature_ref* pfeatureref, gr_uint16 val, gr_feature_val* pDest);
+
+/** Returns the id tag for a gr_feature_ref **/
+GR2_API gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref);
+
+/** Returns number of values a feature may take, given a gr_feature_ref **/
+GR2_API gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref);
+
+/** Returns the value associated with a particular value in a feature
+ *
+ * @return value
+ * @param pfeatureref gr_feature_ref of the feature of interest
+ * @param settingno Index up to the return value of gr_fref_n_values() of the value
+ */
+GR2_API gr_int16 gr_fref_value(const gr_feature_ref* pfeatureref, gr_uint16 settingno);
+
+/** Returns a string of the UI name of a feature
+ *
+ * @return string of the UI name, in the encoding form requested. Call gr_label_destroy() after use.
+ * @param pfeatureref gr_feature_ref of the feature
+ * @param langId This is a pointer since the face may not support a string in the requested
+ * language. The actual language of the string is returned in langId
+ * @param utf Encoding form for the string
+ * @param length Used to return the length of the string returned in bytes.
+ */
+GR2_API void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, enum gr_encform utf, gr_uint32 *length);
+
+/** Return a UI string for a possible value of a feature
+ *
+ * @return string of the UI name, in the encoding form requested. nul terminated. Call gr_label_destroy()
+ * after use.
+ * @param pfeatureref gr_feature_ref of the feature
+ * @param settingno Value setting index
+ * @param langId This is a pointer to the requested language. The requested language id is
+ * replaced by the actual language id of the string returned.
+ * @param utf Encoding form for the string
+ * @param length Returns the length of the string returned in bytes.
+ */
+GR2_API void* gr_fref_value_label(const gr_feature_ref* pfeatureref, gr_uint16 settingno/*rather than a value*/, gr_uint16 *langId, enum gr_encform utf, gr_uint32 *length);
+
+/** Destroy a previously returned label string **/
+GR2_API void gr_label_destroy(void * label);
+
+/** Copies a gr_feature_val **/
+GR2_API gr_feature_val* gr_featureval_clone(const gr_feature_val* pfeatures);
+
+/** Destroys a gr_feature_val **/
+GR2_API void gr_featureval_destroy(gr_feature_val *pfeatures);
+
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/gfx/graphite2/include/graphite2/Log.h b/gfx/graphite2/include/graphite2/Log.h
new file mode 100644
index 000000000..d1c6f0fe3
--- /dev/null
+++ b/gfx/graphite2/include/graphite2/Log.h
@@ -0,0 +1,85 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, the contents of this file may be used under the terms
+ of the Mozilla Public License (http://mozilla.org/MPL) or the GNU
+ General Public License, as published by the Free Software Foundation,
+ either version 2 of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <graphite2/Types.h>
+#include <graphite2/Font.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/** deprecated mechanism that doesn't do anything now. */
+typedef enum {
+ GRLOG_NONE = 0x0,
+ GRLOG_FACE = 0x01,
+ GRLOG_SEGMENT = 0x02,
+ GRLOG_PASS = 0x04,
+ GRLOG_CACHE = 0x08,
+
+ GRLOG_OPCODE = 0x80,
+ GRLOG_ALL = 0xFF
+} GrLogMask;
+
+/** Start logging all segment creation and updates on the provided face. This
+ * is logged to a JSON file, see "Segment JSON Schema.txt" for a precise
+ * definition of the file
+ *
+ * @return true if the file was successfully created and logging is correctly
+ * initialised.
+ * @param face the gr_face whose segments you want to log to the given file
+ * @param log_path a utf8 encoded file name and path to log to.
+ */
+GR2_API bool gr_start_logging(gr_face * face, const char *log_path);
+
+
+/** Stop logging on the given face. This will close the log file created by
+ * gr_start_logging.
+ *
+ * @param face the gr_face whose segments you want to stop logging
+ */
+GR2_API void gr_stop_logging(gr_face * face);
+
+/** Start logging to a FILE object.
+ * This function is deprecated as of 1.2.0, use the _face versions instead.
+ *
+ * @return True on success
+ * @param logfile FILE reference to output logging to
+ * @param mask What aspects of logging to report (ignored)
+ */
+GR2_API bool graphite_start_logging(FILE * logFile, GrLogMask mask); //may not do anthing if disabled in the implementation of the engine.
+
+/** Stop logging to a FILE object.
+ * This function is deprecated as of 1.2.0, use the _face versions instead.
+ */
+GR2_API void graphite_stop_logging();
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/gfx/graphite2/include/graphite2/Segment.h b/gfx/graphite2/include/graphite2/Segment.h
new file mode 100644
index 000000000..0c3c49a3a
--- /dev/null
+++ b/gfx/graphite2/include/graphite2/Segment.h
@@ -0,0 +1,461 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, the contents of this file may be used under the terms
+ of the Mozilla Public License (http://mozilla.org/MPL) or the GNU
+ General Public License, as published by the Free Software Foundation,
+ either version 2 of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "graphite2/Types.h"
+#include "graphite2/Font.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+enum gr_break_weight {
+ gr_breakNone = 0,
+ /* after break weights */
+ gr_breakWhitespace = 10,
+ gr_breakWord = 15,
+ gr_breakIntra = 20,
+ gr_breakLetter = 30,
+ gr_breakClip = 40,
+ /* before break weights */
+ gr_breakBeforeWhitespace = -10,
+ gr_breakBeforeWord = -15,
+ gr_breakBeforeIntra = -20,
+ gr_breakBeforeLetter = -30,
+ gr_breakBeforeClip = -40
+};
+
+enum gr_justFlags {
+ /// Indicates that this segment is a complete line
+ gr_justCompleteLine = 0,
+ /// Indicates that the start of the slot list is not at the start of a line
+ gr_justStartInline = 1,
+ /// Indicates that the end of the slot list is not at the end of a line
+ gr_justEndInline = 2
+};
+
+/** Used for looking up slot attributes. Most are already available in other functions **/
+enum gr_attrCode {
+ /// adjusted glyph advance in x direction in design units
+ gr_slatAdvX = 0,
+ /// adjusted glyph advance in y direction (usually 0) in design units
+ gr_slatAdvY,
+ /// returns 0. Deprecated.
+ gr_slatAttTo,
+ /// This slot attaches to its parent at the given design units in the x direction
+ gr_slatAttX,
+ /// This slot attaches to its parent at the given design units in the y direction
+ gr_slatAttY,
+ /// This slot attaches to its parent at the given glyph point (not implemented)
+ gr_slatAttGpt,
+ /// x-direction adjustment from the given glyph point (not implemented)
+ gr_slatAttXOff,
+ /// y-direction adjustment from the given glyph point (not implemented)
+ gr_slatAttYOff,
+ /// Where on this glyph should align with the attachment point on the parent glyph in the x-direction.
+ gr_slatAttWithX,
+ /// Where on this glyph should align with the attachment point on the parent glyph in the y-direction
+ gr_slatAttWithY,
+ /// Which glyph point on this glyph should align with the attachment point on the parent glyph (not implemented).
+ gr_slatWithGpt,
+ /// Adjustment to gr_slatWithGpt in x-direction (not implemented)
+ gr_slatAttWithXOff,
+ /// Adjustment to gr_slatWithGpt in y-direction (not implemented)
+ gr_slatAttWithYOff,
+ /// Attach at given nesting level (not implemented)
+ gr_slatAttLevel,
+ /// Line break breakweight for this glyph
+ gr_slatBreak,
+ /// Ligature component reference (not implemented)
+ gr_slatCompRef,
+ /// bidi directionality of this glyph (not implemented)
+ gr_slatDir,
+ /// Whether insertion is allowed before this glyph
+ gr_slatInsert,
+ /// Final positioned position of this glyph relative to its parent in x-direction in pixels
+ gr_slatPosX,
+ /// Final positioned position of this glyph relative to its parent in y-direction in pixels
+ gr_slatPosY,
+ /// Amount to shift glyph by in x-direction design units
+ gr_slatShiftX,
+ /// Amount to shift glyph by in y-direction design units
+ gr_slatShiftY,
+ /// attribute user1
+ gr_slatUserDefnV1,
+ /// not implemented
+ gr_slatMeasureSol,
+ /// not implemented
+ gr_slatMeasureEol,
+ /// Amount this slot can stretch (not implemented)
+ gr_slatJStretch,
+ /// Amount this slot can shrink (not implemented)
+ gr_slatJShrink,
+ /// Granularity by which this slot can stretch or shrink (not implemented)
+ gr_slatJStep,
+ /// Justification weight for this glyph (not implemented)
+ gr_slatJWeight,
+ /// Amount this slot mush shrink or stretch in design units
+ gr_slatJWidth = 29,
+ /// SubSegment split point
+ gr_slatSegSplit = gr_slatJStretch + 29,
+ /// User defined attribute, see subattr for user attr number
+ gr_slatUserDefn,
+ /// Bidi level
+ gr_slatBidiLevel = 56,
+ /// Collision flags
+ gr_slatColFlags,
+ /// Collision constraint rectangle left (bl.x)
+ gr_slatColLimitblx,
+ /// Collision constraint rectangle lower (bl.y)
+ gr_slatColLimitbly,
+ /// Collision constraint rectangle right (tr.x)
+ gr_slatColLimittrx,
+ /// Collision constraint rectangle upper (tr.y)
+ gr_slatColLimittry,
+ /// Collision shift x
+ gr_slatColShiftx,
+ /// Collision shift y
+ gr_slatColShifty,
+ /// Collision margin
+ gr_slatColMargin,
+ /// Margin cost weight
+ gr_slatColMarginWt,
+ // Additional glyph that excludes movement near this one:
+ gr_slatColExclGlyph,
+ gr_slatColExclOffx,
+ gr_slatColExclOffy,
+ // Collision sequence enforcing attributes:
+ gr_slatSeqClass,
+ gr_slatSeqProxClass,
+ gr_slatSeqOrder,
+ gr_slatSeqAboveXoff,
+ gr_slatSeqAboveWt,
+ gr_slatSeqBelowXlim,
+ gr_slatSeqBelowWt,
+ gr_slatSeqValignHt,
+ gr_slatSeqValignWt,
+
+ /// not implemented
+ gr_slatMax,
+ /// not implemented
+ gr_slatNoEffect = gr_slatMax + 1
+};
+
+enum gr_bidirtl {
+ /// Underlying paragraph direction is RTL
+ gr_rtl = 1,
+ /// Set this to not run the bidi pass internally, even if the font asks for it.
+ /// This presumes that the segment is in a single direction. Most of the time
+ /// this bit should be set unless you know you are passing full paragraphs of text.
+ gr_nobidi = 2,
+ /// Disable auto mirroring for rtl text
+ gr_nomirror = 4
+};
+
+typedef struct gr_char_info gr_char_info;
+typedef struct gr_segment gr_segment;
+typedef struct gr_slot gr_slot;
+
+/** Returns Unicode character for a charinfo.
+ *
+ * @param p Pointer to charinfo to return information on.
+ */
+GR2_API unsigned int gr_cinfo_unicode_char(const gr_char_info* p/*not NULL*/);
+
+/** Returns breakweight for a charinfo.
+ *
+ * @return Breakweight is a number between -50 and 50 indicating the cost of a
+ * break before or after this character. If the value < 0, the absolute value
+ * is this character's contribution to the overall breakweight before it. If the value
+ * > 0, then the value is this character's contribution to the overall breakweight after it.
+ * The overall breakweight between two characters is the maximum of the breakweight
+ * contributions from the characters either side of it. If a character makes no
+ * contribution to the breakweight on one side of it, the contribution is considered
+ * to be 0.
+ * @param p Pointer to charinfo to return information on.
+ */
+GR2_API int gr_cinfo_break_weight(const gr_char_info* p/*not NULL*/);
+
+/** Returns the slot index that after this character is after in the slot stream
+ *
+ * In effect each character is associated with a set of slots and this returns
+ * the index of the last slot in the segment this character is associated with.
+ *
+ * @return after slot index between 0 and gr_seg_n_slots()
+ * @param p Pointer to charinfo to return information on.
+ */
+GR2_API int gr_cinfo_after(const gr_char_info* p/*not NULL*/);
+
+/** Returns the slot index that before this character is before in the slot stream
+ *
+ * In effect each character is associated with a set of slots and this returns
+ * the index of the first slot in the segment this character is associated with.
+ *
+ * @return before slot index between 0 and gr_seg_n_slots()
+ * @param p Pointer to charinfo to return information on.
+ */
+GR2_API int gr_cinfo_before(const gr_char_info* p/*not NULL*/);
+
+/** Returns the code unit index of this character in the input string
+ *
+ * @return code unit index between 0 and the end of the string
+ * @param p Pointer to charinfo to return information on.
+ */
+GR2_API size_t gr_cinfo_base(const gr_char_info* p/*not NULL*/);
+
+/** Returns the number of unicode characters in a string.
+ *
+ * @return number of characters in the string
+ * @param enc Specifies the type of data in the string: utf8, utf16, utf32
+ * @param buffer_begin The start of the string
+ * @param buffer_end Measure up to the first nul or when end is reached, whichever is earliest.
+ * This parameter may be NULL.
+ * @param pError If there is a structural fault in the string, the location is returned
+ * in this variable. If no error occurs, pError will contain NULL. NULL
+ * may be passed for pError if no such information is required.
+ */
+GR2_API size_t gr_count_unicode_characters(enum gr_encform enc, const void* buffer_begin, const void* buffer_end, const void** pError);
+
+/** Creates and returns a segment.
+ *
+ * @return a segment that needs seg_destroy called on it. May return NULL if bad problems
+ * in segment processing.
+ * @param font Gives the size of the font in pixels per em for final positioning. If
+ * NULL, positions are returned in design units, i.e. at a ppm of the upem
+ * of the face.
+ * @param face The face containing all the non-size dependent information.
+ * @param script This is a tag containing a script identifier that is used to choose
+ * which graphite table within the font to use. Maybe 0. Tag may be 4 chars
+ * NULL padded in LSBs or space padded in LSBs.
+ * @param pFeats Pointer to a feature values to be used for the segment. Only one
+ * feature values may be used for a segment. If NULL the default features
+ * for the font will be used.
+ * @param enc Specifies what encoding form the string is in (utf8, utf16, utf32)
+ * @param pStart Start of the string
+ * @param nChars Number of unicode characters to process in the string. The string will
+ * be processed either up to the first NULL or until nChars have been
+ * processed. nChars is also used to initialise the internal memory
+ * allocations of the segment. So it is wise not to make nChars too much
+ * greater than the actual number of characters being processed.
+ * @param dir Specifies whether the segment is processed right to left (1) or left to
+ * right (0) and whether to run the internal bidi pass, if a font requests it.
+ * See enum gr_bidirtl for details.
+ */
+GR2_API gr_segment* gr_make_seg(const gr_font* font, const gr_face* face, gr_uint32 script, const gr_feature_val* pFeats, enum gr_encform enc, const void* pStart, size_t nChars, int dir);
+
+/** Destroys a segment, freeing the memory.
+ *
+ * @param p The segment to destroy
+ */
+GR2_API void gr_seg_destroy(gr_segment* p);
+
+/** Returns the advance for the whole segment.
+ *
+ * Returns the width of the segment up to the next glyph origin after the segment
+ */
+GR2_API float gr_seg_advance_X(const gr_segment* pSeg/*not NULL*/);
+
+/** Returns the height advance for the segment. **/
+GR2_API float gr_seg_advance_Y(const gr_segment* pSeg/*not NULL*/);
+
+/** Returns the number of gr_char_infos in the segment. **/
+GR2_API unsigned int gr_seg_n_cinfo(const gr_segment* pSeg/*not NULL*/);
+
+/** Returns a gr_char_info at a given index in the segment. **/
+GR2_API const gr_char_info* gr_seg_cinfo(const gr_segment* pSeg/*not NULL*/, unsigned int index/*must be <number_of_CharInfo*/);
+
+/** Returns the number of glyph gr_slots in the segment. **/
+GR2_API unsigned int gr_seg_n_slots(const gr_segment* pSeg/*not NULL*/); //one slot per glyph
+
+/** Returns the first gr_slot in the segment.
+ *
+ * The first slot in a segment has a gr_slot_prev_in_segment() of NULL. Slots are owned
+ * by their segment and are destroyed along with the segment.
+ */
+GR2_API const gr_slot* gr_seg_first_slot(gr_segment* pSeg/*not NULL*/); //may give a base slot or a slot which is attached to another
+
+/** Returns the last gr_slot in the segment.
+ *
+ * The last slot in a segment has a gr_slot_next_in_segment() of NULL
+ */
+GR2_API const gr_slot* gr_seg_last_slot(gr_segment* pSeg/*not NULL*/); //may give a base slot or a slot which is attached to another
+
+/** Justifies a linked list of slots for a line to a given width
+ *
+ * Passed a pointer to the start of a linked list of slots corresponding to a line, as
+ * set up by gr_slot_linebreak_before, this function will position the glyphs in the line
+ * to take up the given width. It is possible to specify a subrange within the line to process.
+ * This allows skipping of line initial or final whitespace, for example. While this will ensure
+ * that the subrange fits width, the line will still be positioned with the first glyph of the
+ * line at 0. So the resulting positions may be beyond width.
+ *
+ * @return float The resulting width of the range of slots justified.
+ * @param pSeg Pointer to the segment
+ * @param pStart Pointer to the start of the line linked list (including skipped characters)
+ * @param pFont Font to use for positioning
+ * @param width Width in pixels in which to fit the line. If < 0. don't adjust natural width, just run justification passes
+ * to handle line end contextuals, if there are any.
+ * @param flags Indicates line ending types. Default is linked list is a full line
+ * @param pFirst If not NULL, the first slot in the list to be considered part of the line (so can skip)
+ * @param pLast If not NULL, the last slot to process in the line (allow say trailing whitespace to be skipped)
+ */
+GR2_API float gr_seg_justify(gr_segment* pSeg/*not NULL*/, const gr_slot* pStart/*not NULL*/, const gr_font *pFont, double width, enum gr_justFlags flags, const gr_slot* pFirst, const gr_slot* pLast);
+
+/** Returns the next slot along in the segment.
+ *
+ * Slots are held in a linked list. This returns the next in the linked list. The slot
+ * may or may not be attached to another slot. Returns NULL at the end of the segment.
+ */
+GR2_API const gr_slot* gr_slot_next_in_segment(const gr_slot* p);
+
+/** Returns the previous slot along in the segment.
+ *
+ * Slots are held in a doubly linked list. This returns the previos slot in the linked
+ * list. This slot may or may not be attached to it. Returns NULL at the start of the
+ * segment.
+ */
+GR2_API const gr_slot* gr_slot_prev_in_segment(const gr_slot* p);
+
+/** Returns the attachment parent slot of this slot.
+ *
+ * Attached slots form a tree. This returns the parent of this slot in that tree. A
+ * base glyph which is not attached to another glyph, always returns NULL.
+ */
+GR2_API const gr_slot* gr_slot_attached_to(const gr_slot* p);
+
+/** Returns the first slot attached to this slot.
+ *
+ * Attached slots form a singly linked list from the parent. This returns the first
+ * slot in that list. Note that this is a reference to another slot that is also in
+ * the main segment doubly linked list.
+ *
+ * if gr_slot_first_attachment(p) != NULL then gr_slot_attached_to(gr_slot_first_attachment(p)) == p.
+ */
+GR2_API const gr_slot* gr_slot_first_attachment(const gr_slot* p);
+
+/** Returns the next slot attached to our attachment parent.
+ *
+ * This returns the next slot in the singly linked list of slots attached to this
+ * slot's parent. If there are no more such slots, NULL is returned. If there is
+ * no parent, i.e. the passed slot is a cluster base, then the next cluster base
+ * in graphical order (ltr, even for rtl text) is returned.
+ *
+ * if gr_slot_next_sibling_attachment(p) != NULL then gr_slot_attached_to(gr_slot_next_sibling_attachment(p)) == gr_slot_attached_to(p).
+ */
+GR2_API const gr_slot* gr_slot_next_sibling_attachment(const gr_slot* p);
+
+
+/** Returns glyph id of the slot
+ *
+ * Each slot has a glyphid which is rendered at the position given by the slot. This
+ * glyphid is the real glyph to be rendered and never a pseudo glyph.
+ */
+GR2_API unsigned short gr_slot_gid(const gr_slot* p);
+
+/** Returns X offset of glyph from start of segment **/
+GR2_API float gr_slot_origin_X(const gr_slot* p);
+
+/** Returns Y offset of glyph from start of segment **/
+GR2_API float gr_slot_origin_Y(const gr_slot* p);
+
+/** Returns the glyph advance for this glyph as adjusted for kerning
+ *
+ * @param p Slot to give results for
+ * @param face gr_face of the glyphs. May be NULL if unhinted advances used
+ * @param font gr_font to scale for pixel results. If NULL returns design
+ * units advance. If not NULL then returns pixel advance based
+ * on hinted or scaled glyph advances in the font. face must be
+ * passed for hinted advances to be used.
+ */
+GR2_API float gr_slot_advance_X(const gr_slot* p, const gr_face* face, const gr_font *font);
+
+/** Returns the vertical advance for the glyph in the slot adjusted for kerning
+ *
+ * Returns design units unless font is not NULL in which case the pixel value
+ * is returned scaled for the given font
+ */
+GR2_API float gr_slot_advance_Y(const gr_slot* p, const gr_face* face, const gr_font *font);
+
+/** Returns the gr_char_info index before us
+ *
+ * Returns the index of the gr_char_info that a cursor before this slot, would put
+ * an underlying cursor before. This may also be interpretted as each slot holding
+ * a set of char_infos that it is associated with and this function returning the
+ * index of the char_info with lowest index, from this set.
+ */
+GR2_API int gr_slot_before(const gr_slot* p/*not NULL*/);
+
+/** Returns the gr_char_info index after us
+ *
+ * Returns the index of the gr_char_info that a cursor after this slot would put an
+ * underlying cursor after. This may also be interpretted as each slot holding a set
+ * of char_infos that it is associated with and this function returning the index of
+ * the char_info with the highest index, from this set.
+ */
+GR2_API int gr_slot_after(const gr_slot* p/*not NULL*/);
+
+/** Returns the index of this slot in the segment
+ *
+ * Returns the index given to this slot during final positioning. This corresponds
+ * to the value returned br gr_cinfo_before() and gr_cinfo_after()
+ */
+GR2_API unsigned int gr_slot_index(const gr_slot* p/*not NULL*/);
+
+/** Return a slot attribute value
+ *
+ * Given a slot and an attribute along with a possible subattribute, return the
+ * corresponding value in the slot. See enum gr_attrCode for details of each attribute.
+ */
+GR2_API int gr_slot_attr(const gr_slot* p/*not NULL*/, const gr_segment* pSeg/*not NULL*/, enum gr_attrCode index, gr_uint8 subindex); //tbd - do we need to expose this?
+
+/** Returns whether text may be inserted before this glyph.
+ *
+ * This indicates whether a cursor can be put before this slot. It applies to
+ * base glyphs that have no parent as well as attached glyphs that have the
+ * .insert attribute explicitly set to true. This is the primary mechanism
+ * for identifying contiguous sequences of base plus diacritics.
+ */
+GR2_API int gr_slot_can_insert_before(const gr_slot* p);
+
+/** Returns the original gr_char_info index this slot refers to.
+ *
+ * Each Slot has a gr_char_info that it originates from. This is that gr_char_info.
+ * The index is passed to gr_seg_cinfo(). This information is useful for testing.
+ */
+GR2_API int gr_slot_original(const gr_slot* p/*not NULL*/);
+
+/** Breaks a segment into lines.
+ *
+ * Breaks the slot linked list at the given point in the linked list. It is up
+ * to the application to keep track of the first slot on each line.
+ */
+GR2_API void gr_slot_linebreak_before(gr_slot *p/*not NULL*/);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/gfx/graphite2/include/graphite2/Types.h b/gfx/graphite2/include/graphite2/Types.h
new file mode 100644
index 000000000..e8e45c1ff
--- /dev/null
+++ b/gfx/graphite2/include/graphite2/Types.h
@@ -0,0 +1,72 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, the contents of this file may be used under the terms
+ of the Mozilla Public License (http://mozilla.org/MPL) or the GNU
+ General Public License, as published by the Free Software Foundation,
+ either version 2 of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <stddef.h>
+
+typedef unsigned char gr_uint8;
+typedef gr_uint8 gr_byte;
+typedef signed char gr_int8;
+typedef unsigned short gr_uint16;
+typedef short gr_int16;
+typedef unsigned int gr_uint32;
+typedef int gr_int32;
+
+enum gr_encform {
+ gr_utf8 = 1/*sizeof(uint8)*/, gr_utf16 = 2/*sizeof(uint16)*/, gr_utf32 = 4/*sizeof(uint32)*/
+};
+
+// Definitions for library publicly exported symbols
+#if defined _WIN32 || defined __CYGWIN__
+ #if defined GRAPHITE2_STATIC
+ #define GR2_API
+ #elif defined GRAPHITE2_EXPORTING
+ #if defined __GNUC__
+ #define GR2_API __attribute__((dllexport))
+ #else
+ #define GR2_API __declspec(dllexport)
+ #endif
+ #else
+ #if defined __GNUC__
+ #define GR2_API __attribute__((dllimport))
+ #else
+ #define GR2_API __declspec(dllimport)
+ #endif
+ #endif
+ #define GR2_LOCAL
+#elif __GNUC__ >= 4
+ #if defined GRAPHITE2_STATIC
+ #define GR2_API __attribute__ ((visibility("hidden")))
+ #else
+ #define GR2_API __attribute__ ((visibility("default")))
+ #endif
+ #define GR2_LOCAL __attribute__ ((visibility("hidden")))
+#else
+ #define GR2_API
+ #define GR2_LOCAL
+#endif
+
diff --git a/gfx/graphite2/include/graphite2/XmlLog.h b/gfx/graphite2/include/graphite2/XmlLog.h
new file mode 100644
index 000000000..554132756
--- /dev/null
+++ b/gfx/graphite2/include/graphite2/XmlLog.h
@@ -0,0 +1,55 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+ Alternatively, the contents of this file may be used under the terms
+ of the Mozilla Public License (http://mozilla.org/MPL) or the GNU
+ General Public License, as published by the Free Software Foundation,
+ either version 2 of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <graphite2/Types.h>
+#include <stdio.h>
+
+typedef enum {
+ GRLOG_NONE = 0x0,
+ GRLOG_FACE = 0x01,
+ GRLOG_SEGMENT = 0x02,
+ GRLOG_PASS = 0x04,
+ GRLOG_CACHE = 0x08,
+
+ GRLOG_OPCODE = 0x80,
+ GRLOG_ALL = 0xFF
+} GrLogMask;
+
+// If startGraphiteLogging returns true, logging is enabled and the FILE handle
+// will be closed by graphite when stopGraphiteLogging is called.
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+GR2_API bool graphite_start_logging(FILE * logFile, GrLogMask mask); //may not do anthing if disabled in the implementation of the engine.
+GR2_API void graphite_stop_logging();
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/gfx/graphite2/moz-gr-update.sh b/gfx/graphite2/moz-gr-update.sh
new file mode 100644
index 000000000..faaab1b17
--- /dev/null
+++ b/gfx/graphite2/moz-gr-update.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Script used to update the Graphite2 library in the mozilla source tree
+
+# This script lives in gfx/graphite2, along with the library source,
+# but must be run from the top level of the mozilla-central tree.
+
+# Run as
+#
+# ./gfx/graphite2/moz-gr-update.sh RELEASE
+#
+# where RELEASE is the graphite2 release to be used, e.g. "1.3.4".
+
+RELEASE=$1
+
+if [ "x$RELEASE" == "x" ]
+then
+ echo "Must provide the version number to be used."
+ exit 1
+fi
+
+TARBALL="https://github.com/silnrsi/graphite/releases/download/$RELEASE/graphite2-minimal-$RELEASE.tgz"
+
+foo=`basename $0`
+TMPFILE=`mktemp -t ${foo}` || exit 1
+
+curl -L "$TARBALL" -o "$TMPFILE"
+tar -x -z -C gfx/graphite2/ --strip-components 1 -f "$TMPFILE" || exit 1
+rm "$TMPFILE"
+
+echo "This directory contains the Graphite2 library release $RELEASE from" > gfx/graphite2/README.mozilla
+echo "$TARBALL" >> gfx/graphite2/README.mozilla
+echo ""
+echo "See" $0 "for update procedure." >> gfx/graphite2/README.mozilla
+
+# fix up includes because of bug 721839 (cstdio) and bug 803066 (Windows.h)
+#find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \;
+#find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \;
+
+# summarize what's been touched
+echo Updated to $RELEASE.
+echo Here is what changed in the gfx/graphite2 directory:
+echo
+
+hg stat gfx/graphite2
+
+echo
+echo If gfx/graphite2/src/files.mk has changed, please make corresponding
+echo changes to gfx/graphite2/src/moz.build
+echo
+
+echo
+echo Now use hg commands to create a patch for the mozilla tree.
+echo
diff --git a/gfx/graphite2/src/Bidi.cpp b/gfx/graphite2/src/Bidi.cpp
new file mode 100644
index 000000000..48ec2ebfc
--- /dev/null
+++ b/gfx/graphite2/src/Bidi.cpp
@@ -0,0 +1,826 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Main.h"
+#include "inc/Slot.h"
+#include "inc/Segment.h"
+#include "inc/Bidi.h"
+
+using namespace graphite2;
+
+enum DirCode { // Hungarian: dirc
+ Unk = -1,
+ N = 0, // other neutrals (default) - ON
+ L = 1, // left-to-right, strong - L
+ R = 2, // right-to-left, strong - R
+ AL = 3, // Arabic letter, right-to-left, strong, AR
+ EN = 4, // European number, left-to-right, weak - EN
+ EUS = 5, // European separator, left-to-right, weak - ES
+ ET = 6, // European number terminator, left-to-right, weak - ET
+ AN = 7, // Arabic number, left-to-right, weak - AN
+ CUS = 8, // Common number separator, left-to-right, weak - CS
+ WS = 9, // white space, neutral - WS
+ BN = 10, // boundary neutral - BN
+
+ LRO = 11, // LTR override
+ RLO = 12, // RTL override
+ LRE = 13, // LTR embedding
+ RLE = 14, // RTL embedding
+ PDF = 15, // pop directional format
+ NSM = 16, // non-space mark
+ LRI = 17, // LRI isolate
+ RLI = 18, // RLI isolate
+ FSI = 19, // FSI isolate
+ PDI = 20, // pop isolate
+ OPP = 21, // opening paired parenthesis
+ CPP = 22, // closing paired parenthesis
+
+ ON = N
+};
+
+enum DirMask {
+ WSflag = int8(1 << 7), // keep track of WS for eos handling
+ WSMask = int8(~(1 << 7))
+};
+
+inline uint8 BaseClass(Slot *s) { return s->getBidiClass() & WSMask; }
+
+unsigned int bidi_class_map[] = { 0, 1, 2, 5, 4, 8, 9, 3, 7, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0 };
+// Algorithms based on Unicode reference standard code. Thanks Asmus Freitag.
+
+void resolveWeak(Slot *start, int sos, int eos);
+void resolveNeutrals(Slot *s, int baseLevel, int sos, int eos);
+void processParens(Slot *s, Segment *seg, uint8 aMirror, int level, BracketPairStack &stack);
+
+inline int calc_base_level(Slot *s)
+{
+ int count = 0;
+ for ( ; s; s = s->next())
+ {
+ int cls = s->getBidiClass();
+ if (count)
+ {
+ switch(cls)
+ {
+ case LRI :
+ case RLI :
+ case FSI :
+ ++count;
+ break;
+ case PDI :
+ --count;
+ }
+ }
+ else
+ {
+ switch(cls)
+ {
+ case L :
+ return 0;
+ case R :
+ case AL :
+ return 1;
+ case LRI :
+ case RLI :
+ case FSI :
+ ++count;
+ }
+ }
+ }
+ return 0;
+}
+
+// inline or not?
+void do_resolves(Slot *start, int level, int sos, int eos, int &bmask, Segment *seg, uint8 aMirror, BracketPairStack &stack)
+{
+ if (bmask & 0x1F1178)
+ resolveWeak(start, sos, eos);
+ if (bmask & 0x200000)
+ processParens(start, seg, aMirror, level, stack);
+ if (bmask & 0x7E0361)
+ resolveNeutrals(start, level, sos, eos);
+ bmask = 0;
+}
+
+enum maxs
+{
+ MAX_LEVEL = 125,
+};
+
+// returns where we are up to in processing
+Slot *process_bidi(Slot *start, int level, int prelevel, int &nextLevel, int dirover, int isol, int &cisol, int &isolerr, int &embederr, int init, Segment *seg, uint8 aMirror, BracketPairStack &bstack)
+{
+ int bmask = 0;
+ Slot *s = start;
+ Slot *slast = start;
+ Slot *scurr = 0;
+ Slot *stemp;
+ int lnextLevel = nextLevel;
+ int newLevel;
+ int empty = 1;
+ for ( ; s; s = s ? s->next() : s)
+ {
+ int cls = s->getBidiClass();
+ bmask |= (1 << cls);
+ s->setBidiLevel(level);
+ // we keep s->prev() pointing backwards for PDI repeating
+
+ switch (cls)
+ {
+ case BN :
+ if (slast == s) slast = s->next(); // ignore if at front of text
+ continue;
+ case LRE :
+ case LRO :
+ case RLE :
+ case RLO :
+ switch (cls)
+ {
+ case LRE :
+ case LRO :
+ newLevel = level + (level & 1 ? 1 : 2);
+ break;
+ case RLE :
+ case RLO :
+ newLevel = level + (level & 1 ? 2 : 1);
+ break;
+ }
+ s->setBidiClass(BN);
+ if (isolerr || newLevel > MAX_LEVEL || embederr)
+ {
+ if (!isolerr) ++embederr;
+ break;
+ }
+ stemp = scurr;
+ if (scurr)
+ scurr->prev(0); // don't include control in string
+ lnextLevel = newLevel;
+ scurr = s;
+ s->setBidiLevel(newLevel); // to make it vanish
+ // recurse for the new subsequence. A sequence only contains text at the same level
+ s = process_bidi(s->next(), newLevel, level, lnextLevel, cls < LRE, 0, cisol, isolerr, embederr, 0, seg, aMirror, bstack);
+ // s points at PDF or end of sequence
+ // try to keep extending the run and not process it until we have to
+ if (lnextLevel != level || !s) // if the subsequence really had something in it, or we are at the end of the run
+ {
+ if (slast != scurr) // process the run now, don't try to extend it
+ {
+ // process text preceeding embedding
+ do_resolves(slast, level, (prelevel > level ? prelevel : level) & 1, lnextLevel & 1, bmask, seg, aMirror, bstack);
+ empty = 0;
+ nextLevel = level;
+ }
+ else if (lnextLevel != level) // the subsequence had something
+ {
+ empty = 0; // so we aren't empty either
+ nextLevel = lnextLevel; // but since we really are empty, pass back our level from the subsequence
+ }
+ if (s) // if still more to process
+ {
+ prelevel = lnextLevel; // future text starts out with sos of the higher subsequence
+ lnextLevel = level; // and eos is our level
+ }
+ slast = s ? s->next() : s;
+ }
+ else if (stemp)
+ stemp->prev(s);
+ break;
+
+ case PDF :
+ s->setBidiClass(BN);
+ s->prev(0); // unstitch us since we skip final stitching code when we return
+ if (isol || isolerr || init) // boundary error conditions
+ break;
+ if (embederr)
+ {
+ --embederr;
+ break;
+ }
+ if (slast != s)
+ {
+ scurr->prev(0); // if slast, then scurr. Terminate before here
+ do_resolves(slast, level, level & 1, level & 1, bmask, seg, aMirror, bstack);
+ empty = 0;
+ }
+ if (empty)
+ {
+ nextLevel = prelevel; // no contents? set our level to that of parent
+ s->setBidiLevel(prelevel);
+ }
+ return s;
+
+ case FSI :
+ case LRI :
+ case RLI :
+ switch (cls)
+ {
+ case FSI :
+ if (calc_base_level(s->next()))
+ newLevel = level + (level & 1 ? 2 : 1);
+ else
+ newLevel = level + (level & 1 ? 1 : 2);
+ break;
+ case LRI :
+ newLevel = level + (level & 1 ? 1 : 2);
+ break;
+ case RLI :
+ newLevel = level + (level & 1 ? 2 : 1);
+ break;
+ }
+ if (newLevel > MAX_LEVEL || isolerr)
+ {
+ ++isolerr;
+ s->setBidiClass(ON | WSflag);
+ break;
+ }
+ ++cisol;
+ if (scurr) scurr->prev(s);
+ scurr = s; // include FSI
+ lnextLevel = newLevel;
+ // recurse for the new sub sequence
+ s = process_bidi(s->next(), newLevel, newLevel, lnextLevel, 0, 1, cisol, isolerr, embederr, 0, seg, aMirror, bstack);
+ // s points at PDI
+ if (s)
+ {
+ bmask |= 1 << BaseClass(s); // include the PDI in the mask
+ s->setBidiLevel(level); // reset its level to our level
+ }
+ lnextLevel = level;
+ break;
+
+ case PDI :
+ if (isolerr)
+ {
+ --isolerr;
+ s->setBidiClass(ON | WSflag);
+ break;
+ }
+ if (init || !cisol)
+ {
+ s->setBidiClass(ON | WSflag);
+ break;
+ }
+ embederr = 0;
+ if (!isol) // we are in an embedded subsequence, we have to return through all those
+ {
+ if (empty) // if empty, reset the level to tell embedded parent
+ nextLevel = prelevel;
+ return s->prev(); // keep working up the stack pointing at this PDI until we get to an isolate entry
+ }
+ else // we are terminating an isolate sequence
+ {
+ if (slast != s) // process any remaining content in this subseqence
+ {
+ scurr->prev(0);
+ do_resolves(slast, level, prelevel & 1, level & 1, bmask, seg, aMirror, bstack);
+ }
+ --cisol; // pop the isol sequence from the stack
+ return s;
+ }
+
+ default :
+ if (dirover)
+ s->setBidiClass((level & 1 ? R : L) | (WSflag * (cls == WS)));
+ }
+ if (s) s->prev(0); // unstitch us
+ if (scurr) // stitch in text for processing
+ scurr->prev(s);
+ scurr = s; // add us to text to process
+ }
+ if (slast != s)
+ {
+ do_resolves(slast, level, (level > prelevel ? level : prelevel) & 1, lnextLevel & 1, bmask, seg, aMirror, bstack);
+ empty = 0;
+ }
+ if (empty || isol)
+ nextLevel = prelevel;
+ return s;
+}
+
+// === RESOLVE WEAK TYPES ================================================
+
+enum bidi_state // possible states
+{
+ xa, // arabic letter
+ xr, // right leter
+ xl, // left letter
+
+ ao, // arabic lett. foll by ON
+ ro, // right lett. foll by ON
+ lo, // left lett. foll by ON
+
+ rt, // ET following R
+ lt, // ET following L
+
+ cn, // EN, AN following AL
+ ra, // arabic number foll R
+ re, // european number foll R
+ la, // arabic number foll L
+ le, // european number foll L
+
+ ac, // CS following cn
+ rc, // CS following ra
+ rs, // CS,ES following re
+ lc, // CS following la
+ ls, // CS,ES following le
+
+ ret, // ET following re
+ let, // ET following le
+} ;
+
+const bidi_state stateWeak[][10] =
+{
+ // N, L, R, AN, EN, AL,NSM, CS, ES, ET,
+{ /*xa*/ ao, xl, xr, cn, cn, xa, xa, ao, ao, ao, /* arabic letter */ },
+{ /*xr*/ ro, xl, xr, ra, re, xa, xr, ro, ro, rt, /* right letter */ },
+{ /*xl*/ lo, xl, xr, la, le, xa, xl, lo, lo, lt, /* left letter */ },
+
+{ /*ao*/ ao, xl, xr, cn, cn, xa, ao, ao, ao, ao, /* arabic lett. foll by ON*/ },
+{ /*ro*/ ro, xl, xr, ra, re, xa, ro, ro, ro, rt, /* right lett. foll by ON */ },
+{ /*lo*/ lo, xl, xr, la, le, xa, lo, lo, lo, lt, /* left lett. foll by ON */ },
+
+{ /*rt*/ ro, xl, xr, ra, re, xa, rt, ro, ro, rt, /* ET following R */ },
+{ /*lt*/ lo, xl, xr, la, le, xa, lt, lo, lo, lt, /* ET following L */ },
+
+{ /*cn*/ ao, xl, xr, cn, cn, xa, cn, ac, ao, ao, /* EN, AN following AL */ },
+{ /*ra*/ ro, xl, xr, ra, re, xa, ra, rc, ro, rt, /* arabic number foll R */ },
+{ /*re*/ ro, xl, xr, ra, re, xa, re, rs, rs,ret, /* european number foll R */ },
+{ /*la*/ lo, xl, xr, la, le, xa, la, lc, lo, lt, /* arabic number foll L */ },
+{ /*le*/ lo, xl, xr, la, le, xa, le, ls, ls,let, /* european number foll L */ },
+
+{ /*ac*/ ao, xl, xr, cn, cn, xa, ao, ao, ao, ao, /* CS following cn */ },
+{ /*rc*/ ro, xl, xr, ra, re, xa, ro, ro, ro, rt, /* CS following ra */ },
+{ /*rs*/ ro, xl, xr, ra, re, xa, ro, ro, ro, rt, /* CS,ES following re */ },
+{ /*lc*/ lo, xl, xr, la, le, xa, lo, lo, lo, lt, /* CS following la */ },
+{ /*ls*/ lo, xl, xr, la, le, xa, lo, lo, lo, lt, /* CS,ES following le */ },
+
+{ /*ret*/ ro, xl, xr, ra, re, xa,ret, ro, ro,ret, /* ET following re */ },
+{ /*let*/ lo, xl, xr, la, le, xa,let, lo, lo,let, /* ET following le */ },
+
+
+};
+
+enum bidi_action // possible actions
+{
+ // primitives
+ IX = 0x100, // increment
+ XX = 0xF, // no-op
+
+ // actions
+ xxx = (XX << 4) + XX, // no-op
+ xIx = IX + xxx, // increment run
+ xxN = (XX << 4) + ON, // set current to N
+ xxE = (XX << 4) + EN, // set current to EN
+ xxA = (XX << 4) + AN, // set current to AN
+ xxR = (XX << 4) + R, // set current to R
+ xxL = (XX << 4) + L, // set current to L
+ Nxx = (ON << 4) + 0xF, // set run to neutral
+ Axx = (AN << 4) + 0xF, // set run to AN
+ ExE = (EN << 4) + EN, // set run to EN, set current to EN
+ NIx = (ON << 4) + 0xF + IX, // set run to N, increment
+ NxN = (ON << 4) + ON, // set run to N, set current to N
+ NxR = (ON << 4) + R, // set run to N, set current to R
+ NxE = (ON << 4) + EN, // set run to N, set current to EN
+
+ AxA = (AN << 4) + AN, // set run to AN, set current to AN
+ NxL = (ON << 4) + L, // set run to N, set current to L
+ LxL = (L << 4) + L, // set run to L, set current to L
+};
+
+
+const bidi_action actionWeak[][10] =
+{
+ // N,.. L, R, AN, EN, AL, NSM, CS,..ES, ET,
+{ /*xa*/ xxx, xxx, xxx, xxx, xxA, xxR, xxR, xxN, xxN, xxN, /* arabic letter */ },
+{ /*xr*/ xxx, xxx, xxx, xxx, xxE, xxR, xxR, xxN, xxN, xIx, /* right leter */ },
+{ /*xl*/ xxx, xxx, xxx, xxx, xxL, xxR, xxL, xxN, xxN, xIx, /* left letter */ },
+
+{ /*ao*/ xxx, xxx, xxx, xxx, xxA, xxR, xxN, xxN, xxN, xxN, /* arabic lett. foll by ON */ },
+{ /*ro*/ xxx, xxx, xxx, xxx, xxE, xxR, xxN, xxN, xxN, xIx, /* right lett. foll by ON */ },
+{ /*lo*/ xxx, xxx, xxx, xxx, xxL, xxR, xxN, xxN, xxN, xIx, /* left lett. foll by ON */ },
+
+{ /*rt*/ Nxx, Nxx, Nxx, Nxx, ExE, NxR, xIx, NxN, NxN, xIx, /* ET following R */ },
+{ /*lt*/ Nxx, Nxx, Nxx, Nxx, LxL, NxR, xIx, NxN, NxN, xIx, /* ET following L */ },
+
+{ /*cn*/ xxx, xxx, xxx, xxx, xxA, xxR, xxA, xIx, xxN, xxN, /* EN, AN following AL */ },
+{ /*ra*/ xxx, xxx, xxx, xxx, xxE, xxR, xxA, xIx, xxN, xIx, /* arabic number foll R */ },
+{ /*re*/ xxx, xxx, xxx, xxx, xxE, xxR, xxE, xIx, xIx, xxE, /* european number foll R */ },
+{ /*la*/ xxx, xxx, xxx, xxx, xxL, xxR, xxA, xIx, xxN, xIx, /* arabic number foll L */ },
+{ /*le*/ xxx, xxx, xxx, xxx, xxL, xxR, xxL, xIx, xIx, xxL, /* european number foll L */ },
+
+{ /*ac*/ Nxx, Nxx, Nxx, Axx, AxA, NxR, NxN, NxN, NxN, NxN, /* CS following cn */ },
+{ /*rc*/ Nxx, Nxx, Nxx, Axx, NxE, NxR, NxN, NxN, NxN, NIx, /* CS following ra */ },
+{ /*rs*/ Nxx, Nxx, Nxx, Nxx, ExE, NxR, NxN, NxN, NxN, NIx, /* CS,ES following re */ },
+{ /*lc*/ Nxx, Nxx, Nxx, Axx, NxL, NxR, NxN, NxN, NxN, NIx, /* CS following la */ },
+{ /*ls*/ Nxx, Nxx, Nxx, Nxx, LxL, NxR, NxN, NxN, NxN, NIx, /* CS,ES following le */ },
+
+{ /*ret*/xxx, xxx, xxx, xxx, xxE, xxR, xxE, xxN, xxN, xxE, /* ET following re */ },
+{ /*let*/xxx, xxx, xxx, xxx, xxL, xxR, xxL, xxN, xxN, xxL, /* ET following le */ },
+};
+
+inline uint8 GetDeferredType(bidi_action a) { return (a >> 4) & 0xF; }
+inline uint8 GetResolvedType(bidi_action a) { return a & 0xF; }
+inline DirCode EmbeddingDirection(int l) { return l & 1 ? R : L; }
+
+// Neutrals
+enum neutral_action
+{
+ // action to resolve previous input
+ nL = L, // resolve EN to L
+ En = 3 << 4, // resolve neutrals run to embedding level direction
+ Rn = R << 4, // resolve neutrals run to strong right
+ Ln = L << 4, // resolved neutrals run to strong left
+ In = (1<<8), // increment count of deferred neutrals
+ LnL = (1<<4)+L, // set run and EN to L
+};
+
+// ->prev() here means ->next()
+void SetDeferredRunClass(Slot *s, Slot *sRun, int nval)
+{
+ if (!sRun || s == sRun) return;
+ for (Slot *p = sRun; p != s; p = p->prev())
+ if (p->getBidiClass() == WS) p->setBidiClass(nval | WSflag);
+ else if (BaseClass(p) != BN) p->setBidiClass(nval | (p->getBidiClass() & WSflag));
+}
+
+void SetThisDeferredRunClass(Slot *s, Slot *sRun, int nval)
+{
+ if (!sRun) return;
+ for (Slot *p = sRun, *e = s->prev(); p != e; p = p->prev())
+ if (p->getBidiClass() == WS) p->setBidiClass(nval | WSflag);
+ else if (BaseClass(p) != BN) p->setBidiClass(nval | (p->getBidiClass() & WSflag));
+}
+
+void resolveWeak(Slot *start, int sos, int eos)
+{
+ int state = (sos & 1) ? xr : xl;
+ int cls;
+ Slot *s = start;
+ Slot *sRun = NULL;
+ Slot *sLast = s;
+
+ for ( ; s; s = s->prev())
+ {
+ sLast = s;
+ cls = BaseClass(s);
+ switch (cls)
+ {
+ case BN :
+ if (s == start) start = s->prev(); // skip initial BNs for NSM resolving
+ continue;
+ case LRI :
+ case RLI :
+ case FSI :
+ case PDI :
+ {
+ Slot *snext = s->prev();
+ if (snext && snext->getBidiClass() == NSM)
+ snext->setBidiClass(ON);
+ s->setBidiClass(ON | WSflag);
+ }
+ break;
+
+ case NSM :
+ if (s == start)
+ {
+ cls = EmbeddingDirection(sos);
+ s->setBidiClass(cls);
+ }
+ break;
+ }
+
+ bidi_action action = actionWeak[state][bidi_class_map[cls]];
+ int clsRun = GetDeferredType(action);
+ if (clsRun != XX)
+ {
+ SetDeferredRunClass(s, sRun, clsRun);
+ sRun = NULL;
+ }
+ int clsNew = GetResolvedType(action);
+ if (clsNew != XX)
+ s->setBidiClass(clsNew);
+ if (!sRun && (IX & action))
+ sRun = s;
+ state = stateWeak[state][bidi_class_map[cls]];
+ }
+
+ cls = EmbeddingDirection(eos);
+ int clsRun = GetDeferredType(actionWeak[state][bidi_class_map[cls]]);
+ if (clsRun != XX)
+ SetThisDeferredRunClass(sLast, sRun, clsRun);
+}
+
+void processParens(Slot *s, Segment *seg, uint8 aMirror, int level, BracketPairStack &stack)
+{
+ uint8 mask = 0;
+ int8 lastDir = -1;
+ BracketPair *p;
+ for ( ; s; s = s->prev()) // walk the sequence
+ {
+ uint16 ogid = seg->glyphAttr(s->gid(), aMirror) || s->gid();
+ int cls = BaseClass(s);
+
+ switch(cls)
+ {
+ case OPP :
+ stack.orin(mask);
+ stack.push(ogid, s, lastDir, lastDir != CPP);
+ mask = 0;
+ lastDir = OPP;
+ break;
+ case CPP :
+ stack.orin(mask);
+ p = stack.scan(s->gid());
+ if (!p) break;
+ mask = 0;
+ stack.close(p, s);
+ lastDir = CPP;
+ break;
+ case L :
+ lastDir = L;
+ mask |= 1;
+ break;
+ case R :
+ case AL :
+ case AN :
+ case EN :
+ lastDir = R;
+ mask |= 2;
+ }
+ }
+ if (stack.size())
+ {
+ for (p = stack.start(); p; p =p->next()) // walk the stack
+ {
+ if (p->close() && p->mask())
+ {
+ int dir = (level & 1) + 1;
+ if (p->mask() & dir)
+ { }
+ else if (p->mask() & (1 << (~level & 1))) // if inside has strong other embedding
+ {
+ int ldir = p->before();
+ if ((p->before() == OPP || p->before() == CPP) && p->prev())
+ {
+ for (BracketPair *q = p->prev(); q; q = q->prev())
+ {
+ ldir = q->open()->getBidiClass();
+ if (ldir < 3) break;
+ ldir = q->before();
+ if (ldir < 3) break;
+ }
+ if (ldir > 2) ldir = 0;
+ }
+ if (ldir > 0 && (ldir - 1) != (level & 1)) // is dir given opp. to level dir (ldir == R or L)
+ dir = (~level & 1) + 1;
+ }
+ p->open()->setBidiClass(dir);
+ p->close()->setBidiClass(dir);
+ }
+ }
+ stack.clear();
+ }
+}
+
+int GetDeferredNeutrals(int action, int level)
+{
+ action = (action >> 4) & 0xF;
+ if (action == (En >> 4))
+ return EmbeddingDirection(level);
+ else
+ return action;
+}
+
+int GetResolvedNeutrals(int action)
+{
+ return action & 0xF;
+}
+
+// state values
+enum neutral_state
+{
+ // new temporary class
+ r, // R and characters resolved to R
+ l, // L and characters resolved to L
+ rn, // N preceded by right
+ ln, // N preceded by left
+ a, // AN preceded by left (the abbrev 'la' is used up above)
+ na, // N preceeded by a
+} ;
+
+const uint8 neutral_class_map[] = { 0, 1, 2, 0, 4, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+const int actionNeutrals[][5] =
+{
+// cls= N, L, R, AN, EN, state =
+{ In, 0, 0, 0, 0, }, // r right
+{ In, 0, 0, 0, L, }, // l left
+
+{ In, En, Rn, Rn, Rn, }, // rn N preceded by right
+{ In, Ln, En, En, LnL, }, // ln N preceded by left
+
+{ In, 0, 0, 0, L, }, // a AN preceded by left
+{ In, En, Rn, Rn, En, }, // na N preceded by a
+} ;
+
+const int stateNeutrals[][5] =
+{
+// cls= N, L, R, AN, EN state =
+{ rn, l, r, r, r, }, // r right
+{ ln, l, r, a, l, }, // l left
+
+{ rn, l, r, r, r, }, // rn N preceded by right
+{ ln, l, r, a, l, }, // ln N preceded by left
+
+{ na, l, r, a, l, }, // a AN preceded by left
+{ na, l, r, a, l, }, // na N preceded by la
+} ;
+
+void resolveNeutrals(Slot *s, int baseLevel, int sos, int eos)
+{
+ int state = (sos & 1) ? r : l;
+ int cls;
+ Slot *sRun = NULL;
+ Slot *sLast = s;
+ int level = baseLevel;
+
+ for ( ; s; s = s->prev())
+ {
+ sLast = s;
+ cls = BaseClass(s);
+ switch (cls)
+ {
+ case BN :
+ continue;
+ case LRI :
+ case RLI :
+ case FSI :
+ s->setBidiClass(BN | WSflag);
+ continue;
+
+ default :
+ int action = actionNeutrals[state][neutral_class_map[cls]];
+ int clsRun = GetDeferredNeutrals(action, level);
+ if (clsRun != N)
+ {
+ SetDeferredRunClass(s, sRun, clsRun);
+ sRun = NULL;
+ }
+ int clsNew = GetResolvedNeutrals(action);
+ if (clsNew != N)
+ s->setBidiClass(clsNew);
+ if (!sRun && (action & In))
+ sRun = s;
+ state = stateNeutrals[state][neutral_class_map[cls]];
+ }
+ }
+ cls = EmbeddingDirection(eos);
+ int clsRun = GetDeferredNeutrals(actionNeutrals[state][neutral_class_map[cls]], level);
+ if (clsRun != N)
+ SetThisDeferredRunClass(sLast, sRun, clsRun);
+}
+
+const int addLevel[][4] =
+{
+ // cls = L, R, AN, EN level =
+/* even */ { 0, 1, 2, 2, }, // EVEN
+/* odd */ { 1, 0, 1, 1, }, // ODD
+
+};
+
+void resolveImplicit(Slot *s, Segment *seg, uint8 aMirror)
+{
+ bool rtl = seg->dir() & 1;
+ int level = rtl;
+ Slot *slast = 0;
+ for ( ; s; s = s->next())
+ {
+ int cls = BaseClass(s);
+ s->prev(slast); // restitch the prev() side of the doubly linked list
+ slast = s;
+ if (cls == AN)
+ cls = AL; // use AL value as the index for AN, no property change
+ if (cls < 5 && cls > 0)
+ {
+ level = s->getBidiLevel();
+ level += addLevel[level & 1][cls - 1];
+ s->setBidiLevel(level);
+ }
+ if (aMirror)
+ {
+ int hasChar = seg->glyphAttr(s->gid(), aMirror + 1);
+ if ( ((level & 1) && (!(seg->dir() & 4) || !hasChar))
+ || ((rtl ^ (level & 1)) && (seg->dir() & 4) && hasChar) )
+ {
+ unsigned short g = seg->glyphAttr(s->gid(), aMirror);
+ if (g) s->setGlyph(seg, g);
+ }
+ }
+ }
+}
+
+void resolveWhitespace(int baseLevel, Slot *s)
+{
+ for ( ; s; s = s->prev())
+ {
+ int8 cls = s->getBidiClass();
+ if (cls == WS || (cls & WSflag))
+ s->setBidiLevel(baseLevel);
+ else if (cls != BN)
+ break;
+ }
+}
+
+
+/*
+Stitch two spans together to make another span (with ends tied together).
+If the level is odd then swap the order of the two spans
+*/
+inline
+Slot * join(int level, Slot * a, Slot * b)
+{
+ if (!a) return b;
+ if (level & 1) { Slot * const t = a; a = b; b = t; }
+ Slot * const t = b->prev();
+ a->prev()->next(b); b->prev(a->prev()); // splice middle
+ t->next(a); a->prev(t); // splice ends
+ return a;
+}
+
+/*
+Given the first slot in a run of slots with the same bidi level, turn the run
+into it's own little doubly linked list ring (a span) with the two ends joined together.
+If the run is rtl then reverse its direction.
+Returns the first slot after the span
+*/
+Slot * span(Slot * & cs, const bool rtl)
+{
+ Slot * r = cs, * re = cs; cs = cs->next();
+ if (rtl)
+ {
+ Slot * t = r->next(); r->next(r->prev()); r->prev(t);
+ for (int l = r->getBidiLevel(); cs && (l == cs->getBidiLevel() || cs->getBidiClass() == BN); cs = cs->prev())
+ {
+ re = cs;
+ t = cs->next(); cs->next(cs->prev()); cs->prev(t);
+ }
+ r->next(re);
+ re->prev(r);
+ r = re;
+ }
+ else
+ {
+ for (int l = r->getBidiLevel(); cs && (l == cs->getBidiLevel() || cs->getBidiClass() == BN); cs = cs->next())
+ re = cs;
+ r->prev(re);
+ re->next(r);
+ }
+ if (cs) cs->prev(0);
+ return r;
+}
+
+inline int getlevel(const Slot *cs, const int level)
+{
+ while (cs && cs->getBidiClass() == BN)
+ { cs = cs->next(); }
+ if (cs)
+ return cs->getBidiLevel();
+ else
+ return level;
+}
+
+Slot *resolveOrder(Slot * & cs, const bool reordered, const int level)
+{
+ Slot * r = 0;
+ int ls;
+ while (cs && level <= (ls = getlevel(cs, level) - reordered))
+ {
+ r = join(level, r, level < ls
+ ? resolveOrder(/* updates */cs, reordered, level+1) // find span of heighest level
+ : span(/* updates */cs, level & 1));
+ }
+ return r;
+}
diff --git a/gfx/graphite2/src/CMakeLists.txt b/gfx/graphite2/src/CMakeLists.txt
new file mode 100644
index 000000000..08e1c8fa3
--- /dev/null
+++ b/gfx/graphite2/src/CMakeLists.txt
@@ -0,0 +1,158 @@
+# GRAPHITE2 LICENSING
+#
+# Copyright 2010, SIL International
+# All rights reserved.
+#
+# This library is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation; either version 2.1 of License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should also have received a copy of the GNU Lesser General Public
+# License along with this library in the file named "LICENSE".
+# If not, write to the Free Software Foundation, 51 Franklin Street,
+# Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+# internet at http://www.fsf.org/licenses/lgpl.html.
+
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8.0 FATAL_ERROR)
+project(graphite2_core)
+cmake_policy(SET CMP0012 NEW)
+INCLUDE(CheckCXXSourceCompiles)
+
+set(GRAPHITE_API_CURRENT 3)
+set(GRAPHITE_API_REVISION 0)
+set(GRAPHITE_API_AGE 1)
+set(GRAPHITE_VERSION ${GRAPHITE_API_CURRENT}.${GRAPHITE_API_REVISION}.${GRAPHITE_API_AGE})
+set(GRAPHITE_SO_VERSION ${GRAPHITE_API_CURRENT})
+
+include(TestBigEndian)
+
+include_directories(${PROJECT_SOURCE_DIR})
+
+set(SEGCACHE SegCache.cpp SegCacheEntry.cpp SegCacheStore.cpp)
+if (GRAPHITE2_NSEGCACHE)
+ add_definitions(-DGRAPHITE2_NSEGCACHE)
+ set(SEGCACHE)
+endif (GRAPHITE2_NSEGCACHE)
+
+set(FILEFACE FileFace.cpp)
+if (GRAPHITE2_NFILEFACE)
+ add_definitions(-DGRAPHITE2_NFILEFACE)
+ set(FILEFACE)
+endif (GRAPHITE2_NFILEFACE)
+
+set(TRACING json.cpp)
+if (GRAPHITE2_NTRACING)
+ add_definitions(-DGRAPHITE2_NTRACING)
+ set(TRACING)
+endif (GRAPHITE2_NTRACING)
+
+if (GRAPHITE2_TELEMETRY)
+ add_definitions(-DGRAPHITE2_TELEMETRY)
+endif (GRAPHITE2_TELEMETRY)
+
+set(GRAPHITE_HEADERS
+ ../include/graphite2/Font.h
+ ../include/graphite2/Segment.h
+ ../include/graphite2/Types.h
+ ../include/graphite2/Log.h
+ )
+
+file(GLOB PRIVATE_HEADERS inc/*.h)
+
+add_library(graphite2 SHARED
+ ${GRAPHITE2_VM_TYPE}_machine.cpp
+ gr_char_info.cpp
+ gr_features.cpp
+ gr_face.cpp
+ gr_font.cpp
+ gr_logging.cpp
+ gr_segment.cpp
+ gr_slot.cpp
+ CachedFace.cpp
+ CmapCache.cpp
+ Code.cpp
+ Collider.cpp
+ Decompressor.cpp
+ Face.cpp
+ FeatureMap.cpp
+ Font.cpp
+ GlyphFace.cpp
+ GlyphCache.cpp
+ Intervals.cpp
+ Justifier.cpp
+ NameTable.cpp
+ Pass.cpp
+ Position.cpp
+ Segment.cpp
+ Silf.cpp
+ Slot.cpp
+ Sparse.cpp
+ TtfUtil.cpp
+ UtfCodec.cpp
+ ${FILEFACE}
+ ${SEGCACHE}
+ ${TRACING})
+
+set_target_properties(graphite2 PROPERTIES PUBLIC_HEADER "${GRAPHITE_HEADERS}"
+ SOVERSION ${GRAPHITE_SO_VERSION}
+ VERSION ${GRAPHITE_VERSION}
+ LT_VERSION_CURRENT ${GRAPHITE_API_CURRENT}
+ LT_VERSION_REVISION ${GRAPHITE_API_REVISION}
+ LT_VERSION_AGE ${GRAPHITE_API_AGE})
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+ set_target_properties(graphite2 PROPERTIES
+ COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wctor-dtor-privacy -Wnon-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector"
+ LINK_FLAGS "-nodefaultlibs ${GRAPHITE_LINK_FLAGS}"
+ LINKER_LANGUAGE C)
+ if (${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86|i.86")
+ add_definitions(-mfpmath=sse -msse2)
+ endif (${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86|i.86")
+ if (CMAKE_COMPILER_IS_GNUCXX)
+ add_definitions(-Wdouble-promotion)
+ endif (CMAKE_COMPILER_IS_GNUCXX)
+ message(STATUS "Compiler ID is: ${CMAKE_CXX_COMPILER_ID}")
+ if (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+ add_definitions(-Wimplicit-fallthrough)
+ endif (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+ if (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*")
+ target_link_libraries(graphite2 kernel32 msvcr90 mingw32 gcc user32)
+ else (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*")
+ if (GRAPHITE2_ASAN)
+ target_link_libraries(graphite2 c gcc_s)
+ else (GRAPHITE2_ASAN)
+ target_link_libraries(graphite2 c gcc)
+ endif (GRAPHITE2_ASAN)
+ include(Graphite)
+ nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>)
+ endif (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*")
+ set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "")
+ CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}")
+endif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+ set_target_properties(graphite2 PROPERTIES
+ COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wimplicit-fallthrough -Wendif-labels -Wshadow -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector -mfpmath=sse -msse2"
+ LINK_FLAGS "-nodefaultlibs"
+ LINKER_LANGUAGE C)
+ target_link_libraries(graphite2 c)
+ include(Graphite)
+ nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>)
+ set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "")
+ CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}")
+endif (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+ set_target_properties(graphite2 PROPERTIES
+ COMPILE_DEFINITIONS "_SCL_SECURE_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;UNICODE;GRAPHITE2_EXPORTING")
+endif (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+
+
+install(TARGETS graphite2 EXPORT graphite2 LIBRARY DESTINATION lib${LIB_SUFFIX} ARCHIVE DESTINATION lib${LIB_SUFFIX} PUBLIC_HEADER DESTINATION include/graphite2 RUNTIME DESTINATION bin)
+install(EXPORT graphite2 DESTINATION share/graphite2 NAMESPACE gr2_)
diff --git a/gfx/graphite2/src/CachedFace.cpp b/gfx/graphite2/src/CachedFace.cpp
new file mode 100644
index 000000000..71cd5ca45
--- /dev/null
+++ b/gfx/graphite2/src/CachedFace.cpp
@@ -0,0 +1,127 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include <graphite2/Segment.h>
+#include "inc/CachedFace.h"
+#include "inc/SegCacheStore.h"
+
+
+using namespace graphite2;
+
+CachedFace::CachedFace(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops)
+: Face(appFaceHandle, ops), m_cacheStore(0)
+{
+}
+
+CachedFace::~CachedFace()
+{
+ delete m_cacheStore;
+}
+
+bool CachedFace::setupCache(unsigned int cacheSize)
+{
+ m_cacheStore = new SegCacheStore(*this, m_numSilf, cacheSize);
+ return bool(m_cacheStore);
+}
+
+
+bool CachedFace::runGraphite(Segment *seg, const Silf *pSilf) const
+{
+ assert(pSilf);
+ pSilf->runGraphite(seg, 0, pSilf->substitutionPass());
+
+ unsigned int silfIndex = 0;
+ for (; silfIndex < m_numSilf && &(m_silfs[silfIndex]) != pSilf; ++silfIndex);
+ if (silfIndex == m_numSilf) return false;
+ SegCache * const segCache = m_cacheStore->getOrCreate(silfIndex, seg->getFeatures(0));
+ if (!segCache)
+ return false;
+
+ assert(m_cacheStore);
+ // find where the segment can be broken
+ Slot * subSegStartSlot = seg->first();
+ Slot * subSegEndSlot = subSegStartSlot;
+ uint16 cmapGlyphs[eMaxSpliceSize];
+ int subSegStart = 0;
+ for (unsigned int i = 0; i < seg->charInfoCount() && subSegEndSlot; ++i)
+ {
+ const unsigned int length = i - subSegStart + 1;
+ if (length < eMaxSpliceSize && subSegEndSlot->gid() < m_cacheStore->maxCmapGid())
+ cmapGlyphs[length-1] = subSegEndSlot->gid();
+ else return false;
+ const bool spaceOnly = m_cacheStore->isSpaceGlyph(subSegEndSlot->gid());
+ // at this stage the character to slot mapping is still 1 to 1
+ const int breakWeight = seg->charinfo(i)->breakWeight(),
+ nextBreakWeight = (i + 1 < seg->charInfoCount())?
+ seg->charinfo(i+1)->breakWeight() : 0;
+ const uint8 f = seg->charinfo(i)->flags();
+ if (((spaceOnly
+ || (breakWeight > 0 && breakWeight <= gr_breakWord)
+ || i + 1 == seg->charInfoCount()
+ || ((nextBreakWeight < 0 && nextBreakWeight >= gr_breakBeforeWord)
+ || (subSegEndSlot->next() && m_cacheStore->isSpaceGlyph(subSegEndSlot->next()->gid()))))
+ && f != 1)
+ || f == 2)
+ {
+ // record the next slot before any splicing
+ Slot * nextSlot = subSegEndSlot->next();
+ // spaces should be left untouched by graphite rules in any sane font
+ if (!spaceOnly)
+ {
+ // found a break position, check for a cache of the sub sequence
+ const SegCacheEntry * entry = segCache->find(cmapGlyphs, length);
+ // TODO disable cache for words at start/end of line with contextuals
+ if (!entry)
+ {
+ SegmentScopeState scopeState = seg->setScope(subSegStartSlot, subSegEndSlot, length);
+ pSilf->runGraphite(seg, pSilf->substitutionPass(), pSilf->numPasses());
+ if (length < eMaxSpliceSize)
+ {
+ seg->associateChars(subSegStart, length);
+ segCache->cache(m_cacheStore, cmapGlyphs, length, seg, subSegStart);
+ }
+ seg->removeScope(scopeState);
+ }
+ else
+ seg->splice(subSegStart, length, subSegStartSlot, subSegEndSlot,
+ entry->first(), entry->glyphLength());
+ }
+ subSegStartSlot = subSegEndSlot = nextSlot;
+ subSegStart = i + 1;
+ }
+ else
+ {
+ subSegEndSlot = subSegEndSlot->next();
+ }
+ }
+ return true;
+}
+
+#endif
+
diff --git a/gfx/graphite2/src/CmapCache.cpp b/gfx/graphite2/src/CmapCache.cpp
new file mode 100644
index 000000000..d070019a3
--- /dev/null
+++ b/gfx/graphite2/src/CmapCache.cpp
@@ -0,0 +1,155 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#include "inc/Main.h"
+#include "inc/CmapCache.h"
+#include "inc/Face.h"
+#include "inc/TtfTypes.h"
+#include "inc/TtfUtil.h"
+
+
+using namespace graphite2;
+
+const void * bmp_subtable(const Face::Table & cmap)
+{
+ const void * stbl;
+ if (!cmap.size()) return 0;
+ if (TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 1, cmap.size()), cmap + cmap.size())
+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 3, cmap.size()), cmap + cmap.size())
+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 2, cmap.size()), cmap + cmap.size())
+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 1, cmap.size()), cmap + cmap.size())
+ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 0, cmap.size()), cmap + cmap.size()))
+ return stbl;
+ return 0;
+}
+
+const void * smp_subtable(const Face::Table & cmap)
+{
+ const void * stbl;
+ if (!cmap.size()) return 0;
+ if (TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 10, cmap.size()), cmap + cmap.size())
+ || TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 4, cmap.size()), cmap + cmap.size()))
+ return stbl;
+ return 0;
+}
+
+template <unsigned int (*NextCodePoint)(const void *, unsigned int, int *),
+ uint16 (*LookupCodePoint)(const void *, unsigned int, int)>
+bool cache_subtable(uint16 * blocks[], const void * cst, const unsigned int limit)
+{
+ int rangeKey = 0;
+ uint32 codePoint = NextCodePoint(cst, 0, &rangeKey),
+ prevCodePoint = 0;
+ while (codePoint < limit)
+ {
+ unsigned int block = codePoint >> 8;
+ if (!blocks[block])
+ {
+ blocks[block] = grzeroalloc<uint16>(0x100);
+ if (!blocks[block])
+ return false;
+ }
+ blocks[block][codePoint & 0xFF] = LookupCodePoint(cst, codePoint, rangeKey);
+ // prevent infinite loop
+ if (codePoint <= prevCodePoint)
+ codePoint = prevCodePoint + 1;
+ prevCodePoint = codePoint;
+ codePoint = NextCodePoint(cst, codePoint, &rangeKey);
+ }
+ return true;
+}
+
+
+CachedCmap::CachedCmap(const Face & face)
+: m_isBmpOnly(true),
+ m_blocks(0)
+{
+ const Face::Table cmap(face, Tag::cmap);
+ if (!cmap) return;
+
+ const void * bmp_cmap = bmp_subtable(cmap);
+ const void * smp_cmap = smp_subtable(cmap);
+ m_isBmpOnly = !smp_cmap;
+
+ m_blocks = grzeroalloc<uint16 *>(m_isBmpOnly ? 0x100 : 0x1100);
+ if (m_blocks && smp_cmap)
+ {
+ if (!cache_subtable<TtfUtil::CmapSubtable12NextCodepoint, TtfUtil::CmapSubtable12Lookup>(m_blocks, smp_cmap, 0x10FFFF))
+ return;
+ }
+
+ if (m_blocks && bmp_cmap)
+ {
+ if (!cache_subtable<TtfUtil::CmapSubtable4NextCodepoint, TtfUtil::CmapSubtable4Lookup>(m_blocks, bmp_cmap, 0xFFFF))
+ return;
+ }
+}
+
+CachedCmap::~CachedCmap() throw()
+{
+ if (!m_blocks) return;
+ unsigned int numBlocks = (m_isBmpOnly)? 0x100 : 0x1100;
+ for (unsigned int i = 0; i < numBlocks; i++)
+ free(m_blocks[i]);
+ free(m_blocks);
+}
+
+uint16 CachedCmap::operator [] (const uint32 usv) const throw()
+{
+ if ((m_isBmpOnly && usv > 0xFFFF) || (usv > 0x10FFFF))
+ return 0;
+ const uint32 block = 0xFFFF & (usv >> 8);
+ if (m_blocks[block])
+ return m_blocks[block][usv & 0xFF];
+ return 0;
+};
+
+CachedCmap::operator bool() const throw()
+{
+ return m_blocks != 0;
+}
+
+
+DirectCmap::DirectCmap(const Face & face)
+: _cmap(face, Tag::cmap),
+ _smp(smp_subtable(_cmap)),
+ _bmp(bmp_subtable(_cmap))
+{
+}
+
+uint16 DirectCmap::operator [] (const uint32 usv) const throw()
+{
+ return usv > 0xFFFF
+ ? (_smp ? TtfUtil::CmapSubtable12Lookup(_smp, usv, 0) : 0)
+ : TtfUtil::CmapSubtable4Lookup(_bmp, usv, 0);
+}
+
+DirectCmap::operator bool () const throw()
+{
+ return _cmap && _bmp;
+}
+
diff --git a/gfx/graphite2/src/Code.cpp b/gfx/graphite2/src/Code.cpp
new file mode 100644
index 000000000..92ba92379
--- /dev/null
+++ b/gfx/graphite2/src/Code.cpp
@@ -0,0 +1,748 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This class represents loaded graphite stack machine code. It performs
+// basic sanity checks, on the incoming code to prevent more obvious problems
+// from crashing graphite.
+// Author: Tim Eves
+
+#include <cassert>
+#include <cstddef>
+#include <cstdlib>
+#include <cstring>
+#include "graphite2/Segment.h"
+#include "inc/Code.h"
+#include "inc/Face.h"
+#include "inc/GlyphFace.h"
+#include "inc/GlyphCache.h"
+#include "inc/Machine.h"
+#include "inc/Rule.h"
+#include "inc/Silf.h"
+
+#include <cstdio>
+
+#ifdef NDEBUG
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+#endif
+
+
+using namespace graphite2;
+using namespace vm;
+
+namespace {
+
+inline bool is_return(const instr i) {
+ const opcode_t * opmap = Machine::getOpcodeTable();
+ const instr pop_ret = *opmap[POP_RET].impl,
+ ret_zero = *opmap[RET_ZERO].impl,
+ ret_true = *opmap[RET_TRUE].impl;
+ return i == pop_ret || i == ret_zero || i == ret_true;
+}
+
+struct context
+{
+ context(uint8 ref=0) : codeRef(ref) {flags.changed=false; flags.referenced=false;}
+ struct {
+ uint8 changed:1,
+ referenced:1;
+ } flags;
+ uint8 codeRef;
+};
+
+} // end namespace
+
+
+class Machine::Code::decoder
+{
+public:
+ struct limits;
+ static const int NUMCONTEXTS = 256;
+
+ decoder(limits & lims, Code &code, enum passtype pt) throw();
+
+ bool load(const byte * bc_begin, const byte * bc_end);
+ void apply_analysis(instr * const code, instr * code_end);
+ byte max_ref() { return _max_ref; }
+ int out_index() const { return _out_index; }
+
+private:
+ void set_ref(int index) throw();
+ void set_noref(int index) throw();
+ void set_changed(int index) throw();
+ opcode fetch_opcode(const byte * bc);
+ void analyse_opcode(const opcode, const int8 * const dp) throw();
+ bool emit_opcode(opcode opc, const byte * & bc);
+ bool validate_opcode(const byte opc, const byte * const bc);
+ bool valid_upto(const uint16 limit, const uint16 x) const throw();
+ bool test_context() const throw();
+ bool test_ref(int8 index) const throw();
+ void failure(const status_t s) const throw() { _code.failure(s); }
+
+ Code & _code;
+ int _out_index;
+ uint16 _out_length;
+ instr * _instr;
+ byte * _data;
+ limits & _max;
+ enum passtype _passtype;
+ int _stack_depth;
+ bool _in_ctxt_item;
+ int16 _slotref;
+ context _contexts[NUMCONTEXTS];
+ byte _max_ref;
+};
+
+
+struct Machine::Code::decoder::limits
+{
+ const byte * bytecode;
+ const uint8 pre_context;
+ const uint16 rule_length,
+ classes,
+ glyf_attrs,
+ features;
+ const byte attrid[gr_slatMax];
+};
+
+inline Machine::Code::decoder::decoder(limits & lims, Code &code, enum passtype pt) throw()
+: _code(code),
+ _out_index(code._constraint ? 0 : lims.pre_context),
+ _out_length(code._constraint ? 1 : lims.rule_length),
+ _instr(code._code), _data(code._data), _max(lims), _passtype(pt),
+ _stack_depth(0),
+ _in_ctxt_item(false),
+ _slotref(0),
+ _max_ref(0)
+{ }
+
+
+
+Machine::Code::Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end,
+ uint8 pre_context, uint16 rule_length, const Silf & silf, const Face & face,
+ enum passtype pt, byte * * const _out)
+ : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), _status(loaded),
+ _constraint(is_constraint), _modify(false), _delete(false), _own(_out==0)
+{
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _code_cat(face.tele.code);
+#endif
+ assert(bytecode_begin != 0);
+ if (bytecode_begin == bytecode_end)
+ {
+ // ::new (this) Code();
+ return;
+ }
+ assert(bytecode_end > bytecode_begin);
+ const opcode_t * op_to_fn = Machine::getOpcodeTable();
+
+ // Allocate code and data target buffers, these sizes are a worst case
+ // estimate. Once we know their real sizes the we'll shrink them.
+ if (_out) _code = reinterpret_cast<instr *>(*_out);
+ else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin, 1, is_constraint ? 0 : rule_length)));
+ _data = reinterpret_cast<byte *>(_code + (bytecode_end - bytecode_begin));
+
+ if (!_code || !_data) {
+ failure(alloc_failed);
+ return;
+ }
+
+ decoder::limits lims = {
+ bytecode_end,
+ pre_context,
+ rule_length,
+ silf.numClasses(),
+ face.glyphs().numAttrs(),
+ face.numFeatures(),
+ {1,1,1,1,1,1,1,1,
+ 1,1,1,1,1,1,1,255,
+ 1,1,1,1,1,1,1,1,
+ 1,1,1,1,1,1,0,0,
+ 0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0, silf.numUser()}
+ };
+
+ decoder dec(lims, *this, pt);
+ if(!dec.load(bytecode_begin, bytecode_end))
+ return;
+
+ // Is this an empty program?
+ if (_instr_count == 0)
+ {
+ release_buffers();
+ ::new (this) Code();
+ return;
+ }
+
+ // When we reach the end check we've terminated it correctly
+ if (!is_return(_code[_instr_count-1])) {
+ failure(missing_return);
+ return;
+ }
+
+ assert((_constraint && immutable()) || !_constraint);
+ dec.apply_analysis(_code, _code + _instr_count);
+ _max_ref = dec.max_ref();
+
+ // Now we know exactly how much code and data the program really needs
+ // realloc the buffers to exactly the right size so we don't waste any
+ // memory.
+ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_instr_count));
+ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_data_size));
+ memmove(_code + (_instr_count+1), _data, _data_size*sizeof(byte));
+ size_t const total_sz = ((_instr_count+1) + (_data_size + sizeof(instr)-1)/sizeof(instr))*sizeof(instr);
+ if (_out)
+ *_out += total_sz;
+ else
+ _code = static_cast<instr *>(realloc(_code, total_sz));
+ _data = reinterpret_cast<byte *>(_code + (_instr_count+1));
+
+ if (!_code)
+ {
+ failure(alloc_failed);
+ return;
+ }
+
+ // Make this RET_ZERO, we should never reach this but just in case ...
+ _code[_instr_count] = op_to_fn[RET_ZERO].impl[_constraint];
+
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::count_bytes(_data_size + (_instr_count+1)*sizeof(instr));
+#endif
+}
+
+Machine::Code::~Code() throw ()
+{
+ if (_own)
+ release_buffers();
+}
+
+
+bool Machine::Code::decoder::load(const byte * bc, const byte * bc_end)
+{
+ _max.bytecode = bc_end;
+ while (bc < bc_end)
+ {
+ const opcode opc = fetch_opcode(bc++);
+ if (opc == vm::MAX_OPCODE)
+ return false;
+
+ analyse_opcode(opc, reinterpret_cast<const int8 *>(bc));
+
+ if (!emit_opcode(opc, bc))
+ return false;
+ }
+
+ return bool(_code);
+}
+
+// Validation check and fixups.
+//
+
+opcode Machine::Code::decoder::fetch_opcode(const byte * bc)
+{
+ const byte opc = *bc++;
+
+ // Do some basic sanity checks based on what we know about the opcode
+ if (!validate_opcode(opc, bc)) return MAX_OPCODE;
+
+ // And check it's arguments as far as possible
+ switch (opcode(opc))
+ {
+ case NOP :
+ break;
+ case PUSH_BYTE :
+ case PUSH_BYTEU :
+ case PUSH_SHORT :
+ case PUSH_SHORTU :
+ case PUSH_LONG :
+ ++_stack_depth;
+ break;
+ case ADD :
+ case SUB :
+ case MUL :
+ case DIV :
+ case MIN_ :
+ case MAX_ :
+ case AND :
+ case OR :
+ case EQUAL :
+ case NOT_EQ :
+ case LESS :
+ case GTR :
+ case LESS_EQ :
+ case GTR_EQ :
+ case BITOR :
+ case BITAND :
+ if (--_stack_depth <= 0)
+ failure(underfull_stack);
+ break;
+ case NEG :
+ case TRUNC8 :
+ case TRUNC16 :
+ case NOT :
+ case BITNOT :
+ case BITSET :
+ if (_stack_depth <= 0)
+ failure(underfull_stack);
+ break;
+ case COND :
+ _stack_depth -= 2;
+ if (_stack_depth <= 0)
+ failure(underfull_stack);
+ break;
+ case NEXT :
+ case NEXT_N : // runtime checked
+ case COPY_NEXT :
+ ++_out_index;
+ if (_out_index < -1 || _out_index > _out_length || _slotref > _max.rule_length)
+ failure(out_of_range_data);
+ break;
+ case PUT_GLYPH_8BIT_OBS :
+ valid_upto(_max.classes, bc[0]);
+ test_context();
+ break;
+ case PUT_SUBS_8BIT_OBS :
+ test_ref(int8(bc[0]));
+ valid_upto(_max.classes, bc[1]);
+ valid_upto(_max.classes, bc[2]);
+ test_context();
+ break;
+ case PUT_COPY :
+ test_ref(int8(bc[0]));
+ test_context();
+ break;
+ case INSERT :
+ if (_passtype >= PASS_TYPE_POSITIONING)
+ failure(invalid_opcode);
+ ++_out_length;
+ if (_out_index < 0) ++_out_index;
+ if (_out_index < -1 || _out_index >= _out_length)
+ failure(out_of_range_data);
+ break;
+ case DELETE :
+ if (_passtype >= PASS_TYPE_POSITIONING)
+ failure(invalid_opcode);
+ if (_out_index < _max.pre_context)
+ failure(out_of_range_data);
+ --_out_index;
+ --_out_length;
+ if (_out_index < -1 || _out_index > _out_length)
+ failure(out_of_range_data);
+ break;
+ case ASSOC :
+ if (bc[0] == 0)
+ failure(out_of_range_data);
+ for (uint8 num = bc[0]; num; --num)
+ test_ref(int8(bc[num]));
+ test_context();
+ break;
+ case CNTXT_ITEM :
+ valid_upto(_max.rule_length, _max.pre_context + int8(bc[0]));
+ if (bc + 2 + bc[1] >= _max.bytecode) failure(jump_past_end);
+ if (_in_ctxt_item) failure(nested_context_item);
+ break;
+ case ATTR_SET :
+ case ATTR_ADD :
+ case ATTR_SUB :
+ case ATTR_SET_SLOT :
+ if (--_stack_depth < 0)
+ failure(underfull_stack);
+ valid_upto(gr_slatMax, bc[0]);
+ if (attrCode(bc[0]) == gr_slatUserDefn) // use IATTR for user attributes
+ failure(out_of_range_data);
+ test_context();
+ break;
+ case IATTR_SET_SLOT :
+ if (--_stack_depth < 0)
+ failure(underfull_stack);
+ if (valid_upto(gr_slatMax, bc[0]))
+ valid_upto(_max.attrid[bc[0]], bc[1]);
+ test_context();
+ break;
+ case PUSH_SLOT_ATTR :
+ ++_stack_depth;
+ valid_upto(gr_slatMax, bc[0]);
+ test_ref(int8(bc[1]));
+ if (attrCode(bc[0]) == gr_slatUserDefn) // use IATTR for user attributes
+ failure(out_of_range_data);
+ break;
+ case PUSH_GLYPH_ATTR_OBS :
+ case PUSH_ATT_TO_GATTR_OBS :
+ ++_stack_depth;
+ valid_upto(_max.glyf_attrs, bc[0]);
+ test_ref(int8(bc[1]));
+ break;
+ case PUSH_ATT_TO_GLYPH_METRIC :
+ case PUSH_GLYPH_METRIC :
+ ++_stack_depth;
+ valid_upto(kgmetDescent, bc[0]);
+ test_ref(int8(bc[1]));
+ // level: dp[2] no check necessary
+ break;
+ case PUSH_FEAT :
+ ++_stack_depth;
+ valid_upto(_max.features, bc[0]);
+ test_ref(int8(bc[1]));
+ break;
+ case PUSH_ISLOT_ATTR :
+ ++_stack_depth;
+ if (valid_upto(gr_slatMax, bc[0]))
+ {
+ test_ref(int8(bc[1]));
+ valid_upto(_max.attrid[bc[0]], bc[2]);
+ }
+ break;
+ case PUSH_IGLYPH_ATTR :// not implemented
+ ++_stack_depth;
+ break;
+ case POP_RET :
+ if (--_stack_depth < 0)
+ failure(underfull_stack);
+ GR_FALLTHROUGH;
+ // no break
+ case RET_ZERO :
+ case RET_TRUE :
+ break;
+ case IATTR_SET :
+ case IATTR_ADD :
+ case IATTR_SUB :
+ if (--_stack_depth < 0)
+ failure(underfull_stack);
+ if (valid_upto(gr_slatMax, bc[0]))
+ valid_upto(_max.attrid[bc[0]], bc[1]);
+ test_context();
+ break;
+ case PUSH_PROC_STATE : // dummy: dp[0] no check necessary
+ case PUSH_VERSION :
+ ++_stack_depth;
+ break;
+ case PUT_SUBS :
+ test_ref(int8(bc[0]));
+ valid_upto(_max.classes, uint16(bc[1]<< 8) | bc[2]);
+ valid_upto(_max.classes, uint16(bc[3]<< 8) | bc[4]);
+ test_context();
+ break;
+ case PUT_SUBS2 : // not implemented
+ case PUT_SUBS3 : // not implemented
+ break;
+ case PUT_GLYPH :
+ valid_upto(_max.classes, uint16(bc[0]<< 8) | bc[1]);
+ test_context();
+ break;
+ case PUSH_GLYPH_ATTR :
+ case PUSH_ATT_TO_GLYPH_ATTR :
+ ++_stack_depth;
+ valid_upto(_max.glyf_attrs, uint16(bc[0]<< 8) | bc[1]);
+ test_ref(int8(bc[2]));
+ break;
+ case SET_FEAT :
+ valid_upto(_max.features, bc[0]);
+ test_ref(int8(bc[1]));
+ break;
+ default:
+ failure(invalid_opcode);
+ break;
+ }
+
+ return bool(_code) ? opcode(opc) : MAX_OPCODE;
+}
+
+
+void Machine::Code::decoder::analyse_opcode(const opcode opc, const int8 * arg) throw()
+{
+ switch (opc)
+ {
+ case DELETE :
+ _code._delete = true;
+ break;
+ case ASSOC :
+ set_changed(0);
+// for (uint8 num = arg[0]; num; --num)
+// _analysis.set_noref(num);
+ break;
+ case PUT_GLYPH_8BIT_OBS :
+ case PUT_GLYPH :
+ _code._modify = true;
+ set_changed(0);
+ break;
+ case ATTR_SET :
+ case ATTR_ADD :
+ case ATTR_SUB :
+ case ATTR_SET_SLOT :
+ case IATTR_SET_SLOT :
+ case IATTR_SET :
+ case IATTR_ADD :
+ case IATTR_SUB :
+ set_noref(0);
+ break;
+ case NEXT :
+ case COPY_NEXT :
+ ++_slotref;
+ _contexts[_slotref] = context(_code._instr_count+1);
+ // if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref;
+ break;
+ case INSERT :
+ if (_slotref >= 0) --_slotref;
+ _code._modify = true;
+ break;
+ case PUT_SUBS_8BIT_OBS : // slotref on 1st parameter
+ case PUT_SUBS :
+ _code._modify = true;
+ set_changed(0);
+ GR_FALLTHROUGH;
+ // no break
+ case PUT_COPY :
+ if (arg[0] != 0) { set_changed(0); _code._modify = true; }
+ set_ref(arg[0]);
+ break;
+ case PUSH_GLYPH_ATTR_OBS :
+ case PUSH_SLOT_ATTR :
+ case PUSH_GLYPH_METRIC :
+ case PUSH_ATT_TO_GATTR_OBS :
+ case PUSH_ATT_TO_GLYPH_METRIC :
+ case PUSH_ISLOT_ATTR :
+ case PUSH_FEAT :
+ case SET_FEAT :
+ set_ref(arg[1]);
+ break;
+ case PUSH_ATT_TO_GLYPH_ATTR :
+ case PUSH_GLYPH_ATTR :
+ set_ref(arg[2]);
+ break;
+ default:
+ break;
+ }
+}
+
+
+bool Machine::Code::decoder::emit_opcode(opcode opc, const byte * & bc)
+{
+ const opcode_t * op_to_fn = Machine::getOpcodeTable();
+ const opcode_t & op = op_to_fn[opc];
+ if (op.impl[_code._constraint] == 0)
+ {
+ failure(unimplemented_opcode_used);
+ return false;
+ }
+
+ const size_t param_sz = op.param_sz == VARARGS ? bc[0] + 1 : op.param_sz;
+
+ // Add this instruction
+ *_instr++ = op.impl[_code._constraint];
+ ++_code._instr_count;
+
+ // Grab the parameters
+ if (param_sz) {
+ memcpy(_data, bc, param_sz * sizeof(byte));
+ bc += param_sz;
+ _data += param_sz;
+ _code._data_size += param_sz;
+ }
+
+ // recursively decode a context item so we can split the skip into
+ // instruction and data portions.
+ if (opc == CNTXT_ITEM)
+ {
+ assert(_out_index == 0);
+ _in_ctxt_item = true;
+ _out_index = _max.pre_context + int8(_data[-2]);
+ _slotref = int8(_data[-2]);
+ _out_length = _max.rule_length;
+
+ const size_t ctxt_start = _code._instr_count;
+ byte & instr_skip = _data[-1];
+ byte & data_skip = *_data++;
+ ++_code._data_size;
+ const byte *curr_end = _max.bytecode;
+
+ if (load(bc, bc + instr_skip))
+ {
+ bc += instr_skip;
+ data_skip = instr_skip - (_code._instr_count - ctxt_start);
+ instr_skip = _code._instr_count - ctxt_start;
+ _max.bytecode = curr_end;
+
+ _out_length = 1;
+ _out_index = 0;
+ _slotref = 0;
+ _in_ctxt_item = false;
+ }
+ else
+ {
+ _out_index = 0;
+ _slotref = 0;
+ return false;
+ }
+ }
+
+ return bool(_code);
+}
+
+
+void Machine::Code::decoder::apply_analysis(instr * const code, instr * code_end)
+{
+ // insert TEMP_COPY commands for slots that need them (that change and are referenced later)
+ int tempcount = 0;
+ if (_code._constraint) return;
+
+ const instr temp_copy = Machine::getOpcodeTable()[TEMP_COPY].impl[0];
+ for (const context * c = _contexts, * const ce = c + _slotref; c < ce; ++c)
+ {
+ if (!c->flags.referenced || !c->flags.changed) continue;
+
+ instr * const tip = code + c->codeRef + tempcount;
+ memmove(tip+1, tip, (code_end - tip) * sizeof(instr));
+ *tip = temp_copy;
+ ++code_end;
+ ++tempcount;
+ _code._delete = true;
+ }
+
+ _code._instr_count = code_end - code;
+}
+
+
+inline
+bool Machine::Code::decoder::validate_opcode(const byte opc, const byte * const bc)
+{
+ if (opc >= MAX_OPCODE)
+ {
+ failure(invalid_opcode);
+ return false;
+ }
+ const opcode_t & op = Machine::getOpcodeTable()[opc];
+ if (op.impl[_code._constraint] == 0)
+ {
+ failure(unimplemented_opcode_used);
+ return false;
+ }
+ if (op.param_sz == VARARGS && bc >= _max.bytecode)
+ {
+ failure(arguments_exhausted);
+ return false;
+ }
+ const size_t param_sz = op.param_sz == VARARGS ? bc[0] + 1 : op.param_sz;
+ if (bc - 1 + param_sz >= _max.bytecode)
+ {
+ failure(arguments_exhausted);
+ return false;
+ }
+ return true;
+}
+
+
+bool Machine::Code::decoder::valid_upto(const uint16 limit, const uint16 x) const throw()
+{
+ const bool t = (limit != 0) && (x < limit);
+ if (!t) failure(out_of_range_data);
+ return t;
+}
+
+inline
+bool Machine::Code::decoder::test_ref(int8 index) const throw()
+{
+ if (_code._constraint && !_in_ctxt_item)
+ {
+ if (index > 0 || -index > _max.pre_context)
+ {
+ failure(out_of_range_data);
+ return false;
+ }
+ }
+ else
+ return valid_upto(_max.rule_length, _slotref + _max.pre_context + index);
+ return true;
+}
+
+bool Machine::Code::decoder::test_context() const throw()
+{
+ if (_out_index >= _out_length || _out_index < 0 || _slotref >= NUMCONTEXTS - 1)
+ {
+ failure(out_of_range_data);
+ return false;
+ }
+ return true;
+}
+
+inline
+void Machine::Code::failure(const status_t s) throw() {
+ release_buffers();
+ _status = s;
+}
+
+
+inline
+void Machine::Code::decoder::set_ref(int index) throw() {
+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
+ _contexts[index + _slotref].flags.referenced = true;
+ if (index + _slotref > _max_ref) _max_ref = index + _slotref;
+}
+
+
+inline
+void Machine::Code::decoder::set_noref(int index) throw() {
+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
+ if (index + _slotref > _max_ref) _max_ref = index + _slotref;
+}
+
+
+inline
+void Machine::Code::decoder::set_changed(int index) throw() {
+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
+ _contexts[index + _slotref].flags.changed= true;
+ if (index + _slotref > _max_ref) _max_ref = index + _slotref;
+}
+
+
+void Machine::Code::release_buffers() throw()
+{
+ if (_own)
+ free(_code);
+ _code = 0;
+ _data = 0;
+ _own = false;
+}
+
+
+int32 Machine::Code::run(Machine & m, slotref * & map) const
+{
+// assert(_own);
+ assert(*this); // Check we are actually runnable
+
+ if (m.slotMap().size() <= size_t(_max_ref + m.slotMap().context())
+ || m.slotMap()[_max_ref + m.slotMap().context()] == 0)
+ {
+ m._status = Machine::slot_offset_out_bounds;
+ return 1;
+// return m.run(_code, _data, map);
+ }
+
+ return m.run(_code, _data, map);
+}
+
diff --git a/gfx/graphite2/src/Collider.cpp b/gfx/graphite2/src/Collider.cpp
new file mode 100644
index 000000000..035bb9a31
--- /dev/null
+++ b/gfx/graphite2/src/Collider.cpp
@@ -0,0 +1,1100 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <algorithm>
+#include <limits>
+#include <cmath>
+#include <string>
+#include <functional>
+#include "inc/Collider.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/GlyphCache.h"
+#include "inc/Sparse.h"
+
+#define ISQRT2 0.707106781f
+
+// Possible rounding error for subbox boundaries: 0.016 = 1/64 = 1/256 * 4
+// (values in font range from 0..256)
+// #define SUBBOX_RND_ERR 0.016
+
+using namespace graphite2;
+
+//// SHIFT-COLLIDER ////
+
+// Initialize the Collider to hold the basic movement limits for the
+// target slot, the one we are focusing on fixing.
+bool ShiftCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin, float marginWeight,
+ const Position &currShift, const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout)
+{
+ int i;
+ float mx, mn;
+ float a, shift;
+ const GlyphCache &gc = seg->getFace()->glyphs();
+ unsigned short gid = aSlot->gid();
+ if (!gc.check(gid))
+ return false;
+ const BBox &bb = gc.getBoundingBBox(gid);
+ const SlantBox &sb = gc.getBoundingSlantBox(gid);
+ //float sx = aSlot->origin().x + currShift.x;
+ //float sy = aSlot->origin().y + currShift.y;
+ if (currOffset.x != 0.f || currOffset.y != 0.f)
+ _limit = Rect(limit.bl - currOffset, limit.tr - currOffset);
+ else
+ _limit = limit;
+ // For a ShiftCollider, these indices indicate which vector we are moving by:
+ // each _ranges represents absolute space with respect to the origin of the slot. Thus take into account true origins but subtract the vmin for the slot
+ for (i = 0; i < 4; ++i)
+ {
+ switch (i) {
+ case 0 : // x direction
+ mn = _limit.bl.x + currOffset.x;
+ mx = _limit.tr.x + currOffset.x;
+ _len[i] = bb.xa - bb.xi;
+ a = currOffset.y + currShift.y;
+ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a);
+ break;
+ case 1 : // y direction
+ mn = _limit.bl.y + currOffset.y;
+ mx = _limit.tr.y + currOffset.y;
+ _len[i] = bb.ya - bb.yi;
+ a = currOffset.x + currShift.x;
+ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a);
+ break;
+ case 2 : // sum (negatively sloped diagonal boundaries)
+ // pick closest x,y limit boundaries in s direction
+ shift = currOffset.x + currOffset.y + currShift.x + currShift.y;
+ mn = -2 * min(currShift.x - _limit.bl.x, currShift.y - _limit.bl.y) + shift;
+ mx = 2 * min(_limit.tr.x - currShift.x, _limit.tr.y - currShift.y) + shift;
+ _len[i] = sb.sa - sb.si;
+ a = currOffset.x - currOffset.y + currShift.x - currShift.y;
+ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a);
+ break;
+ case 3 : // diff (positively sloped diagonal boundaries)
+ // pick closest x,y limit boundaries in d direction
+ shift = currOffset.x - currOffset.y + currShift.x - currShift.y;
+ mn = -2 * min(currShift.x - _limit.bl.x, _limit.tr.y - currShift.y) + shift;
+ mx = 2 * min(_limit.tr.x - currShift.x, currShift.y - _limit.bl.y) + shift;
+ _len[i] = sb.da - sb.di;
+ a = currOffset.x + currOffset.y + currShift.x + currShift.y;
+ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a);
+ break;
+ }
+ }
+
+ _target = aSlot;
+ if ((dir & 1) == 0)
+ {
+ // For LTR, switch and negate x limits.
+ _limit.bl.x = -1 * limit.tr.x;
+ //_limit.tr.x = -1 * limit.bl.x;
+ }
+ _currOffset = currOffset;
+ _currShift = currShift;
+ _origin = aSlot->origin() - currOffset; // the original anchor position of the glyph
+
+ _margin = margin;
+ _marginWt = marginWeight;
+
+ SlotCollision *c = seg->collisionInfo(aSlot);
+ _seqClass = c->seqClass();
+ _seqProxClass = c->seqProxClass();
+ _seqOrder = c->seqOrder();
+ return true;
+}
+
+template <class O>
+float sdm(float vi, float va, float mx, float my, O op)
+{
+ float res = 2 * mx - vi;
+ if (op(res, vi + 2 * my))
+ {
+ res = va + 2 * my;
+ if (op(res, 2 * mx - va))
+ res = mx + my;
+ }
+ return res;
+}
+
+// Mark an area with a cost that can vary along the x or y axis. The region is expressed in terms of the centre of the target glyph in each axis
+void ShiftCollider::addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int axis)
+{
+ float a, c;
+ switch (axis) {
+ case 0 :
+ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0)
+ {
+ a = org.y + 0.5f * (bb.yi + bb.ya);
+ c = 0.5f * (bb.xi + bb.xa);
+ if (isx)
+ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, m,
+ (minright ? box.tr.x : box.bl.x) - c, a, 0, false);
+ else
+ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, 0, 0, org.y,
+ m * (a * a + sqr((minright ? box.tr.y : box.bl.y) - 0.5f * (bb.yi + bb.ya))), false);
+ }
+ break;
+ case 1 :
+ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0)
+ {
+ a = org.x + 0.5f * (bb.xi + bb.xa);
+ c = 0.5f * (bb.yi + bb.ya);
+ if (isx)
+ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, 0, 0, org.x,
+ m * (a * a + sqr((minright ? box.tr.x : box.bl.x) - 0.5f * (bb.xi + bb.xa))), false);
+ else
+ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, m,
+ (minright ? box.tr.y : box.bl.y) - c, a, 0, false);
+ }
+ break;
+ case 2 :
+ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di)
+ {
+ float d = org.x - org.y + 0.5f * (sb.di + sb.da);
+ c = 0.5f * (sb.si + sb.sa);
+ float smax = min(2 * box.tr.x - d, 2 * box.tr.y + d);
+ float smin = max(2 * box.bl.x - d, 2 * box.bl.y + d);
+ if (smin > smax) return;
+ float si;
+ a = d;
+ if (isx)
+ si = 2 * (minright ? box.tr.x : box.bl.x) - a;
+ else
+ si = 2 * (minright ? box.tr.y : box.bl.y) + a;
+ _ranges[axis].weighted<SD>(smin - c, smax - c, weight / 2, a, m / 2, si, 0, 0, isx);
+ }
+ break;
+ case 3 :
+ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si)
+ {
+ float s = org.x + org.y + 0.5f * (sb.si + sb.sa);
+ c = 0.5f * (sb.di + sb.da);
+ float dmax = min(2 * box.tr.x - s, s - 2 * box.bl.y);
+ float dmin = max(2 * box.bl.x - s, s - 2 * box.tr.y);
+ if (dmin > dmax) return;
+ float di;
+ a = s;
+ if (isx)
+ di = 2 * (minright ? box.tr.x : box.bl.x) - a;
+ else
+ di = 2 * (minright ? box.tr.y : box.bl.y) + a;
+ _ranges[axis].weighted<SD>(dmin - c, dmax - c, weight / 2, a, m / 2, di, 0, 0, !isx);
+ }
+ break;
+ default :
+ break;
+ }
+ return;
+}
+
+// Mark an area with an absolute cost, making it completely inaccessible.
+inline void ShiftCollider::removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int axis)
+{
+ float c;
+ switch (axis) {
+ case 0 :
+ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0)
+ {
+ c = 0.5f * (bb.xi + bb.xa);
+ _ranges[axis].exclude(box.bl.x - c, box.tr.x - c);
+ }
+ break;
+ case 1 :
+ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0)
+ {
+ c = 0.5f * (bb.yi + bb.ya);
+ _ranges[axis].exclude(box.bl.y - c, box.tr.y - c);
+ }
+ break;
+ case 2 :
+ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di
+ && box.width() > 0 && box.height() > 0)
+ {
+ float di = org.x - org.y + sb.di;
+ float da = org.x - org.y + sb.da;
+ float smax = sdm(di, da, box.tr.x, box.tr.y, std::greater<float>());
+ float smin = sdm(da, di, box.bl.x, box.bl.y, std::less<float>());
+ c = 0.5f * (sb.si + sb.sa);
+ _ranges[axis].exclude(smin - c, smax - c);
+ }
+ break;
+ case 3 :
+ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si
+ && box.width() > 0 && box.height() > 0)
+ {
+ float si = org.x + org.y + sb.si;
+ float sa = org.x + org.y + sb.sa;
+ float dmax = sdm(si, sa, box.tr.x, -box.bl.y, std::greater<float>());
+ float dmin = sdm(sa, si, box.bl.x, -box.tr.y, std::less<float>());
+ c = 0.5f * (sb.di + sb.da);
+ _ranges[axis].exclude(dmin - c, dmax - c);
+ }
+ break;
+ default :
+ break;
+ }
+ return;
+}
+
+// Adjust the movement limits for the target to avoid having it collide
+// with the given neighbor slot. Also determine if there is in fact a collision
+// between the target and the given slot.
+bool ShiftCollider::mergeSlot(Segment *seg, Slot *slot, const SlotCollision *cslot, const Position &currShift,
+ bool isAfter, // slot is logically after _target
+ bool sameCluster, bool &hasCol, bool isExclusion,
+ GR_MAYBE_UNUSED json * const dbgout )
+{
+ bool isCol = false;
+ const float sx = slot->origin().x - _origin.x + currShift.x;
+ const float sy = slot->origin().y - _origin.y + currShift.y;
+ const float sd = sx - sy;
+ const float ss = sx + sy;
+ float vmin, vmax;
+ float omin, omax, otmin, otmax;
+ float cmin, cmax; // target limits
+ float torg;
+ const GlyphCache &gc = seg->getFace()->glyphs();
+ const unsigned short gid = slot->gid();
+ if (!gc.check(gid))
+ return false;
+ const BBox &bb = gc.getBoundingBBox(gid);
+
+ // SlotCollision * cslot = seg->collisionInfo(slot);
+ int orderFlags = 0;
+ bool sameClass = _seqProxClass == 0 && cslot->seqClass() == _seqClass;
+ if (sameCluster && _seqClass
+ && (sameClass || (_seqProxClass != 0 && cslot->seqClass() == _seqProxClass)))
+ // Force the target glyph to be in the specified direction from the slot we're testing.
+ orderFlags = _seqOrder;
+
+ // short circuit if only interested in direct collision and we are out of range
+ if (orderFlags || (sx + bb.xa + _margin >= _limit.bl.x && sx + bb.xi - _margin <= _limit.tr.x)
+ || (sy + bb.ya + _margin >= _limit.bl.y && sy + bb.yi - _margin <= _limit.tr.y))
+
+ {
+ const float tx = _currOffset.x + _currShift.x;
+ const float ty = _currOffset.y + _currShift.y;
+ const float td = tx - ty;
+ const float ts = tx + ty;
+ const SlantBox &sb = gc.getBoundingSlantBox(gid);
+ const unsigned short tgid = _target->gid();
+ const BBox &tbb = gc.getBoundingBBox(tgid);
+ const SlantBox &tsb = gc.getBoundingSlantBox(tgid);
+ float seq_above_wt = cslot->seqAboveWt();
+ float seq_below_wt = cslot->seqBelowWt();
+ float seq_valign_wt = cslot->seqValignWt();
+ float lmargin = _margin;
+ // if isAfter, invert orderFlags for diagonal orders.
+ if (isAfter)
+ {
+ // invert appropriate bits
+ orderFlags ^= (sameClass ? 0x3F : 0x3);
+ // consider 2 bits at a time, non overlapping. If both bits set, clear them
+ orderFlags = orderFlags ^ ((((orderFlags >> 1) & orderFlags) & 0x15) * 3);
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ dbgout->setenv(0, slot);
+#endif
+
+ // Process main bounding octabox.
+ for (int i = 0; i < 4; ++i)
+ {
+ switch (i) {
+ case 0 : // x direction
+ vmin = max(max(bb.xi - tbb.xa + sx, sb.di - tsb.da + ty + sd), sb.si - tsb.sa - ty + ss);
+ vmax = min(min(bb.xa - tbb.xi + sx, sb.da - tsb.di + ty + sd), sb.sa - tsb.si - ty + ss);
+ otmin = tbb.yi + ty;
+ otmax = tbb.ya + ty;
+ omin = bb.yi + sy;
+ omax = bb.ya + sy;
+ torg = _currOffset.x;
+ cmin = _limit.bl.x + torg;
+ cmax = _limit.tr.x - tbb.xi + tbb.xa + torg;
+ lmargin = _margin;
+ break;
+ case 1 : // y direction
+ vmin = max(max(bb.yi - tbb.ya + sy, tsb.di - sb.da + tx - sd), sb.si - tsb.sa - tx + ss);
+ vmax = min(min(bb.ya - tbb.yi + sy, tsb.da - sb.di + tx - sd), sb.sa - tsb.si - tx + ss);
+ otmin = tbb.xi + tx;
+ otmax = tbb.xa + tx;
+ omin = bb.xi + sx;
+ omax = bb.xa + sx;
+ torg = _currOffset.y;
+ cmin = _limit.bl.y + torg;
+ cmax = _limit.tr.y - tbb.yi + tbb.ya + torg;
+ lmargin = _margin;
+ break;
+ case 2 : // sum - moving along the positively-sloped vector, so the boundaries are the
+ // negatively-sloped boundaries.
+ vmin = max(max(sb.si - tsb.sa + ss, 2 * (bb.yi - tbb.ya + sy) + td), 2 * (bb.xi - tbb.xa + sx) - td);
+ vmax = min(min(sb.sa - tsb.si + ss, 2 * (bb.ya - tbb.yi + sy) + td), 2 * (bb.xa - tbb.xi + sx) - td);
+ otmin = tsb.di + td;
+ otmax = tsb.da + td;
+ omin = sb.di + sd;
+ omax = sb.da + sd;
+ torg = _currOffset.x + _currOffset.y;
+ cmin = _limit.bl.x + _limit.bl.y + torg;
+ cmax = _limit.tr.x + _limit.tr.y - tsb.si + tsb.sa + torg;
+ lmargin = _margin / ISQRT2;
+ break;
+ case 3 : // diff - moving along the negatively-sloped vector, so the boundaries are the
+ // positively-sloped boundaries.
+ vmin = max(max(sb.di - tsb.da + sd, 2 * (bb.xi - tbb.xa + sx) - ts), -2 * (bb.ya - tbb.yi + sy) + ts);
+ vmax = min(min(sb.da - tsb.di + sd, 2 * (bb.xa - tbb.xi + sx) - ts), -2 * (bb.yi - tbb.ya + sy) + ts);
+ otmin = tsb.si + ts;
+ otmax = tsb.sa + ts;
+ omin = sb.si + ss;
+ omax = sb.sa + ss;
+ torg = _currOffset.x - _currOffset.y;
+ cmin = _limit.bl.x - _limit.tr.y + torg;
+ cmax = _limit.tr.x - _limit.bl.y - tsb.di + tsb.da + torg;
+ lmargin = _margin / ISQRT2;
+ break;
+ default :
+ continue;
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ dbgout->setenv(1, reinterpret_cast<void *>(-1));
+#define DBGTAG(x) if (dbgout) dbgout->setenv(1, reinterpret_cast<void *>(-x));
+#else
+#define DBGTAG(x)
+#endif
+
+ if (orderFlags)
+ {
+ Position org(tx, ty);
+ float xminf = _limit.bl.x + _currOffset.x + tbb.xi;
+ float xpinf = _limit.tr.x + _currOffset.x + tbb.xa;
+ float ypinf = _limit.tr.y + _currOffset.y + tbb.ya;
+ float yminf = _limit.bl.y + _currOffset.y + tbb.yi;
+ switch (orderFlags) {
+ case SlotCollision::SEQ_ORDER_RIGHTUP :
+ {
+ float r1Xedge = cslot->seqAboveXoff() + 0.5f * (bb.xi + bb.xa) + sx;
+ float r3Xedge = cslot->seqBelowXlim() + bb.xa + sx + 0.5f * (tbb.xa - tbb.xi);
+ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy;
+
+ // DBGTAG(1x) means the regions are up and right
+ // region 1
+ DBGTAG(11)
+ addBox_slope(true, Rect(Position(xminf, r2Yedge), Position(r1Xedge, ypinf)),
+ tbb, tsb, org, 0, seq_above_wt, true, i);
+ // region 2
+ DBGTAG(12)
+ removeBox(Rect(Position(xminf, yminf), Position(r3Xedge, r2Yedge)), tbb, tsb, org, i);
+ // region 3, which end is zero is irrelevant since m weight is 0
+ DBGTAG(13)
+ addBox_slope(true, Rect(Position(r3Xedge, yminf), Position(xpinf, r2Yedge - cslot->seqValignHt())),
+ tbb, tsb, org, seq_below_wt, 0, true, i);
+ // region 4
+ DBGTAG(14)
+ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge), Position(xpinf, r2Yedge + cslot->seqValignHt())),
+ tbb, tsb, org, 0, seq_valign_wt, true, i);
+ // region 5
+ DBGTAG(15)
+ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge - cslot->seqValignHt()), Position(xpinf, r2Yedge)),
+ tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i);
+ break;
+ }
+ case SlotCollision::SEQ_ORDER_LEFTDOWN :
+ {
+ float r1Xedge = 0.5f * (bb.xi + bb.xa) + cslot->seqAboveXoff() + sx;
+ float r3Xedge = bb.xi - cslot->seqBelowXlim() + sx - 0.5f * (tbb.xa - tbb.xi);
+ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy;
+ // DBGTAG(2x) means the regions are up and right
+ // region 1
+ DBGTAG(21)
+ addBox_slope(true, Rect(Position(r1Xedge, yminf), Position(xpinf, r2Yedge)),
+ tbb, tsb, org, 0, seq_above_wt, false, i);
+ // region 2
+ DBGTAG(22)
+ removeBox(Rect(Position(r3Xedge, r2Yedge), Position(xpinf, ypinf)), tbb, tsb, org, i);
+ // region 3
+ DBGTAG(23)
+ addBox_slope(true, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()), Position(r3Xedge, ypinf)),
+ tbb, tsb, org, seq_below_wt, 0, false, i);
+ // region 4
+ DBGTAG(24)
+ addBox_slope(false, Rect(Position(xminf, r2Yedge), Position(sx + bb.xa, r2Yedge + cslot->seqValignHt())),
+ tbb, tsb, org, 0, seq_valign_wt, true, i);
+ // region 5
+ DBGTAG(25)
+ addBox_slope(false, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()),
+ Position(sx + bb.xa, r2Yedge)), tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i);
+ break;
+ }
+ case SlotCollision::SEQ_ORDER_NOABOVE : // enforce neighboring glyph being above
+ DBGTAG(31);
+ removeBox(Rect(Position(bb.xi - tbb.xa + sx, sy + bb.ya),
+ Position(bb.xa - tbb.xi + sx, ypinf)), tbb, tsb, org, i);
+ break;
+ case SlotCollision::SEQ_ORDER_NOBELOW : // enforce neighboring glyph being below
+ DBGTAG(32);
+ removeBox(Rect(Position(bb.xi - tbb.xa + sx, yminf),
+ Position(bb.xa - tbb.xi + sx, sy + bb.yi)), tbb, tsb, org, i);
+ break;
+ case SlotCollision::SEQ_ORDER_NOLEFT : // enforce neighboring glyph being to the left
+ DBGTAG(33)
+ removeBox(Rect(Position(xminf, bb.yi - tbb.ya + sy),
+ Position(bb.xi - tbb.xa + sx, bb.ya - tbb.yi + sy)), tbb, tsb, org, i);
+ break;
+ case SlotCollision::SEQ_ORDER_NORIGHT : // enforce neighboring glyph being to the right
+ DBGTAG(34)
+ removeBox(Rect(Position(bb.xa - tbb.xi + sx, bb.yi - tbb.ya + sy),
+ Position(xpinf, bb.ya - tbb.yi + sy)), tbb, tsb, org, i);
+ break;
+ default :
+ break;
+ }
+ }
+
+ if (vmax < cmin - lmargin || vmin > cmax + lmargin || omax < otmin - lmargin || omin > otmax + lmargin)
+ continue;
+
+ // Process sub-boxes that are defined for this glyph.
+ // We only need to do this if there was in fact a collision with the main octabox.
+ uint8 numsub = gc.numSubBounds(gid);
+ if (numsub > 0)
+ {
+ bool anyhits = false;
+ for (int j = 0; j < numsub; ++j)
+ {
+ const BBox &sbb = gc.getSubBoundingBBox(gid, j);
+ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, j);
+ switch (i) {
+ case 0 : // x
+ vmin = max(max(sbb.xi-tbb.xa+sx, ssb.di-tsb.da+sd+ty), ssb.si-tsb.sa+ss-ty);
+ vmax = min(min(sbb.xa-tbb.xi+sx, ssb.da-tsb.di+sd+ty), ssb.sa-tsb.si+ss-ty);
+ omin = sbb.yi + sy;
+ omax = sbb.ya + sy;
+ break;
+ case 1 : // y
+ vmin = max(max(sbb.yi-tbb.ya+sy, tsb.di-ssb.da-sd+tx), ssb.si-tsb.sa+ss-tx);
+ vmax = min(min(sbb.ya-tbb.yi+sy, tsb.da-ssb.di-sd+tx), ssb.sa-tsb.si+ss-tx);
+ omin = sbb.xi + sx;
+ omax = sbb.xa + sx;
+ break;
+ case 2 : // sum
+ vmin = max(max(ssb.si-tsb.sa+ss, 2*(sbb.yi-tbb.ya+sy)+td), 2*(sbb.xi-tbb.xa+sx)-td);
+ vmax = min(min(ssb.sa-tsb.si+ss, 2*(sbb.ya-tbb.yi+sy)+td), 2*(sbb.xa-tbb.xi+sx)-td);
+ omin = ssb.di + sd;
+ omax = ssb.da + sd;
+ break;
+ case 3 : // diff
+ vmin = max(max(ssb.di-tsb.da+sd, 2*(sbb.xi-tbb.xa+sx)-ts), -2*(sbb.ya-tbb.yi+sy)+ts);
+ vmax = min(min(ssb.da-tsb.di+sd, 2*(sbb.xa-tbb.xi+sx)-ts), -2*(sbb.yi-tbb.ya+sy)+ts);
+ omin = ssb.si + ss;
+ omax = ssb.sa + ss;
+ break;
+ }
+ if (vmax < cmin - lmargin || vmin > cmax + lmargin || omax < otmin - lmargin || omin > otmax + lmargin)
+ continue;
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ dbgout->setenv(1, reinterpret_cast<void *>(j));
+#endif
+ if (omin > otmax)
+ _ranges[i].weightedAxis(i, vmin - lmargin, vmax + lmargin, 0, 0, 0, 0, 0,
+ sqr(lmargin - omin + otmax) * _marginWt, false);
+ else if (omax < otmin)
+ _ranges[i].weightedAxis(i, vmin - lmargin, vmax + lmargin, 0, 0, 0, 0, 0,
+ sqr(lmargin - otmin + omax) * _marginWt, false);
+ else
+ _ranges[i].exclude_with_margins(vmin, vmax, i);
+ anyhits = true;
+ }
+ if (anyhits)
+ isCol = true;
+ }
+ else // no sub-boxes
+ {
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ dbgout->setenv(1, reinterpret_cast<void *>(-1));
+#endif
+ isCol = true;
+ if (omin > otmax)
+ _ranges[i].weightedAxis(i, vmin - lmargin, vmax + lmargin, 0, 0, 0, 0, 0,
+ sqr(lmargin - omin + otmax) * _marginWt, false);
+ else if (omax < otmin)
+ _ranges[i].weightedAxis(i, vmin - lmargin, vmax + lmargin, 0, 0, 0, 0, 0,
+ sqr(lmargin - otmin + omax) * _marginWt, false);
+ else
+ _ranges[i].exclude_with_margins(vmin, vmax, i);
+
+ }
+ }
+ }
+ bool res = true;
+ if (cslot->exclGlyph() > 0 && gc.check(cslot->exclGlyph()) && !isExclusion)
+ {
+ // Set up the bogus slot representing the exclusion glyph.
+ Slot *exclSlot = seg->newSlot();
+ exclSlot->setGlyph(seg, cslot->exclGlyph());
+ Position exclOrigin(slot->origin() + cslot->exclOffset());
+ exclSlot->origin(exclOrigin);
+ SlotCollision exclInfo(seg, exclSlot);
+ res &= mergeSlot(seg, exclSlot, &exclInfo, currShift, isAfter, sameCluster, isCol, true, dbgout );
+ seg->freeSlot(exclSlot);
+ }
+ hasCol |= isCol;
+ return res;
+
+} // end of ShiftCollider::mergeSlot
+
+
+// Figure out where to move the target glyph to, and return the amount to shift by.
+Position ShiftCollider::resolve(GR_MAYBE_UNUSED Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout)
+{
+ float tbase;
+ float totalCost = (float)(std::numeric_limits<float>::max() / 2);
+ Position resultPos = Position(0, 0);
+#if !defined GRAPHITE2_NTRACING
+ int bestAxis = -1;
+ if (dbgout)
+ {
+ outputJsonDbgStartSlot(dbgout, seg);
+ *dbgout << "vectors" << json::array;
+ }
+#endif
+ isCol = true;
+ for (int i = 0; i < 4; ++i)
+ {
+ float bestCost = -1;
+ float bestPos;
+ // Calculate the margin depending on whether we are moving diagonally or not:
+ switch (i) {
+ case 0 : // x direction
+ tbase = _currOffset.x;
+ break;
+ case 1 : // y direction
+ tbase = _currOffset.y;
+ break;
+ case 2 : // sum (negatively-sloped diagonals)
+ tbase = _currOffset.x + _currOffset.y;
+ break;
+ case 3 : // diff (positively-sloped diagonals)
+ tbase = _currOffset.x - _currOffset.y;
+ break;
+ }
+ Position testp;
+ bestPos = _ranges[i].closest(0, bestCost) - tbase; // Get the best relative position
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ outputJsonDbgOneVector(dbgout, seg, i, tbase, bestCost, bestPos) ;
+#endif
+ if (bestCost >= 0.0f)
+ {
+ isCol = false;
+ switch (i) {
+ case 0 : testp = Position(bestPos, _currShift.y); break;
+ case 1 : testp = Position(_currShift.x, bestPos); break;
+ case 2 : testp = Position(0.5f * (_currShift.x - _currShift.y + bestPos), 0.5f * (_currShift.y - _currShift.x + bestPos)); break;
+ case 3 : testp = Position(0.5f * (_currShift.x + _currShift.y + bestPos), 0.5f * (_currShift.x + _currShift.y - bestPos)); break;
+ }
+ if (bestCost < totalCost - 0.01f)
+ {
+ totalCost = bestCost;
+ resultPos = testp;
+#if !defined GRAPHITE2_NTRACING
+ bestAxis = i;
+#endif
+ }
+ }
+ } // end of loop over 4 directions
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ outputJsonDbgEndSlot(dbgout, resultPos, bestAxis, isCol);
+#endif
+
+ return resultPos;
+
+} // end of ShiftCollider::resolve
+
+
+#if !defined GRAPHITE2_NTRACING
+
+void ShiftCollider::outputJsonDbg(json * const dbgout, Segment *seg, int axis)
+{
+ int axisMax = axis;
+ if (axis < 0) // output all axes
+ {
+ *dbgout << "gid" << _target->gid()
+ << "limit" << _limit
+ << "target" << json::object
+ << "origin" << _target->origin()
+ << "margin" << _margin
+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid())
+ << "slantbox" << seg->getFace()->glyphs().slant(_target->gid())
+ << json::close; // target object
+ *dbgout << "ranges" << json::array;
+ axis = 0;
+ axisMax = 3;
+ }
+ for (int iAxis = axis; iAxis <= axisMax; ++iAxis)
+ {
+ *dbgout << json::flat << json::array << _ranges[iAxis].position();
+ for (Zones::const_iterator s = _ranges[iAxis].begin(), e = _ranges[iAxis].end(); s != e; ++s)
+ *dbgout << json::flat << json::array
+ << Position(s->x, s->xm) << s->sm << s->smx << s->c
+ << json::close;
+ *dbgout << json::close;
+ }
+ if (axis < axisMax) // looped through the _ranges array for all axes
+ *dbgout << json::close; // ranges array
+}
+
+void ShiftCollider::outputJsonDbgStartSlot(json * const dbgout, Segment *seg)
+{
+ *dbgout << json::object // slot - not closed till the end of the caller method
+ << "slot" << objectid(dslot(seg, _target))
+ << "gid" << _target->gid()
+ << "limit" << _limit
+ << "target" << json::object
+ << "origin" << _origin
+ << "currShift" << _currShift
+ << "currOffset" << seg->collisionInfo(_target)->offset()
+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid())
+ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid())
+ << "fix" << "shift";
+ *dbgout << json::close; // target object
+}
+
+void ShiftCollider::outputJsonDbgEndSlot(GR_MAYBE_UNUSED json * const dbgout,
+ Position resultPos, int bestAxis, bool isCol)
+{
+ *dbgout << json::close // vectors array
+ << "result" << resultPos
+ //<< "scraping" << _scraping[bestAxis]
+ << "bestAxis" << bestAxis
+ << "stillBad" << isCol
+ << json::close; // slot object
+}
+
+void ShiftCollider::outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis,
+ float tleft, float bestCost, float bestVal)
+{
+ const char * label;
+ switch (axis)
+ {
+ case 0: label = "x"; break;
+ case 1: label = "y"; break;
+ case 2: label = "sum (NE-SW)"; break;
+ case 3: label = "diff (NW-SE)"; break;
+ default: label = "???"; break;
+ }
+
+ *dbgout << json::object // vector
+ << "direction" << label
+ << "targetMin" << tleft;
+
+ outputJsonDbgRemovals(dbgout, axis, seg);
+
+ *dbgout << "ranges";
+ outputJsonDbg(dbgout, seg, axis);
+
+ *dbgout << "bestCost" << bestCost
+ << "bestVal" << bestVal + tleft
+ << json::close; // vectors object
+}
+
+void ShiftCollider::outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg)
+{
+ *dbgout << "removals" << json::array;
+ _ranges[axis].jsonDbgOut(seg);
+ *dbgout << json::close; // removals array
+}
+
+#endif // !defined GRAPHITE2_NTRACING
+
+
+//// KERN-COLLIDER ////
+
+inline
+static float localmax (float al, float au, float bl, float bu, float x)
+{
+ if (al < bl)
+ { if (au < bu) return au < x ? au : x; }
+ else if (au > bu) return bl < x ? bl : x;
+ return x;
+}
+
+inline
+static float localmin(float al, float au, float bl, float bu, float x)
+{
+ if (bl > al)
+ { if (bu > au) return bl > x ? bl : x; }
+ else if (au > bu) return al > x ? al : x;
+ return x;
+}
+
+// Return the given edge of the glyph at height y, taking any slant box into account.
+static float get_edge(Segment *seg, const Slot *s, const Position &shift, float y, float width, float margin, bool isRight)
+{
+ const GlyphCache &gc = seg->getFace()->glyphs();
+ unsigned short gid = s->gid();
+ float sx = s->origin().x + shift.x;
+ float sy = s->origin().y + shift.y;
+ uint8 numsub = gc.numSubBounds(gid);
+ float res = isRight ? (float)-1e38 : (float)1e38;
+
+ if (numsub > 0)
+ {
+ for (int i = 0; i < numsub; ++i)
+ {
+ const BBox &sbb = gc.getSubBoundingBBox(gid, i);
+ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, i);
+ if (sy + sbb.yi - margin > y + width / 2 || sy + sbb.ya + margin < y - width / 2)
+ continue;
+ if (isRight)
+ {
+ float x = sx + sbb.xa + margin;
+ if (x > res)
+ {
+ float td = sx - sy + ssb.da + margin + y;
+ float ts = sx + sy + ssb.sa + margin - y;
+ x = localmax(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x);
+ if (x > res)
+ res = x;
+ }
+ }
+ else
+ {
+ float x = sx + sbb.xi - margin;
+ if (x < res)
+ {
+ float td = sx - sy + ssb.di - margin + y;
+ float ts = sx + sy + ssb.si - margin - y;
+ x = localmin(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x);
+ if (x < res)
+ res = x;
+ }
+ }
+ }
+ }
+ else
+ {
+ const BBox &bb = gc.getBoundingBBox(gid);
+ const SlantBox &sb = gc.getBoundingSlantBox(gid);
+ float td = sx - sy + y;
+ float ts = sx + sy - y;
+ if (isRight)
+ res = localmax(td + sb.da - width / 2, td + sb.da + width / 2, ts + sb.sa - width / 2, ts + sb.sa + width / 2, sx + bb.xa) + margin;
+ else
+ res = localmin(td + sb.di - width / 2, td + sb.di + width / 2, ts + sb.si - width / 2, ts + sb.si + width / 2, sx + bb.xi) - margin;
+ }
+ return res;
+}
+
+
+bool KernCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin,
+ const Position &currShift, const Position &offsetPrev, int dir,
+ float ymin, float ymax, GR_MAYBE_UNUSED json * const dbgout)
+{
+ const GlyphCache &gc = seg->getFace()->glyphs();
+ const Slot *base = aSlot;
+ // const Slot *last = aSlot;
+ const Slot *s;
+ int numSlices;
+ while (base->attachedTo())
+ base = base->attachedTo();
+ if (margin < 10) margin = 10;
+
+ _limit = limit;
+ _offsetPrev = offsetPrev; // kern from a previous pass
+
+ // Calculate the height of the glyph and how many horizontal slices to use.
+ if (_maxy >= 1e37f)
+ {
+ _sliceWidth = margin / 1.5f;
+ _maxy = ymax + margin;
+ _miny = ymin - margin;
+ numSlices = int((_maxy - _miny + 2) / (_sliceWidth / 1.5f) + 1.f); // +2 helps with rounding errors
+ _edges.clear();
+ _edges.insert(_edges.begin(), numSlices, (dir & 1) ? 1e38f : -1e38f);
+ _xbound = (dir & 1) ? (float)1e38f : (float)-1e38f;
+ }
+ else if (_maxy != ymax || _miny != ymin)
+ {
+ if (_miny != ymin)
+ {
+ numSlices = int((ymin - margin - _miny) / _sliceWidth - 1);
+ _miny += numSlices * _sliceWidth;
+ if (numSlices < 0)
+ _edges.insert(_edges.begin(), -numSlices, (dir & 1) ? 1e38f : -1e38f);
+ else if ((unsigned)numSlices < _edges.size()) // this shouldn't fire since we always grow the range
+ {
+ Vector<float>::iterator e = _edges.begin();
+ while (numSlices--)
+ ++e;
+ _edges.erase(_edges.begin(), e);
+ }
+ }
+ if (_maxy != ymax)
+ {
+ numSlices = int((ymax + margin - _miny) / _sliceWidth + 1);
+ _maxy = numSlices * _sliceWidth + _miny;
+ if (numSlices > (int)_edges.size())
+ _edges.insert(_edges.end(), numSlices - _edges.size(), (dir & 1) ? 1e38f : -1e38f);
+ else if (numSlices < (int)_edges.size()) // this shouldn't fire since we always grow the range
+ {
+ while ((int)_edges.size() > numSlices)
+ _edges.pop_back();
+ }
+ }
+ goto done;
+ }
+ numSlices = _edges.size();
+
+#if !defined GRAPHITE2_NTRACING
+ // Debugging
+ _seg = seg;
+ _slotNear.clear();
+ _slotNear.insert(_slotNear.begin(), numSlices, NULL);
+ _nearEdges.clear();
+ _nearEdges.insert(_nearEdges.begin(), numSlices, (dir & 1) ? -1e38f : +1e38f);
+#endif
+
+ // Determine the trailing edge of each slice (ie, left edge for a RTL glyph).
+ for (s = base; s; s = s->nextInCluster(s))
+ {
+ SlotCollision *c = seg->collisionInfo(s);
+ if (!gc.check(s->gid()))
+ return false;
+ const BBox &bs = gc.getBoundingBBox(s->gid());
+ float x = s->origin().x + c->shift().x + ((dir & 1) ? bs.xi : bs.xa);
+ // Loop over slices.
+ // Note smin might not be zero if glyph s is not at the bottom of the cluster; similarly for smax.
+ float toffset = c->shift().y - _miny + 1 + s->origin().y;
+ int smin = max(0, int((bs.yi + toffset) / _sliceWidth));
+ int smax = min(numSlices - 1, int((bs.ya + toffset) / _sliceWidth + 1));
+ for (int i = smin; i <= smax; ++i)
+ {
+ float t;
+ float y = _miny - 1 + (i + .5f) * _sliceWidth; // vertical center of slice
+ if ((dir & 1) && x < _edges[i])
+ {
+ t = get_edge(seg, s, c->shift(), y, _sliceWidth, margin, false);
+ if (t < _edges[i])
+ {
+ _edges[i] = t;
+ if (t < _xbound)
+ _xbound = t;
+ }
+ }
+ else if (!(dir & 1) && x > _edges[i])
+ {
+ t = get_edge(seg, s, c->shift(), y, _sliceWidth, margin, true);
+ if (t > _edges[i])
+ {
+ _edges[i] = t;
+ if (t > _xbound)
+ _xbound = t;
+ }
+ }
+ }
+ }
+ done:
+ _mingap = (float)1e38;
+ _target = aSlot;
+ _margin = margin;
+ _currShift = currShift;
+ return true;
+} // end of KernCollider::initSlot
+
+
+// Determine how much the target slot needs to kern away from the given slot.
+// In other words, merge information from given slot's position with what the target slot knows
+// about how it can kern.
+// Return false if we know there is no collision, true if we think there might be one.
+bool KernCollider::mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, GR_MAYBE_UNUSED json * const dbgout)
+{
+ int rtl = (dir & 1) * 2 - 1;
+ if (!seg->getFace()->glyphs().check(slot->gid()))
+ return false;
+ const Rect &bb = seg->theGlyphBBoxTemporary(slot->gid());
+ const float sx = slot->origin().x + currShift.x;
+ float x = (sx + (rtl > 0 ? bb.tr.x : bb.bl.x)) * rtl;
+ // this isn't going to reduce _mingap so skip
+ if (x < rtl * (_xbound - _mingap - currSpace))
+ return false;
+
+ const float sy = slot->origin().y + currShift.y;
+ int smin = max(1, int((bb.bl.y + (1 - _miny + sy)) / _sliceWidth + 1)) - 1;
+ int smax = min((int)_edges.size() - 2, int((bb.tr.y + (1 - _miny + sy)) / _sliceWidth + 1)) + 1;
+ if (smin > smax)
+ return false;
+ bool collides = false;
+
+ for (int i = smin; i <= smax; ++i)
+ {
+ float t;
+ float here = _edges[i] * rtl;
+ float y = (float)(_miny - 1 + (i + .5f) * _sliceWidth); // vertical center of slice
+ if ( (x > here - _mingap - currSpace) )
+ {
+ // 2 * currSpace to account for the space that is already separating them and the space we want to add
+ float m = get_edge(seg, slot, currShift, y, _sliceWidth, 0., rtl > 0) * rtl + 2 * currSpace;
+ t = here - m;
+ // _mingap is positive to shrink
+ if (t < _mingap)
+ {
+ _mingap = t;
+ collides = true;
+ }
+#if !defined GRAPHITE2_NTRACING
+ // Debugging - remember the closest neighboring edge for this slice.
+ if (m > rtl * _nearEdges[i])
+ {
+ _slotNear[i] = slot;
+ _nearEdges[i] = m * rtl;
+ }
+#endif
+ }
+ }
+ return collides; // note that true is not a necessarily reliable value
+
+} // end of KernCollider::mergeSlot
+
+
+// Return the amount to kern by.
+Position KernCollider::resolve(GR_MAYBE_UNUSED Segment *seg, GR_MAYBE_UNUSED Slot *slot,
+ int dir, GR_MAYBE_UNUSED json * const dbgout)
+{
+ float resultNeeded = (1 - 2 * (dir & 1)) * _mingap;
+ // float resultNeeded = (1 - 2 * (dir & 1)) * (_mingap - margin);
+ float result = min(_limit.tr.x - _offsetPrev.x, max(resultNeeded, _limit.bl.x - _offsetPrev.x));
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ {
+ *dbgout << json::object // slot
+ << "slot" << objectid(dslot(seg, _target))
+ << "gid" << _target->gid()
+ << "limit" << _limit
+ << "miny" << _miny
+ << "maxy" << _maxy
+ << "slicewidth" << _sliceWidth
+ << "target" << json::object
+ << "origin" << _target->origin()
+ //<< "currShift" << _currShift
+ << "offsetPrev" << _offsetPrev
+ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid())
+ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid())
+ << "fix" << "kern"
+ << json::close; // target object
+
+ *dbgout << "slices" << json::array;
+ for (int is = 0; is < (int)_edges.size(); is++)
+ {
+ *dbgout << json::flat << json::object
+ << "i" << is
+ << "targetEdge" << _edges[is]
+ << "neighbor" << objectid(dslot(seg, _slotNear[is]))
+ << "nearEdge" << _nearEdges[is]
+ << json::close;
+ }
+ *dbgout << json::close; // slices array
+
+ *dbgout
+ << "xbound" << _xbound
+ << "minGap" << _mingap
+ << "needed" << resultNeeded
+ << "result" << result
+ << "stillBad" << (result != resultNeeded)
+ << json::close; // slot object
+ }
+#endif
+
+ return Position(result, 0.);
+
+} // end of KernCollider::resolve
+
+void KernCollider::shift(const Position &mv, int dir)
+{
+ for (Vector<float>::iterator e = _edges.begin(); e != _edges.end(); ++e)
+ *e += mv.x;
+ _xbound += (1 - 2 * (dir & 1)) * mv.x;
+}
+
+//// SLOT-COLLISION ////
+
+// Initialize the collision attributes for the given slot.
+SlotCollision::SlotCollision(Segment *seg, Slot *slot)
+{
+ initFromSlot(seg, slot);
+}
+
+void SlotCollision::initFromSlot(Segment *seg, Slot *slot)
+{
+ // Initialize slot attributes from glyph attributes.
+ // The order here must match the order in the grcompiler code,
+ // GrcSymbolTable::AssignInternalGlyphAttrIDs.
+ uint16 gid = slot->gid();
+ uint16 aCol = seg->silf()->aCollision(); // flags attr ID
+ const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(gid);
+ if (!glyphFace)
+ return;
+ const sparse &p = glyphFace->attrs();
+ _flags = p[aCol];
+ _limit = Rect(Position(p[aCol+1], p[aCol+2]),
+ Position(p[aCol+3], p[aCol+4]));
+ _margin = p[aCol+5];
+ _marginWt = p[aCol+6];
+
+ _seqClass = p[aCol+7];
+ _seqProxClass = p[aCol+8];
+ _seqOrder = p[aCol+9];
+ _seqAboveXoff = p[aCol+10];
+ _seqAboveWt = p[aCol+11];
+ _seqBelowXlim = p[aCol+12];
+ _seqBelowWt = p[aCol+13];
+ _seqValignHt = p[aCol+14];
+ _seqValignWt = p[aCol+15];
+
+ // These attributes do not have corresponding glyph attribute:
+ _exclGlyph = 0;
+ _exclOffset = Position(0, 0);
+}
+
+float SlotCollision::getKern(int dir) const
+{
+ if ((_flags & SlotCollision::COLL_KERN) != 0)
+ return float(_shift.x * ((dir & 1) ? -1 : 1));
+ else
+ return 0;
+}
+
+bool SlotCollision::ignore() const
+{
+ return ((flags() & SlotCollision::COLL_IGNORE) || (flags() & SlotCollision::COLL_ISSPACE));
+}
diff --git a/gfx/graphite2/src/Decompressor.cpp b/gfx/graphite2/src/Decompressor.cpp
new file mode 100644
index 000000000..4b8b1b495
--- /dev/null
+++ b/gfx/graphite2/src/Decompressor.cpp
@@ -0,0 +1,115 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2015, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cassert>
+
+#include "inc/Decompressor.h"
+#include "inc/Compression.h"
+
+using namespace lz4;
+
+namespace {
+
+inline
+u32 read_literal(u8 const * &s, u8 const * const e, u32 l) {
+ if (l == 15 && s != e)
+ {
+ u8 b = 0;
+ do { l += b = *s++; } while(b==0xff && s != e);
+ }
+ return l;
+}
+
+bool read_sequence(u8 const * &src, u8 const * const end, u8 const * &literal, u32 & literal_len, u32 & match_len, u32 & match_dist)
+{
+ u8 const token = *src++;
+
+ literal_len = read_literal(src, end, token >> 4);
+ literal = src;
+ src += literal_len;
+
+ if (src > end - 2 || src < literal)
+ return false;
+
+ match_dist = *src++;
+ match_dist |= *src++ << 8;
+ match_len = read_literal(src, end, token & 0xf);
+
+ return src <= end-5;
+}
+
+}
+
+int lz4::decompress(void const *in, size_t in_size, void *out, size_t out_size)
+{
+ if (out_size <= in_size || in_size < sizeof(unsigned long)+1)
+ return -1;
+
+ u8 const * src = static_cast<u8 const *>(in),
+ * literal = 0,
+ * const src_end = src + in_size;
+
+ u8 * dst = static_cast<u8*>(out),
+ * const dst_end = dst + out_size;
+
+ u32 literal_len = 0,
+ match_len = 0,
+ match_dist = 0;
+
+ while (read_sequence(src, src_end, literal, literal_len, match_len, match_dist))
+ {
+ if (literal_len != 0)
+ {
+ // Copy in literal. At this point the last full sequence must be at
+ // least MINMATCH + 5 from the end of the output buffer.
+ if (align(literal_len) > unsigned(dst_end - dst - (MINMATCH+5)) || dst_end - dst < MINMATCH + 5)
+ return -1;
+ dst = overrun_copy(dst, literal, literal_len);
+ }
+
+ // Copy, possibly repeating, match from earlier in the
+ // decoded output.
+ u8 const * const pcpy = dst - match_dist;
+ if (pcpy < static_cast<u8*>(out)
+ || pcpy >= dst
+ || match_len > unsigned(dst_end - dst - (MINMATCH+5))
+ || dst_end - dst < MINMATCH + 5)
+ return -1;
+ if (dst > pcpy+sizeof(unsigned long)
+ && dst + align(match_len + MINMATCH) <= dst_end)
+ dst = overrun_copy(dst, pcpy, match_len + MINMATCH);
+ else
+ dst = safe_copy(dst, pcpy, match_len + MINMATCH);
+ }
+
+ if (literal_len > src_end - literal
+ || literal_len > dst_end - dst)
+ return -1;
+ dst = fast_copy(dst, literal, literal_len);
+
+ return dst - (u8*)out;
+}
+
diff --git a/gfx/graphite2/src/Face.cpp b/gfx/graphite2/src/Face.cpp
new file mode 100644
index 000000000..81b5ced8c
--- /dev/null
+++ b/gfx/graphite2/src/Face.cpp
@@ -0,0 +1,370 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cstring>
+#include "graphite2/Segment.h"
+#include "inc/CmapCache.h"
+#include "inc/debug.h"
+#include "inc/Decompressor.h"
+#include "inc/Endian.h"
+#include "inc/Face.h"
+#include "inc/FileFace.h"
+#include "inc/GlyphFace.h"
+#include "inc/json.h"
+#include "inc/SegCacheStore.h"
+#include "inc/Segment.h"
+#include "inc/NameTable.h"
+#include "inc/Error.h"
+
+using namespace graphite2;
+
+namespace
+{
+enum compression
+{
+ NONE,
+ LZ4
+};
+
+}
+
+Face::Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops)
+: m_appFaceHandle(appFaceHandle),
+ m_pFileFace(NULL),
+ m_pGlyphFaceCache(NULL),
+ m_cmap(NULL),
+ m_pNames(NULL),
+ m_logger(NULL),
+ m_error(0), m_errcntxt(0),
+ m_silfs(NULL),
+ m_numSilf(0),
+ m_ascent(0),
+ m_descent(0)
+{
+ memset(&m_ops, 0, sizeof m_ops);
+ memcpy(&m_ops, &ops, min(sizeof m_ops, ops.size));
+}
+
+
+Face::~Face()
+{
+ setLogger(0);
+ delete m_pGlyphFaceCache;
+ delete m_cmap;
+ delete[] m_silfs;
+#ifndef GRAPHITE2_NFILEFACE
+ delete m_pFileFace;
+#endif
+ delete m_pNames;
+}
+
+float Face::default_glyph_advance(const void* font_ptr, gr_uint16 glyphid)
+{
+ const Font & font = *reinterpret_cast<const Font *>(font_ptr);
+
+ return font.face().glyphs().glyph(glyphid)->theAdvance().x * font.scale();
+}
+
+bool Face::readGlyphs(uint32 faceOptions)
+{
+ Error e;
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _glyph_cat(tele.glyph);
+#endif
+ error_context(EC_READGLYPHS);
+ m_pGlyphFaceCache = new GlyphCache(*this, faceOptions);
+
+ if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM)
+ || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS)
+ || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM))
+ {
+ return error(e);
+ }
+
+ if (faceOptions & gr_face_cacheCmap)
+ m_cmap = new CachedCmap(*this);
+ else
+ m_cmap = new DirectCmap(*this);
+ if (e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP))
+ return error(e);
+
+ if (faceOptions & gr_face_preloadGlyphs)
+ nameTable(); // preload the name table along with the glyphs.
+
+ return true;
+}
+
+bool Face::readGraphite(const Table & silf)
+{
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _silf_cat(tele.silf);
+#endif
+ Error e;
+ error_context(EC_READSILF);
+ const byte * p = silf;
+ if (e.test(!p, E_NOSILF) || e.test(silf.size() < 20, E_BADSIZE)) return error(e);
+
+ const uint32 version = be::read<uint32>(p);
+ if (e.test(version < 0x00020000, E_TOOOLD)) return error(e);
+ if (version >= 0x00030000)
+ be::skip<uint32>(p); // compilerVersion
+ m_numSilf = be::read<uint16>(p);
+
+ be::skip<uint16>(p); // reserved
+
+ bool havePasses = false;
+ m_silfs = new Silf[m_numSilf];
+ if (e.test(!m_silfs, E_OUTOFMEM)) return error(e);
+ for (int i = 0; i < m_numSilf; i++)
+ {
+ error_context(EC_ASILF + (i << 8));
+ const uint32 offset = be::read<uint32>(p),
+ next = i == m_numSilf - 1 ? silf.size() : be::peek<uint32>(p);
+ if (e.test(next > silf.size() || offset >= next, E_BADSIZE))
+ return error(e);
+
+ if (!m_silfs[i].readGraphite(silf + offset, next - offset, *this, version))
+ return false;
+
+ if (m_silfs[i].numPasses())
+ havePasses = true;
+ }
+
+ return havePasses;
+}
+
+bool Face::readFeatures()
+{
+ return m_Sill.readFace(*this);
+}
+
+bool Face::runGraphite(Segment *seg, const Silf *aSilf) const
+{
+#if !defined GRAPHITE2_NTRACING
+ json * dbgout = logger();
+ if (dbgout)
+ {
+ *dbgout << json::object
+ << "id" << objectid(seg)
+ << "passes" << json::array;
+ }
+#endif
+
+// if ((seg->dir() & 1) != aSilf->dir())
+// seg->reverseSlots();
+ if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF)
+ seg->doMirror(aSilf->aMirror());
+ bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true);
+ if (res)
+ {
+ seg->associateChars(0, seg->charInfoCount());
+ if (aSilf->flags() & 0x20)
+ res &= seg->initCollisions();
+ if (res)
+ res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false);
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+{
+ seg->positionSlots(0, 0, 0, seg->currdir());
+ *dbgout << json::item
+ << json::close // Close up the passes array
+ << "outputdir" << (seg->currdir() ? "rtl" : "ltr")
+ << "output" << json::array;
+ for(Slot * s = seg->first(); s; s = s->next())
+ *dbgout << dslot(seg, s);
+ *dbgout << json::close
+ << "advance" << seg->advance()
+ << "chars" << json::array;
+ for(size_t i = 0, n = seg->charInfoCount(); i != n; ++i)
+ *dbgout << json::flat << *seg->charinfo(i);
+ *dbgout << json::close // Close up the chars array
+ << json::close; // Close up the segment object
+ }
+#endif
+
+ return res;
+}
+
+void Face::setLogger(FILE * log_file GR_MAYBE_UNUSED)
+{
+#if !defined GRAPHITE2_NTRACING
+ delete m_logger;
+ m_logger = log_file ? new json(log_file) : 0;
+#endif
+}
+
+const Silf *Face::chooseSilf(uint32 script) const
+{
+ if (m_numSilf == 0)
+ return NULL;
+ else if (m_numSilf == 1 || script == 0)
+ return m_silfs;
+ else // do more work here
+ return m_silfs;
+}
+
+uint16 Face::findPseudo(uint32 uid) const
+{
+ return (m_numSilf) ? m_silfs[0].findPseudo(uid) : 0;
+}
+
+int32 Face::getGlyphMetric(uint16 gid, uint8 metric) const
+{
+ switch (metrics(metric))
+ {
+ case kgmetAscent : return m_ascent;
+ case kgmetDescent : return m_descent;
+ default:
+ if (gid >= glyphs().numGlyphs()) return 0;
+ return glyphs().glyph(gid)->getMetric(metric);
+ }
+}
+
+void Face::takeFileFace(FileFace* pFileFace GR_MAYBE_UNUSED/*takes ownership*/)
+{
+#ifndef GRAPHITE2_NFILEFACE
+ if (m_pFileFace==pFileFace)
+ return;
+
+ delete m_pFileFace;
+ m_pFileFace = pFileFace;
+#endif
+}
+
+NameTable * Face::nameTable() const
+{
+ if (m_pNames) return m_pNames;
+ const Table name(*this, Tag::name);
+ if (name)
+ m_pNames = new NameTable(name, name.size());
+ return m_pNames;
+}
+
+uint16 Face::languageForLocale(const char * locale) const
+{
+ nameTable();
+ if (m_pNames)
+ return m_pNames->getLanguageId(locale);
+ return 0;
+}
+
+
+
+Face::Table::Table(const Face & face, const Tag n, uint32 version) throw()
+: _f(&face), _compressed(false)
+{
+ size_t sz = 0;
+ _p = static_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &sz));
+ _sz = uint32(sz);
+
+ if (!TtfUtil::CheckTable(n, _p, _sz))
+ {
+ releaseBuffers(); // Make sure we release the table buffer even if the table failed it's checks
+ return;
+ }
+
+ if (be::peek<uint32>(_p) >= version)
+ decompress();
+}
+
+void Face::Table::releaseBuffers()
+{
+ if (_compressed)
+ free(const_cast<byte *>(_p));
+ else if (_p && _f->m_ops.release_table)
+ (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p);
+ _p = 0; _sz = 0;
+}
+
+Face::Table & Face::Table::operator = (const Table & rhs) throw()
+{
+ if (_p == rhs._p) return *this;
+
+ this->~Table();
+ new (this) Table(rhs);
+ return *this;
+}
+
+Error Face::Table::decompress()
+{
+ Error e;
+ if (e.test(_sz < 5 * sizeof(uint32), E_BADSIZE))
+ return e;
+ byte * uncompressed_table = 0;
+ size_t uncompressed_size = 0;
+
+ const byte * p = _p;
+ const uint32 version = be::read<uint32>(p); // Table version number.
+
+ // The scheme is in the top 5 bits of the 1st uint32.
+ const uint32 hdr = be::read<uint32>(p);
+ switch(compression(hdr >> 27))
+ {
+ case NONE: return e;
+
+ case LZ4:
+ {
+ uncompressed_size = hdr & 0x07ffffff;
+ uncompressed_table = gralloc<byte>(uncompressed_size);
+ if (!e.test(!uncompressed_table || uncompressed_size < 4, E_OUTOFMEM))
+ {
+ memset(uncompressed_table, 0, 4); // make sure version number is initialised
+ // coverity[forward_null : FALSE] - uncompressed_table has been checked so can't be null
+ // coverity[checked_return : FALSE] - we test e later
+ e.test(lz4::decompress(p, _sz - 2*sizeof(uint32), uncompressed_table, uncompressed_size) != signed(uncompressed_size), E_SHRINKERFAILED);
+ }
+ break;
+ }
+
+ default:
+ e.error(E_BADSCHEME);
+ };
+
+ // Check the uncompressed version number against the original.
+ if (!e)
+ // coverity[forward_null : FALSE] - uncompressed_table has already been tested so can't be null
+ // coverity[checked_return : FALSE] - we test e later
+ e.test(be::peek<uint32>(uncompressed_table) != version, E_SHRINKERFAILED);
+
+ // Tell the provider to release the compressed form since were replacing
+ // it anyway.
+ releaseBuffers();
+
+ if (e)
+ {
+ free(uncompressed_table);
+ uncompressed_table = 0;
+ uncompressed_size = 0;
+ }
+
+ _p = uncompressed_table;
+ _sz = uncompressed_size;
+ _compressed = true;
+
+ return e;
+}
diff --git a/gfx/graphite2/src/FeatureMap.cpp b/gfx/graphite2/src/FeatureMap.cpp
new file mode 100644
index 000000000..d0fc55ddf
--- /dev/null
+++ b/gfx/graphite2/src/FeatureMap.cpp
@@ -0,0 +1,293 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cstring>
+
+#include "inc/Main.h"
+#include "inc/bits.h"
+#include "inc/Endian.h"
+#include "inc/FeatureMap.h"
+#include "inc/FeatureVal.h"
+#include "graphite2/Font.h"
+#include "inc/TtfUtil.h"
+#include <cstdlib>
+#include "inc/Face.h"
+
+
+using namespace graphite2;
+
+namespace
+{
+ static int cmpNameAndFeatures(const void *ap, const void *bp)
+ {
+ const NameAndFeatureRef & a = *static_cast<const NameAndFeatureRef *>(ap),
+ & b = *static_cast<const NameAndFeatureRef *>(bp);
+ return (a < b ? -1 : (b < a ? 1 : 0));
+ }
+
+ const size_t FEAT_HEADER = sizeof(uint32) + 2*sizeof(uint16) + sizeof(uint32),
+ FEATURE_SIZE = sizeof(uint32)
+ + 2*sizeof(uint16)
+ + sizeof(uint32)
+ + 2*sizeof(uint16),
+ FEATURE_SETTING_SIZE = sizeof(int16) + sizeof(uint16);
+
+ uint16 readFeatureSettings(const byte * p, FeatureSetting * s, size_t num_settings)
+ {
+ uint16 max_val = 0;
+ for (FeatureSetting * const end = s + num_settings; s != end; ++s)
+ {
+ const int16 value = be::read<int16>(p);
+ ::new (s) FeatureSetting(value, be::read<uint16>(p));
+ if (uint16(value) > max_val) max_val = value;
+ }
+
+ return max_val;
+ }
+}
+
+FeatureRef::FeatureRef(const Face & face,
+ unsigned short & bits_offset, uint32 max_val,
+ uint32 name, uint16 uiName, uint16 flags,
+ FeatureSetting *settings, uint16 num_set) throw()
+: m_pFace(&face),
+ m_nameValues(settings),
+ m_mask(mask_over_val(max_val)),
+ m_max(max_val),
+ m_id(name),
+ m_nameid(uiName),
+ m_flags(flags),
+ m_numSet(num_set)
+{
+ const uint8 need_bits = bit_set_count(m_mask);
+ m_index = (bits_offset + need_bits) / SIZEOF_CHUNK;
+ if (m_index > bits_offset / SIZEOF_CHUNK)
+ bits_offset = m_index*SIZEOF_CHUNK;
+ m_bits = bits_offset % SIZEOF_CHUNK;
+ bits_offset += need_bits;
+ m_mask <<= m_bits;
+}
+
+FeatureRef::~FeatureRef() throw()
+{
+ free(m_nameValues);
+}
+
+bool FeatureMap::readFeats(const Face & face)
+{
+ const Face::Table feat(face, TtfUtil::Tag::Feat);
+ const byte * p = feat;
+ if (!p) return true;
+ if (feat.size() < FEAT_HEADER) return false;
+
+ const byte *const feat_start = p,
+ *const feat_end = p + feat.size();
+
+ const uint32 version = be::read<uint32>(p);
+ m_numFeats = be::read<uint16>(p);
+ be::skip<uint16>(p);
+ be::skip<uint32>(p);
+
+ // Sanity checks
+ if (m_numFeats == 0) return true;
+ if (version < 0x00010000 ||
+ p + m_numFeats*FEATURE_SIZE > feat_end)
+ { //defensive
+ m_numFeats = 0;
+ return false;
+ }
+
+ m_feats = new FeatureRef [m_numFeats];
+ uint16 * const defVals = gralloc<uint16>(m_numFeats);
+ if (!defVals || !m_feats) return false;
+ unsigned short bits = 0; //to cause overflow on first Feature
+
+ for (int i = 0, ie = m_numFeats; i != ie; i++)
+ {
+ const uint32 label = version < 0x00020000 ? be::read<uint16>(p) : be::read<uint32>(p);
+ const uint16 num_settings = be::read<uint16>(p);
+ if (version >= 0x00020000)
+ be::skip<uint16>(p);
+ const uint32 settings_offset = be::read<uint32>(p);
+ const uint16 flags = be::read<uint16>(p),
+ uiName = be::read<uint16>(p);
+
+ if (settings_offset > size_t(feat_end - feat_start)
+ || settings_offset + num_settings * FEATURE_SETTING_SIZE > size_t(feat_end - feat_start))
+ {
+ free(defVals);
+ return false;
+ }
+
+ FeatureSetting *uiSet;
+ uint32 maxVal;
+ if (num_settings != 0)
+ {
+ uiSet = gralloc<FeatureSetting>(num_settings);
+ if (!uiSet)
+ {
+ free(defVals);
+ return false;
+ }
+ maxVal = readFeatureSettings(feat_start + settings_offset, uiSet, num_settings);
+ defVals[i] = uiSet[0].value();
+ }
+ else
+ {
+ uiSet = 0;
+ maxVal = 0xffffffff;
+ defVals[i] = 0;
+ }
+
+ ::new (m_feats + i) FeatureRef (face, bits, maxVal,
+ label, uiName, flags,
+ uiSet, num_settings);
+ }
+ new (&m_defaultFeatures) Features(bits/(sizeof(uint32)*8) + 1, *this);
+ m_pNamedFeats = new NameAndFeatureRef[m_numFeats];
+ if (!m_pNamedFeats)
+ {
+ free(defVals);
+ return false;
+ }
+ for (int i = 0; i < m_numFeats; ++i)
+ {
+ m_feats[i].applyValToFeature(defVals[i], m_defaultFeatures);
+ m_pNamedFeats[i] = m_feats+i;
+ }
+
+ free(defVals);
+
+ qsort(m_pNamedFeats, m_numFeats, sizeof(NameAndFeatureRef), &cmpNameAndFeatures);
+
+ return true;
+}
+
+bool SillMap::readFace(const Face & face)
+{
+ if (!m_FeatureMap.readFeats(face)) return false;
+ if (!readSill(face)) return false;
+ return true;
+}
+
+
+bool SillMap::readSill(const Face & face)
+{
+ const Face::Table sill(face, TtfUtil::Tag::Sill);
+ const byte *p = sill;
+
+ if (!p) return true;
+ if (sill.size() < 12) return false;
+ if (be::read<uint32>(p) != 0x00010000UL) return false;
+ m_numLanguages = be::read<uint16>(p);
+ m_langFeats = new LangFeaturePair[m_numLanguages];
+ if (!m_langFeats || !m_FeatureMap.m_numFeats) { m_numLanguages = 0; return true; } //defensive
+
+ p += 6; // skip the fast search
+ if (sill.size() < m_numLanguages * 8U + 12) return false;
+
+ for (int i = 0; i < m_numLanguages; i++)
+ {
+ uint32 langid = be::read<uint32>(p);
+ uint16 numSettings = be::read<uint16>(p);
+ uint16 offset = be::read<uint16>(p);
+ if (offset + 8U * numSettings > sill.size() && numSettings > 0) return false;
+ Features* feats = new Features(m_FeatureMap.m_defaultFeatures);
+ if (!feats) return false;
+ const byte *pLSet = sill + offset;
+
+ // Apply langauge specific settings
+ for (int j = 0; j < numSettings; j++)
+ {
+ uint32 name = be::read<uint32>(pLSet);
+ uint16 val = be::read<uint16>(pLSet);
+ pLSet += 2;
+ const FeatureRef* pRef = m_FeatureMap.findFeatureRef(name);
+ if (pRef) pRef->applyValToFeature(val, *feats);
+ }
+ // Add the language id feature which is always feature id 1
+ const FeatureRef* pRef = m_FeatureMap.findFeatureRef(1);
+ if (pRef) pRef->applyValToFeature(langid, *feats);
+
+ m_langFeats[i].m_lang = langid;
+ m_langFeats[i].m_pFeatures = feats;
+ }
+ return true;
+}
+
+
+Features* SillMap::cloneFeatures(uint32 langname/*0 means default*/) const
+{
+ if (langname)
+ {
+ // the number of languages in a font is usually small e.g. 8 in Doulos
+ // so this loop is not very expensive
+ for (uint16 i = 0; i < m_numLanguages; i++)
+ {
+ if (m_langFeats[i].m_lang == langname)
+ return new Features(*m_langFeats[i].m_pFeatures);
+ }
+ }
+ return new Features (m_FeatureMap.m_defaultFeatures);
+}
+
+
+
+const FeatureRef *FeatureMap::findFeatureRef(uint32 name) const
+{
+ NameAndFeatureRef *it;
+
+ for (it = m_pNamedFeats; it < m_pNamedFeats + m_numFeats; ++it)
+ if (it->m_name == name)
+ return it->m_pFRef;
+ return NULL;
+}
+
+bool FeatureRef::applyValToFeature(uint32 val, Features & pDest) const
+{
+ if (val>maxVal() || !m_pFace)
+ return false;
+ if (pDest.m_pMap==NULL)
+ pDest.m_pMap = &m_pFace->theSill().theFeatureMap();
+ else
+ if (pDest.m_pMap!=&m_pFace->theSill().theFeatureMap())
+ return false; //incompatible
+ if (m_index >= pDest.size())
+ pDest.resize(m_index+1);
+ pDest[m_index] &= ~m_mask;
+ pDest[m_index] |= (uint32(val) << m_bits);
+ return true;
+}
+
+uint32 FeatureRef::getFeatureVal(const Features& feats) const
+{
+ if (m_index < feats.size() && &m_pFace->theSill().theFeatureMap()==feats.m_pMap)
+ return (feats[m_index] & m_mask) >> m_bits;
+ else
+ return 0;
+}
+
+
diff --git a/gfx/graphite2/src/FileFace.cpp b/gfx/graphite2/src/FileFace.cpp
new file mode 100644
index 000000000..d1510d3e9
--- /dev/null
+++ b/gfx/graphite2/src/FileFace.cpp
@@ -0,0 +1,115 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cstring>
+#include "inc/FileFace.h"
+
+
+#ifndef GRAPHITE2_NFILEFACE
+
+using namespace graphite2;
+
+FileFace::FileFace(const char *filename)
+: _file(fopen(filename, "rb")),
+ _file_len(0),
+ _header_tbl(NULL),
+ _table_dir(NULL)
+{
+ if (!_file) return;
+
+ if (fseek(_file, 0, SEEK_END)) return;
+ _file_len = ftell(_file);
+ if (fseek(_file, 0, SEEK_SET)) return;
+
+ size_t tbl_offset, tbl_len;
+
+ // Get the header.
+ if (!TtfUtil::GetHeaderInfo(tbl_offset, tbl_len)) return;
+ if (fseek(_file, tbl_offset, SEEK_SET)) return;
+ _header_tbl = (TtfUtil::Sfnt::OffsetSubTable*)gralloc<char>(tbl_len);
+ if (_header_tbl)
+ {
+ if (fread(_header_tbl, 1, tbl_len, _file) != tbl_len) return;
+ if (!TtfUtil::CheckHeader(_header_tbl)) return;
+ }
+
+ // Get the table directory
+ if (!TtfUtil::GetTableDirInfo(_header_tbl, tbl_offset, tbl_len)) return;
+ _table_dir = (TtfUtil::Sfnt::OffsetSubTable::Entry*)gralloc<char>(tbl_len);
+ if (fseek(_file, tbl_offset, SEEK_SET)) return;
+ if (_table_dir && fread(_table_dir, 1, tbl_len, _file) != tbl_len)
+ {
+ free(_table_dir);
+ _table_dir = NULL;
+ }
+ return;
+}
+
+FileFace::~FileFace()
+{
+ free(_table_dir);
+ free(_header_tbl);
+ if (_file)
+ fclose(_file);
+}
+
+
+const void *FileFace::get_table_fn(const void* appFaceHandle, unsigned int name, size_t *len)
+{
+ if (appFaceHandle == 0) return 0;
+ const FileFace & file_face = *static_cast<const FileFace *>(appFaceHandle);
+
+ void *tbl;
+ size_t tbl_offset, tbl_len;
+ if (!TtfUtil::GetTableInfo(name, file_face._header_tbl, file_face._table_dir, tbl_offset, tbl_len))
+ return 0;
+
+ if (tbl_offset > file_face._file_len || tbl_len > file_face._file_len - tbl_offset
+ || fseek(file_face._file, tbl_offset, SEEK_SET) != 0)
+ return 0;
+
+ tbl = malloc(tbl_len);
+ if (fread(tbl, 1, tbl_len, file_face._file) != tbl_len)
+ {
+ free(tbl);
+ return 0;
+ }
+
+ if (len) *len = tbl_len;
+ return tbl;
+}
+
+void FileFace::rel_table_fn(const void* appFaceHandle, const void *table_buffer)
+{
+ if (appFaceHandle == 0) return;
+
+ free(const_cast<void *>(table_buffer));
+}
+
+const gr_face_ops FileFace::ops = { sizeof FileFace::ops, &FileFace::get_table_fn, &FileFace::rel_table_fn };
+
+
+#endif //!GRAPHITE2_NFILEFACE
diff --git a/gfx/graphite2/src/Font.cpp b/gfx/graphite2/src/Font.cpp
new file mode 100644
index 000000000..5cec362bf
--- /dev/null
+++ b/gfx/graphite2/src/Font.cpp
@@ -0,0 +1,61 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Face.h"
+#include "inc/Font.h"
+#include "inc/GlyphCache.h"
+
+using namespace graphite2;
+
+Font::Font(float ppm, const Face & f, const void * appFontHandle, const gr_font_ops * ops)
+: m_appFontHandle(appFontHandle ? appFontHandle : this),
+ m_face(f),
+ m_scale(ppm / f.glyphs().unitsPerEm()),
+ m_hinted(appFontHandle && ops && (ops->glyph_advance_x || ops->glyph_advance_y))
+{
+ memset(&m_ops, 0, sizeof m_ops);
+ if (m_hinted && ops)
+ memcpy(&m_ops, ops, min(sizeof m_ops, ops->size));
+ else
+ m_ops.glyph_advance_x = &Face::default_glyph_advance;
+
+ size_t nGlyphs = f.glyphs().numGlyphs();
+ m_advances = gralloc<float>(nGlyphs);
+ if (m_advances)
+ {
+ for (float *advp = m_advances; nGlyphs; --nGlyphs, ++advp)
+ *advp = INVALID_ADVANCE;
+ }
+}
+
+
+/*virtual*/ Font::~Font()
+{
+ free(m_advances);
+}
+
+
+
diff --git a/gfx/graphite2/src/GlyphCache.cpp b/gfx/graphite2/src/GlyphCache.cpp
new file mode 100644
index 000000000..c4ab807b8
--- /dev/null
+++ b/gfx/graphite2/src/GlyphCache.cpp
@@ -0,0 +1,492 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Font.h"
+
+#include "inc/Main.h"
+#include "inc/Face.h" //for the tags
+#include "inc/GlyphCache.h"
+#include "inc/GlyphFace.h"
+#include "inc/Endian.h"
+#include "inc/bits.h"
+
+using namespace graphite2;
+
+namespace
+{
+ // Iterator over version 1 or 2 glat entries which consist of a series of
+ // +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+
+ // v1 |k|n|v1 |v2 |...|vN | or v2 | k | n |v1 |v2 |...|vN |
+ // +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+
+ // variable length structures.
+
+ template<typename W>
+ class _glat_iterator : public std::iterator<std::input_iterator_tag, std::pair<sparse::key_type, sparse::mapped_type> >
+ {
+ unsigned short key() const { return be::peek<W>(_e) + _n; }
+ unsigned int run() const { return be::peek<W>(_e+sizeof(W)); }
+ void advance_entry() { _n = 0; _e = _v; be::skip<W>(_v,2); }
+ public:
+ _glat_iterator(const void * glat=0) : _e(reinterpret_cast<const byte *>(glat)), _v(_e+2*sizeof(W)), _n(0) {}
+
+ _glat_iterator<W> & operator ++ () {
+ ++_n; be::skip<uint16>(_v);
+ if (_n == run()) advance_entry();
+ return *this;
+ }
+ _glat_iterator<W> operator ++ (int) { _glat_iterator<W> tmp(*this); operator++(); return tmp; }
+
+ // This is strictly a >= operator. A true == operator could be
+ // implemented that test for overlap but it would be more expensive a
+ // test.
+ bool operator == (const _glat_iterator<W> & rhs) { return _v >= rhs._e - 1; }
+ bool operator != (const _glat_iterator<W> & rhs) { return !operator==(rhs); }
+
+ value_type operator * () const {
+ return value_type(key(), be::peek<uint16>(_v));
+ }
+
+ protected:
+ const byte * _e, * _v;
+ size_t _n;
+ };
+
+ typedef _glat_iterator<uint8> glat_iterator;
+ typedef _glat_iterator<uint16> glat2_iterator;
+}
+
+const SlantBox SlantBox::empty = {0,0,0,0};
+
+
+class GlyphCache::Loader
+{
+public:
+ Loader(const Face & face, const bool dumb_font); //return result indicates success. Do not use if failed.
+
+ operator bool () const throw();
+ unsigned short int units_per_em() const throw();
+ unsigned short int num_glyphs() const throw();
+ unsigned short int num_attrs() const throw();
+ bool has_boxes() const throw();
+
+ const GlyphFace * read_glyph(unsigned short gid, GlyphFace &, int *numsubs) const throw();
+ GlyphBox * read_box(uint16 gid, GlyphBox *curr, const GlyphFace & face) const throw();
+
+ CLASS_NEW_DELETE;
+private:
+ Face::Table _head,
+ _hhea,
+ _hmtx,
+ _glyf,
+ _loca,
+ m_pGlat,
+ m_pGloc;
+
+ bool _long_fmt;
+ bool _has_boxes;
+ unsigned short _num_glyphs_graphics, //i.e. boundary box and advance
+ _num_glyphs_attributes,
+ _num_attrs; // number of glyph attributes per glyph
+};
+
+
+
+GlyphCache::GlyphCache(const Face & face, const uint32 face_options)
+: _glyph_loader(new Loader(face, bool(face_options & gr_face_dumbRendering))),
+ _glyphs(_glyph_loader && *_glyph_loader && _glyph_loader->num_glyphs()
+ ? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0),
+ _boxes(_glyph_loader && _glyph_loader->has_boxes() && _glyph_loader->num_glyphs()
+ ? grzeroalloc<GlyphBox *>(_glyph_loader->num_glyphs()) : 0),
+ _num_glyphs(_glyphs ? _glyph_loader->num_glyphs() : 0),
+ _num_attrs(_glyphs ? _glyph_loader->num_attrs() : 0),
+ _upem(_glyphs ? _glyph_loader->units_per_em() : 0)
+{
+ if ((face_options & gr_face_preloadGlyphs) && _glyph_loader && _glyphs)
+ {
+ int numsubs = 0;
+ GlyphFace * const glyphs = new GlyphFace [_num_glyphs];
+ if (!glyphs)
+ return;
+
+ // The 0 glyph is definately required.
+ _glyphs[0] = _glyph_loader->read_glyph(0, glyphs[0], &numsubs);
+
+ // glyphs[0] has the same address as the glyphs array just allocated,
+ // thus assigning the &glyphs[0] to _glyphs[0] means _glyphs[0] points
+ // to the entire array.
+ const GlyphFace * loaded = _glyphs[0];
+ for (uint16 gid = 1; loaded && gid != _num_glyphs; ++gid)
+ _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid], &numsubs);
+
+ if (!loaded)
+ {
+ _glyphs[0] = 0;
+ delete [] glyphs;
+ }
+ else if (numsubs > 0 && _boxes)
+ {
+ GlyphBox * boxes = (GlyphBox *)gralloc<char>(_num_glyphs * sizeof(GlyphBox) + numsubs * 8 * sizeof(float));
+ GlyphBox * currbox = boxes;
+
+ for (uint16 gid = 0; currbox && gid != _num_glyphs; ++gid)
+ {
+ _boxes[gid] = currbox;
+ currbox = _glyph_loader->read_box(gid, currbox, *_glyphs[gid]);
+ }
+ if (!currbox)
+ {
+ free(boxes);
+ _boxes[0] = 0;
+ }
+ }
+ delete _glyph_loader;
+ _glyph_loader = 0;
+ }
+
+ if (_glyphs && glyph(0) == 0)
+ {
+ free(_glyphs);
+ _glyphs = 0;
+ if (_boxes)
+ {
+ free(_boxes);
+ _boxes = 0;
+ }
+ _num_glyphs = _num_attrs = _upem = 0;
+ }
+}
+
+
+GlyphCache::~GlyphCache()
+{
+ if (_glyphs)
+ {
+ if (_glyph_loader)
+ {
+ const GlyphFace * * g = _glyphs;
+ for(unsigned short n = _num_glyphs; n; --n, ++g)
+ delete *g;
+ }
+ else
+ delete [] _glyphs[0];
+ free(_glyphs);
+ }
+ if (_boxes)
+ {
+ if (_glyph_loader)
+ {
+ GlyphBox * * g = _boxes;
+ for (uint16 n = _num_glyphs; n; --n, ++g)
+ free(*g);
+ }
+ else
+ free(_boxes[0]);
+ free(_boxes);
+ }
+ delete _glyph_loader;
+}
+
+const GlyphFace *GlyphCache::glyph(unsigned short glyphid) const //result may be changed by subsequent call with a different glyphid
+{
+ if (glyphid >= numGlyphs())
+ return _glyphs[0];
+ const GlyphFace * & p = _glyphs[glyphid];
+ if (p == 0 && _glyph_loader)
+ {
+ int numsubs = 0;
+ GlyphFace * g = new GlyphFace();
+ if (g) p = _glyph_loader->read_glyph(glyphid, *g, &numsubs);
+ if (!p)
+ {
+ delete g;
+ return *_glyphs;
+ }
+ if (_boxes)
+ {
+ _boxes[glyphid] = (GlyphBox *)gralloc<char>(sizeof(GlyphBox) + 8 * numsubs * sizeof(float));
+ if (!_glyph_loader->read_box(glyphid, _boxes[glyphid], *_glyphs[glyphid]))
+ {
+ free(_boxes[glyphid]);
+ _boxes[glyphid] = 0;
+ }
+ }
+ }
+ return p;
+}
+
+
+
+GlyphCache::Loader::Loader(const Face & face, const bool dumb_font)
+: _head(face, Tag::head),
+ _hhea(face, Tag::hhea),
+ _hmtx(face, Tag::hmtx),
+ _glyf(face, Tag::glyf),
+ _loca(face, Tag::loca),
+ _long_fmt(false),
+ _has_boxes(false),
+ _num_glyphs_graphics(0),
+ _num_glyphs_attributes(0),
+ _num_attrs(0)
+{
+ if (!operator bool())
+ return;
+
+ const Face::Table maxp = Face::Table(face, Tag::maxp);
+ if (!maxp) { _head = Face::Table(); return; }
+
+ _num_glyphs_graphics = TtfUtil::GlyphCount(maxp);
+ // This will fail if the number of glyphs is wildly out of range.
+ if (_glyf && TtfUtil::LocaLookup(_num_glyphs_graphics-1, _loca, _loca.size(), _head) == size_t(-2))
+ {
+ _head = Face::Table();
+ return;
+ }
+
+ if (!dumb_font)
+ {
+ if ((m_pGlat = Face::Table(face, Tag::Glat, 0x00030000)) == NULL
+ || (m_pGloc = Face::Table(face, Tag::Gloc)) == NULL
+ || m_pGloc.size() < 8)
+ {
+ _head = Face::Table();
+ return;
+ }
+ const byte * p = m_pGloc;
+ int version = be::read<uint32>(p);
+ const uint16 flags = be::read<uint16>(p);
+ _num_attrs = be::read<uint16>(p);
+ // We can accurately calculate the number of attributed glyphs by
+ // subtracting the length of the attribids array (numAttribs long if present)
+ // and dividing by either 2 or 4 depending on shor or lonf format
+ _long_fmt = flags & 1;
+ int tmpnumgattrs = (m_pGloc.size()
+ - (p - m_pGloc)
+ - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0))
+ / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1;
+
+ if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535
+ || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate?
+ || _num_glyphs_graphics > tmpnumgattrs
+ || m_pGlat.size() < 4)
+ {
+ _head = Face::Table();
+ return;
+ }
+
+ _num_glyphs_attributes = static_cast<unsigned short>(tmpnumgattrs);
+ p = m_pGlat;
+ version = be::read<uint32>(p);
+ if (version >= 0x00040000 || (version >= 0x00030000 && m_pGlat.size() < 8)) // reject Glat tables that are too new
+ {
+ _head = Face::Table();
+ return;
+ }
+ else if (version >= 0x00030000)
+ {
+ unsigned int glatflags = be::read<uint32>(p);
+ _has_boxes = glatflags & 1;
+ // delete this once the compiler is fixed
+ _has_boxes = true;
+ }
+ }
+}
+
+inline
+GlyphCache::Loader::operator bool () const throw()
+{
+ return _head && _hhea && _hmtx && !(bool(_glyf) != bool(_loca));
+}
+
+inline
+unsigned short int GlyphCache::Loader::units_per_em() const throw()
+{
+ return _head ? TtfUtil::DesignUnits(_head) : 0;
+}
+
+inline
+unsigned short int GlyphCache::Loader::num_glyphs() const throw()
+{
+ return max(_num_glyphs_graphics, _num_glyphs_attributes);
+}
+
+inline
+unsigned short int GlyphCache::Loader::num_attrs() const throw()
+{
+ return _num_attrs;
+}
+
+inline
+bool GlyphCache::Loader::has_boxes () const throw()
+{
+ return _has_boxes;
+}
+
+const GlyphFace * GlyphCache::Loader::read_glyph(unsigned short glyphid, GlyphFace & glyph, int *numsubs) const throw()
+{
+ Rect bbox;
+ Position advance;
+
+ if (glyphid < _num_glyphs_graphics)
+ {
+ int nLsb;
+ unsigned int nAdvWid;
+ if (_glyf)
+ {
+ int xMin, yMin, xMax, yMax;
+ size_t locidx = TtfUtil::LocaLookup(glyphid, _loca, _loca.size(), _head);
+ void *pGlyph = TtfUtil::GlyfLookup(_glyf, locidx, _glyf.size());
+
+ if (pGlyph && TtfUtil::GlyfBox(pGlyph, xMin, yMin, xMax, yMax))
+ {
+ if ((xMin > xMax) || (yMin > yMax))
+ return 0;
+ bbox = Rect(Position(static_cast<float>(xMin), static_cast<float>(yMin)),
+ Position(static_cast<float>(xMax), static_cast<float>(yMax)));
+ }
+ }
+ if (TtfUtil::HorMetrics(glyphid, _hmtx, _hmtx.size(), _hhea, nLsb, nAdvWid))
+ advance = Position(static_cast<float>(nAdvWid), 0);
+ }
+
+ if (glyphid < _num_glyphs_attributes)
+ {
+ const byte * gloc = m_pGloc;
+ size_t glocs = 0, gloce = 0;
+
+ be::skip<uint32>(gloc);
+ be::skip<uint16>(gloc,2);
+ if (_long_fmt)
+ {
+ if (8 + glyphid * sizeof(uint32) > m_pGloc.size())
+ return 0;
+ be::skip<uint32>(gloc, glyphid);
+ glocs = be::read<uint32>(gloc);
+ gloce = be::peek<uint32>(gloc);
+ }
+ else
+ {
+ if (8 + glyphid * sizeof(uint16) > m_pGloc.size())
+ return 0;
+ be::skip<uint16>(gloc, glyphid);
+ glocs = be::read<uint16>(gloc);
+ gloce = be::peek<uint16>(gloc);
+ }
+
+ if (glocs >= m_pGlat.size() - 1 || gloce > m_pGlat.size())
+ return 0;
+
+ const uint32 glat_version = be::peek<uint32>(m_pGlat);
+ if (glat_version >= 0x00030000)
+ {
+ if (glocs >= gloce)
+ return 0;
+ const byte * p = m_pGlat + glocs;
+ uint16 bmap = be::read<uint16>(p);
+ int num = bit_set_count((uint32)bmap);
+ if (numsubs) *numsubs += num;
+ glocs += 6 + 8 * num;
+ if (glocs > gloce)
+ return 0;
+ }
+ if (glat_version < 0x00020000)
+ {
+ if (gloce - glocs < 2*sizeof(byte)+sizeof(uint16)
+ || gloce - glocs > _num_attrs*(2*sizeof(byte)+sizeof(uint16)))
+ return 0;
+ new (&glyph) GlyphFace(bbox, advance, glat_iterator(m_pGlat + glocs), glat_iterator(m_pGlat + gloce));
+ }
+ else
+ {
+ if (gloce - glocs < 3*sizeof(uint16) // can a glyph have no attributes? why not?
+ || gloce - glocs > _num_attrs*3*sizeof(uint16)
+ || glocs > m_pGlat.size() - 2*sizeof(uint16))
+ return 0;
+ new (&glyph) GlyphFace(bbox, advance, glat2_iterator(m_pGlat + glocs), glat2_iterator(m_pGlat + gloce));
+ }
+ if (!glyph.attrs() || glyph.attrs().capacity() > _num_attrs)
+ return 0;
+ }
+ return &glyph;
+}
+
+inline float scale_to(uint8 t, float zmin, float zmax)
+{
+ return (zmin + t * (zmax - zmin) / 255);
+}
+
+Rect readbox(Rect &b, uint8 zxmin, uint8 zymin, uint8 zxmax, uint8 zymax)
+{
+ return Rect(Position(scale_to(zxmin, b.bl.x, b.tr.x), scale_to(zymin, b.bl.y, b.tr.y)),
+ Position(scale_to(zxmax, b.bl.x, b.tr.x), scale_to(zymax, b.bl.y, b.tr.y)));
+}
+
+GlyphBox * GlyphCache::Loader::read_box(uint16 gid, GlyphBox *curr, const GlyphFace & glyph) const throw()
+{
+ if (gid >= _num_glyphs_attributes) return 0;
+
+ const byte * gloc = m_pGloc;
+ size_t glocs = 0, gloce = 0;
+
+ be::skip<uint32>(gloc);
+ be::skip<uint16>(gloc,2);
+ if (_long_fmt)
+ {
+ be::skip<uint32>(gloc, gid);
+ glocs = be::read<uint32>(gloc);
+ gloce = be::peek<uint32>(gloc);
+ }
+ else
+ {
+ be::skip<uint16>(gloc, gid);
+ glocs = be::read<uint16>(gloc);
+ gloce = be::peek<uint16>(gloc);
+ }
+
+ if (gloce > m_pGlat.size() || glocs + 6 >= gloce)
+ return 0;
+
+ const byte * p = m_pGlat + glocs;
+ uint16 bmap = be::read<uint16>(p);
+ int num = bit_set_count((uint32)bmap);
+
+ Rect bbox = glyph.theBBox();
+ Rect diamax(Position(bbox.bl.x + bbox.bl.y, bbox.bl.x - bbox.tr.y),
+ Position(bbox.tr.x + bbox.tr.y, bbox.tr.x - bbox.bl.y));
+ Rect diabound = readbox(diamax, p[0], p[2], p[1], p[3]);
+ ::new (curr) GlyphBox(num, bmap, &diabound);
+ be::skip<uint8>(p, 4);
+ if (glocs + 6 + num * 8 >= gloce)
+ return 0;
+
+ for (int i = 0; i < num * 2; ++i)
+ {
+ Rect box = readbox((i & 1) ? diamax : bbox, p[0], p[2], p[1], p[3]);
+ curr->addSubBox(i >> 1, i & 1, &box);
+ be::skip<uint8>(p, 4);
+ }
+ return (GlyphBox *)((char *)(curr) + sizeof(GlyphBox) + 2 * num * sizeof(Rect));
+}
+
diff --git a/gfx/graphite2/src/GlyphFace.cpp b/gfx/graphite2/src/GlyphFace.cpp
new file mode 100644
index 000000000..ce17e42bd
--- /dev/null
+++ b/gfx/graphite2/src/GlyphFace.cpp
@@ -0,0 +1,48 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/GlyphFace.h"
+
+
+using namespace graphite2;
+
+int32 GlyphFace::getMetric(uint8 metric) const
+{
+ switch (metrics(metric))
+ {
+ case kgmetLsb : return m_bbox.bl.x;
+ case kgmetRsb : return m_advance.x - m_bbox.tr.x;
+ case kgmetBbTop : return m_bbox.tr.y;
+ case kgmetBbBottom : return m_bbox.bl.y;
+ case kgmetBbLeft : return m_bbox.bl.x;
+ case kgmetBbRight : return m_bbox.tr.x;
+ case kgmetBbHeight : return m_bbox.tr.y - m_bbox.bl.y;
+ case kgmetBbWidth : return m_bbox.tr.x - m_bbox.bl.x;
+ case kgmetAdvWidth : return m_advance.x;
+ case kgmetAdvHeight : return m_advance.y;
+ default : return 0;
+ }
+}
diff --git a/gfx/graphite2/src/GlyphFaceCache.cpp b/gfx/graphite2/src/GlyphFaceCache.cpp
new file mode 100644
index 000000000..9abb1aa9d
--- /dev/null
+++ b/gfx/graphite2/src/GlyphFaceCache.cpp
@@ -0,0 +1,149 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/GlyphFaceCache.h"
+#include "graphite2/Font.h"
+#include "inc/Face.h" //for the tags
+#include "inc/Endian.h"
+
+using namespace graphite2;
+
+/*virtual*/ bool GlyphFaceCacheHeader::initialize(const Face & face, const bool dumb_font) //return result indicates success. Do not use if failed.
+{
+ if ((m_pLoca = face.getTable(Tag::loca, &m_lLoca)) == NULL) return false;
+ if ((m_pHead = face.getTable(Tag::head)) == NULL) return false;
+ if ((m_pGlyf = face.getTable(Tag::glyf, &m_lGlyf)) == NULL) return false;
+ if ((m_pHmtx = face.getTable(Tag::hmtx, &m_lHmtx)) == NULL) return false;
+ if ((m_pHHea = face.getTable(Tag::hhea)) == NULL) return false;
+
+ const void* pMaxp = face.getTable(Tag::maxp);
+ if (pMaxp == NULL) return false;
+ m_nGlyphs = m_nGlyphsWithGraphics = (unsigned short)TtfUtil::GlyphCount(pMaxp);
+ if (TtfUtil::LocaLookup(m_nGlyphs-1, m_pLoca, m_lLoca, m_pHead) == size_t(-1))
+ return false; // This will fail if m_nGlyphs is wildly out of range.
+
+ if (!dumb_font)
+ {
+ if ((m_pGlat = face.getTable(Tag::Glat, &m_lGlat)) == NULL) return false;
+ m_fGlat = be::peek<uint32>(m_pGlat);
+ size_t lGloc;
+ if ((m_pGloc = face.getTable(Tag::Gloc, &lGloc)) == NULL) return false;
+ if (lGloc < 6) return false;
+ int version = be::read<uint32>(m_pGloc);
+ if (version != 0x00010000) return false;
+
+ const uint16 locFlags = be::read<uint16>(m_pGloc);
+ m_numAttrs = be::read<uint16>(m_pGloc);
+ if (m_numAttrs > 0x1000) return false; // is this hard limit appropriate?
+
+ if (locFlags & 1)
+ {
+ m_locFlagsUse32Bit = true;
+ m_nGlyphsWithAttributes = (unsigned short)((lGloc - 12) / 4);
+ }
+ else
+ {
+ m_locFlagsUse32Bit = false;
+ m_nGlyphsWithAttributes = (unsigned short)((lGloc - 10) / 2);
+ }
+
+ if (m_nGlyphsWithAttributes > m_nGlyphs)
+ m_nGlyphs = m_nGlyphsWithAttributes;
+ }
+
+ return true;
+}
+
+GlyphFaceCache* GlyphFaceCache::makeCache(const GlyphFaceCacheHeader& hdr)
+{
+ return new (hdr) GlyphFaceCache(hdr);
+}
+
+GlyphFaceCache::GlyphFaceCache(const GlyphFaceCacheHeader& hdr)
+: GlyphFaceCacheHeader(hdr)
+{
+ unsigned int nGlyphs = numGlyphs();
+
+ for (unsigned int i = 0; i < nGlyphs; i++)
+ {
+ *glyphPtrDirect(i) = NULL;
+ }
+}
+
+GlyphFaceCache::~GlyphFaceCache()
+{
+ unsigned int nGlyphs = numGlyphs();
+ int deltaPointers = (*glyphPtrDirect(nGlyphs-1u) - *glyphPtrDirect(0u));
+ if ((nGlyphs > 0u) && (deltaPointers == static_cast<int>(nGlyphs - 1)))
+ {
+ for (unsigned int i=0 ; i<nGlyphs; ++i)
+ {
+ GlyphFace *p = *glyphPtrDirect(i);
+ assert (p);
+ p->~GlyphFace();
+ }
+ free (*glyphPtrDirect(0));
+ }
+ else
+ {
+ for (unsigned int i=0 ; i<nGlyphs; ++i)
+ {
+ GlyphFace *p = *glyphPtrDirect(i);
+ if (p)
+ {
+ p->~GlyphFace();
+ free(p);
+ }
+ }
+ }
+}
+
+void GlyphFaceCache::loadAllGlyphs()
+{
+ unsigned int nGlyphs = numGlyphs();
+// size_t sparse_size = 0;
+ GlyphFace * glyphs = gralloc<GlyphFace>(nGlyphs);
+ for (unsigned short glyphid = 0; glyphid < nGlyphs; glyphid++)
+ {
+ GlyphFace **p = glyphPtrDirect(glyphid);
+ *p = &(glyphs[glyphid]);
+ new(*p) GlyphFace(*this, glyphid);
+// sparse_size += (*p)->m_attrs._sizeof();
+ }
+// const size_t flat_size = nGlyphs*(sizeof(uint16*) + sizeof(uint16)*numAttrs());
+// assert(sparse_size <= flat_size);
+}
+
+/*virtual*/ const GlyphFace *GlyphFaceCache::glyph(unsigned short glyphid) const //result may be changed by subsequent call with a different glyphid
+{
+ GlyphFace **p = glyphPtrDirect(glyphid);
+ if (*p)
+ return *p;
+
+ *p = (GlyphFace*)malloc(sizeof(GlyphFace));
+ new(*p) GlyphFace(*this, glyphid);
+ return *p;
+}
diff --git a/gfx/graphite2/src/Intervals.cpp b/gfx/graphite2/src/Intervals.cpp
new file mode 100644
index 000000000..9b1da5a1b
--- /dev/null
+++ b/gfx/graphite2/src/Intervals.cpp
@@ -0,0 +1,299 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <algorithm>
+#include <cmath>
+#include <limits>
+
+#include "inc/Intervals.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/debug.h"
+#include "inc/bits.h"
+
+using namespace graphite2;
+
+#include <cmath>
+
+inline
+Zones::Exclusion Zones::Exclusion::split_at(float p) {
+ Exclusion r(*this);
+ r.xm = x = p;
+ return r;
+}
+
+inline
+void Zones::Exclusion::left_trim(float p) {
+ x = p;
+}
+
+inline
+Zones::Exclusion & Zones::Exclusion::operator += (Exclusion const & rhs) {
+ c += rhs.c; sm += rhs.sm; smx += rhs.smx; open = false;
+ return *this;
+}
+
+inline
+uint8 Zones::Exclusion::outcode(float val) const {
+ float p = val;
+ //float d = std::numeric_limits<float>::epsilon();
+ float d = 0.;
+ return ((p - xm >= d) << 1) | (x - p > d);
+}
+
+void Zones::exclude_with_margins(float xmin, float xmax, int axis) {
+ remove(xmin, xmax);
+ weightedAxis(axis, xmin-_margin_len, xmin, 0, 0, _margin_weight, xmin-_margin_len, 0, 0, false);
+ weightedAxis(axis, xmax, xmax+_margin_len, 0, 0, _margin_weight, xmax+_margin_len, 0, 0, false);
+}
+
+namespace
+{
+
+inline
+bool separated(float a, float b) {
+ return a != b;
+ //int exp;
+ //float res = frexpf(fabs(a - b), &exp);
+ //return (*(unsigned int *)(&res) > 4);
+ //return std::fabs(a-b) > std::numeric_limits<float>::epsilon(); // std::epsilon may not work. but 0.5 fails exising 64 bit tests
+ //return std::fabs(a-b) > 0.5f;
+}
+
+}
+
+void Zones::insert(Exclusion e)
+{
+#if !defined GRAPHITE2_NTRACING
+ addDebug(&e);
+#endif
+ e.x = max(e.x, _pos);
+ e.xm = min(e.xm, _posm);
+ if (e.x >= e.xm) return;
+
+ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie && e.x < e.xm; ++i)
+ {
+ const uint8 oca = e.outcode(i->x),
+ ocb = e.outcode(i->xm);
+ if ((oca & ocb) != 0) continue;
+
+ switch (oca ^ ocb) // What kind of overlap?
+ {
+ case 0: // e completely covers i
+ // split e at i.x into e1,e2
+ // split e2 at i.mx into e2,e3
+ // drop e1 ,i+e2, e=e3
+ *i += e;
+ e.left_trim(i->xm);
+ break;
+ case 1: // e overlaps on the rhs of i
+ // split i at e->x into i1,i2
+ // split e at i.mx into e1,e2
+ // trim i1, insert i2+e1, e=e2
+ if (!separated(i->xm, e.x)) break;
+ if (separated(i->x,e.x)) { i = _exclusions.insert(i,i->split_at(e.x)); ++i; }
+ *i += e;
+ e.left_trim(i->xm);
+ break;
+ case 2: // e overlaps on the lhs of i
+ // split e at i->x into e1,e2
+ // split i at e.mx into i1,i2
+ // drop e1, insert e2+i1, trim i2
+ if (!separated(e.xm, i->x)) return;
+ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm));
+ *i += e;
+ return;
+ case 3: // i completely covers e
+ // split i at e.x into i1,i2
+ // split i2 at e.mx into i2,i3
+ // insert i1, insert e+i2
+ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm));
+ i = _exclusions.insert(i, i->split_at(e.x));
+ *++i += e;
+ return;
+ }
+
+ ie = _exclusions.end();
+ }
+}
+
+
+void Zones::remove(float x, float xm)
+{
+#if !defined GRAPHITE2_NTRACING
+ removeDebug(x, xm);
+#endif
+ x = max(x, _pos);
+ xm = min(xm, _posm);
+ if (x >= xm) return;
+
+ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie; ++i)
+ {
+ const uint8 oca = i->outcode(x),
+ ocb = i->outcode(xm);
+ if ((oca & ocb) != 0) continue;
+
+ switch (oca ^ ocb) // What kind of overlap?
+ {
+ case 0: // i completely covers e
+ if (separated(i->x, x)) { i = _exclusions.insert(i,i->split_at(x)); ++i; }
+ GR_FALLTHROUGH;
+ // no break
+ case 1: // i overlaps on the rhs of e
+ i->left_trim(xm);
+ return;
+ case 2: // i overlaps on the lhs of e
+ i->xm = x;
+ if (separated(i->x, i->xm)) break;
+ GR_FALLTHROUGH;
+ // no break
+ case 3: // e completely covers i
+ i = _exclusions.erase(i);
+ --i;
+ break;
+ }
+
+ ie = _exclusions.end();
+ }
+}
+
+
+Zones::const_iterator Zones::find_exclusion_under(float x) const
+{
+ int l = 0, h = _exclusions.size();
+
+ while (l < h)
+ {
+ int const p = (l+h) >> 1;
+ switch (_exclusions[p].outcode(x))
+ {
+ case 0 : return _exclusions.begin()+p;
+ case 1 : h = p; break;
+ case 2 :
+ case 3 : l = p+1; break;
+ }
+ }
+
+ return _exclusions.begin()+l;
+}
+
+
+float Zones::closest(float origin, float & cost) const
+{
+ float best_c = std::numeric_limits<float>::max(),
+ best_x = 0;
+
+ const const_iterator start = find_exclusion_under(origin);
+
+ // Forward scan looking for lowest cost
+ for (const_iterator i = start, ie = _exclusions.end(); i != ie; ++i)
+ if (i->track_cost(best_c, best_x, origin)) break;
+
+ // Backward scan looking for lowest cost
+ // We start from the exclusion to the immediate left of start since we've
+ // already tested start with the right most scan above.
+ for (const_iterator i = start-1, ie = _exclusions.begin()-1; i != ie; --i)
+ if (i->track_cost(best_c, best_x, origin)) break;
+
+ cost = (best_c == std::numeric_limits<float>::max() ? -1 : best_c);
+ return best_x;
+}
+
+
+// Cost and test position functions
+
+bool Zones::Exclusion::track_cost(float & best_cost, float & best_pos, float origin) const {
+ const float p = test_position(origin),
+ localc = cost(p - origin);
+ if (open && localc > best_cost) return true;
+
+ if (localc < best_cost)
+ {
+ best_cost = localc;
+ best_pos = p;
+ }
+ return false;
+}
+
+inline
+float Zones::Exclusion::cost(float p) const {
+ return (sm * p - 2 * smx) * p + c;
+}
+
+
+float Zones::Exclusion::test_position(float origin) const {
+ if (sm < 0)
+ {
+ // sigh, test both ends and perhaps the middle too!
+ float res = x;
+ float cl = cost(x);
+ if (x < origin && xm > origin)
+ {
+ float co = cost(origin);
+ if (co < cl)
+ {
+ cl = co;
+ res = origin;
+ }
+ }
+ float cr = cost(xm);
+ return cl > cr ? xm : res;
+ }
+ else
+ {
+ float zerox = smx / sm + origin;
+ if (zerox < x) return x;
+ else if (zerox > xm) return xm;
+ else return zerox;
+ }
+}
+
+
+#if !defined GRAPHITE2_NTRACING
+
+void Zones::jsonDbgOut(Segment *seg) const {
+
+ if (_dbg)
+ {
+ for (Zones::idebugs s = dbgs_begin(), e = dbgs_end(); s != e; ++s)
+ {
+ *_dbg << json::flat << json::array
+ << objectid(dslot(seg, (Slot *)(s->_env[0])))
+ << reinterpret_cast<ptrdiff_t>(s->_env[1]);
+ if (s->_isdel)
+ *_dbg << "remove" << Position(s->_excl.x, s->_excl.xm);
+ else
+ *_dbg << "exclude" << json::flat << json::array
+ << s->_excl.x << s->_excl.xm
+ << s->_excl.sm << s->_excl.smx << s->_excl.c
+ << json::close;
+ *_dbg << json::close;
+ }
+ }
+}
+
+#endif
+
diff --git a/gfx/graphite2/src/Justifier.cpp b/gfx/graphite2/src/Justifier.cpp
new file mode 100644
index 000000000..f8a6f3bbe
--- /dev/null
+++ b/gfx/graphite2/src/Justifier.cpp
@@ -0,0 +1,280 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#include "inc/Segment.h"
+#include "graphite2/Font.h"
+#include "inc/debug.h"
+#include "inc/CharInfo.h"
+#include "inc/Slot.h"
+#include "inc/Main.h"
+#include <cmath>
+
+using namespace graphite2;
+
+class JustifyTotal {
+public:
+ JustifyTotal() : m_numGlyphs(0), m_tStretch(0), m_tShrink(0), m_tStep(0), m_tWeight(0) {}
+ void accumulate(Slot *s, Segment *seg, int level);
+ int weight() const { return m_tWeight; }
+
+ CLASS_NEW_DELETE
+
+private:
+ int m_numGlyphs;
+ int m_tStretch;
+ int m_tShrink;
+ int m_tStep;
+ int m_tWeight;
+};
+
+void JustifyTotal::accumulate(Slot *s, Segment *seg, int level)
+{
+ ++m_numGlyphs;
+ m_tStretch += s->getJustify(seg, level, 0);
+ m_tShrink += s->getJustify(seg, level, 1);
+ m_tStep += s->getJustify(seg, level, 2);
+ m_tWeight += s->getJustify(seg, level, 3);
+}
+
+float Segment::justify(Slot *pSlot, const Font *font, float width, GR_MAYBE_UNUSED justFlags jflags, Slot *pFirst, Slot *pLast)
+{
+ Slot *s, *end;
+ float currWidth = 0.0;
+ const float scale = font ? font->scale() : 1.0f;
+ Position res;
+
+ if (width < 0 && !(silf()->flags()))
+ return width;
+
+ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses())
+ {
+ reverseSlots();
+ s = pFirst;
+ pFirst = pLast;
+ pLast = s;
+ }
+ if (!pFirst) pFirst = pSlot;
+ while (!pFirst->isBase()) pFirst = pFirst->attachedTo();
+ if (!pLast) pLast = last();
+ while (!pLast->isBase()) pLast = pLast->attachedTo();
+ const float base = pFirst->origin().x / scale;
+ width = width / scale;
+ if ((jflags & gr_justEndInline) == 0)
+ {
+ do {
+ Rect bbox = theGlyphBBoxTemporary(pLast->glyph());
+ if (bbox.bl.x != 0.f || bbox.bl.y != 0.f || bbox.tr.x != 0.f || bbox.tr.y == 0.f)
+ break;
+ pLast = pLast->prev();
+ } while (pLast != pFirst);
+ }
+
+ end = pLast->nextSibling();
+ pFirst = pFirst->nextSibling();
+
+ int icount = 0;
+ int numLevels = silf()->numJustLevels();
+ if (!numLevels)
+ {
+ for (s = pSlot; s && s != end; s = s->nextSibling())
+ {
+ CharInfo *c = charinfo(s->before());
+ if (isWhitespace(c->unicodeChar()))
+ {
+ s->setJustify(this, 0, 3, 1);
+ s->setJustify(this, 0, 2, 1);
+ s->setJustify(this, 0, 0, -1);
+ ++icount;
+ }
+ }
+ if (!icount)
+ {
+ for (s = pSlot; s && s != end; s = s->nextSibling())
+ {
+ s->setJustify(this, 0, 3, 1);
+ s->setJustify(this, 0, 2, 1);
+ s->setJustify(this, 0, 0, -1);
+ }
+ }
+ ++numLevels;
+ }
+
+ Vector<JustifyTotal> stats(numLevels);
+ for (s = pFirst; s && s != end; s = s->nextSibling())
+ {
+ float w = s->origin().x / scale + s->advance() - base;
+ if (w > currWidth) currWidth = w;
+ for (int j = 0; j < numLevels; ++j)
+ stats[j].accumulate(s, this, j);
+ s->just(0);
+ }
+
+ for (int i = (width < 0.0f) ? -1 : numLevels - 1; i >= 0; --i)
+ {
+ float diff;
+ float error = 0.;
+ float diffpw;
+ int tWeight = stats[i].weight();
+ if (tWeight == 0) continue;
+
+ do {
+ error = 0.;
+ diff = width - currWidth;
+ diffpw = diff / tWeight;
+ tWeight = 0;
+ for (s = pFirst; s && s != end; s = s->nextSibling()) // don't include final glyph
+ {
+ int w = s->getJustify(this, i, 3);
+ float pref = diffpw * w + error;
+ int step = s->getJustify(this, i, 2);
+ if (!step) step = 1; // handle lazy font developers
+ if (pref > 0)
+ {
+ float max = uint16(s->getJustify(this, i, 0));
+ if (i == 0) max -= s->just();
+ if (pref > max) pref = max;
+ else tWeight += w;
+ }
+ else
+ {
+ float max = uint16(s->getJustify(this, i, 1));
+ if (i == 0) max += s->just();
+ if (-pref > max) pref = -max;
+ else tWeight += w;
+ }
+ int actual = int(pref / step) * step;
+
+ if (actual)
+ {
+ error += diffpw * w - actual;
+ if (i == 0)
+ s->just(s->just() + actual);
+ else
+ s->setJustify(this, i, 4, actual);
+ }
+ }
+ currWidth += diff - error;
+ } while (i == 0 && int(std::abs(error)) > 0 && tWeight);
+ }
+
+ Slot *oldFirst = m_first;
+ Slot *oldLast = m_last;
+ if (silf()->flags() & 1)
+ {
+ m_first = pSlot = addLineEnd(pSlot);
+ m_last = pLast = addLineEnd(end);
+ if (!m_first || !m_last) return -1.0;
+ }
+ else
+ {
+ m_first = pSlot;
+ m_last = pLast;
+ }
+
+ // run justification passes here
+#if !defined GRAPHITE2_NTRACING
+ json * const dbgout = m_face->logger();
+ if (dbgout)
+ *dbgout << json::object
+ << "justifies" << objectid(this)
+ << "passes" << json::array;
+#endif
+
+ if (m_silf->justificationPass() != m_silf->positionPass() && (width >= 0.f || (silf()->flags() & 1)))
+ m_silf->runGraphite(this, m_silf->justificationPass(), m_silf->positionPass());
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ {
+ *dbgout << json::item << json::close; // Close up the passes array
+ positionSlots(NULL, pSlot, pLast, m_dir);
+ Slot *lEnd = pLast->nextSibling();
+ *dbgout << "output" << json::array;
+ for(Slot * t = pSlot; t != lEnd; t = t->next())
+ *dbgout << dslot(this, t);
+ *dbgout << json::close << json::close;
+ }
+#endif
+
+ res = positionSlots(font, pSlot, pLast, m_dir);
+
+ if (silf()->flags() & 1)
+ {
+ delLineEnd(m_first);
+ delLineEnd(m_last);
+ }
+ m_first = oldFirst;
+ m_last = oldLast;
+
+ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses())
+ reverseSlots();
+ return res.x;
+}
+
+Slot *Segment::addLineEnd(Slot *nSlot)
+{
+ Slot *eSlot = newSlot();
+ if (!eSlot) return NULL;
+ const uint16 gid = silf()->endLineGlyphid();
+ const GlyphFace * theGlyph = m_face->glyphs().glyphSafe(gid);
+ eSlot->setGlyph(this, gid, theGlyph);
+ if (nSlot)
+ {
+ eSlot->next(nSlot);
+ eSlot->prev(nSlot->prev());
+ nSlot->prev(eSlot);
+ eSlot->before(nSlot->before());
+ if (eSlot->prev())
+ eSlot->after(eSlot->prev()->after());
+ else
+ eSlot->after(nSlot->before());
+ }
+ else
+ {
+ nSlot = m_last;
+ eSlot->prev(nSlot);
+ nSlot->next(eSlot);
+ eSlot->after(eSlot->prev()->after());
+ eSlot->before(nSlot->after());
+ }
+ return eSlot;
+}
+
+void Segment::delLineEnd(Slot *s)
+{
+ Slot *nSlot = s->next();
+ if (nSlot)
+ {
+ nSlot->prev(s->prev());
+ if (s->prev())
+ s->prev()->next(nSlot);
+ }
+ else
+ s->prev()->next(NULL);
+ freeSlot(s);
+}
+
diff --git a/gfx/graphite2/src/MozGrMalloc.h b/gfx/graphite2/src/MozGrMalloc.h
new file mode 100644
index 000000000..acaae1236
--- /dev/null
+++ b/gfx/graphite2/src/MozGrMalloc.h
@@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef MOZ_GR_MALLOC_H
+#define MOZ_GR_MALLOC_H
+
+// Override malloc() and friends to call moz_xmalloc() etc, so that we get
+// predictable, safe OOM crashes rather than relying on the code to handle
+// allocation failures reliably.
+
+#include "mozilla/mozalloc.h"
+
+#define malloc moz_xmalloc
+#define calloc moz_xcalloc
+#define realloc moz_xrealloc
+
+#endif // MOZ_GR_MALLOC_H
diff --git a/gfx/graphite2/src/NameTable.cpp b/gfx/graphite2/src/NameTable.cpp
new file mode 100644
index 000000000..2baa1bbdc
--- /dev/null
+++ b/gfx/graphite2/src/NameTable.cpp
@@ -0,0 +1,255 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Main.h"
+#include "inc/Endian.h"
+
+#include "inc/NameTable.h"
+#include "inc/UtfCodec.h"
+
+using namespace graphite2;
+
+NameTable::NameTable(const void* data, size_t length, uint16 platformId, uint16 encodingID)
+ : m_platformId(0), m_encodingId(0), m_languageCount(0),
+ m_platformOffset(0), m_platformLastRecord(0), m_nameDataLength(0),
+ m_table(0), m_nameData(NULL)
+{
+ void *pdata = gralloc<byte>(length);
+ if (!pdata) return;
+ memcpy(pdata, data, length);
+ m_table = reinterpret_cast<const TtfUtil::Sfnt::FontNames*>(pdata);
+
+ if ((length > sizeof(TtfUtil::Sfnt::FontNames)) &&
+ (length > sizeof(TtfUtil::Sfnt::FontNames) +
+ sizeof(TtfUtil::Sfnt::NameRecord) * ( be::swap<uint16>(m_table->count) - 1)))
+ {
+ uint16 offset = be::swap<uint16>(m_table->string_offset);
+ if (offset < length)
+ {
+ m_nameData = reinterpret_cast<const uint8*>(pdata) + offset;
+ setPlatformEncoding(platformId, encodingID);
+ m_nameDataLength = length - offset;
+ return;
+ }
+ }
+ free(const_cast<TtfUtil::Sfnt::FontNames*>(m_table));
+ m_table = NULL;
+}
+
+uint16 NameTable::setPlatformEncoding(uint16 platformId, uint16 encodingID)
+{
+ if (!m_nameData) return 0;
+ uint16 i = 0;
+ uint16 count = be::swap<uint16>(m_table->count);
+ for (; i < count; i++)
+ {
+ if (be::swap<uint16>(m_table->name_record[i].platform_id) == platformId &&
+ be::swap<uint16>(m_table->name_record[i].platform_specific_id) == encodingID)
+ {
+ m_platformOffset = i;
+ break;
+ }
+ }
+ while ((++i < count) &&
+ (be::swap<uint16>(m_table->name_record[i].platform_id) == platformId) &&
+ (be::swap<uint16>(m_table->name_record[i].platform_specific_id) == encodingID))
+ {
+ m_platformLastRecord = i;
+ }
+ m_encodingId = encodingID;
+ m_platformId = platformId;
+ return 0;
+}
+
+void* NameTable::getName(uint16& languageId, uint16 nameId, gr_encform enc, uint32& length)
+{
+ uint16 anyLang = 0;
+ uint16 enUSLang = 0;
+ uint16 bestLang = 0;
+ if (!m_table)
+ {
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ for (uint16 i = m_platformOffset; i <= m_platformLastRecord; i++)
+ {
+ if (be::swap<uint16>(m_table->name_record[i].name_id) == nameId)
+ {
+ uint16 langId = be::swap<uint16>(m_table->name_record[i].language_id);
+ if (langId == languageId)
+ {
+ bestLang = i;
+ break;
+ }
+ // MS language tags have the language in the lower byte, region in the higher
+ else if ((langId & 0xFF) == (languageId & 0xFF))
+ {
+ bestLang = i;
+ }
+ else if (langId == 0x409)
+ {
+ enUSLang = i;
+ }
+ else
+ {
+ anyLang = i;
+ }
+ }
+ }
+ if (!bestLang)
+ {
+ if (enUSLang) bestLang = enUSLang;
+ else
+ {
+ bestLang = anyLang;
+ if (!anyLang)
+ {
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ }
+ }
+ const TtfUtil::Sfnt::NameRecord & nameRecord = m_table->name_record[bestLang];
+ languageId = be::swap<uint16>(nameRecord.language_id);
+ uint16 utf16Length = be::swap<uint16>(nameRecord.length);
+ uint16 offset = be::swap<uint16>(nameRecord.offset);
+ if(offset + utf16Length > m_nameDataLength)
+ {
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ utf16Length >>= 1; // in utf16 units
+ utf16::codeunit_t * utf16Name = gralloc<utf16::codeunit_t>(utf16Length + 1);
+ if (!utf16Name)
+ {
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ const uint8* pName = m_nameData + offset;
+ for (size_t i = 0; i < utf16Length; i++)
+ {
+ utf16Name[i] = be::read<uint16>(pName);
+ }
+ utf16Name[utf16Length] = 0;
+ if (!utf16::validate(utf16Name, utf16Name + utf16Length))
+ {
+ free(utf16Name);
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ switch (enc)
+ {
+ case gr_utf8:
+ {
+ utf8::codeunit_t* uniBuffer = gralloc<utf8::codeunit_t>(3 * utf16Length + 1);
+ if (!uniBuffer)
+ {
+ free(utf16Name);
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ utf8::iterator d = uniBuffer;
+ for (utf16::const_iterator s = utf16Name, e = utf16Name + utf16Length; s != e; ++s, ++d)
+ *d = *s;
+ length = d - uniBuffer;
+ uniBuffer[length] = 0;
+ free(utf16Name);
+ return uniBuffer;
+ }
+ case gr_utf16:
+ length = utf16Length;
+ return utf16Name;
+ case gr_utf32:
+ {
+ utf32::codeunit_t * uniBuffer = gralloc<utf32::codeunit_t>(utf16Length + 1);
+ if (!uniBuffer)
+ {
+ free(utf16Name);
+ languageId = 0;
+ length = 0;
+ return NULL;
+ }
+ utf32::iterator d = uniBuffer;
+ for (utf16::const_iterator s = utf16Name, e = utf16Name + utf16Length; s != e; ++s, ++d)
+ *d = *s;
+ length = d - uniBuffer;
+ uniBuffer[length] = 0;
+ free(utf16Name);
+ return uniBuffer;
+ }
+ }
+ free(utf16Name);
+ languageId = 0;
+ length = 0;
+ return NULL;
+}
+
+uint16 NameTable::getLanguageId(const char * bcp47Locale)
+{
+ size_t localeLength = strlen(bcp47Locale);
+ uint16 localeId = m_locale2Lang.getMsId(bcp47Locale);
+ if (m_table && (be::swap<uint16>(m_table->format) == 1))
+ {
+ const uint8 * pLangEntries = reinterpret_cast<const uint8*>(m_table) +
+ sizeof(TtfUtil::Sfnt::FontNames)
+ + sizeof(TtfUtil::Sfnt::NameRecord) * ( be::swap<uint16>(m_table->count) - 1);
+ uint16 numLangEntries = be::read<uint16>(pLangEntries);
+ const TtfUtil::Sfnt::LangTagRecord * langTag =
+ reinterpret_cast<const TtfUtil::Sfnt::LangTagRecord*>(pLangEntries);
+ if (pLangEntries + numLangEntries * sizeof(TtfUtil::Sfnt::LangTagRecord) <= m_nameData)
+ {
+ for (uint16 i = 0; i < numLangEntries; i++)
+ {
+ uint16 offset = be::swap<uint16>(langTag[i].offset);
+ uint16 length = be::swap<uint16>(langTag[i].length);
+ if ((offset + length <= m_nameDataLength) && (length == 2 * localeLength))
+ {
+ const uint8* pName = m_nameData + offset;
+ bool match = true;
+ for (size_t j = 0; j < localeLength; j++)
+ {
+ uint16 code = be::read<uint16>(pName);
+ if ((code > 0x7F) || (code != bcp47Locale[j]))
+ {
+ match = false;
+ break;
+ }
+ }
+ if (match)
+ return 0x8000 + i;
+ }
+ }
+ }
+ }
+ return localeId;
+}
+
diff --git a/gfx/graphite2/src/Pass.cpp b/gfx/graphite2/src/Pass.cpp
new file mode 100644
index 000000000..683143c50
--- /dev/null
+++ b/gfx/graphite2/src/Pass.cpp
@@ -0,0 +1,1104 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Main.h"
+#include "inc/debug.h"
+#include "inc/Endian.h"
+#include "inc/Pass.h"
+#include <cstring>
+#include <cstdlib>
+#include <cassert>
+#include <cmath>
+#include "inc/Segment.h"
+#include "inc/Code.h"
+#include "inc/Rule.h"
+#include "inc/Error.h"
+#include "inc/Collider.h"
+
+using namespace graphite2;
+using vm::Machine;
+typedef Machine::Code Code;
+
+enum KernCollison
+{
+ None = 0,
+ CrossSpace = 1,
+ InWord = 2,
+ reserved = 3
+};
+
+Pass::Pass()
+: m_silf(0),
+ m_cols(0),
+ m_rules(0),
+ m_ruleMap(0),
+ m_startStates(0),
+ m_transitions(0),
+ m_states(0),
+ m_codes(0),
+ m_progs(0),
+ m_numCollRuns(0),
+ m_kernColls(0),
+ m_iMaxLoop(0),
+ m_numGlyphs(0),
+ m_numRules(0),
+ m_numStates(0),
+ m_numTransition(0),
+ m_numSuccess(0),
+ m_successStart(0),
+ m_numColumns(0),
+ m_minPreCtxt(0),
+ m_maxPreCtxt(0),
+ m_colThreshold(0),
+ m_isReverseDir(false)
+{
+}
+
+Pass::~Pass()
+{
+ free(m_cols);
+ free(m_startStates);
+ free(m_transitions);
+ free(m_states);
+ free(m_ruleMap);
+
+ if (m_rules) delete [] m_rules;
+ if (m_codes) delete [] m_codes;
+ free(m_progs);
+}
+
+bool Pass::readPass(const byte * const pass_start, size_t pass_length, size_t subtable_base,
+ GR_MAYBE_UNUSED Face & face, passtype pt, GR_MAYBE_UNUSED uint32 version, Error &e)
+{
+ const byte * p = pass_start,
+ * const pass_end = p + pass_length;
+ size_t numRanges;
+
+ if (e.test(pass_length < 40, E_BADPASSLENGTH)) return face.error(e);
+ // Read in basic values
+ const byte flags = be::read<byte>(p);
+ if (e.test((flags & 0x1f) &&
+ (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes() || !(m_silf->flags() & 0x20)),
+ E_BADCOLLISIONPASS))
+ return face.error(e);
+ m_numCollRuns = flags & 0x7;
+ m_kernColls = (flags >> 3) & 0x3;
+ m_isReverseDir = (flags >> 5) & 0x1;
+ m_iMaxLoop = be::read<byte>(p);
+ if (m_iMaxLoop < 1) m_iMaxLoop = 1;
+ be::skip<byte>(p,2); // skip maxContext & maxBackup
+ m_numRules = be::read<uint16>(p);
+ if (e.test(!m_numRules && m_numCollRuns == 0, E_BADEMPTYPASS)) return face.error(e);
+ be::skip<uint16>(p); // fsmOffset - not sure why we would want this
+ const byte * const pcCode = pass_start + be::read<uint32>(p) - subtable_base,
+ * const rcCode = pass_start + be::read<uint32>(p) - subtable_base,
+ * const aCode = pass_start + be::read<uint32>(p) - subtable_base;
+ be::skip<uint32>(p);
+ m_numStates = be::read<uint16>(p);
+ m_numTransition = be::read<uint16>(p);
+ m_numSuccess = be::read<uint16>(p);
+ m_numColumns = be::read<uint16>(p);
+ numRanges = be::read<uint16>(p);
+ be::skip<uint16>(p, 3); // skip searchRange, entrySelector & rangeShift.
+ assert(p - pass_start == 40);
+ // Perform some sanity checks.
+ if ( e.test(m_numTransition > m_numStates, E_BADNUMTRANS)
+ || e.test(m_numSuccess > m_numStates, E_BADNUMSUCCESS)
+ || e.test(m_numSuccess + m_numTransition < m_numStates, E_BADNUMSTATES)
+ || e.test(m_numRules && numRanges == 0, E_NORANGES)
+ || e.test(m_numColumns > 0x7FFF, E_BADNUMCOLUMNS))
+ return face.error(e);
+
+ m_successStart = m_numStates - m_numSuccess;
+ // test for beyond end - 1 to account for reading uint16
+ if (e.test(p + numRanges * 6 - 2 > pass_end, E_BADPASSLENGTH)) return face.error(e);
+ m_numGlyphs = be::peek<uint16>(p + numRanges * 6 - 4) + 1;
+ // Calculate the start of various arrays.
+ const byte * const ranges = p;
+ be::skip<uint16>(p, numRanges*3);
+ const byte * const o_rule_map = p;
+ be::skip<uint16>(p, m_numSuccess + 1);
+
+ // More sanity checks
+ if (e.test(reinterpret_cast<const byte *>(o_rule_map + m_numSuccess*sizeof(uint16)) > pass_end
+ || p > pass_end, E_BADRULEMAPLEN))
+ return face.error(e);
+ const size_t numEntries = be::peek<uint16>(o_rule_map + m_numSuccess*sizeof(uint16));
+ const byte * const rule_map = p;
+ be::skip<uint16>(p, numEntries);
+
+ if (e.test(p + 2*sizeof(uint8) > pass_end, E_BADPASSLENGTH)) return face.error(e);
+ m_minPreCtxt = be::read<uint8>(p);
+ m_maxPreCtxt = be::read<uint8>(p);
+ if (e.test(m_minPreCtxt > m_maxPreCtxt, E_BADCTXTLENBOUNDS)) return face.error(e);
+ const byte * const start_states = p;
+ be::skip<int16>(p, m_maxPreCtxt - m_minPreCtxt + 1);
+ const uint16 * const sort_keys = reinterpret_cast<const uint16 *>(p);
+ be::skip<uint16>(p, m_numRules);
+ const byte * const precontext = p;
+ be::skip<byte>(p, m_numRules);
+
+ if (e.test(p + sizeof(uint16) + sizeof(uint8) > pass_end, E_BADCTXTLENS)) return face.error(e);
+ m_colThreshold = be::read<uint8>(p);
+ if (m_colThreshold == 0) m_colThreshold = 10; // A default
+ const size_t pass_constraint_len = be::read<uint16>(p);
+
+ const uint16 * const o_constraint = reinterpret_cast<const uint16 *>(p);
+ be::skip<uint16>(p, m_numRules + 1);
+ const uint16 * const o_actions = reinterpret_cast<const uint16 *>(p);
+ be::skip<uint16>(p, m_numRules + 1);
+ const byte * const states = p;
+ if (e.test(2u*m_numTransition*m_numColumns >= (unsigned)(pass_end - p), E_BADPASSLENGTH)) return face.error(e);
+ be::skip<int16>(p, m_numTransition*m_numColumns);
+ be::skip<uint8>(p);
+ if (e.test(p != pcCode, E_BADPASSCCODEPTR)) return face.error(e);
+ be::skip<byte>(p, pass_constraint_len);
+ if (e.test(p != rcCode, E_BADRULECCODEPTR)
+ || e.test(size_t(rcCode - pcCode) != pass_constraint_len, E_BADCCODELEN)) return face.error(e);
+ be::skip<byte>(p, be::peek<uint16>(o_constraint + m_numRules));
+ if (e.test(p != aCode, E_BADACTIONCODEPTR)) return face.error(e);
+ be::skip<byte>(p, be::peek<uint16>(o_actions + m_numRules));
+
+ // We should be at the end or within the pass
+ if (e.test(p > pass_end, E_BADPASSLENGTH)) return face.error(e);
+
+ // Load the pass constraint if there is one.
+ if (pass_constraint_len)
+ {
+ face.error_context(face.error_context() + 1);
+ m_cPConstraint = vm::Machine::Code(true, pcCode, pcCode + pass_constraint_len,
+ precontext[0], be::peek<uint16>(sort_keys), *m_silf, face, PASS_TYPE_UNKNOWN);
+ if (e.test(!m_cPConstraint, E_OUTOFMEM)
+ || e.test(m_cPConstraint.status() != Code::loaded, m_cPConstraint.status() + E_CODEFAILURE))
+ return face.error(e);
+ face.error_context(face.error_context() - 1);
+ }
+ if (m_numRules)
+ {
+ if (!readRanges(ranges, numRanges, e)) return face.error(e);
+ if (!readRules(rule_map, numEntries, precontext, sort_keys,
+ o_constraint, rcCode, o_actions, aCode, face, pt, e)) return false;
+ }
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _states_cat(face.tele.states);
+#endif
+ return m_numRules ? readStates(start_states, states, o_rule_map, face, e) : true;
+}
+
+
+bool Pass::readRules(const byte * rule_map, const size_t num_entries,
+ const byte *precontext, const uint16 * sort_key,
+ const uint16 * o_constraint, const byte *rc_data,
+ const uint16 * o_action, const byte * ac_data,
+ Face & face, passtype pt, Error &e)
+{
+ const byte * const ac_data_end = ac_data + be::peek<uint16>(o_action + m_numRules);
+ const byte * const rc_data_end = rc_data + be::peek<uint16>(o_constraint + m_numRules);
+
+ precontext += m_numRules;
+ sort_key += m_numRules;
+ o_constraint += m_numRules;
+ o_action += m_numRules;
+
+ // Load rules.
+ const byte * ac_begin = 0, * rc_begin = 0,
+ * ac_end = ac_data + be::peek<uint16>(o_action),
+ * rc_end = rc_data + be::peek<uint16>(o_constraint);
+
+ // Allocate pools
+ m_rules = new Rule [m_numRules];
+ m_codes = new Code [m_numRules*2];
+ int totalSlots = 0;
+ const uint16 *tsort = sort_key;
+ for (int i = 0; i < m_numRules; ++i)
+ totalSlots += be::peek<uint16>(--tsort);
+ const size_t prog_pool_sz = vm::Machine::Code::estimateCodeDataOut(ac_end - ac_data + rc_end - rc_data, 2 * m_numRules, totalSlots);
+ m_progs = gralloc<byte>(prog_pool_sz);
+ byte * prog_pool_free = m_progs,
+ * prog_pool_end = m_progs + prog_pool_sz;
+ if (e.test(!(m_rules && m_codes && m_progs), E_OUTOFMEM)) return face.error(e);
+
+ Rule * r = m_rules + m_numRules - 1;
+ for (size_t n = m_numRules; r >= m_rules; --n, --r, ac_end = ac_begin, rc_end = rc_begin)
+ {
+ face.error_context((face.error_context() & 0xFFFF00) + EC_ARULE + ((n - 1) << 24));
+ r->preContext = *--precontext;
+ r->sort = be::peek<uint16>(--sort_key);
+#ifndef NDEBUG
+ r->rule_idx = n - 1;
+#endif
+ if (r->sort > 63 || r->preContext >= r->sort || r->preContext > m_maxPreCtxt || r->preContext < m_minPreCtxt)
+ return false;
+ ac_begin = ac_data + be::peek<uint16>(--o_action);
+ --o_constraint;
+ rc_begin = be::peek<uint16>(o_constraint) ? rc_data + be::peek<uint16>(o_constraint) : rc_end;
+
+ if (ac_begin > ac_end || ac_begin > ac_data_end || ac_end > ac_data_end
+ || rc_begin > rc_end || rc_begin > rc_data_end || rc_end > rc_data_end
+ || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin, 2, r->sort) > size_t(prog_pool_end - prog_pool_free))
+ return false;
+ r->action = new (m_codes+n*2-2) vm::Machine::Code(false, ac_begin, ac_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free);
+ r->constraint = new (m_codes+n*2-1) vm::Machine::Code(true, rc_begin, rc_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free);
+
+ if (e.test(!r->action || !r->constraint, E_OUTOFMEM)
+ || e.test(r->action->status() != Code::loaded, r->action->status() + E_CODEFAILURE)
+ || e.test(r->constraint->status() != Code::loaded, r->constraint->status() + E_CODEFAILURE)
+ || e.test(!r->constraint->immutable(), E_MUTABLECCODE))
+ return face.error(e);
+ }
+
+ byte * moved_progs = static_cast<byte *>(realloc(m_progs, prog_pool_free - m_progs));
+ if (e.test(!moved_progs, E_OUTOFMEM))
+ {
+ if (prog_pool_free - m_progs == 0) m_progs = 0;
+ return face.error(e);
+ }
+
+ if (moved_progs != m_progs)
+ {
+ for (Code * c = m_codes, * const ce = c + m_numRules*2; c != ce; ++c)
+ {
+ c->externalProgramMoved(moved_progs - m_progs);
+ }
+ m_progs = moved_progs;
+ }
+
+ // Load the rule entries map
+ face.error_context((face.error_context() & 0xFFFF00) + EC_APASS);
+ //TODO: Coverty: 1315804: FORWARD_NULL
+ RuleEntry * re = m_ruleMap = gralloc<RuleEntry>(num_entries);
+ if (e.test(!re, E_OUTOFMEM)) return face.error(e);
+ for (size_t n = num_entries; n; --n, ++re)
+ {
+ const ptrdiff_t rn = be::read<uint16>(rule_map);
+ if (e.test(rn >= m_numRules, E_BADRULENUM)) return face.error(e);
+ re->rule = m_rules + rn;
+ }
+
+ return true;
+}
+
+static int cmpRuleEntry(const void *a, const void *b) { return (*(RuleEntry *)a < *(RuleEntry *)b ? -1 :
+ (*(RuleEntry *)b < *(RuleEntry *)a ? 1 : 0)); }
+
+bool Pass::readStates(const byte * starts, const byte *states, const byte * o_rule_map, GR_MAYBE_UNUSED Face & face, Error &e)
+{
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _states_cat(face.tele.starts);
+#endif
+ m_startStates = gralloc<uint16>(m_maxPreCtxt - m_minPreCtxt + 1);
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::set_category(face.tele.states);
+#endif
+ m_states = gralloc<State>(m_numStates);
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::set_category(face.tele.transitions);
+#endif
+ m_transitions = gralloc<uint16>(m_numTransition * m_numColumns);
+
+ if (e.test(!m_startStates || !m_states || !m_transitions, E_OUTOFMEM)) return face.error(e);
+ // load start states
+ for (uint16 * s = m_startStates,
+ * const s_end = s + m_maxPreCtxt - m_minPreCtxt + 1; s != s_end; ++s)
+ {
+ *s = be::read<uint16>(starts);
+ if (e.test(*s >= m_numStates, E_BADSTATE))
+ {
+ face.error_context((face.error_context() & 0xFFFF00) + EC_ASTARTS + ((s - m_startStates) << 24));
+ return face.error(e); // true;
+ }
+ }
+
+ // load state transition table.
+ for (uint16 * t = m_transitions,
+ * const t_end = t + m_numTransition*m_numColumns; t != t_end; ++t)
+ {
+ *t = be::read<uint16>(states);
+ if (e.test(*t >= m_numStates, E_BADSTATE))
+ {
+ face.error_context((face.error_context() & 0xFFFF00) + EC_ATRANS + (((t - m_transitions) / m_numColumns) << 8));
+ return face.error(e);
+ }
+ }
+
+ State * s = m_states,
+ * const success_begin = m_states + m_numStates - m_numSuccess;
+ const RuleEntry * rule_map_end = m_ruleMap + be::peek<uint16>(o_rule_map + m_numSuccess*sizeof(uint16));
+ for (size_t n = m_numStates; n; --n, ++s)
+ {
+ RuleEntry * const begin = s < success_begin ? 0 : m_ruleMap + be::read<uint16>(o_rule_map),
+ * const end = s < success_begin ? 0 : m_ruleMap + be::peek<uint16>(o_rule_map);
+
+ if (e.test(begin >= rule_map_end || end > rule_map_end || begin > end, E_BADRULEMAPPING))
+ {
+ face.error_context((face.error_context() & 0xFFFF00) + EC_ARULEMAP + (n << 24));
+ return face.error(e);
+ }
+ s->rules = begin;
+ s->rules_end = (end - begin <= FiniteStateMachine::MAX_RULES)? end :
+ begin + FiniteStateMachine::MAX_RULES;
+ if (begin) // keep UBSan happy can't call qsort with null begin
+ qsort(begin, end - begin, sizeof(RuleEntry), &cmpRuleEntry);
+ }
+
+ return true;
+}
+
+bool Pass::readRanges(const byte * ranges, size_t num_ranges, Error &e)
+{
+ m_cols = gralloc<uint16>(m_numGlyphs);
+ if (e.test(!m_cols, E_OUTOFMEM)) return false;
+ memset(m_cols, 0xFF, m_numGlyphs * sizeof(uint16));
+ for (size_t n = num_ranges; n; --n)
+ {
+ uint16 * ci = m_cols + be::read<uint16>(ranges),
+ * ci_end = m_cols + be::read<uint16>(ranges) + 1,
+ col = be::read<uint16>(ranges);
+
+ if (e.test(ci >= ci_end || ci_end > m_cols+m_numGlyphs || col >= m_numColumns, E_BADRANGE))
+ return false;
+
+ // A glyph must only belong to one column at a time
+ while (ci != ci_end && *ci == 0xffff)
+ *ci++ = col;
+
+ if (e.test(ci != ci_end, E_BADRANGE))
+ return false;
+ }
+ return true;
+}
+
+
+bool Pass::runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const
+{
+ Slot *s = m.slotMap().segment.first();
+ if (!s || !testPassConstraint(m)) return true;
+ if (reverse)
+ {
+ m.slotMap().segment.reverseSlots();
+ s = m.slotMap().segment.first();
+ }
+ if (m_numRules)
+ {
+ Slot *currHigh = s->next();
+
+#if !defined GRAPHITE2_NTRACING
+ if (fsm.dbgout) *fsm.dbgout << "rules" << json::array;
+ json::closer rules_array_closer(fsm.dbgout);
+#endif
+
+ m.slotMap().highwater(currHigh);
+ int lc = m_iMaxLoop;
+ do
+ {
+ findNDoRule(s, m, fsm);
+ if (m.status() != Machine::finished) return false;
+ if (s && (s == m.slotMap().highwater() || m.slotMap().highpassed() || --lc == 0)) {
+ if (!lc)
+ s = m.slotMap().highwater();
+ lc = m_iMaxLoop;
+ if (s)
+ m.slotMap().highwater(s->next());
+ }
+ } while (s);
+ }
+ //TODO: Use enums for flags
+ const bool collisions = m_numCollRuns || m_kernColls;
+
+ if (!collisions || !m.slotMap().segment.hasCollisionInfo())
+ return true;
+
+ if (m_numCollRuns)
+ {
+ if (!(m.slotMap().segment.flags() & Segment::SEG_INITCOLLISIONS))
+ {
+ m.slotMap().segment.positionSlots(0, 0, 0, m.slotMap().dir(), true);
+// m.slotMap().segment.flags(m.slotMap().segment.flags() | Segment::SEG_INITCOLLISIONS);
+ }
+ if (!collisionShift(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout))
+ return false;
+ }
+ if ((m_kernColls) && !collisionKern(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout))
+ return false;
+ if (collisions && !collisionFinish(&m.slotMap().segment, fsm.dbgout))
+ return false;
+ return true;
+}
+
+bool Pass::runFSM(FiniteStateMachine& fsm, Slot * slot) const
+{
+ fsm.reset(slot, m_maxPreCtxt);
+ if (fsm.slots.context() < m_minPreCtxt)
+ return false;
+
+ uint16 state = m_startStates[m_maxPreCtxt - fsm.slots.context()];
+ uint8 free_slots = SlotMap::MAX_SLOTS;
+ do
+ {
+ fsm.slots.pushSlot(slot);
+ if (slot->gid() >= m_numGlyphs
+ || m_cols[slot->gid()] == 0xffffU
+ || --free_slots == 0
+ || state >= m_numTransition)
+ return free_slots != 0;
+
+ const uint16 * transitions = m_transitions + state*m_numColumns;
+ state = transitions[m_cols[slot->gid()]];
+ if (state >= m_successStart)
+ fsm.rules.accumulate_rules(m_states[state]);
+
+ slot = slot->next();
+ } while (state != 0 && slot);
+
+ fsm.slots.pushSlot(slot);
+ return true;
+}
+
+#if !defined GRAPHITE2_NTRACING
+
+inline
+Slot * input_slot(const SlotMap & slots, const int n)
+{
+ Slot * s = slots[slots.context() + n];
+ if (!s->isCopied()) return s;
+
+ return s->prev() ? s->prev()->next() : (s->next() ? s->next()->prev() : slots.segment.last());
+}
+
+inline
+Slot * output_slot(const SlotMap & slots, const int n)
+{
+ Slot * s = slots[slots.context() + n - 1];
+ return s ? s->next() : slots.segment.first();
+}
+
+#endif //!defined GRAPHITE2_NTRACING
+
+void Pass::findNDoRule(Slot * & slot, Machine &m, FiniteStateMachine & fsm) const
+{
+ assert(slot);
+
+ if (runFSM(fsm, slot))
+ {
+ // Search for the first rule which passes the constraint
+ const RuleEntry * r = fsm.rules.begin(),
+ * const re = fsm.rules.end();
+ while (r != re && !testConstraint(*r->rule, m))
+ {
+ ++r;
+ if (m.status() != Machine::finished)
+ return;
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (fsm.dbgout)
+ {
+ if (fsm.rules.size() != 0)
+ {
+ *fsm.dbgout << json::item << json::object;
+ dumpRuleEventConsidered(fsm, *r);
+ if (r != re)
+ {
+ const int adv = doAction(r->rule->action, slot, m);
+ dumpRuleEventOutput(fsm, *r->rule, slot);
+ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot);
+ adjustSlot(adv, slot, fsm.slots);
+ *fsm.dbgout << "cursor" << objectid(dslot(&fsm.slots.segment, slot))
+ << json::close; // Close RuelEvent object
+
+ return;
+ }
+ else
+ {
+ *fsm.dbgout << json::close // close "considered" array
+ << "output" << json::null
+ << "cursor" << objectid(dslot(&fsm.slots.segment, slot->next()))
+ << json::close;
+ }
+ }
+ }
+ else
+#endif
+ {
+ if (r != re)
+ {
+ const int adv = doAction(r->rule->action, slot, m);
+ if (m.status() != Machine::finished) return;
+ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot);
+ adjustSlot(adv, slot, fsm.slots);
+ return;
+ }
+ }
+ }
+
+ slot = slot->next();
+ return;
+}
+
+#if !defined GRAPHITE2_NTRACING
+
+void Pass::dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const
+{
+ *fsm.dbgout << "considered" << json::array;
+ for (const RuleEntry *r = fsm.rules.begin(); r != &re; ++r)
+ {
+ if (r->rule->preContext > fsm.slots.context())
+ continue;
+ *fsm.dbgout << json::flat << json::object
+ << "id" << r->rule - m_rules
+ << "failed" << true
+ << "input" << json::flat << json::object
+ << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, -r->rule->preContext)))
+ << "length" << r->rule->sort
+ << json::close // close "input"
+ << json::close; // close Rule object
+ }
+}
+
+
+void Pass::dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * const last_slot) const
+{
+ *fsm.dbgout << json::item << json::flat << json::object
+ << "id" << &r - m_rules
+ << "failed" << false
+ << "input" << json::flat << json::object
+ << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0)))
+ << "length" << r.sort - r.preContext
+ << json::close // close "input"
+ << json::close // close Rule object
+ << json::close // close considered array
+ << "output" << json::object
+ << "range" << json::flat << json::object
+ << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0)))
+ << "end" << objectid(dslot(&fsm.slots.segment, last_slot))
+ << json::close // close "input"
+ << "slots" << json::array;
+ const Position rsb_prepos = last_slot ? last_slot->origin() : fsm.slots.segment.advance();
+ fsm.slots.segment.positionSlots(0, 0, 0, fsm.slots.segment.currdir());
+
+ for(Slot * slot = output_slot(fsm.slots, 0); slot != last_slot; slot = slot->next())
+ *fsm.dbgout << dslot(&fsm.slots.segment, slot);
+ *fsm.dbgout << json::close // close "slots"
+ << "postshift" << (last_slot ? last_slot->origin() : fsm.slots.segment.advance()) - rsb_prepos
+ << json::close; // close "output" object
+
+}
+
+#endif
+
+
+inline
+bool Pass::testPassConstraint(Machine & m) const
+{
+ if (!m_cPConstraint) return true;
+
+ assert(m_cPConstraint.constraint());
+
+ m.slotMap().reset(*m.slotMap().segment.first(), 0);
+ m.slotMap().pushSlot(m.slotMap().segment.first());
+ vm::slotref * map = m.slotMap().begin();
+ const uint32 ret = m_cPConstraint.run(m, map);
+
+#if !defined GRAPHITE2_NTRACING
+ json * const dbgout = m.slotMap().segment.getFace()->logger();
+ if (dbgout)
+ *dbgout << "constraint" << (ret && m.status() == Machine::finished);
+#endif
+
+ return ret && m.status() == Machine::finished;
+}
+
+
+bool Pass::testConstraint(const Rule & r, Machine & m) const
+{
+ const uint16 curr_context = m.slotMap().context();
+ if (unsigned(r.sort + curr_context - r.preContext) > m.slotMap().size()
+ || curr_context - r.preContext < 0) return false;
+
+ vm::slotref * map = m.slotMap().begin() + curr_context - r.preContext;
+ if (map[r.sort - 1] == 0)
+ return false;
+
+ if (!*r.constraint) return true;
+ assert(r.constraint->constraint());
+ for (int n = r.sort; n && map; --n, ++map)
+ {
+ if (!*map) continue;
+ const int32 ret = r.constraint->run(m, map);
+ if (!ret || m.status() != Machine::finished)
+ return false;
+ }
+
+ return true;
+}
+
+
+void SlotMap::collectGarbage(Slot * &aSlot)
+{
+ for(Slot **s = begin(), *const *const se = end() - 1; s != se; ++s) {
+ Slot *& slot = *s;
+ if(slot && (slot->isDeleted() || slot->isCopied()))
+ {
+ if (slot == aSlot)
+ aSlot = slot->prev() ? slot->prev() : slot->next();
+ segment.freeSlot(slot);
+ }
+ }
+}
+
+
+
+int Pass::doAction(const Code *codeptr, Slot * & slot_out, vm::Machine & m) const
+{
+ assert(codeptr);
+ if (!*codeptr) return 0;
+ SlotMap & smap = m.slotMap();
+ vm::slotref * map = &smap[smap.context()];
+ smap.highpassed(false);
+
+ int32 ret = codeptr->run(m, map);
+
+ if (m.status() != Machine::finished)
+ {
+ slot_out = NULL;
+ smap.highwater(0);
+ return 0;
+ }
+
+ slot_out = *map;
+ return ret;
+}
+
+
+void Pass::adjustSlot(int delta, Slot * & slot_out, SlotMap & smap) const
+{
+ if (!slot_out)
+ {
+ if (smap.highpassed() || slot_out == smap.highwater())
+ {
+ slot_out = smap.segment.last();
+ ++delta;
+ if (!smap.highwater())
+ smap.highpassed(false);
+ }
+ else
+ {
+ slot_out = smap.segment.first();
+ --delta;
+ }
+ }
+ if (delta < 0)
+ {
+ while (++delta <= 0 && slot_out)
+ {
+ if (smap.highpassed() && smap.highwater() == slot_out)
+ smap.highpassed(false);
+ slot_out = slot_out->prev();
+ }
+ }
+ else if (delta > 0)
+ {
+ while (--delta >= 0 && slot_out)
+ {
+ slot_out = slot_out->next();
+ if (slot_out == smap.highwater() && slot_out)
+ smap.highpassed(true);
+ }
+ }
+}
+
+bool Pass::collisionShift(Segment *seg, int dir, json * const dbgout) const
+{
+ ShiftCollider shiftcoll(dbgout);
+ // bool isfirst = true;
+ bool hasCollisions = false;
+ Slot *start = seg->first(); // turn on collision fixing for the first slot
+ Slot *end = NULL;
+ bool moved = false;
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << "collisions" << json::array
+ << json::flat << json::object << "num-loops" << m_numCollRuns << json::close;
+#endif
+
+ while (start)
+ {
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout) *dbgout << json::object << "phase" << "1" << "moves" << json::array;
+#endif
+ hasCollisions = false;
+ end = NULL;
+ // phase 1 : position shiftable glyphs, ignoring kernable glyphs
+ for (Slot *s = start; s; s = s->next())
+ {
+ const SlotCollision * c = seg->collisionInfo(s);
+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX
+ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout))
+ return false;
+ if (s != start && (c->flags() & SlotCollision::COLL_END))
+ {
+ end = s->next();
+ break;
+ }
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::close << json::close; // phase-1
+#endif
+
+ // phase 2 : loop until happy.
+ for (int i = 0; i < m_numCollRuns - 1; ++i)
+ {
+ if (hasCollisions || moved)
+ {
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::object << "phase" << "2a" << "loop" << i << "moves" << json::array;
+#endif
+ // phase 2a : if any shiftable glyphs are in collision, iterate backwards,
+ // fixing them and ignoring other non-collided glyphs. Note that this handles ONLY
+ // glyphs that are actually in collision from phases 1 or 2b, and working backwards
+ // has the intended effect of breaking logjams.
+ if (hasCollisions)
+ {
+ hasCollisions = false;
+ #if 0
+ moved = true;
+ for (Slot *s = start; s != end; s = s->next())
+ {
+ SlotCollision * c = seg->collisionInfo(s);
+ c->setShift(Position(0, 0));
+ }
+ #endif
+ Slot *lend = end ? end->prev() : seg->last();
+ Slot *lstart = start->prev();
+ for (Slot *s = lend; s != lstart; s = s->prev())
+ {
+ SlotCollision * c = seg->collisionInfo(s);
+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN | SlotCollision::COLL_ISCOL))
+ == (SlotCollision::COLL_FIX | SlotCollision::COLL_ISCOL)) // ONLY if this glyph is still colliding
+ {
+ if (!resolveCollisions(seg, s, lend, shiftcoll, true, dir, moved, hasCollisions, dbgout))
+ return false;
+ c->setFlags(c->flags() | SlotCollision::COLL_TEMPLOCK);
+ }
+ }
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::close << json::close // phase 2a
+ << json::object << "phase" << "2b" << "loop" << i << "moves" << json::array;
+#endif
+
+ // phase 2b : redo basic diacritic positioning pass for ALL glyphs. Each successive loop adjusts
+ // glyphs from their current adjusted position, which has the effect of gradually minimizing the
+ // resulting adjustment; ie, the final result will be gradually closer to the original location.
+ // Also it allows more flexibility in the final adjustment, since it is moving along the
+ // possible 8 vectors from successively different starting locations.
+ if (moved)
+ {
+ moved = false;
+ for (Slot *s = start; s != end; s = s->next())
+ {
+ SlotCollision * c = seg->collisionInfo(s);
+ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_TEMPLOCK
+ | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX
+ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout))
+ return false;
+ else if (c->flags() & SlotCollision::COLL_TEMPLOCK)
+ c->setFlags(c->flags() & ~SlotCollision::COLL_TEMPLOCK);
+ }
+ }
+ // if (!hasCollisions) // no, don't leave yet because phase 2b will continue to improve things
+ // break;
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::close << json::close; // phase 2
+#endif
+ }
+ }
+ if (!end)
+ break;
+ start = NULL;
+ for (Slot *s = end->prev(); s; s = s->next())
+ {
+ if (seg->collisionInfo(s)->flags() & SlotCollision::COLL_START)
+ {
+ start = s;
+ break;
+ }
+ }
+ }
+ return true;
+}
+
+bool Pass::collisionKern(Segment *seg, int dir, json * const dbgout) const
+{
+ Slot *start = seg->first();
+ float ymin = 1e38f;
+ float ymax = -1e38f;
+ const GlyphCache &gc = seg->getFace()->glyphs();
+
+ // phase 3 : handle kerning of clusters
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::object << "phase" << "3" << "moves" << json::array;
+#endif
+
+ for (Slot *s = seg->first(); s; s = s->next())
+ {
+ if (!gc.check(s->gid()))
+ return false;
+ const SlotCollision * c = seg->collisionInfo(s);
+ const Rect &bbox = seg->theGlyphBBoxTemporary(s->gid());
+ float y = s->origin().y + c->shift().y;
+ if (!(c->flags() & SlotCollision::COLL_ISSPACE))
+ {
+ ymax = max(y + bbox.tr.y, ymax);
+ ymin = min(y + bbox.bl.y, ymin);
+ }
+ if (start && (c->flags() & (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX))
+ == (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX))
+ resolveKern(seg, s, start, dir, ymin, ymax, dbgout);
+ if (c->flags() & SlotCollision::COLL_END)
+ start = NULL;
+ if (c->flags() & SlotCollision::COLL_START)
+ start = s;
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::close << json::close; // phase 3
+#endif
+ return true;
+}
+
+bool Pass::collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const
+{
+ for (Slot *s = seg->first(); s; s = s->next())
+ {
+ SlotCollision *c = seg->collisionInfo(s);
+ if (c->shift().x != 0 || c->shift().y != 0)
+ {
+ const Position newOffset = c->shift();
+ const Position nullPosition(0, 0);
+ c->setOffset(newOffset + c->offset());
+ c->setShift(nullPosition);
+ }
+ }
+// seg->positionSlots();
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ *dbgout << json::close;
+#endif
+ return true;
+}
+
+// Can slot s be kerned, or is it attached to something that can be kerned?
+static bool inKernCluster(Segment *seg, Slot *s)
+{
+ SlotCollision *c = seg->collisionInfo(s);
+ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ )
+ return true;
+ while (s->attachedTo())
+ {
+ s = s->attachedTo();
+ c = seg->collisionInfo(s);
+ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ )
+ return true;
+ }
+ return false;
+}
+
+// Fix collisions for the given slot.
+// Return true if everything was fixed, false if there are still collisions remaining.
+// isRev means be we are processing backwards.
+bool Pass::resolveCollisions(Segment *seg, Slot *slotFix, Slot *start,
+ ShiftCollider &coll, GR_MAYBE_UNUSED bool isRev, int dir, bool &moved, bool &hasCol,
+ json * const dbgout) const
+{
+ Slot * nbor; // neighboring slot
+ SlotCollision *cFix = seg->collisionInfo(slotFix);
+ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(), cFix->marginWt(),
+ cFix->shift(), cFix->offset(), dir, dbgout))
+ return false;
+ bool collides = false;
+ // When we're processing forward, ignore kernable glyphs that preceed the target glyph.
+ // When processing backward, don't ignore these until we pass slotFix.
+ bool ignoreForKern = !isRev;
+ bool rtl = dir & 1;
+ Slot *base = slotFix;
+ while (base->attachedTo())
+ base = base->attachedTo();
+ Position zero(0., 0.);
+
+ // Look for collisions with the neighboring glyphs.
+ for (nbor = start; nbor; nbor = isRev ? nbor->prev() : nbor->next())
+ {
+ SlotCollision *cNbor = seg->collisionInfo(nbor);
+ bool sameCluster = nbor->isChildOf(base);
+ if (nbor != slotFix // don't process if this is the slot of interest
+ && !(cNbor->ignore()) // don't process if ignoring
+ && (nbor == base || sameCluster // process if in the same cluster as slotFix
+ || !inKernCluster(seg, nbor) // or this cluster is not to be kerned
+ || (rtl ^ ignoreForKern)) // or it comes before(ltr) or after(rtl)
+ && (!isRev // if processing forwards then good to merge otherwise only:
+ || !(cNbor->flags() & SlotCollision::COLL_FIX) // merge in immovable stuff
+ || ((cNbor->flags() & SlotCollision::COLL_KERN) && !sameCluster) // ignore other kernable clusters
+ || (cNbor->flags() & SlotCollision::COLL_ISCOL)) // test against other collided glyphs
+ && !coll.mergeSlot(seg, nbor, cNbor, cNbor->shift(), !ignoreForKern, sameCluster, collides, false, dbgout))
+ return false;
+ else if (nbor == slotFix)
+ // Switching sides of this glyph - if we were ignoring kernable stuff before, don't anymore.
+ ignoreForKern = !ignoreForKern;
+
+ if (nbor != start && (cNbor->flags() & (isRev ? SlotCollision::COLL_START : SlotCollision::COLL_END)))
+ break;
+ }
+ bool isCol = false;
+ if (collides || cFix->shift().x != 0.f || cFix->shift().y != 0.f)
+ {
+ Position shift = coll.resolve(seg, isCol, dbgout);
+ // isCol has been set to true if a collision remains.
+ if (std::fabs(shift.x) < 1e38f && std::fabs(shift.y) < 1e38f)
+ {
+ if (sqr(shift.x-cFix->shift().x) + sqr(shift.y-cFix->shift().y) >= m_colThreshold * m_colThreshold)
+ moved = true;
+ cFix->setShift(shift);
+ if (slotFix->firstChild())
+ {
+ Rect bbox;
+ Position here = slotFix->origin() + shift;
+ float clusterMin = here.x;
+ slotFix->firstChild()->finalise(seg, NULL, here, bbox, 0, clusterMin, rtl, false);
+ }
+ }
+ }
+ else
+ {
+ // This glyph is not colliding with anything.
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ {
+ *dbgout << json::object
+ << "missed" << objectid(dslot(seg, slotFix));
+ coll.outputJsonDbg(dbgout, seg, -1);
+ *dbgout << json::close;
+ }
+#endif
+ }
+
+ // Set the is-collision flag bit.
+ if (isCol)
+ { cFix->setFlags(cFix->flags() | SlotCollision::COLL_ISCOL | SlotCollision::COLL_KNOWN); }
+ else
+ { cFix->setFlags((cFix->flags() & ~SlotCollision::COLL_ISCOL) | SlotCollision::COLL_KNOWN); }
+ hasCol |= isCol;
+ return true;
+}
+
+float Pass::resolveKern(Segment *seg, Slot *slotFix, GR_MAYBE_UNUSED Slot *start, int dir,
+ float &ymin, float &ymax, json *const dbgout) const
+{
+ Slot *nbor; // neighboring slot
+ float currSpace = 0.;
+ bool collides = false;
+ unsigned int space_count = 0;
+ Slot *base = slotFix;
+ while (base->attachedTo())
+ base = base->attachedTo();
+ SlotCollision *cFix = seg->collisionInfo(base);
+ const GlyphCache &gc = seg->getFace()->glyphs();
+
+ if (base != slotFix)
+ {
+ cFix->setFlags(cFix->flags() | SlotCollision::COLL_KERN | SlotCollision::COLL_FIX);
+ return 0;
+ }
+ bool seenEnd = (cFix->flags() & SlotCollision::COLL_END) != 0;
+ bool isInit = false;
+ KernCollider coll(dbgout);
+
+ for (nbor = slotFix->next(); nbor; nbor = nbor->next())
+ {
+ if (nbor->isChildOf(base))
+ continue;
+ if (!gc.check(nbor->gid()))
+ return 0.;
+ const Rect &bb = seg->theGlyphBBoxTemporary(nbor->gid());
+ SlotCollision *cNbor = seg->collisionInfo(nbor);
+ if ((bb.bl.y == 0.f && bb.tr.y == 0.f) || (cNbor->flags() & SlotCollision::COLL_ISSPACE))
+ {
+ if (m_kernColls == InWord)
+ break;
+ // Add space for a space glyph.
+ currSpace += nbor->advance();
+ ++space_count;
+ }
+ else
+ {
+ space_count = 0;
+ float y = nbor->origin().y + cNbor->shift().y;
+ ymax = max(y + bb.tr.y, ymax);
+ ymin = min(y + bb.bl.y, ymin);
+ if (nbor != slotFix && !cNbor->ignore())
+ {
+ seenEnd = true;
+ if (!isInit)
+ {
+ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(),
+ cFix->shift(), cFix->offset(), dir, ymin, ymax, dbgout))
+ return 0.;
+ isInit = true;
+ }
+ collides |= coll.mergeSlot(seg, nbor, cNbor->shift(), currSpace, dir, dbgout);
+ }
+ }
+ if (cNbor->flags() & SlotCollision::COLL_END)
+ {
+ if (seenEnd && space_count < 2)
+ break;
+ else
+ seenEnd = true;
+ }
+ }
+ if (collides)
+ {
+ Position mv = coll.resolve(seg, slotFix, dir, dbgout);
+ coll.shift(mv, dir);
+ Position delta = slotFix->advancePos() + mv - cFix->shift();
+ slotFix->advance(delta);
+ cFix->setShift(mv);
+ return mv.x;
+ }
+ return 0.;
+}
+
diff --git a/gfx/graphite2/src/Position.cpp b/gfx/graphite2/src/Position.cpp
new file mode 100644
index 000000000..172479875
--- /dev/null
+++ b/gfx/graphite2/src/Position.cpp
@@ -0,0 +1,98 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Position.h"
+#include <cmath>
+
+using namespace graphite2;
+
+bool Rect::hitTest(Rect &other)
+{
+ if (bl.x > other.tr.x) return false;
+ if (tr.x < other.bl.x) return false;
+ if (bl.y > other.tr.y) return false;
+ if (tr.y < other.bl.y) return false;
+ return true;
+}
+
+Position Rect::overlap(Position &offset, Rect &other, Position &othero)
+{
+ float ax = (bl.x + offset.x) - (other.tr.x + othero.x);
+ float ay = (bl.y + offset.y) - (other.tr.y + othero.y);
+ float bx = (other.bl.x + othero.x) - (tr.x + offset.x);
+ float by = (other.bl.y + othero.y) - (tr.y + offset.y);
+ return Position((ax > bx ? ax : bx), (ay > by ? ay : by));
+}
+
+float boundmin(float move, float lim1, float lim2, float &error)
+{
+ // error is always positive for easy comparison
+ if (move < lim1 && move < lim2)
+ { error = 0.; return move; }
+ else if (lim1 < lim2)
+ { error = std::fabs(move - lim1); return lim1; }
+ else
+ { error = std::fabs(move - lim2); return lim2; }
+}
+
+#if 0
+Position Rect::constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox)
+{
+ // a = max, i = min, s = sum, d = diff
+ float eax, eay, eix, eiy, eas, eis, ead, eid;
+ float beste = INF;
+ Position res;
+ // calculate the movements in each direction and the error (amount of remaining overlap)
+ // first param is movement, second and third are movement over the constraining box
+ float ax = boundmin(obox.tr.x + other.x - box.bl.x - offset.x + 1, tr.x - offset.x, INF, &eax);
+ float ay = boundmin(obox.tr.y + other.y - box.bl.y - offset.y + 1, tr.y - offset.y, INF, &eay);
+ float ix = boundmin(obox.bl.x + other.x - box.tr.x - offset.x + 1, bl.x - offset.x, INF, &eix);
+ float iy = boundmin(obox.bl.y + other.y - box.tr.y - offset.y + 1, bl.y - offset.y, INF, &eiy);
+ float as = boundmin(ISQRT2 * (osdbox.tr.x + other.x + other.y - sdbox.bl.x - offset.x - offset.y) + 1, tr.x - offset.x, tr.y - offset.y, &eas);
+ float is = boundmin(ISQRT2 * (osdbox.bl.x + other.x + other.y - sdbox.tr.x - offset.x - offset.y) + 1, bl.x - offset.x, bl.y - offset.y, &eis);
+ float ad = boundmin(ISQRT2 * (osdbox.tr.y + other.x - other.y - sdbox.bl.y - offset.x + offset.y) + 1, tr.y - offset.y, tr.x - offset.x, &ead);
+ float id = boundmin(ISQRT2 * (osdbox.bl.y + other.x - other.y - sdbox.tr.y - offset.x + offset.y) + 1, bl.y - offset.y, bl.x - offset.x, &eid);
+
+ if (eax < beste)
+ { res = Position(ax, 0); beste = eax; }
+ if (eay < beste)
+ { res = Position(0, ay); beste = eay; }
+ if (eix < beste)
+ { res = Position(ix, 0); beste = eix; }
+ if (eiy < beste)
+ { res = Position(0, iy); beste = eiy; }
+ if (SQRT2 * (eas) < beste)
+ { res = Position(as, ad); beste = SQRT2 * (eas); }
+ if (SQRT2 * (eis) < beste)
+ { res = Position(is, is); beste = SQRT2 * (eis); }
+ if (SQRT2 * (ead) < beste)
+ { res = Position(ad, ad); beste = SQRT2 * (ead); }
+ if (SQRT2 * (eid) < beste)
+ { res = Position(id, id); beste = SQRT2 * (eid); }
+ return res;
+}
+#endif
+
diff --git a/gfx/graphite2/src/Rule.cpp b/gfx/graphite2/src/Rule.cpp
new file mode 100644
index 000000000..34c8ae169
--- /dev/null
+++ b/gfx/graphite2/src/Rule.cpp
@@ -0,0 +1,31 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#include "inc/Rule.h"
+#include "inc/Segment.h"
+
+using namespace graphite2;
diff --git a/gfx/graphite2/src/SegCache.cpp b/gfx/graphite2/src/SegCache.cpp
new file mode 100644
index 000000000..b577efa27
--- /dev/null
+++ b/gfx/graphite2/src/SegCache.cpp
@@ -0,0 +1,224 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#include "inc/Main.h"
+#include "inc/TtfTypes.h"
+#include "inc/TtfUtil.h"
+#include "inc/SegCache.h"
+#include "inc/SegCacheEntry.h"
+#include "inc/SegCacheStore.h"
+#include "inc/CmapCache.h"
+
+
+using namespace graphite2;
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+SegCache::SegCache(const SegCacheStore * store, const Features & feats)
+: m_prefixLength(ePrefixLength),
+// m_maxCachedSegLength(eMaxSpliceSize),
+ m_segmentCount(0),
+ m_features(feats),
+ m_totalAccessCount(0l), m_totalMisses(0l),
+ m_purgeFactor(1.0f / (ePurgeFactor * store->maxSegmentCount()))
+{
+ m_prefixes.raw = grzeroalloc<void*>(store->maxCmapGid() + 2);
+ m_prefixes.range[SEG_CACHE_MIN_INDEX] = SEG_CACHE_UNSET_INDEX;
+ m_prefixes.range[SEG_CACHE_MAX_INDEX] = SEG_CACHE_UNSET_INDEX;
+}
+
+void SegCache::freeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level)
+{
+ for (size_t i = 0; i < store->maxCmapGid(); i++)
+ {
+ if (prefixes.array[i].raw)
+ {
+ if (level + 1 < ePrefixLength)
+ freeLevel(store, prefixes.array[i], level + 1);
+ else
+ {
+ SegCachePrefixEntry * prefixEntry = prefixes.prefixEntries[i];
+ delete prefixEntry;
+ }
+ }
+ }
+ free(prefixes.raw);
+}
+
+void SegCache::clear(SegCacheStore * store)
+{
+ freeLevel(store, m_prefixes, 0);
+ m_prefixes.raw = NULL;
+}
+
+SegCache::~SegCache()
+{
+ assert(m_prefixes.raw == NULL);
+}
+
+SegCacheEntry* SegCache::cache(SegCacheStore * store, const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset)
+{
+ uint16 pos = 0;
+ if (!length) return NULL;
+// assert(length < m_maxCachedSegLength);
+ SegCachePrefixArray pArray = m_prefixes;
+ while (pos + 1 < m_prefixLength)
+ {
+ uint16 gid = (pos < length)? cmapGlyphs[pos] : 0;
+ if (!pArray.array[gid].raw)
+ {
+ pArray.array[gid].raw = grzeroalloc<void*>(store->maxCmapGid() + 2);
+ if (!pArray.array[gid].raw)
+ return NULL; // malloc failed
+ if (pArray.range[SEG_CACHE_MIN_INDEX] == SEG_CACHE_UNSET_INDEX)
+ {
+ pArray.range[SEG_CACHE_MIN_INDEX] = gid;
+ pArray.range[SEG_CACHE_MAX_INDEX] = gid;
+ }
+ else
+ {
+ if (gid < pArray.range[SEG_CACHE_MIN_INDEX])
+ pArray.range[SEG_CACHE_MIN_INDEX] = gid;
+ else if (gid > pArray.range[SEG_CACHE_MAX_INDEX])
+ pArray.range[SEG_CACHE_MAX_INDEX] = gid;
+ }
+ }
+ pArray = pArray.array[gid];
+ ++pos;
+ }
+ uint16 gid = (pos < length)? cmapGlyphs[pos] : 0;
+ SegCachePrefixEntry * prefixEntry = pArray.prefixEntries[gid];
+ if (!prefixEntry)
+ {
+ prefixEntry = new SegCachePrefixEntry();
+ pArray.prefixEntries[gid] = prefixEntry;
+ if (pArray.range[SEG_CACHE_MIN_INDEX] == SEG_CACHE_UNSET_INDEX)
+ {
+ pArray.range[SEG_CACHE_MIN_INDEX] = gid;
+ pArray.range[SEG_CACHE_MAX_INDEX] = gid;
+ }
+ else
+ {
+ if (gid < pArray.range[SEG_CACHE_MIN_INDEX])
+ pArray.range[SEG_CACHE_MIN_INDEX] = gid;
+ else if (gid > pArray.range[SEG_CACHE_MAX_INDEX])
+ pArray.range[SEG_CACHE_MAX_INDEX] = gid;
+ }
+ }
+ if (!prefixEntry) return NULL;
+ // if the cache is full run a purge - this is slow, since it walks the tree
+ if (m_segmentCount + 1 > store->maxSegmentCount())
+ {
+ purge(store);
+ assert(m_segmentCount < store->maxSegmentCount());
+ }
+ SegCacheEntry * pEntry = prefixEntry->cache(cmapGlyphs, length, seg, charOffset, m_totalAccessCount);
+ if (pEntry) ++m_segmentCount;
+ return pEntry;
+}
+
+void SegCache::purge(SegCacheStore * store)
+{
+ unsigned long long minAccessCount = static_cast<unsigned long long>(m_totalAccessCount * m_purgeFactor + 1);
+ if (minAccessCount < 2) minAccessCount = 2;
+ unsigned long long oldAccessTime = m_totalAccessCount - store->maxSegmentCount() / eAgeFactor;
+ purgeLevel(store, m_prefixes, 0, minAccessCount, oldAccessTime);
+}
+
+void SegCache::purgeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level,
+ unsigned long long minAccessCount, unsigned long long oldAccessTime)
+{
+ if (prefixes.range[SEG_CACHE_MIN_INDEX] == SEG_CACHE_UNSET_INDEX) return;
+ size_t maxGlyphCached = prefixes.range[SEG_CACHE_MAX_INDEX];
+ for (size_t i = prefixes.range[SEG_CACHE_MIN_INDEX]; i <= maxGlyphCached; i++)
+ {
+ if (prefixes.array[i].raw)
+ {
+ if (level + 1 < ePrefixLength)
+ purgeLevel(store, prefixes.array[i], level + 1, minAccessCount, oldAccessTime);
+ else
+ {
+ SegCachePrefixEntry * prefixEntry = prefixes.prefixEntries[i];
+ m_segmentCount -= prefixEntry->purge(minAccessCount,
+ oldAccessTime, m_totalAccessCount);
+ }
+ }
+ }
+}
+
+uint32 SegCachePrefixEntry::purge(unsigned long long minAccessCount,
+ unsigned long long oldAccessTime,
+ unsigned long long currentTime)
+{
+ // ignore the purge request if another has been done recently
+ //if (m_lastPurge > oldAccessTime)
+ // return 0;
+
+ uint32 totalPurged = 0;
+ // real length is length + 1 in this loop
+ for (uint16 length = 0; length < eMaxSpliceSize; length++)
+ {
+ if (m_entryCounts[length] == 0)
+ continue;
+ uint16 purgeCount = 0;
+ uint16 newIndex = 0;
+ for (uint16 j = 0; j < m_entryCounts[length]; j++)
+ {
+ SegCacheEntry & tempEntry = m_entries[length][j];
+ // purge entries with a low access count which haven't been
+ // accessed recently
+ if (tempEntry.accessCount() <= minAccessCount &&
+ tempEntry.lastAccess() <= oldAccessTime)
+ {
+ tempEntry.clear();
+ ++purgeCount;
+ }
+ else
+ {
+ memcpy(m_entries[length] + newIndex++, m_entries[length] + j, sizeof(SegCacheEntry));
+ }
+ }
+ if (purgeCount == m_entryCounts[length])
+ {
+ assert(newIndex == 0);
+ m_entryCounts[length] = 0;
+ m_entryBSIndex[length] = 0;
+ free(m_entries[length]);
+ m_entries[length] = NULL;
+ }
+ else if (purgeCount > 0)
+ {
+ assert(m_entryCounts[length] == newIndex + purgeCount);
+ m_entryCounts[length] = newIndex;
+ }
+ totalPurged += purgeCount;
+ }
+ m_lastPurge = currentTime;
+ return totalPurged;
+}
+
+#endif
diff --git a/gfx/graphite2/src/SegCacheEntry.cpp b/gfx/graphite2/src/SegCacheEntry.cpp
new file mode 100644
index 000000000..d35912d5a
--- /dev/null
+++ b/gfx/graphite2/src/SegCacheEntry.cpp
@@ -0,0 +1,108 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include "inc/Main.h"
+#include "inc/Slot.h"
+#include "inc/Segment.h"
+#include "inc/SegCache.h"
+#include "inc/SegCacheEntry.h"
+
+
+using namespace graphite2;
+
+SegCacheEntry::SegCacheEntry(const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset, long long cacheTime)
+ : m_glyphLength(0), m_unicode(gralloc<uint16>(length)), m_glyph(NULL),
+ m_attr(NULL), m_justs(NULL),
+ m_accessCount(0), m_lastAccess(cacheTime)
+{
+ if (m_unicode)
+ for (uint16 i = 0; i < length; i++)
+ m_unicode[i] = cmapGlyphs[i];
+
+ const size_t glyphCount = seg->slotCount(),
+ sizeof_sjust = SlotJustify::size_of(seg->silf()->numJustLevels());
+ if (!glyphCount) return;
+ size_t num_justs = 0,
+ justs_pos = 0;
+ if (seg->hasJustification())
+ {
+ for (const Slot * s = seg->first(); s; s = s->next())
+ {
+ if (s->m_justs == 0) continue;
+ ++num_justs;
+ }
+ m_justs = gralloc<byte>(sizeof_sjust * num_justs);
+ }
+ const Slot * slot = seg->first();
+ m_glyph = new Slot[glyphCount];
+ m_attr = gralloc<int16>(glyphCount * seg->numAttrs());
+ if (!m_glyph || (!m_attr && seg->numAttrs())) return;
+ m_glyphLength = glyphCount;
+ Slot * slotCopy = m_glyph;
+ m_glyph->prev(NULL);
+
+ uint16 pos = 0;
+ while (slot)
+ {
+ slotCopy->userAttrs(m_attr + pos * seg->numAttrs());
+ slotCopy->m_justs = m_justs ? reinterpret_cast<SlotJustify *>(m_justs + justs_pos++ * sizeof_sjust) : 0;
+ slotCopy->set(*slot, -static_cast<int32>(charOffset), seg->numAttrs(), seg->silf()->numJustLevels(), length);
+ slotCopy->index(pos);
+ if (slot->firstChild())
+ slotCopy->m_child = m_glyph + slot->firstChild()->index();
+ if (slot->attachedTo())
+ slotCopy->attachTo(m_glyph + slot->attachedTo()->index());
+ if (slot->nextSibling())
+ slotCopy->m_sibling = m_glyph + slot->nextSibling()->index();
+ slot = slot->next();
+ ++slotCopy;
+ ++pos;
+ if (slot)
+ {
+ slotCopy->prev(slotCopy-1);
+ (slotCopy-1)->next(slotCopy);
+ }
+ }
+}
+
+
+void SegCacheEntry::clear()
+{
+ free(m_unicode);
+ free(m_attr);
+ free(m_justs);
+ delete [] m_glyph;
+ m_unicode = NULL;
+ m_glyph = NULL;
+ m_glyphLength = 0;
+ m_attr = NULL;
+}
+
+#endif
+
diff --git a/gfx/graphite2/src/SegCacheStore.cpp b/gfx/graphite2/src/SegCacheStore.cpp
new file mode 100644
index 000000000..236fb707f
--- /dev/null
+++ b/gfx/graphite2/src/SegCacheStore.cpp
@@ -0,0 +1,47 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include "inc/SegCacheStore.h"
+#include "inc/Face.h"
+
+
+using namespace graphite2;
+
+SegCacheStore::SegCacheStore(const Face & face, unsigned int numSilf, size_t maxSegments)
+: m_caches(new SilfSegCache[numSilf]),
+ m_numSilf(numSilf),
+ m_maxSegments(maxSegments),
+ m_maxCmapGid(face.glyphs().numGlyphs()),
+ m_spaceGid(face.cmap()[0x20]),
+ m_zwspGid(face.cmap()[0x200B])
+{
+}
+
+#endif
+
diff --git a/gfx/graphite2/src/Segment.cpp b/gfx/graphite2/src/Segment.cpp
new file mode 100644
index 000000000..3020bfd36
--- /dev/null
+++ b/gfx/graphite2/src/Segment.cpp
@@ -0,0 +1,545 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/UtfCodec.h"
+#include <cstring>
+#include <cstdlib>
+
+#include "inc/bits.h"
+#include "inc/Segment.h"
+#include "graphite2/Font.h"
+#include "inc/CharInfo.h"
+#include "inc/debug.h"
+#include "inc/Slot.h"
+#include "inc/Main.h"
+#include "inc/CmapCache.h"
+#include "inc/Collider.h"
+#include "graphite2/Segment.h"
+
+
+using namespace graphite2;
+
+Segment::Segment(unsigned int numchars, const Face* face, uint32 script, int textDir)
+: m_freeSlots(NULL),
+ m_freeJustifies(NULL),
+ m_charinfo(new CharInfo[numchars]),
+ m_collisions(NULL),
+ m_face(face),
+ m_silf(face->chooseSilf(script)),
+ m_first(NULL),
+ m_last(NULL),
+ m_bufSize(numchars + 10),
+ m_numGlyphs(numchars),
+ m_numCharinfo(numchars),
+ m_passBits(m_silf->aPassBits() ? -1 : 0),
+ m_defaultOriginal(0),
+ m_dir(textDir),
+ m_flags(((m_silf->flags() & 0x20) != 0) << 1)
+{
+ freeSlot(newSlot());
+ m_bufSize = log_binary(numchars)+1;
+}
+
+Segment::~Segment()
+{
+ for (SlotRope::iterator i = m_slots.begin(); i != m_slots.end(); ++i)
+ free(*i);
+ for (AttributeRope::iterator i = m_userAttrs.begin(); i != m_userAttrs.end(); ++i)
+ free(*i);
+ for (JustifyRope::iterator i = m_justifies.begin(); i != m_justifies.end(); ++i)
+ free(*i);
+ delete[] m_charinfo;
+ free(m_collisions);
+}
+
+#ifndef GRAPHITE2_NSEGCACHE
+SegmentScopeState Segment::setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength)
+{
+ SegmentScopeState state;
+ state.numGlyphsOutsideScope = m_numGlyphs - subLength;
+ state.realFirstSlot = m_first;
+ state.slotBeforeScope = firstSlot->prev();
+ state.slotAfterScope = lastSlot->next();
+ state.realLastSlot = m_last;
+ firstSlot->prev(NULL);
+ lastSlot->next(NULL);
+ assert(m_defaultOriginal == 0);
+ m_defaultOriginal = firstSlot->original();
+ m_numGlyphs = subLength;
+ m_first = firstSlot;
+ m_last = lastSlot;
+ return state;
+}
+
+void Segment::removeScope(SegmentScopeState & state)
+{
+ m_numGlyphs = state.numGlyphsOutsideScope + m_numGlyphs;
+ if (state.slotBeforeScope)
+ {
+ state.slotBeforeScope->next(m_first);
+ m_first->prev(state.slotBeforeScope);
+ m_first = state.realFirstSlot;
+ }
+ if (state.slotAfterScope)
+ {
+ state.slotAfterScope->prev(m_last);
+ m_last->next(state.slotAfterScope);
+ m_last = state.realLastSlot;
+ }
+ m_defaultOriginal = 0;
+}
+
+#if 0
+void Segment::append(const Segment &other)
+{
+ Rect bbox = other.m_bbox + m_advance;
+
+ m_slots.insert(m_slots.end(), other.m_slots.begin(), other.m_slots.end());
+ CharInfo* pNewCharInfo = new CharInfo[m_numCharinfo+other.m_numCharinfo]; //since CharInfo has no constructor, this doesn't do much
+ for (unsigned int i=0 ; i<m_numCharinfo ; ++i)
+ pNewCharInfo[i] = m_charinfo[i];
+ m_last->next(other.m_first);
+ other.m_last->prev(m_last);
+ m_userAttrs.insert(m_userAttrs.end(), other.m_userAttrs.begin(), other.m_userAttrs.end());
+
+ delete[] m_charinfo;
+ m_charinfo = pNewCharInfo;
+ pNewCharInfo += m_numCharinfo ;
+ for (unsigned int i=0 ; i<m_numCharinfo ; ++i)
+ pNewCharInfo[i] = other.m_charinfo[i];
+
+ m_numCharinfo += other.m_numCharinfo;
+ m_numGlyphs += other.m_numGlyphs;
+ m_advance = m_advance + other.m_advance;
+ m_bbox = m_bbox.widen(bbox);
+ m_passBits &= other.passBits();
+}
+#endif
+#endif // GRAPHITE2_NSEGCACHE
+
+void Segment::appendSlot(int id, int cid, int gid, int iFeats, size_t coffset)
+{
+ Slot *aSlot = newSlot();
+
+ if (!aSlot) return;
+ m_charinfo[id].init(cid);
+ m_charinfo[id].feats(iFeats);
+ m_charinfo[id].base(coffset);
+ const GlyphFace * theGlyph = m_face->glyphs().glyphSafe(gid);
+ m_charinfo[id].breakWeight(theGlyph ? theGlyph->attrs()[m_silf->aBreak()] : 0);
+
+ aSlot->child(NULL);
+ aSlot->setGlyph(this, gid, theGlyph);
+ aSlot->originate(id);
+ aSlot->before(id);
+ aSlot->after(id);
+ if (m_last) m_last->next(aSlot);
+ aSlot->prev(m_last);
+ m_last = aSlot;
+ if (!m_first) m_first = aSlot;
+ if (theGlyph && m_silf->aPassBits())
+ m_passBits &= theGlyph->attrs()[m_silf->aPassBits()]
+ | (m_silf->numPasses() > 16 ? (theGlyph->attrs()[m_silf->aPassBits() + 1] << 16) : 0);
+}
+
+Slot *Segment::newSlot()
+{
+ if (!m_freeSlots)
+ {
+ // check that the segment doesn't grow indefinintely
+ if (m_numGlyphs > m_numCharinfo * MAX_SEG_GROWTH_FACTOR)
+ return NULL;
+ int numUser = m_silf->numUser();
+#if !defined GRAPHITE2_NTRACING
+ if (m_face->logger()) ++numUser;
+#endif
+ Slot *newSlots = grzeroalloc<Slot>(m_bufSize);
+ int16 *newAttrs = grzeroalloc<int16>(m_bufSize * numUser);
+ if (!newSlots || !newAttrs)
+ {
+ free(newSlots);
+ free(newAttrs);
+ return NULL;
+ }
+ for (size_t i = 0; i < m_bufSize; i++)
+ {
+ ::new (newSlots + i) Slot(newAttrs + i * numUser);
+ newSlots[i].next(newSlots + i + 1);
+ }
+ newSlots[m_bufSize - 1].next(NULL);
+ newSlots[0].next(NULL);
+ m_slots.push_back(newSlots);
+ m_userAttrs.push_back(newAttrs);
+ m_freeSlots = (m_bufSize > 1)? newSlots + 1 : NULL;
+ return newSlots;
+ }
+ Slot *res = m_freeSlots;
+ m_freeSlots = m_freeSlots->next();
+ res->next(NULL);
+ return res;
+}
+
+void Segment::freeSlot(Slot *aSlot)
+{
+ if (m_last == aSlot) m_last = aSlot->prev();
+ if (m_first == aSlot) m_first = aSlot->next();
+ if (aSlot->attachedTo())
+ aSlot->attachedTo()->removeChild(aSlot);
+ while (aSlot->firstChild())
+ {
+ if (aSlot->firstChild()->attachedTo() == aSlot)
+ {
+ aSlot->firstChild()->attachTo(NULL);
+ aSlot->removeChild(aSlot->firstChild());
+ }
+ else
+ aSlot->firstChild(NULL);
+ }
+ // reset the slot incase it is reused
+ ::new (aSlot) Slot(aSlot->userAttrs());
+ memset(aSlot->userAttrs(), 0, m_silf->numUser() * sizeof(int16));
+ // Update generation counter for debug
+#if !defined GRAPHITE2_NTRACING
+ if (m_face->logger())
+ ++aSlot->userAttrs()[m_silf->numUser()];
+#endif
+ // update next pointer
+ if (!m_freeSlots)
+ aSlot->next(NULL);
+ else
+ aSlot->next(m_freeSlots);
+ m_freeSlots = aSlot;
+}
+
+SlotJustify *Segment::newJustify()
+{
+ if (!m_freeJustifies)
+ {
+ const size_t justSize = SlotJustify::size_of(m_silf->numJustLevels());
+ byte *justs = grzeroalloc<byte>(justSize * m_bufSize);
+ if (!justs) return NULL;
+ for (int i = m_bufSize - 2; i >= 0; --i)
+ {
+ SlotJustify *p = reinterpret_cast<SlotJustify *>(justs + justSize * i);
+ SlotJustify *next = reinterpret_cast<SlotJustify *>(justs + justSize * (i + 1));
+ p->next = next;
+ }
+ m_freeJustifies = (SlotJustify *)justs;
+ m_justifies.push_back(m_freeJustifies);
+ }
+ SlotJustify *res = m_freeJustifies;
+ m_freeJustifies = m_freeJustifies->next;
+ res->next = NULL;
+ return res;
+}
+
+void Segment::freeJustify(SlotJustify *aJustify)
+{
+ int numJust = m_silf->numJustLevels();
+ if (m_silf->numJustLevels() <= 0) numJust = 1;
+ aJustify->next = m_freeJustifies;
+ memset(aJustify->values, 0, numJust*SlotJustify::NUMJUSTPARAMS*sizeof(int16));
+ m_freeJustifies = aJustify;
+}
+
+#ifndef GRAPHITE2_NSEGCACHE
+void Segment::splice(size_t offset, size_t length, Slot * const startSlot,
+ Slot * endSlot, const Slot * srcSlot,
+ const size_t numGlyphs)
+{
+ size_t numChars = length;
+ extendLength(numGlyphs - length);
+ // remove any extra
+ if (numGlyphs < length)
+ {
+ Slot * end = endSlot->next();
+ do
+ {
+ endSlot = endSlot->prev();
+ freeSlot(endSlot->next());
+ } while (numGlyphs < --length);
+ endSlot->next(end);
+ if (end)
+ end->prev(endSlot);
+ }
+ else
+ {
+ // insert extra slots if needed
+ while (numGlyphs > length)
+ {
+ Slot * extra = newSlot();
+ if (!extra) return;
+ extra->prev(endSlot);
+ extra->next(endSlot->next());
+ endSlot->next(extra);
+ if (extra->next())
+ extra->next()->prev(extra);
+ if (m_last == endSlot)
+ m_last = extra;
+ endSlot = extra;
+ ++length;
+ }
+ }
+
+ endSlot = endSlot->next();
+ assert(numGlyphs == length);
+ assert(offset + numChars <= m_numCharinfo);
+ Slot * indexmap[eMaxSpliceSize*3];
+ assert(numGlyphs < sizeof indexmap/sizeof *indexmap);
+ Slot * slot = startSlot;
+ for (uint16 i=0; i < numGlyphs; slot = slot->next(), ++i)
+ indexmap[i] = slot;
+
+ for (slot = startSlot; slot != endSlot; slot = slot->next(), srcSlot = srcSlot->next())
+ {
+ slot->set(*srcSlot, offset, m_silf->numUser(), m_silf->numJustLevels(), numChars);
+ if (srcSlot->attachedTo()) slot->attachTo(indexmap[srcSlot->attachedTo()->index()]);
+ if (srcSlot->nextSibling()) slot->m_sibling = indexmap[srcSlot->nextSibling()->index()];
+ if (srcSlot->firstChild()) slot->m_child = indexmap[srcSlot->firstChild()->index()];
+ }
+}
+#endif // GRAPHITE2_NSEGCACHE
+
+// reverse the slots but keep diacritics in their same position after their bases
+void Segment::reverseSlots()
+{
+ m_dir = m_dir ^ 64; // invert the reverse flag
+ if (m_first == m_last) return; // skip 0 or 1 glyph runs
+
+ Slot *t = 0;
+ Slot *curr = m_first;
+ Slot *tlast;
+ Slot *tfirst;
+ Slot *out = 0;
+
+ while (curr && getSlotBidiClass(curr) == 16)
+ curr = curr->next();
+ if (!curr) return;
+ tfirst = curr->prev();
+ tlast = curr;
+
+ while (curr)
+ {
+ if (getSlotBidiClass(curr) == 16)
+ {
+ Slot *d = curr->next();
+ while (d && getSlotBidiClass(d) == 16)
+ d = d->next();
+
+ d = d ? d->prev() : m_last;
+ Slot *p = out->next(); // one after the diacritics. out can't be null
+ if (p)
+ p->prev(d);
+ else
+ tlast = d;
+ t = d->next();
+ d->next(p);
+ curr->prev(out);
+ out->next(curr);
+ }
+ else // will always fire first time round the loop
+ {
+ if (out)
+ out->prev(curr);
+ t = curr->next();
+ curr->next(out);
+ out = curr;
+ }
+ curr = t;
+ }
+ out->prev(tfirst);
+ if (tfirst)
+ tfirst->next(out);
+ else
+ m_first = out;
+ m_last = tlast;
+}
+
+void Segment::linkClusters(Slot *s, Slot * end)
+{
+ end = end->next();
+
+ for (; s != end && !s->isBase(); s = s->next());
+ Slot * ls = s;
+
+ if (m_dir & 1)
+ {
+ for (; s != end; s = s->next())
+ {
+ if (!s->isBase()) continue;
+
+ s->sibling(ls);
+ ls = s;
+ }
+ }
+ else
+ {
+ for (; s != end; s = s->next())
+ {
+ if (!s->isBase()) continue;
+
+ ls->sibling(s);
+ ls = s;
+ }
+ }
+}
+
+Position Segment::positionSlots(const Font *font, Slot * iStart, Slot * iEnd, bool isRtl, bool isFinal)
+{
+ Position currpos(0., 0.);
+ float clusterMin = 0.;
+ Rect bbox;
+ bool reorder = (currdir() != isRtl);
+
+ if (reorder)
+ {
+ Slot *temp;
+ reverseSlots();
+ temp = iStart;
+ iStart = iEnd;
+ iEnd = temp;
+ }
+ if (!iStart) iStart = m_first;
+ if (!iEnd) iEnd = m_last;
+
+ if (!iStart || !iEnd) // only true for empty segments
+ return currpos;
+
+ if (isRtl)
+ {
+ for (Slot * s = iEnd, * const end = iStart->prev(); s && s != end; s = s->prev())
+ {
+ if (s->isBase())
+ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal);
+ }
+ }
+ else
+ {
+ for (Slot * s = iStart, * const end = iEnd->next(); s && s != end; s = s->next())
+ {
+ if (s->isBase())
+ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal);
+ }
+ }
+ if (reorder)
+ reverseSlots();
+ return currpos;
+}
+
+
+void Segment::associateChars(int offset, int numChars)
+{
+ int i = 0, j = 0;
+ CharInfo *c, *cend;
+ for (c = m_charinfo + offset, cend = m_charinfo + offset + numChars; c != cend; ++c)
+ {
+ c->before(-1);
+ c->after(-1);
+ }
+ for (Slot * s = m_first; s; s->index(i++), s = s->next())
+ {
+ j = s->before();
+ if (j < 0) continue;
+
+ for (const int after = s->after(); j <= after; ++j)
+ {
+ c = charinfo(j);
+ if (c->before() == -1 || i < c->before()) c->before(i);
+ if (c->after() < i) c->after(i);
+ }
+ }
+ for (Slot *s = m_first; s; s = s->next())
+ {
+ int a;
+ for (a = s->after() + 1; a < offset + numChars && charinfo(a)->after() < 0; ++a)
+ { charinfo(a)->after(s->index()); }
+ --a;
+ s->after(a);
+
+ for (a = s->before() - 1; a >= offset && charinfo(a)->before() < 0; --a)
+ { charinfo(a)->before(s->index()); }
+ ++a;
+ s->before(a);
+ }
+}
+
+
+template <typename utf_iter>
+inline void process_utf_data(Segment & seg, const Face & face, const int fid, utf_iter c, size_t n_chars)
+{
+ const Cmap & cmap = face.cmap();
+ int slotid = 0;
+
+ const typename utf_iter::codeunit_type * const base = c;
+ for (; n_chars; --n_chars, ++c, ++slotid)
+ {
+ const uint32 usv = *c;
+ uint16 gid = cmap[usv];
+ if (!gid) gid = face.findPseudo(usv);
+ seg.appendSlot(slotid, usv, gid, fid, c - base);
+ }
+}
+
+
+bool Segment::read_text(const Face *face, const Features* pFeats/*must not be NULL*/, gr_encform enc, const void* pStart, size_t nChars)
+{
+ assert(face);
+ assert(pFeats);
+ if (!m_charinfo) return false;
+
+ // utf iterator is self recovering so we don't care about the error state of the iterator.
+ switch (enc)
+ {
+ case gr_utf8: process_utf_data(*this, *face, addFeatures(*pFeats), utf8::const_iterator(pStart), nChars); break;
+ case gr_utf16: process_utf_data(*this, *face, addFeatures(*pFeats), utf16::const_iterator(pStart), nChars); break;
+ case gr_utf32: process_utf_data(*this, *face, addFeatures(*pFeats), utf32::const_iterator(pStart), nChars); break;
+ }
+ return true;
+}
+
+void Segment::doMirror(uint16 aMirror)
+{
+ Slot * s;
+ for (s = m_first; s; s = s->next())
+ {
+ unsigned short g = glyphAttr(s->gid(), aMirror);
+ if (g && (!(dir() & 4) || !glyphAttr(s->gid(), aMirror + 1)))
+ s->setGlyph(this, g);
+ }
+}
+
+bool Segment::initCollisions()
+{
+ m_collisions = grzeroalloc<SlotCollision>(slotCount());
+ if (!m_collisions) return false;
+
+ for (Slot *p = m_first; p; p = p->next())
+ if (p->index() < slotCount())
+ ::new (collisionInfo(p)) SlotCollision(this, p);
+ else
+ return false;
+ return true;
+}
diff --git a/gfx/graphite2/src/Silf.cpp b/gfx/graphite2/src/Silf.cpp
new file mode 100644
index 000000000..e36b50289
--- /dev/null
+++ b/gfx/graphite2/src/Silf.cpp
@@ -0,0 +1,438 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cstdlib>
+#include "graphite2/Segment.h"
+#include "inc/debug.h"
+#include "inc/Endian.h"
+#include "inc/Silf.h"
+#include "inc/Segment.h"
+#include "inc/Rule.h"
+#include "inc/Error.h"
+
+
+using namespace graphite2;
+
+namespace { static const uint32 ERROROFFSET = 0xFFFFFFFF; }
+
+Silf::Silf() throw()
+: m_passes(0),
+ m_pseudos(0),
+ m_classOffsets(0),
+ m_classData(0),
+ m_justs(0),
+ m_numPasses(0),
+ m_numJusts(0),
+ m_sPass(0),
+ m_pPass(0),
+ m_jPass(0),
+ m_bPass(0),
+ m_flags(0),
+ m_dir(0),
+ m_aPseudo(0),
+ m_aBreak(0),
+ m_aUser(0),
+ m_aBidi(0),
+ m_aMirror(0),
+ m_aPassBits(0),
+ m_iMaxComp(0),
+ m_aCollision(0),
+ m_aLig(0),
+ m_numPseudo(0),
+ m_nClass(0),
+ m_nLinear(0),
+ m_gEndLine(0)
+{
+ memset(&m_silfinfo, 0, sizeof m_silfinfo);
+}
+
+Silf::~Silf() throw()
+{
+ releaseBuffers();
+}
+
+void Silf::releaseBuffers() throw()
+{
+ delete [] m_passes;
+ delete [] m_pseudos;
+ free(m_classOffsets);
+ free(m_classData);
+ free(m_justs);
+ m_passes= 0;
+ m_pseudos = 0;
+ m_classOffsets = 0;
+ m_classData = 0;
+ m_justs = 0;
+}
+
+
+bool Silf::readGraphite(const byte * const silf_start, size_t lSilf, Face& face, uint32 version)
+{
+ const byte * p = silf_start,
+ * const silf_end = p + lSilf;
+ Error e;
+
+ if (e.test(version >= 0x00060000, E_BADSILFVERSION))
+ {
+ releaseBuffers(); return face.error(e);
+ }
+ if (version >= 0x00030000)
+ {
+ if (e.test(lSilf < 28, E_BADSIZE)) { releaseBuffers(); return face.error(e); }
+ be::skip<int32>(p); // ruleVersion
+ be::skip<uint16>(p,2); // passOffset & pseudosOffset
+ }
+ else if (e.test(lSilf < 20, E_BADSIZE)) { releaseBuffers(); return face.error(e); }
+ const uint16 maxGlyph = be::read<uint16>(p);
+ m_silfinfo.extra_ascent = be::read<uint16>(p);
+ m_silfinfo.extra_descent = be::read<uint16>(p);
+ m_numPasses = be::read<uint8>(p);
+ m_sPass = be::read<uint8>(p);
+ m_pPass = be::read<uint8>(p);
+ m_jPass = be::read<uint8>(p);
+ m_bPass = be::read<uint8>(p);
+ m_flags = be::read<uint8>(p);
+ be::skip<uint8>(p,2); // max{Pre,Post}Context.
+ m_aPseudo = be::read<uint8>(p);
+ m_aBreak = be::read<uint8>(p);
+ m_aBidi = be::read<uint8>(p);
+ m_aMirror = be::read<uint8>(p);
+ m_aPassBits = be::read<uint8>(p);
+
+ // Read Justification levels.
+ m_numJusts = be::read<uint8>(p);
+ if (e.test(maxGlyph >= face.glyphs().numGlyphs(), E_BADMAXGLYPH)
+ || e.test(p + m_numJusts * 8 >= silf_end, E_BADNUMJUSTS))
+ {
+ releaseBuffers(); return face.error(e);
+ }
+
+ if (m_numJusts)
+ {
+ m_justs = gralloc<Justinfo>(m_numJusts);
+ if (e.test(!m_justs, E_OUTOFMEM)) return face.error(e);
+
+ for (uint8 i = 0; i < m_numJusts; i++)
+ {
+ ::new(m_justs + i) Justinfo(p[0], p[1], p[2], p[3]);
+ be::skip<byte>(p,8);
+ }
+ }
+
+ if (e.test(p + sizeof(uint16) + sizeof(uint8)*8 >= silf_end, E_BADENDJUSTS)) { releaseBuffers(); return face.error(e); }
+ m_aLig = be::read<uint16>(p);
+ m_aUser = be::read<uint8>(p);
+ m_iMaxComp = be::read<uint8>(p);
+ m_dir = be::read<uint8>(p) - 1;
+ m_aCollision = be::read<uint8>(p);
+ be::skip<byte>(p,3);
+ be::skip<uint16>(p, be::read<uint8>(p)); // don't need critical features yet
+ be::skip<byte>(p); // reserved
+ if (e.test(p >= silf_end, E_BADCRITFEATURES)) { releaseBuffers(); return face.error(e); }
+ be::skip<uint32>(p, be::read<uint8>(p)); // don't use scriptTag array.
+ if (e.test(p + sizeof(uint16) + sizeof(uint32) >= silf_end, E_BADSCRIPTTAGS)) { releaseBuffers(); return face.error(e); }
+ m_gEndLine = be::read<uint16>(p); // lbGID
+ const byte * o_passes = p;
+ uint32 passes_start = be::read<uint32>(p);
+
+ const size_t num_attrs = face.glyphs().numAttrs();
+ if (e.test(m_aPseudo >= num_attrs, E_BADAPSEUDO)
+ || e.test(m_aBreak >= num_attrs, E_BADABREAK)
+ || e.test(m_aBidi >= num_attrs, E_BADABIDI)
+ || e.test(m_aMirror>= num_attrs, E_BADAMIRROR)
+ || e.test(m_aCollision && m_aCollision >= num_attrs - 5, E_BADACOLLISION)
+ || e.test(m_numPasses > 128, E_BADNUMPASSES) || e.test(passes_start >= lSilf, E_BADPASSESSTART)
+ || e.test(m_pPass < m_sPass, E_BADPASSBOUND) || e.test(m_pPass > m_numPasses, E_BADPPASS) || e.test(m_sPass > m_numPasses, E_BADSPASS)
+ || e.test(m_jPass < m_pPass, E_BADJPASSBOUND) || e.test(m_jPass > m_numPasses, E_BADJPASS)
+ || e.test((m_bPass != 0xFF && (m_bPass < m_jPass || m_bPass > m_numPasses)), E_BADBPASS)
+ || e.test(m_aLig > 127, E_BADALIG))
+ {
+ releaseBuffers();
+ return face.error(e);
+ }
+ be::skip<uint32>(p, m_numPasses);
+ if (e.test(unsigned(p - silf_start) + sizeof(uint16) >= passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); }
+ m_numPseudo = be::read<uint16>(p);
+ be::skip<uint16>(p, 3); // searchPseudo, pseudoSelector, pseudoShift
+ m_pseudos = new Pseudo[m_numPseudo];
+ if (e.test(unsigned(p - silf_start) + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO)
+ || e.test(!m_pseudos, E_OUTOFMEM))
+ {
+ releaseBuffers(); return face.error(e);
+ }
+ for (int i = 0; i < m_numPseudo; i++)
+ {
+ m_pseudos[i].uid = be::read<uint32>(p);
+ m_pseudos[i].gid = be::read<uint16>(p);
+ }
+
+ const size_t clen = readClassMap(p, passes_start + silf_start - p, version, e);
+ m_passes = new Pass[m_numPasses];
+ if (e || e.test(clen > unsigned(passes_start + silf_start - p), E_BADPASSESSTART)
+ || e.test(!m_passes, E_OUTOFMEM))
+ { releaseBuffers(); return face.error(e); }
+
+ for (size_t i = 0; i < m_numPasses; ++i)
+ {
+ uint32 pass_start = be::read<uint32>(o_passes);
+ uint32 pass_end = be::peek<uint32>(o_passes);
+ face.error_context((face.error_context() & 0xFF00) + EC_ASILF + (i << 16));
+ if (e.test(pass_start > pass_end, E_BADPASSSTART)
+ || e.test(pass_start < passes_start, E_BADPASSSTART)
+ || e.test(pass_end > lSilf, E_BADPASSEND)) {
+ releaseBuffers(); return face.error(e);
+ }
+
+ enum passtype pt = PASS_TYPE_UNKNOWN;
+ if (i >= m_jPass) pt = PASS_TYPE_JUSTIFICATION;
+ else if (i >= m_pPass) pt = PASS_TYPE_POSITIONING;
+ else if (i >= m_sPass) pt = PASS_TYPE_SUBSTITUTE;
+ else pt = PASS_TYPE_LINEBREAK;
+
+ m_passes[i].init(this);
+ if (!m_passes[i].readPass(silf_start + pass_start, pass_end - pass_start, pass_start, face, pt,
+ version, e))
+ {
+ releaseBuffers();
+ return false;
+ }
+ }
+
+ // fill in gr_faceinfo
+ m_silfinfo.upem = face.glyphs().unitsPerEm();
+ m_silfinfo.has_bidi_pass = (m_bPass != 0xFF);
+ m_silfinfo.justifies = (m_numJusts != 0) || (m_jPass < m_pPass);
+ m_silfinfo.line_ends = (m_flags & 1);
+ m_silfinfo.space_contextuals = gr_faceinfo::gr_space_contextuals((m_flags >> 2) & 0x7);
+ return true;
+}
+
+template<typename T> inline uint32 Silf::readClassOffsets(const byte *&p, size_t data_len, Error &e)
+{
+ const T cls_off = 2*sizeof(uint16) + sizeof(T)*(m_nClass+1);
+ const size_t max_off = (be::peek<T>(p + sizeof(T)*m_nClass) - cls_off)/sizeof(uint16);
+ // Check that the last+1 offset is less than or equal to the class map length.
+ if (e.test(be::peek<T>(p) != cls_off, E_MISALIGNEDCLASSES)
+ || e.test(max_off > (data_len - cls_off)/sizeof(uint16), E_HIGHCLASSOFFSET))
+ return ERROROFFSET;
+
+ // Read in all the offsets.
+ m_classOffsets = gralloc<uint32>(m_nClass+1);
+ if (e.test(!m_classOffsets, E_OUTOFMEM)) return ERROROFFSET;
+ for (uint32 * o = m_classOffsets, * const o_end = o + m_nClass + 1; o != o_end; ++o)
+ {
+ *o = (be::read<T>(p) - cls_off)/sizeof(uint16);
+ if (e.test(*o > max_off, E_HIGHCLASSOFFSET))
+ return ERROROFFSET;
+ }
+ return max_off;
+}
+
+size_t Silf::readClassMap(const byte *p, size_t data_len, uint32 version, Error &e)
+{
+ if (e.test(data_len < sizeof(uint16)*2, E_BADCLASSSIZE)) return ERROROFFSET;
+
+ m_nClass = be::read<uint16>(p);
+ m_nLinear = be::read<uint16>(p);
+
+ // Check that numLinear < numClass,
+ // that there is at least enough data for numClasses offsets.
+ if (e.test(m_nLinear > m_nClass, E_TOOMANYLINEAR)
+ || e.test((m_nClass + 1) * (version >= 0x00040000 ? sizeof(uint32) : sizeof(uint16)) > (data_len - 4), E_CLASSESTOOBIG))
+ return ERROROFFSET;
+
+ uint32 max_off;
+ if (version >= 0x00040000)
+ max_off = readClassOffsets<uint32>(p, data_len, e);
+ else
+ max_off = readClassOffsets<uint16>(p, data_len, e);
+
+ if (max_off == ERROROFFSET) return ERROROFFSET;
+
+ if (e.test((int)max_off < m_nLinear + (m_nClass - m_nLinear) * 6, E_CLASSESTOOBIG))
+ return ERROROFFSET;
+
+ // Check the linear offsets are sane, these must be monotonically increasing.
+ for (const uint32 *o = m_classOffsets, * const o_end = o + m_nLinear; o != o_end; ++o)
+ if (e.test(o[0] > o[1], E_BADCLASSOFFSET))
+ return ERROROFFSET;
+
+ // Fortunately the class data is all uint16s so we can decode these now
+ m_classData = gralloc<uint16>(max_off);
+ if (e.test(!m_classData, E_OUTOFMEM)) return ERROROFFSET;
+ for (uint16 *d = m_classData, * const d_end = d + max_off; d != d_end; ++d)
+ *d = be::read<uint16>(p);
+
+ // Check the lookup class invariants for each non-linear class
+ for (const uint32 *o = m_classOffsets + m_nLinear, * const o_end = m_classOffsets + m_nClass; o != o_end; ++o)
+ {
+ const uint16 * lookup = m_classData + *o;
+ if (e.test(*o + 4 > max_off, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off
+ || e.test(lookup[0] == 0 // A LookupClass with no looks is a suspicious thing ...
+ || lookup[0] * 2 + *o + 4 > max_off // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off]
+ || lookup[3] + lookup[1] != lookup[0], E_BADCLASSLOOKUPINFO) // rangeShift: numIDs - searchRange
+ || e.test(((o[1] - *o) & 1) != 0, ERROROFFSET)) // glyphs are in pairs so difference must be even.
+ return ERROROFFSET;
+ }
+
+ return max_off;
+}
+
+uint16 Silf::findPseudo(uint32 uid) const
+{
+ for (int i = 0; i < m_numPseudo; i++)
+ if (m_pseudos[i].uid == uid) return m_pseudos[i].gid;
+ return 0;
+}
+
+uint16 Silf::findClassIndex(uint16 cid, uint16 gid) const
+{
+ if (cid > m_nClass) return -1;
+
+ const uint16 * cls = m_classData + m_classOffsets[cid];
+ if (cid < m_nLinear) // output class being used for input, shouldn't happen
+ {
+ for (unsigned int i = 0, n = m_classOffsets[cid + 1] - m_classOffsets[cid]; i < n; ++i, ++cls)
+ if (*cls == gid) return i;
+ return -1;
+ }
+ else
+ {
+ const uint16 * min = cls + 4, // lookups array
+ * max = min + cls[0]*2; // lookups aray is numIDs (cls[0]) uint16 pairs long
+ do
+ {
+ const uint16 * p = min + (-2 & ((max-min)/2));
+ if (p[0] > gid) max = p;
+ else min = p;
+ }
+ while (max - min > 2);
+ return min[0] == gid ? min[1] : -1;
+ }
+}
+
+uint16 Silf::getClassGlyph(uint16 cid, unsigned int index) const
+{
+ if (cid > m_nClass) return 0;
+
+ uint32 loc = m_classOffsets[cid];
+ if (cid < m_nLinear)
+ {
+ if (index < m_classOffsets[cid + 1] - loc)
+ return m_classData[index + loc];
+ }
+ else // input class being used for output. Shouldn't happen
+ {
+ for (unsigned int i = loc + 4; i < m_classOffsets[cid + 1]; i += 2)
+ if (m_classData[i + 1] == index) return m_classData[i];
+ }
+ return 0;
+}
+
+
+bool Silf::runGraphite(Segment *seg, uint8 firstPass, uint8 lastPass, int dobidi) const
+{
+ assert(seg != 0);
+ unsigned int maxSize = seg->slotCount() * MAX_SEG_GROWTH_FACTOR;
+ SlotMap map(*seg, m_dir, maxSize);
+ FiniteStateMachine fsm(map, seg->getFace()->logger());
+ vm::Machine m(map);
+ uint8 lbidi = m_bPass;
+#if !defined GRAPHITE2_NTRACING
+ json * const dbgout = seg->getFace()->logger();
+#endif
+
+ if (lastPass == 0)
+ {
+ if (firstPass == lastPass && lbidi == 0xFF)
+ return true;
+ lastPass = m_numPasses;
+ }
+ if ((firstPass < lbidi || (dobidi && firstPass == lbidi)) && (lastPass >= lbidi || (dobidi && lastPass + 1 == lbidi)))
+ lastPass++;
+ else
+ lbidi = 0xFF;
+
+ for (size_t i = firstPass; i < lastPass; ++i)
+ {
+ // bidi and mirroring
+ if (i == lbidi)
+ {
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ {
+ *dbgout << json::item << json::object
+// << "pindex" << i // for debugging
+ << "id" << -1
+ << "slotsdir" << (seg->currdir() ? "rtl" : "ltr")
+ << "passdir" << (m_dir & 1 ? "rtl" : "ltr")
+ << "slots" << json::array;
+ seg->positionSlots(0, 0, 0, seg->currdir());
+ for(Slot * s = seg->first(); s; s = s->next())
+ *dbgout << dslot(seg, s);
+ *dbgout << json::close
+ << "rules" << json::array << json::close
+ << json::close;
+ }
+#endif
+ if (seg->currdir() != (m_dir & 1))
+ seg->reverseSlots();
+ if (m_aMirror && (seg->dir() & 3) == 3)
+ seg->doMirror(m_aMirror);
+ --i;
+ lbidi = lastPass;
+ --lastPass;
+ continue;
+ }
+
+#if !defined GRAPHITE2_NTRACING
+ if (dbgout)
+ {
+ *dbgout << json::item << json::object
+// << "pindex" << i // for debugging
+ << "id" << i+1
+ << "slotsdir" << (seg->currdir() ? "rtl" : "ltr")
+ << "passdir" << ((m_dir & 1) ^ m_passes[i].reverseDir() ? "rtl" : "ltr")
+ << "slots" << json::array;
+ seg->positionSlots(0, 0, 0, seg->currdir());
+ for(Slot * s = seg->first(); s; s = s->next())
+ *dbgout << dslot(seg, s);
+ *dbgout << json::close;
+ }
+#endif
+
+ // test whether to reorder, prepare for positioning
+ bool reverse = (lbidi == 0xFF) && (seg->currdir() != ((m_dir & 1) ^ m_passes[i].reverseDir()));
+ if ((i >= 32 || (seg->passBits() & (1 << i)) == 0 || m_passes[i].collisionLoops())
+ && !m_passes[i].runGraphite(m, fsm, reverse))
+ return false;
+ // only subsitution passes can change segment length, cached subsegments are short for their text
+ if (m.status() != vm::Machine::finished
+ || (seg->slotCount() && seg->slotCount() > maxSize))
+ return false;
+ }
+ return true;
+}
diff --git a/gfx/graphite2/src/Slot.cpp b/gfx/graphite2/src/Slot.cpp
new file mode 100644
index 000000000..4227327c4
--- /dev/null
+++ b/gfx/graphite2/src/Slot.cpp
@@ -0,0 +1,535 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/Silf.h"
+#include "inc/CharInfo.h"
+#include "inc/Rule.h"
+#include "inc/Collider.h"
+
+
+using namespace graphite2;
+
+Slot::Slot(int16 *user_attrs) :
+ m_next(NULL), m_prev(NULL),
+ m_glyphid(0), m_realglyphid(0), m_original(0), m_before(0), m_after(0),
+ m_index(0), m_parent(NULL), m_child(NULL), m_sibling(NULL),
+ m_position(0, 0), m_shift(0, 0), m_advance(0, 0),
+ m_attach(0, 0), m_with(0, 0), m_just(0.),
+ m_flags(0), m_attLevel(0), m_bidiCls(-1), m_bidiLevel(0),
+ m_userAttr(user_attrs), m_justs(NULL)
+{
+}
+
+// take care, this does not copy any of the GrSlot pointer fields
+void Slot::set(const Slot & orig, int charOffset, size_t sizeAttr, size_t justLevels, size_t numChars)
+{
+ // leave m_next and m_prev unchanged
+ m_glyphid = orig.m_glyphid;
+ m_realglyphid = orig.m_realglyphid;
+ m_original = orig.m_original + charOffset;
+ if (charOffset + int(orig.m_before) < 0)
+ m_before = 0;
+ else
+ m_before = orig.m_before + charOffset;
+ if (charOffset <= 0 && orig.m_after + charOffset >= numChars)
+ m_after = numChars - 1;
+ else
+ m_after = orig.m_after + charOffset;
+ m_parent = NULL;
+ m_child = NULL;
+ m_sibling = NULL;
+ m_position = orig.m_position;
+ m_shift = orig.m_shift;
+ m_advance = orig.m_advance;
+ m_attach = orig.m_attach;
+ m_with = orig.m_with;
+ m_flags = orig.m_flags;
+ m_attLevel = orig.m_attLevel;
+ m_bidiCls = orig.m_bidiCls;
+ m_bidiLevel = orig.m_bidiLevel;
+ if (m_userAttr && orig.m_userAttr)
+ memcpy(m_userAttr, orig.m_userAttr, sizeAttr * sizeof(*m_userAttr));
+ if (m_justs && orig.m_justs)
+ memcpy(m_justs, orig.m_justs, SlotJustify::size_of(justLevels));
+}
+
+void Slot::update(int /*numGrSlots*/, int numCharInfo, Position &relpos)
+{
+ m_before += numCharInfo;
+ m_after += numCharInfo;
+ m_position = m_position + relpos;
+}
+
+Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth)
+{
+ SlotCollision *coll = NULL;
+ if (depth > 100 || (attrLevel && m_attLevel > attrLevel)) return Position(0, 0);
+ float scale = font ? font->scale() : 1.0f;
+ Position shift(m_shift.x * (rtl * -2 + 1) + m_just, m_shift.y);
+ float tAdvance = m_advance.x + m_just;
+ if (isFinal && (coll = seg->collisionInfo(this)))
+ {
+ const Position &collshift = coll->offset();
+ if (!(coll->flags() & SlotCollision::COLL_KERN) || rtl)
+ shift = shift + collshift;
+ }
+ const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(glyph());
+ if (font)
+ {
+ scale = font->scale();
+ shift *= scale;
+ if (font->isHinted() && glyphFace)
+ tAdvance = (m_advance.x - glyphFace->theAdvance().x + m_just) * scale + font->advance(glyph());
+ else
+ tAdvance *= scale;
+ }
+ Position res;
+
+ m_position = base + shift;
+ if (!m_parent)
+ {
+ res = base + Position(tAdvance, m_advance.y * scale);
+ clusterMin = m_position.x;
+ }
+ else
+ {
+ float tAdv;
+ m_position += (m_attach - m_with) * scale;
+ tAdv = m_advance.x >= 0.5f ? m_position.x + tAdvance - shift.x : 0.f;
+ res = Position(tAdv, 0);
+ if ((m_advance.x >= 0.5f || m_position.x < 0) && m_position.x < clusterMin) clusterMin = m_position.x;
+ }
+
+ if (glyphFace)
+ {
+ Rect ourBbox = glyphFace->theBBox() * scale + m_position;
+ bbox = bbox.widen(ourBbox);
+ }
+
+ if (m_child && m_child != this && m_child->attachedTo() == this)
+ {
+ Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1);
+ if ((!m_parent || m_advance.x >= 0.5f) && tRes.x > res.x) res = tRes;
+ }
+
+ if (m_parent && m_sibling && m_sibling != this && m_sibling->attachedTo() == m_parent)
+ {
+ Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1);
+ if (tRes.x > res.x) res = tRes;
+ }
+
+ if (!m_parent && clusterMin < base.x)
+ {
+ Position adj = Position(m_position.x - clusterMin, 0.);
+ res += adj;
+ m_position += adj;
+ if (m_child) m_child->floodShift(adj);
+ }
+ return res;
+}
+
+int32 Slot::clusterMetric(const Segment *seg, uint8 metric, uint8 attrLevel, bool rtl)
+{
+ Position base;
+ if (glyph() >= seg->getFace()->glyphs().numGlyphs())
+ return 0;
+ Rect bbox = seg->theGlyphBBoxTemporary(glyph());
+ float clusterMin = 0.;
+ Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin, rtl, false);
+
+ switch (metrics(metric))
+ {
+ case kgmetLsb :
+ return bbox.bl.x;
+ case kgmetRsb :
+ return res.x - bbox.tr.x;
+ case kgmetBbTop :
+ return bbox.tr.y;
+ case kgmetBbBottom :
+ return bbox.bl.y;
+ case kgmetBbLeft :
+ return bbox.bl.x;
+ case kgmetBbRight :
+ return bbox.tr.x;
+ case kgmetBbWidth :
+ return bbox.tr.x - bbox.bl.x;
+ case kgmetBbHeight :
+ return bbox.tr.y - bbox.bl.y;
+ case kgmetAdvWidth :
+ return res.x;
+ case kgmetAdvHeight :
+ return res.y;
+ default :
+ return 0;
+ }
+}
+
+#define SLOTGETCOLATTR(x) { SlotCollision *c = seg->collisionInfo(this); return c ? int(c-> x) : 0; }
+
+int Slot::getAttr(const Segment *seg, attrCode ind, uint8 subindex) const
+{
+ if (ind == gr_slatUserDefnV1)
+ {
+ ind = gr_slatUserDefn;
+ subindex = 0;
+ if (seg->numAttrs() == 0)
+ return 0;
+ }
+ else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth)
+ {
+ int indx = ind - gr_slatJStretch;
+ return getJustify(seg, indx / 5, indx % 5);
+ }
+
+ switch (ind)
+ {
+ case gr_slatAdvX : return int(m_advance.x);
+ case gr_slatAdvY : return int(m_advance.y);
+ case gr_slatAttTo : return m_parent ? 1 : 0;
+ case gr_slatAttX : return int(m_attach.x);
+ case gr_slatAttY : return int(m_attach.y);
+ case gr_slatAttXOff :
+ case gr_slatAttYOff : return 0;
+ case gr_slatAttWithX : return int(m_with.x);
+ case gr_slatAttWithY : return int(m_with.y);
+ case gr_slatAttWithXOff:
+ case gr_slatAttWithYOff:return 0;
+ case gr_slatAttLevel : return m_attLevel;
+ case gr_slatBreak : return seg->charinfo(m_original)->breakWeight();
+ case gr_slatCompRef : return 0;
+ case gr_slatDir : return seg->dir() & 1;
+ case gr_slatInsert : return isInsertBefore();
+ case gr_slatPosX : return int(m_position.x); // but need to calculate it
+ case gr_slatPosY : return int(m_position.y);
+ case gr_slatShiftX : return int(m_shift.x);
+ case gr_slatShiftY : return int(m_shift.y);
+ case gr_slatMeasureSol: return -1; // err what's this?
+ case gr_slatMeasureEol: return -1;
+ case gr_slatJWidth: return int(m_just);
+ case gr_slatUserDefn : return m_userAttr[subindex];
+ case gr_slatSegSplit : return seg->charinfo(m_original)->flags() & 3;
+ case gr_slatBidiLevel: return m_bidiLevel;
+ case gr_slatColFlags : { SlotCollision *c = seg->collisionInfo(this); return c ? c->flags() : 0; }
+ case gr_slatColLimitblx : SLOTGETCOLATTR(limit().bl.x)
+ case gr_slatColLimitbly : SLOTGETCOLATTR(limit().bl.y)
+ case gr_slatColLimittrx : SLOTGETCOLATTR(limit().tr.x)
+ case gr_slatColLimittry : SLOTGETCOLATTR(limit().tr.y)
+ case gr_slatColShiftx : SLOTGETCOLATTR(offset().x)
+ case gr_slatColShifty : SLOTGETCOLATTR(offset().y)
+ case gr_slatColMargin : SLOTGETCOLATTR(margin())
+ case gr_slatColMarginWt : SLOTGETCOLATTR(marginWt())
+ case gr_slatColExclGlyph : SLOTGETCOLATTR(exclGlyph())
+ case gr_slatColExclOffx : SLOTGETCOLATTR(exclOffset().x)
+ case gr_slatColExclOffy : SLOTGETCOLATTR(exclOffset().y)
+ case gr_slatSeqClass : SLOTGETCOLATTR(seqClass())
+ case gr_slatSeqProxClass : SLOTGETCOLATTR(seqProxClass())
+ case gr_slatSeqOrder : SLOTGETCOLATTR(seqOrder())
+ case gr_slatSeqAboveXoff : SLOTGETCOLATTR(seqAboveXoff())
+ case gr_slatSeqAboveWt : SLOTGETCOLATTR(seqAboveWt())
+ case gr_slatSeqBelowXlim : SLOTGETCOLATTR(seqBelowXlim())
+ case gr_slatSeqBelowWt : SLOTGETCOLATTR(seqBelowWt())
+ case gr_slatSeqValignHt : SLOTGETCOLATTR(seqValignHt())
+ case gr_slatSeqValignWt : SLOTGETCOLATTR(seqValignWt())
+ default : return 0;
+ }
+}
+
+#define SLOTCOLSETATTR(x) { \
+ SlotCollision *c = seg->collisionInfo(this); \
+ if (c) { c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \
+ break; }
+#define SLOTCOLSETCOMPLEXATTR(t, y, x) { \
+ SlotCollision *c = seg->collisionInfo(this); \
+ if (c) { \
+ const t &s = c-> y; \
+ c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \
+ break; }
+
+void Slot::setAttr(Segment *seg, attrCode ind, uint8 subindex, int16 value, const SlotMap & map)
+{
+ if (ind == gr_slatUserDefnV1)
+ {
+ ind = gr_slatUserDefn;
+ subindex = 0;
+ if (seg->numAttrs() == 0)
+ return;
+ }
+ else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth)
+ {
+ int indx = ind - gr_slatJStretch;
+ return setJustify(seg, indx / 5, indx % 5, value);
+ }
+
+ switch (ind)
+ {
+ case gr_slatAdvX : m_advance.x = value; break;
+ case gr_slatAdvY : m_advance.y = value; break;
+ case gr_slatAttTo :
+ {
+ const uint16 idx = uint16(value);
+ if (idx < map.size() && map[idx])
+ {
+ Slot *other = map[idx];
+ if (other == this || other == m_parent || other->isCopied()) break;
+ if (m_parent) { m_parent->removeChild(this); attachTo(NULL); }
+ Slot *pOther = other;
+ int count = 0;
+ bool foundOther = false;
+ while (pOther)
+ {
+ ++count;
+ if (pOther == this) foundOther = true;
+ pOther = pOther->attachedTo();
+ }
+ for (pOther = m_child; pOther; pOther = pOther->m_child)
+ ++count;
+ for (pOther = m_sibling; pOther; pOther = pOther->m_sibling)
+ ++count;
+ if (count < 100 && !foundOther && other->child(this))
+ {
+ attachTo(other);
+ if ((map.dir() != 0) ^ (idx > subindex))
+ m_with = Position(advance(), 0);
+ else // normal match to previous root
+ m_attach = Position(other->advance(), 0);
+ }
+ }
+ break;
+ }
+ case gr_slatAttX : m_attach.x = value; break;
+ case gr_slatAttY : m_attach.y = value; break;
+ case gr_slatAttXOff :
+ case gr_slatAttYOff : break;
+ case gr_slatAttWithX : m_with.x = value; break;
+ case gr_slatAttWithY : m_with.y = value; break;
+ case gr_slatAttWithXOff :
+ case gr_slatAttWithYOff : break;
+ case gr_slatAttLevel :
+ m_attLevel = byte(value);
+ break;
+ case gr_slatBreak :
+ seg->charinfo(m_original)->breakWeight(value);
+ break;
+ case gr_slatCompRef : break; // not sure what to do here
+ case gr_slatDir : break;
+ case gr_slatInsert :
+ markInsertBefore(value? true : false);
+ break;
+ case gr_slatPosX : break; // can't set these here
+ case gr_slatPosY : break;
+ case gr_slatShiftX : m_shift.x = value; break;
+ case gr_slatShiftY : m_shift.y = value; break;
+ case gr_slatMeasureSol : break;
+ case gr_slatMeasureEol : break;
+ case gr_slatJWidth : just(value); break;
+ case gr_slatSegSplit : seg->charinfo(m_original)->addflags(value & 3); break;
+ case gr_slatUserDefn : m_userAttr[subindex] = value; break;
+ case gr_slatColFlags : {
+ SlotCollision *c = seg->collisionInfo(this);
+ if (c)
+ c->setFlags(value);
+ break; }
+ case gr_slatColLimitblx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(value, s.bl.y), s.tr)))
+ case gr_slatColLimitbly : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(s.bl.x, value), s.tr)))
+ case gr_slatColLimittrx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(value, s.tr.y))))
+ case gr_slatColLimittry : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(s.tr.x, value))))
+ case gr_slatColMargin : SLOTCOLSETATTR(setMargin(value))
+ case gr_slatColMarginWt : SLOTCOLSETATTR(setMarginWt(value))
+ case gr_slatColExclGlyph : SLOTCOLSETATTR(setExclGlyph(value))
+ case gr_slatColExclOffx : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(value, s.y)))
+ case gr_slatColExclOffy : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(s.x, value)))
+ case gr_slatSeqClass : SLOTCOLSETATTR(setSeqClass(value))
+ case gr_slatSeqProxClass : SLOTCOLSETATTR(setSeqProxClass(value))
+ case gr_slatSeqOrder : SLOTCOLSETATTR(setSeqOrder(value))
+ case gr_slatSeqAboveXoff : SLOTCOLSETATTR(setSeqAboveXoff(value))
+ case gr_slatSeqAboveWt : SLOTCOLSETATTR(setSeqAboveWt(value))
+ case gr_slatSeqBelowXlim : SLOTCOLSETATTR(setSeqBelowXlim(value))
+ case gr_slatSeqBelowWt : SLOTCOLSETATTR(setSeqBelowWt(value))
+ case gr_slatSeqValignHt : SLOTCOLSETATTR(setSeqValignHt(value))
+ case gr_slatSeqValignWt : SLOTCOLSETATTR(setSeqValignWt(value))
+ default :
+ break;
+ }
+}
+
+int Slot::getJustify(const Segment *seg, uint8 level, uint8 subindex) const
+{
+ if (level && level >= seg->silf()->numJustLevels()) return 0;
+
+ if (m_justs)
+ return m_justs->values[level * SlotJustify::NUMJUSTPARAMS + subindex];
+
+ if (level >= seg->silf()->numJustLevels()) return 0;
+ Justinfo *jAttrs = seg->silf()->justAttrs() + level;
+
+ switch (subindex) {
+ case 0 : return seg->glyphAttr(gid(), jAttrs->attrStretch());
+ case 1 : return seg->glyphAttr(gid(), jAttrs->attrShrink());
+ case 2 : return seg->glyphAttr(gid(), jAttrs->attrStep());
+ case 3 : return seg->glyphAttr(gid(), jAttrs->attrWeight());
+ case 4 : return 0; // not been set yet, so clearly 0
+ default: return 0;
+ }
+}
+
+void Slot::setJustify(Segment *seg, uint8 level, uint8 subindex, int16 value)
+{
+ if (level && level >= seg->silf()->numJustLevels()) return;
+ if (!m_justs)
+ {
+ SlotJustify *j = seg->newJustify();
+ if (!j) return;
+ j->LoadSlot(this, seg);
+ m_justs = j;
+ }
+ m_justs->values[level * SlotJustify::NUMJUSTPARAMS + subindex] = value;
+}
+
+bool Slot::child(Slot *ap)
+{
+ if (this == ap) return false;
+ else if (ap == m_child) return true;
+ else if (!m_child)
+ m_child = ap;
+ else
+ return m_child->sibling(ap);
+ return true;
+}
+
+bool Slot::sibling(Slot *ap)
+{
+ if (this == ap) return false;
+ else if (ap == m_sibling) return true;
+ else if (!m_sibling || !ap)
+ m_sibling = ap;
+ else
+ return m_sibling->sibling(ap);
+ return true;
+}
+
+bool Slot::removeChild(Slot *ap)
+{
+ if (this == ap || !m_child || !ap) return false;
+ else if (ap == m_child)
+ {
+ Slot *nSibling = m_child->nextSibling();
+ m_child->nextSibling(NULL);
+ m_child = nSibling;
+ return true;
+ }
+ for (Slot *p = m_child; p; p = p->m_sibling)
+ {
+ if (p->m_sibling && p->m_sibling == ap)
+ {
+ p->m_sibling = p->m_sibling->m_sibling;
+ ap->nextSibling(NULL);
+ return true;
+ }
+ }
+ return false;
+}
+
+void Slot::setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph)
+{
+ m_glyphid = glyphid;
+ m_bidiCls = -1;
+ if (!theGlyph)
+ {
+ theGlyph = seg->getFace()->glyphs().glyphSafe(glyphid);
+ if (!theGlyph)
+ {
+ m_realglyphid = 0;
+ m_advance = Position(0.,0.);
+ return;
+ }
+ }
+ m_realglyphid = theGlyph->attrs()[seg->silf()->aPseudo()];
+ if (m_realglyphid > seg->getFace()->glyphs().numGlyphs())
+ m_realglyphid = 0;
+ const GlyphFace *aGlyph = theGlyph;
+ if (m_realglyphid)
+ {
+ aGlyph = seg->getFace()->glyphs().glyphSafe(m_realglyphid);
+ if (!aGlyph) aGlyph = theGlyph;
+ }
+ m_advance = Position(aGlyph->theAdvance().x, 0.);
+ if (seg->silf()->aPassBits())
+ {
+ seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()]);
+ if (seg->silf()->numPasses() > 16)
+ seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()+1] << 16);
+ }
+}
+
+void Slot::floodShift(Position adj, int depth)
+{
+ if (depth > 100)
+ return;
+ m_position += adj;
+ if (m_child) m_child->floodShift(adj, depth + 1);
+ if (m_sibling) m_sibling->floodShift(adj, depth + 1);
+}
+
+void SlotJustify::LoadSlot(const Slot *s, const Segment *seg)
+{
+ for (int i = seg->silf()->numJustLevels() - 1; i >= 0; --i)
+ {
+ Justinfo *justs = seg->silf()->justAttrs() + i;
+ int16 *v = values + i * NUMJUSTPARAMS;
+ v[0] = seg->glyphAttr(s->gid(), justs->attrStretch());
+ v[1] = seg->glyphAttr(s->gid(), justs->attrShrink());
+ v[2] = seg->glyphAttr(s->gid(), justs->attrStep());
+ v[3] = seg->glyphAttr(s->gid(), justs->attrWeight());
+ }
+}
+
+Slot * Slot::nextInCluster(const Slot *s) const
+{
+ Slot *base;
+ if (s->firstChild())
+ return s->firstChild();
+ else if (s->nextSibling())
+ return s->nextSibling();
+ while ((base = s->attachedTo()))
+ {
+ // if (base->firstChild() == s && base->nextSibling())
+ if (base->nextSibling())
+ return base->nextSibling();
+ s = base;
+ }
+ return NULL;
+}
+
+bool Slot::isChildOf(const Slot *base) const
+{
+ for (Slot *p = m_parent; p; p = p->m_parent)
+ if (p == base)
+ return true;
+ return false;
+}
+
diff --git a/gfx/graphite2/src/Sparse.cpp b/gfx/graphite2/src/Sparse.cpp
new file mode 100644
index 000000000..aa4311366
--- /dev/null
+++ b/gfx/graphite2/src/Sparse.cpp
@@ -0,0 +1,62 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cassert>
+#include "inc/Sparse.h"
+#include "inc/bits.h"
+
+using namespace graphite2;
+
+const sparse::chunk sparse::empty_chunk = {0,0};
+
+sparse::~sparse() throw()
+{
+ if (m_array.map == &empty_chunk) return;
+ free(m_array.values);
+}
+
+
+sparse::mapped_type sparse::operator [] (const key_type k) const throw()
+{
+ mapped_type g = key_type(k/SIZEOF_CHUNK - m_nchunks) >> (sizeof k*8 - 1);
+ const chunk & c = m_array.map[g*k/SIZEOF_CHUNK];
+ const mask_t m = c.mask >> (SIZEOF_CHUNK - 1 - (k%SIZEOF_CHUNK));
+ g *= m & 1;
+
+ return g*m_array.values[g*(c.offset + bit_set_count(m >> 1))];
+}
+
+
+size_t sparse::capacity() const throw()
+{
+ size_t n = m_nchunks,
+ s = 0;
+
+ for (const chunk *ci=m_array.map; n; --n, ++ci)
+ s += bit_set_count(ci->mask);
+
+ return s;
+}
diff --git a/gfx/graphite2/src/TtfUtil.cpp b/gfx/graphite2/src/TtfUtil.cpp
new file mode 100644
index 000000000..75e8da11c
--- /dev/null
+++ b/gfx/graphite2/src/TtfUtil.cpp
@@ -0,0 +1,2048 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+/*--------------------------------------------------------------------*//*:Ignore this sentence.
+
+File: TtfUtil.cpp
+Responsibility: Alan Ward
+Last reviewed: Not yet.
+
+Description
+ Implements the methods for TtfUtil class. This file should remain portable to any C++
+ environment by only using standard C++ and the TTF structurs defined in Tt.h.
+-------------------------------------------------------------------------------*//*:End Ignore*/
+
+
+/***********************************************************************************************
+ Include files
+***********************************************************************************************/
+// Language headers
+//#include <algorithm>
+#include <cassert>
+#include <cstddef>
+#include <cstring>
+#include <climits>
+#include <cwchar>
+//#include <stdexcept>
+// Platform headers
+// Module headers
+#include "inc/TtfUtil.h"
+#include "inc/TtfTypes.h"
+#include "inc/Endian.h"
+
+/***********************************************************************************************
+ Forward declarations
+***********************************************************************************************/
+
+/***********************************************************************************************
+ Local Constants and static variables
+***********************************************************************************************/
+namespace
+{
+#ifdef ALL_TTFUTILS
+ // max number of components allowed in composite glyphs
+ const int kMaxGlyphComponents = 8;
+#endif
+
+ template <int R, typename T>
+ inline float fixed_to_float(const T f) {
+ return float(f)/float(2^R);
+ }
+
+/*----------------------------------------------------------------------------------------------
+ Table of standard Postscript glyph names. From Martin Hosken. Disagress with ttfdump.exe
+---------------------------------------------------------------------------------------------*/
+#ifdef ALL_TTFUTILS
+ const int kcPostNames = 258;
+
+ const char * rgPostName[kcPostNames] = {
+ ".notdef", ".null", "nonmarkingreturn", "space", "exclam", "quotedbl", "numbersign",
+ "dollar", "percent", "ampersand", "quotesingle", "parenleft",
+ "parenright", "asterisk", "plus", "comma", "hyphen", "period", "slash",
+ "zero", "one", "two", "three", "four", "five", "six", "seven", "eight",
+ "nine", "colon", "semicolon", "less", "equal", "greater", "question",
+ "at", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
+ "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
+ "bracketleft", "backslash", "bracketright", "asciicircum",
+ "underscore", "grave", "a", "b", "c", "d", "e", "f", "g", "h", "i",
+ "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w",
+ "x", "y", "z", "braceleft", "bar", "braceright", "asciitilde",
+ "Adieresis", "Aring", "Ccedilla", "Eacute", "Ntilde", "Odieresis",
+ "Udieresis", "aacute", "agrave", "acircumflex", "adieresis", "atilde",
+ "aring", "ccedilla", "eacute", "egrave", "ecircumflex", "edieresis",
+ "iacute", "igrave", "icircumflex", "idieresis", "ntilde", "oacute",
+ "ograve", "ocircumflex", "odieresis", "otilde", "uacute", "ugrave",
+ "ucircumflex", "udieresis", "dagger", "degree", "cent", "sterling",
+ "section", "bullet", "paragraph", "germandbls", "registered",
+ "copyright", "trademark", "acute", "dieresis", "notequal", "AE",
+ "Oslash", "infinity", "plusminus", "lessequal", "greaterequal", "yen",
+ "mu", "partialdiff", "summation", "product", "pi", "integral",
+ "ordfeminine", "ordmasculine", "Omega", "ae", "oslash", "questiondown",
+ "exclamdown", "logicalnot", "radical", "florin", "approxequal",
+ "Delta", "guillemotleft", "guillemotright", "ellipsis", "nonbreakingspace",
+ "Agrave", "Atilde", "Otilde", "OE", "oe", "endash", "emdash",
+ "quotedblleft", "quotedblright", "quoteleft", "quoteright", "divide",
+ "lozenge", "ydieresis", "Ydieresis", "fraction", "currency",
+ "guilsinglleft", "guilsinglright", "fi", "fl", "daggerdbl", "periodcentered",
+ "quotesinglbase", "quotedblbase", "perthousand", "Acircumflex",
+ "Ecircumflex", "Aacute", "Edieresis", "Egrave", "Iacute",
+ "Icircumflex", "Idieresis", "Igrave", "Oacute", "Ocircumflex",
+ "apple", "Ograve", "Uacute", "Ucircumflex", "Ugrave", "dotlessi",
+ "circumflex", "tilde", "macron", "breve", "dotaccent", "ring",
+ "cedilla", "hungarumlaut", "ogonek", "caron", "Lslash", "lslash",
+ "Scaron", "scaron", "Zcaron", "zcaron", "brokenbar", "Eth", "eth",
+ "Yacute", "yacute", "Thorn", "thorn", "minus", "multiply",
+ "onesuperior", "twosuperior", "threesuperior", "onehalf", "onequarter",
+ "threequarters", "franc", "Gbreve", "gbreve", "Idotaccent", "Scedilla",
+ "scedilla", "Cacute", "cacute", "Ccaron", "ccaron",
+ "dcroat" };
+#endif
+
+} // end of namespace
+
+/***********************************************************************************************
+ Methods
+***********************************************************************************************/
+
+/* Note on error processing: The code guards against bad glyph ids being used to look up data
+in open ended tables (loca, hmtx). If the glyph id comes from a cmap this shouldn't happen
+but it seems prudent to check for user errors here. The code does assume that data obtained
+from the TTF file is valid otherwise (though the CheckTable method seeks to check for
+obvious problems that might accompany a change in table versions). For example an invalid
+offset in the loca table which could exceed the size of the glyf table is NOT trapped.
+Likewise if numberOf_LongHorMetrics in the hhea table is wrong, this will NOT be trapped,
+which could cause a lookup in the hmtx table to exceed the table length. Of course, TTF tables
+that are completely corrupt will cause unpredictable results. */
+
+/* Note on composite glyphs: Glyphs that have components that are themselves composites
+are not supported. IsDeepComposite can be used to test for this. False is returned from many
+of the methods in this cases. It is unclear how to build composite glyphs in some cases,
+so this code represents my best guess until test cases can be found. See notes on the high-
+level GlyfPoints method. */
+namespace graphite2
+{
+namespace TtfUtil
+{
+
+
+/*----------------------------------------------------------------------------------------------
+ Get offset and size of the offset table needed to find table directory.
+ Return true if success, false otherwise.
+ lSize excludes any table directory entries.
+----------------------------------------------------------------------------------------------*/
+bool GetHeaderInfo(size_t & lOffset, size_t & lSize)
+{
+ lOffset = 0;
+ lSize = offsetof(Sfnt::OffsetSubTable, table_directory);
+ assert(sizeof(uint32) + 4*sizeof (uint16) == lSize);
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Check the offset table for expected data.
+ Return true if success, false otherwise.
+----------------------------------------------------------------------------------------------*/
+bool CheckHeader(const void * pHdr)
+{
+ const Sfnt::OffsetSubTable * pOffsetTable
+ = reinterpret_cast<const Sfnt::OffsetSubTable *>(pHdr);
+
+ return pHdr && be::swap(pOffsetTable->scaler_type) == Sfnt::OffsetSubTable::TrueTypeWin;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get offset and size of the table directory.
+ Return true if successful, false otherwise.
+----------------------------------------------------------------------------------------------*/
+bool GetTableDirInfo(const void * pHdr, size_t & lOffset, size_t & lSize)
+{
+ const Sfnt::OffsetSubTable * pOffsetTable
+ = reinterpret_cast<const Sfnt::OffsetSubTable *>(pHdr);
+
+ lOffset = offsetof(Sfnt::OffsetSubTable, table_directory);
+ lSize = be::swap(pOffsetTable->num_tables)
+ * sizeof(Sfnt::OffsetSubTable::Entry);
+
+ return true;
+}
+
+
+/*----------------------------------------------------------------------------------------------
+ Get offset and size of the specified table.
+ Return true if successful, false otherwise. On false, offset and size will be 0.
+----------------------------------------------------------------------------------------------*/
+bool GetTableInfo(const Tag TableTag, const void * pHdr, const void * pTableDir,
+ size_t & lOffset, size_t & lSize)
+{
+ const Sfnt::OffsetSubTable * pOffsetTable
+ = reinterpret_cast<const Sfnt::OffsetSubTable *>(pHdr);
+ const size_t num_tables = be::swap(pOffsetTable->num_tables);
+ const Sfnt::OffsetSubTable::Entry
+ * entry_itr = reinterpret_cast<const Sfnt::OffsetSubTable::Entry *>(
+ pTableDir),
+ * const dir_end = entry_itr + num_tables;
+
+ if (num_tables > 40)
+ return false;
+
+ for (;entry_itr != dir_end; ++entry_itr) // 40 - safe guard
+ {
+ if (be::swap(entry_itr->tag) == TableTag)
+ {
+ lOffset = be::swap(entry_itr->offset);
+ lSize = be::swap(entry_itr->length);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Check the specified table. Tests depend on the table type.
+ Return true if successful, false otherwise.
+----------------------------------------------------------------------------------------------*/
+bool CheckTable(const Tag TableId, const void * pTable, size_t lTableSize)
+{
+ using namespace Sfnt;
+
+ if (pTable == 0 || lTableSize < 4) return false;
+
+ switch(TableId)
+ {
+ case Tag::cmap: // cmap
+ {
+ const Sfnt::CharacterCodeMap * const pCmap
+ = reinterpret_cast<const Sfnt::CharacterCodeMap *>(pTable);
+ if (lTableSize < sizeof(Sfnt::CharacterCodeMap))
+ return false;
+ return be::swap(pCmap->version) == 0;
+ }
+
+ case Tag::head: // head
+ {
+ const Sfnt::FontHeader * const pHead
+ = reinterpret_cast<const Sfnt::FontHeader *>(pTable);
+ if (lTableSize < sizeof(Sfnt::FontHeader))
+ return false;
+ bool r = be::swap(pHead->version) == OneFix
+ && be::swap(pHead->magic_number) == FontHeader::MagicNumber
+ && be::swap(pHead->glyph_data_format)
+ == FontHeader::GlypDataFormat
+ && (be::swap(pHead->index_to_loc_format)
+ == FontHeader::ShortIndexLocFormat
+ || be::swap(pHead->index_to_loc_format)
+ == FontHeader::LongIndexLocFormat)
+ && sizeof(FontHeader) <= lTableSize;
+ return r;
+ }
+
+ case Tag::post: // post
+ {
+ const Sfnt::PostScriptGlyphName * const pPost
+ = reinterpret_cast<const Sfnt::PostScriptGlyphName *>(pTable);
+ if (lTableSize < sizeof(Sfnt::PostScriptGlyphName))
+ return false;
+ const fixed format = be::swap(pPost->format);
+ bool r = format == PostScriptGlyphName::Format1
+ || format == PostScriptGlyphName::Format2
+ || format == PostScriptGlyphName::Format3
+ || format == PostScriptGlyphName::Format25;
+ return r;
+ }
+
+ case Tag::hhea: // hhea
+ {
+ const Sfnt::HorizontalHeader * pHhea =
+ reinterpret_cast<const Sfnt::HorizontalHeader *>(pTable);
+ if (lTableSize < sizeof(Sfnt::HorizontalHeader))
+ return false;
+ bool r = be::swap(pHhea->version) == OneFix
+ && be::swap(pHhea->metric_data_format) == 0
+ && sizeof (Sfnt::HorizontalHeader) <= lTableSize;
+ return r;
+ }
+
+ case Tag::maxp: // maxp
+ {
+ const Sfnt::MaximumProfile * pMaxp =
+ reinterpret_cast<const Sfnt::MaximumProfile *>(pTable);
+ if (lTableSize < sizeof(Sfnt::MaximumProfile))
+ return false;
+ bool r = be::swap(pMaxp->version) == OneFix
+ && sizeof(Sfnt::MaximumProfile) <= lTableSize;
+ return r;
+ }
+
+ case Tag::OS_2: // OS/2
+ {
+ const Sfnt::Compatibility * pOs2
+ = reinterpret_cast<const Sfnt::Compatibility *>(pTable);
+ if (be::swap(pOs2->version) == 0)
+ { // OS/2 table version 1 size
+// if (sizeof(Sfnt::Compatibility)
+// - sizeof(uint32)*2 - sizeof(int16)*2
+// - sizeof(uint16)*3 <= lTableSize)
+ if (sizeof(Sfnt::Compatibility0) <= lTableSize)
+ return true;
+ }
+ else if (be::swap(pOs2->version) == 1)
+ { // OS/2 table version 2 size
+// if (sizeof(Sfnt::Compatibility)
+// - sizeof(int16) *2
+// - sizeof(uint16)*3 <= lTableSize)
+ if (sizeof(Sfnt::Compatibility1) <= lTableSize)
+ return true;
+ }
+ else if (be::swap(pOs2->version) == 2)
+ { // OS/2 table version 3 size
+ if (sizeof(Sfnt::Compatibility2) <= lTableSize)
+ return true;
+ }
+ else if (be::swap(pOs2->version) == 3 || be::swap(pOs2->version) == 4)
+ { // OS/2 table version 4 size - version 4 changed the meaning of some fields which we don't use
+ if (sizeof(Sfnt::Compatibility3) <= lTableSize)
+ return true;
+ }
+ else
+ return false;
+ break;
+ }
+
+ case Tag::name:
+ {
+ const Sfnt::FontNames * pName
+ = reinterpret_cast<const Sfnt::FontNames *>(pTable);
+ if (lTableSize < sizeof(Sfnt::FontNames))
+ return false;
+ return be::swap(pName->format) == 0;
+ }
+
+ default:
+ break;
+ }
+
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the number of glyphs in the font. Should never be less than zero.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+size_t GlyphCount(const void * pMaxp)
+{
+ const Sfnt::MaximumProfile * pTable =
+ reinterpret_cast<const Sfnt::MaximumProfile *>(pMaxp);
+ return be::swap(pTable->num_glyphs);
+}
+
+#ifdef ALL_TTFUTILS
+/*----------------------------------------------------------------------------------------------
+ Return the maximum number of components for any composite glyph in the font.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+size_t MaxCompositeComponentCount(const void * pMaxp)
+{
+ const Sfnt::MaximumProfile * pTable =
+ reinterpret_cast<const Sfnt::MaximumProfile *>(pMaxp);
+ return be::swap(pTable->max_component_elements);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Composite glyphs can be composed of glyphs that are themselves composites.
+ This method returns the maximum number of levels like this for any glyph in the font.
+ A non-composite glyph has a level of 1.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+size_t MaxCompositeLevelCount(const void * pMaxp)
+{
+ const Sfnt::MaximumProfile * pTable =
+ reinterpret_cast<const Sfnt::MaximumProfile *>(pMaxp);
+ return be::swap(pTable->max_component_depth);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the number of glyphs in the font according to a differt source.
+ Should never be less than zero. Return -1 on failure.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+size_t LocaGlyphCount(size_t lLocaSize, const void * pHead) //throw(std::domain_error)
+{
+
+ const Sfnt::FontHeader * pTable
+ = reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ if (be::swap(pTable->index_to_loc_format)
+ == Sfnt::FontHeader::ShortIndexLocFormat)
+ // loca entries are two bytes and have been divided by two
+ return (lLocaSize >> 1) - 1;
+
+ if (be::swap(pTable->index_to_loc_format)
+ == Sfnt::FontHeader::LongIndexLocFormat)
+ // loca entries are four bytes
+ return (lLocaSize >> 2) - 1;
+
+ return -1;
+ //throw std::domain_error("head table in inconsistent state. The font may be corrupted");
+}
+#endif
+
+/*----------------------------------------------------------------------------------------------
+ Return the design units the font is designed with
+----------------------------------------------------------------------------------------------*/
+int DesignUnits(const void * pHead)
+{
+ const Sfnt::FontHeader * pTable =
+ reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ return be::swap(pTable->units_per_em);
+}
+
+#ifdef ALL_TTFUTILS
+/*----------------------------------------------------------------------------------------------
+ Return the checksum from the head table, which serves as a unique identifer for the font.
+----------------------------------------------------------------------------------------------*/
+int HeadTableCheckSum(const void * pHead)
+{
+ const Sfnt::FontHeader * pTable =
+ reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ return be::swap(pTable->check_sum_adjustment);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the create time from the head table. This consists of a 64-bit integer, which
+ we return here as two 32-bit integers.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+void HeadTableCreateTime(const void * pHead,
+ unsigned int * pnDateBC, unsigned int * pnDateAD)
+{
+ const Sfnt::FontHeader * pTable =
+ reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ *pnDateBC = be::swap(pTable->created[0]);
+ *pnDateAD = be::swap(pTable->created[1]);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the modify time from the head table.This consists of a 64-bit integer, which
+ we return here as two 32-bit integers.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+void HeadTableModifyTime(const void * pHead,
+ unsigned int * pnDateBC, unsigned int *pnDateAD)
+{
+ const Sfnt::FontHeader * pTable =
+ reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ *pnDateBC = be::swap(pTable->modified[0]);
+ *pnDateAD = be::swap(pTable->modified[1]);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return true if the font is italic.
+----------------------------------------------------------------------------------------------*/
+bool IsItalic(const void * pHead)
+{
+ const Sfnt::FontHeader * pTable =
+ reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ return ((be::swap(pTable->mac_style) & 0x00000002) != 0);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the ascent for the font
+----------------------------------------------------------------------------------------------*/
+int FontAscent(const void * pOs2)
+{
+ const Sfnt::Compatibility * pTable = reinterpret_cast<const Sfnt::Compatibility *>(pOs2);
+
+ return be::swap(pTable->win_ascent);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the descent for the font
+----------------------------------------------------------------------------------------------*/
+int FontDescent(const void * pOs2)
+{
+ const Sfnt::Compatibility * pTable = reinterpret_cast<const Sfnt::Compatibility *>(pOs2);
+
+ return be::swap(pTable->win_descent);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the bold and italic style bits.
+ Return true if successful. false otherwise.
+ In addition to checking the OS/2 table, one could also check
+ the head table's macStyle field (overridden by the OS/2 table on Win)
+ the sub-family name in the name table (though this can contain oblique, dark, etc too)
+----------------------------------------------------------------------------------------------*/
+bool FontOs2Style(const void *pOs2, bool & fBold, bool & fItalic)
+{
+ const Sfnt::Compatibility * pTable = reinterpret_cast<const Sfnt::Compatibility *>(pOs2);
+
+ fBold = (be::swap(pTable->fs_selection) & Sfnt::Compatibility::Bold) != 0;
+ fItalic = (be::swap(pTable->fs_selection) & Sfnt::Compatibility::Italic) != 0;
+
+ return true;
+}
+#endif
+
+/*----------------------------------------------------------------------------------------------
+ Method for searching name table.
+----------------------------------------------------------------------------------------------*/
+bool GetNameInfo(const void * pName, int nPlatformId, int nEncodingId,
+ int nLangId, int nNameId, size_t & lOffset, size_t & lSize)
+{
+ lOffset = 0;
+ lSize = 0;
+
+ const Sfnt::FontNames * pTable = reinterpret_cast<const Sfnt::FontNames *>(pName);
+ uint16 cRecord = be::swap(pTable->count);
+ uint16 nRecordOffset = be::swap(pTable->string_offset);
+ const Sfnt::NameRecord * pRecord = reinterpret_cast<const Sfnt::NameRecord *>(pTable + 1);
+
+ for (int i = 0; i < cRecord; ++i)
+ {
+ if (be::swap(pRecord->platform_id) == nPlatformId &&
+ be::swap(pRecord->platform_specific_id) == nEncodingId &&
+ be::swap(pRecord->language_id) == nLangId &&
+ be::swap(pRecord->name_id) == nNameId)
+ {
+ lOffset = be::swap(pRecord->offset) + nRecordOffset;
+ lSize = be::swap(pRecord->length);
+ return true;
+ }
+ pRecord++;
+ }
+
+ return false;
+}
+
+#ifdef ALL_TTFUTILS
+/*----------------------------------------------------------------------------------------------
+ Return all the lang-IDs that have data for the given name-IDs. Assume that there is room
+ in the return array (langIdList) for 128 items. The purpose of this method is to return
+ a list of all possible lang-IDs.
+----------------------------------------------------------------------------------------------*/
+int GetLangsForNames(const void * pName, int nPlatformId, int nEncodingId,
+ int * nameIdList, int cNameIds, short * langIdList)
+{
+ const Sfnt::FontNames * pTable = reinterpret_cast<const Sfnt::FontNames *>(pName);
+ int cLangIds = 0;
+ uint16 cRecord = be::swap(pTable->count);
+ if (cRecord > 127) return cLangIds;
+ //uint16 nRecordOffset = swapw(pTable->stringOffset);
+ const Sfnt::NameRecord * pRecord = reinterpret_cast<const Sfnt::NameRecord *>(pTable + 1);
+
+ for (int i = 0; i < cRecord; ++i)
+ {
+ if (be::swap(pRecord->platform_id) == nPlatformId &&
+ be::swap(pRecord->platform_specific_id) == nEncodingId)
+ {
+ bool fNameFound = false;
+ int nLangId = be::swap(pRecord->language_id);
+ int nNameId = be::swap(pRecord->name_id);
+ for (int j = 0; j < cNameIds; j++)
+ {
+ if (nNameId == nameIdList[j])
+ {
+ fNameFound = true;
+ break;
+ }
+ }
+ if (fNameFound)
+ {
+ // Add it if it's not there.
+ int ilang;
+ for (ilang = 0; ilang < cLangIds; ilang++)
+ if (langIdList[ilang] == nLangId)
+ break;
+ if (ilang >= cLangIds)
+ {
+ langIdList[cLangIds] = short(nLangId);
+ cLangIds++;
+ }
+ if (cLangIds == 128)
+ return cLangIds;
+ }
+ }
+ pRecord++;
+ }
+
+ return cLangIds;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the offset and size of the font family name in English for the MS Platform with Unicode
+ writing system. The offset is within the pName data. The string is double byte with MSB
+ first.
+----------------------------------------------------------------------------------------------*/
+bool Get31EngFamilyInfo(const void * pName, size_t & lOffset, size_t & lSize)
+{
+ return GetNameInfo(pName, Sfnt::NameRecord::Microsoft, 1, 1033,
+ Sfnt::NameRecord::Family, lOffset, lSize);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the offset and size of the full font name in English for the MS Platform with Unicode
+ writing system. The offset is within the pName data. The string is double byte with MSB
+ first.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+bool Get31EngFullFontInfo(const void * pName, size_t & lOffset, size_t & lSize)
+{
+ return GetNameInfo(pName, Sfnt::NameRecord::Microsoft, 1, 1033,
+ Sfnt::NameRecord::Fullname, lOffset, lSize);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the offset and size of the font family name in English for the MS Platform with Symbol
+ writing system. The offset is within the pName data. The string is double byte with MSB
+ first.
+----------------------------------------------------------------------------------------------*/
+bool Get30EngFamilyInfo(const void * pName, size_t & lOffset, size_t & lSize)
+{
+ return GetNameInfo(pName, Sfnt::NameRecord::Microsoft, 0, 1033,
+ Sfnt::NameRecord::Family, lOffset, lSize);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the offset and size of the full font name in English for the MS Platform with Symbol
+ writing system. The offset is within the pName data. The string is double byte with MSB
+ first.
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+bool Get30EngFullFontInfo(const void * pName, size_t & lOffset, size_t & lSize)
+{
+ return GetNameInfo(pName, Sfnt::NameRecord::Microsoft, 0, 1033,
+ Sfnt::NameRecord::Fullname, lOffset, lSize);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the Glyph ID for a given Postscript name. This method finds the first glyph which
+ matches the requested Postscript name. Ideally every glyph should have a unique Postscript
+ name (except for special names such as .notdef), but this is not always true.
+ On failure return value less than zero.
+ -1 - table search failed
+ -2 - format 3 table (no Postscript glyph info)
+ -3 - other failures
+
+ Note: this method is not currently used by the Graphite engine.
+----------------------------------------------------------------------------------------------*/
+int PostLookup(const void * pPost, size_t lPostSize, const void * pMaxp,
+ const char * pPostName)
+{
+ using namespace Sfnt;
+
+ const Sfnt::PostScriptGlyphName * pTable
+ = reinterpret_cast<const Sfnt::PostScriptGlyphName *>(pPost);
+ fixed format = be::swap(pTable->format);
+
+ if (format == PostScriptGlyphName::Format3)
+ { // format 3 - no Postscript glyph info in font
+ return -2;
+ }
+
+ // search for given Postscript name among the standard names
+ int iPostName = -1; // index in standard names
+ for (int i = 0; i < kcPostNames; i++)
+ {
+ if (!strcmp(pPostName, rgPostName[i]))
+ {
+ iPostName = i;
+ break;
+ }
+ }
+
+ if (format == PostScriptGlyphName::Format1)
+ { // format 1 - use standard Postscript names
+ return iPostName;
+ }
+
+ if (format == PostScriptGlyphName::Format25)
+ {
+ if (iPostName == -1)
+ return -1;
+
+ const PostScriptGlyphName25 * pTable25
+ = static_cast<const PostScriptGlyphName25 *>(pTable);
+ int cnGlyphs = GlyphCount(pMaxp);
+ for (gid16 nGlyphId = 0; nGlyphId < cnGlyphs && nGlyphId < kcPostNames;
+ nGlyphId++)
+ { // glyph_name_index25 contains bytes so no byte swapping needed
+ // search for first glyph id that uses the standard name
+ if (nGlyphId + pTable25->offset[nGlyphId] == iPostName)
+ return nGlyphId;
+ }
+ }
+
+ if (format == PostScriptGlyphName::Format2)
+ { // format 2
+ const PostScriptGlyphName2 * pTable2
+ = static_cast<const PostScriptGlyphName2 *>(pTable);
+
+ int cnGlyphs = be::swap(pTable2->number_of_glyphs);
+
+ if (iPostName != -1)
+ { // did match a standard name, look for first glyph id mapped to that name
+ for (gid16 nGlyphId = 0; nGlyphId < cnGlyphs; nGlyphId++)
+ {
+ if (be::swap(pTable2->glyph_name_index[nGlyphId]) == iPostName)
+ return nGlyphId;
+ }
+ }
+
+ { // did not match a standard name, search font specific names
+ size_t nStrSizeGoal = strlen(pPostName);
+ const char * pFirstGlyphName = reinterpret_cast<const char *>(
+ &pTable2->glyph_name_index[0] + cnGlyphs);
+ const char * pGlyphName = pFirstGlyphName;
+ int iInNames = 0; // index in font specific names
+ bool fFound = false;
+ const char * const endOfTable
+ = reinterpret_cast<const char *>(pTable2) + lPostSize;
+ while (pGlyphName < endOfTable && !fFound)
+ { // search Pascal strings for first matching name
+ size_t nStringSize = size_t(*pGlyphName);
+ if (nStrSizeGoal != nStringSize ||
+ strncmp(pGlyphName + 1, pPostName, nStringSize))
+ { // did not match
+ ++iInNames;
+ pGlyphName += nStringSize + 1;
+ }
+ else
+ { // did match
+ fFound = true;
+ }
+ }
+ if (!fFound)
+ return -1; // no font specific name matches request
+
+ iInNames += kcPostNames;
+ for (gid16 nGlyphId = 0; nGlyphId < cnGlyphs; nGlyphId++)
+ { // search for first glyph id that maps to the found string index
+ if (be::swap(pTable2->glyph_name_index[nGlyphId]) == iInNames)
+ return nGlyphId;
+ }
+ return -1; // no glyph mapped to this index (very strange)
+ }
+ }
+
+ return -3;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Convert a Unicode character string from big endian (MSB first, Motorola) format to little
+ endian (LSB first, Intel) format.
+ nSize is the number of Unicode characters in the string. It should not include any
+ terminating null. If nSize is 0, it is assumed the string is null terminated. nSize
+ defaults to 0.
+ Return true if successful, false otherwise.
+----------------------------------------------------------------------------------------------*/
+void SwapWString(void * pWStr, size_t nSize /* = 0 */) //throw (std::invalid_argument)
+{
+ if (pWStr == 0)
+ {
+// throw std::invalid_argument("null pointer given");
+ return;
+ }
+
+ uint16 * pStr = reinterpret_cast<uint16 *>(pWStr);
+ uint16 * const pStrEnd = pStr + (nSize == 0 ? wcslen((const wchar_t*)pStr) : nSize);
+
+ for (; pStr != pStrEnd; ++pStr)
+ *pStr = be::swap(*pStr);
+// std::transform(pStr, pStrEnd, pStr, read<uint16>);
+
+// for (int i = 0; i < nSize; i++)
+// { // swap the wide characters in the string
+// pStr[i] = utf16(be::swap(uint16(pStr[i])));
+// }
+}
+#endif
+
+/*----------------------------------------------------------------------------------------------
+ Get the left-side bearing and and advance width based on the given tables and Glyph ID
+ Return true if successful, false otherwise. On false, one or both value could be INT_MIN
+----------------------------------------------------------------------------------------------*/
+bool HorMetrics(gid16 nGlyphId, const void * pHmtx, size_t lHmtxSize, const void * pHhea,
+ int & nLsb, unsigned int & nAdvWid)
+{
+ const Sfnt::HorizontalMetric * phmtx =
+ reinterpret_cast<const Sfnt::HorizontalMetric *>(pHmtx);
+
+ const Sfnt::HorizontalHeader * phhea =
+ reinterpret_cast<const Sfnt::HorizontalHeader *>(pHhea);
+
+ size_t cLongHorMetrics = be::swap(phhea->num_long_hor_metrics);
+ if (nGlyphId < cLongHorMetrics)
+ { // glyph id is acceptable
+ if ((nGlyphId + 1) * sizeof(Sfnt::HorizontalMetric) > lHmtxSize) return false;
+ nAdvWid = be::swap(phmtx[nGlyphId].advance_width);
+ nLsb = be::swap(phmtx[nGlyphId].left_side_bearing);
+ }
+ else
+ {
+ // guard against bad glyph id
+ size_t lLsbOffset = sizeof(Sfnt::HorizontalMetric) * cLongHorMetrics +
+ sizeof(int16) * (nGlyphId - cLongHorMetrics); // offset in bytes
+ // We test like this as LsbOffset is an offset not a length.
+ if (lLsbOffset >= lHmtxSize - sizeof(int16) || cLongHorMetrics == 0)
+ {
+ nLsb = 0;
+ return false;
+ }
+ nAdvWid = be::swap(phmtx[cLongHorMetrics - 1].advance_width);
+ nLsb = be::peek<int16>(reinterpret_cast<const byte *>(phmtx) + lLsbOffset);
+ }
+
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return a pointer to the requested cmap subtable. By default find the Microsoft Unicode
+ subtable. Pass nEncoding as -1 to find first table that matches only nPlatformId.
+ Return NULL if the subtable cannot be found.
+----------------------------------------------------------------------------------------------*/
+const void * FindCmapSubtable(const void * pCmap, int nPlatformId, /* =3 */ int nEncodingId, /* = 1 */ size_t length)
+{
+ const Sfnt::CharacterCodeMap * pTable = reinterpret_cast<const Sfnt::CharacterCodeMap *>(pCmap);
+ uint16 csuPlatforms = be::swap(pTable->num_subtables);
+ if (length && (sizeof(Sfnt::CharacterCodeMap) + 8 * (csuPlatforms - 1) > length))
+ return NULL;
+ for (int i = 0; i < csuPlatforms; i++)
+ {
+ if (be::swap(pTable->encoding[i].platform_id) == nPlatformId &&
+ (nEncodingId == -1 || be::swap(pTable->encoding[i].platform_specific_id) == nEncodingId))
+ {
+ uint32 offset = be::swap(pTable->encoding[i].offset);
+ const uint8 * pRtn = reinterpret_cast<const uint8 *>(pCmap) + offset;
+ if (length)
+ {
+ if (offset > length - 2) return NULL;
+ uint16 format = be::read<uint16>(pRtn);
+ if (format == 4)
+ {
+ if (offset > length - 4) return NULL;
+ uint16 subTableLength = be::peek<uint16>(pRtn);
+ if (i + 1 == csuPlatforms)
+ {
+ if (subTableLength > length - offset)
+ return NULL;
+ }
+ else if (subTableLength > be::swap(pTable->encoding[i+1].offset))
+ return NULL;
+ }
+ if (format == 12)
+ {
+ if (offset > length - 6) return NULL;
+ uint32 subTableLength = be::peek<uint32>(pRtn);
+ if (i + 1 == csuPlatforms)
+ {
+ if (subTableLength > length - offset)
+ return NULL;
+ }
+ else if (subTableLength > be::swap(pTable->encoding[i+1].offset))
+ return NULL;
+ }
+ }
+ return reinterpret_cast<const uint8 *>(pCmap) + offset;
+ }
+ }
+
+ return 0;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Check the Microsoft Unicode subtable for expected values
+----------------------------------------------------------------------------------------------*/
+bool CheckCmapSubtable4(const void * pCmapSubtable4, const void * pCmapEnd /*, unsigned int maxgid*/)
+{
+ size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable4;
+ if (!pCmapSubtable4) return false;
+ const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable4);
+ // Bob H say some freeware TT fonts have version 1 (eg, CALIGULA.TTF)
+ // so don't check subtable version. 21 Mar 2002 spec changes version to language.
+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 4) return false;
+ const Sfnt::CmapSubTableFormat4 * pTable4 = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtable4);
+ if (table_len < sizeof(*pTable4))
+ return false;
+ uint16 length = be::swap(pTable4->length);
+ if (length > table_len)
+ return false;
+ if (length < sizeof(Sfnt::CmapSubTableFormat4))
+ return false;
+ uint16 nRanges = be::swap(pTable4->seg_count_x2) >> 1;
+ if (!nRanges || length < sizeof(Sfnt::CmapSubTableFormat4) + 4 * nRanges * sizeof(uint16))
+ return false;
+ // check last range is properly terminated
+ uint16 chEnd = be::peek<uint16>(pTable4->end_code + nRanges - 1);
+ if (chEnd != 0xFFFF)
+ return false;
+#if 0
+ int lastend = -1;
+ for (int i = 0; i < nRanges; ++i)
+ {
+ uint16 end = be::peek<uint16>(pTable4->end_code + i);
+ uint16 start = be::peek<uint16>(pTable4->end_code + nRanges + 1 + i);
+ int16 delta = be::peek<int16>(pTable4->end_code + 2*nRanges + 1 + i);
+ uint16 offset = be::peek<uint16>(pTable4->end_code + 3*nRanges + 1 + i);
+ if (lastend >= end || lastend >= start)
+ return false;
+ if (offset)
+ {
+ const uint16 *gstart = pTable4->end_code + 3*nRanges + 1 + i + (offset >> 1);
+ const uint16 *gend = gstart + end - start;
+ if ((char *)gend >= (char *)pCmapSubtable4 + length)
+ return false;
+ while (gstart <= gend)
+ {
+ uint16 g = be::peek<uint16>(gstart++);
+ if (g && ((g + delta) & 0xFFFF) > maxgid)
+ return false;
+ }
+ }
+ else if (((delta + end) & 0xFFFF) > maxgid)
+ return false;
+ lastend = end;
+ }
+#endif
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the Glyph ID for the given Unicode ID in the Microsoft Unicode subtable.
+ (Actually this code only depends on subtable being format 4.)
+ Return 0 if the Unicode ID is not in the subtable.
+----------------------------------------------------------------------------------------------*/
+gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey)
+{
+ const Sfnt::CmapSubTableFormat4 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtabel4);
+
+ uint16 nSeg = be::swap(pTable->seg_count_x2) >> 1;
+
+ uint16 n;
+ const uint16 * pLeft, * pMid;
+ uint16 cMid, chStart, chEnd;
+
+ if (rangeKey)
+ {
+ pMid = &(pTable->end_code[rangeKey]);
+ chEnd = be::peek<uint16>(pMid);
+ }
+ else
+ {
+ // Binary search of the endCode[] array
+ pLeft = &(pTable->end_code[0]);
+ n = nSeg;
+ while (n > 0)
+ {
+ cMid = n >> 1; // Pick an element in the middle
+ pMid = pLeft + cMid;
+ chEnd = be::peek<uint16>(pMid);
+ if (nUnicodeId <= chEnd)
+ {
+ if (cMid == 0 || nUnicodeId > be::peek<uint16>(pMid -1))
+ break; // Must be this seg or none!
+ n = cMid; // Continue on left side, omitting mid point
+ }
+ else
+ {
+ pLeft = pMid + 1; // Continue on right side, omitting mid point
+ n -= (cMid + 1);
+ }
+ }
+
+ if (!n)
+ return 0;
+ }
+
+ // Ok, we're down to one segment and pMid points to the endCode element
+ // Either this is it or none is.
+
+ chStart = be::peek<uint16>(pMid += nSeg + 1);
+ if (chEnd >= nUnicodeId && nUnicodeId >= chStart)
+ {
+ // Found correct segment. Find Glyph Id
+ int16 idDelta = be::peek<uint16>(pMid += nSeg);
+ uint16 idRangeOffset = be::peek<uint16>(pMid += nSeg);
+
+ if (idRangeOffset == 0)
+ return (uint16)(idDelta + nUnicodeId); // must use modulus 2^16
+
+ // Look up value in glyphIdArray
+ const ptrdiff_t offset = (nUnicodeId - chStart) + (idRangeOffset >> 1) +
+ (pMid - reinterpret_cast<const uint16 *>(pTable));
+ if (offset * 2 + 1 >= be::swap<uint16>(pTable->length))
+ return 0;
+ gid16 nGlyphId = be::peek<uint16>(reinterpret_cast<const uint16 *>(pTable)+offset);
+ // If this value is 0, return 0. Else add the idDelta
+ return nGlyphId ? nGlyphId + idDelta : 0;
+ }
+
+ return 0;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the next Unicode value in the cmap. Pass 0 to obtain the first item.
+ Returns 0xFFFF as the last item.
+ pRangeKey is an optional key that is used to optimize the search; its value is the range
+ in which the character is found.
+----------------------------------------------------------------------------------------------*/
+unsigned int CmapSubtable4NextCodepoint(const void *pCmap31, unsigned int nUnicodeId, int * pRangeKey)
+{
+ const Sfnt::CmapSubTableFormat4 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmap31);
+
+ uint16 nRange = be::swap(pTable->seg_count_x2) >> 1;
+
+ uint32 nUnicodePrev = (uint32)nUnicodeId;
+
+ const uint16 * pStartCode = &(pTable->end_code[0])
+ + nRange // length of end code array
+ + 1; // reserved word
+
+ if (nUnicodePrev == 0)
+ {
+ // return the first codepoint.
+ if (pRangeKey)
+ *pRangeKey = 0;
+ return be::peek<uint16>(pStartCode);
+ }
+ else if (nUnicodePrev >= 0xFFFF)
+ {
+ if (pRangeKey)
+ *pRangeKey = nRange - 1;
+ return 0xFFFF;
+ }
+
+ int iRange = (pRangeKey) ? *pRangeKey : 0;
+ // Just in case we have a bad key:
+ while (iRange > 0 && be::peek<uint16>(pStartCode + iRange) > nUnicodePrev)
+ iRange--;
+ while (iRange < nRange - 1 && be::peek<uint16>(pTable->end_code + iRange) < nUnicodePrev)
+ iRange++;
+
+ // Now iRange is the range containing nUnicodePrev.
+ unsigned int nStartCode = be::peek<uint16>(pStartCode + iRange);
+ unsigned int nEndCode = be::peek<uint16>(pTable->end_code + iRange);
+
+ if (nStartCode > nUnicodePrev)
+ // Oops, nUnicodePrev is not in the cmap! Adjust so we get a reasonable
+ // answer this time around.
+ nUnicodePrev = nStartCode - 1;
+
+ if (nEndCode > nUnicodePrev)
+ {
+ // Next is in the same range; it is the next successive codepoint.
+ if (pRangeKey)
+ *pRangeKey = iRange;
+ return nUnicodePrev + 1;
+ }
+
+ // Otherwise the next codepoint is the first one in the next range.
+ // There is guaranteed to be a next range because there must be one that
+ // ends with 0xFFFF.
+ if (pRangeKey)
+ *pRangeKey = iRange + 1;
+ return (iRange + 1 >= nRange) ? 0xFFFF : be::peek<uint16>(pStartCode + iRange + 1);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Check the Microsoft UCS-4 subtable for expected values.
+----------------------------------------------------------------------------------------------*/
+bool CheckCmapSubtable12(const void *pCmapSubtable12, const void *pCmapEnd /*, unsigned int maxgid*/)
+{
+ size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable12;
+ if (!pCmapSubtable12) return false;
+ const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable12);
+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 12)
+ return false;
+ const Sfnt::CmapSubTableFormat12 * pTable12 = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmapSubtable12);
+ if (table_len < sizeof(*pTable12))
+ return false;
+ uint32 length = be::swap(pTable12->length);
+ if (length > table_len)
+ return false;
+ if (length < sizeof(Sfnt::CmapSubTableFormat12))
+ return false;
+ uint32 num_groups = be::swap(pTable12->num_groups);
+ if (num_groups > 0x10000000 || length != (sizeof(Sfnt::CmapSubTableFormat12) + (num_groups - 1) * sizeof(uint32) * 3))
+ return false;
+#if 0
+ for (unsigned int i = 0; i < num_groups; ++i)
+ {
+ if (be::swap(pTable12->group[i].end_char_code) - be::swap(pTable12->group[i].start_char_code) + be::swap(pTable12->group[i].start_glyph_id) > maxgid)
+ return false;
+ if (i > 0 && be::swap(pTable12->group[i].start_char_code) <= be::swap(pTable12->group[i-1].end_char_code))
+ return false;
+ }
+#endif
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the Glyph ID for the given Unicode ID in the Microsoft UCS-4 subtable.
+ (Actually this code only depends on subtable being format 12.)
+ Return 0 if the Unicode ID is not in the subtable.
+----------------------------------------------------------------------------------------------*/
+gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey)
+{
+ const Sfnt::CmapSubTableFormat12 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmap310);
+
+ //uint32 uLength = be::swap(pTable->length); //could use to test for premature end of table
+ uint32 ucGroups = be::swap(pTable->num_groups);
+
+ for (unsigned int i = rangeKey; i < ucGroups; i++)
+ {
+ uint32 uStartCode = be::swap(pTable->group[i].start_char_code);
+ uint32 uEndCode = be::swap(pTable->group[i].end_char_code);
+ if (uUnicodeId >= uStartCode && uUnicodeId <= uEndCode)
+ {
+ uint32 uDiff = uUnicodeId - uStartCode;
+ uint32 uStartGid = be::swap(pTable->group[i].start_glyph_id);
+ return static_cast<gid16>(uStartGid + uDiff);
+ }
+ }
+
+ return 0;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the next Unicode value in the cmap. Pass 0 to obtain the first item.
+ Returns 0x10FFFF as the last item.
+ pRangeKey is an optional key that is used to optimize the search; its value is the range
+ in which the character is found.
+----------------------------------------------------------------------------------------------*/
+unsigned int CmapSubtable12NextCodepoint(const void *pCmap310, unsigned int nUnicodeId, int * pRangeKey)
+{
+ const Sfnt::CmapSubTableFormat12 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmap310);
+
+ int nRange = be::swap(pTable->num_groups);
+
+ uint32 nUnicodePrev = (uint32)nUnicodeId;
+
+ if (nUnicodePrev == 0)
+ {
+ // return the first codepoint.
+ if (pRangeKey)
+ *pRangeKey = 0;
+ return be::swap(pTable->group[0].start_char_code);
+ }
+ else if (nUnicodePrev >= 0x10FFFF)
+ {
+ if (pRangeKey)
+ *pRangeKey = nRange;
+ return 0x10FFFF;
+ }
+
+ int iRange = (pRangeKey) ? *pRangeKey : 0;
+ // Just in case we have a bad key:
+ while (iRange > 0 && be::swap(pTable->group[iRange].start_char_code) > nUnicodePrev)
+ iRange--;
+ while (iRange < nRange - 1 && be::swap(pTable->group[iRange].end_char_code) < nUnicodePrev)
+ iRange++;
+
+ // Now iRange is the range containing nUnicodePrev.
+
+ unsigned int nStartCode = be::swap(pTable->group[iRange].start_char_code);
+ unsigned int nEndCode = be::swap(pTable->group[iRange].end_char_code);
+
+ if (nStartCode > nUnicodePrev)
+ // Oops, nUnicodePrev is not in the cmap! Adjust so we get a reasonable
+ // answer this time around.
+ nUnicodePrev = nStartCode - 1;
+
+ if (nEndCode > nUnicodePrev)
+ {
+ // Next is in the same range; it is the next successive codepoint.
+ if (pRangeKey)
+ *pRangeKey = iRange;
+ return nUnicodePrev + 1;
+ }
+
+ // Otherwise the next codepoint is the first one in the next range, or 10FFFF if we're done.
+ if (pRangeKey)
+ *pRangeKey = iRange + 1;
+ return (iRange + 1 >= nRange) ? 0x10FFFF : be::swap(pTable->group[iRange + 1].start_char_code);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return the offset stored in the loca table for the given Glyph ID.
+ (This offset is into the glyf table.)
+ Return -1 if the lookup failed.
+ Technically this method should return an unsigned long but it is unlikely the offset will
+ exceed 2^31.
+----------------------------------------------------------------------------------------------*/
+size_t LocaLookup(gid16 nGlyphId,
+ const void * pLoca, size_t lLocaSize,
+ const void * pHead) // throw (std::out_of_range)
+{
+ const Sfnt::FontHeader * pTable = reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+ size_t res = -2;
+
+ // CheckTable verifies the index_to_loc_format is valid
+ if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::ShortIndexLocFormat)
+ { // loca entries are two bytes and have been divided by two
+ if (lLocaSize > 1 && nGlyphId + 1u < lLocaSize >> 1) // allow sentinel value to be accessed
+ {
+ const uint16 * pShortTable = reinterpret_cast<const uint16 *>(pLoca);
+ res = be::peek<uint16>(pShortTable + nGlyphId) << 1;
+ if (res == static_cast<size_t>(be::peek<uint16>(pShortTable + nGlyphId + 1) << 1))
+ return -1;
+ }
+ }
+ else if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat)
+ { // loca entries are four bytes
+ if (lLocaSize > 3 && nGlyphId + 1u < lLocaSize >> 2)
+ {
+ const uint32 * pLongTable = reinterpret_cast<const uint32 *>(pLoca);
+ res = be::peek<uint32>(pLongTable + nGlyphId);
+ if (res == static_cast<size_t>(be::peek<uint32>(pLongTable + nGlyphId + 1)))
+ return -1;
+ }
+ }
+
+ // only get here if glyph id was bad
+ return res;
+ //throw std::out_of_range("glyph id out of range for font");
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return a pointer into the glyf table based on the given offset (from LocaLookup).
+ Return NULL on error.
+----------------------------------------------------------------------------------------------*/
+void * GlyfLookup(const void * pGlyf, size_t nGlyfOffset, size_t nTableLen)
+{
+ const uint8 * pByte = reinterpret_cast<const uint8 *>(pGlyf);
+ if (nGlyfOffset + pByte < pByte || nGlyfOffset + sizeof(Sfnt::Glyph) >= nTableLen)
+ return NULL;
+ return const_cast<uint8 *>(pByte + nGlyfOffset);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the bounding box coordinates for a simple glyf entry (non-composite).
+ Return true if successful, false otherwise.
+----------------------------------------------------------------------------------------------*/
+bool GlyfBox(const void * pSimpleGlyf, int & xMin, int & yMin,
+ int & xMax, int & yMax)
+{
+ const Sfnt::Glyph * pGlyph = reinterpret_cast<const Sfnt::Glyph *>(pSimpleGlyf);
+
+ xMin = be::swap(pGlyph->x_min);
+ yMin = be::swap(pGlyph->y_min);
+ xMax = be::swap(pGlyph->x_max);
+ yMax = be::swap(pGlyph->y_max);
+
+ return true;
+}
+
+#ifdef ALL_TTFUTILS
+/*----------------------------------------------------------------------------------------------
+ Return the number of contours for a simple glyf entry (non-composite)
+ Returning -1 means this is a composite glyph
+----------------------------------------------------------------------------------------------*/
+int GlyfContourCount(const void * pSimpleGlyf)
+{
+ const Sfnt::Glyph * pGlyph = reinterpret_cast<const Sfnt::Glyph *>(pSimpleGlyf);
+ return be::swap(pGlyph->number_of_contours); // -1 means composite glyph
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the point numbers for the end points of the glyph contours for a simple
+ glyf entry (non-composite).
+ cnPointsTotal - count of contours from GlyfContourCount(); (same as number of end points)
+ prgnContourEndPoints - should point to a buffer large enough to hold cnPoints integers
+ cnPoints - count of points placed in above range
+ Return true if successful, false otherwise.
+ False could indicate a multi-level composite glyphs.
+----------------------------------------------------------------------------------------------*/
+bool GlyfContourEndPoints(const void * pSimpleGlyf, int * prgnContourEndPoint,
+ int cnPointsTotal, int & cnPoints)
+{
+ const Sfnt::SimpleGlyph * pGlyph = reinterpret_cast<const Sfnt::SimpleGlyph *>(pSimpleGlyf);
+
+ int cContours = be::swap(pGlyph->number_of_contours);
+ if (cContours < 0)
+ return false; // this method isn't supposed handle composite glyphs
+
+ for (int i = 0; i < cContours && i < cnPointsTotal; i++)
+ {
+ prgnContourEndPoint[i] = be::swap(pGlyph->end_pts_of_contours[i]);
+ }
+
+ cnPoints = cContours;
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the points for a simple glyf entry (non-composite)
+ cnPointsTotal - count of points from largest end point obtained from GlyfContourEndPoints
+ prgnX & prgnY - should point to buffers large enough to hold cnPointsTotal integers
+ The ranges are parallel so that coordinates for point(n) are found at offset n in both
+ ranges. This is raw point data with relative coordinates.
+ prgbFlag - should point to a buffer a large enough to hold cnPointsTotal bytes
+ This range is parallel to the prgnX & prgnY
+ cnPoints - count of points placed in above ranges
+ Return true if successful, false otherwise.
+ False could indicate a composite glyph
+----------------------------------------------------------------------------------------------*/
+bool GlyfPoints(const void * pSimpleGlyf, int * prgnX, int * prgnY,
+ char * prgbFlag, int cnPointsTotal, int & cnPoints)
+{
+ using namespace Sfnt;
+
+ const Sfnt::SimpleGlyph * pGlyph = reinterpret_cast<const Sfnt::SimpleGlyph *>(pSimpleGlyf);
+ int cContours = be::swap(pGlyph->number_of_contours);
+ // return false for composite glyph
+ if (cContours <= 0)
+ return false;
+ int cPts = be::swap(pGlyph->end_pts_of_contours[cContours - 1]) + 1;
+ if (cPts > cnPointsTotal)
+ return false;
+
+ // skip over bounding box data & point to byte count of instructions (hints)
+ const uint8 * pbGlyph = reinterpret_cast<const uint8 *>
+ (&pGlyph->end_pts_of_contours[cContours]);
+
+ // skip over hints & point to first flag
+ int cbHints = be::swap(*(uint16 *)pbGlyph);
+ pbGlyph += sizeof(uint16);
+ pbGlyph += cbHints;
+
+ // load flags & point to first x coordinate
+ int iFlag = 0;
+ while (iFlag < cPts)
+ {
+ if (!(*pbGlyph & SimpleGlyph::Repeat))
+ { // flag isn't repeated
+ prgbFlag[iFlag] = (char)*pbGlyph;
+ pbGlyph++;
+ iFlag++;
+ }
+ else
+ { // flag is repeated; count specified by next byte
+ char chFlag = (char)*pbGlyph;
+ pbGlyph++;
+ int cFlags = (int)*pbGlyph;
+ pbGlyph++;
+ prgbFlag[iFlag] = chFlag;
+ iFlag++;
+ for (int i = 0; i < cFlags; i++)
+ {
+ prgbFlag[iFlag + i] = chFlag;
+ }
+ iFlag += cFlags;
+ }
+ }
+ if (iFlag != cPts)
+ return false;
+
+ // load x coordinates
+ iFlag = 0;
+ while (iFlag < cPts)
+ {
+ if (prgbFlag[iFlag] & SimpleGlyph::XShort)
+ {
+ prgnX[iFlag] = *pbGlyph;
+ if (!(prgbFlag[iFlag] & SimpleGlyph::XIsPos))
+ {
+ prgnX[iFlag] = -prgnX[iFlag];
+ }
+ pbGlyph++;
+ }
+ else
+ {
+ if (prgbFlag[iFlag] & SimpleGlyph::XIsSame)
+ {
+ prgnX[iFlag] = 0;
+ // do NOT increment pbGlyph
+ }
+ else
+ {
+ prgnX[iFlag] = be::swap(*(int16 *)pbGlyph);
+ pbGlyph += sizeof(int16);
+ }
+ }
+ iFlag++;
+ }
+
+ // load y coordinates
+ iFlag = 0;
+ while (iFlag < cPts)
+ {
+ if (prgbFlag[iFlag] & SimpleGlyph::YShort)
+ {
+ prgnY[iFlag] = *pbGlyph;
+ if (!(prgbFlag[iFlag] & SimpleGlyph::YIsPos))
+ {
+ prgnY[iFlag] = -prgnY[iFlag];
+ }
+ pbGlyph++;
+ }
+ else
+ {
+ if (prgbFlag[iFlag] & SimpleGlyph::YIsSame)
+ {
+ prgnY[iFlag] = 0;
+ // do NOT increment pbGlyph
+ }
+ else
+ {
+ prgnY[iFlag] = be::swap(*(int16 *)pbGlyph);
+ pbGlyph += sizeof(int16);
+ }
+ }
+ iFlag++;
+ }
+
+ cnPoints = cPts;
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Fill prgnCompId with the component Glyph IDs from pSimpleGlyf.
+ Client must allocate space before calling.
+ pSimpleGlyf - assumed to point to a composite glyph
+ cCompIdTotal - the number of elements in prgnCompId
+ cCompId - the total number of Glyph IDs stored in prgnCompId
+ Return true if successful, false otherwise
+ False could indicate a non-composite glyph or the input array was not big enough
+----------------------------------------------------------------------------------------------*/
+bool GetComponentGlyphIds(const void * pSimpleGlyf, int * prgnCompId,
+ size_t cnCompIdTotal, size_t & cnCompId)
+{
+ using namespace Sfnt;
+
+ if (GlyfContourCount(pSimpleGlyf) >= 0)
+ return false;
+
+ const Sfnt::SimpleGlyph * pGlyph = reinterpret_cast<const Sfnt::SimpleGlyph *>(pSimpleGlyf);
+ // for a composite glyph, the special data begins here
+ const uint8 * pbGlyph = reinterpret_cast<const uint8 *>(&pGlyph->end_pts_of_contours[0]);
+
+ uint16 GlyphFlags;
+ size_t iCurrentComp = 0;
+ do
+ {
+ GlyphFlags = be::swap(*((uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ prgnCompId[iCurrentComp++] = be::swap(*((uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ if (iCurrentComp >= cnCompIdTotal)
+ return false;
+ int nOffset = 0;
+ nOffset += GlyphFlags & CompoundGlyph::Arg1Arg2Words ? 4 : 2;
+ nOffset += GlyphFlags & CompoundGlyph::HaveScale ? 2 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveXAndYScale ? 4 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveTwoByTwo ? 8 : 0;
+ pbGlyph += nOffset;
+ } while (GlyphFlags & CompoundGlyph::MoreComponents);
+
+ cnCompId = iCurrentComp;
+
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return info on how a component glyph is to be placed
+ pSimpleGlyph - assumed to point to a composite glyph
+ nCompId - glyph id for component of interest
+ bOffset - if true, a & b are the x & y offsets for this component
+ if false, b is the point on this component that is attaching to point a on the
+ preceding glyph
+ Return true if successful, false otherwise
+ False could indicate a non-composite glyph or that component wasn't found
+----------------------------------------------------------------------------------------------*/
+bool GetComponentPlacement(const void * pSimpleGlyf, int nCompId,
+ bool fOffset, int & a, int & b)
+{
+ using namespace Sfnt;
+
+ if (GlyfContourCount(pSimpleGlyf) >= 0)
+ return false;
+
+ const Sfnt::SimpleGlyph * pGlyph = reinterpret_cast<const Sfnt::SimpleGlyph *>(pSimpleGlyf);
+ // for a composite glyph, the special data begins here
+ const uint8 * pbGlyph = reinterpret_cast<const uint8 *>(&pGlyph->end_pts_of_contours[0]);
+
+ uint16 GlyphFlags;
+ do
+ {
+ GlyphFlags = be::swap(*((uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ if (be::swap(*((uint16 *)pbGlyph)) == nCompId)
+ {
+ pbGlyph += sizeof(uint16); // skip over glyph id of component
+ fOffset = (GlyphFlags & CompoundGlyph::ArgsAreXYValues) == CompoundGlyph::ArgsAreXYValues;
+
+ if (GlyphFlags & CompoundGlyph::Arg1Arg2Words )
+ {
+ a = be::swap(*(int16 *)pbGlyph);
+ pbGlyph += sizeof(int16);
+ b = be::swap(*(int16 *)pbGlyph);
+ pbGlyph += sizeof(int16);
+ }
+ else
+ { // args are signed bytes
+ a = *pbGlyph++;
+ b = *pbGlyph++;
+ }
+ return true;
+ }
+ pbGlyph += sizeof(uint16); // skip over glyph id of component
+ int nOffset = 0;
+ nOffset += GlyphFlags & CompoundGlyph::Arg1Arg2Words ? 4 : 2;
+ nOffset += GlyphFlags & CompoundGlyph::HaveScale ? 2 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveXAndYScale ? 4 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveTwoByTwo ? 8 : 0;
+ pbGlyph += nOffset;
+ } while (GlyphFlags & CompoundGlyph::MoreComponents);
+
+ // didn't find requested component
+ fOffset = true;
+ a = 0;
+ b = 0;
+ return false;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Return info on how a component glyph is to be transformed
+ pSimpleGlyph - assumed to point to a composite glyph
+ nCompId - glyph id for component of interest
+ flt11, flt11, flt11, flt11 - a 2x2 matrix giving the transform
+ bTransOffset - whether to transform the offset from above method
+ The spec is unclear about the meaning of this flag
+ Currently - initialize to true for MS rasterizer and false for Mac rasterizer, then
+ on return it will indicate whether transform should apply to offset (MSDN CD 10/99)
+ Return true if successful, false otherwise
+ False could indicate a non-composite glyph or that component wasn't found
+----------------------------------------------------------------------------------------------*/
+bool GetComponentTransform(const void * pSimpleGlyf, int nCompId,
+ float & flt11, float & flt12, float & flt21, float & flt22,
+ bool & fTransOffset)
+{
+ using namespace Sfnt;
+
+ if (GlyfContourCount(pSimpleGlyf) >= 0)
+ return false;
+
+ const Sfnt::SimpleGlyph * pGlyph = reinterpret_cast<const Sfnt::SimpleGlyph *>(pSimpleGlyf);
+ // for a composite glyph, the special data begins here
+ const uint8 * pbGlyph = reinterpret_cast<const uint8 *>(&pGlyph->end_pts_of_contours[0]);
+
+ uint16 GlyphFlags;
+ do
+ {
+ GlyphFlags = be::swap(*((uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ if (be::swap(*((uint16 *)pbGlyph)) == nCompId)
+ {
+ pbGlyph += sizeof(uint16); // skip over glyph id of component
+ pbGlyph += GlyphFlags & CompoundGlyph::Arg1Arg2Words ? 4 : 2; // skip over placement data
+
+ if (fTransOffset) // MS rasterizer
+ fTransOffset = !(GlyphFlags & CompoundGlyph::UnscaledOffset);
+ else // Apple rasterizer
+ fTransOffset = (GlyphFlags & CompoundGlyph::ScaledOffset) != 0;
+
+ if (GlyphFlags & CompoundGlyph::HaveScale)
+ {
+ flt11 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ flt12 = 0;
+ flt21 = 0;
+ flt22 = flt11;
+ }
+ else if (GlyphFlags & CompoundGlyph::HaveXAndYScale)
+ {
+ flt11 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ flt12 = 0;
+ flt21 = 0;
+ flt22 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ }
+ else if (GlyphFlags & CompoundGlyph::HaveTwoByTwo)
+ {
+ flt11 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ flt12 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ flt21 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ flt22 = fixed_to_float<14>(be::swap(*(uint16 *)pbGlyph));
+ pbGlyph += sizeof(uint16);
+ }
+ else
+ { // identity transform
+ flt11 = 1.0;
+ flt12 = 0.0;
+ flt21 = 0.0;
+ flt22 = 1.0;
+ }
+ return true;
+ }
+ pbGlyph += sizeof(uint16); // skip over glyph id of component
+ int nOffset = 0;
+ nOffset += GlyphFlags & CompoundGlyph::Arg1Arg2Words ? 4 : 2;
+ nOffset += GlyphFlags & CompoundGlyph::HaveScale ? 2 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveXAndYScale ? 4 : 0;
+ nOffset += GlyphFlags & CompoundGlyph::HaveTwoByTwo ? 8 : 0;
+ pbGlyph += nOffset;
+ } while (GlyphFlags & CompoundGlyph::MoreComponents);
+
+ // didn't find requested component
+ fTransOffset = false;
+ flt11 = 1;
+ flt12 = 0;
+ flt21 = 0;
+ flt22 = 1;
+ return false;
+}
+#endif
+
+/*----------------------------------------------------------------------------------------------
+ Return a pointer into the glyf table based on the given tables and Glyph ID
+ Since this method doesn't check for spaces, it is good to call IsSpace before using it.
+ Return NULL on error.
+----------------------------------------------------------------------------------------------*/
+void * GlyfLookup(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead)
+{
+ // test for valid glyph id
+ // CheckTable verifies the index_to_loc_format is valid
+
+ const Sfnt::FontHeader * pTable
+ = reinterpret_cast<const Sfnt::FontHeader *>(pHead);
+
+ if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::ShortIndexLocFormat)
+ { // loca entries are two bytes (and have been divided by two)
+ if (nGlyphId >= (lLocaSize >> 1) - 1) // don't allow nGlyphId to access sentinel
+ {
+// throw std::out_of_range("glyph id out of range for font");
+ return NULL;
+ }
+ }
+ if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat)
+ { // loca entries are four bytes
+ if (nGlyphId >= (lLocaSize >> 2) - 1)
+ {
+// throw std::out_of_range("glyph id out of range for font");
+ return NULL;
+ }
+ }
+
+ long lGlyfOffset = LocaLookup(nGlyphId, pLoca, lLocaSize, pHead);
+ void * pSimpleGlyf = GlyfLookup(pGlyf, lGlyfOffset, lGlyfSize); // invalid loca offset returns null
+ return pSimpleGlyf;
+}
+
+#ifdef ALL_TTFUTILS
+/*----------------------------------------------------------------------------------------------
+ Determine if a particular Glyph ID has any data in the glyf table. If it is white space,
+ there will be no glyf data, though there will be metric data in hmtx, etc.
+----------------------------------------------------------------------------------------------*/
+bool IsSpace(gid16 nGlyphId, const void * pLoca, size_t lLocaSize, const void * pHead)
+{
+ size_t lGlyfOffset = LocaLookup(nGlyphId, pLoca, lLocaSize, pHead);
+
+ // the +1 should always work because there is a sentinel value at the end of the loca table
+ size_t lNextGlyfOffset = LocaLookup(nGlyphId + 1, pLoca, lLocaSize, pHead);
+
+ return (lNextGlyfOffset - lGlyfOffset) == 0;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Determine if a particular Glyph ID is a multi-level composite.
+----------------------------------------------------------------------------------------------*/
+bool IsDeepComposite(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, long lLocaSize, const void * pHead)
+{
+ if (IsSpace(nGlyphId, pLoca, lLocaSize, pHead)) {return false;}
+
+ void * pSimpleGlyf = GlyfLookup(nGlyphId, pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL)
+ return false; // no way to really indicate an error occured here
+
+ if (GlyfContourCount(pSimpleGlyf) >= 0)
+ return false;
+
+ int rgnCompId[kMaxGlyphComponents]; // assumes only a limited number of glyph components
+ size_t cCompIdTotal = kMaxGlyphComponents;
+ size_t cCompId = 0;
+
+ if (!GetComponentGlyphIds(pSimpleGlyf, rgnCompId, cCompIdTotal, cCompId))
+ return false;
+
+ for (size_t i = 0; i < cCompId; i++)
+ {
+ pSimpleGlyf = GlyfLookup(static_cast<gid16>(rgnCompId[i]),
+ pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL) {return false;}
+
+ if (GlyfContourCount(pSimpleGlyf) < 0)
+ return true;
+ }
+
+ return false;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the bounding box coordinates based on the given tables and Glyph ID
+ Handles both simple and composite glyphs.
+ Return true if successful, false otherwise. On false, all point values will be INT_MIN
+ False may indicate a white space glyph
+----------------------------------------------------------------------------------------------*/
+bool GlyfBox(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead, int & xMin, int & yMin, int & xMax, int & yMax)
+{
+ xMin = yMin = xMax = yMax = INT_MIN;
+
+ if (IsSpace(nGlyphId, pLoca, lLocaSize, pHead)) {return false;}
+
+ void * pSimpleGlyf = GlyfLookup(nGlyphId, pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL) {return false;}
+
+ return GlyfBox(pSimpleGlyf, xMin, yMin, xMax, yMax);
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the number of contours based on the given tables and Glyph ID
+ Handles both simple and composite glyphs.
+ Return true if successful, false otherwise. On false, cnContours will be INT_MIN
+ False may indicate a white space glyph or a multi-level composite glyph.
+----------------------------------------------------------------------------------------------*/
+bool GlyfContourCount(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead, size_t & cnContours)
+{
+ cnContours = static_cast<size_t>(INT_MIN);
+
+ if (IsSpace(nGlyphId, pLoca, lLocaSize, pHead)) {return false;}
+
+ void * pSimpleGlyf = GlyfLookup(nGlyphId, pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL) {return false;}
+
+ int cRtnContours = GlyfContourCount(pSimpleGlyf);
+ if (cRtnContours >= 0)
+ {
+ cnContours = size_t(cRtnContours);
+ return true;
+ }
+
+ //handle composite glyphs
+
+ int rgnCompId[kMaxGlyphComponents]; // assumes no glyph will be made of more than 8 components
+ size_t cCompIdTotal = kMaxGlyphComponents;
+ size_t cCompId = 0;
+
+ if (!GetComponentGlyphIds(pSimpleGlyf, rgnCompId, cCompIdTotal, cCompId))
+ return false;
+
+ cRtnContours = 0;
+ int cTmp = 0;
+ for (size_t i = 0; i < cCompId; i++)
+ {
+ if (IsSpace(static_cast<gid16>(rgnCompId[i]), pLoca, lLocaSize, pHead)) {return false;}
+ pSimpleGlyf = GlyfLookup(static_cast<gid16>(rgnCompId[i]),
+ pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == 0) {return false;}
+ // return false on multi-level composite
+ if ((cTmp = GlyfContourCount(pSimpleGlyf)) < 0)
+ return false;
+ cRtnContours += cTmp;
+ }
+
+ cnContours = size_t(cRtnContours);
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the point numbers for the end points of the glyph contours based on the given tables
+ and Glyph ID
+ Handles both simple and composite glyphs.
+ cnPoints - count of contours from GlyfContourCount (same as number of end points)
+ prgnContourEndPoints - should point to a buffer large enough to hold cnPoints integers
+ Return true if successful, false otherwise. On false, all end points are INT_MIN
+ False may indicate a white space glyph or a multi-level composite glyph.
+----------------------------------------------------------------------------------------------*/
+bool GlyfContourEndPoints(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead,
+ int * prgnContourEndPoint, size_t cnPoints)
+{
+ memset(prgnContourEndPoint, 0xFF, cnPoints * sizeof(int));
+ // std::fill_n(prgnContourEndPoint, cnPoints, INT_MIN);
+
+ if (IsSpace(nGlyphId, pLoca, lLocaSize, pHead)) {return false;}
+
+ void * pSimpleGlyf = GlyfLookup(nGlyphId, pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL) {return false;}
+
+ int cContours = GlyfContourCount(pSimpleGlyf);
+ int cActualPts = 0;
+ if (cContours > 0)
+ return GlyfContourEndPoints(pSimpleGlyf, prgnContourEndPoint, cnPoints, cActualPts);
+
+ // handle composite glyphs
+
+ int rgnCompId[kMaxGlyphComponents]; // assumes no glyph will be made of more than 8 components
+ size_t cCompIdTotal = kMaxGlyphComponents;
+ size_t cCompId = 0;
+
+ if (!GetComponentGlyphIds(pSimpleGlyf, rgnCompId, cCompIdTotal, cCompId))
+ return false;
+
+ int * prgnCurrentEndPoint = prgnContourEndPoint;
+ int cCurrentPoints = cnPoints;
+ int nPrevPt = 0;
+ for (size_t i = 0; i < cCompId; i++)
+ {
+ if (IsSpace(static_cast<gid16>(rgnCompId[i]), pLoca, lLocaSize, pHead)) {return false;}
+ pSimpleGlyf = GlyfLookup(static_cast<gid16>(rgnCompId[i]), pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL) {return false;}
+ // returns false on multi-level composite
+ if (!GlyfContourEndPoints(pSimpleGlyf, prgnCurrentEndPoint, cCurrentPoints, cActualPts))
+ return false;
+ // points in composite are numbered sequentially as components are added
+ // must adjust end point numbers for new point numbers
+ for (int j = 0; j < cActualPts; j++)
+ prgnCurrentEndPoint[j] += nPrevPt;
+ nPrevPt = prgnCurrentEndPoint[cActualPts - 1] + 1;
+
+ prgnCurrentEndPoint += cActualPts;
+ cCurrentPoints -= cActualPts;
+ }
+
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Get the points for a glyph based on the given tables and Glyph ID
+ Handles both simple and composite glyphs.
+ cnPoints - count of points from largest end point obtained from GlyfContourEndPoints
+ prgnX & prgnY - should point to buffers large enough to hold cnPoints integers
+ The ranges are parallel so that coordinates for point(n) are found at offset n in
+ both ranges. These points are in absolute coordinates.
+ prgfOnCurve - should point to a buffer a large enough to hold cnPoints bytes (bool)
+ This range is parallel to the prgnX & prgnY
+ Return true if successful, false otherwise. On false, all points may be INT_MIN
+ False may indicate a white space glyph, a multi-level composite, or a corrupt font
+ It's not clear from the TTF spec when the transforms should be applied. Should the
+ transform be done before or after attachment point calcs? (current code - before)
+ Should the transform be applied to other offsets? (currently - no; however commented
+ out code is in place so that if CompoundGlyph::UnscaledOffset on the MS rasterizer is
+ clear (typical) then yes, and if CompoundGlyph::ScaledOffset on the Apple rasterizer is
+ clear (typical?) then no). See GetComponentTransform.
+ It's also unclear where point numbering with attachment poinst starts
+ (currently - first point number is relative to whole glyph, second point number is
+ relative to current glyph).
+----------------------------------------------------------------------------------------------*/
+bool GlyfPoints(gid16 nGlyphId, const void * pGlyf,
+ const void * pLoca, size_t lGlyfSize, size_t lLocaSize, const void * pHead,
+ const int * /*prgnContourEndPoint*/, size_t /*cnEndPoints*/,
+ int * prgnX, int * prgnY, bool * prgfOnCurve, size_t cnPoints)
+{
+ memset(prgnX, 0x7F, cnPoints * sizeof(int));
+ memset(prgnY, 0x7F, cnPoints * sizeof(int));
+
+ if (IsSpace(nGlyphId, pLoca, lLocaSize, pHead))
+ return false;
+
+ void * pSimpleGlyf = GlyfLookup(nGlyphId, pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pSimpleGlyf == NULL)
+ return false;
+
+ int cContours = GlyfContourCount(pSimpleGlyf);
+ int cActualPts;
+ if (cContours > 0)
+ {
+ if (!GlyfPoints(pSimpleGlyf, prgnX, prgnY, (char *)prgfOnCurve, cnPoints, cActualPts))
+ return false;
+ CalcAbsolutePoints(prgnX, prgnY, cnPoints);
+ SimplifyFlags((char *)prgfOnCurve, cnPoints);
+ return true;
+ }
+
+ // handle composite glyphs
+ int rgnCompId[kMaxGlyphComponents]; // assumes no glyph will be made of more than 8 components
+ size_t cCompIdTotal = kMaxGlyphComponents;
+ size_t cCompId = 0;
+
+ // this will fail if there are more components than there is room for
+ if (!GetComponentGlyphIds(pSimpleGlyf, rgnCompId, cCompIdTotal, cCompId))
+ return false;
+
+ int * prgnCurrentX = prgnX;
+ int * prgnCurrentY = prgnY;
+ char * prgbCurrentFlag = (char *)prgfOnCurve; // converting bool to char should be safe
+ int cCurrentPoints = cnPoints;
+ bool fOffset = true, fTransOff = true;
+ int a, b;
+ float flt11, flt12, flt21, flt22;
+ // int * prgnPrevX = prgnX; // in case first att pt number relative to preceding glyph
+ // int * prgnPrevY = prgnY;
+ for (size_t i = 0; i < cCompId; i++)
+ {
+ if (IsSpace(static_cast<gid16>(rgnCompId[i]), pLoca, lLocaSize, pHead)) {return false;}
+ void * pCompGlyf = GlyfLookup(static_cast<gid16>(rgnCompId[i]), pGlyf, pLoca, lGlyfSize, lLocaSize, pHead);
+ if (pCompGlyf == NULL) {return false;}
+ // returns false on multi-level composite
+ if (!GlyfPoints(pCompGlyf, prgnCurrentX, prgnCurrentY, prgbCurrentFlag,
+ cCurrentPoints, cActualPts))
+ return false;
+ if (!GetComponentPlacement(pSimpleGlyf, rgnCompId[i], fOffset, a, b))
+ return false;
+ if (!GetComponentTransform(pSimpleGlyf, rgnCompId[i],
+ flt11, flt12, flt21, flt22, fTransOff))
+ return false;
+ bool fIdTrans = flt11 == 1.0 && flt12 == 0.0 && flt21 == 0.0 && flt22 == 1.0;
+
+ // convert points to absolute coordinates
+ // do before transform and attachment point placement are applied
+ CalcAbsolutePoints(prgnCurrentX, prgnCurrentY, cActualPts);
+
+ // apply transform - see main method note above
+ // do before attachment point calcs
+ if (!fIdTrans)
+ for (int j = 0; j < cActualPts; j++)
+ {
+ int x = prgnCurrentX[j]; // store before transform applied
+ int y = prgnCurrentY[j];
+ prgnCurrentX[j] = (int)(x * flt11 + y * flt12);
+ prgnCurrentY[j] = (int)(x * flt21 + y * flt22);
+ }
+
+ // apply placement - see main method note above
+ int nXOff, nYOff;
+ if (fOffset) // explicit x & y offsets
+ {
+ /* ignore fTransOff for now
+ if (fTransOff && !fIdTrans)
+ { // transform x & y offsets
+ nXOff = (int)(a * flt11 + b * flt12);
+ nYOff = (int)(a * flt21 + b * flt22);
+ }
+ else */
+ { // don't transform offset
+ nXOff = a;
+ nYOff = b;
+ }
+ }
+ else // attachment points
+ { // in case first point is relative to preceding glyph and second relative to current
+ // nXOff = prgnPrevX[a] - prgnCurrentX[b];
+ // nYOff = prgnPrevY[a] - prgnCurrentY[b];
+ // first point number relative to whole composite, second relative to current glyph
+ nXOff = prgnX[a] - prgnCurrentX[b];
+ nYOff = prgnY[a] - prgnCurrentY[b];
+ }
+ for (int j = 0; j < cActualPts; j++)
+ {
+ prgnCurrentX[j] += nXOff;
+ prgnCurrentY[j] += nYOff;
+ }
+
+ // prgnPrevX = prgnCurrentX;
+ // prgnPrevY = prgnCurrentY;
+ prgnCurrentX += cActualPts;
+ prgnCurrentY += cActualPts;
+ prgbCurrentFlag += cActualPts;
+ cCurrentPoints -= cActualPts;
+ }
+
+ SimplifyFlags((char *)prgfOnCurve, cnPoints);
+
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Simplify the meaning of flags to just indicate whether point is on-curve or off-curve.
+---------------------------------------------------------------------------------------------*/
+bool SimplifyFlags(char * prgbFlags, int cnPoints)
+{
+ for (int i = 0; i < cnPoints; i++)
+ prgbFlags[i] = static_cast<char>(prgbFlags[i] & Sfnt::SimpleGlyph::OnCurve);
+ return true;
+}
+
+/*----------------------------------------------------------------------------------------------
+ Convert relative point coordinates to absolute coordinates
+ Points are stored in the font such that they are offsets from one another except for the
+ first point of a glyph.
+---------------------------------------------------------------------------------------------*/
+bool CalcAbsolutePoints(int * prgnX, int * prgnY, int cnPoints)
+{
+ int nX = prgnX[0];
+ int nY = prgnY[0];
+ for (int i = 1; i < cnPoints; i++)
+ {
+ prgnX[i] += nX;
+ nX = prgnX[i];
+ prgnY[i] += nY;
+ nY = prgnY[i];
+ }
+
+ return true;
+}
+#endif
+
+/*----------------------------------------------------------------------------------------------
+ Return the length of the 'name' table in bytes.
+ Currently used.
+---------------------------------------------------------------------------------------------*/
+#if 0
+size_t NameTableLength(const byte * pTable)
+{
+ byte * pb = (const_cast<byte *>(pTable)) + 2; // skip format
+ size_t cRecords = *pb++ << 8; cRecords += *pb++;
+ int dbStringOffset0 = (*pb++) << 8; dbStringOffset0 += *pb++;
+ int dbMaxStringOffset = 0;
+ for (size_t irec = 0; irec < cRecords; irec++)
+ {
+ int nPlatform = (*pb++) << 8; nPlatform += *pb++;
+ int nEncoding = (*pb++) << 8; nEncoding += *pb++;
+ int nLanguage = (*pb++) << 8; nLanguage += *pb++;
+ int nName = (*pb++) << 8; nName += *pb++;
+ int cbStringLen = (*pb++) << 8; cbStringLen += *pb++;
+ int dbStringOffset = (*pb++) << 8; dbStringOffset += *pb++;
+ if (dbMaxStringOffset < dbStringOffset + cbStringLen)
+ dbMaxStringOffset = dbStringOffset + cbStringLen;
+ }
+ return dbStringOffset0 + dbMaxStringOffset;
+}
+#endif
+
+} // end of namespace TtfUtil
+} // end of namespace graphite
diff --git a/gfx/graphite2/src/UtfCodec.cpp b/gfx/graphite2/src/UtfCodec.cpp
new file mode 100644
index 000000000..d1db5fa11
--- /dev/null
+++ b/gfx/graphite2/src/UtfCodec.cpp
@@ -0,0 +1,45 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "inc/UtfCodec.h"
+//using namespace graphite2;
+
+namespace graphite2 {
+
+}
+
+using namespace graphite2;
+
+const int8 _utf_codec<8>::sz_lut[16] =
+{
+ 1,1,1,1,1,1,1,1, // 1 byte
+ 0,0,0,0, // trailing byte
+ 2,2, // 2 bytes
+ 3, // 3 bytes
+ 4 // 4 bytes
+};
+
+const byte _utf_codec<8>::mask_lut[5] = {0x7f, 0xff, 0x3f, 0x1f, 0x0f};
diff --git a/gfx/graphite2/src/XmlTraceLog.cpp b/gfx/graphite2/src/XmlTraceLog.cpp
new file mode 100644
index 000000000..f34d15018
--- /dev/null
+++ b/gfx/graphite2/src/XmlTraceLog.cpp
@@ -0,0 +1,219 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#include <cstring>
+#include <cstdarg>
+#include "Main.h"
+#include "XmlTraceLog.h"
+
+
+using namespace graphite2;
+
+#ifndef DISABLE_TRACING
+
+/*static*/ XmlTraceLog XmlTraceLog::sm_NullLog(NULL, NULL, GRLOG_NONE);
+XmlTraceLog * XmlTraceLog::sLog = &sm_NullLog;
+
+XmlTraceLog::XmlTraceLog(FILE * file, const char * ns, GrLogMask logMask)
+ : m_file(file), m_depth(0), m_mask(logMask)
+{
+ if (!m_file) return;
+ int deep = 0;
+#ifdef ENABLE_DEEP_TRACING
+ deep = 1;
+#endif
+ fprintf(m_file, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<%s xmlns=\"%s\" mask=\"%x\" deep=\"%d\">",
+ xmlTraceLogElements[ElementTopLevel].mName, ns, logMask, deep);
+ m_elementStack[m_depth++] = ElementTopLevel;
+ m_elementEmpty = true;
+ m_inElement = false;
+ m_lastNodeText = false;
+}
+
+XmlTraceLog::~XmlTraceLog()
+{
+ if (m_file && m_file != stdout && m_file != stderr)
+ {
+ assert(m_depth == 1);
+ while (m_depth > 0)
+ {
+ closeElement(m_elementStack[m_depth-1]);
+ }
+ fclose(m_file);
+ m_file = NULL;
+ }
+}
+
+void XmlTraceLog::addSingleElement(XmlTraceLogElement eId, const int value)
+{
+ if (!m_file) return;
+ if (m_inElement)
+ {
+ if (xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ fprintf(m_file, ">");
+ }
+ if (xmlTraceLogElements[eId].mFlags & m_mask)
+ {
+ if (!m_lastNodeText)
+ {
+ fprintf(m_file, "\n");
+ for (size_t i = 0; i < m_depth; i++)
+ {
+ fprintf(m_file, " ");
+ }
+ }
+ fprintf(m_file, "<%s val=\"%d\"/>", xmlTraceLogElements[eId].mName, value);
+ }
+ m_inElement = false;
+ m_lastNodeText = false;
+}
+
+void XmlTraceLog::writeElementArray(XmlTraceLogElement eId, XmlTraceLogAttribute aId, int16 values [], size_t length)
+{
+ if (!m_file) return;
+ if (xmlTraceLogElements[eId].mFlags & m_mask)
+ {
+ if(m_inElement && xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ {
+ fprintf(m_file, ">");
+ m_inElement = false;
+ }
+ // line break after 5 columns
+ for (size_t i = 0; i < length; i++)
+ {
+ if (i % 5 == 0)
+ {
+ fprintf(m_file, "\n");
+ for (size_t j = 0; j < m_depth; j++)
+ {
+ fprintf(m_file, " ");
+ }
+ }
+ fprintf(m_file, "<%s index=\"%d\" %s=\"%d\"/>", xmlTraceLogElements[eId].mName, int(i),
+ xmlTraceLogAttributes[aId], (int)values[i]);
+ }
+ }
+}
+
+void XmlTraceLog::writeText(const char * utf8)
+{
+ if (!m_file) return;
+ if (m_inElement)
+ {
+ if (xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ {
+ fprintf(m_file, ">");
+ }
+ m_inElement = false;
+ }
+ if (xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ {
+ escapeIfNeeded(utf8);
+ }
+ m_lastNodeText = true;
+}
+
+void XmlTraceLog::writeUnicode(const uint32 code)
+{
+ if (!m_file) return;
+ if (m_inElement)
+ {
+ if (xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ {
+ fprintf(m_file, ">");
+ }
+ m_inElement = false;
+ }
+ if (xmlTraceLogElements[m_elementStack[m_depth-1]].mFlags & m_mask)
+ {
+ fprintf(m_file, "&#x%02x;", code);
+ }
+ m_lastNodeText = true;
+}
+
+void XmlTraceLog::escapeIfNeeded(const char * data)
+{
+ size_t length = strlen(data);
+ for (size_t i = 0; i < length; i++)
+ {
+ switch (data[i])
+ {
+ case '<':
+ fprintf(m_file, "&lt;");
+ break;
+ case '>':
+ fprintf(m_file, "&gt;");
+ break;
+ case '&':
+ fprintf(m_file, "&amp;");
+ break;
+ case '"':
+ fprintf(m_file, "&#34;");
+ break;
+ default:
+ fprintf(m_file, "%c", data[i]);
+ }
+ }
+}
+
+static const int MAX_MSG_LEN = 1024;
+
+void XmlTraceLog::error(const char * msg, ...)
+{
+ if (!m_file) return;
+ openElement(ElementError);
+ va_list args;
+ va_start(args, msg);
+ char buffer[MAX_MSG_LEN];
+#ifndef NDEBUG
+ int len =
+#endif
+ vsnprintf(buffer, MAX_MSG_LEN, msg, args);
+ assert(len + 1 < MAX_MSG_LEN);
+ writeText(buffer);
+ va_end(args);
+ closeElement(ElementError);
+}
+
+void XmlTraceLog::warning(const char * msg, ...)
+{
+ if (!m_file) return;
+ openElement(ElementWarning);
+ va_list args;
+ va_start(args, msg);
+ char buffer[MAX_MSG_LEN];
+#ifndef NDEBUG
+ int len =
+#endif
+ vsnprintf(buffer, MAX_MSG_LEN, msg, args);
+ assert(len + 1 < MAX_MSG_LEN);
+ writeText(buffer);
+ va_end(args);
+ closeElement(ElementWarning);
+}
+
+#endif //!DISABLE_TRACING
diff --git a/gfx/graphite2/src/XmlTraceLogTags.cpp b/gfx/graphite2/src/XmlTraceLogTags.cpp
new file mode 100644
index 000000000..b6ec970ac
--- /dev/null
+++ b/gfx/graphite2/src/XmlTraceLogTags.cpp
@@ -0,0 +1,169 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "Main.h"
+#include "XmlTraceLogTags.h"
+
+
+using namespace graphite2;
+
+#ifndef DISABLE_TRACING
+
+
+// start this at same line number as in XmlTraceLogTags.h
+const XmlTraceLogTag graphite2::xmlTraceLogElements[NumElements] = {
+ XmlTraceLogTag("Graphite2Log", GRLOG_ALL),
+ XmlTraceLogTag("Face", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("Glyphs", GRLOG_FACE),
+ XmlTraceLogTag("GlyphFace", GRLOG_FACE),
+ XmlTraceLogTag("Attr", GRLOG_FACE),
+ XmlTraceLogTag("Silf", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("SilfSub", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("Pass", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("Pseudo", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("ClassMap", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("LookupClass", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("Lookup", GRLOG_FACE | GRLOG_PASS),
+ XmlTraceLogTag("Range", GRLOG_PASS),
+ XmlTraceLogTag("RuleMap", GRLOG_PASS),
+ XmlTraceLogTag("Rule", GRLOG_PASS),
+ XmlTraceLogTag("StartState", GRLOG_PASS),
+ XmlTraceLogTag("StateTransitions", GRLOG_PASS),
+ XmlTraceLogTag("TR", GRLOG_PASS),
+ XmlTraceLogTag("TD", GRLOG_PASS),
+ XmlTraceLogTag("Constraint", GRLOG_PASS),
+ XmlTraceLogTag("Constraints", GRLOG_PASS),
+ XmlTraceLogTag("Actions", GRLOG_PASS),
+ XmlTraceLogTag("Action", GRLOG_PASS),
+ XmlTraceLogTag("Features", GRLOG_PASS),
+ XmlTraceLogTag("Feature", GRLOG_PASS),
+ XmlTraceLogTag("FeatureSetting", GRLOG_PASS),
+ XmlTraceLogTag("Segment", GRLOG_SEGMENT),
+ XmlTraceLogTag("Slot", GRLOG_SEGMENT),
+ XmlTraceLogTag("Text", GRLOG_SEGMENT),
+ XmlTraceLogTag("OpCode", GRLOG_OPCODE),
+ XmlTraceLogTag("TestRule", GRLOG_OPCODE),
+ XmlTraceLogTag("DoRule", GRLOG_OPCODE),
+ XmlTraceLogTag("RunPass", GRLOG_OPCODE),
+ XmlTraceLogTag("Params", GRLOG_OPCODE),
+ XmlTraceLogTag("Push", GRLOG_OPCODE),
+ XmlTraceLogTag("SubSeg", GRLOG_SEGMENT),
+ XmlTraceLogTag("SegCache", GRLOG_CACHE),
+ XmlTraceLogTag("SegCacheEntry", GRLOG_CACHE),
+ XmlTraceLogTag("Glyph", GRLOG_CACHE),
+ XmlTraceLogTag("PassResult", GRLOG_OPCODE),
+
+ XmlTraceLogTag("Error", GRLOG_ALL),
+ XmlTraceLogTag("Warning", GRLOG_ALL)
+ // Nothing corresponds to NumElements
+};
+
+
+
+// start this at same line number as in XmlTraceLogTags.h
+const char * graphite2::xmlTraceLogAttributes[NumAttributes] = {
+ "index",
+ "version",
+ "major",
+ "minor",
+ "num",
+ "glyphId",
+ "advance",
+ "advanceX",
+ "advanceY",
+ "attrId",
+ "attrVal",
+ "compilerMajor",
+ "compilerMinor",
+ "numPasses",//AttrNumPasses,
+ "subPass",//AttrSubPass,
+ "posPass",//AttrPosPass,
+ "justPass",//AttrJustPass,
+ "bidiPass",//AttrBidiPass,
+ "preContext",//AttrPreContext,
+ "postContext",//AttrPostContext,
+ "pseudoGlyph",//AttrPseudoGlyph,
+ "breakWeight",//AttrBreakWeight,
+ "directionality",//AttrDirectionality,
+ "numJustLevels",//AttrNumJustLevels,
+ "numLigCompAttr",//AttrLigComp,
+ "numUserDefinedAttr",//AttrUserDefn,
+ "maxNumLigComp",//AttrNumLigComp,
+ "numCriticalFeatures",//AttrNumCritFeatures,
+ "numScripts",//AttrNumScripts
+ "lineBreakglyph",//,AttrLBGlyph,
+ "numPseudo",
+ "numClasses",
+ "numLinear",
+ "passId",//AttrPassId,
+ "flags",//AttrFlags,
+ "maxRuleLoop",//AttrMaxRuleLoop,
+ "maxRuleContext",//AttrMaxRuleContext,
+ "maxBackup",//AttrMaxBackup,
+ "numRules",//AttrNumRules,
+ "numRows",//AttrNumRows,
+ "numTransitionStates",//AttrNumTransition,
+ "numSuccessStates",//AttrNumSuccess,
+ "numColumns",//AttrNumColumns,
+ "numRanges",//AttrNumRanges,
+ "minPrecontext",//AttrMinPrecontext,
+ "maxPrecontext",//AttrMaxPrecontext,
+ "firstId",
+ "lastId",
+ "colId",
+ "successId",
+ "ruleId",
+ "contextLength",
+ "state",
+ "value",
+ "sortKey",
+ "precontext",
+ "action",
+ "actionCode",
+ "arg1",
+ "arg2",
+ "arg3",
+ "arg4",
+ "arg5",
+ "arg6",
+ "arg7",
+ "arg8",
+ "label",
+ "length",
+ "x",
+ "y",
+ "before",
+ "after",
+ "encoding",
+ "name",
+ "result",
+ "default",
+ "accessCount",
+ "lastAccess",
+ "misses"
+};
+
+#endif
diff --git a/gfx/graphite2/src/call_machine.cpp b/gfx/graphite2/src/call_machine.cpp
new file mode 100644
index 000000000..09c2038c4
--- /dev/null
+++ b/gfx/graphite2/src/call_machine.cpp
@@ -0,0 +1,140 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This call threaded interpreter implmentation for machine.h
+// Author: Tim Eves
+
+// Build either this interpreter or the direct_machine implementation.
+// The call threaded interpreter is portable across compilers and
+// architectures as well as being useful to debug (you can set breakpoints on
+// opcodes) but is slower that the direct threaded interpreter by a factor of 2
+
+#include <cassert>
+#include <cstring>
+#include <graphite2/Segment.h>
+#include "inc/Machine.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/Rule.h"
+
+// Disable the unused parameter warning as th compiler is mistaken since dp
+// is always updated (even if by 0) on every opcode.
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+#define registers const byte * & dp, vm::Machine::stack_t * & sp, \
+ vm::Machine::stack_t * const sb, regbank & reg
+
+// These are required by opcodes.h and should not be changed
+#define STARTOP(name) bool name(registers) REGPARM(4);\
+ bool name(registers) {
+#define ENDOP return (sp - sb)/Machine::STACK_MAX==0; \
+ }
+
+#define EXIT(status) { push(status); return false; }
+
+// This is required by opcode_table.h
+#define do_(name) instr(name)
+
+
+using namespace graphite2;
+using namespace vm;
+
+struct regbank {
+ slotref is;
+ slotref * map;
+ SlotMap & smap;
+ slotref * const map_base;
+ const instr * & ip;
+ uint8 direction;
+ int8 flags;
+ Machine::status_t & status;
+};
+
+typedef bool (* ip_t)(registers);
+
+// Pull in the opcode definitions
+// We pull these into a private namespace so these otherwise common names dont
+// pollute the toplevel namespace.
+namespace {
+#define smap reg.smap
+#define seg smap.segment
+#define is reg.is
+#define ip reg.ip
+#define map reg.map
+#define mapb reg.map_base
+#define flags reg.flags
+#define dir reg.direction
+#define status reg.status
+
+#include "inc/opcodes.h"
+
+#undef smap
+#undef seg
+#undef is
+#undef ip
+#undef map
+#undef mapb
+#undef flags
+#undef dir
+}
+
+Machine::stack_t Machine::run(const instr * program,
+ const byte * data,
+ slotref * & map)
+
+{
+ assert(program != 0);
+
+ // Declare virtual machine registers
+ const instr * ip = program-1;
+ const byte * dp = data;
+ stack_t * sp = _stack + Machine::STACK_GUARD,
+ * const sb = sp;
+ regbank reg = {*map, map, _map, _map.begin()+_map.context(), ip, _map.dir(), 0, _status};
+
+ // Run the program
+ while ((reinterpret_cast<ip_t>(*++ip))(dp, sp, sb, reg)) {}
+ const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0;
+
+ check_final_stack(sp);
+ map = reg.map;
+ *map = reg.is;
+ return ret;
+}
+
+// Pull in the opcode table
+namespace {
+#include "inc/opcode_table.h"
+}
+
+const opcode_t * Machine::getOpcodeTable() throw()
+{
+ return opcode_table;
+}
+
+
diff --git a/gfx/graphite2/src/direct_machine.cpp b/gfx/graphite2/src/direct_machine.cpp
new file mode 100644
index 000000000..7d80438fb
--- /dev/null
+++ b/gfx/graphite2/src/direct_machine.cpp
@@ -0,0 +1,121 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This direct threaded interpreter implmentation for machine.h
+// Author: Tim Eves
+
+// Build either this interpreter or the call_machine implementation.
+// The direct threaded interpreter is relies upon a gcc feature called
+// labels-as-values so is only portable to compilers that support the
+// extension (gcc only as far as I know) however it should build on any
+// architecture gcc supports.
+// This is twice as fast as the call threaded model and is likely faster on
+// inorder processors with short pipelines and little branch prediction such
+// as the ARM and possibly Atom chips.
+
+
+#include <cassert>
+#include <cstring>
+#include "inc/Machine.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/Rule.h"
+
+#define STARTOP(name) name: {
+#define ENDOP }; goto *((sp - sb)/Machine::STACK_MAX ? &&end : *++ip);
+#define EXIT(status) { push(status); goto end; }
+
+#define do_(name) &&name
+
+
+using namespace graphite2;
+using namespace vm;
+
+namespace {
+
+const void * direct_run(const bool get_table_mode,
+ const instr * program,
+ const byte * data,
+ Machine::stack_t * stack,
+ slotref * & __map,
+ uint8 _dir,
+ Machine::status_t & status,
+ SlotMap * __smap=0)
+{
+ // We need to define and return to opcode table from within this function
+ // other inorder to take the addresses of the instruction bodies.
+ #include "inc/opcode_table.h"
+ if (get_table_mode)
+ return opcode_table;
+
+ // Declare virtual machine registers
+ const instr * ip = program;
+ const byte * dp = data;
+ Machine::stack_t * sp = stack + Machine::STACK_GUARD,
+ * const sb = sp;
+ SlotMap & smap = *__smap;
+ Segment & seg = smap.segment;
+ slotref is = *__map,
+ * map = __map,
+ * const mapb = smap.begin()+smap.context();
+ uint8 dir = _dir;
+ int8 flags = 0;
+
+ // start the program
+ goto **ip;
+
+ // Pull in the opcode definitions
+ #include "inc/opcodes.h"
+
+ end:
+ __map = map;
+ *__map = is;
+ return sp;
+}
+
+}
+
+const opcode_t * Machine::getOpcodeTable() throw()
+{
+ slotref * dummy;
+ Machine::status_t dumstat = Machine::finished;
+ return static_cast<const opcode_t *>(direct_run(true, 0, 0, 0, dummy, 0, dumstat));
+}
+
+
+Machine::stack_t Machine::run(const instr * program,
+ const byte * data,
+ slotref * & is)
+{
+ assert(program != 0);
+
+ const stack_t *sp = static_cast<const stack_t *>(
+ direct_run(false, program, data, _stack, is, _map.dir(), _status, &_map));
+ const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0;
+ check_final_stack(sp);
+ return ret;
+}
+
diff --git a/gfx/graphite2/src/files.mk b/gfx/graphite2/src/files.mk
new file mode 100644
index 000000000..fde83761c
--- /dev/null
+++ b/gfx/graphite2/src/files.mk
@@ -0,0 +1,123 @@
+# GRAPHITE2 LICENSING
+#
+# Copyright 2011, SIL International
+# All rights reserved.
+#
+# This library is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation; either version 2.1 of License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should also have received a copy of the GNU Lesser General Public
+# License along with this library in the file named "LICENSE".
+# If not, write to the Free Software Foundation, 51 Franklin Street,
+# Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+# internet at http://www.fsf.org/licenses/lgpl.html.
+#
+# Alternatively, the contents of this file may be used under the terms of the
+# Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+# License, as published by the Free Software Foundation, either version 2
+# of the License or (at your option) any later version.
+
+# Makefile helper file for those wanting to build Graphite2 using make
+# The including makefile should set the following variables
+# _NS Prefix to all variables this file creates (namespace)
+# $(_NS)_MACHINE Set to direct or call. Set to direct if using gcc else
+# set to call
+# $(_NS)_BASE path to root of graphite2 project
+#
+# Returns:
+# $(_NS)_SOURCES List of source files (with .cpp extension)
+# $(_NS)_PRIVATE_HEADERS List of private header files (with .h extension)
+# $(_NS)_PUBLIC_HEADERS List of public header files (with .h extension)
+
+
+$(_NS)_SOURCES = \
+ $($(_NS)_BASE)/src/$($(_NS)_MACHINE)_machine.cpp \
+ $($(_NS)_BASE)/src/gr_char_info.cpp \
+ $($(_NS)_BASE)/src/gr_face.cpp \
+ $($(_NS)_BASE)/src/gr_features.cpp \
+ $($(_NS)_BASE)/src/gr_font.cpp \
+ $($(_NS)_BASE)/src/gr_logging.cpp \
+ $($(_NS)_BASE)/src/gr_segment.cpp \
+ $($(_NS)_BASE)/src/gr_slot.cpp \
+ $($(_NS)_BASE)/src/json.cpp \
+ $($(_NS)_BASE)/src/CachedFace.cpp \
+ $($(_NS)_BASE)/src/CmapCache.cpp \
+ $($(_NS)_BASE)/src/Code.cpp \
+ $($(_NS)_BASE)/src/Collider.cpp \
+ $($(_NS)_BASE)/src/Decompressor.cpp \
+ $($(_NS)_BASE)/src/Face.cpp \
+ $($(_NS)_BASE)/src/FeatureMap.cpp \
+ $($(_NS)_BASE)/src/FileFace.cpp \
+ $($(_NS)_BASE)/src/Font.cpp \
+ $($(_NS)_BASE)/src/GlyphCache.cpp \
+ $($(_NS)_BASE)/src/GlyphFace.cpp \
+ $($(_NS)_BASE)/src/Intervals.cpp \
+ $($(_NS)_BASE)/src/Justifier.cpp \
+ $($(_NS)_BASE)/src/NameTable.cpp \
+ $($(_NS)_BASE)/src/Pass.cpp \
+ $($(_NS)_BASE)/src/Position.cpp \
+ $($(_NS)_BASE)/src/SegCache.cpp \
+ $($(_NS)_BASE)/src/SegCacheEntry.cpp \
+ $($(_NS)_BASE)/src/SegCacheStore.cpp \
+ $($(_NS)_BASE)/src/Segment.cpp \
+ $($(_NS)_BASE)/src/Silf.cpp \
+ $($(_NS)_BASE)/src/Slot.cpp \
+ $($(_NS)_BASE)/src/Sparse.cpp \
+ $($(_NS)_BASE)/src/TtfUtil.cpp \
+ $($(_NS)_BASE)/src/UtfCodec.cpp
+
+$(_NS)_PRIVATE_HEADERS = \
+ $($(_NS)_BASE)/src/inc/bits.h \
+ $($(_NS)_BASE)/src/inc/debug.h \
+ $($(_NS)_BASE)/src/inc/json.h \
+ $($(_NS)_BASE)/src/inc/CachedFace.h \
+ $($(_NS)_BASE)/src/inc/CharInfo.h \
+ $($(_NS)_BASE)/src/inc/CmapCache.h \
+ $($(_NS)_BASE)/src/inc/Code.h \
+ $($(_NS)_BASE)/src/inc/Collider.h \
+ $($(_NS)_BASE)/src/inc/Compression.h \
+ $($(_NS)_BASE)/src/inc/Decompressor.h \
+ $($(_NS)_BASE)/src/inc/Endian.h \
+ $($(_NS)_BASE)/src/inc/Error.h \
+ $($(_NS)_BASE)/src/inc/Face.h \
+ $($(_NS)_BASE)/src/inc/FeatureMap.h \
+ $($(_NS)_BASE)/src/inc/FeatureVal.h \
+ $($(_NS)_BASE)/src/inc/FileFace.h \
+ $($(_NS)_BASE)/src/inc/Font.h \
+ $($(_NS)_BASE)/src/inc/GlyphCache.h \
+ $($(_NS)_BASE)/src/inc/GlyphFace.h \
+ $($(_NS)_BASE)/src/inc/Intervals.h \
+ $($(_NS)_BASE)/src/inc/List.h \
+ $($(_NS)_BASE)/src/inc/locale2lcid.h \
+ $($(_NS)_BASE)/src/inc/Machine.h \
+ $($(_NS)_BASE)/src/inc/Main.h \
+ $($(_NS)_BASE)/src/inc/NameTable.h \
+ $($(_NS)_BASE)/src/inc/opcode_table.h \
+ $($(_NS)_BASE)/src/inc/opcodes.h \
+ $($(_NS)_BASE)/src/inc/Pass.h \
+ $($(_NS)_BASE)/src/inc/Position.h \
+ $($(_NS)_BASE)/src/inc/Rule.h \
+ $($(_NS)_BASE)/src/inc/SegCache.h \
+ $($(_NS)_BASE)/src/inc/SegCacheEntry.h \
+ $($(_NS)_BASE)/src/inc/SegCacheStore.h \
+ $($(_NS)_BASE)/src/inc/Segment.h \
+ $($(_NS)_BASE)/src/inc/Silf.h \
+ $($(_NS)_BASE)/src/inc/Slot.h \
+ $($(_NS)_BASE)/src/inc/Sparse.h \
+ $($(_NS)_BASE)/src/inc/TtfTypes.h \
+ $($(_NS)_BASE)/src/inc/TtfUtil.h \
+ $($(_NS)_BASE)/src/inc/UtfCodec.h
+
+$(_NS)_PUBLIC_HEADERS = \
+ $($(_NS)_BASE)/include/graphite2/Font.h \
+ $($(_NS)_BASE)/include/graphite2/Log.h \
+ $($(_NS)_BASE)/include/graphite2/Segment.h \
+ $($(_NS)_BASE)/include/graphite2/Types.h
+
diff --git a/gfx/graphite2/src/gr_char_info.cpp b/gfx/graphite2/src/gr_char_info.cpp
new file mode 100644
index 000000000..ebcb68e59
--- /dev/null
+++ b/gfx/graphite2/src/gr_char_info.cpp
@@ -0,0 +1,65 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cassert>
+#include "graphite2/Segment.h"
+#include "inc/CharInfo.h"
+
+extern "C"
+{
+
+unsigned int gr_cinfo_unicode_char(const gr_char_info* p/*not NULL*/)
+{
+ assert(p);
+ return p->unicodeChar();
+}
+
+
+int gr_cinfo_break_weight(const gr_char_info* p/*not NULL*/)
+{
+ assert(p);
+ return p->breakWeight();
+}
+
+int gr_cinfo_after(const gr_char_info *p/*not NULL*/)
+{
+ assert(p);
+ return p->after();
+}
+
+int gr_cinfo_before(const gr_char_info *p/*not NULL*/)
+{
+ assert(p);
+ return p->before();
+}
+
+size_t gr_cinfo_base(const gr_char_info *p/*not NULL*/)
+{
+ assert(p);
+ return p->base();
+}
+
+} // extern "C"
diff --git a/gfx/graphite2/src/gr_face.cpp b/gfx/graphite2/src/gr_face.cpp
new file mode 100644
index 000000000..fe1eb8382
--- /dev/null
+++ b/gfx/graphite2/src/gr_face.cpp
@@ -0,0 +1,282 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Font.h"
+#include "inc/Face.h"
+#include "inc/FileFace.h"
+#include "inc/GlyphCache.h"
+#include "inc/CachedFace.h"
+#include "inc/CmapCache.h"
+#include "inc/Silf.h"
+#include "inc/json.h"
+
+using namespace graphite2;
+
+#if !defined GRAPHITE2_NTRACING
+extern json *global_log;
+#endif
+
+namespace
+{
+ bool load_face(Face & face, unsigned int options)
+ {
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::category _misc_cat(face.tele.misc);
+#endif
+ Face::Table silf(face, Tag::Silf, 0x00050000);
+ if (silf) options &= ~gr_face_dumbRendering;
+ else if (!(options & gr_face_dumbRendering))
+ return false;
+
+ if (!face.readGlyphs(options))
+ return false;
+
+ if (silf)
+ {
+ if (!face.readFeatures() || !face.readGraphite(silf))
+ {
+#if !defined GRAPHITE2_NTRACING
+ if (global_log)
+ {
+ *global_log << json::object
+ << "type" << "fontload"
+ << "failure" << face.error()
+ << "context" << face.error_context()
+ << json::close;
+ }
+#endif
+ return false;
+ }
+ else
+ return true;
+ }
+ else
+ return options & gr_face_dumbRendering;
+ }
+}
+
+extern "C" {
+
+gr_face* gr_make_face_with_ops(const void* appFaceHandle/*non-NULL*/, const gr_face_ops *ops, unsigned int faceOptions)
+ //the appFaceHandle must stay alive all the time when the gr_face is alive. When finished with the gr_face, call destroy_face
+{
+ if (ops == 0) return 0;
+
+ Face *res = new Face(appFaceHandle, *ops);
+ if (res && load_face(*res, faceOptions))
+ return static_cast<gr_face *>(res);
+
+ delete res;
+ return 0;
+}
+
+gr_face* gr_make_face(const void* appFaceHandle/*non-NULL*/, gr_get_table_fn tablefn, unsigned int faceOptions)
+{
+ const gr_face_ops ops = {sizeof(gr_face_ops), tablefn, NULL};
+ return gr_make_face_with_ops(appFaceHandle, &ops, faceOptions);
+}
+
+#ifndef GRAPHITE2_NSEGCACHE
+gr_face* gr_make_face_with_seg_cache_and_ops(const void* appFaceHandle/*non-NULL*/, const gr_face_ops *ops, unsigned int cacheSize, unsigned int faceOptions)
+ //the appFaceHandle must stay alive all the time when the GrFace is alive. When finished with the GrFace, call destroy_face
+{
+ if (ops == 0) return 0;
+
+ CachedFace *res = new CachedFace(appFaceHandle, *ops);
+ if (res && load_face(*res, faceOptions)
+ && res->setupCache(cacheSize))
+ return static_cast<gr_face *>(static_cast<Face *>(res));
+
+ delete res;
+ return 0;
+}
+
+gr_face* gr_make_face_with_seg_cache(const void* appFaceHandle/*non-NULL*/, gr_get_table_fn getTable, unsigned int cacheSize, unsigned int faceOptions)
+{
+ const gr_face_ops ops = {sizeof(gr_face_ops), getTable, NULL};
+ return gr_make_face_with_seg_cache_and_ops(appFaceHandle, &ops, cacheSize, faceOptions);
+}
+#endif
+
+gr_uint32 gr_str_to_tag(const char *str)
+{
+ uint32 res = 0;
+ int i = strlen(str);
+ if (i > 4) i = 4;
+ while (--i >= 0)
+ res = (res >> 8) + (str[i] << 24);
+ return res;
+}
+
+void gr_tag_to_str(gr_uint32 tag, char *str)
+{
+ int i = 4;
+ while (--i >= 0)
+ {
+ str[i] = tag & 0xFF;
+ tag >>= 8;
+ }
+}
+
+inline
+uint32 zeropad(const uint32 x)
+{
+ if (x == 0x20202020) return 0;
+ if ((x & 0x00FFFFFF) == 0x00202020) return x & 0xFF000000;
+ if ((x & 0x0000FFFF) == 0x00002020) return x & 0xFFFF0000;
+ if ((x & 0x000000FF) == 0x00000020) return x & 0xFFFFFF00;
+ return x;
+}
+
+gr_feature_val* gr_face_featureval_for_lang(const gr_face* pFace, gr_uint32 langname/*0 means clone default*/) //clones the features. if none for language, clones the default
+{
+ assert(pFace);
+ langname = zeropad(langname);
+ return static_cast<gr_feature_val *>(pFace->theSill().cloneFeatures(langname));
+}
+
+
+const gr_feature_ref* gr_face_find_fref(const gr_face* pFace, gr_uint32 featId) //When finished with the FeatureRef, call destroy_FeatureRef
+{
+ assert(pFace);
+ featId = zeropad(featId);
+ const FeatureRef* pRef = pFace->featureById(featId);
+ return static_cast<const gr_feature_ref*>(pRef);
+}
+
+unsigned short gr_face_n_fref(const gr_face* pFace)
+{
+ assert(pFace);
+ return pFace->numFeatures();
+}
+
+const gr_feature_ref* gr_face_fref(const gr_face* pFace, gr_uint16 i) //When finished with the FeatureRef, call destroy_FeatureRef
+{
+ assert(pFace);
+ const FeatureRef* pRef = pFace->feature(i);
+ return static_cast<const gr_feature_ref*>(pRef);
+}
+
+unsigned short gr_face_n_languages(const gr_face* pFace)
+{
+ assert(pFace);
+ return pFace->theSill().numLanguages();
+}
+
+gr_uint32 gr_face_lang_by_index(const gr_face* pFace, gr_uint16 i)
+{
+ assert(pFace);
+ return pFace->theSill().getLangName(i);
+}
+
+
+void gr_face_destroy(gr_face *face)
+{
+ delete face;
+}
+
+
+gr_uint16 gr_face_name_lang_for_locale(gr_face *face, const char * locale)
+{
+ if (face)
+ {
+ return face->languageForLocale(locale);
+ }
+ return 0;
+}
+
+unsigned short gr_face_n_glyphs(const gr_face* pFace)
+{
+ return pFace->glyphs().numGlyphs();
+}
+
+const gr_faceinfo *gr_face_info(const gr_face *pFace, gr_uint32 script)
+{
+ if (!pFace) return 0;
+ const Silf *silf = pFace->chooseSilf(script);
+ if (silf) return silf->silfInfo();
+ return 0;
+}
+
+int gr_face_is_char_supported(const gr_face* pFace, gr_uint32 usv, gr_uint32 script)
+{
+ const Cmap & cmap = pFace->cmap();
+ gr_uint16 gid = cmap[usv];
+ if (!gid)
+ {
+ const Silf * silf = pFace->chooseSilf(script);
+ gid = silf->findPseudo(usv);
+ }
+ return (gid != 0);
+}
+
+#ifndef GRAPHITE2_NFILEFACE
+gr_face* gr_make_file_face(const char *filename, unsigned int faceOptions)
+{
+ FileFace* pFileFace = new FileFace(filename);
+ if (*pFileFace)
+ {
+ gr_face* pRes = gr_make_face_with_ops(pFileFace, &FileFace::ops, faceOptions);
+ if (pRes)
+ {
+ pRes->takeFileFace(pFileFace); //takes ownership
+ return pRes;
+ }
+ }
+
+ //error when loading
+
+ delete pFileFace;
+ return NULL;
+}
+
+#ifndef GRAPHITE2_NSEGCACHE
+gr_face* gr_make_file_face_with_seg_cache(const char* filename, unsigned int segCacheMaxSize, unsigned int faceOptions) //returns NULL on failure. //TBD better error handling
+ //when finished with, call destroy_face
+{
+ FileFace* pFileFace = new FileFace(filename);
+ if (*pFileFace)
+ {
+ gr_face * pRes = gr_make_face_with_seg_cache_and_ops(pFileFace, &FileFace::ops, segCacheMaxSize, faceOptions);
+ if (pRes)
+ {
+ pRes->takeFileFace(pFileFace); //takes ownership
+ return pRes;
+ }
+ }
+
+ //error when loading
+
+ delete pFileFace;
+ return NULL;
+}
+#endif
+#endif //!GRAPHITE2_NFILEFACE
+
+
+} // extern "C"
+
+
diff --git a/gfx/graphite2/src/gr_features.cpp b/gfx/graphite2/src/gr_features.cpp
new file mode 100644
index 000000000..38cebb7b5
--- /dev/null
+++ b/gfx/graphite2/src/gr_features.cpp
@@ -0,0 +1,138 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Font.h"
+#include "inc/Face.h"
+#include "inc/FeatureMap.h"
+#include "inc/FeatureVal.h"
+#include "inc/NameTable.h"
+
+using namespace graphite2;
+
+extern "C" {
+
+
+gr_uint16 gr_fref_feature_value(const gr_feature_ref* pfeatureref, const gr_feature_val* feats) //returns 0 if either pointer is NULL
+{
+ if (!pfeatureref || !feats) return 0;
+
+ return pfeatureref->getFeatureVal(*feats);
+}
+
+
+int gr_fref_set_feature_value(const gr_feature_ref* pfeatureref, gr_uint16 val, gr_feature_val* pDest)
+{
+ if (!pfeatureref || !pDest) return 0;
+
+ return pfeatureref->applyValToFeature(val, *pDest);
+}
+
+
+gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref) //returns 0 if pointer is NULL
+{
+ if (!pfeatureref)
+ return 0;
+
+ return pfeatureref->getId();
+}
+
+
+gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref)
+{
+ if(!pfeatureref)
+ return 0;
+ return pfeatureref->getNumSettings();
+}
+
+
+gr_int16 gr_fref_value(const gr_feature_ref* pfeatureref, gr_uint16 settingno)
+{
+ if(!pfeatureref || (settingno >= pfeatureref->getNumSettings()))
+ {
+ return 0;
+ }
+ return pfeatureref->getSettingValue(settingno);
+}
+
+
+void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
+{
+ if(!pfeatureref || !pfeatureref->getFace())
+ {
+ langId = 0;
+ length = 0;
+ return NULL;
+ }
+ uint16 label = pfeatureref->getNameId();
+ NameTable * names = pfeatureref->getFace()->nameTable();
+ if (!names)
+ {
+ langId = 0;
+ length = 0;
+ return NULL;
+ }
+ return names->getName(*langId, label, utf, *length);
+}
+
+
+void* gr_fref_value_label(const gr_feature_ref*pfeatureref, gr_uint16 setting,
+ gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
+{
+ if(!pfeatureref || (setting >= pfeatureref->getNumSettings()) || !pfeatureref->getFace())
+ {
+ langId = 0;
+ length = 0;
+ return NULL;
+ }
+ uint16 label = pfeatureref->getSettingName(setting);
+ NameTable * names = pfeatureref->getFace()->nameTable();
+ if (!names)
+ {
+ langId = 0;
+ length = 0;
+ return NULL;
+ }
+ return names->getName(*langId, label, utf, *length);
+}
+
+
+void gr_label_destroy(void * label)
+{
+ free(label);
+}
+
+gr_feature_val* gr_featureval_clone(const gr_feature_val* pfeatures/*may be NULL*/)
+{ //When finished with the Features, call features_destroy
+ return static_cast<gr_feature_val*>(pfeatures ? new Features(*pfeatures) : new Features);
+}
+
+void gr_featureval_destroy(gr_feature_val *p)
+{
+ delete p;
+}
+
+
+} // extern "C"
diff --git a/gfx/graphite2/src/gr_font.cpp b/gfx/graphite2/src/gr_font.cpp
new file mode 100644
index 000000000..ed70ab738
--- /dev/null
+++ b/gfx/graphite2/src/gr_font.cpp
@@ -0,0 +1,72 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Font.h"
+#include "inc/Font.h"
+
+
+using namespace graphite2;
+
+extern "C" {
+
+void gr_engine_version(int *nMajor, int *nMinor, int *nBugFix)
+{
+ if (nMajor) *nMajor = GR2_VERSION_MAJOR;
+ if (nMinor) *nMinor = GR2_VERSION_MINOR;
+ if (nBugFix) *nBugFix = GR2_VERSION_BUGFIX;
+}
+
+gr_font* gr_make_font(float ppm/*pixels per em*/, const gr_face *face)
+{
+ return gr_make_font_with_advance_fn(ppm, 0, 0, face);
+}
+
+
+gr_font* gr_make_font_with_ops(float ppm/*pixels per em*/, const void* appFontHandle/*non-NULL*/, const gr_font_ops * font_ops, const gr_face * face/*needed for scaling*/)
+{ //the appFontHandle must stay alive all the time when the gr_font is alive. When finished with the gr_font, call destroy_gr_font
+ if (face == 0) return 0;
+
+ Font * const res = new Font(ppm, *face, appFontHandle, font_ops);
+ return static_cast<gr_font*>(res);
+}
+
+gr_font* gr_make_font_with_advance_fn(float ppm/*pixels per em*/, const void* appFontHandle/*non-NULL*/, gr_advance_fn getAdvance, const gr_face * face/*needed for scaling*/)
+{
+ const gr_font_ops ops = {sizeof(gr_font_ops), getAdvance, NULL};
+ return gr_make_font_with_ops(ppm, appFontHandle, &ops, face);
+}
+
+void gr_font_destroy(gr_font *font)
+{
+ delete font;
+}
+
+
+} // extern "C"
+
+
+
+
diff --git a/gfx/graphite2/src/gr_logging.cpp b/gfx/graphite2/src/gr_logging.cpp
new file mode 100644
index 000000000..3e453ba8e
--- /dev/null
+++ b/gfx/graphite2/src/gr_logging.cpp
@@ -0,0 +1,266 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include <cstdio>
+
+#include "graphite2/Log.h"
+#include "inc/debug.h"
+#include "inc/CharInfo.h"
+#include "inc/Slot.h"
+#include "inc/Segment.h"
+#include "inc/json.h"
+#include "inc/Collider.h"
+
+#if defined _WIN32
+#include "windows.h"
+#endif
+
+using namespace graphite2;
+
+#if !defined GRAPHITE2_NTRACING
+json *global_log = NULL;
+#endif
+
+extern "C" {
+
+bool gr_start_logging(GR_MAYBE_UNUSED gr_face * face, const char *log_path)
+{
+ if (!log_path) return false;
+
+#if !defined GRAPHITE2_NTRACING
+ gr_stop_logging(face);
+#if defined _WIN32
+ int n = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, log_path, -1, 0, 0);
+ if (n == 0 || n > MAX_PATH - 12) return false;
+
+ LPWSTR wlog_path = gralloc<WCHAR>(n);
+ if (!wlog_path) return false;
+ FILE *log = 0;
+ if (wlog_path && MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, log_path, -1, wlog_path, n))
+ log = _wfopen(wlog_path, L"wt");
+
+ free(wlog_path);
+#else // _WIN32
+ FILE *log = fopen(log_path, "wt");
+#endif // _WIN32
+ if (!log) return false;
+
+ if (face)
+ {
+ face->setLogger(log);
+ if (!face->logger()) return false;
+
+ *face->logger() << json::array;
+#ifdef GRAPHITE2_TELEMETRY
+ *face->logger() << face->tele;
+#endif
+ }
+ else
+ {
+ global_log = new json(log);
+ *global_log << json::array;
+ }
+
+ return true;
+#else // GRAPHITE2_NTRACING
+ return false;
+#endif // GRAPHITE2_NTRACING
+}
+
+bool graphite_start_logging(FILE * /* log */, GrLogMask /* mask */)
+{
+//#if !defined GRAPHITE2_NTRACING
+// graphite_stop_logging();
+//
+// if (!log) return false;
+//
+// dbgout = new json(log);
+// if (!dbgout) return false;
+//
+// *dbgout << json::array;
+// return true;
+//#else
+ return false;
+//#endif
+}
+
+void gr_stop_logging(GR_MAYBE_UNUSED gr_face * face)
+{
+#if !defined GRAPHITE2_NTRACING
+ if (face && face->logger())
+ {
+ FILE * log = face->logger()->stream();
+ face->setLogger(0);
+ fclose(log);
+ }
+ else if (!face && global_log)
+ {
+ FILE * log = global_log->stream();
+ delete global_log;
+ fclose(log);
+ }
+#endif
+}
+
+void graphite_stop_logging()
+{
+// if (dbgout) delete dbgout;
+// dbgout = 0;
+}
+
+} // extern "C"
+
+#ifdef GRAPHITE2_TELEMETRY
+size_t * graphite2::telemetry::_category = 0UL;
+#endif
+
+#if !defined GRAPHITE2_NTRACING
+
+#ifdef GRAPHITE2_TELEMETRY
+
+json & graphite2::operator << (json & j, const telemetry & t) throw()
+{
+ j << json::object
+ << "type" << "telemetry"
+ << "silf" << t.silf
+ << "states" << t.states
+ << "starts" << t.starts
+ << "transitions" << t.transitions
+ << "glyphs" << t.glyph
+ << "code" << t.code
+ << "misc" << t.misc
+ << "total" << (t.silf + t.states + t.starts + t.transitions + t.glyph + t.code + t.misc)
+ << json::close;
+ return j;
+}
+#else
+json & graphite2::operator << (json & j, const telemetry &) throw()
+{
+ return j;
+}
+#endif
+
+
+json & graphite2::operator << (json & j, const CharInfo & ci) throw()
+{
+ return j << json::object
+ << "offset" << ci.base()
+ << "unicode" << ci.unicodeChar()
+ << "break" << ci.breakWeight()
+ << "flags" << ci.flags()
+ << "slot" << json::flat << json::object
+ << "before" << ci.before()
+ << "after" << ci.after()
+ << json::close
+ << json::close;
+}
+
+
+json & graphite2::operator << (json & j, const dslot & ds) throw()
+{
+ assert(ds.first);
+ assert(ds.second);
+ const Segment & seg = *ds.first;
+ const Slot & s = *ds.second;
+ const SlotCollision *cslot = seg.collisionInfo(ds.second);
+
+ j << json::object
+ << "id" << objectid(ds)
+ << "gid" << s.gid()
+ << "charinfo" << json::flat << json::object
+ << "original" << s.original()
+ << "before" << s.before()
+ << "after" << s.after()
+ << json::close
+ << "origin" << s.origin()
+ << "shift" << Position(float(s.getAttr(0, gr_slatShiftX, 0)),
+ float(s.getAttr(0, gr_slatShiftY, 0)))
+ << "advance" << s.advancePos()
+ << "insert" << s.isInsertBefore()
+ << "break" << s.getAttr(&seg, gr_slatBreak, 0);
+ if (s.just() > 0)
+ j << "justification" << s.just();
+ if (s.getBidiLevel() > 0)
+ j << "bidi" << s.getBidiLevel();
+ if (!s.isBase())
+ j << "parent" << json::flat << json::object
+ << "id" << objectid(dslot(&seg, s.attachedTo()))
+ << "level" << s.getAttr(0, gr_slatAttLevel, 0)
+ << "offset" << s.attachOffset()
+ << json::close;
+ j << "user" << json::flat << json::array;
+ for (int n = 0; n!= seg.numAttrs(); ++n)
+ j << s.userAttrs()[n];
+ j << json::close;
+ if (s.firstChild())
+ {
+ j << "children" << json::flat << json::array;
+ for (const Slot *c = s.firstChild(); c; c = c->nextSibling())
+ j << objectid(dslot(&seg, c));
+ j << json::close;
+ }
+ if (cslot)
+ {
+ // Note: the reason for using Positions to lump together related attributes is to make the
+ // JSON output slightly more compact.
+ j << "collision" << json::flat << json::object
+// << "shift" << cslot->shift() -- not used pass level, only within the collision routine itself
+ << "offset" << cslot->offset()
+ << "limit" << cslot->limit()
+ << "flags" << cslot->flags()
+ << "margin" << Position(cslot->margin(), cslot->marginWt())
+ << "exclude" << cslot->exclGlyph()
+ << "excludeoffset" << cslot->exclOffset();
+ if (cslot->seqOrder() != 0)
+ {
+ j << "seqclass" << Position(cslot->seqClass(), cslot->seqProxClass())
+ << "seqorder" << cslot->seqOrder()
+ << "seqabove" << Position(cslot->seqAboveXoff(), cslot->seqAboveWt())
+ << "seqbelow" << Position(cslot->seqBelowXlim(), cslot->seqBelowWt())
+ << "seqvalign" << Position(cslot->seqValignHt(), cslot->seqValignWt());
+ }
+ j << json::close;
+ }
+ return j << json::close;
+}
+
+
+graphite2::objectid::objectid(const dslot & ds) throw()
+{
+ const Slot * const p = ds.second;
+ uint32 s = reinterpret_cast<size_t>(p);
+ sprintf(name, "%.4x-%.2x-%.4hx", uint16(s >> 16), uint16(p ? p->userAttrs()[ds.first->silf()->numUser()] : 0), uint16(s));
+ name[sizeof name-1] = 0;
+}
+
+graphite2::objectid::objectid(const Segment * const p) throw()
+{
+ uint32 s = reinterpret_cast<size_t>(p);
+ sprintf(name, "%.4x-%.2x-%.4hx", uint16(s >> 16), 0, uint16(s));
+ name[sizeof name-1] = 0;
+}
+
+#endif
diff --git a/gfx/graphite2/src/gr_segment.cpp b/gfx/graphite2/src/gr_segment.cpp
new file mode 100644
index 000000000..0ab7a0854
--- /dev/null
+++ b/gfx/graphite2/src/gr_segment.cpp
@@ -0,0 +1,170 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Segment.h"
+#include "inc/UtfCodec.h"
+#include "inc/Segment.h"
+
+using namespace graphite2;
+
+namespace
+{
+
+ gr_segment* makeAndInitialize(const Font *font, const Face *face, uint32 script, const Features* pFeats/*must not be NULL*/, gr_encform enc, const void* pStart, size_t nChars, int dir)
+ {
+ if (script == 0x20202020) script = 0;
+ else if ((script & 0x00FFFFFF) == 0x00202020) script = script & 0xFF000000;
+ else if ((script & 0x0000FFFF) == 0x00002020) script = script & 0xFFFF0000;
+ else if ((script & 0x000000FF) == 0x00000020) script = script & 0xFFFFFF00;
+ // if (!font) return NULL;
+ Segment* pRes=new Segment(nChars, face, script, dir);
+
+
+ if (!pRes->read_text(face, pFeats, enc, pStart, nChars) || !pRes->runGraphite())
+ {
+ delete pRes;
+ return NULL;
+ }
+ pRes->finalise(font, true);
+
+ return static_cast<gr_segment*>(pRes);
+ }
+
+
+}
+
+
+template <typename utf_iter>
+inline size_t count_unicode_chars(utf_iter first, const utf_iter last, const void **error)
+{
+ size_t n_chars = 0;
+ uint32 usv = 0;
+
+ if (last)
+ {
+ for (;first != last; ++first, ++n_chars)
+ if ((usv = *first) == 0 || first.error()) break;
+ }
+ else
+ {
+ while ((usv = *first) != 0 && !first.error())
+ {
+ ++first;
+ ++n_chars;
+ }
+ }
+
+ if (error) *error = first.error() ? first : 0;
+ return n_chars;
+}
+
+extern "C" {
+
+size_t gr_count_unicode_characters(gr_encform enc, const void* buffer_begin, const void* buffer_end/*don't go on or past end, If NULL then ignored*/, const void** pError) //Also stops on nul. Any nul is not in the count
+{
+ assert(buffer_begin);
+
+ switch (enc)
+ {
+ case gr_utf8: return count_unicode_chars<utf8::const_iterator>(buffer_begin, buffer_end, pError); break;
+ case gr_utf16: return count_unicode_chars<utf16::const_iterator>(buffer_begin, buffer_end, pError); break;
+ case gr_utf32: return count_unicode_chars<utf32::const_iterator>(buffer_begin, buffer_end, pError); break;
+ default: return 0;
+ }
+}
+
+
+gr_segment* gr_make_seg(const gr_font *font, const gr_face *face, gr_uint32 script, const gr_feature_val* pFeats, gr_encform enc, const void* pStart, size_t nChars, int dir)
+{
+ const gr_feature_val * tmp_feats = 0;
+ if (pFeats == 0)
+ pFeats = tmp_feats = static_cast<const gr_feature_val*>(face->theSill().cloneFeatures(0));
+ gr_segment * seg = makeAndInitialize(font, face, script, pFeats, enc, pStart, nChars, dir);
+ delete tmp_feats;
+
+ return seg;
+}
+
+
+void gr_seg_destroy(gr_segment* p)
+{
+ delete p;
+}
+
+
+float gr_seg_advance_X(const gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return pSeg->advance().x;
+}
+
+
+float gr_seg_advance_Y(const gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return pSeg->advance().y;
+}
+
+
+unsigned int gr_seg_n_cinfo(const gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return pSeg->charInfoCount();
+}
+
+
+const gr_char_info* gr_seg_cinfo(const gr_segment* pSeg/*not NULL*/, unsigned int index/*must be <number_of_CharInfo*/)
+{
+ assert(pSeg);
+ return static_cast<const gr_char_info*>(pSeg->charinfo(index));
+}
+
+unsigned int gr_seg_n_slots(const gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return pSeg->slotCount();
+}
+
+const gr_slot* gr_seg_first_slot(gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return static_cast<const gr_slot*>(pSeg->first());
+}
+
+const gr_slot* gr_seg_last_slot(gr_segment* pSeg/*not NULL*/)
+{
+ assert(pSeg);
+ return static_cast<const gr_slot*>(pSeg->last());
+}
+
+float gr_seg_justify(gr_segment* pSeg/*not NULL*/, const gr_slot* pSlot/*not NULL*/, const gr_font *pFont, double width, enum gr_justFlags flags, const gr_slot *pFirst, const gr_slot *pLast)
+{
+ assert(pSeg);
+ assert(pSlot);
+ return pSeg->justify(const_cast<gr_slot *>(pSlot), pFont, float(width), justFlags(flags), const_cast<gr_slot *>(pFirst), const_cast<gr_slot *>(pLast));
+}
+
+} // extern "C"
diff --git a/gfx/graphite2/src/gr_slot.cpp b/gfx/graphite2/src/gr_slot.cpp
new file mode 100644
index 000000000..0e41f6cb5
--- /dev/null
+++ b/gfx/graphite2/src/gr_slot.cpp
@@ -0,0 +1,173 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Segment.h"
+#include "inc/Segment.h"
+#include "inc/Slot.h"
+#include "inc/Font.h"
+
+
+extern "C" {
+
+
+const gr_slot* gr_slot_next_in_segment(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->next());
+}
+
+const gr_slot* gr_slot_prev_in_segment(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->prev());
+}
+
+const gr_slot* gr_slot_attached_to(const gr_slot* p/*not NULL*/) //returns NULL iff base. If called repeatedly on result, will get to a base
+{
+ assert(p);
+ return static_cast<const gr_slot*>(p->attachedTo());
+}
+
+
+const gr_slot* gr_slot_first_attachment(const gr_slot* p/*not NULL*/) //returns NULL iff no attachments.
+{ //if slot_first_attachment(p) is not NULL, then slot_attached_to(slot_first_attachment(p))==p.
+ assert(p);
+ return static_cast<const gr_slot*>(p->firstChild());
+}
+
+
+const gr_slot* gr_slot_next_sibling_attachment(const gr_slot* p/*not NULL*/) //returns NULL iff no more attachments.
+{ //if slot_next_sibling_attachment(p) is not NULL, then slot_attached_to(slot_next_sibling_attachment(p))==slot_attached_to(p).
+ assert(p);
+ return static_cast<const gr_slot*>(p->nextSibling());
+}
+
+
+unsigned short gr_slot_gid(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->glyph();
+}
+
+
+float gr_slot_origin_X(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->origin().x;
+}
+
+
+float gr_slot_origin_Y(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->origin().y;
+}
+
+
+float gr_slot_advance_X(const gr_slot* p/*not NULL*/, const gr_face *face, const gr_font *font)
+{
+ assert(p);
+ float scale = 1.0;
+ float res = p->advance();
+ if (font)
+ {
+ scale = font->scale();
+ if (face && font->isHinted())
+ res = (res - face->glyphs().glyph(p->gid())->theAdvance().x) * scale + font->advance(p->gid());
+ else
+ res = res * scale;
+ }
+ return res;
+}
+
+float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, GR_MAYBE_UNUSED const gr_face *face, const gr_font *font)
+{
+ assert(p);
+ float res = p->advancePos().y;
+ if (font)
+ return res * font->scale();
+ else
+ return res;
+}
+
+int gr_slot_before(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->before();
+}
+
+
+int gr_slot_after(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->after();
+}
+
+unsigned int gr_slot_index(const gr_slot *p/*not NULL*/)
+{
+ assert(p);
+ return p->index();
+}
+
+int gr_slot_attr(const gr_slot* p/*not NULL*/, const gr_segment* pSeg/*not NULL*/, gr_attrCode index, gr_uint8 subindex)
+{
+ assert(p);
+ return p->getAttr(pSeg, index, subindex);
+}
+
+
+int gr_slot_can_insert_before(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return (p->isInsertBefore())? 1 : 0;
+}
+
+
+int gr_slot_original(const gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ return p->original();
+}
+
+void gr_slot_linebreak_before(gr_slot* p/*not NULL*/)
+{
+ assert(p);
+ gr_slot *prev = (gr_slot *)p->prev();
+ prev->sibling(NULL);
+ prev->next(NULL);
+ p->prev(NULL);
+}
+
+#if 0 //what should this be
+size_t id(const gr_slot* p/*not NULL*/)
+{
+ return (size_t)p->id();
+}
+#endif
+
+
+} // extern "C"
+
diff --git a/gfx/graphite2/src/inc/Bidi.h b/gfx/graphite2/src/inc/Bidi.h
new file mode 100644
index 000000000..9593c7e14
--- /dev/null
+++ b/gfx/graphite2/src/inc/Bidi.h
@@ -0,0 +1,126 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2013, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+namespace graphite2
+{
+
+class BracketPair
+{
+public:
+ BracketPair(uint16 g, Slot *s, uint8 b, BracketPair *p, BracketPair *l) : _open(s), _close(0), _parent(p), _next(0), _prev(l), _gid(g), _mask(0), _before(b) {};
+ uint16 gid() const { return _gid; }
+ Slot *open() const { return _open; }
+ Slot *close() const { return _close; }
+ uint8 mask() const { return _mask; }
+ int8 before() const { return _before; }
+ BracketPair *parent() const { return _parent; }
+ void close(Slot *s) { _close = s; }
+ BracketPair *next() const { return _next; }
+ BracketPair *prev() const { return _prev; }
+ void next(BracketPair *n) { _next = n; }
+ void orin(uint8 m) { _mask |= m; }
+private:
+ Slot * _open; // Slot of opening paren
+ Slot * _close; // Slot of closing paren
+ BracketPair * _parent; // pair this pair is in or NULL
+ BracketPair * _next; // next pair along the string
+ BracketPair * _prev; // pair that closed last before we opened
+ uint16 _gid; // gid of closing paren
+ uint8 _mask; // bitmap (2 bits) of directions within the pair
+ int8 _before; // most recent strong type (L, R, OPP, CPP)
+};
+
+class BracketPairStack
+{
+public:
+ BracketPairStack(int s) : _stack(grzeroalloc<BracketPair>(s)), _ip(_stack - 1), _top(0), _last(0), _lastclose(0), _size(s) {}
+ ~BracketPairStack() { free(_stack); }
+
+public:
+ BracketPair *scan(uint16 gid);
+ void close(BracketPair *tos, Slot *s);
+ BracketPair *push(uint16 gid, Slot *pos, uint8 before, int prevopen);
+ void orin(uint8 mask);
+ void clear() { _ip = _stack - 1; _top = 0; _last = 0; _lastclose = 0; }
+ int size() const { return _size; }
+ BracketPair *start() const { return _stack; }
+
+ CLASS_NEW_DELETE
+
+private:
+
+ BracketPair *_stack; // start of storage
+ BracketPair *_ip; // where to add the next pair
+ BracketPair *_top; // current parent
+ BracketPair *_last; // end of next() chain
+ BracketPair *_lastclose; // last pair to close
+ int _size; // capacity
+};
+
+inline BracketPair *BracketPairStack::scan(uint16 gid)
+{
+ BracketPair *res = _top;
+ while (res >= _stack)
+ {
+ if (res->gid() == gid)
+ return res;
+ res = res->parent();
+ }
+ return 0;
+}
+
+inline void BracketPairStack::close(BracketPair *tos, Slot *s)
+{
+ for ( ; _last && _last != tos && !_last->close(); _last = _last->parent())
+ { }
+ tos->close(s);
+ _last->next(NULL);
+ _lastclose = tos;
+ _top = tos->parent();
+}
+
+inline BracketPair *BracketPairStack::push(uint16 gid, Slot *pos, uint8 before, int prevopen)
+{
+ if (++_ip - _stack < _size && _stack)
+ {
+ ::new (_ip) BracketPair(gid, pos, before, _top, prevopen ? _last : _lastclose);
+ if (_last) _last->next(_ip);
+ _last = _ip;
+ }
+ _top = _ip;
+ return _ip;
+}
+
+inline void BracketPairStack::orin(uint8 mask)
+{
+ BracketPair *t = _top;
+ for ( ; t; t = t->parent())
+ t->orin(mask);
+}
+
+}
diff --git a/gfx/graphite2/src/inc/CachedFace.h b/gfx/graphite2/src/inc/CachedFace.h
new file mode 100644
index 000000000..53674754e
--- /dev/null
+++ b/gfx/graphite2/src/inc/CachedFace.h
@@ -0,0 +1,56 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include "inc/Face.h"
+
+namespace graphite2 {
+
+class SegCacheStore;
+class SegCache;
+
+class CachedFace : public Face
+{
+ CachedFace(const CachedFace &);
+ CachedFace & operator = (const CachedFace &);
+
+public:
+ CachedFace(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops);
+ bool setupCache(unsigned int cacheSize);
+ virtual ~CachedFace();
+ virtual bool runGraphite(Segment *seg, const Silf *silf) const;
+ SegCacheStore * cacheStore() { return m_cacheStore; }
+private:
+ SegCacheStore * m_cacheStore;
+};
+
+} // namespace graphite2
+
+#endif
+
diff --git a/gfx/graphite2/src/inc/CharInfo.h b/gfx/graphite2/src/inc/CharInfo.h
new file mode 100644
index 000000000..d9e56eeed
--- /dev/null
+++ b/gfx/graphite2/src/inc/CharInfo.h
@@ -0,0 +1,67 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include "inc/Main.h"
+
+
+namespace graphite2 {
+
+class CharInfo
+{
+
+public:
+ CharInfo() : m_char(0), m_before(-1), m_after(-1), m_base(0), m_featureid(0), m_break(0), m_flags(0) {}
+ void init(int cid) { m_char = cid; }
+ unsigned int unicodeChar() const { return m_char; }
+ void feats(int offset) { m_featureid = offset; }
+ int fid() const { return m_featureid; }
+ int breakWeight() const { return m_break; }
+ void breakWeight(int val) { m_break = val; }
+ int after() const { return m_after; }
+ void after(int val) { m_after = val; }
+ int before() const { return m_before; }
+ void before(int val) { m_before = val; }
+ size_t base() const { return m_base; }
+ void base(size_t offset) { m_base = offset; }
+ void addflags(uint8 val) { m_flags |= val; }
+ uint8 flags() const { return m_flags; }
+
+ CLASS_NEW_DELETE
+private:
+ int m_char; // Unicode character from character stream
+ int m_before; // slot index before us, comes before
+ int m_after; // slot index after us, comes after
+ size_t m_base; // offset into input string corresponding to this charinfo
+ uint8 m_featureid; // index into features list in the segment
+ int8 m_break; // breakweight coming from lb table
+ uint8 m_flags; // 0,1 segment split.
+};
+
+} // namespace graphite2
+
+struct gr_char_info : public graphite2::CharInfo {};
+
diff --git a/gfx/graphite2/src/inc/CmapCache.h b/gfx/graphite2/src/inc/CmapCache.h
new file mode 100644
index 000000000..7820c958b
--- /dev/null
+++ b/gfx/graphite2/src/inc/CmapCache.h
@@ -0,0 +1,82 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "inc/Main.h"
+#include "inc/Face.h"
+
+namespace graphite2 {
+
+class Face;
+
+class Cmap
+{
+public:
+
+ virtual ~Cmap() throw() {}
+
+ virtual uint16 operator [] (const uint32) const throw() { return 0; }
+
+ virtual operator bool () const throw() { return false; }
+
+ CLASS_NEW_DELETE;
+};
+
+class DirectCmap : public Cmap
+{
+ DirectCmap(const DirectCmap &);
+ DirectCmap & operator = (const DirectCmap &);
+
+public:
+ DirectCmap(const Face &);
+ virtual uint16 operator [] (const uint32 usv) const throw();
+ virtual operator bool () const throw();
+
+ CLASS_NEW_DELETE;
+private:
+ const Face::Table _cmap;
+ const void * _smp,
+ * _bmp;
+};
+
+class CachedCmap : public Cmap
+{
+ CachedCmap(const CachedCmap &);
+ CachedCmap & operator = (const CachedCmap &);
+
+public:
+ CachedCmap(const Face &);
+ virtual ~CachedCmap() throw();
+ virtual uint16 operator [] (const uint32 usv) const throw();
+ virtual operator bool () const throw();
+ CLASS_NEW_DELETE;
+private:
+ bool m_isBmpOnly;
+ uint16 ** m_blocks;
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Code.h b/gfx/graphite2/src/inc/Code.h
new file mode 100644
index 000000000..3985ae416
--- /dev/null
+++ b/gfx/graphite2/src/inc/Code.h
@@ -0,0 +1,171 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This class represents loaded graphite stack machine code. It performs
+// basic sanity checks, on the incoming code to prevent more obvious problems
+// from crashing graphite.
+// Author: Tim Eves
+
+#pragma once
+
+#include <cassert>
+#include <graphite2/Types.h>
+#include "inc/Main.h"
+#include "inc/Machine.h"
+
+namespace graphite2 {
+
+class Silf;
+class Face;
+
+enum passtype {
+ PASS_TYPE_UNKNOWN = 0,
+ PASS_TYPE_LINEBREAK,
+ PASS_TYPE_SUBSTITUTE,
+ PASS_TYPE_POSITIONING,
+ PASS_TYPE_JUSTIFICATION
+};
+
+namespace vm {
+
+class Machine::Code
+{
+public:
+ enum status_t
+ {
+ loaded,
+ alloc_failed,
+ invalid_opcode,
+ unimplemented_opcode_used,
+ out_of_range_data,
+ jump_past_end,
+ arguments_exhausted,
+ missing_return,
+ nested_context_item,
+ underfull_stack
+ };
+
+private:
+ class decoder;
+
+ instr * _code;
+ byte * _data;
+ size_t _data_size,
+ _instr_count;
+ byte _max_ref;
+ mutable status_t _status;
+ bool _constraint,
+ _modify,
+ _delete;
+ mutable bool _own;
+
+ void release_buffers() throw ();
+ void failure(const status_t) throw();
+
+public:
+ static size_t estimateCodeDataOut(size_t num_bytecodes, int nRules, int nSlots);
+
+ Code() throw();
+ Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end,
+ uint8 pre_context, uint16 rule_length, const Silf &, const Face &,
+ enum passtype pt, byte * * const _out = 0);
+ Code(const Machine::Code &) throw();
+ ~Code() throw();
+
+ Code & operator=(const Code &rhs) throw();
+ operator bool () const throw() { return _code && status() == loaded; }
+ status_t status() const throw() { return _status; }
+ bool constraint() const throw() { return _constraint; }
+ size_t dataSize() const throw() { return _data_size; }
+ size_t instructionCount() const throw() { return _instr_count; }
+ bool immutable() const throw() { return !(_delete || _modify); }
+ bool deletes() const throw() { return _delete; }
+ size_t maxRef() const throw() { return _max_ref; }
+ void externalProgramMoved(ptrdiff_t) throw();
+
+ int32 run(Machine &m, slotref * & map) const;
+
+ CLASS_NEW_DELETE;
+};
+
+inline
+size_t Machine::Code::estimateCodeDataOut(size_t n_bc, int nRules, int nSlots)
+{
+ // max is: all codes are instructions + 1 for each rule + max tempcopies
+ // allocate space for separate maximal code and data then merge them later
+ return (n_bc + nRules + nSlots) * sizeof(instr) + n_bc * sizeof(byte);
+}
+
+
+inline Machine::Code::Code() throw()
+: _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0),
+ _status(loaded), _constraint(false), _modify(false), _delete(false),
+ _own(false)
+{
+}
+
+inline Machine::Code::Code(const Machine::Code &obj) throw ()
+ : _code(obj._code),
+ _data(obj._data),
+ _data_size(obj._data_size),
+ _instr_count(obj._instr_count),
+ _max_ref(obj._max_ref),
+ _status(obj._status),
+ _constraint(obj._constraint),
+ _modify(obj._modify),
+ _delete(obj._delete),
+ _own(obj._own)
+{
+ obj._own = false;
+}
+
+inline Machine::Code & Machine::Code::operator=(const Machine::Code &rhs) throw() {
+ if (_instr_count > 0)
+ release_buffers();
+ _code = rhs._code;
+ _data = rhs._data;
+ _data_size = rhs._data_size;
+ _instr_count = rhs._instr_count;
+ _status = rhs._status;
+ _constraint = rhs._constraint;
+ _modify = rhs._modify;
+ _delete = rhs._delete;
+ _own = rhs._own;
+ rhs._own = false;
+ return *this;
+}
+
+inline void Machine::Code::externalProgramMoved(ptrdiff_t dist) throw()
+{
+ if (_code && !_own)
+ {
+ _code += dist / sizeof(instr);
+ _data += dist;
+ }
+}
+
+} // namespace vm
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Collider.h b/gfx/graphite2/src/inc/Collider.h
new file mode 100644
index 000000000..5d953b4a4
--- /dev/null
+++ b/gfx/graphite2/src/inc/Collider.h
@@ -0,0 +1,244 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "inc/List.h"
+#include "inc/Position.h"
+#include "inc/Intervals.h"
+#include "inc/debug.h"
+
+namespace graphite2 {
+
+class json;
+class Slot;
+class Segment;
+
+#define SLOTCOLSETUINTPROP(x, y) uint16 x() const { return _ ##x; } void y (uint16 v) { _ ##x = v; }
+#define SLOTCOLSETINTPROP(x, y) int16 x() const { return _ ##x; } void y (int16 v) { _ ##x = v; }
+#define SLOTCOLSETPOSITIONPROP(x, y) const Position &x() const { return _ ##x; } void y (const Position &v) { _ ##x = v; }
+
+// Slot attributes related to collision-fixing
+class SlotCollision
+{
+public:
+ enum {
+ // COLL_TESTONLY = 0, // default - test other glyphs for collision with this one, but don't move this one
+ COLL_FIX = 1, // fix collisions involving this glyph
+ COLL_IGNORE = 2, // ignore this glyph altogether
+ COLL_START = 4, // start of range of possible collisions
+ COLL_END = 8, // end of range of possible collisions
+ COLL_KERN = 16, // collisions with this glyph are fixed by adding kerning space after it
+ COLL_ISCOL = 32, // this glyph has a collision
+ COLL_KNOWN = 64, // we've figured out what's happening with this glyph
+ COLL_ISSPACE = 128, // treat this glyph as a space with regard to kerning
+ COLL_TEMPLOCK = 256, // Lock glyphs that have been given priority positioning
+ ////COLL_JUMPABLE = 128, // moving glyphs may jump this stationary glyph in any direction - DELETE
+ ////COLL_OVERLAP = 256, // use maxoverlap to restrict - DELETE
+ };
+
+ // Behavior for the collision.order attribute. To GDL this is an enum, to us it's a bitfield, with only 1 bit set
+ // Allows for easier inversion.
+ enum {
+ SEQ_ORDER_LEFTDOWN = 1,
+ SEQ_ORDER_RIGHTUP = 2,
+ SEQ_ORDER_NOABOVE = 4,
+ SEQ_ORDER_NOBELOW = 8,
+ SEQ_ORDER_NOLEFT = 16,
+ SEQ_ORDER_NORIGHT = 32
+ };
+
+ SlotCollision(Segment *seg, Slot *slot);
+ void initFromSlot(Segment *seg, Slot *slot);
+
+ const Rect &limit() const { return _limit; }
+ void setLimit(const Rect &r) { _limit = r; }
+ SLOTCOLSETPOSITIONPROP(shift, setShift)
+ SLOTCOLSETPOSITIONPROP(offset, setOffset)
+ SLOTCOLSETPOSITIONPROP(exclOffset, setExclOffset)
+ SLOTCOLSETUINTPROP(margin, setMargin)
+ SLOTCOLSETUINTPROP(marginWt, setMarginWt)
+ SLOTCOLSETUINTPROP(flags, setFlags)
+ SLOTCOLSETUINTPROP(exclGlyph, setExclGlyph)
+ SLOTCOLSETUINTPROP(seqClass, setSeqClass)
+ SLOTCOLSETUINTPROP(seqProxClass, setSeqProxClass)
+ SLOTCOLSETUINTPROP(seqOrder, setSeqOrder)
+ SLOTCOLSETINTPROP(seqAboveXoff, setSeqAboveXoff)
+ SLOTCOLSETUINTPROP(seqAboveWt, setSeqAboveWt)
+ SLOTCOLSETINTPROP(seqBelowXlim, setSeqBelowXlim)
+ SLOTCOLSETUINTPROP(seqBelowWt, setSeqBelowWt)
+ SLOTCOLSETUINTPROP(seqValignHt, setSeqValignHt)
+ SLOTCOLSETUINTPROP(seqValignWt, setSeqValignWt)
+
+ float getKern(int dir) const;
+ bool ignore() const;
+
+private:
+ Rect _limit;
+ Position _shift; // adjustment within the given pass
+ Position _offset; // total adjustment for collisions
+ Position _exclOffset;
+ uint16 _margin;
+ uint16 _marginWt;
+ uint16 _flags;
+ uint16 _exclGlyph;
+ uint16 _seqClass;
+ uint16 _seqProxClass;
+ uint16 _seqOrder;
+ int16 _seqAboveXoff;
+ uint16 _seqAboveWt;
+ int16 _seqBelowXlim;
+ uint16 _seqBelowWt;
+ uint16 _seqValignHt;
+ uint16 _seqValignWt;
+
+}; // end of class SlotColllision
+
+struct BBox;
+struct SlantBox;
+
+class ShiftCollider
+{
+public:
+ typedef std::pair<float, float> fpair;
+ typedef Vector<fpair> vfpairs;
+ typedef vfpairs::iterator ivfpairs;
+
+ ShiftCollider(json *dbgout);
+ ~ShiftCollider() throw() { };
+
+ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint,
+ float margin, float marginMin, const Position &currShift,
+ const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout);
+ bool mergeSlot(Segment *seg, Slot *slot, const SlotCollision *cinfo, const Position &currShift, bool isAfter,
+ bool sameCluster, bool &hasCol, bool isExclusion, GR_MAYBE_UNUSED json * const dbgout);
+ Position resolve(Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout);
+ void addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int mode);
+ void removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int mode);
+ const Position &origin() const { return _origin; }
+
+#if !defined GRAPHITE2_NTRACING
+ void outputJsonDbg(json * const dbgout, Segment *seg, int axis);
+ void outputJsonDbgStartSlot(json * const dbgout, Segment *seg);
+ void outputJsonDbgEndSlot(json * const dbgout, Position resultPos, int bestAxis, bool isCol);
+ void outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis, float tleft, float bestCost, float bestVal);
+ void outputJsonDbgRawRanges(json * const dbgout, int axis);
+ void outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg);
+#endif
+
+ CLASS_NEW_DELETE;
+
+protected:
+ Zones _ranges[4]; // possible movements in 4 directions (horizontally, vertically, diagonally);
+ Slot * _target; // the glyph to fix
+ Rect _limit;
+ Position _currShift;
+ Position _currOffset;
+ Position _origin; // Base for all relative calculations
+ float _margin;
+ float _marginWt;
+ float _len[4];
+ uint16 _seqClass;
+ uint16 _seqProxClass;
+ uint16 _seqOrder;
+
+ //bool _scraping[4];
+
+}; // end of class ShiftCollider
+
+inline
+ShiftCollider::ShiftCollider(GR_MAYBE_UNUSED json *dbgout)
+: _target(0),
+ _margin(0.0),
+ _marginWt(0.0),
+ _seqClass(0),
+ _seqProxClass(0),
+ _seqOrder(0)
+{
+#if !defined GRAPHITE2_NTRACING
+ for (int i = 0; i < 4; ++i)
+ _ranges[i].setdebug(dbgout);
+#endif
+}
+
+class KernCollider
+{
+public:
+ KernCollider(json *dbg);
+ ~KernCollider() throw() { };
+ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint, float margin,
+ const Position &currShift, const Position &offsetPrev, int dir,
+ float ymin, float ymax, json * const dbgout);
+ bool mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, json * const dbgout);
+ Position resolve(Segment *seg, Slot *slot, int dir, json * const dbgout);
+ void shift(const Position &mv, int dir);
+
+ CLASS_NEW_DELETE;
+
+private:
+ Slot * _target; // the glyph to fix
+ Rect _limit;
+ float _margin;
+ Position _offsetPrev; // kern from a previous pass
+ Position _currShift; // NOT USED??
+ float _miny; // y-coordinates offset by global slot position
+ float _maxy;
+ Vector<float> _edges; // edges of horizontal slices
+ float _sliceWidth; // width of each slice
+ float _mingap;
+ float _xbound; // max or min edge
+
+#if !defined GRAPHITE2_NTRACING
+ // Debugging
+ Segment * _seg;
+ Vector<float> _nearEdges; // closest potential collision in each slice
+ Vector<Slot*> _slotNear;
+#endif
+}; // end of class KernCollider
+
+
+inline
+float sqr(float x) {
+ return x * x;
+}
+
+inline
+KernCollider::KernCollider(GR_MAYBE_UNUSED json *dbg)
+: _target(0),
+ _margin(0.0f),
+ _miny(-1e38f),
+ _maxy(1e38f),
+ _sliceWidth(0.0f),
+ _mingap(0.0f),
+ _xbound(0.0)
+{
+#if !defined GRAPHITE2_NTRACING
+ _seg = 0;
+#endif
+};
+
+}; // end of namespace graphite2
+
diff --git a/gfx/graphite2/src/inc/Compression.h b/gfx/graphite2/src/inc/Compression.h
new file mode 100644
index 000000000..61351c416
--- /dev/null
+++ b/gfx/graphite2/src/inc/Compression.h
@@ -0,0 +1,103 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2015, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#pragma once
+
+#include <cassert>
+#include <cstddef>
+#include <cstring>
+
+namespace
+{
+
+#if defined(_MSC_VER)
+typedef unsigned __int8 u8;
+typedef unsigned __int16 u16;
+typedef unsigned __int32 u32;
+typedef unsigned __int64 u64;
+#else
+#include <stdint.h>
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+#endif
+
+ptrdiff_t const MINMATCH = 4;
+
+template<int S>
+inline
+void unaligned_copy(void * d, void const * s) {
+ ::memcpy(d, s, S);
+}
+
+inline
+size_t align(size_t p) {
+ return (p + sizeof(unsigned long)-1) & ~(sizeof(unsigned long)-1);
+}
+
+inline
+u8 * safe_copy(u8 * d, u8 const * s, size_t n) {
+ while (n--) *d++ = *s++;
+ return d;
+}
+
+inline
+u8 * overrun_copy(u8 * d, u8 const * s, size_t n) {
+ size_t const WS = sizeof(unsigned long);
+ u8 const * e = s + n;
+ do
+ {
+ unaligned_copy<WS>(d, s);
+ d += WS;
+ s += WS;
+ }
+ while (s < e);
+ d-=(s-e);
+
+ return d;
+}
+
+
+inline
+u8 * fast_copy(u8 * d, u8 const * s, size_t n) {
+ size_t const WS = sizeof(unsigned long);
+ size_t wn = n/WS;
+ while (wn--)
+ {
+ unaligned_copy<WS>(d, s);
+ d += WS;
+ s += WS;
+ }
+ n &= WS-1;
+ return safe_copy(d, s, n);
+}
+
+
+} // end of anonymous namespace
+
+
diff --git a/gfx/graphite2/src/inc/Decompressor.h b/gfx/graphite2/src/inc/Decompressor.h
new file mode 100644
index 000000000..3d81864d1
--- /dev/null
+++ b/gfx/graphite2/src/inc/Decompressor.h
@@ -0,0 +1,56 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2015, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#pragma once
+
+#include <cstddef>
+
+namespace lz4
+{
+
+// decompress an LZ4 block
+// Parameters:
+// @in - Input buffer containing an LZ4 block.
+// @in_size - Size of the input LZ4 block in bytes.
+// @out - Output buffer to hold decompressed results.
+// @out_size - The size of the buffer pointed to by @out.
+// Invariants:
+// @in - This buffer must be at least 1 machine word in length,
+// regardless of the actual LZ4 block size.
+// @in_size - This must be at least 4 and must also be <= to the
+// allocated buffer @in.
+// @out - This must be bigger than the input buffer and at least
+// 13 bytes.
+// @out_size - Must always be big enough to hold the expected size.
+// Return:
+// -1 - Decompression failed.
+// size - Actual number of bytes decompressed.
+int decompress(void const *in, size_t in_size, void *out, size_t out_size);
+
+} // end of namespace shrinker
+
+
diff --git a/gfx/graphite2/src/inc/Endian.h b/gfx/graphite2/src/inc/Endian.h
new file mode 100644
index 000000000..fc84ec278
--- /dev/null
+++ b/gfx/graphite2/src/inc/Endian.h
@@ -0,0 +1,112 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+/*
+Description:
+ A set of fast template based decoders for decoding values of any C integer
+ type up to long int size laid out with most significant byte first or least
+ significant byte first (aka big endian or little endian). These are CPU
+ byte order agnostic and will function the same regardless of the CPUs native
+ byte order.
+
+ Being template based means if the either le or be class is not used then
+ template code of unused functions will not be instantiated by the compiler
+ and thus shouldn't cause any overhead.
+*/
+
+#include <cstddef>
+
+#pragma once
+
+
+class be
+{
+ template<int S>
+ inline static unsigned long int _peek(const unsigned char * p) {
+ return _peek<S/2>(p) << (S/2)*8 | _peek<S/2>(p+S/2);
+ }
+public:
+ template<typename T>
+ inline static T peek(const void * p) {
+ return T(_peek<sizeof(T)>(static_cast<const unsigned char *>(p)));
+ }
+
+ template<typename T>
+ inline static T read(const unsigned char * &p) {
+ const T r = T(_peek<sizeof(T)>(p));
+ p += sizeof r;
+ return r;
+ }
+
+ template<typename T>
+ inline static T swap(const T x) {
+ return T(_peek<sizeof(T)>(reinterpret_cast<const unsigned char *>(&x)));
+ }
+
+ template<typename T>
+ inline static void skip(const unsigned char * &p, size_t n=1) {
+ p += sizeof(T)*n;
+ }
+};
+
+template<>
+inline unsigned long int be::_peek<1>(const unsigned char * p) { return *p; }
+
+
+class le
+{
+ template<int S>
+ inline static unsigned long int _peek(const unsigned char * p) {
+ return _peek<S/2>(p) | _peek<S/2>(p+S/2) << (S/2)*8;
+ }
+public:
+ template<typename T>
+ inline static T peek(const void * p) {
+ return T(_peek<sizeof(T)>(static_cast<const unsigned char *>(p)));
+ }
+
+ template<typename T>
+ inline static T read(const unsigned char * &p) {
+ const T r = T(_peek<sizeof(T)>(p));
+ p += sizeof r;
+ return r;
+ }
+
+ template<typename T>
+ inline static T swap(const T x) {
+ return T(_peek<sizeof(T)>(reinterpret_cast<const unsigned char *>(&x)));
+ }
+
+ template<typename T>
+ inline static void skip(const unsigned char * &p, size_t n=1) {
+ p += sizeof(T)*n;
+ }
+};
+
+template<>
+inline unsigned long int le::_peek<1>(const unsigned char * p) { return *p; }
+
diff --git a/gfx/graphite2/src/inc/Error.h b/gfx/graphite2/src/inc/Error.h
new file mode 100644
index 000000000..07d70b78e
--- /dev/null
+++ b/gfx/graphite2/src/inc/Error.h
@@ -0,0 +1,135 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2013, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+// numbers are explicitly assigned for future proofing
+
+namespace graphite2
+{
+
+class Error
+{
+public:
+ Error() : _e(0) {};
+ operator bool() { return (_e != 0); }
+ int error() { return _e; }
+ void error(int e) { _e = e; }
+ bool test(bool pr, int err) { return (_e = int(pr) * err); }
+
+private:
+ int _e;
+};
+
+enum errcontext {
+ EC_READGLYPHS = 1, // while reading glyphs
+ EC_READSILF = 2, // in Silf table
+ EC_ASILF = 3, // in Silf %d
+ EC_APASS = 4, // in Silf %d, pass %d
+ EC_PASSCCODE = 5, // in pass constraint code for Silf %d, pass %d
+ EC_ARULE = 6, // in Silf %d, pass %d, rule %d
+ EC_ASTARTS = 7, // in Silf %d, pass %d, start state %d
+ EC_ATRANS = 8, // in Silf %d, pass %d, fsm state %d
+ EC_ARULEMAP = 9 // in Silf %d, pass %d, state %d
+};
+
+enum errors {
+ E_OUTOFMEM = 1, // Out of memory
+ E_NOGLYPHS = 2, // There are no glyphs in the font
+ E_BADUPEM = 3, // The units per em for the font is bad (0)
+ E_BADCMAP = 4, // The font does not contain any useful cmaps
+ E_NOSILF = 5, // Missing Silf table
+ E_TOOOLD = 6, // Silf table version is too old
+ E_BADSIZE = 7, // context object has the wrong structural size
+// Silf Subtable Errors take a Silf subtable number * 256 in the context
+ E_BADMAXGLYPH = 8, // Silf max glyph id is too high
+ E_BADNUMJUSTS = 9, // Number of Silf justification blocks is too high
+ E_BADENDJUSTS = 10, // Silf justification blocks take too much of the Silf table space
+ E_BADCRITFEATURES = 11, // Critical features section in a Silf table is too big
+ E_BADSCRIPTTAGS = 12, // Silf script tags area is too big
+ E_BADAPSEUDO = 13, // The pseudo glyph attribute number is too high
+ E_BADABREAK = 14, // The linebreak glyph attribute number is too high
+ E_BADABIDI = 15, // The bidi glyph attribute number is too high
+ E_BADAMIRROR = 16, // The mirrored glyph attribute number is too high
+ E_BADNUMPASSES = 17, // The number of passes is > 128
+ E_BADPASSESSTART = 18, // The Silf table is too small to hold any passes
+ E_BADPASSBOUND = 19, // The positioning pass number is too low or the substitution pass number is too high
+ E_BADPPASS = 20, // The positioning pass number is too high
+ E_BADSPASS = 21, // the substitution pass number is too high
+ E_BADJPASSBOUND = 22, // the justification pass must be higher than the positioning pass
+ E_BADJPASS = 23, // the justification pass is too high
+ E_BADALIG = 24, // the number of initial ligature component glyph attributes is too high
+ E_BADBPASS = 25, // the bidi pass number is specified and is either too high or too low
+ E_BADNUMPSEUDO = 26, // The number of pseudo glyphs is too high
+ E_BADCLASSSIZE = 27, // The size of the classes block is bad
+ E_TOOMANYLINEAR = 28, // The number of linear classes in the silf table is too high
+ E_CLASSESTOOBIG = 29, // There are too many classes for the space allocated in the Silf subtable
+ E_MISALIGNEDCLASSES = 30, // The class offsets in the class table don't line up with the number of classes
+ E_HIGHCLASSOFFSET = 31, // The class offsets point out of the class table
+ E_BADCLASSOFFSET = 32, // A class offset is less than one following it
+ E_BADCLASSLOOKUPINFO = 33, // The search header info for a non-linear class has wrong values in it
+// Pass subtable errors. Context has pass number * 65536
+ E_BADPASSSTART = 34, // The start offset for a particular pass is bad
+ E_BADPASSEND = 35, // The end offset for a particular pass is bad
+ E_BADPASSLENGTH = 36, // The length of the pass is too small
+ E_BADNUMTRANS = 37, // The number of transition states in the fsm is bad
+ E_BADNUMSUCCESS = 38, // The number of success states in the fsm is bad
+ E_BADNUMSTATES = 39, // The number of states in the fsm is bad
+ E_NORANGES = 40, // There are no columns in the fsm
+ E_BADRULEMAPLEN = 41, // The size of the success state to rule mapping is bad
+ E_BADCTXTLENBOUNDS = 42, // The precontext maximum is greater than its minimum
+ E_BADCTXTLENS = 43, // The lists of rule lengths or pre context lengths is bad
+ E_BADPASSCCODEPTR = 44, // The pass constraint code position does not align with where the forward reference says it should be
+ E_BADRULECCODEPTR = 45, // The rule constraint code position does not align with where the forward reference says it should be
+ E_BADCCODELEN = 46, // Bad rule/pass constraint code length
+ E_BADACTIONCODEPTR = 47, // The action code position does not align with where the forward reference says it should be
+ E_MUTABLECCODE = 48, // Constraint code edits slots. It shouldn't.
+ E_BADSTATE = 49, // Bad state transition referencing an illegal state
+ E_BADRULEMAPPING = 50, // The structure of the rule mapping is bad
+ E_BADRANGE = 51, // Bad column range structure including a glyph in more than one column
+ E_BADRULENUM = 52, // A reference to a rule is out of range (too high)
+ E_BADACOLLISION = 53, // Bad Silf table collision attribute number (too high)
+ E_BADEMPTYPASS = 54, // Can't have empty passes (no rules) except for collision passes
+ E_BADSILFVERSION = 55, // The Silf table has a bad version (probably too high)
+ E_BADCOLLISIONPASS = 56, // Collision flags set on a non positioning pass
+ E_BADNUMCOLUMNS = 57, // Arbitrarily limit number of columns in fsm
+// Code errors
+ E_CODEFAILURE = 60, // Base code error. The following subcodes must align with Machine::Code::status_t in Code.h
+ E_CODEALLOC = 61, // Out of memory
+ E_INVALIDOPCODE = 62, // Invalid op code
+ E_UNIMPOPCODE = 63, // Unimplemented op code encountered
+ E_OUTOFRANGECODE = 64, // Code argument out of range
+ E_BADJUMPCODE = 65, // Code jumps past end of op codes
+ E_CODEBADARGS = 66, // Code arguments exhausted
+ E_CODENORETURN = 67, // Missing return type op code at end of code
+ E_CODENESTEDCTXT = 68, // Nested context encountered in code
+// Compression errors
+ E_BADSCHEME = 69,
+ E_SHRINKERFAILED = 70,
+};
+
+}
+
diff --git a/gfx/graphite2/src/inc/Face.h b/gfx/graphite2/src/inc/Face.h
new file mode 100644
index 000000000..43ea43196
--- /dev/null
+++ b/gfx/graphite2/src/inc/Face.h
@@ -0,0 +1,225 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <cstdio>
+
+#include "graphite2/Font.h"
+
+#include "inc/Main.h"
+#include "inc/FeatureMap.h"
+#include "inc/TtfUtil.h"
+#include "inc/Silf.h"
+#include "inc/Error.h"
+
+namespace graphite2 {
+
+class Cmap;
+class FileFace;
+class GlyphCache;
+class NameTable;
+class json;
+class Font;
+
+
+using TtfUtil::Tag;
+
+// These are the actual tags, as distinct from the consecutive IDs in TtfUtil.h
+
+class Face
+{
+ // Prevent any kind of copying
+ Face(const Face&);
+ Face& operator=(const Face&);
+
+public:
+ class Table;
+ static float default_glyph_advance(const void* face_ptr, gr_uint16 glyphid);
+
+ Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops);
+ virtual ~Face();
+
+ virtual bool runGraphite(Segment *seg, const Silf *silf) const;
+
+public:
+ bool readGlyphs(uint32 faceOptions);
+ bool readGraphite(const Table & silf);
+ bool readFeatures();
+ void takeFileFace(FileFace* pFileFace/*takes ownership*/);
+
+ const SillMap & theSill() const;
+ const GlyphCache & glyphs() const;
+ Cmap & cmap() const;
+ NameTable * nameTable() const;
+ void setLogger(FILE *log_file);
+ json * logger() const throw();
+
+ const Silf * chooseSilf(uint32 script) const;
+ uint16 languageForLocale(const char * locale) const;
+
+ // Features
+ uint16 numFeatures() const;
+ const FeatureRef * featureById(uint32 id) const;
+ const FeatureRef * feature(uint16 index) const;
+
+ // Glyph related
+ int32 getGlyphMetric(uint16 gid, uint8 metric) const;
+ uint16 findPseudo(uint32 uid) const;
+
+ // Errors
+ unsigned int error() const { return m_error; }
+ bool error(Error e) { m_error = e.error(); return false; }
+ unsigned int error_context() const { return m_error; }
+ void error_context(unsigned int errcntxt) { m_errcntxt = errcntxt; }
+
+ CLASS_NEW_DELETE;
+private:
+ SillMap m_Sill;
+ gr_face_ops m_ops;
+ const void * m_appFaceHandle; // non-NULL
+ FileFace * m_pFileFace; //owned
+ mutable GlyphCache * m_pGlyphFaceCache; // owned - never NULL
+ mutable Cmap * m_cmap; // cmap cache if available
+ mutable NameTable * m_pNames;
+ mutable json * m_logger;
+ unsigned int m_error;
+ unsigned int m_errcntxt;
+protected:
+ Silf * m_silfs; // silf subtables.
+ uint16 m_numSilf; // num silf subtables in the silf table
+private:
+ uint16 m_ascent,
+ m_descent;
+#ifdef GRAPHITE2_TELEMETRY
+public:
+ mutable telemetry tele;
+#endif
+};
+
+
+
+inline
+const SillMap & Face::theSill() const
+{
+ return m_Sill;
+}
+
+inline
+uint16 Face::numFeatures() const
+{
+ return m_Sill.theFeatureMap().numFeats();
+}
+
+inline
+const FeatureRef * Face::featureById(uint32 id) const
+{
+ return m_Sill.theFeatureMap().findFeatureRef(id);
+}
+
+inline
+const FeatureRef *Face::feature(uint16 index) const
+{
+ return m_Sill.theFeatureMap().feature(index);
+}
+
+inline
+const GlyphCache & Face::glyphs() const
+{
+ return *m_pGlyphFaceCache;
+}
+
+inline
+Cmap & Face::cmap() const
+{
+ return *m_cmap;
+};
+
+inline
+json * Face::logger() const throw()
+{
+ return m_logger;
+}
+
+
+
+class Face::Table
+{
+ const Face * _f;
+ mutable const byte * _p;
+ uint32 _sz;
+ bool _compressed;
+
+ Error decompress();
+
+ void releaseBuffers();
+
+public:
+ Table() throw();
+ Table(const Face & face, const Tag n, uint32 version=0xffffffff) throw();
+ Table(const Table & rhs) throw();
+ ~Table() throw();
+
+ operator const byte * () const throw();
+
+ Table & operator = (const Table & rhs) throw();
+ size_t size() const throw();
+};
+
+inline
+Face::Table::Table() throw()
+: _f(0), _p(0), _sz(0), _compressed(false)
+{
+}
+
+inline
+Face::Table::Table(const Table & rhs) throw()
+: _f(rhs._f), _p(rhs._p), _sz(rhs._sz), _compressed(rhs._compressed)
+{
+ rhs._p = 0;
+}
+
+inline
+Face::Table::~Table() throw()
+{
+ releaseBuffers();
+}
+
+inline
+Face::Table::operator const byte * () const throw()
+{
+ return _p;
+}
+
+inline
+size_t Face::Table::size() const throw()
+{
+ return _sz;
+}
+
+} // namespace graphite2
+
+struct gr_face : public graphite2::Face {};
diff --git a/gfx/graphite2/src/inc/FeatureMap.h b/gfx/graphite2/src/inc/FeatureMap.h
new file mode 100644
index 000000000..fc845f6e1
--- /dev/null
+++ b/gfx/graphite2/src/inc/FeatureMap.h
@@ -0,0 +1,193 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include "inc/Main.h"
+#include "inc/FeatureVal.h"
+
+namespace graphite2 {
+
+// Forward declarations for implmentation types
+class FeatureMap;
+class Face;
+
+
+class FeatureSetting
+{
+public:
+ FeatureSetting(int16 theValue, uint16 labelId) : m_label(labelId), m_value(theValue) {};
+ uint16 label() const { return m_label; }
+ int16 value() const { return m_value; }
+
+ CLASS_NEW_DELETE;
+private:
+ FeatureSetting(const FeatureSetting & fs) : m_label(fs.m_label), m_value(fs.m_value) {};
+
+ uint16 m_label;
+ int16 m_value;
+};
+
+class FeatureRef
+{
+ typedef uint32 chunk_t;
+ static const uint8 SIZEOF_CHUNK = sizeof(chunk_t)*8;
+
+public:
+ FeatureRef();
+ FeatureRef(const Face & face, unsigned short & bits_offset, uint32 max_val,
+ uint32 name, uint16 uiName, uint16 flags,
+ FeatureSetting *settings, uint16 num_set) throw();
+ ~FeatureRef() throw();
+
+ bool applyValToFeature(uint32 val, Features& pDest) const; //defined in GrFaceImp.h
+ void maskFeature(Features & pDest) const {
+ if (m_index < pDest.size()) //defensive
+ pDest[m_index] |= m_mask;
+ }
+
+ uint32 getFeatureVal(const Features& feats) const; //defined in GrFaceImp.h
+
+ uint32 getId() const { return m_id; }
+ uint16 getNameId() const { return m_nameid; }
+ uint16 getNumSettings() const { return m_numSet; }
+ uint16 getSettingName(uint16 index) const { return m_nameValues[index].label(); }
+ int16 getSettingValue(uint16 index) const { return m_nameValues[index].value(); }
+ uint32 maxVal() const { return m_max; }
+ const Face* getFace() const { return m_pFace;}
+ const FeatureMap* getFeatureMap() const;// { return m_pFace;}
+
+ CLASS_NEW_DELETE;
+private:
+ FeatureRef(const FeatureRef & rhs);
+
+ const Face * m_pFace; //not NULL
+ FeatureSetting * m_nameValues; // array of name table ids for feature values
+ chunk_t m_mask, // bit mask to get the value from the vector
+ m_max; // max value the value can take
+ uint32 m_id; // feature identifier/name
+ uint16 m_nameid, // Name table id for feature name
+ m_flags, // feature flags (unused at the moment but read from the font)
+ m_numSet; // number of values (number of entries in m_nameValues)
+ byte m_bits, // how many bits to shift the value into place
+ m_index; // index into the array to find the ulong to mask
+
+private: //unimplemented
+ FeatureRef& operator=(const FeatureRef&);
+};
+
+
+inline
+FeatureRef::FeatureRef()
+: m_pFace(0), m_nameValues(0),
+ m_mask(0), m_max(0), m_id(0),
+ m_nameid(0), m_flags(0), m_numSet(0),
+ m_bits(0), m_index(0)
+{
+}
+
+
+class NameAndFeatureRef
+{
+ public:
+ NameAndFeatureRef(uint32 name = 0) : m_name(name) , m_pFRef(NULL){}
+ NameAndFeatureRef(const FeatureRef* p/*not NULL*/) : m_name(p->getId()), m_pFRef(p) {}
+
+ bool operator<(const NameAndFeatureRef& rhs) const //orders by m_name
+ { return m_name<rhs.m_name; }
+
+ CLASS_NEW_DELETE
+
+ uint32 m_name;
+ const FeatureRef* m_pFRef;
+};
+
+class FeatureMap
+{
+public:
+ FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL) {}
+ ~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; }
+
+ bool readFeats(const Face & face);
+ const FeatureRef *findFeatureRef(uint32 name) const;
+ FeatureRef *feature(uint16 index) const { return m_feats + index; }
+ //GrFeatureRef *featureRef(byte index) { return index < m_numFeats ? m_feats + index : NULL; }
+ const FeatureRef *featureRef(byte index) const { return index < m_numFeats ? m_feats + index : NULL; }
+ FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done.
+ uint16 numFeats() const { return m_numFeats; };
+ CLASS_NEW_DELETE
+private:
+friend class SillMap;
+ uint16 m_numFeats;
+
+ FeatureRef *m_feats;
+ NameAndFeatureRef* m_pNamedFeats; //owned
+ FeatureVal m_defaultFeatures; //owned
+
+private: //defensive on m_feats, m_pNamedFeats, and m_defaultFeatures
+ FeatureMap(const FeatureMap&);
+ FeatureMap& operator=(const FeatureMap&);
+};
+
+
+class SillMap
+{
+private:
+ class LangFeaturePair
+ {
+ LangFeaturePair(const LangFeaturePair &);
+ LangFeaturePair & operator = (const LangFeaturePair &);
+
+ public:
+ LangFeaturePair() : m_lang(0), m_pFeatures(0) {}
+ ~LangFeaturePair() { delete m_pFeatures; }
+
+ uint32 m_lang;
+ Features* m_pFeatures; //owns
+ CLASS_NEW_DELETE
+ };
+public:
+ SillMap() : m_langFeats(NULL), m_numLanguages(0) {}
+ ~SillMap() { delete[] m_langFeats; }
+ bool readFace(const Face & face);
+ bool readSill(const Face & face);
+ FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done.
+ uint16 numLanguages() const { return m_numLanguages; };
+ uint32 getLangName(uint16 index) const { return (index < m_numLanguages)? m_langFeats[index].m_lang : 0; };
+
+ const FeatureMap & theFeatureMap() const { return m_FeatureMap; };
+private:
+ FeatureMap m_FeatureMap; //of face
+ LangFeaturePair * m_langFeats;
+ uint16 m_numLanguages;
+
+private: //defensive on m_langFeats
+ SillMap(const SillMap&);
+ SillMap& operator=(const SillMap&);
+};
+
+} // namespace graphite2
+
+struct gr_feature_ref : public graphite2::FeatureRef {};
diff --git a/gfx/graphite2/src/inc/FeatureVal.h b/gfx/graphite2/src/inc/FeatureVal.h
new file mode 100644
index 000000000..5fbcf0820
--- /dev/null
+++ b/gfx/graphite2/src/inc/FeatureVal.h
@@ -0,0 +1,68 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include <cstring>
+#include <cassert>
+#include "inc/Main.h"
+#include "inc/List.h"
+
+namespace graphite2 {
+
+class FeatureRef;
+class FeatureMap;
+
+class FeatureVal : public Vector<uint32>
+{
+public:
+ FeatureVal() : m_pMap(0) { }
+ FeatureVal(int num, const FeatureMap & pMap) : Vector<uint32>(num), m_pMap(&pMap) {}
+ FeatureVal(const FeatureVal & rhs) : Vector<uint32>(rhs), m_pMap(rhs.m_pMap) {}
+
+ FeatureVal & operator = (const FeatureVal & rhs) { Vector<uint32>::operator = (rhs); m_pMap = rhs.m_pMap; return *this; }
+
+ bool operator ==(const FeatureVal & b) const
+ {
+ size_t n = size();
+ if (n != b.size()) return false;
+
+ for(const_iterator l = begin(), r = b.begin(); n && *l == *r; --n, ++l, ++r);
+
+ return n == 0;
+ }
+
+ CLASS_NEW_DELETE
+private:
+ friend class FeatureRef; //so that FeatureRefs can manipulate m_vec directly
+ const FeatureMap* m_pMap;
+};
+
+typedef FeatureVal Features;
+
+} // namespace graphite2
+
+
+struct gr_feature_val : public graphite2::FeatureVal {};
diff --git a/gfx/graphite2/src/inc/FileFace.h b/gfx/graphite2/src/inc/FileFace.h
new file mode 100644
index 000000000..81e501bab
--- /dev/null
+++ b/gfx/graphite2/src/inc/FileFace.h
@@ -0,0 +1,80 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+//#include "inc/FeatureMap.h"
+//#include "inc/GlyphsCache.h"
+//#include "inc/Silf.h"
+
+#ifndef GRAPHITE2_NFILEFACE
+
+#include <cstdio>
+#include <cassert>
+
+#include "graphite2/Font.h"
+
+#include "inc/Main.h"
+#include "inc/TtfTypes.h"
+#include "inc/TtfUtil.h"
+
+namespace graphite2 {
+
+
+class FileFace
+{
+ static const void * get_table_fn(const void* appFaceHandle, unsigned int name, size_t *len);
+ static void rel_table_fn(const void* appFaceHandle, const void *table_buffer);
+
+public:
+ static const gr_face_ops ops;
+
+ FileFace(const char *filename);
+ ~FileFace();
+
+ operator bool () const throw();
+ CLASS_NEW_DELETE;
+
+private: //defensive
+ FILE * _file;
+ size_t _file_len;
+
+ TtfUtil::Sfnt::OffsetSubTable * _header_tbl;
+ TtfUtil::Sfnt::OffsetSubTable::Entry * _table_dir;
+
+ FileFace(const FileFace&);
+ FileFace& operator=(const FileFace&);
+};
+
+inline
+FileFace::operator bool() const throw()
+{
+ return _file && _header_tbl && _table_dir;
+}
+
+} // namespace graphite2
+
+#endif //!GRAPHITE2_NFILEFACE
diff --git a/gfx/graphite2/src/inc/Font.h b/gfx/graphite2/src/inc/Font.h
new file mode 100644
index 000000000..bc7084050
--- /dev/null
+++ b/gfx/graphite2/src/inc/Font.h
@@ -0,0 +1,89 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include <cassert>
+#include "graphite2/Font.h"
+#include "inc/Main.h"
+#include "inc/Face.h"
+
+namespace graphite2 {
+
+#define INVALID_ADVANCE -1e38f // can't be a static const because non-integral
+
+class Font
+{
+public:
+ Font(float ppm, const Face & face, const void * appFontHandle=0, const gr_font_ops * ops=0);
+ virtual ~Font();
+
+ float advance(unsigned short glyphid) const;
+ float scale() const;
+ bool isHinted() const;
+ const Face & face() const;
+
+ CLASS_NEW_DELETE;
+private:
+ gr_font_ops m_ops;
+ const void * const m_appFontHandle;
+ float * m_advances; // One advance per glyph in pixels. Nan if not defined
+ const Face & m_face;
+ float m_scale; // scales from design units to ppm
+ bool m_hinted;
+
+ Font(const Font&);
+ Font& operator=(const Font&);
+};
+
+inline
+float Font::advance(unsigned short glyphid) const
+{
+ if (m_advances[glyphid] == INVALID_ADVANCE)
+ m_advances[glyphid] = (*m_ops.glyph_advance_x)(m_appFontHandle, glyphid);
+ return m_advances[glyphid];
+}
+
+inline
+float Font::scale() const
+{
+ return m_scale;
+}
+
+inline
+bool Font::isHinted() const
+{
+ return m_hinted;
+}
+
+inline
+const Face & Font::face() const
+{
+ return m_face;
+}
+
+} // namespace graphite2
+
+struct gr_font : public graphite2::Font {};
diff --git a/gfx/graphite2/src/inc/GlyphCache.h b/gfx/graphite2/src/inc/GlyphCache.h
new file mode 100644
index 000000000..3c0add58d
--- /dev/null
+++ b/gfx/graphite2/src/inc/GlyphCache.h
@@ -0,0 +1,223 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+
+#include "graphite2/Font.h"
+#include "inc/Main.h"
+#include "inc/Position.h"
+#include "inc/GlyphFace.h"
+
+namespace graphite2 {
+
+class Face;
+class FeatureVal;
+class Segment;
+
+
+struct SlantBox
+{
+ static const SlantBox empty;
+
+// SlantBox(float psi = 0., float pdi = 0., float psa = 0., float pda = 0.) : si(psi), di(pdi), sa(psa), da(pda) {};
+ float width() const { return sa - si; }
+ float height() const { return da - di; }
+ float si; // min
+ float di; // min
+ float sa; // max
+ float da; // max
+};
+
+
+struct BBox
+{
+ BBox(float pxi = 0, float pyi = 0., float pxa = 0., float pya = 0.) : xi(pxi), yi(pyi), xa(pxa), ya(pya) {};
+ float width() const { return xa - xi; }
+ float height() const { return ya - yi; }
+ float xi; // min
+ float yi; // min
+ float xa; // max
+ float ya; // max
+};
+
+
+class GlyphBox
+{
+ GlyphBox(const GlyphBox &);
+ GlyphBox & operator = (const GlyphBox &);
+
+public:
+ GlyphBox(uint8 numsubs, unsigned short bitmap, Rect *slanted) : _num(numsubs), _bitmap(bitmap), _slant(*slanted) {};
+
+ void addSubBox(int subindex, int boundary, Rect *val) { _subs[subindex * 2 + boundary] = *val; }
+ Rect &subVal(int subindex, int boundary) { return _subs[subindex * 2 + boundary]; }
+ const Rect &slant() const { return _slant; }
+ uint8 num() const { return _num; }
+ const Rect *subs() const { return _subs; }
+
+private:
+ uint8 _num;
+ unsigned short _bitmap;
+ Rect _slant;
+ Rect _subs[1];
+};
+
+class GlyphCache
+{
+ class Loader;
+
+ GlyphCache(const GlyphCache&);
+ GlyphCache& operator=(const GlyphCache&);
+
+public:
+ GlyphCache(const Face & face, const uint32 face_options);
+ ~GlyphCache();
+
+ unsigned short numGlyphs() const throw();
+ unsigned short numAttrs() const throw();
+ unsigned short unitsPerEm() const throw();
+
+ const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid
+ const GlyphFace *glyphSafe(unsigned short glyphid) const;
+ float getBoundingMetric(unsigned short glyphid, uint8 metric) const;
+ uint8 numSubBounds(unsigned short glyphid) const;
+ float getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const;
+ const Rect & slant(unsigned short glyphid) const { return _boxes[glyphid] ? _boxes[glyphid]->slant() : _empty_slant_box; }
+ const SlantBox & getBoundingSlantBox(unsigned short glyphid) const;
+ const BBox & getBoundingBBox(unsigned short glyphid) const;
+ const SlantBox & getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const;
+ const BBox & getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const;
+ bool check(unsigned short glyphid) const;
+ bool hasBoxes() const { return _boxes != 0; }
+
+ CLASS_NEW_DELETE;
+
+private:
+ const Rect _empty_slant_box;
+ const Loader * _glyph_loader;
+ const GlyphFace * * _glyphs;
+ GlyphBox * * _boxes;
+ unsigned short _num_glyphs,
+ _num_attrs,
+ _upem;
+};
+
+inline
+unsigned short GlyphCache::numGlyphs() const throw()
+{
+ return _num_glyphs;
+}
+
+inline
+unsigned short GlyphCache::numAttrs() const throw()
+{
+ return _num_attrs;
+}
+
+inline
+unsigned short GlyphCache::unitsPerEm() const throw()
+{
+ return _upem;
+}
+
+inline
+bool GlyphCache::check(unsigned short glyphid) const
+{
+ return _boxes && glyphid < _num_glyphs;
+}
+
+inline
+const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const
+{
+ return glyphid < _num_glyphs ? glyph(glyphid) : NULL;
+}
+
+inline
+float GlyphCache::getBoundingMetric(unsigned short glyphid, uint8 metric) const
+{
+ if (glyphid >= _num_glyphs) return 0.;
+ switch (metric) {
+ case 0: return (float)(glyph(glyphid)->theBBox().bl.x); // x_min
+ case 1: return (float)(glyph(glyphid)->theBBox().bl.y); // y_min
+ case 2: return (float)(glyph(glyphid)->theBBox().tr.x); // x_max
+ case 3: return (float)(glyph(glyphid)->theBBox().tr.y); // y_max
+ case 4: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.x : 0.f); // sum_min
+ case 5: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.y : 0.f); // diff_min
+ case 6: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.x : 0.f); // sum_max
+ case 7: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.y : 0.f); // diff_max
+ default: return 0.;
+ }
+}
+
+inline const SlantBox &GlyphCache::getBoundingSlantBox(unsigned short glyphid) const
+{
+ return _boxes[glyphid] ? *(SlantBox *)(&(_boxes[glyphid]->slant())) : SlantBox::empty;
+}
+
+inline const BBox &GlyphCache::getBoundingBBox(unsigned short glyphid) const
+{
+ return *(BBox *)(&(glyph(glyphid)->theBBox()));
+}
+
+inline
+float GlyphCache::getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const
+{
+ GlyphBox *b = _boxes[glyphid];
+ if (b == NULL || subindex >= b->num()) return 0;
+
+ switch (metric) {
+ case 0: return b->subVal(subindex, 0).bl.x;
+ case 1: return b->subVal(subindex, 0).bl.y;
+ case 2: return b->subVal(subindex, 0).tr.x;
+ case 3: return b->subVal(subindex, 0).tr.y;
+ case 4: return b->subVal(subindex, 1).bl.x;
+ case 5: return b->subVal(subindex, 1).bl.y;
+ case 6: return b->subVal(subindex, 1).tr.x;
+ case 7: return b->subVal(subindex, 1).tr.y;
+ default: return 0.;
+ }
+}
+
+inline const SlantBox &GlyphCache::getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const
+{
+ GlyphBox *b = _boxes[glyphid];
+ return *(SlantBox *)(b->subs() + 2 * subindex + 1);
+}
+
+inline const BBox &GlyphCache::getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const
+{
+ GlyphBox *b = _boxes[glyphid];
+ return *(BBox *)(b->subs() + 2 * subindex);
+}
+
+inline
+uint8 GlyphCache::numSubBounds(unsigned short glyphid) const
+{
+ return _boxes[glyphid] ? _boxes[glyphid]->num() : 0;
+}
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/GlyphFace.h b/gfx/graphite2/src/inc/GlyphFace.h
new file mode 100644
index 000000000..41685a55f
--- /dev/null
+++ b/gfx/graphite2/src/inc/GlyphFace.h
@@ -0,0 +1,83 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "inc/Main.h"
+#include "inc/Position.h"
+#include "inc/Sparse.h"
+
+namespace graphite2 {
+
+enum metrics {
+ kgmetLsb = 0, kgmetRsb,
+ kgmetBbTop, kgmetBbBottom, kgmetBbLeft, kgmetBbRight,
+ kgmetBbHeight, kgmetBbWidth,
+ kgmetAdvWidth, kgmetAdvHeight,
+ kgmetAscent, kgmetDescent
+};
+
+
+class GlyphFace
+{
+public:
+ GlyphFace();
+ template<typename I>
+ GlyphFace(const Rect & bbox, const Position & adv, I first, const I last);
+
+ const Position & theAdvance() const;
+ const Rect & theBBox() const { return m_bbox; }
+ const sparse & attrs() const { return m_attrs; }
+ int32 getMetric(uint8 metric) const;
+
+ CLASS_NEW_DELETE;
+private:
+ Rect m_bbox; // bounding box metrics in design units
+ Position m_advance; // Advance width and height in design units
+ sparse m_attrs;
+};
+
+
+// Inlines: class GlyphFace
+//
+inline
+GlyphFace::GlyphFace()
+{}
+
+template<typename I>
+GlyphFace::GlyphFace(const Rect & bbox, const Position & adv, I first, const I last)
+: m_bbox(bbox),
+ m_advance(adv),
+ m_attrs(first, last)
+{
+}
+
+inline
+const Position & GlyphFace::theAdvance() const {
+ return m_advance;
+}
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/GlyphFaceCache.h b/gfx/graphite2/src/inc/GlyphFaceCache.h
new file mode 100644
index 000000000..4afdfbe01
--- /dev/null
+++ b/gfx/graphite2/src/inc/GlyphFaceCache.h
@@ -0,0 +1,103 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "inc/GlyphFace.h"
+#include "graphite2/Font.h"
+
+namespace graphite2 {
+
+class Segment;
+class Face;
+class FeatureVal;
+
+
+class GlyphFaceCacheHeader
+{
+public:
+ bool initialize(const Face & face, const bool dumb_font); //return result indicates success. Do not use if failed.
+ unsigned short numGlyphs() const { return m_nGlyphs; }
+ unsigned short numAttrs() const { return m_numAttrs; }
+
+private:
+friend class Face;
+friend class GlyphFace;
+ const byte* m_pHead,
+ * m_pHHea,
+ * m_pHmtx,
+ * m_pGlat,
+ * m_pGloc,
+ * m_pGlyf,
+ * m_pLoca;
+ size_t m_lHmtx,
+ m_lGlat,
+ m_lGlyf,
+ m_lLoca;
+
+ uint32 m_fGlat;
+ unsigned short m_numAttrs, // number of glyph attributes per glyph
+ m_nGlyphsWithGraphics, //i.e. boundary box and advance
+ m_nGlyphsWithAttributes,
+ m_nGlyphs; // number of glyphs in the font. Max of the above 2.
+ bool m_locFlagsUse32Bit;
+};
+
+class GlyphFaceCache : public GlyphFaceCacheHeader
+{
+public:
+ static GlyphFaceCache* makeCache(const GlyphFaceCacheHeader& hdr /*, EGlyphCacheStrategy requested */);
+
+ GlyphFaceCache(const GlyphFaceCacheHeader& hdr);
+ ~GlyphFaceCache();
+
+ const GlyphFace *glyphSafe(unsigned short glyphid) const { return glyphid<numGlyphs()?glyph(glyphid):NULL; }
+ uint16 glyphAttr(uint16 gid, uint8 gattr) const { if (gattr>=numAttrs()) return 0; const GlyphFace*p=glyphSafe(gid); return p?p->getAttr(gattr):0; }
+
+ void * operator new (size_t s, const GlyphFaceCacheHeader& hdr)
+ {
+ return malloc(s + sizeof(GlyphFace*)*hdr.numGlyphs());
+ }
+ // delete in case an exception is thrown in constructor
+ void operator delete(void* p, const GlyphFaceCacheHeader& ) throw()
+ {
+ free(p);
+ }
+
+ const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid
+ void loadAllGlyphs();
+
+ CLASS_NEW_DELETE
+
+private:
+ GlyphFace **glyphPtrDirect(unsigned short glyphid) const { return (GlyphFace **)((const char*)(this)+sizeof(GlyphFaceCache)+sizeof(GlyphFace*)*glyphid);}
+
+private: //defensive
+ GlyphFaceCache(const GlyphFaceCache&);
+ GlyphFaceCache& operator=(const GlyphFaceCache&);
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Intervals.h b/gfx/graphite2/src/inc/Intervals.h
new file mode 100644
index 000000000..34fecce17
--- /dev/null
+++ b/gfx/graphite2/src/inc/Intervals.h
@@ -0,0 +1,234 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <utility>
+
+#include "inc/Main.h"
+#include "inc/List.h"
+#include "inc/json.h"
+#include "inc/Position.h"
+
+// An IntervalSet represents the possible movement of a given glyph in a given direction
+// (horizontally, vertically, or diagonally).
+// A vector is needed to represent disjoint ranges, eg, -300..-150, 20..200, 500..750.
+// Each pair represents the min/max of a sub-range.
+
+namespace graphite2 {
+
+class Segment;
+
+enum zones_t {SD, XY};
+
+class Zones
+{
+ struct Exclusion
+ {
+ template<zones_t O>
+ static Exclusion weighted(float xmin, float xmax, float f, float a0,
+ float m, float xi, float ai, float c, bool nega);
+
+ float x, // x position
+ xm, // xmax position
+ c, // constant + sum(MiXi^2)
+ sm, // sum(Mi)
+ smx; // sum(MiXi)
+ bool open;
+
+ Exclusion(float x, float w, float smi, float smxi, float c);
+ Exclusion & operator += (Exclusion const & rhs);
+ uint8 outcode(float p) const;
+
+ Exclusion split_at(float p);
+ void left_trim(float p);
+
+ bool track_cost(float & cost, float & x, float origin) const;
+
+ private:
+ float test_position(float origin) const;
+ float cost(float x) const;
+ };
+
+ typedef Vector<Exclusion> exclusions;
+
+ typedef exclusions::iterator iterator;
+ typedef Exclusion * pointer;
+ typedef Exclusion & reference;
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+
+public:
+ typedef exclusions::const_iterator const_iterator;
+ typedef Exclusion const * const_pointer;
+ typedef Exclusion const & const_reference;
+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+
+#if !defined GRAPHITE2_NTRACING
+ struct Debug
+ {
+ Exclusion _excl;
+ bool _isdel;
+ Vector<void *> _env;
+
+ Debug(Exclusion *e, bool isdel, json *dbg) : _excl(*e), _isdel(isdel), _env(dbg->getenvs()) { };
+ };
+
+ typedef Vector<Debug> debugs;
+ typedef debugs::const_iterator idebugs;
+ void addDebug(Exclusion *e);
+ void removeDebug(float pos, float posm);
+ void setdebug(json *dbgout) { _dbg = dbgout; }
+ idebugs dbgs_begin() const { return _dbgs.begin(); }
+ idebugs dbgs_end() const { return _dbgs.end(); }
+ void jsonDbgOut(Segment *seg) const;
+ Position position() const { return Position(_pos, _posm); }
+#endif
+
+ Zones();
+ template<zones_t O>
+ void initialise(float xmin, float xmax, float margin_len, float margin_weight, float ao);
+
+ void exclude(float xmin, float xmax);
+ void exclude_with_margins(float xmin, float xmax, int axis);
+
+ template<zones_t O>
+ void weighted(float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega);
+ void weightedAxis(int axis, float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega);
+
+ float closest( float origin, float &cost) const;
+
+ const_iterator begin() const { return _exclusions.begin(); }
+ const_iterator end() const { return _exclusions.end(); }
+
+private:
+ exclusions _exclusions;
+#if !defined GRAPHITE2_NTRACING
+ json * _dbg;
+ debugs _dbgs;
+#endif
+ float _margin_len,
+ _margin_weight,
+ _pos,
+ _posm;
+
+ void insert(Exclusion e);
+ void remove(float x, float xm);
+ const_iterator find_exclusion_under(float x) const;
+};
+
+
+inline
+Zones::Zones()
+: _margin_len(0), _margin_weight(0), _pos(0), _posm(0)
+{
+#if !defined GRAPHITE2_NTRACING
+ _dbg = 0;
+#endif
+ _exclusions.reserve(8);
+}
+
+inline
+Zones::Exclusion::Exclusion(float x_, float xm_, float smi, float smxi, float c_)
+: x(x_), xm(xm_), c(c_), sm(smi), smx(smxi), open(false)
+{ }
+
+template<zones_t O>
+inline
+void Zones::initialise(float xmin, float xmax, float margin_len,
+ float margin_weight, float a0)
+{
+ _margin_len = margin_len;
+ _margin_weight = margin_weight;
+ _pos = xmin;
+ _posm = xmax;
+ _exclusions.clear();
+ _exclusions.push_back(Exclusion::weighted<O>(xmin, xmax, 1, a0, 0, 0, 0, 0, false));
+ _exclusions.front().open = true;
+#if !defined GRAPHITE2_NTRACING
+ _dbgs.clear();
+#endif
+}
+
+inline
+void Zones::exclude(float xmin, float xmax) {
+ remove(xmin, xmax);
+}
+
+template<zones_t O>
+inline
+void Zones::weighted(float xmin, float xmax, float f, float a0,
+ float m, float xi, float ai, float c, bool nega) {
+ insert(Exclusion::weighted<O>(xmin, xmax, f, a0, m, xi, ai, c, nega));
+}
+
+inline
+void Zones::weightedAxis(int axis, float xmin, float xmax, float f, float a0,
+ float m, float xi, float ai, float c, bool nega) {
+ if (axis < 2)
+ weighted<XY>(xmin, xmax, f, a0, m, xi, ai, c, nega);
+ else
+ weighted<SD>(xmin, xmax, f, a0, m, xi, ai, c, nega);
+}
+
+#if !defined GRAPHITE2_NTRACING
+inline
+void Zones::addDebug(Exclusion *e) {
+ if (_dbg)
+ _dbgs.push_back(Debug(e, false, _dbg));
+}
+
+inline
+void Zones::removeDebug(float pos, float posm) {
+ if (_dbg)
+ {
+ Exclusion e(pos, posm, 0, 0, 0);
+ _dbgs.push_back(Debug(&e, true, _dbg));
+ }
+}
+#endif
+
+template<>
+inline
+Zones::Exclusion Zones::Exclusion::weighted<XY>(float xmin, float xmax, float f, float a0,
+ float m, float xi, GR_MAYBE_UNUSED float ai, float c, GR_MAYBE_UNUSED bool nega) {
+ return Exclusion(xmin, xmax,
+ m + f,
+ m * xi,
+ m * xi * xi + f * a0 * a0 + c);
+}
+
+template<>
+inline
+Zones::Exclusion Zones::Exclusion::weighted<SD>(float xmin, float xmax, float f, float a0,
+ float m, float xi, float ai,float c, bool nega) {
+ float xia = nega ? xi - ai : xi + ai;
+ return Exclusion(xmin, xmax,
+ 0.25f * (m + 2.f * f),
+ 0.25f * m * xia,
+ 0.25f * (m * xia * xia + 2.f * f * a0 * a0) + c);
+}
+
+} // end of namespace graphite2
diff --git a/gfx/graphite2/src/inc/List.h b/gfx/graphite2/src/inc/List.h
new file mode 100644
index 000000000..020560235
--- /dev/null
+++ b/gfx/graphite2/src/inc/List.h
@@ -0,0 +1,165 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+// designed to have a limited subset of the std::vector api
+#pragma once
+
+#include <cstddef>
+#include <cassert>
+#include <cstring>
+#include <cstdlib>
+#include <new>
+
+
+namespace graphite2 {
+
+template <typename T>
+inline
+ptrdiff_t distance(T* first, T* last) { return last-first; }
+
+
+template <typename T>
+class Vector
+{
+ T * m_first, *m_last, *m_end;
+public:
+ typedef T & reference;
+ typedef const T & const_reference;
+ typedef T * iterator;
+ typedef const T * const_iterator;
+
+ Vector() : m_first(0), m_last(0), m_end(0) {}
+ Vector(size_t n, const T& value = T()) : m_first(0), m_last(0), m_end(0) { insert(begin(), n, value); }
+ Vector(const Vector<T> &rhs) : m_first(0), m_last(0), m_end(0) { insert(begin(), rhs.begin(), rhs.end()); }
+ template <typename I>
+ Vector(I first, const I last) : m_first(0), m_last(0), m_end(0) { insert(begin(), first, last); }
+ ~Vector() { clear(); free(m_first); }
+
+ iterator begin() { return m_first; }
+ const_iterator begin() const { return m_first; }
+
+ iterator end() { return m_last; }
+ const_iterator end() const { return m_last; }
+
+ bool empty() const { return m_first == m_last; }
+ size_t size() const { return m_last - m_first; }
+ size_t capacity() const{ return m_end - m_first; }
+
+ void reserve(size_t n);
+ void resize(size_t n, const T & v = T());
+
+ reference front() { assert(size() > 0); return *begin(); }
+ const_reference front() const { assert(size() > 0); return *begin(); }
+ reference back() { assert(size() > 0); return *(end()-1); }
+ const_reference back() const { assert(size() > 0); return *(end()-1); }
+
+ Vector<T> & operator = (const Vector<T> & rhs) { assign(rhs.begin(), rhs.end()); return *this; }
+ reference operator [] (size_t n) { assert(size() > n); return m_first[n]; }
+ const_reference operator [] (size_t n) const { assert(size() > n); return m_first[n]; }
+
+ void assign(size_t n, const T& u) { clear(); insert(begin(), n, u); }
+ void assign(const_iterator first, const_iterator last) { clear(); insert(begin(), first, last); }
+ iterator insert(iterator p, const T & x) { p = _insert_default(p, 1); new (p) T(x); return p; }
+ void insert(iterator p, size_t n, const T & x);
+ void insert(iterator p, const_iterator first, const_iterator last);
+ void pop_back() { assert(size() > 0); --m_last; }
+ void push_back(const T &v) { if (m_last == m_end) reserve(size()+1); new (m_last++) T(v); }
+
+ void clear() { erase(begin(), end()); }
+ iterator erase(iterator p) { return erase(p, p+1); }
+ iterator erase(iterator first, iterator last);
+
+private:
+ iterator _insert_default(iterator p, size_t n);
+};
+
+template <typename T>
+inline
+void Vector<T>::reserve(size_t n)
+{
+ if (n > capacity())
+ {
+ const ptrdiff_t sz = size();
+ m_first = static_cast<T*>(realloc(m_first, n*sizeof(T)));
+ if (!m_first) std::abort();
+ m_last = m_first + sz;
+ m_end = m_first + n;
+ }
+}
+
+template <typename T>
+inline
+void Vector<T>::resize(size_t n, const T & v) {
+ const ptrdiff_t d = n-size();
+ if (d < 0) erase(end()+d, end());
+ else if (d > 0) insert(end(), d, v);
+}
+
+template<typename T>
+inline
+typename Vector<T>::iterator Vector<T>::_insert_default(iterator p, size_t n)
+{
+ assert(begin() <= p && p <= end());
+ const ptrdiff_t i = p - begin();
+ reserve(((size() + n + 7) >> 3) << 3);
+ p = begin() + i;
+ // Move tail if there is one
+ if (p != end()) memmove(p + n, p, distance(p,end())*sizeof(T));
+ m_last += n;
+ return p;
+}
+
+template<typename T>
+inline
+void Vector<T>::insert(iterator p, size_t n, const T & x)
+{
+ p = _insert_default(p, n);
+ // Copy in elements
+ for (; n; --n, ++p) { new (p) T(x); }
+}
+
+template<typename T>
+inline
+void Vector<T>::insert(iterator p, const_iterator first, const_iterator last)
+{
+ p = _insert_default(p, distance(first, last));
+ // Copy in elements
+ for (;first != last; ++first, ++p) { new (p) T(*first); }
+}
+
+template<typename T>
+inline
+typename Vector<T>::iterator Vector<T>::erase(iterator first, iterator last)
+{
+ for (iterator e = first; e != last; ++e) e->~T();
+ const size_t sz = distance(first, last);
+ if (m_last != last) memmove(first, last, distance(last,end())*sizeof(T));
+ m_last -= sz;
+ return first;
+}
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Machine.h b/gfx/graphite2/src/inc/Machine.h
new file mode 100644
index 000000000..1a01b7a43
--- /dev/null
+++ b/gfx/graphite2/src/inc/Machine.h
@@ -0,0 +1,200 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This general interpreter interface.
+// Author: Tim Eves
+
+// Build one of direct_machine.cpp or call_machine.cpp to implement this
+// interface.
+
+#pragma once
+#include <cstring>
+#include <graphite2/Types.h>
+#include "inc/Main.h"
+
+#if defined(__GNUC__)
+#if defined(__clang__) || (__GNUC__ * 100 + __GNUC_MINOR__ * 10) < 430
+#define HOT
+#if defined(__x86_64)
+#define REGPARM(n) __attribute__((regparm(n)))
+#else
+#define REGPARM(n)
+#endif
+#else
+#define HOT __attribute__((hot))
+#if defined(__x86_64)
+#define REGPARM(n) __attribute__((hot, regparm(n)))
+#else
+#define REGPARM(n)
+#endif
+#endif
+#else
+#define HOT
+#define REGPARM(n)
+#endif
+
+namespace graphite2 {
+
+// Forward declarations
+class Segment;
+class Slot;
+class SlotMap;
+
+
+namespace vm
+{
+
+
+typedef void * instr;
+typedef Slot * slotref;
+
+enum {VARARGS = 0xff, MAX_NAME_LEN=32};
+
+enum opcode {
+ NOP = 0,
+
+ PUSH_BYTE, PUSH_BYTEU, PUSH_SHORT, PUSH_SHORTU, PUSH_LONG,
+
+ ADD, SUB, MUL, DIV,
+ MIN_, MAX_,
+ NEG,
+ TRUNC8, TRUNC16,
+
+ COND,
+
+ AND, OR, NOT,
+ EQUAL, NOT_EQ,
+ LESS, GTR, LESS_EQ, GTR_EQ,
+
+ NEXT, NEXT_N, COPY_NEXT,
+ PUT_GLYPH_8BIT_OBS, PUT_SUBS_8BIT_OBS, PUT_COPY,
+ INSERT, DELETE,
+ ASSOC,
+ CNTXT_ITEM,
+
+ ATTR_SET, ATTR_ADD, ATTR_SUB,
+ ATTR_SET_SLOT,
+ IATTR_SET_SLOT,
+ PUSH_SLOT_ATTR, PUSH_GLYPH_ATTR_OBS,
+ PUSH_GLYPH_METRIC, PUSH_FEAT,
+ PUSH_ATT_TO_GATTR_OBS, PUSH_ATT_TO_GLYPH_METRIC,
+ PUSH_ISLOT_ATTR,
+
+ PUSH_IGLYPH_ATTR, // not implemented
+
+ POP_RET, RET_ZERO, RET_TRUE,
+ IATTR_SET, IATTR_ADD, IATTR_SUB,
+ PUSH_PROC_STATE, PUSH_VERSION,
+ PUT_SUBS, PUT_SUBS2, PUT_SUBS3,
+ PUT_GLYPH, PUSH_GLYPH_ATTR, PUSH_ATT_TO_GLYPH_ATTR,
+ BITOR, BITAND, BITNOT,
+ BITSET, SET_FEAT,
+ MAX_OPCODE,
+ // private opcodes for internal use only, comes after all other on disk opcodes
+ TEMP_COPY = MAX_OPCODE
+};
+
+struct opcode_t
+{
+ instr impl[2];
+ uint8 param_sz;
+ char name[MAX_NAME_LEN];
+};
+
+
+class Machine
+{
+public:
+ typedef int32 stack_t;
+ static size_t const STACK_ORDER = 10,
+ STACK_MAX = 1 << STACK_ORDER,
+ STACK_GUARD = 2;
+
+ class Code;
+
+ enum status_t {
+ finished = 0,
+ stack_underflow,
+ stack_not_empty,
+ stack_overflow,
+ slot_offset_out_bounds,
+ died_early
+ };
+
+ Machine(SlotMap &) throw();
+ static const opcode_t * getOpcodeTable() throw();
+
+ CLASS_NEW_DELETE;
+
+ SlotMap & slotMap() const throw();
+ status_t status() const throw();
+// operator bool () const throw();
+
+private:
+ void check_final_stack(const stack_t * const sp);
+ stack_t run(const instr * program, const byte * data,
+ slotref * & map) HOT;
+
+ SlotMap & _map;
+ stack_t _stack[STACK_MAX + 2*STACK_GUARD];
+ status_t _status;
+};
+
+inline Machine::Machine(SlotMap & map) throw()
+: _map(map), _status(finished)
+{
+ // Initialise stack guard +1 entries as the stack pointer points to the
+ // current top of stack, hence the first push will never write entry 0.
+ // Initialising the guard space like this is unnecessary and is only
+ // done to keep valgrind happy during fuzz testing. Hopefully loop
+ // unrolling will flatten this.
+ for (size_t n = STACK_GUARD + 1; n; --n) _stack[n-1] = 0;
+}
+
+inline SlotMap& Machine::slotMap() const throw()
+{
+ return _map;
+}
+
+inline Machine::status_t Machine::status() const throw()
+{
+ return _status;
+}
+
+inline void Machine::check_final_stack(const stack_t * const sp)
+{
+ stack_t const * const base = _stack + STACK_GUARD,
+ * const limit = base + STACK_MAX;
+ if (sp < base) _status = stack_underflow; // This should be impossible now.
+ else if (sp >= limit) _status = stack_overflow; // So should this.
+ else if (sp != base) _status = stack_not_empty;
+}
+
+} // namespace vm
+} // namespace graphite2
+
+
+
diff --git a/gfx/graphite2/src/inc/Main.h b/gfx/graphite2/src/inc/Main.h
new file mode 100644
index 000000000..deeffcccd
--- /dev/null
+++ b/gfx/graphite2/src/inc/Main.h
@@ -0,0 +1,146 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <cstdlib>
+#include "graphite2/Types.h"
+
+#ifdef GRAPHITE2_CUSTOM_HEADER
+#include GRAPHITE2_CUSTOM_HEADER
+#endif
+
+namespace graphite2 {
+
+typedef gr_uint8 uint8;
+typedef gr_uint8 byte;
+typedef gr_uint16 uint16;
+typedef gr_uint32 uint32;
+typedef gr_int8 int8;
+typedef gr_int16 int16;
+typedef gr_int32 int32;
+typedef size_t uintptr;
+
+#ifdef GRAPHITE2_TELEMETRY
+struct telemetry
+{
+ class category;
+
+ static size_t * _category;
+ static void set_category(size_t & t) throw() { _category = &t; }
+ static void stop() throw() { _category = 0; }
+ static void count_bytes(size_t n) throw() { if (_category) *_category += n; }
+
+ size_t misc,
+ silf,
+ glyph,
+ code,
+ states,
+ starts,
+ transitions;
+
+ telemetry() : misc(0), silf(0), glyph(0), code(0), states(0), starts(0), transitions(0) {}
+};
+
+class telemetry::category
+{
+ size_t * _prev;
+public:
+ category(size_t & t) : _prev(_category) { _category = &t; }
+ ~category() { _category = _prev; }
+};
+
+#else
+struct telemetry {};
+#endif
+
+// typesafe wrapper around malloc for simple types
+// use free(pointer) to deallocate
+
+template <typename T> T * gralloc(size_t n)
+{
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::count_bytes(sizeof(T) * n);
+#endif
+ return static_cast<T*>(malloc(sizeof(T) * n));
+}
+
+template <typename T> T * grzeroalloc(size_t n)
+{
+#ifdef GRAPHITE2_TELEMETRY
+ telemetry::count_bytes(sizeof(T) * n);
+#endif
+ return static_cast<T*>(calloc(n, sizeof(T)));
+}
+
+template <typename T>
+inline T min(const T a, const T b)
+{
+ return a < b ? a : b;
+}
+
+template <typename T>
+inline T max(const T a, const T b)
+{
+ return a > b ? a : b;
+}
+
+} // namespace graphite2
+
+#define CLASS_NEW_DELETE \
+ void * operator new (size_t size){ return gralloc<byte>(size);} \
+ void * operator new (size_t, void * p) throw() { return p; } \
+ void * operator new[] (size_t size) {return gralloc<byte>(size);} \
+ void * operator new[] (size_t, void * p) throw() { return p; } \
+ void operator delete (void * p) throw() { free(p);} \
+ void operator delete (void *, void *) throw() {} \
+ void operator delete[] (void * p)throw() { free(p); } \
+ void operator delete[] (void *, void *) throw() {}
+
+#if defined(__GNUC__) || defined(__clang__)
+#define GR_MAYBE_UNUSED __attribute__((unused))
+#else
+#define GR_MAYBE_UNUSED
+#endif
+
+#if defined(__clang__) && __cplusplus >= 201103L
+ /* clang's fallthrough annotations are only available starting in C++11. */
+ #define GR_FALLTHROUGH [[clang::fallthrough]]
+#elif defined(_MSC_VER)
+ /*
+ * MSVC's __fallthrough annotations are checked by /analyze (Code Analysis):
+ * https://msdn.microsoft.com/en-us/library/ms235402%28VS.80%29.aspx
+ */
+ #include <sal.h>
+ #define GR_FALLTHROUGH __fallthrough
+#else
+ #define GR_FALLTHROUGH /* fallthrough */
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(disable: 4800)
+#pragma warning(disable: 4355)
+#endif
diff --git a/gfx/graphite2/src/inc/NameTable.h b/gfx/graphite2/src/inc/NameTable.h
new file mode 100644
index 000000000..0fdbeb4d8
--- /dev/null
+++ b/gfx/graphite2/src/inc/NameTable.h
@@ -0,0 +1,65 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <graphite2/Segment.h>
+#include "inc/TtfTypes.h"
+#include "inc/locale2lcid.h"
+
+namespace graphite2 {
+
+class NameTable
+{
+ NameTable(const NameTable &);
+ NameTable & operator = (const NameTable &);
+
+public:
+ NameTable(const void * data, size_t length, uint16 platfromId=3, uint16 encodingID = 1);
+ ~NameTable() { free(const_cast<TtfUtil::Sfnt::FontNames *>(m_table)); }
+ enum eNameFallback {
+ eNoFallback = 0,
+ eEnUSFallbackOnly = 1,
+ eEnOrAnyFallback = 2
+ };
+ uint16 setPlatformEncoding(uint16 platfromId=3, uint16 encodingID = 1);
+ void * getName(uint16 & languageId, uint16 nameId, gr_encform enc, uint32 & length);
+ uint16 getLanguageId(const char * bcp47Locale);
+
+ CLASS_NEW_DELETE
+private:
+ uint16 m_platformId;
+ uint16 m_encodingId;
+ uint16 m_languageCount;
+ uint16 m_platformOffset; // offset of first NameRecord with for platform 3, encoding 1
+ uint16 m_platformLastRecord;
+ uint16 m_nameDataLength;
+ const TtfUtil::Sfnt::FontNames * m_table;
+ const uint8 * m_nameData;
+ Locale2Lang m_locale2Lang;
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Pass.h b/gfx/graphite2/src/inc/Pass.h
new file mode 100644
index 000000000..074d501d9
--- /dev/null
+++ b/gfx/graphite2/src/inc/Pass.h
@@ -0,0 +1,118 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <cstdlib>
+#include "inc/Code.h"
+
+namespace graphite2 {
+
+class Segment;
+class Face;
+class Silf;
+struct Rule;
+struct RuleEntry;
+struct State;
+class FiniteStateMachine;
+class Error;
+class ShiftCollider;
+class KernCollider;
+class json;
+
+enum passtype;
+
+class Pass
+{
+public:
+ Pass();
+ ~Pass();
+
+ bool readPass(const byte * pPass, size_t pass_length, size_t subtable_base, Face & face,
+ enum passtype pt, uint32 version, Error &e);
+ bool runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const;
+ void init(Silf *silf) { m_silf = silf; }
+ byte collisionLoops() const { return m_numCollRuns; }
+ bool reverseDir() const { return m_isReverseDir; }
+
+ CLASS_NEW_DELETE
+private:
+ void findNDoRule(Slot* & iSlot, vm::Machine &, FiniteStateMachine& fsm) const;
+ int doAction(const vm::Machine::Code* codeptr, Slot * & slot_out, vm::Machine &) const;
+ bool testPassConstraint(vm::Machine & m) const;
+ bool testConstraint(const Rule & r, vm::Machine &) const;
+ bool readRules(const byte * rule_map, const size_t num_entries,
+ const byte *precontext, const uint16 * sort_key,
+ const uint16 * o_constraint, const byte *constraint_data,
+ const uint16 * o_action, const byte * action_data,
+ Face &, enum passtype pt, Error &e);
+ bool readStates(const byte * starts, const byte * states, const byte * o_rule_map, Face &, Error &e);
+ bool readRanges(const byte * ranges, size_t num_ranges, Error &e);
+ uint16 glyphToCol(const uint16 gid) const;
+ bool runFSM(FiniteStateMachine & fsm, Slot * slot) const;
+ void dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const;
+ void dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * os) const;
+ void adjustSlot(int delta, Slot * & slot_out, SlotMap &) const;
+ bool collisionShift(Segment *seg, int dir, json * const dbgout) const;
+ bool collisionKern(Segment *seg, int dir, json * const dbgout) const;
+ bool collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const;
+ bool resolveCollisions(Segment *seg, Slot *slot, Slot *start, ShiftCollider &coll, bool isRev,
+ int dir, bool &moved, bool &hasCol, json * const dbgout) const;
+ float resolveKern(Segment *seg, Slot *slot, Slot *start, int dir,
+ float &ymin, float &ymax, json *const dbgout) const;
+
+ const Silf * m_silf;
+ uint16 * m_cols;
+ Rule * m_rules; // rules
+ RuleEntry * m_ruleMap;
+ uint16 * m_startStates; // prectxt length
+ uint16 * m_transitions;
+ State * m_states;
+ vm::Machine::Code * m_codes;
+ byte * m_progs;
+
+ byte m_numCollRuns;
+ byte m_kernColls;
+ byte m_iMaxLoop;
+ uint16 m_numGlyphs;
+ uint16 m_numRules;
+ uint16 m_numStates;
+ uint16 m_numTransition;
+ uint16 m_numSuccess;
+ uint16 m_successStart;
+ uint16 m_numColumns;
+ byte m_minPreCtxt;
+ byte m_maxPreCtxt;
+ byte m_colThreshold;
+ bool m_isReverseDir;
+ vm::Machine::Code m_cPConstraint;
+
+private: //defensive
+ Pass(const Pass&);
+ Pass& operator=(const Pass&);
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Position.h b/gfx/graphite2/src/inc/Position.h
new file mode 100644
index 000000000..97bc1cdf7
--- /dev/null
+++ b/gfx/graphite2/src/inc/Position.h
@@ -0,0 +1,68 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+namespace graphite2 {
+
+class Position
+{
+public:
+ Position() : x(0), y(0) { }
+ Position(const float inx, const float iny) : x(inx), y(iny) {}
+ Position operator + (const Position& a) const { return Position(x + a.x, y + a.y); }
+ Position operator - (const Position& a) const { return Position(x - a.x, y - a.y); }
+ Position operator * (const float m) const { return Position(x * m, y * m); }
+ Position &operator += (const Position &a) { x += a.x; y += a.y; return *this; }
+ Position &operator *= (const float m) { x *= m; y *= m; return *this; }
+
+ float x;
+ float y;
+};
+
+class Rect
+{
+public :
+ Rect() {}
+ Rect(const Position& botLeft, const Position& topRight): bl(botLeft), tr(topRight) {}
+ Rect widen(const Rect& other) { return Rect(Position(bl.x > other.bl.x ? other.bl.x : bl.x, bl.y > other.bl.y ? other.bl.y : bl.y), Position(tr.x > other.tr.x ? tr.x : other.tr.x, tr.y > other.tr.y ? tr.y : other.tr.y)); }
+ Rect operator + (const Position &a) const { return Rect(Position(bl.x + a.x, bl.y + a.y), Position(tr.x + a.x, tr.y + a.y)); }
+ Rect operator - (const Position &a) const { return Rect(Position(bl.x - a.x, bl.y - a.y), Position(tr.x - a.x, tr.y - a.y)); }
+ Rect operator * (float m) const { return Rect(Position(bl.x, bl.y) * m, Position(tr.x, tr.y) * m); }
+ float width() const { return tr.x - bl.x; }
+ float height() const { return tr.y - bl.y; }
+
+ bool hitTest(Rect &other);
+
+ // returns Position(overlapx, overlapy) where overlap<0 if overlapping else positive)
+ Position overlap(Position &offset, Rect &other, Position &otherOffset);
+ //Position constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox);
+
+ Position bl;
+ Position tr;
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Rule.h b/gfx/graphite2/src/inc/Rule.h
new file mode 100644
index 000000000..5ac21a175
--- /dev/null
+++ b/gfx/graphite2/src/inc/Rule.h
@@ -0,0 +1,305 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+
+#pragma once
+
+#include "inc/Code.h"
+#include "inc/Slot.h"
+
+namespace graphite2 {
+
+struct Rule {
+ const vm::Machine::Code * constraint,
+ * action;
+ unsigned short sort;
+ byte preContext;
+#ifndef NDEBUG
+ uint16 rule_idx;
+#endif
+
+ Rule();
+ ~Rule() {}
+
+ CLASS_NEW_DELETE;
+
+private:
+ Rule(const Rule &);
+ Rule & operator = (const Rule &);
+};
+
+inline
+Rule::Rule()
+: constraint(0),
+ action(0),
+ sort(0),
+ preContext(0)
+{
+#ifndef NDEBUG
+ rule_idx = 0;
+#endif
+}
+
+
+struct RuleEntry
+{
+ const Rule * rule;
+
+ inline
+ bool operator < (const RuleEntry &r) const
+ {
+ const unsigned short lsort = rule->sort, rsort = r.rule->sort;
+ return lsort > rsort || (lsort == rsort && rule < r.rule);
+ }
+
+ inline
+ bool operator == (const RuleEntry &r) const
+ {
+ return rule == r.rule;
+ }
+};
+
+
+struct State
+{
+ const RuleEntry * rules,
+ * rules_end;
+
+ bool empty() const;
+};
+
+inline
+bool State::empty() const
+{
+ return rules_end == rules;
+}
+
+
+class SlotMap
+{
+public:
+ enum {MAX_SLOTS=64};
+ SlotMap(Segment & seg, uint8 direction, int maxSize);
+
+ Slot * * begin();
+ Slot * * end();
+ size_t size() const;
+ unsigned short context() const;
+ void reset(Slot &, unsigned short);
+
+ Slot * const & operator[](int n) const;
+ Slot * & operator [] (int);
+ void pushSlot(Slot * const slot);
+ void collectGarbage(Slot *& aSlot);
+
+ Slot * highwater() { return m_highwater; }
+ void highwater(Slot *s) { m_highwater = s; m_highpassed = false; }
+ bool highpassed() const { return m_highpassed; }
+ void highpassed(bool v) { m_highpassed = v; }
+
+ uint8 dir() const { return m_dir; }
+ int decMax() { return --m_maxSize; }
+
+ Segment & segment;
+private:
+ Slot * m_slot_map[MAX_SLOTS+1];
+ unsigned short m_size;
+ unsigned short m_precontext;
+ Slot * m_highwater;
+ int m_maxSize;
+ uint8 m_dir;
+ bool m_highpassed;
+};
+
+
+class FiniteStateMachine
+{
+public:
+ enum {MAX_RULES=128};
+
+private:
+ class Rules
+ {
+ public:
+ Rules();
+ void clear();
+ const RuleEntry * begin() const;
+ const RuleEntry * end() const;
+ size_t size() const;
+
+ void accumulate_rules(const State &state);
+
+ private:
+ RuleEntry * m_begin,
+ * m_end,
+ m_rules[MAX_RULES*2];
+ };
+
+public:
+ FiniteStateMachine(SlotMap & map, json * logger);
+ void reset(Slot * & slot, const short unsigned int max_pre_ctxt);
+
+ Rules rules;
+ SlotMap & slots;
+ json * const dbgout;
+};
+
+
+inline
+FiniteStateMachine::FiniteStateMachine(SlotMap& map, json * logger)
+: slots(map),
+ dbgout(logger)
+{
+}
+
+inline
+void FiniteStateMachine::reset(Slot * & slot, const short unsigned int max_pre_ctxt)
+{
+ rules.clear();
+ int ctxt = 0;
+ for (; ctxt != max_pre_ctxt && slot->prev(); ++ctxt, slot = slot->prev());
+ slots.reset(*slot, ctxt);
+}
+
+inline
+FiniteStateMachine::Rules::Rules()
+ : m_begin(m_rules), m_end(m_rules)
+{
+}
+
+inline
+void FiniteStateMachine::Rules::clear()
+{
+ m_end = m_begin;
+}
+
+inline
+const RuleEntry * FiniteStateMachine::Rules::begin() const
+{
+ return m_begin;
+}
+
+inline
+const RuleEntry * FiniteStateMachine::Rules::end() const
+{
+ return m_end;
+}
+
+inline
+size_t FiniteStateMachine::Rules::size() const
+{
+ return m_end - m_begin;
+}
+
+inline
+void FiniteStateMachine::Rules::accumulate_rules(const State &state)
+{
+ // Only bother if there are rules in the State object.
+ if (state.empty()) return;
+
+ // Merge the new sorted rules list into the current sorted result set.
+ const RuleEntry * lre = begin(), * rre = state.rules;
+ RuleEntry * out = m_rules + (m_begin == m_rules)*MAX_RULES;
+ const RuleEntry * const lrend = out + MAX_RULES,
+ * const rrend = state.rules_end;
+ m_begin = out;
+ while (lre != end() && out != lrend)
+ {
+ if (*lre < *rre) *out++ = *lre++;
+ else if (*rre < *lre) { *out++ = *rre++; }
+ else { *out++ = *lre++; ++rre; }
+
+ if (rre == rrend)
+ {
+ while (lre != end() && out != lrend) { *out++ = *lre++; }
+ m_end = out;
+ return;
+ }
+ }
+ while (rre != rrend && out != lrend) { *out++ = *rre++; }
+ m_end = out;
+}
+
+inline
+SlotMap::SlotMap(Segment & seg, uint8 direction, int maxSize)
+: segment(seg), m_size(0), m_precontext(0), m_highwater(0),
+ m_maxSize(maxSize), m_dir(direction), m_highpassed(false)
+{
+ m_slot_map[0] = 0;
+}
+
+inline
+Slot * * SlotMap::begin()
+{
+ return &m_slot_map[1]; // allow map to go 1 before slot_map when inserting
+ // at start of segment.
+}
+
+inline
+Slot * * SlotMap::end()
+{
+ return m_slot_map + m_size + 1;
+}
+
+inline
+size_t SlotMap::size() const
+{
+ return m_size;
+}
+
+inline
+short unsigned int SlotMap::context() const
+{
+ return m_precontext;
+}
+
+inline
+void SlotMap::reset(Slot & slot, short unsigned int ctxt)
+{
+ m_size = 0;
+ m_precontext = ctxt;
+ *m_slot_map = slot.prev();
+}
+
+inline
+void SlotMap::pushSlot(Slot*const slot)
+{
+ m_slot_map[++m_size] = slot;
+}
+
+inline
+Slot * const & SlotMap::operator[](int n) const
+{
+ return m_slot_map[n + 1];
+}
+
+inline
+Slot * & SlotMap::operator[](int n)
+{
+ return m_slot_map[n + 1];
+}
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/SegCache.h b/gfx/graphite2/src/inc/SegCache.h
new file mode 100644
index 000000000..b360f7c93
--- /dev/null
+++ b/gfx/graphite2/src/inc/SegCache.h
@@ -0,0 +1,316 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include <graphite2/Segment.h>
+#include "inc/Main.h"
+#include "inc/Slot.h"
+#include "inc/FeatureVal.h"
+#include "inc/SegCacheEntry.h"
+#include "inc/Segment.h"
+
+namespace graphite2 {
+
+class SegCache;
+class SegCacheEntry;
+class SegCacheStore;
+
+/**
+ * SegPrefixEntry stores lists of word/syllable segments
+ * with one list for each word length. The prefix size should be chosen so that
+ * these list sizes stay small since they will be searched iteratively.
+ */
+class SegCachePrefixEntry
+{
+ SegCachePrefixEntry(const SegCachePrefixEntry &);
+ SegCachePrefixEntry & operator = (const SegCachePrefixEntry &);
+
+public:
+ SegCachePrefixEntry() : m_lastPurge(0)
+ {
+ memset(m_entryCounts, 0, sizeof m_entryCounts);
+ memset(m_entryBSIndex, 0, sizeof m_entryBSIndex);
+ memset(m_entries, 0, sizeof m_entries);
+ }
+
+ ~SegCachePrefixEntry()
+ {
+ for (size_t j = 0; j < eMaxSpliceSize; j++)
+ {
+ if (m_entryCounts[j])
+ {
+ assert(m_entries[j]);
+ for (size_t k = 0; k < m_entryCounts[j]; k++)
+ m_entries[j][k].clear();
+
+ free(m_entries[j]);
+ }
+ }
+ }
+ const SegCacheEntry * find(const uint16 * cmapGlyphs, size_t length) const
+ {
+ if (length <= ePrefixLength)
+ {
+ assert(m_entryCounts[length-1] <= 1);
+ if (m_entries[length-1])
+ return m_entries[length-1];
+ return NULL;
+ }
+ SegCacheEntry * entry = NULL;
+ findPosition(cmapGlyphs, length, &entry);
+ return entry;
+ }
+ SegCacheEntry * cache(const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset, unsigned long long totalAccessCount)
+ {
+ size_t listSize = m_entryBSIndex[length-1]? (m_entryBSIndex[length-1] << 1) - 1 : 0;
+ SegCacheEntry * newEntries = NULL;
+ if (m_entryCounts[length-1] + 1u > listSize)
+ {
+ if (m_entryCounts[length-1] == 0)
+ listSize = 1;
+ else
+ {
+ // the problem comes when you get incremental numeric ids in a large doc
+ if (listSize >= eMaxSuffixCount)
+ return NULL;
+ listSize = (m_entryBSIndex[length-1] << 2) - 1;
+ }
+ newEntries = gralloc<SegCacheEntry>(listSize);
+ if (!newEntries)
+ return NULL;
+ }
+
+ uint16 insertPos = 0;
+ if (m_entryCounts[length-1] > 0)
+ {
+ insertPos = findPosition(cmapGlyphs, length, NULL);
+ if (!newEntries)
+ {
+ // same buffer, shift entries up
+ memmove(m_entries[length-1] + insertPos + 1, m_entries[length-1] + insertPos,
+ sizeof(SegCacheEntry) * (m_entryCounts[length-1] - insertPos));
+ }
+ else
+ {
+ memcpy(newEntries, m_entries[length-1], sizeof(SegCacheEntry) * (insertPos));
+ memcpy(newEntries + insertPos + 1, m_entries[length-1] + insertPos,
+ sizeof(SegCacheEntry) * (m_entryCounts[length-1] - insertPos));
+
+ free(m_entries[length-1]);
+ m_entries[length-1] = newEntries;
+ assert (m_entryBSIndex[length-1]);
+ m_entryBSIndex[length-1] <<= 1;
+ }
+ }
+ else
+ {
+ m_entryBSIndex[length-1] = 1;
+ m_entries[length-1] = newEntries;
+ }
+ m_entryCounts[length-1] += 1;
+ new (m_entries[length-1] + insertPos)
+ SegCacheEntry(cmapGlyphs, length, seg, charOffset, totalAccessCount);
+ return m_entries[length-1] + insertPos;
+ }
+ uint32 purge(unsigned long long minAccessCount, unsigned long long oldAccessTime,
+ unsigned long long currentTime);
+ CLASS_NEW_DELETE
+private:
+ uint16 findPosition(const uint16 * cmapGlyphs, uint16 length, SegCacheEntry ** entry) const
+ {
+ int dir = 0;
+ if (m_entryCounts[length-1] == 0)
+ {
+ if (entry) *entry = NULL;
+ return 0;
+ }
+ else if (m_entryCounts[length-1] == 1)
+ {
+ // optimize single entry case
+ for (int i = ePrefixLength; i < length; i++)
+ {
+ if (cmapGlyphs[i] > m_entries[length-1][0].m_unicode[i])
+ {
+ return 1;
+ }
+ else if (cmapGlyphs[i] < m_entries[length-1][0].m_unicode[i])
+ {
+ return 0;
+ }
+ }
+ if (entry)
+ *entry = m_entries[length-1];
+ return 0;
+ }
+ uint16 searchIndex = m_entryBSIndex[length-1] - 1;
+ uint16 stepSize = m_entryBSIndex[length-1] >> 1;
+ size_t prevIndex = searchIndex;
+ do
+ {
+ dir = 0;
+ if (searchIndex >= m_entryCounts[length-1])
+ {
+ dir = -1;
+ searchIndex -= stepSize;
+ stepSize >>= 1;
+ }
+ else
+ {
+ for (int i = ePrefixLength; i < length; i++)
+ {
+ if (cmapGlyphs[i] > m_entries[length-1][searchIndex].m_unicode[i])
+ {
+ dir = 1;
+ searchIndex += stepSize;
+ stepSize >>= 1;
+ break;
+ }
+ else if (cmapGlyphs[i] < m_entries[length-1][searchIndex].m_unicode[i])
+ {
+ dir = -1;
+ searchIndex -= stepSize;
+ stepSize >>= 1;
+ break;
+ }
+ }
+ }
+ if (prevIndex == searchIndex)
+ break;
+ prevIndex = searchIndex;
+ } while (dir != 0);
+ if (entry)
+ {
+ if (dir == 0)
+ *entry = m_entries[length-1] + searchIndex;
+ else
+ *entry = NULL;
+ }
+ else
+ {
+ // if entry is null, then this is for inserting a new value, which
+ // shouldn't already be in the cache
+ assert(dir != 0);
+ if (dir > 0)
+ ++searchIndex;
+ }
+ return searchIndex;
+ }
+ /** m_entries is a null terminated list of entries */
+ uint16 m_entryCounts[eMaxSpliceSize];
+ uint16 m_entryBSIndex[eMaxSpliceSize];
+ SegCacheEntry * m_entries[eMaxSpliceSize];
+ unsigned long long m_lastPurge;
+};
+
+
+#define SEG_CACHE_MIN_INDEX (store->maxCmapGid())
+#define SEG_CACHE_MAX_INDEX (store->maxCmapGid()+1u)
+#define SEG_CACHE_UNSET_INDEX (store->maxCmapGid()+2u)
+
+union SegCachePrefixArray
+{
+ void ** raw;
+ SegCachePrefixArray * array;
+ SegCachePrefixEntry ** prefixEntries;
+ uintptr * range;
+};
+
+class SegCache
+{
+public:
+ SegCache(const SegCacheStore * store, const Features& features);
+ ~SegCache();
+
+ const SegCacheEntry * find(const uint16 * cmapGlyphs, size_t length) const;
+ SegCacheEntry * cache(SegCacheStore * store, const uint16 * cmapGlyphs, size_t length, Segment * seg, size_t charOffset);
+ void purge(SegCacheStore * store);
+
+ long long totalAccessCount() const { return m_totalAccessCount; }
+ size_t segmentCount() const { return m_segmentCount; }
+ const Features & features() const { return m_features; }
+ void clear(SegCacheStore * store);
+
+ CLASS_NEW_DELETE
+private:
+ void freeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level);
+ void purgeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level,
+ unsigned long long minAccessCount, unsigned long long oldAccessTime);
+
+ uint16 m_prefixLength;
+// uint16 m_maxCachedSegLength;
+ size_t m_segmentCount;
+ SegCachePrefixArray m_prefixes;
+ Features m_features;
+ mutable unsigned long long m_totalAccessCount;
+ mutable unsigned long long m_totalMisses;
+ float m_purgeFactor;
+};
+
+inline const SegCacheEntry * SegCache::find(const uint16 * cmapGlyphs, size_t length) const
+{
+ uint16 pos = 0;
+ if (!length || length > eMaxSpliceSize) return NULL;
+ SegCachePrefixArray pEntry = m_prefixes.array[cmapGlyphs[0]];
+ while (++pos < m_prefixLength - 1)
+ {
+ if (!pEntry.raw)
+ {
+ ++m_totalMisses;
+ return NULL;
+ }
+ pEntry = pEntry.array[(pos < length)? cmapGlyphs[pos] : 0];
+ }
+ if (!pEntry.raw)
+ {
+ ++m_totalMisses;
+ return NULL;
+ }
+ SegCachePrefixEntry * prefixEntry = pEntry.prefixEntries[(pos < length)? cmapGlyphs[pos] : 0];
+ if (!prefixEntry)
+ {
+ ++m_totalMisses;
+ return NULL;
+ }
+ const SegCacheEntry * entry = prefixEntry->find(cmapGlyphs, length);
+ if (entry)
+ {
+ ++m_totalAccessCount;
+ entry->accessed(m_totalAccessCount);
+ }
+ else
+ {
+ ++m_totalMisses;
+ }
+ return entry;
+}
+
+} // namespace graphite2
+
+#endif
+
diff --git a/gfx/graphite2/src/inc/SegCacheEntry.h b/gfx/graphite2/src/inc/SegCacheEntry.h
new file mode 100644
index 000000000..9a7d93067
--- /dev/null
+++ b/gfx/graphite2/src/inc/SegCacheEntry.h
@@ -0,0 +1,121 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include "inc/Main.h"
+#include "inc/Slot.h"
+
+namespace graphite2 {
+
+class Segment;
+class Slot;
+class SegCacheEntry;
+class SegCachePrefixEntry;
+
+enum SegCacheParameters {
+ /** number of characters used in initial prefix tree */
+ ePrefixLength = 2,
+ /** Segments more recent than maxSegmentCount() / eAgeFactor are kept */
+ eAgeFactor = 4,
+ /** Segments are purged according to the formular:
+ * accessCount < (totalAccesses)/(ePurgeFactor * maxSegments) */
+ ePurgeFactor = 5,
+ /** Maximum number of Segments to store which have the same
+ * prefix. Needed to prevent unique identifiers flooding the cache */
+ eMaxSuffixCount = 15
+
+};
+
+class SegCacheCharInfo
+{
+public:
+ uint16 m_unicode;
+ uint16 m_before;
+ uint16 m_after;
+};
+
+/**
+ * SegCacheEntry stores the result of running the engine for specific unicode
+ * code points in the typical mid-line situation.
+ */
+class SegCacheEntry
+{
+ // Prevent any implict copying;
+ SegCacheEntry(const SegCacheEntry &);
+ SegCacheEntry & operator = (const SegCacheEntry &);
+
+ friend class SegCachePrefixEntry;
+public:
+ SegCacheEntry() :
+ m_glyphLength(0), m_unicode(NULL), m_glyph(NULL), m_attr(NULL), m_justs(0),
+ m_accessCount(0), m_lastAccess(0)
+ {}
+ SegCacheEntry(const uint16 * cmapGlyphs, size_t length, Segment * seg, size_t charOffset, long long cacheTime);
+ ~SegCacheEntry() { clear(); };
+ void clear();
+ size_t glyphLength() const { return m_glyphLength; }
+ const Slot * first() const { return m_glyph; }
+ const Slot * last() const { return m_glyph + (m_glyphLength - 1); }
+
+ /** Total number of times this entry has been accessed since creation */
+ unsigned long long accessCount() const { return m_accessCount; }
+ /** "time" of last access where "time" is measured in accesses to the cache owning this entry */
+ void accessed(unsigned long long cacheTime) const
+ {
+ m_lastAccess = cacheTime; ++m_accessCount;
+ };
+
+ int compareRank(const SegCacheEntry & entry) const
+ {
+ if (m_accessCount > entry.m_accessCount) return 1;
+ else if (m_accessCount < entry.m_accessCount) return 1;
+ else if (m_lastAccess > entry.m_lastAccess) return 1;
+ else if (m_lastAccess < entry.m_lastAccess) return -1;
+ return 0;
+ }
+ unsigned long long lastAccess() const { return m_lastAccess; };
+
+ CLASS_NEW_DELETE;
+private:
+
+ size_t m_glyphLength;
+ /** glyph ids resulting from cmap mapping from unicode to glyph before substitution
+ * the length of this array is determined by the position in the SegCachePrefixEntry */
+ uint16 * m_unicode;
+ /** slots after shapping and positioning */
+ Slot * m_glyph;
+ int16 * m_attr;
+ byte * m_justs;
+ mutable unsigned long long m_accessCount;
+ mutable unsigned long long m_lastAccess;
+};
+
+} // namespace graphite2
+
+#endif
diff --git a/gfx/graphite2/src/inc/SegCacheStore.h b/gfx/graphite2/src/inc/SegCacheStore.h
new file mode 100644
index 000000000..1e6a6e216
--- /dev/null
+++ b/gfx/graphite2/src/inc/SegCacheStore.h
@@ -0,0 +1,127 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#ifndef GRAPHITE2_NSEGCACHE
+
+#include "inc/Main.h"
+#include "inc/CmapCache.h"
+#include "inc/SegCache.h"
+
+namespace graphite2 {
+
+class SegCache;
+class Face;
+
+class SilfSegCache
+{
+ SilfSegCache(const SilfSegCache &);
+ SilfSegCache & operator = (const SilfSegCache &);
+
+public:
+ SilfSegCache() : m_caches(NULL), m_cacheCount(0) {};
+ ~SilfSegCache()
+ {
+ assert(m_caches == NULL);
+ }
+ void clear(SegCacheStore * cacheStore)
+ {
+ for (size_t i = 0; i < m_cacheCount; i++)
+ {
+ m_caches[i]->clear(cacheStore);
+ delete m_caches[i];
+ }
+ free(m_caches);
+ m_caches = NULL;
+ m_cacheCount = 0;
+ }
+ SegCache * getOrCreate(SegCacheStore * cacheStore, const Features & features)
+ {
+ for (size_t i = 0; i < m_cacheCount; i++)
+ {
+ if (m_caches[i]->features() == features)
+ return m_caches[i];
+ }
+ SegCache ** newData = gralloc<SegCache*>(m_cacheCount+1);
+ if (newData)
+ {
+ if (m_cacheCount > 0)
+ {
+ memcpy(newData, m_caches, sizeof(SegCache*) * m_cacheCount);
+ free(m_caches);
+ }
+ m_caches = newData;
+ m_caches[m_cacheCount] = new SegCache(cacheStore, features);
+ m_cacheCount++;
+ return m_caches[m_cacheCount - 1];
+ }
+ return NULL;
+ }
+ CLASS_NEW_DELETE
+private:
+ SegCache ** m_caches;
+ size_t m_cacheCount;
+};
+
+class SegCacheStore
+{
+ SegCacheStore(const SegCacheStore &);
+ SegCacheStore & operator = (const SegCacheStore &);
+
+public:
+ SegCacheStore(const Face & face, unsigned int numSilf, size_t maxSegments);
+ ~SegCacheStore()
+ {
+ for (size_t i = 0; i < m_numSilf; i++)
+ {
+ m_caches[i].clear(this);
+ }
+ delete [] m_caches;
+ m_caches = NULL;
+ }
+ SegCache * getOrCreate(unsigned int i, const Features & features)
+ {
+ return m_caches[i].getOrCreate(this, features);
+ }
+ bool isSpaceGlyph(uint16 gid) const { return (gid == m_spaceGid) || (gid == m_zwspGid); }
+ uint16 maxCmapGid() const { return m_maxCmapGid; }
+ uint32 maxSegmentCount() const { return m_maxSegments; };
+
+ CLASS_NEW_DELETE
+private:
+ SilfSegCache * m_caches;
+ uint8 m_numSilf;
+ uint32 m_maxSegments;
+ uint16 m_maxCmapGid;
+ uint16 m_spaceGid;
+ uint16 m_zwspGid;
+};
+
+} // namespace graphite2
+
+#endif
+
diff --git a/gfx/graphite2/src/inc/Segment.h b/gfx/graphite2/src/inc/Segment.h
new file mode 100644
index 000000000..bcba1f2a8
--- /dev/null
+++ b/gfx/graphite2/src/inc/Segment.h
@@ -0,0 +1,248 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "inc/Main.h"
+
+#include <cassert>
+
+#include "inc/CharInfo.h"
+#include "inc/Face.h"
+#include "inc/FeatureVal.h"
+#include "inc/GlyphCache.h"
+#include "inc/GlyphFace.h"
+#include "inc/Slot.h"
+#include "inc/Position.h"
+#include "inc/List.h"
+#include "inc/Collider.h"
+
+#define MAX_SEG_GROWTH_FACTOR 64
+
+namespace graphite2 {
+
+typedef Vector<Features> FeatureList;
+typedef Vector<Slot *> SlotRope;
+typedef Vector<int16 *> AttributeRope;
+typedef Vector<SlotJustify *> JustifyRope;
+
+#ifndef GRAPHITE2_NSEGCACHE
+class SegmentScopeState;
+#endif
+class Font;
+class Segment;
+class Silf;
+
+enum SpliceParam {
+/** sub-Segments longer than this are not cached
+ * (in Unicode code points) */
+ eMaxSpliceSize = 96
+};
+
+enum justFlags {
+ gr_justStartInline = 1,
+ gr_justEndInline = 2
+};
+
+class SegmentScopeState
+{
+private:
+ friend class Segment;
+ Slot * realFirstSlot;
+ Slot * slotBeforeScope;
+ Slot * slotAfterScope;
+ Slot * realLastSlot;
+ size_t numGlyphsOutsideScope;
+};
+
+class Segment
+{
+ // Prevent copying of any kind.
+ Segment(const Segment&);
+ Segment& operator=(const Segment&);
+
+public:
+
+ enum {
+ SEG_INITCOLLISIONS = 1,
+ SEG_HASCOLLISIONS = 2
+ };
+
+ unsigned int slotCount() const { return m_numGlyphs; } //one slot per glyph
+ void extendLength(int num) { m_numGlyphs += num; }
+ Position advance() const { return m_advance; }
+ bool runGraphite() { if (m_silf) return m_face->runGraphite(this, m_silf); else return true;};
+ void chooseSilf(uint32 script) { m_silf = m_face->chooseSilf(script); }
+ const Silf *silf() const { return m_silf; }
+ unsigned int charInfoCount() const { return m_numCharinfo; }
+ const CharInfo *charinfo(unsigned int index) const { return index < m_numCharinfo ? m_charinfo + index : NULL; }
+ CharInfo *charinfo(unsigned int index) { return index < m_numCharinfo ? m_charinfo + index : NULL; }
+
+ Segment(unsigned int numchars, const Face* face, uint32 script, int dir);
+ ~Segment();
+#ifndef GRAPHITE2_NSEGCACHE
+ SegmentScopeState setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength);
+ void removeScope(SegmentScopeState & state);
+ void append(const Segment &other);
+ void splice(size_t offset, size_t length, Slot * const startSlot,
+ Slot * endSlot, const Slot * srcSlot,
+ const size_t numGlyphs);
+#endif
+ uint8 flags() const { return m_flags; }
+ void flags(uint8 f) { m_flags = f; }
+ Slot *first() { return m_first; }
+ void first(Slot *p) { m_first = p; }
+ Slot *last() { return m_last; }
+ void last(Slot *p) { m_last = p; }
+ void appendSlot(int i, int cid, int gid, int fid, size_t coffset);
+ Slot *newSlot();
+ void freeSlot(Slot *);
+ SlotJustify *newJustify();
+ void freeJustify(SlotJustify *aJustify);
+ Position positionSlots(const Font *font=0, Slot *first=0, Slot *last=0, bool isRtl = false, bool isFinal = true);
+ void associateChars(int offset, int num);
+ void linkClusters(Slot *first, Slot *last);
+ uint16 getClassGlyph(uint16 cid, uint16 offset) const { return m_silf->getClassGlyph(cid, offset); }
+ uint16 findClassIndex(uint16 cid, uint16 gid) const { return m_silf->findClassIndex(cid, gid); }
+ int addFeatures(const Features& feats) { m_feats.push_back(feats); return m_feats.size() - 1; }
+ uint32 getFeature(int index, uint8 findex) const { const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex); if (!pFR) return 0; else return pFR->getFeatureVal(m_feats[index]); }
+ void setFeature(int index, uint8 findex, uint32 val) {
+ const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex);
+ if (pFR)
+ {
+ if (val > pFR->maxVal()) val = pFR->maxVal();
+ pFR->applyValToFeature(val, m_feats[index]);
+ } }
+ int8 dir() const { return m_dir; }
+ void dir(int8 val) { m_dir = val; }
+ bool currdir() const { return ((m_dir >> 6) ^ m_dir) & 1; }
+ unsigned int passBits() const { return m_passBits; }
+ void mergePassBits(const unsigned int val) { m_passBits &= val; }
+ int16 glyphAttr(uint16 gid, uint16 gattr) const { const GlyphFace * p = m_face->glyphs().glyphSafe(gid); return p ? p->attrs()[gattr] : 0; }
+ int32 getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const;
+ float glyphAdvance(uint16 gid) const { return m_face->glyphs().glyph(gid)->theAdvance().x; }
+ const Rect &theGlyphBBoxTemporary(uint16 gid) const { return m_face->glyphs().glyph(gid)->theBBox(); } //warning value may become invalid when another glyph is accessed
+ Slot *findRoot(Slot *is) const { return is->attachedTo() ? findRoot(is->attachedTo()) : is; }
+ int numAttrs() const { return m_silf->numUser(); }
+ int defaultOriginal() const { return m_defaultOriginal; }
+ const Face * getFace() const { return m_face; }
+ const Features & getFeatures(unsigned int /*charIndex*/) { assert(m_feats.size() == 1); return m_feats[0]; }
+ void bidiPass(int paradir, uint8 aMirror);
+ int8 getSlotBidiClass(Slot *s) const;
+ void doMirror(uint16 aMirror);
+ Slot *addLineEnd(Slot *nSlot);
+ void delLineEnd(Slot *s);
+ bool hasJustification() const { return m_justifies.size() != 0; }
+ void reverseSlots();
+
+ bool isWhitespace(const int cid) const;
+ bool hasCollisionInfo() const { return (m_flags & SEG_HASCOLLISIONS) && m_collisions; }
+ SlotCollision *collisionInfo(const Slot *s) const { return m_collisions ? m_collisions + s->index() : 0; }
+ CLASS_NEW_DELETE
+
+public: //only used by: GrSegment* makeAndInitialize(const GrFont *font, const GrFace *face, uint32 script, const FeaturesHandle& pFeats/*must not be IsNull*/, encform enc, const void* pStart, size_t nChars, int dir);
+ bool read_text(const Face *face, const Features* pFeats/*must not be NULL*/, gr_encform enc, const void*pStart, size_t nChars);
+ void finalise(const Font *font, bool reverse=false);
+ float justify(Slot *pSlot, const Font *font, float width, enum justFlags flags, Slot *pFirst, Slot *pLast);
+ bool initCollisions();
+
+private:
+ Position m_advance; // whole segment advance
+ SlotRope m_slots; // Vector of slot buffers
+ AttributeRope m_userAttrs; // Vector of userAttrs buffers
+ JustifyRope m_justifies; // Slot justification info buffers
+ FeatureList m_feats; // feature settings referenced by charinfos in this segment
+ Slot * m_freeSlots; // linked list of free slots
+ SlotJustify * m_freeJustifies; // Slot justification blocks free list
+ CharInfo * m_charinfo; // character info, one per input character
+ SlotCollision * m_collisions;
+ const Face * m_face; // GrFace
+ const Silf * m_silf;
+ Slot * m_first; // first slot in segment
+ Slot * m_last; // last slot in segment
+ unsigned int m_bufSize, // how big a buffer to create when need more slots
+ m_numGlyphs,
+ m_numCharinfo, // size of the array and number of input characters
+ m_passBits; // if bit set then skip pass
+ int m_defaultOriginal; // number of whitespace chars in the string
+ int8 m_dir;
+ uint8 m_flags; // General purpose flags
+};
+
+inline
+int8 Segment::getSlotBidiClass(Slot *s) const
+{
+ int8 res = s->getBidiClass();
+ if (res != -1) return res;
+ res = int8(glyphAttr(s->gid(), m_silf->aBidi()));
+ s->setBidiClass(res);
+ return res;
+}
+
+inline
+void Segment::finalise(const Font *font, bool reverse)
+{
+ if (!m_first) return;
+
+ m_advance = positionSlots(font, m_first, m_last, m_silf->dir(), true);
+ //associateChars(0, m_numCharinfo);
+ if (reverse && currdir() != (m_dir & 1))
+ reverseSlots();
+ linkClusters(m_first, m_last);
+}
+
+inline
+int32 Segment::getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const {
+ if (attrLevel > 0)
+ {
+ Slot *is = findRoot(iSlot);
+ return is->clusterMetric(this, metric, attrLevel, rtl);
+ }
+ else
+ return m_face->getGlyphMetric(iSlot->gid(), metric);
+}
+
+inline
+bool Segment::isWhitespace(const int cid) const
+{
+ return ((cid >= 0x0009) * (cid <= 0x000D)
+ + (cid == 0x0020)
+ + (cid == 0x0085)
+ + (cid == 0x00A0)
+ + (cid == 0x1680)
+ + (cid == 0x180E)
+ + (cid >= 0x2000) * (cid <= 0x200A)
+ + (cid == 0x2028)
+ + (cid == 0x2029)
+ + (cid == 0x202F)
+ + (cid == 0x205F)
+ + (cid == 0x3000)) != 0;
+}
+
+} // namespace graphite2
+
+struct gr_segment : public graphite2::Segment {};
+
diff --git a/gfx/graphite2/src/inc/Shrinker.h b/gfx/graphite2/src/inc/Shrinker.h
new file mode 100644
index 000000000..e4db2f135
--- /dev/null
+++ b/gfx/graphite2/src/inc/Shrinker.h
@@ -0,0 +1,119 @@
+/* Copyright (c) 2012, Siyuan Fu <fusiyuan2010@gmail.com>
+ Copyright (c) 2015, SIL International
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ 3. Neither the name of the copyright holder nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#pragma once
+
+#include <cassert>
+#include <cstddef>
+#include <cstring>
+
+#include <iterator>
+
+//the code from LZ4
+#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__)
+# define expect(expr,value) (__builtin_expect ((expr),(value)) )
+#else
+# define expect(expr,value) (expr)
+#endif
+#define likely(expr) expect((expr) != 0, 1)
+#define unlikely(expr) expect((expr) != 0, 0)
+////////////////////
+
+
+namespace
+{
+
+#if defined(_MSC_VER)
+typedef unsigned __int8 u8;
+typedef unsigned __int16 u16;
+typedef unsigned __int32 u32;
+typedef unsigned __int64 u64;
+#else
+#include <stdint.h>
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+#endif
+
+ptrdiff_t const MINMATCH = 4;
+
+template<int S>
+inline
+void unaligned_copy(void * d, void const * s) {
+ ::memcpy(d, s, S);
+}
+
+inline
+u8 * memcpy_nooverlap(u8 * d, u8 const * s, size_t n) {
+ size_t const WS = sizeof(unsigned long);
+ u8 const * e = s + n;
+ do
+ {
+ unaligned_copy<WS>(d, s);
+ d += WS;
+ s += WS;
+ }
+ while (s < e);
+ d-=(s-e);
+
+ return d;
+}
+
+
+inline
+u8 * memcpy_nooverlap_surpass(u8 * d, u8 const * s, size_t n) {
+ size_t const WS = sizeof(unsigned long);
+ size_t wn = n/WS;
+ while (wn--)
+ {
+ unaligned_copy<WS>(d, s);
+ d += WS;
+ s += WS;
+ }
+ n &= WS-1;
+ while (n--) {*d++ = *s++; }
+
+ return d;
+}
+
+
+inline
+u8 * memcpy_(u8 * d, u8 const * s, size_t n) {
+ if (likely(d>s+sizeof(unsigned long)))
+ return memcpy_nooverlap(d,s,n);
+ else while (n--) *d++ = *s++;
+ return d;
+}
+
+} // end of anonymous namespace
+
+
diff --git a/gfx/graphite2/src/inc/Silf.h b/gfx/graphite2/src/inc/Silf.h
new file mode 100644
index 000000000..8e49f70c9
--- /dev/null
+++ b/gfx/graphite2/src/inc/Silf.h
@@ -0,0 +1,128 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "graphite2/Font.h"
+#include "inc/Main.h"
+#include "inc/Pass.h"
+
+namespace graphite2 {
+
+class Face;
+class Segment;
+class FeatureVal;
+class VMScratch;
+class Error;
+
+class Pseudo
+{
+public:
+ uint32 uid;
+ uint32 gid;
+ CLASS_NEW_DELETE;
+};
+
+class Justinfo
+{
+public:
+ Justinfo(uint8 stretch, uint8 shrink, uint8 step, uint8 weight) :
+ m_astretch(stretch), m_ashrink(shrink), m_astep(step),
+ m_aweight(weight) {};
+ uint8 attrStretch() const { return m_astretch; }
+ uint8 attrShrink() const { return m_ashrink; }
+ uint8 attrStep() const { return m_astep; }
+ uint8 attrWeight() const { return m_aweight; }
+
+private:
+ uint8 m_astretch;
+ uint8 m_ashrink;
+ uint8 m_astep;
+ uint8 m_aweight;
+};
+
+class Silf
+{
+ // Prevent copying
+ Silf(const Silf&);
+ Silf& operator=(const Silf&);
+
+public:
+ Silf() throw();
+ ~Silf() throw();
+
+ bool readGraphite(const byte * const pSilf, size_t lSilf, Face &face, uint32 version);
+ bool runGraphite(Segment *seg, uint8 firstPass=0, uint8 lastPass=0, int dobidi = 0) const;
+ uint16 findClassIndex(uint16 cid, uint16 gid) const;
+ uint16 getClassGlyph(uint16 cid, unsigned int index) const;
+ uint16 findPseudo(uint32 uid) const;
+ uint8 numUser() const { return m_aUser; }
+ uint8 aPseudo() const { return m_aPseudo; }
+ uint8 aBreak() const { return m_aBreak; }
+ uint8 aMirror() const {return m_aMirror; }
+ uint8 aPassBits() const { return m_aPassBits; }
+ uint8 aBidi() const { return m_aBidi; }
+ uint8 aCollision() const { return m_aCollision; }
+ uint8 substitutionPass() const { return m_sPass; }
+ uint8 positionPass() const { return m_pPass; }
+ uint8 justificationPass() const { return m_jPass; }
+ uint8 bidiPass() const { return m_bPass; }
+ uint8 numPasses() const { return m_numPasses; }
+ uint8 maxCompPerLig() const { return m_iMaxComp; }
+ uint16 numClasses() const { return m_nClass; }
+ byte flags() const { return m_flags; }
+ byte dir() const { return m_dir; }
+ uint8 numJustLevels() const { return m_numJusts; }
+ Justinfo *justAttrs() const { return m_justs; }
+ uint16 endLineGlyphid() const { return m_gEndLine; }
+ const gr_faceinfo *silfInfo() const { return &m_silfinfo; }
+
+ CLASS_NEW_DELETE;
+
+private:
+ size_t readClassMap(const byte *p, size_t data_len, uint32 version, Error &e);
+ template<typename T> inline uint32 readClassOffsets(const byte *&p, size_t data_len, Error &e);
+
+ Pass * m_passes;
+ Pseudo * m_pseudos;
+ uint32 * m_classOffsets;
+ uint16 * m_classData;
+ Justinfo * m_justs;
+ uint8 m_numPasses;
+ uint8 m_numJusts;
+ uint8 m_sPass, m_pPass, m_jPass, m_bPass,
+ m_flags, m_dir;
+
+ uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits,
+ m_iMaxComp, m_aCollision;
+ uint16 m_aLig, m_numPseudo, m_nClass, m_nLinear,
+ m_gEndLine;
+ gr_faceinfo m_silfinfo;
+
+ void releaseBuffers() throw();
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/Slot.h b/gfx/graphite2/src/inc/Slot.h
new file mode 100644
index 000000000..daa112447
--- /dev/null
+++ b/gfx/graphite2/src/inc/Slot.h
@@ -0,0 +1,172 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "graphite2/Types.h"
+#include "graphite2/Segment.h"
+#include "inc/Main.h"
+#include "inc/Font.h"
+#include "inc/Position.h"
+
+namespace graphite2 {
+
+typedef gr_attrCode attrCode;
+
+class GlyphFace;
+class SegCacheEntry;
+class Segment;
+
+struct SlotJustify
+{
+ static const int NUMJUSTPARAMS = 5;
+
+ SlotJustify(const SlotJustify &);
+ SlotJustify & operator = (const SlotJustify &);
+
+public:
+ static size_t size_of(size_t levels) { return sizeof(SlotJustify) + ((levels > 1 ? levels : 1)*NUMJUSTPARAMS - 1)*sizeof(int16); }
+
+ void LoadSlot(const Slot *s, const Segment *seg);
+
+ SlotJustify *next;
+ int16 values[1];
+};
+
+class Slot
+{
+ enum Flag
+ {
+ DELETED = 1,
+ INSERTED = 2,
+ COPIED = 4,
+ POSITIONED = 8,
+ ATTACHED = 16
+ };
+
+public:
+ struct iterator;
+
+ unsigned short gid() const { return m_glyphid; }
+ Position origin() const { return m_position; }
+ float advance() const { return m_advance.x; }
+ void advance(Position &val) { m_advance = val; }
+ Position advancePos() const { return m_advance; }
+ int before() const { return m_before; }
+ int after() const { return m_after; }
+ uint32 index() const { return m_index; }
+ void index(uint32 val) { m_index = val; }
+
+ Slot(int16 *m_userAttr = NULL);
+ void set(const Slot & slot, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars);
+ Slot *next() const { return m_next; }
+ void next(Slot *s) { m_next = s; }
+ Slot *prev() const { return m_prev; }
+ void prev(Slot *s) { m_prev = s; }
+ uint16 glyph() const { return m_realglyphid ? m_realglyphid : m_glyphid; }
+ void setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph = NULL);
+ void setRealGid(uint16 realGid) { m_realglyphid = realGid; }
+ void adjKern(const Position &pos) { m_shift = m_shift + pos; m_advance = m_advance + pos; }
+ void origin(const Position &pos) { m_position = pos + m_shift; }
+ void originate(int ind) { m_original = ind; }
+ int original() const { return m_original; }
+ void before(int ind) { m_before = ind; }
+ void after(int ind) { m_after = ind; }
+ bool isBase() const { return (!m_parent); }
+ void update(int numSlots, int numCharInfo, Position &relpos);
+ Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth = 0);
+ bool isDeleted() const { return (m_flags & DELETED) ? true : false; }
+ void markDeleted(bool state) { if (state) m_flags |= DELETED; else m_flags &= ~DELETED; }
+ bool isCopied() const { return (m_flags & COPIED) ? true : false; }
+ void markCopied(bool state) { if (state) m_flags |= COPIED; else m_flags &= ~COPIED; }
+ bool isPositioned() const { return (m_flags & POSITIONED) ? true : false; }
+ void markPositioned(bool state) { if (state) m_flags |= POSITIONED; else m_flags &= ~POSITIONED; }
+ bool isInsertBefore() const { return !(m_flags & INSERTED); }
+ uint8 getBidiLevel() const { return m_bidiLevel; }
+ void setBidiLevel(uint8 level) { m_bidiLevel = level; }
+ int8 getBidiClass(const Segment *seg);
+ int8 getBidiClass() const { return m_bidiCls; }
+ void setBidiClass(int8 cls) { m_bidiCls = cls; }
+ int16 *userAttrs() const { return m_userAttr; }
+ void userAttrs(int16 *p) { m_userAttr = p; }
+ void markInsertBefore(bool state) { if (!state) m_flags |= INSERTED; else m_flags &= ~INSERTED; }
+ void setAttr(Segment* seg, attrCode ind, uint8 subindex, int16 val, const SlotMap & map);
+ int getAttr(const Segment *seg, attrCode ind, uint8 subindex) const;
+ int getJustify(const Segment *seg, uint8 level, uint8 subindex) const;
+ void setJustify(Segment *seg, uint8 level, uint8 subindex, int16 value);
+ bool isLocalJustify() const { return m_justs != NULL; };
+ void attachTo(Slot *ap) { m_parent = ap; }
+ Slot *attachedTo() const { return m_parent; }
+ Position attachOffset() const { return m_attach - m_with; }
+ Slot* firstChild() const { return m_child; }
+ void firstChild(Slot *ap) { m_child = ap; }
+ bool child(Slot *ap);
+ Slot* nextSibling() const { return m_sibling; }
+ void nextSibling(Slot *ap) { m_sibling = ap; }
+ bool sibling(Slot *ap);
+ bool removeChild(Slot *ap);
+ int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel, bool rtl);
+ void positionShift(Position a) { m_position += a; }
+ void floodShift(Position adj, int depth = 0);
+ float just() const { return m_just; }
+ void just(float j) { m_just = j; }
+ Slot *nextInCluster(const Slot *s) const;
+ bool isChildOf(const Slot *base) const;
+
+ CLASS_NEW_DELETE
+
+private:
+ Slot *m_next; // linked list of slots
+ Slot *m_prev;
+ unsigned short m_glyphid; // glyph id
+ uint16 m_realglyphid;
+ uint32 m_original; // charinfo that originated this slot (e.g. for feature values)
+ uint32 m_before; // charinfo index of before association
+ uint32 m_after; // charinfo index of after association
+ uint32 m_index; // slot index given to this slot during finalising
+ Slot *m_parent; // index to parent we are attached to
+ Slot *m_child; // index to first child slot that attaches to us
+ Slot *m_sibling; // index to next child that attaches to our parent
+ Position m_position; // absolute position of glyph
+ Position m_shift; // .shift slot attribute
+ Position m_advance; // .advance slot attribute
+ Position m_attach; // attachment point on us
+ Position m_with; // attachment point position on parent
+ float m_just; // Justification inserted space
+ uint8 m_flags; // holds bit flags
+ byte m_attLevel; // attachment level
+ int8 m_bidiCls; // bidirectional class
+ byte m_bidiLevel; // bidirectional level
+ int16 *m_userAttr; // pointer to user attributes
+ SlotJustify *m_justs; // pointer to justification parameters
+
+ friend class SegCacheEntry;
+ friend class Segment;
+};
+
+} // namespace graphite2
+
+struct gr_slot : public graphite2::Slot {};
diff --git a/gfx/graphite2/src/inc/Sparse.h b/gfx/graphite2/src/inc/Sparse.h
new file mode 100644
index 000000000..4a8e3fa7d
--- /dev/null
+++ b/gfx/graphite2/src/inc/Sparse.h
@@ -0,0 +1,171 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include <iterator>
+#include <utility>
+
+#include "inc/Main.h"
+
+namespace graphite2 {
+
+
+// A read-only packed fast sparse array of uint16 with uint16 keys.
+// Like most container classes this has capacity and size properties and these
+// refer to the number of stored entries and the number of addressable entries
+// as normal. However due the sparse nature the capacity is always <= than the
+// size.
+class sparse
+{
+public:
+ typedef uint16 key_type;
+ typedef uint16 mapped_type;
+ typedef std::pair<const key_type, mapped_type> value_type;
+
+private:
+ typedef unsigned long mask_t;
+
+ static const unsigned char SIZEOF_CHUNK = (sizeof(mask_t) - sizeof(key_type))*8;
+
+ struct chunk
+ {
+ mask_t mask:SIZEOF_CHUNK;
+ key_type offset;
+ };
+
+ static const chunk empty_chunk;
+ sparse(const sparse &);
+ sparse & operator = (const sparse &);
+
+public:
+ template<typename I>
+ sparse(I first, const I last);
+ sparse() throw();
+ ~sparse() throw();
+
+ operator bool () const throw();
+ mapped_type operator [] (const key_type k) const throw();
+
+ size_t capacity() const throw();
+ size_t size() const throw();
+
+ size_t _sizeof() const throw();
+
+ CLASS_NEW_DELETE;
+
+private:
+ union {
+ chunk * map;
+ mapped_type * values;
+ } m_array;
+ key_type m_nchunks;
+};
+
+
+inline
+sparse::sparse() throw() : m_nchunks(0)
+{
+ m_array.map = const_cast<graphite2::sparse::chunk *>(&empty_chunk);
+}
+
+
+template <typename I>
+sparse::sparse(I attr, const I last)
+: m_nchunks(0)
+{
+ m_array.map = 0;
+
+ // Find the maximum extent of the key space.
+ size_t n_values=0;
+ long lastkey = -1;
+ for (I i = attr; i != last; ++i, ++n_values)
+ {
+ const typename std::iterator_traits<I>::value_type v = *i;
+ if (v.second == 0) { --n_values; continue; }
+ if (v.first <= lastkey) { m_nchunks = 0; return; }
+
+ lastkey = v.first;
+ const key_type k = v.first / SIZEOF_CHUNK;
+ if (k >= m_nchunks) m_nchunks = k+1;
+ }
+ if (m_nchunks == 0)
+ {
+ m_array.map=const_cast<graphite2::sparse::chunk *>(&empty_chunk);
+ return;
+ }
+
+ m_array.values = grzeroalloc<mapped_type>((m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1)
+ / sizeof(mapped_type)
+ + n_values);
+
+ if (m_array.values == 0)
+ {
+ free(m_array.values); m_array.map=0;
+ return;
+ }
+
+ // coverity[forward_null : FALSE] Since m_array is union and m_array.values is not NULL
+ chunk * ci = m_array.map;
+ ci->offset = (m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1)/sizeof(mapped_type);
+ mapped_type * vi = m_array.values + ci->offset;
+ for (; attr != last; ++attr, ++vi)
+ {
+ const typename std::iterator_traits<I>::value_type v = *attr;
+ if (v.second == 0) { --vi; continue; }
+
+ chunk * const ci_ = m_array.map + v.first/SIZEOF_CHUNK;
+
+ if (ci != ci_)
+ {
+ ci = ci_;
+ ci->offset = vi - m_array.values;
+ }
+
+ ci->mask |= 1UL << (SIZEOF_CHUNK - 1 - (v.first % SIZEOF_CHUNK));
+ *vi = v.second;
+ }
+}
+
+
+inline
+sparse::operator bool () const throw()
+{
+ return m_array.map != 0;
+}
+
+inline
+size_t sparse::size() const throw()
+{
+ return m_nchunks*SIZEOF_CHUNK;
+}
+
+inline
+size_t sparse::_sizeof() const throw()
+{
+ return sizeof(sparse) + capacity()*sizeof(mapped_type) + m_nchunks*sizeof(chunk);
+}
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/TtfTypes.h b/gfx/graphite2/src/inc/TtfTypes.h
new file mode 100644
index 000000000..ea20e5775
--- /dev/null
+++ b/gfx/graphite2/src/inc/TtfTypes.h
@@ -0,0 +1,419 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+/*--------------------------------------------------------------------*//*:Ignore this sentence.
+
+File: TtfTypes.h
+Responsibility: Tim Eves
+Last reviewed: Not yet.
+
+Description:
+Provides types required to represent the TTF basic types.
+-------------------------------------------------------------------------------*//*:End Ignore*/
+
+
+//**********************************************************************************************
+// Include files
+//**********************************************************************************************
+namespace graphite2
+{
+namespace TtfUtil
+{
+//**********************************************************************************************
+// Forward declarations
+//**********************************************************************************************
+
+
+//**********************************************************************************************
+// Type declarations
+//**********************************************************************************************
+typedef unsigned char uint8;
+typedef uint8 byte;
+typedef signed char int8;
+typedef unsigned short uint16;
+typedef short int16;
+typedef unsigned int uint32;
+typedef int int32;
+
+typedef int16 short_frac;
+typedef int32 fixed;
+typedef int16 fword;
+typedef uint16 ufword;
+typedef int16 f2dot14;
+typedef uint32 long_date_time[2];
+
+//**********************************************************************************************
+// Constants and enum types
+//**********************************************************************************************/
+enum
+{
+ OneFix = 1<<16
+};
+
+//**********************************************************************************************
+// Table declarations
+//**********************************************************************************************
+namespace Sfnt
+{
+#pragma pack(1) // We need this or the structure members aren't alligned
+ // correctly. Fortunately this form of pragma is supposed
+ // to be recongnised by VS C++ too (at least according to
+ // MSDN).
+
+ struct OffsetSubTable
+ {
+ uint32 scaler_type;
+ uint16 num_tables,
+ search_range,
+ entry_selector,
+ range_shift;
+ struct Entry
+ {
+ uint32 tag,
+ checksum,
+ offset,
+ length;
+ } table_directory[1];
+
+ enum ScalerType
+ {
+ TrueTypeMac = 0x74727565U,
+ TrueTypeWin = 0x00010000U,
+ Type1 = 0x74797031U
+ };
+ };
+
+
+
+
+ struct CharacterCodeMap
+ {
+ uint16 version,
+ num_subtables;
+ struct
+ {
+ uint16 platform_id,
+ platform_specific_id;
+ uint32 offset;
+ } encoding[1];
+ };
+
+ struct CmapSubTable
+ {
+ uint16 format,
+ length,
+ language;
+ };
+
+ struct CmapSubTableFormat4 : CmapSubTable
+ {
+ uint16 seg_count_x2,
+ search_range,
+ entry_selector,
+ range_shift,
+ end_code[1];
+ // There are arrarys after this which need their
+ // start positions calculated since end_code is
+ // seg_count uint16s long.
+ };
+
+ struct CmapSubTableFormat12
+ {
+ fixed format;
+ uint32 length,
+ language,
+ num_groups;
+ struct
+ {
+ uint32 start_char_code,
+ end_char_code,
+ start_glyph_id;
+ } group[1];
+ };
+
+
+
+ struct FontHeader
+ {
+ fixed version,
+ font_revision;
+ uint32 check_sum_adjustment,
+ magic_number;
+ uint16 flags,
+ units_per_em;
+ long_date_time created,
+ modified;
+ fword x_min,
+ y_min,
+ x_max,
+ y_max;
+ uint16 mac_style,
+ lowest_rec_ppem;
+ int16 font_direction_hint,
+ index_to_loc_format,
+ glyph_data_format;
+ enum
+ {
+ MagicNumber = 0x5F0F3CF5,
+ GlypDataFormat = 0
+ };
+ enum {ShortIndexLocFormat, LongIndexLocFormat};
+ };
+
+
+
+
+ struct PostScriptGlyphName
+ {
+ fixed format,
+ italic_angle;
+ fword underline_position,
+ underline_thickness;
+ uint32 is_fixed_pitch,
+ min_mem_type42,
+ max_mem_type42,
+ min_mem_type1,
+ max_mem_type1;
+ enum
+ {
+ Format1 = 0x10000,
+ Format2 = 0x20000,
+ Format25 = 0x28000,
+ Format3 = 0x30000,
+ Format4 = 0x40000
+ };
+ };
+
+ struct PostScriptGlyphName2 : PostScriptGlyphName
+ {
+ uint16 number_of_glyphs,
+ glyph_name_index[1];
+ };
+
+ struct PostScriptGlyphName25 : PostScriptGlyphName
+ {
+ uint16 number_of_glyphs;
+ int8 offset[1];
+ };
+
+ struct PostScriptGlyphName3 : PostScriptGlyphName {};
+
+ struct PostScriptGlyphName4 : PostScriptGlyphName
+ {
+ uint16 glyph_to_char_map[1];
+ };
+
+
+ struct HorizontalHeader
+ {
+ fixed version;
+ fword ascent,
+ descent,
+ line_gap;
+ ufword advance_width_max;
+ fword min_left_side_bearing,
+ max_left_side_bearing,
+ x_max_element;
+ int16 caret_slope_rise,
+ caret_slope_run;
+ fword caret_offset;
+ int16 reserved[4],
+ metric_data_format;
+ uint16 num_long_hor_metrics;
+ };
+
+ struct MaximumProfile
+ {
+ fixed version;
+ uint16 num_glyphs,
+ max_points,
+ max_contours,
+ max_component_points,
+ max_component_contours,
+ max_zones,
+ max_twilight_points,
+ max_storage,
+ max_function_defs,
+ max_instruction_defs,
+ max_stack_elements,
+ max_size_of_instructions,
+ max_component_elements,
+ max_component_depth;
+ };
+
+
+ typedef byte Panose[10];
+
+ struct Compatibility0
+ {
+ uint16 version;
+ int16 x_avg_char_width;
+ uint16 weight_class,
+ width_class;
+ int16 fs_type,
+ y_subscript_x_size,
+ y_subscript_y_size,
+ y_subscript_x_offset,
+ y_subscript_y_offset,
+ y_superscript_x_size,
+ y_superscript_y_size,
+ y_superscript_x_offset,
+ y_superscript_y_offset,
+ y_strikeout_size,
+ y_strikeout_position,
+ family_class;
+ Panose panose;
+ uint32 unicode_range[4];
+ int8 ach_vend_id[4];
+ uint16 fs_selection,
+ fs_first_char_index,
+ fs_last_char_index, // Acording to Apple's spec this is where v0 should end
+ typo_ascender,
+ typo_descender,
+ type_linegap,
+ win_ascent,
+ win_descent;
+
+ enum
+ {
+ Italic =0x01,
+ Underscore=0x02,
+ Negative =0x04,
+ Outlined =0x08,
+ StrikeOut =0x10,
+ Bold =0x20
+ };
+ };
+
+ struct Compatibility1 : Compatibility0
+ {
+ uint32 codepage_range[2];
+ };
+
+ struct Compatibility2 : Compatibility1
+ {
+ int16 x_height,
+ cap_height;
+ uint16 default_char,
+ break_char,
+ max_context;
+ };
+
+ struct Compatibility3 : Compatibility2 {};
+
+ typedef Compatibility3 Compatibility;
+
+
+ struct NameRecord
+ {
+ uint16 platform_id,
+ platform_specific_id,
+ language_id,
+ name_id,
+ length,
+ offset;
+ enum {Unicode, Mactintosh, Reserved, Microsoft};
+ enum
+ {
+ Copyright, Family, Subfamily, UniqueSubfamily,
+ Fullname, Version, PostScript
+ };
+ };
+
+ struct LangTagRecord
+ {
+ uint16 length,
+ offset;
+ };
+
+ struct FontNames
+ {
+ uint16 format,
+ count,
+ string_offset;
+ NameRecord name_record[1];
+ };
+
+
+ struct HorizontalMetric
+ {
+ uint16 advance_width;
+ int16 left_side_bearing;
+ };
+
+
+ struct Glyph
+ {
+ int16 number_of_contours;
+ fword x_min,
+ y_min,
+ x_max,
+ y_max;
+ };
+
+ struct SimpleGlyph : Glyph
+ {
+ uint16 end_pts_of_contours[1];
+ enum
+ {
+ OnCurve = 0x01,
+ XShort = 0x02,
+ YShort = 0x04,
+ Repeat = 0x08,
+ XIsSame = 0x10,
+ XIsPos = 0x10,
+ YIsSame = 0x20,
+ YIsPos = 0x20
+ };
+ };
+
+ struct CompoundGlyph : Glyph
+ {
+ uint16 flags,
+ glyph_index;
+ enum
+ {
+ Arg1Arg2Words = 0x01,
+ ArgsAreXYValues = 0x02,
+ RoundXYToGrid = 0x04,
+ HaveScale = 0x08,
+ MoreComponents = 0x20,
+ HaveXAndYScale = 0x40,
+ HaveTwoByTwo = 0x80,
+ HaveInstructions = 0x100,
+ UseMyMetrics = 0x200,
+ OverlapCompund = 0x400,
+ ScaledOffset = 0x800,
+ UnscaledOffset = 0x1000
+ };
+ };
+
+#pragma pack()
+} // end of namespace Sfnt
+
+} // end of namespace TtfUtil
+} // end of namespace graphite2
diff --git a/gfx/graphite2/src/inc/TtfUtil.h b/gfx/graphite2/src/inc/TtfUtil.h
new file mode 100644
index 000000000..fe1c2a585
--- /dev/null
+++ b/gfx/graphite2/src/inc/TtfUtil.h
@@ -0,0 +1,206 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+/*--------------------------------------------------------------------*//*:Ignore this sentence.
+
+File: TtfUtil.h
+Responsibility: Alan Ward
+Last reviewed: Not yet.
+
+Description:
+ Utility class for handling TrueType font files.
+----------------------------------------------------------------------------------------------*/
+
+
+#include <cstddef>
+
+namespace graphite2
+{
+namespace TtfUtil
+{
+
+typedef long fontTableId32;
+typedef unsigned short gid16;
+
+#define TTF_TAG(a,b,c,d) ((a << 24UL) + (b << 16UL) + (c << 8UL) + (d))
+
+// Enumeration used to specify a table in a TTF file
+class Tag
+{
+ unsigned long _v;
+public:
+ Tag(const char n[5]) throw() : _v(TTF_TAG(n[0],n[1],n[2],n[3])) {}
+ Tag(const unsigned long tag) throw() : _v(tag) {}
+
+ operator unsigned long () const throw () { return _v; }
+
+ enum
+ {
+ Feat = TTF_TAG('F','e','a','t'),
+ Glat = TTF_TAG('G','l','a','t'),
+ Gloc = TTF_TAG('G','l','o','c'),
+ Sile = TTF_TAG('S','i','l','e'),
+ Silf = TTF_TAG('S','i','l','f'),
+ Sill = TTF_TAG('S','i','l','l'),
+ cmap = TTF_TAG('c','m','a','p'),
+ cvt = TTF_TAG('c','v','t',' '),
+ cryp = TTF_TAG('c','r','y','p'),
+ head = TTF_TAG('h','e','a','d'),
+ fpgm = TTF_TAG('f','p','g','m'),
+ gdir = TTF_TAG('g','d','i','r'),
+ glyf = TTF_TAG('g','l','y','f'),
+ hdmx = TTF_TAG('h','d','m','x'),
+ hhea = TTF_TAG('h','h','e','a'),
+ hmtx = TTF_TAG('h','m','t','x'),
+ loca = TTF_TAG('l','o','c','a'),
+ kern = TTF_TAG('k','e','r','n'),
+ LTSH = TTF_TAG('L','T','S','H'),
+ maxp = TTF_TAG('m','a','x','p'),
+ name = TTF_TAG('n','a','m','e'),
+ OS_2 = TTF_TAG('O','S','/','2'),
+ post = TTF_TAG('p','o','s','t'),
+ prep = TTF_TAG('p','r','e','p')
+ };
+};
+
+/*----------------------------------------------------------------------------------------------
+ Class providing utility methods to parse a TrueType font file (TTF).
+ Callling application handles all file input and memory allocation.
+ Assumes minimal knowledge of TTF file format.
+----------------------------------------------------------------------------------------------*/
+ ////////////////////////////////// tools to find & check TTF tables
+ bool GetHeaderInfo(size_t & lOffset, size_t & lSize);
+ bool CheckHeader(const void * pHdr);
+ bool GetTableDirInfo(const void * pHdr, size_t & lOffset, size_t & lSize);
+ bool GetTableInfo(const Tag TableTag, const void * pHdr, const void * pTableDir,
+ size_t & lOffset, size_t & lSize);
+ bool CheckTable(const Tag TableId, const void * pTable, size_t lTableSize);
+
+ ////////////////////////////////// simple font wide info
+ size_t GlyphCount(const void * pMaxp);
+#ifdef ALL_TTFUTILS
+ size_t MaxCompositeComponentCount(const void * pMaxp);
+ size_t MaxCompositeLevelCount(const void * pMaxp);
+ size_t LocaGlyphCount(size_t lLocaSize, const void * pHead); // throw (std::domain_error);
+#endif
+ int DesignUnits(const void * pHead);
+#ifdef ALL_TTFUTILS
+ int HeadTableCheckSum(const void * pHead);
+ void HeadTableCreateTime(const void * pHead, unsigned int * pnDateBC, unsigned int * pnDateAD);
+ void HeadTableModifyTime(const void * pHead, unsigned int * pnDateBC, unsigned int * pnDateAD);
+ bool IsItalic(const void * pHead);
+ int FontAscent(const void * pOs2);
+ int FontDescent(const void * pOs2);
+ bool FontOs2Style(const void *pOs2, bool & fBold, bool & fItalic);
+ bool Get31EngFamilyInfo(const void * pName, size_t & lOffset, size_t & lSize);
+ bool Get31EngFullFontInfo(const void * pName, size_t & lOffset, size_t & lSize);
+ bool Get30EngFamilyInfo(const void * pName, size_t & lOffset, size_t & lSize);
+ bool Get30EngFullFontInfo(const void * pName, size_t & lOffset, size_t & lSize);
+ int PostLookup(const void * pPost, size_t lPostSize, const void * pMaxp,
+ const char * pPostName);
+#endif
+
+ ////////////////////////////////// utility methods helpful for name table
+ bool GetNameInfo(const void * pName, int nPlatformId, int nEncodingId,
+ int nLangId, int nNameId, size_t & lOffset, size_t & lSize);
+ //size_t NameTableLength(const byte * pTable);
+#ifdef ALL_TTFUTILS
+ int GetLangsForNames(const void * pName, int nPlatformId, int nEncodingId,
+ int *nameIdList, int cNameIds, short *langIdList);
+ void SwapWString(void * pWStr, size_t nSize = 0); // throw (std::invalid_argument);
+#endif
+
+ ////////////////////////////////// cmap lookup tools
+ const void * FindCmapSubtable(const void * pCmap, int nPlatformId = 3,
+ int nEncodingId = 1, size_t length = 0);
+ bool CheckCmapSubtable4(const void * pCmap31, const void * pCmapEnd /*, unsigned int maxgid*/);
+ gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey = 0);
+ unsigned int CmapSubtable4NextCodepoint(const void *pCmap31, unsigned int nUnicodeId,
+ int * pRangeKey = 0);
+ bool CheckCmapSubtable12(const void *pCmap310, const void * pCmapEnd /*, unsigned int maxgid*/);
+ gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey = 0);
+ unsigned int CmapSubtable12NextCodepoint(const void *pCmap310, unsigned int nUnicodeId,
+ int * pRangeKey = 0);
+
+ ///////////////////////////////// horizontal metric data for a glyph
+ bool HorMetrics(gid16 nGlyphId, const void * pHmtx, size_t lHmtxSize,
+ const void * pHhea, int & nLsb, unsigned int & nAdvWid);
+
+ ////////////////////////////////// primitives for loca and glyf lookup
+ size_t LocaLookup(gid16 nGlyphId, const void * pLoca, size_t lLocaSize,
+ const void * pHead); // throw (std::out_of_range);
+ void * GlyfLookup(const void * pGlyf, size_t lGlyfOffset, size_t lTableLen);
+
+ ////////////////////////////////// primitves for simple glyph data
+ bool GlyfBox(const void * pSimpleGlyf, int & xMin, int & yMin,
+ int & xMax, int & yMax);
+
+#ifdef ALL_TTFUTILS
+ int GlyfContourCount(const void * pSimpleGlyf);
+ bool GlyfContourEndPoints(const void * pSimpleGlyf, int * prgnContourEndPoint,
+ int cnPointsTotal, size_t & cnPoints);
+ bool GlyfPoints(const void * pSimpleGlyf, int * prgnX, int * prgnY,
+ char * prgbFlag, int cnPointsTotal, int & cnPoints);
+
+ // primitive to find the glyph ids in a composite glyph
+ bool GetComponentGlyphIds(const void * pSimpleGlyf, int * prgnCompId,
+ size_t cnCompIdTotal, size_t & cnCompId);
+ // primitive to find the placement data for a component in a composite glyph
+ bool GetComponentPlacement(const void * pSimpleGlyf, int nCompId,
+ bool fOffset, int & a, int & b);
+ // primitive to find the transform data for a component in a composite glyph
+ bool GetComponentTransform(const void * pSimpleGlyf, int nCompId,
+ float & flt11, float & flt12, float & flt21, float & flt22, bool & fTransOffset);
+#endif
+
+ ////////////////////////////////// operate on composite or simple glyph (auto glyf lookup)
+ void * GlyfLookup(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead); // primitive used by below methods
+
+#ifdef ALL_TTFUTILS
+ // below are primary user methods for handling glyf data
+ bool IsSpace(gid16 nGlyphId, const void * pLoca, size_t lLocaSize, const void * pHead);
+ bool IsDeepComposite(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead);
+
+ bool GlyfBox(gid16 nGlyphId, const void * pGlyf, const void * pLoca, size_t lGlyfSize, size_t lLocaSize,
+ const void * pHead, int & xMin, int & yMin, int & xMax, int & yMax);
+ bool GlyfContourCount(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void *pHead, size_t & cnContours);
+ bool GlyfContourEndPoints(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead, int * prgnContourEndPoint, size_t cnPoints);
+ bool GlyfPoints(gid16 nGlyphId, const void * pGlyf, const void * pLoca,
+ size_t lGlyfSize, size_t lLocaSize, const void * pHead, const int * prgnContourEndPoint, size_t cnEndPoints,
+ int * prgnX, int * prgnY, bool * prgfOnCurve, size_t cnPoints);
+
+ // utitily method used by high-level GlyfPoints
+ bool SimplifyFlags(char * prgbFlags, int cnPoints);
+ bool CalcAbsolutePoints(int * prgnX, int * prgnY, int cnPoints);
+#endif
+
+} // end of namespace TtfUtil
+} // end of namespace graphite2
diff --git a/gfx/graphite2/src/inc/UtfCodec.h b/gfx/graphite2/src/inc/UtfCodec.h
new file mode 100644
index 000000000..9dc760fdc
--- /dev/null
+++ b/gfx/graphite2/src/inc/UtfCodec.h
@@ -0,0 +1,249 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include <cstdlib>
+#include "inc/Main.h"
+
+namespace graphite2 {
+
+typedef uint32 uchar_t;
+
+template <int N>
+struct _utf_codec
+{
+ typedef uchar_t codeunit_t;
+
+ static void put(codeunit_t * cp, const uchar_t , int8 & len) throw();
+ static uchar_t get(const codeunit_t * cp, int8 & len) throw();
+ static bool validate(const codeunit_t * s, const codeunit_t * e) throw();
+};
+
+
+template <>
+struct _utf_codec<32>
+{
+private:
+ static const uchar_t limit = 0x110000;
+public:
+ typedef uint32 codeunit_t;
+
+ inline
+ static void put(codeunit_t * cp, const uchar_t usv, int8 & l) throw()
+ {
+ *cp = usv; l = 1;
+ }
+
+ inline
+ static uchar_t get(const codeunit_t * cp, int8 & l) throw()
+ {
+ if (cp[0] < limit) { l = 1; return cp[0]; }
+ else { l = -1; return 0xFFFD; }
+ }
+
+ inline
+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
+ {
+ return e > s;
+ }
+};
+
+
+template <>
+struct _utf_codec<16>
+{
+private:
+ static const int32 lead_offset = 0xD800 - (0x10000 >> 10);
+ static const int32 surrogate_offset = 0x10000 - (0xD800 << 10) - 0xDC00;
+public:
+ typedef uint16 codeunit_t;
+
+ inline
+ static void put(codeunit_t * cp, const uchar_t usv, int8 & l) throw()
+ {
+ if (usv < 0x10000) { l = 1; cp[0] = codeunit_t(usv); }
+ else
+ {
+ cp[0] = codeunit_t(lead_offset + (usv >> 10));
+ cp[1] = codeunit_t(0xDC00 + (usv & 0x3FF));
+ l = 2;
+ }
+ }
+
+ inline
+ static uchar_t get(const codeunit_t * cp, int8 & l) throw()
+ {
+ const uint32 uh = cp[0];
+ l = 1;
+
+ if (uh < 0xD800|| uh > 0xDFFF) { return uh; }
+ const uint32 ul = cp[1];
+ if (uh > 0xDBFF || ul < 0xDC00 || ul > 0xDFFF) { l = -1; return 0xFFFD; }
+ ++l;
+ return (uh<<10) + ul + surrogate_offset;
+ }
+
+ inline
+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
+ {
+ const ptrdiff_t n = e-s;
+ if (n <= 0) return n == 0;
+ const uint32 u = *(s+(n-1)); // Get the last codepoint
+ return (u < 0xD800 || u > 0xDBFF);
+ }
+};
+
+
+template <>
+struct _utf_codec<8>
+{
+private:
+ static const int8 sz_lut[16];
+ static const byte mask_lut[5];
+ static const uchar_t limit = 0x110000;
+
+public:
+ typedef uint8 codeunit_t;
+
+ inline
+ static void put(codeunit_t * cp, const uchar_t usv, int8 & l) throw()
+ {
+ if (usv < 0x80) {l = 1; cp[0] = usv; return; }
+ if (usv < 0x0800) {l = 2; cp[0] = 0xC0 + (usv >> 6); cp[1] = 0x80 + (usv & 0x3F); return; }
+ if (usv < 0x10000) {l = 3; cp[0] = 0xE0 + (usv >> 12); cp[1] = 0x80 + ((usv >> 6) & 0x3F); cp[2] = 0x80 + (usv & 0x3F); return; }
+ else {l = 4; cp[0] = 0xF0 + (usv >> 18); cp[1] = 0x80 + ((usv >> 12) & 0x3F); cp[2] = 0x80 + ((usv >> 6) & 0x3F); cp[3] = 0x80 + (usv & 0x3F); return; }
+ }
+
+ inline
+ static uchar_t get(const codeunit_t * cp, int8 & l) throw()
+ {
+ const int8 seq_sz = sz_lut[*cp >> 4];
+ uchar_t u = *cp & mask_lut[seq_sz];
+ l = 1;
+ bool toolong = false;
+
+ switch(seq_sz) {
+ case 4: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong = (u < 0x10); GR_FALLTHROUGH;
+ // no break
+ case 3: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x20); GR_FALLTHROUGH;
+ // no break
+ case 2: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x80); GR_FALLTHROUGH;
+ // no break
+ case 1: break;
+ case 0: l = -1; return 0xFFFD;
+ }
+
+ if (l != seq_sz || toolong || u >= limit)
+ {
+ l = -l;
+ return 0xFFFD;
+ }
+ return u;
+ }
+
+ inline
+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
+ {
+ const ptrdiff_t n = e-s;
+ if (n <= 0) return n == 0;
+ s += (n-1);
+ if (*s < 0x80) return true;
+ if (*s >= 0xC0) return false;
+ if (n == 1) return true;
+ if (*--s < 0x80) return true;
+ if (*s >= 0xe0) return false;
+ if (n == 2 || *s >= 0xC0) return true;
+ if (*--s < 0x80) return true;
+ if (*s >= 0xF0) return false;
+ return true;
+ }
+
+};
+
+
+template <typename C>
+class _utf_iterator
+{
+ typedef _utf_codec<sizeof(C)*8> codec;
+
+ C * cp;
+ mutable int8 sl;
+
+public:
+ typedef C codeunit_type;
+ typedef uchar_t value_type;
+ typedef uchar_t * pointer;
+
+ class reference
+ {
+ const _utf_iterator & _i;
+
+ reference(const _utf_iterator & i): _i(i) {}
+ public:
+ operator value_type () const throw () { return codec::get(_i.cp, _i.sl); }
+ reference & operator = (const value_type usv) throw() { codec::put(_i.cp, usv, _i.sl); return *this; }
+
+ friend class _utf_iterator;
+ };
+
+
+ _utf_iterator(const void * us=0) : cp(reinterpret_cast<C *>(const_cast<void *>(us))), sl(1) { }
+
+ _utf_iterator & operator ++ () { cp += abs(sl); return *this; }
+ _utf_iterator operator ++ (int) { _utf_iterator tmp(*this); operator++(); return tmp; }
+
+ bool operator == (const _utf_iterator & rhs) const throw() { return cp >= rhs.cp; }
+ bool operator != (const _utf_iterator & rhs) const throw() { return !operator==(rhs); }
+
+ reference operator * () const throw() { return *this; }
+ pointer operator ->() const throw() { return &operator *(); }
+
+ operator codeunit_type * () const throw() { return cp; }
+
+ bool error() const throw() { return sl < 1; }
+};
+
+template <typename C>
+struct utf
+{
+ typedef typename _utf_codec<sizeof(C)*8>::codeunit_t codeunit_t;
+
+ typedef _utf_iterator<C> iterator;
+ typedef _utf_iterator<const C> const_iterator;
+
+ inline
+ static bool validate(codeunit_t * s, codeunit_t * e) throw() {
+ return _utf_codec<sizeof(C)*8>::validate(s,e);
+ }
+};
+
+
+typedef utf<uint32> utf32;
+typedef utf<uint16> utf16;
+typedef utf<uint8> utf8;
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/bits.h b/gfx/graphite2/src/inc/bits.h
new file mode 100644
index 000000000..615c6cba6
--- /dev/null
+++ b/gfx/graphite2/src/inc/bits.h
@@ -0,0 +1,146 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2012, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+namespace graphite2
+{
+
+
+#if defined GRAPHITE2_BUILTINS && (defined __GNUC__ || defined __clang__)
+
+template<typename T>
+inline unsigned int bit_set_count(T v)
+{
+ return __builtin_popcount(v);
+}
+
+template<>
+inline unsigned int bit_set_count(int16 v)
+{
+ return __builtin_popcount(static_cast<uint16>(v));
+}
+
+template<>
+inline unsigned int bit_set_count(int8 v)
+{
+ return __builtin_popcount(static_cast<uint8>(v));
+}
+
+template<>
+inline unsigned int bit_set_count(unsigned long v)
+{
+ return __builtin_popcountl(v);
+}
+
+template<>
+inline unsigned int bit_set_count(signed long v)
+{
+ return __builtin_popcountl(v);
+}
+
+template<>
+inline unsigned int bit_set_count(unsigned long long v)
+{
+ return __builtin_popcountll(v);
+}
+
+template<>
+inline unsigned int bit_set_count(signed long long v)
+{
+ return __builtin_popcountll(v);
+}
+#else
+
+template<typename T>
+inline unsigned int bit_set_count(T v)
+{
+ v = v - ((v >> 1) & T(~(0UL)/3)); // temp
+ v = (v & T(~(0UL)/15*3)) + ((v >> 2) & T(~(0UL)/15*3)); // temp
+ v = (v + (v >> 4)) & T(~(0UL)/255*15); // temp
+ return (T)(v * T(~(0UL)/255)) >> (sizeof(T)-1)*8; // count
+}
+
+#endif
+
+
+template<int S>
+inline unsigned long _mask_over_val(unsigned long v)
+{
+ v = _mask_over_val<S/2>(v);
+ v |= v >> S*4;
+ return v;
+}
+
+template<>
+inline unsigned long _mask_over_val<1>(unsigned long v)
+{
+ v |= v >> 1;
+ v |= v >> 2;
+ v |= v >> 4;
+ return v;
+}
+
+template<typename T>
+inline T mask_over_val(T v)
+{
+ return _mask_over_val<sizeof(T)>(v);
+}
+
+template<typename T>
+inline unsigned long next_highest_power2(T v)
+{
+ return _mask_over_val<sizeof(T)>(v-1)+1;
+}
+
+template<typename T>
+inline unsigned int log_binary(T v)
+{
+ return bit_set_count(mask_over_val(v))-1;
+}
+
+template<typename T>
+inline T has_zero(const T x)
+{
+ return (x - T(~T(0)/255)) & ~x & T(~T(0)/255*128);
+}
+
+template<typename T>
+inline T zero_bytes(const T x, unsigned char n)
+{
+ const T t = T(~T(0)/255*n);
+ return T((has_zero(x^t) >> 7)*n);
+}
+
+#if 0
+inline float float_round(float x, uint32 m)
+{
+ *reinterpret_cast<unsigned int *>(&x) &= m;
+ return *reinterpret_cast<float *>(&x);
+}
+#endif
+
+}
diff --git a/gfx/graphite2/src/inc/debug.h b/gfx/graphite2/src/inc/debug.h
new file mode 100644
index 000000000..97175eb2c
--- /dev/null
+++ b/gfx/graphite2/src/inc/debug.h
@@ -0,0 +1,89 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// debug.h
+//
+// Created on: 22 Dec 2011
+// Author: tim
+
+#pragma once
+
+#if !defined GRAPHITE2_NTRACING
+
+#include <utility>
+#include "inc/json.h"
+#include "inc/Position.h"
+
+namespace graphite2
+{
+
+class CharInfo;
+class Segment;
+class Slot;
+
+typedef std::pair<const Segment * const, const Slot * const> dslot;
+struct objectid
+{
+ char name[16];
+ objectid(const dslot &) throw();
+ objectid(const Segment * const p) throw();
+};
+
+
+json & operator << (json & j, const Position &) throw();
+json & operator << (json & j, const Rect &) throw();
+json & operator << (json & j, const CharInfo &) throw();
+json & operator << (json & j, const dslot &) throw();
+json & operator << (json & j, const objectid &) throw();
+json & operator << (json & j, const telemetry &) throw();
+
+
+
+inline
+json & operator << (json & j, const Position & p) throw()
+{
+ return j << json::flat << json::array << p.x << p.y << json::close;
+}
+
+
+inline
+json & operator << (json & j, const Rect & p) throw()
+{
+ return j << json::flat << json::array << p.bl.x << p.bl.y << p.tr.x << p.tr.y << json::close;
+}
+
+
+inline
+json & operator << (json & j, const objectid & sid) throw()
+{
+ return j << sid.name;
+}
+
+
+} // namespace graphite2
+
+#endif //!defined GRAPHITE2_NTRACING
+
diff --git a/gfx/graphite2/src/inc/json.h b/gfx/graphite2/src/inc/json.h
new file mode 100644
index 000000000..90b8573d6
--- /dev/null
+++ b/gfx/graphite2/src/inc/json.h
@@ -0,0 +1,172 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// JSON pretty printer for graphite font debug output logging.
+// Created on: 15 Dec 2011
+// Author: Tim Eves
+
+#pragma once
+
+#include "inc/Main.h"
+#include <cassert>
+#include <cstdio>
+#include "inc/List.h"
+
+namespace graphite2 {
+
+class json
+{
+ // Prevent copying
+ json(const json &);
+ json & operator = (const json &);
+
+ typedef void (*_context_t)(json &);
+ class _null_t {};
+
+ FILE * const _stream;
+ char _contexts[128], // context stack
+ * _context, // current context (top of stack)
+ * _flatten; // if !0 points to context above which
+ // pretty printed output should occur.
+ Vector<void *> _env;
+
+ void context(const char current) throw();
+ void indent(const int d=0) throw();
+ void push_context(const char, const char) throw();
+ void pop_context() throw();
+
+public:
+ class closer;
+
+ typedef const char * string;
+ typedef double number;
+ typedef long signed int integer;
+ typedef bool boolean;
+ static const _null_t null;
+
+ void setenv(unsigned int index, void *val) { _env.reserve(index + 1); if (index >= _env.size()) _env.insert(_env.end(), _env.size() - index + 1, 0); _env[index] = val; }
+ void *getenv(unsigned int index) const { return _env[index]; }
+ const Vector<void *> &getenvs() const { return _env; }
+
+ static void flat(json &) throw();
+ static void close(json &) throw();
+ static void object(json &) throw();
+ static void array(json &) throw();
+ static void item(json &) throw();
+
+ json(FILE * stream) throw();
+ ~json() throw ();
+
+ FILE * stream() const throw();
+
+ json & operator << (string) throw();
+ json & operator << (number) throw();
+ json & operator << (integer) throw();
+ json & operator << (long unsigned int d) throw();
+ json & operator << (boolean) throw();
+ json & operator << (_null_t) throw();
+ json & operator << (_context_t) throw();
+
+ operator bool() const throw();
+ bool good() const throw();
+ bool eof() const throw();
+
+ CLASS_NEW_DELETE;
+};
+
+class json::closer
+{
+ // Prevent copying.
+ closer(const closer &);
+ closer & operator = (const closer &);
+
+ json * const _j;
+public:
+ closer(json * const j) : _j(j) {}
+ ~closer() throw() { if (_j) *_j << close; }
+};
+
+inline
+json::json(FILE * s) throw()
+: _stream(s), _context(_contexts), _flatten(0)
+{
+ if (good())
+ fflush(s);
+}
+
+
+inline
+json::~json() throw ()
+{
+ while (_context > _contexts) pop_context();
+}
+
+inline
+FILE * json::stream() const throw() { return _stream; }
+
+
+inline
+json & json::operator << (json::_context_t ctxt) throw()
+{
+ ctxt(*this);
+ return *this;
+}
+
+inline
+json & operator << (json & j, signed char d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, short signed int d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, signed int d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, unsigned char d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, short unsigned int d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, unsigned int d) throw() { return j << json::integer(d); }
+
+inline
+json & operator << (json & j, char c) throw ()
+{
+ const char str[2] = {c,0};
+ return j << str;
+}
+
+inline
+json::operator bool() const throw() { return good(); }
+
+inline
+bool json::good() const throw() { return _stream && ferror(_stream) == 0; }
+
+inline
+bool json::eof() const throw() { return feof(_stream) != 0; }
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/locale2lcid.h b/gfx/graphite2/src/inc/locale2lcid.h
new file mode 100644
index 000000000..25d5c0a3c
--- /dev/null
+++ b/gfx/graphite2/src/inc/locale2lcid.h
@@ -0,0 +1,450 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+#include <cstring>
+#include <cassert>
+
+#include "inc/Main.h"
+
+
+namespace graphite2 {
+
+struct IsoLangEntry
+{
+ unsigned short mnLang;
+ char maLangStr[4];
+ char maCountry[3];
+};
+
+// Windows Language ID, Locale ISO-639 language, country code as used in
+// naming table of OpenType fonts
+const IsoLangEntry LANG_ENTRIES[] = {
+ { 0x0401, "ar","SA" }, // Arabic Saudi Arabia
+ { 0x0402, "bg","BG" }, // Bulgarian Bulgaria
+ { 0x0403, "ca","ES" }, // Catalan Catalan
+ { 0x0404, "zh","TW" }, // Chinese Taiwan
+ { 0x0405, "cs","CZ" }, // Czech Czech Republic
+ { 0x0406, "da","DK" }, // Danish Denmark
+ { 0x0407, "de","DE" }, // German Germany
+ { 0x0408, "el","GR" }, // Greek Greece
+ { 0x0409, "en","US" }, // English United States
+ { 0x040A, "es","ES" }, // Spanish (Traditional Sort) Spain
+ { 0x040B, "fi","FI" }, // Finnish Finland
+ { 0x040C, "fr","FR" }, // French France
+ { 0x040D, "he","IL" }, // Hebrew Israel
+ { 0x040E, "hu","HU" }, // Hungarian Hungary
+ { 0x040F, "is","IS" }, // Icelandic Iceland
+ { 0x0410, "it","IT" }, // Italian Italy
+ { 0x0411, "jp","JP" }, // Japanese Japan
+ { 0x0412, "ko","KR" }, // Korean Korea
+ { 0x0413, "nl","NL" }, // Dutch Netherlands
+ { 0x0414, "no","NO" }, // Norwegian (Bokmal) Norway
+ { 0x0415, "pl","PL" }, // Polish Poland
+ { 0x0416, "pt","BR" }, // Portuguese Brazil
+ { 0x0417, "rm","CH" }, // Romansh Switzerland
+ { 0x0418, "ro","RO" }, // Romanian Romania
+ { 0x0419, "ru","RU" }, // Russian Russia
+ { 0x041A, "hr","HR" }, // Croatian Croatia
+ { 0x041B, "sk","SK" }, // Slovak Slovakia
+ { 0x041C, "sq","AL" }, // Albanian Albania
+ { 0x041D, "sv","SE" }, // Swedish Sweden
+ { 0x041E, "th","TH" }, // Thai Thailand
+ { 0x041F, "tr","TR" }, // Turkish Turkey
+ { 0x0420, "ur","PK" }, // Urdu Islamic Republic of Pakistan
+ { 0x0421, "id","ID" }, // Indonesian Indonesia
+ { 0x0422, "uk","UA" }, // Ukrainian Ukraine
+ { 0x0423, "be","BY" }, // Belarusian Belarus
+ { 0x0424, "sl","SI" }, // Slovenian Slovenia
+ { 0x0425, "et","EE" }, // Estonian Estonia
+ { 0x0426, "lv","LV" }, // Latvian Latvia
+ { 0x0427, "lt","LT" }, // Lithuanian Lithuania
+ { 0x0428, "tg","TJ" }, // Tajik (Cyrillic) Tajikistan
+ { 0x042A, "vi","VN" }, // Vietnamese Vietnam
+ { 0x042B, "hy","AM" }, // Armenian Armenia
+ { 0x042C, "az","AZ" }, // Azeri (Latin) Azerbaijan
+ { 0x042D, "eu","" }, // Basque Basque
+ { 0x042E, "hsb","DE" }, // Upper Sorbian Germany
+ { 0x042F, "mk","MK" }, // Macedonian (FYROM) Former Yugoslav Republic of Macedonia
+ { 0x0432, "tn","ZA" }, // Setswana South Africa
+ { 0x0434, "xh","ZA" }, // isiXhosa South Africa
+ { 0x0435, "zu","ZA" }, // isiZulu South Africa
+ { 0x0436, "af","ZA" }, // Afrikaans South Africa
+ { 0x0437, "ka","GE" }, // Georgian Georgia
+ { 0x0438, "fo","FO" }, // Faroese Faroe Islands
+ { 0x0439, "hi","IN" }, // Hindi India
+ { 0x043A, "mt","MT" }, // Maltese Malta
+ { 0x043B, "se","NO" }, // Sami (Northern) Norway
+ { 0x043E, "ms","MY" }, // Malay Malaysia
+ { 0x043F, "kk","KZ" }, // Kazakh Kazakhstan
+ { 0x0440, "ky","KG" }, // Kyrgyz Kyrgyzstan
+ { 0x0441, "sw","KE" }, // Kiswahili Kenya
+ { 0x0442, "tk","TM" }, // Turkmen Turkmenistan
+ { 0x0443, "uz","UZ" }, // Uzbek (Latin) Uzbekistan
+ { 0x0444, "tt","RU" }, // Tatar Russia
+ { 0x0445, "bn","IN" }, // Bengali India
+ { 0x0446, "pa","IN" }, // Punjabi India
+ { 0x0447, "gu","IN" }, // Gujarati India
+ { 0x0448, "or","IN" }, // Oriya India
+ { 0x0448, "wo","SN" }, // Wolof Senegal
+ { 0x0449, "ta","IN" }, // Tamil India
+ { 0x044A, "te","IN" }, // Telugu India
+ { 0x044B, "kn","IN" }, // Kannada India
+ { 0x044C, "ml","IN" }, // Malayalam India
+ { 0x044D, "as","IN" }, // Assamese India
+ { 0x044E, "mr","IN" }, // Marathi India
+ { 0x044F, "sa","IN" }, // Sanskrit India
+ { 0x0450, "mn","MN" }, // Mongolian (Cyrillic) Mongolia
+ { 0x0451, "bo","CN" }, // Tibetan PRC
+ { 0x0452, "cy","GB" }, // Welsh United Kingdom
+ { 0x0453, "km","KH" }, // Khmer Cambodia
+ { 0x0454, "lo","LA" }, // Lao Lao P.D.R.
+ { 0x0455, "my","MM" }, // Burmese Myanmar - not listed in Microsoft docs anymore
+ { 0x0456, "gl","ES" }, // Galician Galician
+ { 0x0457, "kok","IN" }, // Konkani India
+ { 0x045A, "syr","TR" }, // Syriac Syria
+ { 0x045B, "si","LK" }, // Sinhala Sri Lanka
+ { 0x045D, "iu","CA" }, // Inuktitut Canada
+ { 0x045E, "am","ET" }, // Amharic Ethiopia
+ { 0x0461, "ne","NP" }, // Nepali Nepal
+ { 0x0462, "fy","NL" }, // Frisian Netherlands
+ { 0x0463, "ps","AF" }, // Pashto Afghanistan
+ { 0x0464, "fil","PH" }, // Filipino Philippines
+ { 0x0465, "dv","MV" }, // Divehi Maldives
+ { 0x0468, "ha","NG" }, // Hausa (Latin) Nigeria
+ { 0x046A, "yo","NG" }, // Yoruba Nigeria
+ { 0x046B, "qu","BO" }, // Quechua Bolivia
+ { 0x046C, "st","ZA" }, // Sesotho sa Leboa South Africa
+ { 0x046D, "ba","RU" }, // Bashkir Russia
+ { 0x046E, "lb","LU" }, // Luxembourgish Luxembourg
+ { 0x046F, "kl","GL" }, // Greenlandic Greenland
+ { 0x0470, "ig","NG" }, // Igbo Nigeria
+ { 0x0478, "ii","CN" }, // Yi PRC
+ { 0x047A, "arn","CL" }, // Mapudungun Chile
+ { 0x047C, "moh","CA" }, // Mohawk Mohawk
+ { 0x047E, "br","FR" }, // Breton France
+ { 0x0480, "ug","CN" }, // Uighur PRC
+ { 0x0481, "mi","NZ" }, // Maori New Zealand
+ { 0x0482, "oc","FR" }, // Occitan France
+ { 0x0483, "co","FR" }, // Corsican France
+ { 0x0484, "gsw","FR" }, // Alsatian France
+ { 0x0485, "sah","RU" }, // Yakut Russia
+ { 0x0486, "qut","GT" }, // K'iche Guatemala
+ { 0x0487, "rw","RW" }, // Kinyarwanda Rwanda
+ { 0x048C, "gbz","AF" }, // Dari Afghanistan
+ { 0x0801, "ar","IQ" }, // Arabic Iraq
+ { 0x0804, "zn","CH" }, // Chinese People's Republic of China
+ { 0x0807, "de","CH" }, // German Switzerland
+ { 0x0809, "en","GB" }, // English United Kingdom
+ { 0x080A, "es","MX" }, // Spanish Mexico
+ { 0x080C, "fr","BE" }, // French Belgium
+ { 0x0810, "it","CH" }, // Italian Switzerland
+ { 0x0813, "nl","BE" }, // Dutch Belgium
+ { 0x0814, "nn","NO" }, // Norwegian (Nynorsk) Norway
+ { 0x0816, "pt","PT" }, // Portuguese Portugal
+ { 0x081A, "sh","RS" }, // Serbian (Latin) Serbia
+ { 0x081D, "sv","FI" }, // Sweden Finland
+ { 0x082C, "az","AZ" }, // Azeri (Cyrillic) Azerbaijan
+ { 0x082E, "dsb","DE" }, // Lower Sorbian Germany
+ { 0x083B, "se","SE" }, // Sami (Northern) Sweden
+ { 0x083C, "ga","IE" }, // Irish Ireland
+ { 0x083E, "ms","BN" }, // Malay Brunei Darussalam
+ { 0x0843, "uz","UZ" }, // Uzbek (Cyrillic) Uzbekistan
+ { 0x0845, "bn","BD" }, // Bengali Bangladesh
+ { 0x0850, "mn","MN" }, // Mongolian (Traditional) People's Republic of China
+ { 0x085D, "iu","CA" }, // Inuktitut (Latin) Canada
+ { 0x085F, "ber","DZ" }, // Tamazight (Latin) Algeria
+ { 0x086B, "es","EC" }, // Quechua Ecuador
+ { 0x0C01, "ar","EG" }, // Arabic Egypt
+ { 0x0C04, "zh","HK" }, // Chinese Hong Kong S.A.R.
+ { 0x0C07, "de","AT" }, // German Austria
+ { 0x0C09, "en","AU" }, // English Australia
+ { 0x0C0A, "es","ES" }, // Spanish (Modern Sort) Spain
+ { 0x0C0C, "fr","CA" }, // French Canada
+ { 0x0C1A, "sr","CS" }, // Serbian (Cyrillic) Serbia
+ { 0x0C3B, "se","FI" }, // Sami (Northern) Finland
+ { 0x0C6B, "qu","PE" }, // Quechua Peru
+ { 0x1001, "ar","LY" }, // Arabic Libya
+ { 0x1004, "zh","SG" }, // Chinese Singapore
+ { 0x1007, "de","LU" }, // German Luxembourg
+ { 0x1009, "en","CA" }, // English Canada
+ { 0x100A, "es","GT" }, // Spanish Guatemala
+ { 0x100C, "fr","CH" }, // French Switzerland
+ { 0x101A, "hr","BA" }, // Croatian (Latin) Bosnia and Herzegovina
+ { 0x103B, "smj","NO" }, // Sami (Lule) Norway
+ { 0x1401, "ar","DZ" }, // Arabic Algeria
+ { 0x1404, "zh","MO" }, // Chinese Macao S.A.R.
+ { 0x1407, "de","LI" }, // German Liechtenstein
+ { 0x1409, "en","NZ" }, // English New Zealand
+ { 0x140A, "es","CR" }, // Spanish Costa Rica
+ { 0x140C, "fr","LU" }, // French Luxembourg
+ { 0x141A, "bs","BA" }, // Bosnian (Latin) Bosnia and Herzegovina
+ { 0x143B, "smj","SE" }, // Sami (Lule) Sweden
+ { 0x1801, "ar","MA" }, // Arabic Morocco
+ { 0x1809, "en","IE" }, // English Ireland
+ { 0x180A, "es","PA" }, // Spanish Panama
+ { 0x180C, "fr","MC" }, // French Principality of Monoco
+ { 0x181A, "sh","BA" }, // Serbian (Latin) Bosnia and Herzegovina
+ { 0x183B, "sma","NO" }, // Sami (Southern) Norway
+ { 0x1C01, "ar","TN" }, // Arabic Tunisia
+ { 0x1C09, "en","ZA" }, // English South Africa
+ { 0x1C0A, "es","DO" }, // Spanish Dominican Republic
+ { 0x1C1A, "sr","BA" }, // Serbian (Cyrillic) Bosnia and Herzegovina
+ { 0x1C3B, "sma","SE" }, // Sami (Southern) Sweden
+ { 0x2001, "ar","OM" }, // Arabic Oman
+ { 0x2009, "en","JM" }, // English Jamaica
+ { 0x200A, "es","VE" }, // Spanish Venezuela
+ { 0x201A, "bs","BA" }, // Bosnian (Cyrillic) Bosnia and Herzegovina
+ { 0x203B, "sms","FI" }, // Sami (Skolt) Finland
+ { 0x2401, "ar","YE" }, // Arabic Yemen
+ { 0x2409, "en","BS" }, // English Caribbean
+ { 0x240A, "es","CO" }, // Spanish Colombia
+ { 0x243B, "smn","FI" }, // Sami (Inari) Finland
+ { 0x2801, "ar","SY" }, // Arabic Syria
+ { 0x2809, "en","BZ" }, // English Belize
+ { 0x280A, "es","PE" }, // Spanish Peru
+ { 0x2C01, "ar","JO" }, // Arabic Jordan
+ { 0x2C09, "en","TT" }, // English Trinidad and Tobago
+ { 0x2C0A, "es","AR" }, // Spanish Argentina
+ { 0x3001, "ar","LB" }, // Arabic Lebanon
+ { 0x3009, "en","ZW" }, // English Zimbabwe
+ { 0x300A, "es","EC" }, // Spanish Ecuador
+ { 0x3401, "ar","KW" }, // Arabic Kuwait
+ { 0x3409, "en","PH" }, // English Republic of the Philippines
+ { 0x340A, "es","CL" }, // Spanish Chile
+ { 0x3801, "ar","AE" }, // Arabic U.A.E.
+ { 0x380A, "es","UY" }, // Spanish Uruguay
+ { 0x3C01, "ar","BH" }, // Arabic Bahrain
+ { 0x3C0A, "es","PY" }, // Spanish Paraguay
+ { 0x4001, "ar","QA" }, // Arabic Qatar
+ { 0x4009, "en","IN" }, // English India
+ { 0x400A, "es","BO" }, // Spanish Bolivia
+ { 0x4409, "en","MY" }, // English Malaysia
+ { 0x440A, "es","SV" }, // Spanish El Salvador
+ { 0x4809, "en","SG" }, // English Singapore
+ { 0x480A, "es","HN" }, // Spanish Honduras
+ { 0x4C0A, "es","NI" }, // Spanish Nicaragua
+ { 0x500A, "es","PR" }, // Spanish Puerto Rico
+ { 0x540A, "es","US" } // Spanish United States
+};
+
+class Locale2Lang
+{
+ Locale2Lang(const Locale2Lang &);
+ Locale2Lang & operator = (const Locale2Lang &);
+
+public:
+ Locale2Lang() : mSeedPosition(128)
+ {
+ memset((void*)mLangLookup, 0, sizeof(mLangLookup));
+ // create a tri lookup on first 2 letters of language code
+ static const int maxIndex = sizeof(LANG_ENTRIES)/sizeof(IsoLangEntry);
+ for (int i = 0; i < maxIndex; i++)
+ {
+ size_t a = LANG_ENTRIES[i].maLangStr[0] - 'a';
+ size_t b = LANG_ENTRIES[i].maLangStr[1] - 'a';
+ if (mLangLookup[a][b])
+ {
+ const IsoLangEntry ** old = mLangLookup[a][b];
+ int len = 1;
+ while (old[len]) len++;
+ len += 2;
+ mLangLookup[a][b] = gralloc<const IsoLangEntry *>(len);
+ if (!mLangLookup[a][b])
+ {
+ mLangLookup[a][b] = old;
+ continue;
+ }
+ mLangLookup[a][b][--len] = NULL;
+ mLangLookup[a][b][--len] = &LANG_ENTRIES[i];
+ while (--len >= 0)
+ {
+ assert(len >= 0);
+ mLangLookup[a][b][len] = old[len];
+ }
+ free(old);
+ }
+ else
+ {
+ mLangLookup[a][b] = gralloc<const IsoLangEntry *>(2);
+ if (!mLangLookup[a][b]) continue;
+ mLangLookup[a][b][1] = NULL;
+ mLangLookup[a][b][0] = &LANG_ENTRIES[i];
+ }
+ }
+ while (2 * mSeedPosition < maxIndex)
+ mSeedPosition *= 2;
+ };
+ ~Locale2Lang()
+ {
+ for (int i = 0; i != 26; ++i)
+ for (int j = 0; j != 26; ++j)
+ free(mLangLookup[i][j]);
+ }
+ unsigned short getMsId(const char * locale) const
+ {
+ size_t length = strlen(locale);
+ size_t langLength = length;
+ const char * language = locale;
+ const char * script = NULL;
+ const char * region = NULL;
+ size_t regionLength = 0;
+ const char * dash = strchr(locale, '-');
+ if (dash && (dash != locale))
+ {
+ langLength = (dash - locale);
+ size_t nextPartLength = length - langLength - 1;
+ if (nextPartLength >= 2)
+ {
+ script = ++dash;
+ dash = strchr(dash, '-');
+ if (dash)
+ {
+ nextPartLength = (dash - script);
+ region = ++dash;
+ }
+ if (nextPartLength == 2 &&
+ (locale[langLength+1] > 0x40) && (locale[langLength+1] < 0x5B) &&
+ (locale[langLength+2] > 0x40) && (locale[langLength+2] < 0x5B))
+ {
+ region = script;
+ regionLength = nextPartLength;
+ script = NULL;
+ }
+ else if (nextPartLength == 4)
+ {
+ if (dash)
+ {
+ dash = strchr(dash, '-');
+ if (dash)
+ {
+ nextPartLength = (dash - region);
+ }
+ else
+ {
+ nextPartLength = langLength - (region - locale);
+ }
+ regionLength = nextPartLength;
+ }
+ }
+ }
+ }
+ size_t a = 'e' - 'a';
+ size_t b = 'n' - 'a';
+ unsigned short langId = 0;
+ int i = 0;
+ switch (langLength)
+ {
+ case 2:
+ {
+ a = language[0] - 'a';
+ b = language[1] - 'a';
+ if ((a < 26) && (b < 26) && mLangLookup[a][b])
+ {
+ while (mLangLookup[a][b][i])
+ {
+ if (mLangLookup[a][b][i]->maLangStr[2] != '\0')
+ {
+ ++i;
+ continue;
+ }
+ if (region && (strncmp(mLangLookup[a][b][i]->maCountry, region, regionLength) == 0))
+ {
+ langId = mLangLookup[a][b][i]->mnLang;
+ break;
+ }
+ else if (langId == 0)
+ {
+ // possible fallback code
+ langId = mLangLookup[a][b][i]->mnLang;
+ }
+ ++i;
+ }
+ }
+ }
+ break;
+ case 3:
+ {
+ a = language[0] - 'a';
+ b = language[1] - 'a';
+ if (mLangLookup[a][b])
+ {
+ while (mLangLookup[a][b][i])
+ {
+ if (mLangLookup[a][b][i]->maLangStr[2] != language[2])
+ {
+ ++i;
+ continue;
+ }
+ if (region && (strncmp(mLangLookup[a][b][i]->maCountry, region, regionLength) == 0))
+ {
+ langId = mLangLookup[a][b][i]->mnLang;
+ break;
+ }
+ else if (langId == 0)
+ {
+ // possible fallback code
+ langId = mLangLookup[a][b][i]->mnLang;
+ }
+ ++i;
+ }
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ if (langId == 0) langId = 0x409;
+ return langId;
+ }
+ const IsoLangEntry * findEntryById(unsigned short langId) const
+ {
+ static const int maxIndex = sizeof(LANG_ENTRIES)/sizeof(IsoLangEntry);
+ int window = mSeedPosition;
+ int guess = mSeedPosition - 1;
+ while (LANG_ENTRIES[guess].mnLang != langId)
+ {
+ window /= 2;
+ if (window == 0) return NULL;
+ guess += (LANG_ENTRIES[guess].mnLang > langId)? -window : window;
+ while (guess >= maxIndex)
+ {
+ window /= 2;
+ guess -= window;
+ assert(window);
+ }
+ }
+ return &LANG_ENTRIES[guess];
+ }
+
+ CLASS_NEW_DELETE;
+
+private:
+ const IsoLangEntry ** mLangLookup[26][26];
+ int mSeedPosition;
+};
+
+} // namespace graphite2
diff --git a/gfx/graphite2/src/inc/opcode_table.h b/gfx/graphite2/src/inc/opcode_table.h
new file mode 100644
index 000000000..50ae1d4d0
--- /dev/null
+++ b/gfx/graphite2/src/inc/opcode_table.h
@@ -0,0 +1,125 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// This file will be pulled into and integrated into a machine implmentation
+// DO NOT build directly
+#pragma once
+
+#define do2(n) do_(n) ,do_(n)
+#define NILOP 0U
+
+// types or parameters are: (.. is inclusive)
+// number - any byte
+// output_class - 0 .. silf.m_nClass
+// input_class - 0 .. silf.m_nClass
+// sattrnum - 0 .. 29 (gr_slatJWidth) , 55 (gr_slatUserDefn)
+// attrid - 0 .. silf.numUser() where sattrnum == 55; 0..silf.m_iMaxComp where sattrnum == 15 otherwise 0
+// gattrnum - 0 .. face->getGlyphFaceCache->numAttrs()
+// gmetric - 0 .. 11 (kgmetDescent)
+// featidx - 0 .. face.numFeatures()
+// level - any byte
+static const opcode_t opcode_table[] =
+{
+ {{do2(nop)}, 0, "NOP"},
+
+ {{do2(push_byte)}, 1, "PUSH_BYTE"}, // number
+ {{do2(push_byte_u)}, 1, "PUSH_BYTE_U"}, // number
+ {{do2(push_short)}, 2, "PUSH_SHORT"}, // number number
+ {{do2(push_short_u)}, 2, "PUSH_SHORT_U"}, // number number
+ {{do2(push_long)}, 4, "PUSH_LONG"}, // number number number number
+
+ {{do2(add)}, 0, "ADD"},
+ {{do2(sub)}, 0, "SUB"},
+ {{do2(mul)}, 0, "MUL"},
+ {{do2(div_)}, 0, "DIV"},
+ {{do2(min_)}, 0, "MIN"},
+ {{do2(max_)}, 0, "MAX"},
+ {{do2(neg)}, 0, "NEG"},
+ {{do2(trunc8)}, 0, "TRUNC8"},
+ {{do2(trunc16)}, 0, "TRUNC16"},
+
+ {{do2(cond)}, 0, "COND"},
+ {{do2(and_)}, 0, "AND"}, // 0x10
+ {{do2(or_)}, 0, "OR"},
+ {{do2(not_)}, 0, "NOT"},
+ {{do2(equal)}, 0, "EQUAL"},
+ {{do2(not_eq_)}, 0, "NOT_EQ"},
+ {{do2(less)}, 0, "LESS"},
+ {{do2(gtr)}, 0, "GTR"},
+ {{do2(less_eq)}, 0, "LESS_EQ"},
+ {{do2(gtr_eq)}, 0, "GTR_EQ"}, // 0x18
+
+ {{do_(next), NILOP}, 0, "NEXT"},
+ {{do_(next_n), NILOP}, 1, "NEXT_N"}, // number <= smap.end - map
+ {{do_(next), NILOP}, 0, "COPY_NEXT"},
+ {{do_(put_glyph_8bit_obs), NILOP}, 1, "PUT_GLYPH_8BIT_OBS"}, // output_class
+ {{do_(put_subs_8bit_obs), NILOP}, 3, "PUT_SUBS_8BIT_OBS"}, // slot input_class output_class
+ {{do_(put_copy), NILOP}, 1, "PUT_COPY"}, // slot
+ {{do_(insert), NILOP}, 0, "INSERT"},
+ {{do_(delete_), NILOP}, 0, "DELETE"}, // 0x20
+ {{do_(assoc), NILOP}, VARARGS, "ASSOC"},
+ {{NILOP ,do_(cntxt_item)}, 2, "CNTXT_ITEM"}, // slot offset
+
+ {{do_(attr_set), NILOP}, 1, "ATTR_SET"}, // sattrnum
+ {{do_(attr_add), NILOP}, 1, "ATTR_ADD"}, // sattrnum
+ {{do_(attr_sub), NILOP}, 1, "ATTR_SUB"}, // sattrnum
+ {{do_(attr_set_slot), NILOP}, 1, "ATTR_SET_SLOT"}, // sattrnum
+ {{do_(iattr_set_slot), NILOP}, 2, "IATTR_SET_SLOT"}, // sattrnum attrid
+ {{do2(push_slot_attr)}, 2, "PUSH_SLOT_ATTR"}, // sattrnum slot
+ {{do2(push_glyph_attr_obs)}, 2, "PUSH_GLYPH_ATTR_OBS"}, // gattrnum slot
+ {{do2(push_glyph_metric)}, 3, "PUSH_GLYPH_METRIC"}, // gmetric slot level
+ {{do2(push_feat)}, 2, "PUSH_FEAT"}, // featidx slot
+
+ {{do2(push_att_to_gattr_obs)}, 2, "PUSH_ATT_TO_GATTR_OBS"}, // gattrnum slot
+ {{do2(push_att_to_glyph_metric)}, 3, "PUSH_ATT_TO_GLYPH_METRIC"}, // gmetric slot level
+ {{do2(push_islot_attr)}, 3, "PUSH_ISLOT_ATTR"}, // sattrnum slot attrid
+
+ {{NILOP,NILOP}, 3, "PUSH_IGLYPH_ATTR"},
+
+ {{do2(pop_ret)}, 0, "POP_RET"}, // 0x30
+ {{do2(ret_zero)}, 0, "RET_ZERO"},
+ {{do2(ret_true)}, 0, "RET_TRUE"},
+
+ {{do_(iattr_set), NILOP}, 2, "IATTR_SET"}, // sattrnum attrid
+ {{do_(iattr_add), NILOP}, 2, "IATTR_ADD"}, // sattrnum attrid
+ {{do_(iattr_sub), NILOP}, 2, "IATTR_SUB"}, // sattrnum attrid
+ {{do2(push_proc_state)}, 1, "PUSH_PROC_STATE"}, // dummy
+ {{do2(push_version)}, 0, "PUSH_VERSION"},
+ {{do_(put_subs), NILOP}, 5, "PUT_SUBS"}, // slot input_class input_class output_class output_class
+ {{NILOP,NILOP}, 0, "PUT_SUBS2"},
+ {{NILOP,NILOP}, 0, "PUT_SUBS3"},
+ {{do_(put_glyph), NILOP}, 2, "PUT_GLYPH"}, // output_class output_class
+ {{do2(push_glyph_attr)}, 3, "PUSH_GLYPH_ATTR"}, // gattrnum gattrnum slot
+ {{do2(push_att_to_glyph_attr)}, 3, "PUSH_ATT_TO_GLYPH_ATTR"}, // gattrnum gattrnum slot
+ {{do2(bor)}, 0, "BITOR"},
+ {{do2(band)}, 0, "BITAND"},
+ {{do2(bnot)}, 0, "BITNOT"}, // 0x40
+ {{do2(setbits)}, 4, "BITSET"},
+ {{do_(set_feat), NILOP}, 2, "SET_FEAT"}, // featidx slot
+ // private opcodes for internal use only, comes after all other on disk opcodes.
+ {{do_(temp_copy), NILOP}, 0, "TEMP_COPY"}
+};
+
diff --git a/gfx/graphite2/src/inc/opcodes.h b/gfx/graphite2/src/inc/opcodes.h
new file mode 100644
index 000000000..3b6dd3fc3
--- /dev/null
+++ b/gfx/graphite2/src/inc/opcodes.h
@@ -0,0 +1,689 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+// This file will be pulled into and integrated into a machine implmentation
+// DO NOT build directly and under no circumstances every #include headers in
+// here or you will break the direct_machine.
+//
+// Implementers' notes
+// ==================
+// You have access to a few primitives and the full C++ code:
+// declare_params(n) Tells the interpreter how many bytes of parameter
+// space to claim for this instruction uses and
+// initialises the param pointer. You *must* before the
+// first use of param.
+// use_params(n) Claim n extra bytes of param space beyond what was
+// claimed using delcare_param.
+// param A const byte pointer for the parameter space claimed by
+// this instruction.
+// binop(op) Implement a binary operation on the stack using the
+// specified C++ operator.
+// NOT_IMPLEMENTED Any instruction body containing this will exit the
+// program with an assertion error. Instructions that are
+// not implemented should also be marked NILOP in the
+// opcodes tables this will cause the code class to spot
+// them in a live code stream and throw a runtime_error
+// instead.
+// push(n) Push the value n onto the stack.
+// pop() Pop the top most value and return it.
+//
+// You have access to the following named fast 'registers':
+// sp = The pointer to the current top of stack, the last value
+// pushed.
+// seg = A reference to the Segment this code is running over.
+// is = The current slot index
+// isb = The original base slot index at the start of this rule
+// isf = The first positioned slot
+// isl = The last positioned slot
+// ip = The current instruction pointer
+// endPos = Position of advance of last cluster
+// dir = writing system directionality of the font
+
+
+// #define NOT_IMPLEMENTED assert(false)
+#define NOT_IMPLEMENTED
+
+#define binop(op) const uint32 a = pop(); *sp = uint32(*sp) op a
+#define sbinop(op) const int32 a = pop(); *sp = int32(*sp) op a
+#define use_params(n) dp += n
+
+#define declare_params(n) const byte * param = dp; \
+ use_params(n);
+
+#define push(n) { *++sp = n; }
+#define pop() (*sp--)
+#define slotat(x) (map[(x)])
+#define DIE { is=seg.last(); status = Machine::died_early; EXIT(1); }
+#define POSITIONED 1
+
+STARTOP(nop)
+ do {} while (0);
+ENDOP
+
+STARTOP(push_byte)
+ declare_params(1);
+ push(int8(*param));
+ENDOP
+
+STARTOP(push_byte_u)
+ declare_params(1);
+ push(uint8(*param));
+ENDOP
+
+STARTOP(push_short)
+ declare_params(2);
+ const int16 r = int16(param[0]) << 8
+ | uint8(param[1]);
+ push(r);
+ENDOP
+
+STARTOP(push_short_u)
+ declare_params(2);
+ const uint16 r = uint16(param[0]) << 8
+ | uint8(param[1]);
+ push(r);
+ENDOP
+
+STARTOP(push_long)
+ declare_params(4);
+ const int32 r = int32(param[0]) << 24
+ | uint32(param[1]) << 16
+ | uint32(param[2]) << 8
+ | uint8(param[3]);
+ push(r);
+ENDOP
+
+STARTOP(add)
+ binop(+);
+ENDOP
+
+STARTOP(sub)
+ binop(-);
+ENDOP
+
+STARTOP(mul)
+ binop(*);
+ENDOP
+
+STARTOP(div_)
+ if (*sp == 0) DIE;
+ sbinop(/);
+ENDOP
+
+STARTOP(min_)
+ const int32 a = pop(), b = *sp;
+ if (a < b) *sp = a;
+ENDOP
+
+STARTOP(max_)
+ const int32 a = pop(), b = *sp;
+ if (a > b) *sp = a;
+ENDOP
+
+STARTOP(neg)
+ *sp = uint32(-int32(*sp));
+ENDOP
+
+STARTOP(trunc8)
+ *sp = uint8(*sp);
+ENDOP
+
+STARTOP(trunc16)
+ *sp = uint16(*sp);
+ENDOP
+
+STARTOP(cond)
+ const uint32 f = pop(), t = pop(), c = pop();
+ push(c ? t : f);
+ENDOP
+
+STARTOP(and_)
+ binop(&&);
+ENDOP
+
+STARTOP(or_)
+ binop(||);
+ENDOP
+
+STARTOP(not_)
+ *sp = !*sp;
+ENDOP
+
+STARTOP(equal)
+ binop(==);
+ENDOP
+
+STARTOP(not_eq_)
+ binop(!=);
+ENDOP
+
+STARTOP(less)
+ sbinop(<);
+ENDOP
+
+STARTOP(gtr)
+ sbinop(>);
+ENDOP
+
+STARTOP(less_eq)
+ sbinop(<=);
+ENDOP
+
+STARTOP(gtr_eq)
+ sbinop(>=);
+ENDOP
+
+STARTOP(next)
+ if (map - &smap[0] >= int(smap.size())) DIE
+ if (is)
+ {
+ if (is == smap.highwater())
+ smap.highpassed(true);
+ is = is->next();
+ }
+ ++map;
+ENDOP
+
+STARTOP(next_n)
+ use_params(1);
+ NOT_IMPLEMENTED;
+ //declare_params(1);
+ //const size_t num = uint8(*param);
+ENDOP
+
+//STARTOP(copy_next)
+// if (is) is = is->next();
+// ++map;
+// ENDOP
+
+STARTOP(put_glyph_8bit_obs)
+ declare_params(1);
+ const unsigned int output_class = uint8(*param);
+ is->setGlyph(&seg, seg.getClassGlyph(output_class, 0));
+ENDOP
+
+STARTOP(put_subs_8bit_obs)
+ declare_params(3);
+ const int slot_ref = int8(param[0]);
+ const unsigned int input_class = uint8(param[1]),
+ output_class = uint8(param[2]);
+ uint16 index;
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ index = seg.findClassIndex(input_class, slot->gid());
+ is->setGlyph(&seg, seg.getClassGlyph(output_class, index));
+ }
+ENDOP
+
+STARTOP(put_copy)
+ declare_params(1);
+ const int slot_ref = int8(*param);
+ if (is && !is->isDeleted())
+ {
+ slotref ref = slotat(slot_ref);
+ if (ref && ref != is)
+ {
+ int16 *tempUserAttrs = is->userAttrs();
+ if (is->attachedTo() || is->firstChild()) DIE
+ Slot *prev = is->prev();
+ Slot *next = is->next();
+ memcpy(tempUserAttrs, ref->userAttrs(), seg.numAttrs() * sizeof(uint16));
+ memcpy(is, ref, sizeof(Slot));
+ is->firstChild(NULL);
+ is->nextSibling(NULL);
+ is->userAttrs(tempUserAttrs);
+ is->next(next);
+ is->prev(prev);
+ if (is->attachedTo())
+ is->attachedTo()->child(is);
+ }
+ is->markCopied(false);
+ is->markDeleted(false);
+ }
+ENDOP
+
+STARTOP(insert)
+ if (smap.decMax() <= 0) DIE;
+ Slot *newSlot = seg.newSlot();
+ if (!newSlot) DIE;
+ Slot *iss = is;
+ while (iss && iss->isDeleted()) iss = iss->next();
+ if (!iss)
+ {
+ if (seg.last())
+ {
+ seg.last()->next(newSlot);
+ newSlot->prev(seg.last());
+ newSlot->before(seg.last()->before());
+ seg.last(newSlot);
+ }
+ else
+ {
+ seg.first(newSlot);
+ seg.last(newSlot);
+ }
+ }
+ else if (iss->prev())
+ {
+ iss->prev()->next(newSlot);
+ newSlot->prev(iss->prev());
+ newSlot->before(iss->prev()->after());
+ }
+ else
+ {
+ newSlot->prev(NULL);
+ newSlot->before(iss->before());
+ seg.first(newSlot);
+ }
+ newSlot->next(iss);
+ if (iss)
+ {
+ iss->prev(newSlot);
+ newSlot->originate(iss->original());
+ newSlot->after(iss->before());
+ }
+ else if (newSlot->prev())
+ {
+ newSlot->originate(newSlot->prev()->original());
+ newSlot->after(newSlot->prev()->after());
+ }
+ else
+ {
+ newSlot->originate(seg.defaultOriginal());
+ }
+ if (is == smap.highwater())
+ smap.highpassed(false);
+ is = newSlot;
+ seg.extendLength(1);
+ if (map != &smap[-1])
+ --map;
+ENDOP
+
+STARTOP(delete_)
+ if (!is || is->isDeleted()) DIE
+ is->markDeleted(true);
+ if (is->prev())
+ is->prev()->next(is->next());
+ else
+ seg.first(is->next());
+
+ if (is->next())
+ is->next()->prev(is->prev());
+ else
+ seg.last(is->prev());
+
+ if (is == smap.highwater())
+ smap.highwater(is->next());
+ if (is->prev())
+ is = is->prev();
+ seg.extendLength(-1);
+ENDOP
+
+STARTOP(assoc)
+ declare_params(1);
+ unsigned int num = uint8(*param);
+ const int8 * assocs = reinterpret_cast<const int8 *>(param+1);
+ use_params(num);
+ int max = -1;
+ int min = -1;
+
+ while (num-- > 0)
+ {
+ int sr = *assocs++;
+ slotref ts = slotat(sr);
+ if (ts && (min == -1 || ts->before() < min)) min = ts->before();
+ if (ts && ts->after() > max) max = ts->after();
+ }
+ if (min > -1) // implies max > -1
+ {
+ is->before(min);
+ is->after(max);
+ }
+ENDOP
+
+STARTOP(cntxt_item)
+ // It turns out this is a cunningly disguised condition forward jump.
+ declare_params(3);
+ const int is_arg = int8(param[0]);
+ const size_t iskip = uint8(param[1]),
+ dskip = uint8(param[2]);
+
+ if (mapb + is_arg != map)
+ {
+ ip += iskip;
+ dp += dskip;
+ push(true);
+ }
+ENDOP
+
+STARTOP(attr_set)
+ declare_params(1);
+ const attrCode slat = attrCode(uint8(*param));
+ const int val = int(pop());
+ is->setAttr(&seg, slat, 0, val, smap);
+ENDOP
+
+STARTOP(attr_add)
+ declare_params(1);
+ const attrCode slat = attrCode(uint8(*param));
+ const int val = int(pop());
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ int res = is->getAttr(&seg, slat, 0);
+ is->setAttr(&seg, slat, 0, val + res, smap);
+ENDOP
+
+STARTOP(attr_sub)
+ declare_params(1);
+ const attrCode slat = attrCode(uint8(*param));
+ const int val = int(pop());
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ int res = is->getAttr(&seg, slat, 0);
+ is->setAttr(&seg, slat, 0, res - val, smap);
+ENDOP
+
+STARTOP(attr_set_slot)
+ declare_params(1);
+ const attrCode slat = attrCode(uint8(*param));
+ const int offset = (map - smap.begin())*int(slat == gr_slatAttTo);
+ const int val = int(pop()) + offset;
+ is->setAttr(&seg, slat, offset, val, smap);
+ENDOP
+
+STARTOP(iattr_set_slot)
+ declare_params(2);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const size_t idx = uint8(param[1]);
+ const int val = int(pop()) + (map - smap.begin())*int(slat == gr_slatAttTo);
+ is->setAttr(&seg, slat, idx, val, smap);
+ENDOP
+
+STARTOP(push_slot_attr)
+ declare_params(2);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const int slot_ref = int8(param[1]);
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ int res = slot->getAttr(&seg, slat, 0);
+ push(res);
+ }
+ENDOP
+
+STARTOP(push_glyph_attr_obs)
+ declare_params(2);
+ const unsigned int glyph_attr = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ push(int32(seg.glyphAttr(slot->gid(), glyph_attr)));
+ENDOP
+
+STARTOP(push_glyph_metric)
+ declare_params(3);
+ const unsigned int glyph_attr = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ const signed int attr_level = uint8(param[2]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ push(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir));
+ENDOP
+
+STARTOP(push_feat)
+ declare_params(2);
+ const unsigned int feat = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ uint8 fid = seg.charinfo(slot->original())->fid();
+ push(seg.getFeature(fid, feat));
+ }
+ENDOP
+
+STARTOP(push_att_to_gattr_obs)
+ declare_params(2);
+ const unsigned int glyph_attr = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ slotref att = slot->attachedTo();
+ if (att) slot = att;
+ push(int32(seg.glyphAttr(slot->gid(), glyph_attr)));
+ }
+ENDOP
+
+STARTOP(push_att_to_glyph_metric)
+ declare_params(3);
+ const unsigned int glyph_attr = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ const signed int attr_level = uint8(param[2]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ slotref att = slot->attachedTo();
+ if (att) slot = att;
+ push(int32(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir)));
+ }
+ENDOP
+
+STARTOP(push_islot_attr)
+ declare_params(3);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const int slot_ref = int8(param[1]),
+ idx = uint8(param[2]);
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ int res = slot->getAttr(&seg, slat, idx);
+ push(res);
+ }
+ENDOP
+
+#if 0
+STARTOP(push_iglyph_attr) // not implemented
+ NOT_IMPLEMENTED;
+ENDOP
+#endif
+
+STARTOP(pop_ret)
+ const uint32 ret = pop();
+ EXIT(ret);
+ENDOP
+
+STARTOP(ret_zero)
+ EXIT(0);
+ENDOP
+
+STARTOP(ret_true)
+ EXIT(1);
+ENDOP
+
+STARTOP(iattr_set)
+ declare_params(2);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const size_t idx = uint8(param[1]);
+ const int val = int(pop());
+ is->setAttr(&seg, slat, idx, val, smap);
+ENDOP
+
+STARTOP(iattr_add)
+ declare_params(2);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const size_t idx = uint8(param[1]);
+ const int val = int(pop());
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ int res = is->getAttr(&seg, slat, idx);
+ is->setAttr(&seg, slat, idx, val + res, smap);
+ENDOP
+
+STARTOP(iattr_sub)
+ declare_params(2);
+ const attrCode slat = attrCode(uint8(param[0]));
+ const size_t idx = uint8(param[1]);
+ const int val = int(pop());
+ if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0)
+ {
+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
+ flags |= POSITIONED;
+ }
+ int res = is->getAttr(&seg, slat, idx);
+ is->setAttr(&seg, slat, idx, res - val, smap);
+ENDOP
+
+STARTOP(push_proc_state)
+ use_params(1);
+ push(1);
+ENDOP
+
+STARTOP(push_version)
+ push(0x00030000);
+ENDOP
+
+STARTOP(put_subs)
+ declare_params(5);
+ const int slot_ref = int8(param[0]);
+ const unsigned int input_class = uint8(param[1]) << 8
+ | uint8(param[2]);
+ const unsigned int output_class = uint8(param[3]) << 8
+ | uint8(param[4]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ int index = seg.findClassIndex(input_class, slot->gid());
+ is->setGlyph(&seg, seg.getClassGlyph(output_class, index));
+ }
+ENDOP
+
+#if 0
+STARTOP(put_subs2) // not implemented
+ NOT_IMPLEMENTED;
+ENDOP
+
+STARTOP(put_subs3) // not implemented
+ NOT_IMPLEMENTED;
+ENDOP
+#endif
+
+STARTOP(put_glyph)
+ declare_params(2);
+ const unsigned int output_class = uint8(param[0]) << 8
+ | uint8(param[1]);
+ is->setGlyph(&seg, seg.getClassGlyph(output_class, 0));
+ENDOP
+
+STARTOP(push_glyph_attr)
+ declare_params(3);
+ const unsigned int glyph_attr = uint8(param[0]) << 8
+ | uint8(param[1]);
+ const int slot_ref = int8(param[2]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ push(int32(seg.glyphAttr(slot->gid(), glyph_attr)));
+ENDOP
+
+STARTOP(push_att_to_glyph_attr)
+ declare_params(3);
+ const unsigned int glyph_attr = uint8(param[0]) << 8
+ | uint8(param[1]);
+ const int slot_ref = int8(param[2]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ slotref att = slot->attachedTo();
+ if (att) slot = att;
+ push(int32(seg.glyphAttr(slot->gid(), glyph_attr)));
+ }
+ENDOP
+
+STARTOP(temp_copy)
+ slotref newSlot = seg.newSlot();
+ if (!newSlot || !is) DIE;
+ int16 *tempUserAttrs = newSlot->userAttrs();
+ memcpy(newSlot, is, sizeof(Slot));
+ memcpy(tempUserAttrs, is->userAttrs(), seg.numAttrs() * sizeof(uint16));
+ newSlot->userAttrs(tempUserAttrs);
+ newSlot->markCopied(true);
+ *map = newSlot;
+ENDOP
+
+STARTOP(band)
+ binop(&);
+ENDOP
+
+STARTOP(bor)
+ binop(|);
+ENDOP
+
+STARTOP(bnot)
+ *sp = ~*sp;
+ENDOP
+
+STARTOP(setbits)
+ declare_params(4);
+ const uint16 m = uint16(param[0]) << 8
+ | uint8(param[1]);
+ const uint16 v = uint16(param[2]) << 8
+ | uint8(param[3]);
+ *sp = ((*sp) & ~m) | v;
+ENDOP
+
+STARTOP(set_feat)
+ declare_params(2);
+ const unsigned int feat = uint8(param[0]);
+ const int slot_ref = int8(param[1]);
+ slotref slot = slotat(slot_ref);
+ if (slot)
+ {
+ uint8 fid = seg.charinfo(slot->original())->fid();
+ seg.setFeature(fid, feat, pop());
+ }
+ENDOP
+
diff --git a/gfx/graphite2/src/json.cpp b/gfx/graphite2/src/json.cpp
new file mode 100644
index 000000000..d6e5518a1
--- /dev/null
+++ b/gfx/graphite2/src/json.cpp
@@ -0,0 +1,140 @@
+/* GRAPHITE2 LICENSING
+
+ Copyright 2011, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+// JSON debug logging
+// Author: Tim Eves
+
+#if !defined GRAPHITE2_NTRACING
+
+#include <cstdio>
+#include <limits>
+#include "inc/json.h"
+
+using namespace graphite2;
+
+namespace
+{
+ enum
+ {
+ seq = ',',
+ obj='}', member=':', empty_obj='{',
+ arr=']', empty_arr='['
+ };
+}
+
+const json::_null_t json::null = {};
+
+inline
+void json::context(const char current) throw()
+{
+ fprintf(_stream, "%c", *_context);
+ indent();
+ *_context = current;
+}
+
+
+void json::indent(const int d) throw()
+{
+ if (*_context == member || (_flatten && _flatten < _context))
+ fputc(' ', _stream);
+ else
+ fprintf(_stream, "\n%*s", 4*int(_context - _contexts + d), "");
+}
+
+
+inline
+void json::push_context(const char prefix, const char suffix) throw()
+{
+ assert(_context - _contexts < ptrdiff_t(sizeof _contexts));
+
+ if (_context == _contexts)
+ *_context = suffix;
+ else
+ context(suffix);
+ *++_context = prefix;
+}
+
+
+void json::pop_context() throw()
+{
+ assert(_context > _contexts);
+
+ if (*_context == seq) indent(-1);
+ else fputc(*_context, _stream);
+
+ fputc(*--_context, _stream);
+ if (_context == _contexts) fputc('\n', _stream);
+ fflush(_stream);
+
+ if (_flatten >= _context) _flatten = 0;
+ *_context = seq;
+}
+
+
+// These four functions cannot be inlined as pointers to these
+// functions are needed for operator << (_context_t) to work.
+void json::flat(json & j) throw() { if (!j._flatten) j._flatten = j._context; }
+void json::close(json & j) throw() { j.pop_context(); }
+void json::object(json & j) throw() { j.push_context('{', '}'); }
+void json::array(json & j) throw() { j.push_context('[', ']'); }
+void json::item(json & j) throw()
+{
+ while (j._context > j._contexts+1 && j._context[-1] != arr)
+ j.pop_context();
+}
+
+
+json & json::operator << (json::string s) throw()
+{
+ const char ctxt = _context[-1] == obj ? *_context == member ? seq : member : seq;
+ context(ctxt);
+ fprintf(_stream, "\"%s\"", s);
+ if (ctxt == member) fputc(' ', _stream);
+
+ return *this;
+}
+
+json & json::operator << (json::number f) throw()
+{
+ context(seq);
+ if (std::numeric_limits<json::number>::infinity() == f)
+ fputs("Infinity", _stream);
+ else if (-std::numeric_limits<json::number>::infinity() == f)
+ fputs("-Infinity", _stream);
+ else if (std::numeric_limits<json::number>::quiet_NaN() == f ||
+ std::numeric_limits<json::number>::signaling_NaN() == f)
+ fputs("NaN", _stream);
+ else
+ fprintf(_stream, "%g", f);
+ return *this;
+}
+json & json::operator << (json::integer d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; }
+json & json::operator << (long unsigned d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; }
+json & json::operator << (json::boolean b) throw() { context(seq); fputs(b ? "true" : "false", _stream); return *this; }
+json & json::operator << (json::_null_t) throw() { context(seq); fputs("null",_stream); return *this; }
+
+#endif
+
diff --git a/gfx/graphite2/src/moz.build b/gfx/graphite2/src/moz.build
new file mode 100644
index 000000000..d918f8ee9
--- /dev/null
+++ b/gfx/graphite2/src/moz.build
@@ -0,0 +1,85 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# This should contain all of the _PUBLIC_HEADERS from files.mk
+EXPORTS.graphite2 += [
+ '../include/graphite2/Font.h',
+ '../include/graphite2/Log.h',
+ '../include/graphite2/Segment.h',
+ '../include/graphite2/Types.h',
+]
+
+if CONFIG['GNU_CC']:
+ UNIFIED_SOURCES += [
+ 'direct_machine.cpp'
+ ]
+else:
+ UNIFIED_SOURCES += [
+ 'call_machine.cpp'
+ ]
+
+# This should contain all of the _SOURCES from files.mk, except *_machine.cpp
+UNIFIED_SOURCES += [
+ 'Bidi.cpp',
+ 'CachedFace.cpp',
+ 'CmapCache.cpp',
+ 'Code.cpp',
+ 'Collider.cpp',
+ 'Decompressor.cpp',
+ 'Face.cpp',
+ 'FeatureMap.cpp',
+ 'FileFace.cpp',
+ 'Font.cpp',
+ 'GlyphCache.cpp',
+ 'GlyphFace.cpp',
+ 'gr_char_info.cpp',
+ 'gr_face.cpp',
+ 'gr_features.cpp',
+ 'gr_font.cpp',
+ 'gr_logging.cpp',
+ 'gr_segment.cpp',
+ 'gr_slot.cpp',
+ 'Intervals.cpp',
+ 'json.cpp',
+ 'Justifier.cpp',
+ 'Pass.cpp',
+ 'Position.cpp',
+ 'SegCache.cpp',
+ 'SegCacheEntry.cpp',
+ 'SegCacheStore.cpp',
+ 'Segment.cpp',
+ 'Silf.cpp',
+ 'Slot.cpp',
+ 'Sparse.cpp',
+ 'TtfUtil.cpp',
+ 'UtfCodec.cpp',
+]
+
+# Excluded from UNIFIED_SOURCES because <cmath> from other files breaks it,
+# see bug 1272647.
+SOURCES += [
+ 'NameTable.cpp',
+]
+
+# tell graphite2 not to export symbols, we'll be linking it directly with
+# thebes
+DEFINES['GRAPHITE2_STATIC'] = True
+
+# We allow warnings for third-party code that can be updated from upstream.
+ALLOW_COMPILER_WARNINGS = True
+
+FINAL_LIBRARY = 'gkmedias'
+
+DEFINES['PACKAGE_VERSION'] = '"moz"'
+DEFINES['PACKAGE_BUGREPORT'] = '"http://bugzilla.mozilla.org/"'
+
+# disable features we don't need in the graphite2 code, to reduce code size
+for var in ('GRAPHITE2_NFILEFACE', 'GRAPHITE2_NTRACING', 'GRAPHITE2_NSEGCACHE'):
+ DEFINES[var] = True
+
+# provide a custom header that overrides malloc() and friends,
+# to ensure safe OOM handling
+DEFINES['GRAPHITE2_CUSTOM_HEADER'] = '"MozGrMalloc.h"'