diff options
Diffstat (limited to 'modules/freetype2/src/truetype')
21 files changed, 2835 insertions, 1154 deletions
diff --git a/modules/freetype2/src/truetype/Jamfile b/modules/freetype2/src/truetype/Jamfile index ecbb2dbdd..e321fba14 100644 --- a/modules/freetype2/src/truetype/Jamfile +++ b/modules/freetype2/src/truetype/Jamfile @@ -1,6 +1,6 @@ # FreeType 2 src/truetype Jamfile # -# Copyright 2001-2016 by +# Copyright 2001-2018 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/modules/freetype2/src/truetype/module.mk b/modules/freetype2/src/truetype/module.mk index 80c9832b2..16bc9c8b2 100644 --- a/modules/freetype2/src/truetype/module.mk +++ b/modules/freetype2/src/truetype/module.mk @@ -3,7 +3,7 @@ # -# Copyright 1996-2016 by +# Copyright 1996-2018 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/modules/freetype2/src/truetype/rules.mk b/modules/freetype2/src/truetype/rules.mk index 3bf7cf770..e16113f12 100644 --- a/modules/freetype2/src/truetype/rules.mk +++ b/modules/freetype2/src/truetype/rules.mk @@ -3,7 +3,7 @@ # -# Copyright 1996-2016 by +# Copyright 1996-2018 by # David Turner, Robert Wilhelm, and Werner Lemberg. # # This file is part of the FreeType project, and may only be used, modified, diff --git a/modules/freetype2/src/truetype/truetype.c b/modules/freetype2/src/truetype/truetype.c index 23e2ea00a..484370975 100644 --- a/modules/freetype2/src/truetype/truetype.c +++ b/modules/freetype2/src/truetype/truetype.c @@ -4,7 +4,7 @@ /* */ /* FreeType TrueType driver component (body only). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -17,22 +17,16 @@ #define FT_MAKE_OPTION_SINGLE_OBJECT - #include <ft2build.h> -#include "ttpic.c" + #include "ttdriver.c" /* driver interface */ -#include "ttpload.c" /* tables loader */ #include "ttgload.c" /* glyph loader */ -#include "ttobjs.c" /* object manager */ - -#ifdef TT_USE_BYTECODE_INTERPRETER +#include "ttgxvar.c" /* gx distortable font */ #include "ttinterp.c" +#include "ttobjs.c" /* object manager */ +#include "ttpic.c" +#include "ttpload.c" /* tables loader */ #include "ttsubpix.c" -#endif - -#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT -#include "ttgxvar.c" /* gx distortable font */ -#endif /* END */ diff --git a/modules/freetype2/src/truetype/ttdriver.c b/modules/freetype2/src/truetype/ttdriver.c index af8b205e3..820cafbb8 100644 --- a/modules/freetype2/src/truetype/ttdriver.c +++ b/modules/freetype2/src/truetype/ttdriver.c @@ -4,7 +4,7 @@ /* */ /* TrueType font driver implementation (body). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -31,7 +31,7 @@ #include FT_SERVICE_TRUETYPE_ENGINE_H #include FT_SERVICE_TRUETYPE_GLYF_H #include FT_SERVICE_PROPERTIES_H -#include FT_TRUETYPE_DRIVER_H +#include FT_DRIVER_H #include "ttdriver.h" #include "ttgload.h" @@ -233,8 +233,8 @@ { #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* no fast retrieval for blended MM fonts without VVAR table */ - if ( !face->is_default_instance && - !( face->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) ) + if ( ( FT_IS_NAMED_INSTANCE( ttface ) || FT_IS_VARIATION( ttface ) ) && + !( face->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) ) return FT_THROW( Unimplemented_Feature ); #endif @@ -253,8 +253,8 @@ { #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* no fast retrieval for blended MM fonts without HVAR table */ - if ( !face->is_default_instance && - !( face->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) ) + if ( ( FT_IS_NAMED_INSTANCE( ttface ) || FT_IS_VARIATION( ttface ) ) && + !( face->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) ) return FT_THROW( Unimplemented_Feature ); #endif @@ -304,15 +304,17 @@ /* use the scaled metrics, even when tt_size_reset fails */ FT_Select_Metrics( size->face, strike_index ); - tt_size_reset( ttsize ); /* ignore return value */ + tt_size_reset( ttsize, 0 ); /* ignore return value */ } else { - SFNT_Service sfnt = (SFNT_Service)ttface->sfnt; - FT_Size_Metrics* metrics = &size->metrics; + SFNT_Service sfnt = (SFNT_Service)ttface->sfnt; + FT_Size_Metrics* size_metrics = &size->metrics; - error = sfnt->load_strike_metrics( ttface, strike_index, metrics ); + error = sfnt->load_strike_metrics( ttface, + strike_index, + size_metrics ); if ( error ) ttsize->strike_index = 0xFFFFFFFFUL; } @@ -354,15 +356,16 @@ if ( FT_IS_SCALABLE( size->face ) ) { - error = tt_size_reset( ttsize ); - ttsize->root.metrics = ttsize->metrics; + error = tt_size_reset( ttsize, 0 ); #ifdef TT_USE_BYTECODE_INTERPRETER /* for the `MPS' bytecode instruction we need the point size */ + if ( !error ) { - FT_UInt resolution = ttsize->metrics.x_ppem > ttsize->metrics.y_ppem - ? req->horiResolution - : req->vertResolution; + FT_UInt resolution = + ttsize->metrics->x_ppem > ttsize->metrics->y_ppem + ? req->horiResolution + : req->vertResolution; /* if we don't have a resolution value, assume 72dpi */ @@ -456,6 +459,11 @@ load_flags |= FT_LOAD_NO_HINTING; } + /* use hinted metrics only if we load a glyph with hinting */ + size->metrics = ( load_flags & FT_LOAD_NO_HINTING ) + ? &ttsize->metrics + : &size->hinted_metrics; + /* now load the glyph outline if necessary */ error = TT_Load_Glyph( size, slot, glyph_index, load_flags ); @@ -490,6 +498,7 @@ (FT_Get_MM_Var_Func) TT_Get_MM_Var, /* get_mm_var */ (FT_Set_Var_Design_Func)TT_Set_Var_Design, /* set_var_design */ (FT_Get_Var_Design_Func)TT_Get_Var_Design, /* get_var_design */ + (FT_Set_Instance_Func) TT_Set_Named_Instance, /* set_instance */ (FT_Get_Var_Blend_Func) tt_get_var_blend, /* get_var_blend */ (FT_Done_Blend_Func) tt_done_blend /* done_blend */ @@ -502,12 +511,12 @@ (FT_LSB_Adjust_Func) NULL, /* lsb_adjust */ (FT_RSB_Adjust_Func) NULL, /* rsb_adjust */ - (FT_VAdvance_Adjust_Func)NULL, /* vadvance_adjust */ + (FT_VAdvance_Adjust_Func)tt_vadvance_adjust, /* vadvance_adjust */ (FT_TSB_Adjust_Func) NULL, /* tsb_adjust */ (FT_BSB_Adjust_Func) NULL, /* bsb_adjust */ (FT_VOrg_Adjust_Func) NULL, /* vorg_adjust */ - (FT_Metrics_Adjust_Func) NULL /* metrics_adjust */ + (FT_Metrics_Adjust_Func) tt_apply_mvar /* metrics_adjust */ ) #endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ diff --git a/modules/freetype2/src/truetype/ttdriver.h b/modules/freetype2/src/truetype/ttdriver.h index 74392bbd0..707aa68ed 100644 --- a/modules/freetype2/src/truetype/ttdriver.h +++ b/modules/freetype2/src/truetype/ttdriver.h @@ -4,7 +4,7 @@ /* */ /* High-level TrueType driver interface (specification). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/tterrors.h b/modules/freetype2/src/truetype/tterrors.h index 895989f5f..88bca3a04 100644 --- a/modules/freetype2/src/truetype/tterrors.h +++ b/modules/freetype2/src/truetype/tterrors.h @@ -4,7 +4,7 @@ /* */ /* TrueType error codes (specification only). */ /* */ -/* Copyright 2001-2016 by */ +/* Copyright 2001-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/ttgload.c b/modules/freetype2/src/truetype/ttgload.c index a0cdfc890..39d9c3f73 100644 --- a/modules/freetype2/src/truetype/ttgload.c +++ b/modules/freetype2/src/truetype/ttgload.c @@ -4,7 +4,7 @@ /* */ /* TrueType Glyph Loader (body). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -18,12 +18,13 @@ #include <ft2build.h> #include FT_INTERNAL_DEBUG_H +#include FT_CONFIG_CONFIG_H #include FT_INTERNAL_CALC_H #include FT_INTERNAL_STREAM_H #include FT_INTERNAL_SFNT_H #include FT_TRUETYPE_TAGS_H #include FT_OUTLINE_H -#include FT_TRUETYPE_DRIVER_H +#include FT_DRIVER_H #include FT_LIST_H #include "ttgload.h" @@ -86,7 +87,7 @@ /*************************************************************************/ /* */ /* Return the vertical metrics in font units for a given glyph. */ - /* See macro `TT_LOADER_SET_PP' below for explanations. */ + /* See function `tt_loader_set_pp' below for explanations. */ /* */ FT_LOCAL_DEF( void ) TT_Get_VMetrics( TT_Face face, @@ -162,7 +163,7 @@ /* This may not be the right place for this, but it works... */ /* Note that we have to unconditionally load the tweaks since */ /* it is possible that glyphs individually switch ClearType's */ - /* backwards compatibility mode on and off. */ + /* backward compatibility mode on and off. */ sph_set_tweaks( loader, glyph_index ); } #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ @@ -194,39 +195,39 @@ if ( face->root.internal->incremental_interface && face->root.internal->incremental_interface->funcs->get_glyph_metrics ) { - FT_Incremental_MetricsRec metrics; + FT_Incremental_MetricsRec incr_metrics; FT_Error error; - metrics.bearing_x = loader->left_bearing; - metrics.bearing_y = 0; - metrics.advance = loader->advance; - metrics.advance_v = 0; + incr_metrics.bearing_x = loader->left_bearing; + incr_metrics.bearing_y = 0; + incr_metrics.advance = loader->advance; + incr_metrics.advance_v = 0; error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( face->root.internal->incremental_interface->object, - glyph_index, FALSE, &metrics ); + glyph_index, FALSE, &incr_metrics ); if ( error ) goto Exit; - left_bearing = (FT_Short)metrics.bearing_x; - advance_width = (FT_UShort)metrics.advance; + left_bearing = (FT_Short)incr_metrics.bearing_x; + advance_width = (FT_UShort)incr_metrics.advance; #if 0 /* GWW: Do I do the same for vertical metrics? */ - metrics.bearing_x = 0; - metrics.bearing_y = loader->top_bearing; - metrics.advance = loader->vadvance; + incr_metrics.bearing_x = 0; + incr_metrics.bearing_y = loader->top_bearing; + incr_metrics.advance = loader->vadvance; error = face->root.internal->incremental_interface->funcs->get_glyph_metrics( face->root.internal->incremental_interface->object, - glyph_index, TRUE, &metrics ); + glyph_index, TRUE, &incr_metrics ); if ( error ) goto Exit; - top_bearing = (FT_Short)metrics.bearing_y; - advance_height = (FT_UShort)metrics.advance; + top_bearing = (FT_Short)incr_metrics.bearing_y; + advance_height = (FT_UShort)incr_metrics.advance; #endif /* 0 */ @@ -332,7 +333,6 @@ FT_Outline* outline; FT_UShort n_ins; FT_Int n_points; - FT_ULong tmp; FT_Byte *flag, *flag_limit; FT_Byte c, count; @@ -398,18 +398,21 @@ FT_TRACE5(( " Instructions size: %u\n", n_ins )); - /* check it */ - if ( ( limit - p ) < n_ins ) - { - FT_TRACE0(( "TT_Load_Simple_Glyph: instruction count mismatch\n" )); - error = FT_THROW( Too_Many_Hints ); - goto Fail; - } - #ifdef TT_USE_BYTECODE_INTERPRETER if ( IS_HINTED( load->load_flags ) ) { + FT_ULong tmp; + + + /* check instructions size */ + if ( ( limit - p ) < n_ins ) + { + FT_TRACE1(( "TT_Load_Simple_Glyph: instruction count mismatch\n" )); + error = FT_THROW( Too_Many_Hints ); + goto Fail; + } + /* we don't trust `maxSizeOfInstructions' in the `maxp' table */ /* and thus update the bytecode array size by ourselves */ @@ -661,7 +664,52 @@ } while ( subglyph->flags & MORE_COMPONENTS ); gloader->current.num_subglyphs = num_subglyphs; - FT_TRACE5(( " %d components\n", num_subglyphs )); + FT_TRACE5(( " %d component%s\n", + num_subglyphs, + num_subglyphs > 1 ? "s" : "" )); + +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_UInt i; + + + subglyph = gloader->current.subglyphs; + + for ( i = 0; i < num_subglyphs; i++ ) + { + if ( num_subglyphs > 1 ) + FT_TRACE7(( " subglyph %d:\n", i )); + + FT_TRACE7(( " glyph index: %d\n", subglyph->index )); + + if ( subglyph->flags & ARGS_ARE_XY_VALUES ) + FT_TRACE7(( " offset: x=%d, y=%d\n", + subglyph->arg1, + subglyph->arg2 )); + else + FT_TRACE7(( " matching points: base=%d, component=%d\n", + subglyph->arg1, + subglyph->arg2 )); + + if ( subglyph->flags & WE_HAVE_A_SCALE ) + FT_TRACE7(( " scaling: %f\n", + subglyph->transform.xx / 65536.0 )); + else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) + FT_TRACE7(( " scaling: x=%f, y=%f\n", + subglyph->transform.xx / 65536.0, + subglyph->transform.yy / 65536.0 )); + else if ( subglyph->flags & WE_HAVE_A_2X2 ) + FT_TRACE7(( " scaling: xx=%f, yx=%f\n" + " xy=%f, yy=%f\n", + subglyph->transform.xx / 65536.0, + subglyph->transform.yx / 65536.0, + subglyph->transform.xy / 65536.0, + subglyph->transform.yy / 65536.0 )); + + subglyph++; + } + } +#endif /* FT_DEBUG_LEVEL_TRACE */ #ifdef TT_USE_BYTECODE_INTERPRETER @@ -753,7 +801,7 @@ { FT_TRACE1(( "TT_Hint_Glyph: too long instructions" )); FT_TRACE1(( " (0x%lx byte) is truncated\n", - loader->glyph->control_len )); + loader->glyph->control_len )); } n_ins = loader->glyph->control_len; @@ -775,8 +823,8 @@ } else { - loader->exec->metrics.x_scale = loader->size->metrics.x_scale; - loader->exec->metrics.y_scale = loader->size->metrics.y_scale; + loader->exec->metrics.x_scale = loader->size->metrics->x_scale; + loader->exec->metrics.y_scale = loader->size->metrics->y_scale; } #endif @@ -818,11 +866,11 @@ #endif #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* Save possibly modified glyph phantom points unless in v40 backwards */ + /* Save possibly modified glyph phantom points unless in v40 backward */ /* compatibility mode, where no movement on the x axis means no reason */ /* to change bearings or advance widths. */ if ( !( driver->interpreter_version == TT_INTERPRETER_VERSION_40 && - !loader->exec->backwards_compatibility ) ) + loader->exec->backward_compatibility ) ) { #endif loader->pp1 = zone->cur[zone->n_points - 4]; @@ -886,7 +934,8 @@ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT - if ( loader->face->doblend && !loader->face->is_default_instance ) + if ( FT_IS_NAMED_INSTANCE( FT_FACE( loader->face ) ) || + FT_IS_VARIATION( FT_FACE( loader->face ) ) ) { /* Deltas apply to the unscaled data. */ error = TT_Vary_Apply_Glyph_Deltas( loader->face, @@ -923,7 +972,7 @@ TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( face ); FT_String* family = face->root.family_name; - FT_UInt ppem = loader->size->metrics.x_ppem; + FT_UInt ppem = loader->size->metrics->x_ppem; FT_String* style = face->root.style_name; FT_UInt x_scale_factor = 1000; #endif @@ -952,9 +1001,9 @@ if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 || x_scale_factor != 1000 ) { - x_scale = FT_MulDiv( loader->size->metrics.x_scale, + x_scale = FT_MulDiv( loader->size->metrics->x_scale, (FT_Long)x_scale_factor, 1000 ); - y_scale = loader->size->metrics.y_scale; + y_scale = loader->size->metrics->y_scale; /* compensate for any scaling by de/emboldening; */ /* the amount was determined via experimentation */ @@ -974,8 +1023,8 @@ /* scale the glyph */ if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) { - x_scale = loader->size->metrics.x_scale; - y_scale = loader->size->metrics.y_scale; + x_scale = loader->size->metrics->x_scale; + y_scale = loader->size->metrics->y_scale; do_scale = TRUE; } @@ -988,9 +1037,24 @@ vec->x = FT_MulFix( vec->x, x_scale ); vec->y = FT_MulFix( vec->y, y_scale ); } + } +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* if we have a HVAR table, `pp1' and/or `pp2' are already adjusted */ + if ( !( loader->face->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) || + !IS_HINTED( loader->load_flags ) ) +#endif + { loader->pp1 = outline->points[n_points - 4]; loader->pp2 = outline->points[n_points - 3]; + } + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* if we have a VVAR table, `pp3' and/or `pp4' are already adjusted */ + if ( !( loader->face->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) || + !IS_HINTED( loader->load_flags ) ) +#endif + { loader->pp3 = outline->points[n_points - 2]; loader->pp4 = outline->points[n_points - 1]; } @@ -1133,8 +1197,8 @@ if ( !( loader->load_flags & FT_LOAD_NO_SCALE ) ) { - FT_Fixed x_scale = loader->size->metrics.x_scale; - FT_Fixed y_scale = loader->size->metrics.y_scale; + FT_Fixed x_scale = loader->size->metrics->x_scale; + FT_Fixed y_scale = loader->size->metrics->y_scale; x = FT_MulFix( x, x_scale ); @@ -1142,8 +1206,28 @@ if ( subglyph->flags & ROUND_XY_TO_GRID ) { - x = FT_PIX_ROUND( x ); - y = FT_PIX_ROUND( y ); + TT_Face face = loader->face; + TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( face ); + + + if ( IS_HINTED( loader->load_flags ) ) + { + /* + * We round the horizontal offset only if there is hinting along + * the x axis; this corresponds to integer advance width values. + * + * Theoretically, a glyph's bytecode can toggle ClearType's + * `backward compatibility' mode, which would allow modification + * of the advance width. In reality, however, applications + * neither allow nor expect modified advance widths if subpixel + * rendering is active. + * + */ + if ( driver->interpreter_version == TT_INTERPRETER_VERSION_35 ) + x = FT_PIX_ROUND( x ); + + y = FT_PIX_ROUND( y ); + } } } } @@ -1356,6 +1440,7 @@ TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( loader->face ); #endif + #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY if ( driver->interpreter_version == TT_INTERPRETER_VERSION_38 ) { @@ -1392,7 +1477,7 @@ /* a utility function to retrieve i-th node from given FT_List */ static FT_ListNode ft_list_get_node_at( FT_List list, - FT_UInt index ) + FT_UInt idx ) { FT_ListNode cur; @@ -1402,10 +1487,10 @@ for ( cur = list->head; cur; cur = cur->next ) { - if ( !index ) + if ( !idx ) return cur; - index--; + idx--; } return NULL; @@ -1467,8 +1552,8 @@ if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) { - x_scale = loader->size->metrics.x_scale; - y_scale = loader->size->metrics.y_scale; + x_scale = loader->size->metrics->x_scale; + y_scale = loader->size->metrics->y_scale; } else { @@ -1574,7 +1659,8 @@ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT - if ( loader->face->doblend && !loader->face->is_default_instance ) + if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) || + FT_IS_VARIATION( FT_FACE( face ) ) ) { /* a small outline structure with four elements for */ /* communication with `TT_Vary_Apply_Glyph_Deltas' */ @@ -1683,7 +1769,7 @@ /***********************************************************************/ /* otherwise, load a composite! */ - else if ( loader->n_contours == -1 ) + else if ( loader->n_contours < 0 ) { FT_Memory memory = face->root.memory; @@ -1694,6 +1780,9 @@ FT_ListNode node, node2; + /* normalize the `n_contours' value */ + loader->n_contours = -1; + /* * We store the glyph index directly in the `node->data' pointer, * following the glib solution (cf. macro `GUINT_TO_POINTER') with a @@ -1705,11 +1794,11 @@ /* clear the nodes filled by sibling chains */ node = ft_list_get_node_at( &loader->composites, recurse_count ); for ( node2 = node; node2; node2 = node2->next ) - node2->data = (void*)ULONG_MAX; + node2->data = (void*)FT_ULONG_MAX; /* check whether we already have a composite glyph with this index */ if ( FT_List_Find( &loader->composites, - (void*)(unsigned long)glyph_index ) ) + FT_UINT_TO_POINTER( glyph_index ) ) ) { FT_TRACE1(( "TT_Load_Composite_Glyph:" " infinite recursion detected\n" )); @@ -1718,13 +1807,13 @@ } else if ( node ) - node->data = (void*)(unsigned long)glyph_index; + node->data = FT_UINT_TO_POINTER( glyph_index ); else { if ( FT_NEW( node ) ) goto Exit; - node->data = (void*)(unsigned long)glyph_index; + node->data = FT_UINT_TO_POINTER( glyph_index ); FT_List_Add( &loader->composites, node ); } @@ -1745,7 +1834,8 @@ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT - if ( face->doblend && !face->is_default_instance ) + if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) || + FT_IS_VARIATION( FT_FACE( face ) ) ) { short i, limit; FT_SubGlyph subglyph; @@ -1988,12 +2078,6 @@ } } } - else - { - /* invalid composite count (negative but not -1) */ - error = FT_THROW( Invalid_Outline ); - goto Exit; - } /***********************************************************************/ /***********************************************************************/ @@ -2035,7 +2119,7 @@ y_scale = 0x10000L; if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 ) - y_scale = size->root.metrics.y_scale; + y_scale = size->metrics->y_scale; if ( glyph->format != FT_GLYPH_FORMAT_COMPOSITE ) FT_Outline_Get_CBox( &glyph->outline, &bbox ); @@ -2050,24 +2134,24 @@ glyph->metrics.horiBearingY = bbox.yMax; glyph->metrics.horiAdvance = loader->pp2.x - loader->pp1.x; - /* Adjust advance width to the value contained in the hdmx table */ - /* unless FT_LOAD_COMPUTE_METRICS is set or backwards compatibility */ - /* mode of the v40 interpreter is active. See `ttinterp.h' for */ - /* details on backwards compatibility mode. */ + /* Adjust advance width to the value contained in the hdmx table */ + /* unless FT_LOAD_COMPUTE_METRICS is set or backward compatibility */ + /* mode of the v40 interpreter is active. See `ttinterp.h' for */ + /* details on backward compatibility mode. */ if ( #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - !( driver->interpreter_version == TT_INTERPRETER_VERSION_40 && - ( loader->exec && loader->exec->backwards_compatibility ) ) && + !( driver->interpreter_version == TT_INTERPRETER_VERSION_40 && + ( loader->exec && loader->exec->backward_compatibility ) ) && #endif - !face->postscript.isFixedPitch && - IS_HINTED( loader->load_flags ) && - !( loader->load_flags & FT_LOAD_COMPUTE_METRICS ) ) + !face->postscript.isFixedPitch && + IS_HINTED( loader->load_flags ) && + !( loader->load_flags & FT_LOAD_COMPUTE_METRICS ) ) { FT_Byte* widthp; widthp = tt_face_get_device_metrics( face, - size->root.metrics.x_ppem, + size->metrics->x_ppem, glyph_index ); #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY @@ -2097,8 +2181,8 @@ } /* set glyph dimensions */ - glyph->metrics.width = bbox.xMax - bbox.xMin; - glyph->metrics.height = bbox.yMax - bbox.yMin; + glyph->metrics.width = SUB_LONG( bbox.xMax, bbox.xMin ); + glyph->metrics.height = SUB_LONG( bbox.yMax, bbox.yMin ); /* Now take care of vertical metrics. In the case where there is */ /* no vertical information within the font (relatively common), */ @@ -2134,7 +2218,8 @@ /* table in the font. Otherwise, we use the */ /* values defined in the horizontal header. */ - height = (FT_Short)FT_DivFix( bbox.yMax - bbox.yMin, + height = (FT_Short)FT_DivFix( SUB_LONG( bbox.yMax, + bbox.yMin ), y_scale ); if ( face->os2.version != 0xFFFFU ) advance = (FT_Pos)( face->os2.sTypoAscender - @@ -2149,7 +2234,7 @@ #ifdef FT_CONFIG_OPTION_INCREMENTAL { FT_Incremental_InterfaceRec* incr; - FT_Incremental_MetricsRec metrics; + FT_Incremental_MetricsRec incr_metrics; FT_Error error; @@ -2159,19 +2244,19 @@ /* overriding metrics for this glyph. */ if ( incr && incr->funcs->get_glyph_metrics ) { - metrics.bearing_x = 0; - metrics.bearing_y = top; - metrics.advance = advance; + incr_metrics.bearing_x = 0; + incr_metrics.bearing_y = top; + incr_metrics.advance = advance; error = incr->funcs->get_glyph_metrics( incr->object, glyph_index, TRUE, - &metrics ); + &incr_metrics ); if ( error ) return error; - top = metrics.bearing_y; - advance = metrics.advance; + top = incr_metrics.bearing_y; + advance = incr_metrics.advance; } } @@ -2213,7 +2298,7 @@ SFNT_Service sfnt; FT_Stream stream; FT_Error error; - TT_SBit_MetricsRec metrics; + TT_SBit_MetricsRec sbit_metrics; face = (TT_Face)glyph->face; @@ -2226,34 +2311,34 @@ (FT_UInt)load_flags, stream, &glyph->bitmap, - &metrics ); + &sbit_metrics ); if ( !error ) { glyph->outline.n_points = 0; glyph->outline.n_contours = 0; - glyph->metrics.width = (FT_Pos)metrics.width * 64; - glyph->metrics.height = (FT_Pos)metrics.height * 64; + glyph->metrics.width = (FT_Pos)sbit_metrics.width * 64; + glyph->metrics.height = (FT_Pos)sbit_metrics.height * 64; - glyph->metrics.horiBearingX = (FT_Pos)metrics.horiBearingX * 64; - glyph->metrics.horiBearingY = (FT_Pos)metrics.horiBearingY * 64; - glyph->metrics.horiAdvance = (FT_Pos)metrics.horiAdvance * 64; + glyph->metrics.horiBearingX = (FT_Pos)sbit_metrics.horiBearingX * 64; + glyph->metrics.horiBearingY = (FT_Pos)sbit_metrics.horiBearingY * 64; + glyph->metrics.horiAdvance = (FT_Pos)sbit_metrics.horiAdvance * 64; - glyph->metrics.vertBearingX = (FT_Pos)metrics.vertBearingX * 64; - glyph->metrics.vertBearingY = (FT_Pos)metrics.vertBearingY * 64; - glyph->metrics.vertAdvance = (FT_Pos)metrics.vertAdvance * 64; + glyph->metrics.vertBearingX = (FT_Pos)sbit_metrics.vertBearingX * 64; + glyph->metrics.vertBearingY = (FT_Pos)sbit_metrics.vertBearingY * 64; + glyph->metrics.vertAdvance = (FT_Pos)sbit_metrics.vertAdvance * 64; glyph->format = FT_GLYPH_FORMAT_BITMAP; if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) { - glyph->bitmap_left = metrics.vertBearingX; - glyph->bitmap_top = metrics.vertBearingY; + glyph->bitmap_left = sbit_metrics.vertBearingX; + glyph->bitmap_top = sbit_metrics.vertBearingY; } else { - glyph->bitmap_left = metrics.horiBearingX; - glyph->bitmap_top = metrics.horiBearingY; + glyph->bitmap_left = sbit_metrics.horiBearingX; + glyph->bitmap_top = sbit_metrics.horiBearingY; } } @@ -2270,17 +2355,17 @@ FT_Int32 load_flags, FT_Bool glyf_table_only ) { - FT_Error error; - TT_Face face; FT_Stream stream; + #ifdef TT_USE_BYTECODE_INTERPRETER + FT_Error error; FT_Bool pedantic = FT_BOOL( load_flags & FT_LOAD_PEDANTIC ); -#endif #if defined TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY || \ defined TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( (TT_Face)glyph->face ); #endif +#endif face = (TT_Face)glyph->face; @@ -2336,13 +2421,19 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL if ( driver->interpreter_version == TT_INTERPRETER_VERSION_40 ) { - subpixel_hinting_lean = TRUE; - grayscale_cleartype = !FT_BOOL( load_flags & - FT_LOAD_TARGET_LCD || - load_flags & - FT_LOAD_TARGET_LCD_V ); - exec->vertical_lcd_lean = FT_BOOL( load_flags & - FT_LOAD_TARGET_LCD_V ); + subpixel_hinting_lean = + FT_BOOL( FT_LOAD_TARGET_MODE( load_flags ) != + FT_RENDER_MODE_MONO ); + grayscale_cleartype = + FT_BOOL( subpixel_hinting_lean && + !( ( load_flags & + FT_LOAD_TARGET_LCD ) || + ( load_flags & + FT_LOAD_TARGET_LCD_V ) ) ); + exec->vertical_lcd_lean = + FT_BOOL( subpixel_hinting_lean && + ( load_flags & + FT_LOAD_TARGET_LCD_V ) ); } else { @@ -2602,7 +2693,8 @@ TT_LoaderRec loader; #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT -#define IS_DEFAULT_INSTANCE ( ( (TT_Face)glyph->face )->is_default_instance ) +#define IS_DEFAULT_INSTANCE ( !( FT_IS_NAMED_INSTANCE( glyph->face ) || \ + FT_IS_VARIATION( glyph->face ) ) ) #else #define IS_DEFAULT_INSTANCE 1 #endif @@ -2617,8 +2709,73 @@ ( load_flags & FT_LOAD_NO_BITMAP ) == 0 && IS_DEFAULT_INSTANCE ) { + FT_Fixed x_scale = size->root.metrics.x_scale; + FT_Fixed y_scale = size->root.metrics.y_scale; + + error = load_sbit_image( size, glyph, glyph_index, load_flags ); - if ( !error ) + if ( FT_ERR_EQ( error, Missing_Bitmap ) ) + { + /* the bitmap strike is incomplete and misses the requested glyph; */ + /* if we have a bitmap-only font, return an empty glyph */ + if ( !FT_IS_SCALABLE( glyph->face ) ) + { + TT_Face face = (TT_Face)glyph->face; + + FT_Short left_bearing = 0; + FT_Short top_bearing = 0; + + FT_UShort advance_width = 0; + FT_UShort advance_height = 0; + + + /* to return an empty glyph, however, we need metrics data */ + /* from the `hmtx' (or `vmtx') table; the assumption is that */ + /* empty glyphs are missing intentionally, representing */ + /* whitespace - not having at least horizontal metrics is */ + /* thus considered an error */ + if ( !face->horz_metrics_size ) + return error; + + /* we now construct an empty bitmap glyph */ + TT_Get_HMetrics( face, glyph_index, + &left_bearing, + &advance_width ); + TT_Get_VMetrics( face, glyph_index, + 0, + &top_bearing, + &advance_height ); + + glyph->outline.n_points = 0; + glyph->outline.n_contours = 0; + + glyph->metrics.width = 0; + glyph->metrics.height = 0; + + glyph->metrics.horiBearingX = FT_MulFix( left_bearing, x_scale ); + glyph->metrics.horiBearingY = 0; + glyph->metrics.horiAdvance = FT_MulFix( advance_width, x_scale ); + + glyph->metrics.vertBearingX = 0; + glyph->metrics.vertBearingY = FT_MulFix( top_bearing, y_scale ); + glyph->metrics.vertAdvance = FT_MulFix( advance_height, y_scale ); + + glyph->format = FT_GLYPH_FORMAT_BITMAP; + glyph->bitmap.pixel_mode = FT_PIXEL_MODE_MONO; + + glyph->bitmap_left = 0; + glyph->bitmap_top = 0; + + return FT_Err_Ok; + } + } + else if ( error ) + { + /* return error if font is not scalable */ + if ( !FT_IS_SCALABLE( glyph->face ) ) + return error; + } + else { if ( FT_IS_SCALABLE( glyph->face ) ) { @@ -2632,13 +2789,11 @@ /* sanity checks: if `xxxAdvance' in the sbit metric */ /* structure isn't set, use `linearXXXAdvance' */ if ( !glyph->metrics.horiAdvance && glyph->linearHoriAdvance ) - glyph->metrics.horiAdvance = - FT_MulFix( glyph->linearHoriAdvance, - size->root.metrics.x_scale ); + glyph->metrics.horiAdvance = FT_MulFix( glyph->linearHoriAdvance, + x_scale ); if ( !glyph->metrics.vertAdvance && glyph->linearVertAdvance ) - glyph->metrics.vertAdvance = - FT_MulFix( glyph->linearVertAdvance, - size->root.metrics.y_scale ); + glyph->metrics.vertAdvance = FT_MulFix( glyph->linearVertAdvance, + y_scale ); } return FT_Err_Ok; @@ -2649,14 +2804,20 @@ /* if FT_LOAD_NO_SCALE is not set, `ttmetrics' must be valid */ if ( !( load_flags & FT_LOAD_NO_SCALE ) && !size->ttmetrics.valid ) - return FT_THROW( Invalid_Size_Handle ); + { + error = FT_THROW( Invalid_Size_Handle ); + goto Exit; + } if ( load_flags & FT_LOAD_SBITS_ONLY ) - return FT_THROW( Invalid_Argument ); + { + error = FT_THROW( Invalid_Argument ); + goto Exit; + } error = tt_loader_init( &loader, size, glyph, load_flags, FALSE ); if ( error ) - return error; + goto Exit; glyph->format = FT_GLYPH_FORMAT_OUTLINE; glyph->num_subglyphs = 0; @@ -2728,9 +2889,16 @@ /* TrueType glyphs at all sizes using the bytecode interpreter. */ /* */ if ( !( load_flags & FT_LOAD_NO_SCALE ) && - size->root.metrics.y_ppem < 24 ) + size->metrics->y_ppem < 24 ) glyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION; + Exit: +#ifdef FT_DEBUG_LEVEL_TRACE + if ( error ) + FT_TRACE1(( " failed (error code 0x%x)\n", + error )); +#endif + return error; } diff --git a/modules/freetype2/src/truetype/ttgload.h b/modules/freetype2/src/truetype/ttgload.h index bfa29e4ff..d237cfd28 100644 --- a/modules/freetype2/src/truetype/ttgload.h +++ b/modules/freetype2/src/truetype/ttgload.h @@ -4,7 +4,7 @@ /* */ /* TrueType Glyph Loader (specification). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/ttgxvar.c b/modules/freetype2/src/truetype/ttgxvar.c index cf4f7b17a..29ab2a4ef 100644 --- a/modules/freetype2/src/truetype/ttgxvar.c +++ b/modules/freetype2/src/truetype/ttgxvar.c @@ -4,7 +4,7 @@ /* */ /* TrueType GX Font Variation loader */ /* */ -/* Copyright 2004-2016 by */ +/* Copyright 2004-2018 by */ /* David Turner, Robert Wilhelm, Werner Lemberg, and George Williams. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -22,10 +22,6 @@ /* */ /* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6[fgca]var.html */ /* */ - /* The documentation for `fvar' is inconsistent. At one point it says */ - /* that `countSizePairs' should be 3, at another point 2. It should */ - /* be 2. */ - /* */ /* The documentation for `gvar' is not intelligible; `cvar' refers you */ /* to `gvar' and is thus also incomprehensible. */ /* */ @@ -49,7 +45,9 @@ #include FT_INTERNAL_STREAM_H #include FT_INTERNAL_SFNT_H #include FT_TRUETYPE_TAGS_H +#include FT_TRUETYPE_IDS_H #include FT_MULTIPLE_MASTERS_H +#include FT_LIST_H #include "ttpload.h" #include "ttgxvar.h" @@ -62,8 +60,11 @@ #define FT_Stream_FTell( stream ) \ (FT_ULong)( (stream)->cursor - (stream)->base ) -#define FT_Stream_SeekSet( stream, off ) \ - ( (stream)->cursor = (stream)->base + (off) ) +#define FT_Stream_SeekSet( stream, off ) \ + (stream)->cursor = \ + ( (off) < (FT_ULong)( (stream)->limit - (stream)->base ) ) \ + ? (stream)->base + (off) \ + : (stream)->limit /*************************************************************************/ @@ -322,7 +323,7 @@ FT_TRACE2(( "AVAR " )); - blend->avar_checked = TRUE; + blend->avar_loaded = TRUE; error = face->goto_table( face, TTAG_avar, stream, &table_len ); if ( error ) { @@ -346,7 +347,7 @@ if ( axisCount != (FT_Long)blend->mmvar->num_axis ) { - FT_TRACE2(( "ft_var_load_avar: number of axes in `avar' and `cvar'\n" + FT_TRACE2(( "ft_var_load_avar: number of axes in `avar' and `fvar'\n" " table are different\n" )); goto Exit; } @@ -394,361 +395,309 @@ /* some macros we need */ - #define FT_FIXED_ONE ( (FT_Fixed)0x10000 ) +#define FT_FIXED_ONE ( (FT_Fixed)0x10000 ) - #define FT_fdot14ToFixed( x ) \ - ( ( (FT_Fixed)( (FT_Int16)(x) ) ) << 2 ) - #define FT_intToFixed( i ) \ - ( (FT_Fixed)( (FT_UInt32)(i) << 16 ) ) - #define FT_fixedToInt( x ) \ - ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) ) +#define FT_fdot14ToFixed( x ) \ + ( (FT_Fixed)( (FT_ULong)(x) << 2 ) ) +#define FT_intToFixed( i ) \ + ( (FT_Fixed)( (FT_ULong)(i) << 16 ) ) +#define FT_fixedToInt( x ) \ + ( (FT_Short)( ( (FT_UInt32)(x) + 0x8000U ) >> 16 ) ) - /*************************************************************************/ - /* */ - /* <Function> */ - /* ft_var_load_hvar */ - /* */ - /* <Description> */ - /* Parse the `HVAR' table and set `blend->hvar_loaded' to TRUE. */ - /* */ - /* On success, `blend->hvar_checked' is set to TRUE. */ - /* */ - /* Some memory may remain allocated on error; it is always freed in */ - /* `tt_done_blend', however. */ - /* */ - /* <InOut> */ - /* face :: The font face. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ static FT_Error - ft_var_load_hvar( TT_Face face ) + ft_var_load_item_variation_store( TT_Face face, + FT_ULong offset, + GX_ItemVarStore itemStore ) { FT_Stream stream = FT_FACE_STREAM( face ); FT_Memory memory = stream->memory; - GX_Blend blend = face->blend; - FT_Error error; - FT_UShort majorVersion; - FT_ULong table_len; - FT_ULong table_offset; - FT_ULong store_offset; + FT_UShort format; + FT_ULong region_offset; + FT_UInt i, j, k; + FT_UInt shortDeltaCount; - FT_ULong* dataOffsetArray = NULL; + GX_Blend blend = face->blend; + GX_ItemVarData varData; + FT_ULong* dataOffsetArray = NULL; - blend->hvar_loaded = TRUE; - FT_TRACE2(( "HVAR " )); + if ( FT_STREAM_SEEK( offset ) || + FT_READ_USHORT( format ) ) + goto Exit; - error = face->goto_table( face, TTAG_HVAR, stream, &table_len ); - if ( error ) + if ( format != 1 ) { - FT_TRACE2(( "is missing\n" )); + FT_TRACE2(( "ft_var_load_item_variation_store: bad store format %d\n", + format )); + error = FT_THROW( Invalid_Table ); goto Exit; } - table_offset = FT_STREAM_POS(); - - /* skip minor version */ - if ( FT_READ_USHORT( majorVersion ) || - FT_STREAM_SKIP( 2 ) ) + /* read top level fields */ + if ( FT_READ_ULONG( region_offset ) || + FT_READ_USHORT( itemStore->dataCount ) ) goto Exit; - if ( majorVersion != 1 ) + + /* we need at least one entry in `itemStore->varData' */ + if ( !itemStore->dataCount ) { - FT_TRACE2(( "bad table version %d\n", majorVersion )); + FT_TRACE2(( "ft_var_load_item_variation_store: missing varData\n" )); error = FT_THROW( Invalid_Table ); goto Exit; } - /* skip map offset */ - if ( FT_READ_ULONG( store_offset ) || - FT_STREAM_SKIP( 4 ) ) + /* make temporary copy of item variation data offsets; */ + /* we will parse region list first, then come back */ + if ( FT_NEW_ARRAY( dataOffsetArray, itemStore->dataCount ) ) goto Exit; - /* parse item variation store */ + for ( i = 0; i < itemStore->dataCount; i++ ) { - FT_UShort format; - FT_ULong region_offset; - FT_UInt i, j, k; - FT_UInt shortDeltaCount; - - GX_HVStore itemStore; - GX_HVarTable hvarTable; - GX_HVarData hvarData; - - - if ( FT_STREAM_SEEK( table_offset + store_offset ) || - FT_READ_USHORT( format ) ) - goto Exit; - if ( format != 1 ) - { - FT_TRACE2(( "bad store format %d\n", format )); - error = FT_THROW( Invalid_Table ); + if ( FT_READ_ULONG( dataOffsetArray[i] ) ) goto Exit; - } + } - if ( FT_NEW( blend->hvar_table ) ) /* allocate table at top level */ - goto Exit; + /* parse array of region records (region list) */ + if ( FT_STREAM_SEEK( offset + region_offset ) ) + goto Exit; - hvarTable = blend->hvar_table; - itemStore = &hvarTable->itemStore; + if ( FT_READ_USHORT( itemStore->axisCount ) || + FT_READ_USHORT( itemStore->regionCount ) ) + goto Exit; - /* read top level fields */ - if ( FT_READ_ULONG( region_offset ) || - FT_READ_USHORT( itemStore->dataCount ) ) - goto Exit; + if ( itemStore->axisCount != (FT_Long)blend->mmvar->num_axis ) + { + FT_TRACE2(( "ft_var_load_item_variation_store:" + " number of axes in item variation store\n" + " " + " and `fvar' table are different\n" )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } - /* make temporary copy of item variation data offsets; */ - /* we will parse region list first, then come back */ - if ( FT_NEW_ARRAY( dataOffsetArray, itemStore->dataCount ) ) - goto Exit; + if ( FT_NEW_ARRAY( itemStore->varRegionList, itemStore->regionCount ) ) + goto Exit; - for ( i = 0; i < itemStore->dataCount; i++ ) - { - if ( FT_READ_ULONG( dataOffsetArray[i] ) ) - goto Exit; - } + for ( i = 0; i < itemStore->regionCount; i++ ) + { + GX_AxisCoords axisCoords; - /* parse array of region records (region list) */ - if ( FT_STREAM_SEEK( table_offset + store_offset + region_offset ) ) - goto Exit; - if ( FT_READ_USHORT( itemStore->axisCount ) || - FT_READ_USHORT( itemStore->regionCount ) ) + if ( FT_NEW_ARRAY( itemStore->varRegionList[i].axisList, + itemStore->axisCount ) ) goto Exit; - if ( FT_NEW_ARRAY( itemStore->varRegionList, itemStore->regionCount ) ) - goto Exit; + axisCoords = itemStore->varRegionList[i].axisList; - for ( i = 0; i < itemStore->regionCount; i++ ) + for ( j = 0; j < itemStore->axisCount; j++ ) { - GX_AxisCoords axisCoords; + FT_Short start, peak, end; - if ( FT_NEW_ARRAY( itemStore->varRegionList[i].axisList, - itemStore->axisCount ) ) + if ( FT_READ_SHORT( start ) || + FT_READ_SHORT( peak ) || + FT_READ_SHORT( end ) ) goto Exit; - axisCoords = itemStore->varRegionList[i].axisList; + axisCoords[j].startCoord = FT_fdot14ToFixed( start ); + axisCoords[j].peakCoord = FT_fdot14ToFixed( peak ); + axisCoords[j].endCoord = FT_fdot14ToFixed( end ); + } + } - for ( j = 0; j < itemStore->axisCount; j++ ) - { - FT_Short start, peak, end; + /* end of region list parse */ + /* use dataOffsetArray now to parse varData items */ + if ( FT_NEW_ARRAY( itemStore->varData, itemStore->dataCount ) ) + goto Exit; - if ( FT_READ_SHORT( start ) || - FT_READ_SHORT( peak ) || - FT_READ_SHORT( end ) ) - goto Exit; + for ( i = 0; i < itemStore->dataCount; i++ ) + { + varData = &itemStore->varData[i]; - axisCoords[j].startCoord = FT_fdot14ToFixed( start ); - axisCoords[j].peakCoord = FT_fdot14ToFixed( peak ); - axisCoords[j].endCoord = FT_fdot14ToFixed( end ); - } - } + if ( FT_STREAM_SEEK( offset + dataOffsetArray[i] ) ) + goto Exit; - /* end of region list parse */ + if ( FT_READ_USHORT( varData->itemCount ) || + FT_READ_USHORT( shortDeltaCount ) || + FT_READ_USHORT( varData->regionIdxCount ) ) + goto Exit; - /* use dataOffsetArray now to parse varData items */ - if ( FT_NEW_ARRAY( itemStore->varData, itemStore->dataCount ) ) + /* check some data consistency */ + if ( shortDeltaCount > varData->regionIdxCount ) + { + FT_TRACE2(( "bad short count %d or region count %d\n", + shortDeltaCount, + varData->regionIdxCount )); + error = FT_THROW( Invalid_Table ); goto Exit; + } - for ( i = 0; i < itemStore->dataCount; i++ ) + if ( varData->regionIdxCount > itemStore->regionCount ) { - hvarData = &itemStore->varData[i]; + FT_TRACE2(( "inconsistent regionCount %d in varData[%d]\n", + varData->regionIdxCount, + i )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } - if ( FT_STREAM_SEEK( table_offset + - store_offset + - dataOffsetArray[i] ) ) - goto Exit; + /* parse region indices */ + if ( FT_NEW_ARRAY( varData->regionIndices, + varData->regionIdxCount ) ) + goto Exit; - if ( FT_READ_USHORT( hvarData->itemCount ) || - FT_READ_USHORT( shortDeltaCount ) || - FT_READ_USHORT( hvarData->regionIdxCount ) ) + for ( j = 0; j < varData->regionIdxCount; j++ ) + { + if ( FT_READ_USHORT( varData->regionIndices[j] ) ) goto Exit; - /* check some data consistency */ - if ( shortDeltaCount > hvarData->regionIdxCount ) + if ( varData->regionIndices[j] >= itemStore->regionCount ) { - FT_TRACE2(( "bad short count %d or region count %d\n", - shortDeltaCount, - hvarData->regionIdxCount )); + FT_TRACE2(( "bad region index %d\n", + varData->regionIndices[j] )); error = FT_THROW( Invalid_Table ); goto Exit; } + } + + /* Parse delta set. */ + /* */ + /* On input, deltas are (shortDeltaCount + regionIdxCount) bytes */ + /* each; on output, deltas are expanded to `regionIdxCount' shorts */ + /* each. */ + if ( FT_NEW_ARRAY( varData->deltaSet, + varData->regionIdxCount * varData->itemCount ) ) + goto Exit; - if ( hvarData->regionIdxCount > itemStore->regionCount ) + /* the delta set is stored as a 2-dimensional array of shorts; */ + /* sign-extend signed bytes to signed shorts */ + for ( j = 0; j < varData->itemCount * varData->regionIdxCount; ) + { + for ( k = 0; k < shortDeltaCount; k++, j++ ) { - FT_TRACE2(( "inconsistent regionCount %d in varData[%d]\n", - hvarData->regionIdxCount, - i )); - error = FT_THROW( Invalid_Table ); - goto Exit; - } + /* read the short deltas */ + FT_Short delta; - /* parse region indices */ - if ( FT_NEW_ARRAY( hvarData->regionIndices, - hvarData->regionIdxCount ) ) - goto Exit; - for ( j = 0; j < hvarData->regionIdxCount; j++ ) - { - if ( FT_READ_USHORT( hvarData->regionIndices[j] ) ) + if ( FT_READ_SHORT( delta ) ) goto Exit; - if ( hvarData->regionIndices[j] >= itemStore->regionCount ) - { - FT_TRACE2(( "bad region index %d\n", - hvarData->regionIndices[j] )); - error = FT_THROW( Invalid_Table ); - goto Exit; - } + varData->deltaSet[j] = delta; } - /* Parse delta set. */ - /* */ - /* On input, deltas are ( shortDeltaCount + regionIdxCount ) bytes */ - /* each; on output, deltas are expanded to `regionIdxCount' shorts */ - /* each. */ - if ( FT_NEW_ARRAY( hvarData->deltaSet, - hvarData->regionIdxCount * hvarData->itemCount ) ) - goto Exit; - - /* the delta set is stored as a 2-dimensional array of shorts; */ - /* sign-extend signed bytes to signed shorts */ - for ( j = 0; j < hvarData->itemCount * hvarData->regionIdxCount; ) + for ( ; k < varData->regionIdxCount; k++, j++ ) { - for ( k = 0; k < shortDeltaCount; k++, j++ ) - { - /* read the short deltas */ - FT_Short delta; + /* read the (signed) byte deltas */ + FT_Char delta; - if ( FT_READ_SHORT( delta ) ) - goto Exit; - - hvarData->deltaSet[j] = delta; - } - - for ( ; k < hvarData->regionIdxCount; k++, j++ ) - { - /* read the (signed) byte deltas */ - FT_Char delta; - - - if ( FT_READ_CHAR( delta ) ) - goto Exit; + if ( FT_READ_CHAR( delta ) ) + goto Exit; - hvarData->deltaSet[j] = delta; - } + varData->deltaSet[j] = delta; } } } - /* end parse item variation store */ + Exit: + FT_FREE( dataOffsetArray ); - /* parse width map */ - { - GX_WidthMap widthMap; + return error; + } - FT_UShort format; - FT_UInt entrySize; - FT_UInt innerBitCount; - FT_UInt innerIndexMask; - FT_UInt i, j; + static FT_Error + ft_var_load_delta_set_index_mapping( TT_Face face, + FT_ULong offset, + GX_DeltaSetIdxMap map, + GX_ItemVarStore itemStore ) + { + FT_Stream stream = FT_FACE_STREAM( face ); + FT_Memory memory = stream->memory; - widthMap = &blend->hvar_table->widthMap; + FT_Error error; - if ( FT_READ_USHORT( format ) || - FT_READ_USHORT( widthMap->mapCount ) ) - goto Exit; + FT_UShort format; + FT_UInt entrySize; + FT_UInt innerBitCount; + FT_UInt innerIndexMask; + FT_UInt i, j; - if ( format & 0xFFC0 ) - { - FT_TRACE2(( "bad map format %d\n", format )); - error = FT_THROW( Invalid_Table ); - goto Exit; - } - /* bytes per entry: 1, 2, 3, or 4 */ - entrySize = ( ( format & 0x0030 ) >> 4 ) + 1; - innerBitCount = ( format & 0x000F ) + 1; - innerIndexMask = ( 1 << innerBitCount ) - 1; + if ( FT_STREAM_SEEK( offset ) || + FT_READ_USHORT( format ) || + FT_READ_USHORT( map->mapCount ) ) + goto Exit; - if ( FT_NEW_ARRAY( widthMap->innerIndex, widthMap->mapCount ) ) - goto Exit; + if ( format & 0xFFC0 ) + { + FT_TRACE2(( "bad map format %d\n", format )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } - if ( FT_NEW_ARRAY( widthMap->outerIndex, widthMap->mapCount ) ) - goto Exit; + /* bytes per entry: 1, 2, 3, or 4 */ + entrySize = ( ( format & 0x0030 ) >> 4 ) + 1; + innerBitCount = ( format & 0x000F ) + 1; + innerIndexMask = ( 1 << innerBitCount ) - 1; - for ( i = 0; i < widthMap->mapCount; i++ ) - { - FT_UInt mapData = 0; - FT_UInt outerIndex, innerIndex; + if ( FT_NEW_ARRAY( map->innerIndex, map->mapCount ) ) + goto Exit; + if ( FT_NEW_ARRAY( map->outerIndex, map->mapCount ) ) + goto Exit; - /* read map data one unsigned byte at a time, big endian */ - for ( j = 0; j < entrySize; j++ ) - { - FT_Byte data; + for ( i = 0; i < map->mapCount; i++ ) + { + FT_UInt mapData = 0; + FT_UInt outerIndex, innerIndex; - if ( FT_READ_BYTE( data ) ) - goto Exit; - - mapData = ( mapData << 8 ) | data; - } + /* read map data one unsigned byte at a time, big endian */ + for ( j = 0; j < entrySize; j++ ) + { + FT_Byte data; - outerIndex = mapData >> innerBitCount; - if ( outerIndex >= blend->hvar_table->itemStore.dataCount ) - { - FT_TRACE2(( "outerIndex[%d] == %d out of range\n", - i, - outerIndex )); - error = FT_THROW( Invalid_Table ); + if ( FT_READ_BYTE( data ) ) goto Exit; - } - widthMap->outerIndex[i] = outerIndex; + mapData = ( mapData << 8 ) | data; + } - innerIndex = mapData & innerIndexMask; + outerIndex = mapData >> innerBitCount; - if ( innerIndex >= - blend->hvar_table->itemStore.varData[outerIndex].itemCount ) - { - FT_TRACE2(( "innerIndex[%d] == %d out of range\n", - i, - innerIndex )); - error = FT_THROW( Invalid_Table ); - goto Exit; - } - - widthMap->innerIndex[i] = innerIndex; + if ( outerIndex >= itemStore->dataCount ) + { + FT_TRACE2(( "outerIndex[%d] == %d out of range\n", + i, + outerIndex )); + error = FT_THROW( Invalid_Table ); + goto Exit; } - } - /* end parse width map */ + map->outerIndex[i] = outerIndex; - FT_TRACE2(( "loaded\n" )); - error = FT_Err_Ok; + innerIndex = mapData & innerIndexMask; - Exit: - FT_FREE( dataOffsetArray ); - - if ( !error ) - { - blend->hvar_checked = TRUE; + if ( innerIndex >= itemStore->varData[outerIndex].itemCount ) + { + FT_TRACE2(( "innerIndex[%d] == %d out of range\n", + i, + innerIndex )); + error = FT_THROW( Invalid_Table ); + goto Exit; + } - /* TODO: implement other HVAR stuff */ - face->variation_support |= TT_FACE_FLAG_VAR_HADVANCE; + map->innerIndex[i] = innerIndex; } + Exit: return error; } @@ -756,86 +705,181 @@ /*************************************************************************/ /* */ /* <Function> */ - /* tt_hadvance_adjust */ + /* ft_var_load_hvvar */ /* */ /* <Description> */ - /* Apply HVAR advance width adjustment of a given glyph. */ + /* If `vertical' is zero, parse the `HVAR' table and set */ + /* `blend->hvar_loaded' to TRUE. On success, `blend->hvar_checked' */ + /* is set to TRUE. */ /* */ - /* <Input> */ - /* gindex :: The glyph index. */ + /* If `vertical' is not zero, parse the `VVAR' table and set */ + /* `blend->vvar_loaded' to TRUE. On success, `blend->vvar_checked' */ + /* is set to TRUE. */ + /* */ + /* Some memory may remain allocated on error; it is always freed in */ + /* `tt_done_blend', however. */ /* */ /* <InOut> */ - /* face :: The font face. */ + /* face :: The font face. */ /* */ - /* adelta :: Points to width value that gets modified. */ + /* <Return> */ + /* FreeType error code. 0 means success. */ /* */ - FT_LOCAL_DEF( FT_Error ) - tt_hadvance_adjust( TT_Face face, - FT_UInt gindex, - FT_Int *avalue ) + static FT_Error + ft_var_load_hvvar( TT_Face face, + FT_Bool vertical ) { - FT_Error error = FT_Err_Ok; + FT_Stream stream = FT_FACE_STREAM( face ); + FT_Memory memory = stream->memory; - GX_HVarData varData; + GX_Blend blend = face->blend; - FT_UInt innerIndex, outerIndex; - FT_UInt master, j; - FT_Fixed netAdjustment = 0; /* accumulated adjustment */ - FT_Fixed scaledDelta; - FT_Short* deltaSet; - FT_Fixed delta; + GX_HVVarTable table; + FT_Error error; + FT_UShort majorVersion; + FT_ULong table_len; + FT_ULong table_offset; + FT_ULong store_offset; + FT_ULong widthMap_offset; - if ( !face->doblend || !face->blend ) - goto Exit; - if ( !face->blend->hvar_loaded ) + if ( vertical ) + { + blend->vvar_loaded = TRUE; + + FT_TRACE2(( "VVAR " )); + + error = face->goto_table( face, TTAG_VVAR, stream, &table_len ); + } + else + { + blend->hvar_loaded = TRUE; + + FT_TRACE2(( "HVAR " )); + + error = face->goto_table( face, TTAG_HVAR, stream, &table_len ); + } + + if ( error ) { - /* initialize hvar table */ - face->blend->hvar_error = ft_var_load_hvar( face ); + FT_TRACE2(( "is missing\n" )); + goto Exit; } - if ( !face->blend->hvar_checked ) + table_offset = FT_STREAM_POS(); + + /* skip minor version */ + if ( FT_READ_USHORT( majorVersion ) || + FT_STREAM_SKIP( 2 ) ) + goto Exit; + + if ( majorVersion != 1 ) { - error = face->blend->hvar_error; + FT_TRACE2(( "bad table version %d\n", majorVersion )); + error = FT_THROW( Invalid_Table ); goto Exit; } - /* advance width adjustments are always present in an `HVAR' table, */ - /* so need to test for this capability */ + if ( FT_READ_ULONG( store_offset ) || + FT_READ_ULONG( widthMap_offset ) ) + goto Exit; - if ( gindex >= face->blend->hvar_table->widthMap.mapCount ) + if ( vertical ) + { + if ( FT_NEW( blend->vvar_table ) ) + goto Exit; + table = blend->vvar_table; + } + else { - FT_TRACE2(( "gindex %d out of range\n", gindex )); - error = FT_THROW( Invalid_Argument ); + if ( FT_NEW( blend->hvar_table ) ) + goto Exit; + table = blend->hvar_table; + } + + error = ft_var_load_item_variation_store( + face, + table_offset + store_offset, + &table->itemStore ); + if ( error ) goto Exit; + + if ( widthMap_offset ) + { + error = ft_var_load_delta_set_index_mapping( + face, + table_offset + widthMap_offset, + &table->widthMap, + &table->itemStore ); + if ( error ) + goto Exit; } - /* trust that HVAR parser has checked indices */ - outerIndex = face->blend->hvar_table->widthMap.outerIndex[gindex]; - innerIndex = face->blend->hvar_table->widthMap.innerIndex[gindex]; - varData = &face->blend->hvar_table->itemStore.varData[outerIndex]; - deltaSet = &varData->deltaSet[varData->regionIdxCount * innerIndex]; + FT_TRACE2(( "loaded\n" )); + error = FT_Err_Ok; + + Exit: + if ( !error ) + { + if ( vertical ) + { + blend->vvar_checked = TRUE; + + /* FreeType doesn't provide functions to quickly retrieve */ + /* TSB, BSB, or VORG values; we thus don't have to implement */ + /* support for those three item variation stores. */ + + face->variation_support |= TT_FACE_FLAG_VAR_VADVANCE; + } + else + { + blend->hvar_checked = TRUE; + + /* FreeType doesn't provide functions to quickly retrieve */ + /* LSB or RSB values; we thus don't have to implement */ + /* support for those two item variation stores. */ + + face->variation_support |= TT_FACE_FLAG_VAR_HADVANCE; + } + } + + return error; + } + + + static FT_Int + ft_var_get_item_delta( TT_Face face, + GX_ItemVarStore itemStore, + FT_UInt outerIndex, + FT_UInt innerIndex ) + { + GX_ItemVarData varData; + FT_Short* deltaSet; + + FT_UInt master, j; + FT_Fixed netAdjustment = 0; /* accumulated adjustment */ + FT_Fixed scaledDelta; + FT_Fixed delta; + /* See pseudo code from `Font Variations Overview' */ /* in the OpenType specification. */ + varData = &itemStore->varData[outerIndex]; + deltaSet = &varData->deltaSet[varData->regionIdxCount * innerIndex]; + /* outer loop steps through master designs to be blended */ for ( master = 0; master < varData->regionIdxCount; master++ ) { FT_Fixed scalar = FT_FIXED_ONE; FT_UInt regionIndex = varData->regionIndices[master]; - GX_AxisCoords axis = face->blend - ->hvar_table - ->itemStore.varRegionList[regionIndex] - .axisList; + GX_AxisCoords axis = itemStore->varRegionList[regionIndex].axisList; /* inner loop steps through axes in this region */ - for ( j = 0; - j < face->blend->hvar_table->itemStore.axisCount; - j++, axis++ ) + for ( j = 0; j < itemStore->axisCount; j++, axis++ ) { FT_Fixed axisScalar; @@ -889,18 +933,460 @@ } /* per-region loop */ - /* apply the accumulated adjustment to derive the interpolated value */ - FT_TRACE5(( "horizontal width %d adjusted by %d units (HVAR)\n", + return FT_fixedToInt( netAdjustment ); + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_hvadvance_adjust */ + /* */ + /* <Description> */ + /* Apply `HVAR' advance width or `VVAR' advance height adjustment of */ + /* a given glyph. */ + /* */ + /* <Input> */ + /* gindex :: The glyph index. */ + /* */ + /* vertical :: If set, handle `VVAR' table. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* */ + /* adelta :: Points to width or height value that gets modified. */ + /* */ + static FT_Error + tt_hvadvance_adjust( TT_Face face, + FT_UInt gindex, + FT_Int *avalue, + FT_Bool vertical ) + { + FT_Error error = FT_Err_Ok; + FT_UInt innerIndex, outerIndex; + FT_Int delta; + + GX_HVVarTable table; + + + if ( !face->doblend || !face->blend ) + goto Exit; + + if ( vertical ) + { + if ( !face->blend->vvar_loaded ) + { + /* initialize vvar table */ + face->blend->vvar_error = ft_var_load_hvvar( face, 1 ); + } + + if ( !face->blend->vvar_checked ) + { + error = face->blend->vvar_error; + goto Exit; + } + + table = face->blend->vvar_table; + } + else + { + if ( !face->blend->hvar_loaded ) + { + /* initialize hvar table */ + face->blend->hvar_error = ft_var_load_hvvar( face, 0 ); + } + + if ( !face->blend->hvar_checked ) + { + error = face->blend->hvar_error; + goto Exit; + } + + table = face->blend->hvar_table; + } + + /* advance width or height adjustments are always present in an */ + /* `HVAR' or `VVAR' table; no need to test for this capability */ + + if ( table->widthMap.innerIndex ) + { + FT_UInt idx = gindex; + + + if ( idx >= table->widthMap.mapCount ) + idx = table->widthMap.mapCount - 1; + + /* trust that HVAR parser has checked indices */ + outerIndex = table->widthMap.outerIndex[idx]; + innerIndex = table->widthMap.innerIndex[idx]; + } + else + { + GX_ItemVarData varData; + + + /* no widthMap data */ + outerIndex = 0; + innerIndex = gindex; + + varData = &table->itemStore.varData[outerIndex]; + if ( gindex >= varData->itemCount ) + { + FT_TRACE2(( "gindex %d out of range\n", gindex )); + error = FT_THROW( Invalid_Argument ); + goto Exit; + } + } + + delta = ft_var_get_item_delta( face, + &table->itemStore, + outerIndex, + innerIndex ); + + FT_TRACE5(( "%s value %d adjusted by %d unit%s (%s)\n", + vertical ? "vertical height" : "horizontal width", *avalue, - FT_fixedToInt( netAdjustment ) )); + delta, + delta == 1 ? "" : "s", + vertical ? "VVAR" : "HVAR" )); - *avalue += FT_fixedToInt( netAdjustment ); + *avalue += delta; Exit: return error; } + FT_LOCAL_DEF( FT_Error ) + tt_hadvance_adjust( TT_Face face, + FT_UInt gindex, + FT_Int *avalue ) + { + return tt_hvadvance_adjust( face, gindex, avalue, 0 ); + } + + + FT_LOCAL_DEF( FT_Error ) + tt_vadvance_adjust( TT_Face face, + FT_UInt gindex, + FT_Int *avalue ) + { + return tt_hvadvance_adjust( face, gindex, avalue, 1 ); + } + + +#define GX_VALUE_SIZE 8 + + /* all values are FT_Short or FT_UShort entities; */ + /* we treat them consistently as FT_Short */ +#define GX_VALUE_CASE( tag, dflt ) \ + case MVAR_TAG_ ## tag : \ + p = (FT_Short*)&face->dflt; \ + break + +#define GX_GASP_CASE( idx ) \ + case MVAR_TAG_GASP_ ## idx : \ + if ( idx < face->gasp.numRanges - 1 ) \ + p = (FT_Short*)&face->gasp.gaspRanges[idx].maxPPEM; \ + else \ + p = NULL; \ + break + + + static FT_Short* + ft_var_get_value_pointer( TT_Face face, + FT_ULong mvar_tag ) + { + FT_Short* p; + + + switch ( mvar_tag ) + { + GX_GASP_CASE( 0 ); + GX_GASP_CASE( 1 ); + GX_GASP_CASE( 2 ); + GX_GASP_CASE( 3 ); + GX_GASP_CASE( 4 ); + GX_GASP_CASE( 5 ); + GX_GASP_CASE( 6 ); + GX_GASP_CASE( 7 ); + GX_GASP_CASE( 8 ); + GX_GASP_CASE( 9 ); + + GX_VALUE_CASE( CPHT, os2.sCapHeight ); + GX_VALUE_CASE( HASC, os2.sTypoAscender ); + GX_VALUE_CASE( HCLA, os2.usWinAscent ); + GX_VALUE_CASE( HCLD, os2.usWinDescent ); + GX_VALUE_CASE( HCOF, horizontal.caret_Offset ); + GX_VALUE_CASE( HCRN, horizontal.caret_Slope_Run ); + GX_VALUE_CASE( HCRS, horizontal.caret_Slope_Rise ); + GX_VALUE_CASE( HDSC, os2.sTypoDescender ); + GX_VALUE_CASE( HLGP, os2.sTypoLineGap ); + GX_VALUE_CASE( SBXO, os2.ySubscriptXOffset); + GX_VALUE_CASE( SBXS, os2.ySubscriptXSize ); + GX_VALUE_CASE( SBYO, os2.ySubscriptYOffset ); + GX_VALUE_CASE( SBYS, os2.ySubscriptYSize ); + GX_VALUE_CASE( SPXO, os2.ySuperscriptXOffset ); + GX_VALUE_CASE( SPXS, os2.ySuperscriptXSize ); + GX_VALUE_CASE( SPYO, os2.ySuperscriptYOffset ); + GX_VALUE_CASE( SPYS, os2.ySuperscriptYSize ); + GX_VALUE_CASE( STRO, os2.yStrikeoutPosition ); + GX_VALUE_CASE( STRS, os2.yStrikeoutSize ); + GX_VALUE_CASE( UNDO, postscript.underlinePosition ); + GX_VALUE_CASE( UNDS, postscript.underlineThickness ); + GX_VALUE_CASE( VASC, vertical.Ascender ); + GX_VALUE_CASE( VCOF, vertical.caret_Offset ); + GX_VALUE_CASE( VCRN, vertical.caret_Slope_Run ); + GX_VALUE_CASE( VCRS, vertical.caret_Slope_Rise ); + GX_VALUE_CASE( VDSC, vertical.Descender ); + GX_VALUE_CASE( VLGP, vertical.Line_Gap ); + GX_VALUE_CASE( XHGT, os2.sxHeight ); + + default: + /* ignore unknown tag */ + p = NULL; + } + + return p; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* ft_var_load_mvar */ + /* */ + /* <Description> */ + /* Parse the `MVAR' table. */ + /* */ + /* Some memory may remain allocated on error; it is always freed in */ + /* `tt_done_blend', however. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* */ + static void + ft_var_load_mvar( TT_Face face ) + { + FT_Stream stream = FT_FACE_STREAM( face ); + FT_Memory memory = stream->memory; + + GX_Blend blend = face->blend; + GX_ItemVarStore itemStore; + GX_Value value, limit; + + FT_Error error; + FT_UShort majorVersion; + FT_ULong table_len; + FT_ULong table_offset; + FT_UShort store_offset; + FT_ULong records_offset; + + + FT_TRACE2(( "MVAR " )); + + error = face->goto_table( face, TTAG_MVAR, stream, &table_len ); + if ( error ) + { + FT_TRACE2(( "is missing\n" )); + return; + } + + table_offset = FT_STREAM_POS(); + + /* skip minor version */ + if ( FT_READ_USHORT( majorVersion ) || + FT_STREAM_SKIP( 2 ) ) + return; + + if ( majorVersion != 1 ) + { + FT_TRACE2(( "bad table version %d\n", majorVersion )); + return; + } + + if ( FT_NEW( blend->mvar_table ) ) + return; + + /* skip reserved entry and value record size */ + if ( FT_STREAM_SKIP( 4 ) || + FT_READ_USHORT( blend->mvar_table->valueCount ) || + FT_READ_USHORT( store_offset ) ) + return; + + records_offset = FT_STREAM_POS(); + + error = ft_var_load_item_variation_store( + face, + table_offset + store_offset, + &blend->mvar_table->itemStore ); + if ( error ) + return; + + if ( FT_NEW_ARRAY( blend->mvar_table->values, + blend->mvar_table->valueCount ) ) + return; + + if ( FT_STREAM_SEEK( records_offset ) || + FT_FRAME_ENTER( blend->mvar_table->valueCount * GX_VALUE_SIZE ) ) + return; + + value = blend->mvar_table->values; + limit = value + blend->mvar_table->valueCount; + itemStore = &blend->mvar_table->itemStore; + + for ( ; value < limit; value++ ) + { + value->tag = FT_GET_ULONG(); + value->outerIndex = FT_GET_USHORT(); + value->innerIndex = FT_GET_USHORT(); + + if ( value->outerIndex >= itemStore->dataCount || + value->innerIndex >= itemStore->varData[value->outerIndex] + .itemCount ) + { + error = FT_THROW( Invalid_Table ); + break; + } + } + + FT_FRAME_EXIT(); + + if ( error ) + return; + + FT_TRACE2(( "loaded\n" )); + + value = blend->mvar_table->values; + limit = value + blend->mvar_table->valueCount; + + /* save original values of the data MVAR is going to modify */ + for ( ; value < limit; value++ ) + { + FT_Short* p = ft_var_get_value_pointer( face, value->tag ); + + + if ( p ) + value->unmodified = *p; +#ifdef FT_DEBUG_LEVEL_TRACE + else + FT_TRACE1(( "ft_var_load_mvar: Ignoring unknown tag `%c%c%c%c'\n", + (FT_Char)( value->tag >> 24 ), + (FT_Char)( value->tag >> 16 ), + (FT_Char)( value->tag >> 8 ), + (FT_Char)( value->tag ) )); +#endif + } + + face->variation_support |= TT_FACE_FLAG_VAR_MVAR; + } + + + static FT_Error + tt_size_reset_iterator( FT_ListNode node, + void* user ) + { + TT_Size size = (TT_Size)node->data; + + FT_UNUSED( user ); + + + tt_size_reset( size, 1 ); + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ + /* tt_apply_mvar */ + /* */ + /* <Description> */ + /* Apply `MVAR' table adjustments. */ + /* */ + /* <InOut> */ + /* face :: The font face. */ + /* */ + FT_LOCAL_DEF( void ) + tt_apply_mvar( TT_Face face ) + { + GX_Blend blend = face->blend; + GX_Value value, limit; + + + if ( !( face->variation_support & TT_FACE_FLAG_VAR_MVAR ) ) + return; + + value = blend->mvar_table->values; + limit = value + blend->mvar_table->valueCount; + + for ( ; value < limit; value++ ) + { + FT_Short* p = ft_var_get_value_pointer( face, value->tag ); + FT_Int delta; + + + delta = ft_var_get_item_delta( face, + &blend->mvar_table->itemStore, + value->outerIndex, + value->innerIndex ); + + if ( p ) + { + FT_TRACE5(( "value %c%c%c%c (%d unit%s) adjusted by %d unit%s (MVAR)\n", + (FT_Char)( value->tag >> 24 ), + (FT_Char)( value->tag >> 16 ), + (FT_Char)( value->tag >> 8 ), + (FT_Char)( value->tag ), + value->unmodified, + value->unmodified == 1 ? "" : "s", + delta, + delta == 1 ? "" : "s" )); + + /* since we handle both signed and unsigned values as FT_Short, */ + /* ensure proper overflow arithmetic */ + *p = (FT_Short)( value->unmodified + (FT_Short)delta ); + } + } + + /* adjust all derived values */ + { + FT_Face root = &face->root; + + + if ( face->os2.version != 0xFFFFU ) + { + if ( face->os2.sTypoAscender || face->os2.sTypoDescender ) + { + root->ascender = face->os2.sTypoAscender; + root->descender = face->os2.sTypoDescender; + + root->height = root->ascender - root->descender + + face->os2.sTypoLineGap; + } + else + { + root->ascender = (FT_Short)face->os2.usWinAscent; + root->descender = -(FT_Short)face->os2.usWinDescent; + + root->height = root->ascender - root->descender; + } + } + + root->underline_position = face->postscript.underlinePosition - + face->postscript.underlineThickness / 2; + root->underline_thickness = face->postscript.underlineThickness; + + /* iterate over all FT_Size objects and call `tt_size_reset' */ + /* to propagate the metrics changes */ + FT_List_Iterate( &root->sizes_list, + tt_size_reset_iterator, + NULL ); + } + } + + typedef struct GX_GVar_Head_ { FT_Long version; @@ -1000,10 +1486,9 @@ goto Exit; } - /* rough sanity check: offsets can be either 2 or 4 bytes, */ - /* and a single variation needs at least 4 bytes per glyph */ + /* rough sanity check: offsets can be either 2 or 4 bytes */ if ( (FT_ULong)gvar_head.glyphCount * - ( ( gvar_head.flags & 1 ) ? 8 : 6 ) > table_len ) + ( ( gvar_head.flags & 1 ) ? 4 : 2 ) > table_len ) { FT_TRACE1(( "ft_var_load_gvar: invalid number of glyphs\n" )); error = FT_THROW( Invalid_Table ); @@ -1017,8 +1502,10 @@ blend->gv_glyphcnt = gvar_head.glyphCount; offsetToData = gvar_start + gvar_head.offsetToData; - FT_TRACE5(( "gvar: there are %d shared coordinates:\n", - blend->tuplecount )); + FT_TRACE5(( "gvar: there %s %d shared coordinate%s:\n", + blend->tuplecount == 1 ? "is" : "are", + blend->tuplecount, + blend->tuplecount == 1 ? "" : "s" )); if ( FT_NEW_ARRAY( blend->glyphoffsets, blend->gv_glyphcnt + 1 ) ) goto Exit; @@ -1216,6 +1703,180 @@ } + /* convert from design coordinates to normalized coordinates */ + + static void + ft_var_to_normalized( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords, + FT_Fixed* normalized ) + { + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i, j; + FT_Var_Axis* a; + GX_AVarSegment av; + + + blend = face->blend; + mmvar = blend->mmvar; + + if ( num_coords > mmvar->num_axis ) + { + FT_TRACE2(( "ft_var_to_normalized:" + " only using first %d of %d coordinates\n", + mmvar->num_axis, num_coords )); + num_coords = mmvar->num_axis; + } + + /* Axis normalization is a two-stage process. First we normalize */ + /* based on the [min,def,max] values for the axis to be [-1,0,1]. */ + /* Then, if there's an `avar' table, we renormalize this range. */ + + a = mmvar->axis; + for ( i = 0; i < num_coords; i++, a++ ) + { + FT_Fixed coord = coords[i]; + + + FT_TRACE5(( " %d: %.5f\n", i, coord / 65536.0 )); + if ( coord > a->maximum || coord < a->minimum ) + { + FT_TRACE1(( + "ft_var_to_normalized: design coordinate %.5f\n" + " is out of range [%.5f;%.5f]; clamping\n", + coord / 65536.0, + a->minimum / 65536.0, + a->maximum / 65536.0 )); + + if ( coord > a->maximum ) + coord = a->maximum; + else + coord = a->minimum; + } + + if ( coord < a->def ) + normalized[i] = -FT_DivFix( coord - a->def, + a->minimum - a->def ); + else if ( coord > a->def ) + normalized[i] = FT_DivFix( coord - a->def, + a->maximum - a->def ); + else + normalized[i] = 0; + } + + FT_TRACE5(( "\n" )); + + for ( ; i < mmvar->num_axis; i++ ) + normalized[i] = 0; + + if ( blend->avar_segment ) + { + FT_TRACE5(( "normalized design coordinates" + " before applying `avar' data:\n" )); + + av = blend->avar_segment; + for ( i = 0; i < mmvar->num_axis; i++, av++ ) + { + for ( j = 1; j < (FT_UInt)av->pairCount; j++ ) + { + if ( normalized[i] < av->correspondence[j].fromCoord ) + { + FT_TRACE5(( " %.5f\n", normalized[i] / 65536.0 )); + + normalized[i] = + FT_MulDiv( normalized[i] - av->correspondence[j - 1].fromCoord, + av->correspondence[j].toCoord - + av->correspondence[j - 1].toCoord, + av->correspondence[j].fromCoord - + av->correspondence[j - 1].fromCoord ) + + av->correspondence[j - 1].toCoord; + break; + } + } + } + } + } + + + /* convert from normalized coordinates to design coordinates */ + + static void + ft_var_to_design( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords, + FT_Fixed* design ) + { + GX_Blend blend; + FT_MM_Var* mmvar; + FT_Var_Axis* a; + + FT_UInt i, j, nc; + + + blend = face->blend; + + nc = num_coords; + if ( num_coords > blend->num_axis ) + { + FT_TRACE2(( "ft_var_to_design:" + " only using first %d of %d coordinates\n", + blend->num_axis, num_coords )); + nc = blend->num_axis; + } + + for ( i = 0; i < nc; i++ ) + design[i] = coords[i]; + + for ( ; i < num_coords; i++ ) + design[i] = 0; + + if ( blend->avar_segment ) + { + GX_AVarSegment av = blend->avar_segment; + + + FT_TRACE5(( "design coordinates" + " after removing `avar' distortion:\n" )); + + for ( i = 0; i < nc; i++, av++ ) + { + for ( j = 1; j < (FT_UInt)av->pairCount; j++ ) + { + if ( design[i] < av->correspondence[j].toCoord ) + { + design[i] = + FT_MulDiv( design[i] - av->correspondence[j - 1].toCoord, + av->correspondence[j].fromCoord - + av->correspondence[j - 1].fromCoord, + av->correspondence[j].toCoord - + av->correspondence[j - 1].toCoord ) + + av->correspondence[j - 1].fromCoord; + + FT_TRACE5(( " %.5f\n", design[i] / 65536.0 )); + break; + } + } + } + } + + mmvar = blend->mmvar; + a = mmvar->axis; + + for ( i = 0; i < nc; i++, a++ ) + { + if ( design[i] < 0 ) + design[i] = a->def + FT_MulFix( design[i], + a->def - a->minimum ); + else if ( design[i] > 0 ) + design[i] = a->def + FT_MulFix( design[i], + a->maximum - a->def ); + else + design[i] = a->def; + } + } + + /*************************************************************************/ /*************************************************************************/ /***** *****/ @@ -1229,7 +1890,6 @@ { FT_Long version; FT_UShort offsetToData; - FT_UShort countSizePairs; FT_UShort axisCount; FT_UShort axisSize; FT_UShort instanceCount; @@ -1257,7 +1917,8 @@ /* */ /* <Description> */ /* Check that the font's `fvar' table is valid, parse it, and return */ - /* those data. */ + /* those data. It also loads (and parses) the `MVAR' table, if */ + /* possible. */ /* */ /* <InOut> */ /* face :: The font face. */ @@ -1274,19 +1935,33 @@ TT_Get_MM_Var( TT_Face face, FT_MM_Var* *master ) { - FT_Stream stream = face->root.stream; - FT_Memory memory = face->root.memory; + FT_Stream stream = face->root.stream; + FT_Memory memory = face->root.memory; FT_ULong table_len; - FT_Error error = FT_Err_Ok; - FT_ULong fvar_start; - FT_Int i, j; + FT_Error error = FT_Err_Ok; + FT_ULong fvar_start = 0; + FT_UInt i, j; FT_MM_Var* mmvar = NULL; FT_Fixed* next_coords; + FT_Fixed* nsc; FT_String* next_name; FT_Var_Axis* a; + FT_Fixed* c; FT_Var_Named_Style* ns; GX_FVar_Head fvar_head; - FT_Bool usePsName; + FT_Bool usePsName = 0; + FT_UInt num_instances; + FT_UInt num_axes; + FT_UShort* axis_flags; + + FT_Offset mmvar_size; + FT_Offset axis_flags_size; + FT_Offset axis_size; + FT_Offset namedstyle_size; + FT_Offset next_coords_size; + FT_Offset next_name_size; + + FT_Bool need_init; static const FT_Frame_Field fvar_fields[] = { @@ -1295,13 +1970,13 @@ #define FT_STRUCTURE GX_FVar_Head FT_FRAME_START( 16 ), - FT_FRAME_LONG ( version ), - FT_FRAME_USHORT( offsetToData ), - FT_FRAME_USHORT( countSizePairs ), - FT_FRAME_USHORT( axisCount ), - FT_FRAME_USHORT( axisSize ), - FT_FRAME_USHORT( instanceCount ), - FT_FRAME_USHORT( instanceSize ), + FT_FRAME_LONG ( version ), + FT_FRAME_USHORT ( offsetToData ), + FT_FRAME_SKIP_SHORT, + FT_FRAME_USHORT ( axisCount ), + FT_FRAME_USHORT ( axisSize ), + FT_FRAME_USHORT ( instanceCount ), + FT_FRAME_USHORT ( instanceSize ), FT_FRAME_END }; @@ -1325,7 +2000,9 @@ /* read the font data and set up the internal representation */ /* if not already done */ - if ( !face->blend ) + need_init = !face->blend; + + if ( need_init ) { FT_TRACE2(( "FVAR " )); @@ -1362,18 +2039,57 @@ FT_TRACE2(( "loaded\n" )); - FT_TRACE5(( "number of GX style axes: %d\n", fvar_head.axisCount )); + FT_TRACE5(( "%d variation ax%s\n", + fvar_head.axisCount, + fvar_head.axisCount == 1 ? "is" : "es" )); if ( FT_NEW( face->blend ) ) goto Exit; - /* cannot overflow 32-bit arithmetic because of limits above */ - face->blend->mmvar_len = - sizeof ( FT_MM_Var ) + - fvar_head.axisCount * sizeof ( FT_Var_Axis ) + - fvar_head.instanceCount * sizeof ( FT_Var_Named_Style ) + - fvar_head.instanceCount * fvar_head.axisCount * sizeof ( FT_Fixed ) + - 5 * fvar_head.axisCount; + num_axes = fvar_head.axisCount; + face->blend->num_axis = num_axes; + } + else + num_axes = face->blend->num_axis; + + /* `num_instances' holds the number of all named instances, */ + /* including the default instance which might be missing */ + /* in fvar's table of named instances */ + num_instances = (FT_UInt)face->root.style_flags >> 16; + + /* prepare storage area for MM data; this cannot overflow */ + /* 32-bit arithmetic because of the size limits used in the */ + /* `fvar' table validity check in `sfnt_init_face' */ + + /* the various `*_size' variables, which we also use as */ + /* offsets into the `mmlen' array, must be multiples of the */ + /* pointer size (except the last one); without such an */ + /* alignment there might be runtime errors due to */ + /* misaligned addresses */ +#undef ALIGN_SIZE +#define ALIGN_SIZE( n ) \ + ( ( (n) + sizeof (void*) - 1 ) & ~( sizeof (void*) - 1 ) ) + + mmvar_size = ALIGN_SIZE( sizeof ( FT_MM_Var ) ); + axis_flags_size = ALIGN_SIZE( num_axes * + sizeof ( FT_UShort ) ); + axis_size = ALIGN_SIZE( num_axes * + sizeof ( FT_Var_Axis ) ); + namedstyle_size = ALIGN_SIZE( num_instances * + sizeof ( FT_Var_Named_Style ) ); + next_coords_size = ALIGN_SIZE( num_instances * + num_axes * + sizeof ( FT_Fixed ) ); + next_name_size = num_axes * 5; + + if ( need_init ) + { + face->blend->mmvar_len = mmvar_size + + axis_flags_size + + axis_size + + namedstyle_size + + next_coords_size + + next_name_size; if ( FT_ALLOC( mmvar, face->blend->mmvar_len ) ) goto Exit; @@ -1383,28 +2099,33 @@ /* the data gets filled in later on */ mmvar->num_axis = - fvar_head.axisCount; + num_axes; mmvar->num_designs = ~0U; /* meaningless in this context; each glyph */ /* may have a different number of designs */ /* (or tuples, as called by Apple) */ mmvar->num_namedstyles = - fvar_head.instanceCount; + num_instances; + + /* alas, no public field in `FT_Var_Axis' for axis flags */ + axis_flags = + (FT_UShort*)( (char*)mmvar + mmvar_size ); mmvar->axis = - (FT_Var_Axis*)&( mmvar[1] ); + (FT_Var_Axis*)( (char*)axis_flags + axis_flags_size ); mmvar->namedstyle = - (FT_Var_Named_Style*)&( mmvar->axis[fvar_head.axisCount] ); + (FT_Var_Named_Style*)( (char*)mmvar->axis + axis_size ); - next_coords = - (FT_Fixed*)&( mmvar->namedstyle[fvar_head.instanceCount] ); - for ( i = 0; i < fvar_head.instanceCount; i++ ) + next_coords = (FT_Fixed*)( (char*)mmvar->namedstyle + + namedstyle_size ); + for ( i = 0; i < num_instances; i++ ) { mmvar->namedstyle[i].coords = next_coords; - next_coords += fvar_head.axisCount; + next_coords += num_axes; } - next_name = (FT_String*)next_coords; - for ( i = 0; i < fvar_head.axisCount; i++ ) + next_name = (FT_String*)( (char*)mmvar->namedstyle + + namedstyle_size + next_coords_size ); + for ( i = 0; i < num_axes; i++ ) { mmvar->axis[i].name = next_name; next_name += 5; @@ -1416,10 +2137,14 @@ goto Exit; a = mmvar->axis; - for ( i = 0; i < fvar_head.axisCount; i++ ) + for ( i = 0; i < num_axes; i++ ) { GX_FVar_Axis axis_rec; +#ifdef FT_DEBUG_LEVEL_TRACE + int invalid = 0; +#endif + if ( FT_STREAM_READ_FIELDS( fvaraxis_fields, &axis_rec ) ) goto Exit; @@ -1435,47 +2160,189 @@ a->name[3] = (FT_String)( ( a->tag ) & 0xFF ); a->name[4] = '\0'; + *axis_flags = axis_rec.flags; + if ( a->minimum > a->def || a->def > a->maximum ) { - FT_TRACE2(( "TT_Get_MM_Var:" - " invalid \"%s\" axis record; disabling\n", - a->name )); - a->minimum = a->def; a->maximum = a->def; + +#ifdef FT_DEBUG_LEVEL_TRACE + invalid = 1; +#endif } - FT_TRACE5(( " \"%s\": minimum=%.5f, default=%.5f, maximum=%.5f\n", +#ifdef FT_DEBUG_LEVEL_TRACE + if ( i == 0 ) + FT_TRACE5(( " idx tag " + /* " XXX `XXXX'" */ + " minimum default maximum flags\n" )); + /* " XXXX.XXXXX XXXX.XXXXX XXXX.XXXXX 0xXXXX" */ + + FT_TRACE5(( " %3d `%s'" + " %10.5f %10.5f %10.5f 0x%04X%s\n", + i, a->name, a->minimum / 65536.0, a->def / 65536.0, - a->maximum / 65536.0 )); + a->maximum / 65536.0, + *axis_flags, + invalid ? " (invalid, disabled)" : "" )); +#endif a++; + axis_flags++; } FT_TRACE5(( "\n" )); - ns = mmvar->namedstyle; + /* named instance coordinates are stored as design coordinates; */ + /* we have to convert them to normalized coordinates also */ + if ( FT_NEW_ARRAY( face->blend->normalized_stylecoords, + num_axes * num_instances ) ) + goto Exit; + + if ( fvar_head.instanceCount && !face->blend->avar_loaded ) + { + FT_ULong offset = FT_STREAM_POS(); + + + ft_var_load_avar( face ); + + if ( FT_STREAM_SEEK( offset ) ) + goto Exit; + } + + FT_TRACE5(( "%d instance%s\n", + fvar_head.instanceCount, + fvar_head.instanceCount == 1 ? "" : "s" )); + + ns = mmvar->namedstyle; + nsc = face->blend->normalized_stylecoords; for ( i = 0; i < fvar_head.instanceCount; i++, ns++ ) { /* PostScript names add 2 bytes to the instance record size */ if ( FT_FRAME_ENTER( ( usePsName ? 6L : 4L ) + - 4L * fvar_head.axisCount ) ) + 4L * num_axes ) ) goto Exit; ns->strid = FT_GET_USHORT(); (void) /* flags = */ FT_GET_USHORT(); - for ( j = 0; j < fvar_head.axisCount; j++ ) - ns->coords[j] = FT_GET_LONG(); + c = ns->coords; + for ( j = 0; j < num_axes; j++, c++ ) + *c = FT_GET_LONG(); + /* valid psid values are 6, [256;32767], and 0xFFFF */ if ( usePsName ) ns->psid = FT_GET_USHORT(); + else + ns->psid = 0xFFFF; + +#ifdef FT_DEBUG_LEVEL_TRACE + { + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + FT_String* strname = NULL; + FT_String* psname = NULL; + + FT_ULong pos; + + + pos = FT_STREAM_POS(); + + if ( ns->strid != 0xFFFF ) + { + (void)sfnt->get_name( face, + (FT_UShort)ns->strid, + &strname ); + if ( strname && !ft_strcmp( strname, ".notdef" ) ) + strname = NULL; + } + + if ( ns->psid != 0xFFFF ) + { + (void)sfnt->get_name( face, + (FT_UShort)ns->psid, + &psname ); + if ( psname && !ft_strcmp( psname, ".notdef" ) ) + psname = NULL; + } + + (void)FT_STREAM_SEEK( pos ); + + FT_TRACE5(( " instance %d (%s%s%s, %s%s%s)\n", + i, + strname ? "name: `" : "", + strname ? strname : "unnamed", + strname ? "'" : "", + psname ? "PS name: `" : "", + psname ? psname : "no PS name", + psname ? "'" : "" )); + + FT_FREE( strname ); + FT_FREE( psname ); + } +#endif /* FT_DEBUG_LEVEL_TRACE */ + + ft_var_to_normalized( face, num_axes, ns->coords, nsc ); + nsc += num_axes; FT_FRAME_EXIT(); } + + if ( num_instances != fvar_head.instanceCount ) + { + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + FT_Int found, dummy1, dummy2; + FT_UInt strid = ~0U; + + + /* the default instance is missing in array the */ + /* of named instances; try to synthesize an entry */ + found = sfnt->get_name_id( face, + TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY, + &dummy1, + &dummy2 ); + if ( found ) + strid = TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY; + else + { + found = sfnt->get_name_id( face, + TT_NAME_ID_FONT_SUBFAMILY, + &dummy1, + &dummy2 ); + if ( found ) + strid = TT_NAME_ID_FONT_SUBFAMILY; + } + + if ( found ) + { + found = sfnt->get_name_id( face, + TT_NAME_ID_PS_NAME, + &dummy1, + &dummy2 ); + if ( found ) + { + FT_TRACE5(( "TT_Get_MM_Var:" + " Adding default instance to named instances\n" )); + + ns = &mmvar->namedstyle[fvar_head.instanceCount]; + + ns->strid = strid; + ns->psid = TT_NAME_ID_PS_NAME; + + a = mmvar->axis; + c = ns->coords; + for ( j = 0; j < num_axes; j++, a++, c++ ) + *c = a->def; + } + } + } + + ft_var_load_mvar( face ); } /* fill the output array if requested */ @@ -1489,22 +2356,25 @@ goto Exit; FT_MEM_COPY( mmvar, face->blend->mmvar, face->blend->mmvar_len ); + axis_flags = + (FT_UShort*)( (char*)mmvar + mmvar_size ); mmvar->axis = - (FT_Var_Axis*)&( mmvar[1] ); + (FT_Var_Axis*)( (char*)axis_flags + axis_flags_size ); mmvar->namedstyle = - (FT_Var_Named_Style*)&( mmvar->axis[mmvar->num_axis] ); - next_coords = - (FT_Fixed*)&( mmvar->namedstyle[mmvar->num_namedstyles] ); + (FT_Var_Named_Style*)( (char*)mmvar->axis+ axis_size ); + next_coords = (FT_Fixed*)( (char*)mmvar->namedstyle + + namedstyle_size ); for ( n = 0; n < mmvar->num_namedstyles; n++ ) { mmvar->namedstyle[n].coords = next_coords; - next_coords += mmvar->num_axis; + next_coords += num_axes; } a = mmvar->axis; - next_name = (FT_String*)next_coords; - for ( n = 0; n < mmvar->num_axis; n++ ) + next_name = (FT_String*)( (char*)mmvar->namedstyle + + namedstyle_size + next_coords_size ); + for ( n = 0; n < num_axes; n++ ) { a->name = next_name; @@ -1530,41 +2400,19 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* TT_Set_MM_Blend */ - /* */ - /* <Description> */ - /* Set the blend (normalized) coordinates for this instance of the */ - /* font. Check that the `gvar' table is reasonable and does some */ - /* initial preparation. */ - /* */ - /* <InOut> */ - /* face :: The font. */ - /* Initialize the blend structure with `gvar' data. */ - /* */ - /* <Input> */ - /* num_coords :: The number of available coordinates. If it is */ - /* larger than the number of axes, ignore the excess */ - /* values. If it is smaller than the number of axes, */ - /* use the default value (0) for the remaining axes. */ - /* */ - /* coords :: An array of `num_coords', each between [-1,1]. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - FT_LOCAL_DEF( FT_Error ) - TT_Set_MM_Blend( TT_Face face, + static FT_Error + tt_set_mm_blend( TT_Face face, FT_UInt num_coords, - FT_Fixed* coords ) + FT_Fixed* coords, + FT_Bool set_design_coords ) { FT_Error error = FT_Err_Ok; GX_Blend blend; FT_MM_Var* mmvar; FT_UInt i; - FT_Bool is_default_instance = 1; + + FT_Bool all_design_coords = FALSE; + FT_Memory memory = face->root.memory; enum @@ -1589,16 +2437,18 @@ if ( num_coords > mmvar->num_axis ) { - FT_TRACE2(( "TT_Set_MM_Blend: only using first %d of %d coordinates\n", + FT_TRACE2(( "TT_Set_MM_Blend:" + " only using first %d of %d coordinates\n", mmvar->num_axis, num_coords )); num_coords = mmvar->num_axis; } - FT_TRACE5(( "normalized design coordinates:\n" )); + FT_TRACE5(( "TT_Set_MM_Blend:\n" + " normalized design coordinates:\n" )); for ( i = 0; i < num_coords; i++ ) { - FT_TRACE5(( " %.5f\n", coords[i] / 65536.0 )); + FT_TRACE5(( " %.5f\n", coords[i] / 65536.0 )); if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L ) { FT_TRACE1(( "TT_Set_MM_Blend: normalized design coordinate %.5f\n" @@ -1607,17 +2457,23 @@ error = FT_THROW( Invalid_Argument ); goto Exit; } - - if ( coords[i] != 0 ) - is_default_instance = 0; } FT_TRACE5(( "\n" )); - if ( !face->isCFF2 && !blend->glyphoffsets ) + if ( !face->is_cff2 && !blend->glyphoffsets ) if ( FT_SET_ERROR( ft_var_load_gvar( face ) ) ) goto Exit; + if ( !blend->coords ) + { + if ( FT_NEW_ARRAY( blend->coords, mmvar->num_axis ) ) + goto Exit; + + /* the first time we have to compute all design coordinates */ + all_design_coords = TRUE; + } + if ( !blend->normalizedcoords ) { if ( FT_NEW_ARRAY( blend->normalizedcoords, mmvar->num_axis ) ) @@ -1631,6 +2487,12 @@ } else { + FT_Bool have_diff = 0; + FT_UInt j; + FT_Fixed* c; + FT_Fixed* n; + + manageCvt = mcvt_retain; for ( i = 0; i < num_coords; i++ ) @@ -1638,10 +2500,34 @@ if ( blend->normalizedcoords[i] != coords[i] ) { manageCvt = mcvt_load; + have_diff = 1; break; } } + if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) ) + { + FT_UInt idx = (FT_UInt)face->root.face_index >> 16; + + + c = blend->normalizedcoords + i; + n = blend->normalized_stylecoords + idx * mmvar->num_axis + i; + for ( j = i; j < mmvar->num_axis; j++, n++, c++ ) + if ( *c != *n ) + have_diff = 1; + } + else + { + c = blend->normalizedcoords + i; + for ( j = i; j < mmvar->num_axis; j++, c++ ) + if ( *c != 0 ) + have_diff = 1; + } + + /* return value -1 indicates `no change' */ + if ( !have_diff ) + return -1; + for ( ; i < mmvar->num_axis; i++ ) { if ( blend->normalizedcoords[i] != 0 ) @@ -1662,6 +2548,12 @@ coords, num_coords * sizeof ( FT_Fixed ) ); + if ( set_design_coords ) + ft_var_to_design( face, + all_design_coords ? blend->num_axis : num_coords, + blend->normalizedcoords, + blend->coords ); + face->doblend = TRUE; if ( face->cvt ) @@ -1689,7 +2581,9 @@ } } - face->is_default_instance = is_default_instance; + /* enforce recomputation of the PostScript name; */ + FT_FREE( face->postscript_name ); + face->postscript_name = NULL; Exit: return error; @@ -1699,6 +2593,52 @@ /*************************************************************************/ /* */ /* <Function> */ + /* TT_Set_MM_Blend */ + /* */ + /* <Description> */ + /* Set the blend (normalized) coordinates for this instance of the */ + /* font. Check that the `gvar' table is reasonable and does some */ + /* initial preparation. */ + /* */ + /* <InOut> */ + /* face :: The font. */ + /* Initialize the blend structure with `gvar' data. */ + /* */ + /* <Input> */ + /* num_coords :: The number of available coordinates. If it is */ + /* larger than the number of axes, ignore the excess */ + /* values. If it is smaller than the number of axes, */ + /* use the default value (0) for the remaining axes. */ + /* */ + /* coords :: An array of `num_coords', each between [-1,1]. */ + /* */ + /* <Return> */ + /* FreeType error code. 0 means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_MM_Blend( TT_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Error error; + + + error = tt_set_mm_blend( face, num_coords, coords, 1 ); + if ( error ) + return error; + + if ( num_coords ) + face->root.face_flags |= FT_FACE_FLAG_VARIATION; + else + face->root.face_flags &= ~FT_FACE_FLAG_VARIATION; + + return FT_Err_Ok; + } + + + /*************************************************************************/ + /* */ + /* <Function> */ /* TT_Get_MM_Blend */ /* */ /* <Description> */ @@ -1737,10 +2677,19 @@ blend = face->blend; + if ( !blend->coords ) + { + /* select default instance coordinates */ + /* if no instance is selected yet */ + if ( FT_SET_ERROR( tt_set_mm_blend( face, 0, NULL, 1 ) ) ) + return error; + } + nc = num_coords; if ( num_coords > blend->num_axis ) { - FT_TRACE2(( "TT_Get_MM_Blend: only using first %d of %d coordinates\n", + FT_TRACE2(( "TT_Get_MM_Blend:" + " only using first %d of %d coordinates\n", blend->num_axis, num_coords )); nc = blend->num_axis; } @@ -1793,14 +2742,17 @@ FT_UInt num_coords, FT_Fixed* coords ) { - FT_Error error = FT_Err_Ok; - FT_Fixed* normalized = NULL; - GX_Blend blend; - FT_MM_Var* mmvar; - FT_UInt i, j; - FT_Var_Axis* a; - GX_AVarSegment av; - FT_Memory memory = face->root.memory; + FT_Error error = FT_Err_Ok; + GX_Blend blend; + FT_MM_Var* mmvar; + FT_UInt i; + FT_Memory memory = face->root.memory; + + FT_Fixed* c; + FT_Fixed* n; + FT_Fixed* normalized = NULL; + + FT_Bool have_diff = 0; if ( !face->blend ) @@ -1820,83 +2772,81 @@ num_coords = mmvar->num_axis; } - /* Axis normalization is a two-stage process. First we normalize */ - /* based on the [min,def,max] values for the axis to be [-1,0,1]. */ - /* Then, if there's an `avar' table, we renormalize this range. */ - - if ( FT_NEW_ARRAY( normalized, mmvar->num_axis ) ) - goto Exit; - - FT_TRACE5(( "design coordinates:\n" )); - - a = mmvar->axis; - for ( i = 0; i < num_coords; i++, a++ ) + if ( !blend->coords ) { - FT_Fixed coord = coords[i]; - + if ( FT_NEW_ARRAY( blend->coords, mmvar->num_axis ) ) + goto Exit; + } - FT_TRACE5(( " %.5f\n", coord / 65536.0 )); - if ( coord > a->maximum || coord < a->minimum ) + c = blend->coords; + n = coords; + for ( i = 0; i < num_coords; i++, n++, c++ ) + { + if ( *c != *n ) { - FT_TRACE1(( - "TT_Set_Var_Design: design coordinate %.5f\n" - " is out of range [%.5f;%.5f]; clamping\n", - coord / 65536.0, - a->minimum / 65536.0, - a->maximum / 65536.0 )); - - if ( coord > a->maximum) - coord = a->maximum; - else - coord = a->minimum; + *c = *n; + have_diff = 1; } - - if ( coord < a->def ) - normalized[i] = -FT_DivFix( coords[i] - a->def, - a->minimum - a->def ); - else if ( coord > a->def ) - normalized[i] = FT_DivFix( coords[i] - a->def, - a->maximum - a->def ); - else - normalized[i] = 0; } - FT_TRACE5(( "\n" )); + if ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) ) + { + FT_UInt instance_index; + FT_Var_Named_Style* named_style; - for ( ; i < mmvar->num_axis; i++ ) - normalized[i] = 0; - if ( !blend->avar_checked ) - ft_var_load_avar( face ); + instance_index = (FT_UInt)face->root.face_index >> 16; + named_style = mmvar->namedstyle + instance_index - 1; - if ( blend->avar_segment ) + n = named_style->coords + num_coords; + for ( ; i < mmvar->num_axis; i++, n++, c++ ) + { + if ( *c != *n ) + { + *c = *n; + have_diff = 1; + } + } + } + else { - FT_TRACE5(( "normalized design coordinates" - " before applying `avar' data:\n" )); + FT_Var_Axis* a; - av = blend->avar_segment; - for ( i = 0; i < mmvar->num_axis; i++, av++ ) + + a = mmvar->axis + num_coords; + for ( ; i < mmvar->num_axis; i++, a++, c++ ) { - for ( j = 1; j < (FT_UInt)av->pairCount; j++ ) + if ( *c != a->def ) { - if ( normalized[i] < av->correspondence[j].fromCoord ) - { - FT_TRACE5(( " %.5f\n", normalized[i] / 65536.0 )); - - normalized[i] = - FT_MulDiv( normalized[i] - av->correspondence[j - 1].fromCoord, - av->correspondence[j].toCoord - - av->correspondence[j - 1].toCoord, - av->correspondence[j].fromCoord - - av->correspondence[j - 1].fromCoord ) + - av->correspondence[j - 1].toCoord; - break; - } + *c = a->def; + have_diff = 1; } } } - error = TT_Set_MM_Blend( face, mmvar->num_axis, normalized ); + /* return value -1 indicates `no change'; */ + /* we can exit early if `normalizedcoords' is already computed */ + if ( blend->normalizedcoords && !have_diff ) + return -1; + + if ( FT_NEW_ARRAY( normalized, mmvar->num_axis ) ) + goto Exit; + + if ( !face->blend->avar_loaded ) + ft_var_load_avar( face ); + + FT_TRACE5(( "TT_Set_Var_Design:\n" + " normalized design coordinates:\n" )); + ft_var_to_normalized( face, num_coords, blend->coords, normalized ); + + error = tt_set_mm_blend( face, mmvar->num_axis, normalized, 0 ); + if ( error ) + goto Exit; + + if ( num_coords ) + face->root.face_flags |= FT_FACE_FLAG_VARIATION; + else + face->root.face_flags &= ~FT_FACE_FLAG_VARIATION; Exit: FT_FREE( normalized ); @@ -1932,12 +2882,8 @@ FT_Fixed* coords ) { FT_Error error = FT_Err_Ok; - - GX_Blend blend; - FT_MM_Var* mmvar; - FT_Var_Axis* a; - - FT_UInt i, j, nc; + GX_Blend blend; + FT_UInt i, nc; if ( !face->blend ) @@ -1948,10 +2894,19 @@ blend = face->blend; + if ( !blend->coords ) + { + /* select default instance coordinates */ + /* if no instance is selected yet */ + if ( FT_SET_ERROR( tt_set_mm_blend( face, 0, NULL, 1 ) ) ) + return error; + } + nc = num_coords; if ( num_coords > blend->num_axis ) { - FT_TRACE2(( "TT_Get_Var_Design: only using first %d of %d coordinates\n", + FT_TRACE2(( "TT_Get_Var_Design:" + " only using first %d of %d coordinates\n", blend->num_axis, num_coords )); nc = blend->num_axis; } @@ -1959,7 +2914,7 @@ if ( face->doblend ) { for ( i = 0; i < nc; i++ ) - coords[i] = blend->normalizedcoords[i]; + coords[i] = blend->coords[i]; } else { @@ -1970,54 +2925,91 @@ for ( ; i < num_coords; i++ ) coords[i] = 0; - if ( !blend->avar_checked ) - ft_var_load_avar( face ); + return FT_Err_Ok; + } - if ( blend->avar_segment ) - { - GX_AVarSegment av = blend->avar_segment; + /*************************************************************************/ + /* */ + /* <Function> */ + /* TT_Set_Named_Instance */ + /* */ + /* <Description> */ + /* Set the given named instance, also resetting any further */ + /* variation. */ + /* */ + /* <Input> */ + /* face :: A handle to the source face. */ + /* */ + /* instance_index :: The instance index, starting with value 1. */ + /* Value 0 indicates to not use an instance. */ + /* */ + /* <Return> */ + /* FreeType error code. 0~means success. */ + /* */ + FT_LOCAL_DEF( FT_Error ) + TT_Set_Named_Instance( TT_Face face, + FT_UInt instance_index ) + { + FT_Error error = FT_ERR( Invalid_Argument ); + GX_Blend blend; + FT_MM_Var* mmvar; - FT_TRACE5(( "design coordinates" - " after removing `avar' distortion:\n" )); + FT_UInt num_instances; - for ( i = 0; i < nc; i++, av++ ) - { - for ( j = 1; j < (FT_UInt)av->pairCount; j++ ) - { - if ( coords[i] < av->correspondence[j].toCoord ) - { - coords[i] = - FT_MulDiv( coords[i] - av->correspondence[j - 1].toCoord, - av->correspondence[j].fromCoord - - av->correspondence[j - 1].fromCoord, - av->correspondence[j].toCoord - - av->correspondence[j - 1].toCoord ) + - av->correspondence[j - 1].fromCoord; - FT_TRACE5(( " %.5f\n", coords[i] / 65536.0 )); - break; - } - } - } + if ( !face->blend ) + { + if ( FT_SET_ERROR( TT_Get_MM_Var( face, NULL ) ) ) + goto Exit; } + blend = face->blend; mmvar = blend->mmvar; - a = mmvar->axis; - for ( i = 0; i < nc; i++, a++ ) + num_instances = (FT_UInt)face->root.style_flags >> 16; + + /* `instance_index' starts with value 1, thus `>' */ + if ( instance_index > num_instances ) + goto Exit; + + if ( instance_index > 0 && mmvar->namedstyle ) { - if ( coords[i] < 0 ) - coords[i] = a->def + FT_MulFix( coords[i], - a->def - a->minimum ); - else if ( coords[i] > 0 ) - coords[i] = a->def + FT_MulFix( coords[i], - a->maximum - a->def ); - else - coords[i] = a->def; + FT_Memory memory = face->root.memory; + SFNT_Service sfnt = (SFNT_Service)face->sfnt; + + FT_Var_Named_Style* named_style; + FT_String* style_name; + + + named_style = mmvar->namedstyle + instance_index - 1; + + error = sfnt->get_name( face, + (FT_UShort)named_style->strid, + &style_name ); + if ( error ) + goto Exit; + + /* set (or replace) style name */ + FT_FREE( face->root.style_name ); + face->root.style_name = style_name; + + /* finally, select the named instance */ + error = TT_Set_Var_Design( face, + mmvar->num_axis, + named_style->coords ); + if ( error ) + goto Exit; } + else + error = TT_Set_Var_Design( face, 0, NULL ); - return FT_Err_Ok; + face->root.face_index = ( instance_index << 16 ) | + ( face->root.face_index & 0xFFFFL ); + face->root.face_flags &= ~FT_FACE_FLAG_VARIATION; + + Exit: + return error; } @@ -2067,8 +3059,10 @@ FT_Fixed* im_start_coords = NULL; FT_Fixed* im_end_coords = NULL; GX_Blend blend = face->blend; - FT_UInt point_count; - FT_UShort* localpoints; + FT_UInt point_count, spoint_count = 0; + FT_UShort* sharedpoints = NULL; + FT_UShort* localpoints = NULL; + FT_UShort* points; FT_Short* deltas; @@ -2137,11 +3131,24 @@ offsetToData += table_start; - /* The documentation implies there are flags packed into */ - /* `tupleCount', but John Jenkins says that shared points don't apply */ - /* to `cvar', and no other flags are defined. */ + if ( tupleCount & GX_TC_TUPLES_SHARE_POINT_NUMBERS ) + { + here = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, offsetToData ); + + sharedpoints = ft_var_readpackedpoints( stream, + table_len, + &spoint_count ); + offsetToData = FT_Stream_FTell( stream ); + + FT_Stream_SeekSet( stream, here ); + } - FT_TRACE5(( "cvar: there are %d tuples:\n", tupleCount & 0xFFF )); + FT_TRACE5(( "cvar: there %s %d tuple%s:\n", + ( tupleCount & 0xFFF ) == 1 ? "is" : "are", + tupleCount & 0xFFF, + ( tupleCount & 0xFFF ) == 1 ? "" : "s" )); for ( i = 0; i < ( tupleCount & 0xFFF ); i++ ) { @@ -2155,26 +3162,25 @@ tupleDataSize = FT_GET_USHORT(); tupleIndex = FT_GET_USHORT(); - /* There is no provision here for a global tuple coordinate section, */ - /* so John says. There are no tuple indices, just embedded tuples. */ - if ( tupleIndex & GX_TI_EMBEDDED_TUPLE_COORD ) { for ( j = 0; j < blend->num_axis; j++ ) tuple_coords[j] = FT_GET_SHORT() * 4; /* convert from */ /* short frac to fixed */ } - else + else if ( ( tupleIndex & GX_TI_TUPLE_INDEX_MASK ) >= blend->tuplecount ) { - /* skip this tuple; it makes no sense */ - - if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) - for ( j = 0; j < 2 * blend->num_axis; j++ ) - (void)FT_GET_SHORT(); + FT_TRACE2(( "tt_face_vary_cvt:" + " invalid tuple index\n" )); - offsetToData += tupleDataSize; - continue; + error = FT_THROW( Invalid_Table ); + goto Exit; } + else + FT_MEM_COPY( + tuple_coords, + &blend->tuplecoords[( tupleIndex & 0xFFF ) * blend->num_axis], + blend->num_axis * sizeof ( FT_Fixed ) ); if ( tupleIndex & GX_TI_INTERMEDIATE_TUPLE ) { @@ -2189,11 +3195,8 @@ tuple_coords, im_start_coords, im_end_coords ); - if ( /* tuple isn't active for our blend */ - apply == 0 || - /* global points not allowed, */ - /* if they aren't local, makes no sense */ - !( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) ) + + if ( apply == 0 ) /* tuple isn't active for our blend */ { offsetToData += tupleDataSize; continue; @@ -2203,14 +3206,27 @@ FT_Stream_SeekSet( stream, offsetToData ); - localpoints = ft_var_readpackedpoints( stream, - table_len, - &point_count ); - deltas = ft_var_readpackeddeltas( stream, - table_len, - point_count == 0 ? face->cvt_size - : point_count ); - if ( !localpoints || !deltas ) + if ( tupleIndex & GX_TI_PRIVATE_POINT_NUMBERS ) + { + localpoints = ft_var_readpackedpoints( stream, + table_len, + &point_count ); + points = localpoints; + } + else + { + points = sharedpoints; + point_count = spoint_count; + } + + deltas = ft_var_readpackeddeltas( stream, + table_len, + point_count == 0 ? face->cvt_size + : point_count ); + + if ( !points || + !deltas || + ( localpoints == ALL_POINTS && point_count != face->cvt_size ) ) ; /* failure, ignore it */ else if ( localpoints == ALL_POINTS ) @@ -2262,7 +3278,7 @@ FT_Long orig_cvt; - pindex = localpoints[j]; + pindex = points[j]; if ( (FT_ULong)pindex >= face->cvt_size ) continue; @@ -2301,6 +3317,8 @@ FT_FRAME_EXIT(); Exit: + if ( sharedpoints != ALL_POINTS ) + FT_FREE( sharedpoints ); FT_FREE( tuple_coords ); FT_FREE( im_start_coords ); FT_FREE( im_end_coords ); @@ -2389,25 +3407,12 @@ d1 = out1 - in1; d2 = out2 - in2; - if ( out1 == out2 || in1 == in2 ) + /* If the reference points have the same coordinate but different */ + /* delta, inferred delta is zero. Otherwise interpolate. */ + if ( in1 != in2 || out1 == out2 ) { - for ( p = p1; p <= p2; p++ ) - { - out = in_points[p].x; - - if ( out <= in1 ) - out += d1; - else if ( out >= in2 ) - out += d2; - else - out = out1; - - out_points[p].x = out; - } - } - else - { - FT_Fixed scale = FT_DivFix( out2 - out1, in2 - in1 ); + FT_Fixed scale = in1 != in2 ? FT_DivFix( out2 - out1, in2 - in1 ) + : 0; for ( p = p1; p <= p2; p++ ) @@ -2600,7 +3605,6 @@ glyph_start = FT_Stream_FTell( stream ); /* each set of glyph variation data is formatted similarly to `cvar' */ - /* (except we get shared points and global tuples) */ if ( FT_NEW_ARRAY( tuple_coords, blend->num_axis ) || FT_NEW_ARRAY( im_start_coords, blend->num_axis ) || @@ -2637,8 +3641,10 @@ FT_Stream_SeekSet( stream, here ); } - FT_TRACE5(( "gvar: there are %d tuples:\n", - tupleCount & GX_TC_TUPLE_COUNT_MASK )); + FT_TRACE5(( "gvar: there %s %d tuple%s:\n", + ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) == 1 ? "is" : "are", + tupleCount & GX_TC_TUPLE_COUNT_MASK, + ( tupleCount & GX_TC_TUPLE_COUNT_MASK ) == 1 ? "" : "s" )); for ( j = 0; j < n_points; j++ ) points_org[j] = outline->points[j]; @@ -2740,7 +3746,7 @@ FT_Pos delta_y = FT_MulFix( deltas_y[j], apply ); - if ( j < n_points - 3 ) + if ( j < n_points - 4 ) { outline->points[j].x += delta_x; outline->points[j].y += delta_y; @@ -2750,25 +3756,25 @@ /* To avoid double adjustment of advance width or height, */ /* adjust phantom points only if there is no HVAR or VVAR */ /* support, respectively. */ - if ( j == ( n_points - 3 ) && - !( face->variation_support & - TT_FACE_FLAG_VAR_HADVANCE ) ) + if ( j == ( n_points - 4 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_LSB ) ) + outline->points[j].x += delta_x; + + else if ( j == ( n_points - 3 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_HADVANCE ) ) outline->points[j].x += delta_x; else if ( j == ( n_points - 2 ) && !( face->variation_support & - TT_FACE_FLAG_VAR_LSB ) ) - outline->points[j].x += delta_x; + TT_FACE_FLAG_VAR_TSB ) ) + outline->points[j].y += delta_y; else if ( j == ( n_points - 1 ) && !( face->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) ) outline->points[j].y += delta_y; - - else if ( j == ( n_points - 0 ) && - !( face->variation_support & - TT_FACE_FLAG_VAR_TSB ) ) - outline->points[j].y += delta_y; } #ifdef FT_DEBUG_LEVEL_TRACE @@ -2835,8 +3841,36 @@ FT_Pos delta_y = points_out[j].y - points_org[j].y; - outline->points[j].x += delta_x; - outline->points[j].y += delta_y; + if ( j < n_points - 4 ) + { + outline->points[j].x += delta_x; + outline->points[j].y += delta_y; + } + else + { + /* To avoid double adjustment of advance width or height, */ + /* adjust phantom points only if there is no HVAR or VVAR */ + /* support, respectively. */ + if ( j == ( n_points - 4 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_LSB ) ) + outline->points[j].x += delta_x; + + else if ( j == ( n_points - 3 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_HADVANCE ) ) + outline->points[j].x += delta_x; + + else if ( j == ( n_points - 2 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_TSB ) ) + outline->points[j].y += delta_y; + + else if ( j == ( n_points - 1 ) && + !( face->variation_support & + TT_FACE_FLAG_VAR_VADVANCE ) ) + outline->points[j].y += delta_y; + } #ifdef FT_DEBUG_LEVEL_TRACE if ( delta_x || delta_y ) @@ -2902,16 +3936,19 @@ tt_get_var_blend( TT_Face face, FT_UInt *num_coords, FT_Fixed* *coords, + FT_Fixed* *normalizedcoords, FT_MM_Var* *mm_var ) { if ( face->blend ) { if ( num_coords ) - *num_coords = face->blend->num_axis; + *num_coords = face->blend->num_axis; if ( coords ) - *coords = face->blend->normalizedcoords; + *coords = face->blend->coords; + if ( normalizedcoords ) + *normalizedcoords = face->blend->normalizedcoords; if ( mm_var ) - *mm_var = face->blend->mmvar; + *mm_var = face->blend->mmvar; } else { @@ -2927,6 +3964,35 @@ } + static void + ft_var_done_item_variation_store( TT_Face face, + GX_ItemVarStore itemStore ) + { + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_UInt i; + + + if ( itemStore->varData ) + { + for ( i = 0; i < itemStore->dataCount; i++ ) + { + FT_FREE( itemStore->varData[i].regionIndices ); + FT_FREE( itemStore->varData[i].deltaSet ); + } + + FT_FREE( itemStore->varData ); + } + + if ( itemStore->varRegionList ) + { + for ( i = 0; i < itemStore->regionCount; i++ ) + FT_FREE( itemStore->varRegionList[i].axisList ); + + FT_FREE( itemStore->varRegionList ); + } + } + + /*************************************************************************/ /* */ /* <Function> */ @@ -2950,7 +4016,9 @@ /* blend->num_axis might not be set up yet */ num_axes = blend->mmvar->num_axis; + FT_FREE( blend->coords ); FT_FREE( blend->normalizedcoords ); + FT_FREE( blend->normalized_stylecoords ); FT_FREE( blend->mmvar ); if ( blend->avar_segment ) @@ -2962,35 +4030,45 @@ if ( blend->hvar_table ) { - if ( blend->hvar_table->itemStore.varData ) - { - for ( i = 0; i < blend->hvar_table->itemStore.dataCount; i++ ) - { - FT_FREE( blend->hvar_table->itemStore.varData[i].regionIndices ); - FT_FREE( blend->hvar_table->itemStore.varData[i].deltaSet ); - } - FT_FREE( blend->hvar_table->itemStore.varData ); - } - - if ( blend->hvar_table->itemStore.varRegionList ) - { - for ( i = 0; i < blend->hvar_table->itemStore.regionCount; i++ ) - FT_FREE( blend->hvar_table->itemStore.varRegionList[i].axisList ); - FT_FREE( blend->hvar_table->itemStore.varRegionList ); - } + ft_var_done_item_variation_store( face, + &blend->hvar_table->itemStore ); FT_FREE( blend->hvar_table->widthMap.innerIndex ); FT_FREE( blend->hvar_table->widthMap.outerIndex ); FT_FREE( blend->hvar_table ); } + if ( blend->vvar_table ) + { + ft_var_done_item_variation_store( face, + &blend->vvar_table->itemStore ); + + FT_FREE( blend->vvar_table->widthMap.innerIndex ); + FT_FREE( blend->vvar_table->widthMap.outerIndex ); + FT_FREE( blend->vvar_table ); + } + + if ( blend->mvar_table ) + { + ft_var_done_item_variation_store( face, + &blend->mvar_table->itemStore ); + + FT_FREE( blend->mvar_table->values ); + FT_FREE( blend->mvar_table ); + } + FT_FREE( blend->tuplecoords ); FT_FREE( blend->glyphoffsets ); FT_FREE( blend ); } } -#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ +#else /* !TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + /* ANSI C doesn't like empty source files */ + typedef int _tt_gxvar_dummy; + +#endif /* !TT_CONFIG_OPTION_GX_VAR_SUPPORT */ /* END */ diff --git a/modules/freetype2/src/truetype/ttgxvar.h b/modules/freetype2/src/truetype/ttgxvar.h index 215e109cc..a37bb9026 100644 --- a/modules/freetype2/src/truetype/ttgxvar.h +++ b/modules/freetype2/src/truetype/ttgxvar.h @@ -4,7 +4,7 @@ /* */ /* TrueType GX Font Variation loader (specification) */ /* */ -/* Copyright 2004-2016 by */ +/* Copyright 2004-2018 by */ /* David Turner, Robert Wilhelm, Werner Lemberg and George Williams. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -27,6 +27,8 @@ FT_BEGIN_HEADER +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /*************************************************************************/ /* */ /* <Struct> */ @@ -61,7 +63,7 @@ FT_BEGIN_HEADER } GX_AVarSegmentRec, *GX_AVarSegment; - typedef struct GX_HVarDataRec_ + typedef struct GX_ItemVarDataRec_ { FT_UInt itemCount; /* number of delta sets per item */ FT_UInt regionIdxCount; /* number of region indices in this data */ @@ -70,7 +72,7 @@ FT_BEGIN_HEADER FT_Short* deltaSet; /* array of `itemCount' deltas */ /* use `innerIndex' for this array */ - } GX_HVarDataRec, *GX_HVarData; + } GX_ItemVarDataRec, *GX_ItemVarData; /* contribution of one axis to a region */ @@ -83,53 +85,128 @@ FT_BEGIN_HEADER } GX_AxisCoordsRec, *GX_AxisCoords; - typedef struct GX_HVarRegionRec_ + typedef struct GX_VarRegionRec_ { GX_AxisCoords axisList; /* array of axisCount records */ - } GX_HVarRegionRec, *GX_HVarRegion; + } GX_VarRegionRec, *GX_VarRegion; - /* HVAR item variation store */ - typedef struct GX_HVStoreRec_ + /* item variation store */ + typedef struct GX_ItemVarStoreRec_ { - FT_UInt dataCount; - GX_HVarData varData; /* array of dataCount records; */ - /* use `outerIndex' for this array */ - FT_UShort axisCount; - FT_UInt regionCount; /* total number of regions defined */ - GX_HVarRegion varRegionList; + FT_UInt dataCount; + GX_ItemVarData varData; /* array of dataCount records; */ + /* use `outerIndex' for this array */ + FT_UShort axisCount; + FT_UInt regionCount; /* total number of regions defined */ + GX_VarRegion varRegionList; - } GX_HVStoreRec, *GX_HVStore; + } GX_ItemVarStoreRec, *GX_ItemVarStore; - typedef struct GX_WidthMapRec_ + typedef struct GX_DeltaSetIdxMapRec_ { FT_UInt mapCount; FT_UInt* outerIndex; /* indices to item var data */ FT_UInt* innerIndex; /* indices to delta set */ - } GX_WidthMapRec, *GX_WidthMap; + } GX_DeltaSetIdxMapRec, *GX_DeltaSetIdxMap; /*************************************************************************/ /* */ /* <Struct> */ - /* GX_HVarTableRec */ + /* GX_HVVarTableRec */ /* */ /* <Description> */ - /* Data from the `HVAR' table. */ + /* Data from either the `HVAR' or `VVAR' table. */ /* */ - typedef struct GX_HVarTableRec_ + typedef struct GX_HVVarTableRec_ { - GX_HVStoreRec itemStore; /* Item Variation Store */ - GX_WidthMapRec widthMap; /* Advance Width Mapping */ + GX_ItemVarStoreRec itemStore; /* Item Variation Store */ + GX_DeltaSetIdxMapRec widthMap; /* Advance Width Mapping */ + #if 0 - GX_LSBMap LsbMap; /* not implemented */ - GX_RSBMap RsbMap; /* not implemented */ + GX_DeltaSetIdxMapRec lsbMap; /* not implemented */ + GX_DeltaSetIdxMapRec rsbMap; /* not implemented */ + + GX_DeltaSetIdxMapRec tsbMap; /* not implemented */ + GX_DeltaSetIdxMapRec bsbMap; /* not implemented */ + GX_DeltaSetIdxMapRec vorgMap; /* not implemented */ #endif - } GX_HVarTableRec, *GX_HVarTable; + } GX_HVVarTableRec, *GX_HVVarTable; + + +#define MVAR_TAG_GASP_0 FT_MAKE_TAG( 'g', 's', 'p', '0' ) +#define MVAR_TAG_GASP_1 FT_MAKE_TAG( 'g', 's', 'p', '1' ) +#define MVAR_TAG_GASP_2 FT_MAKE_TAG( 'g', 's', 'p', '2' ) +#define MVAR_TAG_GASP_3 FT_MAKE_TAG( 'g', 's', 'p', '3' ) +#define MVAR_TAG_GASP_4 FT_MAKE_TAG( 'g', 's', 'p', '4' ) +#define MVAR_TAG_GASP_5 FT_MAKE_TAG( 'g', 's', 'p', '5' ) +#define MVAR_TAG_GASP_6 FT_MAKE_TAG( 'g', 's', 'p', '6' ) +#define MVAR_TAG_GASP_7 FT_MAKE_TAG( 'g', 's', 'p', '7' ) +#define MVAR_TAG_GASP_8 FT_MAKE_TAG( 'g', 's', 'p', '8' ) +#define MVAR_TAG_GASP_9 FT_MAKE_TAG( 'g', 's', 'p', '9' ) + +#define MVAR_TAG_CPHT FT_MAKE_TAG( 'c', 'p', 'h', 't' ) +#define MVAR_TAG_HASC FT_MAKE_TAG( 'h', 'a', 's', 'c' ) +#define MVAR_TAG_HCLA FT_MAKE_TAG( 'h', 'c', 'l', 'a' ) +#define MVAR_TAG_HCLD FT_MAKE_TAG( 'h', 'c', 'l', 'd' ) +#define MVAR_TAG_HCOF FT_MAKE_TAG( 'h', 'c', 'o', 'f' ) +#define MVAR_TAG_HCRN FT_MAKE_TAG( 'h', 'c', 'r', 'n' ) +#define MVAR_TAG_HCRS FT_MAKE_TAG( 'h', 'c', 'r', 's' ) +#define MVAR_TAG_HDSC FT_MAKE_TAG( 'h', 'd', 's', 'c' ) +#define MVAR_TAG_HLGP FT_MAKE_TAG( 'h', 'l', 'g', 'p' ) +#define MVAR_TAG_SBXO FT_MAKE_TAG( 's', 'b', 'x', 'o' ) +#define MVAR_TAG_SBXS FT_MAKE_TAG( 's', 'b', 'x', 's' ) +#define MVAR_TAG_SBYO FT_MAKE_TAG( 's', 'b', 'y', 'o' ) +#define MVAR_TAG_SBYS FT_MAKE_TAG( 's', 'b', 'y', 's' ) +#define MVAR_TAG_SPXO FT_MAKE_TAG( 's', 'p', 'x', 'o' ) +#define MVAR_TAG_SPXS FT_MAKE_TAG( 's', 'p', 'x', 's' ) +#define MVAR_TAG_SPYO FT_MAKE_TAG( 's', 'p', 'y', 'o' ) +#define MVAR_TAG_SPYS FT_MAKE_TAG( 's', 'p', 'y', 's' ) +#define MVAR_TAG_STRO FT_MAKE_TAG( 's', 't', 'r', 'o' ) +#define MVAR_TAG_STRS FT_MAKE_TAG( 's', 't', 'r', 's' ) +#define MVAR_TAG_UNDO FT_MAKE_TAG( 'u', 'n', 'd', 'o' ) +#define MVAR_TAG_UNDS FT_MAKE_TAG( 'u', 'n', 'd', 's' ) +#define MVAR_TAG_VASC FT_MAKE_TAG( 'v', 'a', 's', 'c' ) +#define MVAR_TAG_VCOF FT_MAKE_TAG( 'v', 'c', 'o', 'f' ) +#define MVAR_TAG_VCRN FT_MAKE_TAG( 'v', 'c', 'r', 'n' ) +#define MVAR_TAG_VCRS FT_MAKE_TAG( 'v', 'c', 'r', 's' ) +#define MVAR_TAG_VDSC FT_MAKE_TAG( 'v', 'd', 's', 'c' ) +#define MVAR_TAG_VLGP FT_MAKE_TAG( 'v', 'l', 'g', 'p' ) +#define MVAR_TAG_XHGT FT_MAKE_TAG( 'x', 'h', 'g', 't' ) + + + typedef struct GX_ValueRec_ + { + FT_ULong tag; + FT_UShort outerIndex; + FT_UShort innerIndex; + + FT_Short unmodified; /* values are either FT_Short or FT_UShort */ + + } GX_ValueRec, *GX_Value; + + + /*************************************************************************/ + /* */ + /* <Struct> */ + /* GX_MVarTableRec */ + /* */ + /* <Description> */ + /* Data from the `MVAR' table. */ + /* */ + typedef struct GX_MVarTableRec_ + { + FT_UShort valueCount; + + GX_ItemVarStoreRec itemStore; /* Item Variation Store */ + GX_Value values; /* Value Records */ + + } GX_MVarTableRec, *GX_MVarTable; /*************************************************************************/ @@ -139,37 +216,120 @@ FT_BEGIN_HEADER /* */ /* <Description> */ /* Data for interpolating a font from a distortable font specified */ - /* by the GX *var tables ([fgca]var). */ + /* by the GX *var tables ([fgcahvm]var). */ /* */ /* <Fields> */ - /* num_axis :: The number of axes along which interpolation */ - /* may happen */ + /* num_axis :: */ + /* The number of axes along which interpolation may happen. */ + /* */ + /* coords :: */ + /* An array of design coordinates (in user space) indicating the */ + /* contribution along each axis to the final interpolated font. */ + /* `normalizedcoords' holds the same values. */ + /* */ + /* normalizedcoords :: */ + /* An array of normalized values (between [-1,1]) indicating the */ + /* contribution along each axis to the final interpolated font. */ + /* `coords' holds the same values. */ + /* */ + /* mmvar :: */ + /* Data from the `fvar' table. */ + /* */ + /* mmvar_len :: */ + /* The length of the `mmvar' structure. */ + /* */ + /* normalized_stylecoords :: */ + /* A two-dimensional array that holds the named instance data from */ + /* `mmvar' as normalized values. */ + /* */ + /* avar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `avar' */ + /* table. */ + /* */ + /* avar_segment :: */ + /* Data from the `avar' table. */ + /* */ + /* hvar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `hvar' */ + /* table. */ /* */ - /* normalizedcoords :: A normalized value (between [-1,1]) indicating */ - /* the contribution along each axis to the final */ - /* interpolated font. */ + /* hvar_checked :: */ + /* A Boolean; if set, FreeType successfully loaded and parsed the */ + /* `hvar' table. */ + /* */ + /* hvar_error :: */ + /* If loading and parsing of the `hvar' table failed, this field */ + /* holds the corresponding error code. */ + /* */ + /* hvar_table :: */ + /* Data from the `hvar' table. */ + /* */ + /* vvar_loaded :: */ + /* A Boolean; if set, FreeType tried to load (and parse) the `vvar' */ + /* table. */ + /* */ + /* vvar_checked :: */ + /* A Boolean; if set, FreeType successfully loaded and parsed the */ + /* `vvar' table. */ + /* */ + /* vvar_error :: */ + /* If loading and parsing of the `vvar' table failed, this field */ + /* holds the corresponding error code. */ + /* */ + /* vvar_table :: */ + /* Data from the `vvar' table. */ + /* */ + /* mvar_table :: */ + /* Data from the `mvar' table. */ + /* */ + /* tuplecount :: */ + /* The number of shared tuples in the `gvar' table. */ + /* */ + /* tuplecoords :: */ + /* A two-dimensional array that holds the shared tuple coordinates */ + /* in the `gvar' table. */ + /* */ + /* gv_glyphcnt :: */ + /* The number of glyphs handled in the `gvar' table. */ + /* */ + /* glyphoffsets :: */ + /* Offsets into the glyph variation data array. */ + /* */ + /* gvar_size :: */ + /* The size of the `gvar' table. */ /* */ typedef struct GX_BlendRec_ { FT_UInt num_axis; + FT_Fixed* coords; FT_Fixed* normalizedcoords; FT_MM_Var* mmvar; FT_Offset mmvar_len; - FT_Bool avar_checked; - GX_AVarSegment avar_segment; + FT_Fixed* normalized_stylecoords; + /* normalized_stylecoords[num_namedstyles][num_axis] */ + + FT_Bool avar_loaded; + GX_AVarSegment avar_segment; /* avar_segment[num_axis] */ FT_Bool hvar_loaded; FT_Bool hvar_checked; FT_Error hvar_error; - GX_HVarTable hvar_table; + GX_HVVarTable hvar_table; + + FT_Bool vvar_loaded; + FT_Bool vvar_checked; + FT_Error vvar_error; + GX_HVVarTable vvar_table; + + GX_MVarTable mvar_table; - FT_UInt tuplecount; /* shared tuples in `gvar' */ - FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ + FT_UInt tuplecount; + FT_Fixed* tuplecoords; /* tuplecoords[tuplecount][num_axis] */ FT_UInt gv_glyphcnt; - FT_ULong* glyphoffsets; + FT_ULong* glyphoffsets; /* glyphoffsets[gv_glyphcnt + 1] */ FT_ULong gvar_size; @@ -244,6 +404,10 @@ FT_BEGIN_HEADER FT_Fixed* coords ); FT_LOCAL( FT_Error ) + TT_Set_Named_Instance( TT_Face face, + FT_UInt instance_index ); + + FT_LOCAL( FT_Error ) tt_face_vary_cvt( TT_Face face, FT_Stream stream ); @@ -260,14 +424,25 @@ FT_BEGIN_HEADER FT_Int *adelta ); FT_LOCAL( FT_Error ) + tt_vadvance_adjust( TT_Face face, + FT_UInt gindex, + FT_Int *adelta ); + + FT_LOCAL( void ) + tt_apply_mvar( TT_Face face ); + + FT_LOCAL( FT_Error ) tt_get_var_blend( TT_Face face, FT_UInt *num_coords, FT_Fixed* *coords, + FT_Fixed* *normalizedcoords, FT_MM_Var* *mm_var ); FT_LOCAL( void ) tt_done_blend( TT_Face face ); +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + FT_END_HEADER diff --git a/modules/freetype2/src/truetype/ttinterp.c b/modules/freetype2/src/truetype/ttinterp.c index 4a506ee81..da9b595ab 100644 --- a/modules/freetype2/src/truetype/ttinterp.c +++ b/modules/freetype2/src/truetype/ttinterp.c @@ -4,7 +4,7 @@ /* */ /* TrueType bytecode interpreter (body). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -25,7 +25,7 @@ #include FT_INTERNAL_CALC_H #include FT_TRIGONOMETRY_H #include FT_SYSTEM_H -#include FT_TRUETYPE_DRIVER_H +#include FT_DRIVER_H #include FT_MULTIPLE_MASTERS_H #include "ttinterp.h" @@ -65,11 +65,15 @@ TT_INTERPRETER_VERSION_40 ) #endif -#define PROJECT( v1, v2 ) \ - exc->func_project( exc, (v1)->x - (v2)->x, (v1)->y - (v2)->y ) +#define PROJECT( v1, v2 ) \ + exc->func_project( exc, \ + SUB_LONG( (v1)->x, (v2)->x ), \ + SUB_LONG( (v1)->y, (v2)->y ) ) -#define DUALPROJ( v1, v2 ) \ - exc->func_dualproj( exc, (v1)->x - (v2)->x, (v1)->y - (v2)->y ) +#define DUALPROJ( v1, v2 ) \ + exc->func_dualproj( exc, \ + SUB_LONG( (v1)->x, (v2)->x ), \ + SUB_LONG( (v1)->y, (v2)->y ) ) #define FAST_PROJECT( v ) \ exc->func_project( exc, (v)->x, (v)->y ) @@ -402,7 +406,7 @@ exec->IDefs = size->instruction_defs; exec->pointSize = size->point_size; exec->tt_metrics = size->ttmetrics; - exec->metrics = size->metrics; + exec->metrics = *size->metrics; exec->maxFunc = size->max_func; exec->maxIns = size->max_ins; @@ -1656,7 +1660,7 @@ /* zone :: The affected glyph zone. */ /* */ /* <Note> */ - /* See `ttinterp.h' for details on backwards compatibility mode. */ + /* See `ttinterp.h' for details on backward compatibility mode. */ /* `Touches' the point. */ /* */ static void @@ -1676,7 +1680,10 @@ if ( SUBPIXEL_HINTING_INFINALITY && ( !exc->ignore_x_mode || ( exc->sph_tweak_flags & SPH_TWEAK_ALLOW_X_DMOVE ) ) ) - zone->cur[point].x += FT_MulDiv( distance, v, exc->F_dot_P ); + zone->cur[point].x = ADD_LONG( zone->cur[point].x, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); else #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ @@ -1684,13 +1691,19 @@ /* Exception to the post-IUP curfew: Allow the x component of */ /* diagonal moves, but only post-IUP. DejaVu tries to adjust */ /* diagonal stems like on `Z' and `z' post-IUP. */ - if ( SUBPIXEL_HINTING_MINIMAL && !exc->backwards_compatibility ) - zone->cur[point].x += FT_MulDiv( distance, v, exc->F_dot_P ); + if ( SUBPIXEL_HINTING_MINIMAL && !exc->backward_compatibility ) + zone->cur[point].x = ADD_LONG( zone->cur[point].x, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); else #endif if ( NO_SUBPIXEL_HINTING ) - zone->cur[point].x += FT_MulDiv( distance, v, exc->F_dot_P ); + zone->cur[point].x = ADD_LONG( zone->cur[point].x, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; } @@ -1700,12 +1713,15 @@ if ( v != 0 ) { #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( !( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && - exc->iupx_called && - exc->iupy_called ) ) + if ( !( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility && + exc->iupx_called && + exc->iupy_called ) ) #endif - zone->cur[point].y += FT_MulDiv( distance, v, exc->F_dot_P ); + zone->cur[point].y = ADD_LONG( zone->cur[point].y, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; } @@ -1741,12 +1757,18 @@ v = exc->GS.freeVector.x; if ( v != 0 ) - zone->org[point].x += FT_MulDiv( distance, v, exc->F_dot_P ); + zone->org[point].x = ADD_LONG( zone->org[point].x, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); v = exc->GS.freeVector.y; if ( v != 0 ) - zone->org[point].y += FT_MulDiv( distance, v, exc->F_dot_P ); + zone->org[point].y = ADD_LONG( zone->org[point].y, + FT_MulDiv( distance, + v, + exc->F_dot_P ) ); } @@ -1756,7 +1778,7 @@ /* */ /* The following versions are used whenever both vectors are both */ /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ - /* See `ttinterp.h' for details on backwards compatibility mode. */ + /* See `ttinterp.h' for details on backward compatibility mode. */ /* */ /*************************************************************************/ @@ -1769,18 +1791,18 @@ { #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY if ( SUBPIXEL_HINTING_INFINALITY && !exc->ignore_x_mode ) - zone->cur[point].x += distance; + zone->cur[point].x = ADD_LONG( zone->cur[point].x, distance ); else #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( SUBPIXEL_HINTING_MINIMAL && !exc->backwards_compatibility ) - zone->cur[point].x += distance; + if ( SUBPIXEL_HINTING_MINIMAL && !exc->backward_compatibility ) + zone->cur[point].x = ADD_LONG( zone->cur[point].x, distance ); else #endif if ( NO_SUBPIXEL_HINTING ) - zone->cur[point].x += distance; + zone->cur[point].x = ADD_LONG( zone->cur[point].x, distance ); zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; } @@ -1796,10 +1818,10 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL if ( !( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && + exc->backward_compatibility && exc->iupx_called && exc->iupy_called ) ) #endif - zone->cur[point].y += distance; + zone->cur[point].y = ADD_LONG( zone->cur[point].y, distance ); zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; } @@ -1823,7 +1845,7 @@ { FT_UNUSED( exc ); - zone->org[point].x += distance; + zone->org[point].x = ADD_LONG( zone->org[point].x, distance ); } @@ -1835,7 +1857,7 @@ { FT_UNUSED( exc ); - zone->org[point].y += distance; + zone->org[point].y = ADD_LONG( zone->org[point].y, distance ); } @@ -1873,13 +1895,13 @@ if ( distance >= 0 ) { - val = distance + compensation; + val = ADD_LONG( distance, compensation ); if ( val < 0 ) val = 0; } else { - val = distance - compensation; + val = SUB_LONG( distance, compensation ); if ( val > 0 ) val = 0; } @@ -1915,13 +1937,14 @@ if ( distance >= 0 ) { - val = FT_PIX_ROUND( distance + compensation ); + val = FT_PIX_ROUND_LONG( ADD_LONG( distance, compensation ) ); if ( val < 0 ) val = 0; } else { - val = -FT_PIX_ROUND( compensation - distance ); + val = NEG_LONG( FT_PIX_ROUND_LONG( SUB_LONG( compensation, + distance ) ) ); if ( val > 0 ) val = 0; } @@ -1958,13 +1981,16 @@ if ( distance >= 0 ) { - val = FT_PIX_FLOOR( distance + compensation ) + 32; + val = ADD_LONG( FT_PIX_FLOOR( ADD_LONG( distance, compensation ) ), + 32 ); if ( val < 0 ) val = 32; } else { - val = -( FT_PIX_FLOOR( compensation - distance ) + 32 ); + val = NEG_LONG( ADD_LONG( FT_PIX_FLOOR( SUB_LONG( compensation, + distance ) ), + 32 ) ); if ( val > 0 ) val = -32; } @@ -2001,13 +2027,13 @@ if ( distance >= 0 ) { - val = FT_PIX_FLOOR( distance + compensation ); + val = FT_PIX_FLOOR( ADD_LONG( distance, compensation ) ); if ( val < 0 ) val = 0; } else { - val = -FT_PIX_FLOOR( compensation - distance ); + val = NEG_LONG( FT_PIX_FLOOR( SUB_LONG( compensation, distance ) ) ); if ( val > 0 ) val = 0; } @@ -2044,13 +2070,14 @@ if ( distance >= 0 ) { - val = FT_PIX_CEIL( distance + compensation ); + val = FT_PIX_CEIL_LONG( ADD_LONG( distance, compensation ) ); if ( val < 0 ) val = 0; } else { - val = -FT_PIX_CEIL( compensation - distance ); + val = NEG_LONG( FT_PIX_CEIL_LONG( SUB_LONG( compensation, + distance ) ) ); if ( val > 0 ) val = 0; } @@ -2087,13 +2114,14 @@ if ( distance >= 0 ) { - val = FT_PAD_ROUND( distance + compensation, 32 ); + val = FT_PAD_ROUND_LONG( ADD_LONG( distance, compensation ), 32 ); if ( val < 0 ) val = 0; } else { - val = -FT_PAD_ROUND( compensation - distance, 32 ); + val = NEG_LONG( FT_PAD_ROUND_LONG( SUB_LONG( compensation, distance ), + 32 ) ); if ( val > 0 ) val = 0; } @@ -2134,17 +2162,19 @@ if ( distance >= 0 ) { - val = ( distance - exc->phase + exc->threshold + compensation ) & + val = ADD_LONG( distance, + exc->threshold - exc->phase + compensation ) & -exc->period; - val += exc->phase; + val = ADD_LONG( val, exc->phase ); if ( val < 0 ) val = exc->phase; } else { - val = -( ( exc->threshold - exc->phase - distance + compensation ) & - -exc->period ); - val -= exc->phase; + val = NEG_LONG( SUB_LONG( exc->threshold - exc->phase + compensation, + distance ) & + -exc->period ); + val = SUB_LONG( val, exc->phase ); if ( val > 0 ) val = -exc->phase; } @@ -2183,17 +2213,19 @@ if ( distance >= 0 ) { - val = ( ( distance - exc->phase + exc->threshold + compensation ) / + val = ( ADD_LONG( distance, + exc->threshold - exc->phase + compensation ) / exc->period ) * exc->period; - val += exc->phase; + val = ADD_LONG( val, exc->phase ); if ( val < 0 ) val = exc->phase; } else { - val = -( ( ( exc->threshold - exc->phase - distance + compensation ) / - exc->period ) * exc->period ); - val -= exc->phase; + val = NEG_LONG( ( SUB_LONG( exc->threshold - exc->phase + compensation, + distance ) / + exc->period ) * exc->period ); + val = SUB_LONG( val, exc->phase ); if ( val > 0 ) val = -exc->phase; } @@ -2826,7 +2858,7 @@ static void Ins_ADD( FT_Long* args ) { - args[0] += args[1]; + args[0] = ADD_LONG( args[0], args[1] ); } @@ -2839,7 +2871,7 @@ static void Ins_SUB( FT_Long* args ) { - args[0] -= args[1]; + args[0] = SUB_LONG( args[0], args[1] ); } @@ -2882,7 +2914,8 @@ static void Ins_ABS( FT_Long* args ) { - args[0] = FT_ABS( args[0] ); + if ( args[0] < 0 ) + args[0] = NEG_LONG( args[0] ); } @@ -2895,7 +2928,7 @@ static void Ins_NEG( FT_Long* args ) { - args[0] = -args[0]; + args[0] = NEG_LONG( args[0] ); } @@ -2921,7 +2954,7 @@ static void Ins_CEILING( FT_Long* args ) { - args[0] = FT_PIX_CEIL( args[0] ); + args[0] = FT_PIX_CEIL_LONG( args[0] ); } @@ -3256,7 +3289,10 @@ if ( args[0] < 0 ) exc->error = FT_THROW( Bad_Argument ); else - exc->GS.loop = args[0]; + { + /* we heuristically limit the number of loops to 16 bits */ + exc->GS.loop = args[0] > 0xFFFFL ? 0xFFFFL : args[0]; + } } @@ -3564,6 +3600,13 @@ #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ + /* FDEF is only allowed in `prep' or `fpgm' */ + if ( exc->curRange == tt_coderange_glyph ) + { + exc->error = FT_THROW( DEF_In_Glyf_Bytecode ); + return; + } + /* some font programs are broken enough to redefine functions! */ /* We will then parse the current table. */ @@ -3990,6 +4033,13 @@ TT_DefRecord* limit; + /* we enable IDEF only in `prep' or `fpgm' */ + if ( exc->curRange == tt_coderange_glyph ) + { + exc->error = FT_THROW( DEF_In_Glyf_Bytecode ); + return; + } + /* First of all, look for the same function in our table */ def = exc->IDefs; @@ -4197,8 +4247,8 @@ p1 = exc->zp1.cur + aIdx2; p2 = exc->zp2.cur + aIdx1; - A = p1->x - p2->x; - B = p1->y - p2->y; + A = SUB_LONG( p1->x, p2->x ); + B = SUB_LONG( p1->y, p2->y ); /* If p1 == p2, SPvTL and SFvTL behave the same as */ /* SPvTCA[X] and SFvTCA[X], respectively. */ @@ -4213,9 +4263,9 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ - B = A; - A = -C; + C = B; /* counter clockwise rotation */ + B = A; + A = NEG_LONG( C ); } Normalize( A, B, Vec ); @@ -4756,7 +4806,7 @@ K = FAST_PROJECT( &exc->zp2.cur[L] ); - exc->func_move( exc, &exc->zp2, L, args[1] - K ); + exc->func_move( exc, &exc->zp2, L, SUB_LONG( args[1], K ) ); /* UNDOCUMENTED! The MS rasterizer does that with */ /* twilight points (confirmed by Greg Hitchcock) */ @@ -4880,12 +4930,12 @@ } { - FT_Vector* v1 = exc->zp1.org + p2; - FT_Vector* v2 = exc->zp2.org + p1; + FT_Vector* v1 = exc->zp1.org + p2; + FT_Vector* v2 = exc->zp2.org + p1; - A = v1->x - v2->x; - B = v1->y - v2->y; + A = SUB_LONG( v1->x, v2->x ); + B = SUB_LONG( v1->y, v2->y ); /* If v1 == v2, SDPvTL behaves the same as */ /* SVTCA[X], respectively. */ @@ -4901,9 +4951,9 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ - B = A; - A = -C; + C = B; /* counter clockwise rotation */ + B = A; + A = NEG_LONG( C ); } Normalize( A, B, &exc->GS.dualVector ); @@ -4913,8 +4963,8 @@ FT_Vector* v2 = exc->zp2.cur + p1; - A = v1->x - v2->x; - B = v1->y - v2->y; + A = SUB_LONG( v1->x, v2->x ); + B = SUB_LONG( v1->y, v2->y ); if ( A == 0 && B == 0 ) { @@ -4925,9 +4975,9 @@ if ( ( opcode & 1 ) != 0 ) { - C = B; /* counter clockwise rotation */ - B = A; - A = -C; + C = B; /* counter clockwise rotation */ + B = A; + A = NEG_LONG( C ); } Normalize( A, B, &exc->GS.projVector ); @@ -5112,11 +5162,11 @@ #endif #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* Native ClearType fonts sign a waiver that turns off all backwards */ + /* Native ClearType fonts sign a waiver that turns off all backward */ /* compatibility hacks and lets them program points to the grid like */ /* it's 1996. They might sign a waiver for just one glyph, though. */ if ( SUBPIXEL_HINTING_MINIMAL ) - exc->backwards_compatibility = !FT_BOOL( L == 4 ); + exc->backward_compatibility = !FT_BOOL( L == 4 ); #endif } } @@ -5204,11 +5254,11 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* See `ttinterp.h' for details on backwards compatibility mode. */ - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && - exc->iupx_called && - exc->iupy_called ) + /* See `ttinterp.h' for details on backward compatibility mode. */ + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility && + exc->iupx_called && + exc->iupy_called ) goto Fail; #endif @@ -5259,11 +5309,11 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* See `ttinterp.h' for details on backwards compatibility mode. */ - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && - exc->iupx_called && - exc->iupy_called ) + /* See `ttinterp.h' for details on backward compatibility mode. */ + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility && + exc->iupx_called && + exc->iupy_called ) return; #endif @@ -5297,11 +5347,11 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* See `ttinterp.h' for details on backwards compatibility mode. */ - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && - exc->iupx_called && - exc->iupy_called ) + /* See `ttinterp.h' for details on backward compatibility mode. */ + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility && + exc->iupx_called && + exc->iupy_called ) return; #endif @@ -5364,7 +5414,7 @@ } - /* See `ttinterp.h' for details on backwards compatibility mode. */ + /* See `ttinterp.h' for details on backward compatibility mode. */ static void Move_Zp2_Point( TT_ExecContext exc, FT_UShort point, @@ -5375,10 +5425,10 @@ if ( exc->GS.freeVector.x != 0 ) { #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( !( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility ) ) + if ( !( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility ) ) #endif - exc->zp2.cur[point].x += dx; + exc->zp2.cur[point].x = ADD_LONG( exc->zp2.cur[point].x, dx ); if ( touch ) exc->zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; @@ -5387,12 +5437,12 @@ if ( exc->GS.freeVector.y != 0 ) { #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( !( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility && - exc->iupx_called && - exc->iupy_called ) ) + if ( !( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility && + exc->iupx_called && + exc->iupy_called ) ) #endif - exc->zp2.cur[point].y += dy; + exc->zp2.cur[point].y = ADD_LONG( exc->zp2.cur[point].y, dy ); if ( touch ) exc->zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; @@ -5643,7 +5693,11 @@ ( B1 & 63 ) != 0 && ( B2 & 63 ) != 0 && B1 != B2 ) - Move_Zp2_Point( exc, point, -dx, -dy, TRUE ); + Move_Zp2_Point( exc, + point, + NEG_LONG( dx ), + NEG_LONG( dy ), + TRUE ); } } else if ( exc->face->sph_compatibility_mode ) @@ -5675,7 +5729,7 @@ if ( ( B1 & 63 ) == 0 && ( B2 & 63 ) != 0 && B1 != B2 ) - Move_Zp2_Point( exc, point, 0, -dy, TRUE ); + Move_Zp2_Point( exc, point, 0, NEG_LONG( dy ), TRUE ); } } else if ( exc->sph_in_func_flags & SPH_FDEF_TYPEMAN_DIAGENDCTRL ) @@ -5687,14 +5741,14 @@ else #endif #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility ) + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility ) { /* Special case: allow SHPIX to move points in the twilight zone. */ /* Otherwise, treat SHPIX the same as DELTAP. Unbreaks various */ /* fonts such as older versions of Rokkitt and DTL Argo T Light */ - /* that would glitch severly after calling ALIGNRP after a blocked */ - /* SHPIX. */ + /* that would glitch severely after calling ALIGNRP after a */ + /* blocked SHPIX. */ if ( in_twilight || ( !( exc->iupx_called && exc->iupy_called ) && ( ( exc->is_composite && exc->GS.freeVector.y != 0 ) || @@ -5731,6 +5785,7 @@ FT_F26Dot6 distance; #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY FT_F26Dot6 control_value_cutin = 0; + FT_F26Dot6 delta; if ( SUBPIXEL_HINTING_INFINALITY ) @@ -5766,15 +5821,22 @@ distance = PROJECT( exc->zp1.cur + point, exc->zp0.cur + exc->GS.rp0 ); #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY + delta = SUB_LONG( distance, args[1] ); + if ( delta < 0 ) + delta = NEG_LONG( delta ); + /* subpixel hinting - make MSIRP respect CVT cut-in; */ - if ( SUBPIXEL_HINTING_INFINALITY && - exc->ignore_x_mode && - exc->GS.freeVector.x != 0 && - FT_ABS( distance - args[1] ) >= control_value_cutin ) + if ( SUBPIXEL_HINTING_INFINALITY && + exc->ignore_x_mode && + exc->GS.freeVector.x != 0 && + delta >= control_value_cutin ) distance = args[1]; #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ - exc->func_move( exc, &exc->zp1, point, args[1] - distance ); + exc->func_move( exc, + &exc->zp1, + point, + SUB_LONG( args[1], distance ) ); exc->GS.rp1 = exc->GS.rp0; exc->GS.rp2 = point; @@ -5815,16 +5877,18 @@ if ( SUBPIXEL_HINTING_INFINALITY && exc->ignore_x_mode && exc->GS.freeVector.x != 0 ) - distance = Round_None( - exc, - cur_dist, - exc->tt_metrics.compensations[0] ) - cur_dist; + distance = SUB_LONG( + Round_None( exc, + cur_dist, + exc->tt_metrics.compensations[0] ), + cur_dist ); else #endif - distance = exc->func_round( - exc, - cur_dist, - exc->tt_metrics.compensations[0] ) - cur_dist; + distance = SUB_LONG( + exc->func_round( exc, + cur_dist, + exc->tt_metrics.compensations[0] ), + cur_dist ); } else distance = 0; @@ -5924,7 +5988,14 @@ if ( ( exc->opcode & 1 ) != 0 ) /* rounding and control cut-in flag */ { - if ( FT_ABS( distance - org_dist ) > control_value_cutin ) + FT_F26Dot6 delta; + + + delta = SUB_LONG( distance, org_dist ); + if ( delta < 0 ) + delta = NEG_LONG( delta ); + + if ( delta > control_value_cutin ) distance = org_dist; #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY @@ -5941,7 +6012,7 @@ exc->tt_metrics.compensations[0] ); } - exc->func_move( exc, &exc->zp0, point, distance - org_dist ); + exc->func_move( exc, &exc->zp0, point, SUB_LONG( distance, org_dist ) ); Fail: exc->GS.rp0 = point; @@ -6013,8 +6084,10 @@ FT_Vector vec; - vec.x = FT_MulFix( vec1->x - vec2->x, exc->metrics.x_scale ); - vec.y = FT_MulFix( vec1->y - vec2->y, exc->metrics.y_scale ); + vec.x = FT_MulFix( SUB_LONG( vec1->x, vec2->x ), + exc->metrics.x_scale ); + vec.y = FT_MulFix( SUB_LONG( vec1->y, vec2->y ), + exc->metrics.y_scale ); org_dist = FAST_DUALPROJ( &vec ); } @@ -6022,8 +6095,12 @@ /* single width cut-in test */ - if ( FT_ABS( org_dist - exc->GS.single_width_value ) < - exc->GS.single_width_cutin ) + /* |org_dist - single_width_value| < single_width_cutin */ + if ( exc->GS.single_width_cutin > 0 && + org_dist < exc->GS.single_width_value + + exc->GS.single_width_cutin && + org_dist > exc->GS.single_width_value - + exc->GS.single_width_cutin ) { if ( org_dist >= 0 ) org_dist = exc->GS.single_width_value; @@ -6067,8 +6144,8 @@ } else { - if ( distance > -minimum_distance ) - distance = -minimum_distance; + if ( distance > NEG_LONG( minimum_distance ) ) + distance = NEG_LONG( minimum_distance ); } } @@ -6076,7 +6153,7 @@ org_dist = PROJECT( exc->zp1.cur + point, exc->zp0.cur + exc->GS.rp0 ); - exc->func_move( exc, &exc->zp1, point, distance - org_dist ); + exc->func_move( exc, &exc->zp1, point, SUB_LONG( distance, org_dist ) ); Fail: exc->GS.rp1 = exc->GS.rp0; @@ -6116,7 +6193,7 @@ minimum_distance = exc->GS.minimum_distance; control_value_cutin = exc->GS.control_value_cutin; point = (FT_UShort)args[0]; - cvtEntry = (FT_ULong)( args[1] + 1 ); + cvtEntry = (FT_ULong)( ADD_LONG( args[1], 1 ) ); #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY if ( SUBPIXEL_HINTING_INFINALITY && @@ -6199,6 +6276,9 @@ if ( exc->GS.gep0 == exc->GS.gep1 ) { + FT_F26Dot6 delta; + + /* XXX: According to Greg Hitchcock, the following wording is */ /* the right one: */ /* */ @@ -6211,7 +6291,11 @@ /* `ttinst2.doc', version 1.66, is thus incorrect since */ /* it implies `>=' instead of `>'. */ - if ( FT_ABS( cvt_dist - org_dist ) > control_value_cutin ) + delta = SUB_LONG( cvt_dist, org_dist ); + if ( delta < 0 ) + delta = NEG_LONG( delta ); + + if ( delta > control_value_cutin ) cvt_dist = org_dist; } @@ -6229,7 +6313,14 @@ exc->ignore_x_mode && exc->GS.gep0 == exc->GS.gep1 ) { - if ( FT_ABS( cvt_dist - org_dist ) > control_value_cutin ) + FT_F26Dot6 delta; + + + delta = SUB_LONG( cvt_dist, org_dist ); + if ( delta < 0 ) + delta = NEG_LONG( delta ); + + if ( delta > control_value_cutin ) cvt_dist = org_dist; } #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ @@ -6251,8 +6342,8 @@ } else { - if ( distance > -minimum_distance ) - distance = -minimum_distance; + if ( distance > NEG_LONG( minimum_distance ) ) + distance = NEG_LONG( minimum_distance ); } } @@ -6276,7 +6367,10 @@ } #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ - exc->func_move( exc, &exc->zp1, point, distance - cur_dist ); + exc->func_move( exc, + &exc->zp1, + point, + SUB_LONG( distance, cur_dist ) ); #ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY if ( SUBPIXEL_HINTING_INFINALITY ) @@ -6300,7 +6394,10 @@ } if ( reverse_move ) - exc->func_move( exc, &exc->zp1, point, -( distance - cur_dist ) ); + exc->func_move( exc, + &exc->zp1, + point, + SUB_LONG( cur_dist, distance ) ); } #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ @@ -6366,7 +6463,7 @@ distance = PROJECT( exc->zp1.cur + point, exc->zp0.cur + exc->GS.rp0 ); - exc->func_move( exc, &exc->zp1, point, -distance ); + exc->func_move( exc, &exc->zp1, point, NEG_LONG( distance ) ); } exc->GS.loop--; @@ -6423,19 +6520,19 @@ /* Cramer's rule */ - dbx = exc->zp0.cur[b1].x - exc->zp0.cur[b0].x; - dby = exc->zp0.cur[b1].y - exc->zp0.cur[b0].y; + dbx = SUB_LONG( exc->zp0.cur[b1].x, exc->zp0.cur[b0].x ); + dby = SUB_LONG( exc->zp0.cur[b1].y, exc->zp0.cur[b0].y ); - dax = exc->zp1.cur[a1].x - exc->zp1.cur[a0].x; - day = exc->zp1.cur[a1].y - exc->zp1.cur[a0].y; + dax = SUB_LONG( exc->zp1.cur[a1].x, exc->zp1.cur[a0].x ); + day = SUB_LONG( exc->zp1.cur[a1].y, exc->zp1.cur[a0].y ); - dx = exc->zp0.cur[b0].x - exc->zp1.cur[a0].x; - dy = exc->zp0.cur[b0].y - exc->zp1.cur[a0].y; + dx = SUB_LONG( exc->zp0.cur[b0].x, exc->zp1.cur[a0].x ); + dy = SUB_LONG( exc->zp0.cur[b0].y, exc->zp1.cur[a0].y ); - discriminant = FT_MulDiv( dax, -dby, 0x40 ) + - FT_MulDiv( day, dbx, 0x40 ); - dotproduct = FT_MulDiv( dax, dbx, 0x40 ) + - FT_MulDiv( day, dby, 0x40 ); + discriminant = ADD_LONG( FT_MulDiv( dax, NEG_LONG( dby ), 0x40 ), + FT_MulDiv( day, dbx, 0x40 ) ); + dotproduct = ADD_LONG( FT_MulDiv( dax, dbx, 0x40 ), + FT_MulDiv( day, dby, 0x40 ) ); /* The discriminant above is actually a cross product of vectors */ /* da and db. Together with the dot product, they can be used as */ @@ -6445,30 +6542,29 @@ /* discriminant = |da||db|sin(angle) . */ /* We use these equations to reject grazing intersections by */ /* thresholding abs(tan(angle)) at 1/19, corresponding to 3 degrees. */ - if ( 19 * FT_ABS( discriminant ) > FT_ABS( dotproduct ) ) + if ( MUL_LONG( 19, FT_ABS( discriminant ) ) > FT_ABS( dotproduct ) ) { - val = FT_MulDiv( dx, -dby, 0x40 ) + FT_MulDiv( dy, dbx, 0x40 ); + val = ADD_LONG( FT_MulDiv( dx, NEG_LONG( dby ), 0x40 ), + FT_MulDiv( dy, dbx, 0x40 ) ); R.x = FT_MulDiv( val, dax, discriminant ); R.y = FT_MulDiv( val, day, discriminant ); - /* XXX: Block in backwards_compatibility and/or post-IUP? */ - exc->zp2.cur[point].x = exc->zp1.cur[a0].x + R.x; - exc->zp2.cur[point].y = exc->zp1.cur[a0].y + R.y; + /* XXX: Block in backward_compatibility and/or post-IUP? */ + exc->zp2.cur[point].x = ADD_LONG( exc->zp1.cur[a0].x, R.x ); + exc->zp2.cur[point].y = ADD_LONG( exc->zp1.cur[a0].y, R.y ); } else { /* else, take the middle of the middles of A and B */ - /* XXX: Block in backwards_compatibility and/or post-IUP? */ - exc->zp2.cur[point].x = ( exc->zp1.cur[a0].x + - exc->zp1.cur[a1].x + - exc->zp0.cur[b0].x + - exc->zp0.cur[b1].x ) / 4; - exc->zp2.cur[point].y = ( exc->zp1.cur[a0].y + - exc->zp1.cur[a1].y + - exc->zp0.cur[b0].y + - exc->zp0.cur[b1].y ) / 4; + /* XXX: Block in backward_compatibility and/or post-IUP? */ + exc->zp2.cur[point].x = + ADD_LONG( ADD_LONG( exc->zp1.cur[a0].x, exc->zp1.cur[a1].x ), + ADD_LONG( exc->zp0.cur[b0].x, exc->zp0.cur[b1].x ) ) / 4; + exc->zp2.cur[point].y = + ADD_LONG( ADD_LONG( exc->zp1.cur[a0].y, exc->zp1.cur[a1].y ), + ADD_LONG( exc->zp0.cur[b0].y, exc->zp0.cur[b1].y ) ) / 4; } exc->zp2.tags[point] |= FT_CURVE_TAG_TOUCH_BOTH; @@ -6503,7 +6599,7 @@ distance = PROJECT( exc->zp0.cur + p2, exc->zp1.cur + p1 ) / 2; exc->func_move( exc, &exc->zp1, p1, distance ); - exc->func_move( exc, &exc->zp0, p2, -distance ); + exc->func_move( exc, &exc->zp0, p2, NEG_LONG( distance ) ); } @@ -6576,9 +6672,11 @@ FT_Vector vec; - vec.x = FT_MulFix( exc->zp1.orus[exc->GS.rp2].x - orus_base->x, + vec.x = FT_MulFix( SUB_LONG( exc->zp1.orus[exc->GS.rp2].x, + orus_base->x ), exc->metrics.x_scale ); - vec.y = FT_MulFix( exc->zp1.orus[exc->GS.rp2].y - orus_base->y, + vec.y = FT_MulFix( SUB_LONG( exc->zp1.orus[exc->GS.rp2].y, + orus_base->y ), exc->metrics.y_scale ); old_range = FAST_DUALPROJ( &vec ); @@ -6613,9 +6711,11 @@ FT_Vector vec; - vec.x = FT_MulFix( exc->zp2.orus[point].x - orus_base->x, + vec.x = FT_MulFix( SUB_LONG( exc->zp2.orus[point].x, + orus_base->x ), exc->metrics.x_scale ); - vec.y = FT_MulFix( exc->zp2.orus[point].y - orus_base->y, + vec.y = FT_MulFix( SUB_LONG( exc->zp2.orus[point].y, + orus_base->y ), exc->metrics.y_scale ); org_dist = FAST_DUALPROJ( &vec ); @@ -6654,7 +6754,7 @@ exc->func_move( exc, &exc->zp2, (FT_UShort)point, - new_dist - cur_dist ); + SUB_LONG( new_dist, cur_dist ) ); } Fail: @@ -6719,14 +6819,14 @@ FT_F26Dot6 dx; - dx = worker->curs[p].x - worker->orgs[p].x; + dx = SUB_LONG( worker->curs[p].x, worker->orgs[p].x ); if ( dx != 0 ) { for ( i = p1; i < p; i++ ) - worker->curs[i].x += dx; + worker->curs[i].x = ADD_LONG( worker->curs[i].x, dx ); for ( i = p + 1; i <= p2; i++ ) - worker->curs[i].x += dx; + worker->curs[i].x = ADD_LONG( worker->curs[i].x, dx ); } } @@ -6771,8 +6871,8 @@ org2 = worker->orgs[ref2].x; cur1 = worker->curs[ref1].x; cur2 = worker->curs[ref2].x; - delta1 = cur1 - org1; - delta2 = cur2 - org2; + delta1 = SUB_LONG( cur1, org1 ); + delta2 = SUB_LONG( cur2, org2 ); if ( cur1 == cur2 || orus1 == orus2 ) { @@ -6784,10 +6884,10 @@ if ( x <= org1 ) - x += delta1; + x = ADD_LONG( x, delta1 ); else if ( x >= org2 ) - x += delta2; + x = ADD_LONG( x, delta2 ); else x = cur1; @@ -6808,20 +6908,23 @@ if ( x <= org1 ) - x += delta1; + x = ADD_LONG( x, delta1 ); else if ( x >= org2 ) - x += delta2; + x = ADD_LONG( x, delta2 ); else { if ( !scale_valid ) { scale_valid = 1; - scale = FT_DivFix( cur2 - cur1, orus2 - orus1 ); + scale = FT_DivFix( SUB_LONG( cur2, cur1 ), + SUB_LONG( orus2, orus1 ) ); } - x = cur1 + FT_MulFix( worker->orus[i].x - orus1, scale ); + x = ADD_LONG( cur1, + FT_MulFix( SUB_LONG( worker->orus[i].x, orus1 ), + scale ) ); } worker->curs[i].x = x; } @@ -6852,11 +6955,11 @@ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* See `ttinterp.h' for details on backwards compatibility mode. */ + /* See `ttinterp.h' for details on backward compatibility mode. */ /* Allow IUP until it has been called on both axes. Immediately */ /* return on subsequent ones. */ - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility ) + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility ) { if ( exc->iupx_called && exc->iupy_called ) return; @@ -7089,7 +7192,7 @@ SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES_DELTAP ) && ( B1 & 63 ) != 0 && ( B2 & 63 ) != 0 ) ) ) - exc->func_move( exc, &exc->zp0, A, -B ); + exc->func_move( exc, &exc->zp0, A, NEG_LONG( B ) ); } } else @@ -7098,10 +7201,10 @@ { #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* See `ttinterp.h' for details on backwards compatibility */ - /* mode. */ - if ( SUBPIXEL_HINTING_MINIMAL && - exc->backwards_compatibility ) + /* See `ttinterp.h' for details on backward compatibility */ + /* mode. */ + if ( SUBPIXEL_HINTING_MINIMAL && + exc->backward_compatibility ) { if ( !( exc->iupx_called && exc->iupy_called ) && ( ( exc->is_composite && exc->GS.freeVector.y != 0 ) || @@ -7245,7 +7348,7 @@ { if ( exc->ignore_x_mode ) { - /* if in ClearType backwards compatibility mode, */ + /* if in ClearType backward compatibility mode, */ /* we sometimes change the TrueType version dynamically */ K = exc->rasterizer_version; FT_TRACE6(( "Setting rasterizer version %d\n", @@ -7296,7 +7399,11 @@ K |= 1 << 12; #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - if ( SUBPIXEL_HINTING_MINIMAL ) + /* Toggle the following flags only outside of monochrome mode. */ + /* Otherwise, instructions may behave weirdly and rendering results */ + /* may differ between v35 and v40 mode, e.g., in `Times New Roman */ + /* Bold Italic'. */ + if ( SUBPIXEL_HINTING_MINIMAL && exc->subpixel_hinting_lean ) { /********************************/ /* HINTING FOR SUBPIXEL */ @@ -7331,7 +7438,7 @@ /* */ /* The only smoothing method FreeType supports unless someone sets */ /* FT_LOAD_TARGET_MONO. */ - if ( ( args[0] & 2048 ) != 0 ) + if ( ( args[0] & 2048 ) != 0 && exc->subpixel_hinting_lean ) K |= 1 << 18; /********************************/ @@ -7456,8 +7563,16 @@ return; } - for ( i = 0; i < num_axes; i++ ) - args[i] = coords[i] >> 2; /* convert 16.16 to 2.14 format */ + if ( coords ) + { + for ( i = 0; i < num_axes; i++ ) + args[i] = coords[i] >> 2; /* convert 16.16 to 2.14 format */ + } + else + { + for ( i = 0; i < num_axes; i++ ) + args[i] = 0; + } } @@ -7575,15 +7690,25 @@ #endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL - /* Toggle backwards compatibility according to what font says, except */ - /* when it's a `tricky' font that heavily relies on the interpreter to */ - /* render glyphs correctly, e.g. DFKai-SB. Backwards compatibility */ - /* hacks may break it. */ + /* + * Toggle backward compatibility according to what font wants, except + * when + * + * 1) we have a `tricky' font that heavily relies on the interpreter to + * render glyphs correctly, for example DFKai-SB, or + * 2) FT_RENDER_MODE_MONO (i.e, monochome rendering) is requested. + * + * In those cases, backward compatibility needs to be turned off to get + * correct rendering. The rendering is then completely up to the + * font's programming. + * + */ if ( SUBPIXEL_HINTING_MINIMAL && + exc->subpixel_hinting_lean && !FT_IS_TRICKY( &exc->face->root ) ) - exc->backwards_compatibility = !( exc->GS.instruct_control & 4 ); + exc->backward_compatibility = !( exc->GS.instruct_control & 4 ); else - exc->backwards_compatibility = FALSE; + exc->backward_compatibility = FALSE; exc->iupx_called = FALSE; exc->iupy_called = FALSE; @@ -7605,21 +7730,34 @@ exc->twilight.n_points = (FT_UShort)num_twilight_points; } - /* Set up loop detectors. We restrict the number of LOOPCALL loops */ - /* and the number of JMPR, JROT, and JROF calls with a negative */ - /* argument to values that depend on the size of the CVT table and */ - /* the number of points in the current glyph (if applicable). */ - /* */ - /* The idea is that in real-world bytecode you either iterate over */ - /* all CVT entries, or over all points (or contours) of a glyph, and */ - /* such iterations don't happen very often. */ + /* Set up loop detectors. We restrict the number of LOOPCALL loops */ + /* and the number of JMPR, JROT, and JROF calls with a negative */ + /* argument to values that depend on various parameters like the */ + /* size of the CVT table or the number of points in the current */ + /* glyph (if applicable). */ + /* */ + /* The idea is that in real-world bytecode you either iterate over */ + /* all CVT entries (in the `prep' table), or over all points (or */ + /* contours, in the `glyf' table) of a glyph, and such iterations */ + /* don't happen very often. */ exc->loopcall_counter = 0; exc->neg_jump_counter = 0; /* The maximum values are heuristic. */ - exc->loopcall_counter_max = FT_MAX( 100, - 10 * ( exc->pts.n_points + - exc->cvtSize ) ); + if ( exc->pts.n_points ) + exc->loopcall_counter_max = FT_MAX( 50, + 10 * exc->pts.n_points ) + + FT_MAX( 50, + exc->cvtSize / 10 ); + else + exc->loopcall_counter_max = 300 + 8 * exc->cvtSize; + + /* as a protection against an unreasonable number of CVT entries */ + /* we assume at most 100 control values per glyph for the counter */ + if ( exc->loopcall_counter_max > + 100 * (FT_ULong)exc->face->root.num_glyphs ) + exc->loopcall_counter_max = 100 * (FT_ULong)exc->face->root.num_glyphs; + FT_TRACE5(( "TT_RunIns: Limiting total number of loops in LOOPCALL" " to %d\n", exc->loopcall_counter_max )); @@ -8387,30 +8525,27 @@ } while ( !exc->instruction_trap ); LNo_Error_: - FT_TRACE4(( " %d instructions executed\n", ins_counter )); + FT_TRACE4(( " %d instruction%s executed\n", + ins_counter, + ins_counter == 1 ? "" : "s" )); return FT_Err_Ok; LErrorCodeOverflow_: exc->error = FT_THROW( Code_Overflow ); LErrorLabel_: - /* If any errors have occurred, function tables may be broken. */ - /* Force a re-execution of `prep' and `fpgm' tables if no */ - /* bytecode debugger is run. */ - if ( exc->error && - !exc->instruction_trap && - exc->curRange == tt_coderange_glyph ) - { + if ( exc->error && !exc->instruction_trap ) FT_TRACE1(( " The interpreter returned error 0x%x\n", exc->error )); - exc->size->bytecode_ready = -1; - exc->size->cvt_ready = -1; - } return exc->error; } +#else /* !TT_USE_BYTECODE_INTERPRETER */ + + /* ANSI C doesn't like empty source files */ + typedef int _tt_interp_dummy; -#endif /* TT_USE_BYTECODE_INTERPRETER */ +#endif /* !TT_USE_BYTECODE_INTERPRETER */ /* END */ diff --git a/modules/freetype2/src/truetype/ttinterp.h b/modules/freetype2/src/truetype/ttinterp.h index 33a9b122f..2966439ea 100644 --- a/modules/freetype2/src/truetype/ttinterp.h +++ b/modules/freetype2/src/truetype/ttinterp.h @@ -4,7 +4,7 @@ /* */ /* TrueType bytecode interpreter (specification). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -253,23 +253,38 @@ FT_BEGIN_HEADER #ifdef TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL /* - * Modern TrueType fonts are usually rendered through Microsoft's - * collection of rendering techniques called ClearType (e.g., subpixel - * rendering and subpixel hinting). When ClearType was introduced, most - * fonts were not ready. Microsoft decided to implement a backwards - * compatibility mode that employed several simple to complicated - * assumptions and tricks that modified the interpretation of the - * bytecode contained in these fonts to make them look ClearType-y - * somehow. Most (web)fonts that were released since then have come to - * rely on these hacks to render correctly, even some of Microsoft's - * flagship ClearType fonts (Calibri, Cambria, Segoe UI). + * FreeType supports ClearType-like hinting of TrueType fonts through + * the version 40 interpreter. This is achieved through several hacks + * in the base (v35) interpreter, as detailed below. * - * The minimal subpixel hinting code (interpreter version 40) employs a - * small list of font-agnostic hacks to bludgeon non-native-ClearType - * fonts (except tricky ones[1]) into submission. It will not try to - * toggle hacks for specific fonts for performance and complexity - * reasons. The focus is on modern (web)fonts rather than legacy fonts - * that were made for black-and-white rendering. + * ClearType is an umbrella term for several rendering techniques + * employed by Microsoft's various GUI and rendering toolkit + * implementations, most importantly: subpixel rendering for using the + * RGB subpixels of LCDs to approximately triple the perceived + * resolution on the x-axis and subpixel hinting for positioning stems + * on subpixel borders. TrueType programming is explicit, i.e., fonts + * must be programmed to take advantage of ClearType's possibilities. + * + * When ClearType was introduced, it seemed unlikely that all fonts + * would be reprogrammed, so Microsoft decided to implement a backward + * compatibility mode. It employs several simple to complicated + * assumptions and tricks, many of them font-dependent, that modify the + * interpretation of the bytecode contained in these fonts to retrofit + * them into a ClearType-y look. The quality of the results varies. + * Most (web)fonts that were released since then have come to rely on + * these hacks to render correctly, even some of Microsoft's flagship + * fonts (e.g., Calibri, Cambria, Segoe UI). + * + * FreeType's minimal subpixel hinting code (interpreter version 40) + * employs a small list of font-agnostic hacks loosely based on the + * public information available on Microsoft's compatibility mode[2]. + * The focus is on modern (web)fonts rather than legacy fonts that were + * made for monochrome rendering. It will not match ClearType rendering + * exactly. Unlike the `Infinality' code (interpreter version 38) that + * came before, it will not try to toggle hacks for specific fonts for + * performance and complexity reasons. It will fall back to version 35 + * behavior for tricky fonts[1] or when monochrome rendering is + * requested. * * Major hacks * @@ -316,12 +331,12 @@ FT_BEGIN_HEADER * very specific patterns (`superhinting') for pre-ClearType-displays, * the worse the results. * - * Microsoft defines a way to turn off backwards compatibility and + * Microsoft defines a way to turn off backward compatibility and * interpret instructions as before (called `native ClearType')[2][3]. * The font designer then regains full control and is responsible for * making the font work correctly with ClearType without any * hand-holding by the interpreter or rasterizer[4]. The v40 - * interpreter assumes backwards compatibility by default, which can be + * interpreter assumes backward compatibility by default, which can be * turned off the same way by executing the following in the control * program (cf. `Ins_INSTCTRL'). * @@ -331,7 +346,7 @@ FT_BEGIN_HEADER * [1] Tricky fonts as FreeType defines them rely on the bytecode * interpreter to display correctly. Hacks can interfere with them, * so they get treated like native ClearType fonts (v40 with - * backwards compatibility turned off). Cf. `TT_RunIns'. + * backward compatibility turned off). Cf. `TT_RunIns'. * * [2] Proposed by Microsoft's Greg Hitchcock in * https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx @@ -347,7 +362,8 @@ FT_BEGIN_HEADER * */ - /* Using v40 implies subpixel hinting. Used to detect interpreter */ + /* Using v40 implies subpixel hinting, unless FT_RENDER_MODE_MONO has been + * requested. Used to detect interpreter */ /* version switches. `_lean' to differentiate from the Infinality */ /* `subpixel_hinting', which is managed differently. */ FT_Bool subpixel_hinting_lean; @@ -357,10 +373,10 @@ FT_BEGIN_HEADER /* is managed differently. */ FT_Bool vertical_lcd_lean; - /* Default to backwards compatibility mode in v40 interpreter. If */ + /* Default to backward compatibility mode in v40 interpreter. If */ /* this is false, it implies the interpreter is in v35 or in native */ /* ClearType mode. */ - FT_Bool backwards_compatibility; + FT_Bool backward_compatibility; /* Useful for detecting and denying post-IUP trickery that is usually */ /* used to fix pixel patterns (`superhinting'). */ diff --git a/modules/freetype2/src/truetype/ttobjs.c b/modules/freetype2/src/truetype/ttobjs.c index 7e37113f9..6685dc819 100644 --- a/modules/freetype2/src/truetype/ttobjs.c +++ b/modules/freetype2/src/truetype/ttobjs.c @@ -4,7 +4,7 @@ /* */ /* Objects manager (body). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -21,7 +21,7 @@ #include FT_INTERNAL_STREAM_H #include FT_TRUETYPE_TAGS_H #include FT_INTERNAL_SFNT_H -#include FT_TRUETYPE_DRIVER_H +#include FT_DRIVER_H #include "ttgload.h" #include "ttpload.h" @@ -147,20 +147,51 @@ { #define TRICK_NAMES_MAX_CHARACTERS 19 -#define TRICK_NAMES_COUNT 9 +#define TRICK_NAMES_COUNT 26 static const char trick_names[TRICK_NAMES_COUNT] [TRICK_NAMES_MAX_CHARACTERS + 1] = { + /* + PostScript names are given in brackets if they differ from the + family name. The version numbers, together with the copyright or + release year data, are taken from fonts available to the + developers. + + Note that later versions of the fonts might be no longer tricky; + for example, `MingLiU' version 7.00 (file `mingliu.ttc' from + Windows 7) is an ordinary TTC with non-tricky subfonts. + */ + + "cpop", /* dftt-p7.ttf; version 1.00, 1992 [DLJGyShoMedium] */ + "DFGirl-W6-WIN-BF", /* dftt-h6.ttf; version 1.00, 1993 */ + "DFGothic-EB", /* DynaLab Inc. 1992-1995 */ + "DFGyoSho-Lt", /* DynaLab Inc. 1992-1995 */ + "DFHei-Md-HK-BF", /* maybe DynaLab Inc. */ + "DFHSGothic-W5", /* DynaLab Inc. 1992-1995 */ + "DFHSMincho-W3", /* DynaLab Inc. 1992-1995 */ + "DFHSMincho-W7", /* DynaLab Inc. 1992-1995 */ "DFKaiSho-SB", /* dfkaisb.ttf */ "DFKaiShu", - "DFKai-SB", /* kaiu.ttf */ + "DFKaiShu-Md-HK-BF", /* maybe DynaLab Inc. */ + "DFKai-SB", /* kaiu.ttf; version 3.00, 1998 [DFKaiShu-SB-Estd-BF] */ + "DFMing-Bd-HK-BF", /* maybe DynaLab Inc. */ + "DLC", /* dftt-m7.ttf; version 1.00, 1993 [DLCMingBold] */ + /* dftt-f5.ttf; version 1.00, 1993 [DLCFongSung] */ + "DLCHayMedium", /* dftt-b5.ttf; version 1.00, 1993 */ + "DLCHayBold", /* dftt-b7.ttf; version 1.00, 1993 */ + "DLCKaiMedium", /* dftt-k5.ttf; version 1.00, 1992 */ + "DLCLiShu", /* dftt-l5.ttf; version 1.00, 1992 */ + "DLCRoundBold", /* dftt-r7.ttf; version 1.00, 1993 */ "HuaTianKaiTi?", /* htkt2.ttf */ "HuaTianSongTi?", /* htst3.ttf */ - "Ming(for ISO10646)", /* hkscsiic.ttf & iicore.ttf */ - "MingLiU", /* mingliu.ttf & mingliu.ttc */ - "PMingLiU", /* mingliu.ttc */ - "MingLi43", /* mingli.ttf */ + "Ming(for ISO10646)", /* hkscsiic.ttf; version 0.12, 2007 [Ming] */ + /* iicore.ttf; version 0.07, 2007 [Ming] */ + "MingLiU", /* mingliu.ttf */ + /* mingliu.ttc; version 3.21, 2001 */ + "MingMedium", /* dftt-m5.ttf; version 1.00, 1993 [DLCMingMedium] */ + "PMingLiU", /* mingliu.ttc; version 3.21, 2001 */ + "MingLi43", /* mingli.ttf; version 1.00, 1992 */ }; int nn; @@ -242,7 +273,7 @@ tt_check_trickyness_sfnt_ids( TT_Face face ) { #define TRICK_SFNT_IDS_PER_FACE 3 -#define TRICK_SFNT_IDS_NUM_FACES 18 +#define TRICK_SFNT_IDS_NUM_FACES 29 static const tt_sfnt_id_rec sfnt_id[TRICK_SFNT_IDS_NUM_FACES] [TRICK_SFNT_IDS_PER_FACE] = { @@ -261,16 +292,66 @@ { 0x28233BF1UL, 0x000087C4UL }, /* fpgm */ { 0xA344A1EBUL, 0x000001E1UL } /* prep */ }, + { /* DFGothic-EB */ + { 0x12C3EBB2UL, 0x00000350UL }, /* cvt */ + { 0xB680EE64UL, 0x000087A7UL }, /* fpgm */ + { 0xCE939563UL, 0x00000758UL } /* prep */ + }, + { /* DFGyoSho-Lt */ + { 0x11E5EAD4UL, 0x00000350UL }, /* cvt */ + { 0xCE5956E9UL, 0x0000BC85UL }, /* fpgm */ + { 0x8272F416UL, 0x00000045UL } /* prep */ + }, + { /* DFHei-Md-HK-BF */ + { 0x1257EB46UL, 0x00000350UL }, /* cvt */ + { 0xF699D160UL, 0x0000715FUL }, /* fpgm */ + { 0xD222F568UL, 0x000003BCUL } /* prep */ + }, + { /* DFHSGothic-W5 */ + { 0x1262EB4EUL, 0x00000350UL }, /* cvt */ + { 0xE86A5D64UL, 0x00007940UL }, /* fpgm */ + { 0x7850F729UL, 0x000005FFUL } /* prep */ + }, + { /* DFHSMincho-W3 */ + { 0x122DEB0AUL, 0x00000350UL }, /* cvt */ + { 0x3D16328AUL, 0x0000859BUL }, /* fpgm */ + { 0xA93FC33BUL, 0x000002CBUL } /* prep */ + }, + { /* DFHSMincho-W7 */ + { 0x125FEB26UL, 0x00000350UL }, /* cvt */ + { 0xA5ACC982UL, 0x00007EE1UL }, /* fpgm */ + { 0x90999196UL, 0x0000041FUL } /* prep */ + }, { /* DFKaiShu */ { 0x11E5EAD4UL, 0x00000350UL }, /* cvt */ { 0x5A30CA3BUL, 0x00009063UL }, /* fpgm */ { 0x13A42602UL, 0x0000007EUL } /* prep */ }, - { /* DFKaiShu2 */ + { /* DFKaiShu, variant */ { 0x11E5EAD4UL, 0x00000350UL }, /* cvt */ { 0xA6E78C01UL, 0x00008998UL }, /* fpgm */ { 0x13A42602UL, 0x0000007EUL } /* prep */ }, + { /* DFKaiShu-Md-HK-BF */ + { 0x11E5EAD4UL, 0x00000360UL }, /* cvt */ + { 0x9DB282B2UL, 0x0000C06EUL }, /* fpgm */ + { 0x53E6D7CAUL, 0x00000082UL } /* prep */ + }, + { /* DFMing-Bd-HK-BF */ + { 0x1243EB18UL, 0x00000350UL }, /* cvt */ + { 0xBA0A8C30UL, 0x000074ADUL }, /* fpgm */ + { 0xF3D83409UL, 0x0000037BUL } /* prep */ + }, + { /* DLCLiShu */ + { 0x07DCF546UL, 0x00000308UL }, /* cvt */ + { 0x40FE7C90UL, 0x00008E2AUL }, /* fpgm */ + { 0x608174B5UL, 0x0000007AUL } /* prep */ + }, + { /* DLCHayBold */ + { 0xEB891238UL, 0x00000308UL }, /* cvt */ + { 0xD2E4DCD4UL, 0x0000676FUL }, /* fpgm */ + { 0x8EA5F293UL, 0x000003B8UL } /* prep */ + }, { /* HuaTianKaiTi */ { 0xFFFBFFFCUL, 0x00000008UL }, /* cvt */ { 0x9C9E48B8UL, 0x0000BEA2UL }, /* fpgm */ @@ -340,6 +421,11 @@ { 0x00000000UL, 0x00000000UL }, /* cvt */ { 0xF055FC48UL, 0x000001C2UL }, /* fpgm */ { 0x3900DED3UL, 0x00001E18UL } /* prep */ + }, + { /* MINGLI.TTF, 1992 */ + { 0x00170003UL, 0x00000060UL }, /* cvt */ + { 0xDBB4306EUL, 0x000058AAUL }, /* fpgm */ + { 0xD643482AUL, 0x00000035UL } /* prep */ } }; @@ -536,6 +622,7 @@ goto Exit; /* check that we have a valid TrueType file */ + FT_TRACE2(( " " )); error = sfnt->init_face( stream, face, face_index, num_params, params ); /* Stream may have changed. */ @@ -547,9 +634,11 @@ /* We must also be able to accept Mac/GX fonts, as well as OT ones. */ /* The 0x00020000 tag is completely undocumented; some fonts from */ /* Arphic made for Chinese Windows 3.1 have this. */ - if ( face->format_tag != 0x00010000L && /* MS fonts */ - face->format_tag != 0x00020000L && /* CJK fonts for Win 3.1 */ - face->format_tag != TTAG_true ) /* Mac fonts */ + if ( face->format_tag != 0x00010000L && /* MS fonts */ + face->format_tag != 0x00020000L && /* CJK fonts for Win 3.1 */ + face->format_tag != TTAG_true && /* Mac fonts */ + face->format_tag != TTAG_0xA5kbd && /* `Keyboard.dfont' (legacy Mac OS X) */ + face->format_tag != TTAG_0xA5lst ) /* `LastResort.dfont' (legacy Mac OS X) */ { FT_TRACE2(( " not a TTF font\n" )); goto Bad_Format; @@ -626,44 +715,17 @@ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT { - FT_Int instance_index = face_index >> 16; + FT_UInt instance_index = (FT_UInt)face_index >> 16; if ( FT_HAS_MULTIPLE_MASTERS( ttface ) && instance_index > 0 ) { - error = TT_Get_MM_Var( face, NULL ); + error = TT_Set_Named_Instance( face, instance_index ); if ( error ) goto Exit; - if ( face->blend->mmvar->namedstyle ) - { - FT_Memory memory = ttface->memory; - - FT_Var_Named_Style* named_style; - FT_String* style_name; - - - /* in `face_index', the instance index starts with value 1 */ - named_style = face->blend->mmvar->namedstyle + instance_index - 1; - error = sfnt->get_name( face, - (FT_UShort)named_style->strid, - &style_name ); - if ( error ) - goto Exit; - - /* set style name; if already set, replace it */ - if ( face->root.style_name ) - FT_FREE( face->root.style_name ); - face->root.style_name = style_name; - - /* finally, select the named instance */ - error = TT_Set_Var_Design( face, - face->blend->mmvar->num_axis, - named_style->coords ); - if ( error ) - goto Exit; - } + tt_apply_mvar( face ); } } @@ -789,14 +851,14 @@ exec->pedantic_hinting = pedantic; { - FT_Size_Metrics* metrics = &exec->metrics; - TT_Size_Metrics* tt_metrics = &exec->tt_metrics; + FT_Size_Metrics* size_metrics = &exec->metrics; + TT_Size_Metrics* tt_metrics = &exec->tt_metrics; - metrics->x_ppem = 0; - metrics->y_ppem = 0; - metrics->x_scale = 0; - metrics->y_scale = 0; + size_metrics->x_ppem = 0; + size_metrics->y_ppem = 0; + size_metrics->x_scale = 0; + size_metrics->y_scale = 0; tt_metrics->ppem = 0; tt_metrics->scale = 0; @@ -819,6 +881,11 @@ FT_TRACE4(( "Executing `fpgm' table.\n" )); error = face->interpreter( exec ); +#ifdef FT_DEBUG_LEVEL_TRACE + if ( error ) + FT_TRACE4(( " interpretation failed with error code 0x%x\n", + error )); +#endif } else error = FT_Err_Ok; @@ -882,8 +949,12 @@ TT_Goto_CodeRange( exec, tt_coderange_cvt, 0 ); FT_TRACE4(( "Executing `prep' table.\n" )); - error = face->interpreter( exec ); +#ifdef FT_DEBUG_LEVEL_TRACE + if ( error ) + FT_TRACE4(( " interpretation failed with error code 0x%x\n", + error )); +#endif } else error = FT_Err_Ok; @@ -1002,17 +1073,17 @@ /* Set default metrics */ { - TT_Size_Metrics* metrics = &size->ttmetrics; + TT_Size_Metrics* tt_metrics = &size->ttmetrics; - metrics->rotated = FALSE; - metrics->stretched = FALSE; + tt_metrics->rotated = FALSE; + tt_metrics->stretched = FALSE; /* set default engine compensation */ - metrics->compensations[0] = 0; /* gray */ - metrics->compensations[1] = 0; /* black */ - metrics->compensations[2] = 0; /* white */ - metrics->compensations[3] = 0; /* reserved */ + tt_metrics->compensations[0] = 0; /* gray */ + tt_metrics->compensations[1] = 0; /* black */ + tt_metrics->compensations[2] = 0; /* white */ + tt_metrics->compensations[3] = 0; /* reserved */ } /* allocate function defs, instruction defs, cvt, and storage area */ @@ -1075,8 +1146,10 @@ if ( size->bytecode_ready < 0 ) error = tt_size_init_bytecode( (FT_Size)size, pedantic ); + else + error = size->bytecode_ready; - if ( error || size->bytecode_ready ) + if ( error ) goto Exit; /* rescale CVT when needed */ @@ -1108,6 +1181,8 @@ error = tt_size_run_prep( size, pedantic ); } + else + error = size->cvt_ready; Exit: return error; @@ -1184,26 +1259,34 @@ /* have been changed. */ /* */ /* <Input> */ - /* size :: A handle to the target size object. */ + /* size :: A handle to the target size object. */ + /* */ + /* only_height :: Only recompute ascender, descender, and height; */ + /* this flag is used for variation fonts where */ + /* `tt_size_reset' is used as an iterator function. */ /* */ FT_LOCAL_DEF( FT_Error ) - tt_size_reset( TT_Size size ) + tt_size_reset( TT_Size size, + FT_Bool only_height ) { TT_Face face; - FT_Error error = FT_Err_Ok; - FT_Size_Metrics* metrics; - + FT_Size_Metrics* size_metrics; - size->ttmetrics.valid = FALSE; face = (TT_Face)size->root.face; - metrics = &size->metrics; + /* nothing to do for CFF2 */ + if ( face->is_cff2 ) + return FT_Err_Ok; + + size->ttmetrics.valid = FALSE; + + size_metrics = &size->hinted_metrics; /* copy the result from base layer */ - *metrics = size->root.metrics; + *size_metrics = size->root.metrics; - if ( metrics->x_ppem < 1 || metrics->y_ppem < 1 ) + if ( size_metrics->x_ppem < 1 || size_metrics->y_ppem < 1 ) return FT_THROW( Invalid_PPem ); /* This bit flag, if set, indicates that the ppems must be */ @@ -1212,48 +1295,66 @@ /* */ if ( face->header.Flags & 8 ) { - metrics->x_scale = FT_DivFix( metrics->x_ppem << 6, - face->root.units_per_EM ); - metrics->y_scale = FT_DivFix( metrics->y_ppem << 6, - face->root.units_per_EM ); - - metrics->ascender = - FT_PIX_ROUND( FT_MulFix( face->root.ascender, metrics->y_scale ) ); - metrics->descender = - FT_PIX_ROUND( FT_MulFix( face->root.descender, metrics->y_scale ) ); - metrics->height = - FT_PIX_ROUND( FT_MulFix( face->root.height, metrics->y_scale ) ); - metrics->max_advance = - FT_PIX_ROUND( FT_MulFix( face->root.max_advance_width, - metrics->x_scale ) ); + /* the TT spec always asks for ROUND, not FLOOR or CEIL */ + size_metrics->ascender = FT_PIX_ROUND( + FT_MulFix( face->root.ascender, + size_metrics->y_scale ) ); + size_metrics->descender = FT_PIX_ROUND( + FT_MulFix( face->root.descender, + size_metrics->y_scale ) ); + size_metrics->height = FT_PIX_ROUND( + FT_MulFix( face->root.height, + size_metrics->y_scale ) ); + } + + size->ttmetrics.valid = TRUE; + + if ( only_height ) + { + /* we must not recompute the scaling values here since */ + /* `tt_size_reset' was already called (with only_height = 0) */ + return FT_Err_Ok; + } + + if ( face->header.Flags & 8 ) + { + /* base scaling values on integer ppem values, */ + /* as mandated by the TrueType specification */ + size_metrics->x_scale = FT_DivFix( size_metrics->x_ppem << 6, + face->root.units_per_EM ); + size_metrics->y_scale = FT_DivFix( size_metrics->y_ppem << 6, + face->root.units_per_EM ); + + size_metrics->max_advance = FT_PIX_ROUND( + FT_MulFix( face->root.max_advance_width, + size_metrics->x_scale ) ); } /* compute new transformation */ - if ( metrics->x_ppem >= metrics->y_ppem ) + if ( size_metrics->x_ppem >= size_metrics->y_ppem ) { - size->ttmetrics.scale = metrics->x_scale; - size->ttmetrics.ppem = metrics->x_ppem; + size->ttmetrics.scale = size_metrics->x_scale; + size->ttmetrics.ppem = size_metrics->x_ppem; size->ttmetrics.x_ratio = 0x10000L; - size->ttmetrics.y_ratio = FT_DivFix( metrics->y_ppem, - metrics->x_ppem ); + size->ttmetrics.y_ratio = FT_DivFix( size_metrics->y_ppem, + size_metrics->x_ppem ); } else { - size->ttmetrics.scale = metrics->y_scale; - size->ttmetrics.ppem = metrics->y_ppem; - size->ttmetrics.x_ratio = FT_DivFix( metrics->x_ppem, - metrics->y_ppem ); + size->ttmetrics.scale = size_metrics->y_scale; + size->ttmetrics.ppem = size_metrics->y_ppem; + size->ttmetrics.x_ratio = FT_DivFix( size_metrics->x_ppem, + size_metrics->y_ppem ); size->ttmetrics.y_ratio = 0x10000L; } + size->metrics = size_metrics; + #ifdef TT_USE_BYTECODE_INTERPRETER size->cvt_ready = -1; #endif /* TT_USE_BYTECODE_INTERPRETER */ - if ( !error ) - size->ttmetrics.valid = TRUE; - - return error; + return FT_Err_Ok; } diff --git a/modules/freetype2/src/truetype/ttobjs.h b/modules/freetype2/src/truetype/ttobjs.h index 98ad38373..38fa30e4e 100644 --- a/modules/freetype2/src/truetype/ttobjs.h +++ b/modules/freetype2/src/truetype/ttobjs.h @@ -4,7 +4,7 @@ /* */ /* Objects manager (specification). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -278,7 +278,8 @@ FT_BEGIN_HEADER /* we have our own copy of metrics so that we can modify */ /* it without affecting auto-hinting (when used) */ - FT_Size_Metrics metrics; + FT_Size_Metrics* metrics; /* for the current rendering mode */ + FT_Size_Metrics hinted_metrics; /* for the hinted rendering mode */ TT_Size_Metrics ttmetrics; @@ -389,7 +390,8 @@ FT_BEGIN_HEADER #endif /* TT_USE_BYTECODE_INTERPRETER */ FT_LOCAL( FT_Error ) - tt_size_reset( TT_Size size ); + tt_size_reset( TT_Size size, + FT_Bool only_height ); /*************************************************************************/ diff --git a/modules/freetype2/src/truetype/ttpic.c b/modules/freetype2/src/truetype/ttpic.c index 54a5b8bed..cdbb80639 100644 --- a/modules/freetype2/src/truetype/ttpic.c +++ b/modules/freetype2/src/truetype/ttpic.c @@ -4,7 +4,7 @@ /* */ /* The FreeType position independent code services for truetype module. */ /* */ -/* Copyright 2009-2016 by */ +/* Copyright 2009-2018 by */ /* Oran Agra and Mickey Gabel. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/ttpic.h b/modules/freetype2/src/truetype/ttpic.h index a71d589df..df878ae6f 100644 --- a/modules/freetype2/src/truetype/ttpic.h +++ b/modules/freetype2/src/truetype/ttpic.h @@ -4,7 +4,7 @@ /* */ /* The FreeType position independent code services for truetype module. */ /* */ -/* Copyright 2009-2016 by */ +/* Copyright 2009-2018 by */ /* Oran Agra and Mickey Gabel. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/ttpload.c b/modules/freetype2/src/truetype/ttpload.c index d756d3842..d9526ad08 100644 --- a/modules/freetype2/src/truetype/ttpload.c +++ b/modules/freetype2/src/truetype/ttpload.c @@ -4,7 +4,7 @@ /* */ /* TrueType-specific tables loader (body). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -247,13 +247,13 @@ if ( pos2 > face->glyf_len ) { /* We try to sanitize the last `loca' entry. */ - if ( gindex == face->num_locations - 1 ) + if ( gindex == face->num_locations - 2 ) { FT_TRACE1(( "tt_face_get_location:" - " too large offset (0x%08lx) found for glyph index %ld,\n" + " too large size (%ld bytes) found for glyph index %ld,\n" " " - " truncating at the end of `glyf' table (0x%08lx)\n", - pos2, gindex + 1, face->glyf_len )); + " truncating at the end of `glyf' table to %ld bytes\n", + pos2 - pos1, gindex, face->glyf_len - pos1 )); pos2 = face->glyf_len; } else diff --git a/modules/freetype2/src/truetype/ttpload.h b/modules/freetype2/src/truetype/ttpload.h index aa2e38e6e..fa1252724 100644 --- a/modules/freetype2/src/truetype/ttpload.h +++ b/modules/freetype2/src/truetype/ttpload.h @@ -4,7 +4,7 @@ /* */ /* TrueType-specific tables loader (specification). */ /* */ -/* Copyright 1996-2016 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ diff --git a/modules/freetype2/src/truetype/ttsubpix.c b/modules/freetype2/src/truetype/ttsubpix.c index 03950960a..d94bcc8b5 100644 --- a/modules/freetype2/src/truetype/ttsubpix.c +++ b/modules/freetype2/src/truetype/ttsubpix.c @@ -4,7 +4,7 @@ /* */ /* TrueType Subpixel Hinting. */ /* */ -/* Copyright 2010-2016 by */ +/* Copyright 2010-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -22,12 +22,13 @@ #include FT_INTERNAL_SFNT_H #include FT_TRUETYPE_TAGS_H #include FT_OUTLINE_H -#include FT_TRUETYPE_DRIVER_H +#include FT_DRIVER_H #include "ttsubpix.h" -#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY +#if defined( TT_USE_BYTECODE_INTERPRETER ) && \ + defined( TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY ) /*************************************************************************/ /* */ @@ -752,24 +753,24 @@ /* Does font name match rule family? */ - if ( strcmp( detected_font_name, rule_font_name ) == 0 ) + if ( ft_strcmp( detected_font_name, rule_font_name ) == 0 ) return TRUE; /* Is font name a wildcard ""? */ - if ( strcmp( rule_font_name, "" ) == 0 ) + if ( ft_strcmp( rule_font_name, "" ) == 0 ) return TRUE; /* Is font name contained in a class list? */ for ( i = 0; i < FAMILY_CLASS_RULES_SIZE; i++ ) { - if ( strcmp( FAMILY_CLASS_Rules[i].name, rule_font_name ) == 0 ) + if ( ft_strcmp( FAMILY_CLASS_Rules[i].name, rule_font_name ) == 0 ) { for ( j = 0; j < SPH_MAX_CLASS_MEMBERS; j++ ) { - if ( strcmp( FAMILY_CLASS_Rules[i].member[j], "" ) == 0 ) + if ( ft_strcmp( FAMILY_CLASS_Rules[i].member[j], "" ) == 0 ) continue; - if ( strcmp( FAMILY_CLASS_Rules[i].member[j], - detected_font_name ) == 0 ) + if ( ft_strcmp( FAMILY_CLASS_Rules[i].member[j], + detected_font_name ) == 0 ) return TRUE; } } @@ -787,24 +788,24 @@ /* Does font style match rule style? */ - if ( strcmp( detected_font_style, rule_font_style ) == 0 ) + if ( ft_strcmp( detected_font_style, rule_font_style ) == 0 ) return TRUE; /* Is font style a wildcard ""? */ - if ( strcmp( rule_font_style, "" ) == 0 ) + if ( ft_strcmp( rule_font_style, "" ) == 0 ) return TRUE; /* Is font style contained in a class list? */ for ( i = 0; i < STYLE_CLASS_RULES_SIZE; i++ ) { - if ( strcmp( STYLE_CLASS_Rules[i].name, rule_font_style ) == 0 ) + if ( ft_strcmp( STYLE_CLASS_Rules[i].name, rule_font_style ) == 0 ) { for ( j = 0; j < SPH_MAX_CLASS_MEMBERS; j++ ) { - if ( strcmp( STYLE_CLASS_Rules[i].member[j], "" ) == 0 ) + if ( ft_strcmp( STYLE_CLASS_Rules[i].member[j], "" ) == 0 ) continue; - if ( strcmp( STYLE_CLASS_Rules[i].member[j], - detected_font_style ) == 0 ) + if ( ft_strcmp( STYLE_CLASS_Rules[i].member[j], + detected_font_style ) == 0 ) return TRUE; } } @@ -905,7 +906,7 @@ { TT_Face face = loader->face; FT_String* family = face->root.family_name; - FT_UInt ppem = loader->size->metrics.x_ppem; + FT_UInt ppem = loader->size->metrics->x_ppem; FT_String* style = face->root.style_name; @@ -1000,12 +1001,14 @@ } } -#else /* !TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ +#else /* !(TT_USE_BYTECODE_INTERPRETER && */ + /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY) */ /* ANSI C doesn't like empty source files */ typedef int _tt_subpix_dummy; -#endif /* !TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */ +#endif /* !(TT_USE_BYTECODE_INTERPRETER && */ + /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY) */ /* END */ diff --git a/modules/freetype2/src/truetype/ttsubpix.h b/modules/freetype2/src/truetype/ttsubpix.h index 86844da66..1070bb016 100644 --- a/modules/freetype2/src/truetype/ttsubpix.h +++ b/modules/freetype2/src/truetype/ttsubpix.h @@ -4,7 +4,7 @@ /* */ /* TrueType Subpixel Hinting. */ /* */ -/* Copyright 2010-2016 by */ +/* Copyright 2010-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ |