summaryrefslogtreecommitdiffstats
path: root/gfx/ots/src/glat.h
diff options
context:
space:
mode:
authorwolfbeast <mcwerewolf@wolfbeast.com>2019-11-14 10:07:01 +0100
committerwolfbeast <mcwerewolf@wolfbeast.com>2019-11-14 10:07:01 +0100
commit0f8691a48869932cd3de5195f5211c25e4691b21 (patch)
tree829675d64c457be0b447dfbcf9534cc22f83d392 /gfx/ots/src/glat.h
parent36975f3865948f3faa959fe386e58b22783bd379 (diff)
downloadUXP-0f8691a48869932cd3de5195f5211c25e4691b21.tar
UXP-0f8691a48869932cd3de5195f5211c25e4691b21.tar.gz
UXP-0f8691a48869932cd3de5195f5211c25e4691b21.tar.lz
UXP-0f8691a48869932cd3de5195f5211c25e4691b21.tar.xz
UXP-0f8691a48869932cd3de5195f5211c25e4691b21.zip
Issue #1288 - Part 4: Update the OpenType Sanitizer component to 8.0.0
Diffstat (limited to 'gfx/ots/src/glat.h')
-rw-r--r--gfx/ots/src/glat.h172
1 files changed, 172 insertions, 0 deletions
diff --git a/gfx/ots/src/glat.h b/gfx/ots/src/glat.h
new file mode 100644
index 000000000..04c9c1cce
--- /dev/null
+++ b/gfx/ots/src/glat.h
@@ -0,0 +1,172 @@
+// Copyright (c) 2009-2017 The OTS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef OTS_GLAT_H_
+#define OTS_GLAT_H_
+
+#include <vector>
+
+#include "ots.h"
+#include "graphite.h"
+
+namespace ots {
+
+// -----------------------------------------------------------------------------
+// OpenTypeGLAT_Basic Interface
+// -----------------------------------------------------------------------------
+
+class OpenTypeGLAT_Basic : public Table {
+ public:
+ explicit OpenTypeGLAT_Basic(Font* font, uint32_t tag)
+ : Table(font, tag, tag) { }
+
+ virtual bool Parse(const uint8_t* data, size_t length) = 0;
+ virtual bool Serialize(OTSStream* out) = 0;
+};
+
+// -----------------------------------------------------------------------------
+// OpenTypeGLAT_v1
+// -----------------------------------------------------------------------------
+
+class OpenTypeGLAT_v1 : public OpenTypeGLAT_Basic {
+ public:
+ explicit OpenTypeGLAT_v1(Font* font, uint32_t tag)
+ : OpenTypeGLAT_Basic(font, tag) { }
+
+ bool Parse(const uint8_t* data, size_t length);
+ bool Serialize(OTSStream* out);
+
+ private:
+ struct GlatEntry : public TablePart<OpenTypeGLAT_v1> {
+ explicit GlatEntry(OpenTypeGLAT_v1* parent)
+ : TablePart<OpenTypeGLAT_v1>(parent) { }
+ bool ParsePart(Buffer& table);
+ bool SerializePart(OTSStream* out) const;
+ uint8_t attNum;
+ uint8_t num;
+ std::vector<int16_t> attributes;
+ };
+ uint32_t version;
+ std::vector<GlatEntry> entries;
+};
+
+// -----------------------------------------------------------------------------
+// OpenTypeGLAT_v2
+// -----------------------------------------------------------------------------
+
+class OpenTypeGLAT_v2 : public OpenTypeGLAT_Basic {
+ public:
+ explicit OpenTypeGLAT_v2(Font* font, uint32_t tag)
+ : OpenTypeGLAT_Basic(font, tag) { }
+
+ bool Parse(const uint8_t* data, size_t length);
+ bool Serialize(OTSStream* out);
+
+ private:
+ struct GlatEntry : public TablePart<OpenTypeGLAT_v2> {
+ explicit GlatEntry(OpenTypeGLAT_v2* parent)
+ : TablePart<OpenTypeGLAT_v2>(parent) { }
+ bool ParsePart(Buffer& table);
+ bool SerializePart(OTSStream* out) const;
+ int16_t attNum;
+ int16_t num;
+ std::vector<int16_t> attributes;
+ };
+ uint32_t version;
+ std::vector<GlatEntry> entries;
+};
+
+// -----------------------------------------------------------------------------
+// OpenTypeGLAT_v3
+// -----------------------------------------------------------------------------
+
+class OpenTypeGLAT_v3 : public OpenTypeGLAT_Basic {
+ public:
+ explicit OpenTypeGLAT_v3(Font* font, uint32_t tag)
+ : OpenTypeGLAT_Basic(font, tag) { }
+
+ bool Parse(const uint8_t* data, size_t length) {
+ return this->Parse(data, length, false);
+ }
+ bool Serialize(OTSStream* out);
+
+ private:
+ bool Parse(const uint8_t* data, size_t length, bool prevent_decompression);
+ struct GlyphAttrs : public TablePart<OpenTypeGLAT_v3> {
+ explicit GlyphAttrs(OpenTypeGLAT_v3* parent)
+ : TablePart<OpenTypeGLAT_v3>(parent), octabox(parent) { }
+ bool ParsePart(Buffer& table) { return false; }
+ bool ParsePart(Buffer& table, const size_t size);
+ bool SerializePart(OTSStream* out) const;
+ struct OctaboxMetrics : public TablePart<OpenTypeGLAT_v3> {
+ explicit OctaboxMetrics(OpenTypeGLAT_v3* parent)
+ : TablePart<OpenTypeGLAT_v3>(parent) { }
+ bool ParsePart(Buffer& table);
+ bool SerializePart(OTSStream* out) const;
+ struct SubboxEntry : public TablePart<OpenTypeGLAT_v3> {
+ explicit SubboxEntry(OpenTypeGLAT_v3* parent)
+ : TablePart<OpenTypeGLAT_v3>(parent) { }
+ bool ParsePart(Buffer& table);
+ bool SerializePart(OTSStream* out) const;
+ uint8_t left;
+ uint8_t right;
+ uint8_t bottom;
+ uint8_t top;
+ uint8_t diag_pos_min;
+ uint8_t diag_pos_max;
+ uint8_t diag_neg_min;
+ uint8_t diag_neg_max;
+ };
+ uint16_t subbox_bitmap;
+ uint8_t diag_neg_min;
+ uint8_t diag_neg_max;
+ uint8_t diag_pos_min;
+ uint8_t diag_pos_max;
+ std::vector<SubboxEntry> subboxes;
+ };
+ struct GlatEntry : public TablePart<OpenTypeGLAT_v3> {
+ explicit GlatEntry(OpenTypeGLAT_v3* parent)
+ : TablePart<OpenTypeGLAT_v3>(parent) { }
+ bool ParsePart(Buffer& table);
+ bool SerializePart(OTSStream* out) const;
+ int16_t attNum;
+ int16_t num;
+ std::vector<int16_t> attributes;
+ };
+ OctaboxMetrics octabox;
+ std::vector<GlatEntry> entries;
+ };
+ uint32_t version;
+ uint32_t compHead; // compression header
+ static const uint32_t SCHEME = 0xF8000000;
+ static const uint32_t FULL_SIZE = 0x07FFFFFF;
+ static const uint32_t RESERVED = 0x07FFFFFE;
+ static const uint32_t OCTABOXES = 0x00000001;
+ std::vector<GlyphAttrs> entries;
+};
+
+// -----------------------------------------------------------------------------
+// OpenTypeGLAT
+// -----------------------------------------------------------------------------
+
+class OpenTypeGLAT : public Table {
+ public:
+ explicit OpenTypeGLAT(Font* font, uint32_t tag)
+ : Table(font, tag, tag), font(font), tag(tag) { }
+ OpenTypeGLAT(const OpenTypeGLAT& other) = delete;
+ OpenTypeGLAT& operator=(const OpenTypeGLAT& other) = delete;
+ ~OpenTypeGLAT() { delete handler; }
+
+ bool Parse(const uint8_t* data, size_t length);
+ bool Serialize(OTSStream* out);
+
+ private:
+ Font* font;
+ uint32_t tag;
+ OpenTypeGLAT_Basic* handler = nullptr;
+};
+
+} // namespace ots
+
+#endif // OTS_GLAT_H_