Issue #1288 - Part 4: Update the OpenType Sanitizer component to 8.0.0

1 files changed, 196 insertions, 0 deletions

diff --git a/gfx/ots/src/silf.h b/gfx/ots/src/silf.h
new file mode 100644
index 000000000..b6c08032f
--- /dev/null
+++ b/gfx/ots/src/silf.h
@@ -0,0 +1,196 @@
+// 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_SILF_H_
+#define OTS_SILF_H_
+
+#include <vector>
+
+#include "ots.h"
+#include "graphite.h"
+
+namespace ots {
+
+class OpenTypeSILF : public Table {
+ public:
+  explicit OpenTypeSILF(Font* font, uint32_t tag)
+      : Table(font, tag, 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 SILSub : public TablePart<OpenTypeSILF> {
+    explicit SILSub(OpenTypeSILF* parent)
+        : TablePart<OpenTypeSILF>(parent), classes(parent) { }
+    bool ParsePart(Buffer& table);
+    bool SerializePart(OTSStream* out) const;
+    struct JustificationLevel : public TablePart<OpenTypeSILF> {
+      explicit JustificationLevel(OpenTypeSILF* parent)
+          : TablePart<OpenTypeSILF>(parent) { }
+      bool ParsePart(Buffer& table);
+      bool SerializePart(OTSStream* out) const;
+      uint8_t attrStretch;
+      uint8_t attrShrink;
+      uint8_t attrStep;
+      uint8_t attrWeight;
+      uint8_t runto;
+      uint8_t reserved;
+      uint8_t reserved2;
+      uint8_t reserved3;
+    };
+    struct PseudoMap : public TablePart<OpenTypeSILF> {
+      explicit PseudoMap(OpenTypeSILF* parent)
+          : TablePart<OpenTypeSILF>(parent) { }
+      bool ParsePart(Buffer& table);
+      bool SerializePart(OTSStream* out) const;
+      uint32_t unicode;
+      uint16_t nPseudo;
+    };
+    struct ClassMap : public TablePart<OpenTypeSILF> {
+      explicit ClassMap(OpenTypeSILF* parent)
+          : TablePart<OpenTypeSILF>(parent) { }
+      bool ParsePart(Buffer& table);
+      bool SerializePart(OTSStream* out) const;
+      struct LookupClass : public TablePart<OpenTypeSILF> {
+        explicit LookupClass(OpenTypeSILF* parent)
+            : TablePart<OpenTypeSILF>(parent) { }
+        bool ParsePart(Buffer& table);
+        bool SerializePart(OTSStream* out) const;
+        struct LookupPair : public TablePart<OpenTypeSILF> {
+          explicit LookupPair(OpenTypeSILF* parent)
+              : TablePart<OpenTypeSILF>(parent) { }
+          bool ParsePart(Buffer& table);
+          bool SerializePart(OTSStream* out) const;
+          uint16_t glyphId;
+          uint16_t index;
+        };
+        uint16_t numIDs;
+        uint16_t searchRange;
+        uint16_t entrySelector;
+        uint16_t rangeShift;
+        std::vector<LookupPair> lookups;
+      };
+      uint16_t numClass;
+      uint16_t numLinear;
+      std::vector<uint32_t> oClass;  // uint16_t before v4
+      std::vector<uint16_t> glyphs;
+      std::vector<LookupClass> lookups;
+    };
+    struct SILPass : public TablePart<OpenTypeSILF> {
+      explicit SILPass(OpenTypeSILF* parent)
+          : TablePart<OpenTypeSILF>(parent) { }
+      bool ParsePart(Buffer& table) { return false; }
+      bool ParsePart(Buffer& table, const size_t SILSub_init_offset,
+                                    const size_t next_pass_offset);
+      bool SerializePart(OTSStream* out) const;
+      struct PassRange : public TablePart<OpenTypeSILF> {
+        explicit PassRange(OpenTypeSILF* parent)
+            : TablePart<OpenTypeSILF>(parent) { }
+        bool ParsePart(Buffer& table);
+        bool SerializePart(OTSStream* out) const;
+        uint16_t firstId;
+        uint16_t lastId;
+        uint16_t colId;
+      };
+      uint8_t flags;
+      uint8_t maxRuleLoop;
+      uint8_t maxRuleContext;
+      uint8_t maxBackup;
+      uint16_t numRules;
+      uint16_t fsmOffset;
+      uint32_t pcCode;
+      uint32_t rcCode;
+      uint32_t aCode;
+      uint32_t oDebug;
+      uint16_t numRows;
+      uint16_t numTransitional;
+      uint16_t numSuccess;
+      uint16_t numColumns;
+      uint16_t numRange;
+      uint16_t searchRange;
+      uint16_t entrySelector;
+      uint16_t rangeShift;
+      std::vector<PassRange> ranges;
+      std::vector<uint16_t> oRuleMap;
+      std::vector<uint16_t> ruleMap;
+      uint8_t minRulePreContext;
+      uint8_t maxRulePreContext;
+      std::vector<int16_t> startStates;
+      std::vector<uint16_t> ruleSortKeys;
+      std::vector<uint8_t> rulePreContext;
+      uint8_t collisionThreshold;  // reserved before v5
+      uint16_t pConstraint;
+      std::vector<uint16_t> oConstraints;
+      std::vector<uint16_t> oActions;
+      std::vector<std::vector<uint16_t>> stateTrans;
+      uint8_t reserved2;
+      std::vector<uint8_t> passConstraints;
+      std::vector<uint8_t> ruleConstraints;
+      std::vector<uint8_t> actions;
+      std::vector<uint16_t> dActions;
+      std::vector<uint16_t> dStates;
+      std::vector<uint16_t> dCols;
+    };
+    uint32_t ruleVersion;
+    uint16_t passOffset;
+    uint16_t pseudosOffset;
+    uint16_t maxGlyphID;
+    int16_t extraAscent;
+    int16_t extraDescent;
+    uint8_t numPasses;
+    uint8_t iSubst;
+    uint8_t iPos;
+    uint8_t iJust;
+    uint8_t iBidi;
+    uint8_t flags;
+    uint8_t maxPreContext;
+    uint8_t maxPostContext;
+    uint8_t attrPseudo;
+    uint8_t attrBreakWeight;
+    uint8_t attrDirectionality;
+    uint8_t attrMirroring;  // reserved before v4
+    uint8_t attrSkipPasses;  // reserved2 before v4
+    uint8_t numJLevels;
+    std::vector<JustificationLevel> jLevels;
+    uint16_t numLigComp;
+    uint8_t numUserDefn;
+    uint8_t maxCompPerLig;
+    uint8_t direction;
+    uint8_t attCollisions;  // reserved3 before v5
+    uint8_t reserved4;
+    uint8_t reserved5;
+    uint8_t reserved6;
+    uint8_t numCritFeatures;
+    std::vector<uint16_t> critFeatures;
+    uint8_t reserved7;
+    uint8_t numScriptTag;
+    std::vector<uint32_t> scriptTag;
+    uint16_t lbGID;
+    std::vector<uint32_t> oPasses;
+    uint16_t numPseudo;
+    uint16_t searchPseudo;
+    uint16_t pseudoSelector;
+    uint16_t pseudoShift;
+    std::vector<PseudoMap> pMaps;
+    ClassMap classes;
+    std::vector<SILPass> passes;
+  };
+  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 COMPILER_VERSION = 0x07FFFFFF;
+  uint16_t numSub;
+  uint16_t reserved;
+  std::vector<uint32_t> offset;
+  std::vector<SILSub> tables;
+};
+
+}  // namespace ots
+
+#endif  // OTS_SILF_H_