1 files changed, 61 insertions, 0 deletions
diff --git a/gfx/ots/src/feat.h b/gfx/ots/src/feat.h
new file mode 100644
index 000000000..29c2656ff
--- /dev/null
+++ b/gfx/ots/src/feat.h
@@ -0,0 +1,61 @@
+// 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_FEAT_H_
+#define OTS_FEAT_H_
+
+#include <vector>
+#include <unordered_set>
+
+#include "ots.h"
+#include "graphite.h"
+
+namespace ots {
+
+class OpenTypeFEAT : public Table {
+ public:
+  explicit OpenTypeFEAT(Font* font, uint32_t tag)
+      : Table(font, tag, tag) { }
+
+  bool Parse(const uint8_t* data, size_t length);
+  bool Serialize(OTSStream* out);
+  bool IsValidFeatureId(uint32_t id) const;
+
+ private:
+  struct FeatureDefn : public TablePart<OpenTypeFEAT> {
+    explicit FeatureDefn(OpenTypeFEAT* parent)
+        : TablePart<OpenTypeFEAT>(parent) { }
+    bool ParsePart(Buffer& table);
+    bool SerializePart(OTSStream* out) const;
+    uint32_t id;
+    uint16_t numSettings;
+    uint16_t reserved;
+    uint32_t offset;
+    uint16_t flags;
+    static const uint16_t HAS_DEFAULT_SETTING = 0x4000;
+    static const uint16_t RESERVED = 0x3F00;
+    static const uint16_t DEFAULT_SETTING = 0x00FF;
+    uint16_t label;
+  };
+  struct FeatureSettingDefn : public TablePart<OpenTypeFEAT> {
+    explicit FeatureSettingDefn(OpenTypeFEAT* parent)
+        : TablePart<OpenTypeFEAT>(parent) { }
+    bool ParsePart(Buffer& table) { return ParsePart(table, true); }
+    bool ParsePart(Buffer& table, bool used);
+    bool SerializePart(OTSStream* out) const;
+    int16_t value;
+    uint16_t label;
+  };
+  uint32_t version;
+  uint16_t numFeat;
+  uint16_t reserved;
+  uint32_t reserved2;
+  std::vector<FeatureDefn> features;
+  std::vector<FeatureSettingDefn> featSettings;
+  std::unordered_set<uint32_t> feature_ids;
+};
+
+}  // namespace ots
+
+#endif  // OTS_FEAT_H_