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-rw-r--r--gfx/ots/src/kern.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/gfx/ots/src/kern.h b/gfx/ots/src/kern.h
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index 0000000000..38f056851b
--- /dev/null
+++ b/gfx/ots/src/kern.h
@@ -0,0 +1,49 @@
+// 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_KERN_H_
+#define OTS_KERN_H_
+
+#include <vector>
+
+#include "ots.h"
+
+namespace ots {
+
+struct OpenTypeKERNFormat0Pair {
+ uint16_t left;
+ uint16_t right;
+ int16_t value;
+};
+
+struct OpenTypeKERNFormat0 {
+ uint16_t version;
+ uint16_t coverage;
+ uint16_t search_range;
+ uint16_t entry_selector;
+ uint16_t range_shift;
+ std::vector<OpenTypeKERNFormat0Pair> pairs;
+};
+
+// Format 2 is not supported. Since the format is not supported by Windows,
+// WebFonts unlikely use it. I've checked thousands of proprietary fonts and
+// free fonts, and found no font uses the format.
+
+class OpenTypeKERN : public Table {
+ public:
+ explicit OpenTypeKERN(Font *font, uint32_t tag)
+ : Table(font, tag, tag) { }
+
+ bool Parse(const uint8_t *data, size_t length);
+ bool Serialize(OTSStream *out);
+ bool ShouldSerialize();
+
+ private:
+ uint16_t version;
+ std::vector<OpenTypeKERNFormat0> subtables;
+};
+
+} // namespace ots
+
+#endif // OTS_KERN_H_