1 files changed, 54 insertions, 0 deletions
diff --git a/gfx/ots/src/vdmx.h b/gfx/ots/src/vdmx.h
new file mode 100644
index 0000000000..6ccf6dc1b6
--- /dev/null
+++ b/gfx/ots/src/vdmx.h
@@ -0,0 +1,54 @@
+// 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_VDMX_H_
+#define OTS_VDMX_H_
+
+#include <vector>
+
+#include "ots.h"
+
+namespace ots {
+
+struct OpenTypeVDMXRatioRecord {
+  uint8_t charset;
+  uint8_t x_ratio;
+  uint8_t y_start_ratio;
+  uint8_t y_end_ratio;
+};
+
+struct OpenTypeVDMXVTable {
+  uint16_t y_pel_height;
+  int16_t y_max;
+  int16_t y_min;
+};
+
+struct OpenTypeVDMXGroup {
+  uint16_t recs;
+  uint8_t startsz;
+  uint8_t endsz;
+  std::vector<OpenTypeVDMXVTable> entries;
+};
+
+class OpenTypeVDMX : public Table {
+ public:
+  explicit OpenTypeVDMX(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;
+  uint16_t num_recs;
+  uint16_t num_ratios;
+  std::vector<OpenTypeVDMXRatioRecord> rat_ranges;
+  std::vector<uint16_t> offsets;
+  std::vector<OpenTypeVDMXGroup> groups;
+};
+
+}  // namespace ots
+
+#endif  // OTS_VDMX_H_