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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/stat.h
parent36975f3865948f3faa959fe386e58b22783bd379 (diff)
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Issue #1288 - Part 4: Update the OpenType Sanitizer component to 8.0.0
Diffstat (limited to 'gfx/ots/src/stat.h')
-rw-r--r--gfx/ots/src/stat.h155
1 files changed, 155 insertions, 0 deletions
diff --git a/gfx/ots/src/stat.h b/gfx/ots/src/stat.h
new file mode 100644
index 000000000..873d08edc
--- /dev/null
+++ b/gfx/ots/src/stat.h
@@ -0,0 +1,155 @@
+// Copyright (c) 2018 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_STAT_H_
+#define OTS_STAT_H_
+
+#include <vector>
+
+#include "ots.h"
+
+namespace ots {
+
+// -----------------------------------------------------------------------------
+// OpenTypeSTAT Interface
+// -----------------------------------------------------------------------------
+
+class OpenTypeSTAT : public Table {
+ public:
+ explicit OpenTypeSTAT(Font* font, uint32_t tag)
+ : Table(font, tag, tag) { }
+
+ bool Parse(const uint8_t* data, size_t length);
+ bool Serialize(OTSStream* out);
+
+ private:
+ bool ValidateNameId(uint16_t nameid, bool allowPredefined = true);
+
+ uint16_t majorVersion;
+ uint16_t minorVersion;
+ uint16_t designAxisSize;
+ uint16_t designAxisCount;
+ uint32_t designAxesOffset;
+ uint16_t axisValueCount;
+ uint32_t offsetToAxisValueOffsets;
+ uint16_t elidedFallbackNameID;
+
+ struct AxisRecord {
+ uint32_t axisTag;
+ uint16_t axisNameID;
+ uint16_t axisOrdering;
+ };
+ std::vector<AxisRecord> designAxes;
+
+ typedef int32_t Fixed; /* 16.16 fixed-point value */
+
+ struct AxisValueFormat1 {
+ uint16_t axisIndex;
+ uint16_t flags;
+ uint16_t valueNameID;
+ Fixed value;
+ static size_t Length() {
+ return 3 * sizeof(uint16_t) + sizeof(Fixed);
+ }
+ };
+
+ struct AxisValueFormat2 {
+ uint16_t axisIndex;
+ uint16_t flags;
+ uint16_t valueNameID;
+ Fixed nominalValue;
+ Fixed rangeMinValue;
+ Fixed rangeMaxValue;
+ static size_t Length() {
+ return 3 * sizeof(uint16_t) + 3 * sizeof(Fixed);
+ }
+ };
+
+ struct AxisValueFormat3 {
+ uint16_t axisIndex;
+ uint16_t flags;
+ uint16_t valueNameID;
+ Fixed value;
+ Fixed linkedValue;
+ static size_t Length() {
+ return 3 * sizeof(uint16_t) + 2 * sizeof(Fixed);
+ }
+ };
+
+ struct AxisValueFormat4 {
+ uint16_t axisCount;
+ uint16_t flags;
+ uint16_t valueNameID;
+ struct AxisValue {
+ uint16_t axisIndex;
+ Fixed value;
+ };
+ std::vector<AxisValue> axisValues;
+ size_t Length() const {
+ return 3 * sizeof(uint16_t) + axisValues.size() * (sizeof(uint16_t) + sizeof(Fixed));
+ }
+ };
+
+ struct AxisValueRecord {
+ uint16_t format;
+ union {
+ AxisValueFormat1 format1;
+ AxisValueFormat2 format2;
+ AxisValueFormat3 format3;
+ AxisValueFormat4 format4;
+ };
+ explicit AxisValueRecord(uint16_t format_)
+ : format(format_)
+ {
+ if (format == 4) {
+ new (&this->format4) AxisValueFormat4();
+ }
+ }
+ AxisValueRecord(const AxisValueRecord& other_)
+ : format(other_.format)
+ {
+ switch (format) {
+ case 1:
+ format1 = other_.format1;
+ break;
+ case 2:
+ format2 = other_.format2;
+ break;
+ case 3:
+ format3 = other_.format3;
+ break;
+ case 4:
+ new (&this->format4) AxisValueFormat4();
+ format4 = other_.format4;
+ break;
+ }
+ }
+ ~AxisValueRecord() {
+ if (format == 4) {
+ this->format4.~AxisValueFormat4();
+ }
+ }
+ uint32_t Length() const {
+ switch (format) {
+ case 1:
+ return sizeof(uint16_t) + format1.Length();
+ case 2:
+ return sizeof(uint16_t) + format2.Length();
+ case 3:
+ return sizeof(uint16_t) + format3.Length();
+ case 4:
+ return sizeof(uint16_t) + format4.Length();
+ default:
+ // can't happen
+ return 0;
+ }
+ }
+ };
+
+ std::vector<AxisValueRecord> axisValues;
+};
+
+} // namespace ots
+
+#endif // OTS_STAT_H_