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// 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_CMAP_H_
#define OTS_CMAP_H_
#include <vector>
#include "ots.h"
namespace ots {
struct OpenTypeCMAPSubtableRange {
uint32_t start_range;
uint32_t end_range;
uint32_t start_glyph_id;
};
struct OpenTypeCMAPSubtableVSRange {
uint32_t unicode_value;
uint8_t additional_count;
};
struct OpenTypeCMAPSubtableVSMapping {
uint32_t unicode_value;
uint16_t glyph_id;
};
struct OpenTypeCMAPSubtableVSRecord {
uint32_t var_selector;
uint32_t default_offset;
uint32_t non_default_offset;
std::vector<OpenTypeCMAPSubtableVSRange> ranges;
std::vector<OpenTypeCMAPSubtableVSMapping> mappings;
};
class OpenTypeCMAP : public Table {
public:
explicit OpenTypeCMAP(Font *font, uint32_t tag)
: Table(font, tag, tag),
subtable_0_3_4_data(NULL),
subtable_0_3_4_length(0),
subtable_0_5_14_length(0),
subtable_3_0_4_data(NULL),
subtable_3_0_4_length(0),
subtable_3_1_4_data(NULL),
subtable_3_1_4_length(0) {
}
bool Parse(const uint8_t *data, size_t length);
bool Serialize(OTSStream *out);
private:
// Platform 0, Encoding 3, Format 4, Unicode BMP table.
const uint8_t *subtable_0_3_4_data;
size_t subtable_0_3_4_length;
// Platform 0, Encoding 5, Format 14, Unicode Variation Sequence table.
size_t subtable_0_5_14_length;
std::vector<OpenTypeCMAPSubtableVSRecord> subtable_0_5_14;
// Platform 3, Encoding 0, Format 4, MS Symbol table.
const uint8_t *subtable_3_0_4_data;
size_t subtable_3_0_4_length;
// Platform 3, Encoding 1, Format 4, MS Unicode BMP table.
const uint8_t *subtable_3_1_4_data;
size_t subtable_3_1_4_length;
// Platform 3, Encoding 10, Format 12, MS Unicode UCS-4 table.
std::vector<OpenTypeCMAPSubtableRange> subtable_3_10_12;
// Platform 3, Encoding 10, Format 13, MS UCS-4 Fallback table.
std::vector<OpenTypeCMAPSubtableRange> subtable_3_10_13;
// Platform 1, Encoding 0, Format 0, Mac Roman table.
std::vector<uint8_t> subtable_1_0_0;
bool ParseFormat4(int platform, int encoding, const uint8_t *data,
size_t length, uint16_t num_glyphs);
bool Parse31012(const uint8_t *data, size_t length, uint16_t num_glyphs);
bool Parse31013(const uint8_t *data, size_t length, uint16_t num_glyphs);
bool Parse0514(const uint8_t *data, size_t length, uint16_t num_glyphs);
bool Parse100(const uint8_t *data, size_t length);
};
} // namespace ots
#endif
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