88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
// Copyright (c) 2009-2017 The OTS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef OTS_CMAP_H_
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#define OTS_CMAP_H_
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#include <vector>
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#include "ots.h"
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namespace ots {
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struct OpenTypeCMAPSubtableRange {
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uint32_t start_range;
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uint32_t end_range;
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uint32_t start_glyph_id;
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};
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struct OpenTypeCMAPSubtableVSRange {
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uint32_t unicode_value;
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uint8_t additional_count;
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};
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struct OpenTypeCMAPSubtableVSMapping {
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uint32_t unicode_value;
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uint16_t glyph_id;
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};
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struct OpenTypeCMAPSubtableVSRecord {
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uint32_t var_selector;
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uint32_t default_offset;
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uint32_t non_default_offset;
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std::vector<OpenTypeCMAPSubtableVSRange> ranges;
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std::vector<OpenTypeCMAPSubtableVSMapping> mappings;
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};
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class OpenTypeCMAP : public Table {
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public:
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explicit OpenTypeCMAP(Font *font, uint32_t tag)
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: Table(font, tag, tag),
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subtable_0_3_4_data(NULL),
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subtable_0_3_4_length(0),
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subtable_0_5_14_length(0),
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subtable_3_0_4_data(NULL),
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subtable_3_0_4_length(0),
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subtable_3_1_4_data(NULL),
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subtable_3_1_4_length(0) {
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}
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bool Parse(const uint8_t *data, size_t length);
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bool Serialize(OTSStream *out);
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private:
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// Platform 0, Encoding 3, Format 4, Unicode BMP table.
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const uint8_t *subtable_0_3_4_data;
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size_t subtable_0_3_4_length;
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// Platform 0, Encoding 5, Format 14, Unicode Variation Sequence table.
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size_t subtable_0_5_14_length;
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std::vector<OpenTypeCMAPSubtableVSRecord> subtable_0_5_14;
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// Platform 3, Encoding 0, Format 4, MS Symbol table.
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const uint8_t *subtable_3_0_4_data;
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size_t subtable_3_0_4_length;
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// Platform 3, Encoding 1, Format 4, MS Unicode BMP table.
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const uint8_t *subtable_3_1_4_data;
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size_t subtable_3_1_4_length;
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// Platform 3, Encoding 10, Format 12, MS Unicode UCS-4 table.
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std::vector<OpenTypeCMAPSubtableRange> subtable_3_10_12;
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// Platform 3, Encoding 10, Format 13, MS UCS-4 Fallback table.
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std::vector<OpenTypeCMAPSubtableRange> subtable_3_10_13;
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// Platform 1, Encoding 0, Format 0, Mac Roman table.
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std::vector<uint8_t> subtable_1_0_0;
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bool ParseFormat4(int platform, int encoding, const uint8_t *data,
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size_t length, uint16_t num_glyphs);
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bool Parse31012(const uint8_t *data, size_t length, uint16_t num_glyphs);
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bool Parse31013(const uint8_t *data, size_t length, uint16_t num_glyphs);
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bool Parse0514(const uint8_t *data, size_t length, uint16_t num_glyphs);
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bool Parse100(const uint8_t *data, size_t length);
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};
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} // namespace ots
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#endif
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