62 lines
1.7 KiB
C++
62 lines
1.7 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_FEAT_H_
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#define OTS_FEAT_H_
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#include <vector>
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#include <unordered_set>
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#include "ots.h"
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#include "graphite.h"
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namespace ots {
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class OpenTypeFEAT : public Table {
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public:
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explicit OpenTypeFEAT(Font* font, uint32_t tag)
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: Table(font, tag, tag) { }
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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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bool IsValidFeatureId(uint32_t id) const;
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private:
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struct FeatureDefn : public TablePart<OpenTypeFEAT> {
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explicit FeatureDefn(OpenTypeFEAT* parent)
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: TablePart<OpenTypeFEAT>(parent) { }
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bool ParsePart(Buffer& table);
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bool SerializePart(OTSStream* out) const;
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uint32_t id;
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uint16_t numSettings;
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uint16_t reserved;
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uint32_t offset;
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uint16_t flags;
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static const uint16_t HAS_DEFAULT_SETTING = 0x4000;
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static const uint16_t RESERVED = 0x3F00;
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static const uint16_t DEFAULT_SETTING = 0x00FF;
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uint16_t label;
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};
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struct FeatureSettingDefn : public TablePart<OpenTypeFEAT> {
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explicit FeatureSettingDefn(OpenTypeFEAT* parent)
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: TablePart<OpenTypeFEAT>(parent) { }
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bool ParsePart(Buffer& table) { return ParsePart(table, true); }
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bool ParsePart(Buffer& table, bool used);
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bool SerializePart(OTSStream* out) const;
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int16_t value;
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uint16_t label;
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};
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uint32_t version;
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uint16_t numFeat;
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uint16_t reserved;
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uint32_t reserved2;
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std::vector<FeatureDefn> features;
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std::vector<FeatureSettingDefn> featSettings;
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std::unordered_set<uint32_t> feature_ids;
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};
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} // namespace ots
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#endif // OTS_FEAT_H_
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