/*
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* Copyright 2011 Google Inc. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SFNTLY_CPP_SRC_SFNTLY_TAG_H_
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#define SFNTLY_CPP_SRC_SFNTLY_TAG_H_
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#include <cstddef>
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#include "sfntly/port/type.h"
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namespace sfntly {
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// Font identification tags used for tables, features, etc.
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// Tag names are consistent with the OpenType and sfnt specs.
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struct Tag {
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static const int32_t ttcf;
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// Table Type Tags
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// required tables
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static const int32_t cmap;
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static const int32_t head;
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static const int32_t hhea;
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static const int32_t hmtx;
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static const int32_t maxp;
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static const int32_t name;
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static const int32_t OS_2;
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static const int32_t post;
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// TrueType outline tables
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static const int32_t cvt;
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static const int32_t fpgm;
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static const int32_t glyf;
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static const int32_t loca;
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static const int32_t prep;
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// PostScript outline tables
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static const int32_t CFF;
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static const int32_t VORG;
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// opentype bitmap glyph outlines
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static const int32_t EBDT;
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static const int32_t EBLC;
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static const int32_t EBSC;
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// advanced typographic features
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static const int32_t BASE;
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static const int32_t GDEF;
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static const int32_t GPOS;
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static const int32_t GSUB;
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static const int32_t JSTF;
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// other
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static const int32_t DSIG;
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static const int32_t gasp;
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static const int32_t hdmx;
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static const int32_t kern;
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static const int32_t LTSH;
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static const int32_t PCLT;
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static const int32_t VDMX;
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static const int32_t vhea;
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static const int32_t vmtx;
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// AAT tables
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static const int32_t bsln;
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static const int32_t feat;
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static const int32_t lcar;
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static const int32_t morx;
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static const int32_t opbd;
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static const int32_t prop;
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// Graphite tables
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static const int32_t Feat;
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static const int32_t Glat;
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static const int32_t Gloc;
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static const int32_t Sile;
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static const int32_t Silf;
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// truetype bitmap font tables
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static const int32_t bhed;
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static const int32_t bdat;
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static const int32_t bloc;
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};
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// Create integer tag value for human readable tag name.
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inline int32_t GenerateTag(int32_t a, int32_t b, int32_t c, int32_t d) {
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return (a << 24) | (b << 16) | (c << 8) | d;
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}
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// Translate tag to human readable string.
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// The Caller must delete[] the returned value.
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inline char* TagToString(int32_t tag) {
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char *name = new char[5];
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name[0] = static_cast<char>((tag & 0xff000000) >> 24);
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name[1] = static_cast<char>((tag & 0x00ff0000) >> 16);
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name[2] = static_cast<char>((tag & 0x0000ff00) >> 8);
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name[3] = static_cast<char>(tag & 0x000000ff);
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name[4] = 0;
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return name;
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}
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// Note: For Java, these two orderings are in Font class. Moved here to avoid
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// VC++ bug of not populating correct values.
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extern const int32_t CFF_TABLE_ORDERING[];
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extern const size_t CFF_TABLE_ORDERING_SIZE;
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extern const int32_t TRUE_TYPE_TABLE_ORDERING[];
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extern const size_t TRUE_TYPE_TABLE_ORDERING_SIZE;
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} // namespace sfntly
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#endif // SFNTLY_CPP_SRC_SFNTLY_TAG_H_
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