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