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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSFNTHeader_DEFINED
#define SkSFNTHeader_DEFINED
#include "SkEndian.h"
#include "SkOTTableTypes.h"
//All SK_SFNT_ prefixed types should be considered as big endian.
typedef uint16_t SK_SFNT_USHORT;
typedef uint32_t SK_SFNT_ULONG;
#pragma pack(push, 1)
struct SkSFNTHeader {
SK_SFNT_ULONG fontType;
struct fontType_WindowsTrueType {
static const SK_OT_CHAR TAG0 = 0;
static const SK_OT_CHAR TAG1 = 1;
static const SK_OT_CHAR TAG2 = 0;
static const SK_OT_CHAR TAG3 = 0;
static const SK_OT_ULONG TAG = SkOTTableTAG<fontType_WindowsTrueType>::value;
};
struct fontType_MacTrueType {
static const SK_OT_CHAR TAG0 = 't';
static const SK_OT_CHAR TAG1 = 'r';
static const SK_OT_CHAR TAG2 = 'u';
static const SK_OT_CHAR TAG3 = 'e';
static const SK_OT_ULONG TAG = SkOTTableTAG<fontType_MacTrueType>::value;
};
struct fontType_PostScript {
static const SK_OT_CHAR TAG0 = 't';
static const SK_OT_CHAR TAG1 = 'y';
static const SK_OT_CHAR TAG2 = 'p';
static const SK_OT_CHAR TAG3 = '1';
static const SK_OT_ULONG TAG = SkOTTableTAG<fontType_PostScript>::value;
};
struct fontType_OpenTypeCFF {
static const SK_OT_CHAR TAG0 = 'O';
static const SK_OT_CHAR TAG1 = 'T';
static const SK_OT_CHAR TAG2 = 'T';
static const SK_OT_CHAR TAG3 = 'O';
static const SK_OT_ULONG TAG = SkOTTableTAG<fontType_OpenTypeCFF>::value;
};
SK_SFNT_USHORT numTables;
SK_SFNT_USHORT searchRange;
SK_SFNT_USHORT entrySelector;
SK_SFNT_USHORT rangeShift;
struct TableDirectoryEntry {
SK_SFNT_ULONG tag;
SK_SFNT_ULONG checksum;
SK_SFNT_ULONG offset; //From beginning of header.
SK_SFNT_ULONG logicalLength;
}; //tableDirectoryEntries[numTables]
};
#pragma pack(pop)
SK_COMPILE_ASSERT(sizeof(SkSFNTHeader) == 12, sizeof_SkSFNTHeader_not_12);
SK_COMPILE_ASSERT(sizeof(SkSFNTHeader::TableDirectoryEntry) == 16, sizeof_SkSFNTHeader_TableDirectoryEntry_not_16);
#endif
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