/*
* 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 "src/base/SkEndian.h"
#include "src/sfnt/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)
static_assert(sizeof (SkSFNTHeader) == 12, "sizeof_SkSFNTHeader_not_12" );
static_assert(sizeof (SkSFNTHeader::TableDirectoryEntry) == 16, "sizeof_SkSFNTHeader_TableDirectoryEntry_not_16" );
#endif
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