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