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gerrit-public.fairphone.software / platform / external / skia / dba3e64ab9bbeac5a8b4fed6d03665cc7a5cf514 / . / src / sfnt / SkOTTable_head.h
blob: 3d2c0f111338207ef9d908929ca593aab2701f16 [file] [log] [blame]
bungeman@google.comf8d1aee2012-02-02 19:15:21 +0000[diff] [blame]1/*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkOTTable_head_DEFINED
9#define SkOTTable_head_DEFINED
10
11#include "SkEndian.h"
12#include "SkOTTableTypes.h"
13#include "SkTypedEnum.h"
14
15#pragma pack(push, 1)
16
17struct SkOTTableHead {
bungeman@google.comec95a4a2012-06-25 14:26:48 +0000[diff] [blame]18 static const SK_OT_CHAR TAG0 = 'h';
19 static const SK_OT_CHAR TAG1 = 'e';
20 static const SK_OT_CHAR TAG2 = 'a';
21 static const SK_OT_CHAR TAG3 = 'd';
22 static const SK_OT_ULONG TAG = SkOTTableTAG<SkOTTableHead>::value;
23
bungeman@google.comf8d1aee2012-02-02 19:15:21 +0000[diff] [blame]24 SK_OT_Fixed version;
25 static const SK_OT_Fixed version1 = SkTEndian_SwapBE32(0x00010000);
26 SK_OT_Fixed fontRevision;
bungeman@google.com8ec99562012-02-07 21:30:21 +0000[diff] [blame]27 static const uint32_t fontChecksum = 0xB1B0AFBA; //checksum of all TT fonts
28 SK_OT_ULONG checksumAdjustment;
bungeman@google.comf8d1aee2012-02-02 19:15:21 +0000[diff] [blame]29 SK_OT_ULONG magicNumber;
30 static const SK_OT_ULONG magicNumberConst = SkTEndian_SwapBE32(0x5F0F3CF5);
31 union Flags {
32 struct Field {
33 //8-15
34 SK_OT_BYTE_BITFIELD(
35 GXMetamorphosis_Apple,
36 HasStrongRTL_Apple,
37 HasIndicStyleRearrangement,
38 AgfaMicroTypeExpressProcessed,
39 FontConverted,
40 DesignedForClearType,
41 LastResort,
42 Reserved15)
43 //0-7
44 SK_OT_BYTE_BITFIELD(
45 BaselineAtY0,
46 LeftSidebearingAtX0,
47 InstructionsDependOnPointSize,
48 IntegerScaling,
49 InstructionsAlterAdvanceWidth,
50 VerticalCenteredGlyphs_Apple,
51 Reserved06,
52 RequiresLayout_Apple)
53 } field;
54 struct Raw {
55 static const SK_OT_USHORT BaselineAtY0Mask = SkTEndian_SwapBE16(1 << 0);
56 static const SK_OT_USHORT LeftSidebearingAtX0Mask = SkTEndian_SwapBE16(1 << 1);
57 static const SK_OT_USHORT InstructionsDependOnPointSizeMask = SkTEndian_SwapBE16(1 << 2);
58 static const SK_OT_USHORT IntegerScalingMask = SkTEndian_SwapBE16(1 << 3);
59 static const SK_OT_USHORT InstructionsAlterAdvanceWidthMask = SkTEndian_SwapBE16(1 << 4);
60 static const SK_OT_USHORT VerticalCenteredGlyphs_AppleMask = SkTEndian_SwapBE16(1 << 5);
61 //Reserved
62 static const SK_OT_USHORT RequiresLayout_AppleMask = SkTEndian_SwapBE16(1 << 7);
63
64 static const SK_OT_USHORT GXMetamorphosis_AppleMask = SkTEndian_SwapBE16(1 << 8);
65 static const SK_OT_USHORT HasStrongRTL_AppleMask = SkTEndian_SwapBE16(1 << 9);
66 static const SK_OT_USHORT HasIndicStyleRearrangementMask = SkTEndian_SwapBE16(1 << 10);
67 static const SK_OT_USHORT AgfaMicroTypeExpressProcessedMask = SkTEndian_SwapBE16(1 << 11);
68 static const SK_OT_USHORT FontConvertedMask = SkTEndian_SwapBE16(1 << 12);
69 static const SK_OT_USHORT DesignedForClearTypeMask = SkTEndian_SwapBE16(1 << 13);
70 static const SK_OT_USHORT LastResortMask = SkTEndian_SwapBE16(1 << 14);
71 //Reserved
72 SK_OT_USHORT value;
73 } raw;
74 } flags;
75 SK_OT_USHORT unitsPerEm;
76 SK_OT_LONGDATETIME created;
77 SK_OT_LONGDATETIME modified;
78 SK_OT_SHORT xMin;
79 SK_OT_SHORT yMin;
80 SK_OT_SHORT xMax;
81 SK_OT_SHORT yMax;
82 union MacStyle {
83 struct Field {
84 //8-15
85 SK_OT_BYTE_BITFIELD(
86 Reserved08,
87 Reserved09,
88 Reserved10,
89 Reserved11,
90 Reserved12,
91 Reserved13,
92 Reserved14,
93 Reserved15)
94 //0-7
95 SK_OT_BYTE_BITFIELD(
96 Bold,
97 Italic,
98 Underline,
99 Outline,
100 Shadow,
101 Condensed,
102 Extended,
103 Reserved07)
104 } field;
105 struct Raw {
106 static const SK_OT_USHORT BoldMask = SkTEndian_SwapBE16(1);
107 static const SK_OT_USHORT ItalicMask = SkTEndian_SwapBE16(1 << 1);
108 static const SK_OT_USHORT UnderlineMask = SkTEndian_SwapBE16(1 << 2);
109 static const SK_OT_USHORT OutlineMask = SkTEndian_SwapBE16(1 << 3);
110 static const SK_OT_USHORT ShadowMask = SkTEndian_SwapBE16(1 << 4);
111 static const SK_OT_USHORT CondensedMask = SkTEndian_SwapBE16(1 << 5);
112 static const SK_OT_USHORT ExtendedMask = SkTEndian_SwapBE16(1 << 6);
113
114 SK_OT_USHORT value;
115 } raw;
116 } macStyle;
117 SK_OT_USHORT lowestRecPPEM;
118 struct FontDirectionHint {
119 SK_TYPED_ENUM(Value, SK_OT_SHORT,
120 ((FullyMixedDirectionalGlyphs, SkTEndian_SwapBE16(0)))
121 ((OnlyStronglyLTR, SkTEndian_SwapBE16(1)))
122 ((StronglyLTR, SkTEndian_SwapBE16(2)))
george@mozilla.com7c207e72012-08-27 19:31:10 +0000[diff] [blame]123 ((OnlyStronglyRTL, static_cast<SK_OT_SHORT>(SkTEndian_SwapBE16((uint16_t)-1))))
124 ((StronglyRTL, static_cast<SK_OT_SHORT>(SkTEndian_SwapBE16((uint16_t)-2))))
bungeman@google.comf8d1aee2012-02-02 19:15:21 +0000[diff] [blame]125 SK_SEQ_END,
126 (value)SK_SEQ_END)
127 } fontDirectionHint;
128 struct IndexToLocFormat {
129 SK_TYPED_ENUM(Value, SK_OT_SHORT,
130 ((ShortOffsets, SkTEndian_SwapBE16(0)))
131 ((LongOffsets, SkTEndian_SwapBE16(1)))
132 SK_SEQ_END,
133 (value)SK_SEQ_END)
134 } indexToLocFormat;
135 struct GlyphDataFormat {
136 SK_TYPED_ENUM(Value, SK_OT_SHORT,
137 ((CurrentFormat, SkTEndian_SwapBE16(0)))
138 SK_SEQ_END,
139 (value)SK_SEQ_END)
140 } glyphDataFormat;
141};
142
143#pragma pack(pop)
144
145
146#include <stddef.h>
147SK_COMPILE_ASSERT(offsetof(SkOTTableHead, glyphDataFormat) == 52, SkOTTableHead_glyphDataFormat_not_at_52);
148SK_COMPILE_ASSERT(sizeof(SkOTTableHead) == 54, sizeof_SkOTTableHead_not_54);
149
150#endif