1/*
2 * Copyright 2016 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 SkICCPriv_DEFINED
9#define SkICCPriv_DEFINED
10
11#include "include/core/SkColorSpace.h"
12#include "include/core/SkTypes.h"
13
14// This is equal to the header size according to the ICC specification (128)
15// plus the size of the tag count (4). We include the tag count since we
16// always require it to be present anyway.
17static constexpr size_t kICCHeaderSize = 132;
18
19// Contains a signature (4), offset (4), and size (4).
20static constexpr size_t kICCTagTableEntrySize = 12;
21
22static constexpr uint32_t kRGB_ColorSpace = SkSetFourByteTag('R', 'G', 'B', ' ');
23static constexpr uint32_t kCMYK_ColorSpace = SkSetFourByteTag('C', 'M', 'Y', 'K');
24static constexpr uint32_t kGray_ColorSpace = SkSetFourByteTag('G', 'R', 'A', 'Y');
25static constexpr uint32_t kDisplay_Profile = SkSetFourByteTag('m', 'n', 't', 'r');
26static constexpr uint32_t kInput_Profile = SkSetFourByteTag('s', 'c', 'n', 'r');
27static constexpr uint32_t kOutput_Profile = SkSetFourByteTag('p', 'r', 't', 'r');
28static constexpr uint32_t kColorSpace_Profile = SkSetFourByteTag('s', 'p', 'a', 'c');
29static constexpr uint32_t kXYZ_PCSSpace = SkSetFourByteTag('X', 'Y', 'Z', ' ');
30static constexpr uint32_t kLAB_PCSSpace = SkSetFourByteTag('L', 'a', 'b', ' ');
31static constexpr uint32_t kACSP_Signature = SkSetFourByteTag('a', 'c', 's', 'p');
32
33static constexpr uint32_t kTAG_rXYZ = SkSetFourByteTag('r', 'X', 'Y', 'Z');
34static constexpr uint32_t kTAG_gXYZ = SkSetFourByteTag('g', 'X', 'Y', 'Z');
35static constexpr uint32_t kTAG_bXYZ = SkSetFourByteTag('b', 'X', 'Y', 'Z');
36static constexpr uint32_t kTAG_rTRC = SkSetFourByteTag('r', 'T', 'R', 'C');
37static constexpr uint32_t kTAG_gTRC = SkSetFourByteTag('g', 'T', 'R', 'C');
38static constexpr uint32_t kTAG_bTRC = SkSetFourByteTag('b', 'T', 'R', 'C');
39static constexpr uint32_t kTAG_kTRC = SkSetFourByteTag('k', 'T', 'R', 'C');
40static constexpr uint32_t kTAG_A2B0 = SkSetFourByteTag('A', '2', 'B', '0');
41
42static constexpr uint32_t kTAG_CurveType = SkSetFourByteTag('c', 'u', 'r', 'v');
43static constexpr uint32_t kTAG_ParaCurveType = SkSetFourByteTag('p', 'a', 'r', 'a');
44static constexpr uint32_t kTAG_TextType = SkSetFourByteTag('m', 'l', 'u', 'c');
45
46enum ParaCurveType {
47 kExponential_ParaCurveType = 0,
48 kGAB_ParaCurveType = 1,
49 kGABC_ParaCurveType = 2,
50 kGABDE_ParaCurveType = 3,
51 kGABCDEF_ParaCurveType = 4,
52};
53
54#endif // SkICCPriv_DEFINED
55