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Side by Side Diff: ui/gfx/color_space.h

Issue 2183953002: Add some actual data to gfx::ColorSpace (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix LAST Created 4 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_GFX_COLOR_SPACE_H_ 5 #ifndef UI_GFX_COLOR_SPACE_H_
6 #define UI_GFX_COLOR_SPACE_H_ 6 #define UI_GFX_COLOR_SPACE_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include "base/macros.h" 10 #include "base/macros.h"
11 #include "build/build_config.h" 11 #include "build/build_config.h"
12 #include "ui/gfx/gfx_export.h" 12 #include "ui/gfx/gfx_export.h"
13 13
14 namespace IPC { 14 namespace IPC {
15 template <class P> 15 template <class P>
16 struct ParamTraits; 16 struct ParamTraits;
17 } // namespace IPC 17 } // namespace IPC
18 18
19 namespace gfx { 19 namespace gfx {
20 20
21 class ICCProfile; 21 class ICCProfile;
22 22
23 // Used to represet a color space for the purpose of color conversion. 23 // Used to represet a color space for the purpose of color conversion.
24 // This is designed to be safe and compact enough to send over IPC 24 // This is designed to be safe and compact enough to send over IPC
25 // between any processes. 25 // between any processes.
26 class GFX_EXPORT ColorSpace { 26 class GFX_EXPORT ColorSpace {
27 public: 27 public:
28 enum class PrimaryID : uint16_t {
29 // The first 0-255 values should match the H264 specification.
30 RESERVED0 = 0,
31 BT709 = 1,
32 UNSPECIFIED = 2,
33 RESERVED = 3,
34 BT470M = 4,
35 BT470BG = 5,
36 SMPTE170M = 6,
37 SMPTE240M = 7,
38 FILM = 8,
39 BT2020 = 9,
40 SMPTEST428_1 = 10,
41 SMPTEST431_2 = 11,
42 SMPTEST432_1 = 12,
43
44 // Chrome-specific values start at 1000.
45 XYZ_D50 = 1000,
46 // TODO(hubbe): We need to store the primaries.
47 CUSTOM = 1001,
48 LAST = CUSTOM
49 };
50
51 enum class TransferID : uint16_t {
52 // The first 0-255 values should match the H264 specification.
53 RESERVED0 = 0,
54 BT709 = 1,
55 UNSPECIFIED = 2,
56 RESERVED = 3,
57 GAMMA22 = 4,
58 GAMMA28 = 5,
59 SMPTE170M = 6,
60 SMPTE240M = 7,
61 LINEAR = 8,
62 LOG = 9,
63 LOG_SQRT = 10,
64 IEC61966_2_4 = 11,
65 BT1361_ECG = 12,
66 IEC61966_2_1 = 13,
67 BT2020_10 = 14,
68 BT2020_12 = 15,
69 SMPTEST2084 = 16,
70 SMPTEST428_1 = 17,
71
72 // Chrome-specific values start at 1000.
73 GAMMA24 = 1000,
74
75 // TODO(hubbe): Need to store an approximation of the gamma function(s).
76 CUSTOM = 1001,
77 LAST = CUSTOM,
78 };
79
80 enum class MatrixID : int16_t {
81 // The first 0-255 values should match the H264 specification.
82 RGB = 0,
83 BT709 = 1,
84 UNSPECIFIED = 2,
85 RESERVED = 3,
86 FCC = 4,
87 BT470BG = 5,
88 SMPTE170M = 6,
89 SMPTE240M = 7,
90 YCOCG = 8,
91 BT2020_NCL = 9,
92 BT2020_CL = 10,
93 YDZDX = 11,
94
95 // Chrome-specific values start at 1000
96 LAST = YDZDX,
97 };
98
99 // The h264 spec declares this as bool, so only the the first two values
100 // correspond to the h264 spec. Chrome-specific values can start at 2.
101 // We use an enum instead of a bool becuase different bit depths may have
102 // different definitions of what "limited" means.
103 enum class RangeID : int8_t {
104 FULL = 0,
105 LIMITED = 1,
106
107 LAST = LIMITED
108 };
109
28 ColorSpace(); 110 ColorSpace();
111 ColorSpace(PrimaryID primaries,
112 TransferID transfer,
113 MatrixID matrix,
114 RangeID full_range);
115
29 static ColorSpace CreateSRGB(); 116 static ColorSpace CreateSRGB();
30 117
31 // TODO: Remove these, and replace with more generic constructors. 118 // TODO: Remove these, and replace with more generic constructors.
32 static ColorSpace CreateJpeg(); 119 static ColorSpace CreateJpeg();
33 static ColorSpace CreateREC601(); 120 static ColorSpace CreateREC601();
34 static ColorSpace CreateREC709(); 121 static ColorSpace CreateREC709();
35 122
36 bool operator==(const ColorSpace& other) const; 123 bool operator==(const ColorSpace& other) const;
37 124
38 private: 125 private:
39 bool valid_ = false; 126 PrimaryID primaries_;
127 TransferID transfer_;
128 MatrixID matrix_;
129 RangeID range_;
130
40 // This is used to look up the ICCProfile from which this ColorSpace was 131 // This is used to look up the ICCProfile from which this ColorSpace was
41 // created, if possible. 132 // created, if possible.
42 uint64_t icc_profile_id_ = 0; 133 uint64_t icc_profile_id_ = 0;
43 134
44 friend class ICCProfile; 135 friend class ICCProfile;
45 friend struct IPC::ParamTraits<gfx::ColorSpace>; 136 friend struct IPC::ParamTraits<gfx::ColorSpace>;
46 }; 137 };
47 138
48 } // namespace gfx 139 } // namespace gfx
49 140
50 #endif // UI_GFX_COLOR_SPACE_H_ 141 #endif // UI_GFX_COLOR_SPACE_H_
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