1 /*
2 * Copyright (c) 2019 Kevin Townsend (KTOWN)
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <errno.h>
8 #include <zsl/colorimetry.h>
9
10 /**
11 * @brief 3x3 XYZ to RGB color space correlation matrices.
12 */
13 static struct zsl_mtx zsl_clr_rgb_ccm_list[] = {
14 /** Linear sRGB with D65 white point. */
15 { .sz_rows = 3,
16 .sz_cols = 3,
17 .data = (zsl_real_t[]) {
18 3.2404542, -1.5371385, -0.4985314,
19 -0.9692660, 1.8760108, 0.0415560,
20 0.0556434, -0.2040259, 1.0572252
21 } },
22
23 /** Linear sRGB with D50 white point. */
24 { .sz_rows = 3,
25 .sz_cols = 3,
26 .data = (zsl_real_t[]) {
27 3.1338561, -1.6168667, -0.4906146,
28 -0.9787684, 1.9161415, 0.0334540,
29 0.0719453, -0.2289914, 1.4052427
30 } },
31
32 /** AdobeRGB98. */
33 { .sz_rows = 3,
34 .sz_cols = 3,
35 .data = (zsl_real_t[]) {
36 2.0413690, -0.5649464, -0.3446944,
37 -0.9692660, 1.8760108, 0.0415560,
38 0.0134474, -0.1183897, 1.0154096
39 } },
40
41 /** Sony S-Gamut3.cine D65. */
42 { .sz_rows = 3,
43 .sz_cols = 3,
44 .data = (zsl_real_t[]) {
45 1.84664243, -0.52594723, -0.21052964,
46 -0.44417115, 1.25949363, 0.14940599,
47 0.04086348, 0.01564397, 0.86837846
48 } },
49
50 /** NTSC. */
51 { .sz_rows = 3,
52 .sz_cols = 3,
53 .data = (zsl_real_t[]) {
54 1.91008143, -0.53247794, -0.28822201,
55 -0.98463135, 1.99910001, -0.02830719,
56 0.05830945, -0.11838584, 0.89761208
57 } },
58
59 /** PAL/SECAM. */
60 { .sz_rows = 3,
61 .sz_cols = 3,
62 .data = (zsl_real_t[]) {
63 3.06338864, -1.39340271, -0.47582802,
64 -0.96922425, 1.87592998, 0.04155423,
65 0.06787259, -0.2288382, 1.06927151
66 } },
67
68 /* Source: Colour python library. */
69 /** ITU-R BT.709. */
70 { .sz_rows = 3,
71 .sz_cols = 3,
72 .data = (zsl_real_t[]) {
73 3.24100326, -1.53739899, -0.49861587,
74 -0.96922426, 1.87592999, 0.04155422,
75 0.05563942, -0.2040112, 1.05714897
76 } },
77
78 /* Source: Colour python library. */
79 /** ITU-R BT.2020. */
80 { .sz_rows = 3,
81 .sz_cols = 3,
82 .data = (zsl_real_t[]) {
83 1.71666343, -0.35567332, -0.25336809,
84 -0.66667384, 1.61645574, 0.0157683,
85 0.01764248, -0.04277698, 0.94224328
86 } },
87
88 /* Source: Colour python library. */
89 /** ACES Primaries #0 (AP0). */
90 { .sz_rows = 3,
91 .sz_cols = 3,
92 .data = (zsl_real_t[]) {
93 1.04981102e+00, 0.00000000e+00, -9.74845410e-05,
94 -4.95903023e-01, 1.37331305e+00, 9.82400365e-02,
95 0.00000000e+00, 0.00000000e+00, 9.91252022e-01
96 } },
97
98 /* Source: Colour python library. */
99 /** ACES Primaries #1 (AP1). */
100 { .sz_rows = 3,
101 .sz_cols = 3,
102 .data = (zsl_real_t[]) {
103 1.64102338, -0.32480329, -0.2364247,
104 -0.66366286, 1.61533159, 0.01675635,
105 0.01172189, -0.00828444, 0.98839486
106 } },
107
108 /* Source: Colour python library. */
109 /** DCI-P3. */
110 { .sz_rows = 3,
111 .sz_cols = 3,
112 .data = (zsl_real_t[]) {
113 2.72539403, -1.01800301, -0.4401632,
114 -0.79516803, 1.68973205, 0.02264719,
115 0.04124189, -0.08763902, 1.10092938
116 } },
117
118 /* Source: Colour python library. */
119 /** DCI-P3+. */
120 { .sz_rows = 3,
121 .sz_cols = 3,
122 .data = (zsl_real_t[]) {
123 1.99040349, -0.56139586, -0.22966194,
124 -0.45849279, 1.262346, 0.15487549,
125 0.01563207, -0.00440904, 1.03772867
126 } },
127
128 /* Source: Colour python library. */
129 /** CIE linear RGB. */
130 { .sz_rows = 3,
131 .sz_cols = 3,
132 .data = (zsl_real_t[]) {
133 2.37067401, -0.9000403, -0.47063371,
134 -0.51388479, 1.42530348, 0.0885813,
135 0.00529816, -0.0146949, 1.00939674
136 } },
137 };
138
139 void
zsl_clr_rgbccm_get(enum zsl_clr_rgb_ccm ccm,struct zsl_mtx ** mtx)140 zsl_clr_rgbccm_get(enum zsl_clr_rgb_ccm ccm, struct zsl_mtx **mtx)
141 {
142 *mtx = &zsl_clr_rgb_ccm_list[ccm];
143 }
144
