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Chia-I Wub5a1add2014-08-16 12:46:32 +08001/*
Chia-I Wu44e42362014-09-02 08:32:09 +08002 * XGL
Chia-I Wub5a1add2014-08-16 12:46:32 +08003 *
4 * Copyright (C) 2014 LunarG, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Chia-I Wu <olv@lunarg.com>
26 */
27
Chia-I Wu92096a92014-12-21 23:07:08 +080028#include <string.h> /* for memcpy */
29#include "icd-utils.h"
Chia-I Wub5a1add2014-08-16 12:46:32 +080030#include "icd-format.h"
31
32static const struct icd_format_info {
33 XGL_SIZE size;
Chia-I Wu40ee55b2014-10-08 09:12:58 +080034 XGL_UINT channel_count;
Chia-I Wub5a1add2014-08-16 12:46:32 +080035} icd_format_table[XGL_MAX_CH_FMT + 1] = {
Chia-I Wu40ee55b2014-10-08 09:12:58 +080036 [XGL_CH_FMT_UNDEFINED] = { 0, 0 },
37 [XGL_CH_FMT_R4G4] = { 1, 2 },
38 [XGL_CH_FMT_R4G4B4A4] = { 2, 4 },
39 [XGL_CH_FMT_R5G6B5] = { 2, 3 },
40 [XGL_CH_FMT_B5G6R5] = { 2, 3 },
41 [XGL_CH_FMT_R5G5B5A1] = { 2, 4 },
42 [XGL_CH_FMT_R8] = { 1, 1 },
43 [XGL_CH_FMT_R8G8] = { 2, 2 },
44 [XGL_CH_FMT_R8G8B8A8] = { 4, 4 },
45 [XGL_CH_FMT_B8G8R8A8] = { 4, 4 },
46 [XGL_CH_FMT_R10G11B11] = { 4, 3 },
47 [XGL_CH_FMT_R11G11B10] = { 4, 3 },
48 [XGL_CH_FMT_R10G10B10A2] = { 4, 4 },
49 [XGL_CH_FMT_R16] = { 2, 1 },
50 [XGL_CH_FMT_R16G16] = { 4, 2 },
51 [XGL_CH_FMT_R16G16B16A16] = { 8, 4 },
52 [XGL_CH_FMT_R32] = { 4, 1 },
53 [XGL_CH_FMT_R32G32] = { 8, 2 },
54 [XGL_CH_FMT_R32G32B32] = { 12, 3 },
55 [XGL_CH_FMT_R32G32B32A32] = { 16, 4 },
56 [XGL_CH_FMT_R16G8] = { 3, 2 },
57 [XGL_CH_FMT_R32G8] = { 5, 2 },
58 [XGL_CH_FMT_R9G9B9E5] = { 4, 3 },
59 [XGL_CH_FMT_BC1] = { 8, 4 },
60 [XGL_CH_FMT_BC2] = { 16, 4 },
61 [XGL_CH_FMT_BC3] = { 16, 4 },
62 [XGL_CH_FMT_BC4] = { 8, 4 },
63 [XGL_CH_FMT_BC5] = { 16, 4 },
64 [XGL_CH_FMT_BC6U] = { 16, 4 },
65 [XGL_CH_FMT_BC6S] = { 16, 4 },
66 [XGL_CH_FMT_BC7] = { 16, 4 },
Chia-I Wub5a1add2014-08-16 12:46:32 +080067};
68
69unsigned int icd_format_get_size(XGL_FORMAT format)
70{
71 return icd_format_table[format.channelFormat].size;
72}
Chia-I Wu40ee55b2014-10-08 09:12:58 +080073
74unsigned int icd_format_get_channel_count(XGL_FORMAT format)
75{
76 return icd_format_table[format.channelFormat].channel_count;
77}
Chia-I Wu92096a92014-12-21 23:07:08 +080078
79/**
80 * Convert a raw RGBA color to a raw value. \p value must have at least
81 * icd_format_get_size(format) bytes.
82 */
83void icd_format_get_raw_value(XGL_FORMAT format,
84 const XGL_UINT32 color[4],
85 void *value)
86{
87 /* assume little-endian */
88 switch (format.channelFormat) {
89 case XGL_CH_FMT_UNDEFINED:
90 break;
91 case XGL_CH_FMT_R4G4:
92 ((uint8_t *) value)[0] = (color[0] & 0xf) << 0 |
93 (color[1] & 0xf) << 4;
94 break;
95 case XGL_CH_FMT_R4G4B4A4:
96 ((uint16_t *) value)[0] = (color[0] & 0xf) << 0 |
97 (color[1] & 0xf) << 4 |
98 (color[2] & 0xf) << 8 |
99 (color[3] & 0xf) << 12;
100 break;
101 case XGL_CH_FMT_R5G6B5:
102 ((uint16_t *) value)[0] = (color[0] & 0x1f) << 0 |
103 (color[1] & 0x3f) << 5 |
104 (color[2] & 0x1f) << 11;
105 break;
106 case XGL_CH_FMT_B5G6R5:
107 ((uint16_t *) value)[0] = (color[2] & 0x1f) << 0 |
108 (color[1] & 0x3f) << 5 |
109 (color[0] & 0x1f) << 11;
110 break;
111 case XGL_CH_FMT_R5G5B5A1:
112 ((uint16_t *) value)[0] = (color[0] & 0x1f) << 0 |
113 (color[1] & 0x1f) << 5 |
114 (color[2] & 0x1f) << 10 |
115 (color[3] & 0x1) << 15;
116 break;
117 case XGL_CH_FMT_R8:
118 ((uint8_t *) value)[0] = (uint8_t) color[0];
119 break;
120 case XGL_CH_FMT_R8G8:
121 ((uint8_t *) value)[0] = (uint8_t) color[0];
122 ((uint8_t *) value)[1] = (uint8_t) color[1];
123 break;
124 case XGL_CH_FMT_R8G8B8A8:
125 ((uint8_t *) value)[0] = (uint8_t) color[0];
126 ((uint8_t *) value)[1] = (uint8_t) color[1];
127 ((uint8_t *) value)[2] = (uint8_t) color[2];
128 ((uint8_t *) value)[3] = (uint8_t) color[3];
129 break;
130 case XGL_CH_FMT_B8G8R8A8:
131 ((uint8_t *) value)[0] = (uint8_t) color[2];
132 ((uint8_t *) value)[1] = (uint8_t) color[1];
133 ((uint8_t *) value)[2] = (uint8_t) color[0];
134 ((uint8_t *) value)[3] = (uint8_t) color[3];
135 break;
136 case XGL_CH_FMT_R10G11B11:
137 ((uint32_t *) value)[0] = (color[0] & 0x3ff) << 0 |
138 (color[1] & 0x7ff) << 10 |
139 (color[2] & 0x7ff) << 21;
140 break;
141 case XGL_CH_FMT_R11G11B10:
142 ((uint32_t *) value)[0] = (color[0] & 0x7ff) << 0 |
143 (color[1] & 0x7ff) << 11 |
144 (color[2] & 0x3ff) << 22;
145 break;
146 case XGL_CH_FMT_R10G10B10A2:
147 ((uint32_t *) value)[0] = (color[0] & 0x3ff) << 0 |
148 (color[1] & 0x3ff) << 10 |
149 (color[2] & 0x3ff) << 20 |
150 (color[3] & 0x3) << 30;
151 break;
152 case XGL_CH_FMT_R16:
153 ((uint16_t *) value)[0] = (uint16_t) color[0];
154 break;
155 case XGL_CH_FMT_R16G16:
156 ((uint16_t *) value)[0] = (uint16_t) color[0];
157 ((uint16_t *) value)[1] = (uint16_t) color[1];
158 break;
159 case XGL_CH_FMT_R16G16B16A16:
160 ((uint16_t *) value)[0] = (uint16_t) color[0];
161 ((uint16_t *) value)[1] = (uint16_t) color[1];
162 ((uint16_t *) value)[2] = (uint16_t) color[2];
163 ((uint16_t *) value)[3] = (uint16_t) color[3];
164 break;
165 case XGL_CH_FMT_R32:
166 ((uint32_t *) value)[0] = color[0];
167 break;
168 case XGL_CH_FMT_R32G32:
169 ((uint32_t *) value)[0] = color[0];
170 ((uint32_t *) value)[1] = color[1];
171 break;
172 case XGL_CH_FMT_R32G32B32:
173 ((uint32_t *) value)[0] = color[0];
174 ((uint32_t *) value)[1] = color[1];
175 ((uint32_t *) value)[2] = color[2];
176 break;
177 case XGL_CH_FMT_R32G32B32A32:
178 ((uint32_t *) value)[0] = color[0];
179 ((uint32_t *) value)[1] = color[1];
180 ((uint32_t *) value)[2] = color[2];
181 ((uint32_t *) value)[3] = color[3];
182 break;
183 case XGL_CH_FMT_R16G8:
184 ((uint16_t *) value)[0] = (uint16_t) color[0];
185 ((char *) value)[2] = (uint8_t) color[1];
186 break;
187 case XGL_CH_FMT_R32G8:
188 ((uint32_t *) value)[0] = (uint32_t) color[0];
189 ((char *) value)[4] = (uint8_t) color[1];
190 break;
191 case XGL_CH_FMT_R9G9B9E5:
192 ((uint32_t *) value)[0] = (color[0] & 0x1ff) << 0 |
193 (color[1] & 0x1ff) << 9 |
194 (color[2] & 0x1ff) << 18 |
195 (color[3] & 0x1f) << 27;
196 break;
197 case XGL_CH_FMT_BC1:
198 case XGL_CH_FMT_BC4:
199 memcpy(value, color, 8);
200 break;
201 case XGL_CH_FMT_BC2:
202 case XGL_CH_FMT_BC3:
203 case XGL_CH_FMT_BC5:
204 case XGL_CH_FMT_BC6U:
205 case XGL_CH_FMT_BC6S:
206 case XGL_CH_FMT_BC7:
207 memcpy(value, color, 16);
208 break;
209 default:
210 assert(!"unknown format");
211 break;
212 }
213}