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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 Wuc581bd52015-01-18 14:51:02 +080067 [XGL_CH_FMT_R8G8B8] = { 3, 3 },
68 [XGL_CH_FMT_R16G16B16] = { 6, 3 },
69 [XGL_CH_FMT_B10G10R10A2] = { 4, 4 },
70 [XGL_CH_FMT_R64] = { 8, 1 },
71 [XGL_CH_FMT_R64G64] = { 16, 2 },
72 [XGL_CH_FMT_R64G64B64] = { 24, 3 },
73 [XGL_CH_FMT_R64G64B64A64] = { 32, 4 },
Chia-I Wub5a1add2014-08-16 12:46:32 +080074};
75
Chia-I Wu54ed0792014-12-27 14:14:50 +080076size_t icd_format_get_size(XGL_FORMAT format)
Chia-I Wub5a1add2014-08-16 12:46:32 +080077{
78 return icd_format_table[format.channelFormat].size;
79}
Chia-I Wu40ee55b2014-10-08 09:12:58 +080080
81unsigned int icd_format_get_channel_count(XGL_FORMAT format)
82{
83 return icd_format_table[format.channelFormat].channel_count;
84}
Chia-I Wu92096a92014-12-21 23:07:08 +080085
86/**
87 * Convert a raw RGBA color to a raw value. \p value must have at least
88 * icd_format_get_size(format) bytes.
89 */
90void icd_format_get_raw_value(XGL_FORMAT format,
91 const XGL_UINT32 color[4],
92 void *value)
93{
94 /* assume little-endian */
95 switch (format.channelFormat) {
96 case XGL_CH_FMT_UNDEFINED:
97 break;
98 case XGL_CH_FMT_R4G4:
99 ((uint8_t *) value)[0] = (color[0] & 0xf) << 0 |
100 (color[1] & 0xf) << 4;
101 break;
102 case XGL_CH_FMT_R4G4B4A4:
103 ((uint16_t *) value)[0] = (color[0] & 0xf) << 0 |
104 (color[1] & 0xf) << 4 |
105 (color[2] & 0xf) << 8 |
106 (color[3] & 0xf) << 12;
107 break;
108 case XGL_CH_FMT_R5G6B5:
109 ((uint16_t *) value)[0] = (color[0] & 0x1f) << 0 |
110 (color[1] & 0x3f) << 5 |
111 (color[2] & 0x1f) << 11;
112 break;
113 case XGL_CH_FMT_B5G6R5:
114 ((uint16_t *) value)[0] = (color[2] & 0x1f) << 0 |
115 (color[1] & 0x3f) << 5 |
116 (color[0] & 0x1f) << 11;
117 break;
118 case XGL_CH_FMT_R5G5B5A1:
119 ((uint16_t *) value)[0] = (color[0] & 0x1f) << 0 |
120 (color[1] & 0x1f) << 5 |
121 (color[2] & 0x1f) << 10 |
122 (color[3] & 0x1) << 15;
123 break;
124 case XGL_CH_FMT_R8:
125 ((uint8_t *) value)[0] = (uint8_t) color[0];
126 break;
127 case XGL_CH_FMT_R8G8:
128 ((uint8_t *) value)[0] = (uint8_t) color[0];
129 ((uint8_t *) value)[1] = (uint8_t) color[1];
130 break;
131 case XGL_CH_FMT_R8G8B8A8:
132 ((uint8_t *) value)[0] = (uint8_t) color[0];
133 ((uint8_t *) value)[1] = (uint8_t) color[1];
134 ((uint8_t *) value)[2] = (uint8_t) color[2];
135 ((uint8_t *) value)[3] = (uint8_t) color[3];
136 break;
137 case XGL_CH_FMT_B8G8R8A8:
138 ((uint8_t *) value)[0] = (uint8_t) color[2];
139 ((uint8_t *) value)[1] = (uint8_t) color[1];
140 ((uint8_t *) value)[2] = (uint8_t) color[0];
141 ((uint8_t *) value)[3] = (uint8_t) color[3];
142 break;
143 case XGL_CH_FMT_R10G11B11:
144 ((uint32_t *) value)[0] = (color[0] & 0x3ff) << 0 |
145 (color[1] & 0x7ff) << 10 |
146 (color[2] & 0x7ff) << 21;
147 break;
148 case XGL_CH_FMT_R11G11B10:
149 ((uint32_t *) value)[0] = (color[0] & 0x7ff) << 0 |
150 (color[1] & 0x7ff) << 11 |
151 (color[2] & 0x3ff) << 22;
152 break;
153 case XGL_CH_FMT_R10G10B10A2:
154 ((uint32_t *) value)[0] = (color[0] & 0x3ff) << 0 |
155 (color[1] & 0x3ff) << 10 |
156 (color[2] & 0x3ff) << 20 |
157 (color[3] & 0x3) << 30;
158 break;
159 case XGL_CH_FMT_R16:
160 ((uint16_t *) value)[0] = (uint16_t) color[0];
161 break;
162 case XGL_CH_FMT_R16G16:
163 ((uint16_t *) value)[0] = (uint16_t) color[0];
164 ((uint16_t *) value)[1] = (uint16_t) color[1];
165 break;
166 case XGL_CH_FMT_R16G16B16A16:
167 ((uint16_t *) value)[0] = (uint16_t) color[0];
168 ((uint16_t *) value)[1] = (uint16_t) color[1];
169 ((uint16_t *) value)[2] = (uint16_t) color[2];
170 ((uint16_t *) value)[3] = (uint16_t) color[3];
171 break;
172 case XGL_CH_FMT_R32:
173 ((uint32_t *) value)[0] = color[0];
174 break;
175 case XGL_CH_FMT_R32G32:
176 ((uint32_t *) value)[0] = color[0];
177 ((uint32_t *) value)[1] = color[1];
178 break;
179 case XGL_CH_FMT_R32G32B32:
180 ((uint32_t *) value)[0] = color[0];
181 ((uint32_t *) value)[1] = color[1];
182 ((uint32_t *) value)[2] = color[2];
183 break;
184 case XGL_CH_FMT_R32G32B32A32:
185 ((uint32_t *) value)[0] = color[0];
186 ((uint32_t *) value)[1] = color[1];
187 ((uint32_t *) value)[2] = color[2];
188 ((uint32_t *) value)[3] = color[3];
189 break;
190 case XGL_CH_FMT_R16G8:
191 ((uint16_t *) value)[0] = (uint16_t) color[0];
192 ((char *) value)[2] = (uint8_t) color[1];
193 break;
194 case XGL_CH_FMT_R32G8:
195 ((uint32_t *) value)[0] = (uint32_t) color[0];
196 ((char *) value)[4] = (uint8_t) color[1];
197 break;
198 case XGL_CH_FMT_R9G9B9E5:
199 ((uint32_t *) value)[0] = (color[0] & 0x1ff) << 0 |
200 (color[1] & 0x1ff) << 9 |
201 (color[2] & 0x1ff) << 18 |
202 (color[3] & 0x1f) << 27;
203 break;
204 case XGL_CH_FMT_BC1:
205 case XGL_CH_FMT_BC4:
206 memcpy(value, color, 8);
207 break;
208 case XGL_CH_FMT_BC2:
209 case XGL_CH_FMT_BC3:
210 case XGL_CH_FMT_BC5:
211 case XGL_CH_FMT_BC6U:
212 case XGL_CH_FMT_BC6S:
213 case XGL_CH_FMT_BC7:
214 memcpy(value, color, 16);
215 break;
Chia-I Wuc581bd52015-01-18 14:51:02 +0800216 case XGL_CH_FMT_R8G8B8:
217 ((uint8_t *) value)[0] = (uint8_t) color[0];
218 ((uint8_t *) value)[1] = (uint8_t) color[1];
219 ((uint8_t *) value)[2] = (uint8_t) color[2];
220 break;
221 case XGL_CH_FMT_R16G16B16:
222 ((uint16_t *) value)[0] = (uint16_t) color[0];
223 ((uint16_t *) value)[1] = (uint16_t) color[1];
224 ((uint16_t *) value)[2] = (uint16_t) color[2];
225 break;
226 case XGL_CH_FMT_B10G10R10A2:
227 ((uint32_t *) value)[0] = (color[2] & 0x3ff) << 0 |
228 (color[1] & 0x3ff) << 10 |
229 (color[0] & 0x3ff) << 20 |
230 (color[3] & 0x3) << 30;
231 break;
232 case XGL_CH_FMT_R64:
233 /* higher 32 bits always 0 */
234 ((uint64_t *) value)[0] = color[0];
235 break;
236 case XGL_CH_FMT_R64G64:
237 ((uint64_t *) value)[0] = color[0];
238 ((uint64_t *) value)[1] = color[1];
239 break;
240 case XGL_CH_FMT_R64G64B64:
241 ((uint64_t *) value)[0] = color[0];
242 ((uint64_t *) value)[1] = color[1];
243 ((uint64_t *) value)[2] = color[2];
244 break;
245 case XGL_CH_FMT_R64G64B64A64:
246 ((uint64_t *) value)[0] = color[0];
247 ((uint64_t *) value)[1] = color[1];
248 ((uint64_t *) value)[2] = color[2];
249 ((uint64_t *) value)[3] = color[3];
250 break;
Chia-I Wu92096a92014-12-21 23:07:08 +0800251 default:
252 assert(!"unknown format");
253 break;
254 }
255}