format.h revision 3f012e29 
1/*
2 * Copyright 2008 Tungsten Graphics
3 *   Jakob Bornecrantz <jakob@tungstengraphics.com>
4 * Copyright 2008 Intel Corporation
5 *   Jesse Barnes <jesse.barnes@intel.com>
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 * IN THE SOFTWARE.
24 */
25
26#ifndef UTIL_FORMAT_H
27#define UTIL_FORMAT_H
28
29struct util_color_component {
30	unsigned int length;
31	unsigned int offset;
32};
33
34struct util_rgb_info {
35	struct util_color_component red;
36	struct util_color_component green;
37	struct util_color_component blue;
38	struct util_color_component alpha;
39};
40
41enum util_yuv_order {
42	YUV_YCbCr = 1,
43	YUV_YCrCb = 2,
44	YUV_YC = 4,
45	YUV_CY = 8,
46};
47
48struct util_yuv_info {
49	enum util_yuv_order order;
50	unsigned int xsub;
51	unsigned int ysub;
52	unsigned int chroma_stride;
53};
54
55struct util_format_info {
56	uint32_t format;
57	const char *name;
58	const struct util_rgb_info rgb;
59	const struct util_yuv_info yuv;
60};
61
62uint32_t util_format_fourcc(const char *name);
63const struct util_format_info *util_format_info_find(uint32_t format);
64
65#endif /* UTIL_FORMAT_H */
66