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      1 /*
      2  * Copyright 2008 Tungsten Graphics
      3  *   Jakob Bornecrantz <jakob (at) tungstengraphics.com>
      4  * Copyright 2008 Intel Corporation
      5  *   Jesse Barnes <jesse.barnes (at) 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 
     29 struct util_color_component {
     30 	unsigned int length;
     31 	unsigned int offset;
     32 };
     33 
     34 struct 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 
     41 enum util_yuv_order {
     42 	YUV_YCbCr = 1,
     43 	YUV_YCrCb = 2,
     44 	YUV_YC = 4,
     45 	YUV_CY = 8,
     46 };
     47 
     48 struct util_yuv_info {
     49 	enum util_yuv_order order;
     50 	unsigned int xsub;
     51 	unsigned int ysub;
     52 	unsigned int chroma_stride;
     53 };
     54 
     55 struct 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 
     62 uint32_t util_format_fourcc(const char *name);
     63 const struct util_format_info *util_format_info_find(uint32_t format);
     64 
     65 #endif /* UTIL_FORMAT_H */
     66