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8134deb31f
Store the number of available colors for color-indexed frame buffer formats in the format_info[] array. This avoids the need of test code for having to use switch statements all the time to obtain the number of colors, or to check if a mode is color-indexed or not. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- v5: - Add Reviewed-by, v4: - No changes, v3: - Add Acked-by, v2: - New.
66 lines
2 KiB
C
66 lines
2 KiB
C
/*
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* Copyright 2008 Tungsten Graphics
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* Jakob Bornecrantz <jakob@tungstengraphics.com>
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* Copyright 2008 Intel Corporation
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* Jesse Barnes <jesse.barnes@intel.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef UTIL_FORMAT_H
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#define UTIL_FORMAT_H
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struct util_color_component {
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unsigned int length;
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unsigned int offset;
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};
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struct util_rgb_info {
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struct util_color_component red;
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struct util_color_component green;
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struct util_color_component blue;
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struct util_color_component alpha;
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};
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enum util_yuv_order {
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YUV_YCbCr = 1,
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YUV_YCrCb = 2,
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YUV_YC = 4,
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YUV_CY = 8,
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};
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struct util_yuv_info {
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enum util_yuv_order order;
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unsigned int xsub;
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unsigned int ysub;
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unsigned int chroma_stride;
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};
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struct util_format_info {
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uint32_t format;
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const char *name;
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unsigned int ncolors;
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const struct util_rgb_info rgb;
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const struct util_yuv_info yuv;
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};
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uint32_t util_format_fourcc(const char *name);
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const struct util_format_info *util_format_info_find(uint32_t format);
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#endif /* UTIL_FORMAT_H */
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