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6d9645bb3b
The color LUT for the SMPTE pattern in indexed mode contains 22 entries,
although only 13 are non-unique.
Reduce the size of the color LUT by dropping duplicate entries, so it
can be reused for formats supporting e.g. 16 colors. Rename the
function util_smpte_c8_gamma() to util_smpte_fill_lut(), and its first
parameter size to ncolors, to match their actual use.
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:
- Rename util_smpte_index_gamma() to util_smpte_fill_lut(), and its
first parameter from size to ncolors,
- Move smpte_color_lut[] down,
- Kill FILL_COLOR() macro,
- Add and use EXPAND_COLOR() macro,
v3:
- Add Acked-by,
v2:
- Factor out smpte color LUT.
46 lines
1.7 KiB
C
46 lines
1.7 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_PATTERN_H
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#define UTIL_PATTERN_H
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#include <drm_mode.h>
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enum util_fill_pattern {
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UTIL_PATTERN_TILES,
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UTIL_PATTERN_PLAIN,
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UTIL_PATTERN_SMPTE,
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UTIL_PATTERN_GRADIENT,
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};
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void util_fill_pattern(uint32_t format, enum util_fill_pattern pattern,
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void *planes[3], unsigned int width,
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unsigned int height, unsigned int stride);
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void util_smpte_fill_lut(unsigned int ncolors, struct drm_color_lut *lut);
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enum util_fill_pattern util_pattern_enum(const char *name);
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#endif /* UTIL_PATTERN_H */
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