61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2014, 2015.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation, either version 3 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>.
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pixel.h
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Pixel utilities.
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*******************************************************************************/
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#ifndef PIXEL_H
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#define PIXEL_H
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#include <stdint.h>
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// TODO: This isn't the only pixel format in the world!
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union color_rgba8
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{
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struct
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{
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uint8_t b;
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uint8_t g;
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uint8_t r;
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uint8_t a;
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};
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uint32_t value;
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};
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__attribute__((used))
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static inline uint32_t make_color_a(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
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{
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union color_rgba8 color;
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color.r = r;
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color.g = g;
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color.b = b;
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color.a = a;
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return color.value;
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}
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__attribute__((used))
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static inline uint32_t make_color(uint8_t r, uint8_t g, uint8_t b)
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{
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return make_color_a(r, g, b, 255);
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}
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uint32_t blend_pixel(uint32_t bg_value, uint32_t fg_value);
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#endif
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