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/*
* Mesa 3-D graphics library
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file colormac.h
* Color-related macros
*/
#ifndef COLORMAC_H
#define COLORMAC_H
#include "config.h"
#include "macros.h"
/**
* Convert four float values in [0,1] to ubytes in [0,255] with clamping.
*/
static inline void
_mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4])
{
int i;
for (i = 0; i < 4; i++)
UNCLAMPED_FLOAT_TO_UBYTE(dst[i], src[i]);
}
/**
* \name Generic color packing macros. All inputs should be GLubytes.
*/
/*@{*/
#define PACK_COLOR_8888( X, Y, Z, W ) \
(((X) << 24) | ((Y) << 16) | ((Z) << 8) | (W))
#define PACK_COLOR_565( X, Y, Z ) \
((((X) & 0xf8) << 8) | (((Y) & 0xfc) << 3) | (((Z) & 0xf8) >> 3))
#define PACK_COLOR_1555( A, B, G, R ) \
((((B) & 0xf8) << 7) | (((G) & 0xf8) << 2) | (((R) & 0xf8) >> 3) | \
(((A) & 0x80) << 8))
#define PACK_COLOR_4444( R, G, B, A ) \
((((R) & 0xf0) << 8) | (((G) & 0xf0) << 4) | ((B) & 0xf0) | ((A) >> 4))
#define PACK_COLOR_88( L, A ) \
(((L) << 8) | (A))
/*@}*/
#endif /* COLORMAC_H */
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