/*
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* Mesa 3-D graphics library
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*
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* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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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
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* in 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
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* OR 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
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file colormac.h
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* Color-related macros
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*/
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#ifndef COLORMAC_H
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#define COLORMAC_H
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#include "config.h"
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#include "macros.h"
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#include "mtypes.h"
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/**
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* Convert four float values in [0,1] to ubytes in [0,255] with clamping.
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*/
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static inline void
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_mesa_unclamped_float_rgba_to_ubyte(GLubyte dst[4], const GLfloat src[4])
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{
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int i;
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for (i = 0; i < 4; i++)
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UNCLAMPED_FLOAT_TO_UBYTE(dst[i], src[i]);
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}
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/**
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* \name Generic color packing macros. All inputs should be GLubytes.
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*/
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/*@{*/
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#define PACK_COLOR_8888( X, Y, Z, W ) \
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(((X) << 24) | ((Y) << 16) | ((Z) << 8) | (W))
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#define PACK_COLOR_565( X, Y, Z ) \
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((((X) & 0xf8) << 8) | (((Y) & 0xfc) << 3) | (((Z) & 0xf8) >> 3))
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#define PACK_COLOR_1555( A, B, G, R ) \
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((((B) & 0xf8) << 7) | (((G) & 0xf8) << 2) | (((R) & 0xf8) >> 3) | \
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(((A) & 0x80) << 8))
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#define PACK_COLOR_4444( R, G, B, A ) \
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((((R) & 0xf0) << 8) | (((G) & 0xf0) << 4) | ((B) & 0xf0) | ((A) >> 4))
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#define PACK_COLOR_88( L, A ) \
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(((L) << 8) | (A))
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/*@}*/
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#endif /* COLORMAC_H */
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