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123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 6.5.1
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*
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* Copyright (C) 1999-2006 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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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _M_TRANSLATE_H_
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#define _M_TRANSLATE_H_
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#include "main/compiler.h"
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#include "main/glheader.h"
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#include "main/mtypes.h" /* hack for GLchan */
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#include "swrast/s_chan.h"
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/**
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* Array translation.
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* For example, convert array of GLushort[3] to GLfloat[4].
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* The function name specifies the destination format/size.
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* \param to the destination address
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* \param ptr the source address
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* \param stride the source stride (in bytes) between elements
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* \param type the source datatype (GL_SHORT, GL_UNSIGNED_INT, etc)
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* \param size number of values per element in source array (1,2,3 or 4)
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* \param start first element in source array to convert
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* \param n number of elements to convert
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*
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* Note: "element" means a tuple like GLfloat[3] or GLubyte[4].
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*/
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extern void _math_trans_1f(GLfloat *to,
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint start,
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GLuint n );
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extern void _math_trans_1ui(GLuint *to,
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint start,
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GLuint n );
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extern void _math_trans_1ub(GLubyte *to,
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint start,
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GLuint n );
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extern void _math_trans_4ub(GLubyte (*to)[4],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint size,
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GLuint start,
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GLuint n );
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extern void _math_trans_4chan( GLchan (*to)[4],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint size,
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GLuint start,
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GLuint n );
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extern void _math_trans_4us(GLushort (*to)[4],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint size,
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GLuint start,
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GLuint n );
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/** Convert to floats w/out normalization (i.e. just cast) */
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extern void _math_trans_4f(GLfloat (*to)[4],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint size,
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GLuint start,
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GLuint n );
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/** Convert to normalized floats in [0,1] or [-1, 1] */
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extern void _math_trans_4fn(GLfloat (*to)[4],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint size,
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GLuint start,
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GLuint n );
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extern void _math_trans_3fn(GLfloat (*to)[3],
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CONST void *ptr,
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GLuint stride,
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GLenum type,
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GLuint start,
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GLuint n );
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extern void _math_init_translate( void );
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#endif
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