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/*
* Mesa 3-D graphics library
* Version: 6.5.1
*
* Copyright (C) 1999-2006 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.
*/
#ifndef _M_TRANSLATE_H_
#define _M_TRANSLATE_H_
#include "main/compiler.h"
#include "main/glheader.h"
#include "main/mtypes.h" /* hack for GLchan */
#include "swrast/s_chan.h"
/**
* Array translation.
* For example, convert array of GLushort[3] to GLfloat[4].
* The function name specifies the destination format/size.
* \param to the destination address
* \param ptr the source address
* \param stride the source stride (in bytes) between elements
* \param type the source datatype (GL_SHORT, GL_UNSIGNED_INT, etc)
* \param size number of values per element in source array (1,2,3 or 4)
* \param start first element in source array to convert
* \param n number of elements to convert
*
* Note: "element" means a tuple like GLfloat[3] or GLubyte[4].
*/
extern void _math_trans_1f(GLfloat *to,
const void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n );
extern void _math_trans_1ui(GLuint *to,
const void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n );
extern void _math_trans_1ub(GLubyte *to,
const void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n );
extern void _math_trans_4ub(GLubyte (*to)[4],
const void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n );
extern void _math_trans_4chan( GLchan (*to)[4],
const void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n );
extern void _math_trans_4us(GLushort (*to)[4],
const void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n );
/** Convert to floats w/out normalization (i.e. just cast) */
extern void _math_trans_4f(GLfloat (*to)[4],
const void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n );
/** Convert to normalized floats in [0,1] or [-1, 1] */
extern void _math_trans_4fn(GLfloat (*to)[4],
const void *ptr,
GLuint stride,
GLenum type,
GLuint size,
GLuint start,
GLuint n );
extern void _math_trans_3fn(GLfloat (*to)[3],
const void *ptr,
GLuint stride,
GLenum type,
GLuint start,
GLuint n );
extern void _math_init_translate( void );
#endif
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