2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #ifndef _M_TRANSLATE_H_
27 #define _M_TRANSLATE_H_
29 #include "main/compiler.h"
30 #include "main/glheader.h"
31 #include "main/mtypes.h" /* hack for GLchan */
32 #include "swrast/s_chan.h"
36 * For example, convert array of GLushort[3] to GLfloat[4].
37 * The function name specifies the destination format/size.
38 * \param to the destination address
39 * \param ptr the source address
40 * \param stride the source stride (in bytes) between elements
41 * \param type the source datatype (GL_SHORT, GL_UNSIGNED_INT, etc)
42 * \param size number of values per element in source array (1,2,3 or 4)
43 * \param start first element in source array to convert
44 * \param n number of elements to convert
46 * Note: "element" means a tuple like GLfloat[3] or GLubyte[4].
50 extern void _math_trans_1f(GLfloat
*to
,
57 extern void _math_trans_1ui(GLuint
*to
,
64 extern void _math_trans_1ub(GLubyte
*to
,
71 extern void _math_trans_4ub(GLubyte (*to
)[4],
79 extern void _math_trans_4chan( GLchan (*to
)[4],
87 extern void _math_trans_4us(GLushort (*to
)[4],
95 /** Convert to floats w/out normalization (i.e. just cast) */
96 extern void _math_trans_4f(GLfloat (*to
)[4],
104 /** Convert to normalized floats in [0,1] or [-1, 1] */
105 extern void _math_trans_4fn(GLfloat (*to
)[4],
113 extern void _math_trans_3fn(GLfloat (*to
)[3],
120 extern void _math_init_translate( void );