1 /* 2 * Mesa 3-D graphics library 3 * Version: 6.5.1 4 * 5 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 6 * 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: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 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. 23 */ 24 25 26 #ifndef _M_TRANSLATE_H_ 27 #define _M_TRANSLATE_H_ 28 29 #include "main/compiler.h" 30 #include "main/glheader.h" 31 #include "main/mtypes.h" /* hack for GLchan */ 32 #include "swrast/s_chan.h" 33 34 /** 35 * Array translation. 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 45 * 46 * Note: "element" means a tuple like GLfloat[3] or GLubyte[4]. 47 */ 48 49 50 extern void _math_trans_1f(GLfloat *to, 51 CONST void *ptr, 52 GLuint stride, 53 GLenum type, 54 GLuint start, 55 GLuint n ); 56 57 extern void _math_trans_1ui(GLuint *to, 58 CONST void *ptr, 59 GLuint stride, 60 GLenum type, 61 GLuint start, 62 GLuint n ); 63 64 extern void _math_trans_1ub(GLubyte *to, 65 CONST void *ptr, 66 GLuint stride, 67 GLenum type, 68 GLuint start, 69 GLuint n ); 70 71 extern void _math_trans_4ub(GLubyte (*to)[4], 72 CONST void *ptr, 73 GLuint stride, 74 GLenum type, 75 GLuint size, 76 GLuint start, 77 GLuint n ); 78 79 extern void _math_trans_4chan( GLchan (*to)[4], 80 CONST void *ptr, 81 GLuint stride, 82 GLenum type, 83 GLuint size, 84 GLuint start, 85 GLuint n ); 86 87 extern void _math_trans_4us(GLushort (*to)[4], 88 CONST void *ptr, 89 GLuint stride, 90 GLenum type, 91 GLuint size, 92 GLuint start, 93 GLuint n ); 94 95 /** Convert to floats w/out normalization (i.e. just cast) */ 96 extern void _math_trans_4f(GLfloat (*to)[4], 97 CONST void *ptr, 98 GLuint stride, 99 GLenum type, 100 GLuint size, 101 GLuint start, 102 GLuint n ); 103 104 /** Convert to normalized floats in [0,1] or [-1, 1] */ 105 extern void _math_trans_4fn(GLfloat (*to)[4], 106 CONST void *ptr, 107 GLuint stride, 108 GLenum type, 109 GLuint size, 110 GLuint start, 111 GLuint n ); 112 113 extern void _math_trans_3fn(GLfloat (*to)[3], 114 CONST void *ptr, 115 GLuint stride, 116 GLenum type, 117 GLuint start, 118 GLuint n ); 119 120 extern void _math_init_translate( void ); 121 122 123 #endif 124
