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5564 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * |
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4 | * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the "Software"), |
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8 | * to deal in the Software without restriction, including without limitation |
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9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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10 | * and/or sell copies of the Software, and to permit persons to whom the |
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11 | * Software is furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included |
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14 | * in all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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17 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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22 | * OTHER DEALINGS IN THE SOFTWARE. |
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23 | */ |
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24 | |||
25 | |||
26 | #ifndef _M_TRANSLATE_H_ |
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27 | #define _M_TRANSLATE_H_ |
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28 | |||
29 | #include "main/glheader.h" |
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30 | |||
31 | /** |
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32 | * Array translation. |
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33 | * For example, convert array of GLushort[3] to GLfloat[4]. |
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34 | * The function name specifies the destination format/size. |
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35 | * \param to the destination address |
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36 | * \param ptr the source address |
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37 | * \param stride the source stride (in bytes) between elements |
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38 | * \param type the source datatype (GL_SHORT, GL_UNSIGNED_INT, etc) |
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39 | * \param size number of values per element in source array (1,2,3 or 4) |
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40 | * \param start first element in source array to convert |
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41 | * \param n number of elements to convert |
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42 | * |
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43 | * Note: "element" means a tuple like GLfloat[3] or GLubyte[4]. |
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44 | */ |
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45 | |||
46 | |||
47 | extern void _math_trans_1f(GLfloat *to, |
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48 | const void *ptr, |
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49 | GLuint stride, |
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50 | GLenum type, |
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51 | GLuint start, |
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52 | GLuint n ); |
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53 | |||
54 | extern void _math_trans_1ui(GLuint *to, |
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55 | const void *ptr, |
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56 | GLuint stride, |
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57 | GLenum type, |
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58 | GLuint start, |
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59 | GLuint n ); |
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60 | |||
61 | extern void _math_trans_1ub(GLubyte *to, |
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62 | const void *ptr, |
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63 | GLuint stride, |
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64 | GLenum type, |
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65 | GLuint start, |
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66 | GLuint n ); |
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67 | |||
68 | extern void _math_trans_4ub(GLubyte (*to)[4], |
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69 | const void *ptr, |
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70 | GLuint stride, |
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71 | GLenum type, |
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72 | GLuint size, |
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73 | GLuint start, |
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74 | GLuint n ); |
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75 | |||
76 | extern void _math_trans_4us(GLushort (*to)[4], |
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77 | const void *ptr, |
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78 | GLuint stride, |
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79 | GLenum type, |
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80 | GLuint size, |
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81 | GLuint start, |
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82 | GLuint n ); |
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83 | |||
84 | /** Convert to floats w/out normalization (i.e. just cast) */ |
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85 | extern void _math_trans_4f(GLfloat (*to)[4], |
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86 | const void *ptr, |
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87 | GLuint stride, |
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88 | GLenum type, |
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89 | GLuint size, |
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90 | GLuint start, |
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91 | GLuint n ); |
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92 | |||
93 | /** Convert to normalized floats in [0,1] or [-1, 1] */ |
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94 | extern void _math_trans_4fn(GLfloat (*to)[4], |
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95 | const void *ptr, |
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96 | GLuint stride, |
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97 | GLenum type, |
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98 | GLuint size, |
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99 | GLuint start, |
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100 | GLuint n ); |
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101 | |||
102 | extern void _math_trans_3fn(GLfloat (*to)[3], |
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103 | const void *ptr, |
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104 | GLuint stride, |
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105 | GLenum type, |
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106 | GLuint start, |
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107 | GLuint n ); |
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108 | |||
109 | extern void _math_init_translate( void ); |
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110 | |||
111 | |||
112 | #endif |