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Diffstat (limited to 'mesalib/src/mesa/math/m_translate.h')
| -rw-r--r-- | mesalib/src/mesa/math/m_translate.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/mesalib/src/mesa/math/m_translate.h b/mesalib/src/mesa/math/m_translate.h new file mode 100644 index 000000000..c677682d5 --- /dev/null +++ b/mesalib/src/mesa/math/m_translate.h @@ -0,0 +1,122 @@ +/* + * 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 + * BRIAN PAUL 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/config.h" +#include "main/mtypes.h" /* hack for GLchan */ + + +/** + * 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 |