src/mesa/math/m_translate.h

   1 /* $Id: m_translate.h,v 1.1 2000/11/16 21:05:41 keithw Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.1
   6  *
   7  * Copyright (C) 1999  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 #ifndef _M_TRANSLATE_H_
  29 #define _M_TRANSLATE_H_
  30
  31
  32 typedef void (*trans_1f_func)(GLfloat *to,
  33                               CONST void *ptr,
  34                               GLuint stride,
  35                               GLuint start,
  36                               GLuint n );
  37
  38 typedef void (*trans_1ui_func)(GLuint *to,
  39                                CONST void *ptr,
  40                                GLuint stride,
  41                                GLuint start,
  42                                GLuint n );
  43
  44 typedef void (*trans_1ub_func)(GLubyte *to,
  45                                CONST void *ptr,
  46                                GLuint stride,
  47                                GLuint start,
  48                                GLuint n );
  49
  50 typedef void (*trans_4ub_func)(GLubyte (*to)[4],
  51                                CONST void *ptr,
  52                                GLuint stride,
  53                                GLuint start,
  54                                GLuint n );
  55
  56 typedef void (*trans_4f_func)(GLfloat (*to)[4],
  57                               CONST void *ptr,
  58                               GLuint stride,
  59                               GLuint start,
  60                               GLuint n );
  61
  62 typedef void (*trans_3f_func)(GLfloat (*to)[3],
  63                               CONST void *ptr,
  64                               GLuint stride,
  65                               GLuint start,
  66                               GLuint n );
  67
  68
  69
  70
  71 /* Translate GL_UNSIGNED_BYTE, etc to the indexes used in the arrays
  72  * below.
  73  */
  74 #define TYPE_IDX(t) ((t) & 0xf)
  75
  76 #define MAX_TYPES TYPE_IDX(GL_DOUBLE)+1      /* 0xa + 1 */
  77
  78 /* Only useful combinations are defined, thus there is no function to
  79  * translate eg, ubyte->float or ubyte->ubyte, which are never used.
  80  */
  81 extern trans_1f_func gl_trans_1f_tab[MAX_TYPES];
  82 extern trans_1ui_func gl_trans_1ui_tab[MAX_TYPES];
  83 extern trans_1ub_func gl_trans_1ub_tab[MAX_TYPES];
  84 extern trans_3f_func  gl_trans_3f_tab[MAX_TYPES];
  85 extern trans_4ub_func gl_trans_4ub_tab[5][MAX_TYPES];
  86 extern trans_4f_func  gl_trans_4f_tab[5][MAX_TYPES];
  87
  88
  89 extern void gl_init_translate( void );
  90
  91
  92 #endif