src/mesa/main/pixel.h

   1 /**
   2  * \file pixel.h
   3  * Pixel operations.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  5.1
   9  *
  10  * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef PIXEL_H
  32 #define PIXEL_H
  33
  34
  35 #include "mtypes.h"
  36
  37
  38 /** \name API functions */
  39 /*@*/
  40
  41 extern void
  42 _mesa_GetPixelMapfv( GLenum map, GLfloat *values );
  43
  44 extern void
  45 _mesa_GetPixelMapuiv( GLenum map, GLuint *values );
  46
  47 extern void
  48 _mesa_GetPixelMapusv( GLenum map, GLushort *values );
  49
  50 extern void
  51 _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values );
  52
  53 extern void
  54 _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values );
  55
  56 extern void
  57 _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values );
  58
  59 extern void
  60 _mesa_PixelStoref( GLenum pname, GLfloat param );
  61
  62 extern void
  63 _mesa_PixelStorei( GLenum pname, GLint param );
  64
  65 extern void
  66 _mesa_PixelTransferf( GLenum pname, GLfloat param );
  67
  68 extern void
  69 _mesa_PixelTransferi( GLenum pname, GLint param );
  70
  71 extern void
  72 _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor );
  73
  74 /*@}*/
  75
  76
  77 /** \name Pixel processing functions */
  78 /*@{*/
  79
  80 extern void
  81 _mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4],
  82                           GLfloat rScale, GLfloat gScale,
  83                           GLfloat bScale, GLfloat aScale,
  84                           GLfloat rBias, GLfloat gBias,
  85                           GLfloat bBias, GLfloat aBias);
  86
  87 extern void
  88 _mesa_map_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
  89
  90
  91 extern void
  92 _mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4]);
  93
  94
  95 extern void
  96 _mesa_lookup_rgba(const struct gl_color_table *table,
  97                   GLuint n, GLfloat rgba[][4]);
  98
  99
 100 extern void
 101 _mesa_shift_and_offset_ci(const GLcontext *ctx, GLuint n,
 102                           GLuint indexes[]);
 103
 104
 105 extern void
 106 _mesa_map_ci(const GLcontext *ctx, GLuint n, GLuint index[]);
 107
 108
 109 extern void
 110 _mesa_map_ci_to_rgba_chan(const GLcontext *ctx,
 111                           GLuint n, const GLuint index[],
 112                           GLchan rgba[][4]);
 113
 114
 115 extern void
 116 _mesa_map_ci_to_rgba(const GLcontext *ctx,
 117                      GLuint n, const GLuint index[], GLfloat rgba[][4]);
 118
 119
 120 extern void
 121 _mesa_map_ci8_to_rgba(const GLcontext *ctx,
 122                       GLuint n, const GLubyte index[],
 123                       GLchan rgba[][4]);
 124
 125
 126 extern void
 127 _mesa_shift_and_offset_stencil(const GLcontext *ctx, GLuint n,
 128                                GLstencil indexes[]);
 129
 130
 131 extern void
 132 _mesa_map_stencil(const GLcontext *ctx, GLuint n, GLstencil index[]);
 133
 134
 135 extern void
 136 _mesa_chan_to_float_span(const GLcontext *ctx, GLuint n,
 137                          CONST GLchan rgba[][4], GLfloat rgbaf[][4]);
 138
 139
 140 extern void
 141 _mesa_update_pixel( GLcontext *ctx, GLuint newstate );
 142
 143 extern void
 144 _mesa_init_pixel( GLcontext * ctx );
 145
 146 /*@}*/
 147
 148 #endif