dll/opengl/mesa/main/config.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.5
   4  *
   5  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
   6  * Copyright (C) 2008  VMware, Inc.  All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 /**
  27  * \file config.h
  28  * Tunable configuration parameters.
  29  */
  30
  31 #ifndef MESA_CONFIG_H_INCLUDED
  32 #define MESA_CONFIG_H_INCLUDED
  33
  34
  35 /**
  36  * \name OpenGL implementation limits
  37  */
  38 /*@{*/
  39
  40 /** Maximum modelview matrix stack depth */
  41 #define MAX_MODELVIEW_STACK_DEPTH 32
  42
  43 /** Maximum projection matrix stack depth */
  44 #define MAX_PROJECTION_STACK_DEPTH 32
  45
  46 /** Maximum texture matrix stack depth */
  47 #define MAX_TEXTURE_STACK_DEPTH 10
  48
  49 /** Maximum color matrix stack depth */
  50 #define MAX_COLOR_STACK_DEPTH 4
  51
  52 /** Maximum attribute stack depth */
  53 #define MAX_ATTRIB_STACK_DEPTH 16
  54
  55 /** Maximum client attribute stack depth */
  56 #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
  57
  58 /** Maximum recursion depth of display list calls */
  59 #define MAX_LIST_NESTING 64
  60
  61 /** Maximum number of lights */
  62 #define MAX_LIGHTS 8
  63
  64 /**
  65  * Maximum number of user-defined clipping planes supported by any driver in
  66  * Mesa.  This is used to size arrays.
  67  */
  68 #define MAX_CLIP_PLANES 8
  69
  70 /** Maximum pixel map lookup table size */
  71 #define MAX_PIXEL_MAP_TABLE 256
  72
  73 /** Maximum number of auxillary color buffers */
  74 #define MAX_AUX_BUFFERS 1
  75
  76 /** Maximum order (degree) of curves */
  77 #ifdef AMIGA
  78 #   define MAX_EVAL_ORDER 12
  79 #else
  80 #   define MAX_EVAL_ORDER 30
  81 #endif
  82
  83 /** Maximum Name stack depth */
  84 #define MAX_NAME_STACK_DEPTH 64
  85
  86 /** Minimum point size */
  87 #define MIN_POINT_SIZE 1.0
  88 /** Maximum point size */
  89 #define MAX_POINT_SIZE 60.0
  90 /** Point size granularity */
  91 #define POINT_SIZE_GRANULARITY 0.1
  92
  93 /** Minimum line width */
  94 #define MIN_LINE_WIDTH 1.0
  95 /** Maximum line width */
  96 #define MAX_LINE_WIDTH 10.0
  97 /** Line width granularity */
  98 #define LINE_WIDTH_GRANULARITY 0.1
  99
 100 /** Max memory to allow for a single texture image (in megabytes) */
 101 #define MAX_TEXTURE_MBYTES 1024
 102
 103 /** Number of 1D/2D texture mipmap levels */
 104 #define MAX_TEXTURE_LEVELS 15
 105
 106 /** Number of 3D texture mipmap levels */
 107 #define MAX_3D_TEXTURE_LEVELS 15
 108
 109 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
 110 #define MAX_CUBE_TEXTURE_LEVELS 15
 111
 112
 113 /**
 114  * Maximum viewport/image width. Must accomodate all texture sizes too.
 115  */
 116
 117 #ifndef MAX_WIDTH
 118 #   define MAX_WIDTH 16384
 119 #endif
 120 /** Maximum viewport/image height */
 121 #ifndef MAX_HEIGHT
 122 #   define MAX_HEIGHT 16384
 123 #endif
 124
 125 /* XXX: hack to prevent stack overflow on windows until all temporary arrays
 126  * [MAX_WIDTH] are allocated from the heap */
 127 #ifdef WIN32
 128 #undef MAX_TEXTURE_LEVELS
 129 #undef MAX_3D_TEXTURE_LEVELS
 130 #undef MAX_CUBE_TEXTURE_LEVELS
 131 #undef MAX_TEXTURE_RECT_SIZE
 132 #undef MAX_WIDTH
 133 #undef MAX_HEIGHT
 134 #define MAX_TEXTURE_LEVELS 13
 135 #define MAX_CUBE_TEXTURE_LEVELS 13
 136 #define MAX_WIDTH 4096
 137 #define MAX_HEIGHT 4096
 138 #endif
 139
 140 /** Maxmimum size for CVA.  May be overridden by the drivers.  */
 141 #define MAX_ARRAY_LOCK_SIZE 3000
 142
 143 /** Subpixel precision for antialiasing, window coordinate snapping */
 144 #define SUB_PIXEL_BITS 4
 145
 146 /** Size of histogram tables */
 147 #define HISTOGRAM_TABLE_SIZE 256
 148
 149 /** Max convolution filter width */
 150 #define MAX_CONVOLUTION_WIDTH 9
 151 /** Max convolution filter height */
 152 #define MAX_CONVOLUTION_HEIGHT 9
 153
 154 /** For GL_EXT_texture_filter_anisotropic */
 155 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
 156
 157 #define MAX_NV_VERTEX_PROGRAM_INPUTS 16
 158
 159
 160 /** For GL_EXT_framebuffer_object */
 161 /*@{*/
 162 #define MAX_COLOR_ATTACHMENTS 8
 163 /*@}*/
 164
 165 /** For GL_ATI_envmap_bump - support bump mapping on first 8 units */
 166 #define SUPPORTED_ATI_BUMP_UNITS 0xff
 167
 168
 169 /**
 170  * \name Mesa-specific parameters
 171  */
 172 /*@{*/
 173
 174
 175 /**
 176  * If non-zero use GLdouble for walking triangle edges, for better accuracy.
 177  */
 178 #define TRIANGLE_WALK_DOUBLE 0
 179
 180
 181 /**
 182  * Bits per depth buffer value (max is 32).
 183  */
 184 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
 185 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
 186 #endif
 187 /** Depth buffer data type */
 188 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
 189 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
 190 #else
 191 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
 192 #endif
 193
 194
 195 /**
 196  * Bits per stencil value: 8
 197  */
 198 #define STENCIL_BITS 8
 199
 200
 201 /**
 202  * For swrast, bits per color channel:  8, 16 or 32
 203  */
 204 #ifndef CHAN_BITS
 205 #define CHAN_BITS 8
 206 #endif
 207
 208
 209 /*
 210  * Color channel component order
 211  *
 212  * \note Changes will almost certainly cause problems at this time.
 213  */
 214 #define RCOMP 0
 215 #define GCOMP 1
 216 #define BCOMP 2
 217 #define ACOMP 3
 218
 219
 220 /**
 221  * Maximum number of temporary vertices required for clipping.
 222  *
 223  * Used in array_cache and tnl modules.
 224  */
 225 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
 226
 227
 228 #endif /* MESA_CONFIG_H_INCLUDED */