src/mesa/main/config.h

   1 /**
   2  * \file config.h
   3  * Tunable configuration parameters.
   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 CONFIG_H
  32 #define CONFIG_H
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "conf.h"
  36 #endif
  37
  38
  39 /**
  40  * \name OpenGL implementation limits
  41  */
  42 /*@{*/
  43
  44 /** Maximum modelview matrix stack depth */
  45 #define MAX_MODELVIEW_STACK_DEPTH 32
  46
  47 /** Maximum projection matrix stack depth */
  48 #define MAX_PROJECTION_STACK_DEPTH 32
  49
  50 /** Maximum texture matrix stack depth */
  51 #define MAX_TEXTURE_STACK_DEPTH 10
  52
  53 /** Maximum color matrix stack depth */
  54 #define MAX_COLOR_STACK_DEPTH 4
  55
  56 /** Maximum attribute stack depth */
  57 #define MAX_ATTRIB_STACK_DEPTH 16
  58
  59 /** Maximum client attribute stack depth */
  60 #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
  61
  62 /** Maximum recursion depth of display list calls */
  63 #define MAX_LIST_NESTING 64
  64
  65 /** Maximum number of lights */
  66 #define MAX_LIGHTS 8
  67
  68 /** Maximum user-defined clipping planes */
  69 #define MAX_CLIP_PLANES 6
  70
  71 /** Maximum pixel map lookup table size */
  72 #define MAX_PIXEL_MAP_TABLE 256
  73
  74 /** Number of auxillary color buffers */
  75 #define NUM_AUX_BUFFERS 0
  76
  77 /** Maximum order (degree) of curves */
  78 #ifdef AMIGA
  79 #   define MAX_EVAL_ORDER 12
  80 #else
  81 #   define MAX_EVAL_ORDER 30
  82 #endif
  83
  84 /** Maximum Name stack depth */
  85 #define MAX_NAME_STACK_DEPTH 64
  86
  87 /** Minimum point size */
  88 #define MIN_POINT_SIZE 1.0
  89 /** Maximum point size */
  90 #define MAX_POINT_SIZE 20.0
  91 /** Point size granularity */
  92 #define POINT_SIZE_GRANULARITY 0.1
  93
  94 /** Minimum line width */
  95 #define MIN_LINE_WIDTH 1.0
  96 /** Maximum line width */
  97 #define MAX_LINE_WIDTH 10.0
  98 /** Line width granularity */
  99 #define LINE_WIDTH_GRANULARITY 0.1
 100
 101 /** Max texture palette / color table size */
 102 #define MAX_COLOR_TABLE_SIZE 256
 103
 104 /** Number of 1D/2D texture mipmap levels */
 105 #define MAX_TEXTURE_LEVELS 12
 106
 107 /** Number of 3D texture mipmap levels */
 108 #define MAX_3D_TEXTURE_LEVELS 9
 109
 110 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
 111 #define MAX_CUBE_TEXTURE_LEVELS 12
 112
 113 /** Maximum rectangular texture size - GL_NV_texture_rectangle */
 114 #define MAX_TEXTURE_RECT_SIZE 2048
 115
 116 /** Number of texture units - GL_ARB_multitexture */
 117 #define MAX_TEXTURE_UNITS 8
 118
 119 /**
 120  * \name Separate numbers of texture coordinates and texture image units.
 121  *
 122  * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
 123  * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
 124  * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
 125  */
 126 /*@{*/
 127 #define MAX_TEXTURE_COORD_UNITS 8
 128 #define MAX_TEXTURE_IMAGE_UNITS 8
 129 /*@}*/
 130
 131 /**
 132  * Maximum viewport/image width. Must accomodate all texture sizes too.
 133  */
 134 #define MAX_WIDTH 2048
 135 /** Maximum viewport/image height */
 136 #define MAX_HEIGHT 2048
 137
 138 /** Maxmimum size for CVA.  May be overridden by the drivers.  */
 139 #define MAX_ARRAY_LOCK_SIZE 3000
 140
 141 /** Subpixel precision for antialiasing, window coordinate snapping */
 142 #define SUB_PIXEL_BITS 4
 143
 144 /** Size of histogram tables */
 145 #define HISTOGRAM_TABLE_SIZE 256
 146
 147 /** Max convolution filter width */
 148 #define MAX_CONVOLUTION_WIDTH 9
 149 /** Max convolution filter height */
 150 #define MAX_CONVOLUTION_HEIGHT 9
 151
 152 /** GL_ARB_texture_compression */
 153 #define MAX_COMPRESSED_TEXTURE_FORMATS 25
 154
 155 /** GL_EXT_texture_filter_anisotropic */
 156 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
 157
 158 /** GL_EXT_texture_lod_bias */
 159 #define MAX_TEXTURE_LOD_BIAS 4.0
 160
 161 /* GL_NV_vertex_program */
 162 #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
 163 #define MAX_NV_VERTEX_PROGRAM_TEMPS         12
 164 #define MAX_NV_VERTEX_PROGRAM_PARAMS        96
 165 #define MAX_NV_VERTEX_PROGRAM_INPUTS        16
 166 #define MAX_NV_VERTEX_PROGRAM_OUTPUTS       15
 167
 168 /* GL_NV_fragment_program */
 169 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 128
 170 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS         96
 171 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS        64
 172 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS        12
 173 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS        3
 174 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS    2
 175
 176 /* GL_ARB_vertex_program */
 177 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
 178
 179 /* GL_ARB_fragment_program */
 180 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 1
 181 #define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
 182 #define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
 183 #define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS  4
 184
 185 /* Any program target/extension */
 186 #define MAX_PROGRAM_LOCAL_PARAMS 96
 187 #define MAX_PROGRAM_MATRICES 8
 188 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
 189
 190 /*@}*/
 191
 192
 193 /**
 194  * \name Mesa-specific parameters
 195  */
 196 /*@{*/
 197
 198
 199 /**
 200  * Bits per accumulation buffer color component:  8, 16 or 32
 201  */
 202 #define ACCUM_BITS 16
 203
 204 /**
 205  * Bits per depth buffer value.
 206  *
 207  * Any reasonable value up to 31 will work.  32 doesn't work because of integer
 208  * overflow problems in the rasterizer code.
 209  */
 210 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
 211 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
 212 #endif
 213 /** Depth buffer data type */
 214 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
 215 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
 216 #else
 217 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
 218 #endif
 219
 220
 221 /**
 222  * Bits per stencil value: 8
 223  */
 224 #define STENCIL_BITS 8
 225
 226
 227 /**
 228  * Bits per color channel:  8, 16 or 32
 229  */
 230 #ifndef CHAN_BITS
 231 #define CHAN_BITS 8
 232 #endif
 233
 234
 235 /*
 236  * Color channel component order
 237  *
 238  * \note Changes will almost certainly cause problems at this time.
 239  */
 240 #define RCOMP 0
 241 #define GCOMP 1
 242 #define BCOMP 2
 243 #define ACOMP 3
 244
 245 #ifndef _HAVE_FULL_GL
 246 #define _HAVE_FULL_GL 1
 247 #endif
 248
 249 /*
 250  * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
 251  */
 252 #if _HAVE_FULL_GL
 253 #define FEATURE_NV_vertex_program 1
 254 #define FEATURE_NV_fragment_program 1
 255 #define FEATURE_ARB_vertex_buffer_object 1
 256 #define FEATURE_ARB_vertex_program 1
 257 #define FEATURE_ARB_fragment_program 1
 258 #define FEATURE_ARB_occlusion_query 1
 259 #define FEATURE_MESA_program_debug 1
 260 #define FEATURE_NV_fence 1
 261 #define FEATURE_userclip 1
 262 #define FEATURE_texgen 1
 263 #define FEATURE_windowpos 1
 264 #endif
 265
 266 /*@}*/
 267
 268
 269 #ifndef _HAVE_FULL_GL
 270 #define _HAVE_FULL_GL 1
 271 #endif
 272
 273
 274 #endif /* CONFIG_H */