reactos/dll/opengl/mesa/src/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 texture palette / color table size */
 101 #define MAX_COLOR_TABLE_SIZE 256
 102
 103 /** Max memory to allow for a single texture image (in megabytes) */
 104 #define MAX_TEXTURE_MBYTES 1024
 105
 106 /** Number of 1D/2D texture mipmap levels */
 107 #define MAX_TEXTURE_LEVELS 15
 108
 109 /** Number of 3D texture mipmap levels */
 110 #define MAX_3D_TEXTURE_LEVELS 15
 111
 112 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
 113 #define MAX_CUBE_TEXTURE_LEVELS 15
 114
 115 /** Maximum rectangular texture size - GL_NV_texture_rectangle */
 116 #define MAX_TEXTURE_RECT_SIZE 16384
 117
 118 /** Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array */
 119 #define MAX_ARRAY_TEXTURE_LAYERS 64
 120
 121 /**
 122  * Max number of texture coordinate units.  This mainly just applies to
 123  * the fixed-function vertex code.  This will be difficult to raise above
 124  * eight because of various vertex attribute bitvectors.
 125  */
 126 #define MAX_TEXTURE_COORD_UNITS 8
 127
 128 /**
 129  * Max number of texture image units.  Also determines number of texture
 130  * samplers in shaders.
 131  */
 132 #define MAX_TEXTURE_IMAGE_UNITS 16
 133
 134 /**
 135  * Larger of MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS.
 136  * This value is only used for dimensioning arrays.
 137  * Either MAX_TEXTURE_COORD_UNITS or MAX_TEXTURE_IMAGE_UNITS (or the
 138  * corresponding ctx->Const.MaxTextureCoord/ImageUnits fields) should be
 139  * used almost everywhere else.
 140  */
 141 #define MAX_TEXTURE_UNITS ((MAX_TEXTURE_COORD_UNITS > MAX_TEXTURE_IMAGE_UNITS) ? MAX_TEXTURE_COORD_UNITS : MAX_TEXTURE_IMAGE_UNITS)
 142
 143
 144 /**
 145  * Maximum viewport/image width. Must accomodate all texture sizes too.
 146  */
 147
 148 #ifndef MAX_WIDTH
 149 #   define MAX_WIDTH 16384
 150 #endif
 151 /** Maximum viewport/image height */
 152 #ifndef MAX_HEIGHT
 153 #   define MAX_HEIGHT 16384
 154 #endif
 155
 156 /* XXX: hack to prevent stack overflow on windows until all temporary arrays
 157  * [MAX_WIDTH] are allocated from the heap */
 158 #ifdef WIN32
 159 #undef MAX_TEXTURE_LEVELS
 160 #undef MAX_3D_TEXTURE_LEVELS
 161 #undef MAX_CUBE_TEXTURE_LEVELS
 162 #undef MAX_TEXTURE_RECT_SIZE
 163 #undef MAX_WIDTH
 164 #undef MAX_HEIGHT
 165 #define MAX_TEXTURE_LEVELS 13
 166 #define MAX_3D_TEXTURE_LEVELS 9
 167 #define MAX_CUBE_TEXTURE_LEVELS 13
 168 #define MAX_TEXTURE_RECT_SIZE 4096
 169 #define MAX_WIDTH 4096
 170 #define MAX_HEIGHT 4096
 171 #endif
 172
 173 /** Maxmimum size for CVA.  May be overridden by the drivers.  */
 174 #define MAX_ARRAY_LOCK_SIZE 3000
 175
 176 /** Subpixel precision for antialiasing, window coordinate snapping */
 177 #define SUB_PIXEL_BITS 4
 178
 179 /** Size of histogram tables */
 180 #define HISTOGRAM_TABLE_SIZE 256
 181
 182 /** Max convolution filter width */
 183 #define MAX_CONVOLUTION_WIDTH 9
 184 /** Max convolution filter height */
 185 #define MAX_CONVOLUTION_HEIGHT 9
 186
 187 /** For GL_ARB_texture_compression */
 188 #define MAX_COMPRESSED_TEXTURE_FORMATS 25
 189
 190 /** For GL_EXT_texture_filter_anisotropic */
 191 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
 192
 193 /** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */
 194 #define MAX_TEXTURE_LOD_BIAS 14.0
 195
 196 /** For any program target/extension */
 197 /*@{*/
 198 #define MAX_PROGRAM_INSTRUCTIONS       (16 * 1024)
 199
 200 /**
 201  * Per-program constants (power of two)
 202  *
 203  * \c MAX_PROGRAM_LOCAL_PARAMS and \c MAX_UNIFORMS are just the assembly shader
 204  * and GLSL shader names for the same thing.  They should \b always have the
 205  * same value.  Each refers to the number of vec4 values supplied as
 206  * per-program parameters.
 207  */
 208 /*@{*/
 209 #define MAX_PROGRAM_LOCAL_PARAMS       4096
 210 #define MAX_UNIFORMS                   4096
 211 /*@}*/
 212
 213 /**
 214  * Per-context constants (power of two)
 215  *
 216  * \note
 217  * This value should always be less than or equal to \c MAX_PROGRAM_LOCAL_PARAMS
 218  * and \c MAX_VERTEX_PROGRAM_PARAMS.  Otherwise some applications will make
 219  * incorrect assumptions.
 220  */
 221 #define MAX_PROGRAM_ENV_PARAMS         256
 222
 223 #define MAX_PROGRAM_MATRICES           8
 224 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
 225 #define MAX_PROGRAM_CALL_DEPTH         8
 226 #define MAX_PROGRAM_TEMPS              256
 227 #define MAX_PROGRAM_ADDRESS_REGS       2
 228 #define MAX_VARYING                    16    /**< number of float[4] vectors */
 229 #define MAX_SAMPLERS                   MAX_TEXTURE_IMAGE_UNITS
 230 #define MAX_PROGRAM_INPUTS             32
 231 #define MAX_PROGRAM_OUTPUTS            64
 232 /*@}*/
 233
 234 /** For GL_ARB_vertex_program */
 235 /*@{*/
 236 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
 237 #define MAX_VERTEX_PROGRAM_PARAMS       MAX_UNIFORMS
 238 /*@}*/
 239
 240 /** For GL_ARB_fragment_program */
 241 /*@{*/
 242 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0
 243 /*@}*/
 244
 245 /** For GL_NV_vertex_program */
 246 /*@{*/
 247 #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
 248 #define MAX_NV_VERTEX_PROGRAM_TEMPS         12
 249 #define MAX_NV_VERTEX_PROGRAM_PARAMS        96
 250 #define MAX_NV_VERTEX_PROGRAM_INPUTS        16
 251 #define MAX_NV_VERTEX_PROGRAM_OUTPUTS       15
 252 /*@}*/
 253
 254 /** For GL_NV_fragment_program */
 255 /*@{*/
 256 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 1024 /* 72 for GL_ARB_f_p */
 257 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS         96
 258 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS        64
 259 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS        12
 260 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS        3
 261 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS    2
 262 /*@}*/
 263
 264
 265 /** For GL_ARB_vertex_shader */
 266 /*@{*/
 267 #define MAX_VERTEX_GENERIC_ATTRIBS 16
 268 #define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS
 269 #define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_VERTEX_TEXTURE_IMAGE_UNITS + \
 270                                           MAX_TEXTURE_IMAGE_UNITS)
 271 /*@}*/
 272
 273
 274 /** For GL_ARB_draw_buffers */
 275 /*@{*/
 276 #define MAX_DRAW_BUFFERS 8
 277 /*@}*/
 278
 279
 280 /** For GL_EXT_framebuffer_object */
 281 /*@{*/
 282 #define MAX_COLOR_ATTACHMENTS 8
 283 /*@}*/
 284
 285 /** For GL_ATI_envmap_bump - support bump mapping on first 8 units */
 286 #define SUPPORTED_ATI_BUMP_UNITS 0xff
 287
 288 /** For GL_EXT_transform_feedback */
 289 #define MAX_FEEDBACK_ATTRIBS 32
 290
 291 /** For GL_ARB_geometry_shader4 */
 292 /*@{*/
 293 #define MAX_GEOMETRY_TEXTURE_IMAGE_UNITS             8
 294 #define MAX_GEOMETRY_VARYING_COMPONENTS              32
 295 #define MAX_VERTEX_VARYING_COMPONENTS                32
 296 #define MAX_GEOMETRY_UNIFORM_COMPONENTS              512
 297 #define MAX_GEOMETRY_OUTPUT_VERTICES                 256
 298 #define MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS         1024
 299 /*@}*/
 300
 301
 302 /**
 303  * \name Mesa-specific parameters
 304  */
 305 /*@{*/
 306
 307
 308 /**
 309  * If non-zero use GLdouble for walking triangle edges, for better accuracy.
 310  */
 311 #define TRIANGLE_WALK_DOUBLE 0
 312
 313
 314 /**
 315  * Bits per depth buffer value (max is 32).
 316  */
 317 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
 318 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
 319 #endif
 320 /** Depth buffer data type */
 321 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
 322 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
 323 #else
 324 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
 325 #endif
 326
 327
 328 /**
 329  * Bits per stencil value: 8
 330  */
 331 #define STENCIL_BITS 8
 332
 333
 334 /**
 335  * For swrast, bits per color channel:  8, 16 or 32
 336  */
 337 #ifndef CHAN_BITS
 338 #define CHAN_BITS 8
 339 #endif
 340
 341
 342 /*
 343  * Color channel component order
 344  *
 345  * \note Changes will almost certainly cause problems at this time.
 346  */
 347 #define RCOMP 0
 348 #define GCOMP 1
 349 #define BCOMP 2
 350 #define ACOMP 3
 351
 352
 353 /**
 354  * Maximum number of temporary vertices required for clipping.
 355  *
 356  * Used in array_cache and tnl modules.
 357  */
 358 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
 359
 360
 361 #endif /* MESA_CONFIG_H_INCLUDED */