config.h revision 8ff8c91893cee8b1893de91e145c8496a12ab9ca
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 attribute stack depth */ 50#define MAX_ATTRIB_STACK_DEPTH 16 51 52/** Maximum client attribute stack depth */ 53#define MAX_CLIENT_ATTRIB_STACK_DEPTH 16 54 55/** Maximum recursion depth of display list calls */ 56#define MAX_LIST_NESTING 64 57 58/** Maximum number of lights */ 59#define MAX_LIGHTS 8 60 61/** 62 * Maximum number of user-defined clipping planes supported by any driver in 63 * Mesa. This is used to size arrays. 64 */ 65#define MAX_CLIP_PLANES 8 66 67/** Maximum pixel map lookup table size */ 68#define MAX_PIXEL_MAP_TABLE 256 69 70/** Maximum number of auxillary color buffers */ 71#define MAX_AUX_BUFFERS 1 72 73/** Maximum order (degree) of curves */ 74#define MAX_EVAL_ORDER 30 75 76/** Maximum Name stack depth */ 77#define MAX_NAME_STACK_DEPTH 64 78 79/** Minimum point size */ 80#define MIN_POINT_SIZE 1.0 81/** Maximum point size */ 82#define MAX_POINT_SIZE 60.0 83/** Point size granularity */ 84#define POINT_SIZE_GRANULARITY 0.1 85 86/** Minimum line width */ 87#define MIN_LINE_WIDTH 1.0 88/** Maximum line width */ 89#define MAX_LINE_WIDTH 10.0 90/** Line width granularity */ 91#define LINE_WIDTH_GRANULARITY 0.1 92 93/** Max texture palette / color table size */ 94#define MAX_COLOR_TABLE_SIZE 256 95 96/** Max memory to allow for a single texture image (in megabytes) */ 97#define MAX_TEXTURE_MBYTES 1024 98 99/** Number of 1D/2D texture mipmap levels */ 100#define MAX_TEXTURE_LEVELS 15 101 102/** Number of 3D texture mipmap levels */ 103#define MAX_3D_TEXTURE_LEVELS 15 104 105/** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */ 106#define MAX_CUBE_TEXTURE_LEVELS 15 107 108/** Maximum rectangular texture size - GL_NV_texture_rectangle */ 109#define MAX_TEXTURE_RECT_SIZE 16384 110 111/** 112 * Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array 113 */ 114#define MAX_ARRAY_TEXTURE_LAYERS 64 115 116/** 117 * Max number of texture coordinate units. This mainly just applies to 118 * the fixed-function vertex code. This will be difficult to raise above 119 * eight because of various vertex attribute bitvectors. 120 */ 121#define MAX_TEXTURE_COORD_UNITS 8 122 123/** 124 * Max number of texture image units. Also determines number of texture 125 * samplers in shaders. 126 */ 127#define MAX_TEXTURE_IMAGE_UNITS 16 128 129/** 130 * Larger of MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS. 131 * This value is only used for dimensioning arrays. 132 * Either MAX_TEXTURE_COORD_UNITS or MAX_TEXTURE_IMAGE_UNITS (or the 133 * corresponding ctx->Const.MaxTextureCoord/ImageUnits fields) should be 134 * used almost everywhere else. 135 */ 136#define MAX_TEXTURE_UNITS ((MAX_TEXTURE_COORD_UNITS > MAX_TEXTURE_IMAGE_UNITS) ? MAX_TEXTURE_COORD_UNITS : MAX_TEXTURE_IMAGE_UNITS) 137 138 139/** Maximum viewport size */ 140#define MAX_VIEWPORT_WIDTH 16384 141#define MAX_VIEWPORT_HEIGHT 16384 142 143/** Maxmimum size for CVA. May be overridden by the drivers. */ 144#define MAX_ARRAY_LOCK_SIZE 3000 145 146/** Subpixel precision for antialiasing, window coordinate snapping */ 147#define SUB_PIXEL_BITS 4 148 149/** For GL_ARB_texture_compression */ 150#define MAX_COMPRESSED_TEXTURE_FORMATS 25 151 152/** For GL_EXT_texture_filter_anisotropic */ 153#define MAX_TEXTURE_MAX_ANISOTROPY 16.0 154 155/** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */ 156#define MAX_TEXTURE_LOD_BIAS 14.0 157 158/** For any program target/extension */ 159/*@{*/ 160#define MAX_PROGRAM_INSTRUCTIONS (16 * 1024) 161 162/** 163 * Per-program constants (power of two) 164 * 165 * \c MAX_PROGRAM_LOCAL_PARAMS and \c MAX_UNIFORMS are just the assembly shader 166 * and GLSL shader names for the same thing. They should \b always have the 167 * same value. Each refers to the number of vec4 values supplied as 168 * per-program parameters. 169 */ 170/*@{*/ 171#define MAX_PROGRAM_LOCAL_PARAMS 4096 172#define MAX_UNIFORMS 4096 173/*@}*/ 174 175/** 176 * Per-context constants (power of two) 177 * 178 * \note 179 * This value should always be less than or equal to \c MAX_PROGRAM_LOCAL_PARAMS 180 * and \c MAX_VERTEX_PROGRAM_PARAMS. Otherwise some applications will make 181 * incorrect assumptions. 182 */ 183#define MAX_PROGRAM_ENV_PARAMS 256 184 185#define MAX_PROGRAM_MATRICES 8 186#define MAX_PROGRAM_MATRIX_STACK_DEPTH 4 187#define MAX_PROGRAM_CALL_DEPTH 8 188#define MAX_PROGRAM_TEMPS 256 189#define MAX_PROGRAM_ADDRESS_REGS 2 190#define MAX_VARYING 32 /**< number of float[4] vectors */ 191#define MAX_SAMPLERS MAX_TEXTURE_IMAGE_UNITS 192#define MAX_PROGRAM_INPUTS 32 193#define MAX_PROGRAM_OUTPUTS 64 194/*@}*/ 195 196/** For GL_ARB_vertex_program */ 197/*@{*/ 198#define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1 199#define MAX_VERTEX_PROGRAM_PARAMS MAX_UNIFORMS 200/*@}*/ 201 202/** For GL_ARB_fragment_program */ 203/*@{*/ 204#define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0 205/*@}*/ 206 207/** For GL_NV_vertex_program */ 208/*@{*/ 209#define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128 210#define MAX_NV_VERTEX_PROGRAM_TEMPS 12 211#define MAX_NV_VERTEX_PROGRAM_PARAMS 96 212#define MAX_NV_VERTEX_PROGRAM_INPUTS 16 213#define MAX_NV_VERTEX_PROGRAM_OUTPUTS 15 214/*@}*/ 215 216/** For GL_NV_fragment_program */ 217/*@{*/ 218#define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 1024 /* 72 for GL_ARB_f_p */ 219#define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96 220#define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64 221#define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12 222#define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3 223#define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2 224/*@}*/ 225 226 227/** For GL_ARB_vertex_shader */ 228/*@{*/ 229#define MAX_VERTEX_GENERIC_ATTRIBS 16 230#define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS 231#define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_VERTEX_TEXTURE_IMAGE_UNITS + \ 232 MAX_TEXTURE_IMAGE_UNITS) 233/*@}*/ 234 235 236/** For GL_ARB_draw_buffers */ 237/*@{*/ 238#define MAX_DRAW_BUFFERS 8 239/*@}*/ 240 241 242/** For GL_EXT_framebuffer_object */ 243/*@{*/ 244#define MAX_COLOR_ATTACHMENTS 8 245#define MAX_RENDERBUFFER_SIZE 16384 246/*@}*/ 247 248/** For GL_ATI_envmap_bump - support bump mapping on first 8 units */ 249#define SUPPORTED_ATI_BUMP_UNITS 0xff 250 251/** For GL_EXT_transform_feedback */ 252#define MAX_FEEDBACK_BUFFERS 4 253#define MAX_FEEDBACK_ATTRIBS 32 254 255/** For GL_ARB_geometry_shader4 */ 256/*@{*/ 257#define MAX_GEOMETRY_TEXTURE_IMAGE_UNITS 8 258#define MAX_GEOMETRY_VARYING_COMPONENTS 32 259#define MAX_VERTEX_VARYING_COMPONENTS 32 260#define MAX_GEOMETRY_UNIFORM_COMPONENTS 512 261#define MAX_GEOMETRY_OUTPUT_VERTICES 256 262#define MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS 1024 263/*@}*/ 264 265/** For GL_ARB_debug_output */ 266/*@{*/ 267#define MAX_DEBUG_LOGGED_MESSAGES 10 268#define MAX_DEBUG_MESSAGE_LENGTH 4096 269/*@}*/ 270 271 272/* 273 * Color channel component order 274 * 275 * \note Changes will almost certainly cause problems at this time. 276 */ 277#define RCOMP 0 278#define GCOMP 1 279#define BCOMP 2 280#define ACOMP 3 281 282 283/** 284 * Maximum number of temporary vertices required for clipping. 285 * 286 * Used in array_cache and tnl modules. 287 */ 288#define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1) 289 290 291#endif /* MESA_CONFIG_H_INCLUDED */ 292