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| 1901 | serge | 1 | /* |
| 2 | * Mesa 3-D graphics library |
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| 3 | * Version: 7.5 |
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| 4 | * |
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| 5 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
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| 6 | * Copyright (C) 2008 VMware, Inc. All Rights Reserved. |
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| 7 | * |
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| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 9 | * copy of this software and associated documentation files (the "Software"), |
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| 10 | * to deal in the Software without restriction, including without limitation |
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| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 13 | * Software is furnished to do so, subject to the following conditions: |
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| 14 | * |
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| 15 | * The above copyright notice and this permission notice shall be included |
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| 16 | * in all copies or substantial portions of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 21 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 22 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 24 | */ |
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| 25 | |||
| 26 | /** |
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| 27 | * \file config.h |
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| 28 | * Tunable configuration parameters. |
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| 29 | */ |
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| 30 | |||
| 31 | #ifndef MESA_CONFIG_H_INCLUDED |
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| 32 | #define MESA_CONFIG_H_INCLUDED |
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| 33 | |||
| 34 | |||
| 35 | /** |
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| 36 | * \name OpenGL implementation limits |
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| 37 | */ |
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| 38 | /*@{*/ |
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| 39 | |||
| 40 | /** Maximum modelview matrix stack depth */ |
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| 41 | #define MAX_MODELVIEW_STACK_DEPTH 32 |
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| 42 | |||
| 43 | /** Maximum projection matrix stack depth */ |
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| 44 | #define MAX_PROJECTION_STACK_DEPTH 32 |
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| 45 | |||
| 46 | /** Maximum texture matrix stack depth */ |
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| 47 | #define MAX_TEXTURE_STACK_DEPTH 10 |
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| 48 | |||
| 49 | /** Maximum color matrix stack depth */ |
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| 50 | #define MAX_COLOR_STACK_DEPTH 4 |
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| 51 | |||
| 52 | /** Maximum attribute stack depth */ |
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| 53 | #define MAX_ATTRIB_STACK_DEPTH 16 |
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| 54 | |||
| 55 | /** Maximum client attribute stack depth */ |
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| 56 | #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16 |
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| 57 | |||
| 58 | /** Maximum recursion depth of display list calls */ |
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| 59 | #define MAX_LIST_NESTING 64 |
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| 60 | |||
| 61 | /** Maximum number of lights */ |
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| 62 | #define MAX_LIGHTS 8 |
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| 63 | |||
| 64 | /** Maximum user-defined clipping planes */ |
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| 65 | #define MAX_CLIP_PLANES 6 |
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| 66 | |||
| 67 | /** Maximum pixel map lookup table size */ |
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| 68 | #define MAX_PIXEL_MAP_TABLE 256 |
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| 69 | |||
| 70 | /** Maximum number of auxillary color buffers */ |
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| 71 | #define MAX_AUX_BUFFERS 1 |
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| 72 | |||
| 73 | /** Maximum order (degree) of curves */ |
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| 74 | #ifdef AMIGA |
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| 75 | # define MAX_EVAL_ORDER 12 |
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| 76 | #else |
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| 77 | # define MAX_EVAL_ORDER 30 |
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| 78 | #endif |
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| 79 | |||
| 80 | /** Maximum Name stack depth */ |
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| 81 | #define MAX_NAME_STACK_DEPTH 64 |
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| 82 | |||
| 83 | /** Minimum point size */ |
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| 84 | #define MIN_POINT_SIZE 1.0 |
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| 85 | /** Maximum point size */ |
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| 86 | #define MAX_POINT_SIZE 60.0 |
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| 87 | /** Point size granularity */ |
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| 88 | #define POINT_SIZE_GRANULARITY 0.1 |
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| 89 | |||
| 90 | /** Minimum line width */ |
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| 91 | #define MIN_LINE_WIDTH 1.0 |
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| 92 | /** Maximum line width */ |
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| 93 | #define MAX_LINE_WIDTH 10.0 |
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| 94 | /** Line width granularity */ |
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| 95 | #define LINE_WIDTH_GRANULARITY 0.1 |
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| 96 | |||
| 97 | /** Max texture palette / color table size */ |
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| 98 | #define MAX_COLOR_TABLE_SIZE 256 |
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| 99 | |||
| 100 | /** Max memory to allow for a single texture image (in megabytes) */ |
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| 101 | #define MAX_TEXTURE_MBYTES 1024 |
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| 102 | |||
| 103 | /** Number of 1D/2D texture mipmap levels */ |
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| 104 | #define MAX_TEXTURE_LEVELS 15 |
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| 105 | |||
| 106 | /** Number of 3D texture mipmap levels */ |
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| 107 | #define MAX_3D_TEXTURE_LEVELS 15 |
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| 108 | |||
| 109 | /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */ |
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| 110 | #define MAX_CUBE_TEXTURE_LEVELS 15 |
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| 111 | |||
| 112 | /** Maximum rectangular texture size - GL_NV_texture_rectangle */ |
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| 113 | #define MAX_TEXTURE_RECT_SIZE 16384 |
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| 114 | |||
| 115 | /** Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array */ |
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| 116 | #define MAX_ARRAY_TEXTURE_LAYERS 64 |
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| 117 | |||
| 118 | /** |
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| 119 | * Max number of texture coordinate units. This mainly just applies to |
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| 120 | * the fixed-function vertex code. This will be difficult to raise above |
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| 121 | * eight because of various vertex attribute bitvectors. |
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| 122 | */ |
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| 123 | #define MAX_TEXTURE_COORD_UNITS 8 |
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| 124 | |||
| 125 | /** |
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| 126 | * Max number of texture image units. Also determines number of texture |
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| 127 | * samplers in shaders. |
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| 128 | */ |
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| 129 | #define MAX_TEXTURE_IMAGE_UNITS 16 |
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| 130 | |||
| 131 | /** |
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| 132 | * Larger of MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS. |
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| 133 | * This value is only used for dimensioning arrays. |
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| 134 | * Either MAX_TEXTURE_COORD_UNITS or MAX_TEXTURE_IMAGE_UNITS (or the |
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| 135 | * corresponding ctx->Const.MaxTextureCoord/ImageUnits fields) should be |
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| 136 | * used almost everywhere else. |
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| 137 | */ |
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| 138 | #define MAX_TEXTURE_UNITS ((MAX_TEXTURE_COORD_UNITS > MAX_TEXTURE_IMAGE_UNITS) ? MAX_TEXTURE_COORD_UNITS : MAX_TEXTURE_IMAGE_UNITS) |
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| 139 | |||
| 140 | |||
| 141 | /** |
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| 142 | * Maximum viewport/image width. Must accomodate all texture sizes too. |
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| 143 | */ |
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| 144 | |||
| 145 | #ifndef MAX_WIDTH |
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| 146 | # define MAX_WIDTH 16384 |
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| 147 | #endif |
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| 148 | /** Maximum viewport/image height */ |
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| 149 | #ifndef MAX_HEIGHT |
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| 150 | # define MAX_HEIGHT 16384 |
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| 151 | #endif |
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| 152 | |||
| 153 | /* XXX: hack to prevent stack overflow on windows until all temporary arrays |
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| 154 | * [MAX_WIDTH] are allocated from the heap */ |
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| 155 | #ifdef WIN32 |
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| 156 | #undef MAX_TEXTURE_LEVELS |
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| 157 | #undef MAX_3D_TEXTURE_LEVELS |
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| 158 | #undef MAX_CUBE_TEXTURE_LEVELS |
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| 159 | #undef MAX_TEXTURE_RECT_SIZE |
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| 160 | #undef MAX_WIDTH |
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| 161 | #undef MAX_HEIGHT |
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| 162 | #define MAX_TEXTURE_LEVELS 13 |
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| 163 | #define MAX_3D_TEXTURE_LEVELS 9 |
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| 164 | #define MAX_CUBE_TEXTURE_LEVELS 13 |
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| 165 | #define MAX_TEXTURE_RECT_SIZE 4096 |
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| 166 | #define MAX_WIDTH 4096 |
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| 167 | #define MAX_HEIGHT 4096 |
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| 168 | #endif |
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| 169 | |||
| 170 | /** Maxmimum size for CVA. May be overridden by the drivers. */ |
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| 171 | #define MAX_ARRAY_LOCK_SIZE 3000 |
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| 172 | |||
| 173 | /** Subpixel precision for antialiasing, window coordinate snapping */ |
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| 174 | #define SUB_PIXEL_BITS 4 |
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| 175 | |||
| 176 | /** Size of histogram tables */ |
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| 177 | #define HISTOGRAM_TABLE_SIZE 256 |
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| 178 | |||
| 179 | /** Max convolution filter width */ |
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| 180 | #define MAX_CONVOLUTION_WIDTH 9 |
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| 181 | /** Max convolution filter height */ |
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| 182 | #define MAX_CONVOLUTION_HEIGHT 9 |
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| 183 | |||
| 184 | /** For GL_ARB_texture_compression */ |
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| 185 | #define MAX_COMPRESSED_TEXTURE_FORMATS 25 |
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| 186 | |||
| 187 | /** For GL_EXT_texture_filter_anisotropic */ |
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| 188 | #define MAX_TEXTURE_MAX_ANISOTROPY 16.0 |
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| 189 | |||
| 190 | /** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */ |
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| 191 | #define MAX_TEXTURE_LOD_BIAS 14.0 |
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| 192 | |||
| 193 | /** For any program target/extension */ |
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| 194 | /*@{*/ |
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| 195 | #define MAX_PROGRAM_INSTRUCTIONS (16 * 1024) |
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| 196 | |||
| 197 | /** |
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| 198 | * Per-program constants (power of two) |
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| 199 | * |
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| 200 | * \c MAX_PROGRAM_LOCAL_PARAMS and \c MAX_UNIFORMS are just the assembly shader |
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| 201 | * and GLSL shader names for the same thing. They should \b always have the |
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| 202 | * same value. Each refers to the number of vec4 values supplied as |
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| 203 | * per-program parameters. |
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| 204 | */ |
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| 205 | /*@{*/ |
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| 206 | #define MAX_PROGRAM_LOCAL_PARAMS 1024 |
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| 207 | #define MAX_UNIFORMS 1024 |
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| 208 | /*@}*/ |
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| 209 | |||
| 210 | /** |
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| 211 | * Per-context constants (power of two) |
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| 212 | * |
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| 213 | * \note |
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| 214 | * This value should always be less than or equal to \c MAX_PROGRAM_LOCAL_PARAMS |
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| 215 | * and \c MAX_VERTEX_PROGRAM_PARAMS. Otherwise some applications will make |
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| 216 | * incorrect assumptions. |
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| 217 | */ |
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| 218 | #define MAX_PROGRAM_ENV_PARAMS 256 |
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| 219 | |||
| 220 | #define MAX_PROGRAM_MATRICES 8 |
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| 221 | #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4 |
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| 222 | #define MAX_PROGRAM_CALL_DEPTH 8 |
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| 223 | #define MAX_PROGRAM_TEMPS 256 |
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| 224 | #define MAX_PROGRAM_ADDRESS_REGS 2 |
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| 225 | #define MAX_VARYING 16 /**< number of float[4] vectors */ |
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| 226 | #define MAX_SAMPLERS MAX_TEXTURE_IMAGE_UNITS |
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| 227 | #define MAX_PROGRAM_INPUTS 32 |
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| 228 | #define MAX_PROGRAM_OUTPUTS 64 |
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| 229 | /*@}*/ |
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| 230 | |||
| 231 | /** For GL_ARB_vertex_program */ |
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| 232 | /*@{*/ |
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| 233 | #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1 |
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| 234 | #define MAX_VERTEX_PROGRAM_PARAMS MAX_UNIFORMS |
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| 235 | /*@}*/ |
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| 236 | |||
| 237 | /** For GL_ARB_fragment_program */ |
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| 238 | /*@{*/ |
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| 239 | #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0 |
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| 240 | /*@}*/ |
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| 241 | |||
| 242 | /** For GL_NV_vertex_program */ |
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| 243 | /*@{*/ |
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| 244 | #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128 |
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| 245 | #define MAX_NV_VERTEX_PROGRAM_TEMPS 12 |
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| 246 | #define MAX_NV_VERTEX_PROGRAM_PARAMS 96 |
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| 247 | #define MAX_NV_VERTEX_PROGRAM_INPUTS 16 |
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| 248 | #define MAX_NV_VERTEX_PROGRAM_OUTPUTS 15 |
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| 249 | /*@}*/ |
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| 250 | |||
| 251 | /** For GL_NV_fragment_program */ |
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| 252 | /*@{*/ |
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| 253 | #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 1024 /* 72 for GL_ARB_f_p */ |
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| 254 | #define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96 |
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| 255 | #define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64 |
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| 256 | #define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12 |
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| 257 | #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3 |
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| 258 | #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2 |
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| 259 | /*@}*/ |
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| 260 | |||
| 261 | |||
| 262 | /** For GL_ARB_vertex_shader */ |
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| 263 | /*@{*/ |
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| 264 | #define MAX_VERTEX_GENERIC_ATTRIBS 16 |
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| 265 | #define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS |
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| 266 | #define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_VERTEX_TEXTURE_IMAGE_UNITS + \ |
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| 267 | MAX_TEXTURE_IMAGE_UNITS) |
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| 268 | /*@}*/ |
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| 269 | |||
| 270 | |||
| 271 | /** For GL_ARB_draw_buffers */ |
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| 272 | /*@{*/ |
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| 273 | #define MAX_DRAW_BUFFERS 8 |
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| 274 | /*@}*/ |
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| 275 | |||
| 276 | |||
| 277 | /** For GL_EXT_framebuffer_object */ |
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| 278 | /*@{*/ |
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| 279 | #define MAX_COLOR_ATTACHMENTS 8 |
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| 280 | /*@}*/ |
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| 281 | |||
| 282 | /** For GL_ATI_envmap_bump - support bump mapping on first 8 units */ |
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| 283 | #define SUPPORTED_ATI_BUMP_UNITS 0xff |
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| 284 | |||
| 285 | /** For GL_EXT_transform_feedback */ |
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| 286 | #define MAX_FEEDBACK_ATTRIBS 32 |
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| 287 | |||
| 288 | /** For GL_ARB_geometry_shader4 */ |
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| 289 | /*@{*/ |
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| 290 | #define MAX_GEOMETRY_TEXTURE_IMAGE_UNITS 8 |
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| 291 | #define MAX_GEOMETRY_VARYING_COMPONENTS 32 |
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| 292 | #define MAX_VERTEX_VARYING_COMPONENTS 32 |
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| 293 | #define MAX_GEOMETRY_UNIFORM_COMPONENTS 512 |
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| 294 | #define MAX_GEOMETRY_OUTPUT_VERTICES 256 |
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| 295 | #define MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS 1024 |
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| 296 | /*@}*/ |
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| 297 | |||
| 298 | |||
| 299 | /** |
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| 300 | * \name Mesa-specific parameters |
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| 301 | */ |
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| 302 | /*@{*/ |
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| 303 | |||
| 304 | |||
| 305 | /** |
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| 306 | * If non-zero use GLdouble for walking triangle edges, for better accuracy. |
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| 307 | */ |
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| 308 | #define TRIANGLE_WALK_DOUBLE 0 |
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| 309 | |||
| 310 | |||
| 311 | /** |
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| 312 | * Bits per depth buffer value (max is 32). |
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| 313 | */ |
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| 314 | #ifndef DEFAULT_SOFTWARE_DEPTH_BITS |
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| 315 | #define DEFAULT_SOFTWARE_DEPTH_BITS 16 |
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| 316 | #endif |
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| 317 | /** Depth buffer data type */ |
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| 318 | #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16 |
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| 319 | #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort |
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| 320 | #else |
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| 321 | #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint |
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| 322 | #endif |
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| 323 | |||
| 324 | |||
| 325 | /** |
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| 326 | * Bits per stencil value: 8 |
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| 327 | */ |
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| 328 | #define STENCIL_BITS 8 |
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| 329 | |||
| 330 | |||
| 331 | /** |
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| 332 | * Bits per color channel: 8, 16 or 32 |
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| 333 | */ |
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| 334 | #ifndef CHAN_BITS |
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| 335 | #define CHAN_BITS 8 |
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| 336 | #endif |
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| 337 | |||
| 338 | |||
| 339 | /* |
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| 340 | * Color channel component order |
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| 341 | * |
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| 342 | * \note Changes will almost certainly cause problems at this time. |
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| 343 | */ |
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| 344 | #define RCOMP 0 |
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| 345 | #define GCOMP 1 |
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| 346 | #define BCOMP 2 |
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| 347 | #define ACOMP 3 |
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| 348 | |||
| 349 | |||
| 350 | /** |
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| 351 | * Maximum number of temporary vertices required for clipping. |
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| 352 | * |
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| 353 | * Used in array_cache and tnl modules. |
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| 354 | */ |
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| 355 | #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1) |
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| 356 | |||
| 357 | |||
| 358 | #endif /* MESA_CONFIG_H_INCLUDED */ |