2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
6 * Copyright (C) 2008 VMware, Inc. All Rights Reserved.
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9 * copy of this software and associated documentation files (the "Software"),
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13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
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20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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29 * Tunable configuration parameters.
32 #ifndef MESA_CONFIG_H_INCLUDED
33 #define MESA_CONFIG_H_INCLUDED
37 * \name OpenGL implementation limits
41 /** Maximum modelview matrix stack depth */
42 #define MAX_MODELVIEW_STACK_DEPTH 32
44 /** Maximum projection matrix stack depth */
45 #define MAX_PROJECTION_STACK_DEPTH 32
47 /** Maximum texture matrix stack depth */
48 #define MAX_TEXTURE_STACK_DEPTH 10
50 /** Maximum attribute stack depth */
51 #define MAX_ATTRIB_STACK_DEPTH 16
53 /** Maximum client attribute stack depth */
54 #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
56 /** Maximum recursion depth of display list calls */
57 #define MAX_LIST_NESTING 64
59 /** Maximum number of lights */
63 * Maximum number of user-defined clipping planes supported by any driver in
64 * Mesa. This is used to size arrays.
66 #define MAX_CLIP_PLANES 8
68 /** Maximum pixel map lookup table size */
69 #define MAX_PIXEL_MAP_TABLE 256
71 /** Maximum number of auxillary color buffers */
72 #define MAX_AUX_BUFFERS 1
74 /** Maximum order (degree) of curves */
75 #define MAX_EVAL_ORDER 30
77 /** Maximum Name stack depth */
78 #define MAX_NAME_STACK_DEPTH 64
80 /** Minimum point size */
81 #define MIN_POINT_SIZE 1.0
82 /** Maximum point size */
83 #define MAX_POINT_SIZE 60.0
84 /** Point size granularity */
85 #define POINT_SIZE_GRANULARITY 0.1
87 /** Minimum line width */
88 #define MIN_LINE_WIDTH 1.0
89 /** Maximum line width */
90 #define MAX_LINE_WIDTH 10.0
91 /** Line width granularity */
92 #define LINE_WIDTH_GRANULARITY 0.1
94 /** Max texture palette / color table size */
95 #define MAX_COLOR_TABLE_SIZE 256
97 /** Max memory to allow for a single texture image (in megabytes) */
98 #define MAX_TEXTURE_MBYTES 1024
100 /** Number of 1D/2D texture mipmap levels */
101 #define MAX_TEXTURE_LEVELS 15
103 /** Number of 3D texture mipmap levels */
104 #define MAX_3D_TEXTURE_LEVELS 15
106 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
107 #define MAX_CUBE_TEXTURE_LEVELS 15
109 /** Maximum rectangular texture size - GL_NV_texture_rectangle */
110 #define MAX_TEXTURE_RECT_SIZE 16384
113 * Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array
115 #define MAX_ARRAY_TEXTURE_LAYERS 64
118 * Max number of texture coordinate units. This mainly just applies to
119 * the fixed-function vertex code. This will be difficult to raise above
120 * eight because of various vertex attribute bitvectors.
122 #define MAX_TEXTURE_COORD_UNITS 8
125 * Max number of texture image units. Also determines number of texture
126 * samplers in shaders.
128 #define MAX_TEXTURE_IMAGE_UNITS 16
131 * Larger of MAX_TEXTURE_COORD_UNITS and MAX_TEXTURE_IMAGE_UNITS.
132 * This value is only used for dimensioning arrays.
133 * Either MAX_TEXTURE_COORD_UNITS or MAX_TEXTURE_IMAGE_UNITS (or the
134 * corresponding ctx->Const.MaxTextureCoord/ImageUnits fields) should be
135 * used almost everywhere else.
137 #define MAX_TEXTURE_UNITS ((MAX_TEXTURE_COORD_UNITS > MAX_TEXTURE_IMAGE_UNITS) ? MAX_TEXTURE_COORD_UNITS : MAX_TEXTURE_IMAGE_UNITS)
140 /** Maximum viewport size */
141 #define MAX_VIEWPORT_WIDTH 16384
142 #define MAX_VIEWPORT_HEIGHT 16384
144 /** Maxmimum size for CVA. May be overridden by the drivers. */
145 #define MAX_ARRAY_LOCK_SIZE 3000
147 /** Subpixel precision for antialiasing, window coordinate snapping */
148 #define SUB_PIXEL_BITS 4
150 /** For GL_ARB_texture_compression */
151 #define MAX_COMPRESSED_TEXTURE_FORMATS 25
153 /** For GL_EXT_texture_filter_anisotropic */
154 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
156 /** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */
157 #define MAX_TEXTURE_LOD_BIAS 14.0
159 /** For any program target/extension */
161 #define MAX_PROGRAM_INSTRUCTIONS (16 * 1024)
164 * Per-program constants (power of two)
166 * \c MAX_PROGRAM_LOCAL_PARAMS and \c MAX_UNIFORMS are just the assembly shader
167 * and GLSL shader names for the same thing. They should \b always have the
168 * same value. Each refers to the number of vec4 values supplied as
169 * per-program parameters.
172 #define MAX_PROGRAM_LOCAL_PARAMS 4096
173 #define MAX_UNIFORMS 4096
177 * Per-context constants (power of two)
180 * This value should always be less than or equal to \c MAX_PROGRAM_LOCAL_PARAMS
181 * and \c MAX_VERTEX_PROGRAM_PARAMS. Otherwise some applications will make
182 * incorrect assumptions.
184 #define MAX_PROGRAM_ENV_PARAMS 256
186 #define MAX_PROGRAM_MATRICES 8
187 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
188 #define MAX_PROGRAM_CALL_DEPTH 8
189 #define MAX_PROGRAM_TEMPS 256
190 #define MAX_PROGRAM_ADDRESS_REGS 2
191 #define MAX_VARYING 32 /**< number of float[4] vectors */
192 #define MAX_SAMPLERS MAX_TEXTURE_IMAGE_UNITS
193 #define MAX_PROGRAM_INPUTS 32
194 #define MAX_PROGRAM_OUTPUTS 64
197 /** For GL_ARB_vertex_program */
199 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
200 #define MAX_VERTEX_PROGRAM_PARAMS MAX_UNIFORMS
203 /** For GL_ARB_fragment_program */
205 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0
208 /** For GL_NV_fragment_program */
210 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 1024 /* 72 for GL_ARB_f_p */
211 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96
212 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64
213 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12
214 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3
215 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2
219 /** For GL_ARB_vertex_shader */
221 #define MAX_VERTEX_GENERIC_ATTRIBS 16
222 #define MAX_VERTEX_TEXTURE_IMAGE_UNITS MAX_TEXTURE_IMAGE_UNITS
223 #define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_VERTEX_TEXTURE_IMAGE_UNITS + \
224 MAX_TEXTURE_IMAGE_UNITS)
228 /** For GL_ARB_draw_buffers */
230 #define MAX_DRAW_BUFFERS 8
234 /** For GL_EXT_framebuffer_object */
236 #define MAX_COLOR_ATTACHMENTS 8
237 #define MAX_RENDERBUFFER_SIZE 16384
240 /** For GL_ATI_envmap_bump - support bump mapping on first 8 units */
241 #define SUPPORTED_ATI_BUMP_UNITS 0xff
243 /** For GL_EXT_transform_feedback */
244 #define MAX_FEEDBACK_BUFFERS 4
245 #define MAX_FEEDBACK_ATTRIBS 32
247 /** For GL_ARB_geometry_shader4 */
249 #define MAX_GEOMETRY_TEXTURE_IMAGE_UNITS 8
250 #define MAX_GEOMETRY_VARYING_COMPONENTS 32
251 #define MAX_VERTEX_VARYING_COMPONENTS 32
252 #define MAX_GEOMETRY_UNIFORM_COMPONENTS 512
253 #define MAX_GEOMETRY_OUTPUT_VERTICES 256
254 #define MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS 1024
257 /** For GL_ARB_debug_output */
259 #define MAX_DEBUG_LOGGED_MESSAGES 10
260 #define MAX_DEBUG_MESSAGE_LENGTH 4096
265 * Color channel component order
267 * \note Changes will almost certainly cause problems at this time.
276 * Maximum number of temporary vertices required for clipping.
278 * Used in array_cache and tnl modules.
280 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
283 #endif /* MESA_CONFIG_H_INCLUDED */