3 * Tunable configuration parameters.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
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:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
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.
40 * \name OpenGL implementation limits
44 /** Maximum modelview matrix stack depth */
45 #define MAX_MODELVIEW_STACK_DEPTH 32
47 /** Maximum projection matrix stack depth */
48 #define MAX_PROJECTION_STACK_DEPTH 32
50 /** Maximum texture matrix stack depth */
51 #define MAX_TEXTURE_STACK_DEPTH 10
53 /** Maximum color matrix stack depth */
54 #define MAX_COLOR_STACK_DEPTH 4
56 /** Maximum attribute stack depth */
57 #define MAX_ATTRIB_STACK_DEPTH 16
59 /** Maximum client attribute stack depth */
60 #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
62 /** Maximum recursion depth of display list calls */
63 #define MAX_LIST_NESTING 64
65 /** Maximum number of lights */
68 /** Maximum user-defined clipping planes */
69 #define MAX_CLIP_PLANES 6
71 /** Maximum pixel map lookup table size */
72 #define MAX_PIXEL_MAP_TABLE 256
74 /** Maximum Number of auxillary color buffers */
75 #define MAX_AUX_BUFFERS 4
77 /** Maximum order (degree) of curves */
79 # define MAX_EVAL_ORDER 12
81 # define MAX_EVAL_ORDER 30
84 /** Maximum Name stack depth */
85 #define MAX_NAME_STACK_DEPTH 64
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
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
101 /** Max texture palette / color table size */
102 #define MAX_COLOR_TABLE_SIZE 256
104 /** Number of 1D/2D texture mipmap levels */
105 #define MAX_TEXTURE_LEVELS 12
107 /** Number of 3D texture mipmap levels */
108 #define MAX_3D_TEXTURE_LEVELS 9
110 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
111 #define MAX_CUBE_TEXTURE_LEVELS 12
113 /** Maximum rectangular texture size - GL_NV_texture_rectangle */
114 #define MAX_TEXTURE_RECT_SIZE 2048
116 /** Number of texture units - GL_ARB_multitexture */
117 #define MAX_TEXTURE_UNITS 8
123 * \name Separate numbers of texture coordinates and texture image units.
125 * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
126 * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
127 * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
130 #define MAX_TEXTURE_COORD_UNITS 8
131 #define MAX_TEXTURE_IMAGE_UNITS 8
135 * Maximum viewport/image width. Must accomodate all texture sizes too.
137 #define MAX_WIDTH 4096
138 /** Maximum viewport/image height */
139 #define MAX_HEIGHT 4096
141 /** Maxmimum size for CVA. May be overridden by the drivers. */
142 #define MAX_ARRAY_LOCK_SIZE 3000
144 /** Subpixel precision for antialiasing, window coordinate snapping */
145 #define SUB_PIXEL_BITS 4
147 /** Size of histogram tables */
148 #define HISTOGRAM_TABLE_SIZE 256
150 /** Max convolution filter width */
151 #define MAX_CONVOLUTION_WIDTH 9
152 /** Max convolution filter height */
153 #define MAX_CONVOLUTION_HEIGHT 9
155 /** For GL_ARB_texture_compression */
156 #define MAX_COMPRESSED_TEXTURE_FORMATS 25
158 /** For GL_EXT_texture_filter_anisotropic */
159 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
161 /** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */
162 #define MAX_TEXTURE_LOD_BIAS 11.0
164 /** For GL_NV_vertex_program */
166 #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
167 #define MAX_NV_VERTEX_PROGRAM_TEMPS 12
168 #define MAX_NV_VERTEX_PROGRAM_PARAMS 96
169 #define MAX_NV_VERTEX_PROGRAM_INPUTS 16
170 #define MAX_NV_VERTEX_PROGRAM_OUTPUTS 15
173 /** For GL_NV_fragment_program */
175 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 128
176 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96
177 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64
178 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12
179 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3
180 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2
183 /** For GL_ARB_vertex_program */
185 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
186 #define MAX_VERTEX_PROGRAM_ATTRIBS 16
189 /** For GL_ARB_fragment_program */
191 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 1
192 #define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
193 #define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
194 #define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS 4
197 /** For any program target/extension */
199 #define MAX_PROGRAM_LOCAL_PARAMS 96
200 #define MAX_PROGRAM_MATRICES 8
201 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
205 /** For GL_ARB_draw_buffers */
207 #define MAX_DRAW_BUFFERS 1
213 * \name Mesa-specific parameters
219 * If non-zero use GLdouble for walking triangle edges, for better accuracy.
221 #define TRIANGLE_WALK_DOUBLE 0
224 * Bits per accumulation buffer color component: 8, 16 or 32
226 #define ACCUM_BITS 16
229 * Bits per depth buffer value.
231 * Any reasonable value up to 31 will work. 32 doesn't work because of integer
232 * overflow problems in the rasterizer code.
234 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
235 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
237 /** Depth buffer data type */
238 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
239 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
241 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
246 * Bits per stencil value: 8
248 #define STENCIL_BITS 8
252 * Bits per color channel: 8, 16 or 32
260 * Color channel component order
262 * \note Changes will almost certainly cause problems at this time.
271 * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
273 #ifndef _HAVE_FULL_GL
274 #define _HAVE_FULL_GL 1
277 #define FEATURE_ARB_vertex_buffer_object _HAVE_FULL_GL
278 #define FEATURE_ARB_vertex_program _HAVE_FULL_GL
279 #define FEATURE_ARB_fragment_program _HAVE_FULL_GL
280 #define FEATURE_ARB_occlusion_query _HAVE_FULL_GL
281 #define FEATURE_EXT_pixel_buffer_object _HAVE_FULL_GL
282 #define FEATURE_MESA_program_debug _HAVE_FULL_GL
283 #define FEATURE_NV_fence _HAVE_FULL_GL
284 #define FEATURE_NV_fragment_program _HAVE_FULL_GL
285 #define FEATURE_NV_vertex_program _HAVE_FULL_GL
286 #define FEATURE_userclip _HAVE_FULL_GL
287 #define FEATURE_texgen _HAVE_FULL_GL
288 #define FEATURE_windowpos _HAVE_FULL_GL
289 #define FEATURE_ARB_vertex_shader _HAVE_FULL_GL
290 #define FEATURE_ARB_fragment_shader _HAVE_FULL_GL
291 #define FEATURE_ARB_shader_objects (FEATURE_ARB_vertex_shader || FEATURE_ARB_fragment_shader)
297 * Maximum number of temporary vertices required for clipping.
299 * Used in array_cache and tnl modules.
301 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
304 #endif /* CONFIG_H */