3 * Tunable configuration parameters.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2005 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.
35 * \name OpenGL implementation limits
39 /** Maximum modelview matrix stack depth */
40 #define MAX_MODELVIEW_STACK_DEPTH 32
42 /** Maximum projection matrix stack depth */
43 #define MAX_PROJECTION_STACK_DEPTH 32
45 /** Maximum texture matrix stack depth */
46 #define MAX_TEXTURE_STACK_DEPTH 10
48 /** Maximum color matrix stack depth */
49 #define MAX_COLOR_STACK_DEPTH 4
51 /** Maximum attribute stack depth */
52 #define MAX_ATTRIB_STACK_DEPTH 16
54 /** Maximum client attribute stack depth */
55 #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
57 /** Maximum recursion depth of display list calls */
58 #define MAX_LIST_NESTING 64
60 /** Maximum number of lights */
63 /** Maximum user-defined clipping planes */
64 #define MAX_CLIP_PLANES 6
66 /** Maximum pixel map lookup table size */
67 #define MAX_PIXEL_MAP_TABLE 256
69 /** Maximum number of auxillary color buffers */
70 #define MAX_AUX_BUFFERS 4
72 /** Maximum order (degree) of curves */
74 # define MAX_EVAL_ORDER 12
76 # define MAX_EVAL_ORDER 30
79 /** Maximum Name stack depth */
80 #define MAX_NAME_STACK_DEPTH 64
82 /** Minimum point size */
83 #define MIN_POINT_SIZE 1.0
84 /** Maximum point size */
85 #define MAX_POINT_SIZE 20.0
86 /** Point size granularity */
87 #define POINT_SIZE_GRANULARITY 0.1
89 /** Minimum line width */
90 #define MIN_LINE_WIDTH 1.0
91 /** Maximum line width */
92 #define MAX_LINE_WIDTH 10.0
93 /** Line width granularity */
94 #define LINE_WIDTH_GRANULARITY 0.1
96 /** Max texture palette / color table size */
97 #define MAX_COLOR_TABLE_SIZE 256
99 /** Number of 1D/2D texture mipmap levels */
100 #define MAX_TEXTURE_LEVELS 12
102 /** Number of 3D texture mipmap levels */
103 #define MAX_3D_TEXTURE_LEVELS 9
105 /** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
106 #define MAX_CUBE_TEXTURE_LEVELS 12
108 /** Maximum rectangular texture size - GL_NV_texture_rectangle */
109 #define MAX_TEXTURE_RECT_SIZE 2048
111 /** Number of texture units - GL_ARB_multitexture */
112 #define MAX_TEXTURE_UNITS 8
118 * \name Separate numbers of texture coordinates and texture image units.
120 * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
121 * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
122 * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
125 #define MAX_TEXTURE_COORD_UNITS 8
126 #define MAX_TEXTURE_IMAGE_UNITS 8
130 * Maximum viewport/image width. Must accomodate all texture sizes too.
132 #define MAX_WIDTH 4096
133 /** Maximum viewport/image height */
134 #define MAX_HEIGHT 4096
136 /** Maxmimum size for CVA. May be overridden by the drivers. */
137 #define MAX_ARRAY_LOCK_SIZE 3000
139 /** Subpixel precision for antialiasing, window coordinate snapping */
140 #define SUB_PIXEL_BITS 4
142 /** Size of histogram tables */
143 #define HISTOGRAM_TABLE_SIZE 256
145 /** Max convolution filter width */
146 #define MAX_CONVOLUTION_WIDTH 9
147 /** Max convolution filter height */
148 #define MAX_CONVOLUTION_HEIGHT 9
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 11.0
159 /** For GL_NV_vertex_program */
161 #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
162 #define MAX_NV_VERTEX_PROGRAM_TEMPS 12
163 #define MAX_NV_VERTEX_PROGRAM_PARAMS 128 /* KW: power of two */
164 #define MAX_NV_VERTEX_PROGRAM_INPUTS 16
165 #define MAX_NV_VERTEX_PROGRAM_OUTPUTS 15
168 /** For GL_NV_fragment_program */
170 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 128
171 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96
172 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64
173 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12
174 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3
175 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2
178 /** For GL_ARB_vertex_program */
180 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
181 #define MAX_VERTEX_PROGRAM_ATTRIBS 16
184 /** For GL_ARB_fragment_program */
186 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0
187 #define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
188 #define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
189 #define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS 4
192 /** For any program target/extension */
194 #define MAX_PROGRAM_LOCAL_PARAMS 128 /* KW: power of two */
195 #define MAX_PROGRAM_MATRICES 8
196 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
199 /** For GL_ARB_fragment_shader */
201 #define MAX_FRAGMENT_UNIFORM_COMPONENTS 64
204 /** For GL_ARB_vertex_shader */
206 #define MAX_VERTEX_UNIFORM_COMPONENTS 512
207 #define MAX_VARYING_FLOATS 32
208 #define MAX_VERTEX_TEXTURE_IMAGE_UNITS 0
209 #define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_TEXTURE_IMAGE_UNITS + MAX_VERTEX_TEXTURE_IMAGE_UNITS)
213 /** For GL_ARB_draw_buffers */
215 #define MAX_DRAW_BUFFERS 1
219 /** For GL_EXT_framebuffer_object */
221 #define MAX_COLOR_ATTACHMENTS 8
227 * \name Mesa-specific parameters
233 * If non-zero use GLdouble for walking triangle edges, for better accuracy.
235 #define TRIANGLE_WALK_DOUBLE 0
239 * Bits per depth buffer value.
241 * Any reasonable value up to 31 will work. 32 doesn't work because of integer
242 * overflow problems in the rasterizer code.
244 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
245 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
247 /** Depth buffer data type */
248 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
249 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
251 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
256 * Bits per stencil value: 8
258 #define STENCIL_BITS 8
262 * Bits per color channel: 8, 16 or 32
270 * Color channel component order
272 * \note Changes will almost certainly cause problems at this time.
281 * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
283 #ifndef _HAVE_FULL_GL
284 #define _HAVE_FULL_GL 1
287 #define FEATURE_ARB_vertex_buffer_object _HAVE_FULL_GL
288 #define FEATURE_ARB_vertex_program _HAVE_FULL_GL
289 #define FEATURE_ARB_fragment_program _HAVE_FULL_GL
290 #define FEATURE_ARB_occlusion_query _HAVE_FULL_GL
291 #define FEATURE_EXT_pixel_buffer_object _HAVE_FULL_GL
292 #define FEATURE_MESA_program_debug _HAVE_FULL_GL
293 #define FEATURE_NV_fence _HAVE_FULL_GL
294 #define FEATURE_NV_fragment_program _HAVE_FULL_GL
295 #define FEATURE_NV_vertex_program _HAVE_FULL_GL
296 #define FEATURE_userclip _HAVE_FULL_GL
297 #define FEATURE_texgen _HAVE_FULL_GL
298 #define FEATURE_windowpos _HAVE_FULL_GL
299 #define FEATURE_ARB_vertex_shader _HAVE_FULL_GL
300 #define FEATURE_ARB_fragment_shader _HAVE_FULL_GL
301 #define FEATURE_ARB_shader_objects (FEATURE_ARB_vertex_shader || FEATURE_ARB_fragment_shader)
302 #define FEATURE_ARB_shading_language_100 FEATURE_ARB_shader_objects
303 #define FEATURE_ATI_fragment_shader _HAVE_FULL_GL
304 #define FEATURE_EXT_framebuffer_object _HAVE_FULL_GL
305 #define FEATURE_EXT_framebuffer_blit _HAVE_FULL_GL
310 * Maximum number of temporary vertices required for clipping.
312 * Used in array_cache and tnl modules.
314 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
317 #endif /* CONFIG_H */