config.h revision efb41b07ff213735e8ea08f38a7799f9d80459fc 
1/**
2 * \file config.h
3 * Tunable configuration parameters.
4 */
5
6/*
7 * Mesa 3-D graphics library
8 * Version:  6.1
9 *
10 * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
11 *
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:
18 *
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
21 *
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.
28 */
29
30
31#ifndef CONFIG_H
32#define CONFIG_H
33
34#ifdef HAVE_CONFIG_H
35#include "conf.h"
36#endif
37
38
39/**
40 * \name OpenGL implementation limits
41 */
42/*@{*/
43
44/** Maximum modelview matrix stack depth */
45#define MAX_MODELVIEW_STACK_DEPTH 32
46
47/** Maximum projection matrix stack depth */
48#define MAX_PROJECTION_STACK_DEPTH 32
49
50/** Maximum texture matrix stack depth */
51#define MAX_TEXTURE_STACK_DEPTH 10
52
53/** Maximum color matrix stack depth */
54#define MAX_COLOR_STACK_DEPTH 4
55
56/** Maximum attribute stack depth */
57#define MAX_ATTRIB_STACK_DEPTH 16
58
59/** Maximum client attribute stack depth */
60#define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
61
62/** Maximum recursion depth of display list calls */
63#define MAX_LIST_NESTING 64
64
65/** Maximum number of lights */
66#define MAX_LIGHTS 8
67
68/** Maximum user-defined clipping planes */
69#define MAX_CLIP_PLANES 6
70
71/** Maximum pixel map lookup table size */
72#define MAX_PIXEL_MAP_TABLE 256
73
74/** Maximum Number of auxillary color buffers */
75#define MAX_AUX_BUFFERS 4
76
77/** Maximum order (degree) of curves */
78#ifdef AMIGA
79#   define MAX_EVAL_ORDER 12
80#else
81#   define MAX_EVAL_ORDER 30
82#endif
83
84/** Maximum Name stack depth */
85#define MAX_NAME_STACK_DEPTH 64
86
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
93
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
100
101/** Max texture palette / color table size */
102#define MAX_COLOR_TABLE_SIZE 256
103
104/** Number of 1D/2D texture mipmap levels */
105#define MAX_TEXTURE_LEVELS 12
106
107/** Number of 3D texture mipmap levels */
108#define MAX_3D_TEXTURE_LEVELS 9
109
110/** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */
111#define MAX_CUBE_TEXTURE_LEVELS 12
112
113/** Maximum rectangular texture size - GL_NV_texture_rectangle */
114#define MAX_TEXTURE_RECT_SIZE 2048
115
116/** Number of texture units - GL_ARB_multitexture */
117#define MAX_TEXTURE_UNITS 8
118
119/*@}*/
120
121
122/**
123 * \name Separate numbers of texture coordinates and texture image units.
124 *
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.
128 */
129/*@{*/
130#define MAX_TEXTURE_COORD_UNITS 8
131#define MAX_TEXTURE_IMAGE_UNITS 8
132/*@}*/
133
134/**
135 * Maximum viewport/image width. Must accomodate all texture sizes too.
136 */
137#define MAX_WIDTH 4096
138/** Maximum viewport/image height */
139#define MAX_HEIGHT 4096
140
141/** Maxmimum size for CVA.  May be overridden by the drivers.  */
142#define MAX_ARRAY_LOCK_SIZE 3000
143
144/** Subpixel precision for antialiasing, window coordinate snapping */
145#define SUB_PIXEL_BITS 4
146
147/** Size of histogram tables */
148#define HISTOGRAM_TABLE_SIZE 256
149
150/** Max convolution filter width */
151#define MAX_CONVOLUTION_WIDTH 9
152/** Max convolution filter height */
153#define MAX_CONVOLUTION_HEIGHT 9
154
155/** For GL_ARB_texture_compression */
156#define MAX_COMPRESSED_TEXTURE_FORMATS 25
157
158/** For GL_EXT_texture_filter_anisotropic */
159#define MAX_TEXTURE_MAX_ANISOTROPY 16.0
160
161/** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */
162#define MAX_TEXTURE_LOD_BIAS 11.0
163
164/** For GL_NV_vertex_program */
165/*@{*/
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
171/*@}*/
172
173/** For GL_NV_fragment_program */
174/*@{*/
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
181/*@}*/
182
183/** For GL_ARB_vertex_program */
184/*@{*/
185#define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
186#define MAX_VERTEX_PROGRAM_ATTRIBS     16
187/*@}*/
188
189/** For GL_ARB_fragment_program */
190/*@{*/
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
195/*@}*/
196
197/** For any program target/extension */
198/*@{*/
199#define MAX_PROGRAM_LOCAL_PARAMS 96
200#define MAX_PROGRAM_MATRICES 8
201#define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
202/*@}*/
203
204/** For GL_ARB_fragment_shader */
205/*@{*/
206#define MAX_FRAGMENT_UNIFORM_COMPONENTS 64
207/*@}*/
208
209/** For GL_ARB_vertex_shader */
210/*@{*/
211#define MAX_VERTEX_UNIFORM_COMPONENTS 512
212#define MAX_VARYING_FLOATS 32
213#define MAX_VERTEX_TEXTURE_IMAGE_UNITS 0
214#define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_TEXTURE_IMAGE_UNITS + MAX_VERTEX_TEXTURE_IMAGE_UNITS)
215/*@}*/
216
217
218/** For GL_ARB_draw_buffers */
219/*@{*/
220#define MAX_DRAW_BUFFERS 1
221/*@}*/
222
223
224/** For GL_EXT_framebuffer_object */
225/*@{*/
226#define MAX_COLOR_ATTACHMENTS 4
227/*@}*/
228
229
230
231/**
232 * \name Mesa-specific parameters
233 */
234/*@{*/
235
236
237/**
238 * If non-zero use GLdouble for walking triangle edges, for better accuracy.
239 */
240#define TRIANGLE_WALK_DOUBLE 0
241
242/**
243 * Bits per accumulation buffer color component:  8, 16 or 32
244 */
245#define ACCUM_BITS 16
246
247/**
248 * Bits per depth buffer value.
249 *
250 * Any reasonable value up to 31 will work.  32 doesn't work because of integer
251 * overflow problems in the rasterizer code.
252 */
253#ifndef DEFAULT_SOFTWARE_DEPTH_BITS
254#define DEFAULT_SOFTWARE_DEPTH_BITS 16
255#endif
256/** Depth buffer data type */
257#if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
258#define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
259#else
260#define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
261#endif
262
263
264/**
265 * Bits per stencil value: 8
266 */
267#define STENCIL_BITS 8
268
269
270/**
271 * Bits per color channel:  8, 16 or 32
272 */
273#ifndef CHAN_BITS
274#define CHAN_BITS 8
275#endif
276
277
278/*
279 * Color channel component order
280 *
281 * \note Changes will almost certainly cause problems at this time.
282 */
283#define RCOMP 0
284#define GCOMP 1
285#define BCOMP 2
286#define ACOMP 3
287
288
289/*
290 * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
291 */
292#ifndef _HAVE_FULL_GL
293#define _HAVE_FULL_GL 1
294#endif
295
296#define FEATURE_ARB_vertex_buffer_object  _HAVE_FULL_GL
297#define FEATURE_ARB_vertex_program  _HAVE_FULL_GL
298#define FEATURE_ARB_fragment_program  _HAVE_FULL_GL
299#define FEATURE_ARB_occlusion_query  _HAVE_FULL_GL
300#define FEATURE_EXT_pixel_buffer_object  _HAVE_FULL_GL
301#define FEATURE_MESA_program_debug  _HAVE_FULL_GL
302#define FEATURE_NV_fence  _HAVE_FULL_GL
303#define FEATURE_NV_fragment_program  _HAVE_FULL_GL
304#define FEATURE_NV_vertex_program  _HAVE_FULL_GL
305#define FEATURE_userclip  _HAVE_FULL_GL
306#define FEATURE_texgen  _HAVE_FULL_GL
307#define FEATURE_windowpos  _HAVE_FULL_GL
308#define FEATURE_ARB_vertex_shader _HAVE_FULL_GL
309#define FEATURE_ARB_fragment_shader _HAVE_FULL_GL
310#define FEATURE_ARB_shader_objects (FEATURE_ARB_vertex_shader || FEATURE_ARB_fragment_shader)
311#define FEATURE_ARB_shading_language_100 FEATURE_ARB_shader_objects
312#define FEATURE_ATI_fragment_shader _HAVE_FULL_GL
313#define FEATURE_EXT_framebuffer_object _HAVE_FULL_GL
314/*@}*/
315
316
317/**
318 * Maximum number of temporary vertices required for clipping.
319 *
320 * Used in array_cache and tnl modules.
321 */
322#define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
323
324
325#endif /* CONFIG_H */
326