config.h revision 894844a8d956a0ee5f95836331dc318f49fdb845 
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 * \name Separate numbers of texture coordinates and texture image units.
121 *
122 * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
123 * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
124 * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
125 */
126/*@{*/
127#define MAX_TEXTURE_COORD_UNITS 8
128#define MAX_TEXTURE_IMAGE_UNITS 8
129/*@}*/
130
131/**
132 * Maximum viewport/image width. Must accomodate all texture sizes too.
133 */
134#define MAX_WIDTH 4096
135/** Maximum viewport/image height */
136#define MAX_HEIGHT 4096
137
138/** Maxmimum size for CVA.  May be overridden by the drivers.  */
139#define MAX_ARRAY_LOCK_SIZE 3000
140
141/** Subpixel precision for antialiasing, window coordinate snapping */
142#define SUB_PIXEL_BITS 4
143
144/** Size of histogram tables */
145#define HISTOGRAM_TABLE_SIZE 256
146
147/** Max convolution filter width */
148#define MAX_CONVOLUTION_WIDTH 9
149/** Max convolution filter height */
150#define MAX_CONVOLUTION_HEIGHT 9
151
152/** For GL_ARB_texture_compression */
153#define MAX_COMPRESSED_TEXTURE_FORMATS 25
154
155/** For GL_EXT_texture_filter_anisotropic */
156#define MAX_TEXTURE_MAX_ANISOTROPY 16.0
157
158/** For GL_EXT_texture_lod_bias */
159#define MAX_TEXTURE_LOD_BIAS 4.0
160
161/** For GL_NV_vertex_program */
162/*@{*/
163#define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
164#define MAX_NV_VERTEX_PROGRAM_TEMPS         12
165#define MAX_NV_VERTEX_PROGRAM_PARAMS        96
166#define MAX_NV_VERTEX_PROGRAM_INPUTS        16
167#define MAX_NV_VERTEX_PROGRAM_OUTPUTS       15
168/*@}*/
169
170/** For GL_NV_fragment_program */
171/*@{*/
172#define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 128
173#define MAX_NV_FRAGMENT_PROGRAM_TEMPS         96
174#define MAX_NV_FRAGMENT_PROGRAM_PARAMS        64
175#define MAX_NV_FRAGMENT_PROGRAM_INPUTS        12
176#define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS        3
177#define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS    2
178/*@}*/
179
180/** For GL_ARB_vertex_program */
181/*@{*/
182#define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
183#define MAX_VERTEX_PROGRAM_ATTRIBS     16
184/*@}*/
185
186/** For GL_ARB_fragment_program */
187/*@{*/
188#define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 1
189#define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
190#define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
191#define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS  4
192/*@}*/
193
194/** For any program target/extension */
195/*@{*/
196#define MAX_PROGRAM_LOCAL_PARAMS 96
197#define MAX_PROGRAM_MATRICES 8
198#define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
199/*@}*/
200
201/*@}*/
202
203
204/**
205 * \name Mesa-specific parameters
206 */
207/*@{*/
208
209
210/**
211 * If non-zero use GLdouble for walking triangle edges, for better accuracy.
212 */
213#define TRIANGLE_WALK_DOUBLE 0
214
215/**
216 * Bits per accumulation buffer color component:  8, 16 or 32
217 */
218#define ACCUM_BITS 16
219
220/**
221 * Bits per depth buffer value.
222 *
223 * Any reasonable value up to 31 will work.  32 doesn't work because of integer
224 * overflow problems in the rasterizer code.
225 */
226#ifndef DEFAULT_SOFTWARE_DEPTH_BITS
227#define DEFAULT_SOFTWARE_DEPTH_BITS 16
228#endif
229/** Depth buffer data type */
230#if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
231#define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
232#else
233#define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
234#endif
235
236
237/**
238 * Bits per stencil value: 8
239 */
240#define STENCIL_BITS 8
241
242
243/**
244 * Bits per color channel:  8, 16 or 32
245 */
246#ifndef CHAN_BITS
247#define CHAN_BITS 8
248#endif
249
250
251/*
252 * Color channel component order
253 *
254 * \note Changes will almost certainly cause problems at this time.
255 */
256#define RCOMP 0
257#define GCOMP 1
258#define BCOMP 2
259#define ACOMP 3
260
261
262/*
263 * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
264 */
265#ifndef _HAVE_FULL_GL
266#define _HAVE_FULL_GL 1
267#endif
268
269#define FEATURE_ARB_vertex_buffer_object  _HAVE_FULL_GL
270#define FEATURE_ARB_vertex_program  _HAVE_FULL_GL
271#define FEATURE_ARB_fragment_program  _HAVE_FULL_GL
272#define FEATURE_ARB_occlusion_query  _HAVE_FULL_GL
273#define FEATURE_EXT_pixel_buffer_object  _HAVE_FULL_GL
274#define FEATURE_MESA_program_debug  _HAVE_FULL_GL
275#define FEATURE_NV_fence  _HAVE_FULL_GL
276#define FEATURE_NV_fragment_program  _HAVE_FULL_GL
277#define FEATURE_NV_vertex_program  _HAVE_FULL_GL
278#define FEATURE_userclip  _HAVE_FULL_GL
279#define FEATURE_texgen  _HAVE_FULL_GL
280#define FEATURE_windowpos  _HAVE_FULL_GL
281
282/*@}*/
283
284
285#endif /* CONFIG_H */
286