1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/* $Id: config.h,v 1.21 2000/10/28 20:41:13 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Tunable configuration parameters.
*/
#ifndef CONFIG_H
#define CONFIG_H
#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif
/*
* OpenGL implementation limits
*/
/* Maximum modelview matrix stack depth: */
#define MAX_MODELVIEW_STACK_DEPTH 32
/* Maximum projection matrix stack depth: */
#define MAX_PROJECTION_STACK_DEPTH 32
/* Maximum texture matrix stack depth: */
#define MAX_TEXTURE_STACK_DEPTH 10
/* Maximum color matrix stack depth: */
#define MAX_COLOR_STACK_DEPTH 4
/* Maximum attribute stack depth: */
#define MAX_ATTRIB_STACK_DEPTH 16
/* Maximum client attribute stack depth: */
#define MAX_CLIENT_ATTRIB_STACK_DEPTH 16
/* Maximum recursion depth of display list calls: */
#define MAX_LIST_NESTING 64
/* Maximum number of lights: */
#define MAX_LIGHTS 8
/* Maximum user-defined clipping planes: */
#define MAX_CLIP_PLANES 6
/* Maximum pixel map lookup table size: */
#define MAX_PIXEL_MAP_TABLE 256
/* Number of auxillary color buffers: */
#define NUM_AUX_BUFFERS 0
/* Maximum order (degree) of curves: */
#ifdef AMIGA
# define MAX_EVAL_ORDER 12
#else
# define MAX_EVAL_ORDER 30
#endif
/* Maximum Name stack depth */
#define MAX_NAME_STACK_DEPTH 64
/* Min and Max point sizes and granularity */
#define MIN_POINT_SIZE 1.0
#define MAX_POINT_SIZE 10.0
#define POINT_SIZE_GRANULARITY 0.1
/* Min and Max line widths and granularity */
#define MIN_LINE_WIDTH 1.0
#define MAX_LINE_WIDTH 10.0
#define LINE_WIDTH_GRANULARITY 0.1
/* Max texture palette / color table size */
#define MAX_COLOR_TABLE_SIZE 256
/* Number of texture levels */
#define MAX_TEXTURE_LEVELS 12
/* Number of texture units - GL_ARB_multitexture */
#define MAX_TEXTURE_UNITS 3
/* Maximum viewport/image size: */
#define MAX_WIDTH 2048
#define MAX_HEIGHT 1200
/* Maxmimum size for CVA. May be overridden by the drivers. */
#define MAX_ARRAY_LOCK_SIZE 3000
/* Subpixel precision for antialiasing, window coordinate snapping */
#define SUB_PIXEL_BITS 4
/* Size of histogram tables */
#define HISTOGRAM_TABLE_SIZE 256
/* Max convolution filter sizes */
#define MAX_CONVOLUTION_WIDTH 9
#define MAX_CONVOLUTION_HEIGHT 9
/* GL_ARB_texture_compression */
#define MAX_COMPRESSED_TEXTURE_FORMATS 25
/*
* Mesa-specific parameters
*/
/*
* Bits per accumulation buffer color component: 8 or 16
*/
#define ACCUM_BITS 16
/*
* Bits per depth buffer value. Any reasonable value up to 31 will
* work. 32 doesn't work because of integer overflow problems in the
* rasterizer code.
*/
#define DEFAULT_SOFTWARE_DEPTH_BITS 16
#if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
#define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
#else
#define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
#endif
/*
* Bits per stencil value: 8
*/
#define STENCIL_BITS 8
/*
* Bits per color channel (must be 8 at this time!)
*/
#define CHAN_BITS 8
#if CHAN_BITS == 8
typedef GLubyte GLchan;
#define CHAN_MAX 255
#define CHAN_MAXF 255.0F
#elif CHAN_BITS == 16
typedef GLushort GLchan;
#define CHAN_MAX 65535
#define CHAN_MAXF 65535.0F
#elif CHAN_BITS == 32
typedef GLfloat GLchan;
#define CHAN_MAX 1.0
#define CHAN_MAXF 1.0F
#else
#error illegal number of color channel bits
#endif
/*
* Color channel component order
* (changes will almost certainly cause problems at this time)
*/
#define RCOMP 0
#define GCOMP 1
#define BCOMP 2
#define ACOMP 3
/* Vertex buffer size. KW: no restrictions on the divisibility of
* this number, though things may go better for you if you choose a
* value of 12n + 3.
*/
#define VB_START 3
#define VB_MAX (216 + VB_START)
/*
* Actual vertex buffer size.
*
* Arrays must also accomodate new vertices from clipping, and
* potential overflow from primitives which don't fit into neatly into
* VB_MAX vertices. (This only happens when mixed primitives are
* sharing the vb).
*/
#define VB_MAX_CLIPPED_VERTS ((2 * (6 + MAX_CLIP_PLANES))+1)
#define VB_SIZE (VB_MAX + VB_MAX_CLIPPED_VERTS)
typedef struct __GLcontextRec GLcontext;
extern void
gl_read_config_file(GLcontext *ctx);
extern void
gl_register_config_var(const char *name, void (*notify)( const char *, int ));
#endif
|
