3 * Tunable configuration parameters.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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13 * copy of this software and associated documentation files (the "Software"),
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19 * The above copyright notice and this permission notice shall be included
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24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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31 #ifndef MESA_CONFIG_H_INCLUDED
32 #define MESA_CONFIG_H_INCLUDED
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 60.0
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 /** Maximum number of layers in a 1D or 2D array texture - GL_MESA_texture_array */
112 #define MAX_ARRAY_TEXTURE_LAYERS 64
114 /** Number of texture units - GL_ARB_multitexture
115 * This needs to be the larger of MAX_TEXTURE_COORD_UNITS and
116 * MAX_TEXTURE_IMAGE_UNITS seen below, since MAX_TEXTURE_UNITS is used
117 * to dimension some arrays that store both coord and image data.
119 #define MAX_TEXTURE_UNITS 8
125 * \name Separate numbers of texture coordinates and texture image units.
127 * These values will eventually replace most instances of MAX_TEXTURE_UNITS.
128 * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS.
129 * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS.
132 #define MAX_TEXTURE_COORD_UNITS 8
133 #define MAX_TEXTURE_IMAGE_UNITS 8
137 * Maximum viewport/image width. Must accomodate all texture sizes too.
139 #define MAX_WIDTH 4096
140 /** Maximum viewport/image height */
141 #define MAX_HEIGHT 4096
143 /** Maxmimum size for CVA. May be overridden by the drivers. */
144 #define MAX_ARRAY_LOCK_SIZE 3000
146 /** Subpixel precision for antialiasing, window coordinate snapping */
147 #define SUB_PIXEL_BITS 4
149 /** Size of histogram tables */
150 #define HISTOGRAM_TABLE_SIZE 256
152 /** Max convolution filter width */
153 #define MAX_CONVOLUTION_WIDTH 9
154 /** Max convolution filter height */
155 #define MAX_CONVOLUTION_HEIGHT 9
157 /** For GL_ARB_texture_compression */
158 #define MAX_COMPRESSED_TEXTURE_FORMATS 25
160 /** For GL_EXT_texture_filter_anisotropic */
161 #define MAX_TEXTURE_MAX_ANISOTROPY 16.0
163 /** For GL_EXT_texture_lod_bias (typically MAX_TEXTURE_LEVELS - 1) */
164 #define MAX_TEXTURE_LOD_BIAS 11.0
166 /** For GL_NV_vertex_program */
168 #define MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS 128
169 #define MAX_NV_VERTEX_PROGRAM_TEMPS 12
170 #define MAX_NV_VERTEX_PROGRAM_PARAMS 128 /* KW: power of two */
171 #define MAX_NV_VERTEX_PROGRAM_INPUTS 16
172 #define MAX_NV_VERTEX_PROGRAM_OUTPUTS 15
175 /** For GL_NV_fragment_program */
177 #define MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS 1024 /* 72 for GL_ARB_f_p */
178 #define MAX_NV_FRAGMENT_PROGRAM_TEMPS 96
179 #define MAX_NV_FRAGMENT_PROGRAM_PARAMS 64
180 #define MAX_NV_FRAGMENT_PROGRAM_INPUTS 12
181 #define MAX_NV_FRAGMENT_PROGRAM_OUTPUTS 3
182 #define MAX_NV_FRAGMENT_PROGRAM_WRITE_ONLYS 2
185 /** For GL_ARB_vertex_program */
187 #define MAX_VERTEX_PROGRAM_ADDRESS_REGS 1
188 #define MAX_VERTEX_PROGRAM_ATTRIBS 16
191 /** For GL_ARB_fragment_program */
193 #define MAX_FRAGMENT_PROGRAM_ADDRESS_REGS 0
194 #define MAX_FRAGMENT_PROGRAM_ALU_INSTRUCTIONS 48
195 #define MAX_FRAGMENT_PROGRAM_TEX_INSTRUCTIONS 24
196 #define MAX_FRAGMENT_PROGRAM_TEX_INDIRECTIONS 4
199 /** For any program target/extension */
201 #define MAX_PROGRAM_LOCAL_PARAMS 128 /* KW: power of two */
202 #define MAX_PROGRAM_ENV_PARAMS 128
203 #define MAX_PROGRAM_MATRICES 8
204 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4
205 #define MAX_PROGRAM_CALL_DEPTH 8
206 #define MAX_PROGRAM_TEMPS 128
207 #define MAX_PROGRAM_ADDRESS_REGS 2
208 #define MAX_UNIFORMS 128
209 #define MAX_VARYING 8
212 /** For GL_ARB_vertex_shader */
214 #define MAX_VERTEX_ATTRIBS 16
215 #define MAX_VERTEX_TEXTURE_IMAGE_UNITS 0
216 #define MAX_COMBINED_TEXTURE_IMAGE_UNITS (MAX_TEXTURE_IMAGE_UNITS + MAX_VERTEX_TEXTURE_IMAGE_UNITS)
220 /** For GL_ARB_draw_buffers */
222 #define MAX_DRAW_BUFFERS 4
226 /** For GL_EXT_framebuffer_object */
228 #define MAX_COLOR_ATTACHMENTS 8
234 * \name Mesa-specific parameters
240 * If non-zero use GLdouble for walking triangle edges, for better accuracy.
242 #define TRIANGLE_WALK_DOUBLE 0
246 * Bits per depth buffer value (max is 32).
248 #ifndef DEFAULT_SOFTWARE_DEPTH_BITS
249 #define DEFAULT_SOFTWARE_DEPTH_BITS 16
251 /** Depth buffer data type */
252 #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16
253 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort
255 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLuint
260 * Bits per stencil value: 8
262 #define STENCIL_BITS 8
266 * Bits per color channel: 8, 16 or 32
274 * Color channel component order
276 * \note Changes will almost certainly cause problems at this time.
285 * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1.
287 #ifndef _HAVE_FULL_GL
288 #define _HAVE_FULL_GL 1
291 #define FEATURE_userclip _HAVE_FULL_GL
292 #define FEATURE_texgen _HAVE_FULL_GL
293 #define FEATURE_windowpos _HAVE_FULL_GL
294 #define FEATURE_ARB_occlusion_query _HAVE_FULL_GL
295 #define FEATURE_ARB_fragment_program _HAVE_FULL_GL
296 #define FEATURE_ARB_vertex_buffer_object _HAVE_FULL_GL
297 #define FEATURE_ARB_vertex_program _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_ARB_shading_language_120 FEATURE_ARB_shader_objects
305 #define FEATURE_EXT_framebuffer_blit _HAVE_FULL_GL
306 #define FEATURE_EXT_framebuffer_object _HAVE_FULL_GL
307 #define FEATURE_EXT_pixel_buffer_object _HAVE_FULL_GL
308 #define FEATURE_EXT_texture_sRGB _HAVE_FULL_GL
309 #define FEATURE_EXT_timer_query _HAVE_FULL_GL
310 #define FEATURE_ATI_fragment_shader _HAVE_FULL_GL
311 #define FEATURE_MESA_program_debug _HAVE_FULL_GL
312 #define FEATURE_NV_fence _HAVE_FULL_GL
313 #define FEATURE_NV_fragment_program _HAVE_FULL_GL
314 #define FEATURE_NV_vertex_program _HAVE_FULL_GL
319 * Maximum number of temporary vertices required for clipping.
321 * Used in array_cache and tnl modules.
323 #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1)
326 #endif /* MESA_CONFIG_H_INCLUDED */