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mesa: Remove EXT_convolution.
[mesa.git] / src / mesa / main / extensions.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.6
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 #include "glheader.h"
28 #include "imports.h"
29 #include "context.h"
30 #include "extensions.h"
31 #include "mtypes.h"
32
33
34 #define F(x) offsetof(struct gl_extensions, x)
35 #define ON GL_TRUE
36 #define OFF GL_FALSE
37
38
39 /*
40 * Note: The GL_MESAX_* extensions are placeholders for future ARB extensions.
41 */
42 static const struct {
43 GLboolean enabled;
44 const char *name;
45 int flag_offset;
46 } default_extensions[] = {
47 { OFF, "GL_ARB_blend_func_extended", F(ARB_blend_func_extended) },
48 { OFF, "GL_ARB_copy_buffer", F(ARB_copy_buffer) },
49 { OFF, "GL_ARB_depth_buffer_float", F(ARB_depth_buffer_float) },
50 { OFF, "GL_ARB_depth_clamp", F(ARB_depth_clamp) },
51 { OFF, "GL_ARB_depth_texture", F(ARB_depth_texture) },
52 { ON, "GL_ARB_draw_buffers", F(ARB_draw_buffers) },
53 { OFF, "GL_ARB_draw_elements_base_vertex", F(ARB_draw_elements_base_vertex) },
54 { OFF, "GL_ARB_draw_instanced", F(ARB_draw_instanced) },
55 { OFF, "GL_ARB_fragment_coord_conventions", F(ARB_fragment_coord_conventions) },
56 { OFF, "GL_ARB_fragment_program", F(ARB_fragment_program) },
57 { OFF, "GL_ARB_fragment_program_shadow", F(ARB_fragment_program_shadow) },
58 { OFF, "GL_ARB_fragment_shader", F(ARB_fragment_shader) },
59 { OFF, "GL_ARB_framebuffer_object", F(ARB_framebuffer_object) },
60 { OFF, "GL_ARB_explicit_attrib_location", F(ARB_explicit_attrib_location) },
61 /* TODO: reenable this when the new GLSL compiler actually supports them */
62 /* { OFF, "GL_ARB_geometry_shader4", F(ARB_geometry_shader4) }, */
63 { OFF, "GL_ARB_half_float_pixel", F(ARB_half_float_pixel) },
64 { OFF, "GL_ARB_half_float_vertex", F(ARB_half_float_vertex) },
65 { OFF, "GL_ARB_instanced_arrays", F(ARB_instanced_arrays) },
66 { OFF, "GL_ARB_map_buffer_range", F(ARB_map_buffer_range) },
67 { ON, "GL_ARB_multisample", F(ARB_multisample) },
68 { OFF, "GL_ARB_multitexture", F(ARB_multitexture) },
69 { OFF, "GL_ARB_occlusion_query", F(ARB_occlusion_query) },
70 { OFF, "GL_ARB_occlusion_query2", F(ARB_occlusion_query2) },
71 { OFF, "GL_ARB_pixel_buffer_object", F(EXT_pixel_buffer_object) },
72 { OFF, "GL_ARB_point_parameters", F(EXT_point_parameters) },
73 { OFF, "GL_ARB_point_sprite", F(ARB_point_sprite) },
74 { OFF, "GL_ARB_provoking_vertex", F(EXT_provoking_vertex) },
75 { OFF, "GL_ARB_sampler_objects", F(ARB_sampler_objects) },
76 { OFF, "GL_ARB_seamless_cube_map", F(ARB_seamless_cube_map) },
77 { OFF, "GL_ARB_shader_objects", F(ARB_shader_objects) },
78 { OFF, "GL_ARB_shading_language_100", F(ARB_shading_language_100) },
79 { OFF, "GL_ARB_shadow", F(ARB_shadow) },
80 { OFF, "GL_ARB_shadow_ambient", F(ARB_shadow_ambient) },
81 { OFF, "GL_ARB_sync", F(ARB_sync) },
82 { OFF, "GL_ARB_texture_border_clamp", F(ARB_texture_border_clamp) },
83 { OFF, "GL_ARB_texture_buffer_object", F(ARB_texture_buffer_object) },
84 { ON, "GL_ARB_texture_compression", F(ARB_texture_compression) },
85 { OFF, "GL_ARB_texture_cube_map", F(ARB_texture_cube_map) },
86 { OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) },
87 { OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) },
88 { OFF, "GL_ARB_texture_env_crossbar", F(ARB_texture_env_crossbar) },
89 { OFF, "GL_ARB_texture_env_dot3", F(ARB_texture_env_dot3) },
90 { OFF, "GL_MESAX_texture_float", F(ARB_texture_float) },
91 { OFF, "GL_ARB_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)},
92 { OFF, "GL_ARB_texture_multisample", F(ARB_texture_multisample) },
93 { OFF, "GL_ARB_texture_non_power_of_two", F(ARB_texture_non_power_of_two)},
94 { OFF, "GL_ARB_texture_rectangle", F(NV_texture_rectangle) },
95 { OFF, "GL_ARB_texture_rg", F(ARB_texture_rg) },
96 { OFF, "GL_ARB_texture_rgb10_a2ui", F(ARB_texture_rgb10_a2ui) },
97 { OFF, "GL_ARB_texture_swizzle", F(EXT_texture_swizzle) },
98 { ON, "GL_ARB_transpose_matrix", F(ARB_transpose_matrix) },
99 { OFF, "GL_ARB_transform_feedback2", F(ARB_transform_feedback2) },
100 { OFF, "GL_ARB_uniform_buffer_object", F(ARB_uniform_buffer_object) },
101 { OFF, "GL_ARB_vertex_array_bgra", F(EXT_vertex_array_bgra) },
102 { OFF, "GL_ARB_vertex_array_object", F(ARB_vertex_array_object) },
103 { ON, "GL_ARB_vertex_buffer_object", F(ARB_vertex_buffer_object) },
104 { OFF, "GL_ARB_vertex_program", F(ARB_vertex_program) },
105 { OFF, "GL_ARB_vertex_shader", F(ARB_vertex_shader) },
106 { OFF, "GL_ARB_vertex_type_2_10_10_10_rev", F(ARB_vertex_type_2_10_10_10_rev) },
107 { ON, "GL_ARB_window_pos", F(ARB_window_pos) },
108 { ON, "GL_EXT_abgr", F(EXT_abgr) },
109 { ON, "GL_EXT_bgra", F(EXT_bgra) },
110 { OFF, "GL_EXT_blend_color", F(EXT_blend_color) },
111 { OFF, "GL_EXT_blend_equation_separate", F(EXT_blend_equation_separate) },
112 { OFF, "GL_EXT_blend_func_separate", F(EXT_blend_func_separate) },
113 { OFF, "GL_EXT_blend_logic_op", F(EXT_blend_logic_op) },
114 { OFF, "GL_EXT_blend_minmax", F(EXT_blend_minmax) },
115 { OFF, "GL_EXT_blend_subtract", F(EXT_blend_subtract) },
116 { OFF, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) },
117 { OFF, "GL_EXT_cull_vertex", F(EXT_cull_vertex) },
118 { ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
119 { ON, "GL_EXT_copy_texture", F(EXT_copy_texture) },
120 { OFF, "GL_EXT_depth_bounds_test", F(EXT_depth_bounds_test) },
121 { OFF, "GL_EXT_draw_buffers2", F(EXT_draw_buffers2) },
122 { OFF, "GL_EXT_draw_instanced", F(ARB_draw_instanced) },
123 { ON, "GL_EXT_draw_range_elements", F(EXT_draw_range_elements) },
124 { OFF, "GL_EXT_framebuffer_blit", F(EXT_framebuffer_blit) },
125 { OFF, "GL_EXT_framebuffer_multisample", F(EXT_framebuffer_multisample) },
126 { OFF, "GL_EXT_framebuffer_object", F(EXT_framebuffer_object) },
127 { OFF, "GL_EXT_framebuffer_sRGB", F(EXT_framebuffer_sRGB) },
128 { OFF, "GL_EXT_fog_coord", F(EXT_fog_coord) },
129 { OFF, "GL_EXT_gpu_program_parameters", F(EXT_gpu_program_parameters) },
130 { ON, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
131 { OFF, "GL_EXT_packed_depth_stencil", F(EXT_packed_depth_stencil) },
132 { OFF, "GL_EXT_packed_float", F(EXT_packed_float) },
133 { ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) },
134 { OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) },
135 { OFF, "GL_EXT_pixel_buffer_object", F(EXT_pixel_buffer_object) },
136 { OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) },
137 { ON, "GL_EXT_polygon_offset", F(EXT_polygon_offset) },
138 { OFF, "GL_EXT_provoking_vertex", F(EXT_provoking_vertex) },
139 { ON, "GL_EXT_rescale_normal", F(EXT_rescale_normal) },
140 { OFF, "GL_EXT_secondary_color", F(EXT_secondary_color) },
141 { ON, "GL_EXT_separate_specular_color", F(EXT_separate_specular_color) },
142 { OFF, "GL_EXT_shadow_funcs", F(EXT_shadow_funcs) },
143 { OFF, "GL_EXT_shared_texture_palette", F(EXT_shared_texture_palette) },
144 { OFF, "GL_EXT_stencil_two_side", F(EXT_stencil_two_side) },
145 { OFF, "GL_EXT_stencil_wrap", F(EXT_stencil_wrap) },
146 { ON, "GL_EXT_subtexture", F(EXT_subtexture) },
147 { ON, "GL_EXT_texture", F(EXT_texture) },
148 { ON, "GL_EXT_texture3D", F(EXT_texture3D) },
149 { OFF, "GL_EXT_texture_array", F(EXT_texture_array) },
150 { OFF, "GL_EXT_texture_compression_s3tc", F(EXT_texture_compression_s3tc) },
151 { OFF, "GL_EXT_texture_compression_rgtc", F(EXT_texture_compression_rgtc) },
152 { OFF, "GL_EXT_texture_cube_map", F(ARB_texture_cube_map) },
153 { ON, "GL_EXT_texture_edge_clamp", F(SGIS_texture_edge_clamp) },
154 { OFF, "GL_EXT_texture_env_add", F(EXT_texture_env_add) },
155 { OFF, "GL_EXT_texture_env_combine", F(EXT_texture_env_combine) },
156 { OFF, "GL_EXT_texture_env_dot3", F(EXT_texture_env_dot3) },
157 { OFF, "GL_EXT_texture_filter_anisotropic", F(EXT_texture_filter_anisotropic) },
158 { OFF, "GL_EXT_texture_integer", F(EXT_texture_integer) },
159 { OFF, "GL_EXT_texture_lod_bias", F(EXT_texture_lod_bias) },
160 { OFF, "GL_EXT_texture_mirror_clamp", F(EXT_texture_mirror_clamp) },
161 { ON, "GL_EXT_texture_object", F(EXT_texture_object) },
162 { OFF, "GL_EXT_texture_rectangle", F(NV_texture_rectangle) },
163 { OFF, "GL_EXT_texture_shared_exponent", F(EXT_texture_shared_exponent) },
164 { OFF, "GL_EXT_texture_sRGB", F(EXT_texture_sRGB) },
165 { OFF, "GL_EXT_texture_swizzle", F(EXT_texture_swizzle) },
166 { OFF, "GL_EXT_timer_query", F(EXT_timer_query) },
167 { OFF, "GL_EXT_transform_feedback", F(EXT_transform_feedback) },
168 { ON, "GL_EXT_vertex_array", F(EXT_vertex_array) },
169 { OFF, "GL_EXT_vertex_array_bgra", F(EXT_vertex_array_bgra) },
170 { OFF, "GL_EXT_vertex_array_set", F(EXT_vertex_array_set) },
171 { OFF, "GL_3DFX_texture_compression_FXT1", F(TDFX_texture_compression_FXT1) },
172 { OFF, "GL_APPLE_client_storage", F(APPLE_client_storage) },
173 { ON, "GL_APPLE_packed_pixels", F(APPLE_packed_pixels) },
174 { OFF, "GL_APPLE_vertex_array_object", F(APPLE_vertex_array_object) },
175 { OFF, "GL_APPLE_object_purgeable", F(APPLE_object_purgeable) },
176 { OFF, "GL_ATI_blend_equation_separate", F(EXT_blend_equation_separate) },
177 { OFF, "GL_ATI_envmap_bumpmap", F(ATI_envmap_bumpmap) },
178 { OFF, "GL_ATI_texture_env_combine3", F(ATI_texture_env_combine3)},
179 { OFF, "GL_ATI_texture_mirror_once", F(ATI_texture_mirror_once)},
180 { OFF, "GL_ATI_fragment_shader", F(ATI_fragment_shader)},
181 { OFF, "GL_ATI_separate_stencil", F(ATI_separate_stencil)},
182 { ON, "GL_IBM_multimode_draw_arrays", F(IBM_multimode_draw_arrays) },
183 { ON, "GL_IBM_rasterpos_clip", F(IBM_rasterpos_clip) },
184 { OFF, "GL_IBM_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)},
185 { OFF, "GL_INGR_blend_func_separate", F(EXT_blend_func_separate) },
186 { OFF, "GL_MESA_pack_invert", F(MESA_pack_invert) },
187 { OFF, "GL_MESA_packed_depth_stencil", F(MESA_packed_depth_stencil) },
188 { OFF, "GL_MESA_resize_buffers", F(MESA_resize_buffers) },
189 { OFF, "GL_MESA_texture_array", F(MESA_texture_array) },
190 { OFF, "GL_MESA_texture_signed_rgba", F(MESA_texture_signed_rgba) },
191 { OFF, "GL_MESA_ycbcr_texture", F(MESA_ycbcr_texture) },
192 { ON, "GL_MESA_window_pos", F(ARB_window_pos) },
193 { OFF, "GL_NV_blend_square", F(NV_blend_square) },
194 { OFF, "GL_NV_conditional_render", F(NV_conditional_render) },
195 { OFF, "GL_NV_depth_clamp", F(ARB_depth_clamp) },
196 { OFF, "GL_NV_fragment_program", F(NV_fragment_program) },
197 { OFF, "GL_NV_fragment_program_option", F(NV_fragment_program_option) },
198 { ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) },
199 { OFF, "GL_NV_packed_depth_stencil", F(EXT_packed_depth_stencil) },
200 { OFF, "GL_NV_point_sprite", F(NV_point_sprite) },
201 { OFF, "GL_NV_primitive_restart", F(NV_primitive_restart) },
202 { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) },
203 { OFF, "GL_NV_texture_env_combine4", F(NV_texture_env_combine4) },
204 { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) },
205 { OFF, "GL_NV_vertex_program", F(NV_vertex_program) },
206 { OFF, "GL_NV_vertex_program1_1", F(NV_vertex_program1_1) },
207 { ON, "GL_OES_read_format", F(OES_read_format) },
208 { OFF, "GL_SGI_texture_color_table", F(SGI_texture_color_table) },
209 { OFF, "GL_SGIS_generate_mipmap", F(SGIS_generate_mipmap) },
210 { OFF, "GL_SGIS_texture_border_clamp", F(ARB_texture_border_clamp) },
211 { ON, "GL_SGIS_texture_edge_clamp", F(SGIS_texture_edge_clamp) },
212 { ON, "GL_SGIS_texture_lod", F(SGIS_texture_lod) },
213 { ON, "GL_SUN_multi_draw_arrays", F(EXT_multi_draw_arrays) },
214 { OFF, "GL_S3_s3tc", F(S3_s3tc) },
215 #if FEATURE_OES_EGL_image
216 { OFF, "GL_OES_EGL_image", F(OES_EGL_image) },
217 #endif
218 #if FEATURE_OES_draw_texture
219 { OFF, "GL_OES_draw_texture", F(OES_draw_texture) },
220 #endif /* FEATURE_OES_draw_texture */
221 };
222
223
224
225 /**
226 * Enable all extensions suitable for a software-only renderer.
227 * This is a convenience function used by the XMesa, OSMesa, GGI drivers, etc.
228 */
229 void
230 _mesa_enable_sw_extensions(GLcontext *ctx)
231 {
232 ctx->Extensions.ARB_copy_buffer = GL_TRUE;
233 ctx->Extensions.ARB_depth_clamp = GL_TRUE;
234 ctx->Extensions.ARB_depth_texture = GL_TRUE;
235 /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
236 ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
237 ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
238 #if FEATURE_ARB_fragment_program
239 ctx->Extensions.ARB_fragment_program = GL_TRUE;
240 ctx->Extensions.ARB_fragment_program_shadow = GL_TRUE;
241 #endif
242 #if FEATURE_ARB_fragment_shader
243 ctx->Extensions.ARB_fragment_shader = GL_TRUE;
244 #endif
245 #if FEATURE_ARB_framebuffer_object
246 ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
247 #endif
248 #if FEATURE_ARB_geometry_shader4
249 ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
250 #endif
251 ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
252 ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
253 ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
254 ctx->Extensions.ARB_multitexture = GL_TRUE;
255 #if FEATURE_queryobj
256 ctx->Extensions.ARB_occlusion_query = GL_TRUE;
257 #endif
258 ctx->Extensions.ARB_point_sprite = GL_TRUE;
259 #if FEATURE_ARB_shader_objects
260 ctx->Extensions.ARB_shader_objects = GL_TRUE;
261 #endif
262 #if FEATURE_ARB_shading_language_100
263 ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
264 #endif
265 ctx->Extensions.ARB_shadow = GL_TRUE;
266 ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
267 ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
268 ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
269 ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
270 ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
271 ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
272 /*ctx->Extensions.ARB_texture_float = GL_TRUE;*/
273 ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
274 ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
275 ctx->Extensions.ARB_vertex_array_object = GL_TRUE;
276 #if FEATURE_ARB_vertex_program
277 ctx->Extensions.ARB_vertex_program = GL_TRUE;
278 #endif
279 #if FEATURE_ARB_vertex_shader
280 ctx->Extensions.ARB_vertex_shader = GL_TRUE;
281 #endif
282 #if FEATURE_ARB_vertex_buffer_object
283 /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
284 #endif
285 #if FEATURE_ARB_sync
286 ctx->Extensions.ARB_sync = GL_TRUE;
287 #endif
288 ctx->Extensions.APPLE_vertex_array_object = GL_TRUE;
289 #if FEATURE_APPLE_object_purgeable
290 ctx->Extensions.APPLE_object_purgeable = GL_TRUE;
291 #endif
292 ctx->Extensions.ATI_envmap_bumpmap = GL_TRUE;
293 #if FEATURE_ATI_fragment_shader
294 ctx->Extensions.ATI_fragment_shader = GL_TRUE;
295 #endif
296 ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
297 ctx->Extensions.ATI_texture_mirror_once = GL_TRUE;
298 ctx->Extensions.ATI_separate_stencil = GL_TRUE;
299 ctx->Extensions.EXT_blend_color = GL_TRUE;
300 ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
301 ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
302 ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
303 ctx->Extensions.EXT_blend_minmax = GL_TRUE;
304 ctx->Extensions.EXT_blend_subtract = GL_TRUE;
305 ctx->Extensions.EXT_depth_bounds_test = GL_TRUE;
306 ctx->Extensions.EXT_draw_buffers2 = GL_TRUE;
307 ctx->Extensions.EXT_fog_coord = GL_TRUE;
308 #if FEATURE_EXT_framebuffer_object
309 ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
310 #endif
311 #if FEATURE_EXT_framebuffer_blit
312 ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
313 #endif
314 #if FEATURE_ARB_framebuffer_object
315 ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
316 #endif
317 /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
318 ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
319 ctx->Extensions.EXT_paletted_texture = GL_TRUE;
320 #if FEATURE_EXT_pixel_buffer_object
321 ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
322 #endif
323 ctx->Extensions.EXT_point_parameters = GL_TRUE;
324 ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
325 ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
326 ctx->Extensions.EXT_secondary_color = GL_TRUE;
327 ctx->Extensions.EXT_shared_texture_palette = GL_TRUE;
328 ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
329 ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
330 ctx->Extensions.EXT_texture_array = GL_TRUE;
331 ctx->Extensions.EXT_texture_env_add = GL_TRUE;
332 ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
333 ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
334 ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
335 ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
336 #if FEATURE_EXT_texture_sRGB
337 ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
338 #endif
339 ctx->Extensions.EXT_texture_swizzle = GL_TRUE;
340 #if FEATURE_EXT_transform_feedback
341 /*ctx->Extensions.EXT_transform_feedback = GL_TRUE;*/
342 #endif
343 ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
344 /*ctx->Extensions.IBM_multimode_draw_arrays = GL_TRUE;*/
345 ctx->Extensions.MESA_pack_invert = GL_TRUE;
346 ctx->Extensions.MESA_resize_buffers = GL_TRUE;
347 ctx->Extensions.MESA_texture_array = GL_TRUE;
348 ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
349 ctx->Extensions.NV_blend_square = GL_TRUE;
350 ctx->Extensions.NV_conditional_render = GL_TRUE;
351 /*ctx->Extensions.NV_light_max_exponent = GL_TRUE;*/
352 ctx->Extensions.NV_point_sprite = GL_TRUE;
353 ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
354 ctx->Extensions.NV_texture_rectangle = GL_TRUE;
355 /*ctx->Extensions.NV_texgen_reflection = GL_TRUE;*/
356 #if FEATURE_NV_vertex_program
357 ctx->Extensions.NV_vertex_program = GL_TRUE;
358 ctx->Extensions.NV_vertex_program1_1 = GL_TRUE;
359 #endif
360 #if FEATURE_NV_fragment_program
361 ctx->Extensions.NV_fragment_program = GL_TRUE;
362 #endif
363 #if FEATURE_NV_fragment_program && FEATURE_ARB_fragment_program
364 ctx->Extensions.NV_fragment_program_option = GL_TRUE;
365 #endif
366 ctx->Extensions.SGI_texture_color_table = GL_TRUE;
367 ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
368 ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
369 #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
370 ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
371 #endif
372 #if FEATURE_texture_fxt1
373 _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1");
374 #endif
375 #if FEATURE_texture_s3tc
376 if (ctx->Mesa_DXTn) {
377 _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
378 _mesa_enable_extension(ctx, "GL_S3_s3tc");
379 }
380 #endif
381 }
382
383
384 /**
385 * Enable common EXT extensions in the ARB_imaging subset.
386 */
387 void
388 _mesa_enable_imaging_extensions(GLcontext *ctx)
389 {
390 ctx->Extensions.EXT_blend_color = GL_TRUE;
391 ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
392 ctx->Extensions.EXT_blend_minmax = GL_TRUE;
393 ctx->Extensions.EXT_blend_subtract = GL_TRUE;
394 }
395
396
397
398 /**
399 * Enable all OpenGL 1.3 features and extensions.
400 * A convenience function to be called by drivers.
401 */
402 void
403 _mesa_enable_1_3_extensions(GLcontext *ctx)
404 {
405 /*ctx->Extensions.ARB_multisample = GL_TRUE;*/
406 ctx->Extensions.ARB_multitexture = GL_TRUE;
407 ctx->Extensions.ARB_texture_border_clamp = GL_TRUE;
408 /*ctx->Extensions.ARB_texture_compression = GL_TRUE;*/
409 ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
410 ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
411 ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
412 ctx->Extensions.EXT_texture_env_add = GL_TRUE;
413 /*ctx->Extensions.ARB_transpose_matrix = GL_TRUE;*/
414 }
415
416
417
418 /**
419 * Enable all OpenGL 1.4 features and extensions.
420 * A convenience function to be called by drivers.
421 */
422 void
423 _mesa_enable_1_4_extensions(GLcontext *ctx)
424 {
425 ctx->Extensions.ARB_depth_texture = GL_TRUE;
426 ctx->Extensions.ARB_shadow = GL_TRUE;
427 ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
428 ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
429 ctx->Extensions.ARB_window_pos = GL_TRUE;
430 ctx->Extensions.EXT_blend_color = GL_TRUE;
431 ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
432 ctx->Extensions.EXT_blend_minmax = GL_TRUE;
433 ctx->Extensions.EXT_blend_subtract = GL_TRUE;
434 ctx->Extensions.EXT_fog_coord = GL_TRUE;
435 /*ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;*/
436 ctx->Extensions.EXT_point_parameters = GL_TRUE;
437 ctx->Extensions.EXT_secondary_color = GL_TRUE;
438 ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
439 ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
440 ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
441 }
442
443
444 /**
445 * Enable all OpenGL 1.5 features and extensions.
446 * A convenience function to be called by drivers.
447 */
448 void
449 _mesa_enable_1_5_extensions(GLcontext *ctx)
450 {
451 ctx->Extensions.ARB_occlusion_query = GL_TRUE;
452 /*ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;*/
453 ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
454 }
455
456
457 /**
458 * Enable all OpenGL 2.0 features and extensions.
459 * A convenience function to be called by drivers.
460 */
461 void
462 _mesa_enable_2_0_extensions(GLcontext *ctx)
463 {
464 /*ctx->Extensions.ARB_draw_buffers = GL_TRUE;*/
465 #if FEATURE_ARB_fragment_shader
466 ctx->Extensions.ARB_fragment_shader = GL_TRUE;
467 #endif
468 ctx->Extensions.ARB_point_sprite = GL_TRUE;
469 ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
470 ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
471 #if FEATURE_ARB_shader_objects
472 ctx->Extensions.ARB_shader_objects = GL_TRUE;
473 #endif
474 #if FEATURE_ARB_shading_language_100
475 ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
476 #endif
477 ctx->Extensions.EXT_stencil_two_side = GL_TRUE;
478 #if FEATURE_ARB_vertex_shader
479 ctx->Extensions.ARB_vertex_shader = GL_TRUE;
480 #endif
481 }
482
483
484 /**
485 * Enable all OpenGL 2.1 features and extensions.
486 * A convenience function to be called by drivers.
487 */
488 void
489 _mesa_enable_2_1_extensions(GLcontext *ctx)
490 {
491 #if FEATURE_EXT_pixel_buffer_object
492 ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
493 #endif
494 #if FEATURE_EXT_texture_sRGB
495 ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
496 #endif
497 }
498
499
500 /**
501 * Either enable or disable the named extension.
502 * \return GL_TRUE for success, GL_FALSE if invalid extension name
503 */
504 static GLboolean
505 set_extension( GLcontext *ctx, const char *name, GLboolean state )
506 {
507 GLboolean *base = (GLboolean *) &ctx->Extensions;
508 GLuint i;
509
510 if (ctx->Extensions.String) {
511 /* The string was already queried - can't change it now! */
512 _mesa_problem(ctx, "Trying to enable/disable extension after glGetString(GL_EXTENSIONS): %s", name);
513 return GL_FALSE;
514 }
515
516 for (i = 0 ; i < Elements(default_extensions) ; i++) {
517 if (strcmp(default_extensions[i].name, name) == 0) {
518 if (default_extensions[i].flag_offset) {
519 GLboolean *enabled = base + default_extensions[i].flag_offset;
520 *enabled = state;
521 }
522 return GL_TRUE;
523 }
524 }
525 return GL_FALSE;
526 }
527
528
529 /**
530 * Enable the named extension.
531 * Typically called by drivers.
532 */
533 void
534 _mesa_enable_extension( GLcontext *ctx, const char *name )
535 {
536 if (!set_extension(ctx, name, GL_TRUE))
537 _mesa_problem(ctx, "Trying to enable unknown extension: %s", name);
538 }
539
540
541 /**
542 * Disable the named extension.
543 * XXX is this really needed???
544 */
545 void
546 _mesa_disable_extension( GLcontext *ctx, const char *name )
547 {
548 if (!set_extension(ctx, name, GL_FALSE))
549 _mesa_problem(ctx, "Trying to disable unknown extension: %s", name);
550 }
551
552
553 /**
554 * Check if the i-th extension is enabled.
555 */
556 static GLboolean
557 extension_enabled(GLcontext *ctx, GLuint index)
558 {
559 const GLboolean *base = (const GLboolean *) &ctx->Extensions;
560 if (!default_extensions[index].flag_offset ||
561 *(base + default_extensions[index].flag_offset)) {
562 return GL_TRUE;
563 }
564 else {
565 return GL_FALSE;
566 }
567 }
568
569
570 /**
571 * Test if the named extension is enabled in this context.
572 */
573 GLboolean
574 _mesa_extension_is_enabled( GLcontext *ctx, const char *name )
575 {
576 GLuint i;
577
578 for (i = 0 ; i < Elements(default_extensions) ; i++) {
579 if (strcmp(default_extensions[i].name, name) == 0) {
580 return extension_enabled(ctx, i);
581 }
582 }
583 return GL_FALSE;
584 }
585
586
587 /**
588 * Append string 'b' onto string 'a'. Free 'a' and return new string.
589 */
590 static char *
591 append(const char *a, const char *b)
592 {
593 const GLuint aLen = a ? strlen(a) : 0;
594 const GLuint bLen = b ? strlen(b) : 0;
595 char *s = calloc(1, aLen + bLen + 1);
596 if (s) {
597 if (a)
598 memcpy(s, a, aLen);
599 if (b)
600 memcpy(s + aLen, b, bLen);
601 s[aLen + bLen] = '\0';
602 }
603 if (a)
604 free((void *) a);
605 return s;
606 }
607
608
609 /**
610 * Check the MESA_EXTENSION_OVERRIDE env var.
611 * For extension names that are recognized, turn them on. For extension
612 * names that are recognized and prefixed with '-', turn them off.
613 * Return a string of the unknown/leftover names.
614 */
615 static const char *
616 get_extension_override( GLcontext *ctx )
617 {
618 const char *envExt = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
619 char *extraExt = NULL;
620 char ext[1000];
621 GLuint extLen = 0;
622 GLuint i;
623 GLboolean disableExt = GL_FALSE;
624
625 if (!envExt)
626 return NULL;
627
628 for (i = 0; ; i++) {
629 if (envExt[i] == '\0' || envExt[i] == ' ') {
630 /* terminate/process 'ext' if extLen > 0 */
631 if (extLen > 0) {
632 assert(extLen < sizeof(ext));
633 /* enable extension named by 'ext' */
634 ext[extLen] = 0;
635 if (!set_extension(ctx, ext, !disableExt)) {
636 /* unknown extension name, append it to extraExt */
637 if (extraExt) {
638 extraExt = append(extraExt, " ");
639 }
640 extraExt = append(extraExt, ext);
641 }
642 extLen = 0;
643 disableExt = GL_FALSE;
644 }
645 if (envExt[i] == '\0')
646 break;
647 }
648 else if (envExt[i] == '-') {
649 disableExt = GL_TRUE;
650 }
651 else {
652 /* accumulate this non-space character */
653 ext[extLen++] = envExt[i];
654 }
655 }
656
657 return extraExt;
658 }
659
660
661 /**
662 * Run through the default_extensions array above and set the
663 * ctx->Extensions.ARB/EXT_* flags accordingly.
664 * To be called during context initialization.
665 */
666 void
667 _mesa_init_extensions( GLcontext *ctx )
668 {
669 GLboolean *base = (GLboolean *) &ctx->Extensions;
670 GLuint i;
671
672 for (i = 0 ; i < Elements(default_extensions) ; i++) {
673 if (default_extensions[i].enabled &&
674 default_extensions[i].flag_offset) {
675 *(base + default_extensions[i].flag_offset) = GL_TRUE;
676 }
677 }
678 }
679
680
681 /**
682 * Construct the GL_EXTENSIONS string. Called the first time that
683 * glGetString(GL_EXTENSIONS) is called.
684 */
685 static GLubyte *
686 compute_extensions( GLcontext *ctx )
687 {
688 const char *extraExt = get_extension_override(ctx);
689 GLuint extStrLen = 0;
690 char *s;
691 GLuint i;
692
693 /* first, compute length of the extension string */
694 for (i = 0 ; i < Elements(default_extensions) ; i++) {
695 if (extension_enabled(ctx, i)) {
696 extStrLen += (GLuint) strlen(default_extensions[i].name) + 1;
697 }
698 }
699
700 if (extraExt)
701 extStrLen += strlen(extraExt) + 1; /* +1 for space */
702
703 /* allocate the extension string */
704 s = (char *) malloc(extStrLen);
705 if (!s)
706 return NULL;
707
708 /* second, build the extension string */
709 extStrLen = 0;
710 for (i = 0 ; i < Elements(default_extensions) ; i++) {
711 if (extension_enabled(ctx, i)) {
712 GLuint len = (GLuint) strlen(default_extensions[i].name);
713 memcpy(s + extStrLen, default_extensions[i].name, len);
714 extStrLen += len;
715 s[extStrLen] = ' ';
716 extStrLen++;
717 }
718 }
719 ASSERT(extStrLen > 0);
720
721 s[extStrLen - 1] = 0; /* -1 to overwrite trailing the ' ' */
722
723 if (extraExt) {
724 s = append(s, " ");
725 s = append(s, extraExt);
726 }
727
728 return (GLubyte *) s;
729 }
730
731 static size_t
732 append_extension(GLubyte **str, const char *ext)
733 {
734 GLubyte *s = *str;
735 size_t len = strlen(ext);
736
737 if (s) {
738 memcpy(s, ext, len);
739 s[len++] = ' ';
740 s[len] = '\0';
741
742 *str += len;
743 }
744 else {
745 len++;
746 }
747
748 return len;
749 }
750
751
752 static size_t
753 make_extension_string_es1(const GLcontext *ctx, GLubyte *str)
754 {
755 size_t len = 0;
756
757 /* Core additions */
758 len += append_extension(&str, "GL_OES_byte_coordinates");
759 len += append_extension(&str, "GL_OES_fixed_point");
760 len += append_extension(&str, "GL_OES_single_precision");
761 len += append_extension(&str, "GL_OES_matrix_get");
762
763 /* 1.1 required extensions */
764 len += append_extension(&str, "GL_OES_read_format");
765 len += append_extension(&str, "GL_OES_compressed_paletted_texture");
766 len += append_extension(&str, "GL_OES_point_size_array");
767 len += append_extension(&str, "GL_OES_point_sprite");
768
769 /* 1.1 deprecated extensions */
770 len += append_extension(&str, "GL_OES_query_matrix");
771
772 #if FEATURE_OES_draw_texture
773 if (ctx->Extensions.OES_draw_texture)
774 len += append_extension(&str, "GL_OES_draw_texture");
775 #endif
776
777 if (ctx->Extensions.EXT_blend_equation_separate)
778 len += append_extension(&str, "GL_OES_blend_equation_separate");
779 if (ctx->Extensions.EXT_blend_func_separate)
780 len += append_extension(&str, "GL_OES_blend_func_separate");
781 if (ctx->Extensions.EXT_blend_subtract)
782 len += append_extension(&str, "GL_OES_blend_subtract");
783
784 if (ctx->Extensions.EXT_stencil_wrap)
785 len += append_extension(&str, "GL_OES_stencil_wrap");
786
787 if (ctx->Extensions.ARB_texture_cube_map)
788 len += append_extension(&str, "GL_OES_texture_cube_map");
789 if (ctx->Extensions.ARB_texture_env_crossbar)
790 len += append_extension(&str, "GL_OES_texture_env_crossbar");
791 if (ctx->Extensions.ARB_texture_mirrored_repeat)
792 len += append_extension(&str, "GL_OES_texture_mirrored_repeat");
793
794 if (ctx->Extensions.ARB_framebuffer_object) {
795 len += append_extension(&str, "GL_OES_framebuffer_object");
796 len += append_extension(&str, "GL_OES_depth24");
797 len += append_extension(&str, "GL_OES_depth32");
798 len += append_extension(&str, "GL_OES_fbo_render_mipmap");
799 len += append_extension(&str, "GL_OES_rgb8_rgba8");
800 len += append_extension(&str, "GL_OES_stencil1");
801 len += append_extension(&str, "GL_OES_stencil4");
802 len += append_extension(&str, "GL_OES_stencil8");
803 }
804
805 if (ctx->Extensions.EXT_vertex_array)
806 len += append_extension(&str, "GL_OES_element_index_uint");
807 if (ctx->Extensions.ARB_vertex_buffer_object)
808 len += append_extension(&str, "GL_OES_mapbuffer");
809 if (ctx->Extensions.EXT_texture_filter_anisotropic)
810 len += append_extension(&str, "GL_EXT_texture_filter_anisotropic");
811
812 /* some applications check this for NPOT support */
813 if (ctx->Extensions.ARB_texture_non_power_of_two)
814 len += append_extension(&str, "GL_ARB_texture_non_power_of_two");
815
816 if (ctx->Extensions.EXT_texture_compression_s3tc)
817 len += append_extension(&str, "GL_EXT_texture_compression_dxt1");
818 if (ctx->Extensions.EXT_texture_lod_bias)
819 len += append_extension(&str, "GL_EXT_texture_lod_bias");
820 if (ctx->Extensions.EXT_blend_minmax)
821 len += append_extension(&str, "GL_EXT_blend_minmax");
822 if (ctx->Extensions.EXT_multi_draw_arrays)
823 len += append_extension(&str, "GL_EXT_multi_draw_arrays");
824
825 #if FEATURE_OES_EGL_image
826 if (ctx->Extensions.OES_EGL_image)
827 len += append_extension(&str, "GL_OES_EGL_image");
828 #endif
829
830 return len;
831 }
832
833
834 static GLubyte *
835 compute_extensions_es1(const GLcontext *ctx)
836 {
837 GLubyte *s;
838 unsigned int len;
839
840 len = make_extension_string_es1(ctx, NULL);
841 s = malloc(len + 1);
842 if (!s)
843 return NULL;
844 make_extension_string_es1(ctx, s);
845
846 return s;
847 }
848
849 static size_t
850 make_extension_string_es2(const GLcontext *ctx, GLubyte *str)
851 {
852 size_t len = 0;
853
854 len += append_extension(&str, "GL_OES_compressed_paletted_texture");
855
856 if (ctx->Extensions.ARB_framebuffer_object) {
857 len += append_extension(&str, "GL_OES_depth24");
858 len += append_extension(&str, "GL_OES_depth32");
859 len += append_extension(&str, "GL_OES_fbo_render_mipmap");
860 len += append_extension(&str, "GL_OES_rgb8_rgba8");
861 len += append_extension(&str, "GL_OES_stencil1");
862 len += append_extension(&str, "GL_OES_stencil4");
863 }
864
865 if (ctx->Extensions.EXT_vertex_array)
866 len += append_extension(&str, "GL_OES_element_index_uint");
867 if (ctx->Extensions.ARB_vertex_buffer_object)
868 len += append_extension(&str, "GL_OES_mapbuffer");
869
870 if (ctx->Extensions.EXT_texture3D)
871 len += append_extension(&str, "GL_OES_texture_3D");
872 if (ctx->Extensions.ARB_texture_non_power_of_two)
873 len += append_extension(&str, "GL_OES_texture_npot");
874 if (ctx->Extensions.EXT_texture_filter_anisotropic)
875 len += append_extension(&str, "GL_EXT_texture_filter_anisotropic");
876
877 len += append_extension(&str, "GL_EXT_texture_type_2_10_10_10_REV");
878 if (ctx->Extensions.ARB_depth_texture)
879 len += append_extension(&str, "GL_OES_depth_texture");
880 if (ctx->Extensions.EXT_packed_depth_stencil)
881 len += append_extension(&str, "GL_OES_packed_depth_stencil");
882 if (ctx->Extensions.ARB_fragment_shader)
883 len += append_extension(&str, "GL_OES_standard_derivatives");
884
885 if (ctx->Extensions.EXT_texture_compression_s3tc)
886 len += append_extension(&str, "GL_EXT_texture_compression_dxt1");
887 if (ctx->Extensions.EXT_blend_minmax)
888 len += append_extension(&str, "GL_EXT_blend_minmax");
889 if (ctx->Extensions.EXT_multi_draw_arrays)
890 len += append_extension(&str, "GL_EXT_multi_draw_arrays");
891
892 #if FEATURE_OES_EGL_image
893 if (ctx->Extensions.OES_EGL_image)
894 len += append_extension(&str, "GL_OES_EGL_image");
895 #endif
896
897 return len;
898 }
899
900 static GLubyte *
901 compute_extensions_es2(GLcontext *ctx)
902 {
903 GLubyte *s;
904 unsigned int len;
905
906 len = make_extension_string_es2(ctx, NULL);
907 s = malloc(len + 1);
908 if (!s)
909 return NULL;
910 make_extension_string_es2(ctx, s);
911
912 return s;
913 }
914
915
916 GLubyte *
917 _mesa_make_extension_string(GLcontext *ctx)
918 {
919 switch (ctx->API) {
920 case API_OPENGL:
921 return compute_extensions(ctx);
922 case API_OPENGLES2:
923 return compute_extensions_es2(ctx);
924 case API_OPENGLES:
925 return compute_extensions_es1(ctx);
926 default:
927 assert(0);
928 return NULL;
929 }
930 }
931
932 /**
933 * Return number of enabled extensions.
934 */
935 GLuint
936 _mesa_get_extension_count(GLcontext *ctx)
937 {
938 GLuint i;
939
940 /* only count once */
941 if (!ctx->Extensions.Count) {
942 for (i = 0; i < Elements(default_extensions); i++) {
943 if (extension_enabled(ctx, i)) {
944 ctx->Extensions.Count++;
945 }
946 }
947 }
948
949 if (0)
950 _mesa_debug(ctx, "%u of %d extensions enabled\n", ctx->Extensions.Count,
951 (int) Elements(default_extensions));
952
953 return ctx->Extensions.Count;
954 }
955
956
957 /**
958 * Return name of i-th enabled extension
959 */
960 const GLubyte *
961 _mesa_get_enabled_extension(GLcontext *ctx, GLuint index)
962 {
963 GLuint i;
964
965 for (i = 0; i < Elements(default_extensions); i++) {
966 if (extension_enabled(ctx, i)) {
967 if (index == 0)
968 return (const GLubyte *) default_extensions[i].name;
969 index--;
970 }
971 }
972
973 return NULL;
974 }