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st/mesa: expose ARB_indirect_parameters when the backend driver allows
[mesa.git] / src / mesa / state_tracker / st_extensions.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "main/imports.h"
30 #include "main/context.h"
31 #include "main/macros.h"
32 #include "main/version.h"
33
34 #include "pipe/p_context.h"
35 #include "pipe/p_defines.h"
36 #include "pipe/p_screen.h"
37 #include "util/u_math.h"
38
39 #include "st_context.h"
40 #include "st_extensions.h"
41 #include "st_format.h"
42
43
44 /*
45 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
46 * avoid evaluating arguments (which are often function calls) more than once.
47 */
48
49 static unsigned _min(unsigned a, unsigned b)
50 {
51 return (a < b) ? a : b;
52 }
53
54 static float _maxf(float a, float b)
55 {
56 return (a > b) ? a : b;
57 }
58
59 static int _clamp(int a, int min, int max)
60 {
61 if (a < min)
62 return min;
63 else if (a > max)
64 return max;
65 else
66 return a;
67 }
68
69
70 /**
71 * Query driver to get implementation limits.
72 * Note that we have to limit/clamp against Mesa's internal limits too.
73 */
74 void st_init_limits(struct pipe_screen *screen,
75 struct gl_constants *c, struct gl_extensions *extensions)
76 {
77 unsigned sh;
78 boolean can_ubo = TRUE;
79
80 c->MaxTextureLevels
81 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
82 MAX_TEXTURE_LEVELS);
83
84 c->Max3DTextureLevels
85 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
86 MAX_3D_TEXTURE_LEVELS);
87
88 c->MaxCubeTextureLevels
89 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
90 MAX_CUBE_TEXTURE_LEVELS);
91
92 c->MaxTextureRectSize
93 = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
94
95 c->MaxArrayTextureLayers
96 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
97
98 /* Define max viewport size and max renderbuffer size in terms of
99 * max texture size (note: max tex RECT size = max tex 2D size).
100 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
101 */
102 c->MaxViewportWidth =
103 c->MaxViewportHeight =
104 c->MaxRenderbufferSize = c->MaxTextureRectSize;
105
106 c->MaxDrawBuffers = c->MaxColorAttachments =
107 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
108 1, MAX_DRAW_BUFFERS);
109
110 c->MaxDualSourceDrawBuffers
111 = _clamp(screen->get_param(screen, PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
112 0, MAX_DRAW_BUFFERS);
113
114 c->MaxLineWidth
115 = _maxf(1.0f, screen->get_paramf(screen,
116 PIPE_CAPF_MAX_LINE_WIDTH));
117 c->MaxLineWidthAA
118 = _maxf(1.0f, screen->get_paramf(screen,
119 PIPE_CAPF_MAX_LINE_WIDTH_AA));
120
121 c->MaxPointSize
122 = _maxf(1.0f, screen->get_paramf(screen,
123 PIPE_CAPF_MAX_POINT_WIDTH));
124 c->MaxPointSizeAA
125 = _maxf(1.0f, screen->get_paramf(screen,
126 PIPE_CAPF_MAX_POINT_WIDTH_AA));
127
128 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
129 * for non-aa sizes, but we can go down to 0.0 for aa points.
130 */
131 c->MinPointSize = 1.0f;
132 c->MinPointSizeAA = 0.0f;
133
134 c->MaxTextureMaxAnisotropy
135 = _maxf(2.0f, screen->get_paramf(screen,
136 PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
137
138 c->MaxTextureLodBias
139 = screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
140
141 c->QuadsFollowProvokingVertexConvention = screen->get_param(
142 screen, PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
143
144 c->MaxUniformBlockSize =
145 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
146 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
147 if (c->MaxUniformBlockSize < 16384) {
148 can_ubo = FALSE;
149 }
150
151 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
152 struct gl_shader_compiler_options *options;
153 struct gl_program_constants *pc;
154
155 switch (sh) {
156 case PIPE_SHADER_FRAGMENT:
157 pc = &c->Program[MESA_SHADER_FRAGMENT];
158 options = &c->ShaderCompilerOptions[MESA_SHADER_FRAGMENT];
159 break;
160 case PIPE_SHADER_VERTEX:
161 pc = &c->Program[MESA_SHADER_VERTEX];
162 options = &c->ShaderCompilerOptions[MESA_SHADER_VERTEX];
163 break;
164 case PIPE_SHADER_GEOMETRY:
165 pc = &c->Program[MESA_SHADER_GEOMETRY];
166 options = &c->ShaderCompilerOptions[MESA_SHADER_GEOMETRY];
167 break;
168 case PIPE_SHADER_TESS_CTRL:
169 pc = &c->Program[MESA_SHADER_TESS_CTRL];
170 options = &c->ShaderCompilerOptions[MESA_SHADER_TESS_CTRL];
171 break;
172 case PIPE_SHADER_TESS_EVAL:
173 pc = &c->Program[MESA_SHADER_TESS_EVAL];
174 options = &c->ShaderCompilerOptions[MESA_SHADER_TESS_EVAL];
175 break;
176 default:
177 /* compute shader, etc. */
178 continue;
179 }
180
181 pc->MaxTextureImageUnits =
182 _min(screen->get_shader_param(screen, sh,
183 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
184 MAX_TEXTURE_IMAGE_UNITS);
185
186 pc->MaxInstructions = pc->MaxNativeInstructions =
187 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
188 pc->MaxAluInstructions = pc->MaxNativeAluInstructions =
189 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
190 pc->MaxTexInstructions = pc->MaxNativeTexInstructions =
191 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
192 pc->MaxTexIndirections = pc->MaxNativeTexIndirections =
193 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
194 pc->MaxAttribs = pc->MaxNativeAttribs =
195 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
196 pc->MaxTemps = pc->MaxNativeTemps =
197 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
198 pc->MaxAddressRegs = pc->MaxNativeAddressRegs =
199 sh == PIPE_SHADER_VERTEX ? 1 : 0;
200 pc->MaxParameters = pc->MaxNativeParameters =
201 screen->get_shader_param(screen, sh,
202 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / sizeof(float[4]);
203 pc->MaxInputComponents =
204 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
205 pc->MaxOutputComponents =
206 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
207
208 pc->MaxUniformComponents = 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
209
210 pc->MaxUniformBlocks =
211 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
212 if (pc->MaxUniformBlocks)
213 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
214 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
215
216 pc->MaxCombinedUniformComponents = (pc->MaxUniformComponents +
217 c->MaxUniformBlockSize / 4 *
218 pc->MaxUniformBlocks);
219
220 /* Gallium doesn't really care about local vs. env parameters so use the
221 * same limits.
222 */
223 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
224 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
225
226 options->EmitNoNoise = TRUE;
227
228 /* TODO: make these more fine-grained if anyone needs it */
229 options->MaxIfDepth = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
230 options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
231 options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
232 options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
233
234 options->EmitNoCont = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
235
236 options->EmitNoIndirectInput = !screen->get_shader_param(screen, sh,
237 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
238 options->EmitNoIndirectOutput = !screen->get_shader_param(screen, sh,
239 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
240 options->EmitNoIndirectTemp = !screen->get_shader_param(screen, sh,
241 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
242 options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
243 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
244
245 if (pc->MaxNativeInstructions &&
246 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
247 can_ubo = FALSE;
248 }
249
250 if (options->EmitNoLoops)
251 options->MaxUnrollIterations = MIN2(screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS), 65536);
252 else
253 options->MaxUnrollIterations = screen->get_shader_param(screen, sh,
254 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
255
256 options->LowerClipDistance = true;
257 options->LowerBufferInterfaceBlocks = true;
258 }
259
260 c->LowerTessLevel = true;
261
262 c->MaxCombinedTextureImageUnits =
263 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
264 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
265 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
266 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
267 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
268 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
269
270 /* This depends on program constants. */
271 c->MaxTextureCoordUnits
272 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits, MAX_TEXTURE_COORD_UNITS);
273
274 c->MaxTextureUnits = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits, c->MaxTextureCoordUnits);
275
276 c->Program[MESA_SHADER_VERTEX].MaxAttribs = MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
277
278 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
279 * of inputs. It's always 2 colors + N generic inputs. */
280 c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
281 PIPE_SHADER_CAP_MAX_INPUTS);
282 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
283 c->MaxGeometryOutputVertices = screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
284 c->MaxGeometryTotalOutputComponents = screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
285 c->MaxTessPatchComponents =
286 MAX2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
287 MAX_VARYING) * 4;
288
289 c->MinProgramTexelOffset = screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
290 c->MaxProgramTexelOffset = screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
291
292 c->MaxProgramTextureGatherComponents = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
293 c->MinProgramTextureGatherOffset = screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
294 c->MaxProgramTextureGatherOffset = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
295
296 c->MaxTransformFeedbackBuffers =
297 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
298 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers, MAX_FEEDBACK_BUFFERS);
299 c->MaxTransformFeedbackSeparateComponents =
300 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
301 c->MaxTransformFeedbackInterleavedComponents =
302 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
303 c->MaxVertexStreams =
304 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
305
306 /* The vertex stream must fit into pipe_stream_output_info::stream */
307 assert(c->MaxVertexStreams <= 4);
308
309 c->MaxVertexAttribStride
310 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
311
312 c->StripTextureBorder = GL_TRUE;
313
314 c->GLSLSkipStrictMaxUniformLimitCheck =
315 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
316
317 c->UniformBufferOffsetAlignment =
318 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
319
320 if (can_ubo) {
321 extensions->ARB_uniform_buffer_object = GL_TRUE;
322 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
323 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
324 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
325 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
326 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
327 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks;
328 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
329 }
330 }
331
332
333 /**
334 * Given a member \c x of struct gl_extensions, return offset of
335 * \c x in bytes.
336 */
337 #define o(x) offsetof(struct gl_extensions, x)
338
339
340 struct st_extension_cap_mapping {
341 int extension_offset;
342 int cap;
343 };
344
345 struct st_extension_format_mapping {
346 int extension_offset[2];
347 enum pipe_format format[32];
348
349 /* If TRUE, at least one format must be supported for the extensions to be
350 * advertised. If FALSE, all the formats must be supported. */
351 GLboolean need_at_least_one;
352 };
353
354 /**
355 * Enable extensions if certain pipe formats are supported by the driver.
356 * What extensions will be enabled and what formats must be supported is
357 * described by the array of st_extension_format_mapping.
358 *
359 * target and bind_flags are passed to is_format_supported.
360 */
361 static void
362 init_format_extensions(struct pipe_screen *screen,
363 struct gl_extensions *extensions,
364 const struct st_extension_format_mapping *mapping,
365 unsigned num_mappings,
366 enum pipe_texture_target target,
367 unsigned bind_flags)
368 {
369 GLboolean *extension_table = (GLboolean *) extensions;
370 unsigned i;
371 int j;
372 int num_formats = ARRAY_SIZE(mapping->format);
373 int num_ext = ARRAY_SIZE(mapping->extension_offset);
374
375 for (i = 0; i < num_mappings; i++) {
376 int num_supported = 0;
377
378 /* Examine each format in the list. */
379 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
380 if (screen->is_format_supported(screen, mapping[i].format[j],
381 target, 0, bind_flags)) {
382 num_supported++;
383 }
384 }
385
386 if (!num_supported ||
387 (!mapping[i].need_at_least_one && num_supported != j)) {
388 continue;
389 }
390
391 /* Enable all extensions in the list. */
392 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
393 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
394 }
395 }
396
397
398 /**
399 * Given a list of formats and bind flags, return the maximum number
400 * of samples supported by any of those formats.
401 */
402 static unsigned
403 get_max_samples_for_formats(struct pipe_screen *screen,
404 unsigned num_formats,
405 enum pipe_format *formats,
406 unsigned max_samples,
407 unsigned bind)
408 {
409 unsigned i, f;
410
411 for (i = max_samples; i > 0; --i) {
412 for (f = 0; f < num_formats; f++) {
413 if (screen->is_format_supported(screen, formats[f],
414 PIPE_TEXTURE_2D, i, bind)) {
415 return i;
416 }
417 }
418 }
419 return 0;
420 }
421
422
423 /**
424 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
425 * which GL extensions are supported.
426 * Quite a few extensions are always supported because they are standard
427 * features or can be built on top of other gallium features.
428 * Some fine tuning may still be needed.
429 */
430 void st_init_extensions(struct pipe_screen *screen,
431 struct gl_constants *consts,
432 struct gl_extensions *extensions,
433 struct st_config_options *options,
434 boolean has_lib_dxtc)
435 {
436 unsigned i;
437 int glsl_feature_level;
438 GLboolean *extension_table = (GLboolean *) extensions;
439
440 static const struct st_extension_cap_mapping cap_mapping[] = {
441 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
442 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
443 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
444 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
445 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
446 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
447 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
448 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
449 { o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP },
450 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
451 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
452 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
453 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
454 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
455 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
456 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
457 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
458 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
459 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
460 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
461 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
462 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
463 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
464 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
465 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
466 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
467 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
468 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
469 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
470 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
471 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
472 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
473 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
474 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
475 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
476 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
477 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
478 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
479 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
480
481 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
482 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
483 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
484 { o(EXT_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
485 { o(EXT_stencil_two_side), PIPE_CAP_TWO_SIDED_STENCIL },
486 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
487 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
488 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
489 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
490 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
491
492 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
493 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
494 { o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL },
495 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
496 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
497 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
498 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
499 /* GL_NV_point_sprite is not supported by gallium because we don't
500 * support the GL_POINT_SPRITE_R_MODE_NV option. */
501
502 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
503 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
504 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
505 };
506
507 /* Required: render target and sampler support */
508 static const struct st_extension_format_mapping rendertarget_mapping[] = {
509 { { o(ARB_texture_float) },
510 { PIPE_FORMAT_R32G32B32A32_FLOAT,
511 PIPE_FORMAT_R16G16B16A16_FLOAT } },
512
513 { { o(OES_texture_float) },
514 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
515
516 { { o(OES_texture_half_float) },
517 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
518
519 { { o(ARB_texture_rgb10_a2ui) },
520 { PIPE_FORMAT_R10G10B10A2_UINT,
521 PIPE_FORMAT_B10G10R10A2_UINT },
522 GL_TRUE }, /* at least one format must be supported */
523
524 { { o(EXT_framebuffer_sRGB) },
525 { PIPE_FORMAT_A8B8G8R8_SRGB,
526 PIPE_FORMAT_B8G8R8A8_SRGB },
527 GL_TRUE }, /* at least one format must be supported */
528
529 { { o(EXT_packed_float) },
530 { PIPE_FORMAT_R11G11B10_FLOAT } },
531
532 { { o(EXT_texture_integer) },
533 { PIPE_FORMAT_R32G32B32A32_UINT,
534 PIPE_FORMAT_R32G32B32A32_SINT } },
535
536 { { o(ARB_texture_rg) },
537 { PIPE_FORMAT_R8_UNORM,
538 PIPE_FORMAT_R8G8_UNORM } },
539 };
540
541 /* Required: depth stencil and sampler support */
542 static const struct st_extension_format_mapping depthstencil_mapping[] = {
543 { { o(ARB_depth_buffer_float) },
544 { PIPE_FORMAT_Z32_FLOAT,
545 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
546 };
547
548 /* Required: sampler support */
549 static const struct st_extension_format_mapping texture_mapping[] = {
550 { { o(ARB_texture_compression_rgtc) },
551 { PIPE_FORMAT_RGTC1_UNORM,
552 PIPE_FORMAT_RGTC1_SNORM,
553 PIPE_FORMAT_RGTC2_UNORM,
554 PIPE_FORMAT_RGTC2_SNORM } },
555
556 { { o(EXT_texture_compression_latc) },
557 { PIPE_FORMAT_LATC1_UNORM,
558 PIPE_FORMAT_LATC1_SNORM,
559 PIPE_FORMAT_LATC2_UNORM,
560 PIPE_FORMAT_LATC2_SNORM } },
561
562 { { o(EXT_texture_compression_s3tc),
563 o(ANGLE_texture_compression_dxt) },
564 { PIPE_FORMAT_DXT1_RGB,
565 PIPE_FORMAT_DXT1_RGBA,
566 PIPE_FORMAT_DXT3_RGBA,
567 PIPE_FORMAT_DXT5_RGBA } },
568
569 { { o(ARB_texture_compression_bptc) },
570 { PIPE_FORMAT_BPTC_RGBA_UNORM,
571 PIPE_FORMAT_BPTC_SRGBA,
572 PIPE_FORMAT_BPTC_RGB_FLOAT,
573 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
574
575 { { o(KHR_texture_compression_astc_ldr) },
576 { PIPE_FORMAT_ASTC_4x4,
577 PIPE_FORMAT_ASTC_5x4,
578 PIPE_FORMAT_ASTC_5x5,
579 PIPE_FORMAT_ASTC_6x5,
580 PIPE_FORMAT_ASTC_6x6,
581 PIPE_FORMAT_ASTC_8x5,
582 PIPE_FORMAT_ASTC_8x6,
583 PIPE_FORMAT_ASTC_8x8,
584 PIPE_FORMAT_ASTC_10x5,
585 PIPE_FORMAT_ASTC_10x6,
586 PIPE_FORMAT_ASTC_10x8,
587 PIPE_FORMAT_ASTC_10x10,
588 PIPE_FORMAT_ASTC_12x10,
589 PIPE_FORMAT_ASTC_12x12,
590 PIPE_FORMAT_ASTC_4x4_SRGB,
591 PIPE_FORMAT_ASTC_5x4_SRGB,
592 PIPE_FORMAT_ASTC_5x5_SRGB,
593 PIPE_FORMAT_ASTC_6x5_SRGB,
594 PIPE_FORMAT_ASTC_6x6_SRGB,
595 PIPE_FORMAT_ASTC_8x5_SRGB,
596 PIPE_FORMAT_ASTC_8x6_SRGB,
597 PIPE_FORMAT_ASTC_8x8_SRGB,
598 PIPE_FORMAT_ASTC_10x5_SRGB,
599 PIPE_FORMAT_ASTC_10x6_SRGB,
600 PIPE_FORMAT_ASTC_10x8_SRGB,
601 PIPE_FORMAT_ASTC_10x10_SRGB,
602 PIPE_FORMAT_ASTC_12x10_SRGB,
603 PIPE_FORMAT_ASTC_12x12_SRGB } },
604
605 { { o(EXT_texture_shared_exponent) },
606 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
607
608 { { o(EXT_texture_snorm) },
609 { PIPE_FORMAT_R8G8B8A8_SNORM } },
610
611 { { o(EXT_texture_sRGB),
612 o(EXT_texture_sRGB_decode) },
613 { PIPE_FORMAT_A8B8G8R8_SRGB,
614 PIPE_FORMAT_B8G8R8A8_SRGB },
615 GL_TRUE }, /* at least one format must be supported */
616
617 { { o(ATI_texture_compression_3dc) },
618 { PIPE_FORMAT_LATC2_UNORM } },
619
620 { { o(MESA_ycbcr_texture) },
621 { PIPE_FORMAT_UYVY,
622 PIPE_FORMAT_YUYV },
623 GL_TRUE }, /* at least one format must be supported */
624
625 { { o(OES_compressed_ETC1_RGB8_texture) },
626 { PIPE_FORMAT_ETC1_RGB8,
627 PIPE_FORMAT_R8G8B8A8_UNORM },
628 GL_TRUE }, /* at least one format must be supported */
629
630 { { o(ARB_stencil_texturing),
631 o(ARB_texture_stencil8) },
632 { PIPE_FORMAT_X24S8_UINT,
633 PIPE_FORMAT_S8X24_UINT },
634 GL_TRUE }, /* at least one format must be supported */
635 };
636
637 /* Required: vertex fetch support. */
638 static const struct st_extension_format_mapping vertex_mapping[] = {
639 { { o(ARB_vertex_type_2_10_10_10_rev) },
640 { PIPE_FORMAT_R10G10B10A2_UNORM,
641 PIPE_FORMAT_B10G10R10A2_UNORM,
642 PIPE_FORMAT_R10G10B10A2_SNORM,
643 PIPE_FORMAT_B10G10R10A2_SNORM,
644 PIPE_FORMAT_R10G10B10A2_USCALED,
645 PIPE_FORMAT_B10G10R10A2_USCALED,
646 PIPE_FORMAT_R10G10B10A2_SSCALED,
647 PIPE_FORMAT_B10G10R10A2_SSCALED } },
648 { { o(ARB_vertex_type_10f_11f_11f_rev) },
649 { PIPE_FORMAT_R11G11B10_FLOAT } },
650 };
651
652 static const struct st_extension_format_mapping tbo_rgb32[] = {
653 { {o(ARB_texture_buffer_object_rgb32) },
654 { PIPE_FORMAT_R32G32B32_FLOAT,
655 PIPE_FORMAT_R32G32B32_UINT,
656 PIPE_FORMAT_R32G32B32_SINT,
657 } },
658 };
659
660 /*
661 * Extensions that are supported by all Gallium drivers:
662 */
663 extensions->ARB_ES2_compatibility = GL_TRUE;
664 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
665 extensions->ARB_explicit_attrib_location = GL_TRUE;
666 extensions->ARB_explicit_uniform_location = GL_TRUE;
667 extensions->ARB_fragment_coord_conventions = GL_TRUE;
668 extensions->ARB_fragment_program = GL_TRUE;
669 extensions->ARB_fragment_shader = GL_TRUE;
670 extensions->ARB_half_float_vertex = GL_TRUE;
671 extensions->ARB_internalformat_query = GL_TRUE;
672 extensions->ARB_map_buffer_range = GL_TRUE;
673 extensions->ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
674 extensions->ARB_texture_cube_map = GL_TRUE;
675 extensions->ARB_texture_env_combine = GL_TRUE;
676 extensions->ARB_texture_env_crossbar = GL_TRUE;
677 extensions->ARB_texture_env_dot3 = GL_TRUE;
678 extensions->ARB_vertex_program = GL_TRUE;
679 extensions->ARB_vertex_shader = GL_TRUE;
680
681 extensions->EXT_blend_color = GL_TRUE;
682 extensions->EXT_blend_func_separate = GL_TRUE;
683 extensions->EXT_blend_minmax = GL_TRUE;
684 extensions->EXT_gpu_program_parameters = GL_TRUE;
685 extensions->EXT_pixel_buffer_object = GL_TRUE;
686 extensions->EXT_point_parameters = GL_TRUE;
687 extensions->EXT_provoking_vertex = GL_TRUE;
688
689 extensions->EXT_texture_env_dot3 = GL_TRUE;
690 extensions->EXT_vertex_array_bgra = GL_TRUE;
691
692 extensions->ATI_texture_env_combine3 = GL_TRUE;
693
694 extensions->MESA_pack_invert = GL_TRUE;
695
696 extensions->NV_fog_distance = GL_TRUE;
697 extensions->NV_texture_env_combine4 = GL_TRUE;
698 extensions->NV_texture_rectangle = GL_TRUE;
699
700 extensions->OES_EGL_image = GL_TRUE;
701 extensions->OES_EGL_image_external = GL_TRUE;
702 extensions->OES_draw_texture = GL_TRUE;
703
704 /* Expose the extensions which directly correspond to gallium caps. */
705 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
706 if (screen->get_param(screen, cap_mapping[i].cap)) {
707 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
708 }
709 }
710
711 /* Expose the extensions which directly correspond to gallium formats. */
712 init_format_extensions(screen, extensions, rendertarget_mapping,
713 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
714 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
715 init_format_extensions(screen, extensions, depthstencil_mapping,
716 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
717 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
718 init_format_extensions(screen, extensions, texture_mapping,
719 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
720 PIPE_BIND_SAMPLER_VIEW);
721 init_format_extensions(screen, extensions, vertex_mapping,
722 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
723 PIPE_BIND_VERTEX_BUFFER);
724
725 /* Figure out GLSL support. */
726 glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
727
728 consts->GLSLVersion = glsl_feature_level;
729 if (glsl_feature_level >= 410)
730 consts->GLSLVersion = 410;
731
732 _mesa_override_glsl_version(consts);
733
734 if (options->force_glsl_version > 0 &&
735 options->force_glsl_version <= consts->GLSLVersion) {
736 consts->ForceGLSLVersion = options->force_glsl_version;
737 }
738
739 if (glsl_feature_level >= 400)
740 extensions->ARB_gpu_shader5 = GL_TRUE;
741 if (glsl_feature_level >= 410)
742 extensions->ARB_shader_precision = GL_TRUE;
743
744 /* This extension needs full OpenGL 3.2, but we don't know if that's
745 * supported at this point. Only check the GLSL version. */
746 if (consts->GLSLVersion >= 150 &&
747 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
748 extensions->AMD_vertex_shader_layer = GL_TRUE;
749 }
750
751 if (consts->GLSLVersion >= 130) {
752 consts->NativeIntegers = GL_TRUE;
753 consts->MaxClipPlanes = 8;
754
755 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
756 consts->VertexID_is_zero_based = GL_TRUE;
757 }
758
759 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
760 extensions->ARB_conservative_depth = GL_TRUE;
761 extensions->ARB_shading_language_packing = GL_TRUE;
762 extensions->OES_depth_texture_cube_map = GL_TRUE;
763 extensions->ARB_shading_language_420pack = GL_TRUE;
764 extensions->ARB_texture_query_levels = GL_TRUE;
765 extensions->ARB_shader_subroutine = GL_TRUE;
766
767 if (!options->disable_shader_bit_encoding) {
768 extensions->ARB_shader_bit_encoding = GL_TRUE;
769 }
770
771 extensions->EXT_shader_integer_mix = GL_TRUE;
772 } else {
773 /* Optional integer support for GLSL 1.2. */
774 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
775 PIPE_SHADER_CAP_INTEGERS) &&
776 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
777 PIPE_SHADER_CAP_INTEGERS)) {
778 consts->NativeIntegers = GL_TRUE;
779
780 extensions->EXT_shader_integer_mix = GL_TRUE;
781 }
782
783 /* Integer textures make no sense before GLSL 1.30 */
784 extensions->EXT_texture_integer = GL_FALSE;
785 }
786
787 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
788
789 /* Below are the cases which cannot be moved into tables easily. */
790
791 if (!has_lib_dxtc && !options->force_s3tc_enable) {
792 extensions->EXT_texture_compression_s3tc = GL_FALSE;
793 extensions->ANGLE_texture_compression_dxt = GL_FALSE;
794 }
795
796 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
797 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
798 extensions->ARB_tessellation_shader = GL_TRUE;
799 }
800
801 if (screen->fence_finish) {
802 extensions->ARB_sync = GL_TRUE;
803 }
804
805 /* Maximum sample count. */
806 {
807 enum pipe_format color_formats[] = {
808 PIPE_FORMAT_R8G8B8A8_UNORM,
809 PIPE_FORMAT_B8G8R8A8_UNORM,
810 PIPE_FORMAT_A8R8G8B8_UNORM,
811 PIPE_FORMAT_A8B8G8R8_UNORM,
812 };
813 enum pipe_format depth_formats[] = {
814 PIPE_FORMAT_Z16_UNORM,
815 PIPE_FORMAT_Z24X8_UNORM,
816 PIPE_FORMAT_X8Z24_UNORM,
817 PIPE_FORMAT_Z32_UNORM,
818 PIPE_FORMAT_Z32_FLOAT
819 };
820 enum pipe_format int_formats[] = {
821 PIPE_FORMAT_R8G8B8A8_SINT
822 };
823
824 consts->MaxSamples =
825 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
826 color_formats, 16,
827 PIPE_BIND_RENDER_TARGET);
828
829 consts->MaxColorTextureSamples =
830 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
831 color_formats, consts->MaxSamples,
832 PIPE_BIND_SAMPLER_VIEW);
833
834 consts->MaxDepthTextureSamples =
835 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
836 depth_formats, consts->MaxSamples,
837 PIPE_BIND_SAMPLER_VIEW);
838
839 consts->MaxIntegerSamples =
840 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
841 int_formats, consts->MaxSamples,
842 PIPE_BIND_SAMPLER_VIEW);
843 }
844 if (consts->MaxSamples == 1) {
845 /* one sample doesn't really make sense */
846 consts->MaxSamples = 0;
847 }
848 else if (consts->MaxSamples >= 2) {
849 extensions->EXT_framebuffer_multisample = GL_TRUE;
850 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
851 }
852
853 if (consts->MaxSamples == 0 && screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
854 consts->FakeSWMSAA = GL_TRUE;
855 extensions->EXT_framebuffer_multisample = GL_TRUE;
856 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
857 extensions->ARB_texture_multisample = GL_TRUE;
858 }
859
860 if (consts->MaxDualSourceDrawBuffers > 0 &&
861 !options->disable_blend_func_extended)
862 extensions->ARB_blend_func_extended = GL_TRUE;
863
864 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
865 extensions->ARB_timer_query) {
866 extensions->EXT_timer_query = GL_TRUE;
867 }
868
869 if (extensions->ARB_transform_feedback2 &&
870 extensions->ARB_draw_instanced) {
871 extensions->ARB_transform_feedback_instanced = GL_TRUE;
872 }
873 if (options->force_glsl_extensions_warn)
874 consts->ForceGLSLExtensionsWarn = 1;
875
876 if (options->disable_glsl_line_continuations)
877 consts->DisableGLSLLineContinuations = 1;
878
879 if (options->allow_glsl_extension_directive_midshader)
880 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
881
882 consts->MinMapBufferAlignment =
883 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
884
885 if (extensions->ARB_texture_buffer_object) {
886 consts->MaxTextureBufferSize =
887 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
888 (1u << 31) - 1);
889 consts->TextureBufferOffsetAlignment =
890 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
891
892 if (consts->TextureBufferOffsetAlignment)
893 extensions->ARB_texture_buffer_range = GL_TRUE;
894
895 init_format_extensions(screen, extensions, tbo_rgb32,
896 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
897 PIPE_BIND_SAMPLER_VIEW);
898 }
899
900 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
901 * If the number of available texture indirections is very limited, then we
902 * prefer to disable varying packing rather than run the risk of varying
903 * packing preventing a shader from running.
904 */
905 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
906 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
907 /* We can't disable varying packing if transform feedback is available,
908 * because transform feedback code assumes a packed varying layout.
909 */
910 if (!extensions->EXT_transform_feedback)
911 consts->DisableVaryingPacking = GL_TRUE;
912 }
913
914 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
915 if (consts->MaxViewports >= 16) {
916 if (glsl_feature_level >= 400) {
917 consts->ViewportBounds.Min = -32768.0;
918 consts->ViewportBounds.Max = 32767.0;
919 } else {
920 consts->ViewportBounds.Min = -16384.0;
921 consts->ViewportBounds.Max = 16383.0;
922 }
923 extensions->ARB_viewport_array = GL_TRUE;
924 extensions->ARB_fragment_layer_viewport = GL_TRUE;
925 if (extensions->AMD_vertex_shader_layer)
926 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
927 }
928
929 /* GL_ARB_ES3_compatibility.
930 *
931 * Assume that ES3 is supported if GLSL 3.30 is supported.
932 * (OpenGL 3.3 is a requirement for that extension.)
933 */
934 if (consts->GLSLVersion >= 330 &&
935 /* Requirements for ETC2 emulation. */
936 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
937 PIPE_TEXTURE_2D, 0,
938 PIPE_BIND_SAMPLER_VIEW) &&
939 screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
940 PIPE_TEXTURE_2D, 0,
941 PIPE_BIND_SAMPLER_VIEW) &&
942 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
943 PIPE_TEXTURE_2D, 0,
944 PIPE_BIND_SAMPLER_VIEW) &&
945 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
946 PIPE_TEXTURE_2D, 0,
947 PIPE_BIND_SAMPLER_VIEW) &&
948 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
949 PIPE_TEXTURE_2D, 0,
950 PIPE_BIND_SAMPLER_VIEW) &&
951 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
952 PIPE_TEXTURE_2D, 0,
953 PIPE_BIND_SAMPLER_VIEW)) {
954 extensions->ARB_ES3_compatibility = GL_TRUE;
955 }
956
957 if (screen->get_video_param &&
958 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
959 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
960 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
961 extensions->NV_vdpau_interop = GL_TRUE;
962 }
963
964 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
965 PIPE_SHADER_CAP_DOUBLES) &&
966 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
967 PIPE_SHADER_CAP_DOUBLES)) {
968 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
969 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
970 }
971 }