projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
st/mesa: set ctx->Const.SubPixelBits
[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 "compiler/nir/nir.h"
30
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/version.h"
35
36 #include "pipe/p_context.h"
37 #include "pipe/p_defines.h"
38 #include "pipe/p_screen.h"
39 #include "tgsi/tgsi_from_mesa.h"
40 #include "util/u_math.h"
41
42 #include "st_context.h"
43 #include "st_debug.h"
44 #include "st_extensions.h"
45 #include "st_format.h"
46
47
48 /*
49 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
50 * avoid evaluating arguments (which are often function calls) more than once.
51 */
52
53 static unsigned _min(unsigned a, unsigned b)
54 {
55 return (a < b) ? a : b;
56 }
57
58 static float _maxf(float a, float b)
59 {
60 return (a > b) ? a : b;
61 }
62
63 static int _clamp(int a, int min, int max)
64 {
65 if (a < min)
66 return min;
67 else if (a > max)
68 return max;
69 else
70 return a;
71 }
72
73
74 /**
75 * Query driver to get implementation limits.
76 * Note that we have to limit/clamp against Mesa's internal limits too.
77 */
78 void st_init_limits(struct pipe_screen *screen,
79 struct gl_constants *c, struct gl_extensions *extensions,
80 gl_api api)
81 {
82 int supported_irs;
83 unsigned sh;
84 boolean can_ubo = TRUE;
85 int temp;
86 bool ssbo_atomic = true;
87
88 c->MaxTextureLevels
89 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
90 MAX_TEXTURE_LEVELS);
91
92 c->Max3DTextureLevels
93 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
94 MAX_3D_TEXTURE_LEVELS);
95
96 c->MaxCubeTextureLevels
97 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
98 MAX_CUBE_TEXTURE_LEVELS);
99
100 c->MaxTextureRectSize
101 = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
102
103 c->MaxArrayTextureLayers
104 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
105
106 /* Define max viewport size and max renderbuffer size in terms of
107 * max texture size (note: max tex RECT size = max tex 2D size).
108 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
109 */
110 c->MaxViewportWidth =
111 c->MaxViewportHeight =
112 c->MaxRenderbufferSize = c->MaxTextureRectSize;
113
114 c->SubPixelBits =
115 c->ViewportSubpixelBits =
116 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
117
118 c->MaxDrawBuffers = c->MaxColorAttachments =
119 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
120 1, MAX_DRAW_BUFFERS);
121
122 c->MaxDualSourceDrawBuffers =
123 _clamp(screen->get_param(screen,
124 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
125 0, MAX_DRAW_BUFFERS);
126
127 c->MaxLineWidth =
128 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
129 c->MaxLineWidthAA =
130 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
131
132 c->MaxPointSize =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
134 c->MaxPointSizeAA =
135 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
136
137 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
138 * for non-aa sizes, but we can go down to 0.0 for aa points.
139 */
140 c->MinPointSize = 1.0f;
141 c->MinPointSizeAA = 0.0f;
142
143 c->MaxTextureMaxAnisotropy =
144 _maxf(2.0f,
145 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
146
147 c->MaxTextureLodBias =
148 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
149
150 c->QuadsFollowProvokingVertexConvention =
151 screen->get_param(screen,
152 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
153
154 c->MaxUniformBlockSize =
155 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
156 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
157 if (c->MaxUniformBlockSize < 16384) {
158 can_ubo = FALSE;
159 }
160
161 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
162 struct gl_shader_compiler_options *options;
163 struct gl_program_constants *pc;
164 const nir_shader_compiler_options *nir_options = NULL;
165
166 if (screen->get_compiler_options) {
167 nir_options = (const nir_shader_compiler_options *)
168 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
169 }
170
171 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
172 pc = &c->Program[stage];
173 options = &c->ShaderCompilerOptions[stage];
174 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
175
176 if (sh == PIPE_SHADER_COMPUTE) {
177 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
178 continue;
179 supported_irs =
180 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
181 if (!(supported_irs & (1 << PIPE_SHADER_IR_TGSI)))
182 continue;
183 }
184
185 pc->MaxTextureImageUnits =
186 _min(screen->get_shader_param(screen, sh,
187 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
188 MAX_TEXTURE_IMAGE_UNITS);
189
190 pc->MaxInstructions =
191 pc->MaxNativeInstructions =
192 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
193 pc->MaxAluInstructions =
194 pc->MaxNativeAluInstructions =
195 screen->get_shader_param(screen, sh,
196 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
197 pc->MaxTexInstructions =
198 pc->MaxNativeTexInstructions =
199 screen->get_shader_param(screen, sh,
200 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
201 pc->MaxTexIndirections =
202 pc->MaxNativeTexIndirections =
203 screen->get_shader_param(screen, sh,
204 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
205 pc->MaxAttribs =
206 pc->MaxNativeAttribs =
207 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
208 pc->MaxTemps =
209 pc->MaxNativeTemps =
210 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
211 pc->MaxAddressRegs =
212 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
213 pc->MaxParameters =
214 pc->MaxNativeParameters =
215 screen->get_shader_param(screen, sh,
216 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / sizeof(float[4]);
217 pc->MaxInputComponents =
218 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
219 pc->MaxOutputComponents =
220 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
221
222 pc->MaxUniformComponents =
223 4 * MIN2(pc->MaxNativeParameters, MAX_UNIFORMS);
224
225 pc->MaxUniformBlocks =
226 screen->get_shader_param(screen, sh,
227 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
228 if (pc->MaxUniformBlocks)
229 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
230 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
231
232 pc->MaxCombinedUniformComponents = (pc->MaxUniformComponents +
233 c->MaxUniformBlockSize / 4 *
234 pc->MaxUniformBlocks);
235
236 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
237 if (temp) {
238 /*
239 * for separate atomic counters get the actual hw limits
240 * per stage on atomic counters and buffers
241 */
242 ssbo_atomic = false;
243 pc->MaxAtomicCounters = temp;
244 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
245 pc->MaxShaderStorageBlocks = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
246 } else {
247 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
248 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS) / 2;
249 pc->MaxShaderStorageBlocks = pc->MaxAtomicBuffers;
250 }
251 pc->MaxImageUniforms = screen->get_shader_param(
252 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
253
254 /* Gallium doesn't really care about local vs. env parameters so use the
255 * same limits.
256 */
257 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
258 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
259
260 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
261 pc->LowInt.RangeMin = 31;
262 pc->LowInt.RangeMax = 30;
263 pc->LowInt.Precision = 0;
264 pc->MediumInt = pc->HighInt = pc->LowInt;
265 }
266
267 /* TODO: make these more fine-grained if anyone needs it */
268 options->MaxIfDepth =
269 screen->get_shader_param(screen, sh,
270 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
271 options->EmitNoLoops =
272 !screen->get_shader_param(screen, sh,
273 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
274 options->EmitNoMainReturn =
275 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
276
277 options->EmitNoCont =
278 !screen->get_shader_param(screen, sh,
279 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
280
281 options->EmitNoIndirectInput =
282 !screen->get_shader_param(screen, sh,
283 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
284 options->EmitNoIndirectOutput =
285 !screen->get_shader_param(screen, sh,
286 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
287 options->EmitNoIndirectTemp =
288 !screen->get_shader_param(screen, sh,
289 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
290 options->EmitNoIndirectUniform =
291 !screen->get_shader_param(screen, sh,
292 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
293
294 if (pc->MaxNativeInstructions &&
295 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
296 can_ubo = FALSE;
297 }
298
299 if (options->EmitNoLoops)
300 options->MaxUnrollIterations =
301 MIN2(screen->get_shader_param(screen, sh,
302 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
303 65536);
304 else
305 options->MaxUnrollIterations =
306 screen->get_shader_param(screen, sh,
307 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
308
309 options->LowerCombinedClipCullDistance = true;
310 options->LowerBufferInterfaceBlocks = true;
311 }
312
313 c->GLSLOptimizeConservatively =
314 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
315 c->LowerTessLevel = true;
316 c->LowerCsDerivedVariables = true;
317 c->PrimitiveRestartForPatches =
318 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
319
320 c->MaxCombinedTextureImageUnits =
321 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
322 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
323 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
324 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
325 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
326 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
327 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
328
329 /* This depends on program constants. */
330 c->MaxTextureCoordUnits
331 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
332 MAX_TEXTURE_COORD_UNITS);
333
334 c->MaxTextureUnits =
335 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
336 c->MaxTextureCoordUnits);
337
338 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
339 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
340
341 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
342 * of inputs. It's always 2 colors + N generic inputs. */
343 c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
344 PIPE_SHADER_CAP_MAX_INPUTS);
345 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
346 c->MaxGeometryOutputVertices =
347 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
348 c->MaxGeometryTotalOutputComponents =
349 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
350 c->MaxTessPatchComponents =
351 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
352 MAX_VARYING) * 4;
353
354 c->MinProgramTexelOffset =
355 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
356 c->MaxProgramTexelOffset =
357 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
358
359 c->MaxProgramTextureGatherComponents =
360 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
361 c->MinProgramTextureGatherOffset =
362 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
363 c->MaxProgramTextureGatherOffset =
364 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
365
366 c->MaxTransformFeedbackBuffers =
367 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
368 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
369 MAX_FEEDBACK_BUFFERS);
370 c->MaxTransformFeedbackSeparateComponents =
371 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
372 c->MaxTransformFeedbackInterleavedComponents =
373 screen->get_param(screen,
374 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
375 c->MaxVertexStreams =
376 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
377
378 /* The vertex stream must fit into pipe_stream_output_info::stream */
379 assert(c->MaxVertexStreams <= 4);
380
381 c->MaxVertexAttribStride
382 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
383
384 c->StripTextureBorder = GL_TRUE;
385
386 c->GLSLSkipStrictMaxUniformLimitCheck =
387 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
388
389 c->UniformBufferOffsetAlignment =
390 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
391
392 if (can_ubo) {
393 extensions->ARB_uniform_buffer_object = GL_TRUE;
394 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
395 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
396 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
397 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
398 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
399 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
400 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
401 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
402 }
403
404 c->GLSLFragCoordIsSysVal =
405 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
406 c->GLSLFrontFacingIsSysVal =
407 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
408
409 /* GL_ARB_get_program_binary
410 *
411 * The QT framework has a bug in their shader program cache, which is built
412 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
413 * we don't enable more than 1 binary format for compatibility profiles.
414 */
415 if (api != API_OPENGL_COMPAT &&
416 screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
417 c->NumProgramBinaryFormats = 1;
418
419 c->MaxAtomicBufferBindings =
420 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
421
422 if (!ssbo_atomic) {
423 /* for separate atomic buffers - there atomic buffer size will be
424 limited */
425 c->MaxAtomicBufferSize = c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
426 /* on all HW with separate atomic (evergreen) the following
427 lines are true. not sure it's worth adding CAPs for this at this
428 stage. */
429 c->MaxCombinedAtomicCounters = c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters;
430 c->MaxCombinedAtomicBuffers = c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
431 } else {
432 c->MaxCombinedAtomicBuffers =
433 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
434 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
435 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
436 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
437 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
438 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
439 }
440
441 if (c->MaxCombinedAtomicBuffers > 0) {
442 extensions->ARB_shader_atomic_counters = GL_TRUE;
443 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
444 }
445
446 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
447 c->ShaderStorageBufferOffsetAlignment =
448 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
449 if (c->ShaderStorageBufferOffsetAlignment) {
450 /* for hw atomic counters leaves these at default for now */
451 if (ssbo_atomic)
452 c->MaxCombinedShaderStorageBlocks = c->MaxShaderStorageBufferBindings =
453 c->MaxCombinedAtomicBuffers;
454 c->MaxCombinedShaderOutputResources +=
455 c->MaxCombinedShaderStorageBlocks;
456 c->MaxShaderStorageBlockSize = 1 << 27;
457 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
458 }
459
460 c->MaxCombinedImageUniforms =
461 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
462 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
463 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
464 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
465 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
466 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
467 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
468 c->MaxImageUnits = MAX_IMAGE_UNITS;
469 if (c->MaxCombinedImageUniforms) {
470 extensions->ARB_shader_image_load_store = GL_TRUE;
471 extensions->ARB_shader_image_size = GL_TRUE;
472 }
473
474 /* ARB_framebuffer_no_attachments */
475 c->MaxFramebufferWidth = c->MaxViewportWidth;
476 c->MaxFramebufferHeight = c->MaxViewportHeight;
477 /* NOTE: we cheat here a little by assuming that
478 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
479 * number of layers as we need, although we technically
480 * could have more the generality is not really useful
481 * in practicality.
482 */
483 c->MaxFramebufferLayers =
484 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
485
486 c->MaxWindowRectangles =
487 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
488
489 c->SparseBufferPageSize =
490 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
491
492 c->AllowMappedBuffersDuringExecution =
493 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
494
495 c->UseSTD430AsDefaultPacking =
496 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
497
498 c->MaxSubpixelPrecisionBiasBits =
499 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
500
501 c->ConservativeRasterDilateRange[0] =
502 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
503 c->ConservativeRasterDilateRange[1] =
504 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
505 c->ConservativeRasterDilateGranularity =
506 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
507
508 /* limit the max combined shader output resources to a driver limit */
509 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
510 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
511 c->MaxCombinedShaderOutputResources = temp;
512 }
513
514
515 /**
516 * Given a member \c x of struct gl_extensions, return offset of
517 * \c x in bytes.
518 */
519 #define o(x) offsetof(struct gl_extensions, x)
520
521
522 struct st_extension_cap_mapping {
523 int extension_offset;
524 int cap;
525 };
526
527 struct st_extension_format_mapping {
528 int extension_offset[2];
529 enum pipe_format format[32];
530
531 /* If TRUE, at least one format must be supported for the extensions to be
532 * advertised. If FALSE, all the formats must be supported. */
533 GLboolean need_at_least_one;
534 };
535
536 /**
537 * Enable extensions if certain pipe formats are supported by the driver.
538 * What extensions will be enabled and what formats must be supported is
539 * described by the array of st_extension_format_mapping.
540 *
541 * target and bind_flags are passed to is_format_supported.
542 */
543 static void
544 init_format_extensions(struct pipe_screen *screen,
545 struct gl_extensions *extensions,
546 const struct st_extension_format_mapping *mapping,
547 unsigned num_mappings,
548 enum pipe_texture_target target,
549 unsigned bind_flags)
550 {
551 GLboolean *extension_table = (GLboolean *) extensions;
552 unsigned i;
553 int j;
554 int num_formats = ARRAY_SIZE(mapping->format);
555 int num_ext = ARRAY_SIZE(mapping->extension_offset);
556
557 for (i = 0; i < num_mappings; i++) {
558 int num_supported = 0;
559
560 /* Examine each format in the list. */
561 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
562 if (screen->is_format_supported(screen, mapping[i].format[j],
563 target, 0, 0, bind_flags)) {
564 num_supported++;
565 }
566 }
567
568 if (!num_supported ||
569 (!mapping[i].need_at_least_one && num_supported != j)) {
570 continue;
571 }
572
573 /* Enable all extensions in the list. */
574 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
575 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
576 }
577 }
578
579
580 /**
581 * Given a list of formats and bind flags, return the maximum number
582 * of samples supported by any of those formats.
583 */
584 static unsigned
585 get_max_samples_for_formats(struct pipe_screen *screen,
586 unsigned num_formats,
587 const enum pipe_format *formats,
588 unsigned max_samples,
589 unsigned bind)
590 {
591 unsigned i, f;
592
593 for (i = max_samples; i > 0; --i) {
594 for (f = 0; f < num_formats; f++) {
595 if (screen->is_format_supported(screen, formats[f],
596 PIPE_TEXTURE_2D, i, i, bind)) {
597 return i;
598 }
599 }
600 }
601 return 0;
602 }
603
604 static unsigned
605 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
606 unsigned num_formats,
607 const enum pipe_format *formats,
608 unsigned max_samples,
609 unsigned num_storage_samples,
610 unsigned bind)
611 {
612 unsigned i, f;
613
614 for (i = max_samples; i > 0; --i) {
615 for (f = 0; f < num_formats; f++) {
616 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
617 i, num_storage_samples, bind)) {
618 return i;
619 }
620 }
621 }
622 return 0;
623 }
624
625 /**
626 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
627 * which GL extensions are supported.
628 * Quite a few extensions are always supported because they are standard
629 * features or can be built on top of other gallium features.
630 * Some fine tuning may still be needed.
631 */
632 void st_init_extensions(struct pipe_screen *screen,
633 struct gl_constants *consts,
634 struct gl_extensions *extensions,
635 struct st_config_options *options,
636 gl_api api)
637 {
638 unsigned i;
639 GLboolean *extension_table = (GLboolean *) extensions;
640
641 static const struct st_extension_cap_mapping cap_mapping[] = {
642 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
643 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
644 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
645 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
646 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
647 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
648 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
649 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
650 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
651 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
652 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
653 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
654 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
655 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
656 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
657 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
658 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
659 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
660 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
661 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
662 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
663 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
664 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
665 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
666 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
667 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
668 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
669 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
670 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
671 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
672 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
673 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
674 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
675 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
676 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
677 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
678 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
679 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
680 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
681 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
682 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
683 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
684 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
685 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
686 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
687 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
688 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
689 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
690 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
691 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
692
693 { o(KHR_blend_equation_advanced), PIPE_CAP_TGSI_FS_FBFETCH },
694
695 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
696 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
697 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
698 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
699 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
700 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
701 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
702 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
703 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
704 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
705 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
706 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
707 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
708
709 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
710 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
711 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
712 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
713 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
714 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
715 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
716 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
717 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
718 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
719 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
720 /* GL_NV_point_sprite is not supported by gallium because we don't
721 * support the GL_POINT_SPRITE_R_MODE_NV option. */
722
723 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
724 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
725 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
726 };
727
728 /* Required: render target and sampler support */
729 static const struct st_extension_format_mapping rendertarget_mapping[] = {
730 { { o(ARB_texture_float) },
731 { PIPE_FORMAT_R32G32B32A32_FLOAT,
732 PIPE_FORMAT_R16G16B16A16_FLOAT } },
733
734 { { o(OES_texture_float) },
735 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
736
737 { { o(OES_texture_half_float) },
738 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
739
740 { { o(ARB_texture_rgb10_a2ui) },
741 { PIPE_FORMAT_R10G10B10A2_UINT,
742 PIPE_FORMAT_B10G10R10A2_UINT },
743 GL_TRUE }, /* at least one format must be supported */
744
745 { { o(EXT_framebuffer_sRGB) },
746 { PIPE_FORMAT_A8B8G8R8_SRGB,
747 PIPE_FORMAT_B8G8R8A8_SRGB,
748 PIPE_FORMAT_R8G8B8A8_SRGB },
749 GL_TRUE }, /* at least one format must be supported */
750
751 { { o(EXT_packed_float) },
752 { PIPE_FORMAT_R11G11B10_FLOAT } },
753
754 { { o(EXT_texture_integer) },
755 { PIPE_FORMAT_R32G32B32A32_UINT,
756 PIPE_FORMAT_R32G32B32A32_SINT } },
757
758 { { o(ARB_texture_rg) },
759 { PIPE_FORMAT_R8_UNORM,
760 PIPE_FORMAT_R8G8_UNORM } },
761 };
762
763 /* Required: depth stencil and sampler support */
764 static const struct st_extension_format_mapping depthstencil_mapping[] = {
765 { { o(ARB_depth_buffer_float) },
766 { PIPE_FORMAT_Z32_FLOAT,
767 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
768 };
769
770 /* Required: sampler support */
771 static const struct st_extension_format_mapping texture_mapping[] = {
772 { { o(ARB_texture_compression_rgtc) },
773 { PIPE_FORMAT_RGTC1_UNORM,
774 PIPE_FORMAT_RGTC1_SNORM,
775 PIPE_FORMAT_RGTC2_UNORM,
776 PIPE_FORMAT_RGTC2_SNORM } },
777
778 { { o(EXT_texture_compression_latc) },
779 { PIPE_FORMAT_LATC1_UNORM,
780 PIPE_FORMAT_LATC1_SNORM,
781 PIPE_FORMAT_LATC2_UNORM,
782 PIPE_FORMAT_LATC2_SNORM } },
783
784 { { o(EXT_texture_compression_s3tc),
785 o(ANGLE_texture_compression_dxt) },
786 { PIPE_FORMAT_DXT1_RGB,
787 PIPE_FORMAT_DXT1_RGBA,
788 PIPE_FORMAT_DXT3_RGBA,
789 PIPE_FORMAT_DXT5_RGBA } },
790
791 { { o(ARB_texture_compression_bptc) },
792 { PIPE_FORMAT_BPTC_RGBA_UNORM,
793 PIPE_FORMAT_BPTC_SRGBA,
794 PIPE_FORMAT_BPTC_RGB_FLOAT,
795 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
796
797 { { o(KHR_texture_compression_astc_ldr) },
798 { PIPE_FORMAT_ASTC_4x4,
799 PIPE_FORMAT_ASTC_5x4,
800 PIPE_FORMAT_ASTC_5x5,
801 PIPE_FORMAT_ASTC_6x5,
802 PIPE_FORMAT_ASTC_6x6,
803 PIPE_FORMAT_ASTC_8x5,
804 PIPE_FORMAT_ASTC_8x6,
805 PIPE_FORMAT_ASTC_8x8,
806 PIPE_FORMAT_ASTC_10x5,
807 PIPE_FORMAT_ASTC_10x6,
808 PIPE_FORMAT_ASTC_10x8,
809 PIPE_FORMAT_ASTC_10x10,
810 PIPE_FORMAT_ASTC_12x10,
811 PIPE_FORMAT_ASTC_12x12,
812 PIPE_FORMAT_ASTC_4x4_SRGB,
813 PIPE_FORMAT_ASTC_5x4_SRGB,
814 PIPE_FORMAT_ASTC_5x5_SRGB,
815 PIPE_FORMAT_ASTC_6x5_SRGB,
816 PIPE_FORMAT_ASTC_6x6_SRGB,
817 PIPE_FORMAT_ASTC_8x5_SRGB,
818 PIPE_FORMAT_ASTC_8x6_SRGB,
819 PIPE_FORMAT_ASTC_8x8_SRGB,
820 PIPE_FORMAT_ASTC_10x5_SRGB,
821 PIPE_FORMAT_ASTC_10x6_SRGB,
822 PIPE_FORMAT_ASTC_10x8_SRGB,
823 PIPE_FORMAT_ASTC_10x10_SRGB,
824 PIPE_FORMAT_ASTC_12x10_SRGB,
825 PIPE_FORMAT_ASTC_12x12_SRGB } },
826
827 /* ASTC software fallback support. */
828 { { o(KHR_texture_compression_astc_ldr) },
829 { PIPE_FORMAT_R8G8B8A8_UNORM,
830 PIPE_FORMAT_R8G8B8A8_SRGB } },
831
832 { { o(EXT_texture_shared_exponent) },
833 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
834
835 { { o(EXT_texture_snorm) },
836 { PIPE_FORMAT_R8G8B8A8_SNORM } },
837
838 { { o(EXT_texture_sRGB),
839 o(EXT_texture_sRGB_decode) },
840 { PIPE_FORMAT_A8B8G8R8_SRGB,
841 PIPE_FORMAT_B8G8R8A8_SRGB,
842 PIPE_FORMAT_A8R8G8B8_SRGB,
843 PIPE_FORMAT_R8G8B8A8_SRGB},
844 GL_TRUE }, /* at least one format must be supported */
845
846 { { o(EXT_texture_type_2_10_10_10_REV) },
847 { PIPE_FORMAT_R10G10B10A2_UNORM,
848 PIPE_FORMAT_B10G10R10A2_UNORM },
849 GL_TRUE }, /* at least one format must be supported */
850
851 { { o(ATI_texture_compression_3dc) },
852 { PIPE_FORMAT_LATC2_UNORM } },
853
854 { { o(MESA_ycbcr_texture) },
855 { PIPE_FORMAT_UYVY,
856 PIPE_FORMAT_YUYV },
857 GL_TRUE }, /* at least one format must be supported */
858
859 { { o(OES_compressed_ETC1_RGB8_texture) },
860 { PIPE_FORMAT_ETC1_RGB8,
861 PIPE_FORMAT_R8G8B8A8_UNORM },
862 GL_TRUE }, /* at least one format must be supported */
863
864 { { o(ARB_stencil_texturing),
865 o(ARB_texture_stencil8) },
866 { PIPE_FORMAT_X24S8_UINT,
867 PIPE_FORMAT_S8X24_UINT },
868 GL_TRUE }, /* at least one format must be supported */
869 };
870
871 /* Required: vertex fetch support. */
872 static const struct st_extension_format_mapping vertex_mapping[] = {
873 { { o(EXT_vertex_array_bgra) },
874 { PIPE_FORMAT_B8G8R8A8_UNORM } },
875 { { o(ARB_vertex_type_2_10_10_10_rev) },
876 { PIPE_FORMAT_R10G10B10A2_UNORM,
877 PIPE_FORMAT_B10G10R10A2_UNORM,
878 PIPE_FORMAT_R10G10B10A2_SNORM,
879 PIPE_FORMAT_B10G10R10A2_SNORM,
880 PIPE_FORMAT_R10G10B10A2_USCALED,
881 PIPE_FORMAT_B10G10R10A2_USCALED,
882 PIPE_FORMAT_R10G10B10A2_SSCALED,
883 PIPE_FORMAT_B10G10R10A2_SSCALED } },
884 { { o(ARB_vertex_type_10f_11f_11f_rev) },
885 { PIPE_FORMAT_R11G11B10_FLOAT } },
886 };
887
888 static const struct st_extension_format_mapping tbo_rgb32[] = {
889 { {o(ARB_texture_buffer_object_rgb32) },
890 { PIPE_FORMAT_R32G32B32_FLOAT,
891 PIPE_FORMAT_R32G32B32_UINT,
892 PIPE_FORMAT_R32G32B32_SINT,
893 } },
894 };
895
896 /*
897 * Extensions that are supported by all Gallium drivers:
898 */
899 extensions->ARB_ES2_compatibility = GL_TRUE;
900 extensions->ARB_depth_texture = GL_TRUE;
901 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
902 extensions->ARB_explicit_attrib_location = GL_TRUE;
903 extensions->ARB_explicit_uniform_location = GL_TRUE;
904 extensions->ARB_fragment_coord_conventions = GL_TRUE;
905 extensions->ARB_fragment_program = GL_TRUE;
906 extensions->ARB_fragment_program_shadow = GL_TRUE;
907 extensions->ARB_fragment_shader = GL_TRUE;
908 extensions->ARB_half_float_vertex = GL_TRUE;
909 extensions->ARB_internalformat_query = GL_TRUE;
910 extensions->ARB_internalformat_query2 = GL_TRUE;
911 extensions->ARB_map_buffer_range = GL_TRUE;
912 extensions->ARB_shadow = GL_TRUE;
913 extensions->ARB_sync = GL_TRUE;
914 extensions->ARB_texture_border_clamp = GL_TRUE;
915 extensions->ARB_texture_cube_map = GL_TRUE;
916 extensions->ARB_texture_env_combine = GL_TRUE;
917 extensions->ARB_texture_env_crossbar = GL_TRUE;
918 extensions->ARB_texture_env_dot3 = GL_TRUE;
919 extensions->ARB_vertex_program = GL_TRUE;
920 extensions->ARB_vertex_shader = GL_TRUE;
921
922 extensions->EXT_blend_color = GL_TRUE;
923 extensions->EXT_blend_func_separate = GL_TRUE;
924 extensions->EXT_blend_minmax = GL_TRUE;
925 extensions->EXT_gpu_program_parameters = GL_TRUE;
926 extensions->EXT_pixel_buffer_object = GL_TRUE;
927 extensions->EXT_point_parameters = GL_TRUE;
928 extensions->EXT_provoking_vertex = GL_TRUE;
929 extensions->EXT_stencil_two_side = GL_TRUE;
930 extensions->EXT_texture_env_dot3 = GL_TRUE;
931
932 extensions->ATI_fragment_shader = GL_TRUE;
933 extensions->ATI_texture_env_combine3 = GL_TRUE;
934
935 extensions->MESA_pack_invert = GL_TRUE;
936
937 extensions->NV_fog_distance = GL_TRUE;
938 extensions->NV_texture_env_combine4 = GL_TRUE;
939 extensions->NV_texture_rectangle = GL_TRUE;
940
941 extensions->OES_EGL_image = GL_TRUE;
942 extensions->OES_EGL_image_external = GL_TRUE;
943 extensions->OES_draw_texture = GL_TRUE;
944
945 /* Expose the extensions which directly correspond to gallium caps. */
946 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
947 if (screen->get_param(screen, cap_mapping[i].cap)) {
948 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
949 }
950 }
951
952 /* Expose the extensions which directly correspond to gallium formats. */
953 init_format_extensions(screen, extensions, rendertarget_mapping,
954 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
955 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
956 init_format_extensions(screen, extensions, depthstencil_mapping,
957 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
958 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
959 init_format_extensions(screen, extensions, texture_mapping,
960 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
961 PIPE_BIND_SAMPLER_VIEW);
962 init_format_extensions(screen, extensions, vertex_mapping,
963 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
964 PIPE_BIND_VERTEX_BUFFER);
965
966 /* Figure out GLSL support and set GLSLVersion to it. */
967 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
968 consts->GLSLVersionCompat =
969 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
970
971 const unsigned GLSLVersion =
972 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
973 consts->GLSLVersion;
974
975 _mesa_override_glsl_version(consts);
976
977 if (options->force_glsl_version > 0 &&
978 options->force_glsl_version <= GLSLVersion) {
979 consts->ForceGLSLVersion = options->force_glsl_version;
980 }
981
982 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
983
984 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
985
986 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
987
988 consts->dri_config_options_sha1 = options->config_options_sha1;
989
990 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
991
992 if (GLSLVersion >= 400)
993 extensions->ARB_gpu_shader5 = GL_TRUE;
994 if (GLSLVersion >= 410)
995 extensions->ARB_shader_precision = GL_TRUE;
996
997 /* This extension needs full OpenGL 3.2, but we don't know if that's
998 * supported at this point. Only check the GLSL version. */
999 if (GLSLVersion >= 150 &&
1000 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1001 extensions->AMD_vertex_shader_layer = GL_TRUE;
1002 }
1003
1004 if (GLSLVersion >= 140) {
1005 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1006 extensions->ARB_enhanced_layouts = GL_TRUE;
1007 }
1008
1009 if (GLSLVersion >= 130) {
1010 consts->NativeIntegers = GL_TRUE;
1011 consts->MaxClipPlanes = 8;
1012
1013 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1014 consts->VertexID_is_zero_based = GL_TRUE;
1015 }
1016
1017 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1018 extensions->ARB_conservative_depth = GL_TRUE;
1019 extensions->ARB_shading_language_packing = GL_TRUE;
1020 extensions->OES_depth_texture_cube_map = GL_TRUE;
1021 extensions->ARB_shading_language_420pack = GL_TRUE;
1022 extensions->ARB_texture_query_levels = GL_TRUE;
1023
1024 extensions->ARB_shader_bit_encoding = GL_TRUE;
1025
1026 extensions->EXT_shader_integer_mix = GL_TRUE;
1027 extensions->ARB_arrays_of_arrays = GL_TRUE;
1028 extensions->MESA_shader_integer_functions = GL_TRUE;
1029 } else {
1030 /* Optional integer support for GLSL 1.2. */
1031 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1032 PIPE_SHADER_CAP_INTEGERS) &&
1033 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1034 PIPE_SHADER_CAP_INTEGERS)) {
1035 consts->NativeIntegers = GL_TRUE;
1036
1037 extensions->EXT_shader_integer_mix = GL_TRUE;
1038 }
1039
1040 /* Integer textures make no sense before GLSL 1.30 */
1041 extensions->EXT_texture_integer = GL_FALSE;
1042 }
1043
1044 consts->GLSLZeroInit = options->glsl_zero_init;
1045
1046 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1047
1048 /* Below are the cases which cannot be moved into tables easily. */
1049
1050 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1051 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1052 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1053 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1054 extensions->ARB_tessellation_shader = GL_TRUE;
1055 }
1056
1057 /* What this is really checking for is the ability to support multiple
1058 * invocations of a geometry shader. There is no separate cap for that, so
1059 * we check the GLSLVersion.
1060 */
1061 if (GLSLVersion >= 400 &&
1062 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1063 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1064 extensions->OES_geometry_shader = GL_TRUE;
1065 }
1066
1067 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1068 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1069 */
1070 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1071 extensions->ARB_gpu_shader5;
1072
1073 /* Maximum sample count. */
1074 {
1075 static const enum pipe_format color_formats[] = {
1076 PIPE_FORMAT_R8G8B8A8_UNORM,
1077 PIPE_FORMAT_B8G8R8A8_UNORM,
1078 PIPE_FORMAT_A8R8G8B8_UNORM,
1079 PIPE_FORMAT_A8B8G8R8_UNORM,
1080 };
1081 static const enum pipe_format depth_formats[] = {
1082 PIPE_FORMAT_Z16_UNORM,
1083 PIPE_FORMAT_Z24X8_UNORM,
1084 PIPE_FORMAT_X8Z24_UNORM,
1085 PIPE_FORMAT_Z32_UNORM,
1086 PIPE_FORMAT_Z32_FLOAT
1087 };
1088 static const enum pipe_format int_formats[] = {
1089 PIPE_FORMAT_R8G8B8A8_SINT
1090 };
1091 static const enum pipe_format void_formats[] = {
1092 PIPE_FORMAT_NONE
1093 };
1094
1095 consts->MaxSamples =
1096 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1097 color_formats, 16,
1098 PIPE_BIND_RENDER_TARGET);
1099
1100 consts->MaxImageSamples =
1101 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1102 color_formats, 16,
1103 PIPE_BIND_SHADER_IMAGE);
1104
1105 consts->MaxColorTextureSamples =
1106 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1107 color_formats, consts->MaxSamples,
1108 PIPE_BIND_SAMPLER_VIEW);
1109
1110 consts->MaxDepthTextureSamples =
1111 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1112 depth_formats, consts->MaxSamples,
1113 PIPE_BIND_SAMPLER_VIEW);
1114
1115 consts->MaxIntegerSamples =
1116 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1117 int_formats, consts->MaxSamples,
1118 PIPE_BIND_SAMPLER_VIEW);
1119
1120 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1121 consts->MaxFramebufferSamples =
1122 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1123 void_formats, 32,
1124 PIPE_BIND_RENDER_TARGET);
1125
1126 if (extensions->AMD_framebuffer_multisample_advanced) {
1127 /* AMD_framebuffer_multisample_advanced */
1128 /* This can be greater than storage samples. */
1129 consts->MaxColorFramebufferSamples =
1130 get_max_samples_for_formats_advanced(screen,
1131 ARRAY_SIZE(color_formats),
1132 color_formats, 16,
1133 consts->MaxSamples,
1134 PIPE_BIND_RENDER_TARGET);
1135
1136 /* If the driver supports N color samples, it means it supports
1137 * N samples and N storage samples. N samples >= N storage
1138 * samples.
1139 */
1140 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1141 consts->MaxDepthStencilFramebufferSamples =
1142 consts->MaxDepthTextureSamples;
1143
1144 assert(consts->MaxColorFramebufferSamples >=
1145 consts->MaxDepthStencilFramebufferSamples);
1146 assert(consts->MaxDepthStencilFramebufferSamples >=
1147 consts->MaxColorFramebufferStorageSamples);
1148
1149 consts->NumSupportedMultisampleModes = 0;
1150
1151 unsigned depth_samples_supported = 0;
1152
1153 for (unsigned samples = 2;
1154 samples <= consts->MaxDepthStencilFramebufferSamples;
1155 samples++) {
1156 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1157 PIPE_TEXTURE_2D, samples, samples,
1158 PIPE_BIND_DEPTH_STENCIL))
1159 depth_samples_supported |= 1 << samples;
1160 }
1161
1162 for (unsigned samples = 2;
1163 samples <= consts->MaxColorFramebufferSamples;
1164 samples++) {
1165 for (unsigned depth_samples = 2;
1166 depth_samples <= samples; depth_samples++) {
1167 if (!(depth_samples_supported & (1 << depth_samples)))
1168 continue;
1169
1170 for (unsigned storage_samples = 2;
1171 storage_samples <= depth_samples; storage_samples++) {
1172 if (screen->is_format_supported(screen,
1173 PIPE_FORMAT_R8G8B8A8_UNORM,
1174 PIPE_TEXTURE_2D,
1175 samples,
1176 storage_samples,
1177 PIPE_BIND_RENDER_TARGET)) {
1178 unsigned i = consts->NumSupportedMultisampleModes;
1179
1180 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1181 consts->SupportedMultisampleModes[i].NumColorSamples =
1182 samples;
1183 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1184 storage_samples;
1185 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1186 depth_samples;
1187 consts->NumSupportedMultisampleModes++;
1188 }
1189 }
1190 }
1191 }
1192 }
1193 }
1194
1195 if (consts->MaxSamples >= 2) {
1196 /* Real MSAA support */
1197 extensions->EXT_framebuffer_multisample = GL_TRUE;
1198 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1199 }
1200 else if (consts->MaxSamples > 0 &&
1201 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1202 /* fake MSAA support */
1203 consts->FakeSWMSAA = GL_TRUE;
1204 extensions->EXT_framebuffer_multisample = GL_TRUE;
1205 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1206 extensions->ARB_texture_multisample = GL_TRUE;
1207 }
1208
1209 if (consts->MaxDualSourceDrawBuffers > 0 &&
1210 !options->disable_blend_func_extended)
1211 extensions->ARB_blend_func_extended = GL_TRUE;
1212
1213 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1214 extensions->ARB_timer_query) {
1215 extensions->EXT_timer_query = GL_TRUE;
1216 }
1217
1218 if (extensions->ARB_transform_feedback2 &&
1219 extensions->ARB_draw_instanced) {
1220 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1221 }
1222 if (options->force_glsl_extensions_warn)
1223 consts->ForceGLSLExtensionsWarn = 1;
1224
1225 if (options->disable_glsl_line_continuations)
1226 consts->DisableGLSLLineContinuations = 1;
1227
1228 if (options->allow_glsl_extension_directive_midshader)
1229 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1230
1231 if (options->allow_glsl_builtin_const_expression)
1232 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1233
1234 if (options->allow_glsl_relaxed_es)
1235 consts->AllowGLSLRelaxedES = GL_TRUE;
1236
1237 consts->MinMapBufferAlignment =
1238 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1239
1240 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1241 if (api == API_OPENGL_COMPAT &&
1242 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1243 extensions->ARB_texture_buffer_object = GL_FALSE;
1244
1245 if (extensions->ARB_texture_buffer_object) {
1246 consts->MaxTextureBufferSize =
1247 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1248 (1u << 31) - 1);
1249 consts->TextureBufferOffsetAlignment =
1250 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1251
1252 if (consts->TextureBufferOffsetAlignment)
1253 extensions->ARB_texture_buffer_range = GL_TRUE;
1254
1255 init_format_extensions(screen, extensions, tbo_rgb32,
1256 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1257 PIPE_BIND_SAMPLER_VIEW);
1258 }
1259
1260 extensions->OES_texture_buffer =
1261 extensions->ARB_texture_buffer_object &&
1262 extensions->ARB_texture_buffer_range &&
1263 extensions->ARB_texture_buffer_object_rgb32 &&
1264 extensions->ARB_shader_image_load_store;
1265
1266 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1267 * If the number of available texture indirections is very limited, then we
1268 * prefer to disable varying packing rather than run the risk of varying
1269 * packing preventing a shader from running.
1270 */
1271 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1272 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1273 /* We can't disable varying packing if transform feedback is available,
1274 * because transform feedback code assumes a packed varying layout.
1275 */
1276 if (!extensions->EXT_transform_feedback)
1277 consts->DisableVaryingPacking = GL_TRUE;
1278 }
1279
1280 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1281 if (consts->MaxViewports >= 16) {
1282 if (GLSLVersion >= 400) {
1283 consts->ViewportBounds.Min = -32768.0;
1284 consts->ViewportBounds.Max = 32767.0;
1285 } else {
1286 consts->ViewportBounds.Min = -16384.0;
1287 consts->ViewportBounds.Max = 16383.0;
1288 }
1289 extensions->ARB_viewport_array = GL_TRUE;
1290 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1291 if (extensions->AMD_vertex_shader_layer)
1292 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1293 }
1294
1295 if (extensions->AMD_vertex_shader_layer &&
1296 extensions->AMD_vertex_shader_viewport_index &&
1297 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1298 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1299
1300 /* ARB_framebuffer_no_attachments */
1301 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1302 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1303 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1304 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1305 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1306
1307 /* GL_ARB_ES3_compatibility.
1308 * Check requirements for GLSL ES 3.00.
1309 */
1310 if (GLSLVersion >= 130 &&
1311 extensions->ARB_uniform_buffer_object &&
1312 extensions->ARB_shader_bit_encoding &&
1313 extensions->NV_primitive_restart &&
1314 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1315 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1316 /* Requirements for ETC2 emulation. */
1317 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1318 PIPE_TEXTURE_2D, 0, 0,
1319 PIPE_BIND_SAMPLER_VIEW) &&
1320 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1321 PIPE_TEXTURE_2D, 0, 0,
1322 PIPE_BIND_SAMPLER_VIEW) &&
1323 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1324 PIPE_TEXTURE_2D, 0, 0,
1325 PIPE_BIND_SAMPLER_VIEW) &&
1326 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1327 PIPE_TEXTURE_2D, 0, 0,
1328 PIPE_BIND_SAMPLER_VIEW) &&
1329 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1330 PIPE_TEXTURE_2D, 0, 0,
1331 PIPE_BIND_SAMPLER_VIEW) &&
1332 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1333 PIPE_TEXTURE_2D, 0, 0,
1334 PIPE_BIND_SAMPLER_VIEW)) {
1335 extensions->ARB_ES3_compatibility = GL_TRUE;
1336 }
1337
1338 #ifdef HAVE_ST_VDPAU
1339 if (screen->get_video_param &&
1340 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1341 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1342 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1343 extensions->NV_vdpau_interop = GL_TRUE;
1344 }
1345 #endif
1346
1347 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1348 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1349 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1350 }
1351
1352 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1353 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1354 extensions->GREMEDY_string_marker = GL_TRUE;
1355
1356 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1357 int compute_supported_irs =
1358 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1359 PIPE_SHADER_CAP_SUPPORTED_IRS);
1360 if (compute_supported_irs & (1 << PIPE_SHADER_IR_TGSI)) {
1361 uint64_t grid_size[3], block_size[3];
1362 uint64_t max_local_size, max_threads_per_block;
1363
1364 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1365 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1366 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1367 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1368 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1369 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1370 &max_threads_per_block);
1371 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1372 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1373 &max_local_size);
1374
1375 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1376 consts->MaxComputeSharedMemorySize = max_local_size;
1377
1378 for (i = 0; i < 3; i++) {
1379 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1380 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1381 }
1382
1383 extensions->ARB_compute_shader =
1384 extensions->ARB_shader_image_load_store &&
1385 extensions->ARB_shader_atomic_counters;
1386
1387 if (extensions->ARB_compute_shader) {
1388 uint64_t max_variable_threads_per_block = 0;
1389
1390 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1391 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1392 &max_variable_threads_per_block);
1393
1394 for (i = 0; i < 3; i++) {
1395 /* Clamp the values to avoid having a local work group size
1396 * greater than the maximum number of invocations.
1397 */
1398 consts->MaxComputeVariableGroupSize[i] =
1399 MIN2(consts->MaxComputeWorkGroupSize[i],
1400 max_variable_threads_per_block);
1401 }
1402 consts->MaxComputeVariableGroupInvocations =
1403 max_variable_threads_per_block;
1404
1405 extensions->ARB_compute_variable_group_size =
1406 max_variable_threads_per_block > 0;
1407 }
1408 }
1409 }
1410
1411 if (extensions->EXT_texture_filter_anisotropic &&
1412 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1413 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1414
1415 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1416
1417 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1418 * there's no clean way of telling whether we would support ES 3.1 from
1419 * here, so copy the condition from compute_version_es2 here. A lot of
1420 * these are redunant, but simpler to just have a (near-)exact copy here.
1421 */
1422 extensions->ARB_ES3_1_compatibility =
1423 extensions->ARB_ES3_compatibility &&
1424 extensions->ARB_arrays_of_arrays &&
1425 extensions->ARB_compute_shader &&
1426 extensions->ARB_draw_indirect &&
1427 extensions->ARB_explicit_uniform_location &&
1428 extensions->ARB_framebuffer_no_attachments &&
1429 extensions->ARB_shader_atomic_counters &&
1430 extensions->ARB_shader_image_load_store &&
1431 extensions->ARB_shader_image_size &&
1432 extensions->ARB_shader_storage_buffer_object &&
1433 extensions->ARB_shading_language_packing &&
1434 extensions->ARB_stencil_texturing &&
1435 extensions->ARB_texture_multisample &&
1436 extensions->ARB_gpu_shader5 &&
1437 extensions->EXT_shader_integer_mix;
1438
1439 extensions->OES_texture_cube_map_array =
1440 extensions->ARB_ES3_1_compatibility &&
1441 extensions->OES_geometry_shader &&
1442 extensions->ARB_texture_cube_map_array;
1443
1444 extensions->OES_viewport_array =
1445 extensions->ARB_ES3_1_compatibility &&
1446 extensions->OES_geometry_shader &&
1447 extensions->ARB_viewport_array;
1448
1449 extensions->OES_primitive_bounding_box = extensions->ARB_ES3_1_compatibility;
1450 consts->NoPrimitiveBoundingBoxOutput = true;
1451
1452 extensions->ANDROID_extension_pack_es31a =
1453 extensions->KHR_texture_compression_astc_ldr &&
1454 extensions->KHR_blend_equation_advanced &&
1455 extensions->OES_sample_variables &&
1456 extensions->ARB_shader_image_load_store &&
1457 extensions->ARB_texture_stencil8 &&
1458 extensions->ARB_texture_multisample &&
1459 extensions->OES_copy_image &&
1460 extensions->ARB_draw_buffers_blend &&
1461 extensions->OES_geometry_shader &&
1462 extensions->ARB_gpu_shader5 &&
1463 extensions->OES_primitive_bounding_box &&
1464 extensions->ARB_tessellation_shader &&
1465 extensions->ARB_texture_border_clamp &&
1466 extensions->OES_texture_buffer &&
1467 extensions->OES_texture_cube_map_array &&
1468 extensions->EXT_texture_sRGB_decode;
1469
1470 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1471 * before overall versions are selected. Also it's actually a subset of ES
1472 * 3.2, since it doesn't require ASTC or advanced blending.
1473 */
1474 extensions->ARB_ES3_2_compatibility =
1475 extensions->ARB_ES3_1_compatibility &&
1476 extensions->KHR_robustness &&
1477 extensions->ARB_copy_image &&
1478 extensions->ARB_draw_buffers_blend &&
1479 extensions->ARB_draw_elements_base_vertex &&
1480 extensions->OES_geometry_shader &&
1481 extensions->ARB_gpu_shader5 &&
1482 extensions->ARB_sample_shading &&
1483 extensions->ARB_tessellation_shader &&
1484 extensions->ARB_texture_border_clamp &&
1485 extensions->OES_texture_buffer &&
1486 extensions->ARB_texture_cube_map_array &&
1487 extensions->ARB_texture_stencil8 &&
1488 extensions->ARB_texture_multisample;
1489
1490 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1491 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1492 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1493 float max_dilate;
1494 bool pre_snap_triangles, pre_snap_points_lines;
1495
1496 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1497
1498 pre_snap_triangles =
1499 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1500 pre_snap_points_lines =
1501 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1502
1503 extensions->NV_conservative_raster =
1504 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1505
1506 if (extensions->NV_conservative_raster) {
1507 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1508 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1509 extensions->NV_conservative_raster_pre_snap =
1510 pre_snap_triangles && pre_snap_points_lines;
1511 }
1512 }
1513 }