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gallium: add PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER{S,_BUFFERS}
[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 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureLevels
88 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
89 MAX_TEXTURE_LEVELS);
90
91 c->Max3DTextureLevels
92 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
93 MAX_3D_TEXTURE_LEVELS);
94
95 c->MaxCubeTextureLevels
96 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
97 MAX_CUBE_TEXTURE_LEVELS);
98
99 c->MaxTextureRectSize
100 = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
101
102 c->MaxArrayTextureLayers
103 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
104
105 /* Define max viewport size and max renderbuffer size in terms of
106 * max texture size (note: max tex RECT size = max tex 2D size).
107 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
108 */
109 c->MaxViewportWidth =
110 c->MaxViewportHeight =
111 c->MaxRenderbufferSize = c->MaxTextureRectSize;
112
113 c->SubPixelBits =
114 c->ViewportSubpixelBits =
115 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
116
117 c->MaxDrawBuffers = c->MaxColorAttachments =
118 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
119 1, MAX_DRAW_BUFFERS);
120
121 c->MaxDualSourceDrawBuffers =
122 _clamp(screen->get_param(screen,
123 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
124 0, MAX_DRAW_BUFFERS);
125
126 c->MaxLineWidth =
127 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
128 c->MaxLineWidthAA =
129 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
130
131 c->MaxPointSize =
132 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
133 c->MaxPointSizeAA =
134 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
135
136 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
137 * for non-aa sizes, but we can go down to 0.0 for aa points.
138 */
139 c->MinPointSize = 1.0f;
140 c->MinPointSizeAA = 0.0f;
141
142 c->MaxTextureMaxAnisotropy =
143 _maxf(2.0f,
144 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
145
146 c->MaxTextureLodBias =
147 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
148
149 c->QuadsFollowProvokingVertexConvention =
150 screen->get_param(screen,
151 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
152
153 c->MaxUniformBlockSize =
154 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
155 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
156 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
157 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
158 */
159 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
160
161 if (c->MaxUniformBlockSize < 16384) {
162 can_ubo = false;
163 }
164
165 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
166 struct gl_shader_compiler_options *options;
167 struct gl_program_constants *pc;
168 const nir_shader_compiler_options *nir_options = NULL;
169
170 if (screen->get_compiler_options) {
171 nir_options = (const nir_shader_compiler_options *)
172 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
173 }
174
175 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
176 pc = &c->Program[stage];
177 options = &c->ShaderCompilerOptions[stage];
178 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
179
180 if (sh == PIPE_SHADER_COMPUTE) {
181 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
182 continue;
183 supported_irs =
184 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
185 if (!(supported_irs & (1 << PIPE_SHADER_IR_TGSI)))
186 continue;
187 }
188
189 pc->MaxTextureImageUnits =
190 _min(screen->get_shader_param(screen, sh,
191 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
192 MAX_TEXTURE_IMAGE_UNITS);
193
194 pc->MaxInstructions =
195 pc->MaxNativeInstructions =
196 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
197 pc->MaxAluInstructions =
198 pc->MaxNativeAluInstructions =
199 screen->get_shader_param(screen, sh,
200 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
201 pc->MaxTexInstructions =
202 pc->MaxNativeTexInstructions =
203 screen->get_shader_param(screen, sh,
204 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
205 pc->MaxTexIndirections =
206 pc->MaxNativeTexIndirections =
207 screen->get_shader_param(screen, sh,
208 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
209 pc->MaxAttribs =
210 pc->MaxNativeAttribs =
211 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
212 pc->MaxTemps =
213 pc->MaxNativeTemps =
214 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
215 pc->MaxAddressRegs =
216 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
217
218 pc->MaxUniformComponents =
219 screen->get_shader_param(screen, sh,
220 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / 4;
221 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
222 MAX_UNIFORMS * 4);
223
224 pc->MaxParameters =
225 pc->MaxNativeParameters = pc->MaxUniformComponents / 4;
226 pc->MaxInputComponents =
227 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
228 pc->MaxOutputComponents =
229 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
230
231
232 pc->MaxUniformBlocks =
233 screen->get_shader_param(screen, sh,
234 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
235 if (pc->MaxUniformBlocks)
236 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
237 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
238
239 pc->MaxCombinedUniformComponents =
240 pc->MaxUniformComponents +
241 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
242
243 pc->MaxShaderStorageBlocks =
244 screen->get_shader_param(screen, sh,
245 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
246
247 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
248 if (temp) {
249 /*
250 * for separate atomic counters get the actual hw limits
251 * per stage on atomic counters and buffers
252 */
253 pc->MaxAtomicCounters = temp;
254 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
255 } else {
256 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
257 /*
258 * without separate atomic counters, reserve half of the available
259 * SSBOs for atomic buffers, and the other half for normal SSBOs.
260 */
261 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
262 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
263 }
264 pc->MaxImageUniforms = screen->get_shader_param(
265 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
266
267 /* Gallium doesn't really care about local vs. env parameters so use the
268 * same limits.
269 */
270 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
271 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
272
273 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
274 pc->LowInt.RangeMin = 31;
275 pc->LowInt.RangeMax = 30;
276 pc->LowInt.Precision = 0;
277 pc->MediumInt = pc->HighInt = pc->LowInt;
278 }
279
280 /* TODO: make these more fine-grained if anyone needs it */
281 options->MaxIfDepth =
282 screen->get_shader_param(screen, sh,
283 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
284 options->EmitNoLoops =
285 !screen->get_shader_param(screen, sh,
286 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
287 options->EmitNoMainReturn =
288 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
289
290 options->EmitNoCont =
291 !screen->get_shader_param(screen, sh,
292 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
293
294 options->EmitNoIndirectInput =
295 !screen->get_shader_param(screen, sh,
296 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
297 options->EmitNoIndirectOutput =
298 !screen->get_shader_param(screen, sh,
299 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
300 options->EmitNoIndirectTemp =
301 !screen->get_shader_param(screen, sh,
302 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
303 options->EmitNoIndirectUniform =
304 !screen->get_shader_param(screen, sh,
305 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
306
307 if (pc->MaxNativeInstructions &&
308 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
309 can_ubo = false;
310 }
311
312 if (options->EmitNoLoops)
313 options->MaxUnrollIterations =
314 MIN2(screen->get_shader_param(screen, sh,
315 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
316 65536);
317 else
318 options->MaxUnrollIterations =
319 screen->get_shader_param(screen, sh,
320 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
321
322 options->LowerCombinedClipCullDistance = true;
323 options->LowerBufferInterfaceBlocks = true;
324 }
325
326 c->MaxUserAssignableUniformLocations =
327 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
328 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
329 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
330 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
331 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
332
333 c->GLSLOptimizeConservatively =
334 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
335 c->LowerTessLevel = true;
336 c->LowerCsDerivedVariables = true;
337 c->PrimitiveRestartForPatches =
338 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
339
340 c->MaxCombinedTextureImageUnits =
341 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
342 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
343 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
344 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
345 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
346 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
347 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
348
349 /* This depends on program constants. */
350 c->MaxTextureCoordUnits
351 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
352 MAX_TEXTURE_COORD_UNITS);
353
354 c->MaxTextureUnits =
355 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
356 c->MaxTextureCoordUnits);
357
358 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
359 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
360
361 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
362 * of inputs. It's always 2 colors + N generic inputs. */
363 c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
364 PIPE_SHADER_CAP_MAX_INPUTS);
365 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
366 c->MaxGeometryOutputVertices =
367 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
368 c->MaxGeometryTotalOutputComponents =
369 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
370 c->MaxGeometryShaderInvocations =
371 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
372 c->MaxTessPatchComponents =
373 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
374 MAX_VARYING) * 4;
375
376 c->MinProgramTexelOffset =
377 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
378 c->MaxProgramTexelOffset =
379 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
380
381 c->MaxProgramTextureGatherComponents =
382 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
383 c->MinProgramTextureGatherOffset =
384 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
385 c->MaxProgramTextureGatherOffset =
386 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
387
388 c->MaxTransformFeedbackBuffers =
389 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
390 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
391 MAX_FEEDBACK_BUFFERS);
392 c->MaxTransformFeedbackSeparateComponents =
393 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
394 c->MaxTransformFeedbackInterleavedComponents =
395 screen->get_param(screen,
396 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
397 c->MaxVertexStreams =
398 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
399
400 /* The vertex stream must fit into pipe_stream_output_info::stream */
401 assert(c->MaxVertexStreams <= 4);
402
403 c->MaxVertexAttribStride
404 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
405
406 c->StripTextureBorder = GL_TRUE;
407
408 c->GLSLSkipStrictMaxUniformLimitCheck =
409 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
410
411 c->UniformBufferOffsetAlignment =
412 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
413
414 if (can_ubo) {
415 extensions->ARB_uniform_buffer_object = GL_TRUE;
416 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
417 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
418 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
419 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
420 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
421 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
422 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
423 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
424 }
425
426 c->GLSLFragCoordIsSysVal =
427 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
428 c->GLSLFrontFacingIsSysVal =
429 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
430
431 /* GL_ARB_get_program_binary
432 *
433 * The QT framework has a bug in their shader program cache, which is built
434 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
435 * we don't enable more than 1 binary format for compatibility profiles.
436 */
437 if (api != API_OPENGL_COMPAT &&
438 screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
439 c->NumProgramBinaryFormats = 1;
440
441 c->MaxAtomicBufferBindings =
442 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
443 c->MaxAtomicBufferSize =
444 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
445
446 c->MaxCombinedAtomicBuffers =
447 MIN2(screen->get_param(screen,
448 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
449 MAX_COMBINED_ATOMIC_BUFFERS);
450 if (!c->MaxCombinedAtomicBuffers) {
451 c->MaxCombinedAtomicBuffers =
452 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
453 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
454 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
455 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
456 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
457 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
458 }
459
460 c->MaxCombinedAtomicCounters =
461 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
462 if (!c->MaxCombinedAtomicCounters)
463 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
464
465 if (c->MaxCombinedAtomicBuffers > 0) {
466 extensions->ARB_shader_atomic_counters = GL_TRUE;
467 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
468 }
469
470 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
471 c->ShaderStorageBufferOffsetAlignment =
472 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
473 if (c->ShaderStorageBufferOffsetAlignment) {
474 c->MaxCombinedShaderStorageBlocks =
475 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
476 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
477 if (!c->MaxCombinedShaderStorageBlocks) {
478 c->MaxCombinedShaderStorageBlocks =
479 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
480 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
481 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
482 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
483 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
484 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
485 }
486 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
487
488 c->MaxCombinedShaderOutputResources +=
489 c->MaxCombinedShaderStorageBlocks;
490 c->MaxShaderStorageBlockSize =
491 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
492 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
493 }
494
495 c->MaxCombinedImageUniforms =
496 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
497 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
498 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
499 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
500 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
501 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
502 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
503 c->MaxImageUnits = MAX_IMAGE_UNITS;
504 if (c->MaxCombinedImageUniforms) {
505 extensions->ARB_shader_image_load_store = GL_TRUE;
506 extensions->ARB_shader_image_size = GL_TRUE;
507 }
508
509 /* ARB_framebuffer_no_attachments */
510 c->MaxFramebufferWidth = c->MaxViewportWidth;
511 c->MaxFramebufferHeight = c->MaxViewportHeight;
512 /* NOTE: we cheat here a little by assuming that
513 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
514 * number of layers as we need, although we technically
515 * could have more the generality is not really useful
516 * in practicality.
517 */
518 c->MaxFramebufferLayers =
519 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
520
521 c->MaxWindowRectangles =
522 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
523
524 c->SparseBufferPageSize =
525 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
526
527 c->AllowMappedBuffersDuringExecution =
528 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
529
530 c->UseSTD430AsDefaultPacking =
531 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
532
533 c->MaxSubpixelPrecisionBiasBits =
534 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
535
536 c->ConservativeRasterDilateRange[0] =
537 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
538 c->ConservativeRasterDilateRange[1] =
539 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
540 c->ConservativeRasterDilateGranularity =
541 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
542
543 /* limit the max combined shader output resources to a driver limit */
544 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
545 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
546 c->MaxCombinedShaderOutputResources = temp;
547 }
548
549
550 /**
551 * Given a member \c x of struct gl_extensions, return offset of
552 * \c x in bytes.
553 */
554 #define o(x) offsetof(struct gl_extensions, x)
555
556
557 struct st_extension_cap_mapping {
558 int extension_offset;
559 int cap;
560 };
561
562 struct st_extension_format_mapping {
563 int extension_offset[2];
564 enum pipe_format format[32];
565
566 /* If TRUE, at least one format must be supported for the extensions to be
567 * advertised. If FALSE, all the formats must be supported. */
568 GLboolean need_at_least_one;
569 };
570
571 /**
572 * Enable extensions if certain pipe formats are supported by the driver.
573 * What extensions will be enabled and what formats must be supported is
574 * described by the array of st_extension_format_mapping.
575 *
576 * target and bind_flags are passed to is_format_supported.
577 */
578 static void
579 init_format_extensions(struct pipe_screen *screen,
580 struct gl_extensions *extensions,
581 const struct st_extension_format_mapping *mapping,
582 unsigned num_mappings,
583 enum pipe_texture_target target,
584 unsigned bind_flags)
585 {
586 GLboolean *extension_table = (GLboolean *) extensions;
587 unsigned i;
588 int j;
589 int num_formats = ARRAY_SIZE(mapping->format);
590 int num_ext = ARRAY_SIZE(mapping->extension_offset);
591
592 for (i = 0; i < num_mappings; i++) {
593 int num_supported = 0;
594
595 /* Examine each format in the list. */
596 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
597 if (screen->is_format_supported(screen, mapping[i].format[j],
598 target, 0, 0, bind_flags)) {
599 num_supported++;
600 }
601 }
602
603 if (!num_supported ||
604 (!mapping[i].need_at_least_one && num_supported != j)) {
605 continue;
606 }
607
608 /* Enable all extensions in the list. */
609 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
610 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
611 }
612 }
613
614
615 /**
616 * Given a list of formats and bind flags, return the maximum number
617 * of samples supported by any of those formats.
618 */
619 static unsigned
620 get_max_samples_for_formats(struct pipe_screen *screen,
621 unsigned num_formats,
622 const enum pipe_format *formats,
623 unsigned max_samples,
624 unsigned bind)
625 {
626 unsigned i, f;
627
628 for (i = max_samples; i > 0; --i) {
629 for (f = 0; f < num_formats; f++) {
630 if (screen->is_format_supported(screen, formats[f],
631 PIPE_TEXTURE_2D, i, i, bind)) {
632 return i;
633 }
634 }
635 }
636 return 0;
637 }
638
639 static unsigned
640 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
641 unsigned num_formats,
642 const enum pipe_format *formats,
643 unsigned max_samples,
644 unsigned num_storage_samples,
645 unsigned bind)
646 {
647 unsigned i, f;
648
649 for (i = max_samples; i > 0; --i) {
650 for (f = 0; f < num_formats; f++) {
651 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
652 i, num_storage_samples, bind)) {
653 return i;
654 }
655 }
656 }
657 return 0;
658 }
659
660 /**
661 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
662 * which GL extensions are supported.
663 * Quite a few extensions are always supported because they are standard
664 * features or can be built on top of other gallium features.
665 * Some fine tuning may still be needed.
666 */
667 void st_init_extensions(struct pipe_screen *screen,
668 struct gl_constants *consts,
669 struct gl_extensions *extensions,
670 struct st_config_options *options,
671 gl_api api)
672 {
673 unsigned i;
674 GLboolean *extension_table = (GLboolean *) extensions;
675
676 static const struct st_extension_cap_mapping cap_mapping[] = {
677 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
678 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
679 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
680 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
681 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
682 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
683 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
684 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
685 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
686 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
687 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
688 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
689 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
690 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
691 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
692 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
693 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
694 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
695 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
696 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
697 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
698 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
699 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
700 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
701 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
702 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
703 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
704 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
705 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
706 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
707 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
708 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
709 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
710 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
711 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
712 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
713 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
714 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
715 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
716 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
717 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
718 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
719 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
720 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
721 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
722 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
723 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
724 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
725 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
726 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
727
728 { o(KHR_blend_equation_advanced), PIPE_CAP_TGSI_FS_FBFETCH },
729
730 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
731 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
732 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
733 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
734 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
735 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
736 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
737 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
738 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
739 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
740 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
741 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
742 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
743 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
744
745 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
746 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
747 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
748 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
749 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
750 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
751 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
752 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
753 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
754 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
755 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
756 /* GL_NV_point_sprite is not supported by gallium because we don't
757 * support the GL_POINT_SPRITE_R_MODE_NV option. */
758
759 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
760 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
761 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
762 };
763
764 /* Required: render target and sampler support */
765 static const struct st_extension_format_mapping rendertarget_mapping[] = {
766 { { o(ARB_texture_float) },
767 { PIPE_FORMAT_R32G32B32A32_FLOAT,
768 PIPE_FORMAT_R16G16B16A16_FLOAT } },
769
770 { { o(OES_texture_float) },
771 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
772
773 { { o(OES_texture_half_float) },
774 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
775
776 { { o(ARB_texture_rgb10_a2ui) },
777 { PIPE_FORMAT_R10G10B10A2_UINT,
778 PIPE_FORMAT_B10G10R10A2_UINT },
779 GL_TRUE }, /* at least one format must be supported */
780
781 { { o(EXT_framebuffer_sRGB) },
782 { PIPE_FORMAT_A8B8G8R8_SRGB,
783 PIPE_FORMAT_B8G8R8A8_SRGB,
784 PIPE_FORMAT_R8G8B8A8_SRGB },
785 GL_TRUE }, /* at least one format must be supported */
786
787 { { o(EXT_packed_float) },
788 { PIPE_FORMAT_R11G11B10_FLOAT } },
789
790 { { o(EXT_texture_integer) },
791 { PIPE_FORMAT_R32G32B32A32_UINT,
792 PIPE_FORMAT_R32G32B32A32_SINT } },
793
794 { { o(ARB_texture_rg) },
795 { PIPE_FORMAT_R8_UNORM,
796 PIPE_FORMAT_R8G8_UNORM } },
797 };
798
799 /* Required: depth stencil and sampler support */
800 static const struct st_extension_format_mapping depthstencil_mapping[] = {
801 { { o(ARB_depth_buffer_float) },
802 { PIPE_FORMAT_Z32_FLOAT,
803 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
804 };
805
806 /* Required: sampler support */
807 static const struct st_extension_format_mapping texture_mapping[] = {
808 { { o(ARB_texture_compression_rgtc) },
809 { PIPE_FORMAT_RGTC1_UNORM,
810 PIPE_FORMAT_RGTC1_SNORM,
811 PIPE_FORMAT_RGTC2_UNORM,
812 PIPE_FORMAT_RGTC2_SNORM } },
813
814 { { o(EXT_texture_compression_latc) },
815 { PIPE_FORMAT_LATC1_UNORM,
816 PIPE_FORMAT_LATC1_SNORM,
817 PIPE_FORMAT_LATC2_UNORM,
818 PIPE_FORMAT_LATC2_SNORM } },
819
820 { { o(EXT_texture_compression_s3tc),
821 o(ANGLE_texture_compression_dxt) },
822 { PIPE_FORMAT_DXT1_RGB,
823 PIPE_FORMAT_DXT1_RGBA,
824 PIPE_FORMAT_DXT3_RGBA,
825 PIPE_FORMAT_DXT5_RGBA } },
826
827 { { o(ARB_texture_compression_bptc) },
828 { PIPE_FORMAT_BPTC_RGBA_UNORM,
829 PIPE_FORMAT_BPTC_SRGBA,
830 PIPE_FORMAT_BPTC_RGB_FLOAT,
831 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
832
833 { { o(KHR_texture_compression_astc_ldr),
834 o(KHR_texture_compression_astc_sliced_3d) },
835 { PIPE_FORMAT_ASTC_4x4,
836 PIPE_FORMAT_ASTC_5x4,
837 PIPE_FORMAT_ASTC_5x5,
838 PIPE_FORMAT_ASTC_6x5,
839 PIPE_FORMAT_ASTC_6x6,
840 PIPE_FORMAT_ASTC_8x5,
841 PIPE_FORMAT_ASTC_8x6,
842 PIPE_FORMAT_ASTC_8x8,
843 PIPE_FORMAT_ASTC_10x5,
844 PIPE_FORMAT_ASTC_10x6,
845 PIPE_FORMAT_ASTC_10x8,
846 PIPE_FORMAT_ASTC_10x10,
847 PIPE_FORMAT_ASTC_12x10,
848 PIPE_FORMAT_ASTC_12x12,
849 PIPE_FORMAT_ASTC_4x4_SRGB,
850 PIPE_FORMAT_ASTC_5x4_SRGB,
851 PIPE_FORMAT_ASTC_5x5_SRGB,
852 PIPE_FORMAT_ASTC_6x5_SRGB,
853 PIPE_FORMAT_ASTC_6x6_SRGB,
854 PIPE_FORMAT_ASTC_8x5_SRGB,
855 PIPE_FORMAT_ASTC_8x6_SRGB,
856 PIPE_FORMAT_ASTC_8x8_SRGB,
857 PIPE_FORMAT_ASTC_10x5_SRGB,
858 PIPE_FORMAT_ASTC_10x6_SRGB,
859 PIPE_FORMAT_ASTC_10x8_SRGB,
860 PIPE_FORMAT_ASTC_10x10_SRGB,
861 PIPE_FORMAT_ASTC_12x10_SRGB,
862 PIPE_FORMAT_ASTC_12x12_SRGB } },
863
864 /* ASTC software fallback support. */
865 { { o(KHR_texture_compression_astc_ldr),
866 o(KHR_texture_compression_astc_sliced_3d) },
867 { PIPE_FORMAT_R8G8B8A8_UNORM,
868 PIPE_FORMAT_R8G8B8A8_SRGB } },
869
870 { { o(EXT_texture_shared_exponent) },
871 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
872
873 { { o(EXT_texture_snorm) },
874 { PIPE_FORMAT_R8G8B8A8_SNORM } },
875
876 { { o(EXT_texture_sRGB),
877 o(EXT_texture_sRGB_decode) },
878 { PIPE_FORMAT_A8B8G8R8_SRGB,
879 PIPE_FORMAT_B8G8R8A8_SRGB,
880 PIPE_FORMAT_A8R8G8B8_SRGB,
881 PIPE_FORMAT_R8G8B8A8_SRGB},
882 GL_TRUE }, /* at least one format must be supported */
883
884 { { o(EXT_texture_type_2_10_10_10_REV) },
885 { PIPE_FORMAT_R10G10B10A2_UNORM,
886 PIPE_FORMAT_B10G10R10A2_UNORM },
887 GL_TRUE }, /* at least one format must be supported */
888
889 { { o(ATI_texture_compression_3dc) },
890 { PIPE_FORMAT_LATC2_UNORM } },
891
892 { { o(MESA_ycbcr_texture) },
893 { PIPE_FORMAT_UYVY,
894 PIPE_FORMAT_YUYV },
895 GL_TRUE }, /* at least one format must be supported */
896
897 { { o(OES_compressed_ETC1_RGB8_texture) },
898 { PIPE_FORMAT_ETC1_RGB8,
899 PIPE_FORMAT_R8G8B8A8_UNORM },
900 GL_TRUE }, /* at least one format must be supported */
901
902 { { o(ARB_stencil_texturing),
903 o(ARB_texture_stencil8) },
904 { PIPE_FORMAT_X24S8_UINT,
905 PIPE_FORMAT_S8X24_UINT },
906 GL_TRUE }, /* at least one format must be supported */
907 };
908
909 /* Required: vertex fetch support. */
910 static const struct st_extension_format_mapping vertex_mapping[] = {
911 { { o(EXT_vertex_array_bgra) },
912 { PIPE_FORMAT_B8G8R8A8_UNORM } },
913 { { o(ARB_vertex_type_2_10_10_10_rev) },
914 { PIPE_FORMAT_R10G10B10A2_UNORM,
915 PIPE_FORMAT_B10G10R10A2_UNORM,
916 PIPE_FORMAT_R10G10B10A2_SNORM,
917 PIPE_FORMAT_B10G10R10A2_SNORM,
918 PIPE_FORMAT_R10G10B10A2_USCALED,
919 PIPE_FORMAT_B10G10R10A2_USCALED,
920 PIPE_FORMAT_R10G10B10A2_SSCALED,
921 PIPE_FORMAT_B10G10R10A2_SSCALED } },
922 { { o(ARB_vertex_type_10f_11f_11f_rev) },
923 { PIPE_FORMAT_R11G11B10_FLOAT } },
924 };
925
926 static const struct st_extension_format_mapping tbo_rgb32[] = {
927 { {o(ARB_texture_buffer_object_rgb32) },
928 { PIPE_FORMAT_R32G32B32_FLOAT,
929 PIPE_FORMAT_R32G32B32_UINT,
930 PIPE_FORMAT_R32G32B32_SINT,
931 } },
932 };
933
934 /*
935 * Extensions that are supported by all Gallium drivers:
936 */
937 extensions->ARB_ES2_compatibility = GL_TRUE;
938 extensions->ARB_depth_texture = GL_TRUE;
939 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
940 extensions->ARB_explicit_attrib_location = GL_TRUE;
941 extensions->ARB_explicit_uniform_location = GL_TRUE;
942 extensions->ARB_fragment_coord_conventions = GL_TRUE;
943 extensions->ARB_fragment_program = GL_TRUE;
944 extensions->ARB_fragment_program_shadow = GL_TRUE;
945 extensions->ARB_fragment_shader = GL_TRUE;
946 extensions->ARB_half_float_vertex = GL_TRUE;
947 extensions->ARB_internalformat_query = GL_TRUE;
948 extensions->ARB_internalformat_query2 = GL_TRUE;
949 extensions->ARB_map_buffer_range = GL_TRUE;
950 extensions->ARB_shadow = GL_TRUE;
951 extensions->ARB_sync = GL_TRUE;
952 extensions->ARB_texture_border_clamp = GL_TRUE;
953 extensions->ARB_texture_cube_map = GL_TRUE;
954 extensions->ARB_texture_env_combine = GL_TRUE;
955 extensions->ARB_texture_env_crossbar = GL_TRUE;
956 extensions->ARB_texture_env_dot3 = GL_TRUE;
957 extensions->ARB_vertex_program = GL_TRUE;
958 extensions->ARB_vertex_shader = GL_TRUE;
959
960 extensions->EXT_blend_color = GL_TRUE;
961 extensions->EXT_blend_func_separate = GL_TRUE;
962 extensions->EXT_blend_minmax = GL_TRUE;
963 extensions->EXT_gpu_program_parameters = GL_TRUE;
964 extensions->EXT_pixel_buffer_object = GL_TRUE;
965 extensions->EXT_point_parameters = GL_TRUE;
966 extensions->EXT_provoking_vertex = GL_TRUE;
967 extensions->EXT_stencil_two_side = GL_TRUE;
968 extensions->EXT_texture_env_dot3 = GL_TRUE;
969
970 extensions->ATI_fragment_shader = GL_TRUE;
971 extensions->ATI_texture_env_combine3 = GL_TRUE;
972
973 extensions->MESA_pack_invert = GL_TRUE;
974
975 extensions->NV_fog_distance = GL_TRUE;
976 extensions->NV_texture_env_combine4 = GL_TRUE;
977 extensions->NV_texture_rectangle = GL_TRUE;
978
979 extensions->OES_EGL_image = GL_TRUE;
980 extensions->OES_EGL_image_external = GL_TRUE;
981 extensions->OES_draw_texture = GL_TRUE;
982
983 /* Expose the extensions which directly correspond to gallium caps. */
984 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
985 if (screen->get_param(screen, cap_mapping[i].cap)) {
986 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
987 }
988 }
989
990 /* Expose the extensions which directly correspond to gallium formats. */
991 init_format_extensions(screen, extensions, rendertarget_mapping,
992 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
993 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
994 init_format_extensions(screen, extensions, depthstencil_mapping,
995 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
996 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
997 init_format_extensions(screen, extensions, texture_mapping,
998 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
999 PIPE_BIND_SAMPLER_VIEW);
1000 init_format_extensions(screen, extensions, vertex_mapping,
1001 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1002 PIPE_BIND_VERTEX_BUFFER);
1003
1004 /* Figure out GLSL support and set GLSLVersion to it. */
1005 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1006 consts->GLSLVersionCompat =
1007 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1008
1009 const unsigned GLSLVersion =
1010 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1011 consts->GLSLVersion;
1012
1013 _mesa_override_glsl_version(consts);
1014
1015 if (options->force_glsl_version > 0 &&
1016 options->force_glsl_version <= GLSLVersion) {
1017 consts->ForceGLSLVersion = options->force_glsl_version;
1018 }
1019
1020 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1021
1022 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1023
1024 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1025
1026 consts->dri_config_options_sha1 = options->config_options_sha1;
1027
1028 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1029
1030 if (GLSLVersion >= 400)
1031 extensions->ARB_gpu_shader5 = GL_TRUE;
1032 if (GLSLVersion >= 410)
1033 extensions->ARB_shader_precision = GL_TRUE;
1034
1035 /* This extension needs full OpenGL 3.2, but we don't know if that's
1036 * supported at this point. Only check the GLSL version. */
1037 if (GLSLVersion >= 150 &&
1038 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1039 extensions->AMD_vertex_shader_layer = GL_TRUE;
1040 }
1041
1042 if (GLSLVersion >= 140) {
1043 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1044 extensions->ARB_enhanced_layouts = GL_TRUE;
1045 }
1046
1047 if (GLSLVersion >= 130) {
1048 consts->NativeIntegers = GL_TRUE;
1049 consts->MaxClipPlanes = 8;
1050
1051 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1052 consts->VertexID_is_zero_based = GL_TRUE;
1053 }
1054
1055 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1056 extensions->ARB_conservative_depth = GL_TRUE;
1057 extensions->ARB_shading_language_packing = GL_TRUE;
1058 extensions->OES_depth_texture_cube_map = GL_TRUE;
1059 extensions->ARB_shading_language_420pack = GL_TRUE;
1060 extensions->ARB_texture_query_levels = GL_TRUE;
1061
1062 extensions->ARB_shader_bit_encoding = GL_TRUE;
1063
1064 extensions->EXT_shader_integer_mix = GL_TRUE;
1065 extensions->ARB_arrays_of_arrays = GL_TRUE;
1066 extensions->MESA_shader_integer_functions = GL_TRUE;
1067 } else {
1068 /* Optional integer support for GLSL 1.2. */
1069 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1070 PIPE_SHADER_CAP_INTEGERS) &&
1071 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1072 PIPE_SHADER_CAP_INTEGERS)) {
1073 consts->NativeIntegers = GL_TRUE;
1074
1075 extensions->EXT_shader_integer_mix = GL_TRUE;
1076 }
1077
1078 /* Integer textures make no sense before GLSL 1.30 */
1079 extensions->EXT_texture_integer = GL_FALSE;
1080 }
1081
1082 consts->GLSLZeroInit = options->glsl_zero_init;
1083
1084 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1085
1086 /* Below are the cases which cannot be moved into tables easily. */
1087
1088 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1089 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1090 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1091 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1092 extensions->ARB_tessellation_shader = GL_TRUE;
1093 }
1094
1095 /* What this is really checking for is the ability to support multiple
1096 * invocations of a geometry shader. There is no separate cap for that, so
1097 * we check the GLSLVersion.
1098 */
1099 if (GLSLVersion >= 400 &&
1100 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1101 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1102 extensions->OES_geometry_shader = GL_TRUE;
1103 }
1104
1105 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1106 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1107 */
1108 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1109 extensions->ARB_gpu_shader5;
1110
1111 /* Maximum sample count. */
1112 {
1113 static const enum pipe_format color_formats[] = {
1114 PIPE_FORMAT_R8G8B8A8_UNORM,
1115 PIPE_FORMAT_B8G8R8A8_UNORM,
1116 PIPE_FORMAT_A8R8G8B8_UNORM,
1117 PIPE_FORMAT_A8B8G8R8_UNORM,
1118 };
1119 static const enum pipe_format depth_formats[] = {
1120 PIPE_FORMAT_Z16_UNORM,
1121 PIPE_FORMAT_Z24X8_UNORM,
1122 PIPE_FORMAT_X8Z24_UNORM,
1123 PIPE_FORMAT_Z32_UNORM,
1124 PIPE_FORMAT_Z32_FLOAT
1125 };
1126 static const enum pipe_format int_formats[] = {
1127 PIPE_FORMAT_R8G8B8A8_SINT
1128 };
1129 static const enum pipe_format void_formats[] = {
1130 PIPE_FORMAT_NONE
1131 };
1132
1133 consts->MaxSamples =
1134 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1135 color_formats, 16,
1136 PIPE_BIND_RENDER_TARGET);
1137
1138 consts->MaxImageSamples =
1139 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1140 color_formats, 16,
1141 PIPE_BIND_SHADER_IMAGE);
1142
1143 consts->MaxColorTextureSamples =
1144 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1145 color_formats, consts->MaxSamples,
1146 PIPE_BIND_SAMPLER_VIEW);
1147
1148 consts->MaxDepthTextureSamples =
1149 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1150 depth_formats, consts->MaxSamples,
1151 PIPE_BIND_SAMPLER_VIEW);
1152
1153 consts->MaxIntegerSamples =
1154 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1155 int_formats, consts->MaxSamples,
1156 PIPE_BIND_SAMPLER_VIEW);
1157
1158 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1159 consts->MaxFramebufferSamples =
1160 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1161 void_formats, 32,
1162 PIPE_BIND_RENDER_TARGET);
1163
1164 if (extensions->AMD_framebuffer_multisample_advanced) {
1165 /* AMD_framebuffer_multisample_advanced */
1166 /* This can be greater than storage samples. */
1167 consts->MaxColorFramebufferSamples =
1168 get_max_samples_for_formats_advanced(screen,
1169 ARRAY_SIZE(color_formats),
1170 color_formats, 16,
1171 consts->MaxSamples,
1172 PIPE_BIND_RENDER_TARGET);
1173
1174 /* If the driver supports N color samples, it means it supports
1175 * N samples and N storage samples. N samples >= N storage
1176 * samples.
1177 */
1178 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1179 consts->MaxDepthStencilFramebufferSamples =
1180 consts->MaxDepthTextureSamples;
1181
1182 assert(consts->MaxColorFramebufferSamples >=
1183 consts->MaxDepthStencilFramebufferSamples);
1184 assert(consts->MaxDepthStencilFramebufferSamples >=
1185 consts->MaxColorFramebufferStorageSamples);
1186
1187 consts->NumSupportedMultisampleModes = 0;
1188
1189 unsigned depth_samples_supported = 0;
1190
1191 for (unsigned samples = 2;
1192 samples <= consts->MaxDepthStencilFramebufferSamples;
1193 samples++) {
1194 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1195 PIPE_TEXTURE_2D, samples, samples,
1196 PIPE_BIND_DEPTH_STENCIL))
1197 depth_samples_supported |= 1 << samples;
1198 }
1199
1200 for (unsigned samples = 2;
1201 samples <= consts->MaxColorFramebufferSamples;
1202 samples++) {
1203 for (unsigned depth_samples = 2;
1204 depth_samples <= samples; depth_samples++) {
1205 if (!(depth_samples_supported & (1 << depth_samples)))
1206 continue;
1207
1208 for (unsigned storage_samples = 2;
1209 storage_samples <= depth_samples; storage_samples++) {
1210 if (screen->is_format_supported(screen,
1211 PIPE_FORMAT_R8G8B8A8_UNORM,
1212 PIPE_TEXTURE_2D,
1213 samples,
1214 storage_samples,
1215 PIPE_BIND_RENDER_TARGET)) {
1216 unsigned i = consts->NumSupportedMultisampleModes;
1217
1218 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1219 consts->SupportedMultisampleModes[i].NumColorSamples =
1220 samples;
1221 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1222 storage_samples;
1223 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1224 depth_samples;
1225 consts->NumSupportedMultisampleModes++;
1226 }
1227 }
1228 }
1229 }
1230 }
1231 }
1232
1233 if (consts->MaxSamples >= 2) {
1234 /* Real MSAA support */
1235 extensions->EXT_framebuffer_multisample = GL_TRUE;
1236 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1237 }
1238 else if (consts->MaxSamples > 0 &&
1239 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1240 /* fake MSAA support */
1241 consts->FakeSWMSAA = GL_TRUE;
1242 extensions->EXT_framebuffer_multisample = GL_TRUE;
1243 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1244 extensions->ARB_texture_multisample = GL_TRUE;
1245 }
1246
1247 if (consts->MaxDualSourceDrawBuffers > 0 &&
1248 !options->disable_blend_func_extended)
1249 extensions->ARB_blend_func_extended = GL_TRUE;
1250
1251 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1252 extensions->ARB_timer_query) {
1253 extensions->EXT_timer_query = GL_TRUE;
1254 }
1255
1256 if (extensions->ARB_transform_feedback2 &&
1257 extensions->ARB_draw_instanced) {
1258 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1259 }
1260 if (options->force_glsl_extensions_warn)
1261 consts->ForceGLSLExtensionsWarn = 1;
1262
1263 if (options->disable_glsl_line_continuations)
1264 consts->DisableGLSLLineContinuations = 1;
1265
1266 if (options->allow_glsl_extension_directive_midshader)
1267 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1268
1269 if (options->allow_glsl_builtin_const_expression)
1270 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1271
1272 if (options->allow_glsl_relaxed_es)
1273 consts->AllowGLSLRelaxedES = GL_TRUE;
1274
1275 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1276 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1277
1278 consts->MinMapBufferAlignment =
1279 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1280
1281 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1282 if (api == API_OPENGL_COMPAT &&
1283 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1284 extensions->ARB_texture_buffer_object = GL_FALSE;
1285
1286 if (extensions->ARB_texture_buffer_object) {
1287 consts->MaxTextureBufferSize =
1288 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1289 (1u << 31) - 1);
1290 consts->TextureBufferOffsetAlignment =
1291 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1292
1293 if (consts->TextureBufferOffsetAlignment)
1294 extensions->ARB_texture_buffer_range = GL_TRUE;
1295
1296 init_format_extensions(screen, extensions, tbo_rgb32,
1297 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1298 PIPE_BIND_SAMPLER_VIEW);
1299 }
1300
1301 extensions->OES_texture_buffer =
1302 extensions->ARB_texture_buffer_object &&
1303 extensions->ARB_texture_buffer_range &&
1304 extensions->ARB_texture_buffer_object_rgb32 &&
1305 extensions->ARB_shader_image_load_store;
1306
1307 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1308 * If the number of available texture indirections is very limited, then we
1309 * prefer to disable varying packing rather than run the risk of varying
1310 * packing preventing a shader from running.
1311 */
1312 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1313 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1314 /* We can't disable varying packing if transform feedback is available,
1315 * because transform feedback code assumes a packed varying layout.
1316 */
1317 if (!extensions->EXT_transform_feedback)
1318 consts->DisableVaryingPacking = GL_TRUE;
1319 }
1320
1321 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1322 if (consts->MaxViewports >= 16) {
1323 if (GLSLVersion >= 400) {
1324 consts->ViewportBounds.Min = -32768.0;
1325 consts->ViewportBounds.Max = 32767.0;
1326 } else {
1327 consts->ViewportBounds.Min = -16384.0;
1328 consts->ViewportBounds.Max = 16383.0;
1329 }
1330 extensions->ARB_viewport_array = GL_TRUE;
1331 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1332 if (extensions->AMD_vertex_shader_layer)
1333 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1334 }
1335
1336 if (extensions->AMD_vertex_shader_layer &&
1337 extensions->AMD_vertex_shader_viewport_index &&
1338 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1339 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1340
1341 /* ARB_framebuffer_no_attachments */
1342 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1343 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1344 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1345 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1346 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1347
1348 /* GL_ARB_ES3_compatibility.
1349 * Check requirements for GLSL ES 3.00.
1350 */
1351 if (GLSLVersion >= 130 &&
1352 extensions->ARB_uniform_buffer_object &&
1353 extensions->ARB_shader_bit_encoding &&
1354 extensions->NV_primitive_restart &&
1355 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1356 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1357 /* Requirements for ETC2 emulation. */
1358 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1359 PIPE_TEXTURE_2D, 0, 0,
1360 PIPE_BIND_SAMPLER_VIEW) &&
1361 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1362 PIPE_TEXTURE_2D, 0, 0,
1363 PIPE_BIND_SAMPLER_VIEW) &&
1364 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1365 PIPE_TEXTURE_2D, 0, 0,
1366 PIPE_BIND_SAMPLER_VIEW) &&
1367 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1368 PIPE_TEXTURE_2D, 0, 0,
1369 PIPE_BIND_SAMPLER_VIEW) &&
1370 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1371 PIPE_TEXTURE_2D, 0, 0,
1372 PIPE_BIND_SAMPLER_VIEW) &&
1373 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1374 PIPE_TEXTURE_2D, 0, 0,
1375 PIPE_BIND_SAMPLER_VIEW)) {
1376 extensions->ARB_ES3_compatibility = GL_TRUE;
1377 }
1378
1379 #ifdef HAVE_ST_VDPAU
1380 if (screen->get_video_param &&
1381 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1382 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1383 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1384 extensions->NV_vdpau_interop = GL_TRUE;
1385 }
1386 #endif
1387
1388 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1389 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1390 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1391 }
1392
1393 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1394 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1395 extensions->GREMEDY_string_marker = GL_TRUE;
1396
1397 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1398 int compute_supported_irs =
1399 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1400 PIPE_SHADER_CAP_SUPPORTED_IRS);
1401 if (compute_supported_irs & (1 << PIPE_SHADER_IR_TGSI)) {
1402 uint64_t grid_size[3], block_size[3];
1403 uint64_t max_local_size, max_threads_per_block;
1404
1405 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1406 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1407 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1408 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1409 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1410 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1411 &max_threads_per_block);
1412 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1413 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1414 &max_local_size);
1415
1416 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1417 consts->MaxComputeSharedMemorySize = max_local_size;
1418
1419 for (i = 0; i < 3; i++) {
1420 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1421 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1422 }
1423
1424 extensions->ARB_compute_shader =
1425 extensions->ARB_shader_image_load_store &&
1426 extensions->ARB_shader_atomic_counters;
1427
1428 if (extensions->ARB_compute_shader) {
1429 uint64_t max_variable_threads_per_block = 0;
1430
1431 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1432 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1433 &max_variable_threads_per_block);
1434
1435 for (i = 0; i < 3; i++) {
1436 /* Clamp the values to avoid having a local work group size
1437 * greater than the maximum number of invocations.
1438 */
1439 consts->MaxComputeVariableGroupSize[i] =
1440 MIN2(consts->MaxComputeWorkGroupSize[i],
1441 max_variable_threads_per_block);
1442 }
1443 consts->MaxComputeVariableGroupInvocations =
1444 max_variable_threads_per_block;
1445
1446 extensions->ARB_compute_variable_group_size =
1447 max_variable_threads_per_block > 0;
1448 }
1449 }
1450 }
1451
1452 if (extensions->EXT_texture_filter_anisotropic &&
1453 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1454 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1455
1456 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1457
1458 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1459 * there's no clean way of telling whether we would support ES 3.1 from
1460 * here, so copy the condition from compute_version_es2 here. A lot of
1461 * these are redunant, but simpler to just have a (near-)exact copy here.
1462 */
1463 extensions->ARB_ES3_1_compatibility =
1464 extensions->ARB_ES3_compatibility &&
1465 extensions->ARB_arrays_of_arrays &&
1466 extensions->ARB_compute_shader &&
1467 extensions->ARB_draw_indirect &&
1468 extensions->ARB_explicit_uniform_location &&
1469 extensions->ARB_framebuffer_no_attachments &&
1470 extensions->ARB_shader_atomic_counters &&
1471 extensions->ARB_shader_image_load_store &&
1472 extensions->ARB_shader_image_size &&
1473 extensions->ARB_shader_storage_buffer_object &&
1474 extensions->ARB_shading_language_packing &&
1475 extensions->ARB_stencil_texturing &&
1476 extensions->ARB_texture_multisample &&
1477 extensions->ARB_gpu_shader5 &&
1478 extensions->EXT_shader_integer_mix;
1479
1480 extensions->OES_texture_cube_map_array =
1481 extensions->ARB_ES3_1_compatibility &&
1482 extensions->OES_geometry_shader &&
1483 extensions->ARB_texture_cube_map_array;
1484
1485 extensions->OES_viewport_array =
1486 extensions->ARB_ES3_1_compatibility &&
1487 extensions->OES_geometry_shader &&
1488 extensions->ARB_viewport_array;
1489
1490 extensions->OES_primitive_bounding_box = extensions->ARB_ES3_1_compatibility;
1491 consts->NoPrimitiveBoundingBoxOutput = true;
1492
1493 extensions->ANDROID_extension_pack_es31a =
1494 extensions->KHR_texture_compression_astc_ldr &&
1495 extensions->KHR_blend_equation_advanced &&
1496 extensions->OES_sample_variables &&
1497 extensions->ARB_shader_image_load_store &&
1498 extensions->ARB_texture_stencil8 &&
1499 extensions->ARB_texture_multisample &&
1500 extensions->OES_copy_image &&
1501 extensions->ARB_draw_buffers_blend &&
1502 extensions->OES_geometry_shader &&
1503 extensions->ARB_gpu_shader5 &&
1504 extensions->OES_primitive_bounding_box &&
1505 extensions->ARB_tessellation_shader &&
1506 extensions->ARB_texture_border_clamp &&
1507 extensions->OES_texture_buffer &&
1508 extensions->OES_texture_cube_map_array &&
1509 extensions->EXT_texture_sRGB_decode;
1510
1511 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1512 * before overall versions are selected. Also it's actually a subset of ES
1513 * 3.2, since it doesn't require ASTC or advanced blending.
1514 */
1515 extensions->ARB_ES3_2_compatibility =
1516 extensions->ARB_ES3_1_compatibility &&
1517 extensions->KHR_robustness &&
1518 extensions->ARB_copy_image &&
1519 extensions->ARB_draw_buffers_blend &&
1520 extensions->ARB_draw_elements_base_vertex &&
1521 extensions->OES_geometry_shader &&
1522 extensions->ARB_gpu_shader5 &&
1523 extensions->ARB_sample_shading &&
1524 extensions->ARB_tessellation_shader &&
1525 extensions->ARB_texture_border_clamp &&
1526 extensions->OES_texture_buffer &&
1527 extensions->ARB_texture_cube_map_array &&
1528 extensions->ARB_texture_stencil8 &&
1529 extensions->ARB_texture_multisample;
1530
1531 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1532 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1533 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1534 float max_dilate;
1535 bool pre_snap_triangles, pre_snap_points_lines;
1536
1537 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1538
1539 pre_snap_triangles =
1540 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1541 pre_snap_points_lines =
1542 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1543
1544 extensions->NV_conservative_raster =
1545 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1546
1547 if (extensions->NV_conservative_raster) {
1548 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1549 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1550 extensions->NV_conservative_raster_pre_snap =
1551 pre_snap_triangles && pre_snap_points_lines;
1552 }
1553 }
1554 }