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