projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
st/mesa: simplify MaxAtomicBufferSize-logic
[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 /* for hw atomic counters leaves these at default for now */
474 if (ssbo_atomic) {
475 c->MaxCombinedShaderStorageBlocks =
476 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
477 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
478 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
479 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
480 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
481 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
482 }
483 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
484
485 c->MaxCombinedShaderOutputResources +=
486 c->MaxCombinedShaderStorageBlocks;
487 c->MaxShaderStorageBlockSize =
488 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
489 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
490 }
491
492 c->MaxCombinedImageUniforms =
493 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
494 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
495 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
496 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
497 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
498 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
499 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
500 c->MaxImageUnits = MAX_IMAGE_UNITS;
501 if (c->MaxCombinedImageUniforms) {
502 extensions->ARB_shader_image_load_store = GL_TRUE;
503 extensions->ARB_shader_image_size = GL_TRUE;
504 }
505
506 /* ARB_framebuffer_no_attachments */
507 c->MaxFramebufferWidth = c->MaxViewportWidth;
508 c->MaxFramebufferHeight = c->MaxViewportHeight;
509 /* NOTE: we cheat here a little by assuming that
510 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
511 * number of layers as we need, although we technically
512 * could have more the generality is not really useful
513 * in practicality.
514 */
515 c->MaxFramebufferLayers =
516 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
517
518 c->MaxWindowRectangles =
519 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
520
521 c->SparseBufferPageSize =
522 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
523
524 c->AllowMappedBuffersDuringExecution =
525 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
526
527 c->UseSTD430AsDefaultPacking =
528 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
529
530 c->MaxSubpixelPrecisionBiasBits =
531 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
532
533 c->ConservativeRasterDilateRange[0] =
534 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
535 c->ConservativeRasterDilateRange[1] =
536 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
537 c->ConservativeRasterDilateGranularity =
538 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
539
540 /* limit the max combined shader output resources to a driver limit */
541 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
542 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
543 c->MaxCombinedShaderOutputResources = temp;
544 }
545
546
547 /**
548 * Given a member \c x of struct gl_extensions, return offset of
549 * \c x in bytes.
550 */
551 #define o(x) offsetof(struct gl_extensions, x)
552
553
554 struct st_extension_cap_mapping {
555 int extension_offset;
556 int cap;
557 };
558
559 struct st_extension_format_mapping {
560 int extension_offset[2];
561 enum pipe_format format[32];
562
563 /* If TRUE, at least one format must be supported for the extensions to be
564 * advertised. If FALSE, all the formats must be supported. */
565 GLboolean need_at_least_one;
566 };
567
568 /**
569 * Enable extensions if certain pipe formats are supported by the driver.
570 * What extensions will be enabled and what formats must be supported is
571 * described by the array of st_extension_format_mapping.
572 *
573 * target and bind_flags are passed to is_format_supported.
574 */
575 static void
576 init_format_extensions(struct pipe_screen *screen,
577 struct gl_extensions *extensions,
578 const struct st_extension_format_mapping *mapping,
579 unsigned num_mappings,
580 enum pipe_texture_target target,
581 unsigned bind_flags)
582 {
583 GLboolean *extension_table = (GLboolean *) extensions;
584 unsigned i;
585 int j;
586 int num_formats = ARRAY_SIZE(mapping->format);
587 int num_ext = ARRAY_SIZE(mapping->extension_offset);
588
589 for (i = 0; i < num_mappings; i++) {
590 int num_supported = 0;
591
592 /* Examine each format in the list. */
593 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
594 if (screen->is_format_supported(screen, mapping[i].format[j],
595 target, 0, 0, bind_flags)) {
596 num_supported++;
597 }
598 }
599
600 if (!num_supported ||
601 (!mapping[i].need_at_least_one && num_supported != j)) {
602 continue;
603 }
604
605 /* Enable all extensions in the list. */
606 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
607 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
608 }
609 }
610
611
612 /**
613 * Given a list of formats and bind flags, return the maximum number
614 * of samples supported by any of those formats.
615 */
616 static unsigned
617 get_max_samples_for_formats(struct pipe_screen *screen,
618 unsigned num_formats,
619 const enum pipe_format *formats,
620 unsigned max_samples,
621 unsigned bind)
622 {
623 unsigned i, f;
624
625 for (i = max_samples; i > 0; --i) {
626 for (f = 0; f < num_formats; f++) {
627 if (screen->is_format_supported(screen, formats[f],
628 PIPE_TEXTURE_2D, i, i, bind)) {
629 return i;
630 }
631 }
632 }
633 return 0;
634 }
635
636 static unsigned
637 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
638 unsigned num_formats,
639 const enum pipe_format *formats,
640 unsigned max_samples,
641 unsigned num_storage_samples,
642 unsigned bind)
643 {
644 unsigned i, f;
645
646 for (i = max_samples; i > 0; --i) {
647 for (f = 0; f < num_formats; f++) {
648 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
649 i, num_storage_samples, bind)) {
650 return i;
651 }
652 }
653 }
654 return 0;
655 }
656
657 /**
658 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
659 * which GL extensions are supported.
660 * Quite a few extensions are always supported because they are standard
661 * features or can be built on top of other gallium features.
662 * Some fine tuning may still be needed.
663 */
664 void st_init_extensions(struct pipe_screen *screen,
665 struct gl_constants *consts,
666 struct gl_extensions *extensions,
667 struct st_config_options *options,
668 gl_api api)
669 {
670 unsigned i;
671 GLboolean *extension_table = (GLboolean *) extensions;
672
673 static const struct st_extension_cap_mapping cap_mapping[] = {
674 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
675 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
676 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
677 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
678 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
679 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
680 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
681 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
682 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
683 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
684 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
685 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
686 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
687 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
688 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
689 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
690 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
691 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
692 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
693 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
694 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
695 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
696 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
697 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
698 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
699 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
700 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
701 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
702 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
703 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
704 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
705 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
706 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
707 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
708 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
709 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
710 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
711 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
712 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
713 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
714 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
715 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
716 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
717 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
718 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
719 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
720 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
721 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
722 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
723 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
724
725 { o(KHR_blend_equation_advanced), PIPE_CAP_TGSI_FS_FBFETCH },
726
727 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
728 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
729 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
730 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
731 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
732 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
733 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
734 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
735 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
736 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
737 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
738 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
739 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
740 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
741
742 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
743 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
744 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
745 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
746 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
747 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
748 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
749 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
750 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
751 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
752 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
753 /* GL_NV_point_sprite is not supported by gallium because we don't
754 * support the GL_POINT_SPRITE_R_MODE_NV option. */
755
756 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
757 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
758 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
759 };
760
761 /* Required: render target and sampler support */
762 static const struct st_extension_format_mapping rendertarget_mapping[] = {
763 { { o(ARB_texture_float) },
764 { PIPE_FORMAT_R32G32B32A32_FLOAT,
765 PIPE_FORMAT_R16G16B16A16_FLOAT } },
766
767 { { o(OES_texture_float) },
768 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
769
770 { { o(OES_texture_half_float) },
771 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
772
773 { { o(ARB_texture_rgb10_a2ui) },
774 { PIPE_FORMAT_R10G10B10A2_UINT,
775 PIPE_FORMAT_B10G10R10A2_UINT },
776 GL_TRUE }, /* at least one format must be supported */
777
778 { { o(EXT_framebuffer_sRGB) },
779 { PIPE_FORMAT_A8B8G8R8_SRGB,
780 PIPE_FORMAT_B8G8R8A8_SRGB,
781 PIPE_FORMAT_R8G8B8A8_SRGB },
782 GL_TRUE }, /* at least one format must be supported */
783
784 { { o(EXT_packed_float) },
785 { PIPE_FORMAT_R11G11B10_FLOAT } },
786
787 { { o(EXT_texture_integer) },
788 { PIPE_FORMAT_R32G32B32A32_UINT,
789 PIPE_FORMAT_R32G32B32A32_SINT } },
790
791 { { o(ARB_texture_rg) },
792 { PIPE_FORMAT_R8_UNORM,
793 PIPE_FORMAT_R8G8_UNORM } },
794 };
795
796 /* Required: depth stencil and sampler support */
797 static const struct st_extension_format_mapping depthstencil_mapping[] = {
798 { { o(ARB_depth_buffer_float) },
799 { PIPE_FORMAT_Z32_FLOAT,
800 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
801 };
802
803 /* Required: sampler support */
804 static const struct st_extension_format_mapping texture_mapping[] = {
805 { { o(ARB_texture_compression_rgtc) },
806 { PIPE_FORMAT_RGTC1_UNORM,
807 PIPE_FORMAT_RGTC1_SNORM,
808 PIPE_FORMAT_RGTC2_UNORM,
809 PIPE_FORMAT_RGTC2_SNORM } },
810
811 { { o(EXT_texture_compression_latc) },
812 { PIPE_FORMAT_LATC1_UNORM,
813 PIPE_FORMAT_LATC1_SNORM,
814 PIPE_FORMAT_LATC2_UNORM,
815 PIPE_FORMAT_LATC2_SNORM } },
816
817 { { o(EXT_texture_compression_s3tc),
818 o(ANGLE_texture_compression_dxt) },
819 { PIPE_FORMAT_DXT1_RGB,
820 PIPE_FORMAT_DXT1_RGBA,
821 PIPE_FORMAT_DXT3_RGBA,
822 PIPE_FORMAT_DXT5_RGBA } },
823
824 { { o(ARB_texture_compression_bptc) },
825 { PIPE_FORMAT_BPTC_RGBA_UNORM,
826 PIPE_FORMAT_BPTC_SRGBA,
827 PIPE_FORMAT_BPTC_RGB_FLOAT,
828 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
829
830 { { o(KHR_texture_compression_astc_ldr),
831 o(KHR_texture_compression_astc_sliced_3d) },
832 { PIPE_FORMAT_ASTC_4x4,
833 PIPE_FORMAT_ASTC_5x4,
834 PIPE_FORMAT_ASTC_5x5,
835 PIPE_FORMAT_ASTC_6x5,
836 PIPE_FORMAT_ASTC_6x6,
837 PIPE_FORMAT_ASTC_8x5,
838 PIPE_FORMAT_ASTC_8x6,
839 PIPE_FORMAT_ASTC_8x8,
840 PIPE_FORMAT_ASTC_10x5,
841 PIPE_FORMAT_ASTC_10x6,
842 PIPE_FORMAT_ASTC_10x8,
843 PIPE_FORMAT_ASTC_10x10,
844 PIPE_FORMAT_ASTC_12x10,
845 PIPE_FORMAT_ASTC_12x12,
846 PIPE_FORMAT_ASTC_4x4_SRGB,
847 PIPE_FORMAT_ASTC_5x4_SRGB,
848 PIPE_FORMAT_ASTC_5x5_SRGB,
849 PIPE_FORMAT_ASTC_6x5_SRGB,
850 PIPE_FORMAT_ASTC_6x6_SRGB,
851 PIPE_FORMAT_ASTC_8x5_SRGB,
852 PIPE_FORMAT_ASTC_8x6_SRGB,
853 PIPE_FORMAT_ASTC_8x8_SRGB,
854 PIPE_FORMAT_ASTC_10x5_SRGB,
855 PIPE_FORMAT_ASTC_10x6_SRGB,
856 PIPE_FORMAT_ASTC_10x8_SRGB,
857 PIPE_FORMAT_ASTC_10x10_SRGB,
858 PIPE_FORMAT_ASTC_12x10_SRGB,
859 PIPE_FORMAT_ASTC_12x12_SRGB } },
860
861 /* ASTC software fallback support. */
862 { { o(KHR_texture_compression_astc_ldr),
863 o(KHR_texture_compression_astc_sliced_3d) },
864 { PIPE_FORMAT_R8G8B8A8_UNORM,
865 PIPE_FORMAT_R8G8B8A8_SRGB } },
866
867 { { o(EXT_texture_shared_exponent) },
868 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
869
870 { { o(EXT_texture_snorm) },
871 { PIPE_FORMAT_R8G8B8A8_SNORM } },
872
873 { { o(EXT_texture_sRGB),
874 o(EXT_texture_sRGB_decode) },
875 { PIPE_FORMAT_A8B8G8R8_SRGB,
876 PIPE_FORMAT_B8G8R8A8_SRGB,
877 PIPE_FORMAT_A8R8G8B8_SRGB,
878 PIPE_FORMAT_R8G8B8A8_SRGB},
879 GL_TRUE }, /* at least one format must be supported */
880
881 { { o(EXT_texture_type_2_10_10_10_REV) },
882 { PIPE_FORMAT_R10G10B10A2_UNORM,
883 PIPE_FORMAT_B10G10R10A2_UNORM },
884 GL_TRUE }, /* at least one format must be supported */
885
886 { { o(ATI_texture_compression_3dc) },
887 { PIPE_FORMAT_LATC2_UNORM } },
888
889 { { o(MESA_ycbcr_texture) },
890 { PIPE_FORMAT_UYVY,
891 PIPE_FORMAT_YUYV },
892 GL_TRUE }, /* at least one format must be supported */
893
894 { { o(OES_compressed_ETC1_RGB8_texture) },
895 { PIPE_FORMAT_ETC1_RGB8,
896 PIPE_FORMAT_R8G8B8A8_UNORM },
897 GL_TRUE }, /* at least one format must be supported */
898
899 { { o(ARB_stencil_texturing),
900 o(ARB_texture_stencil8) },
901 { PIPE_FORMAT_X24S8_UINT,
902 PIPE_FORMAT_S8X24_UINT },
903 GL_TRUE }, /* at least one format must be supported */
904 };
905
906 /* Required: vertex fetch support. */
907 static const struct st_extension_format_mapping vertex_mapping[] = {
908 { { o(EXT_vertex_array_bgra) },
909 { PIPE_FORMAT_B8G8R8A8_UNORM } },
910 { { o(ARB_vertex_type_2_10_10_10_rev) },
911 { PIPE_FORMAT_R10G10B10A2_UNORM,
912 PIPE_FORMAT_B10G10R10A2_UNORM,
913 PIPE_FORMAT_R10G10B10A2_SNORM,
914 PIPE_FORMAT_B10G10R10A2_SNORM,
915 PIPE_FORMAT_R10G10B10A2_USCALED,
916 PIPE_FORMAT_B10G10R10A2_USCALED,
917 PIPE_FORMAT_R10G10B10A2_SSCALED,
918 PIPE_FORMAT_B10G10R10A2_SSCALED } },
919 { { o(ARB_vertex_type_10f_11f_11f_rev) },
920 { PIPE_FORMAT_R11G11B10_FLOAT } },
921 };
922
923 static const struct st_extension_format_mapping tbo_rgb32[] = {
924 { {o(ARB_texture_buffer_object_rgb32) },
925 { PIPE_FORMAT_R32G32B32_FLOAT,
926 PIPE_FORMAT_R32G32B32_UINT,
927 PIPE_FORMAT_R32G32B32_SINT,
928 } },
929 };
930
931 /*
932 * Extensions that are supported by all Gallium drivers:
933 */
934 extensions->ARB_ES2_compatibility = GL_TRUE;
935 extensions->ARB_depth_texture = GL_TRUE;
936 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
937 extensions->ARB_explicit_attrib_location = GL_TRUE;
938 extensions->ARB_explicit_uniform_location = GL_TRUE;
939 extensions->ARB_fragment_coord_conventions = GL_TRUE;
940 extensions->ARB_fragment_program = GL_TRUE;
941 extensions->ARB_fragment_program_shadow = GL_TRUE;
942 extensions->ARB_fragment_shader = GL_TRUE;
943 extensions->ARB_half_float_vertex = GL_TRUE;
944 extensions->ARB_internalformat_query = GL_TRUE;
945 extensions->ARB_internalformat_query2 = GL_TRUE;
946 extensions->ARB_map_buffer_range = GL_TRUE;
947 extensions->ARB_shadow = GL_TRUE;
948 extensions->ARB_sync = GL_TRUE;
949 extensions->ARB_texture_border_clamp = GL_TRUE;
950 extensions->ARB_texture_cube_map = GL_TRUE;
951 extensions->ARB_texture_env_combine = GL_TRUE;
952 extensions->ARB_texture_env_crossbar = GL_TRUE;
953 extensions->ARB_texture_env_dot3 = GL_TRUE;
954 extensions->ARB_vertex_program = GL_TRUE;
955 extensions->ARB_vertex_shader = GL_TRUE;
956
957 extensions->EXT_blend_color = GL_TRUE;
958 extensions->EXT_blend_func_separate = GL_TRUE;
959 extensions->EXT_blend_minmax = GL_TRUE;
960 extensions->EXT_gpu_program_parameters = GL_TRUE;
961 extensions->EXT_pixel_buffer_object = GL_TRUE;
962 extensions->EXT_point_parameters = GL_TRUE;
963 extensions->EXT_provoking_vertex = GL_TRUE;
964 extensions->EXT_stencil_two_side = GL_TRUE;
965 extensions->EXT_texture_env_dot3 = GL_TRUE;
966
967 extensions->ATI_fragment_shader = GL_TRUE;
968 extensions->ATI_texture_env_combine3 = GL_TRUE;
969
970 extensions->MESA_pack_invert = GL_TRUE;
971
972 extensions->NV_fog_distance = GL_TRUE;
973 extensions->NV_texture_env_combine4 = GL_TRUE;
974 extensions->NV_texture_rectangle = GL_TRUE;
975
976 extensions->OES_EGL_image = GL_TRUE;
977 extensions->OES_EGL_image_external = GL_TRUE;
978 extensions->OES_draw_texture = GL_TRUE;
979
980 /* Expose the extensions which directly correspond to gallium caps. */
981 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
982 if (screen->get_param(screen, cap_mapping[i].cap)) {
983 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
984 }
985 }
986
987 /* Expose the extensions which directly correspond to gallium formats. */
988 init_format_extensions(screen, extensions, rendertarget_mapping,
989 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
990 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
991 init_format_extensions(screen, extensions, depthstencil_mapping,
992 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
993 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
994 init_format_extensions(screen, extensions, texture_mapping,
995 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
996 PIPE_BIND_SAMPLER_VIEW);
997 init_format_extensions(screen, extensions, vertex_mapping,
998 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
999 PIPE_BIND_VERTEX_BUFFER);
1000
1001 /* Figure out GLSL support and set GLSLVersion to it. */
1002 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1003 consts->GLSLVersionCompat =
1004 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1005
1006 const unsigned GLSLVersion =
1007 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1008 consts->GLSLVersion;
1009
1010 _mesa_override_glsl_version(consts);
1011
1012 if (options->force_glsl_version > 0 &&
1013 options->force_glsl_version <= GLSLVersion) {
1014 consts->ForceGLSLVersion = options->force_glsl_version;
1015 }
1016
1017 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1018
1019 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1020
1021 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1022
1023 consts->dri_config_options_sha1 = options->config_options_sha1;
1024
1025 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1026
1027 if (GLSLVersion >= 400)
1028 extensions->ARB_gpu_shader5 = GL_TRUE;
1029 if (GLSLVersion >= 410)
1030 extensions->ARB_shader_precision = GL_TRUE;
1031
1032 /* This extension needs full OpenGL 3.2, but we don't know if that's
1033 * supported at this point. Only check the GLSL version. */
1034 if (GLSLVersion >= 150 &&
1035 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1036 extensions->AMD_vertex_shader_layer = GL_TRUE;
1037 }
1038
1039 if (GLSLVersion >= 140) {
1040 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1041 extensions->ARB_enhanced_layouts = GL_TRUE;
1042 }
1043
1044 if (GLSLVersion >= 130) {
1045 consts->NativeIntegers = GL_TRUE;
1046 consts->MaxClipPlanes = 8;
1047
1048 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1049 consts->VertexID_is_zero_based = GL_TRUE;
1050 }
1051
1052 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1053 extensions->ARB_conservative_depth = GL_TRUE;
1054 extensions->ARB_shading_language_packing = GL_TRUE;
1055 extensions->OES_depth_texture_cube_map = GL_TRUE;
1056 extensions->ARB_shading_language_420pack = GL_TRUE;
1057 extensions->ARB_texture_query_levels = GL_TRUE;
1058
1059 extensions->ARB_shader_bit_encoding = GL_TRUE;
1060
1061 extensions->EXT_shader_integer_mix = GL_TRUE;
1062 extensions->ARB_arrays_of_arrays = GL_TRUE;
1063 extensions->MESA_shader_integer_functions = GL_TRUE;
1064 } else {
1065 /* Optional integer support for GLSL 1.2. */
1066 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1067 PIPE_SHADER_CAP_INTEGERS) &&
1068 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1069 PIPE_SHADER_CAP_INTEGERS)) {
1070 consts->NativeIntegers = GL_TRUE;
1071
1072 extensions->EXT_shader_integer_mix = GL_TRUE;
1073 }
1074
1075 /* Integer textures make no sense before GLSL 1.30 */
1076 extensions->EXT_texture_integer = GL_FALSE;
1077 }
1078
1079 consts->GLSLZeroInit = options->glsl_zero_init;
1080
1081 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1082
1083 /* Below are the cases which cannot be moved into tables easily. */
1084
1085 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1086 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1087 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1088 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1089 extensions->ARB_tessellation_shader = GL_TRUE;
1090 }
1091
1092 /* What this is really checking for is the ability to support multiple
1093 * invocations of a geometry shader. There is no separate cap for that, so
1094 * we check the GLSLVersion.
1095 */
1096 if (GLSLVersion >= 400 &&
1097 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1098 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1099 extensions->OES_geometry_shader = GL_TRUE;
1100 }
1101
1102 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1103 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1104 */
1105 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1106 extensions->ARB_gpu_shader5;
1107
1108 /* Maximum sample count. */
1109 {
1110 static const enum pipe_format color_formats[] = {
1111 PIPE_FORMAT_R8G8B8A8_UNORM,
1112 PIPE_FORMAT_B8G8R8A8_UNORM,
1113 PIPE_FORMAT_A8R8G8B8_UNORM,
1114 PIPE_FORMAT_A8B8G8R8_UNORM,
1115 };
1116 static const enum pipe_format depth_formats[] = {
1117 PIPE_FORMAT_Z16_UNORM,
1118 PIPE_FORMAT_Z24X8_UNORM,
1119 PIPE_FORMAT_X8Z24_UNORM,
1120 PIPE_FORMAT_Z32_UNORM,
1121 PIPE_FORMAT_Z32_FLOAT
1122 };
1123 static const enum pipe_format int_formats[] = {
1124 PIPE_FORMAT_R8G8B8A8_SINT
1125 };
1126 static const enum pipe_format void_formats[] = {
1127 PIPE_FORMAT_NONE
1128 };
1129
1130 consts->MaxSamples =
1131 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1132 color_formats, 16,
1133 PIPE_BIND_RENDER_TARGET);
1134
1135 consts->MaxImageSamples =
1136 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1137 color_formats, 16,
1138 PIPE_BIND_SHADER_IMAGE);
1139
1140 consts->MaxColorTextureSamples =
1141 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1142 color_formats, consts->MaxSamples,
1143 PIPE_BIND_SAMPLER_VIEW);
1144
1145 consts->MaxDepthTextureSamples =
1146 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1147 depth_formats, consts->MaxSamples,
1148 PIPE_BIND_SAMPLER_VIEW);
1149
1150 consts->MaxIntegerSamples =
1151 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1152 int_formats, consts->MaxSamples,
1153 PIPE_BIND_SAMPLER_VIEW);
1154
1155 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1156 consts->MaxFramebufferSamples =
1157 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1158 void_formats, 32,
1159 PIPE_BIND_RENDER_TARGET);
1160
1161 if (extensions->AMD_framebuffer_multisample_advanced) {
1162 /* AMD_framebuffer_multisample_advanced */
1163 /* This can be greater than storage samples. */
1164 consts->MaxColorFramebufferSamples =
1165 get_max_samples_for_formats_advanced(screen,
1166 ARRAY_SIZE(color_formats),
1167 color_formats, 16,
1168 consts->MaxSamples,
1169 PIPE_BIND_RENDER_TARGET);
1170
1171 /* If the driver supports N color samples, it means it supports
1172 * N samples and N storage samples. N samples >= N storage
1173 * samples.
1174 */
1175 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1176 consts->MaxDepthStencilFramebufferSamples =
1177 consts->MaxDepthTextureSamples;
1178
1179 assert(consts->MaxColorFramebufferSamples >=
1180 consts->MaxDepthStencilFramebufferSamples);
1181 assert(consts->MaxDepthStencilFramebufferSamples >=
1182 consts->MaxColorFramebufferStorageSamples);
1183
1184 consts->NumSupportedMultisampleModes = 0;
1185
1186 unsigned depth_samples_supported = 0;
1187
1188 for (unsigned samples = 2;
1189 samples <= consts->MaxDepthStencilFramebufferSamples;
1190 samples++) {
1191 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1192 PIPE_TEXTURE_2D, samples, samples,
1193 PIPE_BIND_DEPTH_STENCIL))
1194 depth_samples_supported |= 1 << samples;
1195 }
1196
1197 for (unsigned samples = 2;
1198 samples <= consts->MaxColorFramebufferSamples;
1199 samples++) {
1200 for (unsigned depth_samples = 2;
1201 depth_samples <= samples; depth_samples++) {
1202 if (!(depth_samples_supported & (1 << depth_samples)))
1203 continue;
1204
1205 for (unsigned storage_samples = 2;
1206 storage_samples <= depth_samples; storage_samples++) {
1207 if (screen->is_format_supported(screen,
1208 PIPE_FORMAT_R8G8B8A8_UNORM,
1209 PIPE_TEXTURE_2D,
1210 samples,
1211 storage_samples,
1212 PIPE_BIND_RENDER_TARGET)) {
1213 unsigned i = consts->NumSupportedMultisampleModes;
1214
1215 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1216 consts->SupportedMultisampleModes[i].NumColorSamples =
1217 samples;
1218 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1219 storage_samples;
1220 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1221 depth_samples;
1222 consts->NumSupportedMultisampleModes++;
1223 }
1224 }
1225 }
1226 }
1227 }
1228 }
1229
1230 if (consts->MaxSamples >= 2) {
1231 /* Real MSAA support */
1232 extensions->EXT_framebuffer_multisample = GL_TRUE;
1233 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1234 }
1235 else if (consts->MaxSamples > 0 &&
1236 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1237 /* fake MSAA support */
1238 consts->FakeSWMSAA = GL_TRUE;
1239 extensions->EXT_framebuffer_multisample = GL_TRUE;
1240 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1241 extensions->ARB_texture_multisample = GL_TRUE;
1242 }
1243
1244 if (consts->MaxDualSourceDrawBuffers > 0 &&
1245 !options->disable_blend_func_extended)
1246 extensions->ARB_blend_func_extended = GL_TRUE;
1247
1248 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1249 extensions->ARB_timer_query) {
1250 extensions->EXT_timer_query = GL_TRUE;
1251 }
1252
1253 if (extensions->ARB_transform_feedback2 &&
1254 extensions->ARB_draw_instanced) {
1255 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1256 }
1257 if (options->force_glsl_extensions_warn)
1258 consts->ForceGLSLExtensionsWarn = 1;
1259
1260 if (options->disable_glsl_line_continuations)
1261 consts->DisableGLSLLineContinuations = 1;
1262
1263 if (options->allow_glsl_extension_directive_midshader)
1264 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1265
1266 if (options->allow_glsl_builtin_const_expression)
1267 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1268
1269 if (options->allow_glsl_relaxed_es)
1270 consts->AllowGLSLRelaxedES = GL_TRUE;
1271
1272 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1273 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1274
1275 consts->MinMapBufferAlignment =
1276 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1277
1278 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1279 if (api == API_OPENGL_COMPAT &&
1280 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1281 extensions->ARB_texture_buffer_object = GL_FALSE;
1282
1283 if (extensions->ARB_texture_buffer_object) {
1284 consts->MaxTextureBufferSize =
1285 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1286 (1u << 31) - 1);
1287 consts->TextureBufferOffsetAlignment =
1288 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1289
1290 if (consts->TextureBufferOffsetAlignment)
1291 extensions->ARB_texture_buffer_range = GL_TRUE;
1292
1293 init_format_extensions(screen, extensions, tbo_rgb32,
1294 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1295 PIPE_BIND_SAMPLER_VIEW);
1296 }
1297
1298 extensions->OES_texture_buffer =
1299 extensions->ARB_texture_buffer_object &&
1300 extensions->ARB_texture_buffer_range &&
1301 extensions->ARB_texture_buffer_object_rgb32 &&
1302 extensions->ARB_shader_image_load_store;
1303
1304 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1305 * If the number of available texture indirections is very limited, then we
1306 * prefer to disable varying packing rather than run the risk of varying
1307 * packing preventing a shader from running.
1308 */
1309 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1310 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1311 /* We can't disable varying packing if transform feedback is available,
1312 * because transform feedback code assumes a packed varying layout.
1313 */
1314 if (!extensions->EXT_transform_feedback)
1315 consts->DisableVaryingPacking = GL_TRUE;
1316 }
1317
1318 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1319 if (consts->MaxViewports >= 16) {
1320 if (GLSLVersion >= 400) {
1321 consts->ViewportBounds.Min = -32768.0;
1322 consts->ViewportBounds.Max = 32767.0;
1323 } else {
1324 consts->ViewportBounds.Min = -16384.0;
1325 consts->ViewportBounds.Max = 16383.0;
1326 }
1327 extensions->ARB_viewport_array = GL_TRUE;
1328 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1329 if (extensions->AMD_vertex_shader_layer)
1330 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1331 }
1332
1333 if (extensions->AMD_vertex_shader_layer &&
1334 extensions->AMD_vertex_shader_viewport_index &&
1335 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1336 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1337
1338 /* ARB_framebuffer_no_attachments */
1339 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1340 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1341 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1342 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1343 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1344
1345 /* GL_ARB_ES3_compatibility.
1346 * Check requirements for GLSL ES 3.00.
1347 */
1348 if (GLSLVersion >= 130 &&
1349 extensions->ARB_uniform_buffer_object &&
1350 extensions->ARB_shader_bit_encoding &&
1351 extensions->NV_primitive_restart &&
1352 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1353 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1354 /* Requirements for ETC2 emulation. */
1355 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1356 PIPE_TEXTURE_2D, 0, 0,
1357 PIPE_BIND_SAMPLER_VIEW) &&
1358 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1359 PIPE_TEXTURE_2D, 0, 0,
1360 PIPE_BIND_SAMPLER_VIEW) &&
1361 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1362 PIPE_TEXTURE_2D, 0, 0,
1363 PIPE_BIND_SAMPLER_VIEW) &&
1364 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1365 PIPE_TEXTURE_2D, 0, 0,
1366 PIPE_BIND_SAMPLER_VIEW) &&
1367 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1368 PIPE_TEXTURE_2D, 0, 0,
1369 PIPE_BIND_SAMPLER_VIEW) &&
1370 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1371 PIPE_TEXTURE_2D, 0, 0,
1372 PIPE_BIND_SAMPLER_VIEW)) {
1373 extensions->ARB_ES3_compatibility = GL_TRUE;
1374 }
1375
1376 #ifdef HAVE_ST_VDPAU
1377 if (screen->get_video_param &&
1378 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1379 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1380 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1381 extensions->NV_vdpau_interop = GL_TRUE;
1382 }
1383 #endif
1384
1385 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1386 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1387 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1388 }
1389
1390 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1391 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1392 extensions->GREMEDY_string_marker = GL_TRUE;
1393
1394 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1395 int compute_supported_irs =
1396 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1397 PIPE_SHADER_CAP_SUPPORTED_IRS);
1398 if (compute_supported_irs & (1 << PIPE_SHADER_IR_TGSI)) {
1399 uint64_t grid_size[3], block_size[3];
1400 uint64_t max_local_size, max_threads_per_block;
1401
1402 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1403 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1404 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1405 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1406 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1407 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1408 &max_threads_per_block);
1409 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1410 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1411 &max_local_size);
1412
1413 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1414 consts->MaxComputeSharedMemorySize = max_local_size;
1415
1416 for (i = 0; i < 3; i++) {
1417 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1418 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1419 }
1420
1421 extensions->ARB_compute_shader =
1422 extensions->ARB_shader_image_load_store &&
1423 extensions->ARB_shader_atomic_counters;
1424
1425 if (extensions->ARB_compute_shader) {
1426 uint64_t max_variable_threads_per_block = 0;
1427
1428 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1429 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1430 &max_variable_threads_per_block);
1431
1432 for (i = 0; i < 3; i++) {
1433 /* Clamp the values to avoid having a local work group size
1434 * greater than the maximum number of invocations.
1435 */
1436 consts->MaxComputeVariableGroupSize[i] =
1437 MIN2(consts->MaxComputeWorkGroupSize[i],
1438 max_variable_threads_per_block);
1439 }
1440 consts->MaxComputeVariableGroupInvocations =
1441 max_variable_threads_per_block;
1442
1443 extensions->ARB_compute_variable_group_size =
1444 max_variable_threads_per_block > 0;
1445 }
1446 }
1447 }
1448
1449 if (extensions->EXT_texture_filter_anisotropic &&
1450 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1451 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1452
1453 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1454
1455 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1456 * there's no clean way of telling whether we would support ES 3.1 from
1457 * here, so copy the condition from compute_version_es2 here. A lot of
1458 * these are redunant, but simpler to just have a (near-)exact copy here.
1459 */
1460 extensions->ARB_ES3_1_compatibility =
1461 extensions->ARB_ES3_compatibility &&
1462 extensions->ARB_arrays_of_arrays &&
1463 extensions->ARB_compute_shader &&
1464 extensions->ARB_draw_indirect &&
1465 extensions->ARB_explicit_uniform_location &&
1466 extensions->ARB_framebuffer_no_attachments &&
1467 extensions->ARB_shader_atomic_counters &&
1468 extensions->ARB_shader_image_load_store &&
1469 extensions->ARB_shader_image_size &&
1470 extensions->ARB_shader_storage_buffer_object &&
1471 extensions->ARB_shading_language_packing &&
1472 extensions->ARB_stencil_texturing &&
1473 extensions->ARB_texture_multisample &&
1474 extensions->ARB_gpu_shader5 &&
1475 extensions->EXT_shader_integer_mix;
1476
1477 extensions->OES_texture_cube_map_array =
1478 extensions->ARB_ES3_1_compatibility &&
1479 extensions->OES_geometry_shader &&
1480 extensions->ARB_texture_cube_map_array;
1481
1482 extensions->OES_viewport_array =
1483 extensions->ARB_ES3_1_compatibility &&
1484 extensions->OES_geometry_shader &&
1485 extensions->ARB_viewport_array;
1486
1487 extensions->OES_primitive_bounding_box = extensions->ARB_ES3_1_compatibility;
1488 consts->NoPrimitiveBoundingBoxOutput = true;
1489
1490 extensions->ANDROID_extension_pack_es31a =
1491 extensions->KHR_texture_compression_astc_ldr &&
1492 extensions->KHR_blend_equation_advanced &&
1493 extensions->OES_sample_variables &&
1494 extensions->ARB_shader_image_load_store &&
1495 extensions->ARB_texture_stencil8 &&
1496 extensions->ARB_texture_multisample &&
1497 extensions->OES_copy_image &&
1498 extensions->ARB_draw_buffers_blend &&
1499 extensions->OES_geometry_shader &&
1500 extensions->ARB_gpu_shader5 &&
1501 extensions->OES_primitive_bounding_box &&
1502 extensions->ARB_tessellation_shader &&
1503 extensions->ARB_texture_border_clamp &&
1504 extensions->OES_texture_buffer &&
1505 extensions->OES_texture_cube_map_array &&
1506 extensions->EXT_texture_sRGB_decode;
1507
1508 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1509 * before overall versions are selected. Also it's actually a subset of ES
1510 * 3.2, since it doesn't require ASTC or advanced blending.
1511 */
1512 extensions->ARB_ES3_2_compatibility =
1513 extensions->ARB_ES3_1_compatibility &&
1514 extensions->KHR_robustness &&
1515 extensions->ARB_copy_image &&
1516 extensions->ARB_draw_buffers_blend &&
1517 extensions->ARB_draw_elements_base_vertex &&
1518 extensions->OES_geometry_shader &&
1519 extensions->ARB_gpu_shader5 &&
1520 extensions->ARB_sample_shading &&
1521 extensions->ARB_tessellation_shader &&
1522 extensions->ARB_texture_border_clamp &&
1523 extensions->OES_texture_buffer &&
1524 extensions->ARB_texture_cube_map_array &&
1525 extensions->ARB_texture_stencil8 &&
1526 extensions->ARB_texture_multisample;
1527
1528 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1529 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1530 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1531 float max_dilate;
1532 bool pre_snap_triangles, pre_snap_points_lines;
1533
1534 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1535
1536 pre_snap_triangles =
1537 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1538 pre_snap_points_lines =
1539 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1540
1541 extensions->NV_conservative_raster =
1542 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1543
1544 if (extensions->NV_conservative_raster) {
1545 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1546 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1547 extensions->NV_conservative_raster_pre_snap =
1548 pre_snap_triangles && pre_snap_points_lines;
1549 }
1550 }
1551 }