projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
gallium: add PIPE_CAP_RASTERIZER_SUBPIXEL_BITS
[mesa.git] / src / mesa / state_tracker / st_extensions.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "compiler/nir/nir.h"
30
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/version.h"
35
36 #include "pipe/p_context.h"
37 #include "pipe/p_defines.h"
38 #include "pipe/p_screen.h"
39 #include "tgsi/tgsi_from_mesa.h"
40 #include "util/u_math.h"
41
42 #include "st_context.h"
43 #include "st_debug.h"
44 #include "st_extensions.h"
45 #include "st_format.h"
46
47
48 /*
49 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
50 * avoid evaluating arguments (which are often function calls) more than once.
51 */
52
53 static unsigned _min(unsigned a, unsigned b)
54 {
55 return (a < b) ? a : b;
56 }
57
58 static float _maxf(float a, float b)
59 {
60 return (a > b) ? a : b;
61 }
62
63 static int _clamp(int a, int min, int max)
64 {
65 if (a < min)
66 return min;
67 else if (a > max)
68 return max;
69 else
70 return a;
71 }
72
73
74 /**
75 * Query driver to get implementation limits.
76 * Note that we have to limit/clamp against Mesa's internal limits too.
77 */
78 void st_init_limits(struct pipe_screen *screen,
79 struct gl_constants *c, struct gl_extensions *extensions,
80 gl_api api)
81 {
82 int supported_irs;
83 unsigned sh;
84 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureLevels
88 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
89 MAX_TEXTURE_LEVELS);
90
91 c->Max3DTextureLevels
92 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
93 MAX_3D_TEXTURE_LEVELS);
94
95 c->MaxCubeTextureLevels
96 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
97 MAX_CUBE_TEXTURE_LEVELS);
98
99 c->MaxTextureRectSize
100 = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
101
102 c->MaxArrayTextureLayers
103 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
104
105 /* Define max viewport size and max renderbuffer size in terms of
106 * max texture size (note: max tex RECT size = max tex 2D size).
107 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
108 */
109 c->MaxViewportWidth =
110 c->MaxViewportHeight =
111 c->MaxRenderbufferSize = c->MaxTextureRectSize;
112
113 c->SubPixelBits =
114 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
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 pc->MaxAtomicCounters = temp;
255 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
256 } else {
257 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
258 /*
259 * without separate atomic counters, reserve half of the available
260 * SSBOs for atomic buffers, and the other half for normal SSBOs.
261 */
262 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
263 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
264 }
265 pc->MaxImageUniforms = screen->get_shader_param(
266 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
267
268 /* Gallium doesn't really care about local vs. env parameters so use the
269 * same limits.
270 */
271 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
272 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
273
274 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
275 pc->LowInt.RangeMin = 31;
276 pc->LowInt.RangeMax = 30;
277 pc->LowInt.Precision = 0;
278 pc->MediumInt = pc->HighInt = pc->LowInt;
279 }
280
281 /* TODO: make these more fine-grained if anyone needs it */
282 options->MaxIfDepth =
283 screen->get_shader_param(screen, sh,
284 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
285 options->EmitNoLoops =
286 !screen->get_shader_param(screen, sh,
287 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
288 options->EmitNoMainReturn =
289 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
290
291 options->EmitNoCont =
292 !screen->get_shader_param(screen, sh,
293 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
294
295 options->EmitNoIndirectInput =
296 !screen->get_shader_param(screen, sh,
297 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
298 options->EmitNoIndirectOutput =
299 !screen->get_shader_param(screen, sh,
300 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
301 options->EmitNoIndirectTemp =
302 !screen->get_shader_param(screen, sh,
303 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
304 options->EmitNoIndirectUniform =
305 !screen->get_shader_param(screen, sh,
306 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
307
308 if (pc->MaxNativeInstructions &&
309 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
310 can_ubo = false;
311 }
312
313 if (options->EmitNoLoops)
314 options->MaxUnrollIterations =
315 MIN2(screen->get_shader_param(screen, sh,
316 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
317 65536);
318 else
319 options->MaxUnrollIterations =
320 screen->get_shader_param(screen, sh,
321 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
322
323 options->LowerCombinedClipCullDistance = true;
324 options->LowerBufferInterfaceBlocks = true;
325 }
326
327 c->MaxUserAssignableUniformLocations =
328 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
329 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
330 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
331 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
332 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
333
334 c->GLSLOptimizeConservatively =
335 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
336 c->LowerTessLevel = true;
337 c->LowerCsDerivedVariables = true;
338 c->PrimitiveRestartForPatches =
339 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
340
341 c->MaxCombinedTextureImageUnits =
342 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
343 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
344 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
345 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
346 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
347 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
348 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
349
350 /* This depends on program constants. */
351 c->MaxTextureCoordUnits
352 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
353 MAX_TEXTURE_COORD_UNITS);
354
355 c->MaxTextureUnits =
356 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
357 c->MaxTextureCoordUnits);
358
359 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
360 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
361
362 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
363 * of inputs. It's always 2 colors + N generic inputs. */
364 c->MaxVarying = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
365 PIPE_SHADER_CAP_MAX_INPUTS);
366 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
367 c->MaxGeometryOutputVertices =
368 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
369 c->MaxGeometryTotalOutputComponents =
370 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
371 c->MaxGeometryShaderInvocations =
372 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
373 c->MaxTessPatchComponents =
374 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
375 MAX_VARYING) * 4;
376
377 c->MinProgramTexelOffset =
378 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
379 c->MaxProgramTexelOffset =
380 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
381
382 c->MaxProgramTextureGatherComponents =
383 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
384 c->MinProgramTextureGatherOffset =
385 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
386 c->MaxProgramTextureGatherOffset =
387 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
388
389 c->MaxTransformFeedbackBuffers =
390 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
391 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
392 MAX_FEEDBACK_BUFFERS);
393 c->MaxTransformFeedbackSeparateComponents =
394 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
395 c->MaxTransformFeedbackInterleavedComponents =
396 screen->get_param(screen,
397 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
398 c->MaxVertexStreams =
399 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
400
401 /* The vertex stream must fit into pipe_stream_output_info::stream */
402 assert(c->MaxVertexStreams <= 4);
403
404 c->MaxVertexAttribStride
405 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
406
407 c->StripTextureBorder = GL_TRUE;
408
409 c->GLSLSkipStrictMaxUniformLimitCheck =
410 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
411
412 c->UniformBufferOffsetAlignment =
413 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
414
415 if (can_ubo) {
416 extensions->ARB_uniform_buffer_object = GL_TRUE;
417 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
418 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
419 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
420 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
421 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
422 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
423 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
424 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
425 }
426
427 c->GLSLFragCoordIsSysVal =
428 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
429 c->GLSLFrontFacingIsSysVal =
430 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
431
432 /* GL_ARB_get_program_binary
433 *
434 * The QT framework has a bug in their shader program cache, which is built
435 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
436 * we don't enable more than 1 binary format for compatibility profiles.
437 */
438 if (api != API_OPENGL_COMPAT &&
439 screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
440 c->NumProgramBinaryFormats = 1;
441
442 c->MaxAtomicBufferBindings =
443 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
444 c->MaxAtomicBufferSize =
445 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
446
447 c->MaxCombinedAtomicBuffers =
448 MIN2(screen->get_param(screen,
449 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
450 MAX_COMBINED_ATOMIC_BUFFERS);
451 if (!c->MaxCombinedAtomicBuffers) {
452 c->MaxCombinedAtomicBuffers =
453 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
454 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
455 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
456 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
457 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
458 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
459 }
460
461 c->MaxCombinedAtomicCounters =
462 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
463 if (!c->MaxCombinedAtomicCounters)
464 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
465
466 if (c->MaxCombinedAtomicBuffers > 0) {
467 extensions->ARB_shader_atomic_counters = GL_TRUE;
468 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
469 }
470
471 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
472 c->ShaderStorageBufferOffsetAlignment =
473 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
474 if (c->ShaderStorageBufferOffsetAlignment) {
475 c->MaxCombinedShaderStorageBlocks =
476 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
477 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
478 if (!c->MaxCombinedShaderStorageBlocks) {
479 c->MaxCombinedShaderStorageBlocks =
480 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
481 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
482 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
483 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
484 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
485 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
486 }
487 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
488
489 c->MaxCombinedShaderOutputResources +=
490 c->MaxCombinedShaderStorageBlocks;
491 c->MaxShaderStorageBlockSize =
492 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
493 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
494 }
495
496 c->MaxCombinedImageUniforms =
497 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
498 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
499 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
500 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
501 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
502 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
503 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
504 c->MaxImageUnits = MAX_IMAGE_UNITS;
505 if (c->MaxCombinedImageUniforms) {
506 extensions->ARB_shader_image_load_store = GL_TRUE;
507 extensions->ARB_shader_image_size = GL_TRUE;
508 }
509
510 /* ARB_framebuffer_no_attachments */
511 c->MaxFramebufferWidth = c->MaxViewportWidth;
512 c->MaxFramebufferHeight = c->MaxViewportHeight;
513 /* NOTE: we cheat here a little by assuming that
514 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
515 * number of layers as we need, although we technically
516 * could have more the generality is not really useful
517 * in practicality.
518 */
519 c->MaxFramebufferLayers =
520 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
521
522 c->MaxWindowRectangles =
523 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
524
525 c->SparseBufferPageSize =
526 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
527
528 c->AllowMappedBuffersDuringExecution =
529 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
530
531 c->UseSTD430AsDefaultPacking =
532 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
533
534 c->MaxSubpixelPrecisionBiasBits =
535 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
536
537 c->ConservativeRasterDilateRange[0] =
538 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
539 c->ConservativeRasterDilateRange[1] =
540 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
541 c->ConservativeRasterDilateGranularity =
542 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
543
544 /* limit the max combined shader output resources to a driver limit */
545 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
546 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
547 c->MaxCombinedShaderOutputResources = temp;
548 }
549
550
551 /**
552 * Given a member \c x of struct gl_extensions, return offset of
553 * \c x in bytes.
554 */
555 #define o(x) offsetof(struct gl_extensions, x)
556
557
558 struct st_extension_cap_mapping {
559 int extension_offset;
560 int cap;
561 };
562
563 struct st_extension_format_mapping {
564 int extension_offset[2];
565 enum pipe_format format[32];
566
567 /* If TRUE, at least one format must be supported for the extensions to be
568 * advertised. If FALSE, all the formats must be supported. */
569 GLboolean need_at_least_one;
570 };
571
572 /**
573 * Enable extensions if certain pipe formats are supported by the driver.
574 * What extensions will be enabled and what formats must be supported is
575 * described by the array of st_extension_format_mapping.
576 *
577 * target and bind_flags are passed to is_format_supported.
578 */
579 static void
580 init_format_extensions(struct pipe_screen *screen,
581 struct gl_extensions *extensions,
582 const struct st_extension_format_mapping *mapping,
583 unsigned num_mappings,
584 enum pipe_texture_target target,
585 unsigned bind_flags)
586 {
587 GLboolean *extension_table = (GLboolean *) extensions;
588 unsigned i;
589 int j;
590 int num_formats = ARRAY_SIZE(mapping->format);
591 int num_ext = ARRAY_SIZE(mapping->extension_offset);
592
593 for (i = 0; i < num_mappings; i++) {
594 int num_supported = 0;
595
596 /* Examine each format in the list. */
597 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
598 if (screen->is_format_supported(screen, mapping[i].format[j],
599 target, 0, 0, bind_flags)) {
600 num_supported++;
601 }
602 }
603
604 if (!num_supported ||
605 (!mapping[i].need_at_least_one && num_supported != j)) {
606 continue;
607 }
608
609 /* Enable all extensions in the list. */
610 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
611 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
612 }
613 }
614
615
616 /**
617 * Given a list of formats and bind flags, return the maximum number
618 * of samples supported by any of those formats.
619 */
620 static unsigned
621 get_max_samples_for_formats(struct pipe_screen *screen,
622 unsigned num_formats,
623 const enum pipe_format *formats,
624 unsigned max_samples,
625 unsigned bind)
626 {
627 unsigned i, f;
628
629 for (i = max_samples; i > 0; --i) {
630 for (f = 0; f < num_formats; f++) {
631 if (screen->is_format_supported(screen, formats[f],
632 PIPE_TEXTURE_2D, i, i, bind)) {
633 return i;
634 }
635 }
636 }
637 return 0;
638 }
639
640 static unsigned
641 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
642 unsigned num_formats,
643 const enum pipe_format *formats,
644 unsigned max_samples,
645 unsigned num_storage_samples,
646 unsigned bind)
647 {
648 unsigned i, f;
649
650 for (i = max_samples; i > 0; --i) {
651 for (f = 0; f < num_formats; f++) {
652 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
653 i, num_storage_samples, bind)) {
654 return i;
655 }
656 }
657 }
658 return 0;
659 }
660
661 /**
662 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
663 * which GL extensions are supported.
664 * Quite a few extensions are always supported because they are standard
665 * features or can be built on top of other gallium features.
666 * Some fine tuning may still be needed.
667 */
668 void st_init_extensions(struct pipe_screen *screen,
669 struct gl_constants *consts,
670 struct gl_extensions *extensions,
671 struct st_config_options *options,
672 gl_api api)
673 {
674 unsigned i;
675 GLboolean *extension_table = (GLboolean *) extensions;
676
677 static const struct st_extension_cap_mapping cap_mapping[] = {
678 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
679 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
680 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
681 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
682 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
683 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
684 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
685 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
686 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
687 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
688 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
689 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
690 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
691 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
692 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
693 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
694 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
695 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
696 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
697 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
698 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
699 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
700 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
701 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
702 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
703 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
704 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
705 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
706 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
707 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
708 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
709 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
710 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
711 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
712 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
713 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
714 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
715 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
716 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
717 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
718 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
719 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
720 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
721 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
722 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
723 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
724 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
725 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
726 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
727 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
728
729 { o(KHR_blend_equation_advanced), PIPE_CAP_TGSI_FS_FBFETCH },
730
731 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
732 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
733 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
734 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
735 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
736 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
737 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
738 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
739 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
740 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
741 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
742 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
743 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
744 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
745
746 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
747 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
748 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
749 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
750 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
751 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
752 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
753 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
754 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
755 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
756 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
757 /* GL_NV_point_sprite is not supported by gallium because we don't
758 * support the GL_POINT_SPRITE_R_MODE_NV option. */
759
760 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
761 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
762 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
763 };
764
765 /* Required: render target and sampler support */
766 static const struct st_extension_format_mapping rendertarget_mapping[] = {
767 { { o(ARB_texture_float) },
768 { PIPE_FORMAT_R32G32B32A32_FLOAT,
769 PIPE_FORMAT_R16G16B16A16_FLOAT } },
770
771 { { o(OES_texture_float) },
772 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
773
774 { { o(OES_texture_half_float) },
775 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
776
777 { { o(ARB_texture_rgb10_a2ui) },
778 { PIPE_FORMAT_R10G10B10A2_UINT,
779 PIPE_FORMAT_B10G10R10A2_UINT },
780 GL_TRUE }, /* at least one format must be supported */
781
782 { { o(EXT_framebuffer_sRGB) },
783 { PIPE_FORMAT_A8B8G8R8_SRGB,
784 PIPE_FORMAT_B8G8R8A8_SRGB,
785 PIPE_FORMAT_R8G8B8A8_SRGB },
786 GL_TRUE }, /* at least one format must be supported */
787
788 { { o(EXT_packed_float) },
789 { PIPE_FORMAT_R11G11B10_FLOAT } },
790
791 { { o(EXT_texture_integer) },
792 { PIPE_FORMAT_R32G32B32A32_UINT,
793 PIPE_FORMAT_R32G32B32A32_SINT } },
794
795 { { o(ARB_texture_rg) },
796 { PIPE_FORMAT_R8_UNORM,
797 PIPE_FORMAT_R8G8_UNORM } },
798 };
799
800 /* Required: depth stencil and sampler support */
801 static const struct st_extension_format_mapping depthstencil_mapping[] = {
802 { { o(ARB_depth_buffer_float) },
803 { PIPE_FORMAT_Z32_FLOAT,
804 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
805 };
806
807 /* Required: sampler support */
808 static const struct st_extension_format_mapping texture_mapping[] = {
809 { { o(ARB_texture_compression_rgtc) },
810 { PIPE_FORMAT_RGTC1_UNORM,
811 PIPE_FORMAT_RGTC1_SNORM,
812 PIPE_FORMAT_RGTC2_UNORM,
813 PIPE_FORMAT_RGTC2_SNORM } },
814
815 { { o(EXT_texture_compression_latc) },
816 { PIPE_FORMAT_LATC1_UNORM,
817 PIPE_FORMAT_LATC1_SNORM,
818 PIPE_FORMAT_LATC2_UNORM,
819 PIPE_FORMAT_LATC2_SNORM } },
820
821 { { o(EXT_texture_compression_s3tc),
822 o(ANGLE_texture_compression_dxt) },
823 { PIPE_FORMAT_DXT1_RGB,
824 PIPE_FORMAT_DXT1_RGBA,
825 PIPE_FORMAT_DXT3_RGBA,
826 PIPE_FORMAT_DXT5_RGBA } },
827
828 { { o(ARB_texture_compression_bptc) },
829 { PIPE_FORMAT_BPTC_RGBA_UNORM,
830 PIPE_FORMAT_BPTC_SRGBA,
831 PIPE_FORMAT_BPTC_RGB_FLOAT,
832 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
833
834 { { o(KHR_texture_compression_astc_ldr),
835 o(KHR_texture_compression_astc_sliced_3d) },
836 { PIPE_FORMAT_ASTC_4x4,
837 PIPE_FORMAT_ASTC_5x4,
838 PIPE_FORMAT_ASTC_5x5,
839 PIPE_FORMAT_ASTC_6x5,
840 PIPE_FORMAT_ASTC_6x6,
841 PIPE_FORMAT_ASTC_8x5,
842 PIPE_FORMAT_ASTC_8x6,
843 PIPE_FORMAT_ASTC_8x8,
844 PIPE_FORMAT_ASTC_10x5,
845 PIPE_FORMAT_ASTC_10x6,
846 PIPE_FORMAT_ASTC_10x8,
847 PIPE_FORMAT_ASTC_10x10,
848 PIPE_FORMAT_ASTC_12x10,
849 PIPE_FORMAT_ASTC_12x12,
850 PIPE_FORMAT_ASTC_4x4_SRGB,
851 PIPE_FORMAT_ASTC_5x4_SRGB,
852 PIPE_FORMAT_ASTC_5x5_SRGB,
853 PIPE_FORMAT_ASTC_6x5_SRGB,
854 PIPE_FORMAT_ASTC_6x6_SRGB,
855 PIPE_FORMAT_ASTC_8x5_SRGB,
856 PIPE_FORMAT_ASTC_8x6_SRGB,
857 PIPE_FORMAT_ASTC_8x8_SRGB,
858 PIPE_FORMAT_ASTC_10x5_SRGB,
859 PIPE_FORMAT_ASTC_10x6_SRGB,
860 PIPE_FORMAT_ASTC_10x8_SRGB,
861 PIPE_FORMAT_ASTC_10x10_SRGB,
862 PIPE_FORMAT_ASTC_12x10_SRGB,
863 PIPE_FORMAT_ASTC_12x12_SRGB } },
864
865 /* ASTC software fallback support. */
866 { { o(KHR_texture_compression_astc_ldr),
867 o(KHR_texture_compression_astc_sliced_3d) },
868 { PIPE_FORMAT_R8G8B8A8_UNORM,
869 PIPE_FORMAT_R8G8B8A8_SRGB } },
870
871 { { o(EXT_texture_shared_exponent) },
872 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
873
874 { { o(EXT_texture_snorm) },
875 { PIPE_FORMAT_R8G8B8A8_SNORM } },
876
877 { { o(EXT_texture_sRGB),
878 o(EXT_texture_sRGB_decode) },
879 { PIPE_FORMAT_A8B8G8R8_SRGB,
880 PIPE_FORMAT_B8G8R8A8_SRGB,
881 PIPE_FORMAT_A8R8G8B8_SRGB,
882 PIPE_FORMAT_R8G8B8A8_SRGB},
883 GL_TRUE }, /* at least one format must be supported */
884
885 { { o(EXT_texture_type_2_10_10_10_REV) },
886 { PIPE_FORMAT_R10G10B10A2_UNORM,
887 PIPE_FORMAT_B10G10R10A2_UNORM },
888 GL_TRUE }, /* at least one format must be supported */
889
890 { { o(ATI_texture_compression_3dc) },
891 { PIPE_FORMAT_LATC2_UNORM } },
892
893 { { o(MESA_ycbcr_texture) },
894 { PIPE_FORMAT_UYVY,
895 PIPE_FORMAT_YUYV },
896 GL_TRUE }, /* at least one format must be supported */
897
898 { { o(OES_compressed_ETC1_RGB8_texture) },
899 { PIPE_FORMAT_ETC1_RGB8,
900 PIPE_FORMAT_R8G8B8A8_UNORM },
901 GL_TRUE }, /* at least one format must be supported */
902
903 { { o(ARB_stencil_texturing),
904 o(ARB_texture_stencil8) },
905 { PIPE_FORMAT_X24S8_UINT,
906 PIPE_FORMAT_S8X24_UINT },
907 GL_TRUE }, /* at least one format must be supported */
908 };
909
910 /* Required: vertex fetch support. */
911 static const struct st_extension_format_mapping vertex_mapping[] = {
912 { { o(EXT_vertex_array_bgra) },
913 { PIPE_FORMAT_B8G8R8A8_UNORM } },
914 { { o(ARB_vertex_type_2_10_10_10_rev) },
915 { PIPE_FORMAT_R10G10B10A2_UNORM,
916 PIPE_FORMAT_B10G10R10A2_UNORM,
917 PIPE_FORMAT_R10G10B10A2_SNORM,
918 PIPE_FORMAT_B10G10R10A2_SNORM,
919 PIPE_FORMAT_R10G10B10A2_USCALED,
920 PIPE_FORMAT_B10G10R10A2_USCALED,
921 PIPE_FORMAT_R10G10B10A2_SSCALED,
922 PIPE_FORMAT_B10G10R10A2_SSCALED } },
923 { { o(ARB_vertex_type_10f_11f_11f_rev) },
924 { PIPE_FORMAT_R11G11B10_FLOAT } },
925 };
926
927 static const struct st_extension_format_mapping tbo_rgb32[] = {
928 { {o(ARB_texture_buffer_object_rgb32) },
929 { PIPE_FORMAT_R32G32B32_FLOAT,
930 PIPE_FORMAT_R32G32B32_UINT,
931 PIPE_FORMAT_R32G32B32_SINT,
932 } },
933 };
934
935 /*
936 * Extensions that are supported by all Gallium drivers:
937 */
938 extensions->ARB_ES2_compatibility = GL_TRUE;
939 extensions->ARB_depth_texture = GL_TRUE;
940 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
941 extensions->ARB_explicit_attrib_location = GL_TRUE;
942 extensions->ARB_explicit_uniform_location = GL_TRUE;
943 extensions->ARB_fragment_coord_conventions = GL_TRUE;
944 extensions->ARB_fragment_program = GL_TRUE;
945 extensions->ARB_fragment_program_shadow = GL_TRUE;
946 extensions->ARB_fragment_shader = GL_TRUE;
947 extensions->ARB_half_float_vertex = GL_TRUE;
948 extensions->ARB_internalformat_query = GL_TRUE;
949 extensions->ARB_internalformat_query2 = GL_TRUE;
950 extensions->ARB_map_buffer_range = GL_TRUE;
951 extensions->ARB_shadow = GL_TRUE;
952 extensions->ARB_sync = GL_TRUE;
953 extensions->ARB_texture_border_clamp = GL_TRUE;
954 extensions->ARB_texture_cube_map = GL_TRUE;
955 extensions->ARB_texture_env_combine = GL_TRUE;
956 extensions->ARB_texture_env_crossbar = GL_TRUE;
957 extensions->ARB_texture_env_dot3 = GL_TRUE;
958 extensions->ARB_vertex_program = GL_TRUE;
959 extensions->ARB_vertex_shader = GL_TRUE;
960
961 extensions->EXT_blend_color = GL_TRUE;
962 extensions->EXT_blend_func_separate = GL_TRUE;
963 extensions->EXT_blend_minmax = GL_TRUE;
964 extensions->EXT_gpu_program_parameters = GL_TRUE;
965 extensions->EXT_pixel_buffer_object = GL_TRUE;
966 extensions->EXT_point_parameters = GL_TRUE;
967 extensions->EXT_provoking_vertex = GL_TRUE;
968 extensions->EXT_stencil_two_side = GL_TRUE;
969 extensions->EXT_texture_env_dot3 = GL_TRUE;
970
971 extensions->ATI_fragment_shader = GL_TRUE;
972 extensions->ATI_texture_env_combine3 = GL_TRUE;
973
974 extensions->MESA_pack_invert = GL_TRUE;
975
976 extensions->NV_fog_distance = GL_TRUE;
977 extensions->NV_texture_env_combine4 = GL_TRUE;
978 extensions->NV_texture_rectangle = GL_TRUE;
979
980 extensions->OES_EGL_image = GL_TRUE;
981 extensions->OES_EGL_image_external = GL_TRUE;
982 extensions->OES_draw_texture = GL_TRUE;
983
984 /* Expose the extensions which directly correspond to gallium caps. */
985 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
986 if (screen->get_param(screen, cap_mapping[i].cap)) {
987 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
988 }
989 }
990
991 /* Expose the extensions which directly correspond to gallium formats. */
992 init_format_extensions(screen, extensions, rendertarget_mapping,
993 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
994 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
995 init_format_extensions(screen, extensions, depthstencil_mapping,
996 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
997 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
998 init_format_extensions(screen, extensions, texture_mapping,
999 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1000 PIPE_BIND_SAMPLER_VIEW);
1001 init_format_extensions(screen, extensions, vertex_mapping,
1002 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1003 PIPE_BIND_VERTEX_BUFFER);
1004
1005 /* Figure out GLSL support and set GLSLVersion to it. */
1006 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1007 consts->GLSLVersionCompat =
1008 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1009
1010 const unsigned GLSLVersion =
1011 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1012 consts->GLSLVersion;
1013
1014 _mesa_override_glsl_version(consts);
1015
1016 if (options->force_glsl_version > 0 &&
1017 options->force_glsl_version <= GLSLVersion) {
1018 consts->ForceGLSLVersion = options->force_glsl_version;
1019 }
1020
1021 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1022
1023 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1024
1025 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1026
1027 consts->dri_config_options_sha1 = options->config_options_sha1;
1028
1029 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1030
1031 if (GLSLVersion >= 400)
1032 extensions->ARB_gpu_shader5 = GL_TRUE;
1033 if (GLSLVersion >= 410)
1034 extensions->ARB_shader_precision = GL_TRUE;
1035
1036 /* This extension needs full OpenGL 3.2, but we don't know if that's
1037 * supported at this point. Only check the GLSL version. */
1038 if (GLSLVersion >= 150 &&
1039 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1040 extensions->AMD_vertex_shader_layer = GL_TRUE;
1041 }
1042
1043 if (GLSLVersion >= 140) {
1044 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1045 extensions->ARB_enhanced_layouts = GL_TRUE;
1046 }
1047
1048 if (GLSLVersion >= 130) {
1049 consts->NativeIntegers = GL_TRUE;
1050 consts->MaxClipPlanes = 8;
1051
1052 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1053 consts->VertexID_is_zero_based = GL_TRUE;
1054 }
1055
1056 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1057 extensions->ARB_conservative_depth = GL_TRUE;
1058 extensions->ARB_shading_language_packing = GL_TRUE;
1059 extensions->OES_depth_texture_cube_map = GL_TRUE;
1060 extensions->ARB_shading_language_420pack = GL_TRUE;
1061 extensions->ARB_texture_query_levels = GL_TRUE;
1062
1063 extensions->ARB_shader_bit_encoding = GL_TRUE;
1064
1065 extensions->EXT_shader_integer_mix = GL_TRUE;
1066 extensions->ARB_arrays_of_arrays = GL_TRUE;
1067 extensions->MESA_shader_integer_functions = GL_TRUE;
1068 } else {
1069 /* Optional integer support for GLSL 1.2. */
1070 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1071 PIPE_SHADER_CAP_INTEGERS) &&
1072 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1073 PIPE_SHADER_CAP_INTEGERS)) {
1074 consts->NativeIntegers = GL_TRUE;
1075
1076 extensions->EXT_shader_integer_mix = GL_TRUE;
1077 }
1078
1079 /* Integer textures make no sense before GLSL 1.30 */
1080 extensions->EXT_texture_integer = GL_FALSE;
1081 }
1082
1083 consts->GLSLZeroInit = options->glsl_zero_init;
1084
1085 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1086
1087 /* Below are the cases which cannot be moved into tables easily. */
1088
1089 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1090 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1091 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1092 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1093 extensions->ARB_tessellation_shader = GL_TRUE;
1094 }
1095
1096 /* What this is really checking for is the ability to support multiple
1097 * invocations of a geometry shader. There is no separate cap for that, so
1098 * we check the GLSLVersion.
1099 */
1100 if (GLSLVersion >= 400 &&
1101 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1102 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1103 extensions->OES_geometry_shader = GL_TRUE;
1104 }
1105
1106 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1107 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1108 */
1109 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1110 extensions->ARB_gpu_shader5;
1111
1112 /* Maximum sample count. */
1113 {
1114 static const enum pipe_format color_formats[] = {
1115 PIPE_FORMAT_R8G8B8A8_UNORM,
1116 PIPE_FORMAT_B8G8R8A8_UNORM,
1117 PIPE_FORMAT_A8R8G8B8_UNORM,
1118 PIPE_FORMAT_A8B8G8R8_UNORM,
1119 };
1120 static const enum pipe_format depth_formats[] = {
1121 PIPE_FORMAT_Z16_UNORM,
1122 PIPE_FORMAT_Z24X8_UNORM,
1123 PIPE_FORMAT_X8Z24_UNORM,
1124 PIPE_FORMAT_Z32_UNORM,
1125 PIPE_FORMAT_Z32_FLOAT
1126 };
1127 static const enum pipe_format int_formats[] = {
1128 PIPE_FORMAT_R8G8B8A8_SINT
1129 };
1130 static const enum pipe_format void_formats[] = {
1131 PIPE_FORMAT_NONE
1132 };
1133
1134 consts->MaxSamples =
1135 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1136 color_formats, 16,
1137 PIPE_BIND_RENDER_TARGET);
1138
1139 consts->MaxImageSamples =
1140 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1141 color_formats, 16,
1142 PIPE_BIND_SHADER_IMAGE);
1143
1144 consts->MaxColorTextureSamples =
1145 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1146 color_formats, consts->MaxSamples,
1147 PIPE_BIND_SAMPLER_VIEW);
1148
1149 consts->MaxDepthTextureSamples =
1150 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1151 depth_formats, consts->MaxSamples,
1152 PIPE_BIND_SAMPLER_VIEW);
1153
1154 consts->MaxIntegerSamples =
1155 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1156 int_formats, consts->MaxSamples,
1157 PIPE_BIND_SAMPLER_VIEW);
1158
1159 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1160 consts->MaxFramebufferSamples =
1161 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1162 void_formats, 32,
1163 PIPE_BIND_RENDER_TARGET);
1164
1165 if (extensions->AMD_framebuffer_multisample_advanced) {
1166 /* AMD_framebuffer_multisample_advanced */
1167 /* This can be greater than storage samples. */
1168 consts->MaxColorFramebufferSamples =
1169 get_max_samples_for_formats_advanced(screen,
1170 ARRAY_SIZE(color_formats),
1171 color_formats, 16,
1172 consts->MaxSamples,
1173 PIPE_BIND_RENDER_TARGET);
1174
1175 /* If the driver supports N color samples, it means it supports
1176 * N samples and N storage samples. N samples >= N storage
1177 * samples.
1178 */
1179 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1180 consts->MaxDepthStencilFramebufferSamples =
1181 consts->MaxDepthTextureSamples;
1182
1183 assert(consts->MaxColorFramebufferSamples >=
1184 consts->MaxDepthStencilFramebufferSamples);
1185 assert(consts->MaxDepthStencilFramebufferSamples >=
1186 consts->MaxColorFramebufferStorageSamples);
1187
1188 consts->NumSupportedMultisampleModes = 0;
1189
1190 unsigned depth_samples_supported = 0;
1191
1192 for (unsigned samples = 2;
1193 samples <= consts->MaxDepthStencilFramebufferSamples;
1194 samples++) {
1195 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1196 PIPE_TEXTURE_2D, samples, samples,
1197 PIPE_BIND_DEPTH_STENCIL))
1198 depth_samples_supported |= 1 << samples;
1199 }
1200
1201 for (unsigned samples = 2;
1202 samples <= consts->MaxColorFramebufferSamples;
1203 samples++) {
1204 for (unsigned depth_samples = 2;
1205 depth_samples <= samples; depth_samples++) {
1206 if (!(depth_samples_supported & (1 << depth_samples)))
1207 continue;
1208
1209 for (unsigned storage_samples = 2;
1210 storage_samples <= depth_samples; storage_samples++) {
1211 if (screen->is_format_supported(screen,
1212 PIPE_FORMAT_R8G8B8A8_UNORM,
1213 PIPE_TEXTURE_2D,
1214 samples,
1215 storage_samples,
1216 PIPE_BIND_RENDER_TARGET)) {
1217 unsigned i = consts->NumSupportedMultisampleModes;
1218
1219 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1220 consts->SupportedMultisampleModes[i].NumColorSamples =
1221 samples;
1222 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1223 storage_samples;
1224 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1225 depth_samples;
1226 consts->NumSupportedMultisampleModes++;
1227 }
1228 }
1229 }
1230 }
1231 }
1232 }
1233
1234 if (consts->MaxSamples >= 2) {
1235 /* Real MSAA support */
1236 extensions->EXT_framebuffer_multisample = GL_TRUE;
1237 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1238 }
1239 else if (consts->MaxSamples > 0 &&
1240 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1241 /* fake MSAA support */
1242 consts->FakeSWMSAA = GL_TRUE;
1243 extensions->EXT_framebuffer_multisample = GL_TRUE;
1244 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1245 extensions->ARB_texture_multisample = GL_TRUE;
1246 }
1247
1248 if (consts->MaxDualSourceDrawBuffers > 0 &&
1249 !options->disable_blend_func_extended)
1250 extensions->ARB_blend_func_extended = GL_TRUE;
1251
1252 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1253 extensions->ARB_timer_query) {
1254 extensions->EXT_timer_query = GL_TRUE;
1255 }
1256
1257 if (extensions->ARB_transform_feedback2 &&
1258 extensions->ARB_draw_instanced) {
1259 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1260 }
1261 if (options->force_glsl_extensions_warn)
1262 consts->ForceGLSLExtensionsWarn = 1;
1263
1264 if (options->disable_glsl_line_continuations)
1265 consts->DisableGLSLLineContinuations = 1;
1266
1267 if (options->allow_glsl_extension_directive_midshader)
1268 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1269
1270 if (options->allow_glsl_builtin_const_expression)
1271 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1272
1273 if (options->allow_glsl_relaxed_es)
1274 consts->AllowGLSLRelaxedES = GL_TRUE;
1275
1276 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1277 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1278
1279 consts->MinMapBufferAlignment =
1280 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1281
1282 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1283 if (api == API_OPENGL_COMPAT &&
1284 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1285 extensions->ARB_texture_buffer_object = GL_FALSE;
1286
1287 if (extensions->ARB_texture_buffer_object) {
1288 consts->MaxTextureBufferSize =
1289 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1290 (1u << 31) - 1);
1291 consts->TextureBufferOffsetAlignment =
1292 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1293
1294 if (consts->TextureBufferOffsetAlignment)
1295 extensions->ARB_texture_buffer_range = GL_TRUE;
1296
1297 init_format_extensions(screen, extensions, tbo_rgb32,
1298 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1299 PIPE_BIND_SAMPLER_VIEW);
1300 }
1301
1302 extensions->OES_texture_buffer =
1303 extensions->ARB_texture_buffer_object &&
1304 extensions->ARB_texture_buffer_range &&
1305 extensions->ARB_texture_buffer_object_rgb32 &&
1306 extensions->ARB_shader_image_load_store;
1307
1308 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1309 * If the number of available texture indirections is very limited, then we
1310 * prefer to disable varying packing rather than run the risk of varying
1311 * packing preventing a shader from running.
1312 */
1313 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1314 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1315 /* We can't disable varying packing if transform feedback is available,
1316 * because transform feedback code assumes a packed varying layout.
1317 */
1318 if (!extensions->EXT_transform_feedback)
1319 consts->DisableVaryingPacking = GL_TRUE;
1320 }
1321
1322 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1323 if (consts->MaxViewports >= 16) {
1324 if (GLSLVersion >= 400) {
1325 consts->ViewportBounds.Min = -32768.0;
1326 consts->ViewportBounds.Max = 32767.0;
1327 } else {
1328 consts->ViewportBounds.Min = -16384.0;
1329 consts->ViewportBounds.Max = 16383.0;
1330 }
1331 extensions->ARB_viewport_array = GL_TRUE;
1332 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1333 if (extensions->AMD_vertex_shader_layer)
1334 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1335 }
1336
1337 if (extensions->AMD_vertex_shader_layer &&
1338 extensions->AMD_vertex_shader_viewport_index &&
1339 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1340 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1341
1342 /* ARB_framebuffer_no_attachments */
1343 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1344 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1345 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1346 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1347 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1348
1349 /* GL_ARB_ES3_compatibility.
1350 * Check requirements for GLSL ES 3.00.
1351 */
1352 if (GLSLVersion >= 130 &&
1353 extensions->ARB_uniform_buffer_object &&
1354 extensions->ARB_shader_bit_encoding &&
1355 extensions->NV_primitive_restart &&
1356 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1357 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1358 /* Requirements for ETC2 emulation. */
1359 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1360 PIPE_TEXTURE_2D, 0, 0,
1361 PIPE_BIND_SAMPLER_VIEW) &&
1362 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1363 PIPE_TEXTURE_2D, 0, 0,
1364 PIPE_BIND_SAMPLER_VIEW) &&
1365 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1366 PIPE_TEXTURE_2D, 0, 0,
1367 PIPE_BIND_SAMPLER_VIEW) &&
1368 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1369 PIPE_TEXTURE_2D, 0, 0,
1370 PIPE_BIND_SAMPLER_VIEW) &&
1371 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1372 PIPE_TEXTURE_2D, 0, 0,
1373 PIPE_BIND_SAMPLER_VIEW) &&
1374 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1375 PIPE_TEXTURE_2D, 0, 0,
1376 PIPE_BIND_SAMPLER_VIEW)) {
1377 extensions->ARB_ES3_compatibility = GL_TRUE;
1378 }
1379
1380 #ifdef HAVE_ST_VDPAU
1381 if (screen->get_video_param &&
1382 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1383 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1384 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1385 extensions->NV_vdpau_interop = GL_TRUE;
1386 }
1387 #endif
1388
1389 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1390 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1391 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1392 }
1393
1394 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1395 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1396 extensions->GREMEDY_string_marker = GL_TRUE;
1397
1398 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1399 int compute_supported_irs =
1400 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1401 PIPE_SHADER_CAP_SUPPORTED_IRS);
1402 if (compute_supported_irs & (1 << PIPE_SHADER_IR_TGSI)) {
1403 uint64_t grid_size[3], block_size[3];
1404 uint64_t max_local_size, max_threads_per_block;
1405
1406 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1407 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1408 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1409 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1410 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1411 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1412 &max_threads_per_block);
1413 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1414 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1415 &max_local_size);
1416
1417 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1418 consts->MaxComputeSharedMemorySize = max_local_size;
1419
1420 for (i = 0; i < 3; i++) {
1421 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1422 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1423 }
1424
1425 extensions->ARB_compute_shader =
1426 extensions->ARB_shader_image_load_store &&
1427 extensions->ARB_shader_atomic_counters;
1428
1429 if (extensions->ARB_compute_shader) {
1430 uint64_t max_variable_threads_per_block = 0;
1431
1432 screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
1433 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1434 &max_variable_threads_per_block);
1435
1436 for (i = 0; i < 3; i++) {
1437 /* Clamp the values to avoid having a local work group size
1438 * greater than the maximum number of invocations.
1439 */
1440 consts->MaxComputeVariableGroupSize[i] =
1441 MIN2(consts->MaxComputeWorkGroupSize[i],
1442 max_variable_threads_per_block);
1443 }
1444 consts->MaxComputeVariableGroupInvocations =
1445 max_variable_threads_per_block;
1446
1447 extensions->ARB_compute_variable_group_size =
1448 max_variable_threads_per_block > 0;
1449 }
1450 }
1451 }
1452
1453 if (extensions->EXT_texture_filter_anisotropic &&
1454 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1455 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1456
1457 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1458
1459 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1460 * there's no clean way of telling whether we would support ES 3.1 from
1461 * here, so copy the condition from compute_version_es2 here. A lot of
1462 * these are redunant, but simpler to just have a (near-)exact copy here.
1463 */
1464 extensions->ARB_ES3_1_compatibility =
1465 extensions->ARB_ES3_compatibility &&
1466 extensions->ARB_arrays_of_arrays &&
1467 extensions->ARB_compute_shader &&
1468 extensions->ARB_draw_indirect &&
1469 extensions->ARB_explicit_uniform_location &&
1470 extensions->ARB_framebuffer_no_attachments &&
1471 extensions->ARB_shader_atomic_counters &&
1472 extensions->ARB_shader_image_load_store &&
1473 extensions->ARB_shader_image_size &&
1474 extensions->ARB_shader_storage_buffer_object &&
1475 extensions->ARB_shading_language_packing &&
1476 extensions->ARB_stencil_texturing &&
1477 extensions->ARB_texture_multisample &&
1478 extensions->ARB_gpu_shader5 &&
1479 extensions->EXT_shader_integer_mix;
1480
1481 extensions->OES_texture_cube_map_array =
1482 extensions->ARB_ES3_1_compatibility &&
1483 extensions->OES_geometry_shader &&
1484 extensions->ARB_texture_cube_map_array;
1485
1486 extensions->OES_viewport_array =
1487 extensions->ARB_ES3_1_compatibility &&
1488 extensions->OES_geometry_shader &&
1489 extensions->ARB_viewport_array;
1490
1491 extensions->OES_primitive_bounding_box = extensions->ARB_ES3_1_compatibility;
1492 consts->NoPrimitiveBoundingBoxOutput = true;
1493
1494 extensions->ANDROID_extension_pack_es31a =
1495 extensions->KHR_texture_compression_astc_ldr &&
1496 extensions->KHR_blend_equation_advanced &&
1497 extensions->OES_sample_variables &&
1498 extensions->ARB_shader_image_load_store &&
1499 extensions->ARB_texture_stencil8 &&
1500 extensions->ARB_texture_multisample &&
1501 extensions->OES_copy_image &&
1502 extensions->ARB_draw_buffers_blend &&
1503 extensions->OES_geometry_shader &&
1504 extensions->ARB_gpu_shader5 &&
1505 extensions->OES_primitive_bounding_box &&
1506 extensions->ARB_tessellation_shader &&
1507 extensions->ARB_texture_border_clamp &&
1508 extensions->OES_texture_buffer &&
1509 extensions->OES_texture_cube_map_array &&
1510 extensions->EXT_texture_sRGB_decode;
1511
1512 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1513 * before overall versions are selected. Also it's actually a subset of ES
1514 * 3.2, since it doesn't require ASTC or advanced blending.
1515 */
1516 extensions->ARB_ES3_2_compatibility =
1517 extensions->ARB_ES3_1_compatibility &&
1518 extensions->KHR_robustness &&
1519 extensions->ARB_copy_image &&
1520 extensions->ARB_draw_buffers_blend &&
1521 extensions->ARB_draw_elements_base_vertex &&
1522 extensions->OES_geometry_shader &&
1523 extensions->ARB_gpu_shader5 &&
1524 extensions->ARB_sample_shading &&
1525 extensions->ARB_tessellation_shader &&
1526 extensions->ARB_texture_border_clamp &&
1527 extensions->OES_texture_buffer &&
1528 extensions->ARB_texture_cube_map_array &&
1529 extensions->ARB_texture_stencil8 &&
1530 extensions->ARB_texture_multisample;
1531
1532 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1533 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1534 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1535 float max_dilate;
1536 bool pre_snap_triangles, pre_snap_points_lines;
1537
1538 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1539
1540 pre_snap_triangles =
1541 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1542 pre_snap_points_lines =
1543 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1544
1545 extensions->NV_conservative_raster =
1546 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1547
1548 if (extensions->NV_conservative_raster) {
1549 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1550 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1551 extensions->NV_conservative_raster_pre_snap =
1552 pre_snap_triangles && pre_snap_points_lines;
1553 }
1554 }
1555 }