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
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/spirv_extensions.h"
35 #include "main/version.h"
36 #include "nir/nir_to_tgsi.h"
37
38 #include "pipe/p_context.h"
39 #include "pipe/p_defines.h"
40 #include "pipe/p_screen.h"
41 #include "tgsi/tgsi_from_mesa.h"
42 #include "util/u_math.h"
43 #include "util/u_memory.h"
44
45 #include "st_context.h"
46 #include "st_debug.h"
47 #include "st_extensions.h"
48 #include "st_format.h"
49
50
51 /*
52 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
53 * avoid evaluating arguments (which are often function calls) more than once.
54 */
55
_min(unsigned a,unsigned b)56 static unsigned _min(unsigned a, unsigned b)
57 {
58 return (a < b) ? a : b;
59 }
60
_maxf(float a,float b)61 static float _maxf(float a, float b)
62 {
63 return (a > b) ? a : b;
64 }
65
_clamp(int a,int min,int max)66 static int _clamp(int a, int min, int max)
67 {
68 if (a < min)
69 return min;
70 else if (a > max)
71 return max;
72 else
73 return a;
74 }
75
mesa_to_gl_stages(unsigned stages)76 static unsigned mesa_to_gl_stages(unsigned stages)
77 {
78 unsigned ret = 0;
79
80 if (stages & BITFIELD_BIT(MESA_SHADER_VERTEX))
81 ret |= GL_VERTEX_SHADER_BIT;
82
83 if (stages & BITFIELD_BIT(MESA_SHADER_TESS_CTRL))
84 ret |= GL_TESS_CONTROL_SHADER_BIT;
85
86 if (stages & BITFIELD_BIT(MESA_SHADER_TESS_EVAL))
87 ret |= GL_TESS_EVALUATION_SHADER_BIT;
88
89 if (stages & BITFIELD_BIT(MESA_SHADER_GEOMETRY))
90 ret |= GL_GEOMETRY_SHADER_BIT;
91
92 if (stages & BITFIELD_BIT(MESA_SHADER_FRAGMENT))
93 ret |= GL_FRAGMENT_SHADER_BIT;
94
95 if (stages & BITFIELD_BIT(MESA_SHADER_COMPUTE))
96 ret |= GL_COMPUTE_SHADER_BIT;
97
98 return ret;
99 }
100
101 /**
102 * Query driver to get implementation limits.
103 * Note that we have to limit/clamp against Mesa's internal limits too.
104 */
st_init_limits(struct pipe_screen * screen,struct gl_constants * c,struct gl_extensions * extensions,gl_api api)105 void st_init_limits(struct pipe_screen *screen,
106 struct gl_constants *c, struct gl_extensions *extensions,
107 gl_api api)
108 {
109 unsigned sh;
110 bool can_ubo = true;
111 int temp;
112
113 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
114 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
115 c->MaxTextureMbytes = MAX2(c->MaxTextureMbytes,
116 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_MB));
117
118 c->Max3DTextureLevels
119 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
120 MAX_TEXTURE_LEVELS);
121 extensions->OES_texture_3D = c->Max3DTextureLevels != 0;
122
123 c->MaxCubeTextureLevels
124 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
125 MAX_TEXTURE_LEVELS);
126
127 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
128
129 c->MaxArrayTextureLayers
130 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
131
132 /* Define max viewport size and max renderbuffer size in terms of
133 * max texture size (note: max tex RECT size = max tex 2D size).
134 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
135 */
136 c->MaxViewportWidth =
137 c->MaxViewportHeight =
138 c->MaxRenderbufferSize = c->MaxTextureRectSize;
139
140 c->SubPixelBits =
141 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
142 c->ViewportSubpixelBits =
143 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
144
145 c->MaxDrawBuffers = c->MaxColorAttachments =
146 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
147 1, MAX_DRAW_BUFFERS);
148
149 c->MaxDualSourceDrawBuffers =
150 _clamp(screen->get_param(screen,
151 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
152 0, MAX_DRAW_BUFFERS);
153
154 c->MaxLineWidth =
155 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
156 c->MaxLineWidthAA =
157 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
158
159 c->MinLineWidth = screen->get_paramf(screen, PIPE_CAPF_MIN_LINE_WIDTH);
160 c->MinLineWidthAA = screen->get_paramf(screen, PIPE_CAPF_MIN_LINE_WIDTH_AA);
161 c->LineWidthGranularity = screen->get_paramf(screen, PIPE_CAPF_LINE_WIDTH_GRANULARITY);
162
163 c->MaxPointSize =
164 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_SIZE));
165 c->MaxPointSizeAA =
166 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_SIZE_AA));
167
168 c->MinPointSize = MAX2(screen->get_paramf(screen, PIPE_CAPF_MIN_POINT_SIZE), 0.01);
169 c->MinPointSizeAA = MAX2(screen->get_paramf(screen, PIPE_CAPF_MIN_POINT_SIZE_AA), 0.01);
170 c->PointSizeGranularity = screen->get_paramf(screen, PIPE_CAPF_POINT_SIZE_GRANULARITY);
171
172 c->MaxTextureMaxAnisotropy =
173 _maxf(2.0f,
174 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
175
176 c->MaxTextureLodBias =
177 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
178
179 c->QuadsFollowProvokingVertexConvention =
180 screen->get_param(screen,
181 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
182
183 c->MaxUniformBlockSize =
184 screen->get_param(screen, PIPE_CAP_MAX_CONSTANT_BUFFER_SIZE_UINT);
185
186 if (c->MaxUniformBlockSize < 16384) {
187 can_ubo = false;
188 }
189
190 /* Round down to a multiple of 4 to make piglit happy. Bytes are not
191 * addressible by UBOs anyway.
192 */
193 c->MaxUniformBlockSize &= ~3;
194
195 c->HasFBFetch = screen->get_param(screen, PIPE_CAP_FBFETCH);
196
197 c->CombinedClipCullDistanceArrays = !screen->get_param(screen, PIPE_CAP_CULL_DISTANCE_NOCOMBINE);
198
199 c->PointSizeFixed = screen->get_param(screen, PIPE_CAP_POINT_SIZE_FIXED) != PIPE_POINT_SIZE_LOWER_ALWAYS;
200
201 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
202 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
203 struct gl_shader_compiler_options *options =
204 &c->ShaderCompilerOptions[stage];
205 struct gl_program_constants *pc = &c->Program[stage];
206
207 if (screen->get_compiler_options)
208 options->NirOptions = screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
209
210 if (!options->NirOptions) {
211 options->NirOptions =
212 nir_to_tgsi_get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
213 }
214
215 if (sh == PIPE_SHADER_COMPUTE) {
216 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
217 continue;
218 }
219
220 pc->MaxTextureImageUnits =
221 _min(screen->get_shader_param(screen, sh,
222 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
223 MAX_TEXTURE_IMAGE_UNITS);
224
225 pc->MaxInstructions =
226 pc->MaxNativeInstructions =
227 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
228 pc->MaxAluInstructions =
229 pc->MaxNativeAluInstructions =
230 screen->get_shader_param(screen, sh,
231 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
232 pc->MaxTexInstructions =
233 pc->MaxNativeTexInstructions =
234 screen->get_shader_param(screen, sh,
235 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
236 pc->MaxTexIndirections =
237 pc->MaxNativeTexIndirections =
238 screen->get_shader_param(screen, sh,
239 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
240 pc->MaxAttribs =
241 pc->MaxNativeAttribs =
242 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
243 pc->MaxTemps =
244 pc->MaxNativeTemps =
245 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
246 pc->MaxAddressRegs =
247 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
248
249 pc->MaxUniformComponents =
250 screen->get_shader_param(screen, sh,
251 PIPE_SHADER_CAP_MAX_CONST_BUFFER0_SIZE) / 4;
252
253 /* reserve space in the default-uniform for lowered state */
254 if (sh == PIPE_SHADER_VERTEX ||
255 sh == PIPE_SHADER_TESS_EVAL ||
256 sh == PIPE_SHADER_GEOMETRY) {
257
258 if (!screen->get_param(screen, PIPE_CAP_CLIP_PLANES))
259 pc->MaxUniformComponents -= 4 * MAX_CLIP_PLANES;
260
261 if (!screen->get_param(screen, PIPE_CAP_POINT_SIZE_FIXED))
262 pc->MaxUniformComponents -= 4;
263 } else if (sh == PIPE_SHADER_FRAGMENT) {
264 if (!screen->get_param(screen, PIPE_CAP_ALPHA_TEST))
265 pc->MaxUniformComponents -= 4;
266 }
267
268
269 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
270 MAX_UNIFORMS * 4);
271
272 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
273 * This gives us a limit of 4096 values - but we may need to generate
274 * internal values in addition to what the source program uses. So, we
275 * drop the limit one step lower, to 2048, to be safe.
276 */
277 pc->MaxParameters =
278 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
279 pc->MaxInputComponents =
280 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
281 pc->MaxOutputComponents =
282 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
283
284
285 pc->MaxUniformBlocks =
286 screen->get_shader_param(screen, sh,
287 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
288 if (pc->MaxUniformBlocks)
289 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
290 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
291
292 pc->MaxCombinedUniformComponents =
293 pc->MaxUniformComponents +
294 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
295
296 pc->MaxShaderStorageBlocks =
297 screen->get_shader_param(screen, sh,
298 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
299
300 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
301 if (temp) {
302 /*
303 * for separate atomic counters get the actual hw limits
304 * per stage on atomic counters and buffers
305 */
306 pc->MaxAtomicCounters = temp;
307 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
308 } else if (pc->MaxShaderStorageBlocks) {
309 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
310 /*
311 * without separate atomic counters, reserve half of the available
312 * SSBOs for atomic buffers, and the other half for normal SSBOs.
313 */
314 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
315 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
316 }
317 pc->MaxImageUniforms =
318 _min(screen->get_shader_param(screen, sh,
319 PIPE_SHADER_CAP_MAX_SHADER_IMAGES),
320 MAX_IMAGE_UNIFORMS);
321
322 /* Gallium doesn't really care about local vs. env parameters so use the
323 * same limits.
324 */
325 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
326 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
327
328 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
329 pc->LowInt.RangeMin = 31;
330 pc->LowInt.RangeMax = 30;
331 pc->LowInt.Precision = 0;
332 pc->MediumInt = pc->HighInt = pc->LowInt;
333
334 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INT16)) {
335 pc->LowInt.RangeMin = 15;
336 pc->LowInt.RangeMax = 14;
337 pc->MediumInt = pc->LowInt;
338 }
339 }
340
341 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16)) {
342 pc->LowFloat.RangeMin = 15;
343 pc->LowFloat.RangeMax = 15;
344 pc->LowFloat.Precision = 10;
345 pc->MediumFloat = pc->LowFloat;
346 }
347
348 /* TODO: make these more fine-grained if anyone needs it */
349 options->MaxIfDepth =
350 screen->get_shader_param(screen, sh,
351 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
352
353 options->EmitNoMainReturn =
354 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
355
356 options->EmitNoCont =
357 !screen->get_shader_param(screen, sh,
358 PIPE_SHADER_CAP_CONT_SUPPORTED);
359
360 options->EmitNoIndirectInput =
361 !screen->get_shader_param(screen, sh,
362 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
363 options->EmitNoIndirectOutput =
364 !screen->get_shader_param(screen, sh,
365 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
366 options->EmitNoIndirectTemp =
367 !screen->get_shader_param(screen, sh,
368 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
369 options->EmitNoIndirectUniform =
370 !screen->get_shader_param(screen, sh,
371 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
372
373 if (pc->MaxNativeInstructions &&
374 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
375 can_ubo = false;
376 }
377
378 if (sh == PIPE_SHADER_VERTEX || sh == PIPE_SHADER_GEOMETRY) {
379 if (screen->get_param(screen, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED))
380 options->LowerBuiltinVariablesXfb |= VARYING_BIT_POS;
381 if (screen->get_param(screen, PIPE_CAP_PSIZ_CLAMPED))
382 options->LowerBuiltinVariablesXfb |= VARYING_BIT_PSIZ;
383 }
384
385 options->LowerPrecisionFloat16 =
386 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16);
387 options->LowerPrecisionDerivatives =
388 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16_DERIVATIVES);
389 options->LowerPrecisionInt16 =
390 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INT16);
391 options->LowerPrecisionConstants =
392 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_GLSL_16BIT_CONSTS);
393 options->LowerPrecisionFloat16Uniforms =
394 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16_CONST_BUFFERS);
395 }
396
397 c->MaxUserAssignableUniformLocations =
398 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
399 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
400 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
401 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
402 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
403
404 c->GLSLLowerConstArrays =
405 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
406 c->GLSLTessLevelsAsInputs =
407 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
408 c->PrimitiveRestartForPatches = false;
409
410 c->MaxCombinedTextureImageUnits =
411 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
412 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
413 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
414 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
415 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
416 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
417 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
418
419 /* This depends on program constants. */
420 c->MaxTextureCoordUnits
421 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
422 MAX_TEXTURE_COORD_UNITS);
423
424 c->MaxTextureUnits =
425 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
426 c->MaxTextureCoordUnits);
427
428 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
429 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
430
431 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
432 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
433 c->MaxGeometryOutputVertices =
434 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
435 c->MaxGeometryTotalOutputComponents =
436 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
437 c->MaxGeometryShaderInvocations =
438 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
439 c->MaxTessPatchComponents =
440 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
441 MAX_VARYING) * 4;
442
443 c->MinProgramTexelOffset =
444 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
445 c->MaxProgramTexelOffset =
446 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
447
448 c->MaxProgramTextureGatherComponents =
449 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
450 c->MinProgramTextureGatherOffset =
451 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
452 c->MaxProgramTextureGatherOffset =
453 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
454
455 c->MaxTransformFeedbackBuffers =
456 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
457 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
458 MAX_FEEDBACK_BUFFERS);
459 c->MaxTransformFeedbackSeparateComponents =
460 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
461 c->MaxTransformFeedbackInterleavedComponents =
462 screen->get_param(screen,
463 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
464 c->MaxVertexStreams =
465 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
466
467 /* The vertex stream must fit into pipe_stream_output_info::stream */
468 assert(c->MaxVertexStreams <= 4);
469
470 c->MaxVertexAttribStride
471 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
472
473 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
474 * is only 16 bits.
475 */
476 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
477 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
478
479 c->GLSLSkipStrictMaxUniformLimitCheck =
480 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
481
482 c->UniformBufferOffsetAlignment =
483 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
484
485 if (can_ubo) {
486 extensions->ARB_uniform_buffer_object = GL_TRUE;
487 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
488 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
489 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
490 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
491 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
492 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
493 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
494 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
495 }
496
497 c->GLSLFragCoordIsSysVal =
498 screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL);
499 c->GLSLPointCoordIsSysVal =
500 screen->get_param(screen, PIPE_CAP_FS_POINT_IS_SYSVAL);
501 c->GLSLFrontFacingIsSysVal =
502 screen->get_param(screen, PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL);
503
504 /* GL_ARB_get_program_binary */
505 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
506 c->NumProgramBinaryFormats = 1;
507 /* GL_ARB_gl_spirv */
508 if (screen->get_param(screen, PIPE_CAP_GL_SPIRV) &&
509 (api == API_OPENGL_CORE || api == API_OPENGL_COMPAT))
510 c->NumShaderBinaryFormats = 1;
511
512 c->MaxAtomicBufferBindings =
513 MAX2(c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers,
514 c->Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers);
515 c->MaxAtomicBufferSize = ATOMIC_COUNTER_SIZE *
516 MAX2(c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters,
517 c->Program[MESA_SHADER_COMPUTE].MaxAtomicCounters);
518
519 c->MaxCombinedAtomicBuffers =
520 MIN2(screen->get_param(screen,
521 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
522 MAX_COMBINED_ATOMIC_BUFFERS);
523 if (!c->MaxCombinedAtomicBuffers) {
524 c->MaxCombinedAtomicBuffers = MAX2(
525 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
526 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
527 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
528 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
529 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers,
530 c->Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers);
531 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
532 }
533
534 c->MaxCombinedAtomicCounters =
535 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
536 if (!c->MaxCombinedAtomicCounters)
537 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
538
539 if (c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers) {
540 extensions->ARB_shader_atomic_counters = GL_TRUE;
541 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
542 }
543
544 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
545 c->ShaderStorageBufferOffsetAlignment =
546 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
547 if (c->ShaderStorageBufferOffsetAlignment) {
548 c->MaxCombinedShaderStorageBlocks =
549 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
550 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
551 if (!c->MaxCombinedShaderStorageBlocks) {
552 c->MaxCombinedShaderStorageBlocks = MAX2(
553 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
554 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
555 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
556 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
557 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks,
558 c->Program[MESA_SHADER_COMPUTE].MaxShaderStorageBlocks);
559 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
560 }
561 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
562
563 c->MaxCombinedShaderOutputResources +=
564 c->MaxCombinedShaderStorageBlocks;
565 c->MaxShaderStorageBlockSize =
566 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE_UINT);
567 if (c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks)
568 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
569 }
570
571 c->MaxCombinedImageUniforms =
572 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
573 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
574 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
575 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
576 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
577 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
578 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
579 c->MaxImageUnits = MAX_IMAGE_UNITS;
580 if (c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
581 screen->get_param(screen, PIPE_CAP_IMAGE_STORE_FORMATTED)) {
582 extensions->ARB_shader_image_load_store = GL_TRUE;
583 extensions->ARB_shader_image_size = GL_TRUE;
584 }
585
586 /* ARB_framebuffer_no_attachments */
587 c->MaxFramebufferWidth = c->MaxViewportWidth;
588 c->MaxFramebufferHeight = c->MaxViewportHeight;
589 /* NOTE: we cheat here a little by assuming that
590 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
591 * number of layers as we need, although we technically
592 * could have more the generality is not really useful
593 * in practicality.
594 */
595 c->MaxFramebufferLayers =
596 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
597
598 c->MaxWindowRectangles =
599 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
600
601 c->SparseBufferPageSize =
602 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
603
604 c->AllowMappedBuffersDuringExecution =
605 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
606
607 c->UseSTD430AsDefaultPacking =
608 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
609
610 c->MaxSubpixelPrecisionBiasBits =
611 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
612
613 c->ConservativeRasterDilateRange[0] =
614 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
615 c->ConservativeRasterDilateRange[1] =
616 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
617 c->ConservativeRasterDilateGranularity =
618 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
619
620 /* limit the max combined shader output resources to a driver limit */
621 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
622 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
623 c->MaxCombinedShaderOutputResources = temp;
624
625 c->VertexBufferOffsetIsInt32 =
626 screen->get_param(screen, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET);
627
628 c->UseVAOFastPath =
629 screen->get_param(screen, PIPE_CAP_ALLOW_DYNAMIC_VAO_FASTPATH);
630
631 c->glBeginEndBufferSize =
632 screen->get_param(screen, PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE);
633
634 c->MaxSparseTextureSize =
635 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_TEXTURE_SIZE);
636 c->MaxSparse3DTextureSize =
637 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_3D_TEXTURE_SIZE);
638 c->MaxSparseArrayTextureLayers =
639 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS);
640 c->SparseTextureFullArrayCubeMipmaps =
641 screen->get_param(screen, PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS);
642
643 c->HardwareAcceleratedSelect =
644 screen->get_param(screen, PIPE_CAP_HARDWARE_GL_SELECT);
645
646 c->AllowGLThreadBufferSubDataOpt =
647 screen->get_param(screen, PIPE_CAP_ALLOW_GLTHREAD_BUFFER_SUBDATA_OPT);
648
649 c->HasDrawVertexState =
650 screen->get_param(screen, PIPE_CAP_DRAW_VERTEX_STATE);
651
652 c->ShaderSubgroupSize =
653 screen->get_param(screen, PIPE_CAP_SHADER_SUBGROUP_SIZE);
654 c->ShaderSubgroupSupportedStages =
655 mesa_to_gl_stages(screen->get_param(screen, PIPE_CAP_SHADER_SUBGROUP_SUPPORTED_STAGES));
656 c->ShaderSubgroupSupportedFeatures =
657 screen->get_param(screen, PIPE_CAP_SHADER_SUBGROUP_SUPPORTED_FEATURES);
658 c->ShaderSubgroupQuadAllStages =
659 screen->get_param(screen, PIPE_CAP_SHADER_SUBGROUP_QUAD_ALL_STAGES);
660 }
661
662
663 /**
664 * Given a member \c x of struct gl_extensions, return offset of
665 * \c x in bytes.
666 */
667 #define o(x) offsetof(struct gl_extensions, x)
668
669
670 struct st_extension_cap_mapping {
671 int extension_offset;
672 int cap;
673 };
674
675 struct st_extension_format_mapping {
676 int extension_offset[2];
677 enum pipe_format format[32];
678
679 /* If TRUE, at least one format must be supported for the extensions to be
680 * advertised. If FALSE, all the formats must be supported. */
681 GLboolean need_at_least_one;
682 };
683
684 /**
685 * Enable extensions if certain pipe formats are supported by the driver.
686 * What extensions will be enabled and what formats must be supported is
687 * described by the array of st_extension_format_mapping.
688 *
689 * target and bind_flags are passed to is_format_supported.
690 */
691 static void
init_format_extensions(struct pipe_screen * screen,struct gl_extensions * extensions,const struct st_extension_format_mapping * mapping,unsigned num_mappings,enum pipe_texture_target target,unsigned bind_flags)692 init_format_extensions(struct pipe_screen *screen,
693 struct gl_extensions *extensions,
694 const struct st_extension_format_mapping *mapping,
695 unsigned num_mappings,
696 enum pipe_texture_target target,
697 unsigned bind_flags)
698 {
699 GLboolean *extension_table = (GLboolean *) extensions;
700 unsigned i;
701 int j;
702 int num_formats = ARRAY_SIZE(mapping->format);
703 int num_ext = ARRAY_SIZE(mapping->extension_offset);
704
705 for (i = 0; i < num_mappings; i++) {
706 int num_supported = 0;
707
708 /* Examine each format in the list. */
709 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
710 if (screen->is_format_supported(screen, mapping[i].format[j],
711 target, 0, 0, bind_flags)) {
712 num_supported++;
713 }
714 }
715
716 if (!num_supported ||
717 (!mapping[i].need_at_least_one && num_supported != j)) {
718 continue;
719 }
720
721 /* Enable all extensions in the list. */
722 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
723 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
724 }
725 }
726
727
728 /**
729 * Given a list of formats and bind flags, return the maximum number
730 * of samples supported by any of those formats.
731 */
732 static unsigned
get_max_samples_for_formats(struct pipe_screen * screen,unsigned num_formats,const enum pipe_format * formats,unsigned max_samples,unsigned bind)733 get_max_samples_for_formats(struct pipe_screen *screen,
734 unsigned num_formats,
735 const enum pipe_format *formats,
736 unsigned max_samples,
737 unsigned bind)
738 {
739 unsigned i, f;
740
741 for (i = max_samples; i > 0; --i) {
742 for (f = 0; f < num_formats; f++) {
743 if (screen->is_format_supported(screen, formats[f],
744 PIPE_TEXTURE_2D, i, i, bind)) {
745 return i;
746 }
747 }
748 }
749 return 0;
750 }
751
752 static unsigned
get_max_samples_for_formats_advanced(struct pipe_screen * screen,unsigned num_formats,const enum pipe_format * formats,unsigned max_samples,unsigned num_storage_samples,unsigned bind)753 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
754 unsigned num_formats,
755 const enum pipe_format *formats,
756 unsigned max_samples,
757 unsigned num_storage_samples,
758 unsigned bind)
759 {
760 unsigned i, f;
761
762 for (i = max_samples; i > 0; --i) {
763 for (f = 0; f < num_formats; f++) {
764 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
765 i, num_storage_samples, bind)) {
766 return i;
767 }
768 }
769 }
770 return 0;
771 }
772
773 /**
774 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
775 * which GL extensions are supported.
776 * Quite a few extensions are always supported because they are standard
777 * features or can be built on top of other gallium features.
778 * Some fine tuning may still be needed.
779 */
st_init_extensions(struct pipe_screen * screen,struct gl_constants * consts,struct gl_extensions * extensions,struct st_config_options * options,gl_api api)780 void st_init_extensions(struct pipe_screen *screen,
781 struct gl_constants *consts,
782 struct gl_extensions *extensions,
783 struct st_config_options *options,
784 gl_api api)
785 {
786 unsigned i;
787 GLboolean *extension_table = (GLboolean *) extensions;
788
789 static const struct st_extension_cap_mapping cap_mapping[] = {
790 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
791 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
792 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
793 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
794 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
795 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
796 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
797 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
798 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
799 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
800 { o(ARB_derivative_control), PIPE_CAP_FS_FINE_DERIVATIVE },
801 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
802 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
803 { o(ARB_draw_instanced), PIPE_CAP_VS_INSTANCEID },
804 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
805 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
806 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
807 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
808 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
809 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
810 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
811 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
812 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
813 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
814 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
815 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
816 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
817 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
818 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
819 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
820 { o(ARB_shader_ballot), PIPE_CAP_SHADER_BALLOT },
821 { o(ARB_shader_clock), PIPE_CAP_SHADER_CLOCK },
822 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
823 { o(ARB_shader_group_vote), PIPE_CAP_SHADER_GROUP_VOTE },
824 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
825 { o(EXT_shader_image_load_store), PIPE_CAP_IMAGE_ATOMIC_INC_WRAP },
826 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
827 { o(ARB_shader_texture_image_samples), PIPE_CAP_TEXTURE_QUERY_SAMPLES },
828 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
829 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
830 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
831 { o(ARB_sparse_texture), PIPE_CAP_MAX_SPARSE_TEXTURE_SIZE },
832 { o(ARB_sparse_texture2), PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY },
833 { o(ARB_sparse_texture_clamp), PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD },
834 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
835 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
836 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
837 { o(ARB_texture_filter_minmax), PIPE_CAP_SAMPLER_REDUCTION_MINMAX_ARB },
838 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
839 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
840 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
841 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
842 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
843 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
844 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
845 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
846 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
847 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
848 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
849
850 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
851 { o(EXT_demote_to_helper_invocation), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION },
852 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
853 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
854 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
855 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
856 #ifndef _WIN32
857 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
858 #else
859 { o(EXT_memory_object_win32), PIPE_CAP_MEMOBJ },
860 #endif
861 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
862 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
863 #ifndef _WIN32
864 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
865 #else
866 { o(EXT_semaphore_win32), PIPE_CAP_FENCE_SIGNAL },
867 #endif
868 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
869 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
870 { o(EXT_texture_compression_astc_decode_mode), PIPE_CAP_ASTC_DECODE_MODE },
871 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
872 { o(EXT_texture_filter_minmax), PIPE_CAP_SAMPLER_REDUCTION_MINMAX },
873 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
874 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
875 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
876 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
877 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
878
879 { o(KHR_shader_subgroup), PIPE_CAP_SHADER_SUBGROUP_SIZE },
880
881 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
882 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
883 { o(AMD_gpu_shader_half_float), PIPE_CAP_FP16 },
884 { o(AMD_performance_monitor), PIPE_CAP_PERFORMANCE_MONITOR },
885 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
886 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
887 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
888 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
889 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
890 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
891 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
892 { o(NV_alpha_to_coverage_dither_control), PIPE_CAP_ALPHA_TO_COVERAGE_DITHER_CONTROL },
893 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
894 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
895 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
896 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
897 { o(NV_shader_atomic_float), PIPE_CAP_IMAGE_ATOMIC_FLOAT_ADD },
898 { o(NV_shader_atomic_int64), PIPE_CAP_SHADER_ATOMIC_INT64 },
899 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
900 { o(NV_viewport_array2), PIPE_CAP_VIEWPORT_MASK },
901 { o(NV_viewport_swizzle), PIPE_CAP_VIEWPORT_SWIZZLE },
902 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
903
904 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
905 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
906 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
907 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
908 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP },
909 { o(ARM_shader_framebuffer_fetch_depth_stencil), PIPE_CAP_FBFETCH_ZS },
910 { o(MESA_texture_const_bandwidth), PIPE_CAP_HAS_CONST_BW },
911 };
912
913 /* Required: render target and sampler support */
914 static const struct st_extension_format_mapping rendertarget_mapping[] = {
915 { { o(ARB_texture_rgb10_a2ui) },
916 { PIPE_FORMAT_R10G10B10A2_UINT,
917 PIPE_FORMAT_B10G10R10A2_UINT },
918 GL_TRUE }, /* at least one format must be supported */
919
920 { { o(EXT_sRGB) },
921 { PIPE_FORMAT_A8B8G8R8_SRGB,
922 PIPE_FORMAT_B8G8R8A8_SRGB,
923 PIPE_FORMAT_R8G8B8A8_SRGB },
924 GL_TRUE }, /* at least one format must be supported */
925
926 { { o(EXT_packed_float) },
927 { PIPE_FORMAT_R11G11B10_FLOAT } },
928
929 { { o(EXT_texture_integer) },
930 { PIPE_FORMAT_R32G32B32A32_UINT,
931 PIPE_FORMAT_R32G32B32A32_SINT } },
932
933 { { o(ARB_texture_rg) },
934 { PIPE_FORMAT_R8_UNORM,
935 PIPE_FORMAT_R8G8_UNORM } },
936
937 { { o(EXT_texture_norm16) },
938 { PIPE_FORMAT_R16_UNORM,
939 PIPE_FORMAT_R16G16_UNORM,
940 PIPE_FORMAT_R16G16B16A16_UNORM } },
941
942 { { o(EXT_render_snorm) },
943 { PIPE_FORMAT_R8_SNORM,
944 PIPE_FORMAT_R8G8_SNORM,
945 PIPE_FORMAT_R8G8B8A8_SNORM,
946 PIPE_FORMAT_R16_SNORM,
947 PIPE_FORMAT_R16G16_SNORM,
948 PIPE_FORMAT_R16G16B16A16_SNORM } },
949
950 { { o(EXT_color_buffer_half_float) },
951 { PIPE_FORMAT_R16_FLOAT,
952 PIPE_FORMAT_R16G16_FLOAT,
953 PIPE_FORMAT_R16G16B16A16_FLOAT } },
954
955 { { o(EXT_color_buffer_float) },
956 { PIPE_FORMAT_R16_FLOAT,
957 PIPE_FORMAT_R16G16_FLOAT,
958 PIPE_FORMAT_R16G16B16A16_FLOAT,
959 PIPE_FORMAT_R32_FLOAT,
960 PIPE_FORMAT_R32G32_FLOAT,
961 PIPE_FORMAT_R32G32B32A32_FLOAT } },
962 };
963
964 /* Required: render target, sampler, and blending */
965 static const struct st_extension_format_mapping rt_blendable[] = {
966 { { o(EXT_float_blend) },
967 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
968 };
969
970 /* Required: depth stencil and sampler support */
971 static const struct st_extension_format_mapping depthstencil_mapping[] = {
972 { { o(ARB_depth_buffer_float) },
973 { PIPE_FORMAT_Z32_FLOAT,
974 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
975 };
976
977 /* Required: sampler support */
978 static const struct st_extension_format_mapping texture_mapping[] = {
979 { { o(OES_texture_float) },
980 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
981
982 { { o(OES_texture_half_float) },
983 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
984
985 { { o(ARB_texture_compression_rgtc) },
986 { PIPE_FORMAT_RGTC1_UNORM,
987 PIPE_FORMAT_RGTC1_SNORM,
988 PIPE_FORMAT_RGTC2_UNORM,
989 PIPE_FORMAT_RGTC2_SNORM } },
990
991 /* RGTC software fallback support. */
992 { { o(ARB_texture_compression_rgtc) },
993 { PIPE_FORMAT_R8_UNORM,
994 PIPE_FORMAT_R8_SNORM,
995 PIPE_FORMAT_R8G8_UNORM,
996 PIPE_FORMAT_R8G8_SNORM } },
997
998 { { o(EXT_texture_compression_latc) },
999 { PIPE_FORMAT_LATC1_UNORM,
1000 PIPE_FORMAT_LATC1_SNORM,
1001 PIPE_FORMAT_LATC2_UNORM,
1002 PIPE_FORMAT_LATC2_SNORM } },
1003
1004 /* LATC software fallback support. */
1005 { { o(EXT_texture_compression_latc) },
1006 { PIPE_FORMAT_L8_UNORM,
1007 PIPE_FORMAT_L8_SNORM,
1008 PIPE_FORMAT_L8A8_UNORM,
1009 PIPE_FORMAT_L8A8_SNORM } },
1010
1011 { { o(EXT_texture_compression_s3tc),
1012 o(ANGLE_texture_compression_dxt) },
1013 { PIPE_FORMAT_DXT1_RGB,
1014 PIPE_FORMAT_DXT1_RGBA,
1015 PIPE_FORMAT_DXT3_RGBA,
1016 PIPE_FORMAT_DXT5_RGBA } },
1017
1018 /* S3TC software fallback support. */
1019 { { o(EXT_texture_compression_s3tc),
1020 o(ANGLE_texture_compression_dxt) },
1021 { PIPE_FORMAT_R8G8B8A8_UNORM } },
1022
1023 { { o(EXT_texture_compression_s3tc_srgb) },
1024 { PIPE_FORMAT_DXT1_SRGB,
1025 PIPE_FORMAT_DXT1_SRGBA,
1026 PIPE_FORMAT_DXT3_SRGBA,
1027 PIPE_FORMAT_DXT5_SRGBA } },
1028
1029 /* S3TC SRGB software fallback support. */
1030 { { o(EXT_texture_compression_s3tc_srgb) },
1031 { PIPE_FORMAT_R8G8B8A8_SRGB } },
1032
1033 { { o(ARB_texture_compression_bptc) },
1034 { PIPE_FORMAT_BPTC_RGBA_UNORM,
1035 PIPE_FORMAT_BPTC_SRGBA,
1036 PIPE_FORMAT_BPTC_RGB_FLOAT,
1037 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
1038
1039 /* BPTC software fallback support. */
1040 { { o(ARB_texture_compression_bptc) },
1041 { PIPE_FORMAT_R8G8B8A8_UNORM,
1042 PIPE_FORMAT_R8G8B8A8_SRGB,
1043 PIPE_FORMAT_R16G16B16X16_FLOAT } },
1044
1045 { { o(TDFX_texture_compression_FXT1) },
1046 { PIPE_FORMAT_FXT1_RGB,
1047 PIPE_FORMAT_FXT1_RGBA } },
1048
1049 { { o(KHR_texture_compression_astc_ldr),
1050 o(KHR_texture_compression_astc_sliced_3d) },
1051 { PIPE_FORMAT_ASTC_4x4,
1052 PIPE_FORMAT_ASTC_5x4,
1053 PIPE_FORMAT_ASTC_5x5,
1054 PIPE_FORMAT_ASTC_6x5,
1055 PIPE_FORMAT_ASTC_6x6,
1056 PIPE_FORMAT_ASTC_8x5,
1057 PIPE_FORMAT_ASTC_8x6,
1058 PIPE_FORMAT_ASTC_8x8,
1059 PIPE_FORMAT_ASTC_10x5,
1060 PIPE_FORMAT_ASTC_10x6,
1061 PIPE_FORMAT_ASTC_10x8,
1062 PIPE_FORMAT_ASTC_10x10,
1063 PIPE_FORMAT_ASTC_12x10,
1064 PIPE_FORMAT_ASTC_12x12,
1065 PIPE_FORMAT_ASTC_4x4_SRGB,
1066 PIPE_FORMAT_ASTC_5x4_SRGB,
1067 PIPE_FORMAT_ASTC_5x5_SRGB,
1068 PIPE_FORMAT_ASTC_6x5_SRGB,
1069 PIPE_FORMAT_ASTC_6x6_SRGB,
1070 PIPE_FORMAT_ASTC_8x5_SRGB,
1071 PIPE_FORMAT_ASTC_8x6_SRGB,
1072 PIPE_FORMAT_ASTC_8x8_SRGB,
1073 PIPE_FORMAT_ASTC_10x5_SRGB,
1074 PIPE_FORMAT_ASTC_10x6_SRGB,
1075 PIPE_FORMAT_ASTC_10x8_SRGB,
1076 PIPE_FORMAT_ASTC_10x10_SRGB,
1077 PIPE_FORMAT_ASTC_12x10_SRGB,
1078 PIPE_FORMAT_ASTC_12x12_SRGB } },
1079
1080 /* ASTC software fallback support. */
1081 { { o(KHR_texture_compression_astc_ldr),
1082 o(KHR_texture_compression_astc_sliced_3d) },
1083 { PIPE_FORMAT_R8G8B8A8_UNORM,
1084 PIPE_FORMAT_R8G8B8A8_SRGB } },
1085
1086 { { o(EXT_texture_shared_exponent) },
1087 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
1088
1089 { { o(EXT_texture_snorm) },
1090 { PIPE_FORMAT_R8G8B8A8_SNORM } },
1091
1092 { { o(EXT_texture_sRGB),
1093 o(EXT_texture_sRGB_decode) },
1094 { PIPE_FORMAT_A8B8G8R8_SRGB,
1095 PIPE_FORMAT_B8G8R8A8_SRGB,
1096 PIPE_FORMAT_A8R8G8B8_SRGB,
1097 PIPE_FORMAT_R8G8B8A8_SRGB},
1098 GL_TRUE }, /* at least one format must be supported */
1099
1100 { { o(EXT_texture_sRGB_R8) },
1101 { PIPE_FORMAT_R8_SRGB }, },
1102
1103 { { o(EXT_texture_sRGB_RG8) },
1104 { PIPE_FORMAT_R8G8_SRGB }, },
1105
1106 { { o(EXT_texture_type_2_10_10_10_REV) },
1107 { PIPE_FORMAT_R10G10B10A2_UNORM,
1108 PIPE_FORMAT_B10G10R10A2_UNORM },
1109 GL_TRUE }, /* at least one format must be supported */
1110
1111 { { o(ATI_texture_compression_3dc) },
1112 { PIPE_FORMAT_LATC2_UNORM } },
1113
1114 { { o(ATI_texture_compression_3dc) },
1115 { PIPE_FORMAT_L8A8_UNORM } },
1116
1117 { { o(MESA_ycbcr_texture) },
1118 { PIPE_FORMAT_UYVY,
1119 PIPE_FORMAT_YUYV },
1120 GL_TRUE }, /* at least one format must be supported */
1121
1122 { { o(OES_compressed_ETC1_RGB8_texture) },
1123 { PIPE_FORMAT_ETC1_RGB8,
1124 PIPE_FORMAT_R8G8B8A8_UNORM },
1125 GL_TRUE }, /* at least one format must be supported */
1126
1127 { { o(ARB_stencil_texturing),
1128 o(ARB_texture_stencil8) },
1129 { PIPE_FORMAT_X24S8_UINT,
1130 PIPE_FORMAT_S8X24_UINT },
1131 GL_TRUE }, /* at least one format must be supported */
1132
1133 { { o(AMD_compressed_ATC_texture) },
1134 { PIPE_FORMAT_ATC_RGB,
1135 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
1136 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
1137 };
1138
1139 /* Required: vertex fetch support. */
1140 static const struct st_extension_format_mapping vertex_mapping[] = {
1141 { { o(EXT_vertex_array_bgra) },
1142 { PIPE_FORMAT_B8G8R8A8_UNORM } },
1143 { { o(ARB_vertex_type_2_10_10_10_rev) },
1144 { PIPE_FORMAT_R10G10B10A2_UNORM,
1145 PIPE_FORMAT_B10G10R10A2_UNORM,
1146 PIPE_FORMAT_R10G10B10A2_SNORM,
1147 PIPE_FORMAT_B10G10R10A2_SNORM,
1148 PIPE_FORMAT_R10G10B10A2_USCALED,
1149 PIPE_FORMAT_B10G10R10A2_USCALED,
1150 PIPE_FORMAT_R10G10B10A2_SSCALED,
1151 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1152 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1153 { PIPE_FORMAT_R11G11B10_FLOAT } },
1154 };
1155
1156 static const struct st_extension_format_mapping tbo_rgb32[] = {
1157 { {o(ARB_texture_buffer_object_rgb32) },
1158 { PIPE_FORMAT_R32G32B32_FLOAT,
1159 PIPE_FORMAT_R32G32B32_UINT,
1160 PIPE_FORMAT_R32G32B32_SINT,
1161 } },
1162 };
1163
1164 /* Expose the extensions which directly correspond to gallium caps. */
1165 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1166 if (screen->get_param(screen, cap_mapping[i].cap)) {
1167 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1168 }
1169 }
1170
1171 /* EXT implies ARB here */
1172 if (extensions->EXT_texture_filter_minmax)
1173 extensions->ARB_texture_filter_minmax = GL_TRUE;
1174
1175 /* Expose the extensions which directly correspond to gallium formats. */
1176 init_format_extensions(screen, extensions, rendertarget_mapping,
1177 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1178 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1179 init_format_extensions(screen, extensions, rt_blendable,
1180 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1181 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1182 PIPE_BIND_BLENDABLE);
1183 init_format_extensions(screen, extensions, depthstencil_mapping,
1184 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1185 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1186 init_format_extensions(screen, extensions, texture_mapping,
1187 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1188 PIPE_BIND_SAMPLER_VIEW);
1189 init_format_extensions(screen, extensions, vertex_mapping,
1190 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1191 PIPE_BIND_VERTEX_BUFFER);
1192
1193 /* Figure out GLSL support and set GLSLVersion to it. */
1194 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1195 consts->GLSLVersionCompat =
1196 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1197
1198 const unsigned ESSLVersion =
1199 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1200 const unsigned GLSLVersion =
1201 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1202 consts->GLSLVersion;
1203
1204 _mesa_override_glsl_version(consts);
1205
1206 if (options->force_glsl_version > 0 &&
1207 options->force_glsl_version <= GLSLVersion) {
1208 consts->ForceGLSLVersion = options->force_glsl_version;
1209 }
1210
1211 consts->ForceCompatShaders = options->force_compat_shaders;
1212
1213 consts->AllowExtraPPTokens = options->allow_extra_pp_tokens;
1214
1215 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1216 consts->AllowGLSLCompatShaders = options->allow_glsl_compat_shaders;
1217
1218 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1219
1220 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1221
1222 consts->dri_config_options_sha1 = options->config_options_sha1;
1223
1224 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1225
1226 consts->DoDCEBeforeClipCullAnalysis = options->do_dce_before_clip_cull_analysis;
1227
1228 consts->GLSLIgnoreWriteToReadonlyVar = options->glsl_ignore_write_to_readonly_var;
1229
1230 consts->ForceMapBufferSynchronized = options->force_gl_map_buffer_synchronized;
1231
1232 consts->PrimitiveRestartFixedIndex =
1233 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX);
1234
1235 /* Technically we are turning on the EXT_gpu_shader5 extension,
1236 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1237 * switches on EXT_gpu_shader5:
1238 */
1239 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1240 extensions->ARB_gpu_shader5 = GL_TRUE;
1241
1242 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1243 extensions->ARB_gpu_shader5 = GL_TRUE;
1244 if (GLSLVersion >= 410)
1245 extensions->ARB_shader_precision = GL_TRUE;
1246
1247 /* This extension needs full OpenGL 3.2, but we don't know if that's
1248 * supported at this point. Only check the GLSL version. */
1249 if (GLSLVersion >= 150 &&
1250 screen->get_param(screen, PIPE_CAP_VS_LAYER_VIEWPORT)) {
1251 extensions->AMD_vertex_shader_layer = GL_TRUE;
1252 }
1253
1254 if (GLSLVersion >= 140) {
1255 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1256 * we can always expose it if the driver can do 140. Supporting
1257 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1258 * pipe cap.
1259 */
1260 extensions->EXT_gpu_shader4 = GL_TRUE;
1261 extensions->EXT_texture_buffer_object = GL_TRUE;
1262
1263 if (consts->MaxTransformFeedbackBuffers &&
1264 screen->get_param(screen, PIPE_CAP_SHADER_ARRAY_COMPONENTS))
1265 extensions->ARB_enhanced_layouts = GL_TRUE;
1266 }
1267
1268 if (GLSLVersion >= 130) {
1269 consts->NativeIntegers = GL_TRUE;
1270 consts->MaxClipPlanes = 8;
1271
1272 uint32_t drv_clip_planes = screen->get_param(screen, PIPE_CAP_CLIP_PLANES);
1273 /* only override for > 1 - 0 if none, 1 is MAX, >2 overrides MAX */
1274 if (drv_clip_planes > 1)
1275 consts->MaxClipPlanes = drv_clip_planes;
1276
1277 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1278 extensions->ARB_conservative_depth = GL_TRUE;
1279 extensions->ARB_shading_language_packing = GL_TRUE;
1280 extensions->OES_depth_texture_cube_map = GL_TRUE;
1281 extensions->ARB_shading_language_420pack = GL_TRUE;
1282 extensions->ARB_texture_query_levels = GL_TRUE;
1283
1284 extensions->ARB_shader_bit_encoding = GL_TRUE;
1285
1286 extensions->EXT_shader_integer_mix = GL_TRUE;
1287 extensions->ARB_arrays_of_arrays = GL_TRUE;
1288 extensions->MESA_shader_integer_functions = GL_TRUE;
1289
1290 switch (screen->get_param(screen, PIPE_CAP_MULTIVIEW)) {
1291 case 1:
1292 extensions->OVR_multiview = GL_TRUE;
1293 break;
1294 case 2:
1295 extensions->OVR_multiview = GL_TRUE;
1296 extensions->OVR_multiview2 = GL_TRUE;
1297 break;
1298 }
1299
1300 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1301 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1302 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1303 }
1304 } else {
1305 /* Optional integer support for GLSL 1.2. */
1306 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1307 PIPE_SHADER_CAP_INTEGERS) &&
1308 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1309 PIPE_SHADER_CAP_INTEGERS)) {
1310 consts->NativeIntegers = GL_TRUE;
1311
1312 extensions->EXT_shader_integer_mix = GL_TRUE;
1313 }
1314
1315 /* Integer textures make no sense before GLSL 1.30 */
1316 extensions->EXT_texture_integer = GL_FALSE;
1317 extensions->ARB_texture_rgb10_a2ui = GL_FALSE;
1318 }
1319
1320 if (options->glsl_zero_init) {
1321 consts->GLSLZeroInit = 1;
1322 } else {
1323 consts->GLSLZeroInit = screen->get_param(screen, PIPE_CAP_GLSL_ZERO_INIT);
1324 }
1325
1326 consts->ForceGLNamesReuse = options->force_gl_names_reuse;
1327
1328 consts->ForceIntegerTexNearest = options->force_integer_tex_nearest;
1329
1330 consts->VendorOverride = options->force_gl_vendor;
1331 consts->RendererOverride = options->force_gl_renderer;
1332
1333 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1334
1335 /* Below are the cases which cannot be moved into tables easily. */
1336
1337 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1338 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1339 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1340 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1341 extensions->ARB_tessellation_shader = GL_TRUE;
1342 }
1343
1344 /* OES_geometry_shader requires instancing */
1345 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1346 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1347 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1348 consts->MaxGeometryShaderInvocations >= 32) {
1349 extensions->OES_geometry_shader = GL_TRUE;
1350 }
1351
1352 /* Some hardware may not support indirect draws, but still wants ES
1353 * 3.1. This allows the extension to be enabled only in ES contexts to
1354 * avoid claiming hw support when there is none, and using a software
1355 * fallback for ES.
1356 */
1357 if (api == API_OPENGLES2 && ESSLVersion >= 310) {
1358 extensions->ARB_draw_indirect = GL_TRUE;
1359 }
1360
1361 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1362 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1363 */
1364 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1365 extensions->ARB_gpu_shader5;
1366
1367 /* Maximum sample count. */
1368 {
1369 static const enum pipe_format color_formats[] = {
1370 PIPE_FORMAT_R8G8B8A8_UNORM,
1371 PIPE_FORMAT_B8G8R8A8_UNORM,
1372 PIPE_FORMAT_A8R8G8B8_UNORM,
1373 PIPE_FORMAT_A8B8G8R8_UNORM,
1374 };
1375 static const enum pipe_format depth_formats[] = {
1376 PIPE_FORMAT_Z16_UNORM,
1377 PIPE_FORMAT_Z24X8_UNORM,
1378 PIPE_FORMAT_X8Z24_UNORM,
1379 PIPE_FORMAT_Z32_UNORM,
1380 PIPE_FORMAT_Z32_FLOAT
1381 };
1382 static const enum pipe_format int_formats[] = {
1383 PIPE_FORMAT_R8G8B8A8_SINT
1384 };
1385 static const enum pipe_format void_formats[] = {
1386 PIPE_FORMAT_NONE
1387 };
1388
1389 consts->MaxSamples =
1390 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1391 color_formats, 16,
1392 PIPE_BIND_RENDER_TARGET);
1393
1394 consts->MaxImageSamples =
1395 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1396 color_formats, 16,
1397 PIPE_BIND_SHADER_IMAGE);
1398
1399 consts->MaxColorTextureSamples =
1400 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1401 color_formats, consts->MaxSamples,
1402 PIPE_BIND_SAMPLER_VIEW);
1403
1404 consts->MaxDepthTextureSamples =
1405 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1406 depth_formats, consts->MaxSamples,
1407 PIPE_BIND_SAMPLER_VIEW);
1408
1409 consts->MaxIntegerSamples =
1410 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1411 int_formats, consts->MaxSamples,
1412 PIPE_BIND_SAMPLER_VIEW);
1413
1414 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1415 consts->MaxFramebufferSamples =
1416 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1417 void_formats, 32,
1418 PIPE_BIND_RENDER_TARGET);
1419
1420 if (extensions->AMD_framebuffer_multisample_advanced) {
1421 /* AMD_framebuffer_multisample_advanced */
1422 /* This can be greater than storage samples. */
1423 consts->MaxColorFramebufferSamples =
1424 get_max_samples_for_formats_advanced(screen,
1425 ARRAY_SIZE(color_formats),
1426 color_formats, 16,
1427 consts->MaxSamples,
1428 PIPE_BIND_RENDER_TARGET);
1429
1430 /* If the driver supports N color samples, it means it supports
1431 * N samples and N storage samples. N samples >= N storage
1432 * samples.
1433 */
1434 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1435 consts->MaxDepthStencilFramebufferSamples =
1436 consts->MaxDepthTextureSamples;
1437
1438 assert(consts->MaxColorFramebufferSamples >=
1439 consts->MaxDepthStencilFramebufferSamples);
1440 assert(consts->MaxDepthStencilFramebufferSamples >=
1441 consts->MaxColorFramebufferStorageSamples);
1442
1443 consts->NumSupportedMultisampleModes = 0;
1444
1445 unsigned depth_samples_supported = 0;
1446
1447 for (unsigned samples = 2;
1448 samples <= consts->MaxDepthStencilFramebufferSamples;
1449 samples++) {
1450 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1451 PIPE_TEXTURE_2D, samples, samples,
1452 PIPE_BIND_DEPTH_STENCIL))
1453 depth_samples_supported |= 1 << samples;
1454 }
1455
1456 for (unsigned samples = 2;
1457 samples <= consts->MaxColorFramebufferSamples;
1458 samples++) {
1459 for (unsigned depth_samples = 2;
1460 depth_samples <= samples; depth_samples++) {
1461 if (!(depth_samples_supported & (1 << depth_samples)))
1462 continue;
1463
1464 for (unsigned storage_samples = 2;
1465 storage_samples <= depth_samples; storage_samples++) {
1466 if (screen->is_format_supported(screen,
1467 PIPE_FORMAT_R8G8B8A8_UNORM,
1468 PIPE_TEXTURE_2D,
1469 samples,
1470 storage_samples,
1471 PIPE_BIND_RENDER_TARGET)) {
1472 unsigned i = consts->NumSupportedMultisampleModes;
1473
1474 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1475 consts->SupportedMultisampleModes[i].NumColorSamples =
1476 samples;
1477 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1478 storage_samples;
1479 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1480 depth_samples;
1481 consts->NumSupportedMultisampleModes++;
1482 }
1483 }
1484 }
1485 }
1486 }
1487 }
1488
1489 if (consts->MaxSamples >= 2) {
1490 /* Real MSAA support */
1491 extensions->EXT_framebuffer_multisample = GL_TRUE;
1492 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1493 }
1494 else if (consts->MaxSamples > 0 &&
1495 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1496 /* fake MSAA support */
1497 consts->FakeSWMSAA = GL_TRUE;
1498 extensions->EXT_framebuffer_multisample = GL_TRUE;
1499 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1500 extensions->ARB_texture_multisample = GL_TRUE;
1501 }
1502
1503 if (consts->MaxDualSourceDrawBuffers > 0 &&
1504 !options->disable_blend_func_extended)
1505 extensions->ARB_blend_func_extended = GL_TRUE;
1506
1507 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1508 extensions->ARB_timer_query) {
1509 extensions->EXT_timer_query = GL_TRUE;
1510 }
1511
1512 if (extensions->ARB_transform_feedback2 &&
1513 extensions->ARB_draw_instanced) {
1514 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1515 }
1516 if (options->force_glsl_extensions_warn)
1517 consts->ForceGLSLExtensionsWarn = 1;
1518
1519 if (options->disable_glsl_line_continuations)
1520 consts->DisableGLSLLineContinuations = 1;
1521
1522 if (options->disable_uniform_array_resize)
1523 consts->DisableUniformArrayResize = 1;
1524
1525 consts->AliasShaderExtension = options->alias_shader_extension;
1526
1527 if (options->allow_vertex_texture_bias)
1528 consts->AllowVertexTextureBias = GL_TRUE;
1529
1530 if (options->allow_glsl_extension_directive_midshader)
1531 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1532
1533 if (options->allow_glsl_120_subset_in_110)
1534 consts->AllowGLSL120SubsetIn110 = GL_TRUE;
1535
1536 if (options->allow_glsl_builtin_const_expression)
1537 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1538
1539 if (options->allow_glsl_relaxed_es)
1540 consts->AllowGLSLRelaxedES = GL_TRUE;
1541
1542 consts->MinMapBufferAlignment =
1543 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1544
1545 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1546 if (api == API_OPENGL_COMPAT &&
1547 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1548 extensions->ARB_texture_buffer_object = GL_FALSE;
1549
1550 if (extensions->ARB_texture_buffer_object) {
1551 consts->MaxTextureBufferSize =
1552 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_BUFFER_ELEMENTS_UINT);
1553 consts->TextureBufferOffsetAlignment =
1554 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1555
1556 if (consts->TextureBufferOffsetAlignment)
1557 extensions->ARB_texture_buffer_range = GL_TRUE;
1558
1559 init_format_extensions(screen, extensions, tbo_rgb32,
1560 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1561 PIPE_BIND_SAMPLER_VIEW);
1562 }
1563
1564 extensions->OES_texture_buffer =
1565 consts->Program[MESA_SHADER_COMPUTE].MaxImageUniforms &&
1566 extensions->ARB_texture_buffer_object &&
1567 extensions->ARB_texture_buffer_range &&
1568 extensions->ARB_texture_buffer_object_rgb32;
1569
1570 extensions->EXT_framebuffer_sRGB =
1571 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1572 extensions->EXT_sRGB;
1573
1574 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1575 * If the number of available texture indirections is very limited, then we
1576 * prefer to disable varying packing rather than run the risk of varying
1577 * packing preventing a shader from running.
1578 */
1579 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1580 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1581 /* We can't disable varying packing if transform feedback is available,
1582 * because transform feedback code assumes a packed varying layout.
1583 */
1584 if (!extensions->EXT_transform_feedback)
1585 consts->DisableVaryingPacking = GL_TRUE;
1586 }
1587
1588 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1589 consts->DisableTransformFeedbackPacking = GL_TRUE;
1590
1591 if (screen->get_param(screen, PIPE_CAP_PREFER_POT_ALIGNED_VARYINGS))
1592 consts->PreferPOTAlignedVaryings = GL_TRUE;
1593
1594 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1595 bool coherent_fb_fetch =
1596 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1597
1598 if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_ADVANCED))
1599 extensions->KHR_blend_equation_advanced = true;
1600
1601 if (max_fb_fetch_rts > 0) {
1602 extensions->KHR_blend_equation_advanced = true;
1603 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1604
1605 if (max_fb_fetch_rts >=
1606 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1607 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1608 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1609 }
1610 }
1611
1612 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1613 if (consts->MaxViewports >= 16) {
1614 if (GLSLVersion >= 400) {
1615 consts->ViewportBounds.Min = -32768.0;
1616 consts->ViewportBounds.Max = 32767.0;
1617 } else {
1618 consts->ViewportBounds.Min = -16384.0;
1619 consts->ViewportBounds.Max = 16383.0;
1620 }
1621 extensions->ARB_viewport_array = GL_TRUE;
1622 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1623 if (extensions->AMD_vertex_shader_layer)
1624 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1625 }
1626
1627 if (extensions->AMD_vertex_shader_layer &&
1628 extensions->AMD_vertex_shader_viewport_index &&
1629 screen->get_param(screen, PIPE_CAP_TES_LAYER_VIEWPORT))
1630 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1631
1632 /* ARB_framebuffer_no_attachments */
1633 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1634 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1635 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1636 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1637 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1638
1639 /* GL_ARB_ES3_compatibility.
1640 * Check requirements for GLSL ES 3.00.
1641 */
1642 if (GLSLVersion >= 130 &&
1643 extensions->ARB_uniform_buffer_object &&
1644 (extensions->NV_primitive_restart ||
1645 consts->PrimitiveRestartFixedIndex) &&
1646 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1647 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1648 /* Requirements for ETC2 emulation. */
1649 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1650 PIPE_TEXTURE_2D, 0, 0,
1651 PIPE_BIND_SAMPLER_VIEW) &&
1652 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1653 PIPE_TEXTURE_2D, 0, 0,
1654 PIPE_BIND_SAMPLER_VIEW) &&
1655 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1656 PIPE_TEXTURE_2D, 0, 0,
1657 PIPE_BIND_SAMPLER_VIEW) &&
1658 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1659 PIPE_TEXTURE_2D, 0, 0,
1660 PIPE_BIND_SAMPLER_VIEW) &&
1661 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1662 PIPE_TEXTURE_2D, 0, 0,
1663 PIPE_BIND_SAMPLER_VIEW) &&
1664 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1665 PIPE_TEXTURE_2D, 0, 0,
1666 PIPE_BIND_SAMPLER_VIEW)) {
1667 extensions->ARB_ES3_compatibility = GL_TRUE;
1668 }
1669
1670 #ifdef HAVE_ST_VDPAU
1671 if (screen->get_video_param &&
1672 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1673 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1674 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1675 extensions->NV_vdpau_interop = GL_TRUE;
1676 }
1677 #endif
1678
1679 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1680 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1681 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1682 }
1683
1684 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1685 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1686 extensions->GREMEDY_string_marker = GL_TRUE;
1687
1688 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1689 uint64_t grid_size[3], block_size[3];
1690 uint64_t max_local_size, max_threads_per_block;
1691
1692 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1693 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1694 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1695 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1696 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1697 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1698 &max_threads_per_block);
1699 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1700 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1701 &max_local_size);
1702
1703 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1704 consts->MaxComputeSharedMemorySize = max_local_size;
1705
1706 for (i = 0; i < 3; i++) {
1707 /* There are tests that fail if we report more that INT_MAX - 1. */
1708 consts->MaxComputeWorkGroupCount[i] = MIN2(grid_size[i], INT_MAX - 1);
1709 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1710 }
1711
1712 extensions->ARB_compute_shader =
1713 max_threads_per_block >= 1024 &&
1714 extensions->ARB_shader_image_load_store &&
1715 extensions->ARB_shader_atomic_counters;
1716
1717 if (extensions->ARB_compute_shader) {
1718 uint64_t max_variable_threads_per_block = 0;
1719
1720 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1721 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1722 &max_variable_threads_per_block);
1723
1724 for (i = 0; i < 3; i++) {
1725 /* Clamp the values to avoid having a local work group size
1726 * greater than the maximum number of invocations.
1727 */
1728 consts->MaxComputeVariableGroupSize[i] =
1729 MIN2(consts->MaxComputeWorkGroupSize[i],
1730 max_variable_threads_per_block);
1731 }
1732 consts->MaxComputeVariableGroupInvocations =
1733 max_variable_threads_per_block;
1734
1735 extensions->ARB_compute_variable_group_size =
1736 max_variable_threads_per_block > 0;
1737 }
1738 }
1739
1740 extensions->ARB_texture_float =
1741 extensions->OES_texture_half_float &&
1742 extensions->OES_texture_float;
1743
1744 if (extensions->EXT_texture_filter_anisotropic &&
1745 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1746 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1747
1748 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1749
1750 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1751 * there's no clean way of telling whether we would support ES 3.1 from
1752 * here, so copy the condition from compute_version_es2 here. A lot of
1753 * these are redunant, but simpler to just have a (near-)exact copy here.
1754 */
1755 extensions->ARB_ES3_1_compatibility =
1756 consts->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
1757 extensions->ARB_ES3_compatibility &&
1758 extensions->ARB_arrays_of_arrays &&
1759 extensions->ARB_compute_shader &&
1760 extensions->ARB_draw_indirect &&
1761 extensions->ARB_explicit_uniform_location &&
1762 extensions->ARB_framebuffer_no_attachments &&
1763 extensions->ARB_shader_atomic_counters &&
1764 extensions->ARB_shader_image_load_store &&
1765 extensions->ARB_shader_image_size &&
1766 extensions->ARB_shader_storage_buffer_object &&
1767 extensions->ARB_shading_language_packing &&
1768 extensions->ARB_stencil_texturing &&
1769 extensions->ARB_texture_multisample &&
1770 extensions->ARB_gpu_shader5 &&
1771 extensions->EXT_shader_integer_mix;
1772
1773 extensions->OES_texture_cube_map_array =
1774 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1775 extensions->OES_geometry_shader &&
1776 extensions->ARB_texture_cube_map_array;
1777
1778 extensions->OES_viewport_array =
1779 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1780 extensions->OES_geometry_shader &&
1781 extensions->ARB_viewport_array;
1782
1783 extensions->OES_primitive_bounding_box =
1784 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1785
1786 consts->NoPrimitiveBoundingBoxOutput = true;
1787
1788 extensions->ANDROID_extension_pack_es31a =
1789 consts->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
1790 extensions->KHR_texture_compression_astc_ldr &&
1791 extensions->KHR_blend_equation_advanced &&
1792 extensions->OES_sample_variables &&
1793 extensions->ARB_texture_stencil8 &&
1794 extensions->ARB_texture_multisample &&
1795 extensions->OES_copy_image &&
1796 extensions->ARB_draw_buffers_blend &&
1797 extensions->OES_geometry_shader &&
1798 extensions->ARB_gpu_shader5 &&
1799 extensions->OES_primitive_bounding_box &&
1800 extensions->ARB_tessellation_shader &&
1801 extensions->OES_texture_buffer &&
1802 extensions->OES_texture_cube_map_array &&
1803 extensions->EXT_texture_sRGB_decode;
1804
1805 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1806 * before overall versions are selected. Also it's actually a subset of ES
1807 * 3.2, since it doesn't require ASTC or advanced blending.
1808 */
1809 extensions->ARB_ES3_2_compatibility =
1810 extensions->ARB_ES3_1_compatibility &&
1811 extensions->KHR_robustness &&
1812 extensions->ARB_copy_image &&
1813 extensions->ARB_draw_buffers_blend &&
1814 extensions->ARB_draw_elements_base_vertex &&
1815 extensions->OES_geometry_shader &&
1816 extensions->ARB_gpu_shader5 &&
1817 extensions->ARB_sample_shading &&
1818 extensions->ARB_tessellation_shader &&
1819 extensions->OES_texture_buffer &&
1820 extensions->ARB_texture_cube_map_array &&
1821 extensions->ARB_texture_stencil8 &&
1822 extensions->ARB_texture_multisample;
1823
1824 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1825 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1826 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1827 float max_dilate;
1828 bool pre_snap_triangles, pre_snap_points_lines;
1829
1830 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1831
1832 pre_snap_triangles =
1833 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1834 pre_snap_points_lines =
1835 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1836
1837 extensions->NV_conservative_raster =
1838 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1839
1840 if (extensions->NV_conservative_raster) {
1841 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1842 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1843 extensions->NV_conservative_raster_pre_snap =
1844 pre_snap_triangles && pre_snap_points_lines;
1845 }
1846 }
1847
1848 if (extensions->ARB_gl_spirv) {
1849 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1850 consts->SpirVExtensions->supported[SPV_KHR_shader_draw_parameters] =
1851 extensions->ARB_shader_draw_parameters;
1852 consts->SpirVExtensions->supported[SPV_KHR_storage_buffer_storage_class] = true;
1853 consts->SpirVExtensions->supported[SPV_KHR_variable_pointers] =
1854 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1855 consts->SpirVExtensions->supported[SPV_KHR_shader_ballot] =
1856 extensions->ARB_shader_ballot;
1857 consts->SpirVExtensions->supported[SPV_KHR_subgroup_vote] =
1858 extensions->ARB_shader_group_vote;
1859 }
1860
1861 consts->AllowDrawOutOfOrder =
1862 api == API_OPENGL_COMPAT &&
1863 options->allow_draw_out_of_order &&
1864 screen->get_param(screen, PIPE_CAP_ALLOW_DRAW_OUT_OF_ORDER);
1865 consts->GLThreadNopCheckFramebufferStatus = options->glthread_nop_check_framebuffer_status;
1866
1867 const struct nir_shader_compiler_options *nir_options =
1868 consts->ShaderCompilerOptions[MESA_SHADER_FRAGMENT].NirOptions;
1869
1870 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_INTEGERS) &&
1871 extensions->ARB_stencil_texturing &&
1872 screen->get_param(screen, PIPE_CAP_DOUBLES) &&
1873 !(nir_options->lower_doubles_options & nir_lower_fp64_full_software))
1874 extensions->NV_copy_depth_to_color = true;
1875 }
1876