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
76
77 /**
78 * Query driver to get implementation limits.
79 * Note that we have to limit/clamp against Mesa's internal limits too.
80 */
st_init_limits(struct pipe_screen * screen,struct gl_constants * c,struct gl_extensions * extensions,gl_api api)81 void st_init_limits(struct pipe_screen *screen,
82 struct gl_constants *c, struct gl_extensions *extensions,
83 gl_api api)
84 {
85 unsigned sh;
86 bool can_ubo = true;
87 int temp;
88
89 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
90 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
91 c->MaxTextureMbytes = MAX2(c->MaxTextureMbytes,
92 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_MB));
93
94 c->Max3DTextureLevels
95 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
96 MAX_TEXTURE_LEVELS);
97 extensions->OES_texture_3D = c->Max3DTextureLevels != 0;
98
99 c->MaxCubeTextureLevels
100 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
101 MAX_TEXTURE_LEVELS);
102
103 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
104
105 c->MaxArrayTextureLayers
106 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
107
108 /* Define max viewport size and max renderbuffer size in terms of
109 * max texture size (note: max tex RECT size = max tex 2D size).
110 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
111 */
112 c->MaxViewportWidth =
113 c->MaxViewportHeight =
114 c->MaxRenderbufferSize = c->MaxTextureRectSize;
115
116 c->SubPixelBits =
117 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
118 c->ViewportSubpixelBits =
119 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
120
121 c->MaxDrawBuffers = c->MaxColorAttachments =
122 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
123 1, MAX_DRAW_BUFFERS);
124
125 c->MaxDualSourceDrawBuffers =
126 _clamp(screen->get_param(screen,
127 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
128 0, MAX_DRAW_BUFFERS);
129
130 c->MaxLineWidth =
131 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
132 c->MaxLineWidthAA =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
134
135 c->MinLineWidth = screen->get_paramf(screen, PIPE_CAPF_MIN_LINE_WIDTH);
136 c->MinLineWidthAA = screen->get_paramf(screen, PIPE_CAPF_MIN_LINE_WIDTH_AA);
137 c->LineWidthGranularity = screen->get_paramf(screen, PIPE_CAPF_LINE_WIDTH_GRANULARITY);
138
139 c->MaxPointSize =
140 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_SIZE));
141 c->MaxPointSizeAA =
142 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_SIZE_AA));
143
144 c->MinPointSize = MAX2(screen->get_paramf(screen, PIPE_CAPF_MIN_POINT_SIZE), 0.01);
145 c->MinPointSizeAA = MAX2(screen->get_paramf(screen, PIPE_CAPF_MIN_POINT_SIZE_AA), 0.01);
146 c->PointSizeGranularity = screen->get_paramf(screen, PIPE_CAPF_POINT_SIZE_GRANULARITY);
147
148 c->MaxTextureMaxAnisotropy =
149 _maxf(2.0f,
150 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
151
152 c->MaxTextureLodBias =
153 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
154
155 c->QuadsFollowProvokingVertexConvention =
156 screen->get_param(screen,
157 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
158
159 c->MaxUniformBlockSize =
160 screen->get_param(screen, PIPE_CAP_MAX_CONSTANT_BUFFER_SIZE_UINT);
161
162 if (c->MaxUniformBlockSize < 16384) {
163 can_ubo = false;
164 }
165
166 /* Round down to a multiple of 4 to make piglit happy. Bytes are not
167 * addressible by UBOs anyway.
168 */
169 c->MaxUniformBlockSize &= ~3;
170
171 c->HasFBFetch = screen->get_param(screen, PIPE_CAP_FBFETCH);
172
173 c->SupportsReadingOutputs = screen->get_param(screen, PIPE_CAP_SHADER_CAN_READ_OUTPUTS);
174
175 c->CombinedClipCullDistanceArrays = !screen->get_param(screen, PIPE_CAP_CULL_DISTANCE_NOCOMBINE);
176
177 c->PointSizeFixed = screen->get_param(screen, PIPE_CAP_POINT_SIZE_FIXED);
178
179 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
180 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
181 struct gl_shader_compiler_options *options =
182 &c->ShaderCompilerOptions[stage];
183 struct gl_program_constants *pc = &c->Program[stage];
184
185 if (screen->get_compiler_options)
186 options->NirOptions = screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
187
188 if (!options->NirOptions) {
189 options->NirOptions =
190 nir_to_tgsi_get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
191 }
192
193 if (sh == PIPE_SHADER_COMPUTE) {
194 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
195 continue;
196 }
197
198 pc->MaxTextureImageUnits =
199 _min(screen->get_shader_param(screen, sh,
200 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
201 MAX_TEXTURE_IMAGE_UNITS);
202
203 pc->MaxInstructions =
204 pc->MaxNativeInstructions =
205 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
206 pc->MaxAluInstructions =
207 pc->MaxNativeAluInstructions =
208 screen->get_shader_param(screen, sh,
209 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
210 pc->MaxTexInstructions =
211 pc->MaxNativeTexInstructions =
212 screen->get_shader_param(screen, sh,
213 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
214 pc->MaxTexIndirections =
215 pc->MaxNativeTexIndirections =
216 screen->get_shader_param(screen, sh,
217 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
218 pc->MaxAttribs =
219 pc->MaxNativeAttribs =
220 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
221 pc->MaxTemps =
222 pc->MaxNativeTemps =
223 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
224 pc->MaxAddressRegs =
225 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
226
227 pc->MaxUniformComponents =
228 screen->get_shader_param(screen, sh,
229 PIPE_SHADER_CAP_MAX_CONST_BUFFER0_SIZE) / 4;
230
231 /* reserve space in the default-uniform for lowered state */
232 if (sh == PIPE_SHADER_VERTEX ||
233 sh == PIPE_SHADER_TESS_EVAL ||
234 sh == PIPE_SHADER_GEOMETRY) {
235
236 if (!screen->get_param(screen, PIPE_CAP_CLIP_PLANES))
237 pc->MaxUniformComponents -= 4 * MAX_CLIP_PLANES;
238
239 if (!screen->get_param(screen, PIPE_CAP_POINT_SIZE_FIXED))
240 pc->MaxUniformComponents -= 4;
241 } else if (sh == PIPE_SHADER_FRAGMENT) {
242 if (!screen->get_param(screen, PIPE_CAP_ALPHA_TEST))
243 pc->MaxUniformComponents -= 4;
244 }
245
246
247 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
248 MAX_UNIFORMS * 4);
249
250 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
251 * This gives us a limit of 4096 values - but we may need to generate
252 * internal values in addition to what the source program uses. So, we
253 * drop the limit one step lower, to 2048, to be safe.
254 */
255 pc->MaxParameters =
256 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
257 pc->MaxInputComponents =
258 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
259 pc->MaxOutputComponents =
260 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
261
262
263 pc->MaxUniformBlocks =
264 screen->get_shader_param(screen, sh,
265 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
266 if (pc->MaxUniformBlocks)
267 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
268 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
269
270 pc->MaxCombinedUniformComponents =
271 pc->MaxUniformComponents +
272 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
273
274 pc->MaxShaderStorageBlocks =
275 screen->get_shader_param(screen, sh,
276 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
277
278 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
279 if (temp) {
280 /*
281 * for separate atomic counters get the actual hw limits
282 * per stage on atomic counters and buffers
283 */
284 pc->MaxAtomicCounters = temp;
285 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
286 } else if (pc->MaxShaderStorageBlocks) {
287 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
288 /*
289 * without separate atomic counters, reserve half of the available
290 * SSBOs for atomic buffers, and the other half for normal SSBOs.
291 */
292 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
293 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
294 }
295 pc->MaxImageUniforms =
296 _min(screen->get_shader_param(screen, sh,
297 PIPE_SHADER_CAP_MAX_SHADER_IMAGES),
298 MAX_IMAGE_UNIFORMS);
299
300 /* Gallium doesn't really care about local vs. env parameters so use the
301 * same limits.
302 */
303 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
304 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
305
306 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
307 pc->LowInt.RangeMin = 31;
308 pc->LowInt.RangeMax = 30;
309 pc->LowInt.Precision = 0;
310 pc->MediumInt = pc->HighInt = pc->LowInt;
311
312 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INT16)) {
313 pc->LowInt.RangeMin = 15;
314 pc->LowInt.RangeMax = 14;
315 pc->MediumInt = pc->LowInt;
316 }
317 }
318
319 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16)) {
320 pc->LowFloat.RangeMin = 15;
321 pc->LowFloat.RangeMax = 15;
322 pc->LowFloat.Precision = 10;
323 pc->MediumFloat = pc->LowFloat;
324 }
325
326 /* TODO: make these more fine-grained if anyone needs it */
327 options->MaxIfDepth =
328 screen->get_shader_param(screen, sh,
329 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
330
331 options->EmitNoMainReturn =
332 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
333
334 options->EmitNoCont =
335 !screen->get_shader_param(screen, sh,
336 PIPE_SHADER_CAP_CONT_SUPPORTED);
337
338 options->EmitNoIndirectInput =
339 !screen->get_shader_param(screen, sh,
340 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
341 options->EmitNoIndirectOutput =
342 !screen->get_shader_param(screen, sh,
343 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
344 options->EmitNoIndirectTemp =
345 !screen->get_shader_param(screen, sh,
346 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
347 options->EmitNoIndirectUniform =
348 !screen->get_shader_param(screen, sh,
349 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
350
351 if (pc->MaxNativeInstructions &&
352 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
353 can_ubo = false;
354 }
355
356 if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
357 options->LowerCombinedClipCullDistance = true;
358
359 if (sh == PIPE_SHADER_VERTEX || sh == PIPE_SHADER_GEOMETRY) {
360 if (screen->get_param(screen, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED))
361 options->LowerBuiltinVariablesXfb |= VARYING_BIT_POS;
362 if (screen->get_param(screen, PIPE_CAP_PSIZ_CLAMPED))
363 options->LowerBuiltinVariablesXfb |= VARYING_BIT_PSIZ;
364 }
365
366 options->LowerPrecisionFloat16 =
367 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16);
368 options->LowerPrecisionDerivatives =
369 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16_DERIVATIVES);
370 options->LowerPrecisionInt16 =
371 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INT16);
372 options->LowerPrecisionConstants =
373 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_GLSL_16BIT_CONSTS);
374 options->LowerPrecisionFloat16Uniforms =
375 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16_CONST_BUFFERS);
376 }
377
378 c->MaxUserAssignableUniformLocations =
379 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
380 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
381 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
382 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
383 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
384
385 c->GLSLLowerConstArrays =
386 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
387 c->GLSLTessLevelsAsInputs =
388 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
389 c->PrimitiveRestartForPatches = false;
390
391 c->MaxCombinedTextureImageUnits =
392 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
393 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
394 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
395 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
396 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
397 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
398 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
399
400 /* This depends on program constants. */
401 c->MaxTextureCoordUnits
402 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
403 MAX_TEXTURE_COORD_UNITS);
404
405 c->MaxTextureUnits =
406 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
407 c->MaxTextureCoordUnits);
408
409 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
410 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
411
412 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
413 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
414 c->MaxGeometryOutputVertices =
415 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
416 c->MaxGeometryTotalOutputComponents =
417 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
418 c->MaxGeometryShaderInvocations =
419 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
420 c->MaxTessPatchComponents =
421 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
422 MAX_VARYING) * 4;
423
424 c->MinProgramTexelOffset =
425 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
426 c->MaxProgramTexelOffset =
427 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
428
429 c->MaxProgramTextureGatherComponents =
430 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
431 c->MinProgramTextureGatherOffset =
432 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
433 c->MaxProgramTextureGatherOffset =
434 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
435
436 c->MaxTransformFeedbackBuffers =
437 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
438 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
439 MAX_FEEDBACK_BUFFERS);
440 c->MaxTransformFeedbackSeparateComponents =
441 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
442 c->MaxTransformFeedbackInterleavedComponents =
443 screen->get_param(screen,
444 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
445 c->MaxVertexStreams =
446 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
447
448 /* The vertex stream must fit into pipe_stream_output_info::stream */
449 assert(c->MaxVertexStreams <= 4);
450
451 c->MaxVertexAttribStride
452 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
453
454 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
455 * is only 16 bits.
456 */
457 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
458 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
459
460 c->GLSLSkipStrictMaxUniformLimitCheck =
461 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
462
463 c->UniformBufferOffsetAlignment =
464 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
465
466 if (can_ubo) {
467 extensions->ARB_uniform_buffer_object = GL_TRUE;
468 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
469 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
470 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
471 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
472 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
473 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
474 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
475 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
476 }
477
478 c->GLSLFragCoordIsSysVal =
479 screen->get_param(screen, PIPE_CAP_FS_POSITION_IS_SYSVAL);
480 c->GLSLPointCoordIsSysVal =
481 screen->get_param(screen, PIPE_CAP_FS_POINT_IS_SYSVAL);
482 c->GLSLFrontFacingIsSysVal =
483 screen->get_param(screen, PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL);
484
485 /* GL_ARB_get_program_binary */
486 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
487 c->NumProgramBinaryFormats = 1;
488 /* GL_ARB_gl_spirv */
489 if (screen->get_param(screen, PIPE_CAP_GL_SPIRV) &&
490 (api == API_OPENGL_CORE || api == API_OPENGL_COMPAT))
491 c->NumShaderBinaryFormats = 1;
492
493 c->MaxAtomicBufferBindings =
494 MAX2(c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers,
495 c->Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers);
496 c->MaxAtomicBufferSize = ATOMIC_COUNTER_SIZE *
497 MAX2(c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters,
498 c->Program[MESA_SHADER_COMPUTE].MaxAtomicCounters);
499
500 c->MaxCombinedAtomicBuffers =
501 MIN2(screen->get_param(screen,
502 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
503 MAX_COMBINED_ATOMIC_BUFFERS);
504 if (!c->MaxCombinedAtomicBuffers) {
505 c->MaxCombinedAtomicBuffers = MAX2(
506 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
507 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
508 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
509 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
510 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers,
511 c->Program[MESA_SHADER_COMPUTE].MaxAtomicBuffers);
512 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
513 }
514
515 c->MaxCombinedAtomicCounters =
516 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
517 if (!c->MaxCombinedAtomicCounters)
518 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
519
520 if (c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers) {
521 extensions->ARB_shader_atomic_counters = GL_TRUE;
522 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
523 }
524
525 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
526 c->ShaderStorageBufferOffsetAlignment =
527 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
528 if (c->ShaderStorageBufferOffsetAlignment) {
529 c->MaxCombinedShaderStorageBlocks =
530 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
531 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
532 if (!c->MaxCombinedShaderStorageBlocks) {
533 c->MaxCombinedShaderStorageBlocks = MAX2(
534 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
535 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
536 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
537 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
538 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks,
539 c->Program[MESA_SHADER_COMPUTE].MaxShaderStorageBlocks);
540 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
541 }
542 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
543
544 c->MaxCombinedShaderOutputResources +=
545 c->MaxCombinedShaderStorageBlocks;
546 c->MaxShaderStorageBlockSize =
547 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE_UINT);
548 if (c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks)
549 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
550 }
551
552 c->MaxCombinedImageUniforms =
553 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
554 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
555 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
556 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
557 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
558 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
559 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
560 c->MaxImageUnits = MAX_IMAGE_UNITS;
561 if (c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
562 screen->get_param(screen, PIPE_CAP_IMAGE_STORE_FORMATTED)) {
563 extensions->ARB_shader_image_load_store = GL_TRUE;
564 extensions->ARB_shader_image_size = GL_TRUE;
565 }
566
567 /* ARB_framebuffer_no_attachments */
568 c->MaxFramebufferWidth = c->MaxViewportWidth;
569 c->MaxFramebufferHeight = c->MaxViewportHeight;
570 /* NOTE: we cheat here a little by assuming that
571 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
572 * number of layers as we need, although we technically
573 * could have more the generality is not really useful
574 * in practicality.
575 */
576 c->MaxFramebufferLayers =
577 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
578
579 c->MaxWindowRectangles =
580 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
581
582 c->SparseBufferPageSize =
583 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
584
585 c->AllowMappedBuffersDuringExecution =
586 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
587
588 c->UseSTD430AsDefaultPacking =
589 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
590
591 c->MaxSubpixelPrecisionBiasBits =
592 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
593
594 c->ConservativeRasterDilateRange[0] =
595 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
596 c->ConservativeRasterDilateRange[1] =
597 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
598 c->ConservativeRasterDilateGranularity =
599 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
600
601 /* limit the max combined shader output resources to a driver limit */
602 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
603 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
604 c->MaxCombinedShaderOutputResources = temp;
605
606 c->VertexBufferOffsetIsInt32 =
607 screen->get_param(screen, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET);
608
609 c->UseVAOFastPath =
610 screen->get_param(screen, PIPE_CAP_ALLOW_DYNAMIC_VAO_FASTPATH);
611
612 c->glBeginEndBufferSize =
613 screen->get_param(screen, PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE);
614
615 c->MaxSparseTextureSize =
616 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_TEXTURE_SIZE);
617 c->MaxSparse3DTextureSize =
618 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_3D_TEXTURE_SIZE);
619 c->MaxSparseArrayTextureLayers =
620 screen->get_param(screen, PIPE_CAP_MAX_SPARSE_ARRAY_TEXTURE_LAYERS);
621 c->SparseTextureFullArrayCubeMipmaps =
622 screen->get_param(screen, PIPE_CAP_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS);
623
624 c->HardwareAcceleratedSelect =
625 screen->get_param(screen, PIPE_CAP_HARDWARE_GL_SELECT);
626
627 c->AllowGLThreadBufferSubDataOpt =
628 screen->get_param(screen, PIPE_CAP_ALLOW_GLTHREAD_BUFFER_SUBDATA_OPT);
629
630 c->HasDrawVertexState =
631 screen->get_param(screen, PIPE_CAP_DRAW_VERTEX_STATE);
632 }
633
634
635 /**
636 * Given a member \c x of struct gl_extensions, return offset of
637 * \c x in bytes.
638 */
639 #define o(x) offsetof(struct gl_extensions, x)
640
641
642 struct st_extension_cap_mapping {
643 int extension_offset;
644 int cap;
645 };
646
647 struct st_extension_format_mapping {
648 int extension_offset[2];
649 enum pipe_format format[32];
650
651 /* If TRUE, at least one format must be supported for the extensions to be
652 * advertised. If FALSE, all the formats must be supported. */
653 GLboolean need_at_least_one;
654 };
655
656 /**
657 * Enable extensions if certain pipe formats are supported by the driver.
658 * What extensions will be enabled and what formats must be supported is
659 * described by the array of st_extension_format_mapping.
660 *
661 * target and bind_flags are passed to is_format_supported.
662 */
663 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)664 init_format_extensions(struct pipe_screen *screen,
665 struct gl_extensions *extensions,
666 const struct st_extension_format_mapping *mapping,
667 unsigned num_mappings,
668 enum pipe_texture_target target,
669 unsigned bind_flags)
670 {
671 GLboolean *extension_table = (GLboolean *) extensions;
672 unsigned i;
673 int j;
674 int num_formats = ARRAY_SIZE(mapping->format);
675 int num_ext = ARRAY_SIZE(mapping->extension_offset);
676
677 for (i = 0; i < num_mappings; i++) {
678 int num_supported = 0;
679
680 /* Examine each format in the list. */
681 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
682 if (screen->is_format_supported(screen, mapping[i].format[j],
683 target, 0, 0, bind_flags)) {
684 num_supported++;
685 }
686 }
687
688 if (!num_supported ||
689 (!mapping[i].need_at_least_one && num_supported != j)) {
690 continue;
691 }
692
693 /* Enable all extensions in the list. */
694 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
695 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
696 }
697 }
698
699
700 /**
701 * Given a list of formats and bind flags, return the maximum number
702 * of samples supported by any of those formats.
703 */
704 static unsigned
get_max_samples_for_formats(struct pipe_screen * screen,unsigned num_formats,const enum pipe_format * formats,unsigned max_samples,unsigned bind)705 get_max_samples_for_formats(struct pipe_screen *screen,
706 unsigned num_formats,
707 const enum pipe_format *formats,
708 unsigned max_samples,
709 unsigned bind)
710 {
711 unsigned i, f;
712
713 for (i = max_samples; i > 0; --i) {
714 for (f = 0; f < num_formats; f++) {
715 if (screen->is_format_supported(screen, formats[f],
716 PIPE_TEXTURE_2D, i, i, bind)) {
717 return i;
718 }
719 }
720 }
721 return 0;
722 }
723
724 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)725 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
726 unsigned num_formats,
727 const enum pipe_format *formats,
728 unsigned max_samples,
729 unsigned num_storage_samples,
730 unsigned bind)
731 {
732 unsigned i, f;
733
734 for (i = max_samples; i > 0; --i) {
735 for (f = 0; f < num_formats; f++) {
736 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
737 i, num_storage_samples, bind)) {
738 return i;
739 }
740 }
741 }
742 return 0;
743 }
744
745 /**
746 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
747 * which GL extensions are supported.
748 * Quite a few extensions are always supported because they are standard
749 * features or can be built on top of other gallium features.
750 * Some fine tuning may still be needed.
751 */
st_init_extensions(struct pipe_screen * screen,struct gl_constants * consts,struct gl_extensions * extensions,struct st_config_options * options,gl_api api)752 void st_init_extensions(struct pipe_screen *screen,
753 struct gl_constants *consts,
754 struct gl_extensions *extensions,
755 struct st_config_options *options,
756 gl_api api)
757 {
758 unsigned i;
759 GLboolean *extension_table = (GLboolean *) extensions;
760
761 static const struct st_extension_cap_mapping cap_mapping[] = {
762 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
763 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
764 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
765 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
766 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
767 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
768 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
769 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
770 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
771 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
772 { o(ARB_derivative_control), PIPE_CAP_FS_FINE_DERIVATIVE },
773 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
774 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
775 { o(ARB_draw_instanced), PIPE_CAP_VS_INSTANCEID },
776 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
777 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
778 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
779 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
780 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
781 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
782 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
783 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
784 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
785 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
786 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
787 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
788 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
789 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
790 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
791 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
792 { o(ARB_shader_ballot), PIPE_CAP_SHADER_BALLOT },
793 { o(ARB_shader_clock), PIPE_CAP_SHADER_CLOCK },
794 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
795 { o(ARB_shader_group_vote), PIPE_CAP_SHADER_GROUP_VOTE },
796 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
797 { o(EXT_shader_image_load_store), PIPE_CAP_IMAGE_ATOMIC_INC_WRAP },
798 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
799 { o(ARB_shader_texture_image_samples), PIPE_CAP_TEXTURE_QUERY_SAMPLES },
800 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
801 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
802 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
803 { o(ARB_sparse_texture), PIPE_CAP_MAX_SPARSE_TEXTURE_SIZE },
804 { o(ARB_sparse_texture2), PIPE_CAP_QUERY_SPARSE_TEXTURE_RESIDENCY },
805 { o(ARB_sparse_texture_clamp), PIPE_CAP_CLAMP_SPARSE_TEXTURE_LOD },
806 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
807 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
808 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
809 { o(ARB_texture_filter_minmax), PIPE_CAP_SAMPLER_REDUCTION_MINMAX_ARB },
810 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
811 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
812 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
813 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
814 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
815 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
816 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
817 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
818 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
819 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
820 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
821
822 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
823 { o(EXT_demote_to_helper_invocation), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION },
824 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
825 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
826 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
827 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
828 #ifndef _WIN32
829 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
830 #else
831 { o(EXT_memory_object_win32), PIPE_CAP_MEMOBJ },
832 #endif
833 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
834 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
835 #ifndef _WIN32
836 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
837 #else
838 { o(EXT_semaphore_win32), PIPE_CAP_FENCE_SIGNAL },
839 #endif
840 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
841 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
842 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
843 { o(EXT_texture_filter_minmax), PIPE_CAP_SAMPLER_REDUCTION_MINMAX },
844 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
845 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
846 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
847 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
848 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
849
850 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
851 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
852 { o(AMD_gpu_shader_half_float), PIPE_CAP_FP16 },
853 { o(AMD_performance_monitor), PIPE_CAP_PERFORMANCE_MONITOR },
854 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
855 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
856 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
857 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
858 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
859 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
860 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
861 { o(NV_alpha_to_coverage_dither_control), PIPE_CAP_ALPHA_TO_COVERAGE_DITHER_CONTROL },
862 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
863 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
864 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
865 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
866 { o(NV_shader_atomic_float), PIPE_CAP_IMAGE_ATOMIC_FLOAT_ADD },
867 { o(NV_shader_atomic_int64), PIPE_CAP_SHADER_ATOMIC_INT64 },
868 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
869 { o(NV_viewport_array2), PIPE_CAP_VIEWPORT_MASK },
870 { o(NV_viewport_swizzle), PIPE_CAP_VIEWPORT_SWIZZLE },
871 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
872
873 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
874 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
875 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
876 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
877 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP },
878 { o(ARM_shader_framebuffer_fetch_depth_stencil), PIPE_CAP_FBFETCH_ZS },
879 { o(MESA_texture_const_bandwidth), PIPE_CAP_HAS_CONST_BW },
880 };
881
882 /* Required: render target and sampler support */
883 static const struct st_extension_format_mapping rendertarget_mapping[] = {
884 { { o(ARB_texture_rgb10_a2ui) },
885 { PIPE_FORMAT_R10G10B10A2_UINT,
886 PIPE_FORMAT_B10G10R10A2_UINT },
887 GL_TRUE }, /* at least one format must be supported */
888
889 { { o(EXT_sRGB) },
890 { PIPE_FORMAT_A8B8G8R8_SRGB,
891 PIPE_FORMAT_B8G8R8A8_SRGB,
892 PIPE_FORMAT_R8G8B8A8_SRGB },
893 GL_TRUE }, /* at least one format must be supported */
894
895 { { o(EXT_packed_float) },
896 { PIPE_FORMAT_R11G11B10_FLOAT } },
897
898 { { o(EXT_texture_integer) },
899 { PIPE_FORMAT_R32G32B32A32_UINT,
900 PIPE_FORMAT_R32G32B32A32_SINT } },
901
902 { { o(ARB_texture_rg) },
903 { PIPE_FORMAT_R8_UNORM,
904 PIPE_FORMAT_R8G8_UNORM } },
905
906 { { o(EXT_texture_norm16) },
907 { PIPE_FORMAT_R16_UNORM,
908 PIPE_FORMAT_R16G16_UNORM,
909 PIPE_FORMAT_R16G16B16A16_UNORM } },
910
911 { { o(EXT_render_snorm) },
912 { PIPE_FORMAT_R8_SNORM,
913 PIPE_FORMAT_R8G8_SNORM,
914 PIPE_FORMAT_R8G8B8A8_SNORM,
915 PIPE_FORMAT_R16_SNORM,
916 PIPE_FORMAT_R16G16_SNORM,
917 PIPE_FORMAT_R16G16B16A16_SNORM } },
918
919 { { o(EXT_color_buffer_half_float) },
920 { PIPE_FORMAT_R16_FLOAT,
921 PIPE_FORMAT_R16G16_FLOAT,
922 PIPE_FORMAT_R16G16B16A16_FLOAT } },
923
924 { { o(EXT_color_buffer_float) },
925 { PIPE_FORMAT_R16_FLOAT,
926 PIPE_FORMAT_R16G16_FLOAT,
927 PIPE_FORMAT_R16G16B16A16_FLOAT,
928 PIPE_FORMAT_R32_FLOAT,
929 PIPE_FORMAT_R32G32_FLOAT,
930 PIPE_FORMAT_R32G32B32A32_FLOAT } },
931 };
932
933 /* Required: render target, sampler, and blending */
934 static const struct st_extension_format_mapping rt_blendable[] = {
935 { { o(EXT_float_blend) },
936 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
937 };
938
939 /* Required: depth stencil and sampler support */
940 static const struct st_extension_format_mapping depthstencil_mapping[] = {
941 { { o(ARB_depth_buffer_float) },
942 { PIPE_FORMAT_Z32_FLOAT,
943 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
944 };
945
946 /* Required: sampler support */
947 static const struct st_extension_format_mapping texture_mapping[] = {
948 { { o(OES_texture_float) },
949 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
950
951 { { o(OES_texture_half_float) },
952 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
953
954 { { o(ARB_texture_compression_rgtc) },
955 { PIPE_FORMAT_RGTC1_UNORM,
956 PIPE_FORMAT_RGTC1_SNORM,
957 PIPE_FORMAT_RGTC2_UNORM,
958 PIPE_FORMAT_RGTC2_SNORM } },
959
960 /* RGTC software fallback support. */
961 { { o(ARB_texture_compression_rgtc) },
962 { PIPE_FORMAT_R8_UNORM,
963 PIPE_FORMAT_R8_SNORM,
964 PIPE_FORMAT_R8G8_UNORM,
965 PIPE_FORMAT_R8G8_SNORM } },
966
967 { { o(EXT_texture_compression_latc) },
968 { PIPE_FORMAT_LATC1_UNORM,
969 PIPE_FORMAT_LATC1_SNORM,
970 PIPE_FORMAT_LATC2_UNORM,
971 PIPE_FORMAT_LATC2_SNORM } },
972
973 /* LATC software fallback support. */
974 { { o(EXT_texture_compression_latc) },
975 { PIPE_FORMAT_L8_UNORM,
976 PIPE_FORMAT_L8_SNORM,
977 PIPE_FORMAT_L8A8_UNORM,
978 PIPE_FORMAT_L8A8_SNORM } },
979
980 { { o(EXT_texture_compression_s3tc),
981 o(ANGLE_texture_compression_dxt) },
982 { PIPE_FORMAT_DXT1_RGB,
983 PIPE_FORMAT_DXT1_RGBA,
984 PIPE_FORMAT_DXT3_RGBA,
985 PIPE_FORMAT_DXT5_RGBA } },
986
987 /* S3TC software fallback support. */
988 { { o(EXT_texture_compression_s3tc),
989 o(ANGLE_texture_compression_dxt) },
990 { PIPE_FORMAT_R8G8B8A8_UNORM } },
991
992 { { o(EXT_texture_compression_s3tc_srgb) },
993 { PIPE_FORMAT_DXT1_SRGB,
994 PIPE_FORMAT_DXT1_SRGBA,
995 PIPE_FORMAT_DXT3_SRGBA,
996 PIPE_FORMAT_DXT5_SRGBA } },
997
998 /* S3TC SRGB software fallback support. */
999 { { o(EXT_texture_compression_s3tc_srgb) },
1000 { PIPE_FORMAT_R8G8B8A8_SRGB } },
1001
1002 { { o(ARB_texture_compression_bptc) },
1003 { PIPE_FORMAT_BPTC_RGBA_UNORM,
1004 PIPE_FORMAT_BPTC_SRGBA,
1005 PIPE_FORMAT_BPTC_RGB_FLOAT,
1006 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
1007
1008 /* BPTC software fallback support. */
1009 { { o(ARB_texture_compression_bptc) },
1010 { PIPE_FORMAT_R8G8B8A8_UNORM,
1011 PIPE_FORMAT_R8G8B8A8_SRGB,
1012 PIPE_FORMAT_R16G16B16X16_FLOAT } },
1013
1014 { { o(TDFX_texture_compression_FXT1) },
1015 { PIPE_FORMAT_FXT1_RGB,
1016 PIPE_FORMAT_FXT1_RGBA } },
1017
1018 { { o(KHR_texture_compression_astc_ldr),
1019 o(KHR_texture_compression_astc_sliced_3d) },
1020 { PIPE_FORMAT_ASTC_4x4,
1021 PIPE_FORMAT_ASTC_5x4,
1022 PIPE_FORMAT_ASTC_5x5,
1023 PIPE_FORMAT_ASTC_6x5,
1024 PIPE_FORMAT_ASTC_6x6,
1025 PIPE_FORMAT_ASTC_8x5,
1026 PIPE_FORMAT_ASTC_8x6,
1027 PIPE_FORMAT_ASTC_8x8,
1028 PIPE_FORMAT_ASTC_10x5,
1029 PIPE_FORMAT_ASTC_10x6,
1030 PIPE_FORMAT_ASTC_10x8,
1031 PIPE_FORMAT_ASTC_10x10,
1032 PIPE_FORMAT_ASTC_12x10,
1033 PIPE_FORMAT_ASTC_12x12,
1034 PIPE_FORMAT_ASTC_4x4_SRGB,
1035 PIPE_FORMAT_ASTC_5x4_SRGB,
1036 PIPE_FORMAT_ASTC_5x5_SRGB,
1037 PIPE_FORMAT_ASTC_6x5_SRGB,
1038 PIPE_FORMAT_ASTC_6x6_SRGB,
1039 PIPE_FORMAT_ASTC_8x5_SRGB,
1040 PIPE_FORMAT_ASTC_8x6_SRGB,
1041 PIPE_FORMAT_ASTC_8x8_SRGB,
1042 PIPE_FORMAT_ASTC_10x5_SRGB,
1043 PIPE_FORMAT_ASTC_10x6_SRGB,
1044 PIPE_FORMAT_ASTC_10x8_SRGB,
1045 PIPE_FORMAT_ASTC_10x10_SRGB,
1046 PIPE_FORMAT_ASTC_12x10_SRGB,
1047 PIPE_FORMAT_ASTC_12x12_SRGB } },
1048
1049 /* ASTC software fallback support. */
1050 { { o(KHR_texture_compression_astc_ldr),
1051 o(KHR_texture_compression_astc_sliced_3d) },
1052 { PIPE_FORMAT_R8G8B8A8_UNORM,
1053 PIPE_FORMAT_R8G8B8A8_SRGB } },
1054
1055 { { o(EXT_texture_shared_exponent) },
1056 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
1057
1058 { { o(EXT_texture_snorm) },
1059 { PIPE_FORMAT_R8G8B8A8_SNORM } },
1060
1061 { { o(EXT_texture_sRGB),
1062 o(EXT_texture_sRGB_decode) },
1063 { PIPE_FORMAT_A8B8G8R8_SRGB,
1064 PIPE_FORMAT_B8G8R8A8_SRGB,
1065 PIPE_FORMAT_A8R8G8B8_SRGB,
1066 PIPE_FORMAT_R8G8B8A8_SRGB},
1067 GL_TRUE }, /* at least one format must be supported */
1068
1069 { { o(EXT_texture_sRGB_R8) },
1070 { PIPE_FORMAT_R8_SRGB }, },
1071
1072 { { o(EXT_texture_sRGB_RG8) },
1073 { PIPE_FORMAT_R8G8_SRGB }, },
1074
1075 { { o(EXT_texture_type_2_10_10_10_REV) },
1076 { PIPE_FORMAT_R10G10B10A2_UNORM,
1077 PIPE_FORMAT_B10G10R10A2_UNORM },
1078 GL_TRUE }, /* at least one format must be supported */
1079
1080 { { o(ATI_texture_compression_3dc) },
1081 { PIPE_FORMAT_LATC2_UNORM } },
1082
1083 { { o(ATI_texture_compression_3dc) },
1084 { PIPE_FORMAT_L8A8_UNORM } },
1085
1086 { { o(MESA_ycbcr_texture) },
1087 { PIPE_FORMAT_UYVY,
1088 PIPE_FORMAT_YUYV },
1089 GL_TRUE }, /* at least one format must be supported */
1090
1091 { { o(OES_compressed_ETC1_RGB8_texture) },
1092 { PIPE_FORMAT_ETC1_RGB8,
1093 PIPE_FORMAT_R8G8B8A8_UNORM },
1094 GL_TRUE }, /* at least one format must be supported */
1095
1096 { { o(ARB_stencil_texturing),
1097 o(ARB_texture_stencil8) },
1098 { PIPE_FORMAT_X24S8_UINT,
1099 PIPE_FORMAT_S8X24_UINT },
1100 GL_TRUE }, /* at least one format must be supported */
1101
1102 { { o(AMD_compressed_ATC_texture) },
1103 { PIPE_FORMAT_ATC_RGB,
1104 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
1105 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
1106 };
1107
1108 /* Required: vertex fetch support. */
1109 static const struct st_extension_format_mapping vertex_mapping[] = {
1110 { { o(EXT_vertex_array_bgra) },
1111 { PIPE_FORMAT_B8G8R8A8_UNORM } },
1112 { { o(ARB_vertex_type_2_10_10_10_rev) },
1113 { PIPE_FORMAT_R10G10B10A2_UNORM,
1114 PIPE_FORMAT_B10G10R10A2_UNORM,
1115 PIPE_FORMAT_R10G10B10A2_SNORM,
1116 PIPE_FORMAT_B10G10R10A2_SNORM,
1117 PIPE_FORMAT_R10G10B10A2_USCALED,
1118 PIPE_FORMAT_B10G10R10A2_USCALED,
1119 PIPE_FORMAT_R10G10B10A2_SSCALED,
1120 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1121 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1122 { PIPE_FORMAT_R11G11B10_FLOAT } },
1123 };
1124
1125 static const struct st_extension_format_mapping tbo_rgb32[] = {
1126 { {o(ARB_texture_buffer_object_rgb32) },
1127 { PIPE_FORMAT_R32G32B32_FLOAT,
1128 PIPE_FORMAT_R32G32B32_UINT,
1129 PIPE_FORMAT_R32G32B32_SINT,
1130 } },
1131 };
1132
1133 /* Expose the extensions which directly correspond to gallium caps. */
1134 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1135 if (screen->get_param(screen, cap_mapping[i].cap)) {
1136 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1137 }
1138 }
1139
1140 /* EXT implies ARB here */
1141 if (extensions->EXT_texture_filter_minmax)
1142 extensions->ARB_texture_filter_minmax = GL_TRUE;
1143
1144 /* Expose the extensions which directly correspond to gallium formats. */
1145 init_format_extensions(screen, extensions, rendertarget_mapping,
1146 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1147 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1148 init_format_extensions(screen, extensions, rt_blendable,
1149 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1150 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1151 PIPE_BIND_BLENDABLE);
1152 init_format_extensions(screen, extensions, depthstencil_mapping,
1153 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1154 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1155 init_format_extensions(screen, extensions, texture_mapping,
1156 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1157 PIPE_BIND_SAMPLER_VIEW);
1158 init_format_extensions(screen, extensions, vertex_mapping,
1159 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1160 PIPE_BIND_VERTEX_BUFFER);
1161
1162 /* Figure out GLSL support and set GLSLVersion to it. */
1163 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1164 consts->GLSLVersionCompat =
1165 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1166
1167 const unsigned ESSLVersion =
1168 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1169 const unsigned GLSLVersion =
1170 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1171 consts->GLSLVersion;
1172
1173 _mesa_override_glsl_version(consts);
1174
1175 if (options->force_glsl_version > 0 &&
1176 options->force_glsl_version <= GLSLVersion) {
1177 consts->ForceGLSLVersion = options->force_glsl_version;
1178 }
1179
1180 consts->ForceCompatShaders = options->force_compat_shaders;
1181
1182 consts->AllowExtraPPTokens = options->allow_extra_pp_tokens;
1183
1184 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1185 consts->AllowGLSLCompatShaders = options->allow_glsl_compat_shaders;
1186
1187 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1188
1189 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1190
1191 consts->dri_config_options_sha1 = options->config_options_sha1;
1192
1193 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1194
1195 consts->DoDCEBeforeClipCullAnalysis = options->do_dce_before_clip_cull_analysis;
1196
1197 consts->GLSLIgnoreWriteToReadonlyVar = options->glsl_ignore_write_to_readonly_var;
1198
1199 consts->ForceMapBufferSynchronized = options->force_gl_map_buffer_synchronized;
1200
1201 consts->PrimitiveRestartFixedIndex =
1202 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX);
1203
1204 /* Technically we are turning on the EXT_gpu_shader5 extension,
1205 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1206 * switches on EXT_gpu_shader5:
1207 */
1208 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1209 extensions->ARB_gpu_shader5 = GL_TRUE;
1210
1211 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1212 extensions->ARB_gpu_shader5 = GL_TRUE;
1213 if (GLSLVersion >= 410)
1214 extensions->ARB_shader_precision = GL_TRUE;
1215
1216 /* This extension needs full OpenGL 3.2, but we don't know if that's
1217 * supported at this point. Only check the GLSL version. */
1218 if (GLSLVersion >= 150 &&
1219 screen->get_param(screen, PIPE_CAP_VS_LAYER_VIEWPORT)) {
1220 extensions->AMD_vertex_shader_layer = GL_TRUE;
1221 }
1222
1223 if (GLSLVersion >= 140) {
1224 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1225 * we can always expose it if the driver can do 140. Supporting
1226 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1227 * pipe cap.
1228 */
1229 extensions->EXT_gpu_shader4 = GL_TRUE;
1230 extensions->EXT_texture_buffer_object = GL_TRUE;
1231
1232 if (consts->MaxTransformFeedbackBuffers &&
1233 screen->get_param(screen, PIPE_CAP_SHADER_ARRAY_COMPONENTS))
1234 extensions->ARB_enhanced_layouts = GL_TRUE;
1235 }
1236
1237 if (GLSLVersion >= 130) {
1238 consts->NativeIntegers = GL_TRUE;
1239 consts->MaxClipPlanes = 8;
1240
1241 uint32_t drv_clip_planes = screen->get_param(screen, PIPE_CAP_CLIP_PLANES);
1242 /* only override for > 1 - 0 if none, 1 is MAX, >2 overrides MAX */
1243 if (drv_clip_planes > 1)
1244 consts->MaxClipPlanes = drv_clip_planes;
1245
1246 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1247 extensions->ARB_conservative_depth = GL_TRUE;
1248 extensions->ARB_shading_language_packing = GL_TRUE;
1249 extensions->OES_depth_texture_cube_map = GL_TRUE;
1250 extensions->ARB_shading_language_420pack = GL_TRUE;
1251 extensions->ARB_texture_query_levels = GL_TRUE;
1252
1253 extensions->ARB_shader_bit_encoding = GL_TRUE;
1254
1255 extensions->EXT_shader_integer_mix = GL_TRUE;
1256 extensions->ARB_arrays_of_arrays = GL_TRUE;
1257 extensions->MESA_shader_integer_functions = GL_TRUE;
1258
1259 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1260 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1261 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1262 }
1263 } else {
1264 /* Optional integer support for GLSL 1.2. */
1265 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1266 PIPE_SHADER_CAP_INTEGERS) &&
1267 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1268 PIPE_SHADER_CAP_INTEGERS)) {
1269 consts->NativeIntegers = GL_TRUE;
1270
1271 extensions->EXT_shader_integer_mix = GL_TRUE;
1272 }
1273
1274 /* Integer textures make no sense before GLSL 1.30 */
1275 extensions->EXT_texture_integer = GL_FALSE;
1276 extensions->ARB_texture_rgb10_a2ui = GL_FALSE;
1277 }
1278
1279 if (options->glsl_zero_init) {
1280 consts->GLSLZeroInit = 1;
1281 } else {
1282 consts->GLSLZeroInit = screen->get_param(screen, PIPE_CAP_GLSL_ZERO_INIT);
1283 }
1284
1285 consts->ForceGLNamesReuse = options->force_gl_names_reuse;
1286
1287 consts->ForceIntegerTexNearest = options->force_integer_tex_nearest;
1288
1289 consts->VendorOverride = options->force_gl_vendor;
1290 consts->RendererOverride = options->force_gl_renderer;
1291
1292 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1293
1294 /* Below are the cases which cannot be moved into tables easily. */
1295
1296 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1297 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1298 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1299 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1300 extensions->ARB_tessellation_shader = GL_TRUE;
1301 }
1302
1303 /* OES_geometry_shader requires instancing */
1304 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1305 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1306 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1307 consts->MaxGeometryShaderInvocations >= 32) {
1308 extensions->OES_geometry_shader = GL_TRUE;
1309 }
1310
1311 /* Some hardware may not support indirect draws, but still wants ES
1312 * 3.1. This allows the extension to be enabled only in ES contexts to
1313 * avoid claiming hw support when there is none, and using a software
1314 * fallback for ES.
1315 */
1316 if (api == API_OPENGLES2 && ESSLVersion >= 310) {
1317 extensions->ARB_draw_indirect = GL_TRUE;
1318 }
1319
1320 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1321 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1322 */
1323 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1324 extensions->ARB_gpu_shader5;
1325
1326 /* Maximum sample count. */
1327 {
1328 static const enum pipe_format color_formats[] = {
1329 PIPE_FORMAT_R8G8B8A8_UNORM,
1330 PIPE_FORMAT_B8G8R8A8_UNORM,
1331 PIPE_FORMAT_A8R8G8B8_UNORM,
1332 PIPE_FORMAT_A8B8G8R8_UNORM,
1333 };
1334 static const enum pipe_format depth_formats[] = {
1335 PIPE_FORMAT_Z16_UNORM,
1336 PIPE_FORMAT_Z24X8_UNORM,
1337 PIPE_FORMAT_X8Z24_UNORM,
1338 PIPE_FORMAT_Z32_UNORM,
1339 PIPE_FORMAT_Z32_FLOAT
1340 };
1341 static const enum pipe_format int_formats[] = {
1342 PIPE_FORMAT_R8G8B8A8_SINT
1343 };
1344 static const enum pipe_format void_formats[] = {
1345 PIPE_FORMAT_NONE
1346 };
1347
1348 consts->MaxSamples =
1349 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1350 color_formats, 16,
1351 PIPE_BIND_RENDER_TARGET);
1352
1353 consts->MaxImageSamples =
1354 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1355 color_formats, 16,
1356 PIPE_BIND_SHADER_IMAGE);
1357
1358 consts->MaxColorTextureSamples =
1359 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1360 color_formats, consts->MaxSamples,
1361 PIPE_BIND_SAMPLER_VIEW);
1362
1363 consts->MaxDepthTextureSamples =
1364 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1365 depth_formats, consts->MaxSamples,
1366 PIPE_BIND_SAMPLER_VIEW);
1367
1368 consts->MaxIntegerSamples =
1369 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1370 int_formats, consts->MaxSamples,
1371 PIPE_BIND_SAMPLER_VIEW);
1372
1373 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1374 consts->MaxFramebufferSamples =
1375 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1376 void_formats, 32,
1377 PIPE_BIND_RENDER_TARGET);
1378
1379 if (extensions->AMD_framebuffer_multisample_advanced) {
1380 /* AMD_framebuffer_multisample_advanced */
1381 /* This can be greater than storage samples. */
1382 consts->MaxColorFramebufferSamples =
1383 get_max_samples_for_formats_advanced(screen,
1384 ARRAY_SIZE(color_formats),
1385 color_formats, 16,
1386 consts->MaxSamples,
1387 PIPE_BIND_RENDER_TARGET);
1388
1389 /* If the driver supports N color samples, it means it supports
1390 * N samples and N storage samples. N samples >= N storage
1391 * samples.
1392 */
1393 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1394 consts->MaxDepthStencilFramebufferSamples =
1395 consts->MaxDepthTextureSamples;
1396
1397 assert(consts->MaxColorFramebufferSamples >=
1398 consts->MaxDepthStencilFramebufferSamples);
1399 assert(consts->MaxDepthStencilFramebufferSamples >=
1400 consts->MaxColorFramebufferStorageSamples);
1401
1402 consts->NumSupportedMultisampleModes = 0;
1403
1404 unsigned depth_samples_supported = 0;
1405
1406 for (unsigned samples = 2;
1407 samples <= consts->MaxDepthStencilFramebufferSamples;
1408 samples++) {
1409 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1410 PIPE_TEXTURE_2D, samples, samples,
1411 PIPE_BIND_DEPTH_STENCIL))
1412 depth_samples_supported |= 1 << samples;
1413 }
1414
1415 for (unsigned samples = 2;
1416 samples <= consts->MaxColorFramebufferSamples;
1417 samples++) {
1418 for (unsigned depth_samples = 2;
1419 depth_samples <= samples; depth_samples++) {
1420 if (!(depth_samples_supported & (1 << depth_samples)))
1421 continue;
1422
1423 for (unsigned storage_samples = 2;
1424 storage_samples <= depth_samples; storage_samples++) {
1425 if (screen->is_format_supported(screen,
1426 PIPE_FORMAT_R8G8B8A8_UNORM,
1427 PIPE_TEXTURE_2D,
1428 samples,
1429 storage_samples,
1430 PIPE_BIND_RENDER_TARGET)) {
1431 unsigned i = consts->NumSupportedMultisampleModes;
1432
1433 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1434 consts->SupportedMultisampleModes[i].NumColorSamples =
1435 samples;
1436 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1437 storage_samples;
1438 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1439 depth_samples;
1440 consts->NumSupportedMultisampleModes++;
1441 }
1442 }
1443 }
1444 }
1445 }
1446 }
1447
1448 if (consts->MaxSamples >= 2) {
1449 /* Real MSAA support */
1450 extensions->EXT_framebuffer_multisample = GL_TRUE;
1451 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1452 }
1453 else if (consts->MaxSamples > 0 &&
1454 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1455 /* fake MSAA support */
1456 consts->FakeSWMSAA = GL_TRUE;
1457 extensions->EXT_framebuffer_multisample = GL_TRUE;
1458 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1459 extensions->ARB_texture_multisample = GL_TRUE;
1460 }
1461
1462 if (consts->MaxDualSourceDrawBuffers > 0 &&
1463 !options->disable_blend_func_extended)
1464 extensions->ARB_blend_func_extended = GL_TRUE;
1465
1466 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1467 extensions->ARB_timer_query) {
1468 extensions->EXT_timer_query = GL_TRUE;
1469 }
1470
1471 if (extensions->ARB_transform_feedback2 &&
1472 extensions->ARB_draw_instanced) {
1473 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1474 }
1475 if (options->force_glsl_extensions_warn)
1476 consts->ForceGLSLExtensionsWarn = 1;
1477
1478 if (options->disable_glsl_line_continuations)
1479 consts->DisableGLSLLineContinuations = 1;
1480
1481 if (options->disable_uniform_array_resize)
1482 consts->DisableUniformArrayResize = 1;
1483
1484 consts->AliasShaderExtension = options->alias_shader_extension;
1485
1486 if (options->allow_vertex_texture_bias)
1487 consts->AllowVertexTextureBias = GL_TRUE;
1488
1489 if (options->allow_glsl_extension_directive_midshader)
1490 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1491
1492 if (options->allow_glsl_120_subset_in_110)
1493 consts->AllowGLSL120SubsetIn110 = GL_TRUE;
1494
1495 if (options->allow_glsl_builtin_const_expression)
1496 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1497
1498 if (options->allow_glsl_relaxed_es)
1499 consts->AllowGLSLRelaxedES = GL_TRUE;
1500
1501 consts->MinMapBufferAlignment =
1502 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1503
1504 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1505 if (api == API_OPENGL_COMPAT &&
1506 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1507 extensions->ARB_texture_buffer_object = GL_FALSE;
1508
1509 if (extensions->ARB_texture_buffer_object) {
1510 consts->MaxTextureBufferSize =
1511 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_BUFFER_ELEMENTS_UINT);
1512 consts->TextureBufferOffsetAlignment =
1513 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1514
1515 if (consts->TextureBufferOffsetAlignment)
1516 extensions->ARB_texture_buffer_range = GL_TRUE;
1517
1518 init_format_extensions(screen, extensions, tbo_rgb32,
1519 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1520 PIPE_BIND_SAMPLER_VIEW);
1521 }
1522
1523 extensions->OES_texture_buffer =
1524 consts->Program[MESA_SHADER_COMPUTE].MaxImageUniforms &&
1525 extensions->ARB_texture_buffer_object &&
1526 extensions->ARB_texture_buffer_range &&
1527 extensions->ARB_texture_buffer_object_rgb32;
1528
1529 extensions->EXT_framebuffer_sRGB =
1530 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1531 extensions->EXT_sRGB;
1532
1533 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1534 * If the number of available texture indirections is very limited, then we
1535 * prefer to disable varying packing rather than run the risk of varying
1536 * packing preventing a shader from running.
1537 */
1538 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1539 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1540 /* We can't disable varying packing if transform feedback is available,
1541 * because transform feedback code assumes a packed varying layout.
1542 */
1543 if (!extensions->EXT_transform_feedback)
1544 consts->DisableVaryingPacking = GL_TRUE;
1545 }
1546
1547 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1548 consts->DisableTransformFeedbackPacking = GL_TRUE;
1549
1550 if (screen->get_param(screen, PIPE_CAP_PREFER_POT_ALIGNED_VARYINGS))
1551 consts->PreferPOTAlignedVaryings = GL_TRUE;
1552
1553 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1554 bool coherent_fb_fetch =
1555 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1556
1557 if (screen->get_param(screen, PIPE_CAP_BLEND_EQUATION_ADVANCED))
1558 extensions->KHR_blend_equation_advanced = true;
1559
1560 if (max_fb_fetch_rts > 0) {
1561 extensions->KHR_blend_equation_advanced = true;
1562 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1563
1564 if (max_fb_fetch_rts >=
1565 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1566 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1567 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1568 }
1569 }
1570
1571 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1572 if (consts->MaxViewports >= 16) {
1573 if (GLSLVersion >= 400) {
1574 consts->ViewportBounds.Min = -32768.0;
1575 consts->ViewportBounds.Max = 32767.0;
1576 } else {
1577 consts->ViewportBounds.Min = -16384.0;
1578 consts->ViewportBounds.Max = 16383.0;
1579 }
1580 extensions->ARB_viewport_array = GL_TRUE;
1581 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1582 if (extensions->AMD_vertex_shader_layer)
1583 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1584 }
1585
1586 if (extensions->AMD_vertex_shader_layer &&
1587 extensions->AMD_vertex_shader_viewport_index &&
1588 screen->get_param(screen, PIPE_CAP_TES_LAYER_VIEWPORT))
1589 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1590
1591 /* ARB_framebuffer_no_attachments */
1592 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1593 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1594 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1595 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1596 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1597
1598 /* GL_ARB_ES3_compatibility.
1599 * Check requirements for GLSL ES 3.00.
1600 */
1601 if (GLSLVersion >= 130 &&
1602 extensions->ARB_uniform_buffer_object &&
1603 (extensions->NV_primitive_restart ||
1604 consts->PrimitiveRestartFixedIndex) &&
1605 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1606 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1607 /* Requirements for ETC2 emulation. */
1608 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1609 PIPE_TEXTURE_2D, 0, 0,
1610 PIPE_BIND_SAMPLER_VIEW) &&
1611 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1612 PIPE_TEXTURE_2D, 0, 0,
1613 PIPE_BIND_SAMPLER_VIEW) &&
1614 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1615 PIPE_TEXTURE_2D, 0, 0,
1616 PIPE_BIND_SAMPLER_VIEW) &&
1617 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1618 PIPE_TEXTURE_2D, 0, 0,
1619 PIPE_BIND_SAMPLER_VIEW) &&
1620 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1621 PIPE_TEXTURE_2D, 0, 0,
1622 PIPE_BIND_SAMPLER_VIEW) &&
1623 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1624 PIPE_TEXTURE_2D, 0, 0,
1625 PIPE_BIND_SAMPLER_VIEW)) {
1626 extensions->ARB_ES3_compatibility = GL_TRUE;
1627 }
1628
1629 #ifdef HAVE_ST_VDPAU
1630 if (screen->get_video_param &&
1631 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1632 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1633 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1634 extensions->NV_vdpau_interop = GL_TRUE;
1635 }
1636 #endif
1637
1638 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1639 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1640 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1641 }
1642
1643 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1644 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1645 extensions->GREMEDY_string_marker = GL_TRUE;
1646
1647 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1648 uint64_t grid_size[3], block_size[3];
1649 uint64_t max_local_size, max_threads_per_block;
1650
1651 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1652 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1653 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1654 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1655 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1656 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1657 &max_threads_per_block);
1658 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1659 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1660 &max_local_size);
1661
1662 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1663 consts->MaxComputeSharedMemorySize = max_local_size;
1664
1665 for (i = 0; i < 3; i++) {
1666 /* There are tests that fail if we report more that INT_MAX - 1. */
1667 consts->MaxComputeWorkGroupCount[i] = MIN2(grid_size[i], INT_MAX - 1);
1668 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1669 }
1670
1671 extensions->ARB_compute_shader =
1672 max_threads_per_block >= 1024 &&
1673 extensions->ARB_shader_image_load_store &&
1674 extensions->ARB_shader_atomic_counters;
1675
1676 if (extensions->ARB_compute_shader) {
1677 uint64_t max_variable_threads_per_block = 0;
1678
1679 screen->get_compute_param(screen, PIPE_SHADER_IR_NIR,
1680 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1681 &max_variable_threads_per_block);
1682
1683 for (i = 0; i < 3; i++) {
1684 /* Clamp the values to avoid having a local work group size
1685 * greater than the maximum number of invocations.
1686 */
1687 consts->MaxComputeVariableGroupSize[i] =
1688 MIN2(consts->MaxComputeWorkGroupSize[i],
1689 max_variable_threads_per_block);
1690 }
1691 consts->MaxComputeVariableGroupInvocations =
1692 max_variable_threads_per_block;
1693
1694 extensions->ARB_compute_variable_group_size =
1695 max_variable_threads_per_block > 0;
1696 }
1697 }
1698
1699 extensions->ARB_texture_float =
1700 extensions->OES_texture_half_float &&
1701 extensions->OES_texture_float;
1702
1703 if (extensions->EXT_texture_filter_anisotropic &&
1704 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1705 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1706
1707 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1708
1709 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1710 * there's no clean way of telling whether we would support ES 3.1 from
1711 * here, so copy the condition from compute_version_es2 here. A lot of
1712 * these are redunant, but simpler to just have a (near-)exact copy here.
1713 */
1714 extensions->ARB_ES3_1_compatibility =
1715 consts->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
1716 extensions->ARB_ES3_compatibility &&
1717 extensions->ARB_arrays_of_arrays &&
1718 extensions->ARB_compute_shader &&
1719 extensions->ARB_draw_indirect &&
1720 extensions->ARB_explicit_uniform_location &&
1721 extensions->ARB_framebuffer_no_attachments &&
1722 extensions->ARB_shader_atomic_counters &&
1723 extensions->ARB_shader_image_load_store &&
1724 extensions->ARB_shader_image_size &&
1725 extensions->ARB_shader_storage_buffer_object &&
1726 extensions->ARB_shading_language_packing &&
1727 extensions->ARB_stencil_texturing &&
1728 extensions->ARB_texture_multisample &&
1729 extensions->ARB_gpu_shader5 &&
1730 extensions->EXT_shader_integer_mix;
1731
1732 extensions->OES_texture_cube_map_array =
1733 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1734 extensions->OES_geometry_shader &&
1735 extensions->ARB_texture_cube_map_array;
1736
1737 extensions->OES_viewport_array =
1738 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1739 extensions->OES_geometry_shader &&
1740 extensions->ARB_viewport_array;
1741
1742 extensions->OES_primitive_bounding_box =
1743 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1744
1745 consts->NoPrimitiveBoundingBoxOutput = true;
1746
1747 extensions->ANDROID_extension_pack_es31a =
1748 consts->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms &&
1749 extensions->KHR_texture_compression_astc_ldr &&
1750 extensions->KHR_blend_equation_advanced &&
1751 extensions->OES_sample_variables &&
1752 extensions->ARB_texture_stencil8 &&
1753 extensions->ARB_texture_multisample &&
1754 extensions->OES_copy_image &&
1755 extensions->ARB_draw_buffers_blend &&
1756 extensions->OES_geometry_shader &&
1757 extensions->ARB_gpu_shader5 &&
1758 extensions->OES_primitive_bounding_box &&
1759 extensions->ARB_tessellation_shader &&
1760 extensions->OES_texture_buffer &&
1761 extensions->OES_texture_cube_map_array &&
1762 extensions->EXT_texture_sRGB_decode;
1763
1764 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1765 * before overall versions are selected. Also it's actually a subset of ES
1766 * 3.2, since it doesn't require ASTC or advanced blending.
1767 */
1768 extensions->ARB_ES3_2_compatibility =
1769 extensions->ARB_ES3_1_compatibility &&
1770 extensions->KHR_robustness &&
1771 extensions->ARB_copy_image &&
1772 extensions->ARB_draw_buffers_blend &&
1773 extensions->ARB_draw_elements_base_vertex &&
1774 extensions->OES_geometry_shader &&
1775 extensions->ARB_gpu_shader5 &&
1776 extensions->ARB_sample_shading &&
1777 extensions->ARB_tessellation_shader &&
1778 extensions->OES_texture_buffer &&
1779 extensions->ARB_texture_cube_map_array &&
1780 extensions->ARB_texture_stencil8 &&
1781 extensions->ARB_texture_multisample;
1782
1783 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1784 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1785 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1786 float max_dilate;
1787 bool pre_snap_triangles, pre_snap_points_lines;
1788
1789 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1790
1791 pre_snap_triangles =
1792 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1793 pre_snap_points_lines =
1794 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1795
1796 extensions->NV_conservative_raster =
1797 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1798
1799 if (extensions->NV_conservative_raster) {
1800 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1801 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1802 extensions->NV_conservative_raster_pre_snap =
1803 pre_snap_triangles && pre_snap_points_lines;
1804 }
1805 }
1806
1807 if (extensions->ARB_gl_spirv) {
1808 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1809
1810 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1811 spirv_caps->demote_to_helper_invocation = extensions->EXT_demote_to_helper_invocation;
1812 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1813 spirv_caps->derivative_group = extensions->NV_compute_shader_derivatives;
1814 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1815 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1816 spirv_caps->image_ms_array = extensions->ARB_shader_image_load_store &&
1817 consts->MaxImageSamples > 1;
1818 spirv_caps->image_read_without_format = extensions->EXT_shader_image_load_formatted;
1819 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1820 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1821 spirv_caps->int64_atomics = extensions->NV_shader_atomic_int64;
1822 spirv_caps->post_depth_coverage = extensions->ARB_post_depth_coverage;
1823 spirv_caps->shader_clock = extensions->ARB_shader_clock;
1824 spirv_caps->shader_viewport_index_layer = extensions->ARB_shader_viewport_layer_array;
1825 spirv_caps->stencil_export = extensions->ARB_shader_stencil_export;
1826 spirv_caps->storage_image_ms = extensions->ARB_shader_image_load_store &&
1827 consts->MaxImageSamples > 1;
1828 spirv_caps->subgroup_ballot = extensions->ARB_shader_ballot;
1829 spirv_caps->subgroup_vote = extensions->ARB_shader_group_vote;
1830 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1831 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1832 spirv_caps->variable_pointers =
1833 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1834 spirv_caps->integer_functions2 = extensions->INTEL_shader_integer_functions2;
1835
1836 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1837 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1838 }
1839
1840 consts->AllowDrawOutOfOrder =
1841 api == API_OPENGL_COMPAT &&
1842 options->allow_draw_out_of_order &&
1843 screen->get_param(screen, PIPE_CAP_ALLOW_DRAW_OUT_OF_ORDER);
1844 consts->GLThreadNopCheckFramebufferStatus = options->glthread_nop_check_framebuffer_status;
1845
1846 const struct nir_shader_compiler_options *nir_options =
1847 consts->ShaderCompilerOptions[MESA_SHADER_FRAGMENT].NirOptions;
1848
1849 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_INTEGERS) &&
1850 extensions->ARB_stencil_texturing &&
1851 screen->get_param(screen, PIPE_CAP_DOUBLES) &&
1852 !(nir_options->lower_doubles_options & nir_lower_fp64_full_software))
1853 extensions->NV_copy_depth_to_color = true;
1854 }
1855