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[mesa.git] / src / mesa / state_tracker / st_extensions.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "compiler/nir/nir.h"
30
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/spirv_extensions.h"
35 #include "main/version.h"
36
37 #include "pipe/p_context.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "tgsi/tgsi_from_mesa.h"
41 #include "util/u_math.h"
42
43 #include "st_context.h"
44 #include "st_debug.h"
45 #include "st_extensions.h"
46 #include "st_format.h"
47
48
49 /*
50 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
51 * avoid evaluating arguments (which are often function calls) more than once.
52 */
53
54 static unsigned _min(unsigned a, unsigned b)
55 {
56 return (a < b) ? a : b;
57 }
58
59 static float _maxf(float a, float b)
60 {
61 return (a > b) ? a : b;
62 }
63
64 static int _clamp(int a, int min, int max)
65 {
66 if (a < min)
67 return min;
68 else if (a > max)
69 return max;
70 else
71 return a;
72 }
73
74
75 /**
76 * Query driver to get implementation limits.
77 * Note that we have to limit/clamp against Mesa's internal limits too.
78 */
79 void st_init_limits(struct pipe_screen *screen,
80 struct gl_constants *c, struct gl_extensions *extensions)
81 {
82 int supported_irs;
83 unsigned sh;
84 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
88 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
89
90 c->Max3DTextureLevels
91 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
92 MAX_3D_TEXTURE_LEVELS);
93
94 c->MaxCubeTextureLevels
95 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
96 MAX_CUBE_TEXTURE_LEVELS);
97
98 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
99
100 c->MaxArrayTextureLayers
101 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
102
103 /* Define max viewport size and max renderbuffer size in terms of
104 * max texture size (note: max tex RECT size = max tex 2D size).
105 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
106 */
107 c->MaxViewportWidth =
108 c->MaxViewportHeight =
109 c->MaxRenderbufferSize = c->MaxTextureRectSize;
110
111 c->SubPixelBits =
112 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
113 c->ViewportSubpixelBits =
114 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
115
116 c->MaxDrawBuffers = c->MaxColorAttachments =
117 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
118 1, MAX_DRAW_BUFFERS);
119
120 c->MaxDualSourceDrawBuffers =
121 _clamp(screen->get_param(screen,
122 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
123 0, MAX_DRAW_BUFFERS);
124
125 c->MaxLineWidth =
126 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
127 c->MaxLineWidthAA =
128 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
129
130 c->MaxPointSize =
131 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
132 c->MaxPointSizeAA =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
134
135 c->MinPointSize = 1.0f;
136 c->MinPointSizeAA = 1.0f;
137
138 c->MaxTextureMaxAnisotropy =
139 _maxf(2.0f,
140 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
141
142 c->MaxTextureLodBias =
143 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
144
145 c->QuadsFollowProvokingVertexConvention =
146 screen->get_param(screen,
147 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
148
149 c->MaxUniformBlockSize =
150 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
151 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
152 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
153 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
154 */
155 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
156
157 if (c->MaxUniformBlockSize < 16384) {
158 can_ubo = false;
159 }
160
161 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
162 struct gl_shader_compiler_options *options;
163 struct gl_program_constants *pc;
164 const nir_shader_compiler_options *nir_options = NULL;
165
166 bool prefer_nir = PIPE_SHADER_IR_NIR ==
167 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_PREFERRED_IR);
168
169 if (screen->get_compiler_options && prefer_nir) {
170 nir_options = (const nir_shader_compiler_options *)
171 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
172 }
173
174 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
175 pc = &c->Program[stage];
176 options = &c->ShaderCompilerOptions[stage];
177 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
178
179 if (sh == PIPE_SHADER_COMPUTE) {
180 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
181 continue;
182 supported_irs =
183 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
184 if (!(supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
185 (1 << PIPE_SHADER_IR_NIR))))
186 continue;
187 }
188
189 pc->MaxTextureImageUnits =
190 _min(screen->get_shader_param(screen, sh,
191 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
192 MAX_TEXTURE_IMAGE_UNITS);
193
194 pc->MaxInstructions =
195 pc->MaxNativeInstructions =
196 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
197 pc->MaxAluInstructions =
198 pc->MaxNativeAluInstructions =
199 screen->get_shader_param(screen, sh,
200 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
201 pc->MaxTexInstructions =
202 pc->MaxNativeTexInstructions =
203 screen->get_shader_param(screen, sh,
204 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
205 pc->MaxTexIndirections =
206 pc->MaxNativeTexIndirections =
207 screen->get_shader_param(screen, sh,
208 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
209 pc->MaxAttribs =
210 pc->MaxNativeAttribs =
211 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
212 pc->MaxTemps =
213 pc->MaxNativeTemps =
214 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
215 pc->MaxAddressRegs =
216 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
217
218 pc->MaxUniformComponents =
219 screen->get_shader_param(screen, sh,
220 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / 4;
221 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
222 MAX_UNIFORMS * 4);
223
224 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
225 * This gives us a limit of 4096 values - but we may need to generate
226 * internal values in addition to what the source program uses. So, we
227 * drop the limit one step lower, to 2048, to be safe.
228 */
229 pc->MaxParameters =
230 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
231 pc->MaxInputComponents =
232 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
233 pc->MaxOutputComponents =
234 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
235
236
237 pc->MaxUniformBlocks =
238 screen->get_shader_param(screen, sh,
239 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
240 if (pc->MaxUniformBlocks)
241 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
242 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
243
244 pc->MaxCombinedUniformComponents =
245 pc->MaxUniformComponents +
246 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
247
248 pc->MaxShaderStorageBlocks =
249 screen->get_shader_param(screen, sh,
250 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
251
252 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
253 if (temp) {
254 /*
255 * for separate atomic counters get the actual hw limits
256 * per stage on atomic counters and buffers
257 */
258 pc->MaxAtomicCounters = temp;
259 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
260 } else if (pc->MaxShaderStorageBlocks) {
261 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
262 /*
263 * without separate atomic counters, reserve half of the available
264 * SSBOs for atomic buffers, and the other half for normal SSBOs.
265 */
266 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
267 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
268 }
269 pc->MaxImageUniforms = screen->get_shader_param(
270 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
271
272 /* Gallium doesn't really care about local vs. env parameters so use the
273 * same limits.
274 */
275 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
276 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
277
278 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
279 pc->LowInt.RangeMin = 31;
280 pc->LowInt.RangeMax = 30;
281 pc->LowInt.Precision = 0;
282 pc->MediumInt = pc->HighInt = pc->LowInt;
283 }
284
285 /* TODO: make these more fine-grained if anyone needs it */
286 options->MaxIfDepth =
287 screen->get_shader_param(screen, sh,
288 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
289 options->EmitNoLoops =
290 !screen->get_shader_param(screen, sh,
291 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
292 options->EmitNoMainReturn =
293 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
294
295 options->EmitNoCont =
296 !screen->get_shader_param(screen, sh,
297 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
298
299 options->EmitNoIndirectInput =
300 !screen->get_shader_param(screen, sh,
301 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
302 options->EmitNoIndirectOutput =
303 !screen->get_shader_param(screen, sh,
304 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
305 options->EmitNoIndirectTemp =
306 !screen->get_shader_param(screen, sh,
307 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
308 options->EmitNoIndirectUniform =
309 !screen->get_shader_param(screen, sh,
310 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
311
312 if (pc->MaxNativeInstructions &&
313 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
314 can_ubo = false;
315 }
316
317 if (options->EmitNoLoops)
318 options->MaxUnrollIterations =
319 MIN2(screen->get_shader_param(screen, sh,
320 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
321 65536);
322 else
323 options->MaxUnrollIterations =
324 screen->get_shader_param(screen, sh,
325 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
326
327 if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
328 options->LowerCombinedClipCullDistance = true;
329
330 /* NIR can do the lowering on our behalf and we'll get better results
331 * because it can actually optimize SSBO access.
332 */
333 options->LowerBufferInterfaceBlocks = !prefer_nir;
334
335 if (sh == MESA_SHADER_VERTEX) {
336 if (screen->get_param(screen, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED))
337 options->LowerBuiltinVariablesXfb |= VARYING_BIT_POS;
338 if (screen->get_param(screen, PIPE_CAP_PSIZ_CLAMPED))
339 options->LowerBuiltinVariablesXfb |= VARYING_BIT_PSIZ;
340 }
341
342 /* Initialize lower precision shader compiler option based on
343 * the value of PIPE_SHADER_CAP_FP16.
344 */
345 options->LowerPrecision =
346 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16);
347 }
348
349 c->MaxUserAssignableUniformLocations =
350 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
351 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
352 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
353 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
354 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
355
356 c->GLSLOptimizeConservatively =
357 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
358 c->GLSLLowerConstArrays =
359 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
360 c->GLSLTessLevelsAsInputs =
361 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
362 c->LowerTessLevel =
363 !screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS);
364 c->LowerCsDerivedVariables =
365 !screen->get_param(screen, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED);
366 c->PrimitiveRestartForPatches =
367 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
368
369 c->MaxCombinedTextureImageUnits =
370 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
371 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
372 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
373 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
374 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
375 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
376 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
377
378 /* This depends on program constants. */
379 c->MaxTextureCoordUnits
380 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
381 MAX_TEXTURE_COORD_UNITS);
382
383 c->MaxTextureUnits =
384 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
385 c->MaxTextureCoordUnits);
386
387 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
388 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
389
390 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
391 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
392 c->MaxGeometryOutputVertices =
393 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
394 c->MaxGeometryTotalOutputComponents =
395 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
396 c->MaxGeometryShaderInvocations =
397 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
398 c->MaxTessPatchComponents =
399 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
400 MAX_VARYING) * 4;
401
402 c->MinProgramTexelOffset =
403 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
404 c->MaxProgramTexelOffset =
405 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
406
407 c->MaxProgramTextureGatherComponents =
408 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
409 c->MinProgramTextureGatherOffset =
410 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
411 c->MaxProgramTextureGatherOffset =
412 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
413
414 c->MaxTransformFeedbackBuffers =
415 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
416 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
417 MAX_FEEDBACK_BUFFERS);
418 c->MaxTransformFeedbackSeparateComponents =
419 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
420 c->MaxTransformFeedbackInterleavedComponents =
421 screen->get_param(screen,
422 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
423 c->MaxVertexStreams =
424 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
425
426 /* The vertex stream must fit into pipe_stream_output_info::stream */
427 assert(c->MaxVertexStreams <= 4);
428
429 c->MaxVertexAttribStride
430 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
431
432 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
433 * is only 16 bits.
434 */
435 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
436 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
437
438 c->StripTextureBorder = GL_TRUE;
439
440 c->GLSLSkipStrictMaxUniformLimitCheck =
441 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
442
443 c->UniformBufferOffsetAlignment =
444 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
445
446 if (can_ubo) {
447 extensions->ARB_uniform_buffer_object = GL_TRUE;
448 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
449 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
450 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
451 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
452 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
453 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
454 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
455 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
456 }
457
458 c->GLSLFragCoordIsSysVal =
459 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
460 c->GLSLPointCoordIsSysVal =
461 screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
462 c->GLSLFrontFacingIsSysVal =
463 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
464
465 /* GL_ARB_get_program_binary */
466 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
467 c->NumProgramBinaryFormats = 1;
468
469 c->MaxAtomicBufferBindings =
470 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
471 c->MaxAtomicBufferSize =
472 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
473
474 c->MaxCombinedAtomicBuffers =
475 MIN2(screen->get_param(screen,
476 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
477 MAX_COMBINED_ATOMIC_BUFFERS);
478 if (!c->MaxCombinedAtomicBuffers) {
479 c->MaxCombinedAtomicBuffers =
480 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
481 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
482 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
483 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
484 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
485 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
486 }
487
488 c->MaxCombinedAtomicCounters =
489 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
490 if (!c->MaxCombinedAtomicCounters)
491 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
492
493 if (c->MaxCombinedAtomicBuffers > 0) {
494 extensions->ARB_shader_atomic_counters = GL_TRUE;
495 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
496 }
497
498 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
499 c->ShaderStorageBufferOffsetAlignment =
500 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
501 if (c->ShaderStorageBufferOffsetAlignment) {
502 c->MaxCombinedShaderStorageBlocks =
503 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
504 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
505 if (!c->MaxCombinedShaderStorageBlocks) {
506 c->MaxCombinedShaderStorageBlocks =
507 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
508 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
509 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
510 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
511 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
512 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
513 }
514 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
515
516 c->MaxCombinedShaderOutputResources +=
517 c->MaxCombinedShaderStorageBlocks;
518 c->MaxShaderStorageBlockSize =
519 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
520 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
521 }
522
523 c->MaxCombinedImageUniforms =
524 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
525 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
526 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
527 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
528 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
529 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
530 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
531 c->MaxImageUnits = MAX_IMAGE_UNITS;
532 if (c->MaxCombinedImageUniforms) {
533 extensions->ARB_shader_image_load_store = GL_TRUE;
534 extensions->ARB_shader_image_size = GL_TRUE;
535 }
536
537 /* ARB_framebuffer_no_attachments */
538 c->MaxFramebufferWidth = c->MaxViewportWidth;
539 c->MaxFramebufferHeight = c->MaxViewportHeight;
540 /* NOTE: we cheat here a little by assuming that
541 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
542 * number of layers as we need, although we technically
543 * could have more the generality is not really useful
544 * in practicality.
545 */
546 c->MaxFramebufferLayers =
547 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
548
549 c->MaxWindowRectangles =
550 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
551
552 c->SparseBufferPageSize =
553 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
554
555 c->AllowMappedBuffersDuringExecution =
556 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
557
558 c->UseSTD430AsDefaultPacking =
559 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
560
561 c->MaxSubpixelPrecisionBiasBits =
562 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
563
564 c->ConservativeRasterDilateRange[0] =
565 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
566 c->ConservativeRasterDilateRange[1] =
567 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
568 c->ConservativeRasterDilateGranularity =
569 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
570
571 /* limit the max combined shader output resources to a driver limit */
572 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
573 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
574 c->MaxCombinedShaderOutputResources = temp;
575
576 c->VertexBufferOffsetIsInt32 =
577 screen->get_param(screen, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET);
578
579 c->MultiDrawWithUserIndices =
580 screen->get_param(screen, PIPE_CAP_DRAW_INFO_START_WITH_USER_INDICES);
581
582 c->glBeginEndBufferSize =
583 screen->get_param(screen, PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE);
584 }
585
586
587 /**
588 * Given a member \c x of struct gl_extensions, return offset of
589 * \c x in bytes.
590 */
591 #define o(x) offsetof(struct gl_extensions, x)
592
593
594 struct st_extension_cap_mapping {
595 int extension_offset;
596 int cap;
597 };
598
599 struct st_extension_format_mapping {
600 int extension_offset[2];
601 enum pipe_format format[32];
602
603 /* If TRUE, at least one format must be supported for the extensions to be
604 * advertised. If FALSE, all the formats must be supported. */
605 GLboolean need_at_least_one;
606 };
607
608 /**
609 * Enable extensions if certain pipe formats are supported by the driver.
610 * What extensions will be enabled and what formats must be supported is
611 * described by the array of st_extension_format_mapping.
612 *
613 * target and bind_flags are passed to is_format_supported.
614 */
615 static void
616 init_format_extensions(struct pipe_screen *screen,
617 struct gl_extensions *extensions,
618 const struct st_extension_format_mapping *mapping,
619 unsigned num_mappings,
620 enum pipe_texture_target target,
621 unsigned bind_flags)
622 {
623 GLboolean *extension_table = (GLboolean *) extensions;
624 unsigned i;
625 int j;
626 int num_formats = ARRAY_SIZE(mapping->format);
627 int num_ext = ARRAY_SIZE(mapping->extension_offset);
628
629 for (i = 0; i < num_mappings; i++) {
630 int num_supported = 0;
631
632 /* Examine each format in the list. */
633 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
634 if (screen->is_format_supported(screen, mapping[i].format[j],
635 target, 0, 0, bind_flags)) {
636 num_supported++;
637 }
638 }
639
640 if (!num_supported ||
641 (!mapping[i].need_at_least_one && num_supported != j)) {
642 continue;
643 }
644
645 /* Enable all extensions in the list. */
646 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
647 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
648 }
649 }
650
651
652 /**
653 * Given a list of formats and bind flags, return the maximum number
654 * of samples supported by any of those formats.
655 */
656 static unsigned
657 get_max_samples_for_formats(struct pipe_screen *screen,
658 unsigned num_formats,
659 const enum pipe_format *formats,
660 unsigned max_samples,
661 unsigned bind)
662 {
663 unsigned i, f;
664
665 for (i = max_samples; i > 0; --i) {
666 for (f = 0; f < num_formats; f++) {
667 if (screen->is_format_supported(screen, formats[f],
668 PIPE_TEXTURE_2D, i, i, bind)) {
669 return i;
670 }
671 }
672 }
673 return 0;
674 }
675
676 static unsigned
677 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
678 unsigned num_formats,
679 const enum pipe_format *formats,
680 unsigned max_samples,
681 unsigned num_storage_samples,
682 unsigned bind)
683 {
684 unsigned i, f;
685
686 for (i = max_samples; i > 0; --i) {
687 for (f = 0; f < num_formats; f++) {
688 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
689 i, num_storage_samples, bind)) {
690 return i;
691 }
692 }
693 }
694 return 0;
695 }
696
697 /**
698 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
699 * which GL extensions are supported.
700 * Quite a few extensions are always supported because they are standard
701 * features or can be built on top of other gallium features.
702 * Some fine tuning may still be needed.
703 */
704 void st_init_extensions(struct pipe_screen *screen,
705 struct gl_constants *consts,
706 struct gl_extensions *extensions,
707 struct st_config_options *options,
708 gl_api api)
709 {
710 unsigned i;
711 GLboolean *extension_table = (GLboolean *) extensions;
712
713 static const struct st_extension_cap_mapping cap_mapping[] = {
714 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
715 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
716 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
717 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
718 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
719 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
720 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
721 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
722 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
723 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
724 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
725 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
726 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
727 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
728 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
729 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
730 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
731 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
732 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
733 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
734 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
735 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
736 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
737 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
738 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
739 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
740 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
741 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
742 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
743 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
744 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
745 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
746 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
747 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
748 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
749 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
750 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
751 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
752 { o(EXT_shader_image_load_store), PIPE_CAP_TGSI_ATOMINC_WRAP },
753 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
754 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
755 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
756 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
757 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
758 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
759 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
760 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
761 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
762 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
763 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
764 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
765 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
766 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
767 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
768 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
769 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
770 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
771 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
772
773 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
774 { o(EXT_demote_to_helper_invocation), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION },
775 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
776 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
777 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
778 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
779 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
780 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
781 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
782 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
783 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
784 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
785 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
786 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
787 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
788 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
789 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
790 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
791
792 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
793 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
794 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
795 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
796 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
797 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
798 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
799 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
800 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
801 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
802 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
803 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
804 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
805 { o(NV_shader_atomic_float), PIPE_CAP_TGSI_ATOMFADD },
806 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
807 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
808 /* GL_NV_point_sprite is not supported by gallium because we don't
809 * support the GL_POINT_SPRITE_R_MODE_NV option. */
810
811 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
812 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
813 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
814 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
815 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP, },
816 };
817
818 /* Required: render target and sampler support */
819 static const struct st_extension_format_mapping rendertarget_mapping[] = {
820 { { o(OES_texture_float) },
821 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
822
823 { { o(OES_texture_half_float) },
824 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
825
826 { { o(ARB_texture_rgb10_a2ui) },
827 { PIPE_FORMAT_R10G10B10A2_UINT,
828 PIPE_FORMAT_B10G10R10A2_UINT },
829 GL_TRUE }, /* at least one format must be supported */
830
831 { { o(EXT_sRGB) },
832 { PIPE_FORMAT_A8B8G8R8_SRGB,
833 PIPE_FORMAT_B8G8R8A8_SRGB,
834 PIPE_FORMAT_R8G8B8A8_SRGB },
835 GL_TRUE }, /* at least one format must be supported */
836
837 { { o(EXT_packed_float) },
838 { PIPE_FORMAT_R11G11B10_FLOAT } },
839
840 { { o(EXT_texture_integer) },
841 { PIPE_FORMAT_R32G32B32A32_UINT,
842 PIPE_FORMAT_R32G32B32A32_SINT } },
843
844 { { o(ARB_texture_rg) },
845 { PIPE_FORMAT_R8_UNORM,
846 PIPE_FORMAT_R8G8_UNORM } },
847
848 { { o(EXT_texture_norm16) },
849 { PIPE_FORMAT_R16_UNORM,
850 PIPE_FORMAT_R16G16_UNORM,
851 PIPE_FORMAT_R16G16B16A16_UNORM } },
852
853 { { o(EXT_render_snorm) },
854 { PIPE_FORMAT_R8_SNORM,
855 PIPE_FORMAT_R8G8_SNORM,
856 PIPE_FORMAT_R8G8B8A8_SNORM,
857 PIPE_FORMAT_R16_SNORM,
858 PIPE_FORMAT_R16G16_SNORM,
859 PIPE_FORMAT_R16G16B16A16_SNORM } },
860 };
861
862 /* Required: render target, sampler, and blending */
863 static const struct st_extension_format_mapping rt_blendable[] = {
864 { { o(EXT_float_blend) },
865 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
866 };
867
868 /* Required: depth stencil and sampler support */
869 static const struct st_extension_format_mapping depthstencil_mapping[] = {
870 { { o(ARB_depth_buffer_float) },
871 { PIPE_FORMAT_Z32_FLOAT,
872 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
873 };
874
875 /* Required: sampler support */
876 static const struct st_extension_format_mapping texture_mapping[] = {
877 { { o(ARB_texture_compression_rgtc) },
878 { PIPE_FORMAT_RGTC1_UNORM,
879 PIPE_FORMAT_RGTC1_SNORM,
880 PIPE_FORMAT_RGTC2_UNORM,
881 PIPE_FORMAT_RGTC2_SNORM } },
882
883 { { o(EXT_texture_compression_latc) },
884 { PIPE_FORMAT_LATC1_UNORM,
885 PIPE_FORMAT_LATC1_SNORM,
886 PIPE_FORMAT_LATC2_UNORM,
887 PIPE_FORMAT_LATC2_SNORM } },
888
889 { { o(EXT_texture_compression_s3tc),
890 o(ANGLE_texture_compression_dxt) },
891 { PIPE_FORMAT_DXT1_RGB,
892 PIPE_FORMAT_DXT1_RGBA,
893 PIPE_FORMAT_DXT3_RGBA,
894 PIPE_FORMAT_DXT5_RGBA } },
895
896 { { o(EXT_texture_compression_s3tc_srgb) },
897 { PIPE_FORMAT_DXT1_SRGB,
898 PIPE_FORMAT_DXT1_SRGBA,
899 PIPE_FORMAT_DXT3_SRGBA,
900 PIPE_FORMAT_DXT5_SRGBA } },
901
902 { { o(ARB_texture_compression_bptc) },
903 { PIPE_FORMAT_BPTC_RGBA_UNORM,
904 PIPE_FORMAT_BPTC_SRGBA,
905 PIPE_FORMAT_BPTC_RGB_FLOAT,
906 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
907
908 { { o(TDFX_texture_compression_FXT1) },
909 { PIPE_FORMAT_FXT1_RGB,
910 PIPE_FORMAT_FXT1_RGBA } },
911
912 { { o(KHR_texture_compression_astc_ldr),
913 o(KHR_texture_compression_astc_sliced_3d) },
914 { PIPE_FORMAT_ASTC_4x4,
915 PIPE_FORMAT_ASTC_5x4,
916 PIPE_FORMAT_ASTC_5x5,
917 PIPE_FORMAT_ASTC_6x5,
918 PIPE_FORMAT_ASTC_6x6,
919 PIPE_FORMAT_ASTC_8x5,
920 PIPE_FORMAT_ASTC_8x6,
921 PIPE_FORMAT_ASTC_8x8,
922 PIPE_FORMAT_ASTC_10x5,
923 PIPE_FORMAT_ASTC_10x6,
924 PIPE_FORMAT_ASTC_10x8,
925 PIPE_FORMAT_ASTC_10x10,
926 PIPE_FORMAT_ASTC_12x10,
927 PIPE_FORMAT_ASTC_12x12,
928 PIPE_FORMAT_ASTC_4x4_SRGB,
929 PIPE_FORMAT_ASTC_5x4_SRGB,
930 PIPE_FORMAT_ASTC_5x5_SRGB,
931 PIPE_FORMAT_ASTC_6x5_SRGB,
932 PIPE_FORMAT_ASTC_6x6_SRGB,
933 PIPE_FORMAT_ASTC_8x5_SRGB,
934 PIPE_FORMAT_ASTC_8x6_SRGB,
935 PIPE_FORMAT_ASTC_8x8_SRGB,
936 PIPE_FORMAT_ASTC_10x5_SRGB,
937 PIPE_FORMAT_ASTC_10x6_SRGB,
938 PIPE_FORMAT_ASTC_10x8_SRGB,
939 PIPE_FORMAT_ASTC_10x10_SRGB,
940 PIPE_FORMAT_ASTC_12x10_SRGB,
941 PIPE_FORMAT_ASTC_12x12_SRGB } },
942
943 /* ASTC software fallback support. */
944 { { o(KHR_texture_compression_astc_ldr),
945 o(KHR_texture_compression_astc_sliced_3d) },
946 { PIPE_FORMAT_R8G8B8A8_UNORM,
947 PIPE_FORMAT_R8G8B8A8_SRGB } },
948
949 { { o(EXT_texture_shared_exponent) },
950 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
951
952 { { o(EXT_texture_snorm) },
953 { PIPE_FORMAT_R8G8B8A8_SNORM } },
954
955 { { o(EXT_texture_sRGB),
956 o(EXT_texture_sRGB_decode) },
957 { PIPE_FORMAT_A8B8G8R8_SRGB,
958 PIPE_FORMAT_B8G8R8A8_SRGB,
959 PIPE_FORMAT_A8R8G8B8_SRGB,
960 PIPE_FORMAT_R8G8B8A8_SRGB},
961 GL_TRUE }, /* at least one format must be supported */
962
963 { { o(EXT_texture_sRGB_R8) },
964 { PIPE_FORMAT_R8_SRGB },
965 GL_TRUE },
966
967 { { o(EXT_texture_type_2_10_10_10_REV) },
968 { PIPE_FORMAT_R10G10B10A2_UNORM,
969 PIPE_FORMAT_B10G10R10A2_UNORM },
970 GL_TRUE }, /* at least one format must be supported */
971
972 { { o(ATI_texture_compression_3dc) },
973 { PIPE_FORMAT_LATC2_UNORM } },
974
975 { { o(MESA_ycbcr_texture) },
976 { PIPE_FORMAT_UYVY,
977 PIPE_FORMAT_YUYV },
978 GL_TRUE }, /* at least one format must be supported */
979
980 { { o(OES_compressed_ETC1_RGB8_texture) },
981 { PIPE_FORMAT_ETC1_RGB8,
982 PIPE_FORMAT_R8G8B8A8_UNORM },
983 GL_TRUE }, /* at least one format must be supported */
984
985 { { o(ARB_stencil_texturing),
986 o(ARB_texture_stencil8) },
987 { PIPE_FORMAT_X24S8_UINT,
988 PIPE_FORMAT_S8X24_UINT },
989 GL_TRUE }, /* at least one format must be supported */
990
991 { { o(AMD_compressed_ATC_texture) },
992 { PIPE_FORMAT_ATC_RGB,
993 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
994 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
995 };
996
997 /* Required: vertex fetch support. */
998 static const struct st_extension_format_mapping vertex_mapping[] = {
999 { { o(EXT_vertex_array_bgra) },
1000 { PIPE_FORMAT_B8G8R8A8_UNORM } },
1001 { { o(ARB_vertex_type_2_10_10_10_rev) },
1002 { PIPE_FORMAT_R10G10B10A2_UNORM,
1003 PIPE_FORMAT_B10G10R10A2_UNORM,
1004 PIPE_FORMAT_R10G10B10A2_SNORM,
1005 PIPE_FORMAT_B10G10R10A2_SNORM,
1006 PIPE_FORMAT_R10G10B10A2_USCALED,
1007 PIPE_FORMAT_B10G10R10A2_USCALED,
1008 PIPE_FORMAT_R10G10B10A2_SSCALED,
1009 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1010 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1011 { PIPE_FORMAT_R11G11B10_FLOAT } },
1012 };
1013
1014 static const struct st_extension_format_mapping tbo_rgb32[] = {
1015 { {o(ARB_texture_buffer_object_rgb32) },
1016 { PIPE_FORMAT_R32G32B32_FLOAT,
1017 PIPE_FORMAT_R32G32B32_UINT,
1018 PIPE_FORMAT_R32G32B32_SINT,
1019 } },
1020 };
1021
1022 /*
1023 * Extensions that are supported by all Gallium drivers:
1024 */
1025 extensions->ARB_ES2_compatibility = GL_TRUE;
1026 extensions->ARB_depth_texture = GL_TRUE;
1027 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
1028 extensions->ARB_explicit_attrib_location = GL_TRUE;
1029 extensions->ARB_explicit_uniform_location = GL_TRUE;
1030 extensions->ARB_fragment_coord_conventions = GL_TRUE;
1031 extensions->ARB_fragment_program = GL_TRUE;
1032 extensions->ARB_fragment_shader = GL_TRUE;
1033 extensions->ARB_half_float_vertex = GL_TRUE;
1034 extensions->ARB_internalformat_query = GL_TRUE;
1035 extensions->ARB_internalformat_query2 = GL_TRUE;
1036 extensions->ARB_map_buffer_range = GL_TRUE;
1037 extensions->ARB_sync = GL_TRUE;
1038 extensions->ARB_texture_border_clamp = GL_TRUE;
1039 extensions->ARB_texture_cube_map = GL_TRUE;
1040 extensions->ARB_texture_env_combine = GL_TRUE;
1041 extensions->ARB_texture_env_crossbar = GL_TRUE;
1042 extensions->ARB_texture_env_dot3 = GL_TRUE;
1043 extensions->ARB_vertex_program = GL_TRUE;
1044 extensions->ARB_vertex_shader = GL_TRUE;
1045
1046 extensions->EXT_blend_color = GL_TRUE;
1047 extensions->EXT_blend_func_separate = GL_TRUE;
1048 extensions->EXT_blend_minmax = GL_TRUE;
1049 extensions->EXT_EGL_image_storage = GL_TRUE;
1050 extensions->EXT_gpu_program_parameters = GL_TRUE;
1051 extensions->EXT_pixel_buffer_object = GL_TRUE;
1052 extensions->EXT_point_parameters = GL_TRUE;
1053 extensions->EXT_provoking_vertex = GL_TRUE;
1054 extensions->EXT_stencil_two_side = GL_TRUE;
1055 extensions->EXT_texture_env_dot3 = GL_TRUE;
1056
1057 extensions->ATI_fragment_shader = GL_TRUE;
1058 extensions->ATI_texture_env_combine3 = GL_TRUE;
1059
1060 extensions->MESA_framebuffer_flip_y = GL_TRUE;
1061 extensions->MESA_pack_invert = GL_TRUE;
1062
1063 extensions->NV_copy_image = GL_TRUE;
1064 extensions->NV_fog_distance = GL_TRUE;
1065 extensions->NV_texture_env_combine4 = GL_TRUE;
1066 extensions->NV_texture_rectangle = GL_TRUE;
1067
1068 extensions->OES_EGL_image = GL_TRUE;
1069 extensions->OES_EGL_image_external = GL_TRUE;
1070 extensions->OES_draw_texture = GL_TRUE;
1071
1072 /* Expose the extensions which directly correspond to gallium caps. */
1073 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1074 if (screen->get_param(screen, cap_mapping[i].cap)) {
1075 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1076 }
1077 }
1078
1079 /* Expose the extensions which directly correspond to gallium formats. */
1080 init_format_extensions(screen, extensions, rendertarget_mapping,
1081 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1082 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1083 init_format_extensions(screen, extensions, rt_blendable,
1084 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1085 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1086 PIPE_BIND_BLENDABLE);
1087 init_format_extensions(screen, extensions, depthstencil_mapping,
1088 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1089 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1090 init_format_extensions(screen, extensions, texture_mapping,
1091 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1092 PIPE_BIND_SAMPLER_VIEW);
1093 init_format_extensions(screen, extensions, vertex_mapping,
1094 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1095 PIPE_BIND_VERTEX_BUFFER);
1096
1097 /* Figure out GLSL support and set GLSLVersion to it. */
1098 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1099 consts->GLSLVersionCompat =
1100 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1101
1102 const unsigned ESSLVersion =
1103 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1104 const unsigned GLSLVersion =
1105 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1106 consts->GLSLVersion;
1107
1108 _mesa_override_glsl_version(consts);
1109
1110 if (options->force_glsl_version > 0 &&
1111 options->force_glsl_version <= GLSLVersion) {
1112 consts->ForceGLSLVersion = options->force_glsl_version;
1113 }
1114
1115 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1116
1117 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1118
1119 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1120
1121 consts->dri_config_options_sha1 = options->config_options_sha1;
1122
1123 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1124
1125 /* Technically we are turning on the EXT_gpu_shader5 extension,
1126 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1127 * switches on EXT_gpu_shader5:
1128 */
1129 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1130 extensions->ARB_gpu_shader5 = GL_TRUE;
1131
1132 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1133 extensions->ARB_gpu_shader5 = GL_TRUE;
1134 if (GLSLVersion >= 410)
1135 extensions->ARB_shader_precision = GL_TRUE;
1136
1137 /* This extension needs full OpenGL 3.2, but we don't know if that's
1138 * supported at this point. Only check the GLSL version. */
1139 if (GLSLVersion >= 150 &&
1140 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1141 extensions->AMD_vertex_shader_layer = GL_TRUE;
1142 }
1143
1144 if (GLSLVersion >= 140) {
1145 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1146 * we can always expose it if the driver can do 140. Supporting
1147 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1148 * pipe cap.
1149 */
1150 extensions->EXT_gpu_shader4 = GL_TRUE;
1151 extensions->EXT_texture_buffer_object = GL_TRUE;
1152
1153 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1154 extensions->ARB_enhanced_layouts = GL_TRUE;
1155 }
1156
1157 if (GLSLVersion >= 130) {
1158 consts->NativeIntegers = GL_TRUE;
1159 consts->MaxClipPlanes = 8;
1160
1161 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1162 consts->VertexID_is_zero_based = GL_TRUE;
1163 }
1164
1165 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1166 extensions->ARB_conservative_depth = GL_TRUE;
1167 extensions->ARB_shading_language_packing = GL_TRUE;
1168 extensions->OES_depth_texture_cube_map = GL_TRUE;
1169 extensions->ARB_shading_language_420pack = GL_TRUE;
1170 extensions->ARB_texture_query_levels = GL_TRUE;
1171
1172 extensions->ARB_shader_bit_encoding = GL_TRUE;
1173
1174 extensions->EXT_shader_integer_mix = GL_TRUE;
1175 extensions->ARB_arrays_of_arrays = GL_TRUE;
1176 extensions->MESA_shader_integer_functions = GL_TRUE;
1177
1178 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1179 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1180 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1181 }
1182 } else {
1183 /* Optional integer support for GLSL 1.2. */
1184 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1185 PIPE_SHADER_CAP_INTEGERS) &&
1186 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1187 PIPE_SHADER_CAP_INTEGERS)) {
1188 consts->NativeIntegers = GL_TRUE;
1189
1190 extensions->EXT_shader_integer_mix = GL_TRUE;
1191 }
1192
1193 /* Integer textures make no sense before GLSL 1.30 */
1194 extensions->EXT_texture_integer = GL_FALSE;
1195 }
1196
1197 consts->GLSLZeroInit = options->glsl_zero_init;
1198
1199 consts->VendorOverride = options->force_gl_vendor;
1200
1201 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1202
1203 /* Below are the cases which cannot be moved into tables easily. */
1204
1205 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1206 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1207 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1208 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1209 extensions->ARB_tessellation_shader = GL_TRUE;
1210 }
1211
1212 /* What this is really checking for is the ability to support multiple
1213 * invocations of a geometry shader. There is no separate cap for that, so
1214 * we check the GLSLVersion.
1215 */
1216 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1217 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1218 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1219 extensions->OES_geometry_shader = GL_TRUE;
1220 }
1221
1222 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1223 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1224 */
1225 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1226 extensions->ARB_gpu_shader5;
1227
1228 /* Maximum sample count. */
1229 {
1230 static const enum pipe_format color_formats[] = {
1231 PIPE_FORMAT_R8G8B8A8_UNORM,
1232 PIPE_FORMAT_B8G8R8A8_UNORM,
1233 PIPE_FORMAT_A8R8G8B8_UNORM,
1234 PIPE_FORMAT_A8B8G8R8_UNORM,
1235 };
1236 static const enum pipe_format depth_formats[] = {
1237 PIPE_FORMAT_Z16_UNORM,
1238 PIPE_FORMAT_Z24X8_UNORM,
1239 PIPE_FORMAT_X8Z24_UNORM,
1240 PIPE_FORMAT_Z32_UNORM,
1241 PIPE_FORMAT_Z32_FLOAT
1242 };
1243 static const enum pipe_format int_formats[] = {
1244 PIPE_FORMAT_R8G8B8A8_SINT
1245 };
1246 static const enum pipe_format void_formats[] = {
1247 PIPE_FORMAT_NONE
1248 };
1249
1250 consts->MaxSamples =
1251 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1252 color_formats, 16,
1253 PIPE_BIND_RENDER_TARGET);
1254
1255 consts->MaxImageSamples =
1256 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1257 color_formats, 16,
1258 PIPE_BIND_SHADER_IMAGE);
1259
1260 consts->MaxColorTextureSamples =
1261 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1262 color_formats, consts->MaxSamples,
1263 PIPE_BIND_SAMPLER_VIEW);
1264
1265 consts->MaxDepthTextureSamples =
1266 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1267 depth_formats, consts->MaxSamples,
1268 PIPE_BIND_SAMPLER_VIEW);
1269
1270 consts->MaxIntegerSamples =
1271 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1272 int_formats, consts->MaxSamples,
1273 PIPE_BIND_SAMPLER_VIEW);
1274
1275 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1276 consts->MaxFramebufferSamples =
1277 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1278 void_formats, 32,
1279 PIPE_BIND_RENDER_TARGET);
1280
1281 if (extensions->AMD_framebuffer_multisample_advanced) {
1282 /* AMD_framebuffer_multisample_advanced */
1283 /* This can be greater than storage samples. */
1284 consts->MaxColorFramebufferSamples =
1285 get_max_samples_for_formats_advanced(screen,
1286 ARRAY_SIZE(color_formats),
1287 color_formats, 16,
1288 consts->MaxSamples,
1289 PIPE_BIND_RENDER_TARGET);
1290
1291 /* If the driver supports N color samples, it means it supports
1292 * N samples and N storage samples. N samples >= N storage
1293 * samples.
1294 */
1295 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1296 consts->MaxDepthStencilFramebufferSamples =
1297 consts->MaxDepthTextureSamples;
1298
1299 assert(consts->MaxColorFramebufferSamples >=
1300 consts->MaxDepthStencilFramebufferSamples);
1301 assert(consts->MaxDepthStencilFramebufferSamples >=
1302 consts->MaxColorFramebufferStorageSamples);
1303
1304 consts->NumSupportedMultisampleModes = 0;
1305
1306 unsigned depth_samples_supported = 0;
1307
1308 for (unsigned samples = 2;
1309 samples <= consts->MaxDepthStencilFramebufferSamples;
1310 samples++) {
1311 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1312 PIPE_TEXTURE_2D, samples, samples,
1313 PIPE_BIND_DEPTH_STENCIL))
1314 depth_samples_supported |= 1 << samples;
1315 }
1316
1317 for (unsigned samples = 2;
1318 samples <= consts->MaxColorFramebufferSamples;
1319 samples++) {
1320 for (unsigned depth_samples = 2;
1321 depth_samples <= samples; depth_samples++) {
1322 if (!(depth_samples_supported & (1 << depth_samples)))
1323 continue;
1324
1325 for (unsigned storage_samples = 2;
1326 storage_samples <= depth_samples; storage_samples++) {
1327 if (screen->is_format_supported(screen,
1328 PIPE_FORMAT_R8G8B8A8_UNORM,
1329 PIPE_TEXTURE_2D,
1330 samples,
1331 storage_samples,
1332 PIPE_BIND_RENDER_TARGET)) {
1333 unsigned i = consts->NumSupportedMultisampleModes;
1334
1335 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1336 consts->SupportedMultisampleModes[i].NumColorSamples =
1337 samples;
1338 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1339 storage_samples;
1340 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1341 depth_samples;
1342 consts->NumSupportedMultisampleModes++;
1343 }
1344 }
1345 }
1346 }
1347 }
1348 }
1349
1350 if (consts->MaxSamples >= 2) {
1351 /* Real MSAA support */
1352 extensions->EXT_framebuffer_multisample = GL_TRUE;
1353 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1354 }
1355 else if (consts->MaxSamples > 0 &&
1356 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1357 /* fake MSAA support */
1358 consts->FakeSWMSAA = GL_TRUE;
1359 extensions->EXT_framebuffer_multisample = GL_TRUE;
1360 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1361 extensions->ARB_texture_multisample = GL_TRUE;
1362 }
1363
1364 if (consts->MaxDualSourceDrawBuffers > 0 &&
1365 !options->disable_blend_func_extended)
1366 extensions->ARB_blend_func_extended = GL_TRUE;
1367
1368 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1369 extensions->ARB_timer_query) {
1370 extensions->EXT_timer_query = GL_TRUE;
1371 }
1372
1373 if (extensions->ARB_transform_feedback2 &&
1374 extensions->ARB_draw_instanced) {
1375 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1376 }
1377 if (options->force_glsl_extensions_warn)
1378 consts->ForceGLSLExtensionsWarn = 1;
1379
1380 if (options->disable_glsl_line_continuations)
1381 consts->DisableGLSLLineContinuations = 1;
1382
1383 if (options->allow_glsl_extension_directive_midshader)
1384 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1385
1386 if (options->allow_glsl_builtin_const_expression)
1387 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1388
1389 if (options->allow_glsl_relaxed_es)
1390 consts->AllowGLSLRelaxedES = GL_TRUE;
1391
1392 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1393 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1394
1395 consts->MinMapBufferAlignment =
1396 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1397
1398 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1399 if (api == API_OPENGL_COMPAT &&
1400 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1401 extensions->ARB_texture_buffer_object = GL_FALSE;
1402
1403 if (extensions->ARB_texture_buffer_object) {
1404 consts->MaxTextureBufferSize =
1405 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1406 (1u << 31) - 1);
1407 consts->TextureBufferOffsetAlignment =
1408 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1409
1410 if (consts->TextureBufferOffsetAlignment)
1411 extensions->ARB_texture_buffer_range = GL_TRUE;
1412
1413 init_format_extensions(screen, extensions, tbo_rgb32,
1414 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1415 PIPE_BIND_SAMPLER_VIEW);
1416 }
1417
1418 extensions->OES_texture_buffer =
1419 extensions->ARB_texture_buffer_object &&
1420 extensions->ARB_texture_buffer_range &&
1421 extensions->ARB_texture_buffer_object_rgb32 &&
1422 extensions->ARB_shader_image_load_store;
1423
1424 extensions->EXT_framebuffer_sRGB =
1425 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1426 extensions->EXT_sRGB;
1427
1428 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1429 * If the number of available texture indirections is very limited, then we
1430 * prefer to disable varying packing rather than run the risk of varying
1431 * packing preventing a shader from running.
1432 */
1433 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1434 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1435 /* We can't disable varying packing if transform feedback is available,
1436 * because transform feedback code assumes a packed varying layout.
1437 */
1438 if (!extensions->EXT_transform_feedback)
1439 consts->DisableVaryingPacking = GL_TRUE;
1440 }
1441
1442 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1443 consts->DisableTransformFeedbackPacking = GL_TRUE;
1444
1445 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1446 bool coherent_fb_fetch =
1447 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1448
1449 if (max_fb_fetch_rts > 0) {
1450 extensions->KHR_blend_equation_advanced = true;
1451 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1452
1453 if (max_fb_fetch_rts >=
1454 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1455 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1456 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1457 }
1458 }
1459
1460 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1461 if (consts->MaxViewports >= 16) {
1462 if (GLSLVersion >= 400) {
1463 consts->ViewportBounds.Min = -32768.0;
1464 consts->ViewportBounds.Max = 32767.0;
1465 } else {
1466 consts->ViewportBounds.Min = -16384.0;
1467 consts->ViewportBounds.Max = 16383.0;
1468 }
1469 extensions->ARB_viewport_array = GL_TRUE;
1470 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1471 if (extensions->AMD_vertex_shader_layer)
1472 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1473 }
1474
1475 if (extensions->AMD_vertex_shader_layer &&
1476 extensions->AMD_vertex_shader_viewport_index &&
1477 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1478 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1479
1480 /* ARB_framebuffer_no_attachments */
1481 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1482 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1483 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1484 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1485 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1486
1487 /* GL_ARB_ES3_compatibility.
1488 * Check requirements for GLSL ES 3.00.
1489 */
1490 if (GLSLVersion >= 130 &&
1491 extensions->ARB_uniform_buffer_object &&
1492 extensions->NV_primitive_restart &&
1493 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1494 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1495 /* Requirements for ETC2 emulation. */
1496 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1497 PIPE_TEXTURE_2D, 0, 0,
1498 PIPE_BIND_SAMPLER_VIEW) &&
1499 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1500 PIPE_TEXTURE_2D, 0, 0,
1501 PIPE_BIND_SAMPLER_VIEW) &&
1502 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1503 PIPE_TEXTURE_2D, 0, 0,
1504 PIPE_BIND_SAMPLER_VIEW) &&
1505 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1506 PIPE_TEXTURE_2D, 0, 0,
1507 PIPE_BIND_SAMPLER_VIEW) &&
1508 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1509 PIPE_TEXTURE_2D, 0, 0,
1510 PIPE_BIND_SAMPLER_VIEW) &&
1511 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1512 PIPE_TEXTURE_2D, 0, 0,
1513 PIPE_BIND_SAMPLER_VIEW)) {
1514 extensions->ARB_ES3_compatibility = GL_TRUE;
1515 }
1516
1517 #ifdef HAVE_ST_VDPAU
1518 if (screen->get_video_param &&
1519 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1520 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1521 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1522 extensions->NV_vdpau_interop = GL_TRUE;
1523 }
1524 #endif
1525
1526 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1527 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1528 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1529 }
1530
1531 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1532 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1533 extensions->GREMEDY_string_marker = GL_TRUE;
1534
1535 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1536 int compute_supported_irs =
1537 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1538 PIPE_SHADER_CAP_SUPPORTED_IRS);
1539 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1540 (1 << PIPE_SHADER_IR_NIR))) {
1541 enum pipe_shader_ir ir =
1542 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1543 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1544 uint64_t grid_size[3], block_size[3];
1545 uint64_t max_local_size, max_threads_per_block;
1546
1547 screen->get_compute_param(screen, ir,
1548 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1549 screen->get_compute_param(screen, ir,
1550 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1551 screen->get_compute_param(screen, ir,
1552 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1553 &max_threads_per_block);
1554 screen->get_compute_param(screen, ir,
1555 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1556 &max_local_size);
1557
1558 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1559 consts->MaxComputeSharedMemorySize = max_local_size;
1560
1561 for (i = 0; i < 3; i++) {
1562 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1563 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1564 }
1565
1566 extensions->ARB_compute_shader =
1567 extensions->ARB_shader_image_load_store &&
1568 extensions->ARB_shader_atomic_counters;
1569
1570 if (extensions->ARB_compute_shader) {
1571 uint64_t max_variable_threads_per_block = 0;
1572
1573 screen->get_compute_param(screen, ir,
1574 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1575 &max_variable_threads_per_block);
1576
1577 for (i = 0; i < 3; i++) {
1578 /* Clamp the values to avoid having a local work group size
1579 * greater than the maximum number of invocations.
1580 */
1581 consts->MaxComputeVariableGroupSize[i] =
1582 MIN2(consts->MaxComputeWorkGroupSize[i],
1583 max_variable_threads_per_block);
1584 }
1585 consts->MaxComputeVariableGroupInvocations =
1586 max_variable_threads_per_block;
1587
1588 extensions->ARB_compute_variable_group_size =
1589 max_variable_threads_per_block > 0;
1590 }
1591 }
1592 }
1593
1594 extensions->ARB_texture_float =
1595 extensions->OES_texture_half_float &&
1596 extensions->OES_texture_float;
1597
1598 if (extensions->EXT_texture_filter_anisotropic &&
1599 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1600 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1601
1602 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1603
1604 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1605 * there's no clean way of telling whether we would support ES 3.1 from
1606 * here, so copy the condition from compute_version_es2 here. A lot of
1607 * these are redunant, but simpler to just have a (near-)exact copy here.
1608 */
1609 extensions->ARB_ES3_1_compatibility =
1610 extensions->ARB_ES3_compatibility &&
1611 extensions->ARB_arrays_of_arrays &&
1612 extensions->ARB_compute_shader &&
1613 extensions->ARB_draw_indirect &&
1614 extensions->ARB_explicit_uniform_location &&
1615 extensions->ARB_framebuffer_no_attachments &&
1616 extensions->ARB_shader_atomic_counters &&
1617 extensions->ARB_shader_image_load_store &&
1618 extensions->ARB_shader_image_size &&
1619 extensions->ARB_shader_storage_buffer_object &&
1620 extensions->ARB_shading_language_packing &&
1621 extensions->ARB_stencil_texturing &&
1622 extensions->ARB_texture_multisample &&
1623 extensions->ARB_gpu_shader5 &&
1624 extensions->EXT_shader_integer_mix;
1625
1626 extensions->OES_texture_cube_map_array =
1627 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1628 extensions->OES_geometry_shader &&
1629 extensions->ARB_texture_cube_map_array;
1630
1631 extensions->OES_viewport_array =
1632 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1633 extensions->OES_geometry_shader &&
1634 extensions->ARB_viewport_array;
1635
1636 extensions->OES_primitive_bounding_box =
1637 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1638
1639 consts->NoPrimitiveBoundingBoxOutput = true;
1640
1641 extensions->ANDROID_extension_pack_es31a =
1642 extensions->KHR_texture_compression_astc_ldr &&
1643 extensions->KHR_blend_equation_advanced &&
1644 extensions->OES_sample_variables &&
1645 extensions->ARB_shader_image_load_store &&
1646 extensions->ARB_texture_stencil8 &&
1647 extensions->ARB_texture_multisample &&
1648 extensions->OES_copy_image &&
1649 extensions->ARB_draw_buffers_blend &&
1650 extensions->OES_geometry_shader &&
1651 extensions->ARB_gpu_shader5 &&
1652 extensions->OES_primitive_bounding_box &&
1653 extensions->ARB_tessellation_shader &&
1654 extensions->ARB_texture_border_clamp &&
1655 extensions->OES_texture_buffer &&
1656 extensions->OES_texture_cube_map_array &&
1657 extensions->EXT_texture_sRGB_decode;
1658
1659 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1660 * before overall versions are selected. Also it's actually a subset of ES
1661 * 3.2, since it doesn't require ASTC or advanced blending.
1662 */
1663 extensions->ARB_ES3_2_compatibility =
1664 extensions->ARB_ES3_1_compatibility &&
1665 extensions->KHR_robustness &&
1666 extensions->ARB_copy_image &&
1667 extensions->ARB_draw_buffers_blend &&
1668 extensions->ARB_draw_elements_base_vertex &&
1669 extensions->OES_geometry_shader &&
1670 extensions->ARB_gpu_shader5 &&
1671 extensions->ARB_sample_shading &&
1672 extensions->ARB_tessellation_shader &&
1673 extensions->ARB_texture_border_clamp &&
1674 extensions->OES_texture_buffer &&
1675 extensions->ARB_texture_cube_map_array &&
1676 extensions->ARB_texture_stencil8 &&
1677 extensions->ARB_texture_multisample;
1678
1679 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1680 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1681 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1682 float max_dilate;
1683 bool pre_snap_triangles, pre_snap_points_lines;
1684
1685 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1686
1687 pre_snap_triangles =
1688 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1689 pre_snap_points_lines =
1690 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1691
1692 extensions->NV_conservative_raster =
1693 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1694
1695 if (extensions->NV_conservative_raster) {
1696 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1697 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1698 extensions->NV_conservative_raster_pre_snap =
1699 pre_snap_triangles && pre_snap_points_lines;
1700 }
1701 }
1702
1703 if (extensions->ARB_gl_spirv) {
1704 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1705
1706 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1707 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1708 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1709 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1710 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1711 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1712 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1713 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1714 spirv_caps->variable_pointers =
1715 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1716 spirv_caps->integer_functions2 = extensions->INTEL_shader_integer_functions2;
1717
1718 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1719 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1720 }
1721
1722 consts->AllowDrawOutOfOrder = options->allow_draw_out_of_order;
1723 }