projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
st/mesa: expose more SPIR-V capabilities
[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
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 #include "util/u_memory.h"
43
44 #include "st_context.h"
45 #include "st_debug.h"
46 #include "st_extensions.h"
47 #include "st_format.h"
48
49
50 /*
51 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
52 * avoid evaluating arguments (which are often function calls) more than once.
53 */
54
55 static unsigned _min(unsigned a, unsigned b)
56 {
57 return (a < b) ? a : b;
58 }
59
60 static float _maxf(float a, float b)
61 {
62 return (a > b) ? a : b;
63 }
64
65 static int _clamp(int a, int min, int max)
66 {
67 if (a < min)
68 return min;
69 else if (a > max)
70 return max;
71 else
72 return a;
73 }
74
75
76 /**
77 * Query driver to get implementation limits.
78 * Note that we have to limit/clamp against Mesa's internal limits too.
79 */
80 void st_init_limits(struct pipe_screen *screen,
81 struct gl_constants *c, struct gl_extensions *extensions)
82 {
83 int supported_irs;
84 unsigned sh;
85 bool can_ubo = true;
86 int temp;
87
88 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
89 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
90
91 c->Max3DTextureLevels
92 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
93 MAX_3D_TEXTURE_LEVELS);
94
95 c->MaxCubeTextureLevels
96 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
97 MAX_CUBE_TEXTURE_LEVELS);
98
99 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
100
101 c->MaxArrayTextureLayers
102 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
103
104 /* Define max viewport size and max renderbuffer size in terms of
105 * max texture size (note: max tex RECT size = max tex 2D size).
106 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
107 */
108 c->MaxViewportWidth =
109 c->MaxViewportHeight =
110 c->MaxRenderbufferSize = c->MaxTextureRectSize;
111
112 c->SubPixelBits =
113 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
114 c->ViewportSubpixelBits =
115 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
116
117 c->MaxDrawBuffers = c->MaxColorAttachments =
118 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
119 1, MAX_DRAW_BUFFERS);
120
121 c->MaxDualSourceDrawBuffers =
122 _clamp(screen->get_param(screen,
123 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
124 0, MAX_DRAW_BUFFERS);
125
126 c->MaxLineWidth =
127 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
128 c->MaxLineWidthAA =
129 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
130
131 c->MaxPointSize =
132 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
133 c->MaxPointSizeAA =
134 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
135
136 c->MinPointSize = 1.0f;
137 c->MinPointSizeAA = 1.0f;
138
139 c->MaxTextureMaxAnisotropy =
140 _maxf(2.0f,
141 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
142
143 c->MaxTextureLodBias =
144 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
145
146 c->QuadsFollowProvokingVertexConvention =
147 screen->get_param(screen,
148 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
149
150 c->MaxUniformBlockSize =
151 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
152 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
153 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
154 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
155 */
156 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
157
158 if (c->MaxUniformBlockSize < 16384) {
159 can_ubo = false;
160 }
161
162 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
163 struct gl_shader_compiler_options *options;
164 struct gl_program_constants *pc;
165 const nir_shader_compiler_options *nir_options = NULL;
166
167 bool prefer_nir = PIPE_SHADER_IR_NIR ==
168 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_PREFERRED_IR);
169
170 if (screen->get_compiler_options && prefer_nir) {
171 nir_options = (const nir_shader_compiler_options *)
172 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
173 }
174
175 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
176 pc = &c->Program[stage];
177 options = &c->ShaderCompilerOptions[stage];
178 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
179
180 if (sh == PIPE_SHADER_COMPUTE) {
181 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
182 continue;
183 supported_irs =
184 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
185 if (!(supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
186 (1 << PIPE_SHADER_IR_NIR))))
187 continue;
188 }
189
190 pc->MaxTextureImageUnits =
191 _min(screen->get_shader_param(screen, sh,
192 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
193 MAX_TEXTURE_IMAGE_UNITS);
194
195 pc->MaxInstructions =
196 pc->MaxNativeInstructions =
197 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
198 pc->MaxAluInstructions =
199 pc->MaxNativeAluInstructions =
200 screen->get_shader_param(screen, sh,
201 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
202 pc->MaxTexInstructions =
203 pc->MaxNativeTexInstructions =
204 screen->get_shader_param(screen, sh,
205 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
206 pc->MaxTexIndirections =
207 pc->MaxNativeTexIndirections =
208 screen->get_shader_param(screen, sh,
209 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
210 pc->MaxAttribs =
211 pc->MaxNativeAttribs =
212 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
213 pc->MaxTemps =
214 pc->MaxNativeTemps =
215 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
216 pc->MaxAddressRegs =
217 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
218
219 pc->MaxUniformComponents =
220 screen->get_shader_param(screen, sh,
221 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / 4;
222 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
223 MAX_UNIFORMS * 4);
224
225 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
226 * This gives us a limit of 4096 values - but we may need to generate
227 * internal values in addition to what the source program uses. So, we
228 * drop the limit one step lower, to 2048, to be safe.
229 */
230 pc->MaxParameters =
231 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
232 pc->MaxInputComponents =
233 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
234 pc->MaxOutputComponents =
235 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
236
237
238 pc->MaxUniformBlocks =
239 screen->get_shader_param(screen, sh,
240 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
241 if (pc->MaxUniformBlocks)
242 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
243 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
244
245 pc->MaxCombinedUniformComponents =
246 pc->MaxUniformComponents +
247 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
248
249 pc->MaxShaderStorageBlocks =
250 screen->get_shader_param(screen, sh,
251 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
252
253 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
254 if (temp) {
255 /*
256 * for separate atomic counters get the actual hw limits
257 * per stage on atomic counters and buffers
258 */
259 pc->MaxAtomicCounters = temp;
260 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
261 } else if (pc->MaxShaderStorageBlocks) {
262 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
263 /*
264 * without separate atomic counters, reserve half of the available
265 * SSBOs for atomic buffers, and the other half for normal SSBOs.
266 */
267 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
268 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
269 }
270 pc->MaxImageUniforms = screen->get_shader_param(
271 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
272
273 /* Gallium doesn't really care about local vs. env parameters so use the
274 * same limits.
275 */
276 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
277 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
278
279 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
280 pc->LowInt.RangeMin = 31;
281 pc->LowInt.RangeMax = 30;
282 pc->LowInt.Precision = 0;
283 pc->MediumInt = pc->HighInt = pc->LowInt;
284 }
285
286 /* TODO: make these more fine-grained if anyone needs it */
287 options->MaxIfDepth =
288 screen->get_shader_param(screen, sh,
289 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
290 options->EmitNoLoops =
291 !screen->get_shader_param(screen, sh,
292 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
293 options->EmitNoMainReturn =
294 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
295
296 options->EmitNoCont =
297 !screen->get_shader_param(screen, sh,
298 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
299
300 options->EmitNoIndirectInput =
301 !screen->get_shader_param(screen, sh,
302 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
303 options->EmitNoIndirectOutput =
304 !screen->get_shader_param(screen, sh,
305 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
306 options->EmitNoIndirectTemp =
307 !screen->get_shader_param(screen, sh,
308 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
309 options->EmitNoIndirectUniform =
310 !screen->get_shader_param(screen, sh,
311 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
312
313 if (pc->MaxNativeInstructions &&
314 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
315 can_ubo = false;
316 }
317
318 if (options->EmitNoLoops)
319 options->MaxUnrollIterations =
320 MIN2(screen->get_shader_param(screen, sh,
321 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
322 65536);
323 else
324 options->MaxUnrollIterations =
325 screen->get_shader_param(screen, sh,
326 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
327
328 if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
329 options->LowerCombinedClipCullDistance = true;
330
331 /* NIR can do the lowering on our behalf and we'll get better results
332 * because it can actually optimize SSBO access.
333 */
334 options->LowerBufferInterfaceBlocks = !prefer_nir;
335
336 if (sh == MESA_SHADER_VERTEX) {
337 if (screen->get_param(screen, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED))
338 options->LowerBuiltinVariablesXfb |= VARYING_BIT_POS;
339 if (screen->get_param(screen, PIPE_CAP_PSIZ_CLAMPED))
340 options->LowerBuiltinVariablesXfb |= VARYING_BIT_PSIZ;
341 }
342
343 /* Initialize lower precision shader compiler option based on
344 * the value of PIPE_SHADER_CAP_FP16.
345 */
346 options->LowerPrecision =
347 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_FP16);
348 }
349
350 c->MaxUserAssignableUniformLocations =
351 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
352 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
353 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
354 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
355 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
356
357 c->GLSLOptimizeConservatively =
358 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
359 c->GLSLLowerConstArrays =
360 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
361 c->GLSLTessLevelsAsInputs =
362 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
363 c->LowerTessLevel =
364 !screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS);
365 c->LowerCsDerivedVariables =
366 !screen->get_param(screen, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED);
367 c->PrimitiveRestartForPatches =
368 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
369
370 c->MaxCombinedTextureImageUnits =
371 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
372 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
373 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
374 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
375 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
376 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
377 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
378
379 /* This depends on program constants. */
380 c->MaxTextureCoordUnits
381 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
382 MAX_TEXTURE_COORD_UNITS);
383
384 c->MaxTextureUnits =
385 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
386 c->MaxTextureCoordUnits);
387
388 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
389 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
390
391 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
392 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
393 c->MaxGeometryOutputVertices =
394 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
395 c->MaxGeometryTotalOutputComponents =
396 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
397 c->MaxGeometryShaderInvocations =
398 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
399 c->MaxTessPatchComponents =
400 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
401 MAX_VARYING) * 4;
402
403 c->MinProgramTexelOffset =
404 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
405 c->MaxProgramTexelOffset =
406 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
407
408 c->MaxProgramTextureGatherComponents =
409 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
410 c->MinProgramTextureGatherOffset =
411 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
412 c->MaxProgramTextureGatherOffset =
413 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
414
415 c->MaxTransformFeedbackBuffers =
416 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
417 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
418 MAX_FEEDBACK_BUFFERS);
419 c->MaxTransformFeedbackSeparateComponents =
420 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
421 c->MaxTransformFeedbackInterleavedComponents =
422 screen->get_param(screen,
423 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
424 c->MaxVertexStreams =
425 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
426
427 /* The vertex stream must fit into pipe_stream_output_info::stream */
428 assert(c->MaxVertexStreams <= 4);
429
430 c->MaxVertexAttribStride
431 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
432
433 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
434 * is only 16 bits.
435 */
436 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
437 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
438
439 c->StripTextureBorder = GL_TRUE;
440
441 c->GLSLSkipStrictMaxUniformLimitCheck =
442 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
443
444 c->UniformBufferOffsetAlignment =
445 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
446
447 if (can_ubo) {
448 extensions->ARB_uniform_buffer_object = GL_TRUE;
449 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
450 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
451 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
452 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
453 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
454 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
455 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
456 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
457 }
458
459 c->GLSLFragCoordIsSysVal =
460 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
461 c->GLSLPointCoordIsSysVal =
462 screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
463 c->GLSLFrontFacingIsSysVal =
464 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
465
466 /* GL_ARB_get_program_binary */
467 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
468 c->NumProgramBinaryFormats = 1;
469
470 c->MaxAtomicBufferBindings =
471 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
472 c->MaxAtomicBufferSize =
473 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
474
475 c->MaxCombinedAtomicBuffers =
476 MIN2(screen->get_param(screen,
477 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
478 MAX_COMBINED_ATOMIC_BUFFERS);
479 if (!c->MaxCombinedAtomicBuffers) {
480 c->MaxCombinedAtomicBuffers =
481 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
482 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
483 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
484 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
485 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
486 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
487 }
488
489 c->MaxCombinedAtomicCounters =
490 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
491 if (!c->MaxCombinedAtomicCounters)
492 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
493
494 if (c->MaxCombinedAtomicBuffers > 0) {
495 extensions->ARB_shader_atomic_counters = GL_TRUE;
496 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
497 }
498
499 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
500 c->ShaderStorageBufferOffsetAlignment =
501 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
502 if (c->ShaderStorageBufferOffsetAlignment) {
503 c->MaxCombinedShaderStorageBlocks =
504 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
505 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
506 if (!c->MaxCombinedShaderStorageBlocks) {
507 c->MaxCombinedShaderStorageBlocks =
508 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
509 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
510 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
511 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
512 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
513 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
514 }
515 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
516
517 c->MaxCombinedShaderOutputResources +=
518 c->MaxCombinedShaderStorageBlocks;
519 c->MaxShaderStorageBlockSize =
520 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
521 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
522 }
523
524 c->MaxCombinedImageUniforms =
525 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
526 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
527 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
528 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
529 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
530 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
531 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
532 c->MaxImageUnits = MAX_IMAGE_UNITS;
533 if (c->MaxCombinedImageUniforms) {
534 extensions->ARB_shader_image_load_store = GL_TRUE;
535 extensions->ARB_shader_image_size = GL_TRUE;
536 }
537
538 /* ARB_framebuffer_no_attachments */
539 c->MaxFramebufferWidth = c->MaxViewportWidth;
540 c->MaxFramebufferHeight = c->MaxViewportHeight;
541 /* NOTE: we cheat here a little by assuming that
542 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
543 * number of layers as we need, although we technically
544 * could have more the generality is not really useful
545 * in practicality.
546 */
547 c->MaxFramebufferLayers =
548 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
549
550 c->MaxWindowRectangles =
551 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
552
553 c->SparseBufferPageSize =
554 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
555
556 c->AllowMappedBuffersDuringExecution =
557 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
558
559 c->BufferCreateMapUnsynchronizedThreadSafe =
560 screen->get_param(screen, PIPE_CAP_MAP_UNSYNCHRONIZED_THREAD_SAFE);
561
562 c->UseSTD430AsDefaultPacking =
563 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
564
565 c->MaxSubpixelPrecisionBiasBits =
566 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
567
568 c->ConservativeRasterDilateRange[0] =
569 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
570 c->ConservativeRasterDilateRange[1] =
571 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
572 c->ConservativeRasterDilateGranularity =
573 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
574
575 /* limit the max combined shader output resources to a driver limit */
576 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
577 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
578 c->MaxCombinedShaderOutputResources = temp;
579
580 c->VertexBufferOffsetIsInt32 =
581 screen->get_param(screen, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET);
582
583 c->MultiDrawWithUserIndices =
584 screen->get_param(screen, PIPE_CAP_DRAW_INFO_START_WITH_USER_INDICES);
585
586 c->glBeginEndBufferSize =
587 screen->get_param(screen, PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE);
588 }
589
590
591 /**
592 * Given a member \c x of struct gl_extensions, return offset of
593 * \c x in bytes.
594 */
595 #define o(x) offsetof(struct gl_extensions, x)
596
597
598 struct st_extension_cap_mapping {
599 int extension_offset;
600 int cap;
601 };
602
603 struct st_extension_format_mapping {
604 int extension_offset[2];
605 enum pipe_format format[32];
606
607 /* If TRUE, at least one format must be supported for the extensions to be
608 * advertised. If FALSE, all the formats must be supported. */
609 GLboolean need_at_least_one;
610 };
611
612 /**
613 * Enable extensions if certain pipe formats are supported by the driver.
614 * What extensions will be enabled and what formats must be supported is
615 * described by the array of st_extension_format_mapping.
616 *
617 * target and bind_flags are passed to is_format_supported.
618 */
619 static void
620 init_format_extensions(struct pipe_screen *screen,
621 struct gl_extensions *extensions,
622 const struct st_extension_format_mapping *mapping,
623 unsigned num_mappings,
624 enum pipe_texture_target target,
625 unsigned bind_flags)
626 {
627 GLboolean *extension_table = (GLboolean *) extensions;
628 unsigned i;
629 int j;
630 int num_formats = ARRAY_SIZE(mapping->format);
631 int num_ext = ARRAY_SIZE(mapping->extension_offset);
632
633 for (i = 0; i < num_mappings; i++) {
634 int num_supported = 0;
635
636 /* Examine each format in the list. */
637 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
638 if (screen->is_format_supported(screen, mapping[i].format[j],
639 target, 0, 0, bind_flags)) {
640 num_supported++;
641 }
642 }
643
644 if (!num_supported ||
645 (!mapping[i].need_at_least_one && num_supported != j)) {
646 continue;
647 }
648
649 /* Enable all extensions in the list. */
650 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
651 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
652 }
653 }
654
655
656 /**
657 * Given a list of formats and bind flags, return the maximum number
658 * of samples supported by any of those formats.
659 */
660 static unsigned
661 get_max_samples_for_formats(struct pipe_screen *screen,
662 unsigned num_formats,
663 const enum pipe_format *formats,
664 unsigned max_samples,
665 unsigned bind)
666 {
667 unsigned i, f;
668
669 for (i = max_samples; i > 0; --i) {
670 for (f = 0; f < num_formats; f++) {
671 if (screen->is_format_supported(screen, formats[f],
672 PIPE_TEXTURE_2D, i, i, bind)) {
673 return i;
674 }
675 }
676 }
677 return 0;
678 }
679
680 static unsigned
681 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
682 unsigned num_formats,
683 const enum pipe_format *formats,
684 unsigned max_samples,
685 unsigned num_storage_samples,
686 unsigned bind)
687 {
688 unsigned i, f;
689
690 for (i = max_samples; i > 0; --i) {
691 for (f = 0; f < num_formats; f++) {
692 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
693 i, num_storage_samples, bind)) {
694 return i;
695 }
696 }
697 }
698 return 0;
699 }
700
701 /**
702 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
703 * which GL extensions are supported.
704 * Quite a few extensions are always supported because they are standard
705 * features or can be built on top of other gallium features.
706 * Some fine tuning may still be needed.
707 */
708 void st_init_extensions(struct pipe_screen *screen,
709 struct gl_constants *consts,
710 struct gl_extensions *extensions,
711 struct st_config_options *options,
712 gl_api api)
713 {
714 unsigned i;
715 GLboolean *extension_table = (GLboolean *) extensions;
716
717 static const struct st_extension_cap_mapping cap_mapping[] = {
718 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
719 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
720 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
721 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
722 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
723 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
724 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
725 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
726 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
727 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
728 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
729 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
730 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
731 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
732 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
733 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
734 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
735 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
736 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
737 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
738 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
739 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
740 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
741 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
742 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
743 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
744 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
745 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
746 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
747 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
748 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
749 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
750 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
751 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
752 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
753 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
754 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
755 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
756 { o(EXT_shader_image_load_store), PIPE_CAP_TGSI_ATOMINC_WRAP },
757 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
758 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
759 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
760 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
761 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
762 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
763 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
764 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
765 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
766 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
767 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
768 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
769 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
770 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
771 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
772 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
773 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
774 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
775 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
776
777 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
778 { o(EXT_demote_to_helper_invocation), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION },
779 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
780 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
781 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
782 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
783 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
784 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
785 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
786 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
787 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
788 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
789 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
790 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
791 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
792 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
793 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
794 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
795
796 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
797 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
798 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
799 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
800 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
801 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
802 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
803 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
804 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
805 { o(NV_alpha_to_coverage_dither_control), PIPE_CAP_ALPHA_TO_COVERAGE_DITHER_CONTROL },
806 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
807 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
808 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
809 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
810 { o(NV_shader_atomic_float), PIPE_CAP_TGSI_ATOMFADD },
811 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
812 { o(NV_viewport_array2), PIPE_CAP_VIEWPORT_MASK },
813 { o(NV_viewport_swizzle), PIPE_CAP_VIEWPORT_SWIZZLE },
814 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
815 /* GL_NV_point_sprite is not supported by gallium because we don't
816 * support the GL_POINT_SPRITE_R_MODE_NV option. */
817
818 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
819 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
820 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
821 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
822 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP, },
823 };
824
825 /* Required: render target and sampler support */
826 static const struct st_extension_format_mapping rendertarget_mapping[] = {
827 { { o(OES_texture_float) },
828 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
829
830 { { o(OES_texture_half_float) },
831 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
832
833 { { o(ARB_texture_rgb10_a2ui) },
834 { PIPE_FORMAT_R10G10B10A2_UINT,
835 PIPE_FORMAT_B10G10R10A2_UINT },
836 GL_TRUE }, /* at least one format must be supported */
837
838 { { o(EXT_sRGB) },
839 { PIPE_FORMAT_A8B8G8R8_SRGB,
840 PIPE_FORMAT_B8G8R8A8_SRGB,
841 PIPE_FORMAT_R8G8B8A8_SRGB },
842 GL_TRUE }, /* at least one format must be supported */
843
844 { { o(EXT_packed_float) },
845 { PIPE_FORMAT_R11G11B10_FLOAT } },
846
847 { { o(EXT_texture_integer) },
848 { PIPE_FORMAT_R32G32B32A32_UINT,
849 PIPE_FORMAT_R32G32B32A32_SINT } },
850
851 { { o(ARB_texture_rg) },
852 { PIPE_FORMAT_R8_UNORM,
853 PIPE_FORMAT_R8G8_UNORM } },
854
855 { { o(EXT_texture_norm16) },
856 { PIPE_FORMAT_R16_UNORM,
857 PIPE_FORMAT_R16G16_UNORM,
858 PIPE_FORMAT_R16G16B16A16_UNORM } },
859
860 { { o(EXT_render_snorm) },
861 { PIPE_FORMAT_R8_SNORM,
862 PIPE_FORMAT_R8G8_SNORM,
863 PIPE_FORMAT_R8G8B8A8_SNORM,
864 PIPE_FORMAT_R16_SNORM,
865 PIPE_FORMAT_R16G16_SNORM,
866 PIPE_FORMAT_R16G16B16A16_SNORM } },
867 };
868
869 /* Required: render target, sampler, and blending */
870 static const struct st_extension_format_mapping rt_blendable[] = {
871 { { o(EXT_float_blend) },
872 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
873 };
874
875 /* Required: depth stencil and sampler support */
876 static const struct st_extension_format_mapping depthstencil_mapping[] = {
877 { { o(ARB_depth_buffer_float) },
878 { PIPE_FORMAT_Z32_FLOAT,
879 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
880 };
881
882 /* Required: sampler support */
883 static const struct st_extension_format_mapping texture_mapping[] = {
884 { { o(ARB_texture_compression_rgtc) },
885 { PIPE_FORMAT_RGTC1_UNORM,
886 PIPE_FORMAT_RGTC1_SNORM,
887 PIPE_FORMAT_RGTC2_UNORM,
888 PIPE_FORMAT_RGTC2_SNORM } },
889
890 { { o(EXT_texture_compression_latc) },
891 { PIPE_FORMAT_LATC1_UNORM,
892 PIPE_FORMAT_LATC1_SNORM,
893 PIPE_FORMAT_LATC2_UNORM,
894 PIPE_FORMAT_LATC2_SNORM } },
895
896 { { o(EXT_texture_compression_s3tc),
897 o(ANGLE_texture_compression_dxt) },
898 { PIPE_FORMAT_DXT1_RGB,
899 PIPE_FORMAT_DXT1_RGBA,
900 PIPE_FORMAT_DXT3_RGBA,
901 PIPE_FORMAT_DXT5_RGBA } },
902
903 { { o(EXT_texture_compression_s3tc_srgb) },
904 { PIPE_FORMAT_DXT1_SRGB,
905 PIPE_FORMAT_DXT1_SRGBA,
906 PIPE_FORMAT_DXT3_SRGBA,
907 PIPE_FORMAT_DXT5_SRGBA } },
908
909 { { o(ARB_texture_compression_bptc) },
910 { PIPE_FORMAT_BPTC_RGBA_UNORM,
911 PIPE_FORMAT_BPTC_SRGBA,
912 PIPE_FORMAT_BPTC_RGB_FLOAT,
913 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
914
915 { { o(TDFX_texture_compression_FXT1) },
916 { PIPE_FORMAT_FXT1_RGB,
917 PIPE_FORMAT_FXT1_RGBA } },
918
919 { { o(KHR_texture_compression_astc_ldr),
920 o(KHR_texture_compression_astc_sliced_3d) },
921 { PIPE_FORMAT_ASTC_4x4,
922 PIPE_FORMAT_ASTC_5x4,
923 PIPE_FORMAT_ASTC_5x5,
924 PIPE_FORMAT_ASTC_6x5,
925 PIPE_FORMAT_ASTC_6x6,
926 PIPE_FORMAT_ASTC_8x5,
927 PIPE_FORMAT_ASTC_8x6,
928 PIPE_FORMAT_ASTC_8x8,
929 PIPE_FORMAT_ASTC_10x5,
930 PIPE_FORMAT_ASTC_10x6,
931 PIPE_FORMAT_ASTC_10x8,
932 PIPE_FORMAT_ASTC_10x10,
933 PIPE_FORMAT_ASTC_12x10,
934 PIPE_FORMAT_ASTC_12x12,
935 PIPE_FORMAT_ASTC_4x4_SRGB,
936 PIPE_FORMAT_ASTC_5x4_SRGB,
937 PIPE_FORMAT_ASTC_5x5_SRGB,
938 PIPE_FORMAT_ASTC_6x5_SRGB,
939 PIPE_FORMAT_ASTC_6x6_SRGB,
940 PIPE_FORMAT_ASTC_8x5_SRGB,
941 PIPE_FORMAT_ASTC_8x6_SRGB,
942 PIPE_FORMAT_ASTC_8x8_SRGB,
943 PIPE_FORMAT_ASTC_10x5_SRGB,
944 PIPE_FORMAT_ASTC_10x6_SRGB,
945 PIPE_FORMAT_ASTC_10x8_SRGB,
946 PIPE_FORMAT_ASTC_10x10_SRGB,
947 PIPE_FORMAT_ASTC_12x10_SRGB,
948 PIPE_FORMAT_ASTC_12x12_SRGB } },
949
950 /* ASTC software fallback support. */
951 { { o(KHR_texture_compression_astc_ldr),
952 o(KHR_texture_compression_astc_sliced_3d) },
953 { PIPE_FORMAT_R8G8B8A8_UNORM,
954 PIPE_FORMAT_R8G8B8A8_SRGB } },
955
956 { { o(EXT_texture_shared_exponent) },
957 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
958
959 { { o(EXT_texture_snorm) },
960 { PIPE_FORMAT_R8G8B8A8_SNORM } },
961
962 { { o(EXT_texture_sRGB),
963 o(EXT_texture_sRGB_decode) },
964 { PIPE_FORMAT_A8B8G8R8_SRGB,
965 PIPE_FORMAT_B8G8R8A8_SRGB,
966 PIPE_FORMAT_A8R8G8B8_SRGB,
967 PIPE_FORMAT_R8G8B8A8_SRGB},
968 GL_TRUE }, /* at least one format must be supported */
969
970 { { o(EXT_texture_sRGB_R8) },
971 { PIPE_FORMAT_R8_SRGB },
972 GL_TRUE },
973
974 { { o(EXT_texture_type_2_10_10_10_REV) },
975 { PIPE_FORMAT_R10G10B10A2_UNORM,
976 PIPE_FORMAT_B10G10R10A2_UNORM },
977 GL_TRUE }, /* at least one format must be supported */
978
979 { { o(ATI_texture_compression_3dc) },
980 { PIPE_FORMAT_LATC2_UNORM } },
981
982 { { o(MESA_ycbcr_texture) },
983 { PIPE_FORMAT_UYVY,
984 PIPE_FORMAT_YUYV },
985 GL_TRUE }, /* at least one format must be supported */
986
987 { { o(OES_compressed_ETC1_RGB8_texture) },
988 { PIPE_FORMAT_ETC1_RGB8,
989 PIPE_FORMAT_R8G8B8A8_UNORM },
990 GL_TRUE }, /* at least one format must be supported */
991
992 { { o(ARB_stencil_texturing),
993 o(ARB_texture_stencil8) },
994 { PIPE_FORMAT_X24S8_UINT,
995 PIPE_FORMAT_S8X24_UINT },
996 GL_TRUE }, /* at least one format must be supported */
997
998 { { o(AMD_compressed_ATC_texture) },
999 { PIPE_FORMAT_ATC_RGB,
1000 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
1001 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
1002 };
1003
1004 /* Required: vertex fetch support. */
1005 static const struct st_extension_format_mapping vertex_mapping[] = {
1006 { { o(EXT_vertex_array_bgra) },
1007 { PIPE_FORMAT_B8G8R8A8_UNORM } },
1008 { { o(ARB_vertex_type_2_10_10_10_rev) },
1009 { PIPE_FORMAT_R10G10B10A2_UNORM,
1010 PIPE_FORMAT_B10G10R10A2_UNORM,
1011 PIPE_FORMAT_R10G10B10A2_SNORM,
1012 PIPE_FORMAT_B10G10R10A2_SNORM,
1013 PIPE_FORMAT_R10G10B10A2_USCALED,
1014 PIPE_FORMAT_B10G10R10A2_USCALED,
1015 PIPE_FORMAT_R10G10B10A2_SSCALED,
1016 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1017 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1018 { PIPE_FORMAT_R11G11B10_FLOAT } },
1019 };
1020
1021 static const struct st_extension_format_mapping tbo_rgb32[] = {
1022 { {o(ARB_texture_buffer_object_rgb32) },
1023 { PIPE_FORMAT_R32G32B32_FLOAT,
1024 PIPE_FORMAT_R32G32B32_UINT,
1025 PIPE_FORMAT_R32G32B32_SINT,
1026 } },
1027 };
1028
1029 /*
1030 * Extensions that are supported by all Gallium drivers:
1031 */
1032 extensions->ARB_ES2_compatibility = GL_TRUE;
1033 extensions->ARB_depth_texture = GL_TRUE;
1034 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
1035 extensions->ARB_explicit_attrib_location = GL_TRUE;
1036 extensions->ARB_explicit_uniform_location = GL_TRUE;
1037 extensions->ARB_fragment_coord_conventions = GL_TRUE;
1038 extensions->ARB_fragment_program = GL_TRUE;
1039 extensions->ARB_fragment_shader = GL_TRUE;
1040 extensions->ARB_half_float_vertex = GL_TRUE;
1041 extensions->ARB_internalformat_query = GL_TRUE;
1042 extensions->ARB_internalformat_query2 = GL_TRUE;
1043 extensions->ARB_map_buffer_range = GL_TRUE;
1044 extensions->ARB_sync = GL_TRUE;
1045 extensions->ARB_texture_border_clamp = GL_TRUE;
1046 extensions->ARB_texture_cube_map = GL_TRUE;
1047 extensions->ARB_texture_env_combine = GL_TRUE;
1048 extensions->ARB_texture_env_crossbar = GL_TRUE;
1049 extensions->ARB_texture_env_dot3 = GL_TRUE;
1050 extensions->ARB_vertex_program = GL_TRUE;
1051 extensions->ARB_vertex_shader = GL_TRUE;
1052
1053 extensions->EXT_blend_color = GL_TRUE;
1054 extensions->EXT_blend_func_separate = GL_TRUE;
1055 extensions->EXT_blend_minmax = GL_TRUE;
1056 extensions->EXT_EGL_image_storage = GL_TRUE;
1057 extensions->EXT_gpu_program_parameters = GL_TRUE;
1058 extensions->EXT_pixel_buffer_object = GL_TRUE;
1059 extensions->EXT_point_parameters = GL_TRUE;
1060 extensions->EXT_provoking_vertex = GL_TRUE;
1061 extensions->EXT_stencil_two_side = GL_TRUE;
1062 extensions->EXT_texture_env_dot3 = GL_TRUE;
1063
1064 extensions->ATI_fragment_shader = GL_TRUE;
1065 extensions->ATI_texture_env_combine3 = GL_TRUE;
1066
1067 extensions->MESA_framebuffer_flip_y = GL_TRUE;
1068 extensions->MESA_pack_invert = GL_TRUE;
1069
1070 extensions->NV_copy_image = GL_TRUE;
1071 extensions->NV_fog_distance = GL_TRUE;
1072 extensions->NV_texture_env_combine4 = GL_TRUE;
1073 extensions->NV_texture_rectangle = GL_TRUE;
1074
1075 extensions->OES_EGL_image = GL_TRUE;
1076 extensions->OES_EGL_image_external = GL_TRUE;
1077 extensions->OES_draw_texture = GL_TRUE;
1078
1079 /* Expose the extensions which directly correspond to gallium caps. */
1080 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1081 if (screen->get_param(screen, cap_mapping[i].cap)) {
1082 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1083 }
1084 }
1085
1086 /* Expose the extensions which directly correspond to gallium formats. */
1087 init_format_extensions(screen, extensions, rendertarget_mapping,
1088 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1089 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1090 init_format_extensions(screen, extensions, rt_blendable,
1091 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1092 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1093 PIPE_BIND_BLENDABLE);
1094 init_format_extensions(screen, extensions, depthstencil_mapping,
1095 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1096 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1097 init_format_extensions(screen, extensions, texture_mapping,
1098 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1099 PIPE_BIND_SAMPLER_VIEW);
1100 init_format_extensions(screen, extensions, vertex_mapping,
1101 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1102 PIPE_BIND_VERTEX_BUFFER);
1103
1104 /* Figure out GLSL support and set GLSLVersion to it. */
1105 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1106 consts->GLSLVersionCompat =
1107 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1108
1109 const unsigned ESSLVersion =
1110 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1111 const unsigned GLSLVersion =
1112 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1113 consts->GLSLVersion;
1114
1115 _mesa_override_glsl_version(consts);
1116
1117 if (options->force_glsl_version > 0 &&
1118 options->force_glsl_version <= GLSLVersion) {
1119 consts->ForceGLSLVersion = options->force_glsl_version;
1120 }
1121
1122 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1123
1124 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1125
1126 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1127
1128 consts->dri_config_options_sha1 = options->config_options_sha1;
1129
1130 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1131
1132 /* Technically we are turning on the EXT_gpu_shader5 extension,
1133 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1134 * switches on EXT_gpu_shader5:
1135 */
1136 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1137 extensions->ARB_gpu_shader5 = GL_TRUE;
1138
1139 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1140 extensions->ARB_gpu_shader5 = GL_TRUE;
1141 if (GLSLVersion >= 410)
1142 extensions->ARB_shader_precision = GL_TRUE;
1143
1144 /* This extension needs full OpenGL 3.2, but we don't know if that's
1145 * supported at this point. Only check the GLSL version. */
1146 if (GLSLVersion >= 150 &&
1147 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1148 extensions->AMD_vertex_shader_layer = GL_TRUE;
1149 }
1150
1151 if (GLSLVersion >= 140) {
1152 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1153 * we can always expose it if the driver can do 140. Supporting
1154 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1155 * pipe cap.
1156 */
1157 extensions->EXT_gpu_shader4 = GL_TRUE;
1158 extensions->EXT_texture_buffer_object = GL_TRUE;
1159
1160 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1161 extensions->ARB_enhanced_layouts = GL_TRUE;
1162 }
1163
1164 if (GLSLVersion >= 130) {
1165 consts->NativeIntegers = GL_TRUE;
1166 consts->MaxClipPlanes = 8;
1167
1168 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1169 consts->VertexID_is_zero_based = GL_TRUE;
1170 }
1171
1172 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1173 extensions->ARB_conservative_depth = GL_TRUE;
1174 extensions->ARB_shading_language_packing = GL_TRUE;
1175 extensions->OES_depth_texture_cube_map = GL_TRUE;
1176 extensions->ARB_shading_language_420pack = GL_TRUE;
1177 extensions->ARB_texture_query_levels = GL_TRUE;
1178
1179 extensions->ARB_shader_bit_encoding = GL_TRUE;
1180
1181 extensions->EXT_shader_integer_mix = GL_TRUE;
1182 extensions->ARB_arrays_of_arrays = GL_TRUE;
1183 extensions->MESA_shader_integer_functions = GL_TRUE;
1184
1185 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1186 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1187 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1188 }
1189 } else {
1190 /* Optional integer support for GLSL 1.2. */
1191 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1192 PIPE_SHADER_CAP_INTEGERS) &&
1193 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1194 PIPE_SHADER_CAP_INTEGERS)) {
1195 consts->NativeIntegers = GL_TRUE;
1196
1197 extensions->EXT_shader_integer_mix = GL_TRUE;
1198 }
1199
1200 /* Integer textures make no sense before GLSL 1.30 */
1201 extensions->EXT_texture_integer = GL_FALSE;
1202 }
1203
1204 consts->GLSLZeroInit = options->glsl_zero_init;
1205
1206 consts->VendorOverride = options->force_gl_vendor;
1207
1208 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1209
1210 /* Below are the cases which cannot be moved into tables easily. */
1211
1212 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1213 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1214 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1215 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1216 extensions->ARB_tessellation_shader = GL_TRUE;
1217 }
1218
1219 /* What this is really checking for is the ability to support multiple
1220 * invocations of a geometry shader. There is no separate cap for that, so
1221 * we check the GLSLVersion.
1222 */
1223 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1224 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1225 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1226 extensions->OES_geometry_shader = GL_TRUE;
1227 }
1228
1229 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1230 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1231 */
1232 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1233 extensions->ARB_gpu_shader5;
1234
1235 /* Maximum sample count. */
1236 {
1237 static const enum pipe_format color_formats[] = {
1238 PIPE_FORMAT_R8G8B8A8_UNORM,
1239 PIPE_FORMAT_B8G8R8A8_UNORM,
1240 PIPE_FORMAT_A8R8G8B8_UNORM,
1241 PIPE_FORMAT_A8B8G8R8_UNORM,
1242 };
1243 static const enum pipe_format depth_formats[] = {
1244 PIPE_FORMAT_Z16_UNORM,
1245 PIPE_FORMAT_Z24X8_UNORM,
1246 PIPE_FORMAT_X8Z24_UNORM,
1247 PIPE_FORMAT_Z32_UNORM,
1248 PIPE_FORMAT_Z32_FLOAT
1249 };
1250 static const enum pipe_format int_formats[] = {
1251 PIPE_FORMAT_R8G8B8A8_SINT
1252 };
1253 static const enum pipe_format void_formats[] = {
1254 PIPE_FORMAT_NONE
1255 };
1256
1257 consts->MaxSamples =
1258 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1259 color_formats, 16,
1260 PIPE_BIND_RENDER_TARGET);
1261
1262 consts->MaxImageSamples =
1263 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1264 color_formats, 16,
1265 PIPE_BIND_SHADER_IMAGE);
1266
1267 consts->MaxColorTextureSamples =
1268 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1269 color_formats, consts->MaxSamples,
1270 PIPE_BIND_SAMPLER_VIEW);
1271
1272 consts->MaxDepthTextureSamples =
1273 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1274 depth_formats, consts->MaxSamples,
1275 PIPE_BIND_SAMPLER_VIEW);
1276
1277 consts->MaxIntegerSamples =
1278 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1279 int_formats, consts->MaxSamples,
1280 PIPE_BIND_SAMPLER_VIEW);
1281
1282 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1283 consts->MaxFramebufferSamples =
1284 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1285 void_formats, 32,
1286 PIPE_BIND_RENDER_TARGET);
1287
1288 if (extensions->AMD_framebuffer_multisample_advanced) {
1289 /* AMD_framebuffer_multisample_advanced */
1290 /* This can be greater than storage samples. */
1291 consts->MaxColorFramebufferSamples =
1292 get_max_samples_for_formats_advanced(screen,
1293 ARRAY_SIZE(color_formats),
1294 color_formats, 16,
1295 consts->MaxSamples,
1296 PIPE_BIND_RENDER_TARGET);
1297
1298 /* If the driver supports N color samples, it means it supports
1299 * N samples and N storage samples. N samples >= N storage
1300 * samples.
1301 */
1302 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1303 consts->MaxDepthStencilFramebufferSamples =
1304 consts->MaxDepthTextureSamples;
1305
1306 assert(consts->MaxColorFramebufferSamples >=
1307 consts->MaxDepthStencilFramebufferSamples);
1308 assert(consts->MaxDepthStencilFramebufferSamples >=
1309 consts->MaxColorFramebufferStorageSamples);
1310
1311 consts->NumSupportedMultisampleModes = 0;
1312
1313 unsigned depth_samples_supported = 0;
1314
1315 for (unsigned samples = 2;
1316 samples <= consts->MaxDepthStencilFramebufferSamples;
1317 samples++) {
1318 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1319 PIPE_TEXTURE_2D, samples, samples,
1320 PIPE_BIND_DEPTH_STENCIL))
1321 depth_samples_supported |= 1 << samples;
1322 }
1323
1324 for (unsigned samples = 2;
1325 samples <= consts->MaxColorFramebufferSamples;
1326 samples++) {
1327 for (unsigned depth_samples = 2;
1328 depth_samples <= samples; depth_samples++) {
1329 if (!(depth_samples_supported & (1 << depth_samples)))
1330 continue;
1331
1332 for (unsigned storage_samples = 2;
1333 storage_samples <= depth_samples; storage_samples++) {
1334 if (screen->is_format_supported(screen,
1335 PIPE_FORMAT_R8G8B8A8_UNORM,
1336 PIPE_TEXTURE_2D,
1337 samples,
1338 storage_samples,
1339 PIPE_BIND_RENDER_TARGET)) {
1340 unsigned i = consts->NumSupportedMultisampleModes;
1341
1342 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1343 consts->SupportedMultisampleModes[i].NumColorSamples =
1344 samples;
1345 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1346 storage_samples;
1347 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1348 depth_samples;
1349 consts->NumSupportedMultisampleModes++;
1350 }
1351 }
1352 }
1353 }
1354 }
1355 }
1356
1357 if (consts->MaxSamples >= 2) {
1358 /* Real MSAA support */
1359 extensions->EXT_framebuffer_multisample = GL_TRUE;
1360 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1361 }
1362 else if (consts->MaxSamples > 0 &&
1363 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1364 /* fake MSAA support */
1365 consts->FakeSWMSAA = GL_TRUE;
1366 extensions->EXT_framebuffer_multisample = GL_TRUE;
1367 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1368 extensions->ARB_texture_multisample = GL_TRUE;
1369 }
1370
1371 if (consts->MaxDualSourceDrawBuffers > 0 &&
1372 !options->disable_blend_func_extended)
1373 extensions->ARB_blend_func_extended = GL_TRUE;
1374
1375 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1376 extensions->ARB_timer_query) {
1377 extensions->EXT_timer_query = GL_TRUE;
1378 }
1379
1380 if (extensions->ARB_transform_feedback2 &&
1381 extensions->ARB_draw_instanced) {
1382 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1383 }
1384 if (options->force_glsl_extensions_warn)
1385 consts->ForceGLSLExtensionsWarn = 1;
1386
1387 if (options->disable_glsl_line_continuations)
1388 consts->DisableGLSLLineContinuations = 1;
1389
1390 if (options->allow_glsl_extension_directive_midshader)
1391 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1392
1393 if (options->allow_glsl_builtin_const_expression)
1394 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1395
1396 if (options->allow_glsl_relaxed_es)
1397 consts->AllowGLSLRelaxedES = GL_TRUE;
1398
1399 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1400 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1401
1402 consts->MinMapBufferAlignment =
1403 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1404
1405 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1406 if (api == API_OPENGL_COMPAT &&
1407 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1408 extensions->ARB_texture_buffer_object = GL_FALSE;
1409
1410 if (extensions->ARB_texture_buffer_object) {
1411 consts->MaxTextureBufferSize =
1412 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1413 (1u << 31) - 1);
1414 consts->TextureBufferOffsetAlignment =
1415 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1416
1417 if (consts->TextureBufferOffsetAlignment)
1418 extensions->ARB_texture_buffer_range = GL_TRUE;
1419
1420 init_format_extensions(screen, extensions, tbo_rgb32,
1421 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1422 PIPE_BIND_SAMPLER_VIEW);
1423 }
1424
1425 extensions->OES_texture_buffer =
1426 extensions->ARB_texture_buffer_object &&
1427 extensions->ARB_texture_buffer_range &&
1428 extensions->ARB_texture_buffer_object_rgb32 &&
1429 extensions->ARB_shader_image_load_store;
1430
1431 extensions->EXT_framebuffer_sRGB =
1432 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1433 extensions->EXT_sRGB;
1434
1435 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1436 * If the number of available texture indirections is very limited, then we
1437 * prefer to disable varying packing rather than run the risk of varying
1438 * packing preventing a shader from running.
1439 */
1440 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1441 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1442 /* We can't disable varying packing if transform feedback is available,
1443 * because transform feedback code assumes a packed varying layout.
1444 */
1445 if (!extensions->EXT_transform_feedback)
1446 consts->DisableVaryingPacking = GL_TRUE;
1447 }
1448
1449 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1450 consts->DisableTransformFeedbackPacking = GL_TRUE;
1451
1452 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1453 bool coherent_fb_fetch =
1454 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1455
1456 if (max_fb_fetch_rts > 0) {
1457 extensions->KHR_blend_equation_advanced = true;
1458 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1459
1460 if (max_fb_fetch_rts >=
1461 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1462 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1463 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1464 }
1465 }
1466
1467 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1468 if (consts->MaxViewports >= 16) {
1469 if (GLSLVersion >= 400) {
1470 consts->ViewportBounds.Min = -32768.0;
1471 consts->ViewportBounds.Max = 32767.0;
1472 } else {
1473 consts->ViewportBounds.Min = -16384.0;
1474 consts->ViewportBounds.Max = 16383.0;
1475 }
1476 extensions->ARB_viewport_array = GL_TRUE;
1477 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1478 if (extensions->AMD_vertex_shader_layer)
1479 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1480 }
1481
1482 if (extensions->AMD_vertex_shader_layer &&
1483 extensions->AMD_vertex_shader_viewport_index &&
1484 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1485 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1486
1487 /* ARB_framebuffer_no_attachments */
1488 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1489 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1490 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1491 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1492 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1493
1494 /* GL_ARB_ES3_compatibility.
1495 * Check requirements for GLSL ES 3.00.
1496 */
1497 if (GLSLVersion >= 130 &&
1498 extensions->ARB_uniform_buffer_object &&
1499 extensions->NV_primitive_restart &&
1500 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1501 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1502 /* Requirements for ETC2 emulation. */
1503 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1504 PIPE_TEXTURE_2D, 0, 0,
1505 PIPE_BIND_SAMPLER_VIEW) &&
1506 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1507 PIPE_TEXTURE_2D, 0, 0,
1508 PIPE_BIND_SAMPLER_VIEW) &&
1509 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1510 PIPE_TEXTURE_2D, 0, 0,
1511 PIPE_BIND_SAMPLER_VIEW) &&
1512 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1513 PIPE_TEXTURE_2D, 0, 0,
1514 PIPE_BIND_SAMPLER_VIEW) &&
1515 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1516 PIPE_TEXTURE_2D, 0, 0,
1517 PIPE_BIND_SAMPLER_VIEW) &&
1518 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1519 PIPE_TEXTURE_2D, 0, 0,
1520 PIPE_BIND_SAMPLER_VIEW)) {
1521 extensions->ARB_ES3_compatibility = GL_TRUE;
1522 }
1523
1524 #ifdef HAVE_ST_VDPAU
1525 if (screen->get_video_param &&
1526 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1527 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1528 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1529 extensions->NV_vdpau_interop = GL_TRUE;
1530 }
1531 #endif
1532
1533 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1534 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1535 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1536 }
1537
1538 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1539 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1540 extensions->GREMEDY_string_marker = GL_TRUE;
1541
1542 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1543 int compute_supported_irs =
1544 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1545 PIPE_SHADER_CAP_SUPPORTED_IRS);
1546 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1547 (1 << PIPE_SHADER_IR_NIR))) {
1548 enum pipe_shader_ir ir =
1549 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1550 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1551 uint64_t grid_size[3], block_size[3];
1552 uint64_t max_local_size, max_threads_per_block;
1553
1554 screen->get_compute_param(screen, ir,
1555 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1556 screen->get_compute_param(screen, ir,
1557 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1558 screen->get_compute_param(screen, ir,
1559 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1560 &max_threads_per_block);
1561 screen->get_compute_param(screen, ir,
1562 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1563 &max_local_size);
1564
1565 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1566 consts->MaxComputeSharedMemorySize = max_local_size;
1567
1568 for (i = 0; i < 3; i++) {
1569 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1570 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1571 }
1572
1573 extensions->ARB_compute_shader =
1574 extensions->ARB_shader_image_load_store &&
1575 extensions->ARB_shader_atomic_counters;
1576
1577 if (extensions->ARB_compute_shader) {
1578 uint64_t max_variable_threads_per_block = 0;
1579
1580 screen->get_compute_param(screen, ir,
1581 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1582 &max_variable_threads_per_block);
1583
1584 for (i = 0; i < 3; i++) {
1585 /* Clamp the values to avoid having a local work group size
1586 * greater than the maximum number of invocations.
1587 */
1588 consts->MaxComputeVariableGroupSize[i] =
1589 MIN2(consts->MaxComputeWorkGroupSize[i],
1590 max_variable_threads_per_block);
1591 }
1592 consts->MaxComputeVariableGroupInvocations =
1593 max_variable_threads_per_block;
1594
1595 extensions->ARB_compute_variable_group_size =
1596 max_variable_threads_per_block > 0;
1597 }
1598 }
1599 }
1600
1601 extensions->ARB_texture_float =
1602 extensions->OES_texture_half_float &&
1603 extensions->OES_texture_float;
1604
1605 if (extensions->EXT_texture_filter_anisotropic &&
1606 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1607 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1608
1609 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1610
1611 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1612 * there's no clean way of telling whether we would support ES 3.1 from
1613 * here, so copy the condition from compute_version_es2 here. A lot of
1614 * these are redunant, but simpler to just have a (near-)exact copy here.
1615 */
1616 extensions->ARB_ES3_1_compatibility =
1617 extensions->ARB_ES3_compatibility &&
1618 extensions->ARB_arrays_of_arrays &&
1619 extensions->ARB_compute_shader &&
1620 extensions->ARB_draw_indirect &&
1621 extensions->ARB_explicit_uniform_location &&
1622 extensions->ARB_framebuffer_no_attachments &&
1623 extensions->ARB_shader_atomic_counters &&
1624 extensions->ARB_shader_image_load_store &&
1625 extensions->ARB_shader_image_size &&
1626 extensions->ARB_shader_storage_buffer_object &&
1627 extensions->ARB_shading_language_packing &&
1628 extensions->ARB_stencil_texturing &&
1629 extensions->ARB_texture_multisample &&
1630 extensions->ARB_gpu_shader5 &&
1631 extensions->EXT_shader_integer_mix;
1632
1633 extensions->OES_texture_cube_map_array =
1634 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1635 extensions->OES_geometry_shader &&
1636 extensions->ARB_texture_cube_map_array;
1637
1638 extensions->OES_viewport_array =
1639 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1640 extensions->OES_geometry_shader &&
1641 extensions->ARB_viewport_array;
1642
1643 extensions->OES_primitive_bounding_box =
1644 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1645
1646 consts->NoPrimitiveBoundingBoxOutput = true;
1647
1648 extensions->ANDROID_extension_pack_es31a =
1649 extensions->KHR_texture_compression_astc_ldr &&
1650 extensions->KHR_blend_equation_advanced &&
1651 extensions->OES_sample_variables &&
1652 extensions->ARB_shader_image_load_store &&
1653 extensions->ARB_texture_stencil8 &&
1654 extensions->ARB_texture_multisample &&
1655 extensions->OES_copy_image &&
1656 extensions->ARB_draw_buffers_blend &&
1657 extensions->OES_geometry_shader &&
1658 extensions->ARB_gpu_shader5 &&
1659 extensions->OES_primitive_bounding_box &&
1660 extensions->ARB_tessellation_shader &&
1661 extensions->ARB_texture_border_clamp &&
1662 extensions->OES_texture_buffer &&
1663 extensions->OES_texture_cube_map_array &&
1664 extensions->EXT_texture_sRGB_decode;
1665
1666 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1667 * before overall versions are selected. Also it's actually a subset of ES
1668 * 3.2, since it doesn't require ASTC or advanced blending.
1669 */
1670 extensions->ARB_ES3_2_compatibility =
1671 extensions->ARB_ES3_1_compatibility &&
1672 extensions->KHR_robustness &&
1673 extensions->ARB_copy_image &&
1674 extensions->ARB_draw_buffers_blend &&
1675 extensions->ARB_draw_elements_base_vertex &&
1676 extensions->OES_geometry_shader &&
1677 extensions->ARB_gpu_shader5 &&
1678 extensions->ARB_sample_shading &&
1679 extensions->ARB_tessellation_shader &&
1680 extensions->ARB_texture_border_clamp &&
1681 extensions->OES_texture_buffer &&
1682 extensions->ARB_texture_cube_map_array &&
1683 extensions->ARB_texture_stencil8 &&
1684 extensions->ARB_texture_multisample;
1685
1686 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1687 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1688 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1689 float max_dilate;
1690 bool pre_snap_triangles, pre_snap_points_lines;
1691
1692 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1693
1694 pre_snap_triangles =
1695 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1696 pre_snap_points_lines =
1697 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1698
1699 extensions->NV_conservative_raster =
1700 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1701
1702 if (extensions->NV_conservative_raster) {
1703 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1704 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1705 extensions->NV_conservative_raster_pre_snap =
1706 pre_snap_triangles && pre_snap_points_lines;
1707 }
1708 }
1709
1710 if (extensions->ARB_gl_spirv) {
1711 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1712
1713 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1714 spirv_caps->demote_to_helper_invocation = extensions->EXT_demote_to_helper_invocation;
1715 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1716 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1717 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1718 spirv_caps->image_ms_array = extensions->ARB_shader_image_load_store &&
1719 consts->MaxImageSamples > 1;
1720 spirv_caps->image_read_without_format = extensions->EXT_shader_image_load_formatted;
1721 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1722 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1723 spirv_caps->post_depth_coverage = extensions->ARB_post_depth_coverage;
1724 spirv_caps->shader_clock = extensions->ARB_shader_clock;
1725 spirv_caps->shader_viewport_index_layer = extensions->ARB_shader_viewport_layer_array;
1726 spirv_caps->stencil_export = extensions->ARB_shader_stencil_export;
1727 spirv_caps->storage_image_ms = extensions->ARB_shader_image_load_store &&
1728 consts->MaxImageSamples > 1;
1729 spirv_caps->subgroup_ballot = extensions->ARB_shader_ballot;
1730 spirv_caps->subgroup_vote = extensions->ARB_shader_group_vote;
1731 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1732 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1733 spirv_caps->variable_pointers =
1734 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1735 spirv_caps->integer_functions2 = extensions->INTEL_shader_integer_functions2;
1736
1737 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1738 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1739 }
1740
1741 consts->AllowDrawOutOfOrder = options->allow_draw_out_of_order;
1742 }