projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
replace _mesa_logbase2 with util_logbase2
[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 "util/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(NV_viewport_array2), PIPE_CAP_VIEWPORT_MASK },
808 { o(NV_viewport_swizzle), PIPE_CAP_VIEWPORT_SWIZZLE },
809 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
810 /* GL_NV_point_sprite is not supported by gallium because we don't
811 * support the GL_POINT_SPRITE_R_MODE_NV option. */
812
813 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
814 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
815 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
816 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
817 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP, },
818 };
819
820 /* Required: render target and sampler support */
821 static const struct st_extension_format_mapping rendertarget_mapping[] = {
822 { { o(OES_texture_float) },
823 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
824
825 { { o(OES_texture_half_float) },
826 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
827
828 { { o(ARB_texture_rgb10_a2ui) },
829 { PIPE_FORMAT_R10G10B10A2_UINT,
830 PIPE_FORMAT_B10G10R10A2_UINT },
831 GL_TRUE }, /* at least one format must be supported */
832
833 { { o(EXT_sRGB) },
834 { PIPE_FORMAT_A8B8G8R8_SRGB,
835 PIPE_FORMAT_B8G8R8A8_SRGB,
836 PIPE_FORMAT_R8G8B8A8_SRGB },
837 GL_TRUE }, /* at least one format must be supported */
838
839 { { o(EXT_packed_float) },
840 { PIPE_FORMAT_R11G11B10_FLOAT } },
841
842 { { o(EXT_texture_integer) },
843 { PIPE_FORMAT_R32G32B32A32_UINT,
844 PIPE_FORMAT_R32G32B32A32_SINT } },
845
846 { { o(ARB_texture_rg) },
847 { PIPE_FORMAT_R8_UNORM,
848 PIPE_FORMAT_R8G8_UNORM } },
849
850 { { o(EXT_texture_norm16) },
851 { PIPE_FORMAT_R16_UNORM,
852 PIPE_FORMAT_R16G16_UNORM,
853 PIPE_FORMAT_R16G16B16A16_UNORM } },
854
855 { { o(EXT_render_snorm) },
856 { PIPE_FORMAT_R8_SNORM,
857 PIPE_FORMAT_R8G8_SNORM,
858 PIPE_FORMAT_R8G8B8A8_SNORM,
859 PIPE_FORMAT_R16_SNORM,
860 PIPE_FORMAT_R16G16_SNORM,
861 PIPE_FORMAT_R16G16B16A16_SNORM } },
862 };
863
864 /* Required: render target, sampler, and blending */
865 static const struct st_extension_format_mapping rt_blendable[] = {
866 { { o(EXT_float_blend) },
867 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
868 };
869
870 /* Required: depth stencil and sampler support */
871 static const struct st_extension_format_mapping depthstencil_mapping[] = {
872 { { o(ARB_depth_buffer_float) },
873 { PIPE_FORMAT_Z32_FLOAT,
874 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
875 };
876
877 /* Required: sampler support */
878 static const struct st_extension_format_mapping texture_mapping[] = {
879 { { o(ARB_texture_compression_rgtc) },
880 { PIPE_FORMAT_RGTC1_UNORM,
881 PIPE_FORMAT_RGTC1_SNORM,
882 PIPE_FORMAT_RGTC2_UNORM,
883 PIPE_FORMAT_RGTC2_SNORM } },
884
885 { { o(EXT_texture_compression_latc) },
886 { PIPE_FORMAT_LATC1_UNORM,
887 PIPE_FORMAT_LATC1_SNORM,
888 PIPE_FORMAT_LATC2_UNORM,
889 PIPE_FORMAT_LATC2_SNORM } },
890
891 { { o(EXT_texture_compression_s3tc),
892 o(ANGLE_texture_compression_dxt) },
893 { PIPE_FORMAT_DXT1_RGB,
894 PIPE_FORMAT_DXT1_RGBA,
895 PIPE_FORMAT_DXT3_RGBA,
896 PIPE_FORMAT_DXT5_RGBA } },
897
898 { { o(EXT_texture_compression_s3tc_srgb) },
899 { PIPE_FORMAT_DXT1_SRGB,
900 PIPE_FORMAT_DXT1_SRGBA,
901 PIPE_FORMAT_DXT3_SRGBA,
902 PIPE_FORMAT_DXT5_SRGBA } },
903
904 { { o(ARB_texture_compression_bptc) },
905 { PIPE_FORMAT_BPTC_RGBA_UNORM,
906 PIPE_FORMAT_BPTC_SRGBA,
907 PIPE_FORMAT_BPTC_RGB_FLOAT,
908 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
909
910 { { o(TDFX_texture_compression_FXT1) },
911 { PIPE_FORMAT_FXT1_RGB,
912 PIPE_FORMAT_FXT1_RGBA } },
913
914 { { o(KHR_texture_compression_astc_ldr),
915 o(KHR_texture_compression_astc_sliced_3d) },
916 { PIPE_FORMAT_ASTC_4x4,
917 PIPE_FORMAT_ASTC_5x4,
918 PIPE_FORMAT_ASTC_5x5,
919 PIPE_FORMAT_ASTC_6x5,
920 PIPE_FORMAT_ASTC_6x6,
921 PIPE_FORMAT_ASTC_8x5,
922 PIPE_FORMAT_ASTC_8x6,
923 PIPE_FORMAT_ASTC_8x8,
924 PIPE_FORMAT_ASTC_10x5,
925 PIPE_FORMAT_ASTC_10x6,
926 PIPE_FORMAT_ASTC_10x8,
927 PIPE_FORMAT_ASTC_10x10,
928 PIPE_FORMAT_ASTC_12x10,
929 PIPE_FORMAT_ASTC_12x12,
930 PIPE_FORMAT_ASTC_4x4_SRGB,
931 PIPE_FORMAT_ASTC_5x4_SRGB,
932 PIPE_FORMAT_ASTC_5x5_SRGB,
933 PIPE_FORMAT_ASTC_6x5_SRGB,
934 PIPE_FORMAT_ASTC_6x6_SRGB,
935 PIPE_FORMAT_ASTC_8x5_SRGB,
936 PIPE_FORMAT_ASTC_8x6_SRGB,
937 PIPE_FORMAT_ASTC_8x8_SRGB,
938 PIPE_FORMAT_ASTC_10x5_SRGB,
939 PIPE_FORMAT_ASTC_10x6_SRGB,
940 PIPE_FORMAT_ASTC_10x8_SRGB,
941 PIPE_FORMAT_ASTC_10x10_SRGB,
942 PIPE_FORMAT_ASTC_12x10_SRGB,
943 PIPE_FORMAT_ASTC_12x12_SRGB } },
944
945 /* ASTC software fallback support. */
946 { { o(KHR_texture_compression_astc_ldr),
947 o(KHR_texture_compression_astc_sliced_3d) },
948 { PIPE_FORMAT_R8G8B8A8_UNORM,
949 PIPE_FORMAT_R8G8B8A8_SRGB } },
950
951 { { o(EXT_texture_shared_exponent) },
952 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
953
954 { { o(EXT_texture_snorm) },
955 { PIPE_FORMAT_R8G8B8A8_SNORM } },
956
957 { { o(EXT_texture_sRGB),
958 o(EXT_texture_sRGB_decode) },
959 { PIPE_FORMAT_A8B8G8R8_SRGB,
960 PIPE_FORMAT_B8G8R8A8_SRGB,
961 PIPE_FORMAT_A8R8G8B8_SRGB,
962 PIPE_FORMAT_R8G8B8A8_SRGB},
963 GL_TRUE }, /* at least one format must be supported */
964
965 { { o(EXT_texture_sRGB_R8) },
966 { PIPE_FORMAT_R8_SRGB },
967 GL_TRUE },
968
969 { { o(EXT_texture_type_2_10_10_10_REV) },
970 { PIPE_FORMAT_R10G10B10A2_UNORM,
971 PIPE_FORMAT_B10G10R10A2_UNORM },
972 GL_TRUE }, /* at least one format must be supported */
973
974 { { o(ATI_texture_compression_3dc) },
975 { PIPE_FORMAT_LATC2_UNORM } },
976
977 { { o(MESA_ycbcr_texture) },
978 { PIPE_FORMAT_UYVY,
979 PIPE_FORMAT_YUYV },
980 GL_TRUE }, /* at least one format must be supported */
981
982 { { o(OES_compressed_ETC1_RGB8_texture) },
983 { PIPE_FORMAT_ETC1_RGB8,
984 PIPE_FORMAT_R8G8B8A8_UNORM },
985 GL_TRUE }, /* at least one format must be supported */
986
987 { { o(ARB_stencil_texturing),
988 o(ARB_texture_stencil8) },
989 { PIPE_FORMAT_X24S8_UINT,
990 PIPE_FORMAT_S8X24_UINT },
991 GL_TRUE }, /* at least one format must be supported */
992
993 { { o(AMD_compressed_ATC_texture) },
994 { PIPE_FORMAT_ATC_RGB,
995 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
996 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
997 };
998
999 /* Required: vertex fetch support. */
1000 static const struct st_extension_format_mapping vertex_mapping[] = {
1001 { { o(EXT_vertex_array_bgra) },
1002 { PIPE_FORMAT_B8G8R8A8_UNORM } },
1003 { { o(ARB_vertex_type_2_10_10_10_rev) },
1004 { PIPE_FORMAT_R10G10B10A2_UNORM,
1005 PIPE_FORMAT_B10G10R10A2_UNORM,
1006 PIPE_FORMAT_R10G10B10A2_SNORM,
1007 PIPE_FORMAT_B10G10R10A2_SNORM,
1008 PIPE_FORMAT_R10G10B10A2_USCALED,
1009 PIPE_FORMAT_B10G10R10A2_USCALED,
1010 PIPE_FORMAT_R10G10B10A2_SSCALED,
1011 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1012 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1013 { PIPE_FORMAT_R11G11B10_FLOAT } },
1014 };
1015
1016 static const struct st_extension_format_mapping tbo_rgb32[] = {
1017 { {o(ARB_texture_buffer_object_rgb32) },
1018 { PIPE_FORMAT_R32G32B32_FLOAT,
1019 PIPE_FORMAT_R32G32B32_UINT,
1020 PIPE_FORMAT_R32G32B32_SINT,
1021 } },
1022 };
1023
1024 /*
1025 * Extensions that are supported by all Gallium drivers:
1026 */
1027 extensions->ARB_ES2_compatibility = GL_TRUE;
1028 extensions->ARB_depth_texture = GL_TRUE;
1029 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
1030 extensions->ARB_explicit_attrib_location = GL_TRUE;
1031 extensions->ARB_explicit_uniform_location = GL_TRUE;
1032 extensions->ARB_fragment_coord_conventions = GL_TRUE;
1033 extensions->ARB_fragment_program = GL_TRUE;
1034 extensions->ARB_fragment_shader = GL_TRUE;
1035 extensions->ARB_half_float_vertex = GL_TRUE;
1036 extensions->ARB_internalformat_query = GL_TRUE;
1037 extensions->ARB_internalformat_query2 = GL_TRUE;
1038 extensions->ARB_map_buffer_range = GL_TRUE;
1039 extensions->ARB_sync = GL_TRUE;
1040 extensions->ARB_texture_border_clamp = GL_TRUE;
1041 extensions->ARB_texture_cube_map = GL_TRUE;
1042 extensions->ARB_texture_env_combine = GL_TRUE;
1043 extensions->ARB_texture_env_crossbar = GL_TRUE;
1044 extensions->ARB_texture_env_dot3 = GL_TRUE;
1045 extensions->ARB_vertex_program = GL_TRUE;
1046 extensions->ARB_vertex_shader = GL_TRUE;
1047
1048 extensions->EXT_blend_color = GL_TRUE;
1049 extensions->EXT_blend_func_separate = GL_TRUE;
1050 extensions->EXT_blend_minmax = GL_TRUE;
1051 extensions->EXT_EGL_image_storage = GL_TRUE;
1052 extensions->EXT_gpu_program_parameters = GL_TRUE;
1053 extensions->EXT_pixel_buffer_object = GL_TRUE;
1054 extensions->EXT_point_parameters = GL_TRUE;
1055 extensions->EXT_provoking_vertex = GL_TRUE;
1056 extensions->EXT_stencil_two_side = GL_TRUE;
1057 extensions->EXT_texture_env_dot3 = GL_TRUE;
1058
1059 extensions->ATI_fragment_shader = GL_TRUE;
1060 extensions->ATI_texture_env_combine3 = GL_TRUE;
1061
1062 extensions->MESA_framebuffer_flip_y = GL_TRUE;
1063 extensions->MESA_pack_invert = GL_TRUE;
1064
1065 extensions->NV_copy_image = GL_TRUE;
1066 extensions->NV_fog_distance = GL_TRUE;
1067 extensions->NV_texture_env_combine4 = GL_TRUE;
1068 extensions->NV_texture_rectangle = GL_TRUE;
1069
1070 extensions->OES_EGL_image = GL_TRUE;
1071 extensions->OES_EGL_image_external = GL_TRUE;
1072 extensions->OES_draw_texture = GL_TRUE;
1073
1074 /* Expose the extensions which directly correspond to gallium caps. */
1075 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1076 if (screen->get_param(screen, cap_mapping[i].cap)) {
1077 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1078 }
1079 }
1080
1081 /* Expose the extensions which directly correspond to gallium formats. */
1082 init_format_extensions(screen, extensions, rendertarget_mapping,
1083 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1084 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1085 init_format_extensions(screen, extensions, rt_blendable,
1086 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1087 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1088 PIPE_BIND_BLENDABLE);
1089 init_format_extensions(screen, extensions, depthstencil_mapping,
1090 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1091 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1092 init_format_extensions(screen, extensions, texture_mapping,
1093 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1094 PIPE_BIND_SAMPLER_VIEW);
1095 init_format_extensions(screen, extensions, vertex_mapping,
1096 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1097 PIPE_BIND_VERTEX_BUFFER);
1098
1099 /* Figure out GLSL support and set GLSLVersion to it. */
1100 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1101 consts->GLSLVersionCompat =
1102 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1103
1104 const unsigned ESSLVersion =
1105 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1106 const unsigned GLSLVersion =
1107 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1108 consts->GLSLVersion;
1109
1110 _mesa_override_glsl_version(consts);
1111
1112 if (options->force_glsl_version > 0 &&
1113 options->force_glsl_version <= GLSLVersion) {
1114 consts->ForceGLSLVersion = options->force_glsl_version;
1115 }
1116
1117 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1118
1119 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1120
1121 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1122
1123 consts->dri_config_options_sha1 = options->config_options_sha1;
1124
1125 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1126
1127 /* Technically we are turning on the EXT_gpu_shader5 extension,
1128 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1129 * switches on EXT_gpu_shader5:
1130 */
1131 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1132 extensions->ARB_gpu_shader5 = GL_TRUE;
1133
1134 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1135 extensions->ARB_gpu_shader5 = GL_TRUE;
1136 if (GLSLVersion >= 410)
1137 extensions->ARB_shader_precision = GL_TRUE;
1138
1139 /* This extension needs full OpenGL 3.2, but we don't know if that's
1140 * supported at this point. Only check the GLSL version. */
1141 if (GLSLVersion >= 150 &&
1142 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1143 extensions->AMD_vertex_shader_layer = GL_TRUE;
1144 }
1145
1146 if (GLSLVersion >= 140) {
1147 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1148 * we can always expose it if the driver can do 140. Supporting
1149 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1150 * pipe cap.
1151 */
1152 extensions->EXT_gpu_shader4 = GL_TRUE;
1153 extensions->EXT_texture_buffer_object = GL_TRUE;
1154
1155 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1156 extensions->ARB_enhanced_layouts = GL_TRUE;
1157 }
1158
1159 if (GLSLVersion >= 130) {
1160 consts->NativeIntegers = GL_TRUE;
1161 consts->MaxClipPlanes = 8;
1162
1163 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1164 consts->VertexID_is_zero_based = GL_TRUE;
1165 }
1166
1167 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1168 extensions->ARB_conservative_depth = GL_TRUE;
1169 extensions->ARB_shading_language_packing = GL_TRUE;
1170 extensions->OES_depth_texture_cube_map = GL_TRUE;
1171 extensions->ARB_shading_language_420pack = GL_TRUE;
1172 extensions->ARB_texture_query_levels = GL_TRUE;
1173
1174 extensions->ARB_shader_bit_encoding = GL_TRUE;
1175
1176 extensions->EXT_shader_integer_mix = GL_TRUE;
1177 extensions->ARB_arrays_of_arrays = GL_TRUE;
1178 extensions->MESA_shader_integer_functions = GL_TRUE;
1179
1180 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1181 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1182 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1183 }
1184 } else {
1185 /* Optional integer support for GLSL 1.2. */
1186 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1187 PIPE_SHADER_CAP_INTEGERS) &&
1188 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1189 PIPE_SHADER_CAP_INTEGERS)) {
1190 consts->NativeIntegers = GL_TRUE;
1191
1192 extensions->EXT_shader_integer_mix = GL_TRUE;
1193 }
1194
1195 /* Integer textures make no sense before GLSL 1.30 */
1196 extensions->EXT_texture_integer = GL_FALSE;
1197 }
1198
1199 consts->GLSLZeroInit = options->glsl_zero_init;
1200
1201 consts->VendorOverride = options->force_gl_vendor;
1202
1203 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1204
1205 /* Below are the cases which cannot be moved into tables easily. */
1206
1207 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1208 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1209 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1210 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1211 extensions->ARB_tessellation_shader = GL_TRUE;
1212 }
1213
1214 /* What this is really checking for is the ability to support multiple
1215 * invocations of a geometry shader. There is no separate cap for that, so
1216 * we check the GLSLVersion.
1217 */
1218 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1219 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1220 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1221 extensions->OES_geometry_shader = GL_TRUE;
1222 }
1223
1224 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1225 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1226 */
1227 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1228 extensions->ARB_gpu_shader5;
1229
1230 /* Maximum sample count. */
1231 {
1232 static const enum pipe_format color_formats[] = {
1233 PIPE_FORMAT_R8G8B8A8_UNORM,
1234 PIPE_FORMAT_B8G8R8A8_UNORM,
1235 PIPE_FORMAT_A8R8G8B8_UNORM,
1236 PIPE_FORMAT_A8B8G8R8_UNORM,
1237 };
1238 static const enum pipe_format depth_formats[] = {
1239 PIPE_FORMAT_Z16_UNORM,
1240 PIPE_FORMAT_Z24X8_UNORM,
1241 PIPE_FORMAT_X8Z24_UNORM,
1242 PIPE_FORMAT_Z32_UNORM,
1243 PIPE_FORMAT_Z32_FLOAT
1244 };
1245 static const enum pipe_format int_formats[] = {
1246 PIPE_FORMAT_R8G8B8A8_SINT
1247 };
1248 static const enum pipe_format void_formats[] = {
1249 PIPE_FORMAT_NONE
1250 };
1251
1252 consts->MaxSamples =
1253 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1254 color_formats, 16,
1255 PIPE_BIND_RENDER_TARGET);
1256
1257 consts->MaxImageSamples =
1258 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1259 color_formats, 16,
1260 PIPE_BIND_SHADER_IMAGE);
1261
1262 consts->MaxColorTextureSamples =
1263 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1264 color_formats, consts->MaxSamples,
1265 PIPE_BIND_SAMPLER_VIEW);
1266
1267 consts->MaxDepthTextureSamples =
1268 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1269 depth_formats, consts->MaxSamples,
1270 PIPE_BIND_SAMPLER_VIEW);
1271
1272 consts->MaxIntegerSamples =
1273 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1274 int_formats, consts->MaxSamples,
1275 PIPE_BIND_SAMPLER_VIEW);
1276
1277 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1278 consts->MaxFramebufferSamples =
1279 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1280 void_formats, 32,
1281 PIPE_BIND_RENDER_TARGET);
1282
1283 if (extensions->AMD_framebuffer_multisample_advanced) {
1284 /* AMD_framebuffer_multisample_advanced */
1285 /* This can be greater than storage samples. */
1286 consts->MaxColorFramebufferSamples =
1287 get_max_samples_for_formats_advanced(screen,
1288 ARRAY_SIZE(color_formats),
1289 color_formats, 16,
1290 consts->MaxSamples,
1291 PIPE_BIND_RENDER_TARGET);
1292
1293 /* If the driver supports N color samples, it means it supports
1294 * N samples and N storage samples. N samples >= N storage
1295 * samples.
1296 */
1297 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1298 consts->MaxDepthStencilFramebufferSamples =
1299 consts->MaxDepthTextureSamples;
1300
1301 assert(consts->MaxColorFramebufferSamples >=
1302 consts->MaxDepthStencilFramebufferSamples);
1303 assert(consts->MaxDepthStencilFramebufferSamples >=
1304 consts->MaxColorFramebufferStorageSamples);
1305
1306 consts->NumSupportedMultisampleModes = 0;
1307
1308 unsigned depth_samples_supported = 0;
1309
1310 for (unsigned samples = 2;
1311 samples <= consts->MaxDepthStencilFramebufferSamples;
1312 samples++) {
1313 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1314 PIPE_TEXTURE_2D, samples, samples,
1315 PIPE_BIND_DEPTH_STENCIL))
1316 depth_samples_supported |= 1 << samples;
1317 }
1318
1319 for (unsigned samples = 2;
1320 samples <= consts->MaxColorFramebufferSamples;
1321 samples++) {
1322 for (unsigned depth_samples = 2;
1323 depth_samples <= samples; depth_samples++) {
1324 if (!(depth_samples_supported & (1 << depth_samples)))
1325 continue;
1326
1327 for (unsigned storage_samples = 2;
1328 storage_samples <= depth_samples; storage_samples++) {
1329 if (screen->is_format_supported(screen,
1330 PIPE_FORMAT_R8G8B8A8_UNORM,
1331 PIPE_TEXTURE_2D,
1332 samples,
1333 storage_samples,
1334 PIPE_BIND_RENDER_TARGET)) {
1335 unsigned i = consts->NumSupportedMultisampleModes;
1336
1337 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1338 consts->SupportedMultisampleModes[i].NumColorSamples =
1339 samples;
1340 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1341 storage_samples;
1342 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1343 depth_samples;
1344 consts->NumSupportedMultisampleModes++;
1345 }
1346 }
1347 }
1348 }
1349 }
1350 }
1351
1352 if (consts->MaxSamples >= 2) {
1353 /* Real MSAA support */
1354 extensions->EXT_framebuffer_multisample = GL_TRUE;
1355 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1356 }
1357 else if (consts->MaxSamples > 0 &&
1358 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1359 /* fake MSAA support */
1360 consts->FakeSWMSAA = GL_TRUE;
1361 extensions->EXT_framebuffer_multisample = GL_TRUE;
1362 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1363 extensions->ARB_texture_multisample = GL_TRUE;
1364 }
1365
1366 if (consts->MaxDualSourceDrawBuffers > 0 &&
1367 !options->disable_blend_func_extended)
1368 extensions->ARB_blend_func_extended = GL_TRUE;
1369
1370 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1371 extensions->ARB_timer_query) {
1372 extensions->EXT_timer_query = GL_TRUE;
1373 }
1374
1375 if (extensions->ARB_transform_feedback2 &&
1376 extensions->ARB_draw_instanced) {
1377 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1378 }
1379 if (options->force_glsl_extensions_warn)
1380 consts->ForceGLSLExtensionsWarn = 1;
1381
1382 if (options->disable_glsl_line_continuations)
1383 consts->DisableGLSLLineContinuations = 1;
1384
1385 if (options->allow_glsl_extension_directive_midshader)
1386 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1387
1388 if (options->allow_glsl_builtin_const_expression)
1389 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1390
1391 if (options->allow_glsl_relaxed_es)
1392 consts->AllowGLSLRelaxedES = GL_TRUE;
1393
1394 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1395 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1396
1397 consts->MinMapBufferAlignment =
1398 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1399
1400 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1401 if (api == API_OPENGL_COMPAT &&
1402 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1403 extensions->ARB_texture_buffer_object = GL_FALSE;
1404
1405 if (extensions->ARB_texture_buffer_object) {
1406 consts->MaxTextureBufferSize =
1407 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1408 (1u << 31) - 1);
1409 consts->TextureBufferOffsetAlignment =
1410 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1411
1412 if (consts->TextureBufferOffsetAlignment)
1413 extensions->ARB_texture_buffer_range = GL_TRUE;
1414
1415 init_format_extensions(screen, extensions, tbo_rgb32,
1416 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1417 PIPE_BIND_SAMPLER_VIEW);
1418 }
1419
1420 extensions->OES_texture_buffer =
1421 extensions->ARB_texture_buffer_object &&
1422 extensions->ARB_texture_buffer_range &&
1423 extensions->ARB_texture_buffer_object_rgb32 &&
1424 extensions->ARB_shader_image_load_store;
1425
1426 extensions->EXT_framebuffer_sRGB =
1427 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1428 extensions->EXT_sRGB;
1429
1430 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1431 * If the number of available texture indirections is very limited, then we
1432 * prefer to disable varying packing rather than run the risk of varying
1433 * packing preventing a shader from running.
1434 */
1435 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1436 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1437 /* We can't disable varying packing if transform feedback is available,
1438 * because transform feedback code assumes a packed varying layout.
1439 */
1440 if (!extensions->EXT_transform_feedback)
1441 consts->DisableVaryingPacking = GL_TRUE;
1442 }
1443
1444 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1445 consts->DisableTransformFeedbackPacking = GL_TRUE;
1446
1447 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1448 bool coherent_fb_fetch =
1449 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1450
1451 if (max_fb_fetch_rts > 0) {
1452 extensions->KHR_blend_equation_advanced = true;
1453 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1454
1455 if (max_fb_fetch_rts >=
1456 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1457 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1458 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1459 }
1460 }
1461
1462 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1463 if (consts->MaxViewports >= 16) {
1464 if (GLSLVersion >= 400) {
1465 consts->ViewportBounds.Min = -32768.0;
1466 consts->ViewportBounds.Max = 32767.0;
1467 } else {
1468 consts->ViewportBounds.Min = -16384.0;
1469 consts->ViewportBounds.Max = 16383.0;
1470 }
1471 extensions->ARB_viewport_array = GL_TRUE;
1472 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1473 if (extensions->AMD_vertex_shader_layer)
1474 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1475 }
1476
1477 if (extensions->AMD_vertex_shader_layer &&
1478 extensions->AMD_vertex_shader_viewport_index &&
1479 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1480 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1481
1482 /* ARB_framebuffer_no_attachments */
1483 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1484 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1485 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1486 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1487 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1488
1489 /* GL_ARB_ES3_compatibility.
1490 * Check requirements for GLSL ES 3.00.
1491 */
1492 if (GLSLVersion >= 130 &&
1493 extensions->ARB_uniform_buffer_object &&
1494 extensions->NV_primitive_restart &&
1495 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1496 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1497 /* Requirements for ETC2 emulation. */
1498 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1499 PIPE_TEXTURE_2D, 0, 0,
1500 PIPE_BIND_SAMPLER_VIEW) &&
1501 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1502 PIPE_TEXTURE_2D, 0, 0,
1503 PIPE_BIND_SAMPLER_VIEW) &&
1504 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1505 PIPE_TEXTURE_2D, 0, 0,
1506 PIPE_BIND_SAMPLER_VIEW) &&
1507 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1508 PIPE_TEXTURE_2D, 0, 0,
1509 PIPE_BIND_SAMPLER_VIEW) &&
1510 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1511 PIPE_TEXTURE_2D, 0, 0,
1512 PIPE_BIND_SAMPLER_VIEW) &&
1513 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1514 PIPE_TEXTURE_2D, 0, 0,
1515 PIPE_BIND_SAMPLER_VIEW)) {
1516 extensions->ARB_ES3_compatibility = GL_TRUE;
1517 }
1518
1519 #ifdef HAVE_ST_VDPAU
1520 if (screen->get_video_param &&
1521 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1522 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1523 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1524 extensions->NV_vdpau_interop = GL_TRUE;
1525 }
1526 #endif
1527
1528 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1529 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1530 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1531 }
1532
1533 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1534 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1535 extensions->GREMEDY_string_marker = GL_TRUE;
1536
1537 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1538 int compute_supported_irs =
1539 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1540 PIPE_SHADER_CAP_SUPPORTED_IRS);
1541 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1542 (1 << PIPE_SHADER_IR_NIR))) {
1543 enum pipe_shader_ir ir =
1544 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1545 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1546 uint64_t grid_size[3], block_size[3];
1547 uint64_t max_local_size, max_threads_per_block;
1548
1549 screen->get_compute_param(screen, ir,
1550 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1551 screen->get_compute_param(screen, ir,
1552 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1553 screen->get_compute_param(screen, ir,
1554 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1555 &max_threads_per_block);
1556 screen->get_compute_param(screen, ir,
1557 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1558 &max_local_size);
1559
1560 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1561 consts->MaxComputeSharedMemorySize = max_local_size;
1562
1563 for (i = 0; i < 3; i++) {
1564 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1565 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1566 }
1567
1568 extensions->ARB_compute_shader =
1569 extensions->ARB_shader_image_load_store &&
1570 extensions->ARB_shader_atomic_counters;
1571
1572 if (extensions->ARB_compute_shader) {
1573 uint64_t max_variable_threads_per_block = 0;
1574
1575 screen->get_compute_param(screen, ir,
1576 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1577 &max_variable_threads_per_block);
1578
1579 for (i = 0; i < 3; i++) {
1580 /* Clamp the values to avoid having a local work group size
1581 * greater than the maximum number of invocations.
1582 */
1583 consts->MaxComputeVariableGroupSize[i] =
1584 MIN2(consts->MaxComputeWorkGroupSize[i],
1585 max_variable_threads_per_block);
1586 }
1587 consts->MaxComputeVariableGroupInvocations =
1588 max_variable_threads_per_block;
1589
1590 extensions->ARB_compute_variable_group_size =
1591 max_variable_threads_per_block > 0;
1592 }
1593 }
1594 }
1595
1596 extensions->ARB_texture_float =
1597 extensions->OES_texture_half_float &&
1598 extensions->OES_texture_float;
1599
1600 if (extensions->EXT_texture_filter_anisotropic &&
1601 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1602 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1603
1604 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1605
1606 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1607 * there's no clean way of telling whether we would support ES 3.1 from
1608 * here, so copy the condition from compute_version_es2 here. A lot of
1609 * these are redunant, but simpler to just have a (near-)exact copy here.
1610 */
1611 extensions->ARB_ES3_1_compatibility =
1612 extensions->ARB_ES3_compatibility &&
1613 extensions->ARB_arrays_of_arrays &&
1614 extensions->ARB_compute_shader &&
1615 extensions->ARB_draw_indirect &&
1616 extensions->ARB_explicit_uniform_location &&
1617 extensions->ARB_framebuffer_no_attachments &&
1618 extensions->ARB_shader_atomic_counters &&
1619 extensions->ARB_shader_image_load_store &&
1620 extensions->ARB_shader_image_size &&
1621 extensions->ARB_shader_storage_buffer_object &&
1622 extensions->ARB_shading_language_packing &&
1623 extensions->ARB_stencil_texturing &&
1624 extensions->ARB_texture_multisample &&
1625 extensions->ARB_gpu_shader5 &&
1626 extensions->EXT_shader_integer_mix;
1627
1628 extensions->OES_texture_cube_map_array =
1629 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1630 extensions->OES_geometry_shader &&
1631 extensions->ARB_texture_cube_map_array;
1632
1633 extensions->OES_viewport_array =
1634 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1635 extensions->OES_geometry_shader &&
1636 extensions->ARB_viewport_array;
1637
1638 extensions->OES_primitive_bounding_box =
1639 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1640
1641 consts->NoPrimitiveBoundingBoxOutput = true;
1642
1643 extensions->ANDROID_extension_pack_es31a =
1644 extensions->KHR_texture_compression_astc_ldr &&
1645 extensions->KHR_blend_equation_advanced &&
1646 extensions->OES_sample_variables &&
1647 extensions->ARB_shader_image_load_store &&
1648 extensions->ARB_texture_stencil8 &&
1649 extensions->ARB_texture_multisample &&
1650 extensions->OES_copy_image &&
1651 extensions->ARB_draw_buffers_blend &&
1652 extensions->OES_geometry_shader &&
1653 extensions->ARB_gpu_shader5 &&
1654 extensions->OES_primitive_bounding_box &&
1655 extensions->ARB_tessellation_shader &&
1656 extensions->ARB_texture_border_clamp &&
1657 extensions->OES_texture_buffer &&
1658 extensions->OES_texture_cube_map_array &&
1659 extensions->EXT_texture_sRGB_decode;
1660
1661 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1662 * before overall versions are selected. Also it's actually a subset of ES
1663 * 3.2, since it doesn't require ASTC or advanced blending.
1664 */
1665 extensions->ARB_ES3_2_compatibility =
1666 extensions->ARB_ES3_1_compatibility &&
1667 extensions->KHR_robustness &&
1668 extensions->ARB_copy_image &&
1669 extensions->ARB_draw_buffers_blend &&
1670 extensions->ARB_draw_elements_base_vertex &&
1671 extensions->OES_geometry_shader &&
1672 extensions->ARB_gpu_shader5 &&
1673 extensions->ARB_sample_shading &&
1674 extensions->ARB_tessellation_shader &&
1675 extensions->ARB_texture_border_clamp &&
1676 extensions->OES_texture_buffer &&
1677 extensions->ARB_texture_cube_map_array &&
1678 extensions->ARB_texture_stencil8 &&
1679 extensions->ARB_texture_multisample;
1680
1681 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1682 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1683 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1684 float max_dilate;
1685 bool pre_snap_triangles, pre_snap_points_lines;
1686
1687 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1688
1689 pre_snap_triangles =
1690 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1691 pre_snap_points_lines =
1692 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1693
1694 extensions->NV_conservative_raster =
1695 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1696
1697 if (extensions->NV_conservative_raster) {
1698 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1699 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1700 extensions->NV_conservative_raster_pre_snap =
1701 pre_snap_triangles && pre_snap_points_lines;
1702 }
1703 }
1704
1705 if (extensions->ARB_gl_spirv) {
1706 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1707
1708 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1709 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1710 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1711 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1712 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1713 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1714 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1715 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1716 spirv_caps->variable_pointers =
1717 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1718 spirv_caps->integer_functions2 = extensions->INTEL_shader_integer_functions2;
1719
1720 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1721 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1722 }
1723
1724 consts->AllowDrawOutOfOrder = options->allow_draw_out_of_order;
1725 }