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gallium: Add ARB_gl_spirv support
[mesa.git] / src / mesa / state_tracker / st_extensions.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "compiler/nir/nir.h"
30
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/spirv_extensions.h"
35 #include "main/version.h"
36
37 #include "pipe/p_context.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "tgsi/tgsi_from_mesa.h"
41 #include "util/u_math.h"
42
43 #include "st_context.h"
44 #include "st_debug.h"
45 #include "st_extensions.h"
46 #include "st_format.h"
47
48
49 /*
50 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
51 * avoid evaluating arguments (which are often function calls) more than once.
52 */
53
54 static unsigned _min(unsigned a, unsigned b)
55 {
56 return (a < b) ? a : b;
57 }
58
59 static float _maxf(float a, float b)
60 {
61 return (a > b) ? a : b;
62 }
63
64 static int _clamp(int a, int min, int max)
65 {
66 if (a < min)
67 return min;
68 else if (a > max)
69 return max;
70 else
71 return a;
72 }
73
74
75 /**
76 * Query driver to get implementation limits.
77 * Note that we have to limit/clamp against Mesa's internal limits too.
78 */
79 void st_init_limits(struct pipe_screen *screen,
80 struct gl_constants *c, struct gl_extensions *extensions)
81 {
82 int supported_irs;
83 unsigned sh;
84 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
88 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
89
90 c->Max3DTextureLevels
91 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
92 MAX_3D_TEXTURE_LEVELS);
93
94 c->MaxCubeTextureLevels
95 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
96 MAX_CUBE_TEXTURE_LEVELS);
97
98 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
99
100 c->MaxArrayTextureLayers
101 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
102
103 /* Define max viewport size and max renderbuffer size in terms of
104 * max texture size (note: max tex RECT size = max tex 2D size).
105 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
106 */
107 c->MaxViewportWidth =
108 c->MaxViewportHeight =
109 c->MaxRenderbufferSize = c->MaxTextureRectSize;
110
111 c->SubPixelBits =
112 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
113 c->ViewportSubpixelBits =
114 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
115
116 c->MaxDrawBuffers = c->MaxColorAttachments =
117 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
118 1, MAX_DRAW_BUFFERS);
119
120 c->MaxDualSourceDrawBuffers =
121 _clamp(screen->get_param(screen,
122 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
123 0, MAX_DRAW_BUFFERS);
124
125 c->MaxLineWidth =
126 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
127 c->MaxLineWidthAA =
128 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
129
130 c->MaxPointSize =
131 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
132 c->MaxPointSizeAA =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
134
135 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
136 * for non-aa sizes, but we can go down to 0.0 for aa points.
137 */
138 c->MinPointSize = 1.0f;
139 c->MinPointSizeAA = 0.0f;
140
141 c->MaxTextureMaxAnisotropy =
142 _maxf(2.0f,
143 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
144
145 c->MaxTextureLodBias =
146 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
147
148 c->QuadsFollowProvokingVertexConvention =
149 screen->get_param(screen,
150 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
151
152 c->MaxUniformBlockSize =
153 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
154 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
155 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
156 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
157 */
158 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
159
160 if (c->MaxUniformBlockSize < 16384) {
161 can_ubo = false;
162 }
163
164 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
165 struct gl_shader_compiler_options *options;
166 struct gl_program_constants *pc;
167 const nir_shader_compiler_options *nir_options = NULL;
168
169 if (screen->get_compiler_options) {
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 bool prefer_nir = PIPE_SHADER_IR_NIR ==
331 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_PREFERRED_IR);
332
333 /* NIR can do the lowering on our behalf and we'll get better results
334 * because it can actually optimize SSBO access.
335 */
336 options->LowerBufferInterfaceBlocks = !prefer_nir;
337 }
338
339 c->MaxUserAssignableUniformLocations =
340 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
341 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
342 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
343 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
344 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
345
346 c->GLSLOptimizeConservatively =
347 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
348 c->GLSLLowerConstArrays =
349 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
350 c->GLSLTessLevelsAsInputs =
351 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
352 c->LowerTessLevel =
353 !screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS);
354 c->LowerCsDerivedVariables =
355 !screen->get_param(screen, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED);
356 c->PrimitiveRestartForPatches =
357 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
358
359 c->MaxCombinedTextureImageUnits =
360 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
361 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
362 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
363 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
364 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
365 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
366 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
367
368 /* This depends on program constants. */
369 c->MaxTextureCoordUnits
370 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
371 MAX_TEXTURE_COORD_UNITS);
372
373 c->MaxTextureUnits =
374 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
375 c->MaxTextureCoordUnits);
376
377 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
378 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
379
380 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
381 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
382 c->MaxGeometryOutputVertices =
383 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
384 c->MaxGeometryTotalOutputComponents =
385 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
386 c->MaxGeometryShaderInvocations =
387 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
388 c->MaxTessPatchComponents =
389 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
390 MAX_VARYING) * 4;
391
392 c->MinProgramTexelOffset =
393 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
394 c->MaxProgramTexelOffset =
395 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
396
397 c->MaxProgramTextureGatherComponents =
398 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
399 c->MinProgramTextureGatherOffset =
400 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
401 c->MaxProgramTextureGatherOffset =
402 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
403
404 c->MaxTransformFeedbackBuffers =
405 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
406 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
407 MAX_FEEDBACK_BUFFERS);
408 c->MaxTransformFeedbackSeparateComponents =
409 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
410 c->MaxTransformFeedbackInterleavedComponents =
411 screen->get_param(screen,
412 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
413 c->MaxVertexStreams =
414 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
415
416 /* The vertex stream must fit into pipe_stream_output_info::stream */
417 assert(c->MaxVertexStreams <= 4);
418
419 c->MaxVertexAttribStride
420 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
421
422 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
423 * is only 16 bits.
424 */
425 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
426 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
427
428 c->StripTextureBorder = GL_TRUE;
429
430 c->GLSLSkipStrictMaxUniformLimitCheck =
431 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
432
433 c->UniformBufferOffsetAlignment =
434 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
435
436 if (can_ubo) {
437 extensions->ARB_uniform_buffer_object = GL_TRUE;
438 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
439 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
440 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
441 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
442 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
443 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
444 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
445 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
446 }
447
448 c->GLSLFragCoordIsSysVal =
449 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
450 c->GLSLPointCoordIsSysVal =
451 screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
452 c->GLSLFrontFacingIsSysVal =
453 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
454
455 /* GL_ARB_get_program_binary */
456 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
457 c->NumProgramBinaryFormats = 1;
458
459 c->MaxAtomicBufferBindings =
460 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
461 c->MaxAtomicBufferSize =
462 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
463
464 c->MaxCombinedAtomicBuffers =
465 MIN2(screen->get_param(screen,
466 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
467 MAX_COMBINED_ATOMIC_BUFFERS);
468 if (!c->MaxCombinedAtomicBuffers) {
469 c->MaxCombinedAtomicBuffers =
470 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
471 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
472 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
473 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
474 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
475 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
476 }
477
478 c->MaxCombinedAtomicCounters =
479 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
480 if (!c->MaxCombinedAtomicCounters)
481 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
482
483 if (c->MaxCombinedAtomicBuffers > 0) {
484 extensions->ARB_shader_atomic_counters = GL_TRUE;
485 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
486 }
487
488 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
489 c->ShaderStorageBufferOffsetAlignment =
490 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
491 if (c->ShaderStorageBufferOffsetAlignment) {
492 c->MaxCombinedShaderStorageBlocks =
493 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
494 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
495 if (!c->MaxCombinedShaderStorageBlocks) {
496 c->MaxCombinedShaderStorageBlocks =
497 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
498 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
499 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
500 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
501 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
502 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
503 }
504 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
505
506 c->MaxCombinedShaderOutputResources +=
507 c->MaxCombinedShaderStorageBlocks;
508 c->MaxShaderStorageBlockSize =
509 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
510 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
511 }
512
513 c->MaxCombinedImageUniforms =
514 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
515 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
516 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
517 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
518 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
519 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
520 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
521 c->MaxImageUnits = MAX_IMAGE_UNITS;
522 if (c->MaxCombinedImageUniforms) {
523 extensions->ARB_shader_image_load_store = GL_TRUE;
524 extensions->ARB_shader_image_size = GL_TRUE;
525 }
526
527 /* ARB_framebuffer_no_attachments */
528 c->MaxFramebufferWidth = c->MaxViewportWidth;
529 c->MaxFramebufferHeight = c->MaxViewportHeight;
530 /* NOTE: we cheat here a little by assuming that
531 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
532 * number of layers as we need, although we technically
533 * could have more the generality is not really useful
534 * in practicality.
535 */
536 c->MaxFramebufferLayers =
537 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
538
539 c->MaxWindowRectangles =
540 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
541
542 c->SparseBufferPageSize =
543 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
544
545 c->AllowMappedBuffersDuringExecution =
546 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
547
548 c->UseSTD430AsDefaultPacking =
549 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
550
551 c->MaxSubpixelPrecisionBiasBits =
552 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
553
554 c->ConservativeRasterDilateRange[0] =
555 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
556 c->ConservativeRasterDilateRange[1] =
557 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
558 c->ConservativeRasterDilateGranularity =
559 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
560
561 /* limit the max combined shader output resources to a driver limit */
562 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
563 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
564 c->MaxCombinedShaderOutputResources = temp;
565 }
566
567
568 /**
569 * Given a member \c x of struct gl_extensions, return offset of
570 * \c x in bytes.
571 */
572 #define o(x) offsetof(struct gl_extensions, x)
573
574
575 struct st_extension_cap_mapping {
576 int extension_offset;
577 int cap;
578 };
579
580 struct st_extension_format_mapping {
581 int extension_offset[2];
582 enum pipe_format format[32];
583
584 /* If TRUE, at least one format must be supported for the extensions to be
585 * advertised. If FALSE, all the formats must be supported. */
586 GLboolean need_at_least_one;
587 };
588
589 /**
590 * Enable extensions if certain pipe formats are supported by the driver.
591 * What extensions will be enabled and what formats must be supported is
592 * described by the array of st_extension_format_mapping.
593 *
594 * target and bind_flags are passed to is_format_supported.
595 */
596 static void
597 init_format_extensions(struct pipe_screen *screen,
598 struct gl_extensions *extensions,
599 const struct st_extension_format_mapping *mapping,
600 unsigned num_mappings,
601 enum pipe_texture_target target,
602 unsigned bind_flags)
603 {
604 GLboolean *extension_table = (GLboolean *) extensions;
605 unsigned i;
606 int j;
607 int num_formats = ARRAY_SIZE(mapping->format);
608 int num_ext = ARRAY_SIZE(mapping->extension_offset);
609
610 for (i = 0; i < num_mappings; i++) {
611 int num_supported = 0;
612
613 /* Examine each format in the list. */
614 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
615 if (screen->is_format_supported(screen, mapping[i].format[j],
616 target, 0, 0, bind_flags)) {
617 num_supported++;
618 }
619 }
620
621 if (!num_supported ||
622 (!mapping[i].need_at_least_one && num_supported != j)) {
623 continue;
624 }
625
626 /* Enable all extensions in the list. */
627 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
628 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
629 }
630 }
631
632
633 /**
634 * Given a list of formats and bind flags, return the maximum number
635 * of samples supported by any of those formats.
636 */
637 static unsigned
638 get_max_samples_for_formats(struct pipe_screen *screen,
639 unsigned num_formats,
640 const enum pipe_format *formats,
641 unsigned max_samples,
642 unsigned bind)
643 {
644 unsigned i, f;
645
646 for (i = max_samples; i > 0; --i) {
647 for (f = 0; f < num_formats; f++) {
648 if (screen->is_format_supported(screen, formats[f],
649 PIPE_TEXTURE_2D, i, i, bind)) {
650 return i;
651 }
652 }
653 }
654 return 0;
655 }
656
657 static unsigned
658 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
659 unsigned num_formats,
660 const enum pipe_format *formats,
661 unsigned max_samples,
662 unsigned num_storage_samples,
663 unsigned bind)
664 {
665 unsigned i, f;
666
667 for (i = max_samples; i > 0; --i) {
668 for (f = 0; f < num_formats; f++) {
669 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
670 i, num_storage_samples, bind)) {
671 return i;
672 }
673 }
674 }
675 return 0;
676 }
677
678 /**
679 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
680 * which GL extensions are supported.
681 * Quite a few extensions are always supported because they are standard
682 * features or can be built on top of other gallium features.
683 * Some fine tuning may still be needed.
684 */
685 void st_init_extensions(struct pipe_screen *screen,
686 struct gl_constants *consts,
687 struct gl_extensions *extensions,
688 struct st_config_options *options,
689 gl_api api)
690 {
691 unsigned i;
692 GLboolean *extension_table = (GLboolean *) extensions;
693
694 static const struct st_extension_cap_mapping cap_mapping[] = {
695 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
696 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
697 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
698 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
699 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
700 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
701 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
702 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
703 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
704 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
705 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
706 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
707 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
708 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
709 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
710 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
711 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
712 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
713 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
714 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
715 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
716 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
717 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
718 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
719 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
720 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
721 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
722 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
723 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
724 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
725 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
726 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
727 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
728 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
729 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
730 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
731 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
732 { o(EXT_shader_image_load_store), PIPE_CAP_TGSI_ATOMINC_WRAP },
733 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
734 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
735 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
736 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
737 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
738 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
739 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
740 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
741 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
742 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
743 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
744 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
745 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
746 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
747 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
748 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
749 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
750 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
751
752 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
753 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
754 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
755 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
756 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
757 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
758 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
759 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
760 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
761 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
762 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
763 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
764 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
765 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
766 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
767 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
768 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
769
770 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
771 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
772 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
773 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
774 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
775 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
776 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
777 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
778 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
779 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
780 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
781 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
782 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
783 { o(NV_shader_atomic_float), PIPE_CAP_TGSI_ATOMFADD },
784 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
785 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
786 /* GL_NV_point_sprite is not supported by gallium because we don't
787 * support the GL_POINT_SPRITE_R_MODE_NV option. */
788
789 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
790 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
791 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
792 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
793 };
794
795 /* Required: render target and sampler support */
796 static const struct st_extension_format_mapping rendertarget_mapping[] = {
797 { { o(OES_texture_float) },
798 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
799
800 { { o(OES_texture_half_float) },
801 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
802
803 { { o(ARB_texture_rgb10_a2ui) },
804 { PIPE_FORMAT_R10G10B10A2_UINT,
805 PIPE_FORMAT_B10G10R10A2_UINT },
806 GL_TRUE }, /* at least one format must be supported */
807
808 { { o(EXT_sRGB) },
809 { PIPE_FORMAT_A8B8G8R8_SRGB,
810 PIPE_FORMAT_B8G8R8A8_SRGB,
811 PIPE_FORMAT_R8G8B8A8_SRGB },
812 GL_TRUE }, /* at least one format must be supported */
813
814 { { o(EXT_packed_float) },
815 { PIPE_FORMAT_R11G11B10_FLOAT } },
816
817 { { o(EXT_texture_integer) },
818 { PIPE_FORMAT_R32G32B32A32_UINT,
819 PIPE_FORMAT_R32G32B32A32_SINT } },
820
821 { { o(ARB_texture_rg) },
822 { PIPE_FORMAT_R8_UNORM,
823 PIPE_FORMAT_R8G8_UNORM } },
824
825 { { o(EXT_render_snorm) },
826 { PIPE_FORMAT_R8_SNORM,
827 PIPE_FORMAT_R8G8_SNORM,
828 PIPE_FORMAT_R8G8B8A8_SNORM,
829 PIPE_FORMAT_R16_SNORM,
830 PIPE_FORMAT_R16G16_SNORM,
831 PIPE_FORMAT_R16G16B16A16_SNORM } },
832 };
833
834 /* Required: render target, sampler, and blending */
835 static const struct st_extension_format_mapping rt_blendable[] = {
836 { { o(EXT_float_blend) },
837 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
838 };
839
840 /* Required: depth stencil and sampler support */
841 static const struct st_extension_format_mapping depthstencil_mapping[] = {
842 { { o(ARB_depth_buffer_float) },
843 { PIPE_FORMAT_Z32_FLOAT,
844 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
845 };
846
847 /* Required: sampler support */
848 static const struct st_extension_format_mapping texture_mapping[] = {
849 { { o(ARB_texture_compression_rgtc) },
850 { PIPE_FORMAT_RGTC1_UNORM,
851 PIPE_FORMAT_RGTC1_SNORM,
852 PIPE_FORMAT_RGTC2_UNORM,
853 PIPE_FORMAT_RGTC2_SNORM } },
854
855 { { o(EXT_texture_compression_latc) },
856 { PIPE_FORMAT_LATC1_UNORM,
857 PIPE_FORMAT_LATC1_SNORM,
858 PIPE_FORMAT_LATC2_UNORM,
859 PIPE_FORMAT_LATC2_SNORM } },
860
861 { { o(EXT_texture_compression_s3tc),
862 o(ANGLE_texture_compression_dxt) },
863 { PIPE_FORMAT_DXT1_RGB,
864 PIPE_FORMAT_DXT1_RGBA,
865 PIPE_FORMAT_DXT3_RGBA,
866 PIPE_FORMAT_DXT5_RGBA } },
867
868 { { o(EXT_texture_compression_s3tc_srgb) },
869 { PIPE_FORMAT_DXT1_SRGB,
870 PIPE_FORMAT_DXT1_SRGBA,
871 PIPE_FORMAT_DXT3_SRGBA,
872 PIPE_FORMAT_DXT5_SRGBA } },
873
874 { { o(ARB_texture_compression_bptc) },
875 { PIPE_FORMAT_BPTC_RGBA_UNORM,
876 PIPE_FORMAT_BPTC_SRGBA,
877 PIPE_FORMAT_BPTC_RGB_FLOAT,
878 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
879
880 { { o(KHR_texture_compression_astc_ldr),
881 o(KHR_texture_compression_astc_sliced_3d) },
882 { PIPE_FORMAT_ASTC_4x4,
883 PIPE_FORMAT_ASTC_5x4,
884 PIPE_FORMAT_ASTC_5x5,
885 PIPE_FORMAT_ASTC_6x5,
886 PIPE_FORMAT_ASTC_6x6,
887 PIPE_FORMAT_ASTC_8x5,
888 PIPE_FORMAT_ASTC_8x6,
889 PIPE_FORMAT_ASTC_8x8,
890 PIPE_FORMAT_ASTC_10x5,
891 PIPE_FORMAT_ASTC_10x6,
892 PIPE_FORMAT_ASTC_10x8,
893 PIPE_FORMAT_ASTC_10x10,
894 PIPE_FORMAT_ASTC_12x10,
895 PIPE_FORMAT_ASTC_12x12,
896 PIPE_FORMAT_ASTC_4x4_SRGB,
897 PIPE_FORMAT_ASTC_5x4_SRGB,
898 PIPE_FORMAT_ASTC_5x5_SRGB,
899 PIPE_FORMAT_ASTC_6x5_SRGB,
900 PIPE_FORMAT_ASTC_6x6_SRGB,
901 PIPE_FORMAT_ASTC_8x5_SRGB,
902 PIPE_FORMAT_ASTC_8x6_SRGB,
903 PIPE_FORMAT_ASTC_8x8_SRGB,
904 PIPE_FORMAT_ASTC_10x5_SRGB,
905 PIPE_FORMAT_ASTC_10x6_SRGB,
906 PIPE_FORMAT_ASTC_10x8_SRGB,
907 PIPE_FORMAT_ASTC_10x10_SRGB,
908 PIPE_FORMAT_ASTC_12x10_SRGB,
909 PIPE_FORMAT_ASTC_12x12_SRGB } },
910
911 /* ASTC software fallback support. */
912 { { o(KHR_texture_compression_astc_ldr),
913 o(KHR_texture_compression_astc_sliced_3d) },
914 { PIPE_FORMAT_R8G8B8A8_UNORM,
915 PIPE_FORMAT_R8G8B8A8_SRGB } },
916
917 { { o(EXT_texture_shared_exponent) },
918 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
919
920 { { o(EXT_texture_snorm) },
921 { PIPE_FORMAT_R8G8B8A8_SNORM } },
922
923 { { o(EXT_texture_sRGB),
924 o(EXT_texture_sRGB_decode) },
925 { PIPE_FORMAT_A8B8G8R8_SRGB,
926 PIPE_FORMAT_B8G8R8A8_SRGB,
927 PIPE_FORMAT_A8R8G8B8_SRGB,
928 PIPE_FORMAT_R8G8B8A8_SRGB},
929 GL_TRUE }, /* at least one format must be supported */
930
931 { { o(EXT_texture_sRGB_R8) },
932 { PIPE_FORMAT_R8_SRGB },
933 GL_TRUE },
934
935 { { o(EXT_texture_type_2_10_10_10_REV) },
936 { PIPE_FORMAT_R10G10B10A2_UNORM,
937 PIPE_FORMAT_B10G10R10A2_UNORM },
938 GL_TRUE }, /* at least one format must be supported */
939
940 { { o(ATI_texture_compression_3dc) },
941 { PIPE_FORMAT_LATC2_UNORM } },
942
943 { { o(MESA_ycbcr_texture) },
944 { PIPE_FORMAT_UYVY,
945 PIPE_FORMAT_YUYV },
946 GL_TRUE }, /* at least one format must be supported */
947
948 { { o(OES_compressed_ETC1_RGB8_texture) },
949 { PIPE_FORMAT_ETC1_RGB8,
950 PIPE_FORMAT_R8G8B8A8_UNORM },
951 GL_TRUE }, /* at least one format must be supported */
952
953 { { o(ARB_stencil_texturing),
954 o(ARB_texture_stencil8) },
955 { PIPE_FORMAT_X24S8_UINT,
956 PIPE_FORMAT_S8X24_UINT },
957 GL_TRUE }, /* at least one format must be supported */
958
959 { { o(AMD_compressed_ATC_texture) },
960 { PIPE_FORMAT_ATC_RGB,
961 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
962 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
963 };
964
965 /* Required: vertex fetch support. */
966 static const struct st_extension_format_mapping vertex_mapping[] = {
967 { { o(EXT_vertex_array_bgra) },
968 { PIPE_FORMAT_B8G8R8A8_UNORM } },
969 { { o(ARB_vertex_type_2_10_10_10_rev) },
970 { PIPE_FORMAT_R10G10B10A2_UNORM,
971 PIPE_FORMAT_B10G10R10A2_UNORM,
972 PIPE_FORMAT_R10G10B10A2_SNORM,
973 PIPE_FORMAT_B10G10R10A2_SNORM,
974 PIPE_FORMAT_R10G10B10A2_USCALED,
975 PIPE_FORMAT_B10G10R10A2_USCALED,
976 PIPE_FORMAT_R10G10B10A2_SSCALED,
977 PIPE_FORMAT_B10G10R10A2_SSCALED } },
978 { { o(ARB_vertex_type_10f_11f_11f_rev) },
979 { PIPE_FORMAT_R11G11B10_FLOAT } },
980 };
981
982 static const struct st_extension_format_mapping tbo_rgb32[] = {
983 { {o(ARB_texture_buffer_object_rgb32) },
984 { PIPE_FORMAT_R32G32B32_FLOAT,
985 PIPE_FORMAT_R32G32B32_UINT,
986 PIPE_FORMAT_R32G32B32_SINT,
987 } },
988 };
989
990 /*
991 * Extensions that are supported by all Gallium drivers:
992 */
993 extensions->ARB_ES2_compatibility = GL_TRUE;
994 extensions->ARB_depth_texture = GL_TRUE;
995 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
996 extensions->ARB_explicit_attrib_location = GL_TRUE;
997 extensions->ARB_explicit_uniform_location = GL_TRUE;
998 extensions->ARB_fragment_coord_conventions = GL_TRUE;
999 extensions->ARB_fragment_program = GL_TRUE;
1000 extensions->ARB_fragment_program_shadow = GL_TRUE;
1001 extensions->ARB_fragment_shader = GL_TRUE;
1002 extensions->ARB_half_float_vertex = GL_TRUE;
1003 extensions->ARB_internalformat_query = GL_TRUE;
1004 extensions->ARB_internalformat_query2 = GL_TRUE;
1005 extensions->ARB_map_buffer_range = GL_TRUE;
1006 extensions->ARB_shadow = GL_TRUE;
1007 extensions->ARB_sync = GL_TRUE;
1008 extensions->ARB_texture_border_clamp = GL_TRUE;
1009 extensions->ARB_texture_cube_map = GL_TRUE;
1010 extensions->ARB_texture_env_combine = GL_TRUE;
1011 extensions->ARB_texture_env_crossbar = GL_TRUE;
1012 extensions->ARB_texture_env_dot3 = GL_TRUE;
1013 extensions->ARB_vertex_program = GL_TRUE;
1014 extensions->ARB_vertex_shader = GL_TRUE;
1015
1016 extensions->EXT_blend_color = GL_TRUE;
1017 extensions->EXT_blend_func_separate = GL_TRUE;
1018 extensions->EXT_blend_minmax = GL_TRUE;
1019 extensions->EXT_gpu_program_parameters = GL_TRUE;
1020 extensions->EXT_pixel_buffer_object = GL_TRUE;
1021 extensions->EXT_point_parameters = GL_TRUE;
1022 extensions->EXT_provoking_vertex = GL_TRUE;
1023 extensions->EXT_stencil_two_side = GL_TRUE;
1024 extensions->EXT_texture_env_dot3 = GL_TRUE;
1025
1026 extensions->ATI_fragment_shader = GL_TRUE;
1027 extensions->ATI_texture_env_combine3 = GL_TRUE;
1028
1029 extensions->MESA_pack_invert = GL_TRUE;
1030
1031 extensions->NV_fog_distance = GL_TRUE;
1032 extensions->NV_texture_env_combine4 = GL_TRUE;
1033 extensions->NV_texture_rectangle = GL_TRUE;
1034
1035 extensions->OES_EGL_image = GL_TRUE;
1036 extensions->OES_EGL_image_external = GL_TRUE;
1037 extensions->OES_draw_texture = GL_TRUE;
1038
1039 /* Expose the extensions which directly correspond to gallium caps. */
1040 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1041 if (screen->get_param(screen, cap_mapping[i].cap)) {
1042 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1043 }
1044 }
1045
1046 /* Expose the extensions which directly correspond to gallium formats. */
1047 init_format_extensions(screen, extensions, rendertarget_mapping,
1048 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1049 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1050 init_format_extensions(screen, extensions, rt_blendable,
1051 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1052 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1053 PIPE_BIND_BLENDABLE);
1054 init_format_extensions(screen, extensions, depthstencil_mapping,
1055 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1056 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1057 init_format_extensions(screen, extensions, texture_mapping,
1058 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1059 PIPE_BIND_SAMPLER_VIEW);
1060 init_format_extensions(screen, extensions, vertex_mapping,
1061 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1062 PIPE_BIND_VERTEX_BUFFER);
1063
1064 /* Figure out GLSL support and set GLSLVersion to it. */
1065 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1066 consts->GLSLVersionCompat =
1067 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1068
1069 const unsigned ESSLVersion =
1070 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1071 const unsigned GLSLVersion =
1072 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1073 consts->GLSLVersion;
1074
1075 _mesa_override_glsl_version(consts);
1076
1077 if (options->force_glsl_version > 0 &&
1078 options->force_glsl_version <= GLSLVersion) {
1079 consts->ForceGLSLVersion = options->force_glsl_version;
1080 }
1081
1082 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1083
1084 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1085
1086 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1087
1088 consts->dri_config_options_sha1 = options->config_options_sha1;
1089
1090 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1091
1092 /* Technically we are turning on the EXT_gpu_shader5 extension,
1093 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1094 * switches on EXT_gpu_shader5:
1095 */
1096 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1097 extensions->ARB_gpu_shader5 = GL_TRUE;
1098
1099 if (GLSLVersion >= 400)
1100 extensions->ARB_gpu_shader5 = GL_TRUE;
1101 if (GLSLVersion >= 410)
1102 extensions->ARB_shader_precision = GL_TRUE;
1103
1104 /* This extension needs full OpenGL 3.2, but we don't know if that's
1105 * supported at this point. Only check the GLSL version. */
1106 if (GLSLVersion >= 150 &&
1107 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1108 extensions->AMD_vertex_shader_layer = GL_TRUE;
1109 }
1110
1111 if (GLSLVersion >= 140) {
1112 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1113 * we can always expose it if the driver can do 140. Supporting
1114 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1115 * pipe cap.
1116 */
1117 extensions->EXT_gpu_shader4 = GL_TRUE;
1118 extensions->EXT_texture_buffer_object = GL_TRUE;
1119
1120 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1121 extensions->ARB_enhanced_layouts = GL_TRUE;
1122 }
1123
1124 if (GLSLVersion >= 130) {
1125 consts->NativeIntegers = GL_TRUE;
1126 consts->MaxClipPlanes = 8;
1127
1128 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1129 consts->VertexID_is_zero_based = GL_TRUE;
1130 }
1131
1132 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1133 extensions->ARB_conservative_depth = GL_TRUE;
1134 extensions->ARB_shading_language_packing = GL_TRUE;
1135 extensions->OES_depth_texture_cube_map = GL_TRUE;
1136 extensions->ARB_shading_language_420pack = GL_TRUE;
1137 extensions->ARB_texture_query_levels = GL_TRUE;
1138
1139 extensions->ARB_shader_bit_encoding = GL_TRUE;
1140
1141 extensions->EXT_shader_integer_mix = GL_TRUE;
1142 extensions->ARB_arrays_of_arrays = GL_TRUE;
1143 extensions->MESA_shader_integer_functions = GL_TRUE;
1144 } else {
1145 /* Optional integer support for GLSL 1.2. */
1146 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1147 PIPE_SHADER_CAP_INTEGERS) &&
1148 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1149 PIPE_SHADER_CAP_INTEGERS)) {
1150 consts->NativeIntegers = GL_TRUE;
1151
1152 extensions->EXT_shader_integer_mix = GL_TRUE;
1153 }
1154
1155 /* Integer textures make no sense before GLSL 1.30 */
1156 extensions->EXT_texture_integer = GL_FALSE;
1157 }
1158
1159 consts->GLSLZeroInit = options->glsl_zero_init;
1160
1161 consts->VendorOverride = options->force_gl_vendor;
1162
1163 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1164
1165 /* Below are the cases which cannot be moved into tables easily. */
1166
1167 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1168 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1169 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1170 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1171 extensions->ARB_tessellation_shader = GL_TRUE;
1172 }
1173
1174 /* What this is really checking for is the ability to support multiple
1175 * invocations of a geometry shader. There is no separate cap for that, so
1176 * we check the GLSLVersion.
1177 */
1178 if (GLSLVersion >= 400 &&
1179 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1180 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1181 extensions->OES_geometry_shader = GL_TRUE;
1182 }
1183
1184 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1185 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1186 */
1187 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1188 extensions->ARB_gpu_shader5;
1189
1190 /* Maximum sample count. */
1191 {
1192 static const enum pipe_format color_formats[] = {
1193 PIPE_FORMAT_R8G8B8A8_UNORM,
1194 PIPE_FORMAT_B8G8R8A8_UNORM,
1195 PIPE_FORMAT_A8R8G8B8_UNORM,
1196 PIPE_FORMAT_A8B8G8R8_UNORM,
1197 };
1198 static const enum pipe_format depth_formats[] = {
1199 PIPE_FORMAT_Z16_UNORM,
1200 PIPE_FORMAT_Z24X8_UNORM,
1201 PIPE_FORMAT_X8Z24_UNORM,
1202 PIPE_FORMAT_Z32_UNORM,
1203 PIPE_FORMAT_Z32_FLOAT
1204 };
1205 static const enum pipe_format int_formats[] = {
1206 PIPE_FORMAT_R8G8B8A8_SINT
1207 };
1208 static const enum pipe_format void_formats[] = {
1209 PIPE_FORMAT_NONE
1210 };
1211
1212 consts->MaxSamples =
1213 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1214 color_formats, 16,
1215 PIPE_BIND_RENDER_TARGET);
1216
1217 consts->MaxImageSamples =
1218 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1219 color_formats, 16,
1220 PIPE_BIND_SHADER_IMAGE);
1221
1222 consts->MaxColorTextureSamples =
1223 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1224 color_formats, consts->MaxSamples,
1225 PIPE_BIND_SAMPLER_VIEW);
1226
1227 consts->MaxDepthTextureSamples =
1228 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1229 depth_formats, consts->MaxSamples,
1230 PIPE_BIND_SAMPLER_VIEW);
1231
1232 consts->MaxIntegerSamples =
1233 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1234 int_formats, consts->MaxSamples,
1235 PIPE_BIND_SAMPLER_VIEW);
1236
1237 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1238 consts->MaxFramebufferSamples =
1239 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1240 void_formats, 32,
1241 PIPE_BIND_RENDER_TARGET);
1242
1243 if (extensions->AMD_framebuffer_multisample_advanced) {
1244 /* AMD_framebuffer_multisample_advanced */
1245 /* This can be greater than storage samples. */
1246 consts->MaxColorFramebufferSamples =
1247 get_max_samples_for_formats_advanced(screen,
1248 ARRAY_SIZE(color_formats),
1249 color_formats, 16,
1250 consts->MaxSamples,
1251 PIPE_BIND_RENDER_TARGET);
1252
1253 /* If the driver supports N color samples, it means it supports
1254 * N samples and N storage samples. N samples >= N storage
1255 * samples.
1256 */
1257 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1258 consts->MaxDepthStencilFramebufferSamples =
1259 consts->MaxDepthTextureSamples;
1260
1261 assert(consts->MaxColorFramebufferSamples >=
1262 consts->MaxDepthStencilFramebufferSamples);
1263 assert(consts->MaxDepthStencilFramebufferSamples >=
1264 consts->MaxColorFramebufferStorageSamples);
1265
1266 consts->NumSupportedMultisampleModes = 0;
1267
1268 unsigned depth_samples_supported = 0;
1269
1270 for (unsigned samples = 2;
1271 samples <= consts->MaxDepthStencilFramebufferSamples;
1272 samples++) {
1273 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1274 PIPE_TEXTURE_2D, samples, samples,
1275 PIPE_BIND_DEPTH_STENCIL))
1276 depth_samples_supported |= 1 << samples;
1277 }
1278
1279 for (unsigned samples = 2;
1280 samples <= consts->MaxColorFramebufferSamples;
1281 samples++) {
1282 for (unsigned depth_samples = 2;
1283 depth_samples <= samples; depth_samples++) {
1284 if (!(depth_samples_supported & (1 << depth_samples)))
1285 continue;
1286
1287 for (unsigned storage_samples = 2;
1288 storage_samples <= depth_samples; storage_samples++) {
1289 if (screen->is_format_supported(screen,
1290 PIPE_FORMAT_R8G8B8A8_UNORM,
1291 PIPE_TEXTURE_2D,
1292 samples,
1293 storage_samples,
1294 PIPE_BIND_RENDER_TARGET)) {
1295 unsigned i = consts->NumSupportedMultisampleModes;
1296
1297 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1298 consts->SupportedMultisampleModes[i].NumColorSamples =
1299 samples;
1300 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1301 storage_samples;
1302 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1303 depth_samples;
1304 consts->NumSupportedMultisampleModes++;
1305 }
1306 }
1307 }
1308 }
1309 }
1310 }
1311
1312 if (consts->MaxSamples >= 2) {
1313 /* Real MSAA support */
1314 extensions->EXT_framebuffer_multisample = GL_TRUE;
1315 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1316 }
1317 else if (consts->MaxSamples > 0 &&
1318 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1319 /* fake MSAA support */
1320 consts->FakeSWMSAA = GL_TRUE;
1321 extensions->EXT_framebuffer_multisample = GL_TRUE;
1322 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1323 extensions->ARB_texture_multisample = GL_TRUE;
1324 }
1325
1326 if (consts->MaxDualSourceDrawBuffers > 0 &&
1327 !options->disable_blend_func_extended)
1328 extensions->ARB_blend_func_extended = GL_TRUE;
1329
1330 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1331 extensions->ARB_timer_query) {
1332 extensions->EXT_timer_query = GL_TRUE;
1333 }
1334
1335 if (extensions->ARB_transform_feedback2 &&
1336 extensions->ARB_draw_instanced) {
1337 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1338 }
1339 if (options->force_glsl_extensions_warn)
1340 consts->ForceGLSLExtensionsWarn = 1;
1341
1342 if (options->disable_glsl_line_continuations)
1343 consts->DisableGLSLLineContinuations = 1;
1344
1345 if (options->allow_glsl_extension_directive_midshader)
1346 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1347
1348 if (options->allow_glsl_builtin_const_expression)
1349 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1350
1351 if (options->allow_glsl_relaxed_es)
1352 consts->AllowGLSLRelaxedES = GL_TRUE;
1353
1354 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1355 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1356
1357 consts->MinMapBufferAlignment =
1358 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1359
1360 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1361 if (api == API_OPENGL_COMPAT &&
1362 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1363 extensions->ARB_texture_buffer_object = GL_FALSE;
1364
1365 if (extensions->ARB_texture_buffer_object) {
1366 consts->MaxTextureBufferSize =
1367 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1368 (1u << 31) - 1);
1369 consts->TextureBufferOffsetAlignment =
1370 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1371
1372 if (consts->TextureBufferOffsetAlignment)
1373 extensions->ARB_texture_buffer_range = GL_TRUE;
1374
1375 init_format_extensions(screen, extensions, tbo_rgb32,
1376 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1377 PIPE_BIND_SAMPLER_VIEW);
1378 }
1379
1380 extensions->OES_texture_buffer =
1381 extensions->ARB_texture_buffer_object &&
1382 extensions->ARB_texture_buffer_range &&
1383 extensions->ARB_texture_buffer_object_rgb32 &&
1384 extensions->ARB_shader_image_load_store;
1385
1386 extensions->EXT_framebuffer_sRGB =
1387 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1388 extensions->EXT_sRGB;
1389
1390 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1391 * If the number of available texture indirections is very limited, then we
1392 * prefer to disable varying packing rather than run the risk of varying
1393 * packing preventing a shader from running.
1394 */
1395 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1396 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1397 /* We can't disable varying packing if transform feedback is available,
1398 * because transform feedback code assumes a packed varying layout.
1399 */
1400 if (!extensions->EXT_transform_feedback)
1401 consts->DisableVaryingPacking = GL_TRUE;
1402 }
1403
1404 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1405 bool coherent_fb_fetch =
1406 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1407
1408 if (max_fb_fetch_rts > 0) {
1409 extensions->KHR_blend_equation_advanced = true;
1410 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1411
1412 if (max_fb_fetch_rts >=
1413 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1414 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1415 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1416 }
1417 }
1418
1419 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1420 if (consts->MaxViewports >= 16) {
1421 if (GLSLVersion >= 400) {
1422 consts->ViewportBounds.Min = -32768.0;
1423 consts->ViewportBounds.Max = 32767.0;
1424 } else {
1425 consts->ViewportBounds.Min = -16384.0;
1426 consts->ViewportBounds.Max = 16383.0;
1427 }
1428 extensions->ARB_viewport_array = GL_TRUE;
1429 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1430 if (extensions->AMD_vertex_shader_layer)
1431 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1432 }
1433
1434 if (extensions->AMD_vertex_shader_layer &&
1435 extensions->AMD_vertex_shader_viewport_index &&
1436 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1437 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1438
1439 /* ARB_framebuffer_no_attachments */
1440 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1441 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1442 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1443 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1444 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1445
1446 /* GL_ARB_ES3_compatibility.
1447 * Check requirements for GLSL ES 3.00.
1448 */
1449 if (GLSLVersion >= 130 &&
1450 extensions->ARB_uniform_buffer_object &&
1451 extensions->ARB_shader_bit_encoding &&
1452 extensions->NV_primitive_restart &&
1453 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1454 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1455 /* Requirements for ETC2 emulation. */
1456 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1457 PIPE_TEXTURE_2D, 0, 0,
1458 PIPE_BIND_SAMPLER_VIEW) &&
1459 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1460 PIPE_TEXTURE_2D, 0, 0,
1461 PIPE_BIND_SAMPLER_VIEW) &&
1462 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1463 PIPE_TEXTURE_2D, 0, 0,
1464 PIPE_BIND_SAMPLER_VIEW) &&
1465 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1466 PIPE_TEXTURE_2D, 0, 0,
1467 PIPE_BIND_SAMPLER_VIEW) &&
1468 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1469 PIPE_TEXTURE_2D, 0, 0,
1470 PIPE_BIND_SAMPLER_VIEW) &&
1471 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1472 PIPE_TEXTURE_2D, 0, 0,
1473 PIPE_BIND_SAMPLER_VIEW)) {
1474 extensions->ARB_ES3_compatibility = GL_TRUE;
1475 }
1476
1477 #ifdef HAVE_ST_VDPAU
1478 if (screen->get_video_param &&
1479 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1480 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1481 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1482 extensions->NV_vdpau_interop = GL_TRUE;
1483 }
1484 #endif
1485
1486 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1487 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1488 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1489 }
1490
1491 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1492 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1493 extensions->GREMEDY_string_marker = GL_TRUE;
1494
1495 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1496 int compute_supported_irs =
1497 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1498 PIPE_SHADER_CAP_SUPPORTED_IRS);
1499 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1500 (1 << PIPE_SHADER_IR_NIR))) {
1501 enum pipe_shader_ir ir =
1502 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1503 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1504 uint64_t grid_size[3], block_size[3];
1505 uint64_t max_local_size, max_threads_per_block;
1506
1507 screen->get_compute_param(screen, ir,
1508 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1509 screen->get_compute_param(screen, ir,
1510 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1511 screen->get_compute_param(screen, ir,
1512 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1513 &max_threads_per_block);
1514 screen->get_compute_param(screen, ir,
1515 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1516 &max_local_size);
1517
1518 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1519 consts->MaxComputeSharedMemorySize = max_local_size;
1520
1521 for (i = 0; i < 3; i++) {
1522 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1523 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1524 }
1525
1526 extensions->ARB_compute_shader =
1527 extensions->ARB_shader_image_load_store &&
1528 extensions->ARB_shader_atomic_counters;
1529
1530 if (extensions->ARB_compute_shader) {
1531 uint64_t max_variable_threads_per_block = 0;
1532
1533 screen->get_compute_param(screen, ir,
1534 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1535 &max_variable_threads_per_block);
1536
1537 for (i = 0; i < 3; i++) {
1538 /* Clamp the values to avoid having a local work group size
1539 * greater than the maximum number of invocations.
1540 */
1541 consts->MaxComputeVariableGroupSize[i] =
1542 MIN2(consts->MaxComputeWorkGroupSize[i],
1543 max_variable_threads_per_block);
1544 }
1545 consts->MaxComputeVariableGroupInvocations =
1546 max_variable_threads_per_block;
1547
1548 extensions->ARB_compute_variable_group_size =
1549 max_variable_threads_per_block > 0;
1550 }
1551 }
1552 }
1553
1554 extensions->ARB_texture_float =
1555 extensions->OES_texture_half_float &&
1556 extensions->OES_texture_float;
1557
1558 if (extensions->EXT_texture_filter_anisotropic &&
1559 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1560 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1561
1562 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1563
1564 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1565 * there's no clean way of telling whether we would support ES 3.1 from
1566 * here, so copy the condition from compute_version_es2 here. A lot of
1567 * these are redunant, but simpler to just have a (near-)exact copy here.
1568 */
1569 extensions->ARB_ES3_1_compatibility =
1570 extensions->ARB_ES3_compatibility &&
1571 extensions->ARB_arrays_of_arrays &&
1572 extensions->ARB_compute_shader &&
1573 extensions->ARB_draw_indirect &&
1574 extensions->ARB_explicit_uniform_location &&
1575 extensions->ARB_framebuffer_no_attachments &&
1576 extensions->ARB_shader_atomic_counters &&
1577 extensions->ARB_shader_image_load_store &&
1578 extensions->ARB_shader_image_size &&
1579 extensions->ARB_shader_storage_buffer_object &&
1580 extensions->ARB_shading_language_packing &&
1581 extensions->ARB_stencil_texturing &&
1582 extensions->ARB_texture_multisample &&
1583 extensions->ARB_gpu_shader5 &&
1584 extensions->EXT_shader_integer_mix;
1585
1586 extensions->OES_texture_cube_map_array =
1587 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1588 extensions->OES_geometry_shader &&
1589 extensions->ARB_texture_cube_map_array;
1590
1591 extensions->OES_viewport_array =
1592 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1593 extensions->OES_geometry_shader &&
1594 extensions->ARB_viewport_array;
1595
1596 extensions->OES_primitive_bounding_box =
1597 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1598
1599 consts->NoPrimitiveBoundingBoxOutput = true;
1600
1601 extensions->ANDROID_extension_pack_es31a =
1602 extensions->KHR_texture_compression_astc_ldr &&
1603 extensions->KHR_blend_equation_advanced &&
1604 extensions->OES_sample_variables &&
1605 extensions->ARB_shader_image_load_store &&
1606 extensions->ARB_texture_stencil8 &&
1607 extensions->ARB_texture_multisample &&
1608 extensions->OES_copy_image &&
1609 extensions->ARB_draw_buffers_blend &&
1610 extensions->OES_geometry_shader &&
1611 extensions->ARB_gpu_shader5 &&
1612 extensions->OES_primitive_bounding_box &&
1613 extensions->ARB_tessellation_shader &&
1614 extensions->ARB_texture_border_clamp &&
1615 extensions->OES_texture_buffer &&
1616 extensions->OES_texture_cube_map_array &&
1617 extensions->EXT_texture_sRGB_decode;
1618
1619 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1620 * before overall versions are selected. Also it's actually a subset of ES
1621 * 3.2, since it doesn't require ASTC or advanced blending.
1622 */
1623 extensions->ARB_ES3_2_compatibility =
1624 extensions->ARB_ES3_1_compatibility &&
1625 extensions->KHR_robustness &&
1626 extensions->ARB_copy_image &&
1627 extensions->ARB_draw_buffers_blend &&
1628 extensions->ARB_draw_elements_base_vertex &&
1629 extensions->OES_geometry_shader &&
1630 extensions->ARB_gpu_shader5 &&
1631 extensions->ARB_sample_shading &&
1632 extensions->ARB_tessellation_shader &&
1633 extensions->ARB_texture_border_clamp &&
1634 extensions->OES_texture_buffer &&
1635 extensions->ARB_texture_cube_map_array &&
1636 extensions->ARB_texture_stencil8 &&
1637 extensions->ARB_texture_multisample;
1638
1639 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1640 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1641 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1642 float max_dilate;
1643 bool pre_snap_triangles, pre_snap_points_lines;
1644
1645 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1646
1647 pre_snap_triangles =
1648 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1649 pre_snap_points_lines =
1650 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1651
1652 extensions->NV_conservative_raster =
1653 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1654
1655 if (extensions->NV_conservative_raster) {
1656 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1657 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1658 extensions->NV_conservative_raster_pre_snap =
1659 pre_snap_triangles && pre_snap_points_lines;
1660 }
1661 }
1662
1663 if (extensions->ARB_gl_spirv) {
1664 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1665
1666 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1667 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1668 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1669 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1670 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1671 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1672 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1673 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1674 spirv_caps->variable_pointers =
1675 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1676
1677 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1678 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1679 }
1680 }