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st/mesa: Don't set atomic counter size != 0 if MAX_SHADER_BUFFERS == 0.
[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/version.h"
35
36 #include "pipe/p_context.h"
37 #include "pipe/p_defines.h"
38 #include "pipe/p_screen.h"
39 #include "tgsi/tgsi_from_mesa.h"
40 #include "util/u_math.h"
41
42 #include "st_context.h"
43 #include "st_debug.h"
44 #include "st_extensions.h"
45 #include "st_format.h"
46
47
48 /*
49 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
50 * avoid evaluating arguments (which are often function calls) more than once.
51 */
52
53 static unsigned _min(unsigned a, unsigned b)
54 {
55 return (a < b) ? a : b;
56 }
57
58 static float _maxf(float a, float b)
59 {
60 return (a > b) ? a : b;
61 }
62
63 static int _clamp(int a, int min, int max)
64 {
65 if (a < min)
66 return min;
67 else if (a > max)
68 return max;
69 else
70 return a;
71 }
72
73
74 /**
75 * Query driver to get implementation limits.
76 * Note that we have to limit/clamp against Mesa's internal limits too.
77 */
78 void st_init_limits(struct pipe_screen *screen,
79 struct gl_constants *c, struct gl_extensions *extensions,
80 gl_api api)
81 {
82 int supported_irs;
83 unsigned sh;
84 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureLevels
88 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
89 MAX_TEXTURE_LEVELS);
90
91 c->Max3DTextureLevels
92 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
93 MAX_3D_TEXTURE_LEVELS);
94
95 c->MaxCubeTextureLevels
96 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
97 MAX_CUBE_TEXTURE_LEVELS);
98
99 c->MaxTextureRectSize
100 = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
101
102 c->MaxArrayTextureLayers
103 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
104
105 /* Define max viewport size and max renderbuffer size in terms of
106 * max texture size (note: max tex RECT size = max tex 2D size).
107 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
108 */
109 c->MaxViewportWidth =
110 c->MaxViewportHeight =
111 c->MaxRenderbufferSize = c->MaxTextureRectSize;
112
113 c->SubPixelBits =
114 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
115 c->ViewportSubpixelBits =
116 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
117
118 c->MaxDrawBuffers = c->MaxColorAttachments =
119 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
120 1, MAX_DRAW_BUFFERS);
121
122 c->MaxDualSourceDrawBuffers =
123 _clamp(screen->get_param(screen,
124 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
125 0, MAX_DRAW_BUFFERS);
126
127 c->MaxLineWidth =
128 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
129 c->MaxLineWidthAA =
130 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
131
132 c->MaxPointSize =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
134 c->MaxPointSizeAA =
135 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
136
137 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
138 * for non-aa sizes, but we can go down to 0.0 for aa points.
139 */
140 c->MinPointSize = 1.0f;
141 c->MinPointSizeAA = 0.0f;
142
143 c->MaxTextureMaxAnisotropy =
144 _maxf(2.0f,
145 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
146
147 c->MaxTextureLodBias =
148 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
149
150 c->QuadsFollowProvokingVertexConvention =
151 screen->get_param(screen,
152 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
153
154 c->MaxUniformBlockSize =
155 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
156 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
157 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
158 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
159 */
160 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
161
162 if (c->MaxUniformBlockSize < 16384) {
163 can_ubo = false;
164 }
165
166 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
167 struct gl_shader_compiler_options *options;
168 struct gl_program_constants *pc;
169 const nir_shader_compiler_options *nir_options = NULL;
170
171 if (screen->get_compiler_options) {
172 nir_options = (const nir_shader_compiler_options *)
173 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
174 }
175
176 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
177 pc = &c->Program[stage];
178 options = &c->ShaderCompilerOptions[stage];
179 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
180
181 if (sh == PIPE_SHADER_COMPUTE) {
182 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
183 continue;
184 supported_irs =
185 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
186 if (!(supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
187 (1 << PIPE_SHADER_IR_NIR))))
188 continue;
189 }
190
191 pc->MaxTextureImageUnits =
192 _min(screen->get_shader_param(screen, sh,
193 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
194 MAX_TEXTURE_IMAGE_UNITS);
195
196 pc->MaxInstructions =
197 pc->MaxNativeInstructions =
198 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
199 pc->MaxAluInstructions =
200 pc->MaxNativeAluInstructions =
201 screen->get_shader_param(screen, sh,
202 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
203 pc->MaxTexInstructions =
204 pc->MaxNativeTexInstructions =
205 screen->get_shader_param(screen, sh,
206 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
207 pc->MaxTexIndirections =
208 pc->MaxNativeTexIndirections =
209 screen->get_shader_param(screen, sh,
210 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
211 pc->MaxAttribs =
212 pc->MaxNativeAttribs =
213 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
214 pc->MaxTemps =
215 pc->MaxNativeTemps =
216 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
217 pc->MaxAddressRegs =
218 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
219
220 pc->MaxUniformComponents =
221 screen->get_shader_param(screen, sh,
222 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / 4;
223 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
224 MAX_UNIFORMS * 4);
225
226 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
227 * This gives us a limit of 4096 values - but we may need to generate
228 * internal values in addition to what the source program uses. So, we
229 * drop the limit one step lower, to 2048, to be safe.
230 */
231 pc->MaxParameters =
232 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
233 pc->MaxInputComponents =
234 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
235 pc->MaxOutputComponents =
236 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
237
238
239 pc->MaxUniformBlocks =
240 screen->get_shader_param(screen, sh,
241 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
242 if (pc->MaxUniformBlocks)
243 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
244 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
245
246 pc->MaxCombinedUniformComponents =
247 pc->MaxUniformComponents +
248 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
249
250 pc->MaxShaderStorageBlocks =
251 screen->get_shader_param(screen, sh,
252 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
253
254 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
255 if (temp) {
256 /*
257 * for separate atomic counters get the actual hw limits
258 * per stage on atomic counters and buffers
259 */
260 pc->MaxAtomicCounters = temp;
261 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
262 } else if (pc->MaxShaderStorageBlocks) {
263 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
264 /*
265 * without separate atomic counters, reserve half of the available
266 * SSBOs for atomic buffers, and the other half for normal SSBOs.
267 */
268 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
269 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
270 }
271 pc->MaxImageUniforms = screen->get_shader_param(
272 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
273
274 /* Gallium doesn't really care about local vs. env parameters so use the
275 * same limits.
276 */
277 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
278 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
279
280 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
281 pc->LowInt.RangeMin = 31;
282 pc->LowInt.RangeMax = 30;
283 pc->LowInt.Precision = 0;
284 pc->MediumInt = pc->HighInt = pc->LowInt;
285 }
286
287 /* TODO: make these more fine-grained if anyone needs it */
288 options->MaxIfDepth =
289 screen->get_shader_param(screen, sh,
290 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
291 options->EmitNoLoops =
292 !screen->get_shader_param(screen, sh,
293 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
294 options->EmitNoMainReturn =
295 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
296
297 options->EmitNoCont =
298 !screen->get_shader_param(screen, sh,
299 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
300
301 options->EmitNoIndirectInput =
302 !screen->get_shader_param(screen, sh,
303 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
304 options->EmitNoIndirectOutput =
305 !screen->get_shader_param(screen, sh,
306 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
307 options->EmitNoIndirectTemp =
308 !screen->get_shader_param(screen, sh,
309 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
310 options->EmitNoIndirectUniform =
311 !screen->get_shader_param(screen, sh,
312 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
313
314 if (pc->MaxNativeInstructions &&
315 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
316 can_ubo = false;
317 }
318
319 if (options->EmitNoLoops)
320 options->MaxUnrollIterations =
321 MIN2(screen->get_shader_param(screen, sh,
322 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
323 65536);
324 else
325 options->MaxUnrollIterations =
326 screen->get_shader_param(screen, sh,
327 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
328
329 if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
330 options->LowerCombinedClipCullDistance = true;
331
332 bool prefer_nir = PIPE_SHADER_IR_NIR ==
333 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_PREFERRED_IR);
334
335 /* NIR can do the lowering on our behalf and we'll get better results
336 * because it can actually optimize SSBO access.
337 */
338 options->LowerBufferInterfaceBlocks = !prefer_nir;
339 }
340
341 c->MaxUserAssignableUniformLocations =
342 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
343 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
344 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
345 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
346 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
347
348 c->GLSLOptimizeConservatively =
349 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
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 = true;
355 c->PrimitiveRestartForPatches =
356 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
357
358 c->MaxCombinedTextureImageUnits =
359 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
360 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
361 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
362 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
363 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
364 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
365 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
366
367 /* This depends on program constants. */
368 c->MaxTextureCoordUnits
369 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
370 MAX_TEXTURE_COORD_UNITS);
371
372 c->MaxTextureUnits =
373 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
374 c->MaxTextureCoordUnits);
375
376 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
377 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
378
379 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
380 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
381 c->MaxGeometryOutputVertices =
382 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
383 c->MaxGeometryTotalOutputComponents =
384 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
385 c->MaxGeometryShaderInvocations =
386 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
387 c->MaxTessPatchComponents =
388 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
389 MAX_VARYING) * 4;
390
391 c->MinProgramTexelOffset =
392 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
393 c->MaxProgramTexelOffset =
394 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
395
396 c->MaxProgramTextureGatherComponents =
397 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
398 c->MinProgramTextureGatherOffset =
399 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
400 c->MaxProgramTextureGatherOffset =
401 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
402
403 c->MaxTransformFeedbackBuffers =
404 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
405 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
406 MAX_FEEDBACK_BUFFERS);
407 c->MaxTransformFeedbackSeparateComponents =
408 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
409 c->MaxTransformFeedbackInterleavedComponents =
410 screen->get_param(screen,
411 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
412 c->MaxVertexStreams =
413 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
414
415 /* The vertex stream must fit into pipe_stream_output_info::stream */
416 assert(c->MaxVertexStreams <= 4);
417
418 c->MaxVertexAttribStride
419 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
420
421 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
422 * is only 16 bits.
423 */
424 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
425 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
426
427 c->StripTextureBorder = GL_TRUE;
428
429 c->GLSLSkipStrictMaxUniformLimitCheck =
430 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
431
432 c->UniformBufferOffsetAlignment =
433 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
434
435 if (can_ubo) {
436 extensions->ARB_uniform_buffer_object = GL_TRUE;
437 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
438 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
439 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
440 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
441 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
442 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
443 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
444 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
445 }
446
447 c->GLSLFragCoordIsSysVal =
448 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
449 c->GLSLFrontFacingIsSysVal =
450 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
451
452 /* GL_ARB_get_program_binary
453 *
454 * The QT framework has a bug in their shader program cache, which is built
455 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
456 * we don't enable more than 1 binary format for compatibility profiles.
457 */
458 if (api != API_OPENGL_COMPAT &&
459 screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
460 c->NumProgramBinaryFormats = 1;
461
462 c->MaxAtomicBufferBindings =
463 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
464 c->MaxAtomicBufferSize =
465 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
466
467 c->MaxCombinedAtomicBuffers =
468 MIN2(screen->get_param(screen,
469 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
470 MAX_COMBINED_ATOMIC_BUFFERS);
471 if (!c->MaxCombinedAtomicBuffers) {
472 c->MaxCombinedAtomicBuffers =
473 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
474 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
475 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
476 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
477 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
478 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
479 }
480
481 c->MaxCombinedAtomicCounters =
482 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
483 if (!c->MaxCombinedAtomicCounters)
484 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
485
486 if (c->MaxCombinedAtomicBuffers > 0) {
487 extensions->ARB_shader_atomic_counters = GL_TRUE;
488 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
489 }
490
491 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
492 c->ShaderStorageBufferOffsetAlignment =
493 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
494 if (c->ShaderStorageBufferOffsetAlignment) {
495 c->MaxCombinedShaderStorageBlocks =
496 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
497 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
498 if (!c->MaxCombinedShaderStorageBlocks) {
499 c->MaxCombinedShaderStorageBlocks =
500 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
501 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
502 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
503 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
504 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
505 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
506 }
507 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
508
509 c->MaxCombinedShaderOutputResources +=
510 c->MaxCombinedShaderStorageBlocks;
511 c->MaxShaderStorageBlockSize =
512 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
513 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
514 }
515
516 c->MaxCombinedImageUniforms =
517 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
518 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
519 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
520 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
521 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
522 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
523 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
524 c->MaxImageUnits = MAX_IMAGE_UNITS;
525 if (c->MaxCombinedImageUniforms) {
526 extensions->ARB_shader_image_load_store = GL_TRUE;
527 extensions->ARB_shader_image_size = GL_TRUE;
528 }
529
530 /* ARB_framebuffer_no_attachments */
531 c->MaxFramebufferWidth = c->MaxViewportWidth;
532 c->MaxFramebufferHeight = c->MaxViewportHeight;
533 /* NOTE: we cheat here a little by assuming that
534 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
535 * number of layers as we need, although we technically
536 * could have more the generality is not really useful
537 * in practicality.
538 */
539 c->MaxFramebufferLayers =
540 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
541
542 c->MaxWindowRectangles =
543 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
544
545 c->SparseBufferPageSize =
546 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
547
548 c->AllowMappedBuffersDuringExecution =
549 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
550
551 c->UseSTD430AsDefaultPacking =
552 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
553
554 c->MaxSubpixelPrecisionBiasBits =
555 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
556
557 c->ConservativeRasterDilateRange[0] =
558 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
559 c->ConservativeRasterDilateRange[1] =
560 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
561 c->ConservativeRasterDilateGranularity =
562 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
563
564 /* limit the max combined shader output resources to a driver limit */
565 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
566 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
567 c->MaxCombinedShaderOutputResources = temp;
568 }
569
570
571 /**
572 * Given a member \c x of struct gl_extensions, return offset of
573 * \c x in bytes.
574 */
575 #define o(x) offsetof(struct gl_extensions, x)
576
577
578 struct st_extension_cap_mapping {
579 int extension_offset;
580 int cap;
581 };
582
583 struct st_extension_format_mapping {
584 int extension_offset[2];
585 enum pipe_format format[32];
586
587 /* If TRUE, at least one format must be supported for the extensions to be
588 * advertised. If FALSE, all the formats must be supported. */
589 GLboolean need_at_least_one;
590 };
591
592 /**
593 * Enable extensions if certain pipe formats are supported by the driver.
594 * What extensions will be enabled and what formats must be supported is
595 * described by the array of st_extension_format_mapping.
596 *
597 * target and bind_flags are passed to is_format_supported.
598 */
599 static void
600 init_format_extensions(struct pipe_screen *screen,
601 struct gl_extensions *extensions,
602 const struct st_extension_format_mapping *mapping,
603 unsigned num_mappings,
604 enum pipe_texture_target target,
605 unsigned bind_flags)
606 {
607 GLboolean *extension_table = (GLboolean *) extensions;
608 unsigned i;
609 int j;
610 int num_formats = ARRAY_SIZE(mapping->format);
611 int num_ext = ARRAY_SIZE(mapping->extension_offset);
612
613 for (i = 0; i < num_mappings; i++) {
614 int num_supported = 0;
615
616 /* Examine each format in the list. */
617 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
618 if (screen->is_format_supported(screen, mapping[i].format[j],
619 target, 0, 0, bind_flags)) {
620 num_supported++;
621 }
622 }
623
624 if (!num_supported ||
625 (!mapping[i].need_at_least_one && num_supported != j)) {
626 continue;
627 }
628
629 /* Enable all extensions in the list. */
630 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
631 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
632 }
633 }
634
635
636 /**
637 * Given a list of formats and bind flags, return the maximum number
638 * of samples supported by any of those formats.
639 */
640 static unsigned
641 get_max_samples_for_formats(struct pipe_screen *screen,
642 unsigned num_formats,
643 const enum pipe_format *formats,
644 unsigned max_samples,
645 unsigned bind)
646 {
647 unsigned i, f;
648
649 for (i = max_samples; i > 0; --i) {
650 for (f = 0; f < num_formats; f++) {
651 if (screen->is_format_supported(screen, formats[f],
652 PIPE_TEXTURE_2D, i, i, bind)) {
653 return i;
654 }
655 }
656 }
657 return 0;
658 }
659
660 static unsigned
661 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
662 unsigned num_formats,
663 const enum pipe_format *formats,
664 unsigned max_samples,
665 unsigned num_storage_samples,
666 unsigned bind)
667 {
668 unsigned i, f;
669
670 for (i = max_samples; i > 0; --i) {
671 for (f = 0; f < num_formats; f++) {
672 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
673 i, num_storage_samples, bind)) {
674 return i;
675 }
676 }
677 }
678 return 0;
679 }
680
681 /**
682 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
683 * which GL extensions are supported.
684 * Quite a few extensions are always supported because they are standard
685 * features or can be built on top of other gallium features.
686 * Some fine tuning may still be needed.
687 */
688 void st_init_extensions(struct pipe_screen *screen,
689 struct gl_constants *consts,
690 struct gl_extensions *extensions,
691 struct st_config_options *options,
692 gl_api api)
693 {
694 unsigned i;
695 GLboolean *extension_table = (GLboolean *) extensions;
696
697 static const struct st_extension_cap_mapping cap_mapping[] = {
698 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
699 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
700 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
701 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
702 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
703 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
704 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
705 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
706 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
707 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
708 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
709 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
710 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
711 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
712 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
713 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
714 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
715 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
716 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
717 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
718 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
719 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
720 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
721 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
722 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
723 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
724 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
725 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
726 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
727 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
728 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
729 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
730 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
731 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
732 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
733 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
734 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
735 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
736 { o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
737 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
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
751 { o(KHR_blend_equation_advanced), PIPE_CAP_TGSI_FS_FBFETCH },
752
753 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
754 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
755 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
756 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
757 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
758 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
759 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
760 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
761 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
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_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
766 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
767 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
768
769 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
770 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
771 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
772 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
773 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
774 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
775 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
776 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
777 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
778 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
779 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
780 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
781 { o(NV_shader_atomic_float), PIPE_CAP_TGSI_ATOMFADD },
782 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
783 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
784 /* GL_NV_point_sprite is not supported by gallium because we don't
785 * support the GL_POINT_SPRITE_R_MODE_NV option. */
786
787 { o(OES_standard_derivatives), PIPE_CAP_SM3 },
788 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
789 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
790 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
791 };
792
793 /* Required: render target and sampler support */
794 static const struct st_extension_format_mapping rendertarget_mapping[] = {
795 { { o(OES_texture_float) },
796 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
797
798 { { o(OES_texture_half_float) },
799 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
800
801 { { o(ARB_texture_rgb10_a2ui) },
802 { PIPE_FORMAT_R10G10B10A2_UINT,
803 PIPE_FORMAT_B10G10R10A2_UINT },
804 GL_TRUE }, /* at least one format must be supported */
805
806 { { o(EXT_sRGB) },
807 { PIPE_FORMAT_A8B8G8R8_SRGB,
808 PIPE_FORMAT_B8G8R8A8_SRGB,
809 PIPE_FORMAT_R8G8B8A8_SRGB },
810 GL_TRUE }, /* at least one format must be supported */
811
812 { { o(EXT_packed_float) },
813 { PIPE_FORMAT_R11G11B10_FLOAT } },
814
815 { { o(EXT_texture_integer) },
816 { PIPE_FORMAT_R32G32B32A32_UINT,
817 PIPE_FORMAT_R32G32B32A32_SINT } },
818
819 { { o(ARB_texture_rg) },
820 { PIPE_FORMAT_R8_UNORM,
821 PIPE_FORMAT_R8G8_UNORM } },
822
823 { { o(EXT_render_snorm) },
824 { PIPE_FORMAT_R8_SNORM,
825 PIPE_FORMAT_R8G8_SNORM,
826 PIPE_FORMAT_R8G8B8A8_SNORM,
827 PIPE_FORMAT_R16_SNORM,
828 PIPE_FORMAT_R16G16_SNORM,
829 PIPE_FORMAT_R16G16B16A16_SNORM } },
830 };
831
832 /* Required: render target, sampler, and blending */
833 static const struct st_extension_format_mapping rt_blendable[] = {
834 { { o(EXT_float_blend) },
835 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
836 };
837
838 /* Required: depth stencil and sampler support */
839 static const struct st_extension_format_mapping depthstencil_mapping[] = {
840 { { o(ARB_depth_buffer_float) },
841 { PIPE_FORMAT_Z32_FLOAT,
842 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
843 };
844
845 /* Required: sampler support */
846 static const struct st_extension_format_mapping texture_mapping[] = {
847 { { o(ARB_texture_compression_rgtc) },
848 { PIPE_FORMAT_RGTC1_UNORM,
849 PIPE_FORMAT_RGTC1_SNORM,
850 PIPE_FORMAT_RGTC2_UNORM,
851 PIPE_FORMAT_RGTC2_SNORM } },
852
853 { { o(EXT_texture_compression_latc) },
854 { PIPE_FORMAT_LATC1_UNORM,
855 PIPE_FORMAT_LATC1_SNORM,
856 PIPE_FORMAT_LATC2_UNORM,
857 PIPE_FORMAT_LATC2_SNORM } },
858
859 { { o(EXT_texture_compression_s3tc),
860 o(ANGLE_texture_compression_dxt) },
861 { PIPE_FORMAT_DXT1_RGB,
862 PIPE_FORMAT_DXT1_RGBA,
863 PIPE_FORMAT_DXT3_RGBA,
864 PIPE_FORMAT_DXT5_RGBA } },
865
866 { { o(EXT_texture_compression_s3tc_srgb) },
867 { PIPE_FORMAT_DXT1_SRGB,
868 PIPE_FORMAT_DXT1_SRGBA,
869 PIPE_FORMAT_DXT3_SRGBA,
870 PIPE_FORMAT_DXT5_SRGBA } },
871
872 { { o(ARB_texture_compression_bptc) },
873 { PIPE_FORMAT_BPTC_RGBA_UNORM,
874 PIPE_FORMAT_BPTC_SRGBA,
875 PIPE_FORMAT_BPTC_RGB_FLOAT,
876 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
877
878 { { o(KHR_texture_compression_astc_ldr),
879 o(KHR_texture_compression_astc_sliced_3d) },
880 { PIPE_FORMAT_ASTC_4x4,
881 PIPE_FORMAT_ASTC_5x4,
882 PIPE_FORMAT_ASTC_5x5,
883 PIPE_FORMAT_ASTC_6x5,
884 PIPE_FORMAT_ASTC_6x6,
885 PIPE_FORMAT_ASTC_8x5,
886 PIPE_FORMAT_ASTC_8x6,
887 PIPE_FORMAT_ASTC_8x8,
888 PIPE_FORMAT_ASTC_10x5,
889 PIPE_FORMAT_ASTC_10x6,
890 PIPE_FORMAT_ASTC_10x8,
891 PIPE_FORMAT_ASTC_10x10,
892 PIPE_FORMAT_ASTC_12x10,
893 PIPE_FORMAT_ASTC_12x12,
894 PIPE_FORMAT_ASTC_4x4_SRGB,
895 PIPE_FORMAT_ASTC_5x4_SRGB,
896 PIPE_FORMAT_ASTC_5x5_SRGB,
897 PIPE_FORMAT_ASTC_6x5_SRGB,
898 PIPE_FORMAT_ASTC_6x6_SRGB,
899 PIPE_FORMAT_ASTC_8x5_SRGB,
900 PIPE_FORMAT_ASTC_8x6_SRGB,
901 PIPE_FORMAT_ASTC_8x8_SRGB,
902 PIPE_FORMAT_ASTC_10x5_SRGB,
903 PIPE_FORMAT_ASTC_10x6_SRGB,
904 PIPE_FORMAT_ASTC_10x8_SRGB,
905 PIPE_FORMAT_ASTC_10x10_SRGB,
906 PIPE_FORMAT_ASTC_12x10_SRGB,
907 PIPE_FORMAT_ASTC_12x12_SRGB } },
908
909 /* ASTC software fallback support. */
910 { { o(KHR_texture_compression_astc_ldr),
911 o(KHR_texture_compression_astc_sliced_3d) },
912 { PIPE_FORMAT_R8G8B8A8_UNORM,
913 PIPE_FORMAT_R8G8B8A8_SRGB } },
914
915 { { o(EXT_texture_shared_exponent) },
916 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
917
918 { { o(EXT_texture_snorm) },
919 { PIPE_FORMAT_R8G8B8A8_SNORM } },
920
921 { { o(EXT_texture_sRGB),
922 o(EXT_texture_sRGB_decode) },
923 { PIPE_FORMAT_A8B8G8R8_SRGB,
924 PIPE_FORMAT_B8G8R8A8_SRGB,
925 PIPE_FORMAT_A8R8G8B8_SRGB,
926 PIPE_FORMAT_R8G8B8A8_SRGB},
927 GL_TRUE }, /* at least one format must be supported */
928
929 { { o(EXT_texture_sRGB_R8) },
930 { PIPE_FORMAT_R8_SRGB },
931 GL_TRUE },
932
933 { { o(EXT_texture_type_2_10_10_10_REV) },
934 { PIPE_FORMAT_R10G10B10A2_UNORM,
935 PIPE_FORMAT_B10G10R10A2_UNORM },
936 GL_TRUE }, /* at least one format must be supported */
937
938 { { o(ATI_texture_compression_3dc) },
939 { PIPE_FORMAT_LATC2_UNORM } },
940
941 { { o(MESA_ycbcr_texture) },
942 { PIPE_FORMAT_UYVY,
943 PIPE_FORMAT_YUYV },
944 GL_TRUE }, /* at least one format must be supported */
945
946 { { o(OES_compressed_ETC1_RGB8_texture) },
947 { PIPE_FORMAT_ETC1_RGB8,
948 PIPE_FORMAT_R8G8B8A8_UNORM },
949 GL_TRUE }, /* at least one format must be supported */
950
951 { { o(ARB_stencil_texturing),
952 o(ARB_texture_stencil8) },
953 { PIPE_FORMAT_X24S8_UINT,
954 PIPE_FORMAT_S8X24_UINT },
955 GL_TRUE }, /* at least one format must be supported */
956
957 { { o(AMD_compressed_ATC_texture) },
958 { PIPE_FORMAT_ATC_RGB,
959 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
960 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
961 };
962
963 /* Required: vertex fetch support. */
964 static const struct st_extension_format_mapping vertex_mapping[] = {
965 { { o(EXT_vertex_array_bgra) },
966 { PIPE_FORMAT_B8G8R8A8_UNORM } },
967 { { o(ARB_vertex_type_2_10_10_10_rev) },
968 { PIPE_FORMAT_R10G10B10A2_UNORM,
969 PIPE_FORMAT_B10G10R10A2_UNORM,
970 PIPE_FORMAT_R10G10B10A2_SNORM,
971 PIPE_FORMAT_B10G10R10A2_SNORM,
972 PIPE_FORMAT_R10G10B10A2_USCALED,
973 PIPE_FORMAT_B10G10R10A2_USCALED,
974 PIPE_FORMAT_R10G10B10A2_SSCALED,
975 PIPE_FORMAT_B10G10R10A2_SSCALED } },
976 { { o(ARB_vertex_type_10f_11f_11f_rev) },
977 { PIPE_FORMAT_R11G11B10_FLOAT } },
978 };
979
980 static const struct st_extension_format_mapping tbo_rgb32[] = {
981 { {o(ARB_texture_buffer_object_rgb32) },
982 { PIPE_FORMAT_R32G32B32_FLOAT,
983 PIPE_FORMAT_R32G32B32_UINT,
984 PIPE_FORMAT_R32G32B32_SINT,
985 } },
986 };
987
988 /*
989 * Extensions that are supported by all Gallium drivers:
990 */
991 extensions->ARB_ES2_compatibility = GL_TRUE;
992 extensions->ARB_depth_texture = GL_TRUE;
993 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
994 extensions->ARB_explicit_attrib_location = GL_TRUE;
995 extensions->ARB_explicit_uniform_location = GL_TRUE;
996 extensions->ARB_fragment_coord_conventions = GL_TRUE;
997 extensions->ARB_fragment_program = GL_TRUE;
998 extensions->ARB_fragment_program_shadow = GL_TRUE;
999 extensions->ARB_fragment_shader = GL_TRUE;
1000 extensions->ARB_half_float_vertex = GL_TRUE;
1001 extensions->ARB_internalformat_query = GL_TRUE;
1002 extensions->ARB_internalformat_query2 = GL_TRUE;
1003 extensions->ARB_map_buffer_range = GL_TRUE;
1004 extensions->ARB_shadow = GL_TRUE;
1005 extensions->ARB_sync = GL_TRUE;
1006 extensions->ARB_texture_border_clamp = GL_TRUE;
1007 extensions->ARB_texture_cube_map = GL_TRUE;
1008 extensions->ARB_texture_env_combine = GL_TRUE;
1009 extensions->ARB_texture_env_crossbar = GL_TRUE;
1010 extensions->ARB_texture_env_dot3 = GL_TRUE;
1011 extensions->ARB_vertex_program = GL_TRUE;
1012 extensions->ARB_vertex_shader = GL_TRUE;
1013
1014 extensions->EXT_blend_color = GL_TRUE;
1015 extensions->EXT_blend_func_separate = GL_TRUE;
1016 extensions->EXT_blend_minmax = GL_TRUE;
1017 extensions->EXT_gpu_program_parameters = GL_TRUE;
1018 extensions->EXT_pixel_buffer_object = GL_TRUE;
1019 extensions->EXT_point_parameters = GL_TRUE;
1020 extensions->EXT_provoking_vertex = GL_TRUE;
1021 extensions->EXT_stencil_two_side = GL_TRUE;
1022 extensions->EXT_texture_env_dot3 = GL_TRUE;
1023
1024 extensions->ATI_fragment_shader = GL_TRUE;
1025 extensions->ATI_texture_env_combine3 = GL_TRUE;
1026
1027 extensions->MESA_pack_invert = GL_TRUE;
1028
1029 extensions->NV_fog_distance = GL_TRUE;
1030 extensions->NV_texture_env_combine4 = GL_TRUE;
1031 extensions->NV_texture_rectangle = GL_TRUE;
1032
1033 extensions->OES_EGL_image = GL_TRUE;
1034 extensions->OES_EGL_image_external = GL_TRUE;
1035 extensions->OES_draw_texture = GL_TRUE;
1036
1037 /* Expose the extensions which directly correspond to gallium caps. */
1038 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1039 if (screen->get_param(screen, cap_mapping[i].cap)) {
1040 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1041 }
1042 }
1043
1044 /* Expose the extensions which directly correspond to gallium formats. */
1045 init_format_extensions(screen, extensions, rendertarget_mapping,
1046 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1047 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1048 init_format_extensions(screen, extensions, rt_blendable,
1049 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1050 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1051 PIPE_BIND_BLENDABLE);
1052 init_format_extensions(screen, extensions, depthstencil_mapping,
1053 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1054 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1055 init_format_extensions(screen, extensions, texture_mapping,
1056 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1057 PIPE_BIND_SAMPLER_VIEW);
1058 init_format_extensions(screen, extensions, vertex_mapping,
1059 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1060 PIPE_BIND_VERTEX_BUFFER);
1061
1062 /* Figure out GLSL support and set GLSLVersion to it. */
1063 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1064 consts->GLSLVersionCompat =
1065 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1066
1067 const unsigned ESSLVersion =
1068 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1069 const unsigned GLSLVersion =
1070 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1071 consts->GLSLVersion;
1072
1073 _mesa_override_glsl_version(consts);
1074
1075 if (options->force_glsl_version > 0 &&
1076 options->force_glsl_version <= GLSLVersion) {
1077 consts->ForceGLSLVersion = options->force_glsl_version;
1078 }
1079
1080 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1081
1082 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1083
1084 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1085
1086 consts->dri_config_options_sha1 = options->config_options_sha1;
1087
1088 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1089
1090 /* Technically we are turning on the EXT_gpu_shader5 extension,
1091 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1092 * switches on EXT_gpu_shader5:
1093 */
1094 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1095 extensions->ARB_gpu_shader5 = GL_TRUE;
1096
1097 if (GLSLVersion >= 400)
1098 extensions->ARB_gpu_shader5 = GL_TRUE;
1099 if (GLSLVersion >= 410)
1100 extensions->ARB_shader_precision = GL_TRUE;
1101
1102 /* This extension needs full OpenGL 3.2, but we don't know if that's
1103 * supported at this point. Only check the GLSL version. */
1104 if (GLSLVersion >= 150 &&
1105 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1106 extensions->AMD_vertex_shader_layer = GL_TRUE;
1107 }
1108
1109 if (GLSLVersion >= 140) {
1110 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1111 extensions->ARB_enhanced_layouts = GL_TRUE;
1112 }
1113
1114 if (GLSLVersion >= 130) {
1115 consts->NativeIntegers = GL_TRUE;
1116 consts->MaxClipPlanes = 8;
1117
1118 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1119 consts->VertexID_is_zero_based = GL_TRUE;
1120 }
1121
1122 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1123 extensions->ARB_conservative_depth = GL_TRUE;
1124 extensions->ARB_shading_language_packing = GL_TRUE;
1125 extensions->OES_depth_texture_cube_map = GL_TRUE;
1126 extensions->ARB_shading_language_420pack = GL_TRUE;
1127 extensions->ARB_texture_query_levels = GL_TRUE;
1128
1129 extensions->ARB_shader_bit_encoding = GL_TRUE;
1130
1131 extensions->EXT_shader_integer_mix = GL_TRUE;
1132 extensions->ARB_arrays_of_arrays = GL_TRUE;
1133 extensions->MESA_shader_integer_functions = GL_TRUE;
1134 } else {
1135 /* Optional integer support for GLSL 1.2. */
1136 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1137 PIPE_SHADER_CAP_INTEGERS) &&
1138 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1139 PIPE_SHADER_CAP_INTEGERS)) {
1140 consts->NativeIntegers = GL_TRUE;
1141
1142 extensions->EXT_shader_integer_mix = GL_TRUE;
1143 }
1144
1145 /* Integer textures make no sense before GLSL 1.30 */
1146 extensions->EXT_texture_integer = GL_FALSE;
1147 }
1148
1149 consts->GLSLZeroInit = options->glsl_zero_init;
1150
1151 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1152
1153 /* Below are the cases which cannot be moved into tables easily. */
1154
1155 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1156 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1157 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1158 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1159 extensions->ARB_tessellation_shader = GL_TRUE;
1160 }
1161
1162 /* What this is really checking for is the ability to support multiple
1163 * invocations of a geometry shader. There is no separate cap for that, so
1164 * we check the GLSLVersion.
1165 */
1166 if (GLSLVersion >= 400 &&
1167 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1168 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1169 extensions->OES_geometry_shader = GL_TRUE;
1170 }
1171
1172 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1173 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1174 */
1175 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1176 extensions->ARB_gpu_shader5;
1177
1178 /* Maximum sample count. */
1179 {
1180 static const enum pipe_format color_formats[] = {
1181 PIPE_FORMAT_R8G8B8A8_UNORM,
1182 PIPE_FORMAT_B8G8R8A8_UNORM,
1183 PIPE_FORMAT_A8R8G8B8_UNORM,
1184 PIPE_FORMAT_A8B8G8R8_UNORM,
1185 };
1186 static const enum pipe_format depth_formats[] = {
1187 PIPE_FORMAT_Z16_UNORM,
1188 PIPE_FORMAT_Z24X8_UNORM,
1189 PIPE_FORMAT_X8Z24_UNORM,
1190 PIPE_FORMAT_Z32_UNORM,
1191 PIPE_FORMAT_Z32_FLOAT
1192 };
1193 static const enum pipe_format int_formats[] = {
1194 PIPE_FORMAT_R8G8B8A8_SINT
1195 };
1196 static const enum pipe_format void_formats[] = {
1197 PIPE_FORMAT_NONE
1198 };
1199
1200 consts->MaxSamples =
1201 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1202 color_formats, 16,
1203 PIPE_BIND_RENDER_TARGET);
1204
1205 consts->MaxImageSamples =
1206 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1207 color_formats, 16,
1208 PIPE_BIND_SHADER_IMAGE);
1209
1210 consts->MaxColorTextureSamples =
1211 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1212 color_formats, consts->MaxSamples,
1213 PIPE_BIND_SAMPLER_VIEW);
1214
1215 consts->MaxDepthTextureSamples =
1216 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1217 depth_formats, consts->MaxSamples,
1218 PIPE_BIND_SAMPLER_VIEW);
1219
1220 consts->MaxIntegerSamples =
1221 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1222 int_formats, consts->MaxSamples,
1223 PIPE_BIND_SAMPLER_VIEW);
1224
1225 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1226 consts->MaxFramebufferSamples =
1227 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1228 void_formats, 32,
1229 PIPE_BIND_RENDER_TARGET);
1230
1231 if (extensions->AMD_framebuffer_multisample_advanced) {
1232 /* AMD_framebuffer_multisample_advanced */
1233 /* This can be greater than storage samples. */
1234 consts->MaxColorFramebufferSamples =
1235 get_max_samples_for_formats_advanced(screen,
1236 ARRAY_SIZE(color_formats),
1237 color_formats, 16,
1238 consts->MaxSamples,
1239 PIPE_BIND_RENDER_TARGET);
1240
1241 /* If the driver supports N color samples, it means it supports
1242 * N samples and N storage samples. N samples >= N storage
1243 * samples.
1244 */
1245 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1246 consts->MaxDepthStencilFramebufferSamples =
1247 consts->MaxDepthTextureSamples;
1248
1249 assert(consts->MaxColorFramebufferSamples >=
1250 consts->MaxDepthStencilFramebufferSamples);
1251 assert(consts->MaxDepthStencilFramebufferSamples >=
1252 consts->MaxColorFramebufferStorageSamples);
1253
1254 consts->NumSupportedMultisampleModes = 0;
1255
1256 unsigned depth_samples_supported = 0;
1257
1258 for (unsigned samples = 2;
1259 samples <= consts->MaxDepthStencilFramebufferSamples;
1260 samples++) {
1261 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1262 PIPE_TEXTURE_2D, samples, samples,
1263 PIPE_BIND_DEPTH_STENCIL))
1264 depth_samples_supported |= 1 << samples;
1265 }
1266
1267 for (unsigned samples = 2;
1268 samples <= consts->MaxColorFramebufferSamples;
1269 samples++) {
1270 for (unsigned depth_samples = 2;
1271 depth_samples <= samples; depth_samples++) {
1272 if (!(depth_samples_supported & (1 << depth_samples)))
1273 continue;
1274
1275 for (unsigned storage_samples = 2;
1276 storage_samples <= depth_samples; storage_samples++) {
1277 if (screen->is_format_supported(screen,
1278 PIPE_FORMAT_R8G8B8A8_UNORM,
1279 PIPE_TEXTURE_2D,
1280 samples,
1281 storage_samples,
1282 PIPE_BIND_RENDER_TARGET)) {
1283 unsigned i = consts->NumSupportedMultisampleModes;
1284
1285 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1286 consts->SupportedMultisampleModes[i].NumColorSamples =
1287 samples;
1288 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1289 storage_samples;
1290 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1291 depth_samples;
1292 consts->NumSupportedMultisampleModes++;
1293 }
1294 }
1295 }
1296 }
1297 }
1298 }
1299
1300 if (consts->MaxSamples >= 2) {
1301 /* Real MSAA support */
1302 extensions->EXT_framebuffer_multisample = GL_TRUE;
1303 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1304 }
1305 else if (consts->MaxSamples > 0 &&
1306 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1307 /* fake MSAA support */
1308 consts->FakeSWMSAA = GL_TRUE;
1309 extensions->EXT_framebuffer_multisample = GL_TRUE;
1310 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1311 extensions->ARB_texture_multisample = GL_TRUE;
1312 }
1313
1314 if (consts->MaxDualSourceDrawBuffers > 0 &&
1315 !options->disable_blend_func_extended)
1316 extensions->ARB_blend_func_extended = GL_TRUE;
1317
1318 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1319 extensions->ARB_timer_query) {
1320 extensions->EXT_timer_query = GL_TRUE;
1321 }
1322
1323 if (extensions->ARB_transform_feedback2 &&
1324 extensions->ARB_draw_instanced) {
1325 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1326 }
1327 if (options->force_glsl_extensions_warn)
1328 consts->ForceGLSLExtensionsWarn = 1;
1329
1330 if (options->disable_glsl_line_continuations)
1331 consts->DisableGLSLLineContinuations = 1;
1332
1333 if (options->allow_glsl_extension_directive_midshader)
1334 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1335
1336 if (options->allow_glsl_builtin_const_expression)
1337 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1338
1339 if (options->allow_glsl_relaxed_es)
1340 consts->AllowGLSLRelaxedES = GL_TRUE;
1341
1342 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1343 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1344
1345 consts->MinMapBufferAlignment =
1346 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1347
1348 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1349 if (api == API_OPENGL_COMPAT &&
1350 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1351 extensions->ARB_texture_buffer_object = GL_FALSE;
1352
1353 if (extensions->ARB_texture_buffer_object) {
1354 consts->MaxTextureBufferSize =
1355 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1356 (1u << 31) - 1);
1357 consts->TextureBufferOffsetAlignment =
1358 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1359
1360 if (consts->TextureBufferOffsetAlignment)
1361 extensions->ARB_texture_buffer_range = GL_TRUE;
1362
1363 init_format_extensions(screen, extensions, tbo_rgb32,
1364 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1365 PIPE_BIND_SAMPLER_VIEW);
1366 }
1367
1368 extensions->OES_texture_buffer =
1369 extensions->ARB_texture_buffer_object &&
1370 extensions->ARB_texture_buffer_range &&
1371 extensions->ARB_texture_buffer_object_rgb32 &&
1372 extensions->ARB_shader_image_load_store;
1373
1374 extensions->EXT_framebuffer_sRGB =
1375 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1376 extensions->EXT_sRGB;
1377
1378 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1379 * If the number of available texture indirections is very limited, then we
1380 * prefer to disable varying packing rather than run the risk of varying
1381 * packing preventing a shader from running.
1382 */
1383 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1384 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1385 /* We can't disable varying packing if transform feedback is available,
1386 * because transform feedback code assumes a packed varying layout.
1387 */
1388 if (!extensions->EXT_transform_feedback)
1389 consts->DisableVaryingPacking = GL_TRUE;
1390 }
1391
1392 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1393 if (consts->MaxViewports >= 16) {
1394 if (GLSLVersion >= 400) {
1395 consts->ViewportBounds.Min = -32768.0;
1396 consts->ViewportBounds.Max = 32767.0;
1397 } else {
1398 consts->ViewportBounds.Min = -16384.0;
1399 consts->ViewportBounds.Max = 16383.0;
1400 }
1401 extensions->ARB_viewport_array = GL_TRUE;
1402 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1403 if (extensions->AMD_vertex_shader_layer)
1404 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1405 }
1406
1407 if (extensions->AMD_vertex_shader_layer &&
1408 extensions->AMD_vertex_shader_viewport_index &&
1409 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1410 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1411
1412 /* ARB_framebuffer_no_attachments */
1413 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1414 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1415 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1416 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1417 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1418
1419 /* GL_ARB_ES3_compatibility.
1420 * Check requirements for GLSL ES 3.00.
1421 */
1422 if (GLSLVersion >= 130 &&
1423 extensions->ARB_uniform_buffer_object &&
1424 extensions->ARB_shader_bit_encoding &&
1425 extensions->NV_primitive_restart &&
1426 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1427 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1428 /* Requirements for ETC2 emulation. */
1429 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1430 PIPE_TEXTURE_2D, 0, 0,
1431 PIPE_BIND_SAMPLER_VIEW) &&
1432 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1433 PIPE_TEXTURE_2D, 0, 0,
1434 PIPE_BIND_SAMPLER_VIEW) &&
1435 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1436 PIPE_TEXTURE_2D, 0, 0,
1437 PIPE_BIND_SAMPLER_VIEW) &&
1438 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1439 PIPE_TEXTURE_2D, 0, 0,
1440 PIPE_BIND_SAMPLER_VIEW) &&
1441 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1442 PIPE_TEXTURE_2D, 0, 0,
1443 PIPE_BIND_SAMPLER_VIEW) &&
1444 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1445 PIPE_TEXTURE_2D, 0, 0,
1446 PIPE_BIND_SAMPLER_VIEW)) {
1447 extensions->ARB_ES3_compatibility = GL_TRUE;
1448 }
1449
1450 #ifdef HAVE_ST_VDPAU
1451 if (screen->get_video_param &&
1452 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1453 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1454 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1455 extensions->NV_vdpau_interop = GL_TRUE;
1456 }
1457 #endif
1458
1459 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1460 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1461 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1462 }
1463
1464 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1465 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1466 extensions->GREMEDY_string_marker = GL_TRUE;
1467
1468 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1469 int compute_supported_irs =
1470 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1471 PIPE_SHADER_CAP_SUPPORTED_IRS);
1472 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1473 (1 << PIPE_SHADER_IR_NIR))) {
1474 enum pipe_shader_ir ir =
1475 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1476 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1477 uint64_t grid_size[3], block_size[3];
1478 uint64_t max_local_size, max_threads_per_block;
1479
1480 screen->get_compute_param(screen, ir,
1481 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1482 screen->get_compute_param(screen, ir,
1483 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1484 screen->get_compute_param(screen, ir,
1485 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1486 &max_threads_per_block);
1487 screen->get_compute_param(screen, ir,
1488 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1489 &max_local_size);
1490
1491 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1492 consts->MaxComputeSharedMemorySize = max_local_size;
1493
1494 for (i = 0; i < 3; i++) {
1495 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1496 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1497 }
1498
1499 extensions->ARB_compute_shader =
1500 extensions->ARB_shader_image_load_store &&
1501 extensions->ARB_shader_atomic_counters;
1502
1503 if (extensions->ARB_compute_shader) {
1504 uint64_t max_variable_threads_per_block = 0;
1505
1506 screen->get_compute_param(screen, ir,
1507 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1508 &max_variable_threads_per_block);
1509
1510 for (i = 0; i < 3; i++) {
1511 /* Clamp the values to avoid having a local work group size
1512 * greater than the maximum number of invocations.
1513 */
1514 consts->MaxComputeVariableGroupSize[i] =
1515 MIN2(consts->MaxComputeWorkGroupSize[i],
1516 max_variable_threads_per_block);
1517 }
1518 consts->MaxComputeVariableGroupInvocations =
1519 max_variable_threads_per_block;
1520
1521 extensions->ARB_compute_variable_group_size =
1522 max_variable_threads_per_block > 0;
1523 }
1524 }
1525 }
1526
1527 extensions->ARB_texture_float =
1528 extensions->OES_texture_half_float &&
1529 extensions->OES_texture_float;
1530
1531 if (extensions->EXT_texture_filter_anisotropic &&
1532 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1533 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1534
1535 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1536
1537 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1538 * there's no clean way of telling whether we would support ES 3.1 from
1539 * here, so copy the condition from compute_version_es2 here. A lot of
1540 * these are redunant, but simpler to just have a (near-)exact copy here.
1541 */
1542 extensions->ARB_ES3_1_compatibility =
1543 extensions->ARB_ES3_compatibility &&
1544 extensions->ARB_arrays_of_arrays &&
1545 extensions->ARB_compute_shader &&
1546 extensions->ARB_draw_indirect &&
1547 extensions->ARB_explicit_uniform_location &&
1548 extensions->ARB_framebuffer_no_attachments &&
1549 extensions->ARB_shader_atomic_counters &&
1550 extensions->ARB_shader_image_load_store &&
1551 extensions->ARB_shader_image_size &&
1552 extensions->ARB_shader_storage_buffer_object &&
1553 extensions->ARB_shading_language_packing &&
1554 extensions->ARB_stencil_texturing &&
1555 extensions->ARB_texture_multisample &&
1556 extensions->ARB_gpu_shader5 &&
1557 extensions->EXT_shader_integer_mix;
1558
1559 extensions->OES_texture_cube_map_array =
1560 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1561 extensions->OES_geometry_shader &&
1562 extensions->ARB_texture_cube_map_array;
1563
1564 extensions->OES_viewport_array =
1565 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1566 extensions->OES_geometry_shader &&
1567 extensions->ARB_viewport_array;
1568
1569 extensions->OES_primitive_bounding_box =
1570 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1571
1572 consts->NoPrimitiveBoundingBoxOutput = true;
1573
1574 extensions->ANDROID_extension_pack_es31a =
1575 extensions->KHR_texture_compression_astc_ldr &&
1576 extensions->KHR_blend_equation_advanced &&
1577 extensions->OES_sample_variables &&
1578 extensions->ARB_shader_image_load_store &&
1579 extensions->ARB_texture_stencil8 &&
1580 extensions->ARB_texture_multisample &&
1581 extensions->OES_copy_image &&
1582 extensions->ARB_draw_buffers_blend &&
1583 extensions->OES_geometry_shader &&
1584 extensions->ARB_gpu_shader5 &&
1585 extensions->OES_primitive_bounding_box &&
1586 extensions->ARB_tessellation_shader &&
1587 extensions->ARB_texture_border_clamp &&
1588 extensions->OES_texture_buffer &&
1589 extensions->OES_texture_cube_map_array &&
1590 extensions->EXT_texture_sRGB_decode;
1591
1592 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1593 * before overall versions are selected. Also it's actually a subset of ES
1594 * 3.2, since it doesn't require ASTC or advanced blending.
1595 */
1596 extensions->ARB_ES3_2_compatibility =
1597 extensions->ARB_ES3_1_compatibility &&
1598 extensions->KHR_robustness &&
1599 extensions->ARB_copy_image &&
1600 extensions->ARB_draw_buffers_blend &&
1601 extensions->ARB_draw_elements_base_vertex &&
1602 extensions->OES_geometry_shader &&
1603 extensions->ARB_gpu_shader5 &&
1604 extensions->ARB_sample_shading &&
1605 extensions->ARB_tessellation_shader &&
1606 extensions->ARB_texture_border_clamp &&
1607 extensions->OES_texture_buffer &&
1608 extensions->ARB_texture_cube_map_array &&
1609 extensions->ARB_texture_stencil8 &&
1610 extensions->ARB_texture_multisample;
1611
1612 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1613 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1614 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1615 float max_dilate;
1616 bool pre_snap_triangles, pre_snap_points_lines;
1617
1618 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1619
1620 pre_snap_triangles =
1621 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1622 pre_snap_points_lines =
1623 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1624
1625 extensions->NV_conservative_raster =
1626 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1627
1628 if (extensions->NV_conservative_raster) {
1629 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1630 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1631 extensions->NV_conservative_raster_pre_snap =
1632 pre_snap_triangles && pre_snap_points_lines;
1633 }
1634 }
1635 }