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