1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
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:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
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.
27 **************************************************************************/
29 #include "compiler/nir/nir.h"
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/version.h"
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"
42 #include "st_context.h"
44 #include "st_extensions.h"
45 #include "st_format.h"
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.
53 static unsigned _min(unsigned a
, unsigned b
)
55 return (a
< b
) ? a
: b
;
58 static float _maxf(float a
, float b
)
60 return (a
> b
) ? a
: b
;
63 static int _clamp(int a
, int min
, int max
)
75 * Query driver to get implementation limits.
76 * Note that we have to limit/clamp against Mesa's internal limits too.
78 void st_init_limits(struct pipe_screen
*screen
,
79 struct gl_constants
*c
, struct gl_extensions
*extensions
,
88 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_LEVELS
),
92 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
93 MAX_3D_TEXTURE_LEVELS
);
95 c
->MaxCubeTextureLevels
96 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
97 MAX_CUBE_TEXTURE_LEVELS
);
100 = _min(1 << (c
->MaxTextureLevels
- 1), MAX_TEXTURE_RECT_SIZE
);
102 c
->MaxArrayTextureLayers
103 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
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.
109 c
->MaxViewportWidth
=
110 c
->MaxViewportHeight
=
111 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
114 screen
->get_param(screen
, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS
);
115 c
->ViewportSubpixelBits
=
116 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
118 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
119 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
120 1, MAX_DRAW_BUFFERS
);
122 c
->MaxDualSourceDrawBuffers
=
123 _clamp(screen
->get_param(screen
,
124 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
125 0, MAX_DRAW_BUFFERS
);
128 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
130 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
133 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
135 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
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.
140 c
->MinPointSize
= 1.0f
;
141 c
->MinPointSizeAA
= 0.0f
;
143 c
->MaxTextureMaxAnisotropy
=
145 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
147 c
->MaxTextureLodBias
=
148 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
150 c
->QuadsFollowProvokingVertexConvention
=
151 screen
->get_param(screen
,
152 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
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.
160 c
->MaxUniformBlockSize
= MIN2(c
->MaxUniformBlockSize
, INT_MAX
- 127);
162 if (c
->MaxUniformBlockSize
< 16384) {
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
;
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
);
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
;
181 if (sh
== PIPE_SHADER_COMPUTE
) {
182 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
185 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
186 if (!(supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)))
190 pc
->MaxTextureImageUnits
=
191 _min(screen
->get_shader_param(screen
, sh
,
192 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
193 MAX_TEXTURE_IMAGE_UNITS
);
195 pc
->MaxInstructions
=
196 pc
->MaxNativeInstructions
=
197 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
198 pc
->MaxAluInstructions
=
199 pc
->MaxNativeAluInstructions
=
200 screen
->get_shader_param(screen
, sh
,
201 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
202 pc
->MaxTexInstructions
=
203 pc
->MaxNativeTexInstructions
=
204 screen
->get_shader_param(screen
, sh
,
205 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
206 pc
->MaxTexIndirections
=
207 pc
->MaxNativeTexIndirections
=
208 screen
->get_shader_param(screen
, sh
,
209 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
211 pc
->MaxNativeAttribs
=
212 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
215 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
217 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
219 pc
->MaxUniformComponents
=
220 screen
->get_shader_param(screen
, sh
,
221 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / 4;
222 pc
->MaxUniformComponents
= MIN2(pc
->MaxUniformComponents
,
226 pc
->MaxNativeParameters
= pc
->MaxUniformComponents
/ 4;
227 pc
->MaxInputComponents
=
228 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
229 pc
->MaxOutputComponents
=
230 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
233 pc
->MaxUniformBlocks
=
234 screen
->get_shader_param(screen
, sh
,
235 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
236 if (pc
->MaxUniformBlocks
)
237 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
238 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
240 pc
->MaxCombinedUniformComponents
=
241 pc
->MaxUniformComponents
+
242 (uint64_t)c
->MaxUniformBlockSize
/ 4 * pc
->MaxUniformBlocks
;
244 pc
->MaxShaderStorageBlocks
=
245 screen
->get_shader_param(screen
, sh
,
246 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
248 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
251 * for separate atomic counters get the actual hw limits
252 * per stage on atomic counters and buffers
254 pc
->MaxAtomicCounters
= temp
;
255 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
257 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
259 * without separate atomic counters, reserve half of the available
260 * SSBOs for atomic buffers, and the other half for normal SSBOs.
262 pc
->MaxAtomicBuffers
= pc
->MaxShaderStorageBlocks
/ 2;
263 pc
->MaxShaderStorageBlocks
-= pc
->MaxAtomicBuffers
;
265 pc
->MaxImageUniforms
= screen
->get_shader_param(
266 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
268 /* Gallium doesn't really care about local vs. env parameters so use the
271 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
272 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
274 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
275 pc
->LowInt
.RangeMin
= 31;
276 pc
->LowInt
.RangeMax
= 30;
277 pc
->LowInt
.Precision
= 0;
278 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
281 /* TODO: make these more fine-grained if anyone needs it */
282 options
->MaxIfDepth
=
283 screen
->get_shader_param(screen
, sh
,
284 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
285 options
->EmitNoLoops
=
286 !screen
->get_shader_param(screen
, sh
,
287 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
288 options
->EmitNoMainReturn
=
289 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
291 options
->EmitNoCont
=
292 !screen
->get_shader_param(screen
, sh
,
293 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
295 options
->EmitNoIndirectInput
=
296 !screen
->get_shader_param(screen
, sh
,
297 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
298 options
->EmitNoIndirectOutput
=
299 !screen
->get_shader_param(screen
, sh
,
300 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
301 options
->EmitNoIndirectTemp
=
302 !screen
->get_shader_param(screen
, sh
,
303 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
304 options
->EmitNoIndirectUniform
=
305 !screen
->get_shader_param(screen
, sh
,
306 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
308 if (pc
->MaxNativeInstructions
&&
309 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
313 if (options
->EmitNoLoops
)
314 options
->MaxUnrollIterations
=
315 MIN2(screen
->get_shader_param(screen
, sh
,
316 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
319 options
->MaxUnrollIterations
=
320 screen
->get_shader_param(screen
, sh
,
321 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
323 options
->LowerCombinedClipCullDistance
= true;
324 options
->LowerBufferInterfaceBlocks
= true;
327 c
->MaxUserAssignableUniformLocations
=
328 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
+
329 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformComponents
+
330 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformComponents
+
331 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformComponents
+
332 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
;
334 c
->GLSLOptimizeConservatively
=
335 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
336 c
->LowerTessLevel
= true;
337 c
->LowerCsDerivedVariables
= true;
338 c
->PrimitiveRestartForPatches
=
339 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
341 c
->MaxCombinedTextureImageUnits
=
342 _min(c
->Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
343 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxTextureImageUnits
+
344 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxTextureImageUnits
+
345 c
->Program
[MESA_SHADER_GEOMETRY
].MaxTextureImageUnits
+
346 c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
+
347 c
->Program
[MESA_SHADER_COMPUTE
].MaxTextureImageUnits
,
348 MAX_COMBINED_TEXTURE_IMAGE_UNITS
);
350 /* This depends on program constants. */
351 c
->MaxTextureCoordUnits
352 = _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
353 MAX_TEXTURE_COORD_UNITS
);
356 _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
357 c
->MaxTextureCoordUnits
);
359 c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
=
360 MIN2(c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
, 16);
362 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
363 * of inputs. It's always 2 colors + N generic inputs. */
364 c
->MaxVarying
= screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
365 PIPE_SHADER_CAP_MAX_INPUTS
);
366 c
->MaxVarying
= MIN2(c
->MaxVarying
, MAX_VARYING
);
367 c
->MaxGeometryOutputVertices
=
368 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES
);
369 c
->MaxGeometryTotalOutputComponents
=
370 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS
);
371 c
->MaxGeometryShaderInvocations
=
372 screen
->get_param(screen
, PIPE_CAP_MAX_GS_INVOCATIONS
);
373 c
->MaxTessPatchComponents
=
374 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS
),
377 c
->MinProgramTexelOffset
=
378 screen
->get_param(screen
, PIPE_CAP_MIN_TEXEL_OFFSET
);
379 c
->MaxProgramTexelOffset
=
380 screen
->get_param(screen
, PIPE_CAP_MAX_TEXEL_OFFSET
);
382 c
->MaxProgramTextureGatherComponents
=
383 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
);
384 c
->MinProgramTextureGatherOffset
=
385 screen
->get_param(screen
, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET
);
386 c
->MaxProgramTextureGatherOffset
=
387 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET
);
389 c
->MaxTransformFeedbackBuffers
=
390 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
);
391 c
->MaxTransformFeedbackBuffers
= MIN2(c
->MaxTransformFeedbackBuffers
,
392 MAX_FEEDBACK_BUFFERS
);
393 c
->MaxTransformFeedbackSeparateComponents
=
394 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS
);
395 c
->MaxTransformFeedbackInterleavedComponents
=
396 screen
->get_param(screen
,
397 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS
);
398 c
->MaxVertexStreams
=
399 MAX2(1, screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_STREAMS
));
401 /* The vertex stream must fit into pipe_stream_output_info::stream */
402 assert(c
->MaxVertexStreams
<= 4);
404 c
->MaxVertexAttribStride
405 = screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE
);
407 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
410 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET
);
411 c
->MaxVertexAttribRelativeOffset
= MIN2(0xffff, temp
);
413 c
->StripTextureBorder
= GL_TRUE
;
415 c
->GLSLSkipStrictMaxUniformLimitCheck
=
416 screen
->get_param(screen
, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS
);
418 c
->UniformBufferOffsetAlignment
=
419 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
422 extensions
->ARB_uniform_buffer_object
= GL_TRUE
;
423 c
->MaxCombinedUniformBlocks
= c
->MaxUniformBufferBindings
=
424 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformBlocks
+
425 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformBlocks
+
426 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformBlocks
+
427 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformBlocks
+
428 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformBlocks
+
429 c
->Program
[MESA_SHADER_COMPUTE
].MaxUniformBlocks
;
430 assert(c
->MaxCombinedUniformBlocks
<= MAX_COMBINED_UNIFORM_BUFFERS
);
433 c
->GLSLFragCoordIsSysVal
=
434 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL
);
435 c
->GLSLFrontFacingIsSysVal
=
436 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
438 /* GL_ARB_get_program_binary
440 * The QT framework has a bug in their shader program cache, which is built
441 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
442 * we don't enable more than 1 binary format for compatibility profiles.
444 if (api
!= API_OPENGL_COMPAT
&&
445 screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
446 c
->NumProgramBinaryFormats
= 1;
448 c
->MaxAtomicBufferBindings
=
449 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
450 c
->MaxAtomicBufferSize
=
451 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
453 c
->MaxCombinedAtomicBuffers
=
454 MIN2(screen
->get_param(screen
,
455 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS
),
456 MAX_COMBINED_ATOMIC_BUFFERS
);
457 if (!c
->MaxCombinedAtomicBuffers
) {
458 c
->MaxCombinedAtomicBuffers
=
459 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
460 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
461 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
462 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
463 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
464 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
467 c
->MaxCombinedAtomicCounters
=
468 screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS
);
469 if (!c
->MaxCombinedAtomicCounters
)
470 c
->MaxCombinedAtomicCounters
= MAX_ATOMIC_COUNTERS
;
472 if (c
->MaxCombinedAtomicBuffers
> 0) {
473 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
474 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
477 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
478 c
->ShaderStorageBufferOffsetAlignment
=
479 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
480 if (c
->ShaderStorageBufferOffsetAlignment
) {
481 c
->MaxCombinedShaderStorageBlocks
=
482 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS
),
483 MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
484 if (!c
->MaxCombinedShaderStorageBlocks
) {
485 c
->MaxCombinedShaderStorageBlocks
=
486 c
->Program
[MESA_SHADER_VERTEX
].MaxShaderStorageBlocks
+
487 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxShaderStorageBlocks
+
488 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxShaderStorageBlocks
+
489 c
->Program
[MESA_SHADER_GEOMETRY
].MaxShaderStorageBlocks
+
490 c
->Program
[MESA_SHADER_FRAGMENT
].MaxShaderStorageBlocks
;
491 assert(c
->MaxCombinedShaderStorageBlocks
< MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
493 c
->MaxShaderStorageBufferBindings
= c
->MaxCombinedShaderStorageBlocks
;
495 c
->MaxCombinedShaderOutputResources
+=
496 c
->MaxCombinedShaderStorageBlocks
;
497 c
->MaxShaderStorageBlockSize
=
498 screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_BUFFER_SIZE
);
499 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
502 c
->MaxCombinedImageUniforms
=
503 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
504 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
505 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
506 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
507 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
508 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
509 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
510 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
511 if (c
->MaxCombinedImageUniforms
) {
512 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
513 extensions
->ARB_shader_image_size
= GL_TRUE
;
516 /* ARB_framebuffer_no_attachments */
517 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
518 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
519 /* NOTE: we cheat here a little by assuming that
520 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
521 * number of layers as we need, although we technically
522 * could have more the generality is not really useful
525 c
->MaxFramebufferLayers
=
526 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
528 c
->MaxWindowRectangles
=
529 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
531 c
->SparseBufferPageSize
=
532 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
534 c
->AllowMappedBuffersDuringExecution
=
535 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
537 c
->UseSTD430AsDefaultPacking
=
538 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
540 c
->MaxSubpixelPrecisionBiasBits
=
541 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
543 c
->ConservativeRasterDilateRange
[0] =
544 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
545 c
->ConservativeRasterDilateRange
[1] =
546 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
547 c
->ConservativeRasterDilateGranularity
=
548 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
550 /* limit the max combined shader output resources to a driver limit */
551 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
552 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
553 c
->MaxCombinedShaderOutputResources
= temp
;
558 * Given a member \c x of struct gl_extensions, return offset of
561 #define o(x) offsetof(struct gl_extensions, x)
564 struct st_extension_cap_mapping
{
565 int extension_offset
;
569 struct st_extension_format_mapping
{
570 int extension_offset
[2];
571 enum pipe_format format
[32];
573 /* If TRUE, at least one format must be supported for the extensions to be
574 * advertised. If FALSE, all the formats must be supported. */
575 GLboolean need_at_least_one
;
579 * Enable extensions if certain pipe formats are supported by the driver.
580 * What extensions will be enabled and what formats must be supported is
581 * described by the array of st_extension_format_mapping.
583 * target and bind_flags are passed to is_format_supported.
586 init_format_extensions(struct pipe_screen
*screen
,
587 struct gl_extensions
*extensions
,
588 const struct st_extension_format_mapping
*mapping
,
589 unsigned num_mappings
,
590 enum pipe_texture_target target
,
593 GLboolean
*extension_table
= (GLboolean
*) extensions
;
596 int num_formats
= ARRAY_SIZE(mapping
->format
);
597 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
599 for (i
= 0; i
< num_mappings
; i
++) {
600 int num_supported
= 0;
602 /* Examine each format in the list. */
603 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
604 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
605 target
, 0, 0, bind_flags
)) {
610 if (!num_supported
||
611 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
615 /* Enable all extensions in the list. */
616 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
617 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
623 * Given a list of formats and bind flags, return the maximum number
624 * of samples supported by any of those formats.
627 get_max_samples_for_formats(struct pipe_screen
*screen
,
628 unsigned num_formats
,
629 const enum pipe_format
*formats
,
630 unsigned max_samples
,
635 for (i
= max_samples
; i
> 0; --i
) {
636 for (f
= 0; f
< num_formats
; f
++) {
637 if (screen
->is_format_supported(screen
, formats
[f
],
638 PIPE_TEXTURE_2D
, i
, i
, bind
)) {
647 get_max_samples_for_formats_advanced(struct pipe_screen
*screen
,
648 unsigned num_formats
,
649 const enum pipe_format
*formats
,
650 unsigned max_samples
,
651 unsigned num_storage_samples
,
656 for (i
= max_samples
; i
> 0; --i
) {
657 for (f
= 0; f
< num_formats
; f
++) {
658 if (screen
->is_format_supported(screen
, formats
[f
], PIPE_TEXTURE_2D
,
659 i
, num_storage_samples
, bind
)) {
668 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
669 * which GL extensions are supported.
670 * Quite a few extensions are always supported because they are standard
671 * features or can be built on top of other gallium features.
672 * Some fine tuning may still be needed.
674 void st_init_extensions(struct pipe_screen
*screen
,
675 struct gl_constants
*consts
,
676 struct gl_extensions
*extensions
,
677 struct st_config_options
*options
,
681 GLboolean
*extension_table
= (GLboolean
*) extensions
;
683 static const struct st_extension_cap_mapping cap_mapping
[] = {
684 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
685 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
686 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
687 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
688 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
689 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
690 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
691 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
692 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
693 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
694 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
695 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
696 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
697 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
698 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
699 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
700 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
701 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
702 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
703 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
704 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
705 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
706 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
707 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
708 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
709 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
710 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
711 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
712 { o(ARB_sample_locations
), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS
},
713 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
714 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
715 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
716 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
717 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
718 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
719 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
720 { o(ARB_shader_texture_lod
), PIPE_CAP_SM3
},
721 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
722 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
723 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
724 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
725 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE
},
726 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
727 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
728 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
729 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
730 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
731 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
732 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
733 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
735 { o(KHR_blend_equation_advanced
), PIPE_CAP_TGSI_FS_FBFETCH
},
737 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
738 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
739 { o(EXT_disjoint_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
740 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
741 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
742 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
743 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
744 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
745 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
746 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
747 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
748 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
749 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
750 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
752 { o(AMD_depth_clamp_separate
), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE
},
753 { o(AMD_framebuffer_multisample_advanced
), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS
},
754 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
755 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
756 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
757 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
758 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
759 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
760 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
761 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
762 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
763 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
764 /* GL_NV_point_sprite is not supported by gallium because we don't
765 * support the GL_POINT_SPRITE_R_MODE_NV option. */
767 { o(OES_standard_derivatives
), PIPE_CAP_SM3
},
768 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
769 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
772 /* Required: render target and sampler support */
773 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
774 { { o(ARB_texture_float
) },
775 { PIPE_FORMAT_R32G32B32A32_FLOAT
,
776 PIPE_FORMAT_R16G16B16A16_FLOAT
} },
778 { { o(OES_texture_float
) },
779 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
781 { { o(OES_texture_half_float
) },
782 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
784 { { o(ARB_texture_rgb10_a2ui
) },
785 { PIPE_FORMAT_R10G10B10A2_UINT
,
786 PIPE_FORMAT_B10G10R10A2_UINT
},
787 GL_TRUE
}, /* at least one format must be supported */
789 { { o(EXT_framebuffer_sRGB
) },
790 { PIPE_FORMAT_A8B8G8R8_SRGB
,
791 PIPE_FORMAT_B8G8R8A8_SRGB
,
792 PIPE_FORMAT_R8G8B8A8_SRGB
},
793 GL_TRUE
}, /* at least one format must be supported */
795 { { o(EXT_packed_float
) },
796 { PIPE_FORMAT_R11G11B10_FLOAT
} },
798 { { o(EXT_texture_integer
) },
799 { PIPE_FORMAT_R32G32B32A32_UINT
,
800 PIPE_FORMAT_R32G32B32A32_SINT
} },
802 { { o(ARB_texture_rg
) },
803 { PIPE_FORMAT_R8_UNORM
,
804 PIPE_FORMAT_R8G8_UNORM
} },
807 /* Required: depth stencil and sampler support */
808 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
809 { { o(ARB_depth_buffer_float
) },
810 { PIPE_FORMAT_Z32_FLOAT
,
811 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
814 /* Required: sampler support */
815 static const struct st_extension_format_mapping texture_mapping
[] = {
816 { { o(ARB_texture_compression_rgtc
) },
817 { PIPE_FORMAT_RGTC1_UNORM
,
818 PIPE_FORMAT_RGTC1_SNORM
,
819 PIPE_FORMAT_RGTC2_UNORM
,
820 PIPE_FORMAT_RGTC2_SNORM
} },
822 { { o(EXT_texture_compression_latc
) },
823 { PIPE_FORMAT_LATC1_UNORM
,
824 PIPE_FORMAT_LATC1_SNORM
,
825 PIPE_FORMAT_LATC2_UNORM
,
826 PIPE_FORMAT_LATC2_SNORM
} },
828 { { o(EXT_texture_compression_s3tc
),
829 o(ANGLE_texture_compression_dxt
) },
830 { PIPE_FORMAT_DXT1_RGB
,
831 PIPE_FORMAT_DXT1_RGBA
,
832 PIPE_FORMAT_DXT3_RGBA
,
833 PIPE_FORMAT_DXT5_RGBA
} },
835 { { o(ARB_texture_compression_bptc
) },
836 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
837 PIPE_FORMAT_BPTC_SRGBA
,
838 PIPE_FORMAT_BPTC_RGB_FLOAT
,
839 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
841 { { o(KHR_texture_compression_astc_ldr
),
842 o(KHR_texture_compression_astc_sliced_3d
) },
843 { PIPE_FORMAT_ASTC_4x4
,
844 PIPE_FORMAT_ASTC_5x4
,
845 PIPE_FORMAT_ASTC_5x5
,
846 PIPE_FORMAT_ASTC_6x5
,
847 PIPE_FORMAT_ASTC_6x6
,
848 PIPE_FORMAT_ASTC_8x5
,
849 PIPE_FORMAT_ASTC_8x6
,
850 PIPE_FORMAT_ASTC_8x8
,
851 PIPE_FORMAT_ASTC_10x5
,
852 PIPE_FORMAT_ASTC_10x6
,
853 PIPE_FORMAT_ASTC_10x8
,
854 PIPE_FORMAT_ASTC_10x10
,
855 PIPE_FORMAT_ASTC_12x10
,
856 PIPE_FORMAT_ASTC_12x12
,
857 PIPE_FORMAT_ASTC_4x4_SRGB
,
858 PIPE_FORMAT_ASTC_5x4_SRGB
,
859 PIPE_FORMAT_ASTC_5x5_SRGB
,
860 PIPE_FORMAT_ASTC_6x5_SRGB
,
861 PIPE_FORMAT_ASTC_6x6_SRGB
,
862 PIPE_FORMAT_ASTC_8x5_SRGB
,
863 PIPE_FORMAT_ASTC_8x6_SRGB
,
864 PIPE_FORMAT_ASTC_8x8_SRGB
,
865 PIPE_FORMAT_ASTC_10x5_SRGB
,
866 PIPE_FORMAT_ASTC_10x6_SRGB
,
867 PIPE_FORMAT_ASTC_10x8_SRGB
,
868 PIPE_FORMAT_ASTC_10x10_SRGB
,
869 PIPE_FORMAT_ASTC_12x10_SRGB
,
870 PIPE_FORMAT_ASTC_12x12_SRGB
} },
872 /* ASTC software fallback support. */
873 { { o(KHR_texture_compression_astc_ldr
),
874 o(KHR_texture_compression_astc_sliced_3d
) },
875 { PIPE_FORMAT_R8G8B8A8_UNORM
,
876 PIPE_FORMAT_R8G8B8A8_SRGB
} },
878 { { o(EXT_texture_shared_exponent
) },
879 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
881 { { o(EXT_texture_snorm
) },
882 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
884 { { o(EXT_texture_sRGB
),
885 o(EXT_texture_sRGB_decode
) },
886 { PIPE_FORMAT_A8B8G8R8_SRGB
,
887 PIPE_FORMAT_B8G8R8A8_SRGB
,
888 PIPE_FORMAT_A8R8G8B8_SRGB
,
889 PIPE_FORMAT_R8G8B8A8_SRGB
},
890 GL_TRUE
}, /* at least one format must be supported */
892 { { o(EXT_texture_type_2_10_10_10_REV
) },
893 { PIPE_FORMAT_R10G10B10A2_UNORM
,
894 PIPE_FORMAT_B10G10R10A2_UNORM
},
895 GL_TRUE
}, /* at least one format must be supported */
897 { { o(ATI_texture_compression_3dc
) },
898 { PIPE_FORMAT_LATC2_UNORM
} },
900 { { o(MESA_ycbcr_texture
) },
903 GL_TRUE
}, /* at least one format must be supported */
905 { { o(OES_compressed_ETC1_RGB8_texture
) },
906 { PIPE_FORMAT_ETC1_RGB8
,
907 PIPE_FORMAT_R8G8B8A8_UNORM
},
908 GL_TRUE
}, /* at least one format must be supported */
910 { { o(ARB_stencil_texturing
),
911 o(ARB_texture_stencil8
) },
912 { PIPE_FORMAT_X24S8_UINT
,
913 PIPE_FORMAT_S8X24_UINT
},
914 GL_TRUE
}, /* at least one format must be supported */
917 /* Required: vertex fetch support. */
918 static const struct st_extension_format_mapping vertex_mapping
[] = {
919 { { o(EXT_vertex_array_bgra
) },
920 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
921 { { o(ARB_vertex_type_2_10_10_10_rev
) },
922 { PIPE_FORMAT_R10G10B10A2_UNORM
,
923 PIPE_FORMAT_B10G10R10A2_UNORM
,
924 PIPE_FORMAT_R10G10B10A2_SNORM
,
925 PIPE_FORMAT_B10G10R10A2_SNORM
,
926 PIPE_FORMAT_R10G10B10A2_USCALED
,
927 PIPE_FORMAT_B10G10R10A2_USCALED
,
928 PIPE_FORMAT_R10G10B10A2_SSCALED
,
929 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
930 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
931 { PIPE_FORMAT_R11G11B10_FLOAT
} },
934 static const struct st_extension_format_mapping tbo_rgb32
[] = {
935 { {o(ARB_texture_buffer_object_rgb32
) },
936 { PIPE_FORMAT_R32G32B32_FLOAT
,
937 PIPE_FORMAT_R32G32B32_UINT
,
938 PIPE_FORMAT_R32G32B32_SINT
,
943 * Extensions that are supported by all Gallium drivers:
945 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
946 extensions
->ARB_depth_texture
= GL_TRUE
;
947 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
948 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
949 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
950 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
951 extensions
->ARB_fragment_program
= GL_TRUE
;
952 extensions
->ARB_fragment_program_shadow
= GL_TRUE
;
953 extensions
->ARB_fragment_shader
= GL_TRUE
;
954 extensions
->ARB_half_float_vertex
= GL_TRUE
;
955 extensions
->ARB_internalformat_query
= GL_TRUE
;
956 extensions
->ARB_internalformat_query2
= GL_TRUE
;
957 extensions
->ARB_map_buffer_range
= GL_TRUE
;
958 extensions
->ARB_shadow
= GL_TRUE
;
959 extensions
->ARB_sync
= GL_TRUE
;
960 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
961 extensions
->ARB_texture_cube_map
= GL_TRUE
;
962 extensions
->ARB_texture_env_combine
= GL_TRUE
;
963 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
964 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
965 extensions
->ARB_vertex_program
= GL_TRUE
;
966 extensions
->ARB_vertex_shader
= GL_TRUE
;
968 extensions
->EXT_blend_color
= GL_TRUE
;
969 extensions
->EXT_blend_func_separate
= GL_TRUE
;
970 extensions
->EXT_blend_minmax
= GL_TRUE
;
971 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
972 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
973 extensions
->EXT_point_parameters
= GL_TRUE
;
974 extensions
->EXT_provoking_vertex
= GL_TRUE
;
975 extensions
->EXT_stencil_two_side
= GL_TRUE
;
976 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
978 extensions
->ATI_fragment_shader
= GL_TRUE
;
979 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
981 extensions
->MESA_pack_invert
= GL_TRUE
;
983 extensions
->NV_fog_distance
= GL_TRUE
;
984 extensions
->NV_texture_env_combine4
= GL_TRUE
;
985 extensions
->NV_texture_rectangle
= GL_TRUE
;
987 extensions
->OES_EGL_image
= GL_TRUE
;
988 extensions
->OES_EGL_image_external
= GL_TRUE
;
989 extensions
->OES_draw_texture
= GL_TRUE
;
991 /* Expose the extensions which directly correspond to gallium caps. */
992 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
993 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
994 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
998 /* Expose the extensions which directly correspond to gallium formats. */
999 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
1000 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
1001 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
1002 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
1003 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
1004 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
1005 init_format_extensions(screen
, extensions
, texture_mapping
,
1006 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
1007 PIPE_BIND_SAMPLER_VIEW
);
1008 init_format_extensions(screen
, extensions
, vertex_mapping
,
1009 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
1010 PIPE_BIND_VERTEX_BUFFER
);
1012 /* Figure out GLSL support and set GLSLVersion to it. */
1013 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
1014 consts
->GLSLVersionCompat
=
1015 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
1017 const unsigned GLSLVersion
=
1018 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
1019 consts
->GLSLVersion
;
1021 _mesa_override_glsl_version(consts
);
1023 if (options
->force_glsl_version
> 0 &&
1024 options
->force_glsl_version
<= GLSLVersion
) {
1025 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
1028 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
1030 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
1032 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
1034 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
1036 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
1038 if (GLSLVersion
>= 400)
1039 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1040 if (GLSLVersion
>= 410)
1041 extensions
->ARB_shader_precision
= GL_TRUE
;
1043 /* This extension needs full OpenGL 3.2, but we don't know if that's
1044 * supported at this point. Only check the GLSL version. */
1045 if (GLSLVersion
>= 150 &&
1046 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
1047 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
1050 if (GLSLVersion
>= 140) {
1051 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
1052 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
1055 if (GLSLVersion
>= 130) {
1056 consts
->NativeIntegers
= GL_TRUE
;
1057 consts
->MaxClipPlanes
= 8;
1059 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
1060 consts
->VertexID_is_zero_based
= GL_TRUE
;
1063 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1064 extensions
->ARB_conservative_depth
= GL_TRUE
;
1065 extensions
->ARB_shading_language_packing
= GL_TRUE
;
1066 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
1067 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
1068 extensions
->ARB_texture_query_levels
= GL_TRUE
;
1070 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
1072 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1073 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1074 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1076 /* Optional integer support for GLSL 1.2. */
1077 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1078 PIPE_SHADER_CAP_INTEGERS
) &&
1079 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1080 PIPE_SHADER_CAP_INTEGERS
)) {
1081 consts
->NativeIntegers
= GL_TRUE
;
1083 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1086 /* Integer textures make no sense before GLSL 1.30 */
1087 extensions
->EXT_texture_integer
= GL_FALSE
;
1090 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
1092 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1094 /* Below are the cases which cannot be moved into tables easily. */
1096 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1097 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1098 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1099 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1100 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1103 /* What this is really checking for is the ability to support multiple
1104 * invocations of a geometry shader. There is no separate cap for that, so
1105 * we check the GLSLVersion.
1107 if (GLSLVersion
>= 400 &&
1108 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1109 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1110 extensions
->OES_geometry_shader
= GL_TRUE
;
1113 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1114 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1116 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1117 extensions
->ARB_gpu_shader5
;
1119 /* Maximum sample count. */
1121 static const enum pipe_format color_formats
[] = {
1122 PIPE_FORMAT_R8G8B8A8_UNORM
,
1123 PIPE_FORMAT_B8G8R8A8_UNORM
,
1124 PIPE_FORMAT_A8R8G8B8_UNORM
,
1125 PIPE_FORMAT_A8B8G8R8_UNORM
,
1127 static const enum pipe_format depth_formats
[] = {
1128 PIPE_FORMAT_Z16_UNORM
,
1129 PIPE_FORMAT_Z24X8_UNORM
,
1130 PIPE_FORMAT_X8Z24_UNORM
,
1131 PIPE_FORMAT_Z32_UNORM
,
1132 PIPE_FORMAT_Z32_FLOAT
1134 static const enum pipe_format int_formats
[] = {
1135 PIPE_FORMAT_R8G8B8A8_SINT
1137 static const enum pipe_format void_formats
[] = {
1141 consts
->MaxSamples
=
1142 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1144 PIPE_BIND_RENDER_TARGET
);
1146 consts
->MaxImageSamples
=
1147 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1149 PIPE_BIND_SHADER_IMAGE
);
1151 consts
->MaxColorTextureSamples
=
1152 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1153 color_formats
, consts
->MaxSamples
,
1154 PIPE_BIND_SAMPLER_VIEW
);
1156 consts
->MaxDepthTextureSamples
=
1157 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1158 depth_formats
, consts
->MaxSamples
,
1159 PIPE_BIND_SAMPLER_VIEW
);
1161 consts
->MaxIntegerSamples
=
1162 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1163 int_formats
, consts
->MaxSamples
,
1164 PIPE_BIND_SAMPLER_VIEW
);
1166 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1167 consts
->MaxFramebufferSamples
=
1168 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1170 PIPE_BIND_RENDER_TARGET
);
1172 if (extensions
->AMD_framebuffer_multisample_advanced
) {
1173 /* AMD_framebuffer_multisample_advanced */
1174 /* This can be greater than storage samples. */
1175 consts
->MaxColorFramebufferSamples
=
1176 get_max_samples_for_formats_advanced(screen
,
1177 ARRAY_SIZE(color_formats
),
1180 PIPE_BIND_RENDER_TARGET
);
1182 /* If the driver supports N color samples, it means it supports
1183 * N samples and N storage samples. N samples >= N storage
1186 consts
->MaxColorFramebufferStorageSamples
= consts
->MaxSamples
;
1187 consts
->MaxDepthStencilFramebufferSamples
=
1188 consts
->MaxDepthTextureSamples
;
1190 assert(consts
->MaxColorFramebufferSamples
>=
1191 consts
->MaxDepthStencilFramebufferSamples
);
1192 assert(consts
->MaxDepthStencilFramebufferSamples
>=
1193 consts
->MaxColorFramebufferStorageSamples
);
1195 consts
->NumSupportedMultisampleModes
= 0;
1197 unsigned depth_samples_supported
= 0;
1199 for (unsigned samples
= 2;
1200 samples
<= consts
->MaxDepthStencilFramebufferSamples
;
1202 if (screen
->is_format_supported(screen
, PIPE_FORMAT_Z32_FLOAT
,
1203 PIPE_TEXTURE_2D
, samples
, samples
,
1204 PIPE_BIND_DEPTH_STENCIL
))
1205 depth_samples_supported
|= 1 << samples
;
1208 for (unsigned samples
= 2;
1209 samples
<= consts
->MaxColorFramebufferSamples
;
1211 for (unsigned depth_samples
= 2;
1212 depth_samples
<= samples
; depth_samples
++) {
1213 if (!(depth_samples_supported
& (1 << depth_samples
)))
1216 for (unsigned storage_samples
= 2;
1217 storage_samples
<= depth_samples
; storage_samples
++) {
1218 if (screen
->is_format_supported(screen
,
1219 PIPE_FORMAT_R8G8B8A8_UNORM
,
1223 PIPE_BIND_RENDER_TARGET
)) {
1224 unsigned i
= consts
->NumSupportedMultisampleModes
;
1226 assert(i
< ARRAY_SIZE(consts
->SupportedMultisampleModes
));
1227 consts
->SupportedMultisampleModes
[i
].NumColorSamples
=
1229 consts
->SupportedMultisampleModes
[i
].NumColorStorageSamples
=
1231 consts
->SupportedMultisampleModes
[i
].NumDepthStencilSamples
=
1233 consts
->NumSupportedMultisampleModes
++;
1241 if (consts
->MaxSamples
>= 2) {
1242 /* Real MSAA support */
1243 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1244 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1246 else if (consts
->MaxSamples
> 0 &&
1247 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1248 /* fake MSAA support */
1249 consts
->FakeSWMSAA
= GL_TRUE
;
1250 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1251 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1252 extensions
->ARB_texture_multisample
= GL_TRUE
;
1255 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1256 !options
->disable_blend_func_extended
)
1257 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1259 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1260 extensions
->ARB_timer_query
) {
1261 extensions
->EXT_timer_query
= GL_TRUE
;
1264 if (extensions
->ARB_transform_feedback2
&&
1265 extensions
->ARB_draw_instanced
) {
1266 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1268 if (options
->force_glsl_extensions_warn
)
1269 consts
->ForceGLSLExtensionsWarn
= 1;
1271 if (options
->disable_glsl_line_continuations
)
1272 consts
->DisableGLSLLineContinuations
= 1;
1274 if (options
->allow_glsl_extension_directive_midshader
)
1275 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1277 if (options
->allow_glsl_builtin_const_expression
)
1278 consts
->AllowGLSLBuiltinConstantExpression
= GL_TRUE
;
1280 if (options
->allow_glsl_relaxed_es
)
1281 consts
->AllowGLSLRelaxedES
= GL_TRUE
;
1283 if (options
->allow_glsl_layout_qualifier_on_function_parameters
)
1284 consts
->AllowLayoutQualifiersOnFunctionParameters
= GL_TRUE
;
1286 consts
->MinMapBufferAlignment
=
1287 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1289 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1290 if (api
== API_OPENGL_COMPAT
&&
1291 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1292 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1294 if (extensions
->ARB_texture_buffer_object
) {
1295 consts
->MaxTextureBufferSize
=
1296 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1298 consts
->TextureBufferOffsetAlignment
=
1299 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1301 if (consts
->TextureBufferOffsetAlignment
)
1302 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1304 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1305 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1306 PIPE_BIND_SAMPLER_VIEW
);
1309 extensions
->OES_texture_buffer
=
1310 extensions
->ARB_texture_buffer_object
&&
1311 extensions
->ARB_texture_buffer_range
&&
1312 extensions
->ARB_texture_buffer_object_rgb32
&&
1313 extensions
->ARB_shader_image_load_store
;
1315 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1316 * If the number of available texture indirections is very limited, then we
1317 * prefer to disable varying packing rather than run the risk of varying
1318 * packing preventing a shader from running.
1320 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1321 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1322 /* We can't disable varying packing if transform feedback is available,
1323 * because transform feedback code assumes a packed varying layout.
1325 if (!extensions
->EXT_transform_feedback
)
1326 consts
->DisableVaryingPacking
= GL_TRUE
;
1329 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1330 if (consts
->MaxViewports
>= 16) {
1331 if (GLSLVersion
>= 400) {
1332 consts
->ViewportBounds
.Min
= -32768.0;
1333 consts
->ViewportBounds
.Max
= 32767.0;
1335 consts
->ViewportBounds
.Min
= -16384.0;
1336 consts
->ViewportBounds
.Max
= 16383.0;
1338 extensions
->ARB_viewport_array
= GL_TRUE
;
1339 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1340 if (extensions
->AMD_vertex_shader_layer
)
1341 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1344 if (extensions
->AMD_vertex_shader_layer
&&
1345 extensions
->AMD_vertex_shader_viewport_index
&&
1346 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1347 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1349 /* ARB_framebuffer_no_attachments */
1350 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1351 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1352 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1353 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1354 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1356 /* GL_ARB_ES3_compatibility.
1357 * Check requirements for GLSL ES 3.00.
1359 if (GLSLVersion
>= 130 &&
1360 extensions
->ARB_uniform_buffer_object
&&
1361 extensions
->ARB_shader_bit_encoding
&&
1362 extensions
->NV_primitive_restart
&&
1363 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1364 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1365 /* Requirements for ETC2 emulation. */
1366 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1367 PIPE_TEXTURE_2D
, 0, 0,
1368 PIPE_BIND_SAMPLER_VIEW
) &&
1369 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_SRGB
,
1370 PIPE_TEXTURE_2D
, 0, 0,
1371 PIPE_BIND_SAMPLER_VIEW
) &&
1372 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1373 PIPE_TEXTURE_2D
, 0, 0,
1374 PIPE_BIND_SAMPLER_VIEW
) &&
1375 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1376 PIPE_TEXTURE_2D
, 0, 0,
1377 PIPE_BIND_SAMPLER_VIEW
) &&
1378 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1379 PIPE_TEXTURE_2D
, 0, 0,
1380 PIPE_BIND_SAMPLER_VIEW
) &&
1381 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1382 PIPE_TEXTURE_2D
, 0, 0,
1383 PIPE_BIND_SAMPLER_VIEW
)) {
1384 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1387 #ifdef HAVE_ST_VDPAU
1388 if (screen
->get_video_param
&&
1389 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1390 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1391 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1392 extensions
->NV_vdpau_interop
= GL_TRUE
;
1396 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1397 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1398 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1401 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1402 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1403 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1405 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1406 int compute_supported_irs
=
1407 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1408 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1409 if (compute_supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)) {
1410 uint64_t grid_size
[3], block_size
[3];
1411 uint64_t max_local_size
, max_threads_per_block
;
1413 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1414 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1415 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1416 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1417 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1418 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1419 &max_threads_per_block
);
1420 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1421 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1424 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1425 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1427 for (i
= 0; i
< 3; i
++) {
1428 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1429 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1432 extensions
->ARB_compute_shader
=
1433 extensions
->ARB_shader_image_load_store
&&
1434 extensions
->ARB_shader_atomic_counters
;
1436 if (extensions
->ARB_compute_shader
) {
1437 uint64_t max_variable_threads_per_block
= 0;
1439 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1440 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1441 &max_variable_threads_per_block
);
1443 for (i
= 0; i
< 3; i
++) {
1444 /* Clamp the values to avoid having a local work group size
1445 * greater than the maximum number of invocations.
1447 consts
->MaxComputeVariableGroupSize
[i
] =
1448 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1449 max_variable_threads_per_block
);
1451 consts
->MaxComputeVariableGroupInvocations
=
1452 max_variable_threads_per_block
;
1454 extensions
->ARB_compute_variable_group_size
=
1455 max_variable_threads_per_block
> 0;
1460 if (extensions
->EXT_texture_filter_anisotropic
&&
1461 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1462 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1464 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1466 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1467 * there's no clean way of telling whether we would support ES 3.1 from
1468 * here, so copy the condition from compute_version_es2 here. A lot of
1469 * these are redunant, but simpler to just have a (near-)exact copy here.
1471 extensions
->ARB_ES3_1_compatibility
=
1472 extensions
->ARB_ES3_compatibility
&&
1473 extensions
->ARB_arrays_of_arrays
&&
1474 extensions
->ARB_compute_shader
&&
1475 extensions
->ARB_draw_indirect
&&
1476 extensions
->ARB_explicit_uniform_location
&&
1477 extensions
->ARB_framebuffer_no_attachments
&&
1478 extensions
->ARB_shader_atomic_counters
&&
1479 extensions
->ARB_shader_image_load_store
&&
1480 extensions
->ARB_shader_image_size
&&
1481 extensions
->ARB_shader_storage_buffer_object
&&
1482 extensions
->ARB_shading_language_packing
&&
1483 extensions
->ARB_stencil_texturing
&&
1484 extensions
->ARB_texture_multisample
&&
1485 extensions
->ARB_gpu_shader5
&&
1486 extensions
->EXT_shader_integer_mix
;
1488 extensions
->OES_texture_cube_map_array
=
1489 extensions
->ARB_ES3_1_compatibility
&&
1490 extensions
->OES_geometry_shader
&&
1491 extensions
->ARB_texture_cube_map_array
;
1493 extensions
->OES_viewport_array
=
1494 extensions
->ARB_ES3_1_compatibility
&&
1495 extensions
->OES_geometry_shader
&&
1496 extensions
->ARB_viewport_array
;
1498 extensions
->OES_primitive_bounding_box
= extensions
->ARB_ES3_1_compatibility
;
1499 consts
->NoPrimitiveBoundingBoxOutput
= true;
1501 extensions
->ANDROID_extension_pack_es31a
=
1502 extensions
->KHR_texture_compression_astc_ldr
&&
1503 extensions
->KHR_blend_equation_advanced
&&
1504 extensions
->OES_sample_variables
&&
1505 extensions
->ARB_shader_image_load_store
&&
1506 extensions
->ARB_texture_stencil8
&&
1507 extensions
->ARB_texture_multisample
&&
1508 extensions
->OES_copy_image
&&
1509 extensions
->ARB_draw_buffers_blend
&&
1510 extensions
->OES_geometry_shader
&&
1511 extensions
->ARB_gpu_shader5
&&
1512 extensions
->OES_primitive_bounding_box
&&
1513 extensions
->ARB_tessellation_shader
&&
1514 extensions
->ARB_texture_border_clamp
&&
1515 extensions
->OES_texture_buffer
&&
1516 extensions
->OES_texture_cube_map_array
&&
1517 extensions
->EXT_texture_sRGB_decode
;
1519 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1520 * before overall versions are selected. Also it's actually a subset of ES
1521 * 3.2, since it doesn't require ASTC or advanced blending.
1523 extensions
->ARB_ES3_2_compatibility
=
1524 extensions
->ARB_ES3_1_compatibility
&&
1525 extensions
->KHR_robustness
&&
1526 extensions
->ARB_copy_image
&&
1527 extensions
->ARB_draw_buffers_blend
&&
1528 extensions
->ARB_draw_elements_base_vertex
&&
1529 extensions
->OES_geometry_shader
&&
1530 extensions
->ARB_gpu_shader5
&&
1531 extensions
->ARB_sample_shading
&&
1532 extensions
->ARB_tessellation_shader
&&
1533 extensions
->ARB_texture_border_clamp
&&
1534 extensions
->OES_texture_buffer
&&
1535 extensions
->ARB_texture_cube_map_array
&&
1536 extensions
->ARB_texture_stencil8
&&
1537 extensions
->ARB_texture_multisample
;
1539 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1540 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1541 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1543 bool pre_snap_triangles
, pre_snap_points_lines
;
1545 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1547 pre_snap_triangles
=
1548 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1549 pre_snap_points_lines
=
1550 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1552 extensions
->NV_conservative_raster
=
1553 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1555 if (extensions
->NV_conservative_raster
) {
1556 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1557 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1558 extensions
->NV_conservative_raster_pre_snap
=
1559 pre_snap_triangles
&& pre_snap_points_lines
;