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
,
84 boolean can_ubo
= TRUE
;
86 bool ssbo_atomic
= true;
89 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_LEVELS
),
93 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
94 MAX_3D_TEXTURE_LEVELS
);
96 c
->MaxCubeTextureLevels
97 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
98 MAX_CUBE_TEXTURE_LEVELS
);
100 c
->MaxTextureRectSize
101 = _min(1 << (c
->MaxTextureLevels
- 1), MAX_TEXTURE_RECT_SIZE
);
103 c
->MaxArrayTextureLayers
104 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
106 /* Define max viewport size and max renderbuffer size in terms of
107 * max texture size (note: max tex RECT size = max tex 2D size).
108 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
110 c
->MaxViewportWidth
=
111 c
->MaxViewportHeight
=
112 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
114 c
->ViewportSubpixelBits
=
115 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
117 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
118 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
119 1, MAX_DRAW_BUFFERS
);
121 c
->MaxDualSourceDrawBuffers
=
122 _clamp(screen
->get_param(screen
,
123 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
124 0, MAX_DRAW_BUFFERS
);
127 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
129 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
132 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
134 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
136 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
137 * for non-aa sizes, but we can go down to 0.0 for aa points.
139 c
->MinPointSize
= 1.0f
;
140 c
->MinPointSizeAA
= 0.0f
;
142 c
->MaxTextureMaxAnisotropy
=
144 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
146 c
->MaxTextureLodBias
=
147 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
149 c
->QuadsFollowProvokingVertexConvention
=
150 screen
->get_param(screen
,
151 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
153 c
->MaxUniformBlockSize
=
154 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
155 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
156 if (c
->MaxUniformBlockSize
< 16384) {
160 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
161 struct gl_shader_compiler_options
*options
;
162 struct gl_program_constants
*pc
;
163 const nir_shader_compiler_options
*nir_options
= NULL
;
165 if (screen
->get_compiler_options
) {
166 nir_options
= (const nir_shader_compiler_options
*)
167 screen
->get_compiler_options(screen
, PIPE_SHADER_IR_NIR
, sh
);
170 const gl_shader_stage stage
= tgsi_processor_to_shader_stage(sh
);
171 pc
= &c
->Program
[stage
];
172 options
= &c
->ShaderCompilerOptions
[stage
];
173 c
->ShaderCompilerOptions
[stage
].NirOptions
= nir_options
;
175 if (sh
== PIPE_SHADER_COMPUTE
) {
176 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
179 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
180 if (!(supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)))
184 pc
->MaxTextureImageUnits
=
185 _min(screen
->get_shader_param(screen
, sh
,
186 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
187 MAX_TEXTURE_IMAGE_UNITS
);
189 pc
->MaxInstructions
=
190 pc
->MaxNativeInstructions
=
191 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
192 pc
->MaxAluInstructions
=
193 pc
->MaxNativeAluInstructions
=
194 screen
->get_shader_param(screen
, sh
,
195 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
196 pc
->MaxTexInstructions
=
197 pc
->MaxNativeTexInstructions
=
198 screen
->get_shader_param(screen
, sh
,
199 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
200 pc
->MaxTexIndirections
=
201 pc
->MaxNativeTexIndirections
=
202 screen
->get_shader_param(screen
, sh
,
203 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
205 pc
->MaxNativeAttribs
=
206 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
209 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
211 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
213 pc
->MaxNativeParameters
=
214 screen
->get_shader_param(screen
, sh
,
215 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / sizeof(float[4]);
216 pc
->MaxInputComponents
=
217 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
218 pc
->MaxOutputComponents
=
219 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
221 pc
->MaxUniformComponents
=
222 4 * MIN2(pc
->MaxNativeParameters
, MAX_UNIFORMS
);
224 pc
->MaxUniformBlocks
=
225 screen
->get_shader_param(screen
, sh
,
226 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
227 if (pc
->MaxUniformBlocks
)
228 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
229 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
231 pc
->MaxCombinedUniformComponents
= (pc
->MaxUniformComponents
+
232 c
->MaxUniformBlockSize
/ 4 *
233 pc
->MaxUniformBlocks
);
235 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
238 * for separate atomic counters get the actual hw limits
239 * per stage on atomic counters and buffers
242 pc
->MaxAtomicCounters
= temp
;
243 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
244 pc
->MaxShaderStorageBlocks
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
246 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
247 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
) / 2;
248 pc
->MaxShaderStorageBlocks
= pc
->MaxAtomicBuffers
;
250 pc
->MaxImageUniforms
= screen
->get_shader_param(
251 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
253 /* Gallium doesn't really care about local vs. env parameters so use the
256 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
257 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
259 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
260 pc
->LowInt
.RangeMin
= 31;
261 pc
->LowInt
.RangeMax
= 30;
262 pc
->LowInt
.Precision
= 0;
263 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
266 /* TODO: make these more fine-grained if anyone needs it */
267 options
->MaxIfDepth
=
268 screen
->get_shader_param(screen
, sh
,
269 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
270 options
->EmitNoLoops
=
271 !screen
->get_shader_param(screen
, sh
,
272 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
273 options
->EmitNoMainReturn
=
274 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
276 options
->EmitNoCont
=
277 !screen
->get_shader_param(screen
, sh
,
278 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
280 options
->EmitNoIndirectInput
=
281 !screen
->get_shader_param(screen
, sh
,
282 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
283 options
->EmitNoIndirectOutput
=
284 !screen
->get_shader_param(screen
, sh
,
285 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
286 options
->EmitNoIndirectTemp
=
287 !screen
->get_shader_param(screen
, sh
,
288 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
289 options
->EmitNoIndirectUniform
=
290 !screen
->get_shader_param(screen
, sh
,
291 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
293 if (pc
->MaxNativeInstructions
&&
294 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
298 if (options
->EmitNoLoops
)
299 options
->MaxUnrollIterations
=
300 MIN2(screen
->get_shader_param(screen
, sh
,
301 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
304 options
->MaxUnrollIterations
=
305 screen
->get_shader_param(screen
, sh
,
306 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
308 options
->LowerCombinedClipCullDistance
= true;
309 options
->LowerBufferInterfaceBlocks
= true;
312 c
->GLSLOptimizeConservatively
=
313 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
314 c
->LowerTessLevel
= true;
315 c
->LowerCsDerivedVariables
= true;
316 c
->PrimitiveRestartForPatches
=
317 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
319 c
->MaxCombinedTextureImageUnits
=
320 _min(c
->Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
321 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxTextureImageUnits
+
322 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxTextureImageUnits
+
323 c
->Program
[MESA_SHADER_GEOMETRY
].MaxTextureImageUnits
+
324 c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
+
325 c
->Program
[MESA_SHADER_COMPUTE
].MaxTextureImageUnits
,
326 MAX_COMBINED_TEXTURE_IMAGE_UNITS
);
328 /* This depends on program constants. */
329 c
->MaxTextureCoordUnits
330 = _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
331 MAX_TEXTURE_COORD_UNITS
);
334 _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
335 c
->MaxTextureCoordUnits
);
337 c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
=
338 MIN2(c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
, 16);
340 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
341 * of inputs. It's always 2 colors + N generic inputs. */
342 c
->MaxVarying
= screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
343 PIPE_SHADER_CAP_MAX_INPUTS
);
344 c
->MaxVarying
= MIN2(c
->MaxVarying
, MAX_VARYING
);
345 c
->MaxGeometryOutputVertices
=
346 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES
);
347 c
->MaxGeometryTotalOutputComponents
=
348 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS
);
349 c
->MaxTessPatchComponents
=
350 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS
),
353 c
->MinProgramTexelOffset
=
354 screen
->get_param(screen
, PIPE_CAP_MIN_TEXEL_OFFSET
);
355 c
->MaxProgramTexelOffset
=
356 screen
->get_param(screen
, PIPE_CAP_MAX_TEXEL_OFFSET
);
358 c
->MaxProgramTextureGatherComponents
=
359 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
);
360 c
->MinProgramTextureGatherOffset
=
361 screen
->get_param(screen
, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET
);
362 c
->MaxProgramTextureGatherOffset
=
363 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET
);
365 c
->MaxTransformFeedbackBuffers
=
366 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
);
367 c
->MaxTransformFeedbackBuffers
= MIN2(c
->MaxTransformFeedbackBuffers
,
368 MAX_FEEDBACK_BUFFERS
);
369 c
->MaxTransformFeedbackSeparateComponents
=
370 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS
);
371 c
->MaxTransformFeedbackInterleavedComponents
=
372 screen
->get_param(screen
,
373 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS
);
374 c
->MaxVertexStreams
=
375 MAX2(1, screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_STREAMS
));
377 /* The vertex stream must fit into pipe_stream_output_info::stream */
378 assert(c
->MaxVertexStreams
<= 4);
380 c
->MaxVertexAttribStride
381 = screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE
);
383 c
->StripTextureBorder
= GL_TRUE
;
385 c
->GLSLSkipStrictMaxUniformLimitCheck
=
386 screen
->get_param(screen
, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS
);
388 c
->UniformBufferOffsetAlignment
=
389 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
392 extensions
->ARB_uniform_buffer_object
= GL_TRUE
;
393 c
->MaxCombinedUniformBlocks
= c
->MaxUniformBufferBindings
=
394 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformBlocks
+
395 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformBlocks
+
396 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformBlocks
+
397 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformBlocks
+
398 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformBlocks
+
399 c
->Program
[MESA_SHADER_COMPUTE
].MaxUniformBlocks
;
400 assert(c
->MaxCombinedUniformBlocks
<= MAX_COMBINED_UNIFORM_BUFFERS
);
403 c
->GLSLFragCoordIsSysVal
=
404 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL
);
405 c
->GLSLFrontFacingIsSysVal
=
406 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
408 /* GL_ARB_get_program_binary
410 * The QT framework has a bug in their shader program cache, which is built
411 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
412 * we don't enable more than 1 binary format for compatibility profiles.
414 if (api
!= API_OPENGL_COMPAT
&&
415 screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
416 c
->NumProgramBinaryFormats
= 1;
418 c
->MaxAtomicBufferBindings
=
419 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
422 /* for separate atomic buffers - there atomic buffer size will be
424 c
->MaxAtomicBufferSize
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
425 /* on all HW with separate atomic (evergreen) the following
426 lines are true. not sure it's worth adding CAPs for this at this
428 c
->MaxCombinedAtomicCounters
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
;
429 c
->MaxCombinedAtomicBuffers
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
431 c
->MaxCombinedAtomicBuffers
=
432 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
433 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
434 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
435 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
436 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
437 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
440 if (c
->MaxCombinedAtomicBuffers
> 0) {
441 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
442 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
445 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
446 c
->ShaderStorageBufferOffsetAlignment
=
447 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
448 if (c
->ShaderStorageBufferOffsetAlignment
) {
449 /* for hw atomic counters leaves these at default for now */
451 c
->MaxCombinedShaderStorageBlocks
= c
->MaxShaderStorageBufferBindings
=
452 c
->MaxCombinedAtomicBuffers
;
453 c
->MaxCombinedShaderOutputResources
+=
454 c
->MaxCombinedShaderStorageBlocks
;
455 c
->MaxShaderStorageBlockSize
= 1 << 27;
456 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
459 c
->MaxCombinedImageUniforms
=
460 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
461 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
462 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
463 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
464 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
465 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
466 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
467 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
468 if (c
->MaxCombinedImageUniforms
) {
469 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
470 extensions
->ARB_shader_image_size
= GL_TRUE
;
473 /* ARB_framebuffer_no_attachments */
474 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
475 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
476 /* NOTE: we cheat here a little by assuming that
477 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
478 * number of layers as we need, although we technically
479 * could have more the generality is not really useful
482 c
->MaxFramebufferLayers
=
483 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
485 c
->MaxWindowRectangles
=
486 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
488 c
->SparseBufferPageSize
=
489 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
491 c
->AllowMappedBuffersDuringExecution
=
492 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
494 c
->UseSTD430AsDefaultPacking
=
495 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
497 c
->MaxSubpixelPrecisionBiasBits
=
498 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
500 c
->ConservativeRasterDilateRange
[0] =
501 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
502 c
->ConservativeRasterDilateRange
[1] =
503 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
504 c
->ConservativeRasterDilateGranularity
=
505 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
507 /* limit the max combined shader output resources to a driver limit */
508 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
509 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
510 c
->MaxCombinedShaderOutputResources
= temp
;
515 * Given a member \c x of struct gl_extensions, return offset of
518 #define o(x) offsetof(struct gl_extensions, x)
521 struct st_extension_cap_mapping
{
522 int extension_offset
;
526 struct st_extension_format_mapping
{
527 int extension_offset
[2];
528 enum pipe_format format
[32];
530 /* If TRUE, at least one format must be supported for the extensions to be
531 * advertised. If FALSE, all the formats must be supported. */
532 GLboolean need_at_least_one
;
536 * Enable extensions if certain pipe formats are supported by the driver.
537 * What extensions will be enabled and what formats must be supported is
538 * described by the array of st_extension_format_mapping.
540 * target and bind_flags are passed to is_format_supported.
543 init_format_extensions(struct pipe_screen
*screen
,
544 struct gl_extensions
*extensions
,
545 const struct st_extension_format_mapping
*mapping
,
546 unsigned num_mappings
,
547 enum pipe_texture_target target
,
550 GLboolean
*extension_table
= (GLboolean
*) extensions
;
553 int num_formats
= ARRAY_SIZE(mapping
->format
);
554 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
556 for (i
= 0; i
< num_mappings
; i
++) {
557 int num_supported
= 0;
559 /* Examine each format in the list. */
560 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
561 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
562 target
, 0, 0, bind_flags
)) {
567 if (!num_supported
||
568 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
572 /* Enable all extensions in the list. */
573 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
574 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
580 * Given a list of formats and bind flags, return the maximum number
581 * of samples supported by any of those formats.
584 get_max_samples_for_formats(struct pipe_screen
*screen
,
585 unsigned num_formats
,
586 const enum pipe_format
*formats
,
587 unsigned max_samples
,
592 for (i
= max_samples
; i
> 0; --i
) {
593 for (f
= 0; f
< num_formats
; f
++) {
594 if (screen
->is_format_supported(screen
, formats
[f
],
595 PIPE_TEXTURE_2D
, i
, i
, bind
)) {
604 get_max_samples_for_formats_advanced(struct pipe_screen
*screen
,
605 unsigned num_formats
,
606 const enum pipe_format
*formats
,
607 unsigned max_samples
,
608 unsigned num_storage_samples
,
613 for (i
= max_samples
; i
> 0; --i
) {
614 for (f
= 0; f
< num_formats
; f
++) {
615 if (screen
->is_format_supported(screen
, formats
[f
], PIPE_TEXTURE_2D
,
616 i
, num_storage_samples
, bind
)) {
625 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
626 * which GL extensions are supported.
627 * Quite a few extensions are always supported because they are standard
628 * features or can be built on top of other gallium features.
629 * Some fine tuning may still be needed.
631 void st_init_extensions(struct pipe_screen
*screen
,
632 struct gl_constants
*consts
,
633 struct gl_extensions
*extensions
,
634 struct st_config_options
*options
,
638 GLboolean
*extension_table
= (GLboolean
*) extensions
;
640 static const struct st_extension_cap_mapping cap_mapping
[] = {
641 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
642 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
643 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
644 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
645 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
646 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
647 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
648 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
649 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
650 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
651 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
652 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
653 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
654 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
655 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
656 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
657 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
658 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
659 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
660 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
661 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
662 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
663 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
664 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
665 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
666 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
667 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
668 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
669 { o(ARB_sample_locations
), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS
},
670 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
671 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
672 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
673 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
674 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
675 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
676 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
677 { o(ARB_shader_texture_lod
), PIPE_CAP_SM3
},
678 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
679 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
680 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
681 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
682 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
683 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
684 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
685 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
686 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
687 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
688 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
689 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
690 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
692 { o(KHR_blend_equation_advanced
), PIPE_CAP_TGSI_FS_FBFETCH
},
694 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
695 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
696 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
697 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
698 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
699 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
700 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
701 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
702 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
703 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
704 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
705 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
706 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
708 { o(AMD_framebuffer_multisample_advanced
), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS
},
709 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
710 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
711 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
712 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
713 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
714 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
715 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
716 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
717 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
718 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
719 /* GL_NV_point_sprite is not supported by gallium because we don't
720 * support the GL_POINT_SPRITE_R_MODE_NV option. */
722 { o(OES_standard_derivatives
), PIPE_CAP_SM3
},
723 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
724 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
727 /* Required: render target and sampler support */
728 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
729 { { o(ARB_texture_float
) },
730 { PIPE_FORMAT_R32G32B32A32_FLOAT
,
731 PIPE_FORMAT_R16G16B16A16_FLOAT
} },
733 { { o(OES_texture_float
) },
734 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
736 { { o(OES_texture_half_float
) },
737 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
739 { { o(ARB_texture_rgb10_a2ui
) },
740 { PIPE_FORMAT_R10G10B10A2_UINT
,
741 PIPE_FORMAT_B10G10R10A2_UINT
},
742 GL_TRUE
}, /* at least one format must be supported */
744 { { o(EXT_framebuffer_sRGB
) },
745 { PIPE_FORMAT_A8B8G8R8_SRGB
,
746 PIPE_FORMAT_B8G8R8A8_SRGB
,
747 PIPE_FORMAT_R8G8B8A8_SRGB
},
748 GL_TRUE
}, /* at least one format must be supported */
750 { { o(EXT_packed_float
) },
751 { PIPE_FORMAT_R11G11B10_FLOAT
} },
753 { { o(EXT_texture_integer
) },
754 { PIPE_FORMAT_R32G32B32A32_UINT
,
755 PIPE_FORMAT_R32G32B32A32_SINT
} },
757 { { o(ARB_texture_rg
) },
758 { PIPE_FORMAT_R8_UNORM
,
759 PIPE_FORMAT_R8G8_UNORM
} },
762 /* Required: depth stencil and sampler support */
763 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
764 { { o(ARB_depth_buffer_float
) },
765 { PIPE_FORMAT_Z32_FLOAT
,
766 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
769 /* Required: sampler support */
770 static const struct st_extension_format_mapping texture_mapping
[] = {
771 { { o(ARB_texture_compression_rgtc
) },
772 { PIPE_FORMAT_RGTC1_UNORM
,
773 PIPE_FORMAT_RGTC1_SNORM
,
774 PIPE_FORMAT_RGTC2_UNORM
,
775 PIPE_FORMAT_RGTC2_SNORM
} },
777 { { o(EXT_texture_compression_latc
) },
778 { PIPE_FORMAT_LATC1_UNORM
,
779 PIPE_FORMAT_LATC1_SNORM
,
780 PIPE_FORMAT_LATC2_UNORM
,
781 PIPE_FORMAT_LATC2_SNORM
} },
783 { { o(EXT_texture_compression_s3tc
),
784 o(ANGLE_texture_compression_dxt
) },
785 { PIPE_FORMAT_DXT1_RGB
,
786 PIPE_FORMAT_DXT1_RGBA
,
787 PIPE_FORMAT_DXT3_RGBA
,
788 PIPE_FORMAT_DXT5_RGBA
} },
790 { { o(ARB_texture_compression_bptc
) },
791 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
792 PIPE_FORMAT_BPTC_SRGBA
,
793 PIPE_FORMAT_BPTC_RGB_FLOAT
,
794 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
796 { { o(KHR_texture_compression_astc_ldr
) },
797 { PIPE_FORMAT_ASTC_4x4
,
798 PIPE_FORMAT_ASTC_5x4
,
799 PIPE_FORMAT_ASTC_5x5
,
800 PIPE_FORMAT_ASTC_6x5
,
801 PIPE_FORMAT_ASTC_6x6
,
802 PIPE_FORMAT_ASTC_8x5
,
803 PIPE_FORMAT_ASTC_8x6
,
804 PIPE_FORMAT_ASTC_8x8
,
805 PIPE_FORMAT_ASTC_10x5
,
806 PIPE_FORMAT_ASTC_10x6
,
807 PIPE_FORMAT_ASTC_10x8
,
808 PIPE_FORMAT_ASTC_10x10
,
809 PIPE_FORMAT_ASTC_12x10
,
810 PIPE_FORMAT_ASTC_12x12
,
811 PIPE_FORMAT_ASTC_4x4_SRGB
,
812 PIPE_FORMAT_ASTC_5x4_SRGB
,
813 PIPE_FORMAT_ASTC_5x5_SRGB
,
814 PIPE_FORMAT_ASTC_6x5_SRGB
,
815 PIPE_FORMAT_ASTC_6x6_SRGB
,
816 PIPE_FORMAT_ASTC_8x5_SRGB
,
817 PIPE_FORMAT_ASTC_8x6_SRGB
,
818 PIPE_FORMAT_ASTC_8x8_SRGB
,
819 PIPE_FORMAT_ASTC_10x5_SRGB
,
820 PIPE_FORMAT_ASTC_10x6_SRGB
,
821 PIPE_FORMAT_ASTC_10x8_SRGB
,
822 PIPE_FORMAT_ASTC_10x10_SRGB
,
823 PIPE_FORMAT_ASTC_12x10_SRGB
,
824 PIPE_FORMAT_ASTC_12x12_SRGB
} },
826 /* ASTC software fallback support. */
827 { { o(KHR_texture_compression_astc_ldr
) },
828 { PIPE_FORMAT_R8G8B8A8_UNORM
,
829 PIPE_FORMAT_R8G8B8A8_SRGB
} },
831 { { o(EXT_texture_shared_exponent
) },
832 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
834 { { o(EXT_texture_snorm
) },
835 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
837 { { o(EXT_texture_sRGB
),
838 o(EXT_texture_sRGB_decode
) },
839 { PIPE_FORMAT_A8B8G8R8_SRGB
,
840 PIPE_FORMAT_B8G8R8A8_SRGB
,
841 PIPE_FORMAT_A8R8G8B8_SRGB
,
842 PIPE_FORMAT_R8G8B8A8_SRGB
},
843 GL_TRUE
}, /* at least one format must be supported */
845 { { o(EXT_texture_type_2_10_10_10_REV
) },
846 { PIPE_FORMAT_R10G10B10A2_UNORM
,
847 PIPE_FORMAT_B10G10R10A2_UNORM
},
848 GL_TRUE
}, /* at least one format must be supported */
850 { { o(ATI_texture_compression_3dc
) },
851 { PIPE_FORMAT_LATC2_UNORM
} },
853 { { o(MESA_ycbcr_texture
) },
856 GL_TRUE
}, /* at least one format must be supported */
858 { { o(OES_compressed_ETC1_RGB8_texture
) },
859 { PIPE_FORMAT_ETC1_RGB8
,
860 PIPE_FORMAT_R8G8B8A8_UNORM
},
861 GL_TRUE
}, /* at least one format must be supported */
863 { { o(ARB_stencil_texturing
),
864 o(ARB_texture_stencil8
) },
865 { PIPE_FORMAT_X24S8_UINT
,
866 PIPE_FORMAT_S8X24_UINT
},
867 GL_TRUE
}, /* at least one format must be supported */
870 /* Required: vertex fetch support. */
871 static const struct st_extension_format_mapping vertex_mapping
[] = {
872 { { o(EXT_vertex_array_bgra
) },
873 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
874 { { o(ARB_vertex_type_2_10_10_10_rev
) },
875 { PIPE_FORMAT_R10G10B10A2_UNORM
,
876 PIPE_FORMAT_B10G10R10A2_UNORM
,
877 PIPE_FORMAT_R10G10B10A2_SNORM
,
878 PIPE_FORMAT_B10G10R10A2_SNORM
,
879 PIPE_FORMAT_R10G10B10A2_USCALED
,
880 PIPE_FORMAT_B10G10R10A2_USCALED
,
881 PIPE_FORMAT_R10G10B10A2_SSCALED
,
882 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
883 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
884 { PIPE_FORMAT_R11G11B10_FLOAT
} },
887 static const struct st_extension_format_mapping tbo_rgb32
[] = {
888 { {o(ARB_texture_buffer_object_rgb32
) },
889 { PIPE_FORMAT_R32G32B32_FLOAT
,
890 PIPE_FORMAT_R32G32B32_UINT
,
891 PIPE_FORMAT_R32G32B32_SINT
,
896 * Extensions that are supported by all Gallium drivers:
898 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
899 extensions
->ARB_depth_texture
= GL_TRUE
;
900 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
901 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
902 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
903 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
904 extensions
->ARB_fragment_program
= GL_TRUE
;
905 extensions
->ARB_fragment_program_shadow
= GL_TRUE
;
906 extensions
->ARB_fragment_shader
= GL_TRUE
;
907 extensions
->ARB_half_float_vertex
= GL_TRUE
;
908 extensions
->ARB_internalformat_query
= GL_TRUE
;
909 extensions
->ARB_internalformat_query2
= GL_TRUE
;
910 extensions
->ARB_map_buffer_range
= GL_TRUE
;
911 extensions
->ARB_shadow
= GL_TRUE
;
912 extensions
->ARB_sync
= GL_TRUE
;
913 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
914 extensions
->ARB_texture_cube_map
= GL_TRUE
;
915 extensions
->ARB_texture_env_combine
= GL_TRUE
;
916 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
917 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
918 extensions
->ARB_vertex_program
= GL_TRUE
;
919 extensions
->ARB_vertex_shader
= GL_TRUE
;
921 extensions
->EXT_blend_color
= GL_TRUE
;
922 extensions
->EXT_blend_func_separate
= GL_TRUE
;
923 extensions
->EXT_blend_minmax
= GL_TRUE
;
924 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
925 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
926 extensions
->EXT_point_parameters
= GL_TRUE
;
927 extensions
->EXT_provoking_vertex
= GL_TRUE
;
928 extensions
->EXT_stencil_two_side
= GL_TRUE
;
929 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
931 extensions
->ATI_fragment_shader
= GL_TRUE
;
932 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
934 extensions
->MESA_pack_invert
= GL_TRUE
;
936 extensions
->NV_fog_distance
= GL_TRUE
;
937 extensions
->NV_texture_env_combine4
= GL_TRUE
;
938 extensions
->NV_texture_rectangle
= GL_TRUE
;
940 extensions
->OES_EGL_image
= GL_TRUE
;
941 extensions
->OES_EGL_image_external
= GL_TRUE
;
942 extensions
->OES_draw_texture
= GL_TRUE
;
944 /* Expose the extensions which directly correspond to gallium caps. */
945 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
946 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
947 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
951 /* Expose the extensions which directly correspond to gallium formats. */
952 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
953 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
954 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
955 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
956 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
957 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
958 init_format_extensions(screen
, extensions
, texture_mapping
,
959 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
960 PIPE_BIND_SAMPLER_VIEW
);
961 init_format_extensions(screen
, extensions
, vertex_mapping
,
962 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
963 PIPE_BIND_VERTEX_BUFFER
);
965 /* Figure out GLSL support and set GLSLVersion to it. */
966 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
967 consts
->GLSLVersionCompat
=
968 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
970 const unsigned GLSLVersion
=
971 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
974 _mesa_override_glsl_version(consts
);
976 if (options
->force_glsl_version
> 0 &&
977 options
->force_glsl_version
<= GLSLVersion
) {
978 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
981 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
983 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
985 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
987 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
989 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
991 if (GLSLVersion
>= 400)
992 extensions
->ARB_gpu_shader5
= GL_TRUE
;
993 if (GLSLVersion
>= 410)
994 extensions
->ARB_shader_precision
= GL_TRUE
;
996 /* This extension needs full OpenGL 3.2, but we don't know if that's
997 * supported at this point. Only check the GLSL version. */
998 if (GLSLVersion
>= 150 &&
999 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
1000 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
1003 if (GLSLVersion
>= 140) {
1004 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
1005 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
1008 if (GLSLVersion
>= 130) {
1009 consts
->NativeIntegers
= GL_TRUE
;
1010 consts
->MaxClipPlanes
= 8;
1012 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
1013 consts
->VertexID_is_zero_based
= GL_TRUE
;
1016 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1017 extensions
->ARB_conservative_depth
= GL_TRUE
;
1018 extensions
->ARB_shading_language_packing
= GL_TRUE
;
1019 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
1020 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
1021 extensions
->ARB_texture_query_levels
= GL_TRUE
;
1023 if (!options
->disable_shader_bit_encoding
) {
1024 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
1027 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1028 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1029 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1031 /* Optional integer support for GLSL 1.2. */
1032 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1033 PIPE_SHADER_CAP_INTEGERS
) &&
1034 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1035 PIPE_SHADER_CAP_INTEGERS
)) {
1036 consts
->NativeIntegers
= GL_TRUE
;
1038 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1041 /* Integer textures make no sense before GLSL 1.30 */
1042 extensions
->EXT_texture_integer
= GL_FALSE
;
1045 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
1047 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1049 /* Below are the cases which cannot be moved into tables easily. */
1051 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1052 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1053 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1054 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1055 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1058 /* What this is really checking for is the ability to support multiple
1059 * invocations of a geometry shader. There is no separate cap for that, so
1060 * we check the GLSLVersion.
1062 if (GLSLVersion
>= 400 &&
1063 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1064 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1065 extensions
->OES_geometry_shader
= GL_TRUE
;
1068 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1069 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1071 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1072 extensions
->ARB_gpu_shader5
;
1074 /* Maximum sample count. */
1076 static const enum pipe_format color_formats
[] = {
1077 PIPE_FORMAT_R8G8B8A8_UNORM
,
1078 PIPE_FORMAT_B8G8R8A8_UNORM
,
1079 PIPE_FORMAT_A8R8G8B8_UNORM
,
1080 PIPE_FORMAT_A8B8G8R8_UNORM
,
1082 static const enum pipe_format depth_formats
[] = {
1083 PIPE_FORMAT_Z16_UNORM
,
1084 PIPE_FORMAT_Z24X8_UNORM
,
1085 PIPE_FORMAT_X8Z24_UNORM
,
1086 PIPE_FORMAT_Z32_UNORM
,
1087 PIPE_FORMAT_Z32_FLOAT
1089 static const enum pipe_format int_formats
[] = {
1090 PIPE_FORMAT_R8G8B8A8_SINT
1092 static const enum pipe_format void_formats
[] = {
1096 consts
->MaxSamples
=
1097 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1099 PIPE_BIND_RENDER_TARGET
);
1101 consts
->MaxImageSamples
=
1102 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1104 PIPE_BIND_SHADER_IMAGE
);
1106 consts
->MaxColorTextureSamples
=
1107 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1108 color_formats
, consts
->MaxSamples
,
1109 PIPE_BIND_SAMPLER_VIEW
);
1111 consts
->MaxDepthTextureSamples
=
1112 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1113 depth_formats
, consts
->MaxSamples
,
1114 PIPE_BIND_SAMPLER_VIEW
);
1116 consts
->MaxIntegerSamples
=
1117 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1118 int_formats
, consts
->MaxSamples
,
1119 PIPE_BIND_SAMPLER_VIEW
);
1121 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1122 consts
->MaxFramebufferSamples
=
1123 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1125 PIPE_BIND_RENDER_TARGET
);
1127 if (extensions
->AMD_framebuffer_multisample_advanced
) {
1128 /* AMD_framebuffer_multisample_advanced */
1129 /* This can be greater than storage samples. */
1130 consts
->MaxColorFramebufferSamples
=
1131 get_max_samples_for_formats_advanced(screen
,
1132 ARRAY_SIZE(color_formats
),
1135 PIPE_BIND_RENDER_TARGET
);
1137 /* If the driver supports N color samples, it means it supports
1138 * N samples and N storage samples. N samples >= N storage
1141 consts
->MaxColorFramebufferStorageSamples
= consts
->MaxSamples
;
1142 consts
->MaxDepthStencilFramebufferSamples
=
1143 consts
->MaxDepthTextureSamples
;
1145 assert(consts
->MaxColorFramebufferSamples
>=
1146 consts
->MaxDepthStencilFramebufferSamples
);
1147 assert(consts
->MaxDepthStencilFramebufferSamples
>=
1148 consts
->MaxColorFramebufferStorageSamples
);
1150 consts
->NumSupportedMultisampleModes
= 0;
1152 unsigned depth_samples_supported
= 0;
1154 for (unsigned samples
= 2;
1155 samples
<= consts
->MaxDepthStencilFramebufferSamples
;
1157 if (screen
->is_format_supported(screen
, PIPE_FORMAT_Z32_FLOAT
,
1158 PIPE_TEXTURE_2D
, samples
, samples
,
1159 PIPE_BIND_DEPTH_STENCIL
))
1160 depth_samples_supported
|= 1 << samples
;
1163 for (unsigned samples
= 2;
1164 samples
<= consts
->MaxColorFramebufferSamples
;
1166 for (unsigned depth_samples
= 2;
1167 depth_samples
<= samples
; depth_samples
++) {
1168 if (!(depth_samples_supported
& (1 << depth_samples
)))
1171 for (unsigned storage_samples
= 2;
1172 storage_samples
<= depth_samples
; storage_samples
++) {
1173 if (screen
->is_format_supported(screen
,
1174 PIPE_FORMAT_R8G8B8A8_UNORM
,
1178 PIPE_BIND_RENDER_TARGET
)) {
1179 unsigned i
= consts
->NumSupportedMultisampleModes
;
1181 assert(i
< ARRAY_SIZE(consts
->SupportedMultisampleModes
));
1182 consts
->SupportedMultisampleModes
[i
].NumColorSamples
=
1184 consts
->SupportedMultisampleModes
[i
].NumColorStorageSamples
=
1186 consts
->SupportedMultisampleModes
[i
].NumDepthStencilSamples
=
1188 consts
->NumSupportedMultisampleModes
++;
1196 if (consts
->MaxSamples
>= 2) {
1197 /* Real MSAA support */
1198 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1199 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1201 else if (consts
->MaxSamples
> 0 &&
1202 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1203 /* fake MSAA support */
1204 consts
->FakeSWMSAA
= GL_TRUE
;
1205 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1206 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1207 extensions
->ARB_texture_multisample
= GL_TRUE
;
1210 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1211 !options
->disable_blend_func_extended
)
1212 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1214 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1215 extensions
->ARB_timer_query
) {
1216 extensions
->EXT_timer_query
= GL_TRUE
;
1219 if (extensions
->ARB_transform_feedback2
&&
1220 extensions
->ARB_draw_instanced
) {
1221 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1223 if (options
->force_glsl_extensions_warn
)
1224 consts
->ForceGLSLExtensionsWarn
= 1;
1226 if (options
->disable_glsl_line_continuations
)
1227 consts
->DisableGLSLLineContinuations
= 1;
1229 if (options
->allow_glsl_extension_directive_midshader
)
1230 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1232 if (options
->allow_glsl_builtin_const_expression
)
1233 consts
->AllowGLSLBuiltinConstantExpression
= GL_TRUE
;
1235 if (options
->allow_glsl_relaxed_es
)
1236 consts
->AllowGLSLRelaxedES
= GL_TRUE
;
1238 consts
->MinMapBufferAlignment
=
1239 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1241 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1242 if (api
== API_OPENGL_COMPAT
&&
1243 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1244 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1246 if (extensions
->ARB_texture_buffer_object
) {
1247 consts
->MaxTextureBufferSize
=
1248 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1250 consts
->TextureBufferOffsetAlignment
=
1251 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1253 if (consts
->TextureBufferOffsetAlignment
)
1254 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1256 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1257 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1258 PIPE_BIND_SAMPLER_VIEW
);
1261 extensions
->OES_texture_buffer
=
1262 extensions
->ARB_texture_buffer_object
&&
1263 extensions
->ARB_texture_buffer_range
&&
1264 extensions
->ARB_texture_buffer_object_rgb32
&&
1265 extensions
->ARB_shader_image_load_store
;
1267 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1268 * If the number of available texture indirections is very limited, then we
1269 * prefer to disable varying packing rather than run the risk of varying
1270 * packing preventing a shader from running.
1272 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1273 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1274 /* We can't disable varying packing if transform feedback is available,
1275 * because transform feedback code assumes a packed varying layout.
1277 if (!extensions
->EXT_transform_feedback
)
1278 consts
->DisableVaryingPacking
= GL_TRUE
;
1281 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1282 if (consts
->MaxViewports
>= 16) {
1283 if (GLSLVersion
>= 400) {
1284 consts
->ViewportBounds
.Min
= -32768.0;
1285 consts
->ViewportBounds
.Max
= 32767.0;
1287 consts
->ViewportBounds
.Min
= -16384.0;
1288 consts
->ViewportBounds
.Max
= 16383.0;
1290 extensions
->ARB_viewport_array
= GL_TRUE
;
1291 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1292 if (extensions
->AMD_vertex_shader_layer
)
1293 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1296 if (extensions
->AMD_vertex_shader_layer
&&
1297 extensions
->AMD_vertex_shader_viewport_index
&&
1298 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1299 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1301 /* ARB_framebuffer_no_attachments */
1302 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1303 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1304 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1305 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1306 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1308 /* GL_ARB_ES3_compatibility.
1309 * Check requirements for GLSL ES 3.00.
1311 if (GLSLVersion
>= 130 &&
1312 extensions
->ARB_uniform_buffer_object
&&
1313 extensions
->ARB_shader_bit_encoding
&&
1314 extensions
->NV_primitive_restart
&&
1315 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1316 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1317 /* Requirements for ETC2 emulation. */
1318 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1319 PIPE_TEXTURE_2D
, 0, 0,
1320 PIPE_BIND_SAMPLER_VIEW
) &&
1321 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_SRGB
,
1322 PIPE_TEXTURE_2D
, 0, 0,
1323 PIPE_BIND_SAMPLER_VIEW
) &&
1324 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1325 PIPE_TEXTURE_2D
, 0, 0,
1326 PIPE_BIND_SAMPLER_VIEW
) &&
1327 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1328 PIPE_TEXTURE_2D
, 0, 0,
1329 PIPE_BIND_SAMPLER_VIEW
) &&
1330 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1331 PIPE_TEXTURE_2D
, 0, 0,
1332 PIPE_BIND_SAMPLER_VIEW
) &&
1333 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1334 PIPE_TEXTURE_2D
, 0, 0,
1335 PIPE_BIND_SAMPLER_VIEW
)) {
1336 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1339 #ifdef HAVE_ST_VDPAU
1340 if (screen
->get_video_param
&&
1341 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1342 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1343 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1344 extensions
->NV_vdpau_interop
= GL_TRUE
;
1348 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1349 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1350 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1353 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1354 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1355 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1357 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1358 int compute_supported_irs
=
1359 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1360 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1361 if (compute_supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)) {
1362 uint64_t grid_size
[3], block_size
[3];
1363 uint64_t max_local_size
, max_threads_per_block
;
1365 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1366 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1367 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1368 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1369 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1370 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1371 &max_threads_per_block
);
1372 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1373 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1376 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1377 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1379 for (i
= 0; i
< 3; i
++) {
1380 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1381 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1384 extensions
->ARB_compute_shader
=
1385 extensions
->ARB_shader_image_load_store
&&
1386 extensions
->ARB_shader_atomic_counters
;
1388 if (extensions
->ARB_compute_shader
) {
1389 uint64_t max_variable_threads_per_block
= 0;
1391 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1392 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1393 &max_variable_threads_per_block
);
1395 for (i
= 0; i
< 3; i
++) {
1396 /* Clamp the values to avoid having a local work group size
1397 * greater than the maximum number of invocations.
1399 consts
->MaxComputeVariableGroupSize
[i
] =
1400 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1401 max_variable_threads_per_block
);
1403 consts
->MaxComputeVariableGroupInvocations
=
1404 max_variable_threads_per_block
;
1406 extensions
->ARB_compute_variable_group_size
=
1407 max_variable_threads_per_block
> 0;
1412 if (extensions
->EXT_texture_filter_anisotropic
&&
1413 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1414 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1416 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1418 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1419 * there's no clean way of telling whether we would support ES 3.1 from
1420 * here, so copy the condition from compute_version_es2 here. A lot of
1421 * these are redunant, but simpler to just have a (near-)exact copy here.
1423 extensions
->ARB_ES3_1_compatibility
=
1424 extensions
->ARB_ES3_compatibility
&&
1425 extensions
->ARB_arrays_of_arrays
&&
1426 extensions
->ARB_compute_shader
&&
1427 extensions
->ARB_draw_indirect
&&
1428 extensions
->ARB_explicit_uniform_location
&&
1429 extensions
->ARB_framebuffer_no_attachments
&&
1430 extensions
->ARB_shader_atomic_counters
&&
1431 extensions
->ARB_shader_image_load_store
&&
1432 extensions
->ARB_shader_image_size
&&
1433 extensions
->ARB_shader_storage_buffer_object
&&
1434 extensions
->ARB_shading_language_packing
&&
1435 extensions
->ARB_stencil_texturing
&&
1436 extensions
->ARB_texture_multisample
&&
1437 extensions
->ARB_gpu_shader5
&&
1438 extensions
->EXT_shader_integer_mix
;
1440 extensions
->OES_texture_cube_map_array
=
1441 extensions
->ARB_ES3_1_compatibility
&&
1442 extensions
->OES_geometry_shader
&&
1443 extensions
->ARB_texture_cube_map_array
;
1445 extensions
->OES_viewport_array
=
1446 extensions
->ARB_ES3_1_compatibility
&&
1447 extensions
->OES_geometry_shader
&&
1448 extensions
->ARB_viewport_array
;
1450 extensions
->OES_primitive_bounding_box
= extensions
->ARB_ES3_1_compatibility
;
1451 consts
->NoPrimitiveBoundingBoxOutput
= true;
1453 extensions
->ANDROID_extension_pack_es31a
=
1454 extensions
->KHR_texture_compression_astc_ldr
&&
1455 extensions
->KHR_blend_equation_advanced
&&
1456 extensions
->OES_sample_variables
&&
1457 extensions
->ARB_shader_image_load_store
&&
1458 extensions
->ARB_texture_stencil8
&&
1459 extensions
->ARB_texture_multisample
&&
1460 extensions
->OES_copy_image
&&
1461 extensions
->ARB_draw_buffers_blend
&&
1462 extensions
->OES_geometry_shader
&&
1463 extensions
->ARB_gpu_shader5
&&
1464 extensions
->OES_primitive_bounding_box
&&
1465 extensions
->ARB_tessellation_shader
&&
1466 extensions
->ARB_texture_border_clamp
&&
1467 extensions
->OES_texture_buffer
&&
1468 extensions
->OES_texture_cube_map_array
&&
1469 extensions
->EXT_texture_sRGB_decode
;
1471 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1472 * before overall versions are selected. Also it's actually a subset of ES
1473 * 3.2, since it doesn't require ASTC or advanced blending.
1475 extensions
->ARB_ES3_2_compatibility
=
1476 extensions
->ARB_ES3_1_compatibility
&&
1477 extensions
->KHR_robustness
&&
1478 extensions
->ARB_copy_image
&&
1479 extensions
->ARB_draw_buffers_blend
&&
1480 extensions
->ARB_draw_elements_base_vertex
&&
1481 extensions
->OES_geometry_shader
&&
1482 extensions
->ARB_gpu_shader5
&&
1483 extensions
->ARB_sample_shading
&&
1484 extensions
->ARB_tessellation_shader
&&
1485 extensions
->ARB_texture_border_clamp
&&
1486 extensions
->OES_texture_buffer
&&
1487 extensions
->ARB_texture_cube_map_array
&&
1488 extensions
->ARB_texture_stencil8
&&
1489 extensions
->ARB_texture_multisample
;
1491 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1492 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1493 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1495 bool pre_snap_triangles
, pre_snap_points_lines
;
1497 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1499 pre_snap_triangles
=
1500 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1501 pre_snap_points_lines
=
1502 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1504 extensions
->NV_conservative_raster
=
1505 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1507 if (extensions
->NV_conservative_raster
) {
1508 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1509 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1510 extensions
->NV_conservative_raster_pre_snap
=
1511 pre_snap_triangles
&& pre_snap_points_lines
;