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"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/spirv_extensions.h"
35 #include "main/version.h"
37 #include "pipe/p_context.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "tgsi/tgsi_from_mesa.h"
41 #include "util/u_math.h"
42 #include "util/u_memory.h"
44 #include "st_context.h"
46 #include "st_extensions.h"
47 #include "st_format.h"
51 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
52 * avoid evaluating arguments (which are often function calls) more than once.
55 static unsigned _min(unsigned a
, unsigned b
)
57 return (a
< b
) ? a
: b
;
60 static float _maxf(float a
, float b
)
62 return (a
> b
) ? a
: b
;
65 static int _clamp(int a
, int min
, int max
)
77 * Query driver to get implementation limits.
78 * Note that we have to limit/clamp against Mesa's internal limits too.
80 void st_init_limits(struct pipe_screen
*screen
,
81 struct gl_constants
*c
, struct gl_extensions
*extensions
)
88 c
->MaxTextureSize
= screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_SIZE
);
89 c
->MaxTextureSize
= MIN2(c
->MaxTextureSize
, 1 << (MAX_TEXTURE_LEVELS
- 1));
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
);
99 c
->MaxTextureRectSize
= _min(c
->MaxTextureSize
, MAX_TEXTURE_RECT_SIZE
);
101 c
->MaxArrayTextureLayers
102 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
104 /* Define max viewport size and max renderbuffer size in terms of
105 * max texture size (note: max tex RECT size = max tex 2D size).
106 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
108 c
->MaxViewportWidth
=
109 c
->MaxViewportHeight
=
110 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
113 screen
->get_param(screen
, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS
);
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 c
->MinPointSize
= 1.0f
;
137 c
->MinPointSizeAA
= 1.0f
;
139 c
->MaxTextureMaxAnisotropy
=
141 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
143 c
->MaxTextureLodBias
=
144 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
146 c
->QuadsFollowProvokingVertexConvention
=
147 screen
->get_param(screen
,
148 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
150 c
->MaxUniformBlockSize
=
151 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
152 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
153 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
154 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
156 c
->MaxUniformBlockSize
= MIN2(c
->MaxUniformBlockSize
, INT_MAX
- 127);
158 if (c
->MaxUniformBlockSize
< 16384) {
162 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
163 struct gl_shader_compiler_options
*options
;
164 struct gl_program_constants
*pc
;
165 const nir_shader_compiler_options
*nir_options
= NULL
;
167 bool prefer_nir
= PIPE_SHADER_IR_NIR
==
168 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_PREFERRED_IR
);
170 if (screen
->get_compiler_options
&& prefer_nir
) {
171 nir_options
= (const nir_shader_compiler_options
*)
172 screen
->get_compiler_options(screen
, PIPE_SHADER_IR_NIR
, sh
);
175 const gl_shader_stage stage
= tgsi_processor_to_shader_stage(sh
);
176 pc
= &c
->Program
[stage
];
177 options
= &c
->ShaderCompilerOptions
[stage
];
178 c
->ShaderCompilerOptions
[stage
].NirOptions
= nir_options
;
180 if (sh
== PIPE_SHADER_COMPUTE
) {
181 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
184 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
185 if (!(supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
186 (1 << PIPE_SHADER_IR_NIR
))))
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
,
225 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
226 * This gives us a limit of 4096 values - but we may need to generate
227 * internal values in addition to what the source program uses. So, we
228 * drop the limit one step lower, to 2048, to be safe.
231 pc
->MaxNativeParameters
= MIN2(pc
->MaxUniformComponents
/ 4, 2048);
232 pc
->MaxInputComponents
=
233 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
234 pc
->MaxOutputComponents
=
235 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
238 pc
->MaxUniformBlocks
=
239 screen
->get_shader_param(screen
, sh
,
240 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
241 if (pc
->MaxUniformBlocks
)
242 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
243 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
245 pc
->MaxCombinedUniformComponents
=
246 pc
->MaxUniformComponents
+
247 (uint64_t)c
->MaxUniformBlockSize
/ 4 * pc
->MaxUniformBlocks
;
249 pc
->MaxShaderStorageBlocks
=
250 screen
->get_shader_param(screen
, sh
,
251 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
253 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
256 * for separate atomic counters get the actual hw limits
257 * per stage on atomic counters and buffers
259 pc
->MaxAtomicCounters
= temp
;
260 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
261 } else if (pc
->MaxShaderStorageBlocks
) {
262 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
264 * without separate atomic counters, reserve half of the available
265 * SSBOs for atomic buffers, and the other half for normal SSBOs.
267 pc
->MaxAtomicBuffers
= pc
->MaxShaderStorageBlocks
/ 2;
268 pc
->MaxShaderStorageBlocks
-= pc
->MaxAtomicBuffers
;
270 pc
->MaxImageUniforms
= screen
->get_shader_param(
271 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
273 /* Gallium doesn't really care about local vs. env parameters so use the
276 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
277 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
279 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
280 pc
->LowInt
.RangeMin
= 31;
281 pc
->LowInt
.RangeMax
= 30;
282 pc
->LowInt
.Precision
= 0;
283 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
286 /* TODO: make these more fine-grained if anyone needs it */
287 options
->MaxIfDepth
=
288 screen
->get_shader_param(screen
, sh
,
289 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
290 options
->EmitNoLoops
=
291 !screen
->get_shader_param(screen
, sh
,
292 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
293 options
->EmitNoMainReturn
=
294 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
296 options
->EmitNoCont
=
297 !screen
->get_shader_param(screen
, sh
,
298 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
300 options
->EmitNoIndirectInput
=
301 !screen
->get_shader_param(screen
, sh
,
302 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
303 options
->EmitNoIndirectOutput
=
304 !screen
->get_shader_param(screen
, sh
,
305 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
306 options
->EmitNoIndirectTemp
=
307 !screen
->get_shader_param(screen
, sh
,
308 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
309 options
->EmitNoIndirectUniform
=
310 !screen
->get_shader_param(screen
, sh
,
311 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
313 if (pc
->MaxNativeInstructions
&&
314 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
318 if (options
->EmitNoLoops
)
319 options
->MaxUnrollIterations
=
320 MIN2(screen
->get_shader_param(screen
, sh
,
321 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
324 options
->MaxUnrollIterations
=
325 screen
->get_shader_param(screen
, sh
,
326 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
328 if (!screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
))
329 options
->LowerCombinedClipCullDistance
= true;
331 /* NIR can do the lowering on our behalf and we'll get better results
332 * because it can actually optimize SSBO access.
334 options
->LowerBufferInterfaceBlocks
= !prefer_nir
;
336 if (sh
== MESA_SHADER_VERTEX
) {
337 if (screen
->get_param(screen
, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED
))
338 options
->LowerBuiltinVariablesXfb
|= VARYING_BIT_POS
;
339 if (screen
->get_param(screen
, PIPE_CAP_PSIZ_CLAMPED
))
340 options
->LowerBuiltinVariablesXfb
|= VARYING_BIT_PSIZ
;
343 options
->LowerPrecisionFloat16
=
344 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_FP16
);
345 options
->LowerPrecisionDerivatives
=
346 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_FP16_DERIVATIVES
);
347 options
->LowerPrecisionInt16
=
348 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INT16
);
351 c
->MaxUserAssignableUniformLocations
=
352 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
+
353 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformComponents
+
354 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformComponents
+
355 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformComponents
+
356 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
;
358 c
->GLSLOptimizeConservatively
=
359 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
360 c
->GLSLLowerConstArrays
=
361 screen
->get_param(screen
, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF
);
362 c
->GLSLTessLevelsAsInputs
=
363 screen
->get_param(screen
, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS
);
365 !screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
);
366 c
->LowerCsDerivedVariables
=
367 !screen
->get_param(screen
, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED
);
368 c
->PrimitiveRestartForPatches
=
369 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
371 c
->MaxCombinedTextureImageUnits
=
372 _min(c
->Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
373 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxTextureImageUnits
+
374 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxTextureImageUnits
+
375 c
->Program
[MESA_SHADER_GEOMETRY
].MaxTextureImageUnits
+
376 c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
+
377 c
->Program
[MESA_SHADER_COMPUTE
].MaxTextureImageUnits
,
378 MAX_COMBINED_TEXTURE_IMAGE_UNITS
);
380 /* This depends on program constants. */
381 c
->MaxTextureCoordUnits
382 = _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
383 MAX_TEXTURE_COORD_UNITS
);
386 _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
387 c
->MaxTextureCoordUnits
);
389 c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
=
390 MIN2(c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
, 16);
392 c
->MaxVarying
= screen
->get_param(screen
, PIPE_CAP_MAX_VARYINGS
);
393 c
->MaxVarying
= MIN2(c
->MaxVarying
, MAX_VARYING
);
394 c
->MaxGeometryOutputVertices
=
395 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES
);
396 c
->MaxGeometryTotalOutputComponents
=
397 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS
);
398 c
->MaxGeometryShaderInvocations
=
399 screen
->get_param(screen
, PIPE_CAP_MAX_GS_INVOCATIONS
);
400 c
->MaxTessPatchComponents
=
401 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS
),
404 c
->MinProgramTexelOffset
=
405 screen
->get_param(screen
, PIPE_CAP_MIN_TEXEL_OFFSET
);
406 c
->MaxProgramTexelOffset
=
407 screen
->get_param(screen
, PIPE_CAP_MAX_TEXEL_OFFSET
);
409 c
->MaxProgramTextureGatherComponents
=
410 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
);
411 c
->MinProgramTextureGatherOffset
=
412 screen
->get_param(screen
, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET
);
413 c
->MaxProgramTextureGatherOffset
=
414 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET
);
416 c
->MaxTransformFeedbackBuffers
=
417 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
);
418 c
->MaxTransformFeedbackBuffers
= MIN2(c
->MaxTransformFeedbackBuffers
,
419 MAX_FEEDBACK_BUFFERS
);
420 c
->MaxTransformFeedbackSeparateComponents
=
421 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS
);
422 c
->MaxTransformFeedbackInterleavedComponents
=
423 screen
->get_param(screen
,
424 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS
);
425 c
->MaxVertexStreams
=
426 MAX2(1, screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_STREAMS
));
428 /* The vertex stream must fit into pipe_stream_output_info::stream */
429 assert(c
->MaxVertexStreams
<= 4);
431 c
->MaxVertexAttribStride
432 = screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE
);
434 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
437 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET
);
438 c
->MaxVertexAttribRelativeOffset
= MIN2(0xffff, temp
);
440 c
->StripTextureBorder
= GL_TRUE
;
442 c
->GLSLSkipStrictMaxUniformLimitCheck
=
443 screen
->get_param(screen
, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS
);
445 c
->UniformBufferOffsetAlignment
=
446 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
449 extensions
->ARB_uniform_buffer_object
= GL_TRUE
;
450 c
->MaxCombinedUniformBlocks
= c
->MaxUniformBufferBindings
=
451 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformBlocks
+
452 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformBlocks
+
453 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformBlocks
+
454 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformBlocks
+
455 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformBlocks
+
456 c
->Program
[MESA_SHADER_COMPUTE
].MaxUniformBlocks
;
457 assert(c
->MaxCombinedUniformBlocks
<= MAX_COMBINED_UNIFORM_BUFFERS
);
460 c
->GLSLFragCoordIsSysVal
=
461 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL
);
462 c
->GLSLPointCoordIsSysVal
=
463 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL
);
464 c
->GLSLFrontFacingIsSysVal
=
465 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
467 /* GL_ARB_get_program_binary */
468 if (screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
469 c
->NumProgramBinaryFormats
= 1;
471 c
->MaxAtomicBufferBindings
=
472 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
473 c
->MaxAtomicBufferSize
=
474 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
476 c
->MaxCombinedAtomicBuffers
=
477 MIN2(screen
->get_param(screen
,
478 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS
),
479 MAX_COMBINED_ATOMIC_BUFFERS
);
480 if (!c
->MaxCombinedAtomicBuffers
) {
481 c
->MaxCombinedAtomicBuffers
=
482 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
483 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
484 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
485 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
486 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
487 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
490 c
->MaxCombinedAtomicCounters
=
491 screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS
);
492 if (!c
->MaxCombinedAtomicCounters
)
493 c
->MaxCombinedAtomicCounters
= MAX_ATOMIC_COUNTERS
;
495 if (c
->MaxCombinedAtomicBuffers
> 0) {
496 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
497 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
500 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
501 c
->ShaderStorageBufferOffsetAlignment
=
502 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
503 if (c
->ShaderStorageBufferOffsetAlignment
) {
504 c
->MaxCombinedShaderStorageBlocks
=
505 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS
),
506 MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
507 if (!c
->MaxCombinedShaderStorageBlocks
) {
508 c
->MaxCombinedShaderStorageBlocks
=
509 c
->Program
[MESA_SHADER_VERTEX
].MaxShaderStorageBlocks
+
510 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxShaderStorageBlocks
+
511 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxShaderStorageBlocks
+
512 c
->Program
[MESA_SHADER_GEOMETRY
].MaxShaderStorageBlocks
+
513 c
->Program
[MESA_SHADER_FRAGMENT
].MaxShaderStorageBlocks
;
514 assert(c
->MaxCombinedShaderStorageBlocks
< MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
516 c
->MaxShaderStorageBufferBindings
= c
->MaxCombinedShaderStorageBlocks
;
518 c
->MaxCombinedShaderOutputResources
+=
519 c
->MaxCombinedShaderStorageBlocks
;
520 c
->MaxShaderStorageBlockSize
=
521 screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_BUFFER_SIZE
);
522 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
525 c
->MaxCombinedImageUniforms
=
526 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
527 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
528 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
529 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
530 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
531 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
532 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
533 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
534 if (c
->MaxCombinedImageUniforms
) {
535 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
536 extensions
->ARB_shader_image_size
= GL_TRUE
;
539 /* ARB_framebuffer_no_attachments */
540 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
541 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
542 /* NOTE: we cheat here a little by assuming that
543 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
544 * number of layers as we need, although we technically
545 * could have more the generality is not really useful
548 c
->MaxFramebufferLayers
=
549 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
551 c
->MaxWindowRectangles
=
552 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
554 c
->SparseBufferPageSize
=
555 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
557 c
->AllowMappedBuffersDuringExecution
=
558 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
560 c
->BufferCreateMapUnsynchronizedThreadSafe
=
561 screen
->get_param(screen
, PIPE_CAP_MAP_UNSYNCHRONIZED_THREAD_SAFE
);
563 c
->UseSTD430AsDefaultPacking
=
564 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
566 c
->MaxSubpixelPrecisionBiasBits
=
567 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
569 c
->ConservativeRasterDilateRange
[0] =
570 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
571 c
->ConservativeRasterDilateRange
[1] =
572 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
573 c
->ConservativeRasterDilateGranularity
=
574 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
576 /* limit the max combined shader output resources to a driver limit */
577 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
578 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
579 c
->MaxCombinedShaderOutputResources
= temp
;
581 c
->VertexBufferOffsetIsInt32
=
582 screen
->get_param(screen
, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET
);
584 c
->MultiDrawWithUserIndices
=
585 screen
->get_param(screen
, PIPE_CAP_DRAW_INFO_START_WITH_USER_INDICES
);
587 c
->AllowDynamicVAOFastPath
= true;
589 c
->glBeginEndBufferSize
=
590 screen
->get_param(screen
, PIPE_CAP_GL_BEGIN_END_BUFFER_SIZE
);
595 * Given a member \c x of struct gl_extensions, return offset of
598 #define o(x) offsetof(struct gl_extensions, x)
601 struct st_extension_cap_mapping
{
602 int extension_offset
;
606 struct st_extension_format_mapping
{
607 int extension_offset
[2];
608 enum pipe_format format
[32];
610 /* If TRUE, at least one format must be supported for the extensions to be
611 * advertised. If FALSE, all the formats must be supported. */
612 GLboolean need_at_least_one
;
616 * Enable extensions if certain pipe formats are supported by the driver.
617 * What extensions will be enabled and what formats must be supported is
618 * described by the array of st_extension_format_mapping.
620 * target and bind_flags are passed to is_format_supported.
623 init_format_extensions(struct pipe_screen
*screen
,
624 struct gl_extensions
*extensions
,
625 const struct st_extension_format_mapping
*mapping
,
626 unsigned num_mappings
,
627 enum pipe_texture_target target
,
630 GLboolean
*extension_table
= (GLboolean
*) extensions
;
633 int num_formats
= ARRAY_SIZE(mapping
->format
);
634 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
636 for (i
= 0; i
< num_mappings
; i
++) {
637 int num_supported
= 0;
639 /* Examine each format in the list. */
640 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
641 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
642 target
, 0, 0, bind_flags
)) {
647 if (!num_supported
||
648 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
652 /* Enable all extensions in the list. */
653 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
654 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
660 * Given a list of formats and bind flags, return the maximum number
661 * of samples supported by any of those formats.
664 get_max_samples_for_formats(struct pipe_screen
*screen
,
665 unsigned num_formats
,
666 const enum pipe_format
*formats
,
667 unsigned max_samples
,
672 for (i
= max_samples
; i
> 0; --i
) {
673 for (f
= 0; f
< num_formats
; f
++) {
674 if (screen
->is_format_supported(screen
, formats
[f
],
675 PIPE_TEXTURE_2D
, i
, i
, bind
)) {
684 get_max_samples_for_formats_advanced(struct pipe_screen
*screen
,
685 unsigned num_formats
,
686 const enum pipe_format
*formats
,
687 unsigned max_samples
,
688 unsigned num_storage_samples
,
693 for (i
= max_samples
; i
> 0; --i
) {
694 for (f
= 0; f
< num_formats
; f
++) {
695 if (screen
->is_format_supported(screen
, formats
[f
], PIPE_TEXTURE_2D
,
696 i
, num_storage_samples
, bind
)) {
705 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
706 * which GL extensions are supported.
707 * Quite a few extensions are always supported because they are standard
708 * features or can be built on top of other gallium features.
709 * Some fine tuning may still be needed.
711 void st_init_extensions(struct pipe_screen
*screen
,
712 struct gl_constants
*consts
,
713 struct gl_extensions
*extensions
,
714 struct st_config_options
*options
,
718 GLboolean
*extension_table
= (GLboolean
*) extensions
;
720 static const struct st_extension_cap_mapping cap_mapping
[] = {
721 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
722 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
723 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
724 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
725 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
726 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
727 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
728 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
729 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
730 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
731 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
732 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
733 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
734 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
735 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
736 { o(ARB_fragment_program_shadow
), PIPE_CAP_TEXTURE_SHADOW_MAP
},
737 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
738 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
739 { o(ARB_gl_spirv
), PIPE_CAP_GL_SPIRV
},
740 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
741 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
742 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
743 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
744 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
745 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE
},
746 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
747 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
748 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
749 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
750 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
751 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
752 { o(ARB_sample_locations
), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS
},
753 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
754 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
755 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
756 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
757 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
758 { o(EXT_shader_image_load_formatted
), PIPE_CAP_IMAGE_LOAD_FORMATTED
},
759 { o(EXT_shader_image_load_store
), PIPE_CAP_TGSI_ATOMINC_WRAP
},
760 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
761 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
762 { o(ARB_shader_texture_lod
), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD
},
763 { o(ARB_shadow
), PIPE_CAP_TEXTURE_SHADOW_MAP
},
764 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
765 { o(ARB_spirv_extensions
), PIPE_CAP_GL_SPIRV
},
766 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
767 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
768 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
769 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE
},
770 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
771 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
772 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
773 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
774 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
775 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
776 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
777 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
778 { o(ARB_fragment_shader_interlock
), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK
},
780 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
781 { o(EXT_demote_to_helper_invocation
), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION
},
782 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
783 { o(EXT_disjoint_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
784 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
785 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
786 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
787 { o(EXT_multisampled_render_to_texture
), PIPE_CAP_SURFACE_SAMPLE_COUNT
},
788 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
789 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
790 { o(EXT_shader_samples_identical
), PIPE_CAP_SHADER_SAMPLES_IDENTICAL
},
791 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
792 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
793 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
794 { o(EXT_texture_shadow_lod
), PIPE_CAP_TEXTURE_SHADOW_LOD
},
795 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
796 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
797 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
799 { o(AMD_depth_clamp_separate
), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE
},
800 { o(AMD_framebuffer_multisample_advanced
), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS
},
801 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
802 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
803 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
804 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
805 { o(INTEL_conservative_rasterization
), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE
},
806 { o(INTEL_shader_atomic_float_minmax
), PIPE_CAP_ATOMIC_FLOAT_MINMAX
},
807 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
808 { o(NV_alpha_to_coverage_dither_control
), PIPE_CAP_ALPHA_TO_COVERAGE_DITHER_CONTROL
},
809 { o(NV_compute_shader_derivatives
), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES
},
810 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
811 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
812 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
813 { o(NV_shader_atomic_float
), PIPE_CAP_TGSI_ATOMFADD
},
814 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
815 { o(NV_viewport_array2
), PIPE_CAP_VIEWPORT_MASK
},
816 { o(NV_viewport_swizzle
), PIPE_CAP_VIEWPORT_SWIZZLE
},
817 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
818 /* GL_NV_point_sprite is not supported by gallium because we don't
819 * support the GL_POINT_SPRITE_R_MODE_NV option. */
821 { o(OES_standard_derivatives
), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES
},
822 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
823 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
824 { o(OES_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
825 { o(INTEL_blackhole_render
), PIPE_CAP_FRONTEND_NOOP
, },
828 /* Required: render target and sampler support */
829 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
830 { { o(OES_texture_float
) },
831 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
833 { { o(OES_texture_half_float
) },
834 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
836 { { o(ARB_texture_rgb10_a2ui
) },
837 { PIPE_FORMAT_R10G10B10A2_UINT
,
838 PIPE_FORMAT_B10G10R10A2_UINT
},
839 GL_TRUE
}, /* at least one format must be supported */
842 { PIPE_FORMAT_A8B8G8R8_SRGB
,
843 PIPE_FORMAT_B8G8R8A8_SRGB
,
844 PIPE_FORMAT_R8G8B8A8_SRGB
},
845 GL_TRUE
}, /* at least one format must be supported */
847 { { o(EXT_packed_float
) },
848 { PIPE_FORMAT_R11G11B10_FLOAT
} },
850 { { o(EXT_texture_integer
) },
851 { PIPE_FORMAT_R32G32B32A32_UINT
,
852 PIPE_FORMAT_R32G32B32A32_SINT
} },
854 { { o(ARB_texture_rg
) },
855 { PIPE_FORMAT_R8_UNORM
,
856 PIPE_FORMAT_R8G8_UNORM
} },
858 { { o(EXT_texture_norm16
) },
859 { PIPE_FORMAT_R16_UNORM
,
860 PIPE_FORMAT_R16G16_UNORM
,
861 PIPE_FORMAT_R16G16B16A16_UNORM
} },
863 { { o(EXT_render_snorm
) },
864 { PIPE_FORMAT_R8_SNORM
,
865 PIPE_FORMAT_R8G8_SNORM
,
866 PIPE_FORMAT_R8G8B8A8_SNORM
,
867 PIPE_FORMAT_R16_SNORM
,
868 PIPE_FORMAT_R16G16_SNORM
,
869 PIPE_FORMAT_R16G16B16A16_SNORM
} },
872 /* Required: render target, sampler, and blending */
873 static const struct st_extension_format_mapping rt_blendable
[] = {
874 { { o(EXT_float_blend
) },
875 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
878 /* Required: depth stencil and sampler support */
879 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
880 { { o(ARB_depth_buffer_float
) },
881 { PIPE_FORMAT_Z32_FLOAT
,
882 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
885 /* Required: sampler support */
886 static const struct st_extension_format_mapping texture_mapping
[] = {
887 { { o(ARB_texture_compression_rgtc
) },
888 { PIPE_FORMAT_RGTC1_UNORM
,
889 PIPE_FORMAT_RGTC1_SNORM
,
890 PIPE_FORMAT_RGTC2_UNORM
,
891 PIPE_FORMAT_RGTC2_SNORM
} },
893 { { o(EXT_texture_compression_latc
) },
894 { PIPE_FORMAT_LATC1_UNORM
,
895 PIPE_FORMAT_LATC1_SNORM
,
896 PIPE_FORMAT_LATC2_UNORM
,
897 PIPE_FORMAT_LATC2_SNORM
} },
899 { { o(EXT_texture_compression_s3tc
),
900 o(ANGLE_texture_compression_dxt
) },
901 { PIPE_FORMAT_DXT1_RGB
,
902 PIPE_FORMAT_DXT1_RGBA
,
903 PIPE_FORMAT_DXT3_RGBA
,
904 PIPE_FORMAT_DXT5_RGBA
} },
906 { { o(EXT_texture_compression_s3tc_srgb
) },
907 { PIPE_FORMAT_DXT1_SRGB
,
908 PIPE_FORMAT_DXT1_SRGBA
,
909 PIPE_FORMAT_DXT3_SRGBA
,
910 PIPE_FORMAT_DXT5_SRGBA
} },
912 { { o(ARB_texture_compression_bptc
) },
913 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
914 PIPE_FORMAT_BPTC_SRGBA
,
915 PIPE_FORMAT_BPTC_RGB_FLOAT
,
916 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
918 { { o(TDFX_texture_compression_FXT1
) },
919 { PIPE_FORMAT_FXT1_RGB
,
920 PIPE_FORMAT_FXT1_RGBA
} },
922 { { o(KHR_texture_compression_astc_ldr
),
923 o(KHR_texture_compression_astc_sliced_3d
) },
924 { PIPE_FORMAT_ASTC_4x4
,
925 PIPE_FORMAT_ASTC_5x4
,
926 PIPE_FORMAT_ASTC_5x5
,
927 PIPE_FORMAT_ASTC_6x5
,
928 PIPE_FORMAT_ASTC_6x6
,
929 PIPE_FORMAT_ASTC_8x5
,
930 PIPE_FORMAT_ASTC_8x6
,
931 PIPE_FORMAT_ASTC_8x8
,
932 PIPE_FORMAT_ASTC_10x5
,
933 PIPE_FORMAT_ASTC_10x6
,
934 PIPE_FORMAT_ASTC_10x8
,
935 PIPE_FORMAT_ASTC_10x10
,
936 PIPE_FORMAT_ASTC_12x10
,
937 PIPE_FORMAT_ASTC_12x12
,
938 PIPE_FORMAT_ASTC_4x4_SRGB
,
939 PIPE_FORMAT_ASTC_5x4_SRGB
,
940 PIPE_FORMAT_ASTC_5x5_SRGB
,
941 PIPE_FORMAT_ASTC_6x5_SRGB
,
942 PIPE_FORMAT_ASTC_6x6_SRGB
,
943 PIPE_FORMAT_ASTC_8x5_SRGB
,
944 PIPE_FORMAT_ASTC_8x6_SRGB
,
945 PIPE_FORMAT_ASTC_8x8_SRGB
,
946 PIPE_FORMAT_ASTC_10x5_SRGB
,
947 PIPE_FORMAT_ASTC_10x6_SRGB
,
948 PIPE_FORMAT_ASTC_10x8_SRGB
,
949 PIPE_FORMAT_ASTC_10x10_SRGB
,
950 PIPE_FORMAT_ASTC_12x10_SRGB
,
951 PIPE_FORMAT_ASTC_12x12_SRGB
} },
953 /* ASTC software fallback support. */
954 { { o(KHR_texture_compression_astc_ldr
),
955 o(KHR_texture_compression_astc_sliced_3d
) },
956 { PIPE_FORMAT_R8G8B8A8_UNORM
,
957 PIPE_FORMAT_R8G8B8A8_SRGB
} },
959 { { o(EXT_texture_shared_exponent
) },
960 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
962 { { o(EXT_texture_snorm
) },
963 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
965 { { o(EXT_texture_sRGB
),
966 o(EXT_texture_sRGB_decode
) },
967 { PIPE_FORMAT_A8B8G8R8_SRGB
,
968 PIPE_FORMAT_B8G8R8A8_SRGB
,
969 PIPE_FORMAT_A8R8G8B8_SRGB
,
970 PIPE_FORMAT_R8G8B8A8_SRGB
},
971 GL_TRUE
}, /* at least one format must be supported */
973 { { o(EXT_texture_sRGB_R8
) },
974 { PIPE_FORMAT_R8_SRGB
},
977 { { o(EXT_texture_type_2_10_10_10_REV
) },
978 { PIPE_FORMAT_R10G10B10A2_UNORM
,
979 PIPE_FORMAT_B10G10R10A2_UNORM
},
980 GL_TRUE
}, /* at least one format must be supported */
982 { { o(ATI_texture_compression_3dc
) },
983 { PIPE_FORMAT_LATC2_UNORM
} },
985 { { o(MESA_ycbcr_texture
) },
988 GL_TRUE
}, /* at least one format must be supported */
990 { { o(OES_compressed_ETC1_RGB8_texture
) },
991 { PIPE_FORMAT_ETC1_RGB8
,
992 PIPE_FORMAT_R8G8B8A8_UNORM
},
993 GL_TRUE
}, /* at least one format must be supported */
995 { { o(ARB_stencil_texturing
),
996 o(ARB_texture_stencil8
) },
997 { PIPE_FORMAT_X24S8_UINT
,
998 PIPE_FORMAT_S8X24_UINT
},
999 GL_TRUE
}, /* at least one format must be supported */
1001 { { o(AMD_compressed_ATC_texture
) },
1002 { PIPE_FORMAT_ATC_RGB
,
1003 PIPE_FORMAT_ATC_RGBA_EXPLICIT
,
1004 PIPE_FORMAT_ATC_RGBA_INTERPOLATED
} },
1007 /* Required: vertex fetch support. */
1008 static const struct st_extension_format_mapping vertex_mapping
[] = {
1009 { { o(EXT_vertex_array_bgra
) },
1010 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
1011 { { o(ARB_vertex_type_2_10_10_10_rev
) },
1012 { PIPE_FORMAT_R10G10B10A2_UNORM
,
1013 PIPE_FORMAT_B10G10R10A2_UNORM
,
1014 PIPE_FORMAT_R10G10B10A2_SNORM
,
1015 PIPE_FORMAT_B10G10R10A2_SNORM
,
1016 PIPE_FORMAT_R10G10B10A2_USCALED
,
1017 PIPE_FORMAT_B10G10R10A2_USCALED
,
1018 PIPE_FORMAT_R10G10B10A2_SSCALED
,
1019 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
1020 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
1021 { PIPE_FORMAT_R11G11B10_FLOAT
} },
1024 static const struct st_extension_format_mapping tbo_rgb32
[] = {
1025 { {o(ARB_texture_buffer_object_rgb32
) },
1026 { PIPE_FORMAT_R32G32B32_FLOAT
,
1027 PIPE_FORMAT_R32G32B32_UINT
,
1028 PIPE_FORMAT_R32G32B32_SINT
,
1033 * Extensions that are supported by all Gallium drivers:
1035 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
1036 extensions
->ARB_depth_texture
= GL_TRUE
;
1037 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
1038 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
1039 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
1040 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
1041 extensions
->ARB_fragment_program
= GL_TRUE
;
1042 extensions
->ARB_fragment_shader
= GL_TRUE
;
1043 extensions
->ARB_half_float_vertex
= GL_TRUE
;
1044 extensions
->ARB_internalformat_query
= GL_TRUE
;
1045 extensions
->ARB_internalformat_query2
= GL_TRUE
;
1046 extensions
->ARB_map_buffer_range
= GL_TRUE
;
1047 extensions
->ARB_sync
= GL_TRUE
;
1048 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
1049 extensions
->ARB_texture_cube_map
= GL_TRUE
;
1050 extensions
->ARB_texture_env_combine
= GL_TRUE
;
1051 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
1052 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
1053 extensions
->ARB_vertex_program
= GL_TRUE
;
1054 extensions
->ARB_vertex_shader
= GL_TRUE
;
1056 extensions
->EXT_blend_color
= GL_TRUE
;
1057 extensions
->EXT_blend_func_separate
= GL_TRUE
;
1058 extensions
->EXT_blend_minmax
= GL_TRUE
;
1059 extensions
->EXT_EGL_image_storage
= GL_TRUE
;
1060 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
1061 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
1062 extensions
->EXT_point_parameters
= GL_TRUE
;
1063 extensions
->EXT_provoking_vertex
= GL_TRUE
;
1064 extensions
->EXT_stencil_two_side
= GL_TRUE
;
1065 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
1067 extensions
->ATI_fragment_shader
= GL_TRUE
;
1068 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
1070 extensions
->MESA_framebuffer_flip_y
= GL_TRUE
;
1071 extensions
->MESA_pack_invert
= GL_TRUE
;
1073 extensions
->NV_copy_image
= GL_TRUE
;
1074 extensions
->NV_fog_distance
= GL_TRUE
;
1075 extensions
->NV_texture_env_combine4
= GL_TRUE
;
1076 extensions
->NV_texture_rectangle
= GL_TRUE
;
1078 extensions
->OES_EGL_image
= GL_TRUE
;
1079 extensions
->OES_EGL_image_external
= GL_TRUE
;
1080 extensions
->OES_draw_texture
= GL_TRUE
;
1082 /* Expose the extensions which directly correspond to gallium caps. */
1083 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
1084 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
1085 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
1089 /* Expose the extensions which directly correspond to gallium formats. */
1090 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
1091 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
1092 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
1093 init_format_extensions(screen
, extensions
, rt_blendable
,
1094 ARRAY_SIZE(rt_blendable
), PIPE_TEXTURE_2D
,
1095 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
|
1096 PIPE_BIND_BLENDABLE
);
1097 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
1098 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
1099 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
1100 init_format_extensions(screen
, extensions
, texture_mapping
,
1101 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
1102 PIPE_BIND_SAMPLER_VIEW
);
1103 init_format_extensions(screen
, extensions
, vertex_mapping
,
1104 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
1105 PIPE_BIND_VERTEX_BUFFER
);
1107 /* Figure out GLSL support and set GLSLVersion to it. */
1108 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
1109 consts
->GLSLVersionCompat
=
1110 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
1112 const unsigned ESSLVersion
=
1113 screen
->get_param(screen
, PIPE_CAP_ESSL_FEATURE_LEVEL
);
1114 const unsigned GLSLVersion
=
1115 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
1116 consts
->GLSLVersion
;
1118 _mesa_override_glsl_version(consts
);
1120 if (options
->force_glsl_version
> 0 &&
1121 options
->force_glsl_version
<= GLSLVersion
) {
1122 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
1125 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
1127 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
1129 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
1131 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
1133 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
1135 /* Technically we are turning on the EXT_gpu_shader5 extension,
1136 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1137 * switches on EXT_gpu_shader5:
1139 if (api
== API_OPENGLES2
&& ESSLVersion
>= 320)
1140 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1142 if (GLSLVersion
>= 400 && !options
->disable_arb_gpu_shader5
)
1143 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1144 if (GLSLVersion
>= 410)
1145 extensions
->ARB_shader_precision
= GL_TRUE
;
1147 /* This extension needs full OpenGL 3.2, but we don't know if that's
1148 * supported at this point. Only check the GLSL version. */
1149 if (GLSLVersion
>= 150 &&
1150 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
1151 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
1154 if (GLSLVersion
>= 140) {
1155 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1156 * we can always expose it if the driver can do 140. Supporting
1157 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1160 extensions
->EXT_gpu_shader4
= GL_TRUE
;
1161 extensions
->EXT_texture_buffer_object
= GL_TRUE
;
1163 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
1164 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
1167 if (GLSLVersion
>= 130) {
1168 consts
->NativeIntegers
= GL_TRUE
;
1169 consts
->MaxClipPlanes
= 8;
1171 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
1172 consts
->VertexID_is_zero_based
= GL_TRUE
;
1175 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1176 extensions
->ARB_conservative_depth
= GL_TRUE
;
1177 extensions
->ARB_shading_language_packing
= GL_TRUE
;
1178 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
1179 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
1180 extensions
->ARB_texture_query_levels
= GL_TRUE
;
1182 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
1184 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1185 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1186 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1188 if (screen
->get_param(screen
, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS
) &&
1189 screen
->get_param(screen
, PIPE_CAP_INTEGER_MULTIPLY_32X16
)) {
1190 extensions
->INTEL_shader_integer_functions2
= GL_TRUE
;
1193 /* Optional integer support for GLSL 1.2. */
1194 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1195 PIPE_SHADER_CAP_INTEGERS
) &&
1196 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1197 PIPE_SHADER_CAP_INTEGERS
)) {
1198 consts
->NativeIntegers
= GL_TRUE
;
1200 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1203 /* Integer textures make no sense before GLSL 1.30 */
1204 extensions
->EXT_texture_integer
= GL_FALSE
;
1207 if (options
->glsl_zero_init
) {
1208 consts
->GLSLZeroInit
= 1;
1210 consts
->GLSLZeroInit
= screen
->get_param(screen
, PIPE_CAP_GLSL_ZERO_INIT
);
1213 consts
->ForceIntegerTexNearest
= options
->force_integer_tex_nearest
;
1215 consts
->VendorOverride
= options
->force_gl_vendor
;
1217 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1219 /* Below are the cases which cannot be moved into tables easily. */
1221 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1222 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1223 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1224 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1225 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1228 /* What this is really checking for is the ability to support multiple
1229 * invocations of a geometry shader. There is no separate cap for that, so
1230 * we check the GLSLVersion.
1232 if ((GLSLVersion
>= 400 || ESSLVersion
>= 310) &&
1233 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1234 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1235 extensions
->OES_geometry_shader
= GL_TRUE
;
1238 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1239 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1241 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1242 extensions
->ARB_gpu_shader5
;
1244 /* Maximum sample count. */
1246 static const enum pipe_format color_formats
[] = {
1247 PIPE_FORMAT_R8G8B8A8_UNORM
,
1248 PIPE_FORMAT_B8G8R8A8_UNORM
,
1249 PIPE_FORMAT_A8R8G8B8_UNORM
,
1250 PIPE_FORMAT_A8B8G8R8_UNORM
,
1252 static const enum pipe_format depth_formats
[] = {
1253 PIPE_FORMAT_Z16_UNORM
,
1254 PIPE_FORMAT_Z24X8_UNORM
,
1255 PIPE_FORMAT_X8Z24_UNORM
,
1256 PIPE_FORMAT_Z32_UNORM
,
1257 PIPE_FORMAT_Z32_FLOAT
1259 static const enum pipe_format int_formats
[] = {
1260 PIPE_FORMAT_R8G8B8A8_SINT
1262 static const enum pipe_format void_formats
[] = {
1266 consts
->MaxSamples
=
1267 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1269 PIPE_BIND_RENDER_TARGET
);
1271 consts
->MaxImageSamples
=
1272 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1274 PIPE_BIND_SHADER_IMAGE
);
1276 consts
->MaxColorTextureSamples
=
1277 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1278 color_formats
, consts
->MaxSamples
,
1279 PIPE_BIND_SAMPLER_VIEW
);
1281 consts
->MaxDepthTextureSamples
=
1282 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1283 depth_formats
, consts
->MaxSamples
,
1284 PIPE_BIND_SAMPLER_VIEW
);
1286 consts
->MaxIntegerSamples
=
1287 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1288 int_formats
, consts
->MaxSamples
,
1289 PIPE_BIND_SAMPLER_VIEW
);
1291 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1292 consts
->MaxFramebufferSamples
=
1293 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1295 PIPE_BIND_RENDER_TARGET
);
1297 if (extensions
->AMD_framebuffer_multisample_advanced
) {
1298 /* AMD_framebuffer_multisample_advanced */
1299 /* This can be greater than storage samples. */
1300 consts
->MaxColorFramebufferSamples
=
1301 get_max_samples_for_formats_advanced(screen
,
1302 ARRAY_SIZE(color_formats
),
1305 PIPE_BIND_RENDER_TARGET
);
1307 /* If the driver supports N color samples, it means it supports
1308 * N samples and N storage samples. N samples >= N storage
1311 consts
->MaxColorFramebufferStorageSamples
= consts
->MaxSamples
;
1312 consts
->MaxDepthStencilFramebufferSamples
=
1313 consts
->MaxDepthTextureSamples
;
1315 assert(consts
->MaxColorFramebufferSamples
>=
1316 consts
->MaxDepthStencilFramebufferSamples
);
1317 assert(consts
->MaxDepthStencilFramebufferSamples
>=
1318 consts
->MaxColorFramebufferStorageSamples
);
1320 consts
->NumSupportedMultisampleModes
= 0;
1322 unsigned depth_samples_supported
= 0;
1324 for (unsigned samples
= 2;
1325 samples
<= consts
->MaxDepthStencilFramebufferSamples
;
1327 if (screen
->is_format_supported(screen
, PIPE_FORMAT_Z32_FLOAT
,
1328 PIPE_TEXTURE_2D
, samples
, samples
,
1329 PIPE_BIND_DEPTH_STENCIL
))
1330 depth_samples_supported
|= 1 << samples
;
1333 for (unsigned samples
= 2;
1334 samples
<= consts
->MaxColorFramebufferSamples
;
1336 for (unsigned depth_samples
= 2;
1337 depth_samples
<= samples
; depth_samples
++) {
1338 if (!(depth_samples_supported
& (1 << depth_samples
)))
1341 for (unsigned storage_samples
= 2;
1342 storage_samples
<= depth_samples
; storage_samples
++) {
1343 if (screen
->is_format_supported(screen
,
1344 PIPE_FORMAT_R8G8B8A8_UNORM
,
1348 PIPE_BIND_RENDER_TARGET
)) {
1349 unsigned i
= consts
->NumSupportedMultisampleModes
;
1351 assert(i
< ARRAY_SIZE(consts
->SupportedMultisampleModes
));
1352 consts
->SupportedMultisampleModes
[i
].NumColorSamples
=
1354 consts
->SupportedMultisampleModes
[i
].NumColorStorageSamples
=
1356 consts
->SupportedMultisampleModes
[i
].NumDepthStencilSamples
=
1358 consts
->NumSupportedMultisampleModes
++;
1366 if (consts
->MaxSamples
>= 2) {
1367 /* Real MSAA support */
1368 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1369 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1371 else if (consts
->MaxSamples
> 0 &&
1372 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1373 /* fake MSAA support */
1374 consts
->FakeSWMSAA
= GL_TRUE
;
1375 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1376 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1377 extensions
->ARB_texture_multisample
= GL_TRUE
;
1380 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1381 !options
->disable_blend_func_extended
)
1382 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1384 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1385 extensions
->ARB_timer_query
) {
1386 extensions
->EXT_timer_query
= GL_TRUE
;
1389 if (extensions
->ARB_transform_feedback2
&&
1390 extensions
->ARB_draw_instanced
) {
1391 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1393 if (options
->force_glsl_extensions_warn
)
1394 consts
->ForceGLSLExtensionsWarn
= 1;
1396 if (options
->disable_glsl_line_continuations
)
1397 consts
->DisableGLSLLineContinuations
= 1;
1399 if (options
->allow_glsl_extension_directive_midshader
)
1400 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1402 if (options
->allow_glsl_builtin_const_expression
)
1403 consts
->AllowGLSLBuiltinConstantExpression
= GL_TRUE
;
1405 if (options
->allow_glsl_relaxed_es
)
1406 consts
->AllowGLSLRelaxedES
= GL_TRUE
;
1408 if (options
->allow_glsl_layout_qualifier_on_function_parameters
)
1409 consts
->AllowLayoutQualifiersOnFunctionParameters
= GL_TRUE
;
1411 consts
->MinMapBufferAlignment
=
1412 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1414 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1415 if (api
== API_OPENGL_COMPAT
&&
1416 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1417 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1419 if (extensions
->ARB_texture_buffer_object
) {
1420 consts
->MaxTextureBufferSize
=
1421 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1423 consts
->TextureBufferOffsetAlignment
=
1424 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1426 if (consts
->TextureBufferOffsetAlignment
)
1427 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1429 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1430 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1431 PIPE_BIND_SAMPLER_VIEW
);
1434 extensions
->OES_texture_buffer
=
1435 extensions
->ARB_texture_buffer_object
&&
1436 extensions
->ARB_texture_buffer_range
&&
1437 extensions
->ARB_texture_buffer_object_rgb32
&&
1438 extensions
->ARB_shader_image_load_store
;
1440 extensions
->EXT_framebuffer_sRGB
=
1441 screen
->get_param(screen
, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL
) &&
1442 extensions
->EXT_sRGB
;
1444 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1445 * If the number of available texture indirections is very limited, then we
1446 * prefer to disable varying packing rather than run the risk of varying
1447 * packing preventing a shader from running.
1449 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1450 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1451 /* We can't disable varying packing if transform feedback is available,
1452 * because transform feedback code assumes a packed varying layout.
1454 if (!extensions
->EXT_transform_feedback
)
1455 consts
->DisableVaryingPacking
= GL_TRUE
;
1458 if (!screen
->get_param(screen
, PIPE_CAP_PACKED_STREAM_OUTPUT
))
1459 consts
->DisableTransformFeedbackPacking
= GL_TRUE
;
1461 unsigned max_fb_fetch_rts
= screen
->get_param(screen
, PIPE_CAP_FBFETCH
);
1462 bool coherent_fb_fetch
=
1463 screen
->get_param(screen
, PIPE_CAP_FBFETCH_COHERENT
);
1465 if (max_fb_fetch_rts
> 0) {
1466 extensions
->KHR_blend_equation_advanced
= true;
1467 extensions
->KHR_blend_equation_advanced_coherent
= coherent_fb_fetch
;
1469 if (max_fb_fetch_rts
>=
1470 screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
)) {
1471 extensions
->EXT_shader_framebuffer_fetch_non_coherent
= true;
1472 extensions
->EXT_shader_framebuffer_fetch
= coherent_fb_fetch
;
1476 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1477 if (consts
->MaxViewports
>= 16) {
1478 if (GLSLVersion
>= 400) {
1479 consts
->ViewportBounds
.Min
= -32768.0;
1480 consts
->ViewportBounds
.Max
= 32767.0;
1482 consts
->ViewportBounds
.Min
= -16384.0;
1483 consts
->ViewportBounds
.Max
= 16383.0;
1485 extensions
->ARB_viewport_array
= GL_TRUE
;
1486 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1487 if (extensions
->AMD_vertex_shader_layer
)
1488 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1491 if (extensions
->AMD_vertex_shader_layer
&&
1492 extensions
->AMD_vertex_shader_viewport_index
&&
1493 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1494 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1496 /* ARB_framebuffer_no_attachments */
1497 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1498 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1499 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1500 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1501 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1503 /* GL_ARB_ES3_compatibility.
1504 * Check requirements for GLSL ES 3.00.
1506 if (GLSLVersion
>= 130 &&
1507 extensions
->ARB_uniform_buffer_object
&&
1508 extensions
->NV_primitive_restart
&&
1509 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1510 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1511 /* Requirements for ETC2 emulation. */
1512 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1513 PIPE_TEXTURE_2D
, 0, 0,
1514 PIPE_BIND_SAMPLER_VIEW
) &&
1515 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_SRGB
,
1516 PIPE_TEXTURE_2D
, 0, 0,
1517 PIPE_BIND_SAMPLER_VIEW
) &&
1518 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1519 PIPE_TEXTURE_2D
, 0, 0,
1520 PIPE_BIND_SAMPLER_VIEW
) &&
1521 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1522 PIPE_TEXTURE_2D
, 0, 0,
1523 PIPE_BIND_SAMPLER_VIEW
) &&
1524 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1525 PIPE_TEXTURE_2D
, 0, 0,
1526 PIPE_BIND_SAMPLER_VIEW
) &&
1527 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1528 PIPE_TEXTURE_2D
, 0, 0,
1529 PIPE_BIND_SAMPLER_VIEW
)) {
1530 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1533 #ifdef HAVE_ST_VDPAU
1534 if (screen
->get_video_param
&&
1535 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1536 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1537 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1538 extensions
->NV_vdpau_interop
= GL_TRUE
;
1542 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1543 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1544 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1547 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1548 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1549 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1551 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1552 int compute_supported_irs
=
1553 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1554 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1555 if (compute_supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
1556 (1 << PIPE_SHADER_IR_NIR
))) {
1557 enum pipe_shader_ir ir
=
1558 (compute_supported_irs
& PIPE_SHADER_IR_NIR
) ?
1559 PIPE_SHADER_IR_NIR
: PIPE_SHADER_IR_TGSI
;
1560 uint64_t grid_size
[3], block_size
[3];
1561 uint64_t max_local_size
, max_threads_per_block
;
1563 screen
->get_compute_param(screen
, ir
,
1564 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1565 screen
->get_compute_param(screen
, ir
,
1566 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1567 screen
->get_compute_param(screen
, ir
,
1568 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1569 &max_threads_per_block
);
1570 screen
->get_compute_param(screen
, ir
,
1571 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1574 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1575 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1577 for (i
= 0; i
< 3; i
++) {
1578 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1579 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1582 extensions
->ARB_compute_shader
=
1583 extensions
->ARB_shader_image_load_store
&&
1584 extensions
->ARB_shader_atomic_counters
;
1586 if (extensions
->ARB_compute_shader
) {
1587 uint64_t max_variable_threads_per_block
= 0;
1589 screen
->get_compute_param(screen
, ir
,
1590 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1591 &max_variable_threads_per_block
);
1593 for (i
= 0; i
< 3; i
++) {
1594 /* Clamp the values to avoid having a local work group size
1595 * greater than the maximum number of invocations.
1597 consts
->MaxComputeVariableGroupSize
[i
] =
1598 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1599 max_variable_threads_per_block
);
1601 consts
->MaxComputeVariableGroupInvocations
=
1602 max_variable_threads_per_block
;
1604 extensions
->ARB_compute_variable_group_size
=
1605 max_variable_threads_per_block
> 0;
1610 extensions
->ARB_texture_float
=
1611 extensions
->OES_texture_half_float
&&
1612 extensions
->OES_texture_float
;
1614 if (extensions
->EXT_texture_filter_anisotropic
&&
1615 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1616 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1618 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1620 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1621 * there's no clean way of telling whether we would support ES 3.1 from
1622 * here, so copy the condition from compute_version_es2 here. A lot of
1623 * these are redunant, but simpler to just have a (near-)exact copy here.
1625 extensions
->ARB_ES3_1_compatibility
=
1626 extensions
->ARB_ES3_compatibility
&&
1627 extensions
->ARB_arrays_of_arrays
&&
1628 extensions
->ARB_compute_shader
&&
1629 extensions
->ARB_draw_indirect
&&
1630 extensions
->ARB_explicit_uniform_location
&&
1631 extensions
->ARB_framebuffer_no_attachments
&&
1632 extensions
->ARB_shader_atomic_counters
&&
1633 extensions
->ARB_shader_image_load_store
&&
1634 extensions
->ARB_shader_image_size
&&
1635 extensions
->ARB_shader_storage_buffer_object
&&
1636 extensions
->ARB_shading_language_packing
&&
1637 extensions
->ARB_stencil_texturing
&&
1638 extensions
->ARB_texture_multisample
&&
1639 extensions
->ARB_gpu_shader5
&&
1640 extensions
->EXT_shader_integer_mix
;
1642 extensions
->OES_texture_cube_map_array
=
1643 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1644 extensions
->OES_geometry_shader
&&
1645 extensions
->ARB_texture_cube_map_array
;
1647 extensions
->OES_viewport_array
=
1648 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1649 extensions
->OES_geometry_shader
&&
1650 extensions
->ARB_viewport_array
;
1652 extensions
->OES_primitive_bounding_box
=
1653 extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310;
1655 consts
->NoPrimitiveBoundingBoxOutput
= true;
1657 extensions
->ANDROID_extension_pack_es31a
=
1658 extensions
->KHR_texture_compression_astc_ldr
&&
1659 extensions
->KHR_blend_equation_advanced
&&
1660 extensions
->OES_sample_variables
&&
1661 extensions
->ARB_shader_image_load_store
&&
1662 extensions
->ARB_texture_stencil8
&&
1663 extensions
->ARB_texture_multisample
&&
1664 extensions
->OES_copy_image
&&
1665 extensions
->ARB_draw_buffers_blend
&&
1666 extensions
->OES_geometry_shader
&&
1667 extensions
->ARB_gpu_shader5
&&
1668 extensions
->OES_primitive_bounding_box
&&
1669 extensions
->ARB_tessellation_shader
&&
1670 extensions
->ARB_texture_border_clamp
&&
1671 extensions
->OES_texture_buffer
&&
1672 extensions
->OES_texture_cube_map_array
&&
1673 extensions
->EXT_texture_sRGB_decode
;
1675 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1676 * before overall versions are selected. Also it's actually a subset of ES
1677 * 3.2, since it doesn't require ASTC or advanced blending.
1679 extensions
->ARB_ES3_2_compatibility
=
1680 extensions
->ARB_ES3_1_compatibility
&&
1681 extensions
->KHR_robustness
&&
1682 extensions
->ARB_copy_image
&&
1683 extensions
->ARB_draw_buffers_blend
&&
1684 extensions
->ARB_draw_elements_base_vertex
&&
1685 extensions
->OES_geometry_shader
&&
1686 extensions
->ARB_gpu_shader5
&&
1687 extensions
->ARB_sample_shading
&&
1688 extensions
->ARB_tessellation_shader
&&
1689 extensions
->ARB_texture_border_clamp
&&
1690 extensions
->OES_texture_buffer
&&
1691 extensions
->ARB_texture_cube_map_array
&&
1692 extensions
->ARB_texture_stencil8
&&
1693 extensions
->ARB_texture_multisample
;
1695 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1696 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1697 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1699 bool pre_snap_triangles
, pre_snap_points_lines
;
1701 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1703 pre_snap_triangles
=
1704 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1705 pre_snap_points_lines
=
1706 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1708 extensions
->NV_conservative_raster
=
1709 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1711 if (extensions
->NV_conservative_raster
) {
1712 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1713 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1714 extensions
->NV_conservative_raster_pre_snap
=
1715 pre_snap_triangles
&& pre_snap_points_lines
;
1719 if (extensions
->ARB_gl_spirv
) {
1720 struct spirv_supported_capabilities
*spirv_caps
= &consts
->SpirVCapabilities
;
1722 spirv_caps
->atomic_storage
= extensions
->ARB_shader_atomic_counters
;
1723 spirv_caps
->demote_to_helper_invocation
= extensions
->EXT_demote_to_helper_invocation
;
1724 spirv_caps
->draw_parameters
= extensions
->ARB_shader_draw_parameters
;
1725 spirv_caps
->float64
= extensions
->ARB_gpu_shader_fp64
;
1726 spirv_caps
->geometry_streams
= extensions
->ARB_gpu_shader5
;
1727 spirv_caps
->image_ms_array
= extensions
->ARB_shader_image_load_store
&&
1728 consts
->MaxImageSamples
> 1;
1729 spirv_caps
->image_read_without_format
= extensions
->EXT_shader_image_load_formatted
;
1730 spirv_caps
->image_write_without_format
= extensions
->ARB_shader_image_load_store
;
1731 spirv_caps
->int64
= extensions
->ARB_gpu_shader_int64
;
1732 spirv_caps
->post_depth_coverage
= extensions
->ARB_post_depth_coverage
;
1733 spirv_caps
->shader_clock
= extensions
->ARB_shader_clock
;
1734 spirv_caps
->shader_viewport_index_layer
= extensions
->ARB_shader_viewport_layer_array
;
1735 spirv_caps
->stencil_export
= extensions
->ARB_shader_stencil_export
;
1736 spirv_caps
->storage_image_ms
= extensions
->ARB_shader_image_load_store
&&
1737 consts
->MaxImageSamples
> 1;
1738 spirv_caps
->subgroup_ballot
= extensions
->ARB_shader_ballot
;
1739 spirv_caps
->subgroup_vote
= extensions
->ARB_shader_group_vote
;
1740 spirv_caps
->tessellation
= extensions
->ARB_tessellation_shader
;
1741 spirv_caps
->transform_feedback
= extensions
->ARB_transform_feedback3
;
1742 spirv_caps
->variable_pointers
=
1743 screen
->get_param(screen
, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS
);
1744 spirv_caps
->integer_functions2
= extensions
->INTEL_shader_integer_functions2
;
1746 consts
->SpirVExtensions
= CALLOC_STRUCT(spirv_supported_extensions
);
1747 _mesa_fill_supported_spirv_extensions(consts
->SpirVExtensions
, spirv_caps
);
1750 consts
->AllowDrawOutOfOrder
= options
->allow_draw_out_of_order
;