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
,
87 c
->MaxTextureSize
= screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_SIZE
);
88 c
->MaxTextureSize
= MIN2(c
->MaxTextureSize
, 1 << (MAX_TEXTURE_LEVELS
- 1));
91 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
92 MAX_3D_TEXTURE_LEVELS
);
94 c
->MaxCubeTextureLevels
95 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
96 MAX_CUBE_TEXTURE_LEVELS
);
98 c
->MaxTextureRectSize
= _min(c
->MaxTextureSize
, MAX_TEXTURE_RECT_SIZE
);
100 c
->MaxArrayTextureLayers
101 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
103 /* Define max viewport size and max renderbuffer size in terms of
104 * max texture size (note: max tex RECT size = max tex 2D size).
105 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
107 c
->MaxViewportWidth
=
108 c
->MaxViewportHeight
=
109 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
112 screen
->get_param(screen
, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS
);
113 c
->ViewportSubpixelBits
=
114 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
116 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
117 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
118 1, MAX_DRAW_BUFFERS
);
120 c
->MaxDualSourceDrawBuffers
=
121 _clamp(screen
->get_param(screen
,
122 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
123 0, MAX_DRAW_BUFFERS
);
126 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
128 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
131 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
133 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
135 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
136 * for non-aa sizes, but we can go down to 0.0 for aa points.
138 c
->MinPointSize
= 1.0f
;
139 c
->MinPointSizeAA
= 0.0f
;
141 c
->MaxTextureMaxAnisotropy
=
143 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
145 c
->MaxTextureLodBias
=
146 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
148 c
->QuadsFollowProvokingVertexConvention
=
149 screen
->get_param(screen
,
150 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
152 c
->MaxUniformBlockSize
=
153 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
154 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
155 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
156 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
158 c
->MaxUniformBlockSize
= MIN2(c
->MaxUniformBlockSize
, INT_MAX
- 127);
160 if (c
->MaxUniformBlockSize
< 16384) {
164 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
165 struct gl_shader_compiler_options
*options
;
166 struct gl_program_constants
*pc
;
167 const nir_shader_compiler_options
*nir_options
= NULL
;
169 if (screen
->get_compiler_options
) {
170 nir_options
= (const nir_shader_compiler_options
*)
171 screen
->get_compiler_options(screen
, PIPE_SHADER_IR_NIR
, sh
);
174 const gl_shader_stage stage
= tgsi_processor_to_shader_stage(sh
);
175 pc
= &c
->Program
[stage
];
176 options
= &c
->ShaderCompilerOptions
[stage
];
177 c
->ShaderCompilerOptions
[stage
].NirOptions
= nir_options
;
179 if (sh
== PIPE_SHADER_COMPUTE
) {
180 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
183 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
184 if (!(supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
185 (1 << PIPE_SHADER_IR_NIR
))))
189 pc
->MaxTextureImageUnits
=
190 _min(screen
->get_shader_param(screen
, sh
,
191 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
192 MAX_TEXTURE_IMAGE_UNITS
);
194 pc
->MaxInstructions
=
195 pc
->MaxNativeInstructions
=
196 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
197 pc
->MaxAluInstructions
=
198 pc
->MaxNativeAluInstructions
=
199 screen
->get_shader_param(screen
, sh
,
200 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
201 pc
->MaxTexInstructions
=
202 pc
->MaxNativeTexInstructions
=
203 screen
->get_shader_param(screen
, sh
,
204 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
205 pc
->MaxTexIndirections
=
206 pc
->MaxNativeTexIndirections
=
207 screen
->get_shader_param(screen
, sh
,
208 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
210 pc
->MaxNativeAttribs
=
211 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
214 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
216 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
218 pc
->MaxUniformComponents
=
219 screen
->get_shader_param(screen
, sh
,
220 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / 4;
221 pc
->MaxUniformComponents
= MIN2(pc
->MaxUniformComponents
,
224 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
225 * This gives us a limit of 4096 values - but we may need to generate
226 * internal values in addition to what the source program uses. So, we
227 * drop the limit one step lower, to 2048, to be safe.
230 pc
->MaxNativeParameters
= MIN2(pc
->MaxUniformComponents
/ 4, 2048);
231 pc
->MaxInputComponents
=
232 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
233 pc
->MaxOutputComponents
=
234 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
237 pc
->MaxUniformBlocks
=
238 screen
->get_shader_param(screen
, sh
,
239 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
240 if (pc
->MaxUniformBlocks
)
241 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
242 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
244 pc
->MaxCombinedUniformComponents
=
245 pc
->MaxUniformComponents
+
246 (uint64_t)c
->MaxUniformBlockSize
/ 4 * pc
->MaxUniformBlocks
;
248 pc
->MaxShaderStorageBlocks
=
249 screen
->get_shader_param(screen
, sh
,
250 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
252 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
255 * for separate atomic counters get the actual hw limits
256 * per stage on atomic counters and buffers
258 pc
->MaxAtomicCounters
= temp
;
259 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
260 } else if (pc
->MaxShaderStorageBlocks
) {
261 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
263 * without separate atomic counters, reserve half of the available
264 * SSBOs for atomic buffers, and the other half for normal SSBOs.
266 pc
->MaxAtomicBuffers
= pc
->MaxShaderStorageBlocks
/ 2;
267 pc
->MaxShaderStorageBlocks
-= pc
->MaxAtomicBuffers
;
269 pc
->MaxImageUniforms
= screen
->get_shader_param(
270 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
272 /* Gallium doesn't really care about local vs. env parameters so use the
275 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
276 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
278 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
279 pc
->LowInt
.RangeMin
= 31;
280 pc
->LowInt
.RangeMax
= 30;
281 pc
->LowInt
.Precision
= 0;
282 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
285 /* TODO: make these more fine-grained if anyone needs it */
286 options
->MaxIfDepth
=
287 screen
->get_shader_param(screen
, sh
,
288 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
289 options
->EmitNoLoops
=
290 !screen
->get_shader_param(screen
, sh
,
291 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
292 options
->EmitNoMainReturn
=
293 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
295 options
->EmitNoCont
=
296 !screen
->get_shader_param(screen
, sh
,
297 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
299 options
->EmitNoIndirectInput
=
300 !screen
->get_shader_param(screen
, sh
,
301 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
302 options
->EmitNoIndirectOutput
=
303 !screen
->get_shader_param(screen
, sh
,
304 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
305 options
->EmitNoIndirectTemp
=
306 !screen
->get_shader_param(screen
, sh
,
307 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
308 options
->EmitNoIndirectUniform
=
309 !screen
->get_shader_param(screen
, sh
,
310 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
312 if (pc
->MaxNativeInstructions
&&
313 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
317 if (options
->EmitNoLoops
)
318 options
->MaxUnrollIterations
=
319 MIN2(screen
->get_shader_param(screen
, sh
,
320 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
323 options
->MaxUnrollIterations
=
324 screen
->get_shader_param(screen
, sh
,
325 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
327 if (!screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
))
328 options
->LowerCombinedClipCullDistance
= true;
330 bool prefer_nir
= PIPE_SHADER_IR_NIR
==
331 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_PREFERRED_IR
);
333 /* NIR can do the lowering on our behalf and we'll get better results
334 * because it can actually optimize SSBO access.
336 options
->LowerBufferInterfaceBlocks
= !prefer_nir
;
339 c
->MaxUserAssignableUniformLocations
=
340 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
+
341 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformComponents
+
342 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformComponents
+
343 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformComponents
+
344 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
;
346 c
->GLSLOptimizeConservatively
=
347 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
348 c
->GLSLTessLevelsAsInputs
=
349 screen
->get_param(screen
, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS
);
351 !screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
);
352 c
->LowerCsDerivedVariables
= true;
353 c
->PrimitiveRestartForPatches
=
354 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
356 c
->MaxCombinedTextureImageUnits
=
357 _min(c
->Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
358 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxTextureImageUnits
+
359 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxTextureImageUnits
+
360 c
->Program
[MESA_SHADER_GEOMETRY
].MaxTextureImageUnits
+
361 c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
+
362 c
->Program
[MESA_SHADER_COMPUTE
].MaxTextureImageUnits
,
363 MAX_COMBINED_TEXTURE_IMAGE_UNITS
);
365 /* This depends on program constants. */
366 c
->MaxTextureCoordUnits
367 = _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
368 MAX_TEXTURE_COORD_UNITS
);
371 _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
372 c
->MaxTextureCoordUnits
);
374 c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
=
375 MIN2(c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
, 16);
377 c
->MaxVarying
= screen
->get_param(screen
, PIPE_CAP_MAX_VARYINGS
);
378 c
->MaxVarying
= MIN2(c
->MaxVarying
, MAX_VARYING
);
379 c
->MaxGeometryOutputVertices
=
380 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES
);
381 c
->MaxGeometryTotalOutputComponents
=
382 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS
);
383 c
->MaxGeometryShaderInvocations
=
384 screen
->get_param(screen
, PIPE_CAP_MAX_GS_INVOCATIONS
);
385 c
->MaxTessPatchComponents
=
386 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS
),
389 c
->MinProgramTexelOffset
=
390 screen
->get_param(screen
, PIPE_CAP_MIN_TEXEL_OFFSET
);
391 c
->MaxProgramTexelOffset
=
392 screen
->get_param(screen
, PIPE_CAP_MAX_TEXEL_OFFSET
);
394 c
->MaxProgramTextureGatherComponents
=
395 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
);
396 c
->MinProgramTextureGatherOffset
=
397 screen
->get_param(screen
, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET
);
398 c
->MaxProgramTextureGatherOffset
=
399 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET
);
401 c
->MaxTransformFeedbackBuffers
=
402 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
);
403 c
->MaxTransformFeedbackBuffers
= MIN2(c
->MaxTransformFeedbackBuffers
,
404 MAX_FEEDBACK_BUFFERS
);
405 c
->MaxTransformFeedbackSeparateComponents
=
406 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS
);
407 c
->MaxTransformFeedbackInterleavedComponents
=
408 screen
->get_param(screen
,
409 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS
);
410 c
->MaxVertexStreams
=
411 MAX2(1, screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_STREAMS
));
413 /* The vertex stream must fit into pipe_stream_output_info::stream */
414 assert(c
->MaxVertexStreams
<= 4);
416 c
->MaxVertexAttribStride
417 = screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE
);
419 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
422 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET
);
423 c
->MaxVertexAttribRelativeOffset
= MIN2(0xffff, temp
);
425 c
->StripTextureBorder
= GL_TRUE
;
427 c
->GLSLSkipStrictMaxUniformLimitCheck
=
428 screen
->get_param(screen
, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS
);
430 c
->UniformBufferOffsetAlignment
=
431 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
434 extensions
->ARB_uniform_buffer_object
= GL_TRUE
;
435 c
->MaxCombinedUniformBlocks
= c
->MaxUniformBufferBindings
=
436 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformBlocks
+
437 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformBlocks
+
438 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformBlocks
+
439 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformBlocks
+
440 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformBlocks
+
441 c
->Program
[MESA_SHADER_COMPUTE
].MaxUniformBlocks
;
442 assert(c
->MaxCombinedUniformBlocks
<= MAX_COMBINED_UNIFORM_BUFFERS
);
445 c
->GLSLFragCoordIsSysVal
=
446 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL
);
447 c
->GLSLFrontFacingIsSysVal
=
448 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
450 /* GL_ARB_get_program_binary
452 * The QT framework has a bug in their shader program cache, which is built
453 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
454 * we don't enable more than 1 binary format for compatibility profiles.
456 if (api
!= API_OPENGL_COMPAT
&&
457 screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
458 c
->NumProgramBinaryFormats
= 1;
460 c
->MaxAtomicBufferBindings
=
461 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
462 c
->MaxAtomicBufferSize
=
463 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
465 c
->MaxCombinedAtomicBuffers
=
466 MIN2(screen
->get_param(screen
,
467 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS
),
468 MAX_COMBINED_ATOMIC_BUFFERS
);
469 if (!c
->MaxCombinedAtomicBuffers
) {
470 c
->MaxCombinedAtomicBuffers
=
471 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
472 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
473 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
474 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
475 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
476 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
479 c
->MaxCombinedAtomicCounters
=
480 screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS
);
481 if (!c
->MaxCombinedAtomicCounters
)
482 c
->MaxCombinedAtomicCounters
= MAX_ATOMIC_COUNTERS
;
484 if (c
->MaxCombinedAtomicBuffers
> 0) {
485 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
486 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
489 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
490 c
->ShaderStorageBufferOffsetAlignment
=
491 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
492 if (c
->ShaderStorageBufferOffsetAlignment
) {
493 c
->MaxCombinedShaderStorageBlocks
=
494 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS
),
495 MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
496 if (!c
->MaxCombinedShaderStorageBlocks
) {
497 c
->MaxCombinedShaderStorageBlocks
=
498 c
->Program
[MESA_SHADER_VERTEX
].MaxShaderStorageBlocks
+
499 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxShaderStorageBlocks
+
500 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxShaderStorageBlocks
+
501 c
->Program
[MESA_SHADER_GEOMETRY
].MaxShaderStorageBlocks
+
502 c
->Program
[MESA_SHADER_FRAGMENT
].MaxShaderStorageBlocks
;
503 assert(c
->MaxCombinedShaderStorageBlocks
< MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
505 c
->MaxShaderStorageBufferBindings
= c
->MaxCombinedShaderStorageBlocks
;
507 c
->MaxCombinedShaderOutputResources
+=
508 c
->MaxCombinedShaderStorageBlocks
;
509 c
->MaxShaderStorageBlockSize
=
510 screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_BUFFER_SIZE
);
511 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
514 c
->MaxCombinedImageUniforms
=
515 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
516 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
517 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
518 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
519 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
520 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
521 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
522 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
523 if (c
->MaxCombinedImageUniforms
) {
524 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
525 extensions
->ARB_shader_image_size
= GL_TRUE
;
528 /* ARB_framebuffer_no_attachments */
529 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
530 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
531 /* NOTE: we cheat here a little by assuming that
532 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
533 * number of layers as we need, although we technically
534 * could have more the generality is not really useful
537 c
->MaxFramebufferLayers
=
538 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
540 c
->MaxWindowRectangles
=
541 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
543 c
->SparseBufferPageSize
=
544 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
546 c
->AllowMappedBuffersDuringExecution
=
547 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
549 c
->UseSTD430AsDefaultPacking
=
550 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
552 c
->MaxSubpixelPrecisionBiasBits
=
553 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
555 c
->ConservativeRasterDilateRange
[0] =
556 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
557 c
->ConservativeRasterDilateRange
[1] =
558 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
559 c
->ConservativeRasterDilateGranularity
=
560 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
562 /* limit the max combined shader output resources to a driver limit */
563 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
564 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
565 c
->MaxCombinedShaderOutputResources
= temp
;
570 * Given a member \c x of struct gl_extensions, return offset of
573 #define o(x) offsetof(struct gl_extensions, x)
576 struct st_extension_cap_mapping
{
577 int extension_offset
;
581 struct st_extension_format_mapping
{
582 int extension_offset
[2];
583 enum pipe_format format
[32];
585 /* If TRUE, at least one format must be supported for the extensions to be
586 * advertised. If FALSE, all the formats must be supported. */
587 GLboolean need_at_least_one
;
591 * Enable extensions if certain pipe formats are supported by the driver.
592 * What extensions will be enabled and what formats must be supported is
593 * described by the array of st_extension_format_mapping.
595 * target and bind_flags are passed to is_format_supported.
598 init_format_extensions(struct pipe_screen
*screen
,
599 struct gl_extensions
*extensions
,
600 const struct st_extension_format_mapping
*mapping
,
601 unsigned num_mappings
,
602 enum pipe_texture_target target
,
605 GLboolean
*extension_table
= (GLboolean
*) extensions
;
608 int num_formats
= ARRAY_SIZE(mapping
->format
);
609 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
611 for (i
= 0; i
< num_mappings
; i
++) {
612 int num_supported
= 0;
614 /* Examine each format in the list. */
615 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
616 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
617 target
, 0, 0, bind_flags
)) {
622 if (!num_supported
||
623 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
627 /* Enable all extensions in the list. */
628 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
629 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
635 * Given a list of formats and bind flags, return the maximum number
636 * of samples supported by any of those formats.
639 get_max_samples_for_formats(struct pipe_screen
*screen
,
640 unsigned num_formats
,
641 const enum pipe_format
*formats
,
642 unsigned max_samples
,
647 for (i
= max_samples
; i
> 0; --i
) {
648 for (f
= 0; f
< num_formats
; f
++) {
649 if (screen
->is_format_supported(screen
, formats
[f
],
650 PIPE_TEXTURE_2D
, i
, i
, bind
)) {
659 get_max_samples_for_formats_advanced(struct pipe_screen
*screen
,
660 unsigned num_formats
,
661 const enum pipe_format
*formats
,
662 unsigned max_samples
,
663 unsigned num_storage_samples
,
668 for (i
= max_samples
; i
> 0; --i
) {
669 for (f
= 0; f
< num_formats
; f
++) {
670 if (screen
->is_format_supported(screen
, formats
[f
], PIPE_TEXTURE_2D
,
671 i
, num_storage_samples
, bind
)) {
680 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
681 * which GL extensions are supported.
682 * Quite a few extensions are always supported because they are standard
683 * features or can be built on top of other gallium features.
684 * Some fine tuning may still be needed.
686 void st_init_extensions(struct pipe_screen
*screen
,
687 struct gl_constants
*consts
,
688 struct gl_extensions
*extensions
,
689 struct st_config_options
*options
,
693 GLboolean
*extension_table
= (GLboolean
*) extensions
;
695 static const struct st_extension_cap_mapping cap_mapping
[] = {
696 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
697 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
698 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
699 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
700 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
701 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
702 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
703 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
704 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
705 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
706 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
707 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
708 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
709 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
710 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
711 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
712 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
713 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
714 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
715 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
716 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
717 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
718 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE
},
719 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
720 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
721 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
722 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
723 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
724 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
725 { o(ARB_sample_locations
), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS
},
726 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
727 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
728 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
729 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
730 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
731 { o(EXT_shader_image_load_formatted
), PIPE_CAP_IMAGE_LOAD_FORMATTED
},
732 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
733 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
734 { o(ARB_shader_texture_lod
), PIPE_CAP_SM3
},
735 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
736 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
737 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
738 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
739 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE
},
740 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
741 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
742 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
743 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
744 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
745 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
746 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
747 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
748 { o(ARB_fragment_shader_interlock
), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK
},
750 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
751 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
752 { o(EXT_disjoint_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
753 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
754 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
755 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
756 { o(EXT_multisampled_render_to_texture
), PIPE_CAP_SURFACE_SAMPLE_COUNT
},
757 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
758 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
759 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
760 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
761 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
762 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
763 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
764 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
766 { o(AMD_depth_clamp_separate
), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE
},
767 { o(AMD_framebuffer_multisample_advanced
), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS
},
768 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
769 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
770 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
771 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
772 { o(INTEL_conservative_rasterization
), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE
},
773 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
774 { o(NV_compute_shader_derivatives
), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES
},
775 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
776 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
777 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
778 { o(NV_shader_atomic_float
), PIPE_CAP_TGSI_ATOMFADD
},
779 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
780 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
781 /* GL_NV_point_sprite is not supported by gallium because we don't
782 * support the GL_POINT_SPRITE_R_MODE_NV option. */
784 { o(OES_standard_derivatives
), PIPE_CAP_SM3
},
785 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
786 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
787 { o(OES_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
790 /* Required: render target and sampler support */
791 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
792 { { o(OES_texture_float
) },
793 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
795 { { o(OES_texture_half_float
) },
796 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
798 { { o(ARB_texture_rgb10_a2ui
) },
799 { PIPE_FORMAT_R10G10B10A2_UINT
,
800 PIPE_FORMAT_B10G10R10A2_UINT
},
801 GL_TRUE
}, /* at least one format must be supported */
804 { PIPE_FORMAT_A8B8G8R8_SRGB
,
805 PIPE_FORMAT_B8G8R8A8_SRGB
,
806 PIPE_FORMAT_R8G8B8A8_SRGB
},
807 GL_TRUE
}, /* at least one format must be supported */
809 { { o(EXT_packed_float
) },
810 { PIPE_FORMAT_R11G11B10_FLOAT
} },
812 { { o(EXT_texture_integer
) },
813 { PIPE_FORMAT_R32G32B32A32_UINT
,
814 PIPE_FORMAT_R32G32B32A32_SINT
} },
816 { { o(ARB_texture_rg
) },
817 { PIPE_FORMAT_R8_UNORM
,
818 PIPE_FORMAT_R8G8_UNORM
} },
820 { { o(EXT_render_snorm
) },
821 { PIPE_FORMAT_R8_SNORM
,
822 PIPE_FORMAT_R8G8_SNORM
,
823 PIPE_FORMAT_R8G8B8A8_SNORM
,
824 PIPE_FORMAT_R16_SNORM
,
825 PIPE_FORMAT_R16G16_SNORM
,
826 PIPE_FORMAT_R16G16B16A16_SNORM
} },
829 /* Required: render target, sampler, and blending */
830 static const struct st_extension_format_mapping rt_blendable
[] = {
831 { { o(EXT_float_blend
) },
832 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
835 /* Required: depth stencil and sampler support */
836 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
837 { { o(ARB_depth_buffer_float
) },
838 { PIPE_FORMAT_Z32_FLOAT
,
839 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
842 /* Required: sampler support */
843 static const struct st_extension_format_mapping texture_mapping
[] = {
844 { { o(ARB_texture_compression_rgtc
) },
845 { PIPE_FORMAT_RGTC1_UNORM
,
846 PIPE_FORMAT_RGTC1_SNORM
,
847 PIPE_FORMAT_RGTC2_UNORM
,
848 PIPE_FORMAT_RGTC2_SNORM
} },
850 { { o(EXT_texture_compression_latc
) },
851 { PIPE_FORMAT_LATC1_UNORM
,
852 PIPE_FORMAT_LATC1_SNORM
,
853 PIPE_FORMAT_LATC2_UNORM
,
854 PIPE_FORMAT_LATC2_SNORM
} },
856 { { o(EXT_texture_compression_s3tc
),
857 o(ANGLE_texture_compression_dxt
) },
858 { PIPE_FORMAT_DXT1_RGB
,
859 PIPE_FORMAT_DXT1_RGBA
,
860 PIPE_FORMAT_DXT3_RGBA
,
861 PIPE_FORMAT_DXT5_RGBA
} },
863 { { o(EXT_texture_compression_s3tc_srgb
) },
864 { PIPE_FORMAT_DXT1_SRGB
,
865 PIPE_FORMAT_DXT1_SRGBA
,
866 PIPE_FORMAT_DXT3_SRGBA
,
867 PIPE_FORMAT_DXT5_SRGBA
} },
869 { { o(ARB_texture_compression_bptc
) },
870 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
871 PIPE_FORMAT_BPTC_SRGBA
,
872 PIPE_FORMAT_BPTC_RGB_FLOAT
,
873 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
875 { { o(KHR_texture_compression_astc_ldr
),
876 o(KHR_texture_compression_astc_sliced_3d
) },
877 { PIPE_FORMAT_ASTC_4x4
,
878 PIPE_FORMAT_ASTC_5x4
,
879 PIPE_FORMAT_ASTC_5x5
,
880 PIPE_FORMAT_ASTC_6x5
,
881 PIPE_FORMAT_ASTC_6x6
,
882 PIPE_FORMAT_ASTC_8x5
,
883 PIPE_FORMAT_ASTC_8x6
,
884 PIPE_FORMAT_ASTC_8x8
,
885 PIPE_FORMAT_ASTC_10x5
,
886 PIPE_FORMAT_ASTC_10x6
,
887 PIPE_FORMAT_ASTC_10x8
,
888 PIPE_FORMAT_ASTC_10x10
,
889 PIPE_FORMAT_ASTC_12x10
,
890 PIPE_FORMAT_ASTC_12x12
,
891 PIPE_FORMAT_ASTC_4x4_SRGB
,
892 PIPE_FORMAT_ASTC_5x4_SRGB
,
893 PIPE_FORMAT_ASTC_5x5_SRGB
,
894 PIPE_FORMAT_ASTC_6x5_SRGB
,
895 PIPE_FORMAT_ASTC_6x6_SRGB
,
896 PIPE_FORMAT_ASTC_8x5_SRGB
,
897 PIPE_FORMAT_ASTC_8x6_SRGB
,
898 PIPE_FORMAT_ASTC_8x8_SRGB
,
899 PIPE_FORMAT_ASTC_10x5_SRGB
,
900 PIPE_FORMAT_ASTC_10x6_SRGB
,
901 PIPE_FORMAT_ASTC_10x8_SRGB
,
902 PIPE_FORMAT_ASTC_10x10_SRGB
,
903 PIPE_FORMAT_ASTC_12x10_SRGB
,
904 PIPE_FORMAT_ASTC_12x12_SRGB
} },
906 /* ASTC software fallback support. */
907 { { o(KHR_texture_compression_astc_ldr
),
908 o(KHR_texture_compression_astc_sliced_3d
) },
909 { PIPE_FORMAT_R8G8B8A8_UNORM
,
910 PIPE_FORMAT_R8G8B8A8_SRGB
} },
912 { { o(EXT_texture_shared_exponent
) },
913 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
915 { { o(EXT_texture_snorm
) },
916 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
918 { { o(EXT_texture_sRGB
),
919 o(EXT_texture_sRGB_decode
) },
920 { PIPE_FORMAT_A8B8G8R8_SRGB
,
921 PIPE_FORMAT_B8G8R8A8_SRGB
,
922 PIPE_FORMAT_A8R8G8B8_SRGB
,
923 PIPE_FORMAT_R8G8B8A8_SRGB
},
924 GL_TRUE
}, /* at least one format must be supported */
926 { { o(EXT_texture_sRGB_R8
) },
927 { PIPE_FORMAT_R8_SRGB
},
930 { { o(EXT_texture_type_2_10_10_10_REV
) },
931 { PIPE_FORMAT_R10G10B10A2_UNORM
,
932 PIPE_FORMAT_B10G10R10A2_UNORM
},
933 GL_TRUE
}, /* at least one format must be supported */
935 { { o(ATI_texture_compression_3dc
) },
936 { PIPE_FORMAT_LATC2_UNORM
} },
938 { { o(MESA_ycbcr_texture
) },
941 GL_TRUE
}, /* at least one format must be supported */
943 { { o(OES_compressed_ETC1_RGB8_texture
) },
944 { PIPE_FORMAT_ETC1_RGB8
,
945 PIPE_FORMAT_R8G8B8A8_UNORM
},
946 GL_TRUE
}, /* at least one format must be supported */
948 { { o(ARB_stencil_texturing
),
949 o(ARB_texture_stencil8
) },
950 { PIPE_FORMAT_X24S8_UINT
,
951 PIPE_FORMAT_S8X24_UINT
},
952 GL_TRUE
}, /* at least one format must be supported */
954 { { o(AMD_compressed_ATC_texture
) },
955 { PIPE_FORMAT_ATC_RGB
,
956 PIPE_FORMAT_ATC_RGBA_EXPLICIT
,
957 PIPE_FORMAT_ATC_RGBA_INTERPOLATED
} },
960 /* Required: vertex fetch support. */
961 static const struct st_extension_format_mapping vertex_mapping
[] = {
962 { { o(EXT_vertex_array_bgra
) },
963 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
964 { { o(ARB_vertex_type_2_10_10_10_rev
) },
965 { PIPE_FORMAT_R10G10B10A2_UNORM
,
966 PIPE_FORMAT_B10G10R10A2_UNORM
,
967 PIPE_FORMAT_R10G10B10A2_SNORM
,
968 PIPE_FORMAT_B10G10R10A2_SNORM
,
969 PIPE_FORMAT_R10G10B10A2_USCALED
,
970 PIPE_FORMAT_B10G10R10A2_USCALED
,
971 PIPE_FORMAT_R10G10B10A2_SSCALED
,
972 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
973 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
974 { PIPE_FORMAT_R11G11B10_FLOAT
} },
977 static const struct st_extension_format_mapping tbo_rgb32
[] = {
978 { {o(ARB_texture_buffer_object_rgb32
) },
979 { PIPE_FORMAT_R32G32B32_FLOAT
,
980 PIPE_FORMAT_R32G32B32_UINT
,
981 PIPE_FORMAT_R32G32B32_SINT
,
986 * Extensions that are supported by all Gallium drivers:
988 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
989 extensions
->ARB_depth_texture
= GL_TRUE
;
990 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
991 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
992 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
993 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
994 extensions
->ARB_fragment_program
= GL_TRUE
;
995 extensions
->ARB_fragment_program_shadow
= GL_TRUE
;
996 extensions
->ARB_fragment_shader
= GL_TRUE
;
997 extensions
->ARB_half_float_vertex
= GL_TRUE
;
998 extensions
->ARB_internalformat_query
= GL_TRUE
;
999 extensions
->ARB_internalformat_query2
= GL_TRUE
;
1000 extensions
->ARB_map_buffer_range
= GL_TRUE
;
1001 extensions
->ARB_shadow
= GL_TRUE
;
1002 extensions
->ARB_sync
= GL_TRUE
;
1003 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
1004 extensions
->ARB_texture_cube_map
= GL_TRUE
;
1005 extensions
->ARB_texture_env_combine
= GL_TRUE
;
1006 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
1007 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
1008 extensions
->ARB_vertex_program
= GL_TRUE
;
1009 extensions
->ARB_vertex_shader
= GL_TRUE
;
1011 extensions
->EXT_blend_color
= GL_TRUE
;
1012 extensions
->EXT_blend_func_separate
= GL_TRUE
;
1013 extensions
->EXT_blend_minmax
= GL_TRUE
;
1014 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
1015 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
1016 extensions
->EXT_point_parameters
= GL_TRUE
;
1017 extensions
->EXT_provoking_vertex
= GL_TRUE
;
1018 extensions
->EXT_stencil_two_side
= GL_TRUE
;
1019 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
1021 extensions
->ATI_fragment_shader
= GL_TRUE
;
1022 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
1024 extensions
->MESA_pack_invert
= GL_TRUE
;
1026 extensions
->NV_fog_distance
= GL_TRUE
;
1027 extensions
->NV_texture_env_combine4
= GL_TRUE
;
1028 extensions
->NV_texture_rectangle
= GL_TRUE
;
1030 extensions
->OES_EGL_image
= GL_TRUE
;
1031 extensions
->OES_EGL_image_external
= GL_TRUE
;
1032 extensions
->OES_draw_texture
= GL_TRUE
;
1034 /* Expose the extensions which directly correspond to gallium caps. */
1035 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
1036 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
1037 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
1041 /* Expose the extensions which directly correspond to gallium formats. */
1042 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
1043 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
1044 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
1045 init_format_extensions(screen
, extensions
, rt_blendable
,
1046 ARRAY_SIZE(rt_blendable
), PIPE_TEXTURE_2D
,
1047 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
|
1048 PIPE_BIND_BLENDABLE
);
1049 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
1050 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
1051 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
1052 init_format_extensions(screen
, extensions
, texture_mapping
,
1053 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
1054 PIPE_BIND_SAMPLER_VIEW
);
1055 init_format_extensions(screen
, extensions
, vertex_mapping
,
1056 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
1057 PIPE_BIND_VERTEX_BUFFER
);
1059 /* Figure out GLSL support and set GLSLVersion to it. */
1060 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
1061 consts
->GLSLVersionCompat
=
1062 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
1064 const unsigned ESSLVersion
=
1065 screen
->get_param(screen
, PIPE_CAP_ESSL_FEATURE_LEVEL
);
1066 const unsigned GLSLVersion
=
1067 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
1068 consts
->GLSLVersion
;
1070 _mesa_override_glsl_version(consts
);
1072 if (options
->force_glsl_version
> 0 &&
1073 options
->force_glsl_version
<= GLSLVersion
) {
1074 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
1077 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
1079 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
1081 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
1083 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
1085 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
1087 /* Technically we are turning on the EXT_gpu_shader5 extension,
1088 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1089 * switches on EXT_gpu_shader5:
1091 if (api
== API_OPENGLES2
&& ESSLVersion
>= 320)
1092 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1094 if (GLSLVersion
>= 400)
1095 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1096 if (GLSLVersion
>= 410)
1097 extensions
->ARB_shader_precision
= GL_TRUE
;
1099 /* This extension needs full OpenGL 3.2, but we don't know if that's
1100 * supported at this point. Only check the GLSL version. */
1101 if (GLSLVersion
>= 150 &&
1102 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
1103 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
1106 if (GLSLVersion
>= 140) {
1107 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1108 * we can always expose it if the driver can do 140. Supporting
1109 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1112 extensions
->EXT_gpu_shader4
= GL_TRUE
;
1113 extensions
->EXT_texture_buffer_object
= GL_TRUE
;
1115 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
1116 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
1119 if (GLSLVersion
>= 130) {
1120 consts
->NativeIntegers
= GL_TRUE
;
1121 consts
->MaxClipPlanes
= 8;
1123 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
1124 consts
->VertexID_is_zero_based
= GL_TRUE
;
1127 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1128 extensions
->ARB_conservative_depth
= GL_TRUE
;
1129 extensions
->ARB_shading_language_packing
= GL_TRUE
;
1130 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
1131 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
1132 extensions
->ARB_texture_query_levels
= GL_TRUE
;
1134 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
1136 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1137 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1138 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1140 /* Optional integer support for GLSL 1.2. */
1141 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1142 PIPE_SHADER_CAP_INTEGERS
) &&
1143 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1144 PIPE_SHADER_CAP_INTEGERS
)) {
1145 consts
->NativeIntegers
= GL_TRUE
;
1147 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1150 /* Integer textures make no sense before GLSL 1.30 */
1151 extensions
->EXT_texture_integer
= GL_FALSE
;
1154 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
1156 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1158 /* Below are the cases which cannot be moved into tables easily. */
1160 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1161 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1162 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1163 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1164 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1167 /* What this is really checking for is the ability to support multiple
1168 * invocations of a geometry shader. There is no separate cap for that, so
1169 * we check the GLSLVersion.
1171 if (GLSLVersion
>= 400 &&
1172 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1173 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1174 extensions
->OES_geometry_shader
= GL_TRUE
;
1177 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1178 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1180 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1181 extensions
->ARB_gpu_shader5
;
1183 /* Maximum sample count. */
1185 static const enum pipe_format color_formats
[] = {
1186 PIPE_FORMAT_R8G8B8A8_UNORM
,
1187 PIPE_FORMAT_B8G8R8A8_UNORM
,
1188 PIPE_FORMAT_A8R8G8B8_UNORM
,
1189 PIPE_FORMAT_A8B8G8R8_UNORM
,
1191 static const enum pipe_format depth_formats
[] = {
1192 PIPE_FORMAT_Z16_UNORM
,
1193 PIPE_FORMAT_Z24X8_UNORM
,
1194 PIPE_FORMAT_X8Z24_UNORM
,
1195 PIPE_FORMAT_Z32_UNORM
,
1196 PIPE_FORMAT_Z32_FLOAT
1198 static const enum pipe_format int_formats
[] = {
1199 PIPE_FORMAT_R8G8B8A8_SINT
1201 static const enum pipe_format void_formats
[] = {
1205 consts
->MaxSamples
=
1206 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1208 PIPE_BIND_RENDER_TARGET
);
1210 consts
->MaxImageSamples
=
1211 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1213 PIPE_BIND_SHADER_IMAGE
);
1215 consts
->MaxColorTextureSamples
=
1216 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1217 color_formats
, consts
->MaxSamples
,
1218 PIPE_BIND_SAMPLER_VIEW
);
1220 consts
->MaxDepthTextureSamples
=
1221 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1222 depth_formats
, consts
->MaxSamples
,
1223 PIPE_BIND_SAMPLER_VIEW
);
1225 consts
->MaxIntegerSamples
=
1226 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1227 int_formats
, consts
->MaxSamples
,
1228 PIPE_BIND_SAMPLER_VIEW
);
1230 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1231 consts
->MaxFramebufferSamples
=
1232 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1234 PIPE_BIND_RENDER_TARGET
);
1236 if (extensions
->AMD_framebuffer_multisample_advanced
) {
1237 /* AMD_framebuffer_multisample_advanced */
1238 /* This can be greater than storage samples. */
1239 consts
->MaxColorFramebufferSamples
=
1240 get_max_samples_for_formats_advanced(screen
,
1241 ARRAY_SIZE(color_formats
),
1244 PIPE_BIND_RENDER_TARGET
);
1246 /* If the driver supports N color samples, it means it supports
1247 * N samples and N storage samples. N samples >= N storage
1250 consts
->MaxColorFramebufferStorageSamples
= consts
->MaxSamples
;
1251 consts
->MaxDepthStencilFramebufferSamples
=
1252 consts
->MaxDepthTextureSamples
;
1254 assert(consts
->MaxColorFramebufferSamples
>=
1255 consts
->MaxDepthStencilFramebufferSamples
);
1256 assert(consts
->MaxDepthStencilFramebufferSamples
>=
1257 consts
->MaxColorFramebufferStorageSamples
);
1259 consts
->NumSupportedMultisampleModes
= 0;
1261 unsigned depth_samples_supported
= 0;
1263 for (unsigned samples
= 2;
1264 samples
<= consts
->MaxDepthStencilFramebufferSamples
;
1266 if (screen
->is_format_supported(screen
, PIPE_FORMAT_Z32_FLOAT
,
1267 PIPE_TEXTURE_2D
, samples
, samples
,
1268 PIPE_BIND_DEPTH_STENCIL
))
1269 depth_samples_supported
|= 1 << samples
;
1272 for (unsigned samples
= 2;
1273 samples
<= consts
->MaxColorFramebufferSamples
;
1275 for (unsigned depth_samples
= 2;
1276 depth_samples
<= samples
; depth_samples
++) {
1277 if (!(depth_samples_supported
& (1 << depth_samples
)))
1280 for (unsigned storage_samples
= 2;
1281 storage_samples
<= depth_samples
; storage_samples
++) {
1282 if (screen
->is_format_supported(screen
,
1283 PIPE_FORMAT_R8G8B8A8_UNORM
,
1287 PIPE_BIND_RENDER_TARGET
)) {
1288 unsigned i
= consts
->NumSupportedMultisampleModes
;
1290 assert(i
< ARRAY_SIZE(consts
->SupportedMultisampleModes
));
1291 consts
->SupportedMultisampleModes
[i
].NumColorSamples
=
1293 consts
->SupportedMultisampleModes
[i
].NumColorStorageSamples
=
1295 consts
->SupportedMultisampleModes
[i
].NumDepthStencilSamples
=
1297 consts
->NumSupportedMultisampleModes
++;
1305 if (consts
->MaxSamples
>= 2) {
1306 /* Real MSAA support */
1307 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1308 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1310 else if (consts
->MaxSamples
> 0 &&
1311 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1312 /* fake MSAA support */
1313 consts
->FakeSWMSAA
= GL_TRUE
;
1314 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1315 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1316 extensions
->ARB_texture_multisample
= GL_TRUE
;
1319 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1320 !options
->disable_blend_func_extended
)
1321 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1323 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1324 extensions
->ARB_timer_query
) {
1325 extensions
->EXT_timer_query
= GL_TRUE
;
1328 if (extensions
->ARB_transform_feedback2
&&
1329 extensions
->ARB_draw_instanced
) {
1330 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1332 if (options
->force_glsl_extensions_warn
)
1333 consts
->ForceGLSLExtensionsWarn
= 1;
1335 if (options
->disable_glsl_line_continuations
)
1336 consts
->DisableGLSLLineContinuations
= 1;
1338 if (options
->allow_glsl_extension_directive_midshader
)
1339 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1341 if (options
->allow_glsl_builtin_const_expression
)
1342 consts
->AllowGLSLBuiltinConstantExpression
= GL_TRUE
;
1344 if (options
->allow_glsl_relaxed_es
)
1345 consts
->AllowGLSLRelaxedES
= GL_TRUE
;
1347 if (options
->allow_glsl_layout_qualifier_on_function_parameters
)
1348 consts
->AllowLayoutQualifiersOnFunctionParameters
= GL_TRUE
;
1350 consts
->MinMapBufferAlignment
=
1351 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1353 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1354 if (api
== API_OPENGL_COMPAT
&&
1355 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1356 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1358 if (extensions
->ARB_texture_buffer_object
) {
1359 consts
->MaxTextureBufferSize
=
1360 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1362 consts
->TextureBufferOffsetAlignment
=
1363 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1365 if (consts
->TextureBufferOffsetAlignment
)
1366 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1368 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1369 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1370 PIPE_BIND_SAMPLER_VIEW
);
1373 extensions
->OES_texture_buffer
=
1374 extensions
->ARB_texture_buffer_object
&&
1375 extensions
->ARB_texture_buffer_range
&&
1376 extensions
->ARB_texture_buffer_object_rgb32
&&
1377 extensions
->ARB_shader_image_load_store
;
1379 extensions
->EXT_framebuffer_sRGB
=
1380 screen
->get_param(screen
, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL
) &&
1381 extensions
->EXT_sRGB
;
1383 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1384 * If the number of available texture indirections is very limited, then we
1385 * prefer to disable varying packing rather than run the risk of varying
1386 * packing preventing a shader from running.
1388 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1389 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1390 /* We can't disable varying packing if transform feedback is available,
1391 * because transform feedback code assumes a packed varying layout.
1393 if (!extensions
->EXT_transform_feedback
)
1394 consts
->DisableVaryingPacking
= GL_TRUE
;
1397 unsigned max_fb_fetch_rts
= screen
->get_param(screen
, PIPE_CAP_FBFETCH
);
1399 if (max_fb_fetch_rts
> 0) {
1400 extensions
->KHR_blend_equation_advanced
= true;
1402 if (max_fb_fetch_rts
>=
1403 screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
)) {
1404 extensions
->EXT_shader_framebuffer_fetch_non_coherent
= true;
1408 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1409 if (consts
->MaxViewports
>= 16) {
1410 if (GLSLVersion
>= 400) {
1411 consts
->ViewportBounds
.Min
= -32768.0;
1412 consts
->ViewportBounds
.Max
= 32767.0;
1414 consts
->ViewportBounds
.Min
= -16384.0;
1415 consts
->ViewportBounds
.Max
= 16383.0;
1417 extensions
->ARB_viewport_array
= GL_TRUE
;
1418 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1419 if (extensions
->AMD_vertex_shader_layer
)
1420 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1423 if (extensions
->AMD_vertex_shader_layer
&&
1424 extensions
->AMD_vertex_shader_viewport_index
&&
1425 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1426 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1428 /* ARB_framebuffer_no_attachments */
1429 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1430 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1431 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1432 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1433 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1435 /* GL_ARB_ES3_compatibility.
1436 * Check requirements for GLSL ES 3.00.
1438 if (GLSLVersion
>= 130 &&
1439 extensions
->ARB_uniform_buffer_object
&&
1440 extensions
->ARB_shader_bit_encoding
&&
1441 extensions
->NV_primitive_restart
&&
1442 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1443 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1444 /* Requirements for ETC2 emulation. */
1445 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1446 PIPE_TEXTURE_2D
, 0, 0,
1447 PIPE_BIND_SAMPLER_VIEW
) &&
1448 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_SRGB
,
1449 PIPE_TEXTURE_2D
, 0, 0,
1450 PIPE_BIND_SAMPLER_VIEW
) &&
1451 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1452 PIPE_TEXTURE_2D
, 0, 0,
1453 PIPE_BIND_SAMPLER_VIEW
) &&
1454 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1455 PIPE_TEXTURE_2D
, 0, 0,
1456 PIPE_BIND_SAMPLER_VIEW
) &&
1457 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1458 PIPE_TEXTURE_2D
, 0, 0,
1459 PIPE_BIND_SAMPLER_VIEW
) &&
1460 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1461 PIPE_TEXTURE_2D
, 0, 0,
1462 PIPE_BIND_SAMPLER_VIEW
)) {
1463 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1466 #ifdef HAVE_ST_VDPAU
1467 if (screen
->get_video_param
&&
1468 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1469 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1470 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1471 extensions
->NV_vdpau_interop
= GL_TRUE
;
1475 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1476 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1477 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1480 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1481 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1482 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1484 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1485 int compute_supported_irs
=
1486 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1487 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1488 if (compute_supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
1489 (1 << PIPE_SHADER_IR_NIR
))) {
1490 enum pipe_shader_ir ir
=
1491 (compute_supported_irs
& PIPE_SHADER_IR_NIR
) ?
1492 PIPE_SHADER_IR_NIR
: PIPE_SHADER_IR_TGSI
;
1493 uint64_t grid_size
[3], block_size
[3];
1494 uint64_t max_local_size
, max_threads_per_block
;
1496 screen
->get_compute_param(screen
, ir
,
1497 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1498 screen
->get_compute_param(screen
, ir
,
1499 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1500 screen
->get_compute_param(screen
, ir
,
1501 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1502 &max_threads_per_block
);
1503 screen
->get_compute_param(screen
, ir
,
1504 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1507 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1508 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1510 for (i
= 0; i
< 3; i
++) {
1511 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1512 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1515 extensions
->ARB_compute_shader
=
1516 extensions
->ARB_shader_image_load_store
&&
1517 extensions
->ARB_shader_atomic_counters
;
1519 if (extensions
->ARB_compute_shader
) {
1520 uint64_t max_variable_threads_per_block
= 0;
1522 screen
->get_compute_param(screen
, ir
,
1523 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1524 &max_variable_threads_per_block
);
1526 for (i
= 0; i
< 3; i
++) {
1527 /* Clamp the values to avoid having a local work group size
1528 * greater than the maximum number of invocations.
1530 consts
->MaxComputeVariableGroupSize
[i
] =
1531 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1532 max_variable_threads_per_block
);
1534 consts
->MaxComputeVariableGroupInvocations
=
1535 max_variable_threads_per_block
;
1537 extensions
->ARB_compute_variable_group_size
=
1538 max_variable_threads_per_block
> 0;
1543 extensions
->ARB_texture_float
=
1544 extensions
->OES_texture_half_float
&&
1545 extensions
->OES_texture_float
;
1547 if (extensions
->EXT_texture_filter_anisotropic
&&
1548 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1549 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1551 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1553 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1554 * there's no clean way of telling whether we would support ES 3.1 from
1555 * here, so copy the condition from compute_version_es2 here. A lot of
1556 * these are redunant, but simpler to just have a (near-)exact copy here.
1558 extensions
->ARB_ES3_1_compatibility
=
1559 extensions
->ARB_ES3_compatibility
&&
1560 extensions
->ARB_arrays_of_arrays
&&
1561 extensions
->ARB_compute_shader
&&
1562 extensions
->ARB_draw_indirect
&&
1563 extensions
->ARB_explicit_uniform_location
&&
1564 extensions
->ARB_framebuffer_no_attachments
&&
1565 extensions
->ARB_shader_atomic_counters
&&
1566 extensions
->ARB_shader_image_load_store
&&
1567 extensions
->ARB_shader_image_size
&&
1568 extensions
->ARB_shader_storage_buffer_object
&&
1569 extensions
->ARB_shading_language_packing
&&
1570 extensions
->ARB_stencil_texturing
&&
1571 extensions
->ARB_texture_multisample
&&
1572 extensions
->ARB_gpu_shader5
&&
1573 extensions
->EXT_shader_integer_mix
;
1575 extensions
->OES_texture_cube_map_array
=
1576 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1577 extensions
->OES_geometry_shader
&&
1578 extensions
->ARB_texture_cube_map_array
;
1580 extensions
->OES_viewport_array
=
1581 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1582 extensions
->OES_geometry_shader
&&
1583 extensions
->ARB_viewport_array
;
1585 extensions
->OES_primitive_bounding_box
=
1586 extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310;
1588 consts
->NoPrimitiveBoundingBoxOutput
= true;
1590 extensions
->ANDROID_extension_pack_es31a
=
1591 extensions
->KHR_texture_compression_astc_ldr
&&
1592 extensions
->KHR_blend_equation_advanced
&&
1593 extensions
->OES_sample_variables
&&
1594 extensions
->ARB_shader_image_load_store
&&
1595 extensions
->ARB_texture_stencil8
&&
1596 extensions
->ARB_texture_multisample
&&
1597 extensions
->OES_copy_image
&&
1598 extensions
->ARB_draw_buffers_blend
&&
1599 extensions
->OES_geometry_shader
&&
1600 extensions
->ARB_gpu_shader5
&&
1601 extensions
->OES_primitive_bounding_box
&&
1602 extensions
->ARB_tessellation_shader
&&
1603 extensions
->ARB_texture_border_clamp
&&
1604 extensions
->OES_texture_buffer
&&
1605 extensions
->OES_texture_cube_map_array
&&
1606 extensions
->EXT_texture_sRGB_decode
;
1608 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1609 * before overall versions are selected. Also it's actually a subset of ES
1610 * 3.2, since it doesn't require ASTC or advanced blending.
1612 extensions
->ARB_ES3_2_compatibility
=
1613 extensions
->ARB_ES3_1_compatibility
&&
1614 extensions
->KHR_robustness
&&
1615 extensions
->ARB_copy_image
&&
1616 extensions
->ARB_draw_buffers_blend
&&
1617 extensions
->ARB_draw_elements_base_vertex
&&
1618 extensions
->OES_geometry_shader
&&
1619 extensions
->ARB_gpu_shader5
&&
1620 extensions
->ARB_sample_shading
&&
1621 extensions
->ARB_tessellation_shader
&&
1622 extensions
->ARB_texture_border_clamp
&&
1623 extensions
->OES_texture_buffer
&&
1624 extensions
->ARB_texture_cube_map_array
&&
1625 extensions
->ARB_texture_stencil8
&&
1626 extensions
->ARB_texture_multisample
;
1628 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1629 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1630 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1632 bool pre_snap_triangles
, pre_snap_points_lines
;
1634 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1636 pre_snap_triangles
=
1637 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1638 pre_snap_points_lines
=
1639 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1641 extensions
->NV_conservative_raster
=
1642 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1644 if (extensions
->NV_conservative_raster
) {
1645 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1646 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1647 extensions
->NV_conservative_raster_pre_snap
=
1648 pre_snap_triangles
&& pre_snap_points_lines
;