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
)
86 c
->MaxTextureSize
= screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_SIZE
);
87 c
->MaxTextureSize
= MIN2(c
->MaxTextureSize
, 1 << (MAX_TEXTURE_LEVELS
- 1));
90 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
91 MAX_3D_TEXTURE_LEVELS
);
93 c
->MaxCubeTextureLevels
94 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
95 MAX_CUBE_TEXTURE_LEVELS
);
97 c
->MaxTextureRectSize
= _min(c
->MaxTextureSize
, MAX_TEXTURE_RECT_SIZE
);
99 c
->MaxArrayTextureLayers
100 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
102 /* Define max viewport size and max renderbuffer size in terms of
103 * max texture size (note: max tex RECT size = max tex 2D size).
104 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
106 c
->MaxViewportWidth
=
107 c
->MaxViewportHeight
=
108 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
111 screen
->get_param(screen
, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS
);
112 c
->ViewportSubpixelBits
=
113 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
115 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
116 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
117 1, MAX_DRAW_BUFFERS
);
119 c
->MaxDualSourceDrawBuffers
=
120 _clamp(screen
->get_param(screen
,
121 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
122 0, MAX_DRAW_BUFFERS
);
125 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
127 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
130 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
132 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
134 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
135 * for non-aa sizes, but we can go down to 0.0 for aa points.
137 c
->MinPointSize
= 1.0f
;
138 c
->MinPointSizeAA
= 0.0f
;
140 c
->MaxTextureMaxAnisotropy
=
142 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
144 c
->MaxTextureLodBias
=
145 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
147 c
->QuadsFollowProvokingVertexConvention
=
148 screen
->get_param(screen
,
149 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
151 c
->MaxUniformBlockSize
=
152 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
153 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
154 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
155 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
157 c
->MaxUniformBlockSize
= MIN2(c
->MaxUniformBlockSize
, INT_MAX
- 127);
159 if (c
->MaxUniformBlockSize
< 16384) {
163 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
164 struct gl_shader_compiler_options
*options
;
165 struct gl_program_constants
*pc
;
166 const nir_shader_compiler_options
*nir_options
= NULL
;
168 if (screen
->get_compiler_options
) {
169 nir_options
= (const nir_shader_compiler_options
*)
170 screen
->get_compiler_options(screen
, PIPE_SHADER_IR_NIR
, sh
);
173 const gl_shader_stage stage
= tgsi_processor_to_shader_stage(sh
);
174 pc
= &c
->Program
[stage
];
175 options
= &c
->ShaderCompilerOptions
[stage
];
176 c
->ShaderCompilerOptions
[stage
].NirOptions
= nir_options
;
178 if (sh
== PIPE_SHADER_COMPUTE
) {
179 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
182 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
183 if (!(supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
184 (1 << PIPE_SHADER_IR_NIR
))))
188 pc
->MaxTextureImageUnits
=
189 _min(screen
->get_shader_param(screen
, sh
,
190 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
191 MAX_TEXTURE_IMAGE_UNITS
);
193 pc
->MaxInstructions
=
194 pc
->MaxNativeInstructions
=
195 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
196 pc
->MaxAluInstructions
=
197 pc
->MaxNativeAluInstructions
=
198 screen
->get_shader_param(screen
, sh
,
199 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
200 pc
->MaxTexInstructions
=
201 pc
->MaxNativeTexInstructions
=
202 screen
->get_shader_param(screen
, sh
,
203 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
204 pc
->MaxTexIndirections
=
205 pc
->MaxNativeTexIndirections
=
206 screen
->get_shader_param(screen
, sh
,
207 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
209 pc
->MaxNativeAttribs
=
210 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
213 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
215 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
217 pc
->MaxUniformComponents
=
218 screen
->get_shader_param(screen
, sh
,
219 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / 4;
220 pc
->MaxUniformComponents
= MIN2(pc
->MaxUniformComponents
,
223 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
224 * This gives us a limit of 4096 values - but we may need to generate
225 * internal values in addition to what the source program uses. So, we
226 * drop the limit one step lower, to 2048, to be safe.
229 pc
->MaxNativeParameters
= MIN2(pc
->MaxUniformComponents
/ 4, 2048);
230 pc
->MaxInputComponents
=
231 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
232 pc
->MaxOutputComponents
=
233 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
236 pc
->MaxUniformBlocks
=
237 screen
->get_shader_param(screen
, sh
,
238 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
239 if (pc
->MaxUniformBlocks
)
240 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
241 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
243 pc
->MaxCombinedUniformComponents
=
244 pc
->MaxUniformComponents
+
245 (uint64_t)c
->MaxUniformBlockSize
/ 4 * pc
->MaxUniformBlocks
;
247 pc
->MaxShaderStorageBlocks
=
248 screen
->get_shader_param(screen
, sh
,
249 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
251 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
254 * for separate atomic counters get the actual hw limits
255 * per stage on atomic counters and buffers
257 pc
->MaxAtomicCounters
= temp
;
258 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
259 } else if (pc
->MaxShaderStorageBlocks
) {
260 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
262 * without separate atomic counters, reserve half of the available
263 * SSBOs for atomic buffers, and the other half for normal SSBOs.
265 pc
->MaxAtomicBuffers
= pc
->MaxShaderStorageBlocks
/ 2;
266 pc
->MaxShaderStorageBlocks
-= pc
->MaxAtomicBuffers
;
268 pc
->MaxImageUniforms
= screen
->get_shader_param(
269 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
271 /* Gallium doesn't really care about local vs. env parameters so use the
274 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
275 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
277 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
278 pc
->LowInt
.RangeMin
= 31;
279 pc
->LowInt
.RangeMax
= 30;
280 pc
->LowInt
.Precision
= 0;
281 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
284 /* TODO: make these more fine-grained if anyone needs it */
285 options
->MaxIfDepth
=
286 screen
->get_shader_param(screen
, sh
,
287 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
288 options
->EmitNoLoops
=
289 !screen
->get_shader_param(screen
, sh
,
290 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
291 options
->EmitNoMainReturn
=
292 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
294 options
->EmitNoCont
=
295 !screen
->get_shader_param(screen
, sh
,
296 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
298 options
->EmitNoIndirectInput
=
299 !screen
->get_shader_param(screen
, sh
,
300 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
301 options
->EmitNoIndirectOutput
=
302 !screen
->get_shader_param(screen
, sh
,
303 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
304 options
->EmitNoIndirectTemp
=
305 !screen
->get_shader_param(screen
, sh
,
306 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
307 options
->EmitNoIndirectUniform
=
308 !screen
->get_shader_param(screen
, sh
,
309 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
311 if (pc
->MaxNativeInstructions
&&
312 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
316 if (options
->EmitNoLoops
)
317 options
->MaxUnrollIterations
=
318 MIN2(screen
->get_shader_param(screen
, sh
,
319 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
322 options
->MaxUnrollIterations
=
323 screen
->get_shader_param(screen
, sh
,
324 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
326 if (!screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
))
327 options
->LowerCombinedClipCullDistance
= true;
329 bool prefer_nir
= PIPE_SHADER_IR_NIR
==
330 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_PREFERRED_IR
);
332 /* NIR can do the lowering on our behalf and we'll get better results
333 * because it can actually optimize SSBO access.
335 options
->LowerBufferInterfaceBlocks
= !prefer_nir
;
338 c
->MaxUserAssignableUniformLocations
=
339 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformComponents
+
340 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformComponents
+
341 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformComponents
+
342 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformComponents
+
343 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformComponents
;
345 c
->GLSLOptimizeConservatively
=
346 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
347 c
->GLSLTessLevelsAsInputs
=
348 screen
->get_param(screen
, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS
);
350 !screen
->get_param(screen
, PIPE_CAP_NIR_COMPACT_ARRAYS
);
351 c
->LowerCsDerivedVariables
=
352 !screen
->get_param(screen
, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED
);
353 c
->PrimitiveRestartForPatches
=
354 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
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
->GLSLPointCoordIsSysVal
=
448 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL
);
449 c
->GLSLFrontFacingIsSysVal
=
450 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
452 /* GL_ARB_get_program_binary */
453 if (screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
454 c
->NumProgramBinaryFormats
= 1;
456 c
->MaxAtomicBufferBindings
=
457 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
458 c
->MaxAtomicBufferSize
=
459 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
461 c
->MaxCombinedAtomicBuffers
=
462 MIN2(screen
->get_param(screen
,
463 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS
),
464 MAX_COMBINED_ATOMIC_BUFFERS
);
465 if (!c
->MaxCombinedAtomicBuffers
) {
466 c
->MaxCombinedAtomicBuffers
=
467 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
468 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
469 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
470 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
471 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
472 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
475 c
->MaxCombinedAtomicCounters
=
476 screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS
);
477 if (!c
->MaxCombinedAtomicCounters
)
478 c
->MaxCombinedAtomicCounters
= MAX_ATOMIC_COUNTERS
;
480 if (c
->MaxCombinedAtomicBuffers
> 0) {
481 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
482 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
485 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
486 c
->ShaderStorageBufferOffsetAlignment
=
487 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
488 if (c
->ShaderStorageBufferOffsetAlignment
) {
489 c
->MaxCombinedShaderStorageBlocks
=
490 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS
),
491 MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
492 if (!c
->MaxCombinedShaderStorageBlocks
) {
493 c
->MaxCombinedShaderStorageBlocks
=
494 c
->Program
[MESA_SHADER_VERTEX
].MaxShaderStorageBlocks
+
495 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxShaderStorageBlocks
+
496 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxShaderStorageBlocks
+
497 c
->Program
[MESA_SHADER_GEOMETRY
].MaxShaderStorageBlocks
+
498 c
->Program
[MESA_SHADER_FRAGMENT
].MaxShaderStorageBlocks
;
499 assert(c
->MaxCombinedShaderStorageBlocks
< MAX_COMBINED_SHADER_STORAGE_BUFFERS
);
501 c
->MaxShaderStorageBufferBindings
= c
->MaxCombinedShaderStorageBlocks
;
503 c
->MaxCombinedShaderOutputResources
+=
504 c
->MaxCombinedShaderStorageBlocks
;
505 c
->MaxShaderStorageBlockSize
=
506 screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_BUFFER_SIZE
);
507 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
510 c
->MaxCombinedImageUniforms
=
511 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
512 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
513 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
514 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
515 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
516 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
517 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
518 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
519 if (c
->MaxCombinedImageUniforms
) {
520 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
521 extensions
->ARB_shader_image_size
= GL_TRUE
;
524 /* ARB_framebuffer_no_attachments */
525 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
526 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
527 /* NOTE: we cheat here a little by assuming that
528 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
529 * number of layers as we need, although we technically
530 * could have more the generality is not really useful
533 c
->MaxFramebufferLayers
=
534 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
536 c
->MaxWindowRectangles
=
537 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
539 c
->SparseBufferPageSize
=
540 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
542 c
->AllowMappedBuffersDuringExecution
=
543 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
545 c
->UseSTD430AsDefaultPacking
=
546 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
548 c
->MaxSubpixelPrecisionBiasBits
=
549 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
551 c
->ConservativeRasterDilateRange
[0] =
552 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
553 c
->ConservativeRasterDilateRange
[1] =
554 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
555 c
->ConservativeRasterDilateGranularity
=
556 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
558 /* limit the max combined shader output resources to a driver limit */
559 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
560 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
561 c
->MaxCombinedShaderOutputResources
= temp
;
566 * Given a member \c x of struct gl_extensions, return offset of
569 #define o(x) offsetof(struct gl_extensions, x)
572 struct st_extension_cap_mapping
{
573 int extension_offset
;
577 struct st_extension_format_mapping
{
578 int extension_offset
[2];
579 enum pipe_format format
[32];
581 /* If TRUE, at least one format must be supported for the extensions to be
582 * advertised. If FALSE, all the formats must be supported. */
583 GLboolean need_at_least_one
;
587 * Enable extensions if certain pipe formats are supported by the driver.
588 * What extensions will be enabled and what formats must be supported is
589 * described by the array of st_extension_format_mapping.
591 * target and bind_flags are passed to is_format_supported.
594 init_format_extensions(struct pipe_screen
*screen
,
595 struct gl_extensions
*extensions
,
596 const struct st_extension_format_mapping
*mapping
,
597 unsigned num_mappings
,
598 enum pipe_texture_target target
,
601 GLboolean
*extension_table
= (GLboolean
*) extensions
;
604 int num_formats
= ARRAY_SIZE(mapping
->format
);
605 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
607 for (i
= 0; i
< num_mappings
; i
++) {
608 int num_supported
= 0;
610 /* Examine each format in the list. */
611 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
612 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
613 target
, 0, 0, bind_flags
)) {
618 if (!num_supported
||
619 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
623 /* Enable all extensions in the list. */
624 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
625 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
631 * Given a list of formats and bind flags, return the maximum number
632 * of samples supported by any of those formats.
635 get_max_samples_for_formats(struct pipe_screen
*screen
,
636 unsigned num_formats
,
637 const enum pipe_format
*formats
,
638 unsigned max_samples
,
643 for (i
= max_samples
; i
> 0; --i
) {
644 for (f
= 0; f
< num_formats
; f
++) {
645 if (screen
->is_format_supported(screen
, formats
[f
],
646 PIPE_TEXTURE_2D
, i
, i
, bind
)) {
655 get_max_samples_for_formats_advanced(struct pipe_screen
*screen
,
656 unsigned num_formats
,
657 const enum pipe_format
*formats
,
658 unsigned max_samples
,
659 unsigned num_storage_samples
,
664 for (i
= max_samples
; i
> 0; --i
) {
665 for (f
= 0; f
< num_formats
; f
++) {
666 if (screen
->is_format_supported(screen
, formats
[f
], PIPE_TEXTURE_2D
,
667 i
, num_storage_samples
, bind
)) {
676 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
677 * which GL extensions are supported.
678 * Quite a few extensions are always supported because they are standard
679 * features or can be built on top of other gallium features.
680 * Some fine tuning may still be needed.
682 void st_init_extensions(struct pipe_screen
*screen
,
683 struct gl_constants
*consts
,
684 struct gl_extensions
*extensions
,
685 struct st_config_options
*options
,
689 GLboolean
*extension_table
= (GLboolean
*) extensions
;
691 static const struct st_extension_cap_mapping cap_mapping
[] = {
692 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
693 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
694 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
695 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
696 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
697 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
698 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
699 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
700 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
701 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
702 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
703 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
704 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
705 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
706 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
707 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
708 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
709 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
710 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
711 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
712 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
713 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
714 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE
},
715 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
716 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
717 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
718 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
719 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
720 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
721 { o(ARB_sample_locations
), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS
},
722 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
723 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
724 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
725 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
726 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
727 { o(EXT_shader_image_load_formatted
), PIPE_CAP_IMAGE_LOAD_FORMATTED
},
728 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
729 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
730 { o(ARB_shader_texture_lod
), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD
},
731 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
732 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
733 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
734 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
735 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE
},
736 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
737 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
738 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
739 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
740 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
741 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
742 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
743 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
744 { o(ARB_fragment_shader_interlock
), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK
},
746 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
747 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
748 { o(EXT_disjoint_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
749 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
750 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
751 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
752 { o(EXT_multisampled_render_to_texture
), PIPE_CAP_SURFACE_SAMPLE_COUNT
},
753 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
754 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
755 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
756 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
757 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
758 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
759 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
760 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
762 { o(AMD_depth_clamp_separate
), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE
},
763 { o(AMD_framebuffer_multisample_advanced
), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS
},
764 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
765 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
766 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
767 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
768 { o(INTEL_conservative_rasterization
), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE
},
769 { o(INTEL_shader_atomic_float_minmax
), PIPE_CAP_ATOMIC_FLOAT_MINMAX
},
770 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
771 { o(NV_compute_shader_derivatives
), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES
},
772 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
773 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
774 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
775 { o(NV_shader_atomic_float
), PIPE_CAP_TGSI_ATOMFADD
},
776 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
777 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
778 /* GL_NV_point_sprite is not supported by gallium because we don't
779 * support the GL_POINT_SPRITE_R_MODE_NV option. */
781 { o(OES_standard_derivatives
), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES
},
782 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
783 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
784 { o(OES_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
787 /* Required: render target and sampler support */
788 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
789 { { o(OES_texture_float
) },
790 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
792 { { o(OES_texture_half_float
) },
793 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
795 { { o(ARB_texture_rgb10_a2ui
) },
796 { PIPE_FORMAT_R10G10B10A2_UINT
,
797 PIPE_FORMAT_B10G10R10A2_UINT
},
798 GL_TRUE
}, /* at least one format must be supported */
801 { PIPE_FORMAT_A8B8G8R8_SRGB
,
802 PIPE_FORMAT_B8G8R8A8_SRGB
,
803 PIPE_FORMAT_R8G8B8A8_SRGB
},
804 GL_TRUE
}, /* at least one format must be supported */
806 { { o(EXT_packed_float
) },
807 { PIPE_FORMAT_R11G11B10_FLOAT
} },
809 { { o(EXT_texture_integer
) },
810 { PIPE_FORMAT_R32G32B32A32_UINT
,
811 PIPE_FORMAT_R32G32B32A32_SINT
} },
813 { { o(ARB_texture_rg
) },
814 { PIPE_FORMAT_R8_UNORM
,
815 PIPE_FORMAT_R8G8_UNORM
} },
817 { { o(EXT_render_snorm
) },
818 { PIPE_FORMAT_R8_SNORM
,
819 PIPE_FORMAT_R8G8_SNORM
,
820 PIPE_FORMAT_R8G8B8A8_SNORM
,
821 PIPE_FORMAT_R16_SNORM
,
822 PIPE_FORMAT_R16G16_SNORM
,
823 PIPE_FORMAT_R16G16B16A16_SNORM
} },
826 /* Required: render target, sampler, and blending */
827 static const struct st_extension_format_mapping rt_blendable
[] = {
828 { { o(EXT_float_blend
) },
829 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
832 /* Required: depth stencil and sampler support */
833 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
834 { { o(ARB_depth_buffer_float
) },
835 { PIPE_FORMAT_Z32_FLOAT
,
836 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
839 /* Required: sampler support */
840 static const struct st_extension_format_mapping texture_mapping
[] = {
841 { { o(ARB_texture_compression_rgtc
) },
842 { PIPE_FORMAT_RGTC1_UNORM
,
843 PIPE_FORMAT_RGTC1_SNORM
,
844 PIPE_FORMAT_RGTC2_UNORM
,
845 PIPE_FORMAT_RGTC2_SNORM
} },
847 { { o(EXT_texture_compression_latc
) },
848 { PIPE_FORMAT_LATC1_UNORM
,
849 PIPE_FORMAT_LATC1_SNORM
,
850 PIPE_FORMAT_LATC2_UNORM
,
851 PIPE_FORMAT_LATC2_SNORM
} },
853 { { o(EXT_texture_compression_s3tc
),
854 o(ANGLE_texture_compression_dxt
) },
855 { PIPE_FORMAT_DXT1_RGB
,
856 PIPE_FORMAT_DXT1_RGBA
,
857 PIPE_FORMAT_DXT3_RGBA
,
858 PIPE_FORMAT_DXT5_RGBA
} },
860 { { o(EXT_texture_compression_s3tc_srgb
) },
861 { PIPE_FORMAT_DXT1_SRGB
,
862 PIPE_FORMAT_DXT1_SRGBA
,
863 PIPE_FORMAT_DXT3_SRGBA
,
864 PIPE_FORMAT_DXT5_SRGBA
} },
866 { { o(ARB_texture_compression_bptc
) },
867 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
868 PIPE_FORMAT_BPTC_SRGBA
,
869 PIPE_FORMAT_BPTC_RGB_FLOAT
,
870 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
872 { { o(KHR_texture_compression_astc_ldr
),
873 o(KHR_texture_compression_astc_sliced_3d
) },
874 { PIPE_FORMAT_ASTC_4x4
,
875 PIPE_FORMAT_ASTC_5x4
,
876 PIPE_FORMAT_ASTC_5x5
,
877 PIPE_FORMAT_ASTC_6x5
,
878 PIPE_FORMAT_ASTC_6x6
,
879 PIPE_FORMAT_ASTC_8x5
,
880 PIPE_FORMAT_ASTC_8x6
,
881 PIPE_FORMAT_ASTC_8x8
,
882 PIPE_FORMAT_ASTC_10x5
,
883 PIPE_FORMAT_ASTC_10x6
,
884 PIPE_FORMAT_ASTC_10x8
,
885 PIPE_FORMAT_ASTC_10x10
,
886 PIPE_FORMAT_ASTC_12x10
,
887 PIPE_FORMAT_ASTC_12x12
,
888 PIPE_FORMAT_ASTC_4x4_SRGB
,
889 PIPE_FORMAT_ASTC_5x4_SRGB
,
890 PIPE_FORMAT_ASTC_5x5_SRGB
,
891 PIPE_FORMAT_ASTC_6x5_SRGB
,
892 PIPE_FORMAT_ASTC_6x6_SRGB
,
893 PIPE_FORMAT_ASTC_8x5_SRGB
,
894 PIPE_FORMAT_ASTC_8x6_SRGB
,
895 PIPE_FORMAT_ASTC_8x8_SRGB
,
896 PIPE_FORMAT_ASTC_10x5_SRGB
,
897 PIPE_FORMAT_ASTC_10x6_SRGB
,
898 PIPE_FORMAT_ASTC_10x8_SRGB
,
899 PIPE_FORMAT_ASTC_10x10_SRGB
,
900 PIPE_FORMAT_ASTC_12x10_SRGB
,
901 PIPE_FORMAT_ASTC_12x12_SRGB
} },
903 /* ASTC software fallback support. */
904 { { o(KHR_texture_compression_astc_ldr
),
905 o(KHR_texture_compression_astc_sliced_3d
) },
906 { PIPE_FORMAT_R8G8B8A8_UNORM
,
907 PIPE_FORMAT_R8G8B8A8_SRGB
} },
909 { { o(EXT_texture_shared_exponent
) },
910 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
912 { { o(EXT_texture_snorm
) },
913 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
915 { { o(EXT_texture_sRGB
),
916 o(EXT_texture_sRGB_decode
) },
917 { PIPE_FORMAT_A8B8G8R8_SRGB
,
918 PIPE_FORMAT_B8G8R8A8_SRGB
,
919 PIPE_FORMAT_A8R8G8B8_SRGB
,
920 PIPE_FORMAT_R8G8B8A8_SRGB
},
921 GL_TRUE
}, /* at least one format must be supported */
923 { { o(EXT_texture_sRGB_R8
) },
924 { PIPE_FORMAT_R8_SRGB
},
927 { { o(EXT_texture_type_2_10_10_10_REV
) },
928 { PIPE_FORMAT_R10G10B10A2_UNORM
,
929 PIPE_FORMAT_B10G10R10A2_UNORM
},
930 GL_TRUE
}, /* at least one format must be supported */
932 { { o(ATI_texture_compression_3dc
) },
933 { PIPE_FORMAT_LATC2_UNORM
} },
935 { { o(MESA_ycbcr_texture
) },
938 GL_TRUE
}, /* at least one format must be supported */
940 { { o(OES_compressed_ETC1_RGB8_texture
) },
941 { PIPE_FORMAT_ETC1_RGB8
,
942 PIPE_FORMAT_R8G8B8A8_UNORM
},
943 GL_TRUE
}, /* at least one format must be supported */
945 { { o(ARB_stencil_texturing
),
946 o(ARB_texture_stencil8
) },
947 { PIPE_FORMAT_X24S8_UINT
,
948 PIPE_FORMAT_S8X24_UINT
},
949 GL_TRUE
}, /* at least one format must be supported */
951 { { o(AMD_compressed_ATC_texture
) },
952 { PIPE_FORMAT_ATC_RGB
,
953 PIPE_FORMAT_ATC_RGBA_EXPLICIT
,
954 PIPE_FORMAT_ATC_RGBA_INTERPOLATED
} },
957 /* Required: vertex fetch support. */
958 static const struct st_extension_format_mapping vertex_mapping
[] = {
959 { { o(EXT_vertex_array_bgra
) },
960 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
961 { { o(ARB_vertex_type_2_10_10_10_rev
) },
962 { PIPE_FORMAT_R10G10B10A2_UNORM
,
963 PIPE_FORMAT_B10G10R10A2_UNORM
,
964 PIPE_FORMAT_R10G10B10A2_SNORM
,
965 PIPE_FORMAT_B10G10R10A2_SNORM
,
966 PIPE_FORMAT_R10G10B10A2_USCALED
,
967 PIPE_FORMAT_B10G10R10A2_USCALED
,
968 PIPE_FORMAT_R10G10B10A2_SSCALED
,
969 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
970 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
971 { PIPE_FORMAT_R11G11B10_FLOAT
} },
974 static const struct st_extension_format_mapping tbo_rgb32
[] = {
975 { {o(ARB_texture_buffer_object_rgb32
) },
976 { PIPE_FORMAT_R32G32B32_FLOAT
,
977 PIPE_FORMAT_R32G32B32_UINT
,
978 PIPE_FORMAT_R32G32B32_SINT
,
983 * Extensions that are supported by all Gallium drivers:
985 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
986 extensions
->ARB_depth_texture
= GL_TRUE
;
987 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
988 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
989 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
990 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
991 extensions
->ARB_fragment_program
= GL_TRUE
;
992 extensions
->ARB_fragment_program_shadow
= GL_TRUE
;
993 extensions
->ARB_fragment_shader
= GL_TRUE
;
994 extensions
->ARB_half_float_vertex
= GL_TRUE
;
995 extensions
->ARB_internalformat_query
= GL_TRUE
;
996 extensions
->ARB_internalformat_query2
= GL_TRUE
;
997 extensions
->ARB_map_buffer_range
= GL_TRUE
;
998 extensions
->ARB_shadow
= GL_TRUE
;
999 extensions
->ARB_sync
= GL_TRUE
;
1000 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
1001 extensions
->ARB_texture_cube_map
= GL_TRUE
;
1002 extensions
->ARB_texture_env_combine
= GL_TRUE
;
1003 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
1004 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
1005 extensions
->ARB_vertex_program
= GL_TRUE
;
1006 extensions
->ARB_vertex_shader
= GL_TRUE
;
1008 extensions
->EXT_blend_color
= GL_TRUE
;
1009 extensions
->EXT_blend_func_separate
= GL_TRUE
;
1010 extensions
->EXT_blend_minmax
= GL_TRUE
;
1011 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
1012 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
1013 extensions
->EXT_point_parameters
= GL_TRUE
;
1014 extensions
->EXT_provoking_vertex
= GL_TRUE
;
1015 extensions
->EXT_stencil_two_side
= GL_TRUE
;
1016 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
1018 extensions
->ATI_fragment_shader
= GL_TRUE
;
1019 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
1021 extensions
->MESA_pack_invert
= GL_TRUE
;
1023 extensions
->NV_fog_distance
= GL_TRUE
;
1024 extensions
->NV_texture_env_combine4
= GL_TRUE
;
1025 extensions
->NV_texture_rectangle
= GL_TRUE
;
1027 extensions
->OES_EGL_image
= GL_TRUE
;
1028 extensions
->OES_EGL_image_external
= GL_TRUE
;
1029 extensions
->OES_draw_texture
= GL_TRUE
;
1031 /* Expose the extensions which directly correspond to gallium caps. */
1032 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
1033 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
1034 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
1038 /* Expose the extensions which directly correspond to gallium formats. */
1039 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
1040 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
1041 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
1042 init_format_extensions(screen
, extensions
, rt_blendable
,
1043 ARRAY_SIZE(rt_blendable
), PIPE_TEXTURE_2D
,
1044 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
|
1045 PIPE_BIND_BLENDABLE
);
1046 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
1047 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
1048 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
1049 init_format_extensions(screen
, extensions
, texture_mapping
,
1050 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
1051 PIPE_BIND_SAMPLER_VIEW
);
1052 init_format_extensions(screen
, extensions
, vertex_mapping
,
1053 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
1054 PIPE_BIND_VERTEX_BUFFER
);
1056 /* Figure out GLSL support and set GLSLVersion to it. */
1057 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
1058 consts
->GLSLVersionCompat
=
1059 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
1061 const unsigned ESSLVersion
=
1062 screen
->get_param(screen
, PIPE_CAP_ESSL_FEATURE_LEVEL
);
1063 const unsigned GLSLVersion
=
1064 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
1065 consts
->GLSLVersion
;
1067 _mesa_override_glsl_version(consts
);
1069 if (options
->force_glsl_version
> 0 &&
1070 options
->force_glsl_version
<= GLSLVersion
) {
1071 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
1074 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
1076 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
1078 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
1080 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
1082 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
1084 /* Technically we are turning on the EXT_gpu_shader5 extension,
1085 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1086 * switches on EXT_gpu_shader5:
1088 if (api
== API_OPENGLES2
&& ESSLVersion
>= 320)
1089 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1091 if (GLSLVersion
>= 400)
1092 extensions
->ARB_gpu_shader5
= GL_TRUE
;
1093 if (GLSLVersion
>= 410)
1094 extensions
->ARB_shader_precision
= GL_TRUE
;
1096 /* This extension needs full OpenGL 3.2, but we don't know if that's
1097 * supported at this point. Only check the GLSL version. */
1098 if (GLSLVersion
>= 150 &&
1099 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
1100 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
1103 if (GLSLVersion
>= 140) {
1104 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1105 * we can always expose it if the driver can do 140. Supporting
1106 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1109 extensions
->EXT_gpu_shader4
= GL_TRUE
;
1110 extensions
->EXT_texture_buffer_object
= GL_TRUE
;
1112 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
1113 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
1116 if (GLSLVersion
>= 130) {
1117 consts
->NativeIntegers
= GL_TRUE
;
1118 consts
->MaxClipPlanes
= 8;
1120 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
1121 consts
->VertexID_is_zero_based
= GL_TRUE
;
1124 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1125 extensions
->ARB_conservative_depth
= GL_TRUE
;
1126 extensions
->ARB_shading_language_packing
= GL_TRUE
;
1127 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
1128 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
1129 extensions
->ARB_texture_query_levels
= GL_TRUE
;
1131 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
1133 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1134 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1135 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1137 /* Optional integer support for GLSL 1.2. */
1138 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1139 PIPE_SHADER_CAP_INTEGERS
) &&
1140 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1141 PIPE_SHADER_CAP_INTEGERS
)) {
1142 consts
->NativeIntegers
= GL_TRUE
;
1144 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1147 /* Integer textures make no sense before GLSL 1.30 */
1148 extensions
->EXT_texture_integer
= GL_FALSE
;
1151 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
1153 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1155 /* Below are the cases which cannot be moved into tables easily. */
1157 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1158 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1159 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1160 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1161 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1164 /* What this is really checking for is the ability to support multiple
1165 * invocations of a geometry shader. There is no separate cap for that, so
1166 * we check the GLSLVersion.
1168 if (GLSLVersion
>= 400 &&
1169 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1170 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1171 extensions
->OES_geometry_shader
= GL_TRUE
;
1174 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1175 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1177 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1178 extensions
->ARB_gpu_shader5
;
1180 /* Maximum sample count. */
1182 static const enum pipe_format color_formats
[] = {
1183 PIPE_FORMAT_R8G8B8A8_UNORM
,
1184 PIPE_FORMAT_B8G8R8A8_UNORM
,
1185 PIPE_FORMAT_A8R8G8B8_UNORM
,
1186 PIPE_FORMAT_A8B8G8R8_UNORM
,
1188 static const enum pipe_format depth_formats
[] = {
1189 PIPE_FORMAT_Z16_UNORM
,
1190 PIPE_FORMAT_Z24X8_UNORM
,
1191 PIPE_FORMAT_X8Z24_UNORM
,
1192 PIPE_FORMAT_Z32_UNORM
,
1193 PIPE_FORMAT_Z32_FLOAT
1195 static const enum pipe_format int_formats
[] = {
1196 PIPE_FORMAT_R8G8B8A8_SINT
1198 static const enum pipe_format void_formats
[] = {
1202 consts
->MaxSamples
=
1203 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1205 PIPE_BIND_RENDER_TARGET
);
1207 consts
->MaxImageSamples
=
1208 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1210 PIPE_BIND_SHADER_IMAGE
);
1212 consts
->MaxColorTextureSamples
=
1213 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1214 color_formats
, consts
->MaxSamples
,
1215 PIPE_BIND_SAMPLER_VIEW
);
1217 consts
->MaxDepthTextureSamples
=
1218 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1219 depth_formats
, consts
->MaxSamples
,
1220 PIPE_BIND_SAMPLER_VIEW
);
1222 consts
->MaxIntegerSamples
=
1223 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1224 int_formats
, consts
->MaxSamples
,
1225 PIPE_BIND_SAMPLER_VIEW
);
1227 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1228 consts
->MaxFramebufferSamples
=
1229 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1231 PIPE_BIND_RENDER_TARGET
);
1233 if (extensions
->AMD_framebuffer_multisample_advanced
) {
1234 /* AMD_framebuffer_multisample_advanced */
1235 /* This can be greater than storage samples. */
1236 consts
->MaxColorFramebufferSamples
=
1237 get_max_samples_for_formats_advanced(screen
,
1238 ARRAY_SIZE(color_formats
),
1241 PIPE_BIND_RENDER_TARGET
);
1243 /* If the driver supports N color samples, it means it supports
1244 * N samples and N storage samples. N samples >= N storage
1247 consts
->MaxColorFramebufferStorageSamples
= consts
->MaxSamples
;
1248 consts
->MaxDepthStencilFramebufferSamples
=
1249 consts
->MaxDepthTextureSamples
;
1251 assert(consts
->MaxColorFramebufferSamples
>=
1252 consts
->MaxDepthStencilFramebufferSamples
);
1253 assert(consts
->MaxDepthStencilFramebufferSamples
>=
1254 consts
->MaxColorFramebufferStorageSamples
);
1256 consts
->NumSupportedMultisampleModes
= 0;
1258 unsigned depth_samples_supported
= 0;
1260 for (unsigned samples
= 2;
1261 samples
<= consts
->MaxDepthStencilFramebufferSamples
;
1263 if (screen
->is_format_supported(screen
, PIPE_FORMAT_Z32_FLOAT
,
1264 PIPE_TEXTURE_2D
, samples
, samples
,
1265 PIPE_BIND_DEPTH_STENCIL
))
1266 depth_samples_supported
|= 1 << samples
;
1269 for (unsigned samples
= 2;
1270 samples
<= consts
->MaxColorFramebufferSamples
;
1272 for (unsigned depth_samples
= 2;
1273 depth_samples
<= samples
; depth_samples
++) {
1274 if (!(depth_samples_supported
& (1 << depth_samples
)))
1277 for (unsigned storage_samples
= 2;
1278 storage_samples
<= depth_samples
; storage_samples
++) {
1279 if (screen
->is_format_supported(screen
,
1280 PIPE_FORMAT_R8G8B8A8_UNORM
,
1284 PIPE_BIND_RENDER_TARGET
)) {
1285 unsigned i
= consts
->NumSupportedMultisampleModes
;
1287 assert(i
< ARRAY_SIZE(consts
->SupportedMultisampleModes
));
1288 consts
->SupportedMultisampleModes
[i
].NumColorSamples
=
1290 consts
->SupportedMultisampleModes
[i
].NumColorStorageSamples
=
1292 consts
->SupportedMultisampleModes
[i
].NumDepthStencilSamples
=
1294 consts
->NumSupportedMultisampleModes
++;
1302 if (consts
->MaxSamples
>= 2) {
1303 /* Real MSAA support */
1304 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1305 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1307 else if (consts
->MaxSamples
> 0 &&
1308 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1309 /* fake MSAA support */
1310 consts
->FakeSWMSAA
= GL_TRUE
;
1311 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1312 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1313 extensions
->ARB_texture_multisample
= GL_TRUE
;
1316 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1317 !options
->disable_blend_func_extended
)
1318 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1320 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1321 extensions
->ARB_timer_query
) {
1322 extensions
->EXT_timer_query
= GL_TRUE
;
1325 if (extensions
->ARB_transform_feedback2
&&
1326 extensions
->ARB_draw_instanced
) {
1327 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1329 if (options
->force_glsl_extensions_warn
)
1330 consts
->ForceGLSLExtensionsWarn
= 1;
1332 if (options
->disable_glsl_line_continuations
)
1333 consts
->DisableGLSLLineContinuations
= 1;
1335 if (options
->allow_glsl_extension_directive_midshader
)
1336 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1338 if (options
->allow_glsl_builtin_const_expression
)
1339 consts
->AllowGLSLBuiltinConstantExpression
= GL_TRUE
;
1341 if (options
->allow_glsl_relaxed_es
)
1342 consts
->AllowGLSLRelaxedES
= GL_TRUE
;
1344 if (options
->allow_glsl_layout_qualifier_on_function_parameters
)
1345 consts
->AllowLayoutQualifiersOnFunctionParameters
= GL_TRUE
;
1347 consts
->MinMapBufferAlignment
=
1348 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1350 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1351 if (api
== API_OPENGL_COMPAT
&&
1352 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1353 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1355 if (extensions
->ARB_texture_buffer_object
) {
1356 consts
->MaxTextureBufferSize
=
1357 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1359 consts
->TextureBufferOffsetAlignment
=
1360 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1362 if (consts
->TextureBufferOffsetAlignment
)
1363 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1365 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1366 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1367 PIPE_BIND_SAMPLER_VIEW
);
1370 extensions
->OES_texture_buffer
=
1371 extensions
->ARB_texture_buffer_object
&&
1372 extensions
->ARB_texture_buffer_range
&&
1373 extensions
->ARB_texture_buffer_object_rgb32
&&
1374 extensions
->ARB_shader_image_load_store
;
1376 extensions
->EXT_framebuffer_sRGB
=
1377 screen
->get_param(screen
, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL
) &&
1378 extensions
->EXT_sRGB
;
1380 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1381 * If the number of available texture indirections is very limited, then we
1382 * prefer to disable varying packing rather than run the risk of varying
1383 * packing preventing a shader from running.
1385 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1386 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1387 /* We can't disable varying packing if transform feedback is available,
1388 * because transform feedback code assumes a packed varying layout.
1390 if (!extensions
->EXT_transform_feedback
)
1391 consts
->DisableVaryingPacking
= GL_TRUE
;
1394 unsigned max_fb_fetch_rts
= screen
->get_param(screen
, PIPE_CAP_FBFETCH
);
1395 bool coherent_fb_fetch
=
1396 screen
->get_param(screen
, PIPE_CAP_FBFETCH_COHERENT
);
1398 if (max_fb_fetch_rts
> 0) {
1399 extensions
->KHR_blend_equation_advanced
= true;
1400 extensions
->KHR_blend_equation_advanced_coherent
= coherent_fb_fetch
;
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;
1405 extensions
->EXT_shader_framebuffer_fetch
= coherent_fb_fetch
;
1409 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1410 if (consts
->MaxViewports
>= 16) {
1411 if (GLSLVersion
>= 400) {
1412 consts
->ViewportBounds
.Min
= -32768.0;
1413 consts
->ViewportBounds
.Max
= 32767.0;
1415 consts
->ViewportBounds
.Min
= -16384.0;
1416 consts
->ViewportBounds
.Max
= 16383.0;
1418 extensions
->ARB_viewport_array
= GL_TRUE
;
1419 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1420 if (extensions
->AMD_vertex_shader_layer
)
1421 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1424 if (extensions
->AMD_vertex_shader_layer
&&
1425 extensions
->AMD_vertex_shader_viewport_index
&&
1426 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1427 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1429 /* ARB_framebuffer_no_attachments */
1430 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1431 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1432 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1433 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1434 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1436 /* GL_ARB_ES3_compatibility.
1437 * Check requirements for GLSL ES 3.00.
1439 if (GLSLVersion
>= 130 &&
1440 extensions
->ARB_uniform_buffer_object
&&
1441 extensions
->ARB_shader_bit_encoding
&&
1442 extensions
->NV_primitive_restart
&&
1443 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1444 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1445 /* Requirements for ETC2 emulation. */
1446 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1447 PIPE_TEXTURE_2D
, 0, 0,
1448 PIPE_BIND_SAMPLER_VIEW
) &&
1449 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_SRGB
,
1450 PIPE_TEXTURE_2D
, 0, 0,
1451 PIPE_BIND_SAMPLER_VIEW
) &&
1452 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1453 PIPE_TEXTURE_2D
, 0, 0,
1454 PIPE_BIND_SAMPLER_VIEW
) &&
1455 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1456 PIPE_TEXTURE_2D
, 0, 0,
1457 PIPE_BIND_SAMPLER_VIEW
) &&
1458 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1459 PIPE_TEXTURE_2D
, 0, 0,
1460 PIPE_BIND_SAMPLER_VIEW
) &&
1461 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1462 PIPE_TEXTURE_2D
, 0, 0,
1463 PIPE_BIND_SAMPLER_VIEW
)) {
1464 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1467 #ifdef HAVE_ST_VDPAU
1468 if (screen
->get_video_param
&&
1469 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1470 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1471 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1472 extensions
->NV_vdpau_interop
= GL_TRUE
;
1476 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1477 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1478 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1481 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1482 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1483 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1485 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1486 int compute_supported_irs
=
1487 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1488 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1489 if (compute_supported_irs
& ((1 << PIPE_SHADER_IR_TGSI
) |
1490 (1 << PIPE_SHADER_IR_NIR
))) {
1491 enum pipe_shader_ir ir
=
1492 (compute_supported_irs
& PIPE_SHADER_IR_NIR
) ?
1493 PIPE_SHADER_IR_NIR
: PIPE_SHADER_IR_TGSI
;
1494 uint64_t grid_size
[3], block_size
[3];
1495 uint64_t max_local_size
, max_threads_per_block
;
1497 screen
->get_compute_param(screen
, ir
,
1498 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1499 screen
->get_compute_param(screen
, ir
,
1500 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1501 screen
->get_compute_param(screen
, ir
,
1502 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1503 &max_threads_per_block
);
1504 screen
->get_compute_param(screen
, ir
,
1505 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1508 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1509 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1511 for (i
= 0; i
< 3; i
++) {
1512 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1513 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1516 extensions
->ARB_compute_shader
=
1517 extensions
->ARB_shader_image_load_store
&&
1518 extensions
->ARB_shader_atomic_counters
;
1520 if (extensions
->ARB_compute_shader
) {
1521 uint64_t max_variable_threads_per_block
= 0;
1523 screen
->get_compute_param(screen
, ir
,
1524 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1525 &max_variable_threads_per_block
);
1527 for (i
= 0; i
< 3; i
++) {
1528 /* Clamp the values to avoid having a local work group size
1529 * greater than the maximum number of invocations.
1531 consts
->MaxComputeVariableGroupSize
[i
] =
1532 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1533 max_variable_threads_per_block
);
1535 consts
->MaxComputeVariableGroupInvocations
=
1536 max_variable_threads_per_block
;
1538 extensions
->ARB_compute_variable_group_size
=
1539 max_variable_threads_per_block
> 0;
1544 extensions
->ARB_texture_float
=
1545 extensions
->OES_texture_half_float
&&
1546 extensions
->OES_texture_float
;
1548 if (extensions
->EXT_texture_filter_anisotropic
&&
1549 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1550 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1552 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1554 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1555 * there's no clean way of telling whether we would support ES 3.1 from
1556 * here, so copy the condition from compute_version_es2 here. A lot of
1557 * these are redunant, but simpler to just have a (near-)exact copy here.
1559 extensions
->ARB_ES3_1_compatibility
=
1560 extensions
->ARB_ES3_compatibility
&&
1561 extensions
->ARB_arrays_of_arrays
&&
1562 extensions
->ARB_compute_shader
&&
1563 extensions
->ARB_draw_indirect
&&
1564 extensions
->ARB_explicit_uniform_location
&&
1565 extensions
->ARB_framebuffer_no_attachments
&&
1566 extensions
->ARB_shader_atomic_counters
&&
1567 extensions
->ARB_shader_image_load_store
&&
1568 extensions
->ARB_shader_image_size
&&
1569 extensions
->ARB_shader_storage_buffer_object
&&
1570 extensions
->ARB_shading_language_packing
&&
1571 extensions
->ARB_stencil_texturing
&&
1572 extensions
->ARB_texture_multisample
&&
1573 extensions
->ARB_gpu_shader5
&&
1574 extensions
->EXT_shader_integer_mix
;
1576 extensions
->OES_texture_cube_map_array
=
1577 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1578 extensions
->OES_geometry_shader
&&
1579 extensions
->ARB_texture_cube_map_array
;
1581 extensions
->OES_viewport_array
=
1582 (extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310) &&
1583 extensions
->OES_geometry_shader
&&
1584 extensions
->ARB_viewport_array
;
1586 extensions
->OES_primitive_bounding_box
=
1587 extensions
->ARB_ES3_1_compatibility
|| ESSLVersion
>= 310;
1589 consts
->NoPrimitiveBoundingBoxOutput
= true;
1591 extensions
->ANDROID_extension_pack_es31a
=
1592 extensions
->KHR_texture_compression_astc_ldr
&&
1593 extensions
->KHR_blend_equation_advanced
&&
1594 extensions
->OES_sample_variables
&&
1595 extensions
->ARB_shader_image_load_store
&&
1596 extensions
->ARB_texture_stencil8
&&
1597 extensions
->ARB_texture_multisample
&&
1598 extensions
->OES_copy_image
&&
1599 extensions
->ARB_draw_buffers_blend
&&
1600 extensions
->OES_geometry_shader
&&
1601 extensions
->ARB_gpu_shader5
&&
1602 extensions
->OES_primitive_bounding_box
&&
1603 extensions
->ARB_tessellation_shader
&&
1604 extensions
->ARB_texture_border_clamp
&&
1605 extensions
->OES_texture_buffer
&&
1606 extensions
->OES_texture_cube_map_array
&&
1607 extensions
->EXT_texture_sRGB_decode
;
1609 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1610 * before overall versions are selected. Also it's actually a subset of ES
1611 * 3.2, since it doesn't require ASTC or advanced blending.
1613 extensions
->ARB_ES3_2_compatibility
=
1614 extensions
->ARB_ES3_1_compatibility
&&
1615 extensions
->KHR_robustness
&&
1616 extensions
->ARB_copy_image
&&
1617 extensions
->ARB_draw_buffers_blend
&&
1618 extensions
->ARB_draw_elements_base_vertex
&&
1619 extensions
->OES_geometry_shader
&&
1620 extensions
->ARB_gpu_shader5
&&
1621 extensions
->ARB_sample_shading
&&
1622 extensions
->ARB_tessellation_shader
&&
1623 extensions
->ARB_texture_border_clamp
&&
1624 extensions
->OES_texture_buffer
&&
1625 extensions
->ARB_texture_cube_map_array
&&
1626 extensions
->ARB_texture_stencil8
&&
1627 extensions
->ARB_texture_multisample
;
1629 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1630 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1631 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1633 bool pre_snap_triangles
, pre_snap_points_lines
;
1635 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1637 pre_snap_triangles
=
1638 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1639 pre_snap_points_lines
=
1640 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1642 extensions
->NV_conservative_raster
=
1643 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1645 if (extensions
->NV_conservative_raster
) {
1646 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1647 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1648 extensions
->NV_conservative_raster_pre_snap
=
1649 pre_snap_triangles
&& pre_snap_points_lines
;