1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #include "compiler/nir/nir.h"
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/version.h"
36 #include "pipe/p_context.h"
37 #include "pipe/p_defines.h"
38 #include "pipe/p_screen.h"
39 #include "tgsi/tgsi_from_mesa.h"
40 #include "util/u_math.h"
42 #include "st_context.h"
44 #include "st_extensions.h"
45 #include "st_format.h"
49 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
50 * avoid evaluating arguments (which are often function calls) more than once.
53 static unsigned _min(unsigned a
, unsigned b
)
55 return (a
< b
) ? a
: b
;
58 static float _maxf(float a
, float b
)
60 return (a
> b
) ? a
: b
;
63 static int _clamp(int a
, int min
, int max
)
75 * Query driver to get implementation limits.
76 * Note that we have to limit/clamp against Mesa's internal limits too.
78 void st_init_limits(struct pipe_screen
*screen
,
79 struct gl_constants
*c
, struct gl_extensions
*extensions
,
84 boolean can_ubo
= TRUE
;
86 bool ssbo_atomic
= true;
89 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_LEVELS
),
93 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
94 MAX_3D_TEXTURE_LEVELS
);
96 c
->MaxCubeTextureLevels
97 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
98 MAX_CUBE_TEXTURE_LEVELS
);
100 c
->MaxTextureRectSize
101 = _min(1 << (c
->MaxTextureLevels
- 1), MAX_TEXTURE_RECT_SIZE
);
103 c
->MaxArrayTextureLayers
104 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
106 /* Define max viewport size and max renderbuffer size in terms of
107 * max texture size (note: max tex RECT size = max tex 2D size).
108 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
110 c
->MaxViewportWidth
=
111 c
->MaxViewportHeight
=
112 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
114 c
->ViewportSubpixelBits
=
115 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
117 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
118 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
119 1, MAX_DRAW_BUFFERS
);
121 c
->MaxDualSourceDrawBuffers
=
122 _clamp(screen
->get_param(screen
,
123 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
124 0, MAX_DRAW_BUFFERS
);
127 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
129 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
132 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
134 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
136 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
137 * for non-aa sizes, but we can go down to 0.0 for aa points.
139 c
->MinPointSize
= 1.0f
;
140 c
->MinPointSizeAA
= 0.0f
;
142 c
->MaxTextureMaxAnisotropy
=
144 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
146 c
->MaxTextureLodBias
=
147 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
149 c
->QuadsFollowProvokingVertexConvention
=
150 screen
->get_param(screen
,
151 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
153 c
->MaxUniformBlockSize
=
154 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
155 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
156 if (c
->MaxUniformBlockSize
< 16384) {
160 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
161 struct gl_shader_compiler_options
*options
;
162 struct gl_program_constants
*pc
;
163 const nir_shader_compiler_options
*nir_options
= NULL
;
165 if (screen
->get_compiler_options
) {
166 nir_options
= (const nir_shader_compiler_options
*)
167 screen
->get_compiler_options(screen
, PIPE_SHADER_IR_NIR
, sh
);
170 const gl_shader_stage stage
= tgsi_processor_to_shader_stage(sh
);
171 pc
= &c
->Program
[stage
];
172 options
= &c
->ShaderCompilerOptions
[stage
];
173 c
->ShaderCompilerOptions
[stage
].NirOptions
= nir_options
;
175 if (sh
== PIPE_SHADER_COMPUTE
) {
176 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
179 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
180 if (!(supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)))
184 pc
->MaxTextureImageUnits
=
185 _min(screen
->get_shader_param(screen
, sh
,
186 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
187 MAX_TEXTURE_IMAGE_UNITS
);
189 pc
->MaxInstructions
=
190 pc
->MaxNativeInstructions
=
191 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
192 pc
->MaxAluInstructions
=
193 pc
->MaxNativeAluInstructions
=
194 screen
->get_shader_param(screen
, sh
,
195 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
196 pc
->MaxTexInstructions
=
197 pc
->MaxNativeTexInstructions
=
198 screen
->get_shader_param(screen
, sh
,
199 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
200 pc
->MaxTexIndirections
=
201 pc
->MaxNativeTexIndirections
=
202 screen
->get_shader_param(screen
, sh
,
203 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
205 pc
->MaxNativeAttribs
=
206 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
209 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
211 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
213 pc
->MaxNativeParameters
=
214 screen
->get_shader_param(screen
, sh
,
215 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / sizeof(float[4]);
216 pc
->MaxInputComponents
=
217 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
218 pc
->MaxOutputComponents
=
219 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
221 pc
->MaxUniformComponents
=
222 4 * MIN2(pc
->MaxNativeParameters
, MAX_UNIFORMS
);
224 pc
->MaxUniformBlocks
=
225 screen
->get_shader_param(screen
, sh
,
226 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
227 if (pc
->MaxUniformBlocks
)
228 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
229 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
231 pc
->MaxCombinedUniformComponents
= (pc
->MaxUniformComponents
+
232 c
->MaxUniformBlockSize
/ 4 *
233 pc
->MaxUniformBlocks
);
235 temp
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS
);
238 * for separate atomic counters get the actual hw limits
239 * per stage on atomic counters and buffers
242 pc
->MaxAtomicCounters
= temp
;
243 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS
);
244 pc
->MaxShaderStorageBlocks
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
);
246 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
247 pc
->MaxAtomicBuffers
= screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_BUFFERS
) / 2;
248 pc
->MaxShaderStorageBlocks
= pc
->MaxAtomicBuffers
;
250 pc
->MaxImageUniforms
= screen
->get_shader_param(
251 screen
, sh
, PIPE_SHADER_CAP_MAX_SHADER_IMAGES
);
253 /* Gallium doesn't really care about local vs. env parameters so use the
256 pc
->MaxLocalParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_LOCAL_PARAMS
);
257 pc
->MaxEnvParams
= MIN2(pc
->MaxParameters
, MAX_PROGRAM_ENV_PARAMS
);
259 if (screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_INTEGERS
)) {
260 pc
->LowInt
.RangeMin
= 31;
261 pc
->LowInt
.RangeMax
= 30;
262 pc
->LowInt
.Precision
= 0;
263 pc
->MediumInt
= pc
->HighInt
= pc
->LowInt
;
266 /* TODO: make these more fine-grained if anyone needs it */
267 options
->MaxIfDepth
=
268 screen
->get_shader_param(screen
, sh
,
269 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
270 options
->EmitNoLoops
=
271 !screen
->get_shader_param(screen
, sh
,
272 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH
);
273 options
->EmitNoMainReturn
=
274 !screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUBROUTINES
);
276 options
->EmitNoCont
=
277 !screen
->get_shader_param(screen
, sh
,
278 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED
);
280 options
->EmitNoIndirectInput
=
281 !screen
->get_shader_param(screen
, sh
,
282 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR
);
283 options
->EmitNoIndirectOutput
=
284 !screen
->get_shader_param(screen
, sh
,
285 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR
);
286 options
->EmitNoIndirectTemp
=
287 !screen
->get_shader_param(screen
, sh
,
288 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR
);
289 options
->EmitNoIndirectUniform
=
290 !screen
->get_shader_param(screen
, sh
,
291 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR
);
293 if (pc
->MaxNativeInstructions
&&
294 (options
->EmitNoIndirectUniform
|| pc
->MaxUniformBlocks
< 12)) {
298 if (options
->EmitNoLoops
)
299 options
->MaxUnrollIterations
=
300 MIN2(screen
->get_shader_param(screen
, sh
,
301 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
),
304 options
->MaxUnrollIterations
=
305 screen
->get_shader_param(screen
, sh
,
306 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
);
308 options
->LowerCombinedClipCullDistance
= true;
309 options
->LowerBufferInterfaceBlocks
= true;
312 c
->GLSLOptimizeConservatively
=
313 screen
->get_param(screen
, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY
);
314 c
->LowerTessLevel
= true;
315 c
->LowerCsDerivedVariables
= true;
316 c
->PrimitiveRestartForPatches
=
317 screen
->get_param(screen
, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES
);
319 c
->MaxCombinedTextureImageUnits
=
320 _min(c
->Program
[MESA_SHADER_VERTEX
].MaxTextureImageUnits
+
321 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxTextureImageUnits
+
322 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxTextureImageUnits
+
323 c
->Program
[MESA_SHADER_GEOMETRY
].MaxTextureImageUnits
+
324 c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
+
325 c
->Program
[MESA_SHADER_COMPUTE
].MaxTextureImageUnits
,
326 MAX_COMBINED_TEXTURE_IMAGE_UNITS
);
328 /* This depends on program constants. */
329 c
->MaxTextureCoordUnits
330 = _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
331 MAX_TEXTURE_COORD_UNITS
);
334 _min(c
->Program
[MESA_SHADER_FRAGMENT
].MaxTextureImageUnits
,
335 c
->MaxTextureCoordUnits
);
337 c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
=
338 MIN2(c
->Program
[MESA_SHADER_VERTEX
].MaxAttribs
, 16);
340 /* PIPE_SHADER_CAP_MAX_INPUTS for the FS specifies the maximum number
341 * of inputs. It's always 2 colors + N generic inputs. */
342 c
->MaxVarying
= screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
343 PIPE_SHADER_CAP_MAX_INPUTS
);
344 c
->MaxVarying
= MIN2(c
->MaxVarying
, MAX_VARYING
);
345 c
->MaxGeometryOutputVertices
=
346 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES
);
347 c
->MaxGeometryTotalOutputComponents
=
348 screen
->get_param(screen
, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS
);
349 c
->MaxTessPatchComponents
=
350 MIN2(screen
->get_param(screen
, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS
),
353 c
->MinProgramTexelOffset
=
354 screen
->get_param(screen
, PIPE_CAP_MIN_TEXEL_OFFSET
);
355 c
->MaxProgramTexelOffset
=
356 screen
->get_param(screen
, PIPE_CAP_MAX_TEXEL_OFFSET
);
358 c
->MaxProgramTextureGatherComponents
=
359 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
);
360 c
->MinProgramTextureGatherOffset
=
361 screen
->get_param(screen
, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET
);
362 c
->MaxProgramTextureGatherOffset
=
363 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET
);
365 c
->MaxTransformFeedbackBuffers
=
366 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
);
367 c
->MaxTransformFeedbackBuffers
= MIN2(c
->MaxTransformFeedbackBuffers
,
368 MAX_FEEDBACK_BUFFERS
);
369 c
->MaxTransformFeedbackSeparateComponents
=
370 screen
->get_param(screen
, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS
);
371 c
->MaxTransformFeedbackInterleavedComponents
=
372 screen
->get_param(screen
,
373 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS
);
374 c
->MaxVertexStreams
=
375 MAX2(1, screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_STREAMS
));
377 /* The vertex stream must fit into pipe_stream_output_info::stream */
378 assert(c
->MaxVertexStreams
<= 4);
380 c
->MaxVertexAttribStride
381 = screen
->get_param(screen
, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE
);
383 c
->StripTextureBorder
= GL_TRUE
;
385 c
->GLSLSkipStrictMaxUniformLimitCheck
=
386 screen
->get_param(screen
, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS
);
388 c
->UniformBufferOffsetAlignment
=
389 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
392 extensions
->ARB_uniform_buffer_object
= GL_TRUE
;
393 c
->MaxCombinedUniformBlocks
= c
->MaxUniformBufferBindings
=
394 c
->Program
[MESA_SHADER_VERTEX
].MaxUniformBlocks
+
395 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxUniformBlocks
+
396 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxUniformBlocks
+
397 c
->Program
[MESA_SHADER_GEOMETRY
].MaxUniformBlocks
+
398 c
->Program
[MESA_SHADER_FRAGMENT
].MaxUniformBlocks
+
399 c
->Program
[MESA_SHADER_COMPUTE
].MaxUniformBlocks
;
400 assert(c
->MaxCombinedUniformBlocks
<= MAX_COMBINED_UNIFORM_BUFFERS
);
403 c
->GLSLFragCoordIsSysVal
=
404 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL
);
405 c
->GLSLFrontFacingIsSysVal
=
406 screen
->get_param(screen
, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL
);
408 /* GL_ARB_get_program_binary
410 * The QT framework has a bug in their shader program cache, which is built
411 * on GL_ARB_get_program_binary. In an effort to allow them to fix the bug
412 * we don't enable more than 1 binary format for compatibility profiles.
414 if (api
!= API_OPENGL_COMPAT
&&
415 screen
->get_disk_shader_cache
&& screen
->get_disk_shader_cache(screen
))
416 c
->NumProgramBinaryFormats
= 1;
418 c
->MaxAtomicBufferBindings
=
419 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
422 /* for separate atomic buffers - there atomic buffer size will be
424 c
->MaxAtomicBufferSize
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
* ATOMIC_COUNTER_SIZE
;
425 /* on all HW with separate atomic (evergreen) the following
426 lines are true. not sure it's worth adding CAPs for this at this
428 c
->MaxCombinedAtomicCounters
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicCounters
;
429 c
->MaxCombinedAtomicBuffers
= c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
431 c
->MaxCombinedAtomicBuffers
=
432 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
433 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
434 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
435 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
436 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
437 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
440 if (c
->MaxCombinedAtomicBuffers
> 0) {
441 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
442 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
445 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
446 c
->ShaderStorageBufferOffsetAlignment
=
447 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
448 if (c
->ShaderStorageBufferOffsetAlignment
) {
449 /* for hw atomic counters leaves these at default for now */
451 c
->MaxCombinedShaderStorageBlocks
= c
->MaxShaderStorageBufferBindings
=
452 c
->MaxCombinedAtomicBuffers
;
453 c
->MaxCombinedShaderOutputResources
+=
454 c
->MaxCombinedShaderStorageBlocks
;
455 c
->MaxShaderStorageBlockSize
= 1 << 27;
456 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
459 c
->MaxCombinedImageUniforms
=
460 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
461 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
462 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
463 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
464 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
465 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
466 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
467 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
468 if (c
->MaxCombinedImageUniforms
) {
469 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
470 extensions
->ARB_shader_image_size
= GL_TRUE
;
473 /* ARB_framebuffer_no_attachments */
474 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
475 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
476 /* NOTE: we cheat here a little by assuming that
477 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
478 * number of layers as we need, although we technically
479 * could have more the generality is not really useful
482 c
->MaxFramebufferLayers
=
483 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
485 c
->MaxWindowRectangles
=
486 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
488 c
->SparseBufferPageSize
=
489 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
491 c
->AllowMappedBuffersDuringExecution
=
492 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
494 c
->UseSTD430AsDefaultPacking
=
495 screen
->get_param(screen
, PIPE_CAP_LOAD_CONSTBUF
);
497 c
->MaxSubpixelPrecisionBiasBits
=
498 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
);
500 c
->ConservativeRasterDilateRange
[0] =
501 screen
->get_paramf(screen
, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE
);
502 c
->ConservativeRasterDilateRange
[1] =
503 screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
504 c
->ConservativeRasterDilateGranularity
=
505 screen
->get_paramf(screen
, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY
);
507 /* limit the max combined shader output resources to a driver limit */
508 temp
= screen
->get_param(screen
, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES
);
509 if (temp
> 0 && c
->MaxCombinedShaderOutputResources
> temp
)
510 c
->MaxCombinedShaderOutputResources
= temp
;
515 * Given a member \c x of struct gl_extensions, return offset of
518 #define o(x) offsetof(struct gl_extensions, x)
521 struct st_extension_cap_mapping
{
522 int extension_offset
;
526 struct st_extension_format_mapping
{
527 int extension_offset
[2];
528 enum pipe_format format
[32];
530 /* If TRUE, at least one format must be supported for the extensions to be
531 * advertised. If FALSE, all the formats must be supported. */
532 GLboolean need_at_least_one
;
536 * Enable extensions if certain pipe formats are supported by the driver.
537 * What extensions will be enabled and what formats must be supported is
538 * described by the array of st_extension_format_mapping.
540 * target and bind_flags are passed to is_format_supported.
543 init_format_extensions(struct pipe_screen
*screen
,
544 struct gl_extensions
*extensions
,
545 const struct st_extension_format_mapping
*mapping
,
546 unsigned num_mappings
,
547 enum pipe_texture_target target
,
550 GLboolean
*extension_table
= (GLboolean
*) extensions
;
553 int num_formats
= ARRAY_SIZE(mapping
->format
);
554 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
556 for (i
= 0; i
< num_mappings
; i
++) {
557 int num_supported
= 0;
559 /* Examine each format in the list. */
560 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
561 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
562 target
, 0, bind_flags
)) {
567 if (!num_supported
||
568 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
572 /* Enable all extensions in the list. */
573 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
574 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
580 * Given a list of formats and bind flags, return the maximum number
581 * of samples supported by any of those formats.
584 get_max_samples_for_formats(struct pipe_screen
*screen
,
585 unsigned num_formats
,
586 const enum pipe_format
*formats
,
587 unsigned max_samples
,
592 for (i
= max_samples
; i
> 0; --i
) {
593 for (f
= 0; f
< num_formats
; f
++) {
594 if (screen
->is_format_supported(screen
, formats
[f
],
595 PIPE_TEXTURE_2D
, i
, bind
)) {
605 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
606 * which GL extensions are supported.
607 * Quite a few extensions are always supported because they are standard
608 * features or can be built on top of other gallium features.
609 * Some fine tuning may still be needed.
611 void st_init_extensions(struct pipe_screen
*screen
,
612 struct gl_constants
*consts
,
613 struct gl_extensions
*extensions
,
614 struct st_config_options
*options
,
618 GLboolean
*extension_table
= (GLboolean
*) extensions
;
620 static const struct st_extension_cap_mapping cap_mapping
[] = {
621 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
622 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
623 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
624 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
625 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
626 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
627 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
628 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
629 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
630 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
631 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
632 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
633 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
634 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
635 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
636 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
637 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
638 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
639 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
640 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
641 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
642 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
643 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
644 { o(ARB_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
645 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
646 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
647 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
648 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
649 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
650 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
651 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
652 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
653 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
654 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
655 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
656 { o(ARB_shader_texture_lod
), PIPE_CAP_SM3
},
657 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
658 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
659 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
660 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
661 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
662 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
663 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
664 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
665 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
666 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
667 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
668 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
669 { o(ARB_transform_feedback_overflow_query
), PIPE_CAP_QUERY_SO_OVERFLOW
},
671 { o(KHR_blend_equation_advanced
), PIPE_CAP_TGSI_FS_FBFETCH
},
673 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
674 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
675 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
676 { o(EXT_memory_object
), PIPE_CAP_MEMOBJ
},
677 { o(EXT_memory_object_fd
), PIPE_CAP_MEMOBJ
},
678 { o(EXT_semaphore
), PIPE_CAP_FENCE_SIGNAL
},
679 { o(EXT_semaphore_fd
), PIPE_CAP_FENCE_SIGNAL
},
680 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
681 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
682 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
683 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
684 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
685 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
687 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
688 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
689 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
690 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
691 { o(MESA_tile_raster_order
), PIPE_CAP_TILE_RASTER_ORDER
},
692 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
693 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
694 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
695 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
696 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
697 /* GL_NV_point_sprite is not supported by gallium because we don't
698 * support the GL_POINT_SPRITE_R_MODE_NV option. */
700 { o(OES_standard_derivatives
), PIPE_CAP_SM3
},
701 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
702 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
705 /* Required: render target and sampler support */
706 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
707 { { o(ARB_texture_float
) },
708 { PIPE_FORMAT_R32G32B32A32_FLOAT
,
709 PIPE_FORMAT_R16G16B16A16_FLOAT
} },
711 { { o(OES_texture_float
) },
712 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
714 { { o(OES_texture_half_float
) },
715 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
717 { { o(ARB_texture_rgb10_a2ui
) },
718 { PIPE_FORMAT_R10G10B10A2_UINT
,
719 PIPE_FORMAT_B10G10R10A2_UINT
},
720 GL_TRUE
}, /* at least one format must be supported */
722 { { o(EXT_framebuffer_sRGB
) },
723 { PIPE_FORMAT_A8B8G8R8_SRGB
,
724 PIPE_FORMAT_B8G8R8A8_SRGB
,
725 PIPE_FORMAT_R8G8B8A8_SRGB
},
726 GL_TRUE
}, /* at least one format must be supported */
728 { { o(EXT_packed_float
) },
729 { PIPE_FORMAT_R11G11B10_FLOAT
} },
731 { { o(EXT_texture_integer
) },
732 { PIPE_FORMAT_R32G32B32A32_UINT
,
733 PIPE_FORMAT_R32G32B32A32_SINT
} },
735 { { o(ARB_texture_rg
) },
736 { PIPE_FORMAT_R8_UNORM
,
737 PIPE_FORMAT_R8G8_UNORM
} },
740 /* Required: depth stencil and sampler support */
741 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
742 { { o(ARB_depth_buffer_float
) },
743 { PIPE_FORMAT_Z32_FLOAT
,
744 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
747 /* Required: sampler support */
748 static const struct st_extension_format_mapping texture_mapping
[] = {
749 { { o(ARB_texture_compression_rgtc
) },
750 { PIPE_FORMAT_RGTC1_UNORM
,
751 PIPE_FORMAT_RGTC1_SNORM
,
752 PIPE_FORMAT_RGTC2_UNORM
,
753 PIPE_FORMAT_RGTC2_SNORM
} },
755 { { o(EXT_texture_compression_latc
) },
756 { PIPE_FORMAT_LATC1_UNORM
,
757 PIPE_FORMAT_LATC1_SNORM
,
758 PIPE_FORMAT_LATC2_UNORM
,
759 PIPE_FORMAT_LATC2_SNORM
} },
761 { { o(EXT_texture_compression_s3tc
),
762 o(ANGLE_texture_compression_dxt
) },
763 { PIPE_FORMAT_DXT1_RGB
,
764 PIPE_FORMAT_DXT1_RGBA
,
765 PIPE_FORMAT_DXT3_RGBA
,
766 PIPE_FORMAT_DXT5_RGBA
} },
768 { { o(ARB_texture_compression_bptc
) },
769 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
770 PIPE_FORMAT_BPTC_SRGBA
,
771 PIPE_FORMAT_BPTC_RGB_FLOAT
,
772 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
774 { { o(KHR_texture_compression_astc_ldr
) },
775 { PIPE_FORMAT_ASTC_4x4
,
776 PIPE_FORMAT_ASTC_5x4
,
777 PIPE_FORMAT_ASTC_5x5
,
778 PIPE_FORMAT_ASTC_6x5
,
779 PIPE_FORMAT_ASTC_6x6
,
780 PIPE_FORMAT_ASTC_8x5
,
781 PIPE_FORMAT_ASTC_8x6
,
782 PIPE_FORMAT_ASTC_8x8
,
783 PIPE_FORMAT_ASTC_10x5
,
784 PIPE_FORMAT_ASTC_10x6
,
785 PIPE_FORMAT_ASTC_10x8
,
786 PIPE_FORMAT_ASTC_10x10
,
787 PIPE_FORMAT_ASTC_12x10
,
788 PIPE_FORMAT_ASTC_12x12
,
789 PIPE_FORMAT_ASTC_4x4_SRGB
,
790 PIPE_FORMAT_ASTC_5x4_SRGB
,
791 PIPE_FORMAT_ASTC_5x5_SRGB
,
792 PIPE_FORMAT_ASTC_6x5_SRGB
,
793 PIPE_FORMAT_ASTC_6x6_SRGB
,
794 PIPE_FORMAT_ASTC_8x5_SRGB
,
795 PIPE_FORMAT_ASTC_8x6_SRGB
,
796 PIPE_FORMAT_ASTC_8x8_SRGB
,
797 PIPE_FORMAT_ASTC_10x5_SRGB
,
798 PIPE_FORMAT_ASTC_10x6_SRGB
,
799 PIPE_FORMAT_ASTC_10x8_SRGB
,
800 PIPE_FORMAT_ASTC_10x10_SRGB
,
801 PIPE_FORMAT_ASTC_12x10_SRGB
,
802 PIPE_FORMAT_ASTC_12x12_SRGB
} },
804 { { o(EXT_texture_shared_exponent
) },
805 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
807 { { o(EXT_texture_snorm
) },
808 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
810 { { o(EXT_texture_sRGB
),
811 o(EXT_texture_sRGB_decode
) },
812 { PIPE_FORMAT_A8B8G8R8_SRGB
,
813 PIPE_FORMAT_B8G8R8A8_SRGB
},
814 GL_TRUE
}, /* at least one format must be supported */
816 { { o(EXT_texture_type_2_10_10_10_REV
) },
817 { PIPE_FORMAT_R10G10B10A2_UNORM
,
818 PIPE_FORMAT_B10G10R10A2_UNORM
},
819 GL_TRUE
}, /* at least one format must be supported */
821 { { o(ATI_texture_compression_3dc
) },
822 { PIPE_FORMAT_LATC2_UNORM
} },
824 { { o(MESA_ycbcr_texture
) },
827 GL_TRUE
}, /* at least one format must be supported */
829 { { o(OES_compressed_ETC1_RGB8_texture
) },
830 { PIPE_FORMAT_ETC1_RGB8
,
831 PIPE_FORMAT_R8G8B8A8_UNORM
},
832 GL_TRUE
}, /* at least one format must be supported */
834 { { o(ARB_stencil_texturing
),
835 o(ARB_texture_stencil8
) },
836 { PIPE_FORMAT_X24S8_UINT
,
837 PIPE_FORMAT_S8X24_UINT
},
838 GL_TRUE
}, /* at least one format must be supported */
841 /* Required: vertex fetch support. */
842 static const struct st_extension_format_mapping vertex_mapping
[] = {
843 { { o(EXT_vertex_array_bgra
) },
844 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
845 { { o(ARB_vertex_type_2_10_10_10_rev
) },
846 { PIPE_FORMAT_R10G10B10A2_UNORM
,
847 PIPE_FORMAT_B10G10R10A2_UNORM
,
848 PIPE_FORMAT_R10G10B10A2_SNORM
,
849 PIPE_FORMAT_B10G10R10A2_SNORM
,
850 PIPE_FORMAT_R10G10B10A2_USCALED
,
851 PIPE_FORMAT_B10G10R10A2_USCALED
,
852 PIPE_FORMAT_R10G10B10A2_SSCALED
,
853 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
854 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
855 { PIPE_FORMAT_R11G11B10_FLOAT
} },
858 static const struct st_extension_format_mapping tbo_rgb32
[] = {
859 { {o(ARB_texture_buffer_object_rgb32
) },
860 { PIPE_FORMAT_R32G32B32_FLOAT
,
861 PIPE_FORMAT_R32G32B32_UINT
,
862 PIPE_FORMAT_R32G32B32_SINT
,
867 * Extensions that are supported by all Gallium drivers:
869 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
870 extensions
->ARB_depth_texture
= GL_TRUE
;
871 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
872 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
873 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
874 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
875 extensions
->ARB_fragment_program
= GL_TRUE
;
876 extensions
->ARB_fragment_program_shadow
= GL_TRUE
;
877 extensions
->ARB_fragment_shader
= GL_TRUE
;
878 extensions
->ARB_half_float_vertex
= GL_TRUE
;
879 extensions
->ARB_internalformat_query
= GL_TRUE
;
880 extensions
->ARB_internalformat_query2
= GL_TRUE
;
881 extensions
->ARB_map_buffer_range
= GL_TRUE
;
882 extensions
->ARB_shadow
= GL_TRUE
;
883 extensions
->ARB_sync
= GL_TRUE
;
884 extensions
->ARB_texture_border_clamp
= GL_TRUE
;
885 extensions
->ARB_texture_cube_map
= GL_TRUE
;
886 extensions
->ARB_texture_env_combine
= GL_TRUE
;
887 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
888 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
889 extensions
->ARB_vertex_program
= GL_TRUE
;
890 extensions
->ARB_vertex_shader
= GL_TRUE
;
892 extensions
->EXT_blend_color
= GL_TRUE
;
893 extensions
->EXT_blend_func_separate
= GL_TRUE
;
894 extensions
->EXT_blend_minmax
= GL_TRUE
;
895 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
896 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
897 extensions
->EXT_point_parameters
= GL_TRUE
;
898 extensions
->EXT_provoking_vertex
= GL_TRUE
;
899 extensions
->EXT_stencil_two_side
= GL_TRUE
;
900 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
902 extensions
->ATI_fragment_shader
= GL_TRUE
;
903 extensions
->ATI_separate_stencil
= GL_TRUE
;
904 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
906 extensions
->MESA_pack_invert
= GL_TRUE
;
908 extensions
->NV_fog_distance
= GL_TRUE
;
909 extensions
->NV_texture_env_combine4
= GL_TRUE
;
910 extensions
->NV_texture_rectangle
= GL_TRUE
;
912 extensions
->OES_EGL_image
= GL_TRUE
;
913 extensions
->OES_EGL_image_external
= GL_TRUE
;
914 extensions
->OES_draw_texture
= GL_TRUE
;
916 /* Expose the extensions which directly correspond to gallium caps. */
917 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
918 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
919 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
923 /* Expose the extensions which directly correspond to gallium formats. */
924 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
925 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
926 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
927 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
928 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
929 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
930 init_format_extensions(screen
, extensions
, texture_mapping
,
931 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
932 PIPE_BIND_SAMPLER_VIEW
);
933 init_format_extensions(screen
, extensions
, vertex_mapping
,
934 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
935 PIPE_BIND_VERTEX_BUFFER
);
937 /* Figure out GLSL support and set GLSLVersion to it. */
938 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
939 consts
->GLSLVersionCompat
=
940 screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY
);
942 const unsigned GLSLVersion
=
943 api
== API_OPENGL_COMPAT
? consts
->GLSLVersionCompat
:
946 _mesa_override_glsl_version(consts
);
948 if (options
->force_glsl_version
> 0 &&
949 options
->force_glsl_version
<= GLSLVersion
) {
950 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
953 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
955 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
957 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
959 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
961 consts
->AllowGLSLCrossStageInterpolationMismatch
= options
->allow_glsl_cross_stage_interpolation_mismatch
;
963 if (GLSLVersion
>= 400)
964 extensions
->ARB_gpu_shader5
= GL_TRUE
;
965 if (GLSLVersion
>= 410)
966 extensions
->ARB_shader_precision
= GL_TRUE
;
968 /* This extension needs full OpenGL 3.2, but we don't know if that's
969 * supported at this point. Only check the GLSL version. */
970 if (GLSLVersion
>= 150 &&
971 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
972 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
975 if (GLSLVersion
>= 140) {
976 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
))
977 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
980 if (GLSLVersion
>= 130) {
981 consts
->NativeIntegers
= GL_TRUE
;
982 consts
->MaxClipPlanes
= 8;
984 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
985 consts
->VertexID_is_zero_based
= GL_TRUE
;
988 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
989 extensions
->ARB_conservative_depth
= GL_TRUE
;
990 extensions
->ARB_shading_language_packing
= GL_TRUE
;
991 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
992 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
993 extensions
->ARB_texture_query_levels
= GL_TRUE
;
995 if (!options
->disable_shader_bit_encoding
) {
996 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
999 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1000 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
1001 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
1003 /* Optional integer support for GLSL 1.2. */
1004 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1005 PIPE_SHADER_CAP_INTEGERS
) &&
1006 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1007 PIPE_SHADER_CAP_INTEGERS
)) {
1008 consts
->NativeIntegers
= GL_TRUE
;
1010 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
1013 /* Integer textures make no sense before GLSL 1.30 */
1014 extensions
->EXT_texture_integer
= GL_FALSE
;
1017 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
1019 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
1021 /* Below are the cases which cannot be moved into tables easily. */
1023 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1024 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
1025 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0 &&
1026 (api
!= API_OPENGL_COMPAT
|| consts
->GLSLVersionCompat
>= 400)) {
1027 extensions
->ARB_tessellation_shader
= GL_TRUE
;
1030 /* What this is really checking for is the ability to support multiple
1031 * invocations of a geometry shader. There is no separate cap for that, so
1032 * we check the GLSLVersion.
1034 if (GLSLVersion
>= 400 &&
1035 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
1036 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
1037 extensions
->OES_geometry_shader
= GL_TRUE
;
1040 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1041 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1043 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
1044 extensions
->ARB_gpu_shader5
;
1046 /* Maximum sample count. */
1048 static const enum pipe_format color_formats
[] = {
1049 PIPE_FORMAT_R8G8B8A8_UNORM
,
1050 PIPE_FORMAT_B8G8R8A8_UNORM
,
1051 PIPE_FORMAT_A8R8G8B8_UNORM
,
1052 PIPE_FORMAT_A8B8G8R8_UNORM
,
1054 static const enum pipe_format depth_formats
[] = {
1055 PIPE_FORMAT_Z16_UNORM
,
1056 PIPE_FORMAT_Z24X8_UNORM
,
1057 PIPE_FORMAT_X8Z24_UNORM
,
1058 PIPE_FORMAT_Z32_UNORM
,
1059 PIPE_FORMAT_Z32_FLOAT
1061 static const enum pipe_format int_formats
[] = {
1062 PIPE_FORMAT_R8G8B8A8_SINT
1064 static const enum pipe_format void_formats
[] = {
1068 consts
->MaxSamples
=
1069 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1071 PIPE_BIND_RENDER_TARGET
);
1073 consts
->MaxImageSamples
=
1074 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1076 PIPE_BIND_SHADER_IMAGE
);
1078 consts
->MaxColorTextureSamples
=
1079 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1080 color_formats
, consts
->MaxSamples
,
1081 PIPE_BIND_SAMPLER_VIEW
);
1083 consts
->MaxDepthTextureSamples
=
1084 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1085 depth_formats
, consts
->MaxSamples
,
1086 PIPE_BIND_SAMPLER_VIEW
);
1088 consts
->MaxIntegerSamples
=
1089 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1090 int_formats
, consts
->MaxSamples
,
1091 PIPE_BIND_SAMPLER_VIEW
);
1093 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1094 consts
->MaxFramebufferSamples
=
1095 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1097 PIPE_BIND_RENDER_TARGET
);
1100 if (consts
->MaxSamples
>= 2) {
1101 /* Real MSAA support */
1102 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1103 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1105 else if (consts
->MaxSamples
> 0 &&
1106 screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1107 /* fake MSAA support */
1108 consts
->FakeSWMSAA
= GL_TRUE
;
1109 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1110 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1111 extensions
->ARB_texture_multisample
= GL_TRUE
;
1114 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1115 !options
->disable_blend_func_extended
)
1116 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1118 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1119 extensions
->ARB_timer_query
) {
1120 extensions
->EXT_timer_query
= GL_TRUE
;
1123 if (extensions
->ARB_transform_feedback2
&&
1124 extensions
->ARB_draw_instanced
) {
1125 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1127 if (options
->force_glsl_extensions_warn
)
1128 consts
->ForceGLSLExtensionsWarn
= 1;
1130 if (options
->disable_glsl_line_continuations
)
1131 consts
->DisableGLSLLineContinuations
= 1;
1133 if (options
->allow_glsl_extension_directive_midshader
)
1134 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1136 consts
->MinMapBufferAlignment
=
1137 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1139 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1140 if (api
== API_OPENGL_COMPAT
&&
1141 screen
->get_param(screen
, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY
))
1142 extensions
->ARB_texture_buffer_object
= GL_FALSE
;
1144 if (extensions
->ARB_texture_buffer_object
) {
1145 consts
->MaxTextureBufferSize
=
1146 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1148 consts
->TextureBufferOffsetAlignment
=
1149 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1151 if (consts
->TextureBufferOffsetAlignment
)
1152 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1154 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1155 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1156 PIPE_BIND_SAMPLER_VIEW
);
1159 extensions
->OES_texture_buffer
=
1160 extensions
->ARB_texture_buffer_object
&&
1161 extensions
->ARB_texture_buffer_range
&&
1162 extensions
->ARB_texture_buffer_object_rgb32
&&
1163 extensions
->ARB_shader_image_load_store
;
1165 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1166 * If the number of available texture indirections is very limited, then we
1167 * prefer to disable varying packing rather than run the risk of varying
1168 * packing preventing a shader from running.
1170 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1171 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1172 /* We can't disable varying packing if transform feedback is available,
1173 * because transform feedback code assumes a packed varying layout.
1175 if (!extensions
->EXT_transform_feedback
)
1176 consts
->DisableVaryingPacking
= GL_TRUE
;
1179 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1180 if (consts
->MaxViewports
>= 16) {
1181 if (GLSLVersion
>= 400) {
1182 consts
->ViewportBounds
.Min
= -32768.0;
1183 consts
->ViewportBounds
.Max
= 32767.0;
1185 consts
->ViewportBounds
.Min
= -16384.0;
1186 consts
->ViewportBounds
.Max
= 16383.0;
1188 extensions
->ARB_viewport_array
= GL_TRUE
;
1189 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1190 if (extensions
->AMD_vertex_shader_layer
)
1191 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1194 if (extensions
->AMD_vertex_shader_layer
&&
1195 extensions
->AMD_vertex_shader_viewport_index
&&
1196 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1197 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1199 /* ARB_framebuffer_no_attachments */
1200 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1201 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1202 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1203 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1204 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1206 /* GL_ARB_ES3_compatibility.
1207 * Check requirements for GLSL ES 3.00.
1209 if (GLSLVersion
>= 130 &&
1210 extensions
->ARB_uniform_buffer_object
&&
1211 extensions
->ARB_shader_bit_encoding
&&
1212 extensions
->NV_primitive_restart
&&
1213 screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
1214 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
) >= 16 &&
1215 /* Requirements for ETC2 emulation. */
1216 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1218 PIPE_BIND_SAMPLER_VIEW
) &&
1219 screen
->is_format_supported(screen
, PIPE_FORMAT_B8G8R8A8_SRGB
,
1221 PIPE_BIND_SAMPLER_VIEW
) &&
1222 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1224 PIPE_BIND_SAMPLER_VIEW
) &&
1225 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1227 PIPE_BIND_SAMPLER_VIEW
) &&
1228 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1230 PIPE_BIND_SAMPLER_VIEW
) &&
1231 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1233 PIPE_BIND_SAMPLER_VIEW
)) {
1234 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1237 #ifdef HAVE_ST_VDPAU
1238 if (screen
->get_video_param
&&
1239 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1240 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1241 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1242 extensions
->NV_vdpau_interop
= GL_TRUE
;
1246 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1247 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1248 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1251 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1252 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1253 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1255 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1256 int compute_supported_irs
=
1257 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1258 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1259 if (compute_supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)) {
1260 uint64_t grid_size
[3], block_size
[3];
1261 uint64_t max_local_size
, max_threads_per_block
;
1263 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1264 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1265 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1266 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1267 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1268 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1269 &max_threads_per_block
);
1270 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1271 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1274 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1275 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1277 for (i
= 0; i
< 3; i
++) {
1278 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1279 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1282 extensions
->ARB_compute_shader
=
1283 extensions
->ARB_shader_image_load_store
&&
1284 extensions
->ARB_shader_atomic_counters
;
1286 if (extensions
->ARB_compute_shader
) {
1287 uint64_t max_variable_threads_per_block
= 0;
1289 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1290 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1291 &max_variable_threads_per_block
);
1293 for (i
= 0; i
< 3; i
++) {
1294 /* Clamp the values to avoid having a local work group size
1295 * greater than the maximum number of invocations.
1297 consts
->MaxComputeVariableGroupSize
[i
] =
1298 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1299 max_variable_threads_per_block
);
1301 consts
->MaxComputeVariableGroupInvocations
=
1302 max_variable_threads_per_block
;
1304 extensions
->ARB_compute_variable_group_size
=
1305 max_variable_threads_per_block
> 0;
1310 if (extensions
->EXT_texture_filter_anisotropic
&&
1311 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
) >= 16.0)
1312 extensions
->ARB_texture_filter_anisotropic
= GL_TRUE
;
1314 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1316 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1317 * there's no clean way of telling whether we would support ES 3.1 from
1318 * here, so copy the condition from compute_version_es2 here. A lot of
1319 * these are redunant, but simpler to just have a (near-)exact copy here.
1321 extensions
->ARB_ES3_1_compatibility
=
1322 extensions
->ARB_ES3_compatibility
&&
1323 extensions
->ARB_arrays_of_arrays
&&
1324 extensions
->ARB_compute_shader
&&
1325 extensions
->ARB_draw_indirect
&&
1326 extensions
->ARB_explicit_uniform_location
&&
1327 extensions
->ARB_framebuffer_no_attachments
&&
1328 extensions
->ARB_shader_atomic_counters
&&
1329 extensions
->ARB_shader_image_load_store
&&
1330 extensions
->ARB_shader_image_size
&&
1331 extensions
->ARB_shader_storage_buffer_object
&&
1332 extensions
->ARB_shading_language_packing
&&
1333 extensions
->ARB_stencil_texturing
&&
1334 extensions
->ARB_texture_multisample
&&
1335 extensions
->ARB_gpu_shader5
&&
1336 extensions
->EXT_shader_integer_mix
;
1338 extensions
->OES_texture_cube_map_array
=
1339 extensions
->ARB_ES3_1_compatibility
&&
1340 extensions
->OES_geometry_shader
&&
1341 extensions
->ARB_texture_cube_map_array
;
1343 extensions
->OES_viewport_array
=
1344 extensions
->ARB_ES3_1_compatibility
&&
1345 extensions
->OES_geometry_shader
&&
1346 extensions
->ARB_viewport_array
;
1348 extensions
->OES_primitive_bounding_box
= extensions
->ARB_ES3_1_compatibility
;
1349 consts
->NoPrimitiveBoundingBoxOutput
= true;
1351 extensions
->ANDROID_extension_pack_es31a
=
1352 extensions
->KHR_texture_compression_astc_ldr
&&
1353 extensions
->KHR_blend_equation_advanced
&&
1354 extensions
->OES_sample_variables
&&
1355 extensions
->ARB_shader_image_load_store
&&
1356 extensions
->ARB_texture_stencil8
&&
1357 extensions
->ARB_texture_multisample
&&
1358 extensions
->OES_copy_image
&&
1359 extensions
->ARB_draw_buffers_blend
&&
1360 extensions
->OES_geometry_shader
&&
1361 extensions
->ARB_gpu_shader5
&&
1362 extensions
->OES_primitive_bounding_box
&&
1363 extensions
->ARB_tessellation_shader
&&
1364 extensions
->ARB_texture_border_clamp
&&
1365 extensions
->OES_texture_buffer
&&
1366 extensions
->OES_texture_cube_map_array
&&
1367 extensions
->EXT_texture_sRGB_decode
;
1369 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1370 * before overall versions are selected. Also it's actually a subset of ES
1371 * 3.2, since it doesn't require ASTC or advanced blending.
1373 extensions
->ARB_ES3_2_compatibility
=
1374 extensions
->ARB_ES3_1_compatibility
&&
1375 extensions
->KHR_robustness
&&
1376 extensions
->ARB_copy_image
&&
1377 extensions
->ARB_draw_buffers_blend
&&
1378 extensions
->ARB_draw_elements_base_vertex
&&
1379 extensions
->OES_geometry_shader
&&
1380 extensions
->ARB_gpu_shader5
&&
1381 extensions
->ARB_sample_shading
&&
1382 extensions
->ARB_tessellation_shader
&&
1383 extensions
->ARB_texture_border_clamp
&&
1384 extensions
->OES_texture_buffer
&&
1385 extensions
->ARB_texture_cube_map_array
&&
1386 extensions
->ARB_texture_stencil8
&&
1387 extensions
->ARB_texture_multisample
;
1389 if (screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES
) &&
1390 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES
) &&
1391 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE
)) {
1393 bool pre_snap_triangles
, pre_snap_points_lines
;
1395 max_dilate
= screen
->get_paramf(screen
, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE
);
1397 pre_snap_triangles
=
1398 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES
);
1399 pre_snap_points_lines
=
1400 screen
->get_param(screen
, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES
);
1402 extensions
->NV_conservative_raster
=
1403 screen
->get_param(screen
, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS
) > 1;
1405 if (extensions
->NV_conservative_raster
) {
1406 extensions
->NV_conservative_raster_dilate
= max_dilate
>= 0.75;
1407 extensions
->NV_conservative_raster_pre_snap_triangles
= pre_snap_triangles
;
1408 extensions
->NV_conservative_raster_pre_snap
=
1409 pre_snap_triangles
&& pre_snap_points_lines
;