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 "main/imports.h"
30 #include "main/context.h"
31 #include "main/macros.h"
32 #include "main/version.h"
34 #include "pipe/p_context.h"
35 #include "pipe/p_defines.h"
36 #include "pipe/p_screen.h"
37 #include "util/u_math.h"
39 #include "st_context.h"
41 #include "st_extensions.h"
42 #include "st_format.h"
46 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
47 * avoid evaluating arguments (which are often function calls) more than once.
50 static unsigned _min(unsigned a
, unsigned b
)
52 return (a
< b
) ? a
: b
;
55 static float _maxf(float a
, float b
)
57 return (a
> b
) ? a
: b
;
60 static int _clamp(int a
, int min
, int max
)
72 * Query driver to get implementation limits.
73 * Note that we have to limit/clamp against Mesa's internal limits too.
75 void st_init_limits(struct pipe_screen
*screen
,
76 struct gl_constants
*c
, struct gl_extensions
*extensions
)
80 boolean can_ubo
= TRUE
;
83 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_2D_LEVELS
),
87 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_3D_LEVELS
),
88 MAX_3D_TEXTURE_LEVELS
);
90 c
->MaxCubeTextureLevels
91 = _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
),
92 MAX_CUBE_TEXTURE_LEVELS
);
95 = _min(1 << (c
->MaxTextureLevels
- 1), MAX_TEXTURE_RECT_SIZE
);
97 c
->MaxArrayTextureLayers
98 = screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
100 /* Define max viewport size and max renderbuffer size in terms of
101 * max texture size (note: max tex RECT size = max tex 2D size).
102 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
104 c
->MaxViewportWidth
=
105 c
->MaxViewportHeight
=
106 c
->MaxRenderbufferSize
= c
->MaxTextureRectSize
;
108 c
->ViewportSubpixelBits
=
109 screen
->get_param(screen
, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS
);
111 c
->MaxDrawBuffers
= c
->MaxColorAttachments
=
112 _clamp(screen
->get_param(screen
, PIPE_CAP_MAX_RENDER_TARGETS
),
113 1, MAX_DRAW_BUFFERS
);
115 c
->MaxDualSourceDrawBuffers
=
116 _clamp(screen
->get_param(screen
,
117 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS
),
118 0, MAX_DRAW_BUFFERS
);
121 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH
));
123 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_LINE_WIDTH_AA
));
126 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH
));
128 _maxf(1.0f
, screen
->get_paramf(screen
, PIPE_CAPF_MAX_POINT_WIDTH_AA
));
130 /* these are not queryable. Note that GL basically mandates a 1.0 minimum
131 * for non-aa sizes, but we can go down to 0.0 for aa points.
133 c
->MinPointSize
= 1.0f
;
134 c
->MinPointSizeAA
= 0.0f
;
136 c
->MaxTextureMaxAnisotropy
=
138 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY
));
140 c
->MaxTextureLodBias
=
141 screen
->get_paramf(screen
, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS
);
143 c
->QuadsFollowProvokingVertexConvention
=
144 screen
->get_param(screen
,
145 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
);
147 c
->MaxUniformBlockSize
=
148 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
149 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
);
150 if (c
->MaxUniformBlockSize
< 16384) {
154 for (sh
= 0; sh
< PIPE_SHADER_TYPES
; ++sh
) {
155 struct gl_shader_compiler_options
*options
;
156 struct gl_program_constants
*pc
;
159 case PIPE_SHADER_FRAGMENT
:
160 pc
= &c
->Program
[MESA_SHADER_FRAGMENT
];
161 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_FRAGMENT
];
163 case PIPE_SHADER_VERTEX
:
164 pc
= &c
->Program
[MESA_SHADER_VERTEX
];
165 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_VERTEX
];
167 case PIPE_SHADER_GEOMETRY
:
168 pc
= &c
->Program
[MESA_SHADER_GEOMETRY
];
169 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_GEOMETRY
];
171 case PIPE_SHADER_TESS_CTRL
:
172 pc
= &c
->Program
[MESA_SHADER_TESS_CTRL
];
173 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_TESS_CTRL
];
175 case PIPE_SHADER_TESS_EVAL
:
176 pc
= &c
->Program
[MESA_SHADER_TESS_EVAL
];
177 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_TESS_EVAL
];
179 case PIPE_SHADER_COMPUTE
:
180 pc
= &c
->Program
[MESA_SHADER_COMPUTE
];
181 options
= &c
->ShaderCompilerOptions
[MESA_SHADER_COMPUTE
];
183 if (!screen
->get_param(screen
, PIPE_CAP_COMPUTE
))
186 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_SUPPORTED_IRS
);
187 if (!(supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)))
194 pc
->MaxTextureImageUnits
=
195 _min(screen
->get_shader_param(screen
, sh
,
196 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS
),
197 MAX_TEXTURE_IMAGE_UNITS
);
199 pc
->MaxInstructions
=
200 pc
->MaxNativeInstructions
=
201 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
202 pc
->MaxAluInstructions
=
203 pc
->MaxNativeAluInstructions
=
204 screen
->get_shader_param(screen
, sh
,
205 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS
);
206 pc
->MaxTexInstructions
=
207 pc
->MaxNativeTexInstructions
=
208 screen
->get_shader_param(screen
, sh
,
209 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS
);
210 pc
->MaxTexIndirections
=
211 pc
->MaxNativeTexIndirections
=
212 screen
->get_shader_param(screen
, sh
,
213 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
);
215 pc
->MaxNativeAttribs
=
216 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
);
219 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_TEMPS
);
221 pc
->MaxNativeAddressRegs
= sh
== PIPE_SHADER_VERTEX
? 1 : 0;
223 pc
->MaxNativeParameters
=
224 screen
->get_shader_param(screen
, sh
,
225 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE
) / sizeof(float[4]);
226 pc
->MaxInputComponents
=
227 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_INPUTS
) * 4;
228 pc
->MaxOutputComponents
=
229 screen
->get_shader_param(screen
, sh
, PIPE_SHADER_CAP_MAX_OUTPUTS
) * 4;
231 pc
->MaxUniformComponents
=
232 4 * MIN2(pc
->MaxNativeParameters
, MAX_UNIFORMS
);
234 pc
->MaxUniformBlocks
=
235 screen
->get_shader_param(screen
, sh
,
236 PIPE_SHADER_CAP_MAX_CONST_BUFFERS
);
237 if (pc
->MaxUniformBlocks
)
238 pc
->MaxUniformBlocks
-= 1; /* The first one is for ordinary uniforms. */
239 pc
->MaxUniformBlocks
= _min(pc
->MaxUniformBlocks
, MAX_UNIFORM_BUFFERS
);
241 pc
->MaxCombinedUniformComponents
= (pc
->MaxUniformComponents
+
242 c
->MaxUniformBlockSize
/ 4 *
243 pc
->MaxUniformBlocks
);
245 pc
->MaxAtomicCounters
= MAX_ATOMIC_COUNTERS
;
246 pc
->MaxAtomicBuffers
= screen
->get_shader_param(
247 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 c
->MaxAtomicBufferBindings
=
409 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
410 c
->MaxCombinedAtomicBuffers
=
411 c
->Program
[MESA_SHADER_VERTEX
].MaxAtomicBuffers
+
412 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxAtomicBuffers
+
413 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxAtomicBuffers
+
414 c
->Program
[MESA_SHADER_GEOMETRY
].MaxAtomicBuffers
+
415 c
->Program
[MESA_SHADER_FRAGMENT
].MaxAtomicBuffers
;
416 assert(c
->MaxCombinedAtomicBuffers
<= MAX_COMBINED_ATOMIC_BUFFERS
);
418 if (c
->MaxCombinedAtomicBuffers
> 0) {
419 extensions
->ARB_shader_atomic_counters
= GL_TRUE
;
420 extensions
->ARB_shader_atomic_counter_ops
= GL_TRUE
;
423 c
->MaxCombinedShaderOutputResources
= c
->MaxDrawBuffers
;
424 c
->ShaderStorageBufferOffsetAlignment
=
425 screen
->get_param(screen
, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT
);
426 if (c
->ShaderStorageBufferOffsetAlignment
) {
427 c
->MaxCombinedShaderStorageBlocks
= c
->MaxShaderStorageBufferBindings
=
428 c
->MaxCombinedAtomicBuffers
;
429 c
->MaxCombinedShaderOutputResources
+=
430 c
->MaxCombinedShaderStorageBlocks
;
431 c
->MaxShaderStorageBlockSize
= 1 << 27;
432 extensions
->ARB_shader_storage_buffer_object
= GL_TRUE
;
435 c
->MaxCombinedImageUniforms
=
436 c
->Program
[MESA_SHADER_VERTEX
].MaxImageUniforms
+
437 c
->Program
[MESA_SHADER_TESS_CTRL
].MaxImageUniforms
+
438 c
->Program
[MESA_SHADER_TESS_EVAL
].MaxImageUniforms
+
439 c
->Program
[MESA_SHADER_GEOMETRY
].MaxImageUniforms
+
440 c
->Program
[MESA_SHADER_FRAGMENT
].MaxImageUniforms
+
441 c
->Program
[MESA_SHADER_COMPUTE
].MaxImageUniforms
;
442 c
->MaxCombinedShaderOutputResources
+= c
->MaxCombinedImageUniforms
;
443 c
->MaxImageUnits
= MAX_IMAGE_UNITS
;
444 if (c
->MaxCombinedImageUniforms
) {
445 extensions
->ARB_shader_image_load_store
= GL_TRUE
;
446 extensions
->ARB_shader_image_size
= GL_TRUE
;
449 /* ARB_framebuffer_no_attachments */
450 c
->MaxFramebufferWidth
= c
->MaxViewportWidth
;
451 c
->MaxFramebufferHeight
= c
->MaxViewportHeight
;
452 /* NOTE: we cheat here a little by assuming that
453 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
454 * number of layers as we need, although we technically
455 * could have more the generality is not really useful
458 c
->MaxFramebufferLayers
=
459 screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
);
461 c
->MaxWindowRectangles
=
462 screen
->get_param(screen
, PIPE_CAP_MAX_WINDOW_RECTANGLES
);
464 c
->SparseBufferPageSize
=
465 screen
->get_param(screen
, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
);
467 c
->AllowMappedBuffersDuringExecution
=
468 screen
->get_param(screen
, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION
);
473 * Given a member \c x of struct gl_extensions, return offset of
476 #define o(x) offsetof(struct gl_extensions, x)
479 struct st_extension_cap_mapping
{
480 int extension_offset
;
484 struct st_extension_format_mapping
{
485 int extension_offset
[2];
486 enum pipe_format format
[32];
488 /* If TRUE, at least one format must be supported for the extensions to be
489 * advertised. If FALSE, all the formats must be supported. */
490 GLboolean need_at_least_one
;
494 * Enable extensions if certain pipe formats are supported by the driver.
495 * What extensions will be enabled and what formats must be supported is
496 * described by the array of st_extension_format_mapping.
498 * target and bind_flags are passed to is_format_supported.
501 init_format_extensions(struct pipe_screen
*screen
,
502 struct gl_extensions
*extensions
,
503 const struct st_extension_format_mapping
*mapping
,
504 unsigned num_mappings
,
505 enum pipe_texture_target target
,
508 GLboolean
*extension_table
= (GLboolean
*) extensions
;
511 int num_formats
= ARRAY_SIZE(mapping
->format
);
512 int num_ext
= ARRAY_SIZE(mapping
->extension_offset
);
514 for (i
= 0; i
< num_mappings
; i
++) {
515 int num_supported
= 0;
517 /* Examine each format in the list. */
518 for (j
= 0; j
< num_formats
&& mapping
[i
].format
[j
]; j
++) {
519 if (screen
->is_format_supported(screen
, mapping
[i
].format
[j
],
520 target
, 0, bind_flags
)) {
525 if (!num_supported
||
526 (!mapping
[i
].need_at_least_one
&& num_supported
!= j
)) {
530 /* Enable all extensions in the list. */
531 for (j
= 0; j
< num_ext
&& mapping
[i
].extension_offset
[j
]; j
++)
532 extension_table
[mapping
[i
].extension_offset
[j
]] = GL_TRUE
;
538 * Given a list of formats and bind flags, return the maximum number
539 * of samples supported by any of those formats.
542 get_max_samples_for_formats(struct pipe_screen
*screen
,
543 unsigned num_formats
,
544 enum pipe_format
*formats
,
545 unsigned max_samples
,
550 for (i
= max_samples
; i
> 0; --i
) {
551 for (f
= 0; f
< num_formats
; f
++) {
552 if (screen
->is_format_supported(screen
, formats
[f
],
553 PIPE_TEXTURE_2D
, i
, bind
)) {
563 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
564 * which GL extensions are supported.
565 * Quite a few extensions are always supported because they are standard
566 * features or can be built on top of other gallium features.
567 * Some fine tuning may still be needed.
569 void st_init_extensions(struct pipe_screen
*screen
,
570 struct gl_constants
*consts
,
571 struct gl_extensions
*extensions
,
572 struct st_config_options
*options
,
573 boolean has_lib_dxtc
)
576 GLboolean
*extension_table
= (GLboolean
*) extensions
;
578 static const struct st_extension_cap_mapping cap_mapping
[] = {
579 { o(ARB_base_instance
), PIPE_CAP_START_INSTANCE
},
580 { o(ARB_bindless_texture
), PIPE_CAP_BINDLESS_TEXTURE
},
581 { o(ARB_buffer_storage
), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT
},
582 { o(ARB_clear_texture
), PIPE_CAP_CLEAR_TEXTURE
},
583 { o(ARB_clip_control
), PIPE_CAP_CLIP_HALFZ
},
584 { o(ARB_color_buffer_float
), PIPE_CAP_VERTEX_COLOR_UNCLAMPED
},
585 { o(ARB_conditional_render_inverted
), PIPE_CAP_CONDITIONAL_RENDER_INVERTED
},
586 { o(ARB_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
587 { o(OES_copy_image
), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS
},
588 { o(ARB_cull_distance
), PIPE_CAP_CULL_DISTANCE
},
589 { o(ARB_depth_clamp
), PIPE_CAP_DEPTH_CLIP_DISABLE
},
590 { o(ARB_depth_texture
), PIPE_CAP_TEXTURE_SHADOW_MAP
},
591 { o(ARB_derivative_control
), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE
},
592 { o(ARB_draw_buffers_blend
), PIPE_CAP_INDEP_BLEND_FUNC
},
593 { o(ARB_draw_indirect
), PIPE_CAP_DRAW_INDIRECT
},
594 { o(ARB_draw_instanced
), PIPE_CAP_TGSI_INSTANCEID
},
595 { o(ARB_fragment_program_shadow
), PIPE_CAP_TEXTURE_SHADOW_MAP
},
596 { o(ARB_framebuffer_object
), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES
},
597 { o(ARB_gpu_shader_int64
), PIPE_CAP_INT64
},
598 { o(ARB_indirect_parameters
), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS
},
599 { o(ARB_instanced_arrays
), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR
},
600 { o(ARB_occlusion_query
), PIPE_CAP_OCCLUSION_QUERY
},
601 { o(ARB_occlusion_query2
), PIPE_CAP_OCCLUSION_QUERY
},
602 { o(ARB_pipeline_statistics_query
), PIPE_CAP_QUERY_PIPELINE_STATISTICS
},
603 { o(ARB_point_sprite
), PIPE_CAP_POINT_SPRITE
},
604 { o(ARB_post_depth_coverage
), PIPE_CAP_POST_DEPTH_COVERAGE
},
605 { o(ARB_query_buffer_object
), PIPE_CAP_QUERY_BUFFER_OBJECT
},
606 { o(ARB_robust_buffer_access_behavior
), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR
},
607 { o(ARB_sample_shading
), PIPE_CAP_SAMPLE_SHADING
},
608 { o(ARB_seamless_cube_map
), PIPE_CAP_SEAMLESS_CUBE_MAP
},
609 { o(ARB_shader_ballot
), PIPE_CAP_TGSI_BALLOT
},
610 { o(ARB_shader_clock
), PIPE_CAP_TGSI_CLOCK
},
611 { o(ARB_shader_draw_parameters
), PIPE_CAP_DRAW_PARAMETERS
},
612 { o(ARB_shader_group_vote
), PIPE_CAP_TGSI_VOTE
},
613 { o(ARB_shader_stencil_export
), PIPE_CAP_SHADER_STENCIL_EXPORT
},
614 { o(ARB_shader_texture_image_samples
), PIPE_CAP_TGSI_TXQS
},
615 { o(ARB_shader_texture_lod
), PIPE_CAP_SM3
},
616 { o(ARB_shadow
), PIPE_CAP_TEXTURE_SHADOW_MAP
},
617 { o(ARB_sparse_buffer
), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE
},
618 { o(ARB_texture_buffer_object
), PIPE_CAP_TEXTURE_BUFFER_OBJECTS
},
619 { o(ARB_texture_cube_map_array
), PIPE_CAP_CUBE_MAP_ARRAY
},
620 { o(ARB_texture_gather
), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS
},
621 { o(ARB_texture_mirror_clamp_to_edge
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
622 { o(ARB_texture_multisample
), PIPE_CAP_TEXTURE_MULTISAMPLE
},
623 { o(ARB_texture_non_power_of_two
), PIPE_CAP_NPOT_TEXTURES
},
624 { o(ARB_texture_query_lod
), PIPE_CAP_TEXTURE_QUERY_LOD
},
625 { o(ARB_texture_view
), PIPE_CAP_SAMPLER_VIEW_TARGET
},
626 { o(ARB_timer_query
), PIPE_CAP_QUERY_TIMESTAMP
},
627 { o(ARB_transform_feedback2
), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME
},
628 { o(ARB_transform_feedback3
), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS
},
630 { o(KHR_blend_equation_advanced
), PIPE_CAP_TGSI_FS_FBFETCH
},
632 { o(EXT_blend_equation_separate
), PIPE_CAP_BLEND_EQUATION_SEPARATE
},
633 { o(EXT_depth_bounds_test
), PIPE_CAP_DEPTH_BOUNDS_TEST
},
634 { o(EXT_draw_buffers2
), PIPE_CAP_INDEP_BLEND_ENABLE
},
635 { o(EXT_polygon_offset_clamp
), PIPE_CAP_POLYGON_OFFSET_CLAMP
},
636 { o(EXT_stencil_two_side
), PIPE_CAP_TWO_SIDED_STENCIL
},
637 { o(EXT_texture_array
), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS
},
638 { o(EXT_texture_filter_anisotropic
), PIPE_CAP_ANISOTROPIC_FILTER
},
639 { o(EXT_texture_mirror_clamp
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
640 { o(EXT_texture_swizzle
), PIPE_CAP_TEXTURE_SWIZZLE
},
641 { o(EXT_transform_feedback
), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS
},
642 { o(EXT_window_rectangles
), PIPE_CAP_MAX_WINDOW_RECTANGLES
},
644 { o(AMD_pinned_memory
), PIPE_CAP_RESOURCE_FROM_USER_MEMORY
},
645 { o(ATI_meminfo
), PIPE_CAP_QUERY_MEMORY_INFO
},
646 { o(AMD_seamless_cubemap_per_texture
), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE
},
647 { o(ATI_separate_stencil
), PIPE_CAP_TWO_SIDED_STENCIL
},
648 { o(ATI_texture_mirror_once
), PIPE_CAP_TEXTURE_MIRROR_CLAMP
},
649 { o(NV_conditional_render
), PIPE_CAP_CONDITIONAL_RENDER
},
650 { o(NV_fill_rectangle
), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE
},
651 { o(NV_primitive_restart
), PIPE_CAP_PRIMITIVE_RESTART
},
652 { o(NV_texture_barrier
), PIPE_CAP_TEXTURE_BARRIER
},
653 { o(NVX_gpu_memory_info
), PIPE_CAP_QUERY_MEMORY_INFO
},
654 /* GL_NV_point_sprite is not supported by gallium because we don't
655 * support the GL_POINT_SPRITE_R_MODE_NV option. */
657 { o(OES_standard_derivatives
), PIPE_CAP_SM3
},
658 { o(OES_texture_float_linear
), PIPE_CAP_TEXTURE_FLOAT_LINEAR
},
659 { o(OES_texture_half_float_linear
), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR
},
662 /* Required: render target and sampler support */
663 static const struct st_extension_format_mapping rendertarget_mapping
[] = {
664 { { o(ARB_texture_float
) },
665 { PIPE_FORMAT_R32G32B32A32_FLOAT
,
666 PIPE_FORMAT_R16G16B16A16_FLOAT
} },
668 { { o(OES_texture_float
) },
669 { PIPE_FORMAT_R32G32B32A32_FLOAT
} },
671 { { o(OES_texture_half_float
) },
672 { PIPE_FORMAT_R16G16B16A16_FLOAT
} },
674 { { o(ARB_texture_rgb10_a2ui
) },
675 { PIPE_FORMAT_R10G10B10A2_UINT
,
676 PIPE_FORMAT_B10G10R10A2_UINT
},
677 GL_TRUE
}, /* at least one format must be supported */
679 { { o(EXT_framebuffer_sRGB
) },
680 { PIPE_FORMAT_A8B8G8R8_SRGB
,
681 PIPE_FORMAT_B8G8R8A8_SRGB
},
682 GL_TRUE
}, /* at least one format must be supported */
684 { { o(EXT_packed_float
) },
685 { PIPE_FORMAT_R11G11B10_FLOAT
} },
687 { { o(EXT_texture_integer
) },
688 { PIPE_FORMAT_R32G32B32A32_UINT
,
689 PIPE_FORMAT_R32G32B32A32_SINT
} },
691 { { o(ARB_texture_rg
) },
692 { PIPE_FORMAT_R8_UNORM
,
693 PIPE_FORMAT_R8G8_UNORM
} },
696 /* Required: depth stencil and sampler support */
697 static const struct st_extension_format_mapping depthstencil_mapping
[] = {
698 { { o(ARB_depth_buffer_float
) },
699 { PIPE_FORMAT_Z32_FLOAT
,
700 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
} },
703 /* Required: sampler support */
704 static const struct st_extension_format_mapping texture_mapping
[] = {
705 { { o(ARB_texture_compression_rgtc
) },
706 { PIPE_FORMAT_RGTC1_UNORM
,
707 PIPE_FORMAT_RGTC1_SNORM
,
708 PIPE_FORMAT_RGTC2_UNORM
,
709 PIPE_FORMAT_RGTC2_SNORM
} },
711 { { o(EXT_texture_compression_latc
) },
712 { PIPE_FORMAT_LATC1_UNORM
,
713 PIPE_FORMAT_LATC1_SNORM
,
714 PIPE_FORMAT_LATC2_UNORM
,
715 PIPE_FORMAT_LATC2_SNORM
} },
717 { { o(EXT_texture_compression_s3tc
),
718 o(ANGLE_texture_compression_dxt
) },
719 { PIPE_FORMAT_DXT1_RGB
,
720 PIPE_FORMAT_DXT1_RGBA
,
721 PIPE_FORMAT_DXT3_RGBA
,
722 PIPE_FORMAT_DXT5_RGBA
} },
724 { { o(ARB_texture_compression_bptc
) },
725 { PIPE_FORMAT_BPTC_RGBA_UNORM
,
726 PIPE_FORMAT_BPTC_SRGBA
,
727 PIPE_FORMAT_BPTC_RGB_FLOAT
,
728 PIPE_FORMAT_BPTC_RGB_UFLOAT
} },
730 { { o(KHR_texture_compression_astc_ldr
) },
731 { PIPE_FORMAT_ASTC_4x4
,
732 PIPE_FORMAT_ASTC_5x4
,
733 PIPE_FORMAT_ASTC_5x5
,
734 PIPE_FORMAT_ASTC_6x5
,
735 PIPE_FORMAT_ASTC_6x6
,
736 PIPE_FORMAT_ASTC_8x5
,
737 PIPE_FORMAT_ASTC_8x6
,
738 PIPE_FORMAT_ASTC_8x8
,
739 PIPE_FORMAT_ASTC_10x5
,
740 PIPE_FORMAT_ASTC_10x6
,
741 PIPE_FORMAT_ASTC_10x8
,
742 PIPE_FORMAT_ASTC_10x10
,
743 PIPE_FORMAT_ASTC_12x10
,
744 PIPE_FORMAT_ASTC_12x12
,
745 PIPE_FORMAT_ASTC_4x4_SRGB
,
746 PIPE_FORMAT_ASTC_5x4_SRGB
,
747 PIPE_FORMAT_ASTC_5x5_SRGB
,
748 PIPE_FORMAT_ASTC_6x5_SRGB
,
749 PIPE_FORMAT_ASTC_6x6_SRGB
,
750 PIPE_FORMAT_ASTC_8x5_SRGB
,
751 PIPE_FORMAT_ASTC_8x6_SRGB
,
752 PIPE_FORMAT_ASTC_8x8_SRGB
,
753 PIPE_FORMAT_ASTC_10x5_SRGB
,
754 PIPE_FORMAT_ASTC_10x6_SRGB
,
755 PIPE_FORMAT_ASTC_10x8_SRGB
,
756 PIPE_FORMAT_ASTC_10x10_SRGB
,
757 PIPE_FORMAT_ASTC_12x10_SRGB
,
758 PIPE_FORMAT_ASTC_12x12_SRGB
} },
760 { { o(EXT_texture_shared_exponent
) },
761 { PIPE_FORMAT_R9G9B9E5_FLOAT
} },
763 { { o(EXT_texture_snorm
) },
764 { PIPE_FORMAT_R8G8B8A8_SNORM
} },
766 { { o(EXT_texture_sRGB
),
767 o(EXT_texture_sRGB_decode
) },
768 { PIPE_FORMAT_A8B8G8R8_SRGB
,
769 PIPE_FORMAT_B8G8R8A8_SRGB
},
770 GL_TRUE
}, /* at least one format must be supported */
772 { { o(ATI_texture_compression_3dc
) },
773 { PIPE_FORMAT_LATC2_UNORM
} },
775 { { o(MESA_ycbcr_texture
) },
778 GL_TRUE
}, /* at least one format must be supported */
780 { { o(OES_compressed_ETC1_RGB8_texture
) },
781 { PIPE_FORMAT_ETC1_RGB8
,
782 PIPE_FORMAT_R8G8B8A8_UNORM
},
783 GL_TRUE
}, /* at least one format must be supported */
785 { { o(ARB_stencil_texturing
),
786 o(ARB_texture_stencil8
) },
787 { PIPE_FORMAT_X24S8_UINT
,
788 PIPE_FORMAT_S8X24_UINT
},
789 GL_TRUE
}, /* at least one format must be supported */
792 /* Required: vertex fetch support. */
793 static const struct st_extension_format_mapping vertex_mapping
[] = {
794 { { o(EXT_vertex_array_bgra
) },
795 { PIPE_FORMAT_B8G8R8A8_UNORM
} },
796 { { o(ARB_vertex_type_2_10_10_10_rev
) },
797 { PIPE_FORMAT_R10G10B10A2_UNORM
,
798 PIPE_FORMAT_B10G10R10A2_UNORM
,
799 PIPE_FORMAT_R10G10B10A2_SNORM
,
800 PIPE_FORMAT_B10G10R10A2_SNORM
,
801 PIPE_FORMAT_R10G10B10A2_USCALED
,
802 PIPE_FORMAT_B10G10R10A2_USCALED
,
803 PIPE_FORMAT_R10G10B10A2_SSCALED
,
804 PIPE_FORMAT_B10G10R10A2_SSCALED
} },
805 { { o(ARB_vertex_type_10f_11f_11f_rev
) },
806 { PIPE_FORMAT_R11G11B10_FLOAT
} },
809 static const struct st_extension_format_mapping tbo_rgb32
[] = {
810 { {o(ARB_texture_buffer_object_rgb32
) },
811 { PIPE_FORMAT_R32G32B32_FLOAT
,
812 PIPE_FORMAT_R32G32B32_UINT
,
813 PIPE_FORMAT_R32G32B32_SINT
,
818 * Extensions that are supported by all Gallium drivers:
820 extensions
->ARB_ES2_compatibility
= GL_TRUE
;
821 extensions
->ARB_draw_elements_base_vertex
= GL_TRUE
;
822 extensions
->ARB_explicit_attrib_location
= GL_TRUE
;
823 extensions
->ARB_explicit_uniform_location
= GL_TRUE
;
824 extensions
->ARB_fragment_coord_conventions
= GL_TRUE
;
825 extensions
->ARB_fragment_program
= GL_TRUE
;
826 extensions
->ARB_fragment_shader
= GL_TRUE
;
827 extensions
->ARB_half_float_vertex
= GL_TRUE
;
828 extensions
->ARB_internalformat_query
= GL_TRUE
;
829 extensions
->ARB_internalformat_query2
= GL_TRUE
;
830 extensions
->ARB_map_buffer_range
= GL_TRUE
;
831 extensions
->ARB_texture_border_clamp
= GL_TRUE
; /* XXX temp */
832 extensions
->ARB_texture_cube_map
= GL_TRUE
;
833 extensions
->ARB_texture_env_combine
= GL_TRUE
;
834 extensions
->ARB_texture_env_crossbar
= GL_TRUE
;
835 extensions
->ARB_texture_env_dot3
= GL_TRUE
;
836 extensions
->ARB_vertex_program
= GL_TRUE
;
837 extensions
->ARB_vertex_shader
= GL_TRUE
;
839 extensions
->EXT_blend_color
= GL_TRUE
;
840 extensions
->EXT_blend_func_separate
= GL_TRUE
;
841 extensions
->EXT_blend_minmax
= GL_TRUE
;
842 extensions
->EXT_gpu_program_parameters
= GL_TRUE
;
843 extensions
->EXT_pixel_buffer_object
= GL_TRUE
;
844 extensions
->EXT_point_parameters
= GL_TRUE
;
845 extensions
->EXT_provoking_vertex
= GL_TRUE
;
847 extensions
->EXT_texture_env_dot3
= GL_TRUE
;
849 extensions
->ATI_fragment_shader
= GL_TRUE
;
850 extensions
->ATI_texture_env_combine3
= GL_TRUE
;
852 extensions
->MESA_pack_invert
= GL_TRUE
;
854 extensions
->NV_fog_distance
= GL_TRUE
;
855 extensions
->NV_texture_env_combine4
= GL_TRUE
;
856 extensions
->NV_texture_rectangle
= GL_TRUE
;
858 extensions
->OES_EGL_image
= GL_TRUE
;
859 extensions
->OES_EGL_image_external
= GL_TRUE
;
860 extensions
->OES_draw_texture
= GL_TRUE
;
862 /* Expose the extensions which directly correspond to gallium caps. */
863 for (i
= 0; i
< ARRAY_SIZE(cap_mapping
); i
++) {
864 if (screen
->get_param(screen
, cap_mapping
[i
].cap
)) {
865 extension_table
[cap_mapping
[i
].extension_offset
] = GL_TRUE
;
869 /* Expose the extensions which directly correspond to gallium formats. */
870 init_format_extensions(screen
, extensions
, rendertarget_mapping
,
871 ARRAY_SIZE(rendertarget_mapping
), PIPE_TEXTURE_2D
,
872 PIPE_BIND_RENDER_TARGET
| PIPE_BIND_SAMPLER_VIEW
);
873 init_format_extensions(screen
, extensions
, depthstencil_mapping
,
874 ARRAY_SIZE(depthstencil_mapping
), PIPE_TEXTURE_2D
,
875 PIPE_BIND_DEPTH_STENCIL
| PIPE_BIND_SAMPLER_VIEW
);
876 init_format_extensions(screen
, extensions
, texture_mapping
,
877 ARRAY_SIZE(texture_mapping
), PIPE_TEXTURE_2D
,
878 PIPE_BIND_SAMPLER_VIEW
);
879 init_format_extensions(screen
, extensions
, vertex_mapping
,
880 ARRAY_SIZE(vertex_mapping
), PIPE_BUFFER
,
881 PIPE_BIND_VERTEX_BUFFER
);
883 /* Figure out GLSL support and set GLSLVersion to it. */
884 consts
->GLSLVersion
= screen
->get_param(screen
, PIPE_CAP_GLSL_FEATURE_LEVEL
);
886 _mesa_override_glsl_version(consts
);
888 if (options
->force_glsl_version
> 0 &&
889 options
->force_glsl_version
<= consts
->GLSLVersion
) {
890 consts
->ForceGLSLVersion
= options
->force_glsl_version
;
893 consts
->AllowHigherCompatVersion
= options
->allow_higher_compat_version
;
895 consts
->ForceGLSLAbsSqrt
= options
->force_glsl_abs_sqrt
;
897 consts
->AllowGLSLBuiltinVariableRedeclaration
= options
->allow_glsl_builtin_variable_redeclaration
;
899 consts
->dri_config_options_sha1
= options
->config_options_sha1
;
901 if (consts
->GLSLVersion
>= 400)
902 extensions
->ARB_gpu_shader5
= GL_TRUE
;
903 if (consts
->GLSLVersion
>= 410)
904 extensions
->ARB_shader_precision
= GL_TRUE
;
906 /* This extension needs full OpenGL 3.2, but we don't know if that's
907 * supported at this point. Only check the GLSL version. */
908 if (consts
->GLSLVersion
>= 150 &&
909 screen
->get_param(screen
, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT
)) {
910 extensions
->AMD_vertex_shader_layer
= GL_TRUE
;
913 if (consts
->GLSLVersion
>= 140) {
914 if (screen
->get_param(screen
, PIPE_CAP_TGSI_ARRAY_COMPONENTS
) &&
915 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
916 PIPE_SHADER_CAP_PREFERRED_IR
) == PIPE_SHADER_IR_TGSI
)
917 extensions
->ARB_enhanced_layouts
= GL_TRUE
;
920 if (consts
->GLSLVersion
>= 130) {
921 consts
->NativeIntegers
= GL_TRUE
;
922 consts
->MaxClipPlanes
= 8;
924 if (screen
->get_param(screen
, PIPE_CAP_VERTEXID_NOBASE
)) {
925 consts
->VertexID_is_zero_based
= GL_TRUE
;
928 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
929 extensions
->ARB_conservative_depth
= GL_TRUE
;
930 extensions
->ARB_shading_language_packing
= GL_TRUE
;
931 extensions
->OES_depth_texture_cube_map
= GL_TRUE
;
932 extensions
->ARB_shading_language_420pack
= GL_TRUE
;
933 extensions
->ARB_texture_query_levels
= GL_TRUE
;
935 if (!options
->disable_shader_bit_encoding
) {
936 extensions
->ARB_shader_bit_encoding
= GL_TRUE
;
939 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
940 extensions
->ARB_arrays_of_arrays
= GL_TRUE
;
941 extensions
->MESA_shader_integer_functions
= GL_TRUE
;
943 /* Optional integer support for GLSL 1.2. */
944 if (screen
->get_shader_param(screen
, PIPE_SHADER_VERTEX
,
945 PIPE_SHADER_CAP_INTEGERS
) &&
946 screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
947 PIPE_SHADER_CAP_INTEGERS
)) {
948 consts
->NativeIntegers
= GL_TRUE
;
950 extensions
->EXT_shader_integer_mix
= GL_TRUE
;
953 /* Integer textures make no sense before GLSL 1.30 */
954 extensions
->EXT_texture_integer
= GL_FALSE
;
957 consts
->GLSLZeroInit
= options
->glsl_zero_init
;
959 consts
->UniformBooleanTrue
= consts
->NativeIntegers
? ~0U : fui(1.0f
);
961 /* Below are the cases which cannot be moved into tables easily. */
963 if (!has_lib_dxtc
&& !options
->force_s3tc_enable
) {
964 extensions
->EXT_texture_compression_s3tc
= GL_FALSE
;
965 extensions
->ANGLE_texture_compression_dxt
= GL_FALSE
;
968 if (screen
->get_shader_param(screen
, PIPE_SHADER_TESS_CTRL
,
969 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
970 extensions
->ARB_tessellation_shader
= GL_TRUE
;
973 /* What this is really checking for is the ability to support multiple
974 * invocations of a geometry shader. There is no separate cap for that, so
975 * we check the GLSLVersion.
977 if (consts
->GLSLVersion
>= 400 &&
978 screen
->get_shader_param(screen
, PIPE_SHADER_GEOMETRY
,
979 PIPE_SHADER_CAP_MAX_INSTRUCTIONS
) > 0) {
980 extensions
->OES_geometry_shader
= GL_TRUE
;
983 if (screen
->fence_finish
) {
984 extensions
->ARB_sync
= GL_TRUE
;
987 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
988 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
990 extensions
->OES_sample_variables
= extensions
->ARB_sample_shading
&&
991 extensions
->ARB_gpu_shader5
;
993 /* Maximum sample count. */
995 enum pipe_format color_formats
[] = {
996 PIPE_FORMAT_R8G8B8A8_UNORM
,
997 PIPE_FORMAT_B8G8R8A8_UNORM
,
998 PIPE_FORMAT_A8R8G8B8_UNORM
,
999 PIPE_FORMAT_A8B8G8R8_UNORM
,
1001 enum pipe_format depth_formats
[] = {
1002 PIPE_FORMAT_Z16_UNORM
,
1003 PIPE_FORMAT_Z24X8_UNORM
,
1004 PIPE_FORMAT_X8Z24_UNORM
,
1005 PIPE_FORMAT_Z32_UNORM
,
1006 PIPE_FORMAT_Z32_FLOAT
1008 enum pipe_format int_formats
[] = {
1009 PIPE_FORMAT_R8G8B8A8_SINT
1011 enum pipe_format void_formats
[] = {
1015 consts
->MaxSamples
=
1016 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1018 PIPE_BIND_RENDER_TARGET
);
1020 consts
->MaxImageSamples
=
1021 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1023 PIPE_BIND_SHADER_IMAGE
);
1025 consts
->MaxColorTextureSamples
=
1026 get_max_samples_for_formats(screen
, ARRAY_SIZE(color_formats
),
1027 color_formats
, consts
->MaxSamples
,
1028 PIPE_BIND_SAMPLER_VIEW
);
1030 consts
->MaxDepthTextureSamples
=
1031 get_max_samples_for_formats(screen
, ARRAY_SIZE(depth_formats
),
1032 depth_formats
, consts
->MaxSamples
,
1033 PIPE_BIND_SAMPLER_VIEW
);
1035 consts
->MaxIntegerSamples
=
1036 get_max_samples_for_formats(screen
, ARRAY_SIZE(int_formats
),
1037 int_formats
, consts
->MaxSamples
,
1038 PIPE_BIND_SAMPLER_VIEW
);
1040 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1041 consts
->MaxFramebufferSamples
=
1042 get_max_samples_for_formats(screen
, ARRAY_SIZE(void_formats
),
1044 PIPE_BIND_RENDER_TARGET
);
1046 if (consts
->MaxSamples
== 1) {
1047 /* one sample doesn't really make sense */
1048 consts
->MaxSamples
= 0;
1050 else if (consts
->MaxSamples
>= 2) {
1051 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1052 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1055 if (consts
->MaxSamples
== 0 && screen
->get_param(screen
, PIPE_CAP_FAKE_SW_MSAA
)) {
1056 consts
->FakeSWMSAA
= GL_TRUE
;
1057 extensions
->EXT_framebuffer_multisample
= GL_TRUE
;
1058 extensions
->EXT_framebuffer_multisample_blit_scaled
= GL_TRUE
;
1059 extensions
->ARB_texture_multisample
= GL_TRUE
;
1062 if (consts
->MaxDualSourceDrawBuffers
> 0 &&
1063 !options
->disable_blend_func_extended
)
1064 extensions
->ARB_blend_func_extended
= GL_TRUE
;
1066 if (screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
) ||
1067 extensions
->ARB_timer_query
) {
1068 extensions
->EXT_timer_query
= GL_TRUE
;
1071 if (extensions
->ARB_transform_feedback2
&&
1072 extensions
->ARB_draw_instanced
) {
1073 extensions
->ARB_transform_feedback_instanced
= GL_TRUE
;
1075 if (options
->force_glsl_extensions_warn
)
1076 consts
->ForceGLSLExtensionsWarn
= 1;
1078 if (options
->disable_glsl_line_continuations
)
1079 consts
->DisableGLSLLineContinuations
= 1;
1081 if (options
->allow_glsl_extension_directive_midshader
)
1082 consts
->AllowGLSLExtensionDirectiveMidShader
= GL_TRUE
;
1084 consts
->MinMapBufferAlignment
=
1085 screen
->get_param(screen
, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT
);
1087 if (extensions
->ARB_texture_buffer_object
) {
1088 consts
->MaxTextureBufferSize
=
1089 _min(screen
->get_param(screen
, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE
),
1091 consts
->TextureBufferOffsetAlignment
=
1092 screen
->get_param(screen
, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT
);
1094 if (consts
->TextureBufferOffsetAlignment
)
1095 extensions
->ARB_texture_buffer_range
= GL_TRUE
;
1097 init_format_extensions(screen
, extensions
, tbo_rgb32
,
1098 ARRAY_SIZE(tbo_rgb32
), PIPE_BUFFER
,
1099 PIPE_BIND_SAMPLER_VIEW
);
1102 extensions
->OES_texture_buffer
=
1103 extensions
->ARB_texture_buffer_object
&&
1104 extensions
->ARB_texture_buffer_range
&&
1105 extensions
->ARB_texture_buffer_object_rgb32
&&
1106 extensions
->ARB_shader_image_load_store
;
1108 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1109 * If the number of available texture indirections is very limited, then we
1110 * prefer to disable varying packing rather than run the risk of varying
1111 * packing preventing a shader from running.
1113 if (screen
->get_shader_param(screen
, PIPE_SHADER_FRAGMENT
,
1114 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS
) <= 8) {
1115 /* We can't disable varying packing if transform feedback is available,
1116 * because transform feedback code assumes a packed varying layout.
1118 if (!extensions
->EXT_transform_feedback
)
1119 consts
->DisableVaryingPacking
= GL_TRUE
;
1122 consts
->MaxViewports
= screen
->get_param(screen
, PIPE_CAP_MAX_VIEWPORTS
);
1123 if (consts
->MaxViewports
>= 16) {
1124 if (consts
->GLSLVersion
>= 400) {
1125 consts
->ViewportBounds
.Min
= -32768.0;
1126 consts
->ViewportBounds
.Max
= 32767.0;
1128 consts
->ViewportBounds
.Min
= -16384.0;
1129 consts
->ViewportBounds
.Max
= 16383.0;
1131 extensions
->ARB_viewport_array
= GL_TRUE
;
1132 extensions
->ARB_fragment_layer_viewport
= GL_TRUE
;
1133 if (extensions
->AMD_vertex_shader_layer
)
1134 extensions
->AMD_vertex_shader_viewport_index
= GL_TRUE
;
1137 if (extensions
->AMD_vertex_shader_layer
&&
1138 extensions
->AMD_vertex_shader_viewport_index
&&
1139 screen
->get_param(screen
, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT
))
1140 extensions
->ARB_shader_viewport_layer_array
= GL_TRUE
;
1142 /* ARB_framebuffer_no_attachments */
1143 if (screen
->get_param(screen
, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT
) &&
1144 ((consts
->MaxSamples
>= 4 && consts
->MaxFramebufferLayers
>= 2048) ||
1145 (consts
->MaxFramebufferSamples
>= consts
->MaxSamples
&&
1146 consts
->MaxFramebufferLayers
>= consts
->MaxArrayTextureLayers
)))
1147 extensions
->ARB_framebuffer_no_attachments
= GL_TRUE
;
1149 /* GL_ARB_ES3_compatibility.
1151 * Assume that ES3 is supported if GLSL 3.30 is supported.
1152 * (OpenGL 3.3 is a requirement for that extension.)
1154 if (consts
->GLSLVersion
>= 330 &&
1155 /* Requirements for ETC2 emulation. */
1156 screen
->is_format_supported(screen
, PIPE_FORMAT_R8G8B8A8_UNORM
,
1158 PIPE_BIND_SAMPLER_VIEW
) &&
1159 screen
->is_format_supported(screen
, PIPE_FORMAT_B8G8R8A8_SRGB
,
1161 PIPE_BIND_SAMPLER_VIEW
) &&
1162 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_UNORM
,
1164 PIPE_BIND_SAMPLER_VIEW
) &&
1165 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_UNORM
,
1167 PIPE_BIND_SAMPLER_VIEW
) &&
1168 screen
->is_format_supported(screen
, PIPE_FORMAT_R16_SNORM
,
1170 PIPE_BIND_SAMPLER_VIEW
) &&
1171 screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16_SNORM
,
1173 PIPE_BIND_SAMPLER_VIEW
)) {
1174 extensions
->ARB_ES3_compatibility
= GL_TRUE
;
1177 #ifdef HAVE_ST_VDPAU
1178 if (screen
->get_video_param
&&
1179 screen
->get_video_param(screen
, PIPE_VIDEO_PROFILE_UNKNOWN
,
1180 PIPE_VIDEO_ENTRYPOINT_BITSTREAM
,
1181 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED
)) {
1182 extensions
->NV_vdpau_interop
= GL_TRUE
;
1186 if (screen
->get_param(screen
, PIPE_CAP_DOUBLES
)) {
1187 extensions
->ARB_gpu_shader_fp64
= GL_TRUE
;
1188 extensions
->ARB_vertex_attrib_64bit
= GL_TRUE
;
1191 if ((ST_DEBUG
& DEBUG_GREMEDY
) &&
1192 screen
->get_param(screen
, PIPE_CAP_STRING_MARKER
))
1193 extensions
->GREMEDY_string_marker
= GL_TRUE
;
1195 if (screen
->get_param(screen
, PIPE_CAP_COMPUTE
)) {
1196 int compute_supported_irs
=
1197 screen
->get_shader_param(screen
, PIPE_SHADER_COMPUTE
,
1198 PIPE_SHADER_CAP_SUPPORTED_IRS
);
1199 if (compute_supported_irs
& (1 << PIPE_SHADER_IR_TGSI
)) {
1200 uint64_t grid_size
[3], block_size
[3];
1201 uint64_t max_local_size
, max_threads_per_block
;
1203 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1204 PIPE_COMPUTE_CAP_MAX_GRID_SIZE
, grid_size
);
1205 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1206 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE
, block_size
);
1207 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1208 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK
,
1209 &max_threads_per_block
);
1210 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1211 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE
,
1214 consts
->MaxComputeWorkGroupInvocations
= max_threads_per_block
;
1215 consts
->MaxComputeSharedMemorySize
= max_local_size
;
1217 for (i
= 0; i
< 3; i
++) {
1218 consts
->MaxComputeWorkGroupCount
[i
] = grid_size
[i
];
1219 consts
->MaxComputeWorkGroupSize
[i
] = block_size
[i
];
1222 extensions
->ARB_compute_shader
=
1223 extensions
->ARB_shader_image_load_store
&&
1224 extensions
->ARB_shader_atomic_counters
;
1226 if (extensions
->ARB_compute_shader
) {
1227 uint64_t max_variable_threads_per_block
= 0;
1229 screen
->get_compute_param(screen
, PIPE_SHADER_IR_TGSI
,
1230 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK
,
1231 &max_variable_threads_per_block
);
1233 for (i
= 0; i
< 3; i
++) {
1234 /* Clamp the values to avoid having a local work group size
1235 * greater than the maximum number of invocations.
1237 consts
->MaxComputeVariableGroupSize
[i
] =
1238 MIN2(consts
->MaxComputeWorkGroupSize
[i
],
1239 max_variable_threads_per_block
);
1241 consts
->MaxComputeVariableGroupInvocations
=
1242 max_variable_threads_per_block
;
1244 extensions
->ARB_compute_variable_group_size
=
1245 max_variable_threads_per_block
> 0;
1250 extensions
->KHR_robustness
= extensions
->ARB_robust_buffer_access_behavior
;
1252 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1253 * there's no clean way of telling whether we would support ES 3.1 from
1254 * here, so copy the condition from compute_version_es2 here. A lot of
1255 * these are redunant, but simpler to just have a (near-)exact copy here.
1257 extensions
->ARB_ES3_1_compatibility
=
1258 extensions
->ARB_ES3_compatibility
&&
1259 extensions
->ARB_arrays_of_arrays
&&
1260 extensions
->ARB_compute_shader
&&
1261 extensions
->ARB_draw_indirect
&&
1262 extensions
->ARB_explicit_uniform_location
&&
1263 extensions
->ARB_framebuffer_no_attachments
&&
1264 extensions
->ARB_shader_atomic_counters
&&
1265 extensions
->ARB_shader_image_load_store
&&
1266 extensions
->ARB_shader_image_size
&&
1267 extensions
->ARB_shader_storage_buffer_object
&&
1268 extensions
->ARB_shading_language_packing
&&
1269 extensions
->ARB_stencil_texturing
&&
1270 extensions
->ARB_texture_multisample
&&
1271 extensions
->ARB_gpu_shader5
&&
1272 extensions
->EXT_shader_integer_mix
;
1274 extensions
->OES_texture_cube_map_array
=
1275 extensions
->ARB_ES3_1_compatibility
&&
1276 extensions
->OES_geometry_shader
&&
1277 extensions
->ARB_texture_cube_map_array
;
1279 extensions
->OES_viewport_array
=
1280 extensions
->ARB_ES3_1_compatibility
&&
1281 extensions
->OES_geometry_shader
&&
1282 extensions
->ARB_viewport_array
;
1284 extensions
->OES_primitive_bounding_box
= extensions
->ARB_ES3_1_compatibility
;
1285 consts
->NoPrimitiveBoundingBoxOutput
= true;
1287 extensions
->ANDROID_extension_pack_es31a
=
1288 extensions
->KHR_texture_compression_astc_ldr
&&
1289 extensions
->KHR_blend_equation_advanced
&&
1290 extensions
->OES_sample_variables
&&
1291 extensions
->ARB_shader_image_load_store
&&
1292 extensions
->ARB_texture_stencil8
&&
1293 extensions
->ARB_texture_multisample
&&
1294 extensions
->OES_copy_image
&&
1295 extensions
->ARB_draw_buffers_blend
&&
1296 extensions
->OES_geometry_shader
&&
1297 extensions
->ARB_gpu_shader5
&&
1298 extensions
->OES_primitive_bounding_box
&&
1299 extensions
->ARB_tessellation_shader
&&
1300 extensions
->ARB_texture_border_clamp
&&
1301 extensions
->OES_texture_buffer
&&
1302 extensions
->OES_texture_cube_map_array
&&
1303 extensions
->EXT_texture_sRGB_decode
;
1305 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1306 * before overall versions are selected. Also it's actually a subset of ES
1307 * 3.2, since it doesn't require ASTC or advanced blending.
1309 extensions
->ARB_ES3_2_compatibility
=
1310 extensions
->ARB_ES3_1_compatibility
&&
1311 extensions
->KHR_robustness
&&
1312 extensions
->ARB_copy_image
&&
1313 extensions
->ARB_draw_buffers_blend
&&
1314 extensions
->ARB_draw_elements_base_vertex
&&
1315 extensions
->OES_geometry_shader
&&
1316 extensions
->ARB_gpu_shader5
&&
1317 extensions
->ARB_sample_shading
&&
1318 extensions
->ARB_tessellation_shader
&&
1319 extensions
->ARB_texture_border_clamp
&&
1320 extensions
->OES_texture_buffer
&&
1321 extensions
->ARB_texture_cube_map_array
&&
1322 extensions
->ARB_texture_stencil8
&&
1323 extensions
->ARB_texture_multisample
;