summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/angle/src/libANGLE/ContextState.cpp
blob: d109cca76da1a4e92079256beb89ec396e5172e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
//
// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// Data.cpp: Container class for all GL relevant state, caps and objects

#include "libANGLE/ContextState.h"

#include "libANGLE/Framebuffer.h"
#include "libANGLE/ResourceManager.h"

namespace gl
{

namespace
{

template <typename T>
using ContextStateMember = T *(ContextState::*);

template <typename T>
T *AllocateOrGetSharedResourceManager(const ContextState *shareContextState,
                                      ContextStateMember<T> member)
{
    if (shareContextState)
    {
        T *resourceManager = (*shareContextState).*member;
        resourceManager->addRef();
        return resourceManager;
    }
    else
    {
        return new T();
    }
}

TextureManager *AllocateOrGetSharedTextureManager(const ContextState *shareContextState,
                                                  TextureManager *shareTextures,
                                                  ContextStateMember<TextureManager> member)
{
    if (shareContextState)
    {
        TextureManager *textureManager = (*shareContextState).*member;
        ASSERT(shareTextures == nullptr || textureManager == shareTextures);
        textureManager->addRef();
        return textureManager;
    }
    else if (shareTextures)
    {
        TextureManager *textureManager = shareTextures;
        textureManager->addRef();
        return textureManager;
    }
    else
    {
        return new TextureManager();
    }
}

}  // anonymous namespace

ContextState::ContextState(ContextID contextIn,
                           const ContextState *shareContextState,
                           TextureManager *shareTextures,
                           const Version &clientVersion,
                           State *stateIn,
                           const Caps &capsIn,
                           const TextureCapsMap &textureCapsIn,
                           const Extensions &extensionsIn,
                           const Limitations &limitationsIn)
    : mClientVersion(clientVersion),
      mContext(contextIn),
      mState(stateIn),
      mCaps(capsIn),
      mTextureCaps(textureCapsIn),
      mExtensions(extensionsIn),
      mLimitations(limitationsIn),
      mBuffers(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mBuffers)),
      mShaderPrograms(
          AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mShaderPrograms)),
      mTextures(AllocateOrGetSharedTextureManager(shareContextState,
                                                  shareTextures,
                                                  &ContextState::mTextures)),
      mRenderbuffers(
          AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mRenderbuffers)),
      mSamplers(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mSamplers)),
      mSyncs(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mSyncs)),
      mPaths(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mPaths)),
      mFramebuffers(new FramebufferManager()),
      mPipelines(new ProgramPipelineManager())
{
}

ContextState::~ContextState()
{
    // Handles are released by the Context.
}

bool ContextState::isWebGL() const
{
    return mExtensions.webglCompatibility;
}

bool ContextState::isWebGL1() const
{
    return (isWebGL() && mClientVersion.major == 2);
}

const TextureCaps &ContextState::getTextureCap(GLenum internalFormat) const
{
    return mTextureCaps.get(internalFormat);
}

ValidationContext::ValidationContext(const ValidationContext *shareContext,
                                     TextureManager *shareTextures,
                                     const Version &clientVersion,
                                     State *state,
                                     const Caps &caps,
                                     const TextureCapsMap &textureCaps,
                                     const Extensions &extensions,
                                     const Limitations &limitations,
                                     bool skipValidation)
    : mState(reinterpret_cast<ContextID>(this),
             shareContext ? &shareContext->mState : nullptr,
             shareTextures,
             clientVersion,
             state,
             caps,
             textureCaps,
             extensions,
             limitations),
      mSkipValidation(skipValidation),
      mDisplayTextureShareGroup(shareTextures != nullptr)
{
}

ValidationContext::~ValidationContext()
{
}

bool ValidationContext::getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams)
{
    // Please note: the query type returned for DEPTH_CLEAR_VALUE in this implementation
    // is FLOAT rather than INT, as would be suggested by the GL ES 2.0 spec. This is due
    // to the fact that it is stored internally as a float, and so would require conversion
    // if returned from Context::getIntegerv. Since this conversion is already implemented
    // in the case that one calls glGetIntegerv to retrieve a float-typed state variable, we
    // place DEPTH_CLEAR_VALUE with the floats. This should make no difference to the calling
    // application.
    switch (pname)
    {
        case GL_COMPRESSED_TEXTURE_FORMATS:
        {
            *type      = GL_INT;
            *numParams = static_cast<unsigned int>(getCaps().compressedTextureFormats.size());
            return true;
        }
        case GL_SHADER_BINARY_FORMATS:
        {
            *type      = GL_INT;
            *numParams = static_cast<unsigned int>(getCaps().shaderBinaryFormats.size());
            return true;
        }

        case GL_MAX_VERTEX_ATTRIBS:
        case GL_MAX_VERTEX_UNIFORM_VECTORS:
        case GL_MAX_VARYING_VECTORS:
        case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
        case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
        case GL_MAX_TEXTURE_IMAGE_UNITS:
        case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
        case GL_MAX_RENDERBUFFER_SIZE:
        case GL_NUM_SHADER_BINARY_FORMATS:
        case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
        case GL_ARRAY_BUFFER_BINDING:
        case GL_FRAMEBUFFER_BINDING:
        case GL_RENDERBUFFER_BINDING:
        case GL_CURRENT_PROGRAM:
        case GL_PACK_ALIGNMENT:
        case GL_UNPACK_ALIGNMENT:
        case GL_GENERATE_MIPMAP_HINT:
        case GL_RED_BITS:
        case GL_GREEN_BITS:
        case GL_BLUE_BITS:
        case GL_ALPHA_BITS:
        case GL_DEPTH_BITS:
        case GL_STENCIL_BITS:
        case GL_ELEMENT_ARRAY_BUFFER_BINDING:
        case GL_CULL_FACE_MODE:
        case GL_FRONT_FACE:
        case GL_ACTIVE_TEXTURE:
        case GL_STENCIL_FUNC:
        case GL_STENCIL_VALUE_MASK:
        case GL_STENCIL_REF:
        case GL_STENCIL_FAIL:
        case GL_STENCIL_PASS_DEPTH_FAIL:
        case GL_STENCIL_PASS_DEPTH_PASS:
        case GL_STENCIL_BACK_FUNC:
        case GL_STENCIL_BACK_VALUE_MASK:
        case GL_STENCIL_BACK_REF:
        case GL_STENCIL_BACK_FAIL:
        case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
        case GL_STENCIL_BACK_PASS_DEPTH_PASS:
        case GL_DEPTH_FUNC:
        case GL_BLEND_SRC_RGB:
        case GL_BLEND_SRC_ALPHA:
        case GL_BLEND_DST_RGB:
        case GL_BLEND_DST_ALPHA:
        case GL_BLEND_EQUATION_RGB:
        case GL_BLEND_EQUATION_ALPHA:
        case GL_STENCIL_WRITEMASK:
        case GL_STENCIL_BACK_WRITEMASK:
        case GL_STENCIL_CLEAR_VALUE:
        case GL_SUBPIXEL_BITS:
        case GL_MAX_TEXTURE_SIZE:
        case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
        case GL_SAMPLE_BUFFERS:
        case GL_SAMPLES:
        case GL_IMPLEMENTATION_COLOR_READ_TYPE:
        case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
        case GL_TEXTURE_BINDING_2D:
        case GL_TEXTURE_BINDING_CUBE_MAP:
        case GL_RESET_NOTIFICATION_STRATEGY_EXT:
        {
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_PACK_REVERSE_ROW_ORDER_ANGLE:
        {
            if (!getExtensions().packReverseRowOrder)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_MAX_RECTANGLE_TEXTURE_SIZE_ANGLE:
        case GL_TEXTURE_BINDING_RECTANGLE_ANGLE:
        {
            if (!getExtensions().textureRectangle)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_MAX_DRAW_BUFFERS_EXT:
        case GL_MAX_COLOR_ATTACHMENTS_EXT:
        {
            if ((getClientMajorVersion() < 3) && !getExtensions().drawBuffers)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_MAX_VIEWPORT_DIMS:
        {
            *type      = GL_INT;
            *numParams = 2;
            return true;
        }
        case GL_VIEWPORT:
        case GL_SCISSOR_BOX:
        {
            *type      = GL_INT;
            *numParams = 4;
            return true;
        }
        case GL_SHADER_COMPILER:
        case GL_SAMPLE_COVERAGE_INVERT:
        case GL_DEPTH_WRITEMASK:
        case GL_CULL_FACE:                 // CULL_FACE through DITHER are natural to IsEnabled,
        case GL_POLYGON_OFFSET_FILL:       // but can be retrieved through the Get{Type}v queries.
        case GL_SAMPLE_ALPHA_TO_COVERAGE:  // For this purpose, they are treated here as
                                           // bool-natural
        case GL_SAMPLE_COVERAGE:
        case GL_SCISSOR_TEST:
        case GL_STENCIL_TEST:
        case GL_DEPTH_TEST:
        case GL_BLEND:
        case GL_DITHER:
        case GL_CONTEXT_ROBUST_ACCESS_EXT:
        {
            *type      = GL_BOOL;
            *numParams = 1;
            return true;
        }
        case GL_COLOR_WRITEMASK:
        {
            *type      = GL_BOOL;
            *numParams = 4;
            return true;
        }
        case GL_POLYGON_OFFSET_FACTOR:
        case GL_POLYGON_OFFSET_UNITS:
        case GL_SAMPLE_COVERAGE_VALUE:
        case GL_DEPTH_CLEAR_VALUE:
        case GL_LINE_WIDTH:
        {
            *type      = GL_FLOAT;
            *numParams = 1;
            return true;
        }
        case GL_ALIASED_LINE_WIDTH_RANGE:
        case GL_ALIASED_POINT_SIZE_RANGE:
        case GL_DEPTH_RANGE:
        {
            *type      = GL_FLOAT;
            *numParams = 2;
            return true;
        }
        case GL_COLOR_CLEAR_VALUE:
        case GL_BLEND_COLOR:
        {
            *type      = GL_FLOAT;
            *numParams = 4;
            return true;
        }
        case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT:
            if (!getExtensions().textureFilterAnisotropic)
            {
                return false;
            }
            *type      = GL_FLOAT;
            *numParams = 1;
            return true;
        case GL_TIMESTAMP_EXT:
            if (!getExtensions().disjointTimerQuery)
            {
                return false;
            }
            *type      = GL_INT_64_ANGLEX;
            *numParams = 1;
            return true;
        case GL_GPU_DISJOINT_EXT:
            if (!getExtensions().disjointTimerQuery)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_COVERAGE_MODULATION_CHROMIUM:
            if (!getExtensions().framebufferMixedSamples)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_TEXTURE_BINDING_EXTERNAL_OES:
            if (!getExtensions().eglStreamConsumerExternal && !getExtensions().eglImageExternal)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
    }

    if (getExtensions().debug)
    {
        switch (pname)
        {
            case GL_DEBUG_LOGGED_MESSAGES:
            case GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH:
            case GL_DEBUG_GROUP_STACK_DEPTH:
            case GL_MAX_DEBUG_MESSAGE_LENGTH:
            case GL_MAX_DEBUG_LOGGED_MESSAGES:
            case GL_MAX_DEBUG_GROUP_STACK_DEPTH:
            case GL_MAX_LABEL_LENGTH:
                *type      = GL_INT;
                *numParams = 1;
                return true;

            case GL_DEBUG_OUTPUT_SYNCHRONOUS:
            case GL_DEBUG_OUTPUT:
                *type      = GL_BOOL;
                *numParams = 1;
                return true;
        }
    }

    if (getExtensions().multisampleCompatibility)
    {
        switch (pname)
        {
            case GL_MULTISAMPLE_EXT:
            case GL_SAMPLE_ALPHA_TO_ONE_EXT:
                *type      = GL_BOOL;
                *numParams = 1;
                return true;
        }
    }

    if (getExtensions().pathRendering)
    {
        switch (pname)
        {
            case GL_PATH_MODELVIEW_MATRIX_CHROMIUM:
            case GL_PATH_PROJECTION_MATRIX_CHROMIUM:
                *type = GL_FLOAT;
                *numParams = 16;
                return true;
        }
    }

    if (getExtensions().bindGeneratesResource)
    {
        switch (pname)
        {
            case GL_BIND_GENERATES_RESOURCE_CHROMIUM:
                *type      = GL_BOOL;
                *numParams = 1;
                return true;
        }
    }

    if (getExtensions().clientArrays)
    {
        switch (pname)
        {
            case GL_CLIENT_ARRAYS_ANGLE:
                *type      = GL_BOOL;
                *numParams = 1;
                return true;
        }
    }

    if (getExtensions().sRGBWriteControl)
    {
        switch (pname)
        {
            case GL_FRAMEBUFFER_SRGB_EXT:
                *type      = GL_BOOL;
                *numParams = 1;
                return true;
        }
    }

    if (getExtensions().robustResourceInitialization &&
        pname == GL_ROBUST_RESOURCE_INITIALIZATION_ANGLE)
    {
        *type      = GL_BOOL;
        *numParams = 1;
        return true;
    }

    if (getExtensions().programCacheControl && pname == GL_PROGRAM_CACHE_ENABLED_ANGLE)
    {
        *type      = GL_BOOL;
        *numParams = 1;
        return true;
    }

    // Check for ES3.0+ parameter names which are also exposed as ES2 extensions
    switch (pname)
    {
        // case GL_DRAW_FRAMEBUFFER_BINDING_ANGLE  // equivalent to FRAMEBUFFER_BINDING
        case GL_READ_FRAMEBUFFER_BINDING_ANGLE:
            if ((getClientMajorVersion() < 3) && !getExtensions().framebufferBlit)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;

        case GL_NUM_PROGRAM_BINARY_FORMATS_OES:
            if ((getClientMajorVersion() < 3) && !getExtensions().getProgramBinary)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;

        case GL_PROGRAM_BINARY_FORMATS_OES:
            if ((getClientMajorVersion() < 3) && !getExtensions().getProgramBinary)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = static_cast<unsigned int>(getCaps().programBinaryFormats.size());
            return true;

        case GL_PACK_ROW_LENGTH:
        case GL_PACK_SKIP_ROWS:
        case GL_PACK_SKIP_PIXELS:
            if ((getClientMajorVersion() < 3) && !getExtensions().packSubimage)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_UNPACK_ROW_LENGTH:
        case GL_UNPACK_SKIP_ROWS:
        case GL_UNPACK_SKIP_PIXELS:
            if ((getClientMajorVersion() < 3) && !getExtensions().unpackSubimage)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_VERTEX_ARRAY_BINDING:
            if ((getClientMajorVersion() < 3) && !getExtensions().vertexArrayObject)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_PIXEL_PACK_BUFFER_BINDING:
        case GL_PIXEL_UNPACK_BUFFER_BINDING:
            if ((getClientMajorVersion() < 3) && !getExtensions().pixelBufferObject)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_MAX_SAMPLES:
        {
            static_assert(GL_MAX_SAMPLES_ANGLE == GL_MAX_SAMPLES,
                          "GL_MAX_SAMPLES_ANGLE not equal to GL_MAX_SAMPLES");
            if ((getClientMajorVersion() < 3) && !getExtensions().framebufferMultisample)
            {
                return false;
            }
            *type      = GL_INT;
            *numParams = 1;
            return true;

            case GL_FRAGMENT_SHADER_DERIVATIVE_HINT:
                if ((getClientMajorVersion() < 3) && !getExtensions().standardDerivatives)
                {
                    return false;
                }
                *type      = GL_INT;
                *numParams = 1;
                return true;
        }
    }

    if (pname >= GL_DRAW_BUFFER0_EXT && pname <= GL_DRAW_BUFFER15_EXT)
    {
        if ((getClientVersion() < Version(3, 0)) && !getExtensions().drawBuffers)
        {
            return false;
        }
        *type      = GL_INT;
        *numParams = 1;
        return true;
    }

    if (getExtensions().multiview && pname == GL_MAX_VIEWS_ANGLE)
    {
        *type      = GL_INT;
        *numParams = 1;
        return true;
    }

    if (getClientVersion() < Version(3, 0))
    {
        return false;
    }

    // Check for ES3.0+ parameter names
    switch (pname)
    {
        case GL_MAX_UNIFORM_BUFFER_BINDINGS:
        case GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT:
        case GL_UNIFORM_BUFFER_BINDING:
        case GL_TRANSFORM_FEEDBACK_BINDING:
        case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
        case GL_COPY_READ_BUFFER_BINDING:
        case GL_COPY_WRITE_BUFFER_BINDING:
        case GL_SAMPLER_BINDING:
        case GL_READ_BUFFER:
        case GL_TEXTURE_BINDING_3D:
        case GL_TEXTURE_BINDING_2D_ARRAY:
        case GL_MAX_3D_TEXTURE_SIZE:
        case GL_MAX_ARRAY_TEXTURE_LAYERS:
        case GL_MAX_VERTEX_UNIFORM_BLOCKS:
        case GL_MAX_FRAGMENT_UNIFORM_BLOCKS:
        case GL_MAX_COMBINED_UNIFORM_BLOCKS:
        case GL_MAX_VERTEX_OUTPUT_COMPONENTS:
        case GL_MAX_FRAGMENT_INPUT_COMPONENTS:
        case GL_MAX_VARYING_COMPONENTS:
        case GL_MAX_VERTEX_UNIFORM_COMPONENTS:
        case GL_MAX_FRAGMENT_UNIFORM_COMPONENTS:
        case GL_MIN_PROGRAM_TEXEL_OFFSET:
        case GL_MAX_PROGRAM_TEXEL_OFFSET:
        case GL_NUM_EXTENSIONS:
        case GL_MAJOR_VERSION:
        case GL_MINOR_VERSION:
        case GL_MAX_ELEMENTS_INDICES:
        case GL_MAX_ELEMENTS_VERTICES:
        case GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS:
        case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS:
        case GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS:
        case GL_UNPACK_IMAGE_HEIGHT:
        case GL_UNPACK_SKIP_IMAGES:
        {
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }

        case GL_MAX_ELEMENT_INDEX:
        case GL_MAX_UNIFORM_BLOCK_SIZE:
        case GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS:
        case GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS:
        case GL_MAX_SERVER_WAIT_TIMEOUT:
        {
            *type      = GL_INT_64_ANGLEX;
            *numParams = 1;
            return true;
        }

        case GL_TRANSFORM_FEEDBACK_ACTIVE:
        case GL_TRANSFORM_FEEDBACK_PAUSED:
        case GL_PRIMITIVE_RESTART_FIXED_INDEX:
        case GL_RASTERIZER_DISCARD:
        {
            *type      = GL_BOOL;
            *numParams = 1;
            return true;
        }

        case GL_MAX_TEXTURE_LOD_BIAS:
        {
            *type      = GL_FLOAT;
            *numParams = 1;
            return true;
        }
    }

    if (getExtensions().requestExtension)
    {
        switch (pname)
        {
            case GL_NUM_REQUESTABLE_EXTENSIONS_ANGLE:
                *type      = GL_INT;
                *numParams = 1;
                return true;
        }
    }

    if (getClientVersion() < Version(3, 1))
    {
        return false;
    }

    switch (pname)
    {
        case GL_ATOMIC_COUNTER_BUFFER_BINDING:
        case GL_DRAW_INDIRECT_BUFFER_BINDING:
        case GL_MAX_FRAMEBUFFER_WIDTH:
        case GL_MAX_FRAMEBUFFER_HEIGHT:
        case GL_MAX_FRAMEBUFFER_SAMPLES:
        case GL_MAX_SAMPLE_MASK_WORDS:
        case GL_MAX_COLOR_TEXTURE_SAMPLES:
        case GL_MAX_DEPTH_TEXTURE_SAMPLES:
        case GL_MAX_INTEGER_SAMPLES:
        case GL_MAX_VERTEX_ATTRIB_RELATIVE_OFFSET:
        case GL_MAX_VERTEX_ATTRIB_BINDINGS:
        case GL_MAX_VERTEX_ATTRIB_STRIDE:
        case GL_MAX_VERTEX_ATOMIC_COUNTER_BUFFERS:
        case GL_MAX_VERTEX_ATOMIC_COUNTERS:
        case GL_MAX_VERTEX_IMAGE_UNIFORMS:
        case GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS:
        case GL_MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS:
        case GL_MAX_FRAGMENT_ATOMIC_COUNTERS:
        case GL_MAX_FRAGMENT_IMAGE_UNIFORMS:
        case GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS:
        case GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET:
        case GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET:
        case GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS:
        case GL_MAX_COMPUTE_UNIFORM_BLOCKS:
        case GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS:
        case GL_MAX_COMPUTE_SHARED_MEMORY_SIZE:
        case GL_MAX_COMPUTE_UNIFORM_COMPONENTS:
        case GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS:
        case GL_MAX_COMPUTE_ATOMIC_COUNTERS:
        case GL_MAX_COMPUTE_IMAGE_UNIFORMS:
        case GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS:
        case GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS:
        case GL_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
        case GL_MAX_UNIFORM_LOCATIONS:
        case GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS:
        case GL_MAX_ATOMIC_COUNTER_BUFFER_SIZE:
        case GL_MAX_COMBINED_ATOMIC_COUNTER_BUFFERS:
        case GL_MAX_COMBINED_ATOMIC_COUNTERS:
        case GL_MAX_IMAGE_UNITS:
        case GL_MAX_COMBINED_IMAGE_UNIFORMS:
        case GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS:
        case GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS:
        case GL_SHADER_STORAGE_BUFFER_BINDING:
        case GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT:
        case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
            *type      = GL_INT;
            *numParams = 1;
            return true;
        case GL_MAX_SHADER_STORAGE_BLOCK_SIZE:
            *type      = GL_INT_64_ANGLEX;
            *numParams = 1;
            return true;
        case GL_SAMPLE_MASK:
            *type      = GL_BOOL;
            *numParams = 1;
            return true;
    }

    return false;
}

bool ValidationContext::getIndexedQueryParameterInfo(GLenum target,
                                                     GLenum *type,
                                                     unsigned int *numParams)
{
    if (getClientVersion() < Version(3, 0))
    {
        return false;
    }

    switch (target)
    {
        case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
        case GL_UNIFORM_BUFFER_BINDING:
        {
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_TRANSFORM_FEEDBACK_BUFFER_START:
        case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
        case GL_UNIFORM_BUFFER_START:
        case GL_UNIFORM_BUFFER_SIZE:
        {
            *type      = GL_INT_64_ANGLEX;
            *numParams = 1;
            return true;
        }
    }

    if (getClientVersion() < Version(3, 1))
    {
        return false;
    }

    switch (target)
    {
        case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
        case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
        case GL_ATOMIC_COUNTER_BUFFER_BINDING:
        case GL_SHADER_STORAGE_BUFFER_BINDING:
        case GL_VERTEX_BINDING_BUFFER:
        case GL_VERTEX_BINDING_DIVISOR:
        case GL_VERTEX_BINDING_OFFSET:
        case GL_VERTEX_BINDING_STRIDE:
        case GL_SAMPLE_MASK_VALUE:
        {
            *type      = GL_INT;
            *numParams = 1;
            return true;
        }
        case GL_ATOMIC_COUNTER_BUFFER_START:
        case GL_ATOMIC_COUNTER_BUFFER_SIZE:
        case GL_SHADER_STORAGE_BUFFER_START:
        case GL_SHADER_STORAGE_BUFFER_SIZE:
        {
            *type      = GL_INT_64_ANGLEX;
            *numParams = 1;
            return true;
        }
    }

    return false;
}

Program *ValidationContext::getProgram(GLuint handle) const
{
    return mState.mShaderPrograms->getProgram(handle);
}

Shader *ValidationContext::getShader(GLuint handle) const
{
    return mState.mShaderPrograms->getShader(handle);
}

bool ValidationContext::isTextureGenerated(GLuint texture) const
{
    return mState.mTextures->isHandleGenerated(texture);
}

bool ValidationContext::isBufferGenerated(GLuint buffer) const
{
    return mState.mBuffers->isHandleGenerated(buffer);
}

bool ValidationContext::isRenderbufferGenerated(GLuint renderbuffer) const
{
    return mState.mRenderbuffers->isHandleGenerated(renderbuffer);
}

bool ValidationContext::isFramebufferGenerated(GLuint framebuffer) const
{
    return mState.mFramebuffers->isHandleGenerated(framebuffer);
}

bool ValidationContext::isProgramPipelineGenerated(GLuint pipeline) const
{
    return mState.mPipelines->isHandleGenerated(pipeline);
}

bool ValidationContext::usingDisplayTextureShareGroup() const
{
    return mDisplayTextureShareGroup;
}

GLenum ValidationContext::getConvertedRenderbufferFormat(GLenum internalformat) const
{
    return mState.mExtensions.webglCompatibility && mState.mClientVersion.major == 2 &&
                   internalformat == GL_DEPTH_STENCIL
               ? GL_DEPTH24_STENCIL8
               : internalformat;
}

}  // namespace gl