aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/PictureTest.cpp
blob: 0dc3bfe7b6374ac86a20b6424cf91da79bd89073 (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
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
/*
 * Copyright 2012 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkBigPicture.h"
#include "SkBBoxHierarchy.h"
#include "SkBlurImageFilter.h"
#include "SkCanvas.h"
#include "SkColorMatrixFilter.h"
#include "SkColorPriv.h"
#include "SkDashPathEffect.h"
#include "SkData.h"
#include "SkImageGenerator.h"
#include "SkImageEncoder.h"
#include "SkImageGenerator.h"
#include "SkMD5.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPictureAnalyzer.h"
#include "SkPictureRecorder.h"
#include "SkPixelRef.h"
#include "SkPixelSerializer.h"
#include "SkMiniRecorder.h"
#include "SkRRect.h"
#include "SkRandom.h"
#include "SkRecord.h"
#include "SkShader.h"
#include "SkStream.h"
#include "sk_tool_utils.h"

#include "Test.h"

#include "SkLumaColorFilter.h"
#include "SkColorFilterImageFilter.h"

static void make_bm(SkBitmap* bm, int w, int h, SkColor color, bool immutable) {
    bm->allocN32Pixels(w, h);
    bm->eraseColor(color);
    if (immutable) {
        bm->setImmutable();
    }
}

// For a while willPlayBackBitmaps() ignored SkImages and just looked for SkBitmaps.
static void test_images_are_found_by_willPlayBackBitmaps(skiatest::Reporter* reporter) {
    // We just need _some_ SkImage
    const SkPMColor pixel = 0;
    const SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
    sk_sp<SkImage> image(SkImage::MakeRasterCopy(SkPixmap(info, &pixel, sizeof(pixel))));

    SkPictureRecorder recorder;
    recorder.beginRecording(100,100)->drawImage(image, 0,0);
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

    REPORTER_ASSERT(reporter, picture->willPlayBackBitmaps());
}

/* Hit a few SkPicture::Analysis cases not handled elsewhere. */
static void test_analysis(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;

    SkCanvas* canvas = recorder.beginRecording(100, 100);
    {
        canvas->drawRect(SkRect::MakeWH(10, 10), SkPaint ());
    }
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    REPORTER_ASSERT(reporter, !picture->willPlayBackBitmaps());

    canvas = recorder.beginRecording(100, 100);
    {
        SkPaint paint;
        // CreateBitmapShader is too smart for us; an empty (or 1x1) bitmap shader
        // gets optimized into a non-bitmap form, so we create a 2x2 bitmap here.
        SkBitmap bitmap;
        bitmap.allocPixels(SkImageInfo::MakeN32Premul(2, 2));
        bitmap.eraseColor(SK_ColorBLUE);
        *(bitmap.getAddr32(0, 0)) = SK_ColorGREEN;
        paint.setShader(SkShader::MakeBitmapShader(bitmap, SkShader::kClamp_TileMode,
                                                   SkShader::kClamp_TileMode));
        REPORTER_ASSERT(reporter, paint.getShader()->isAImage());

        canvas->drawRect(SkRect::MakeWH(10, 10), paint);
    }
    REPORTER_ASSERT(reporter, recorder.finishRecordingAsPicture()->willPlayBackBitmaps());
}


#ifdef SK_DEBUG
// Ensure that deleting an empty SkPicture does not assert. Asserts only fire
// in debug mode, so only run in debug mode.
static void test_deleting_empty_picture() {
    SkPictureRecorder recorder;
    // Creates an SkPictureRecord
    recorder.beginRecording(0, 0);
    // Turns that into an SkPicture
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    // Ceates a new SkPictureRecord
    recorder.beginRecording(0, 0);
}

// Ensure that serializing an empty picture does not assert. Likewise only runs in debug mode.
static void test_serializing_empty_picture() {
    SkPictureRecorder recorder;
    recorder.beginRecording(0, 0);
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    SkDynamicMemoryWStream stream;
    picture->serialize(&stream);
}
#endif

static void rand_op(SkCanvas* canvas, SkRandom& rand) {
    SkPaint paint;
    SkRect rect = SkRect::MakeWH(50, 50);

    SkScalar unit = rand.nextUScalar1();
    if (unit <= 0.3) {
//        SkDebugf("save\n");
        canvas->save();
    } else if (unit <= 0.6) {
//        SkDebugf("restore\n");
        canvas->restore();
    } else if (unit <= 0.9) {
//        SkDebugf("clip\n");
        canvas->clipRect(rect);
    } else {
//        SkDebugf("draw\n");
        canvas->drawPaint(paint);
    }
}

#if SK_SUPPORT_GPU

static SkPath make_convex_path() {
    SkPath path;
    path.lineTo(100, 0);
    path.lineTo(50, 100);
    path.close();

    return path;
}

static SkPath make_concave_path() {
    SkPath path;
    path.lineTo(50, 50);
    path.lineTo(100, 0);
    path.lineTo(50, 100);
    path.close();

    return path;
}

static void test_gpu_veto(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;

    SkCanvas* canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;
        path.moveTo(0, 0);
        path.lineTo(50, 50);

        SkScalar intervals[] = { 1.0f, 1.0f };
        sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, 2, 0));

        SkPaint paint;
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setPathEffect(dash);

        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    // path effects currently render an SkPicture undesireable for GPU rendering

    const char *reason = nullptr;
    REPORTER_ASSERT(reporter,
        !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization(&reason));
    REPORTER_ASSERT(reporter, reason);

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 50);
        path.lineTo(25, 25);
        path.lineTo(50, 50);
        path.lineTo(50, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // A lot of small AA concave paths should be fine for GPU rendering
    REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 100);
        path.lineTo(50, 50);
        path.lineTo(100, 100);
        path.lineTo(100, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // A lot of large AA concave paths currently render an SkPicture undesireable for GPU rendering
    REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        SkPath path;

        path.moveTo(0, 0);
        path.lineTo(0, 50);
        path.lineTo(25, 25);
        path.lineTo(50, 50);
        path.lineTo(50, 0);
        path.close();
        REPORTER_ASSERT(reporter, !path.isConvex());

        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(0);
        for (int i = 0; i < 50; ++i) {
            canvas->drawPath(path, paint);
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // hairline stroked AA concave paths are fine for GPU rendering
    REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        SkPaint paint;
        SkScalar intervals [] = { 10, 20 };
        paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));

        SkPoint points [2] = { { 0, 0 }, { 100, 0 } };

        for (int i = 0; i < 50; ++i) {
            canvas->drawPoints(SkCanvas::kLines_PointMode, 2, points, paint);
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // fast-path dashed effects are fine for GPU rendering ...
    REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        SkPaint paint;
        SkScalar intervals [] = { 10, 20 };
        paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));

        for (int i = 0; i < 50; ++i) {
            canvas->drawRect(SkRect::MakeWH(10, 10), paint);
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // ... but only when applied to drawPoint() calls
    REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        const SkPath convexClip = make_convex_path();
        const SkPath concaveClip = make_concave_path();

        for (int i = 0; i < 50; ++i) {
            canvas->clipPath(convexClip);
            canvas->clipPath(concaveClip);
            canvas->clipPath(convexClip, kIntersect_SkClipOp, true);
            canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // Convex clips and non-AA concave clips are fine on the GPU.
    REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    canvas = recorder.beginRecording(100, 100);
    {
        const SkPath concaveClip = make_concave_path();
        for (int i = 0; i < 50; ++i) {
            canvas->clipPath(concaveClip, kIntersect_SkClipOp, true);
            canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
        }
    }
    picture = recorder.finishRecordingAsPicture();
    // ... but AA concave clips are not.
    REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());

    // Nest the previous picture inside a new one.
    canvas = recorder.beginRecording(100, 100);
    {
        canvas->drawPicture(picture);
    }
    picture = recorder.finishRecordingAsPicture();
    REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
}

#endif // SK_SUPPORT_GPU

static void set_canvas_to_save_count_4(SkCanvas* canvas) {
    canvas->restoreToCount(1);
    canvas->save();
    canvas->save();
    canvas->save();
}

/**
 * A canvas that records the number of saves, saveLayers and restores.
 */
class SaveCountingCanvas : public SkCanvas {
public:
    SaveCountingCanvas(int width, int height)
        : INHERITED(width, height)
        , fSaveCount(0)
        , fSaveLayerCount(0)
        , fRestoreCount(0){
    }

    SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec& rec) override {
        ++fSaveLayerCount;
        return this->INHERITED::getSaveLayerStrategy(rec);
    }

    void willSave() override {
        ++fSaveCount;
        this->INHERITED::willSave();
    }

    void willRestore() override {
        ++fRestoreCount;
        this->INHERITED::willRestore();
    }

    unsigned int getSaveCount() const { return fSaveCount; }
    unsigned int getSaveLayerCount() const { return fSaveLayerCount; }
    unsigned int getRestoreCount() const { return fRestoreCount; }

private:
    unsigned int fSaveCount;
    unsigned int fSaveLayerCount;
    unsigned int fRestoreCount;

    typedef SkCanvas INHERITED;
};

void check_save_state(skiatest::Reporter* reporter, SkPicture* picture,
                      unsigned int numSaves, unsigned int numSaveLayers,
                      unsigned int numRestores) {
    SaveCountingCanvas canvas(SkScalarCeilToInt(picture->cullRect().width()),
                              SkScalarCeilToInt(picture->cullRect().height()));

    picture->playback(&canvas);

    // Optimizations may have removed these,
    // so expect to have seen no more than num{Saves,SaveLayers,Restores}.
    REPORTER_ASSERT(reporter, numSaves >= canvas.getSaveCount());
    REPORTER_ASSERT(reporter, numSaveLayers >= canvas.getSaveLayerCount());
    REPORTER_ASSERT(reporter, numRestores >= canvas.getRestoreCount());
}

// This class exists so SkPicture can friend it and give it access to
// the 'partialReplay' method.
class SkPictureRecorderReplayTester {
public:
    static sk_sp<SkPicture> Copy(SkPictureRecorder* recorder) {
        SkPictureRecorder recorder2;

        SkCanvas* canvas = recorder2.beginRecording(10, 10);

        recorder->partialReplay(canvas);

        return recorder2.finishRecordingAsPicture();
    }
};

static void create_imbalance(SkCanvas* canvas) {
    SkRect clipRect = SkRect::MakeWH(2, 2);
    SkRect drawRect = SkRect::MakeWH(10, 10);
    canvas->save();
        canvas->clipRect(clipRect, kReplace_SkClipOp);
        canvas->translate(1.0f, 1.0f);
        SkPaint p;
        p.setColor(SK_ColorGREEN);
        canvas->drawRect(drawRect, p);
    // no restore
}

// This tests that replaying a potentially unbalanced picture into a canvas
// doesn't affect the canvas' save count or matrix/clip state.
static void check_balance(skiatest::Reporter* reporter, SkPicture* picture) {
    SkBitmap bm;
    bm.allocN32Pixels(4, 3);
    SkCanvas canvas(bm);

    int beforeSaveCount = canvas.getSaveCount();

    SkMatrix beforeMatrix = canvas.getTotalMatrix();

    SkRect beforeClip = canvas.getLocalClipBounds();

    canvas.drawPicture(picture);

    REPORTER_ASSERT(reporter, beforeSaveCount == canvas.getSaveCount());
    REPORTER_ASSERT(reporter, beforeMatrix == canvas.getTotalMatrix());

    SkRect afterClip = canvas.getLocalClipBounds();

    REPORTER_ASSERT(reporter, afterClip == beforeClip);
}

// Test out SkPictureRecorder::partialReplay
DEF_TEST(PictureRecorder_replay, reporter) {
    // check save/saveLayer state
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(10, 10);

        canvas->saveLayer(nullptr, nullptr);

        sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));

        // The extra save and restore comes from the Copy process.
        check_save_state(reporter, copy.get(), 2, 1, 3);

        canvas->saveLayer(nullptr, nullptr);

        sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());

        check_save_state(reporter, final.get(), 1, 2, 3);

        // The copy shouldn't pick up any operations added after it was made
        check_save_state(reporter, copy.get(), 2, 1, 3);
    }

    // (partially) check leakage of draw ops
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(10, 10);

        SkRect r = SkRect::MakeWH(5, 5);
        SkPaint p;

        canvas->drawRect(r, p);

        sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));

        REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());

        SkBitmap bm;
        make_bm(&bm, 10, 10, SK_ColorRED, true);

        r.offset(5.0f, 5.0f);
        canvas->drawBitmapRect(bm, r, nullptr);

        sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());
        REPORTER_ASSERT(reporter, final->willPlayBackBitmaps());

        REPORTER_ASSERT(reporter, copy->uniqueID() != final->uniqueID());

        // The snapshot shouldn't pick up any operations added after it was made
        REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());
    }

    // Recreate the Android partialReplay test case
    {
        SkPictureRecorder recorder;

        SkCanvas* canvas = recorder.beginRecording(4, 3, nullptr, 0);
        create_imbalance(canvas);

        int expectedSaveCount = canvas->getSaveCount();

        sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));
        check_balance(reporter, copy.get());

        REPORTER_ASSERT(reporter, expectedSaveCount = canvas->getSaveCount());

        // End the recording of source to test the picture finalization
        // process isn't complicated by the partialReplay step
        sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());
    }
}

static void test_unbalanced_save_restores(skiatest::Reporter* reporter) {
    SkCanvas testCanvas(100, 100);
    set_canvas_to_save_count_4(&testCanvas);

    REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());

    SkPaint paint;
    SkRect rect = SkRect::MakeLTRB(-10000000, -10000000, 10000000, 10000000);

    SkPictureRecorder recorder;

    {
        // Create picture with 2 unbalanced saves
        SkCanvas* canvas = recorder.beginRecording(100, 100);
        canvas->save();
        canvas->translate(10, 10);
        canvas->drawRect(rect, paint);
        canvas->save();
        canvas->translate(10, 10);
        canvas->drawRect(rect, paint);
        sk_sp<SkPicture> extraSavePicture(recorder.finishRecordingAsPicture());

        testCanvas.drawPicture(extraSavePicture);
        REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
    }

    set_canvas_to_save_count_4(&testCanvas);

    {
        // Create picture with 2 unbalanced restores
        SkCanvas* canvas = recorder.beginRecording(100, 100);
        canvas->save();
        canvas->translate(10, 10);
        canvas->drawRect(rect, paint);
        canvas->save();
        canvas->translate(10, 10);
        canvas->drawRect(rect, paint);
        canvas->restore();
        canvas->restore();
        canvas->restore();
        canvas->restore();
        sk_sp<SkPicture> extraRestorePicture(recorder.finishRecordingAsPicture());

        testCanvas.drawPicture(extraRestorePicture);
        REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
    }

    set_canvas_to_save_count_4(&testCanvas);

    {
        SkCanvas* canvas = recorder.beginRecording(100, 100);
        canvas->translate(10, 10);
        canvas->drawRect(rect, paint);
        sk_sp<SkPicture> noSavePicture(recorder.finishRecordingAsPicture());

        testCanvas.drawPicture(noSavePicture);
        REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
        REPORTER_ASSERT(reporter, testCanvas.getTotalMatrix().isIdentity());
    }
}

static void test_peephole() {
    SkRandom rand;

    SkPictureRecorder recorder;

    for (int j = 0; j < 100; j++) {
        SkRandom rand2(rand); // remember the seed

        SkCanvas* canvas = recorder.beginRecording(100, 100);

        for (int i = 0; i < 1000; ++i) {
            rand_op(canvas, rand);
        }
        sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

        rand = rand2;
    }

    {
        SkCanvas* canvas = recorder.beginRecording(100, 100);
        SkRect rect = SkRect::MakeWH(50, 50);

        for (int i = 0; i < 100; ++i) {
            canvas->save();
        }
        while (canvas->getSaveCount() > 1) {
            canvas->clipRect(rect);
            canvas->restore();
        }
        sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    }
}

#ifndef SK_DEBUG
// Only test this is in release mode. We deliberately crash in debug mode, since a valid caller
// should never do this.
static void test_bad_bitmap() {
    // This bitmap has a width and height but no pixels. As a result, attempting to record it will
    // fail.
    SkBitmap bm;
    bm.setInfo(SkImageInfo::MakeN32Premul(100, 100));
    SkPictureRecorder recorder;
    SkCanvas* recordingCanvas = recorder.beginRecording(100, 100);
    recordingCanvas->drawBitmap(bm, 0, 0);
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

    SkCanvas canvas;
    canvas.drawPicture(picture);
}
#endif

static void test_clip_bound_opt(skiatest::Reporter* reporter) {
    // Test for crbug.com/229011
    SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4),
                                    SkIntToScalar(2), SkIntToScalar(2));
    SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7),
                                    SkIntToScalar(1), SkIntToScalar(1));
    SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6),
                                    SkIntToScalar(1), SkIntToScalar(1));

    SkPath invPath;
    invPath.addOval(rect1);
    invPath.setFillType(SkPath::kInverseEvenOdd_FillType);
    SkPath path;
    path.addOval(rect2);
    SkPath path2;
    path2.addOval(rect3);
    SkIRect clipBounds;
    SkPictureRecorder recorder;

    // Testing conservative-raster-clip that is enabled by PictureRecord
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(invPath);
        clipBounds = canvas->getDeviceClipBounds();
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path);
        canvas->clipPath(invPath);
        clipBounds = canvas->getDeviceClipBounds();
        REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path);
        canvas->clipPath(invPath, kUnion_SkClipOp);
        clipBounds = canvas->getDeviceClipBounds();
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, kDifference_SkClipOp);
        clipBounds = canvas->getDeviceClipBounds();
        REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, kReverseDifference_SkClipOp);
        clipBounds = canvas->getDeviceClipBounds();
        // True clip is actually empty in this case, but the best
        // determination we can make using only bounds as input is that the
        // clip is included in the bounds of 'path'.
        REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->clipPath(path, kIntersect_SkClipOp);
        canvas->clipPath(path2, kXOR_SkClipOp);
        clipBounds = canvas->getDeviceClipBounds();
        REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft);
        REPORTER_ASSERT(reporter, 6 == clipBounds.fTop);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
        REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
    }
}

static void test_cull_rect_reset(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;
    SkRect bounds = SkRect::MakeWH(10, 10);
    SkRTreeFactory factory;
    SkCanvas* canvas = recorder.beginRecording(bounds, &factory);
    bounds = SkRect::MakeWH(100, 100);
    SkPaint paint;
    canvas->drawRect(bounds, paint);
    canvas->drawRect(bounds, paint);
    sk_sp<SkPicture> p(recorder.finishRecordingAsPictureWithCull(bounds));
    const SkBigPicture* picture = p->asSkBigPicture();
    REPORTER_ASSERT(reporter, picture);

    SkRect finalCullRect = picture->cullRect();
    REPORTER_ASSERT(reporter, 0 == finalCullRect.fLeft);
    REPORTER_ASSERT(reporter, 0 == finalCullRect.fTop);
    REPORTER_ASSERT(reporter, 100 == finalCullRect.fBottom);
    REPORTER_ASSERT(reporter, 100 == finalCullRect.fRight);

    const SkBBoxHierarchy* pictureBBH = picture->bbh();
    SkRect bbhCullRect = pictureBBH->getRootBound();
    REPORTER_ASSERT(reporter, 0 == bbhCullRect.fLeft);
    REPORTER_ASSERT(reporter, 0 == bbhCullRect.fTop);
    REPORTER_ASSERT(reporter, 100 == bbhCullRect.fBottom);
    REPORTER_ASSERT(reporter, 100 == bbhCullRect.fRight);
}


/**
 * A canvas that records the number of clip commands.
 */
class ClipCountingCanvas : public SkCanvas {
public:
    ClipCountingCanvas(int width, int height)
        : INHERITED(width, height)
        , fClipCount(0){
    }

    void onClipRect(const SkRect& r, SkClipOp op, ClipEdgeStyle edgeStyle) override {
        fClipCount += 1;
        this->INHERITED::onClipRect(r, op, edgeStyle);
    }

    void onClipRRect(const SkRRect& rrect, SkClipOp op, ClipEdgeStyle edgeStyle)override {
        fClipCount += 1;
        this->INHERITED::onClipRRect(rrect, op, edgeStyle);
    }

    void onClipPath(const SkPath& path, SkClipOp op, ClipEdgeStyle edgeStyle) override {
        fClipCount += 1;
        this->INHERITED::onClipPath(path, op, edgeStyle);
    }

    void onClipRegion(const SkRegion& deviceRgn, SkClipOp op) override {
        fClipCount += 1;
        this->INHERITED::onClipRegion(deviceRgn, op);
    }

    unsigned getClipCount() const { return fClipCount; }

private:
    unsigned fClipCount;

    typedef SkCanvas INHERITED;
};

static void test_clip_expansion(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;
    SkCanvas* canvas = recorder.beginRecording(10, 10);

    canvas->clipRect(SkRect::MakeEmpty(), kReplace_SkClipOp);
    // The following expanding clip should not be skipped.
    canvas->clipRect(SkRect::MakeXYWH(4, 4, 3, 3), kUnion_SkClipOp);
    // Draw something so the optimizer doesn't just fold the world.
    SkPaint p;
    p.setColor(SK_ColorBLUE);
    canvas->drawPaint(p);
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

    ClipCountingCanvas testCanvas(10, 10);
    picture->playback(&testCanvas);

    // Both clips should be present on playback.
    REPORTER_ASSERT(reporter, testCanvas.getClipCount() == 2);
}

static void test_hierarchical(skiatest::Reporter* reporter) {
    SkBitmap bm;
    make_bm(&bm, 10, 10, SK_ColorRED, true);

    SkPictureRecorder recorder;

    recorder.beginRecording(10, 10);
    sk_sp<SkPicture> childPlain(recorder.finishRecordingAsPicture());
    REPORTER_ASSERT(reporter, !childPlain->willPlayBackBitmaps()); // 0

    recorder.beginRecording(10, 10)->drawBitmap(bm, 0, 0);
    sk_sp<SkPicture> childWithBitmap(recorder.finishRecordingAsPicture());
    REPORTER_ASSERT(reporter, childWithBitmap->willPlayBackBitmaps()); // 1

    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawPicture(childPlain);
        sk_sp<SkPicture> parentPP(recorder.finishRecordingAsPicture());
        REPORTER_ASSERT(reporter, !parentPP->willPlayBackBitmaps()); // 0
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawPicture(childWithBitmap);
        sk_sp<SkPicture> parentPWB(recorder.finishRecordingAsPicture());
        REPORTER_ASSERT(reporter, parentPWB->willPlayBackBitmaps()); // 1
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawBitmap(bm, 0, 0);
        canvas->drawPicture(childPlain);
        sk_sp<SkPicture> parentWBP(recorder.finishRecordingAsPicture());
        REPORTER_ASSERT(reporter, parentWBP->willPlayBackBitmaps()); // 1
    }
    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        canvas->drawBitmap(bm, 0, 0);
        canvas->drawPicture(childWithBitmap);
        sk_sp<SkPicture> parentWBWB(recorder.finishRecordingAsPicture());
        REPORTER_ASSERT(reporter, parentWBWB->willPlayBackBitmaps()); // 2
    }
}

static void test_gen_id(skiatest::Reporter* reporter) {

    SkPictureRecorder recorder;
    recorder.beginRecording(0, 0);
    sk_sp<SkPicture> empty(recorder.finishRecordingAsPicture());

    // Empty pictures should still have a valid ID
    REPORTER_ASSERT(reporter, empty->uniqueID() != SK_InvalidGenID);

    SkCanvas* canvas = recorder.beginRecording(1, 1);
    canvas->drawColor(SK_ColorWHITE);
    sk_sp<SkPicture> hasData(recorder.finishRecordingAsPicture());
    // picture should have a non-zero id after recording
    REPORTER_ASSERT(reporter, hasData->uniqueID() != SK_InvalidGenID);

    // both pictures should have different ids
    REPORTER_ASSERT(reporter, hasData->uniqueID() != empty->uniqueID());
}

static void test_typeface(skiatest::Reporter* reporter) {
    SkPictureRecorder recorder;
    SkCanvas* canvas = recorder.beginRecording(10, 10);
    SkPaint paint;
    paint.setTypeface(SkTypeface::MakeFromName("Arial",
                                               SkFontStyle::FromOldStyle(SkTypeface::kItalic)));
    canvas->drawString("Q", 0, 10, paint);
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    SkDynamicMemoryWStream stream;
    picture->serialize(&stream);
}

DEF_TEST(Picture, reporter) {
    test_typeface(reporter);
#ifdef SK_DEBUG
    test_deleting_empty_picture();
    test_serializing_empty_picture();
#else
    test_bad_bitmap();
#endif
    test_unbalanced_save_restores(reporter);
    test_peephole();
#if SK_SUPPORT_GPU
    test_gpu_veto(reporter);
#endif
    test_images_are_found_by_willPlayBackBitmaps(reporter);
    test_analysis(reporter);
    test_clip_bound_opt(reporter);
    test_clip_expansion(reporter);
    test_hierarchical(reporter);
    test_gen_id(reporter);
    test_cull_rect_reset(reporter);
}

static void draw_bitmaps(const SkBitmap bitmap, SkCanvas* canvas) {
    const SkPaint paint;
    const SkRect rect = { 5.0f, 5.0f, 8.0f, 8.0f };
    const SkIRect irect =  { 2, 2, 3, 3 };
    int divs[] = { 2, 3 };
    SkCanvas::Lattice lattice;
    lattice.fXCount = lattice.fYCount = 2;
    lattice.fXDivs = lattice.fYDivs = divs;

    // Don't care what these record, as long as they're legal.
    canvas->drawBitmap(bitmap, 0.0f, 0.0f, &paint);
    canvas->drawBitmapRect(bitmap, rect, rect, &paint, SkCanvas::kStrict_SrcRectConstraint);
    canvas->drawBitmapNine(bitmap, irect, rect, &paint);
    canvas->drawBitmap(bitmap, 1, 1);   // drawSprite
    canvas->drawBitmapLattice(bitmap, lattice, rect, &paint);
}

static void test_draw_bitmaps(SkCanvas* canvas) {
    SkBitmap empty;
    draw_bitmaps(empty, canvas);
    empty.setInfo(SkImageInfo::MakeN32Premul(10, 10));
    draw_bitmaps(empty, canvas);
}

DEF_TEST(Picture_EmptyBitmap, r) {
    SkPictureRecorder recorder;
    test_draw_bitmaps(recorder.beginRecording(10, 10));
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
}

DEF_TEST(Canvas_EmptyBitmap, r) {
    SkBitmap dst;
    dst.allocN32Pixels(10, 10);
    SkCanvas canvas(dst);

    test_draw_bitmaps(&canvas);
}

DEF_TEST(DontOptimizeSaveLayerDrawDrawRestore, reporter) {
    // This test is from crbug.com/344987.
    // The commands are:
    //   saveLayer with paint that modifies alpha
    //     drawBitmapRect
    //     drawBitmapRect
    //   restore
    // The bug was that this structure was modified so that:
    //  - The saveLayer and restore were eliminated
    //  - The alpha was only applied to the first drawBitmapRectToRect

    // This test draws blue and red squares inside a 50% transparent
    // layer.  Both colours should show up muted.
    // When the bug is present, the red square (the second bitmap)
    // shows upwith full opacity.

    SkBitmap blueBM;
    make_bm(&blueBM, 100, 100, SkColorSetARGB(255, 0, 0, 255), true);
    SkBitmap redBM;
    make_bm(&redBM, 100, 100, SkColorSetARGB(255, 255, 0, 0), true);
    SkPaint semiTransparent;
    semiTransparent.setAlpha(0x80);

    SkPictureRecorder recorder;
    SkCanvas* canvas = recorder.beginRecording(100, 100);
    canvas->drawColor(0);

    canvas->saveLayer(0, &semiTransparent);
    canvas->drawBitmap(blueBM, 25, 25);
    canvas->drawBitmap(redBM, 50, 50);
    canvas->restore();

    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

    // Now replay the picture back on another canvas
    // and check a couple of its pixels.
    SkBitmap replayBM;
    make_bm(&replayBM, 100, 100, SK_ColorBLACK, false);
    SkCanvas replayCanvas(replayBM);
    picture->playback(&replayCanvas);
    replayCanvas.flush();

    // With the bug present, at (55, 55) we would get a fully opaque red
    // intead of a dark red.
    REPORTER_ASSERT(reporter, replayBM.getColor(30, 30) == 0xff000080);
    REPORTER_ASSERT(reporter, replayBM.getColor(55, 55) == 0xff800000);
}

struct CountingBBH : public SkBBoxHierarchy {
    mutable int searchCalls;
    SkRect rootBound;

    CountingBBH(const SkRect& bound) : searchCalls(0), rootBound(bound) {}

    void search(const SkRect& query, SkTDArray<int>* results) const override {
        this->searchCalls++;
    }

    void insert(const SkRect[], int) override {}
    virtual size_t bytesUsed() const override { return 0; }
    SkRect getRootBound() const override { return rootBound; }
};

class SpoonFedBBHFactory : public SkBBHFactory {
public:
    explicit SpoonFedBBHFactory(SkBBoxHierarchy* bbh) : fBBH(bbh) {}
    SkBBoxHierarchy* operator()(const SkRect&) const override {
        return SkRef(fBBH);
    }
private:
    SkBBoxHierarchy* fBBH;
};

// When the canvas clip covers the full picture, we don't need to call the BBH.
DEF_TEST(Picture_SkipBBH, r) {
    SkRect bound = SkRect::MakeWH(320, 240);
    CountingBBH bbh(bound);
    SpoonFedBBHFactory factory(&bbh);

    SkPictureRecorder recorder;
    SkCanvas* c = recorder.beginRecording(bound, &factory);
    // Record a few ops so we don't hit a small- or empty- picture optimization.
        c->drawRect(bound, SkPaint());
        c->drawRect(bound, SkPaint());
    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());

    SkCanvas big(640, 480), small(300, 200);

    picture->playback(&big);
    REPORTER_ASSERT(r, bbh.searchCalls == 0);

    picture->playback(&small);
    REPORTER_ASSERT(r, bbh.searchCalls == 1);
}

DEF_TEST(Picture_BitmapLeak, r) {
    SkBitmap mut, immut;
    mut.allocN32Pixels(300, 200);
    immut.allocN32Pixels(300, 200);
    immut.setImmutable();
    SkASSERT(!mut.isImmutable());
    SkASSERT(immut.isImmutable());

    // No one can hold a ref on our pixels yet.
    REPORTER_ASSERT(r, mut.pixelRef()->unique());
    REPORTER_ASSERT(r, immut.pixelRef()->unique());

    sk_sp<SkPicture> pic;
    {
        // we want the recorder to go out of scope before our subsequent checks, so we
        // place it inside local braces.
        SkPictureRecorder rec;
        SkCanvas* canvas = rec.beginRecording(1920, 1200);
            canvas->drawBitmap(mut, 0, 0);
            canvas->drawBitmap(immut, 800, 600);
        pic = rec.finishRecordingAsPicture();
    }

    // The picture shares the immutable pixels but copies the mutable ones.
    REPORTER_ASSERT(r, mut.pixelRef()->unique());
    REPORTER_ASSERT(r, !immut.pixelRef()->unique());

    // When the picture goes away, it's just our bitmaps holding the refs.
    pic = nullptr;
    REPORTER_ASSERT(r, mut.pixelRef()->unique());
    REPORTER_ASSERT(r, immut.pixelRef()->unique());
}

// getRecordingCanvas() should return a SkCanvas when recording, null when not recording.
DEF_TEST(Picture_getRecordingCanvas, r) {
    SkPictureRecorder rec;
    REPORTER_ASSERT(r, !rec.getRecordingCanvas());
    for (int i = 0; i < 3; i++) {
        rec.beginRecording(100, 100);
        REPORTER_ASSERT(r, rec.getRecordingCanvas());
        rec.finishRecordingAsPicture();
        REPORTER_ASSERT(r, !rec.getRecordingCanvas());
    }
}

DEF_TEST(MiniRecorderLeftHanging, r) {
    // Any shader or other ref-counted effect will do just fine here.
    SkPaint paint;
    paint.setShader(SkShader::MakeColorShader(SK_ColorRED));

    SkMiniRecorder rec;
    REPORTER_ASSERT(r, rec.drawRect(SkRect::MakeWH(20,30), paint));
    // Don't call rec.detachPicture().  Test succeeds by not asserting or leaking the shader.
}

DEF_TEST(Picture_preserveCullRect, r) {
    SkPictureRecorder recorder;

    SkCanvas* c = recorder.beginRecording(SkRect::MakeLTRB(1, 2, 3, 4));
    c->clear(SK_ColorCYAN);

    sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
    SkDynamicMemoryWStream wstream;
    picture->serialize(&wstream);

    std::unique_ptr<SkStream> rstream(wstream.detachAsStream());
    sk_sp<SkPicture> deserializedPicture(SkPicture::MakeFromStream(rstream.get()));

    REPORTER_ASSERT(r, deserializedPicture != nullptr);
    REPORTER_ASSERT(r, deserializedPicture->cullRect().left() == 1);
    REPORTER_ASSERT(r, deserializedPicture->cullRect().top() == 2);
    REPORTER_ASSERT(r, deserializedPicture->cullRect().right() == 3);
    REPORTER_ASSERT(r, deserializedPicture->cullRect().bottom() == 4);
}

#if SK_SUPPORT_GPU

DEF_TEST(PictureGpuAnalyzer, r) {
    SkPictureRecorder recorder;

    {
        SkCanvas* canvas = recorder.beginRecording(10, 10);
        SkPaint paint;
        SkScalar intervals [] = { 10, 20 };
        paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));

        for (int i = 0; i < 50; ++i) {
            canvas->drawRect(SkRect::MakeWH(10, 10), paint);
        }
    }
    sk_sp<SkPicture> vetoPicture(recorder.finishRecordingAsPicture());

    SkPictureGpuAnalyzer analyzer;
    REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());

    analyzer.analyzePicture(vetoPicture.get());
    REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());

    analyzer.reset();
    REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());

    recorder.beginRecording(10, 10)->drawPicture(vetoPicture);
    sk_sp<SkPicture> nestedVetoPicture(recorder.finishRecordingAsPicture());

    analyzer.analyzePicture(nestedVetoPicture.get());
    REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());

    analyzer.reset();

    const SkPath convexClip = make_convex_path();
    const SkPath concaveClip = make_concave_path();
    for (int i = 0; i < 50; ++i) {
        analyzer.analyzeClipPath(convexClip, kIntersect_SkClipOp, false);
        analyzer.analyzeClipPath(convexClip, kIntersect_SkClipOp, true);
        analyzer.analyzeClipPath(concaveClip, kIntersect_SkClipOp, false);
    }
    REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());

    for (int i = 0; i < 50; ++i) {
        analyzer.analyzeClipPath(concaveClip, kIntersect_SkClipOp, true);
    }
    REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());
}

#endif // SK_SUPPORT_GPU

// If we record bounded ops into a picture with a big cull and calculate the
// bounds of those ops, we should trim down the picture cull to the ops' bounds.
// If we're not using an SkBBH, we shouldn't change it.
DEF_TEST(Picture_UpdatedCull_1, r) {
    // Testing 1 draw exercises SkMiniPicture.
    SkRTreeFactory factory;
    SkPictureRecorder recorder;

    auto canvas = recorder.beginRecording(SkRect::MakeLargest(), &factory);
    canvas->drawRect(SkRect::MakeWH(20,20), SkPaint{});
    auto pic = recorder.finishRecordingAsPicture();
    REPORTER_ASSERT(r, pic->cullRect() == SkRect::MakeWH(20,20));

    canvas = recorder.beginRecording(SkRect::MakeLargest());
    canvas->drawRect(SkRect::MakeWH(20,20), SkPaint{});
    pic = recorder.finishRecordingAsPicture();
    REPORTER_ASSERT(r, pic->cullRect() == SkRect::MakeLargest());
}
DEF_TEST(Picture_UpdatedCull_2, r) {
    // Testing >1 draw exercises SkBigPicture.
    SkRTreeFactory factory;
    SkPictureRecorder recorder;

    auto canvas = recorder.beginRecording(SkRect::MakeLargest(), &factory);
    canvas->drawRect(SkRect::MakeWH(20,20), SkPaint{});
    canvas->drawRect(SkRect::MakeWH(10,40), SkPaint{});
    auto pic = recorder.finishRecordingAsPicture();
    REPORTER_ASSERT(r, pic->cullRect() == SkRect::MakeWH(20,40));

    canvas = recorder.beginRecording(SkRect::MakeLargest());
    canvas->drawRect(SkRect::MakeWH(20,20), SkPaint{});
    canvas->drawRect(SkRect::MakeWH(10,40), SkPaint{});
    pic = recorder.finishRecordingAsPicture();
    REPORTER_ASSERT(r, pic->cullRect() == SkRect::MakeLargest());
}