1 /*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "SkBitmap.h"
9 #include "SkCanvas.h"
10 #include "SkBBoxHierarchy.h"
11 #include "SkPaint.h"
12 #include "SkPicture.h"
13 #include "SkPictureRecorder.h"
14
15 #include "Test.h"
16
17 class PictureBBHTestBase {
18 public:
PictureBBHTestBase(int playbackWidth,int playbackHeight,int recordWidth,int recordHeight)19 PictureBBHTestBase(int playbackWidth, int playbackHeight,
20 int recordWidth, int recordHeight) {
21
22 fResultBitmap.allocN32Pixels(playbackWidth, playbackHeight);
23 fPictureWidth = recordWidth;
24 fPictureHeight = recordHeight;
25 }
26
~PictureBBHTestBase()27 virtual ~PictureBBHTestBase() { }
28
29 virtual void doTest(SkCanvas& playbackCanvas, SkCanvas& recordingCanvas) = 0;
30
run(skiatest::Reporter * reporter)31 void run(skiatest::Reporter* reporter) {
32 // No BBH
33 this->run(nullptr, reporter);
34
35 // With an R-Tree
36 SkRTreeFactory RTreeFactory;
37 this->run(&RTreeFactory, reporter);
38 }
39
40 private:
run(SkBBHFactory * factory,skiatest::Reporter * reporter)41 void run(SkBBHFactory* factory, skiatest::Reporter* reporter) {
42 SkCanvas playbackCanvas(fResultBitmap);
43 playbackCanvas.clear(SK_ColorGREEN);
44 SkPictureRecorder recorder;
45 SkCanvas* recordCanvas = recorder.beginRecording(SkIntToScalar(fPictureWidth),
46 SkIntToScalar(fPictureHeight),
47 factory);
48 this->doTest(playbackCanvas, *recordCanvas);
49 sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
50 playbackCanvas.drawPicture(picture);
51 REPORTER_ASSERT(reporter, SK_ColorGREEN == fResultBitmap.getColor(0, 0));
52 }
53
54 SkBitmap fResultBitmap;
55 int fPictureWidth, fPictureHeight;
56 };
57
58 // Test to verify the playback of an empty picture
59 //
60 class DrawEmptyPictureBBHTest : public PictureBBHTestBase {
61 public:
DrawEmptyPictureBBHTest()62 DrawEmptyPictureBBHTest()
63 : PictureBBHTestBase(2, 2, 1, 1) {}
~DrawEmptyPictureBBHTest()64 ~DrawEmptyPictureBBHTest() override {}
65
doTest(SkCanvas &,SkCanvas &)66 void doTest(SkCanvas&, SkCanvas&) override {}
67 };
68
69 // Test to verify the playback of a picture into a canvas that has
70 // an empty clip.
71 //
72 class EmptyClipPictureBBHTest : public PictureBBHTestBase {
73 public:
EmptyClipPictureBBHTest()74 EmptyClipPictureBBHTest()
75 : PictureBBHTestBase(2, 2, 3, 3) {}
76
doTest(SkCanvas & playbackCanvas,SkCanvas & recordingCanvas)77 void doTest(SkCanvas& playbackCanvas, SkCanvas& recordingCanvas) override {
78 // intersect with out of bounds rect -> empty clip.
79 playbackCanvas.clipRect(SkRect::MakeXYWH(10, 10, 1, 1));
80 SkPaint paint;
81 recordingCanvas.drawRect(SkRect::MakeWH(3, 3), paint);
82 }
83
~EmptyClipPictureBBHTest()84 ~EmptyClipPictureBBHTest() override {}
85 };
86
DEF_TEST(PictureBBH,reporter)87 DEF_TEST(PictureBBH, reporter) {
88
89 DrawEmptyPictureBBHTest emptyPictureTest;
90 emptyPictureTest.run(reporter);
91
92 EmptyClipPictureBBHTest emptyClipPictureTest;
93 emptyClipPictureTest.run(reporter);
94 }
95
DEF_TEST(RTreeMakeLargest,r)96 DEF_TEST(RTreeMakeLargest, r) {
97 // A call to insert() with 2 or more rects and a bounds of SkRect::MakeLargest()
98 // used to fall into an infinite loop.
99
100 SkRTreeFactory factory;
101 std::unique_ptr<SkBBoxHierarchy> bbh{ factory(SkRect::MakeLargest()) };
102
103 SkRect rects[] = { {0,0, 10,10}, {5,5,15,15} };
104 bbh->insert(rects, SK_ARRAY_COUNT(rects));
105 REPORTER_ASSERT(r, bbh->getRootBound() == SkRect::MakeWH(15,15));
106 }
107