xref: /third_party/skia/tests/RecorderTest.cpp (revision cb93a386) 
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 "tests/Test.h"
9
10#include "include/core/SkPictureRecorder.h"
11#include "include/core/SkShader.h"
12#include "include/core/SkSurface.h"
13#include "src/core/SkRecord.h"
14#include "src/core/SkRecorder.h"
15#include "src/core/SkRecords.h"
16
17#define COUNT(T) + 1
18static const int kRecordTypes = SK_RECORD_TYPES(COUNT);
19#undef COUNT
20
21// Tallies the types of commands it sees into a histogram.
22class Tally {
23public:
24    Tally() { sk_bzero(&fHistogram, sizeof(fHistogram)); }
25
26    template <typename T>
27    void operator()(const T&) { ++fHistogram[T::kType]; }
28
29    template <typename T>
30    int count() const { return fHistogram[T::kType]; }
31
32    void apply(const SkRecord& record) {
33        for (int i = 0; i < record.count(); i++) {
34            record.visit(i, *this);
35        }
36    }
37
38private:
39    int fHistogram[kRecordTypes];
40};
41
42DEF_TEST(Recorder, r) {
43    SkRecord record;
44    SkRecorder recorder(&record, 1920, 1080);
45
46    recorder.drawRect(SkRect::MakeWH(10, 10), SkPaint());
47
48    Tally tally;
49    tally.apply(record);
50    REPORTER_ASSERT(r, 1 == tally.count<SkRecords::DrawRect>());
51}
52
53// Regression test for leaking refs held by optional arguments.
54DEF_TEST(Recorder_RefLeaking, r) {
55    // We use SaveLayer to test:
56    //   - its SkRect argument is optional and SkRect is POD.  Just testing that that works.
57    //   - its SkPaint argument is optional and SkPaint is not POD.  The bug was here.
58
59    SkRect bounds = SkRect::MakeWH(320, 240);
60    SkPaint paint;
61    paint.setShader(SkShaders::Empty());
62
63    REPORTER_ASSERT(r, paint.getShader()->unique());
64    {
65        SkRecord record;
66        SkRecorder recorder(&record, 1920, 1080);
67        recorder.saveLayer(&bounds, &paint);
68        REPORTER_ASSERT(r, !paint.getShader()->unique());
69    }
70    REPORTER_ASSERT(r, paint.getShader()->unique());
71}
72
73DEF_TEST(Recorder_drawImage_takeReference, reporter) {
74
75    sk_sp<SkImage> image;
76    {
77        auto surface(SkSurface::MakeRasterN32Premul(100, 100));
78        surface->getCanvas()->clear(SK_ColorGREEN);
79        image = surface->makeImageSnapshot();
80    }
81
82    {
83        SkRecord record;
84        SkRecorder recorder(&record, 100, 100);
85
86        // DrawImage is supposed to take a reference
87        recorder.drawImage(image.get(), 0, 0, SkSamplingOptions());
88        REPORTER_ASSERT(reporter, !image->unique());
89
90        Tally tally;
91        tally.apply(record);
92
93        REPORTER_ASSERT(reporter, 1 == tally.count<SkRecords::DrawImage>());
94    }
95    REPORTER_ASSERT(reporter, image->unique());
96
97    {
98        SkRecord record;
99        SkRecorder recorder(&record, 100, 100);
100
101        // DrawImageRect is supposed to take a reference
102        recorder.drawImageRect(image.get(), SkRect::MakeWH(100, 100), SkRect::MakeWH(100, 100),
103                               SkSamplingOptions(), nullptr, SkCanvas::kFast_SrcRectConstraint);
104        REPORTER_ASSERT(reporter, !image->unique());
105
106        Tally tally;
107        tally.apply(record);
108
109        REPORTER_ASSERT(reporter, 1 == tally.count<SkRecords::DrawImageRect>());
110    }
111    REPORTER_ASSERT(reporter, image->unique());
112}
113
114// skbug.com/10997
115DEF_TEST(Recorder_boundsOverflow, reporter) {
116    SkRect bigBounds = {SK_ScalarMin, SK_ScalarMin, SK_ScalarMax, SK_ScalarMax};
117
118    SkRecord record;
119    SkRecorder recorder(&record, bigBounds);
120    REPORTER_ASSERT(reporter, recorder.imageInfo().width() > 0 &&
121                              recorder.imageInfo().height() > 0);
122}
123