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 "Test.h"
9
10#include "SkPictureRecorder.h"
11#include "SkRecord.h"
12#include "SkRecorder.h"
13#include "SkRecords.h"
14#include "SkShader.h"
15#include "SkSurface.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(SkShader::MakeEmptyShader());
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        SkRecord record;
83        SkRecorder recorder(&record, 100, 100);
84
85        // DrawImage is supposed to take a reference
86        recorder.drawImage(image, 0, 0);
87        REPORTER_ASSERT(reporter, !image->unique());
88
89        Tally tally;
90        tally.apply(record);
91
92        REPORTER_ASSERT(reporter, 1 == tally.count<SkRecords::DrawImage>());
93    }
94    REPORTER_ASSERT(reporter, image->unique());
95
96    {
97        SkRecord record;
98        SkRecorder recorder(&record, 100, 100);
99
100        // DrawImageRect is supposed to take a reference
101        recorder.drawImageRect(image, SkRect::MakeWH(100, 100), nullptr);
102        REPORTER_ASSERT(reporter, !image->unique());
103
104        Tally tally;
105        tally.apply(record);
106
107        REPORTER_ASSERT(reporter, 1 == tally.count<SkRecords::DrawImageRect>());
108    }
109    REPORTER_ASSERT(reporter, image->unique());
110}
111