aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/RecordDrawTest.cpp
blob: 11b835b0ca0121ba53a931cfd17c118a1d077fcd (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
/*
 * Copyright 2014 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "Test.h"
#include "RecordTestUtils.h"

#include "SkDebugCanvas.h"
#include "SkDrawPictureCallback.h"
#include "SkRecord.h"
#include "SkRecordOpts.h"
#include "SkRecordDraw.h"
#include "SkRecorder.h"
#include "SkRecords.h"

static const int W = 1920, H = 1080;

class JustOneDraw : public SkDrawPictureCallback {
public:
    JustOneDraw() : fCalls(0) {}

    virtual bool abortDrawing() SK_OVERRIDE { return fCalls++ > 0; }
private:
    int fCalls;
};

DEF_TEST(RecordDraw_Abort, r) {
    // Record two commands.
    SkRecord record;
    SkRecorder recorder(&record, W, H);
    recorder.drawRect(SkRect::MakeWH(200, 300), SkPaint());
    recorder.clipRect(SkRect::MakeWH(100, 200));

    SkRecord rerecord;
    SkRecorder canvas(&rerecord, W, H);

    JustOneDraw callback;
    SkRecordDraw(record, &canvas, NULL/*bbh*/, &callback);

    REPORTER_ASSERT(r, 3 == rerecord.count());
    assert_type<SkRecords::Save>    (r, rerecord, 0);
    assert_type<SkRecords::DrawRect>(r, rerecord, 1);
    assert_type<SkRecords::Restore> (r, rerecord, 2);
}

DEF_TEST(RecordDraw_Unbalanced, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);
    recorder.save();  // We won't balance this, but SkRecordDraw will for us.

    SkRecord rerecord;
    SkRecorder canvas(&rerecord, W, H);
    SkRecordDraw(record, &canvas, NULL/*bbh*/, NULL/*callback*/);

    REPORTER_ASSERT(r, 4 == rerecord.count());
    assert_type<SkRecords::Save>    (r, rerecord, 0);
    assert_type<SkRecords::Save>    (r, rerecord, 1);
    assert_type<SkRecords::Restore> (r, rerecord, 2);
    assert_type<SkRecords::Restore> (r, rerecord, 3);
}

DEF_TEST(RecordDraw_SetMatrixClobber, r) {
    // Set up an SkRecord that just scales by 2x,3x.
    SkRecord scaleRecord;
    SkRecorder scaleCanvas(&scaleRecord, W, H);
    SkMatrix scale;
    scale.setScale(2, 3);
    scaleCanvas.setMatrix(scale);

    // Set up an SkRecord with an initial +20, +20 translate.
    SkRecord translateRecord;
    SkRecorder translateCanvas(&translateRecord, W, H);
    SkMatrix translate;
    translate.setTranslate(20, 20);
    translateCanvas.setMatrix(translate);

    SkRecordDraw(scaleRecord, &translateCanvas, NULL/*bbh*/, NULL/*callback*/);
    REPORTER_ASSERT(r, 4 == translateRecord.count());
    assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
    assert_type<SkRecords::Save>     (r, translateRecord, 1);
    assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
    assert_type<SkRecords::Restore>  (r, translateRecord, 3);

    // When we look at translateRecord now, it should have its first +20,+20 translate,
    // then a 2x,3x scale that's been concatted with that +20,+20 translate.
    const SkRecords::SetMatrix* setMatrix;
    setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
    REPORTER_ASSERT(r, setMatrix->matrix == translate);

    setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
    SkMatrix expected = scale;
    expected.postConcat(translate);
    REPORTER_ASSERT(r, setMatrix->matrix == expected);
}

struct TestBBH : public SkBBoxHierarchy {
    virtual void insert(void* data, const SkRect& bounds, bool defer) SK_OVERRIDE {
        Entry e = { (uintptr_t)data, bounds };
        entries.push(e);
    }
    virtual int getCount() const SK_OVERRIDE { return entries.count(); }

    virtual void flushDeferredInserts() SK_OVERRIDE {}

    virtual void search(const SkRect& query, SkTDArray<void*>* results) const SK_OVERRIDE {}
    virtual void clear() SK_OVERRIDE {}
    virtual void rewindInserts() SK_OVERRIDE {}
    virtual int getDepth() const SK_OVERRIDE { return -1; }

    struct Entry {
        uintptr_t data;
        SkRect bounds;
    };
    SkTDArray<Entry> entries;
};

// This test is not meant to make total sense yet.  It's testing the status quo
// of SkRecordFillBounds(), which itself doesn't make total sense yet.
DEF_TEST(RecordDraw_BBH, r) {
    TestBBH bbh;

    SkRecord record;

    SkRecorder recorder(&record, W, H);
    recorder.save();
        recorder.clipRect(SkRect::MakeWH(400, 500));
        recorder.scale(2, 2);
        recorder.drawRect(SkRect::MakeWH(320, 240), SkPaint());
    recorder.restore();

    SkRecordFillBounds(record, &bbh);

    REPORTER_ASSERT(r, bbh.entries.count() == 5);
    for (int i = 0; i < bbh.entries.count(); i++) {
        REPORTER_ASSERT(r, bbh.entries[i].data == (uintptr_t)i);

        // We'd like to assert bounds == SkRect::MakeWH(400, 480).
        // But we allow a little slop in recognition that float equality can be weird.
        REPORTER_ASSERT(r,  SkRect::MakeLTRB(-1, -1, 401, 481).contains(bbh.entries[i].bounds));
        REPORTER_ASSERT(r, !SkRect::MakeLTRB(+1, +1, 399, 479).contains(bbh.entries[i].bounds));
    }
}

// Base test to ensure start/stop range is respected
DEF_TEST(RecordDraw_PartialStartStop, r) {
    static const int kWidth = 10, kHeight = 10;

    SkRect r1 = { 0, 0, kWidth,   kHeight };
    SkRect r2 = { 0, 0, kWidth,   kHeight/2 };
    SkRect r3 = { 0, 0, kWidth/2, kHeight };
    SkPaint p;

    SkRecord record;
    SkRecorder recorder(&record, kWidth, kHeight);
    recorder.drawRect(r1, p);
    recorder.drawRect(r2, p);
    recorder.drawRect(r3, p);

    SkRecord rerecord;
    SkRecorder canvas(&rerecord, kWidth, kHeight);
    SkRecordPartialDraw(record, &canvas, r1, 1, 2); // replay just drawRect of r2

    REPORTER_ASSERT(r, 3 == rerecord.count());
    assert_type<SkRecords::Save>     (r, rerecord, 0);
    assert_type<SkRecords::DrawRect> (r, rerecord, 1);
    assert_type<SkRecords::Restore>  (r, rerecord, 2);

    const SkRecords::DrawRect* drawRect = assert_type<SkRecords::DrawRect>(r, rerecord, 1);
    REPORTER_ASSERT(r, drawRect->rect == r2);
}

// Check that clears are converted to drawRects
DEF_TEST(RecordDraw_PartialClear, r) {
    static const int kWidth = 10, kHeight = 10;

    SkRect rect = { 0, 0, kWidth, kHeight };

    SkRecord record;
    SkRecorder recorder(&record, kWidth, kHeight);
    recorder.clear(SK_ColorRED);

    SkRecord rerecord;
    SkRecorder canvas(&rerecord, kWidth, kHeight);
    SkRecordPartialDraw(record, &canvas, rect, 0, 1); // replay just the clear

    REPORTER_ASSERT(r, 3 == rerecord.count());
    assert_type<SkRecords::Save>    (r, rerecord, 0);
    assert_type<SkRecords::DrawRect>(r, rerecord, 1);
    assert_type<SkRecords::Restore> (r, rerecord, 2);

    const SkRecords::DrawRect* drawRect = assert_type<SkRecords::DrawRect>(r, rerecord, 1);
    REPORTER_ASSERT(r, drawRect->rect == rect);
    REPORTER_ASSERT(r, drawRect->paint.getColor() == SK_ColorRED);
}