aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/RecordOptsTest.cpp
blob: dd5035b216b66e52f156d4e117f0b9943f8913bc (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
/*
 * 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 "SkRecord.h"
#include "SkRecordOpts.h"
#include "SkRecorder.h"
#include "SkRecords.h"
#include "SkXfermode.h"

static const int W = 1920, H = 1080;

DEF_TEST(RecordOpts_NoopDraw, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    recorder.drawRect(SkRect::MakeWH(200, 200), SkPaint());
    recorder.drawRect(SkRect::MakeWH(300, 300), SkPaint());
    recorder.drawRect(SkRect::MakeWH(100, 100), SkPaint());

    record.replace<SkRecords::NoOp>(1);  // NoOps should be allowed.

    SkRecordNoopSaveRestores(&record);

    REPORTER_ASSERT(r, 2 == count_instances_of_type<SkRecords::DrawRect>(record));
}

DEF_TEST(RecordOpts_SingleNoopSaveRestore, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    recorder.save();
        recorder.clipRect(SkRect::MakeWH(200, 200));
    recorder.restore();

    SkRecordNoopSaveRestores(&record);
    for (unsigned i = 0; i < 3; i++) {
        assert_type<SkRecords::NoOp>(r, record, i);
    }
}

DEF_TEST(RecordOpts_NoopSaveRestores, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    // The second pass will clean up this pair after the first pass noops all the innards.
    recorder.save();
        // A simple pointless pair of save/restore.
        recorder.save();
        recorder.restore();

        // As long as we don't draw in there, everything is a noop.
        recorder.save();
            recorder.clipRect(SkRect::MakeWH(200, 200));
            recorder.clipRect(SkRect::MakeWH(100, 100));
        recorder.restore();
    recorder.restore();

    SkRecordNoopSaveRestores(&record);
    for (unsigned index = 0; index < record.count(); index++) {
        assert_type<SkRecords::NoOp>(r, record, index);
    }
}

DEF_TEST(RecordOpts_SaveSaveLayerRestoreRestore, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    // A previous bug NoOp'd away the first 3 commands.
    recorder.save();
        recorder.saveLayer(NULL, NULL);
        recorder.restore();
    recorder.restore();

    SkRecordNoopSaveRestores(&record);
    switch (record.count()) {
        case 4:
            assert_type<SkRecords::Save>     (r, record, 0);
            assert_type<SkRecords::SaveLayer>(r, record, 1);
            assert_type<SkRecords::Restore>  (r, record, 2);
            assert_type<SkRecords::Restore>  (r, record, 3);
            break;
        case 2:
            assert_type<SkRecords::SaveLayer>(r, record, 0);
            assert_type<SkRecords::Restore>  (r, record, 1);
            break;
        case 0:
            break;
        default:
            REPORTER_ASSERT(r, false);
    }
}

static void assert_savelayer_restore(skiatest::Reporter* r,
                                     SkRecord* record,
                                     unsigned i,
                                     bool shouldBeNoOped) {
    SkRecordNoopSaveLayerDrawRestores(record);
    if (shouldBeNoOped) {
        assert_type<SkRecords::NoOp>(r, *record, i);
        assert_type<SkRecords::NoOp>(r, *record, i+2);
    } else {
        assert_type<SkRecords::SaveLayer>(r, *record, i);
        assert_type<SkRecords::Restore>(r, *record, i+2);
    }
}

DEF_TEST(RecordOpts_NoopSaveLayerDrawRestore, r) {
    SkRecord record;
    SkRecorder recorder(&record, W, H);

    SkRect bounds = SkRect::MakeWH(100, 200);
    SkRect   draw = SkRect::MakeWH(50, 60);

    SkPaint goodLayerPaint, badLayerPaint, worseLayerPaint;
    goodLayerPaint.setColor(0x03000000);  // Only alpha.
    badLayerPaint.setColor( 0x03040506);  // Not only alpha.
    worseLayerPaint.setXfermodeMode(SkXfermode::kDstIn_Mode);  // Any effect will do.

    SkPaint goodDrawPaint, badDrawPaint;
    goodDrawPaint.setColor(0xFF020202);  // Opaque.
    badDrawPaint.setColor( 0x0F020202);  // Not opaque.

    // No change: optimization can't handle bounds.
    recorder.saveLayer(&bounds, NULL);
        recorder.drawRect(draw, goodDrawPaint);
    recorder.restore();
    if (!SkCanvas::Internal_Private_GetIgnoreSaveLayerBounds()) {
        assert_savelayer_restore(r, &record, 0, false);
    }

    // SaveLayer/Restore removed: no bounds + no paint = no point.
    recorder.saveLayer(NULL, NULL);
        recorder.drawRect(draw, goodDrawPaint);
    recorder.restore();
    assert_savelayer_restore(r, &record, 3, true);

    // TODO(mtklein): test case with null draw paint

    // No change: layer paint isn't alpha-only.
    recorder.saveLayer(NULL, &badLayerPaint);
        recorder.drawRect(draw, goodDrawPaint);
    recorder.restore();
    assert_savelayer_restore(r, &record, 6, false);

    // No change: layer paint has an effect.
    recorder.saveLayer(NULL, &worseLayerPaint);
        recorder.drawRect(draw, goodDrawPaint);
    recorder.restore();
    assert_savelayer_restore(r, &record, 9, false);

    // No change: draw paint isn't opaque.
    recorder.saveLayer(NULL, &goodLayerPaint);
        recorder.drawRect(draw, badDrawPaint);
    recorder.restore();
    assert_savelayer_restore(r, &record, 12, false);

    // SaveLayer/Restore removed: we can fold in the alpha!
    recorder.saveLayer(NULL, &goodLayerPaint);
        recorder.drawRect(draw, goodDrawPaint);
    recorder.restore();
    assert_savelayer_restore(r, &record, 15, true);

    const SkRecords::DrawRect* drawRect = assert_type<SkRecords::DrawRect>(r, record, 16);
    REPORTER_ASSERT(r, drawRect != NULL);
    REPORTER_ASSERT(r, drawRect->paint.getColor() == 0x03020202);
}