aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/GpuDrawPathTest.cpp
blob: 7a6be6d983e91f6f8b2c6123d3eccdc930ec8179 (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
/*
 * Copyright 2013 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkTypes.h"

#if SK_SUPPORT_GPU

#include "GrContext.h"
#include "GrContextFactory.h"
#include "GrPath.h"
#include "GrStrokeInfo.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkDashPathEffect.h"
#include "SkRRect.h"
#include "SkRect.h"
#include "SkSurface.h"
#include "Test.h"

static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
    // Filling an empty path should not crash.
    SkPaint paint;
    SkRect emptyRect = SkRect::MakeEmpty();
    canvas->drawRect(emptyRect, paint);
    canvas->drawPath(SkPath(), paint);
    canvas->drawOval(emptyRect, paint);
    canvas->drawRect(emptyRect, paint);
    canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);

    // Stroking an empty path should not crash.
    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setColor(SK_ColorGRAY);
    paint.setStrokeWidth(SkIntToScalar(20));
    paint.setStrokeJoin(SkPaint::kRound_Join);
    canvas->drawRect(emptyRect, paint);
    canvas->drawPath(SkPath(), paint);
    canvas->drawOval(emptyRect, paint);
    canvas->drawRect(emptyRect, paint);
    canvas->drawRRect(SkRRect::MakeRect(emptyRect), paint);
}

static void fill_and_stroke(SkCanvas* canvas, const SkPath& p1, const SkPath& p2,
                            SkPathEffect* effect) {
    SkPaint paint;
    paint.setAntiAlias(true);
    paint.setPathEffect(effect);

    canvas->drawPath(p1, paint);
    canvas->drawPath(p2, paint);

    paint.setStyle(SkPaint::kStroke_Style);
    canvas->drawPath(p1, paint);
    canvas->drawPath(p2, paint);
}

static void test_drawSameRectOvals(skiatest::Reporter*, SkCanvas* canvas) {
    // Drawing ovals with similar bounds but different points order should not crash.

    SkPath oval1, oval2;
    const SkRect rect = SkRect::MakeWH(100, 50);
    oval1.addOval(rect, SkPath::kCW_Direction);
    oval2.addOval(rect, SkPath::kCCW_Direction);

    fill_and_stroke(canvas, oval1, oval2, nullptr);

    const SkScalar intervals[] = { 1, 1 };
    SkAutoTUnref<SkPathEffect> dashEffect(SkDashPathEffect::Create(intervals, 2, 0));
    fill_and_stroke(canvas, oval1, oval2, dashEffect);
}

DEF_GPUTEST(GpuDrawPath, reporter, factory) {
    for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
        GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);

        GrContext* grContext = factory->get(glType);
        if (nullptr == grContext) {
            continue;
        }
        static const int sampleCounts[] = { 0, 4, 16 };

        for (size_t i = 0; i < SK_ARRAY_COUNT(sampleCounts); ++i) {
            SkImageInfo info = SkImageInfo::MakeN32Premul(255, 255);
            
            SkAutoTUnref<SkSurface> surface(
                SkSurface::NewRenderTarget(grContext, SkSurface::kNo_Budgeted, info,
                                           sampleCounts[i], nullptr));
            if (!surface) {
                continue;
            }
            test_drawPathEmpty(reporter, surface->getCanvas());
        }
    }
}

DEF_GPUTEST(GpuDrawPathSameRectOvals, reporter, factory) {
    GrContext* grContext = factory->get(GrContextFactory::kNVPR_GLContextType);
    if (!grContext) {
        return;
    }

    SkAutoTUnref<SkSurface> surface(
        SkSurface::NewRenderTarget(grContext, SkSurface::kNo_Budgeted,
                                   SkImageInfo::MakeN32Premul(255, 255), 4));
    test_drawSameRectOvals(reporter, surface->getCanvas());
}

DEF_TEST(GrPathKeys, reporter) {
    // Keys should not ignore conic weights.
    SkPath path1, path2;
    path1.setIsVolatile(true);
    path2.setIsVolatile(true);
    SkPoint p0 = SkPoint::Make(100, 0);
    SkPoint p1 = SkPoint::Make(100, 100);

    path1.conicTo(p0, p1, .5f);
    path2.conicTo(p0, p1, .7f);

    bool isVolatile;
    GrUniqueKey key1, key2;
    GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle);
    GrPath::ComputeKey(path1, stroke, &key1, &isVolatile);
    GrPath::ComputeKey(path2, stroke, &key2, &isVolatile);
    REPORTER_ASSERT(reporter, key1 != key2);
}

#endif