1*c8dee2aaSAndroid Build Coastguard Worker /*
2*c8dee2aaSAndroid Build Coastguard Worker * Copyright 2014 Google Inc.
3*c8dee2aaSAndroid Build Coastguard Worker *
4*c8dee2aaSAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license that can be
5*c8dee2aaSAndroid Build Coastguard Worker * found in the LICENSE file.
6*c8dee2aaSAndroid Build Coastguard Worker */
7*c8dee2aaSAndroid Build Coastguard Worker
8*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkCanvas.h"
9*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkImageInfo.h"
10*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkMatrix.h"
11*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPaint.h"
12*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPath.h"
13*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPathEffect.h"
14*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPathUtils.h"
15*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPoint.h"
16*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRect.h"
17*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRefCnt.h"
18*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkScalar.h"
19*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkStrokeRec.h"
20*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkSurface.h"
21*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkTypes.h"
22*c8dee2aaSAndroid Build Coastguard Worker #include "include/effects/SkDashPathEffect.h"
23*c8dee2aaSAndroid Build Coastguard Worker #include "src/core/SkPathEffectBase.h"
24*c8dee2aaSAndroid Build Coastguard Worker #include "tests/Test.h"
25*c8dee2aaSAndroid Build Coastguard Worker
26*c8dee2aaSAndroid Build Coastguard Worker #include <array>
27*c8dee2aaSAndroid Build Coastguard Worker
28*c8dee2aaSAndroid Build Coastguard Worker // crbug.com/348821 was rooted in SkDashPathEffect refusing to flatten and unflatten itself when
29*c8dee2aaSAndroid Build Coastguard Worker // the effect is nonsense. Here we test that it fails when passed nonsense parameters.
30*c8dee2aaSAndroid Build Coastguard Worker
DEF_TEST(DashPathEffectTest_crbug_348821,r)31*c8dee2aaSAndroid Build Coastguard Worker DEF_TEST(DashPathEffectTest_crbug_348821, r) {
32*c8dee2aaSAndroid Build Coastguard Worker SkScalar intervals[] = { 1.76934361e+36f, 2.80259693e-45f }; // Values from bug.
33*c8dee2aaSAndroid Build Coastguard Worker const int count = 2;
34*c8dee2aaSAndroid Build Coastguard Worker SkScalar phase = SK_ScalarInfinity; // Used to force a nonsense effect.
35*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, count, phase));
36*c8dee2aaSAndroid Build Coastguard Worker
37*c8dee2aaSAndroid Build Coastguard Worker REPORTER_ASSERT(r, dash == nullptr);
38*c8dee2aaSAndroid Build Coastguard Worker }
39*c8dee2aaSAndroid Build Coastguard Worker
40*c8dee2aaSAndroid Build Coastguard Worker // Test out the asPoint culling behavior.
DEF_TEST(DashPathEffectTest_asPoints,r)41*c8dee2aaSAndroid Build Coastguard Worker DEF_TEST(DashPathEffectTest_asPoints, r) {
42*c8dee2aaSAndroid Build Coastguard Worker
43*c8dee2aaSAndroid Build Coastguard Worker const SkScalar intervals[] = { 1.0f, 1.0f };
44*c8dee2aaSAndroid Build Coastguard Worker const int count = 2;
45*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, count, 0.0f));
46*c8dee2aaSAndroid Build Coastguard Worker
47*c8dee2aaSAndroid Build Coastguard Worker SkRect cull = SkRect::MakeWH(1.0f, 1.0f);
48*c8dee2aaSAndroid Build Coastguard Worker
49*c8dee2aaSAndroid Build Coastguard Worker const struct {
50*c8dee2aaSAndroid Build Coastguard Worker SkPoint fPts[2];
51*c8dee2aaSAndroid Build Coastguard Worker bool fExpectedResult;
52*c8dee2aaSAndroid Build Coastguard Worker } testCases[] = {
53*c8dee2aaSAndroid Build Coastguard Worker { { { -5.0f, 0.5f }, { -4.0f, 0.5f } }, false }, // off to the left
54*c8dee2aaSAndroid Build Coastguard Worker { { { 4.0f, 0.5f }, { 5.0f, 0.5f } }, false }, // off to the right
55*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, 4.0f }, { 0.5f, 5.0f } }, false }, // off the bottom
56*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, -5.0f }, { 0.5f, -4.0f } }, false }, // off the top
57*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, 0.2f }, { 0.5f, 0.8f } }, true }, // entirely inside vertical
58*c8dee2aaSAndroid Build Coastguard Worker { { { 0.2f, 0.5f }, { 0.8f, 0.5f } }, true }, // entirely inside horizontal
59*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, -5.0f }, { 0.5f, 5.0f } }, true }, // straddles both sides vertically
60*c8dee2aaSAndroid Build Coastguard Worker { { { -5.0f, 0.5f }, { 5.0f, 0.5f } }, true }, // straddles both sides horizontally
61*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, -5.0f }, { 0.5f, 0.5f } }, true }, // straddles top
62*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, 5.0f }, { 0.5f, 0.5f } }, true }, // straddles bottom
63*c8dee2aaSAndroid Build Coastguard Worker { { { -5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles left
64*c8dee2aaSAndroid Build Coastguard Worker { { { 5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles right
65*c8dee2aaSAndroid Build Coastguard Worker { { { 0.5f, 0.5f }, { 0.5f, 0.5f } }, false }, // zero length
66*c8dee2aaSAndroid Build Coastguard Worker };
67*c8dee2aaSAndroid Build Coastguard Worker
68*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
69*c8dee2aaSAndroid Build Coastguard Worker paint.setStyle(SkPaint::kStroke_Style);
70*c8dee2aaSAndroid Build Coastguard Worker paint.setStrokeWidth(1.0f);
71*c8dee2aaSAndroid Build Coastguard Worker SkStrokeRec rec(paint);
72*c8dee2aaSAndroid Build Coastguard Worker
73*c8dee2aaSAndroid Build Coastguard Worker static const int kNumMats = 3;
74*c8dee2aaSAndroid Build Coastguard Worker SkMatrix mats[kNumMats];
75*c8dee2aaSAndroid Build Coastguard Worker mats[0].reset();
76*c8dee2aaSAndroid Build Coastguard Worker mats[1].setRotate(90, 0.5f, 0.5f);
77*c8dee2aaSAndroid Build Coastguard Worker mats[2].setTranslate(10.0f, 10.0f);
78*c8dee2aaSAndroid Build Coastguard Worker
79*c8dee2aaSAndroid Build Coastguard Worker for (int i = 0; i < kNumMats; ++i) {
80*c8dee2aaSAndroid Build Coastguard Worker for (int j = 0; j < (int)std::size(testCases); ++j) {
81*c8dee2aaSAndroid Build Coastguard Worker for (int k = 0; k < 2; ++k) { // exercise alternating endpoints
82*c8dee2aaSAndroid Build Coastguard Worker SkPathEffectBase::PointData results;
83*c8dee2aaSAndroid Build Coastguard Worker SkPath src;
84*c8dee2aaSAndroid Build Coastguard Worker
85*c8dee2aaSAndroid Build Coastguard Worker src.moveTo(testCases[j].fPts[k]);
86*c8dee2aaSAndroid Build Coastguard Worker src.lineTo(testCases[j].fPts[(k+1)%2]);
87*c8dee2aaSAndroid Build Coastguard Worker
88*c8dee2aaSAndroid Build Coastguard Worker bool actualResult = as_PEB(dash)->asPoints(&results, src, rec, mats[i], &cull);
89*c8dee2aaSAndroid Build Coastguard Worker if (i < 2) {
90*c8dee2aaSAndroid Build Coastguard Worker REPORTER_ASSERT(r, actualResult == testCases[j].fExpectedResult);
91*c8dee2aaSAndroid Build Coastguard Worker } else {
92*c8dee2aaSAndroid Build Coastguard Worker // On the third pass all the lines should be outside the translated cull rect
93*c8dee2aaSAndroid Build Coastguard Worker REPORTER_ASSERT(r, !actualResult);
94*c8dee2aaSAndroid Build Coastguard Worker }
95*c8dee2aaSAndroid Build Coastguard Worker }
96*c8dee2aaSAndroid Build Coastguard Worker }
97*c8dee2aaSAndroid Build Coastguard Worker }
98*c8dee2aaSAndroid Build Coastguard Worker }
99*c8dee2aaSAndroid Build Coastguard Worker
DEF_TEST(DashPath_bug4871,r)100*c8dee2aaSAndroid Build Coastguard Worker DEF_TEST(DashPath_bug4871, r) {
101*c8dee2aaSAndroid Build Coastguard Worker SkPath path;
102*c8dee2aaSAndroid Build Coastguard Worker path.moveTo(30, 24);
103*c8dee2aaSAndroid Build Coastguard Worker path.cubicTo(30.002f, 24, 30, 24, 30, 24);
104*c8dee2aaSAndroid Build Coastguard Worker path.close();
105*c8dee2aaSAndroid Build Coastguard Worker
106*c8dee2aaSAndroid Build Coastguard Worker SkScalar intervals[2] = { 1, 1 };
107*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, 2, 0));
108*c8dee2aaSAndroid Build Coastguard Worker
109*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
110*c8dee2aaSAndroid Build Coastguard Worker paint.setStyle(SkPaint::kStroke_Style);
111*c8dee2aaSAndroid Build Coastguard Worker paint.setPathEffect(dash);
112*c8dee2aaSAndroid Build Coastguard Worker
113*c8dee2aaSAndroid Build Coastguard Worker SkPath fill;
114*c8dee2aaSAndroid Build Coastguard Worker skpathutils::FillPathWithPaint(path, paint, &fill);
115*c8dee2aaSAndroid Build Coastguard Worker }
116*c8dee2aaSAndroid Build Coastguard Worker
117*c8dee2aaSAndroid Build Coastguard Worker // Verify that long lines with many dashes don't cause overflows/OOMs.
DEF_TEST(DashPathEffectTest_asPoints_limit,r)118*c8dee2aaSAndroid Build Coastguard Worker DEF_TEST(DashPathEffectTest_asPoints_limit, r) {
119*c8dee2aaSAndroid Build Coastguard Worker sk_sp<SkSurface> surface(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(256, 256)));
120*c8dee2aaSAndroid Build Coastguard Worker SkCanvas* canvas = surface->getCanvas();
121*c8dee2aaSAndroid Build Coastguard Worker
122*c8dee2aaSAndroid Build Coastguard Worker SkPaint p;
123*c8dee2aaSAndroid Build Coastguard Worker p.setStyle(SkPaint::kStroke_Style);
124*c8dee2aaSAndroid Build Coastguard Worker // force the bounds to outset by a large amount
125*c8dee2aaSAndroid Build Coastguard Worker p.setStrokeWidth(5.0e10f);
126*c8dee2aaSAndroid Build Coastguard Worker const SkScalar intervals[] = { 1, 1 };
127*c8dee2aaSAndroid Build Coastguard Worker p.setPathEffect(SkDashPathEffect::Make(intervals, std::size(intervals), 0));
128*c8dee2aaSAndroid Build Coastguard Worker canvas->drawLine(1, 1, 1, 5.0e10f, p);
129*c8dee2aaSAndroid Build Coastguard Worker }
130*c8dee2aaSAndroid Build Coastguard Worker
131*c8dee2aaSAndroid Build Coastguard Worker // This used to cause SkDashImpl to walk off the end of the intervals array, due to underflow
132*c8dee2aaSAndroid Build Coastguard Worker // trying to substract a smal value from a large one in floats.
DEF_TEST(DashCrazy_crbug_875494,r)133*c8dee2aaSAndroid Build Coastguard Worker DEF_TEST(DashCrazy_crbug_875494, r) {
134*c8dee2aaSAndroid Build Coastguard Worker SkScalar vals[] = { 98, 94, 2888458849.f, 227, 0, 197 };
135*c8dee2aaSAndroid Build Coastguard Worker const int N = std::size(vals);
136*c8dee2aaSAndroid Build Coastguard Worker
137*c8dee2aaSAndroid Build Coastguard Worker SkRect cull = SkRect::MakeXYWH(43,236,57,149);
138*c8dee2aaSAndroid Build Coastguard Worker SkPath path;
139*c8dee2aaSAndroid Build Coastguard Worker path.addRect(cull);
140*c8dee2aaSAndroid Build Coastguard Worker
141*c8dee2aaSAndroid Build Coastguard Worker SkPath path2;
142*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
143*c8dee2aaSAndroid Build Coastguard Worker paint.setStyle(SkPaint::kStroke_Style);
144*c8dee2aaSAndroid Build Coastguard Worker paint.setPathEffect(SkDashPathEffect::Make(vals, N, 222));
145*c8dee2aaSAndroid Build Coastguard Worker skpathutils::FillPathWithPaint(path, paint, &path2, &cull);
146*c8dee2aaSAndroid Build Coastguard Worker }
147*c8dee2aaSAndroid Build Coastguard Worker
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