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
|
/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkPaint.h"
#include "SkPath.h"
#include "SkRect.h"
#include "SkStroke.h"
#include "SkStrokeRec.h"
#include "Test.h"
static bool equal(const SkRect& a, const SkRect& b) {
return SkScalarNearlyEqual(a.left(), b.left()) &&
SkScalarNearlyEqual(a.top(), b.top()) &&
SkScalarNearlyEqual(a.right(), b.right()) &&
SkScalarNearlyEqual(a.bottom(), b.bottom());
}
static void test_strokecubic(skiatest::Reporter* reporter) {
uint32_t hexCubicVals[] = {
0x424c1086, 0x44bcf0cb, // fX=51.0161362 fY=1511.52478
0x424c107c, 0x44bcf0cb, // fX=51.0160980 fY=1511.52478
0x424c10c2, 0x44bcf0cb, // fX=51.0163651 fY=1511.52478
0x424c1119, 0x44bcf0ca, // fX=51.0166969 fY=1511.52466
};
SkPoint cubicVals[] = {
{51.0161362f, 1511.52478f },
{51.0160980f, 1511.52478f },
{51.0163651f, 1511.52478f },
{51.0166969f, 1511.52466f },
};
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0.394537568f);
SkPath path, fillPath;
path.moveTo(cubicVals[0]);
path.cubicTo(cubicVals[1], cubicVals[2], cubicVals[3]);
paint.getFillPath(path, &fillPath);
path.reset();
path.moveTo(SkBits2Float(hexCubicVals[0]), SkBits2Float(hexCubicVals[1]));
path.cubicTo(SkBits2Float(hexCubicVals[2]), SkBits2Float(hexCubicVals[3]),
SkBits2Float(hexCubicVals[4]), SkBits2Float(hexCubicVals[5]),
SkBits2Float(hexCubicVals[6]), SkBits2Float(hexCubicVals[7]));
paint.getFillPath(path, &fillPath);
}
static void test_strokerect(skiatest::Reporter* reporter) {
const SkScalar width = SkIntToScalar(10);
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(width);
SkRect r = { 0, 0, SkIntToScalar(200), SkIntToScalar(100) };
SkRect outer(r);
outer.outset(width/2, width/2);
static const SkPaint::Join joins[] = {
SkPaint::kMiter_Join, SkPaint::kRound_Join, SkPaint::kBevel_Join
};
for (size_t i = 0; i < SK_ARRAY_COUNT(joins); ++i) {
paint.setStrokeJoin(joins[i]);
SkPath path, fillPath;
path.addRect(r);
paint.getFillPath(path, &fillPath);
REPORTER_ASSERT(reporter, equal(outer, fillPath.getBounds()));
bool isMiter = SkPaint::kMiter_Join == joins[i];
SkRect nested[2];
REPORTER_ASSERT(reporter, fillPath.isNestedFillRects(nested) == isMiter);
if (isMiter) {
SkRect inner(r);
inner.inset(width/2, width/2);
REPORTER_ASSERT(reporter, equal(nested[0], outer));
REPORTER_ASSERT(reporter, equal(nested[1], inner));
}
}
}
static void test_strokerec_equality(skiatest::Reporter* reporter) {
{
SkStrokeRec s1(SkStrokeRec::kFill_InitStyle);
SkStrokeRec s2(SkStrokeRec::kFill_InitStyle);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
// Test that style mismatch is detected.
s2.setHairlineStyle();
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
s1.setHairlineStyle();
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
// ResScale is not part of equality.
s1.setResScale(2.1f);
s2.setResScale(1.2f);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s1.setFillStyle();
s2.setFillStyle();
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s1.setStrokeStyle(1.0f, false);
s2.setStrokeStyle(1.0f, false);
s1.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.9f);
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.9f);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
}
// Stroke parameters on fill or hairline style are not part of equality.
{
SkStrokeRec s1(SkStrokeRec::kFill_InitStyle);
SkStrokeRec s2(SkStrokeRec::kFill_InitStyle);
for (int i = 0; i < 2; ++i) {
s1.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.9f);
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.1f);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kBevel_Join, 2.9f);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s2.setStrokeParams(SkPaint::kRound_Cap, SkPaint::kRound_Join, 2.9f);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s1.setHairlineStyle();
s2.setHairlineStyle();
}
}
// Stroke parameters on stroke style are part of equality.
{
SkStrokeRec s1(SkStrokeRec::kFill_InitStyle);
SkStrokeRec s2(SkStrokeRec::kFill_InitStyle);
s1.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.9f);
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.9f);
s1.setStrokeStyle(1.0f, false);
s2.setStrokeStyle(1.0f, true);
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
s2.setStrokeStyle(2.1f, false);
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
s2.setStrokeStyle(1.0f, false);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kRound_Join, 2.1f);
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
s2.setStrokeParams(SkPaint::kButt_Cap, SkPaint::kBevel_Join, 2.9f);
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
s2.setStrokeParams(SkPaint::kRound_Cap, SkPaint::kRound_Join, 2.9f);
REPORTER_ASSERT(reporter, !s1.hasEqualEffect(s2));
// Sets fill.
s1.setStrokeStyle(0.0f, true);
s2.setStrokeStyle(0.0f, true);
REPORTER_ASSERT(reporter, s1.hasEqualEffect(s2));
}
}
DEF_TEST(Stroke, reporter) {
test_strokecubic(reporter);
test_strokerect(reporter);
test_strokerec_equality(reporter);
}
|
