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
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrTestUtils.h"
#include "SkMatrix.h"
#include "SkRRect.h"
#ifdef GR_TEST_UTILS
namespace GrTest {
const SkMatrix& TestMatrix(SkRandom* random) {
static SkMatrix gMatrices[5];
static bool gOnce;
if (!gOnce) {
gOnce = true;
gMatrices[0].reset();
gMatrices[1].setTranslate(SkIntToScalar(-100), SkIntToScalar(100));
gMatrices[2].setRotate(SkIntToScalar(17));
gMatrices[3].setRotate(SkIntToScalar(185));
gMatrices[3].postTranslate(SkIntToScalar(66), SkIntToScalar(-33));
gMatrices[3].postScale(SkIntToScalar(2), SK_ScalarHalf);
gMatrices[4].setRotate(SkIntToScalar(215));
gMatrices[4].set(SkMatrix::kMPersp0, 0.00013f);
gMatrices[4].set(SkMatrix::kMPersp1, -0.000039f);
}
return gMatrices[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gMatrices)))];
}
const SkMatrix& TestMatrixPreservesRightAngles(SkRandom* random) {
static SkMatrix gMatrices[5];
static bool gOnce;
if (!gOnce) {
gOnce = true;
// identity
gMatrices[0].reset();
// translation
gMatrices[1].setTranslate(SkIntToScalar(-100), SkIntToScalar(100));
// scale
gMatrices[2].setScale(SkIntToScalar(17), SkIntToScalar(17));
// scale + translation
gMatrices[3].setScale(SkIntToScalar(-17), SkIntToScalar(-17));
gMatrices[3].postTranslate(SkIntToScalar(66), SkIntToScalar(-33));
// orthogonal basis vectors
gMatrices[4].reset();
gMatrices[4].setScale(SkIntToScalar(-1), SkIntToScalar(-1));
gMatrices[4].setRotate(47);
for (size_t i = 0; i < SK_ARRAY_COUNT(gMatrices); i++) {
SkASSERT(gMatrices[i].preservesRightAngles());
}
}
return gMatrices[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gMatrices)))];
}
const SkMatrix& TestMatrixRectStaysRect(SkRandom* random) {
static SkMatrix gMatrices[6];
static bool gOnce;
if (!gOnce) {
gOnce = true;
// identity
gMatrices[0].reset();
// translation
gMatrices[1].setTranslate(SkIntToScalar(-100), SkIntToScalar(100));
// scale
gMatrices[2].setScale(SkIntToScalar(17), SkIntToScalar(17));
// scale + translation
gMatrices[3].setScale(SkIntToScalar(-17), SkIntToScalar(-17));
gMatrices[3].postTranslate(SkIntToScalar(66), SkIntToScalar(-33));
// reflection
gMatrices[4].setScale(SkIntToScalar(-1), SkIntToScalar(-1));
// 90 degress rotation
gMatrices[5].setRotate(90);
for (size_t i = 0; i < SK_ARRAY_COUNT(gMatrices); i++) {
SkASSERT(gMatrices[i].rectStaysRect());
}
}
return gMatrices[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gMatrices)))];
}
const SkRect& TestRect(SkRandom* random) {
static SkRect gRects[7];
static bool gOnce;
if (!gOnce) {
gOnce = true;
gRects[0] = SkRect::MakeWH(1.f, 1.f);
gRects[1] = SkRect::MakeWH(1.0f, 256.0f);
gRects[2] = SkRect::MakeWH(256.0f, 1.0f);
gRects[4] = SkRect::MakeLargest();
gRects[5] = SkRect::MakeLTRB(-65535.0f, -65535.0f, 65535.0f, 65535.0f);
gRects[6] = SkRect::MakeLTRB(10.0f, 10.0f, -10.0f, -10.0f);
}
return gRects[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gRects)))];
}
const SkRRect& TestRRectSimple(SkRandom* random) {
static SkRRect gRRect[4];
static bool gOnce;
if (!gOnce) {
gOnce = true;
SkRect square = SkRect::MakeWH(10.f, 10.f);
SkRect rectangle = SkRect::MakeWH(10.f, 20.f);
// rect
gRRect[0].setRect(square);
// oval
gRRect[1].setOval(rectangle);
// true round rect with circular corners
gRRect[2].setRectXY(rectangle, 1.f, 1.f);
// true round rect with elliptical corners
gRRect[3].setRectXY(rectangle, 2.0f, 1.0f);
for (size_t i = 0; i < SK_ARRAY_COUNT(gRRect); i++) {
SkASSERT(gRRect[i].isSimple());
}
}
return gRRect[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gRRect)))];
}
};
#endif
|
