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
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HWUI_VECTOR_H
#define ANDROID_HWUI_VECTOR_H
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Classes
///////////////////////////////////////////////////////////////////////////////
struct Vector2 {
float x;
float y;
Vector2() :
x(0.0f), y(0.0f) {
}
Vector2(float px, float py) :
x(px), y(py) {
}
float lengthSquared() const {
return x * x + y * y;
}
float length() const {
return sqrt(x * x + y * y);
}
void operator+=(const Vector2& v) {
x += v.x;
y += v.y;
}
void operator-=(const Vector2& v) {
x -= v.x;
y -= v.y;
}
void operator+=(const float v) {
x += v;
y += v;
}
void operator-=(const float v) {
x -= v;
y -= v;
}
void operator/=(float s) {
x /= s;
y /= s;
}
void operator*=(float s) {
x *= s;
y *= s;
}
Vector2 operator+(const Vector2& v) const {
return Vector2(x + v.x, y + v.y);
}
Vector2 operator-(const Vector2& v) const {
return Vector2(x - v.x, y - v.y);
}
Vector2 operator/(float s) const {
return Vector2(x / s, y / s);
}
Vector2 operator*(float s) const {
return Vector2(x * s, y * s);
}
void normalize() {
float s = 1.0f / length();
x *= s;
y *= s;
}
Vector2 copyNormalized() const {
Vector2 v(x, y);
v.normalize();
return v;
}
float dot(const Vector2& v) const {
return x * v.x + y * v.y;
}
void dump() {
ALOGD("Vector2[%.2f, %.2f]", x, y);
}
}; // class Vector2
class Vector3 {
public:
float x;
float y;
float z;
Vector3() :
x(0.0f), y(0.0f), z(0.0f) {
}
Vector3(float px, float py, float pz) :
x(px), y(py), z(pz) {
}
void dump() {
ALOGD("Vector3[%.2f, %.2f, %.2f]", x, y, z);
}
};
///////////////////////////////////////////////////////////////////////////////
// Types
///////////////////////////////////////////////////////////////////////////////
typedef Vector2 vec2;
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_VECTOR_H
|
