1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #ifndef FLOATCOLOR_H
17 #define FLOATCOLOR_H
18 
19 #include "utils/Macros.h"
20 #include "utils/MathUtils.h"
21 
22 #include <stdint.h>
23 
24 namespace android {
25 namespace uirenderer {
26 
27 struct FloatColor {
setFloatColor28     void set(uint32_t color) {
29         a = ((color >> 24) & 0xff) / 255.0f;
30         r = a * ((color >> 16) & 0xff) / 255.0f;
31         g = a * ((color >>  8) & 0xff) / 255.0f;
32         b = a * ((color      ) & 0xff) / 255.0f;
33     }
34 
isNotBlackFloatColor35     bool isNotBlack() {
36         return a < 1.0f
37                 || r > 0.0f
38                 || g > 0.0f
39                 || b > 0.0f;
40     }
41 
42     bool operator==(const FloatColor& other) const {
43         return MathUtils::areEqual(r, other.r)
44                 && MathUtils::areEqual(g, other.g)
45                 && MathUtils::areEqual(b, other.b)
46                 && MathUtils::areEqual(a, other.a);
47     }
48 
49     bool operator!=(const FloatColor& other) const {
50         return !(*this == other);
51     }
52 
53     float r;
54     float g;
55     float b;
56     float a;
57 };
58 
59 REQUIRE_COMPATIBLE_LAYOUT(FloatColor);
60 
61 } /* namespace uirenderer */
62 } /* namespace android */
63 
64 #endif /* FLOATCOLOR_H */
65