Daltonizer.h revision ff2ed70fa30f04b90dd1a2c06ec2319e157152d7 
1/*
2 * Copyright 2013 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
17#ifndef SF_EFFECTS_DALTONIZER_H_
18#define SF_EFFECTS_DALTONIZER_H_
19
20#include <ui/mat4.h>
21
22namespace android {
23
24class Daltonizer {
25public:
26    enum ColorBlindnessTypes {
27        protanopia,         // L (red) cone missing
28        deuteranopia,       // M (green) cone missing
29        tritanopia,         // S (blue) cone missing
30        protanomaly,        // L (red) cone deficient
31        deuteranomaly,      // M (green) cone deficient (most common)
32        tritanomaly         // S (blue) cone deficient
33    };
34
35    enum Mode {
36        simulation,
37        correction
38    };
39
40    Daltonizer();
41    ~Daltonizer();
42
43    void setType(ColorBlindnessTypes type);
44    void setMode(Mode mode);
45
46    // returns the color transform to apply in the shader
47    const mat4& operator()();
48
49private:
50    void update();
51
52    ColorBlindnessTypes mType;
53    Mode mMode;
54    bool mDirty;
55    mat4 mColorTransform;
56};
57
58} /* namespace android */
59#endif /* SF_EFFECTS_DALTONIZER_H_ */
60