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 22 namespace android { 23 24 class Daltonizer { 25 public: 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 49 private: 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