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/*
* Copyright 2013 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 SF_EFFECTS_DALTONIZER_H_
#define SF_EFFECTS_DALTONIZER_H_
#include <math/mat4.h>
namespace android {
enum class ColorBlindnessType {
None, // Disables the Daltonizer
Protanomaly, // L (red) cone deficient
Deuteranomaly, // M (green) cone deficient (most common)
Tritanomaly // S (blue) cone deficient
};
enum class ColorBlindnessMode {
Simulation,
Correction
};
class Daltonizer {
public:
void setType(ColorBlindnessType type);
void setMode(ColorBlindnessMode mode);
// returns the color transform to apply in the shader
const mat4& operator()();
private:
void update();
ColorBlindnessType mType = ColorBlindnessType::None;
ColorBlindnessMode mMode = ColorBlindnessMode::Simulation;
bool mDirty = true;
mat4 mColorTransform;
};
} /* namespace android */
#endif /* SF_EFFECTS_DALTONIZER_H_ */
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