#ifndef _MOVIT_ALPHA_DIVISION_EFFECT_H
#define _MOVIT_ALPHA_DIVISION_EFFECT_H 1
-// Convert premultiplied alpha to postmultiplied alpha, simply by multiplying.
+// Convert postmultiplied alpha to premultiplied alpha, simply by dividing.
#include <string>
#include "effect.h"
+namespace movit {
+
class AlphaDivisionEffect : public Effect {
public:
AlphaDivisionEffect() {}
- virtual std::string effect_type_id() const { return "AlphaDivisionEffect"; }
- std::string output_fragment_shader();
+ std::string effect_type_id() const override { return "AlphaDivisionEffect"; }
+ std::string output_fragment_shader() override;
+ bool strong_one_to_one_sampling() const override { return true; }
};
+} // namespace movit
+
#endif // !defined(_MOVIT_ALPHA_DIVISION_EFFECT_H)