Release Movit 1.3.2. (From a branch, since I do not want to break ABI compatibility...
[movit] / alpha_division_effect.h
index 2b51c3a..2fd9082 100644 (file)
@@ -1,17 +1,22 @@
-#ifndef _ALPHA_DIVISION_EFFECT_H
-#define _ALPHA_DIVISION_EFFECT_H 1
+#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();
+       virtual bool one_to_one_sampling() const { return true; }
 };
 
-#endif // !defined(_ALPHA_DIVISION_EFFECT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_ALPHA_DIVISION_EFFECT_H)