X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=alpha_multiplication_effect.h;h=f342719c5987b0e3304e5b0782811829b3680faa;hp=c64f2dce050d075f4230d9beca8841f173fb7ce0;hb=2fd06b9c44225d1e740cb2de08a9dfa5c9cd0031;hpb=caa05550e868db406e4b54e69d60b5573f59cb60

diff --git a/alpha_multiplication_effect.h b/alpha_multiplication_effect.h
index c64f2dc..f342719 100644
--- a/alpha_multiplication_effect.h
+++ b/alpha_multiplication_effect.h
@@ -1,15 +1,22 @@
-#ifndef _ALPHA_MULTIPLICATION_EFFECT_H
-#define _ALPHA_MULTIPLICATION_EFFECT_H 1
+#ifndef _MOVIT_ALPHA_MULTIPLICATION_EFFECT_H
+#define _MOVIT_ALPHA_MULTIPLICATION_EFFECT_H 1
 
 // Convert postmultiplied alpha to premultiplied alpha, simply by multiplying.
 
+#include <string>
+
 #include "effect.h"
 
+namespace movit {
+
 class AlphaMultiplicationEffect : public Effect {
 public:
 	AlphaMultiplicationEffect() {}
 	virtual std::string effect_type_id() const { return "AlphaMultiplicationEffect"; }
 	std::string output_fragment_shader();
+	virtual bool one_to_one_sampling() const { return true; }
 };
 
-#endif // !defined(_ALPHA_MULTIPLICATION_EFFECT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_ALPHA_MULTIPLICATION_EFFECT_H)