X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=alpha_division_effect.h;h=ae8f786e3075040c147f844da3ff8afae2326667;hb=7878253d0d7b5aaa6b701499e588b31f2c5edca2;hp=2b51c3a7256c6e53ca7633b561cfef1864c13aa6;hpb=37f56fcbe571b2322243f6de59494bf9e0cbb37a;p=movit

diff --git a/alpha_division_effect.h b/alpha_division_effect.h
index 2b51c3a..ae8f786 100644
--- a/alpha_division_effect.h
+++ b/alpha_division_effect.h
@@ -1,12 +1,14 @@
-#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() {}
@@ -14,4 +16,6 @@ public:
 	std::string output_fragment_shader();
 };
 
-#endif // !defined(_ALPHA_DIVISION_EFFECT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_ALPHA_DIVISION_EFFECT_H)