X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=alpha_division_effect.h;fp=alpha_division_effect.h;h=e700112fb2a909c108c2ddb48ccbb3b96d5ab0ed;hp=0000000000000000000000000000000000000000;hb=caa05550e868db406e4b54e69d60b5573f59cb60;hpb=96591ba1b5bffa57724fa90e13d1f2cdc810ccd5

diff --git a/alpha_division_effect.h b/alpha_division_effect.h
new file mode 100644
index 0000000..e700112
--- /dev/null
+++ b/alpha_division_effect.h
@@ -0,0 +1,15 @@
+#ifndef _ALPHA_DIVISION_EFFECT_H
+#define _ALPHA_DIVISION_EFFECT_H 1
+
+// Convert premultiplied alpha to postmultiplied alpha, simply by multiplying.
+
+#include "effect.h"
+
+class AlphaDivisionEffect : public Effect {
+public:
+	AlphaDivisionEffect() {}
+	virtual std::string effect_type_id() const { return "AlphaDivisionEffect"; }
+	std::string output_fragment_shader();
+};
+
+#endif // !defined(_ALPHA_DIVISION_EFFECT_H)