X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=dither_effect.h;h=314390752cebde884f87f8d54db798f33f310cae;hp=535b783959a4a3355d16873ddbfe27f734baede6;hb=82c71bc88157a182d739b5c763dbbcfd4b8eeef8;hpb=b10c546f579c7ccb5939161e61a71cd18a3f9bbd

diff --git a/dither_effect.h b/dither_effect.h
index 535b783..3143907 100644
--- a/dither_effect.h
+++ b/dither_effect.h
@@ -43,11 +43,19 @@
 // like many LCD monitors do, but it starts to get very hairy, again, for limited gains.)
 // The dither is also deterministic across runs.
 
+#include <GL/glew.h>
+#include <string>
+
 #include "effect.h"
 
 class DitherEffect : public Effect {
-public:
+private:
+	// Should not be instantiated by end users;
+	// call EffectChain::set_dither_bits() instead.
 	DitherEffect();
+	friend class EffectChain;
+
+public:
 	~DitherEffect();
 	virtual std::string effect_type_id() const { return "DitherEffect"; }
 	std::string output_fragment_shader();