X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=dither_effect.h;h=cad6488921b67c5f60a3a1ac17fb97dec440b474;hb=38dfb378427d1c97113ad7644c39f7695be84c49;hp=535b783959a4a3355d16873ddbfe27f734baede6;hpb=545c9c70d0be03667a8d78da6be29836fa9c4f1d;p=movit

diff --git a/dither_effect.h b/dither_effect.h
index 535b783..cad6488 100644
--- a/dither_effect.h
+++ b/dither_effect.h
@@ -46,8 +46,13 @@
 #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();