X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=colorspace_conversion_effect.h;h=e3c60ea81730af2a2eaaffe0370e23b3a71cf35c;hp=bf3583bcd6a201eebbaf8464502c262c7dc4d04f;hb=fe785e6f62ab58ef05972850d9275005794505b7;hpb=a88f299483ffe5068cd2828513078b9103325da8

diff --git a/colorspace_conversion_effect.h b/colorspace_conversion_effect.h
index bf3583b..e3c60ea 100644
--- a/colorspace_conversion_effect.h
+++ b/colorspace_conversion_effect.h
@@ -1,12 +1,22 @@
 #ifndef _COLORSPACE_CONVERSION_EFFECT_H
 #define _COLORSPACE_CONVERSION_EFFECT_H 1
 
+// An effect to convert between different color spaces.
+// Can convert freely between sRGB/Rec. 709 and the two different Rec. 601
+// color spaces (which thankfully have the same white point).
+//
+// We don't do any fancy gamut mapping or similar; colors that are out-of-gamut
+// will simply stay out-of-gamut, and probably clip in the output stage.
+
 #include "effect.h"
 #include "effect_chain.h"
 
 class ColorSpaceConversionEffect : public Effect {
 public:
 	ColorSpaceConversionEffect();
+	std::string output_fragment_shader();
+
+	virtual bool needs_srgb_primaries() const { return false; }
 
 private:
 	ColorSpace source_space, destination_space;