X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=gamma_expansion_effect.h;h=429bd25c4f8cf55de6fa9e907e9be1abdf2db4c2;hp=679c16d24d92c2adb28ebe1eac708048e2d9029c;hb=8e9f58fec54a4c879035b214fd7411f6ff7b3a32;hpb=9a00101dbb6f98d21c6b8ce4d33200af840ea908

diff --git a/gamma_expansion_effect.h b/gamma_expansion_effect.h
index 679c16d..429bd25 100644
--- a/gamma_expansion_effect.h
+++ b/gamma_expansion_effect.h
@@ -6,12 +6,17 @@
 // of the processing chain.
 //
 // Currently supports sRGB, Rec. 601/709 and Rec. 2020 (10- and 12-bit).
+// Note that Movit's internal formats generally do not have enough accuracy
+// for 12-bit input or output.
 
+#include <epoxy/gl.h>
 #include <string>
 
 #include "effect.h"
 #include "image_format.h"
 
+namespace movit {
+
 class GammaExpansionEffect : public Effect {
 private:
 	// Should not be instantiated by end users.
@@ -25,6 +30,7 @@ public:
 
 	virtual bool needs_linear_light() const { return false; }
 	virtual bool needs_srgb_primaries() const { return false; }
+	virtual bool one_to_one_sampling() const { return true; }
 
 	// Actually processes its input in a nonlinear fashion,
 	// but does not touch alpha, and we are a special case anyway.
@@ -32,6 +38,9 @@ public:
 
 private:
 	GammaCurve source_curve;
+	float uniform_linear_scale, uniform_c[5], uniform_beta;
 };
 
+}  // namespace movit
+
 #endif // !defined(_MOVIT_GAMMA_EXPANSION_EFFECT_H)