Update README for the new output alpha constants.

[movit] / gamma_compression_effect.h

diff --git a/gamma_compression_effect.h b/gamma_compression_effect.h
index 0155ee54b32fb28313d22785d91497e7f40a08c8..6727e6e905c313e75f98209e1d6a55da56f958f6 100644 (file)
--- a/gamma_compression_effect.h
+++ b/gamma_compression_effect.h
@@ -7,14 +7,20 @@
 //
 // Currently supports sRGB and Rec. 601/709.
 
+#include <string>
+
 #include "effect.h"
-#include "effect_chain.h"
+#include "image_format.h"
 
 #define COMPRESSION_CURVE_SIZE 4096
 
 class GammaCompressionEffect : public Effect {
-public:
+private:
+       // Should not be instantiated by end users.
        GammaCompressionEffect();
+       friend class EffectChain;
+
+public:
        virtual std::string effect_type_id() const { return "GammaCompressionEffect"; }
        std::string output_fragment_shader();
 
@@ -22,7 +28,7 @@ public:
 
        // Actually needs postmultiplied input as well as outputting it.
        // EffectChain will take care of that.
-       virtual AlphaHandling alpha_handling() const { return OUTPUT_ALPHA_POSTMULTIPLIED; }
+       virtual AlphaHandling alpha_handling() const { return OUTPUT_POSTMULTIPLIED_ALPHA; }
 
 private:
        GammaCurve destination_curve;