Make Input an abstract base class, and move the current functionality into FlatInput...

[movit] / gamma_expansion_effect.h

diff --git a/gamma_expansion_effect.h b/gamma_expansion_effect.h
index 497a38c7ec4f756d1f222f300d897dc9d51f8e24..79926176ddf21688b80a8739ed991ec701d00b81 100644 (file)
--- a/gamma_expansion_effect.h
+++ b/gamma_expansion_effect.h
@@ -1,15 +1,28 @@
 #ifndef _GAMMA_EXPANSION_EFFECT_H 
 #define _GAMMA_EXPANSION_EFFECT_H 1
 
+// An effect to convert the given gamma curve into linear light,
+// typically inserted by the framework automatically at the beginning
+// of the processing chain.
+//
+// Currently supports sRGB and Rec. 601/709.
+
 #include "effect.h"
 #include "effect_chain.h"
 
+#define EXPANSION_CURVE_SIZE 256
+
 class GammaExpansionEffect : public Effect {
 public:
        GammaExpansionEffect();
+       std::string output_fragment_shader();
+
+       virtual bool needs_linear_light() const { return false; }
+       virtual bool needs_srgb_primaries() const { return false; }
 
 private:
        GammaCurve source_curve;
+       float expansion_curve[EXPANSION_CURVE_SIZE];
 };
 
 #endif // !defined(_GAMMA_EXPANSION_EFFECT_H)