Implement GammaCompressionEffect using ALU ops instead of texture lookups.

[movit] / gamma_compression_effect.h

diff --git a/gamma_compression_effect.h b/gamma_compression_effect.h
index 235850a9d75550d7adb5f144e977cc6ebfc8ebd4..342e02630b480e7a36358e0411f2f041d28c549d 100644 (file)
--- a/gamma_compression_effect.h
+++ b/gamma_compression_effect.h
@@ -14,8 +14,6 @@
 #include "effect.h"
 #include "image_format.h"
 
-#define COMPRESSION_CURVE_SIZE 4096
-
 class GammaCompressionEffect : public Effect {
 private:
        // Should not be instantiated by end users.
@@ -25,6 +23,7 @@ private:
 public:
        virtual std::string effect_type_id() const { return "GammaCompressionEffect"; }
        std::string output_fragment_shader();
+       virtual void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
        virtual bool needs_srgb_primaries() const { return false; }
 
@@ -34,7 +33,6 @@ public:
 
 private:
        GammaCurve destination_curve;
-       float compression_curve[COMPRESSION_CURVE_SIZE];
 };
 
 #endif // !defined(_MOVIT_GAMMA_COMPRESSION_EFFECT_H)