Fix an issue where a (cached) shader program could be used from multiple

[movit] / lift_gamma_gain_effect.h

diff --git a/lift_gamma_gain_effect.h b/lift_gamma_gain_effect.h
index 60978f45047c3272e78662ae31f7c1e4f289eea2..7967448d935105e3de78a19c9b5ab07ef23a5137 100644 (file)
--- a/lift_gamma_gain_effect.h
+++ b/lift_gamma_gain_effect.h
@@ -20,22 +20,28 @@
 // Also, gamma is a case where we would not want premultiplied alpha.
 // Thus, we have to divide away alpha first, and then re-multiply it back later.
 
-#include <GL/glew.h>
+#include <epoxy/gl.h>
 #include <string>
 
 #include "effect.h"
 
+namespace movit {
+
 class LiftGammaGainEffect : public Effect {
 public:
        LiftGammaGainEffect();
        virtual std::string effect_type_id() const { return "LiftGammaGainEffect"; }
        virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
+       virtual bool one_to_one_sampling() const { return true; }
        std::string output_fragment_shader();
 
        void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
 private:
        RGBTriplet lift, gamma, gain;
+       RGBTriplet uniform_gain_pow_inv_gamma, uniform_inv_gamma22;
 };
 
+}  // namespace movit
+
 #endif // !defined(_MOVIT_LIFT_GAMMA_GAIN_EFFECT_H)