// A circular vignette, falling off as cosĀ² of the distance from the center
// (the classic formula for approximating a real lens).
-#include <GL/glew.h>
+#include <epoxy/gl.h>
#include <string>
#include "effect.h"
+namespace movit {
+
class VignetteEffect : public Effect {
public:
VignetteEffect();
virtual bool needs_srgb_primaries() const { return false; }
virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
+ virtual bool one_to_one_sampling() const { return true; }
+ virtual void inform_input_size(unsigned input_num, unsigned width, unsigned height);
void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
private:
Point2D center;
+ Point2D uniform_aspect_correction, uniform_flipped_center;
float radius, inner_radius;
+ float uniform_pihalf_div_radius;
};
+} // namespace movit
+
#endif // !defined(_MOVIT_VIGNETTE_EFFECT_H)