/usr/include/movit/vignette_effect.h is in libmovit-dev 1.3.1-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #ifndef _MOVIT_VIGNETTE_EFFECT_H
#define _MOVIT_VIGNETTE_EFFECT_H 1
// A circular vignette, falling off as cos² of the distance from the center
// (the classic formula for approximating a real lens).
#include <epoxy/gl.h>
#include <string>
#include "effect.h"
namespace movit {
class VignetteEffect : public Effect {
public:
VignetteEffect();
virtual std::string effect_type_id() const { return "VignetteEffect"; }
std::string output_fragment_shader();
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)
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