X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=2239f969b536d6500fc1cf097b02a9cfcdf7127f;hp=c9a08bfd8f85091ec711175b274de77cb9b09359;hb=HEAD;hpb=e8650c7b7814c5beef59059b8acac3e5e7b8ddc6 diff --git a/vignette_effect.h b/vignette_effect.h index c9a08bf..2239f96 100644 --- a/vignette_effect.h +++ b/vignette_effect.h @@ -1,21 +1,36 @@ -#ifndef _VIGNETTE_EFFECT_H -#define _VIGNETTE_EFFECT_H 1 +#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 +#include + #include "effect.h" +namespace movit { + class VignetteEffect : public Effect { public: VignetteEffect(); - std::string output_fragment_shader(); + std::string effect_type_id() const override { return "VignetteEffect"; } + std::string output_fragment_shader() override; - void set_uniforms(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num); + bool needs_srgb_primaries() const override { return false; } + AlphaHandling alpha_handling() const override { return DONT_CARE_ALPHA_TYPE; } + bool strong_one_to_one_sampling() const override { return true; } + + void inform_input_size(unsigned input_num, unsigned width, unsigned height) override; + void set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num) override; private: Point2D center; + Point2D uniform_aspect_correction, uniform_flipped_center; float radius, inner_radius; + float uniform_pihalf_div_radius; }; -#endif // !defined(_VIGNETTE_EFFECT_H) +} // namespace movit + +#endif // !defined(_MOVIT_VIGNETTE_EFFECT_H)