GaussianBlur.hpp

#pragma once
 
#include "resources/Texture.hpp"
#include "graphics/Program.hpp"
#include "Common.hpp"
 
class GaussianBlur {
 
public:
    GaussianBlur(uint radius, uint downscale, const std::string & name);
 
    void process(const Texture& src, Texture & dst);
 
private:
 
    void resize(uint width, uint height);
 
    Program * _blurProgramDown;                     
    Program * _blurProgramUp;                       
    Program * _passthrough;                         
    std::vector<Texture> _levels;                   
    uint _downscale = 1;                            
};