ElementRenderer.hpp

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#pragma once
 
#include "../Rendering/CameraState.hpp"
#include "../OpenGL/gl.h"
#include <ivorium_core/ivorium_core.hpp>
#include <map>
#include <vector>
 
namespace iv
{
 
class Elem;
 
class Renderable
{
public:
    virtual void render( CameraState const & camera, std::optional< float > depth_override ) = 0;
};
 
class ElementRenderer
{
public:
ClientMarker cm;
                        ElementRenderer( Instance * inst );
    Instance *          instance() const;
    
    //----------------- root control -----------------------------------
    void                init_frame();
    void                end_frame();
    
    //----------------- first pass --------------------------------
    virtual void        AddRenderable_Solid( Renderable *, GLuint shader_id, GLuint primary_texture_id ) = 0;
    virtual void        AddRenderable_Translucent( Renderable *, GLuint shader_id, GLuint primary_texture_id ) = 0;
    
    
    //----------------- second pass --------------------------------
    void                QueueSecondPass( Elem * );
    
    void                DequeueSecondPass( Elem * );
    
//--------------------- stats -----------------------------------------
    void                Notify_FirstPass_Refresh( Elem * );
    
    void                Notify_SecondPass_Refresh( Elem * );
    
protected:
    void                RunSecondPasses();
    virtual void        FrameStart() = 0;
    virtual void        RunRender( CameraState const & state ) = 0;
    
private:
    Instance *              inst;
    std::vector< Elem * >   second_pass;
    
    // stats
    unsigned _first_passes;
    unsigned _second_passes;
};
 
}