Composition.h

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#ifndef GlobeEngine_Composition_h
#define GlobeEngine_Composition_h

#include "OpenGL_Includes.h"
#include "DrawableComponent.h"
#include "TextureHandle.h"
#include "Camera.h"
#include "Shader.h"
#include "SceneStateSet.h"
#include "FrameBufferObject.h"
#include <vmmlib/matrix.hpp>
#include <memory>

namespace ge {
    class Composition : public ge::DrawableComponent
    {
    public:
        Composition();
        ~Composition();
        void clear();
        void create(std::shared_ptr<ge::Shader> _shader);
        void create(std::string _shaderFile);
        void update() {};
        void setSceneState(SceneStateSet* _state);
        void createFramebuffer(enum FrameBufferObject::FBOTYPE _type, int _w, int _h, int _channels);
        void draw(std::shared_ptr<ge::Camera> _cam);
        void setTextureHandle(GLint _unit,const std::shared_ptr<ge::TextureHandle> _handle);

        void setModelViewMatrix(vmml::Matrix4d _mat);
        void setProjectionMatrix(vmml::Matrix4d _mat);
        void setInverseViewProjectionMatrix(vmml::Matrix4d _inverseViewProjectionMatrix);
        FrameBufferObject* getFrameBuffer();
        
        void setViewport(vmml::Vector2d _viewport);
        
        void enable();
        void disable();
        bool isEnabled();
        void enableFramebuffer();
        void disableFramebuffer();
        bool isFramebufferEnabled();
        void setZeroFramebufferID(int _id);
        
        void reloadShader(std::shared_ptr<ge::Shader> _shader);

    protected:
        void create();
        virtual void drawFrame(std::shared_ptr<ge::Camera> _cam);
        void drawPlane();
        void setUniformsForMatrices();
        
        SceneStateSet* sceneState;
        FrameBufferObject compositionFramebuffer;
        
        vmml::Matrix4d modelViewMatrix;
        vmml::Matrix4d projectionMatrix;
        vmml::Matrix4d inverseViewProjectionMatrix;

        bool enabled;
        bool enabledFramebuffer;

        int texChannels;
        std::shared_ptr<ge::TextureHandle> textures[32];
        
        vmml::Vector2d viewport;

    };
}

#endif