FrameBuffer.h

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#pragma once
 
#include "../Geometry/Size.h"
#include "../GL.h"
#include "../Containers/Collection.h"
 
namespace Gorgon { namespace GL {
 
    class FrameBuffer {
        friend void Resize(const Geometry::Size &size);
    public:
        FrameBuffer(const FrameBuffer &) = delete;
 
        FrameBuffer &operator = (const FrameBuffer &) = delete;
 
        FrameBuffer() {
        }
 
        explicit FrameBuffer(bool depth) : FrameBuffer() {
            Generate(depth);
        }
 
        void Generate(bool depth);
 
        void Destroy();
 
        ~FrameBuffer() {
            Destroy();
            buffers.Remove(this);
        }
 
        bool IsReady() const {
            return texture != 0 && buffer != 0;
        }
 
        bool IsFunctional() const;
 
        Texture GetTexture() const {
            return texture;
        }
 
        void Use();
 
        void RenderToScreen();
 
        static void UpdateSizes();
 
        static bool HardwareSupport;
 
    private:
#ifdef OPENGL
        Texture  texture = 0;
        uint32_t buffer  = 0;
        uint32_t depth   = 0;
#endif
 
        //this is used to resize buffer on a geometry change.
        static Containers::Collection<FrameBuffer> buffers;
    };
} }