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////////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef __FBO_H__

#define __FBO_H__

#include "compute_types.h"

#include <OpenGL/gl.h>

class FrameBufferObject

{

public:

    FrameBufferObject();

    ~FrameBufferObject();

    bool setup(uint uiWidth, uint uiHeight, bool bUseRenderbuffer = false);

    void enable(bool bClear = false);

    void disable();

    void attach(GLenum eAttachment, GLenum eTarget, uint uiTextureId);

    void detach(GLenum eAttachment, GLenum eTarget);

    uint getWidth()                                     { return m_uiWidth; }

    uint getHeight()                                    { return m_uiHeight; }

    bool isEnabled()                                    { return m_bIsEnabled; }

    bool isAttached(GLenum eAttachment);

    bool isColorUsed();

    bool isDepthUsed();

    bool isStencilUsed();

protected:

    void destroy();

    uint createFramebuffer();

    uint createRenderbuffer(uint uiWidth, uint uiHeight);

    void checkFramebufferStatus(const char *acMessage=0);

protected:

    bool m_bIsEnabled;

    bool m_abAttached[64];

    GLint m_aiViewport[4];

    uint m_uiWidth;

    uint m_uiHeight;

    uint m_uiFramebufferId;

    uint m_uiRenderbufferId;

};

#endif