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////////////////////////////////////////////////////////////////////////////
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//        File:                FrameBufferObject.h
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//        Author:                Changchang Wu
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//        Description : interface for the FrameBufferObject class.
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//
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//
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//
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//        Copyright (c) 2007 University of North Carolina at Chapel Hill
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//        All Rights Reserved
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//
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//        Permission to use, copy, modify and distribute this software and its
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//        documentation for educational, research and non-profit purposes, without
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//        fee, and without a written agreement is hereby granted, provided that the
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//        above copyright notice and the following paragraph appear in all copies.
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//        
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//        The University of North Carolina at Chapel Hill make no representations
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//        about the suitability of this software for any purpose. It is provided
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//        'as is' without express or implied warranty. 
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//
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//        Please send BUG REPORTS to ccwu@cs.unc.edu
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//
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////////////////////////////////////////////////////////////////////////////
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#if !defined(_FRAME_BUFFER_OBJECT_H)
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#define _FRAME_BUFFER_OBJECT_H
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class FrameBufferObject  
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{
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        static GLuint        GlobalFBO;   //not thread-safe
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        GLuint _fboID;
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public:
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        static int                UseSingleFBO;
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public:
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        static void DeleteGlobalFBO();
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        static void UnattachTex(GLenum attachment);
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        static void UnbindFBO();
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        static void AttachDepthTexture(GLenum textureTarget, GLuint texID);
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        static void AttachTexture( GLenum textureTarget, GLenum attachment, GLuint texID);
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        static void AttachRenderBuffer(GLenum attachment,  GLuint buffID  );
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        static void UnattachRenderBuffer(GLenum attachment);
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public:
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        void BindFBO();
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        FrameBufferObject(int autobind = 1);
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        ~FrameBufferObject();
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};
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#endif