framebufferObject.h

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/*
  Copyright (c) 2005,
      Aaron Lefohn    (lefohn@cs.ucdavis.edu)
      Robert Strzodka (strzodka@stanford.edu)
      Adam Moerschell (atmoerschell@ucdavis.edu)
  All rights reserved.

  This software is licensed under the BSD open-source license. See
  http://www.opensource.org/licenses/bsd-license.php for more detail.

  *************************************************************
  Redistribution and use in source and binary forms, with or
  without modification, are permitted provided that the following
  conditions are met:

  Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.

  Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.

  Neither the name of the University of Californa, Davis nor the names of
  the contributors may be used to endorse or promote products derived
  from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  OF SUCH DAMAGE.
*/

#ifndef UCDAVIS_FRAMEBUFFER_OBJECT_H
#define UCDAVIS_FRAMEBUFFER_OBJECT_H

// Added by Franck P. Vidal
#ifndef __gVirtualXRayConfig_h
#include "gVirtualXRay/gVirtualXRayConfig.h"
#endif

#include <iostream>

class FramebufferObject
{
public:
  FramebufferObject();
  virtual ~FramebufferObject();

  void Bind();

  virtual void AttachTexture( GLenum texTarget,
                              GLuint texId,
                              GLenum attachment = GL_COLOR_ATTACHMENT0,
                              int mipLevel      = 0,
                              int zSlice        = 0 );

  virtual void AttachTextures( int numTextures,
                               GLenum texTarget[],
                               GLuint texId[],
                               GLenum attachment[] = NULL,
                               int mipLevel[]      = NULL,
                               int zSlice[]        = NULL );

  virtual void AttachRenderBuffer( GLuint buffId,
                                   GLenum attachment = GL_COLOR_ATTACHMENT0);

  virtual void AttachRenderBuffers( int numBuffers, GLuint buffId[],
                                    GLenum attachment[] = NULL );

  void Unattach( GLenum attachment );

  void UnattachAll();

#ifndef NDEBUG
  bool IsValid( std::ostream& ostr = std::cerr );
#else
  bool IsValid( std::ostream& ostr = std::cerr ) {
    return true;
  }
#endif

    GLenum GetAttachedType( GLenum attachment );

    GLuint GetAttachedId( GLenum attachment );

    GLint  GetAttachedMipLevel( GLenum attachment );

    GLint  GetAttachedCubeFace( GLenum attachment );

   // GLint  GetAttachedZSlice( GLenum attachment );


    static int GetMaxColorAttachments();

    static void Disable();

        inline GLuint getID() const {return m_fboId;}

protected:
  void  _GuardedBind();
  void  _GuardedUnbind();
  void  _FramebufferTextureND( GLenum attachment, GLenum texTarget,
                               GLuint texId, int mipLevel, int zSlice );
  static GLuint _GenerateFboId();

private:
  GLuint m_fboId;
  GLint  m_savedFboId;
};

#endif