VRS - The Virtual Rendering System

version 3.3

accumbuffergl.h

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 /**********************************************************************
 VRS - The Virtual Rendering System
 Copyright (C) 2001 Computer Graphics Systems Group at the 
 Hasso-Plattner-Institute, Potsdam, Germany.
 This library is free software; you can redistribute it and/or 
 modify it under the terms of the GNU Lesser General Public 
 License as published by the Free Software Foundation; either 
 version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful, but 
 WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 See the GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser+ General Public
 License along with this library; if not, write to the FreeSoftware 
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA, 02111-1307, USA.
 **********************************************************************/
// $Id: accumbuffergl.h 6014 2007-08-09 07:51:16Z Konstantin_Baumann $
// $Date: 2007-08-09 09:51:16 +0200 (Thu, 09 Aug 2007) $
// $Revision: 6014 $
// $State$
// $Author: Konstantin_Baumann $
//
// $Log$
// Revision 1.19  2005/06/21 15:41:08  baumann
// changed color definition
//
// Revision 1.18  2005/01/03 01:43:09  klimetschek
// - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
// - removed vrs.vcproj
// minor things:
// - added all glutexamples to vrs4glut.sln
// - fixed some problems in glutexamples
// - removed all project references from all VS projects (using solution wide project dependencies instead)
//
// Revision 1.17  2004/11/03 14:45:06  saar
// Class comment changed (Doxygen style)
//
// Revision 1.16  2004/10/25 11:33:59  kirsch
// fixed doxygen class documentation
//
// Revision 1.15  2004/03/12 16:28:40  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.14  2004/01/19 11:43:58  baumann
// serialization mechanism improved
//
// Revision 1.13  2004/01/19 07:28:02  baumann
// serialization mechanism improved
//
// Revision 1.12  2003/11/07 14:19:25  kirsch
// removed leading underscore from include guards
//
// Revision 1.11  2003/07/23 17:04:49  baumann
// code cleanup (especially untabified)
//
// Revision 1.10  2002/10/29 10:32:52  baumann
// macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
//
// Revision 1.9  2002/04/24 00:06:15  guenther
// made persistent
//
// Revision 1.8  2002/03/03 21:44:25  kosta
// VRS_TYPEINFO-macro rewritten
//
// Revision 1.7  2002/02/22 07:14:30  kirsch
// simplified assertion check, updated comments
//
// Revision 1.6  2002/02/19 10:34:17  kosta
// undone all changes since 2002-02-15
//
// Revision 1.3  2002/01/15 16:25:54  kosta
// macros rewritten for a better namespace support
//
// Revision 1.2  2001/11/13 16:36:31  kirsch
// changed line feed to unix style (removed control-M)
//
// Revision 1.1.1.1  2001/06/08 08:09:21  kirsch
// imported alpha-version by olli 
//


#ifndef VRS_OPENGL_ACCUMBUFFERGL_H
#define VRS_OPENGL_ACCUMBUFFERGL_H

#include <vrs/color.h>
#include <vrs/monoattribute.h>
#include <vrs/opengl/openglconfig.h>

namespace VRS {

class VRS_CORE_API AccumBufferGL : public MonoAttribute {
public:
    enum Operations {
        ClearAccumBuffer = 1 << 0,
        Accum            = 1 << 1,
        Load             = 1 << 2,
        Add              = 1 << 3,
        Mult             = 1 << 4,
        Return           = 1 << 5
    };
    VRS_SERIALIZABLE_CLASS_ENUM(Operations);
    
    AccumBufferGL(int ops,
        GLfloat value = 1.0,
        GLenum buffer = GL_BACK,  // use backbuffer by default
        const Color& clearColor = Color::black
    );
    void enableOperation(int flagToBeAdded);
    void disableOperation(int flagToBeRemoved);
    int getOperations() const;

    void setClearColor(const Color&);
    Color getClearColor() const;

    void setValue(GLfloat value);
    GLfloat getValue() const;
    void setBuffer(GLenum buffer);
    GLenum getBuffer() const;
    VRS_TYPEINFO(AccumBufferGL, MonoAttribute);
    VRS_SERIALIZABLE(AccumBufferGL);

protected:
    // for persistency only!
    AccumBufferGL();
        
private:
    int ops_;
    GLfloat value_;
    GLenum buffer_;
    Color color_;
};

inline int AccumBufferGL::getOperations() const { return ops_; }
inline Color AccumBufferGL::getClearColor() const { return color_; }
inline GLfloat AccumBufferGL::getValue() const { return value_; }
inline GLenum AccumBufferGL::getBuffer() const { return buffer_; }

} // namespace VRS

#endif // VRS_OPENGL_ACCUMBUFFERGL_H

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