MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/caches/SoGLRenderCache.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  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.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */


/*
 * Copyright (C) 1990,91   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      This file defines the SoGLRenderCache class, which is used for
 |      storing caches during GL rendering.
 |
 |   Author(s)          : Paul S. Strauss, Gavin Bell
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */


#ifndef  _SO_GL_RENDER_CACHE
#define  _SO_GL_RENDER_CACHE

#include <Inventor/system/SbSystem.h>
#include <Inventor/system/SbOpenGL.h>
#include <Inventor/caches/SoCache.h>
#include <Inventor/elements/SoGLLazyElement.h>


class SoGLDisplayList;

SoEXTENDER class INVENTOR_API SoGLRenderCache : public SoCache {

  public:
    SoGLRenderCache(SoState *state);
    ~SoGLRenderCache();

    virtual void        addNestedCache(SoGLDisplayList *child);

    void                open(SoState *state);
    void                close();

    void                call(SoState *state);

    virtual SbBool      isValid(const SoState *state) const;
 
    void setLazyBits(uint32_t ivFlag, uint32_t glFlag, uint32_t sendFlag)
        {checkGLFlag |= glFlag;
        checkIVFlag |= ivFlag;
        doSendFlag |= sendFlag;}
        
    SoGLLazyElement* getLazyElt() 
        {return GLCacheLazyElement;}

  protected:
    virtual void        destroy(SoState *state);

  private:
    SoGLDisplayList     *list;          
    SbBool              listOpen;       
    SbPList             nestedCaches;   

    SoState *           saveState;

    SoGLLazyElement *   GLCacheLazyElement;
    
    SoGLLazyElement::GLLazyState    cachedGLState;

    uint32_t            checkGLFlag;

    uint32_t            checkIVFlag;

    uint32_t            doSendFlag;
    
};

#endif /* _SO_GL_RENDER_CACHE */