Inventor/helpers/SbGlContextHelper.h

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/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
 ***              AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT.                     ***
 ***                                                                                ***
 ***  REPRODUCTION, DISCLOSURE,  OR USE,  IN WHOLE OR IN PART,  OTHER THAN AS       ***
 ***  SPECIFIED  IN THE LICENSE ARE  NOT TO BE  UNDERTAKEN  EXCEPT WITH PRIOR       ***
 ***  WRITTEN AUTHORIZATION OF FEI S.A.S.                                           ***
 ***                                                                                ***
 ***                        RESTRICTED RIGHTS LEGEND                                ***
 ***  USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS      ***
 ***  WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN      ***
 ***  SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT      ***
 ***  CLAUSE  AT FAR 52.227-19  OR SUBPARAGRAPH  (C)(1)(II)  OF  THE RIGHTS IN      ***
 ***  TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013.             ***
 ***                                                                                ***
 ***                   COPYRIGHT (C) 1996-2020 BY FEI S.A.S,                        ***
 ***                        BORDEAUX, FRANCE                                        ***
 ***                      ALL RIGHTS RESERVED                                       ***
**=======================================================================*/
/*=======================================================================
** Author      : Benjamin GRANGE (Dec 2008)
**=======================================================================*/


#ifndef SB_GL_CONTEXT_HELPER_H
#define SB_GL_CONTEXT_HELPER_H

#include <Inventor/SbBase.h>

#if defined(_WIN32)
#elif defined(__APPLE__)
typedef struct _CGLContextObject *CGLContextObj;
typedef struct _CGLPixelFormatObject *CGLPixelFormatObj;
typedef unsigned int CGDirectDisplayID;
#else
typedef struct _XDisplay Display;
typedef unsigned long GLXDrawable;
typedef unsigned long GLXPixmap;
#ifdef __sun
typedef struct __glXContextRec *GLXContext;
#else
typedef struct __GLXcontextRec *GLXContext;
#endif
typedef unsigned long GLXFBConfigID;
typedef unsigned long GLXWindow;
typedef unsigned long GLXPbuffer;
typedef unsigned long Colormap;
typedef unsigned long Pixmap;
typedef unsigned long Window;
#if !defined(BUILDING_SB_GL_CONTEXT_HELPER)
typedef struct __GLXFBConfigRec *GLXFBConfig;
#endif
#endif

class SoGLContext;

class SbGLShareContext
{
public:
  SoGLContext *shareContext;
  int shareContextID;

private:


  SbGLShareContext();


  SbGLShareContext(SoGLContext *shareContext, int shareContextID);


  SoGLContext * getContext();


  int getContextGroupId();
};


inline
SbGLShareContext::SbGLShareContext()
{
  shareContext = NULL;
  shareContextID = 0;
}

inline 
SbGLShareContext::SbGLShareContext(SoGLContext* _shareContext, int _shareContextID)
{
  shareContext = _shareContext;
  shareContextID = _shareContextID;
}

inline SoGLContext * 
SbGLShareContext::getContext()
{
  return shareContext;
}

inline int
SbGLShareContext::getContextGroupId()
{
  return shareContextID;
}

namespace SbGlContextHelper
{
#ifdef _WIN32
  typedef HDC Display;
  typedef HGLRC GLContext;
  typedef PIXELFORMATDESCRIPTOR* VisualInfo;
  typedef int Drawable;
#elif defined(__APPLE__)
  #undef Display
  typedef int Display;
  typedef CGLContextObj GLContext;
  typedef CGLPixelFormatObj VisualInfo;
  typedef void* Drawable;
#else
  typedef ::Display* Display;
  typedef GLXContext GLContext;
  typedef void* VisualInfo;
  typedef GLXDrawable Drawable;
#endif

   GLContext getCurrentContext();

   Display getCurrentDisplay();

   Drawable getCurrentDrawable();

   bool isValidDisplay(Display dpy);

   VisualInfo getWindowVisualInfo(Display dpy, Drawable drawable);

   VisualInfo getWindowVisualInfo(Display dpy, Drawable drawable, GLContext ctx);

  
   void releaseVisualInfo(VisualInfo visualInfo);

   GLContext createContext(Display dpy, VisualInfo vis, GLContext shareList, 
                                         bool direct, int layer = 0);

   bool destroyContext(Display dpy, GLContext ctx);

   bool makeCurrent(Display dpy, Drawable drawable, GLContext ctx);

   bool shareContext( Display dpy, GLContext srcCtx, GLContext newCtx );
}

#endif

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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