Files
OpenSceneGraph/include/osgViewer/api/X11/PixelBufferX11
Robert Osfield 687e77ddc9 From Andy Skinner, "Someone was using our code on a system that does not seem to have the SGIX symbols used in osgViewer.cpp.
I used osgSetGLExtensionsFuncPtr to remove the symbols.  I don't know how to test this path, but it did remove the symbols from libosgViewer.so.  I have also not been able yet to see if that was sufficient for our customer.

 

I did this by looking at other cases, and I tried to follow some of the same practices in PixelBufferX11, like using _useSGIX in a similar way to the previous _useGLX1_3."


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15041 16af8721-9629-0410-8352-f15c8da7e697
2015-08-03 19:14:09 +00:00

102 lines
3.7 KiB
C++

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
/* Note, elements of PixelBufferX11 have used Prodcer/RenderSurface_X11.cpp as both
* a guide to use of X11/GLX and copiying directly in the case of setBorder().
* These elements are license under OSGPL as above, with Copyright (C) 2001-2004 Don Burns.
*/
#ifndef OSGVIEWER_PIXELBUFFERX11
#define OSGVIEWER_PIXELBUFFERX11 1
#include <osg/GraphicsContext>
#include <osgViewer/api/X11/GraphicsHandleX11>
namespace osgViewer
{
class OSGVIEWER_EXPORT PixelBufferX11 : public osg::GraphicsContext, public osgViewer::GraphicsHandleX11
{
public:
PixelBufferX11(osg::GraphicsContext::Traits* traits);
virtual bool isSameKindAs(const Object* object) const { return dynamic_cast<const PixelBufferX11*>(object)!=0; }
virtual const char* libraryName() const { return "osgViewer"; }
virtual const char* className() const { return "PixelBufferX11"; }
virtual bool valid() const { return _valid; }
/** Realise the GraphicsContext.*/
virtual bool realizeImplementation();
/** Return true if the graphics context has been realised and is ready to use.*/
virtual bool isRealizedImplementation() const { return _realized; }
/** Close the graphics context.*/
virtual void closeImplementation();
/** Make this graphics context current.*/
virtual bool makeCurrentImplementation();
/** Make this graphics context current with specified read context implementation. */
virtual bool makeContextCurrentImplementation(osg::GraphicsContext* readContext);
/** Release the graphics context.*/
virtual bool releaseContextImplementation();
/** Bind the graphics context to associated texture implementation.*/
virtual void bindPBufferToTextureImplementation(GLenum buffer);
/** Swap the front and back buffers.*/
virtual void swapBuffersImplementation();
public:
// X11 specific aces functions
Pbuffer& getPbuffer() { return _pbuffer; }
protected:
~PixelBufferX11();
bool createVisualInfo();
void init();
bool _valid;
Pbuffer _pbuffer;
XVisualInfo* _visualInfo;
bool _initialized;
bool _realized;
bool _useGLX1_3;
bool _useSGIX;
typedef Pbuffer ( *GLXCreateGLXPbufferSGIX_FuncPtr) (Display *dpy, GLXFBConfig config, unsigned int, unsigned height, int* attrib_list);
typedef void ( *GLXDestroyGLXPbufferSGIX_FuncPtr) (Display *dpy, Pbuffer pbuf);
typedef int ( *GLXQueryGLXPbufferSGIX_FuncCPtr) (Display *dpy, Pbuffer pbuf, int attribute, unsigned int *value);
typedef GLXFBConfig ( *GLXGetFBConfigFromVisualSGIX_FuncPtr) (Display *dpy, XVisualInfo *vis);
GLXCreateGLXPbufferSGIX_FuncPtr _glXCreateGLXPbufferSGIX;
GLXDestroyGLXPbufferSGIX_FuncPtr _glXDestroyGLXPbufferSGIX;
GLXQueryGLXPbufferSGIX_FuncCPtr _glXQueryGLXPbufferSGIX;
GLXGetFBConfigFromVisualSGIX_FuncPtr _glXGetFBConfigFromVisualSGIX;
};
}
#endif