3333ca2b46
pbuffer functions or exactly ask for the extensions we need to call the apropriate glx extension functions for and around pbuffers extensions. The glx 1.3 version of this functios are prefered. If this is not pressent we are looking for the glx extensions and check for them. Prevously we just used some mix of the glx 1.3 functions or the extension functions without making sure that this extension is present. "
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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/* Note, elements of PixelBufferX11 have used Prodcer/RenderSurface_X11.cpp as both
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* a guide to use of X11/GLX and copiying directly in the case of setBorder().
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* These elements are license under OSGPL as above, with Copyright (C) 2001-2004 Don Burns.
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*/
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#ifndef OSGVIEWER_PIXELBUFFERX11
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#define OSGVIEWER_PIXELBUFFERX11 1
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#include <osg/GraphicsContext>
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#include <osgViewer/Export>
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#define GLX_GLXEXT_PROTOTYPES 1
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#include <X11/X.h>
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#include <GL/glx.h>
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#ifndef GLX_VERSION_1_3
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typedef XID GLXPbuffer;
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#endif
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namespace osgViewer
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{
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class OSGVIEWER_EXPORT PixelBufferX11 : public osg::GraphicsContext
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{
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public:
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PixelBufferX11(osg::GraphicsContext::Traits* traits);
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virtual bool isSameKindAs(const Object* object) const { return dynamic_cast<const PixelBufferX11*>(object)!=0; }
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virtual const char* libraryName() const { return "osgViewer"; }
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virtual const char* className() const { return "PixelBufferX11"; }
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virtual bool valid() const { return _valid; }
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/** Realise the GraphicsContext.*/
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virtual bool realizeImplementation();
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/** Return true if the graphics context has been realised and is ready to use.*/
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virtual bool isRealizedImplementation() const { return _realized; }
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/** Close the graphics context.*/
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virtual void closeImplementation();
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/** Make this graphics context current.*/
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virtual bool makeCurrentImplementation();
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/** Make this graphics context current with specified read context implementation. */
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virtual bool makeContextCurrentImplementation(osg::GraphicsContext* readContext);
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/** Release the graphics context.*/
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virtual bool releaseContextImplementation();
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/** Bind the graphics context to associated texture implementation.*/
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virtual void bindPBufferToTextureImplementation(GLenum buffer);
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/** Swap the front and back buffers.*/
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virtual void swapBuffersImplementation();
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public:
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// X11 specific aces functions
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Display* getDisplay() const { return _display; }
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GLXPbuffer& getPbuffer() { return _pbuffer; }
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GLXContext& getGLXContext() { return _glxContext; }
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protected:
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~PixelBufferX11();
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bool createVisualInfo();
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void init();
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bool _valid;
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Display* _display;
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GLXPbuffer _pbuffer;
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XVisualInfo* _visualInfo;
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GLXContext _glxContext;
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bool _initialized;
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bool _realized;
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bool _useGLX1_3;
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};
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}
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#endif
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