131 lines
4.1 KiB
C++
131 lines
4.1 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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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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_valid(false),
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_display(0),
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_parent(0),
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_pbuffer(0),
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_visualInfo(0),
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_glxContext(0),
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_initialized(false),
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_realized(false)
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{
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_traits = traits;
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init();
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if (valid())
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{
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setState( new osg::State );
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getState()->setGraphicsContext(this);
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if (_traits.valid() && _traits->sharedContext)
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{
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getState()->setContextID( _traits->sharedContext->getState()->getContextID() );
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incrementContextIDUsageCount( getState()->getContextID() );
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}
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else
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{
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getState()->setContextID( osg::GraphicsContext::createNewContextID() );
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}
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}
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}
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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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Window& getParent() { return _parent; }
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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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Window _parent;
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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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};
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}
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#endif
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