FGFS-4.1/OpenSceneGraph
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Further work on GraphicsContext/GraphicsThread

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This commit is contained in:
Robert Osfield
2005-08-20 08:59:03 +00:00
parent f07b24e56b
commit ac07e07705
10 changed files with 582 additions and 295 deletions
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63
include/osg/GraphicsContext
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@@ -136,13 +136,16 @@ class OSG_EXPORT GraphicsContext : public Referenced
/** Realise the GraphicsContext.*/
virtual bool realize() = 0;
/** Return true if the graphics context has been realised and is ready to use.*/
virtual bool isRealized() const = 0;
bool realize();
/** close the graphics context.*/
virtual void close() = 0;
void close();
/** swap the front and back buffers.*/
void swapBuffers();
/** Return true if the graphics context has been realised and is ready to use.*/
inline bool isRealized() const { return isRealizedImplementation(); }
/** Make this graphics context current.
@@ -159,21 +162,16 @@ class OSG_EXPORT GraphicsContext : public Referenced
/** Return true if the current thread has this OpenGL graphics context.*/
inline bool isCurrent() const { return _threadOfLastMakeCurrent == OpenThreads::Thread::CurrentThread(); }
/** Make this graphics context current.*/
virtual void makeCurrentImplementation() = 0;
/** Make this graphics context current with specified read context.*/
virtual void makeContextCurrentImplementation(GraphicsContext* readContext) = 0;
/** Bind the graphics context to associated texture.*/
virtual void bindPBufferToTexture(GLenum buffer) = 0;
inline void bindPBufferToTexture(GLenum buffer) { bindPBufferToTextureImplementation(buffer); }
/** swap the front and back buffers.*/
virtual void swapBuffers() = 0;
/** Create a graphics thread to the graphics context, so that the thread handles all OpenGL operations.*/
void createGraphicsThread();
/** Assign a graphics thread to the graphics context, so that the thread handles all OpenGL operations.*/
void setGraphicsThread(GraphicsThread* gt) { _graphicsThread = gt; }
void setGraphicsThread(GraphicsThread* gt);
/** Get the graphics thread assigned the graphics context.*/
GraphicsThread* getGraphicsThread() { return _graphicsThread.get(); }
@@ -181,12 +179,45 @@ class OSG_EXPORT GraphicsContext : public Referenced
/** Get the const graphics thread assigned the graphics context.*/
const GraphicsThread* getGraphicsThread() const { return _graphicsThread.get(); }
/** Realise the GraphicsContext implementation,
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual bool realizeImplementation() = 0;
/** Return true if the graphics context has been realised, and is ready to use, implementation.
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual bool isRealizedImplementation() const = 0;
/** Close the graphics context implementation.
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual void closeImplementation() = 0;
/** Make this graphics context current implementation.
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual void makeCurrentImplementation() = 0;
/** Make this graphics context current with specified read context implementation.
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual void makeContextCurrentImplementation(GraphicsContext* readContext) = 0;
/** Pure virtual, Bind the graphics context to associated texture implementation.
* Pure virtual - must be implemented by concrate implementations of GraphicsContext. */
virtual void bindPBufferToTextureImplementation(GLenum buffer) = 0;
/** Swap the front and back buffers implementation.
* Pure virtual - must be implemented by Concrate implementations of GraphicsContext. */
virtual void swapBuffersImplementation() = 0;
protected:
GraphicsContext();
virtual ~GraphicsContext();
bool _closeOnDestruction;
ref_ptr<Traits> _traits;
ref_ptr<State> _state;
OpenThreads::Mutex _mutex;