osg::GraphicsContext Class Reference

#include <GraphicsContext.h>

Inheritance diagram for osg::GraphicsContext:

Collaboration diagram for osg::GraphicsContext:

Classes
struct	ResizedCallback
struct	ScreenIdentifier
struct	ScreenSettings
struct	SwapCallback
struct	Traits
struct	WindowingSystemInterface

Public Types
typedef std::vector < ScreenSettings >	ScreenSettingsList
typedef std::vector < GraphicsContext * >	GraphicsContexts
typedef std::list< ref_ptr < Operation > >	GraphicsOperationQueue
typedef std::list< osg::Camera * >	Cameras
Public Types inherited from osg::Object
enum	DataVariance { DYNAMIC, STATIC, UNSPECIFIED }

Public Member Functions
void	add (Operation *operation)
void	remove (Operation *operation)
void	remove (const std::string &name)
void	removeAllOperations ()
virtual void	runOperations ()
GraphicsOperationQueue &	getOperationsQueue ()
OpenThreads::Mutex *	getOperationsMutex ()
osg::RefBlock *	getOperationsBlock ()
Operation *	getCurrentOperation ()
const Traits *	getTraits () const
virtual bool	valid () const =0
void	setState (State *state)
State *	getState ()
const State *	getState () const
void	setClearColor (const Vec4 &color)
const Vec4 &	getClearColor () const
void	setClearMask (GLbitfield mask)
GLbitfield	getClearMask () const
virtual void	clear ()
double	getTimeSinceLastClear () const
bool	realize ()
void	close (bool callCloseImplementation=true)
void	swapBuffers ()
bool	isRealized () const
bool	makeCurrent ()
bool	makeContextCurrent (GraphicsContext *readContext)
bool	releaseContext ()
bool	isCurrent () const
void	bindPBufferToTexture (GLenum buffer)
void	createGraphicsThread ()
void	setGraphicsThread (GraphicsThread *gt)
GraphicsThread *	getGraphicsThread ()
const GraphicsThread *	getGraphicsThread () const
virtual bool	realizeImplementation ()=0
virtual bool	isRealizedImplementation () const =0
virtual void	closeImplementation ()=0
virtual bool	makeCurrentImplementation ()=0
virtual bool	makeContextCurrentImplementation (GraphicsContext *readContext)=0
virtual bool	releaseContextImplementation ()=0
virtual void	bindPBufferToTextureImplementation (GLenum buffer)=0
void	setSwapCallback (SwapCallback *rc)
SwapCallback *	getSwapCallback ()
const SwapCallback *	getSwapCallback () const
void	swapBuffersCallbackOrImplemenation ()
virtual void	swapBuffersImplementation ()=0
void	resized (int x, int y, int width, int height)
void	setResizedCallback (ResizedCallback *rc)
ResizedCallback *	getResizedCallback ()
const ResizedCallback *	getResizedCallback () const
virtual void	resizedImplementation (int x, int y, int width, int height)
Cameras &	getCameras ()
const Cameras &	getCameras () const
void	setDefaultFboId (GLuint i)
GLuint	getDefaultFboId () const
virtual bool	isSameKindAs (const Object *object) const
virtual const char *	libraryName () const
virtual const char *	className () const
Public Member Functions inherited from osg::Object
	Object ()
	Object (bool threadSafeRefUnref)
	Object (const Object &, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
std::string	getCompoundClassName () const
virtual Node *	asNode ()
virtual const Node *	asNode () const
virtual NodeVisitor *	asNodeVisitor ()
virtual const NodeVisitor *	asNodeVisitor () const
virtual StateAttribute *	asStateAttribute ()
virtual const StateAttribute *	asStateAttribute () const
virtual Uniform *	asUniform ()
virtual const Uniform *	asUniform () const
virtual void	setThreadSafeRefUnref (bool threadSafe)
virtual void	setName (const std::string &name)
void	setName (const char *name)
const std::string &	getName () const
void	setDataVariance (DataVariance dv)
DataVariance	getDataVariance () const
virtual void	computeDataVariance ()
void	setUserDataContainer (osg::UserDataContainer *udc)
osg::UserDataContainer *	getUserDataContainer ()
const osg::UserDataContainer *	getUserDataContainer () const
osg::UserDataContainer *	getOrCreateUserDataContainer ()
virtual void	setUserData (Referenced *obj)
virtual Referenced *	getUserData ()
virtual const Referenced *	getUserData () const
template<typename T >
bool	getUserValue (const std::string &name, T &value) const
template<typename T >
void	setUserValue (const std::string &name, const T &value)
virtual void	resizeGLObjectBuffers (unsigned int)
virtual void	releaseGLObjects (osg::State *=0) const
template<typename T >
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool	getUserValue (const std::string &name, T &value) const
Public Member Functions inherited from osg::Referenced
	Referenced ()
	Referenced (bool threadSafeRefUnref)
	Referenced (const Referenced &)
Referenced &	operator= (const Referenced &)
bool	getThreadSafeRefUnref () const
OpenThreads::Mutex *	getRefMutex () const
int	ref () const
int	unref () const
int	unref_nodelete () const
int	referenceCount () const
ObserverSet *	getObserverSet () const
ObserverSet *	getOrCreateObserverSet () const
void	addObserver (Observer *observer) const
void	removeObserver (Observer *observer) const

Static Public Member Functions
static void	setWindowingSystemInterface (WindowingSystemInterface *wsInterface)
static WindowingSystemInterface *	getWindowingSystemInterface ()
static GraphicsContext *	createGraphicsContext (Traits *traits)
static unsigned int	createNewContextID ()
static unsigned int	getMaxContextID ()
static void	incrementContextIDUsageCount (unsigned int contextID)
static void	decrementContextIDUsageCount (unsigned int contextID)
static GraphicsContexts	getAllRegisteredGraphicsContexts ()
static GraphicsContexts	getRegisteredGraphicsContexts (unsigned int contextID)
static void	setCompileContext (unsigned int contextID, GraphicsContext *gc)
static GraphicsContext *	getOrCreateCompileContext (unsigned int contextID)
static GraphicsContext *	getCompileContext (unsigned int contextID)
Static Public Member Functions inherited from osg::Referenced
static OpenThreads::Mutex *	getGlobalReferencedMutex ()
static void	setThreadSafeReferenceCounting (bool enableThreadSafeReferenceCounting)
static bool	getThreadSafeReferenceCounting ()
static void	setDeleteHandler (DeleteHandler *handler)
static DeleteHandler *	getDeleteHandler ()

Protected Member Functions
	GraphicsContext ()
	GraphicsContext (const GraphicsContext &, const osg::CopyOp &)
virtual	~GraphicsContext ()
virtual Object *	cloneType () const
virtual Object *	clone (const CopyOp &) const
void	addCamera (osg::Camera *camera)
void	removeCamera (osg::Camera *camera)
Protected Member Functions inherited from osg::Object
virtual	~Object ()
Protected Member Functions inherited from osg::Referenced
virtual	~Referenced ()
void	signalObserversAndDelete (bool signalDelete, bool doDelete) const
void	deleteUsingDeleteHandler () const

Static Protected Member Functions
static void	registerGraphicsContext (GraphicsContext *gc)
static void	unregisterGraphicsContext (GraphicsContext *gc)

Protected Attributes
Cameras	_cameras
ref_ptr< Traits >	_traits
ref_ptr< State >	_state
Vec4	_clearColor
GLbitfield	_clearMask
OpenThreads::Thread *	_threadOfLastMakeCurrent
OpenThreads::Mutex	_operationsMutex
osg::ref_ptr< osg::RefBlock >	_operationsBlock
GraphicsOperationQueue	_operations
osg::ref_ptr< Operation >	_currentOperation
ref_ptr< GraphicsThread >	_graphicsThread
ref_ptr< ResizedCallback >	_resizedCallback
ref_ptr< SwapCallback >	_swapCallback
Timer_t	_lastClearTick
GLuint	_defaultFboId
Protected Attributes inherited from osg::Object
std::string	_name
DataVariance	_dataVariance
osg::UserDataContainer *	_userDataContainer
Protected Attributes inherited from osg::Referenced
OpenThreads::AtomicPtr	_observerSet
OpenThreads::Atomic	_refCount

Friends
class	osg::Camera

Detailed Description

Base class for providing Windowing API agnostic access to creating and managing graphics context.

Definition at line 29 of file GraphicsContext.h.

Member Typedef Documentation

typedef std::list< osg::Camera* > osg::GraphicsContext::Cameras

Definition at line 468 of file GraphicsContext.h.

typedef std::vector<GraphicsContext*> osg::GraphicsContext::GraphicsContexts

Definition at line 239 of file GraphicsContext.h.

typedef std::list< ref_ptr<Operation> > osg::GraphicsContext::GraphicsOperationQueue

Definition at line 273 of file GraphicsContext.h.

typedef std::vector<ScreenSettings> osg::GraphicsContext::ScreenSettingsList

Definition at line 166 of file GraphicsContext.h.

Constructor & Destructor Documentation

osg::GraphicsContext::GraphicsContext ( )

protected

osg::GraphicsContext::GraphicsContext ( const GraphicsContext &  , const osg::CopyOp &    )

protected

virtual osg::GraphicsContext::~GraphicsContext ( )

protectedvirtual

Member Function Documentation

void osg::GraphicsContext::add

(

Operation *

operation

)

Add operation to end of OperationQueue.

void osg::GraphicsContext::addCamera ( osg::Camera *  camera )

protected

void osg::GraphicsContext::bindPBufferToTexture ( GLenum  buffer )

inline

Bind the graphics context to associated texture.

Definition at line 363 of file GraphicsContext.h.

virtual void osg::GraphicsContext::bindPBufferToTextureImplementation ( GLenum  buffer )

pure virtual

Pure virtual, Bind the graphics context to associated texture implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindow, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

virtual const char* osg::GraphicsContext::className ( ) const

inlinevirtual

return the name of the object's class type. Must be defined by derived classes.

Implements osg::Object.

Reimplemented in osgViewer::GraphicsWindowEmbedded, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

Definition at line 485 of file GraphicsContext.h.

virtual void osg::GraphicsContext::clear ( )

virtual

Do an OpenGL clear of the full graphics context/window. Note, must only be called from a thread with this context current.

virtual Object* osg::GraphicsContext::clone ( const CopyOp &  ) const

inlineprotectedvirtual

Clone an object, with Object* return type. Must be defined by derived classes.

Implements osg::Object.

Definition at line 495 of file GraphicsContext.h.

virtual Object* osg::GraphicsContext::cloneType ( ) const

inlineprotectedvirtual

Clone the type of an object, with Object* return type. Must be defined by derived classes.

Implements osg::Object.

Definition at line 494 of file GraphicsContext.h.

void osg::GraphicsContext::close

(

bool

callCloseImplementation = true

)

close the graphics context. close(bool) stops any associated graphics threads, releases the contextID for the GraphicsContext then optional calls closeImplementation() to do the actual deletion of the graphics. This call is made optional as there are times when the graphics context has already been deleted externally and only the OSG side of the its data need to be closed down.

virtual void osg::GraphicsContext::closeImplementation ( )

pure virtual

Close the graphics context implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindowEmbedded, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

static GraphicsContext* osg::GraphicsContext::createGraphicsContext ( Traits *  traits )

static

Create a graphics context for a specified set of traits.

void osg::GraphicsContext::createGraphicsThread

(

)

Create a graphics thread to the graphics context, so that the thread handles all OpenGL operations.

static unsigned int osg::GraphicsContext::createNewContextID ( )

static

Create a contextID for a new graphics context, this contextID is used to set up the osg::State associate with context. Automatically increments the usage count of the contextID to 1.

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static void osg::GraphicsContext::decrementContextIDUsageCount ( unsigned int  contextID )

static

Decrement the usage count associate with a contextID. Once the contextID goes to 0 the contextID is then free to be reused.

static GraphicsContexts osg::GraphicsContext::getAllRegisteredGraphicsContexts ( )

static

Get all the registered graphics contexts.

Cameras& osg::GraphicsContext::getCameras ( )

inline

Get the list of cameras associated with this graphics context.

Definition at line 471 of file GraphicsContext.h.

const Cameras& osg::GraphicsContext::getCameras ( ) const

inline

Get the const list of cameras associated with this graphics context.

Definition at line 474 of file GraphicsContext.h.

const Vec4& osg::GraphicsContext::getClearColor ( ) const

inline

Returns the clear color.

Definition at line 311 of file GraphicsContext.h.

GLbitfield osg::GraphicsContext::getClearMask ( ) const

inline

Get the clear mask.

Definition at line 319 of file GraphicsContext.h.

static GraphicsContext* osg::GraphicsContext::getCompileContext ( unsigned int  contextID )

static

Get the GraphicsContext for doing background compilation for GraphicsContexts associated with specified contextID.

Operation* osg::GraphicsContext::getCurrentOperation ( )

inline

Get the current operations that is being run.

Definition at line 285 of file GraphicsContext.h.

GLuint osg::GraphicsContext::getDefaultFboId ( ) const

inline

Definition at line 479 of file GraphicsContext.h.

GraphicsThread* osg::GraphicsContext::getGraphicsThread ( )

inline

Get the graphics thread assigned the graphics context.

Definition at line 374 of file GraphicsContext.h.

const GraphicsThread* osg::GraphicsContext::getGraphicsThread ( ) const

inline

Get the const graphics thread assigned the graphics context.

Definition at line 377 of file GraphicsContext.h.

static unsigned int osg::GraphicsContext::getMaxContextID ( )

static

Get the current max ContextID.

osg::RefBlock* osg::GraphicsContext::getOperationsBlock ( )

inline

Get the operations queue block used to mark an empty queue, if you end items into the empty queue you must release this block.

Definition at line 282 of file GraphicsContext.h.

OpenThreads::Mutex* osg::GraphicsContext::getOperationsMutex ( )

inline

Get the operations queue mutex.

Definition at line 279 of file GraphicsContext.h.

GraphicsOperationQueue& osg::GraphicsContext::getOperationsQueue ( )

inline

Get the operations queue, note you must use the OperationsMutex when accessing the queue.

Definition at line 276 of file GraphicsContext.h.

static GraphicsContext* osg::GraphicsContext::getOrCreateCompileContext ( unsigned int  contextID )

static

Get existing or create a new GraphicsContext to do background compilation for GraphicsContexts associated with specified contextID.

static GraphicsContexts osg::GraphicsContext::getRegisteredGraphicsContexts ( unsigned int  contextID )

static

Get all the registered graphics contexts associated with a specific contextID.

ResizedCallback* osg::GraphicsContext::getResizedCallback ( )

inline

Get the resized callback which overrides the GraphicsConext::realizedImplementation().

Definition at line 459 of file GraphicsContext.h.

const ResizedCallback* osg::GraphicsContext::getResizedCallback ( ) const

inline

Get the const resized callback which overrides the GraphicsConext::realizedImplementation().

Definition at line 462 of file GraphicsContext.h.

State* osg::GraphicsContext::getState ( )

inline

Get the State object which tracks the current OpenGL state for this graphics context.

Definition at line 301 of file GraphicsContext.h.

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const State* osg::GraphicsContext::getState ( ) const

inline

Get the const State object which tracks the current OpenGL state for this graphics context.

Definition at line 304 of file GraphicsContext.h.

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SwapCallback* osg::GraphicsContext::getSwapCallback ( )

inline

Get the swap callback which overrides the GraphicsContext::swapBuffersImplementation().

Definition at line 419 of file GraphicsContext.h.

const SwapCallback* osg::GraphicsContext::getSwapCallback ( ) const

inline

Get the const swap callback which overrides the GraphicsContext::swapBuffersImplementation().

Definition at line 422 of file GraphicsContext.h.

double osg::GraphicsContext::getTimeSinceLastClear ( ) const

inline

Definition at line 325 of file GraphicsContext.h.

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const Traits* osg::GraphicsContext::getTraits ( ) const

inline

Get the traits of the GraphicsContext.

Definition at line 291 of file GraphicsContext.h.

static WindowingSystemInterface* osg::GraphicsContext::getWindowingSystemInterface ( )

static

Get the WindowingSystemInterface

static void osg::GraphicsContext::incrementContextIDUsageCount ( unsigned int  contextID )

static

Increment the usage count associate with a contextID. The usage count specifies how many graphics contexts a specific contextID is shared between.

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bool osg::GraphicsContext::isCurrent ( ) const

inline

Return true if the current thread has this OpenGL graphics context.

Definition at line 360 of file GraphicsContext.h.

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bool osg::GraphicsContext::isRealized ( ) const

inline

Return true if the graphics context has been realized and is ready to use.

Definition at line 342 of file GraphicsContext.h.

virtual bool osg::GraphicsContext::isRealizedImplementation ( ) const

pure virtual

Return true if the graphics context has been realized, and is ready to use, implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindowEmbedded, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

virtual bool osg::GraphicsContext::isSameKindAs ( const Object *  object ) const

inlinevirtual

Reimplemented from osg::Object.

Definition at line 483 of file GraphicsContext.h.

virtual const char* osg::GraphicsContext::libraryName ( ) const

inlinevirtual

return the name of the object's library. Must be defined by derived classes. The OpenSceneGraph convention is that the namespace of a library is the same as the library name.

Implements osg::Object.

Reimplemented in osgViewer::GraphicsWindowEmbedded, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

Definition at line 484 of file GraphicsContext.h.

bool osg::GraphicsContext::makeContextCurrent

(

GraphicsContext *

readContext

)

Make this graphics context current with specified read context. Implemented by calling makeContextCurrentImplementation(). Returns true on success.

virtual bool osg::GraphicsContext::makeContextCurrentImplementation ( GraphicsContext *  readContext )

pure virtual

Make this graphics context current with specified read context implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::PixelBufferX11.

bool osg::GraphicsContext::makeCurrent

(

)

Make this graphics context current. Implemented by calling makeCurrentImplementation(). Returns true on success.

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virtual bool osg::GraphicsContext::makeCurrentImplementation ( )

pure virtual

Make this graphics context current implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindowEmbedded, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

bool osg::GraphicsContext::realize

(

)

Realize the GraphicsContext.

virtual bool osg::GraphicsContext::realizeImplementation ( )

pure virtual

Realize the GraphicsContext implementation, Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindowEmbedded, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

static void osg::GraphicsContext::registerGraphicsContext ( GraphicsContext *  gc )

staticprotected

Register a GraphicsContext.

bool osg::GraphicsContext::releaseContext

(

)

Release the graphics context. Returns true on success.

virtual bool osg::GraphicsContext::releaseContextImplementation ( )

pure virtual

Release the graphics context implementation.

Implemented in osgViewer::GraphicsWindowEmbedded, osgViewer::GraphicsWindow, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindowX11, osgViewer::PixelBufferWin32, osgViewer::PixelBufferX11, and osgViewer::GraphicsWindowWin32.

void osg::GraphicsContext::remove

(

Operation *

operation

)

Remove operation from OperationQueue.

void osg::GraphicsContext::remove

(

const std::string &

name

)

Remove named operation from OperationQueue.

void osg::GraphicsContext::removeAllOperations

(

)

Remove all operations from OperationQueue.

void osg::GraphicsContext::removeCamera ( osg::Camera *  camera )

protected

void osg::GraphicsContext::resized ( int  x, int  y, int  width, int  height  )

inline

resized method should be called when the underlying window has been resized and the GraphicsWindow and associated Cameras must be updated to keep in sync with the new size.

Definition at line 443 of file GraphicsContext.h.

virtual void osg::GraphicsContext::resizedImplementation ( int  x, int  y, int  width, int  height  )

virtual

resized implementation, by default resizes the viewports and aspect ratios the cameras associated with the graphics Window.

virtual void osg::GraphicsContext::runOperations ( )

virtual

Run the operations.

Reimplemented in osgQt::GraphicsWindowQt.

void osg::GraphicsContext::setClearColor ( const Vec4 &  color )

inline

Sets the clear color.

Definition at line 308 of file GraphicsContext.h.

void osg::GraphicsContext::setClearMask ( GLbitfield  mask )

inline

Set the clear mask used in glClear(..). Defaults to 0 - so no clear is done by default by the GraphicsContext, instead the Cameras attached to the GraphicsContext will do the clear. GraphicsContext::setClearMask() is useful for when the Camera Viewports don't cover the whole context, so the context will fill in the gaps.

Definition at line 316 of file GraphicsContext.h.

static void osg::GraphicsContext::setCompileContext ( unsigned int  contextID, GraphicsContext *  gc  )

static

Get the GraphicsContext for doing background compilation for GraphicsContexts associated with specified contextID.

void osg::GraphicsContext::setDefaultFboId ( GLuint  i )

inline

set the default FBO-id, this id will be used when the rendering-backend is finished with RTT FBOs

Definition at line 477 of file GraphicsContext.h.

void osg::GraphicsContext::setGraphicsThread

(

GraphicsThread *

gt

)

Assign a graphics thread to the graphics context, so that the thread handles all OpenGL operations.

void osg::GraphicsContext::setResizedCallback ( ResizedCallback *  rc )

inline

Set the resized callback which overrides the GraphicsConext::realizedImplementation(), allow developers to provide custom behavior in response to a window being resized.

Definition at line 456 of file GraphicsContext.h.

void osg::GraphicsContext::setState ( State *  state )

inline

Set the State object which tracks the current OpenGL state for this graphics context.

Definition at line 298 of file GraphicsContext.h.

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void osg::GraphicsContext::setSwapCallback ( SwapCallback *  rc )

inline

Set the swap callback which overrides the GraphicsContext::swapBuffersImplementation(), allowing developers to provide custom behavior for swap. The callback must call GraphicsContext::swapBuffersImplementation()

Definition at line 416 of file GraphicsContext.h.

static void osg::GraphicsContext::setWindowingSystemInterface ( WindowingSystemInterface *  wsInterface )

static

Set the query the windowing system for screens and create graphics context - this functor should be supplied by the windows toolkit.

void osg::GraphicsContext::swapBuffers

(

)

swap the front and back buffers.

void osg::GraphicsContext::swapBuffersCallbackOrImplemenation ( )

inline

Convenience method for handling whether to call swapbuffers callback or the standard context swapBuffersImplementation. swapBuffersCallbackOrImplemenation() is called by swapBuffers() and osg::SwapBuffersOperation, end users should normally call swapBuffers() rather than swapBuffersCallbackOrImplemenation().

Definition at line 427 of file GraphicsContext.h.

virtual void osg::GraphicsContext::swapBuffersImplementation ( )

pure virtual

Swap the front and back buffers implementation. Pure virtual - must be implemented by concrete implementations of GraphicsContext.

Implemented in osgViewer::GraphicsWindowEmbedded, osgViewer::GraphicsWindow, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindowX11, osgViewer::PixelBufferX11, osgViewer::PixelBufferWin32, and osgViewer::GraphicsWindowWin32.

static void osg::GraphicsContext::unregisterGraphicsContext ( GraphicsContext *  gc )

staticprotected

Unregister a GraphicsContext.

virtual bool osg::GraphicsContext::valid ( ) const

pure virtual

Return whether a valid and usable GraphicsContext has been created.

Implemented in osgViewer::GraphicsWindowEmbedded, osgQt::GraphicsWindowQt, osgViewer::GraphicsWindow, osgViewer::GraphicsWindowX11, osgViewer::GraphicsWindowWin32, osgViewer::PixelBufferWin32, and osgViewer::PixelBufferX11.

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Friends And Related Function Documentation

friend class osg::Camera

friend

Definition at line 509 of file GraphicsContext.h.

Member Data Documentation

Cameras osg::GraphicsContext::_cameras

protected

Definition at line 507 of file GraphicsContext.h.

Vec4 osg::GraphicsContext::_clearColor

protected

Definition at line 514 of file GraphicsContext.h.

GLbitfield osg::GraphicsContext::_clearMask

protected

Definition at line 515 of file GraphicsContext.h.

osg::ref_ptr<Operation> osg::GraphicsContext::_currentOperation

protected

Definition at line 522 of file GraphicsContext.h.

GLuint osg::GraphicsContext::_defaultFboId

protected

Definition at line 531 of file GraphicsContext.h.

ref_ptr<GraphicsThread> osg::GraphicsContext::_graphicsThread

protected

Definition at line 524 of file GraphicsContext.h.

Timer_t osg::GraphicsContext::_lastClearTick

protected

Definition at line 529 of file GraphicsContext.h.

GraphicsOperationQueue osg::GraphicsContext::_operations

protected

Definition at line 521 of file GraphicsContext.h.

osg::ref_ptr<osg::RefBlock> osg::GraphicsContext::_operationsBlock

protected

Definition at line 520 of file GraphicsContext.h.

OpenThreads::Mutex osg::GraphicsContext::_operationsMutex

protected

Definition at line 519 of file GraphicsContext.h.

ref_ptr<ResizedCallback> osg::GraphicsContext::_resizedCallback

protected

Definition at line 526 of file GraphicsContext.h.

ref_ptr<State> osg::GraphicsContext::_state

protected

Definition at line 512 of file GraphicsContext.h.

ref_ptr<SwapCallback> osg::GraphicsContext::_swapCallback

protected

Definition at line 527 of file GraphicsContext.h.

OpenThreads::Thread* osg::GraphicsContext::_threadOfLastMakeCurrent

protected

Definition at line 517 of file GraphicsContext.h.

ref_ptr<Traits> osg::GraphicsContext::_traits

protected

Definition at line 511 of file GraphicsContext.h.

---

The documentation for this class was generated from the following file:

• osg_head/include/osg/GraphicsContext.h