SoDeviceContext Class Reference

Abstract base class for device context managment More...

#include <Inventor/devices/SoDeviceContext.h>

Inheritance diagram for SoDeviceContext:

Public Member Functions
	SoDeviceContext ()
	Default constructor.
virtual void	bind ()=0
	Bind this context to the current thread.
virtual void	unbind ()=0
	Unbind this context from the current thread.
virtual bool	isCompatible (SoDeviceContext *) const =0
	Returns true if two contexts are compatible.
virtual bool	isCurrent () const =0
	Returns true if the context is valid and currently active.
void	setSharable (bool sharable)
	Sets the sharable property.
bool	isSharable () const
	Returns the sharable status of this context.
virtual bool	setSharedWith (SoDeviceContext *sourceCtx)
	Share this context.
virtual bool	isSharedWith (const SoDeviceContext *context) const
	Returns the current sharing state with passed context.
virtual int	getSharedId () const
	Returns an id common to all compatible/shared contexts.
SoDeviceContextSharedGroup *	getSharedGroup () const
	Returns the current shared group.
bool	setSharedGroup (SoDeviceContextSharedGroup *sharedGroup)
	Explicitly change the sharedGroup.
virtual bool	isValid () const
	Returns true if this context is valid.
Public Member Functions inherited from SoRefCounter
void	ref () const
	Adds a reference to an instance.
void	unref () const
	Removes a reference from an instance.
void	unrefNoDelete () const
	unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.
int	getRefCount () const
	Returns current reference count.
void	lock () const
	lock this instance.
void	unlock () const
	unlock this instance.

Friends
class	SoGLContext_qtcontext_OIV_875_Stub

Detailed Description

Abstract base class for device context managment

This class provides generic functions to manage or get data about specific device contexts.

Reference counting:

• If a device context is bound when a corresponding device buffer object is created, the buffer object will ref() the context (and unref() it when the buffer object is destroyed).

Definition at line 61 of file SoDeviceContext.h.

Constructor & Destructor Documentation

SoDeviceContext()

SoDeviceContext::SoDeviceContext

(

)

Default constructor.

Member Function Documentation

bind()

virtual void SoDeviceContext::bind ( )

pure virtual

Bind this context to the current thread.

Implemented in SoCpuContext, and SoGLContext.

getSharedGroup()

SoDeviceContextSharedGroup * SoDeviceContext::getSharedGroup

(

)

const

Returns the current shared group.

getSharedId()

virtual int SoDeviceContext::getSharedId ( ) const

virtual

Returns an id common to all compatible/shared contexts.

isCompatible()

virtual bool SoDeviceContext::isCompatible ( SoDeviceContext *  ) const

pure virtual

Returns true if two contexts are compatible.

Compatible means that using a buffer from one of these contexts inside the other will not require copying the data.

Implemented in SoCpuContext, and SoGLContext.

isCurrent()

virtual bool SoDeviceContext::isCurrent ( ) const

pure virtual

Returns true if the context is valid and currently active.

Implemented in SoCpuContext, and SoGLContext.

isSharable()

bool SoDeviceContext::isSharable

(

)

const

Returns the sharable status of this context.

By default, a context is sharable.

isSharedWith()

virtual bool SoDeviceContext::isSharedWith ( const SoDeviceContext *  context ) const

virtual

Returns the current sharing state with passed context.

Reimplemented in SoGLContext.

isValid()

virtual bool SoDeviceContext::isValid ( ) const

virtual

Returns true if this context is valid.

Returns

true if the context is valid.

Reimplemented in SoGLContext.

setSharable()

void SoDeviceContext::setSharable

(

bool

sharable

)

Sets the sharable property.

setSharedGroup()

bool SoDeviceContext::setSharedGroup

(

SoDeviceContextSharedGroup *

sharedGroup

)

Explicitly change the sharedGroup.

setSharedWith()

virtual bool SoDeviceContext::setSharedWith ( SoDeviceContext *  sourceCtx )

virtual

Share this context.

unbind()

virtual void SoDeviceContext::unbind ( )

pure virtual

Unbind this context from the current thread.

Implemented in SoCpuContext, and SoGLContext.

Friends And Related Symbol Documentation

SoGLContext_qtcontext_OIV_875_Stub

friend class SoGLContext_qtcontext_OIV_875_Stub

friend

Definition at line 148 of file SoDeviceContext.h.

---

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

• Inventor/devices/SoDeviceContext.h