TSLEGLContextCallbacks Class Reference

Detailed Description

When using tiled buffered layers (see TSLOptionTileBufferedLayers from TSLOptionEnum) in conjunction with a TSLEGLSurface an implementation of this interface must be set on the drawing surface before activating tiled buffered layers. This class is responsible for creating and managing OpenGL contexts used in drawing surface created background threads.

Public Member Functions
virtual void	contextLost (void *context)=0
virtual void *	createContext (TSLEGLSurface *sharedSurface)=0
virtual void	deleteContext (void *context)=0
virtual	~TSLEGLContextCallbacks ()=0

Constructor & Destructor Documentation

~TSLEGLContextCallbacks()

TSLEGLContextCallbacks::~TSLEGLContextCallbacks ( )

inlinepure virtual

Member Function Documentation

contextLost()

virtual void TSLEGLContextCallbacks::contextLost ( void * context )

pure virtual

Called when the drawing surface's primary context has been lost due to a power event. The application should delete the given OpenGL context.

Parameters

context

The context previously returned from createContext to delete

createContext()

virtual void * TSLEGLContextCallbacks::createContext ( TSLEGLSurface * sharedSurface )

pure virtual

Called when the drawing surface needs to create an OpenGL context for a background thread.

If sharedSurface is non-null, the created OpenGL context should be created using the existing OpenGL context for the drawing surface as the share_context parameter to eglCreateContext.

The created context should be returned.

Parameters

sharedSurface

The drawing surface whose OpenGL context should be shared into the created context.

deleteContext()

virtual void TSLEGLContextCallbacks::deleteContext ( void * context )

pure virtual

Called when a context previously returned from createContext should be destroyed.

Parameters

context

The context previously returned from createContext to delete