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IOSurfaceAccelerator - iPhone Development Wiki


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IOSurfaceAccelerator is an object for managing hardware accelerated transfers/scales between IOSurfaces in the IOSurface framework. It is only compatible with surfaces that have k32BGRAPixelFormat or k16LE565PixelFormat. Unlike IOSurface, it is not available on Snow Leopard.


Signature OSReturn IOSurfaceAcceleratorCreate(CFAllocatorRef allocator, int type, IOSurfaceAcceleratorRef *outAccelerator);
Available in 3.0 –
Signature OSReturn IOSurfaceAcceleratorTransferSurface(IOSurfaceAcceleratorRef accelerator, IOSurfaceRef source, IOSurfaceRef dest, CFDictionaryRef, void *);
Available in 3.0 –