objective c - NSBItmapImageRep RGB To PNG -



objective c - NSBItmapImageRep RGB To PNG -

i have bgra image encoded png (or compressed format compared raw bitmap).

is there way 60 times sec little amount of cpu?

right now, have tried using nsbitmapimagerep representationofimagerepsinarray, ends taking ton of cpu.

objective-c osx png nsimage libpng

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