Justin Frankel personal blog

Retina iMac owners can greatly improve graphics performance of many applications

Hmph! Not sure which one is "correct" there... hmm... If you use kCGImageAlphaPremultipliedFirst for the CGBitmapContext rather than kCGImageAlphaNoneFirst, then it looks closer to the original, maybe. ? Also other caveat: NSBitmapImageRep can't seem to deal with the ARGB format either, so if you use that you need to…
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Systems & PerformanceHardware & Electronics2017

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Feb 3, 2017Retina iMac owners can greatly improve graphics performance of many applications by nom15028

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