Optimize getImageData() #549
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Mostly for fully transparent pixels
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LGTM, thanks! Could you just add a comment in code why the need for 2 branches. |
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Done! |
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I've added an optimization of
getImageCanvas()method for fully transparent and fully opaque pixels (typical situation). It speedupsgetImageData(0,0,100,100)test ofbenchmarks/run.js2 - 8 times (different Ubuntu OSs). Moreover, 0/0 division (and the followingNaNcasting toint) for not filled pixels doesn't happen any more.