[BRLTTY] missing key release events, was Re: brltty5.2 alpine2.11 cursor tracking

[Dave Mielke]

[quoted lines by Nicolas Pitre on 2015/10/07 at 14:28 -0400]

>Yes, problem entirely gone while using that branch.  

Thanks. The changes have now been merged into master.

>BTW, I instrumented the code to see the effect of those PCM efficiency 
>patches I sent you.  Generating 100000000 samples and discarding them 
>from within writePcmData() takes 14 seconds on my PC.  Doing the same 
>with my 2 patches applied brings that down to 9 seconds. I suspect the 
>relative difference would be even bigger on portable devices.

I'm still trying to understand one line in the "division -> shift" change.

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