https://bugs.freedesktop.org/show_bug.cgi?id=54877 --- Comment #4 from Alex Deucher <agd5f@xxxxxxxxx> 2012-09-14 13:47:19 UTC --- (In reply to comment #3) > (In reply to comment #2) > > Created attachment 67121 [details] [review] [review] > > fix > > > > This fixes it. I need to find out how the quant mode affects the range of > > values. > > My guess is that QUANT_MODE determines the position of fixed point for internal > calculations in hw. Quantization precision 1/4096 means 12 bits, and it looks > like we have 11 bits before the point in that case, with 23 bits total. So if > we need to increase the range, we have to move the point lowering the > precision. > > I've tried 1/256 and other values on evergreen for initial implementation of > that patch in hope that it'll be enough, but IIRC 1/4096 fixed more tests > (though possibly some test results were simply random). If some tests are > really failing due to lower precision, I guess we might want to adjust > QUANT_MODE dynamically. That makes sense. The hw worked similarly on r300-r500. We should adjust the mode based on the size of the buffer I suppose. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
