On 2013-01-28, at 4:28 PM, Siarhei Siamashka wrote: > On Thu, 24 Jan 2013 15:35:24 -0500 > Jeff Muizelaar <[email protected]> wrote: > >> Having 4 or fewer bits means we can do two components at >> a time in a single 32 bit register. >> >> Here are the results for firefox-fishtank on a Pandaboard with >> 4.6.3 and PIXMAN_DISABLE="arm-neon" >> >> Before: >> [ # ] backend test min(s) median(s) stddev. count >> [ 0] image t-firefox-fishtank 7.841 7.910 0.70% 6/6 >> >> After: >> [ # ] backend test min(s) median(s) stddev. count >> [ 0] image t-firefox-fishtank 6.951 6.995 1.11% 6/6 > > That's pretty cool, thanks. I just wonder if you might be also possibly > interested in a 4-bit bilinear scaling for SSE2 backend? It could > provide quite a significant performance improvement.
Yes, definitely interested. We would ship 4-bit precision on desktop if it was noticeably faster. -Jeff _______________________________________________ Pixman mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/pixman
