On 23/05/17 10:37 PM, Harry Wentland wrote: > On 2017-05-20 04:13 AM, Christian König wrote: >> Am 19.05.2017 um 22:28 schrieb Harry Wentland: >>> >>> I realize this is raising a lot of concern. I was concerned myself >>> when I first saw this. Beside calling kernel_fpu_begin() and >>> kernel_fpu_end() are there other things to watch out for? >> >> Yeah, especially setting "-msse" is rather questionable. As far as I >> know on 64bit systems it is the default, but on 32bit systems that >> could silently break some assumptions. >> >> Additional to that as far as I know "-msse" is just for optimization >> and that isn't performance critical code, so why exactly do we need it? > > Once we enable multi-plane code this code becomes performance critical > as I believe it gets executed when resizing an underlay surface, such as > a video player. That should still only happen once per frame though, i.e. on the order of 10s to 100s of times per second. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
