On 2018-10-03 4:22 p.m., Carsten Behling wrote: > >> TearFree uses separate dedicated scanout buffers, to which the "main" >> buffer contents are copied on demand. >> >> Originally, these three things (DRI page flipping, rotation and >> TearFree) were separate and mutually exclusive. However, the >> amdgpu/radeon drivers support all of them the same time these days; this >> still requires an extra copy in some cases, but that could be eliminated >> at least in the non-rotated DRI page flipping case. >> >> https://gitlab.freedesktop.org/xorg/xserver/merge_requests/24 has the >> start of TearFree support for the modesetting driver, but it's still >> mutually exclusive with rotation (DRI3 page flipping should work with >> TearFree, but may still exhibit tearing if the client/user disables >> sync-to-vblank). > > Couldn't we extend modesetting in addition to Martin's TearFree patch the > same way you did here for Radeon?: > > https://cgit.freedesktop.org/xorg/driver/xf86-video-ati/commit/?id=798c4fd16d339b1ad5fd729cc884be084c60e38b
Yeah, something like that would be needed. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: https://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s