On Fri, Mar 23, 2018 at 9:30 AM, Pekka Paalanen <ppaala...@gmail.com> wrote: > On Fri, 23 Mar 2018 08:46:46 -0500 > Matt Hoosier <matt.hoos...@gmail.com> wrote: > >> I am very much in favor of the overall approach on this patch series. >> I've experienced every single one of the problems described in this >> summary, and my company currently resorts to maintaining a hacky >> out-of-tree calibration tool to paper over these problems. > > Hi Matt, > > that is very heartwarming to hear. Is your tool specifically for Weston > too?
Yes and no. It's not phrased as a patch against the Weston source code, but it uses heuristics for determining which output the raw /dev/input/* events should be correlated against, and those heuristics probably would fail if some different compositor happened to be running. > > I would be very happy if this proposal fits your needs, and certainly > interested in hearing where it falls short. > > > Thanks, > pq > >> On Fri, Mar 23, 2018 at 7:00 AM, Pekka Paalanen <ppaala...@gmail.com> wrote: >> > From: Pekka Paalanen <pekka.paala...@collabora.co.uk> >> > >> > Hi all, >> > >> > the existing touchscreen calibrator in Weston has several problems. This >> > proposal intends to solve them all by introducing a new protocol >> > extension for touchscreen calibration and a new calibrator tool. >> > >> > The benefits of the new tool, which the old tool lacks, are: >> > >> > - You can unambiguously pick a physical touch device to calibrate. >> > >> > - You can be sure your touch events come only from that particular >> > device, and that you cannot miss touch events even if the current >> > calibration is horribly wrong. >> > >> > - You can be sure the calibration window (pattern) is shown on the right >> > output with the right coordinates. >> > >> > - You can unambiguously calibrate even multiple touchscreens that are >> > all cloned (showing the same image). >> > >> > - You get a libinput style calibation matrix instead of the >> > WL_CALIBRATION format which depends on output resolution. >> > >> > - You can load a new calibration into the compositor without playing >> > tricks with udev or restarting the compositor. >> > >> > There is more discussion about the topic at: >> > https://phabricator.freedesktop.org/T7868 >> > >> > This patch series depends on the clone mode series: >> > https://patchwork.freedesktop.org/series/32898/ >> > >> > There is a full branch available at: >> > https://gitlab.collabora.com/pq/weston/commits/touchcalib-1 > _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel
