1. 18 Apr, 2019 1 commit
    • Pekka Paalanen's avatar
      Rename compositor.h to libweston/libweston.h · 3d5d9476
      Pekka Paalanen authored
      The main idea is to make libweston users use the form
      
       #include <libweston/libweston.h>
      
      instead of the plain
      
       #include <compositor.h>
      
      which is prone to name conflicts. This is reflected both in the installed
      files, and the internal header search paths so that Weston would use the exact
      same form as an external project using libweston would.
      
      The public headers are moved under a new top-level directory include/ to make
      them clearly stand out as special (public API).
      Signed-off-by: Pekka Paalanen's avatarPekka Paalanen <pekka.paalanen@collabora.com>
      3d5d9476
  2. 09 Feb, 2018 1 commit
  3. 29 Sep, 2017 1 commit
  4. 23 Jun, 2016 1 commit
  5. 15 Jun, 2015 1 commit
  6. 25 Feb, 2015 1 commit
  7. 08 Dec, 2014 1 commit
    • Pekka Paalanen's avatar
      compositor: Implement JSON-timeline logging · b502654b
      Pekka Paalanen authored
      Logging is activated and deactivated with the debug key binding 't'.
      When activated, it creates a new log file, where it records the events.
      The log file contains events and detailed object information entries in
      JSON format, and is meant to be parsed in sequence from beginning to the
      end.
      
      The emitted events are mostly related to the output repaint cycle, like
      when repaint begins, is submitted to GPU, and when it completes on a
      vblank. This is recorded per-output. Also some per-surface events are
      recorded, including when surface damage is flushed.
      
      To reduce the log size, events refer to objects like outputs and
      surfaces by id numbers. Detailed object information is emitted only as
      needed: on the first object occurrence, and afterwards only if
      weston_timeline_object::force_refresh asks for it.
      
      The detailed information for surfaces includes the string returned by
      weston_surface::get_label. Therefore it is important to set
      weston_timeline_object::force_refresh = 1 whenever the string would
      change, so that the new details get recorded.
      
      A rudimentary parser and SVG generator can be found at:
      https://github.com/ppaalanen/wesgr
      
      The timeline logs can answer questions including:
      - How does the compositor repaint cycle work timing-wise?
      - When was the vblank deadline missed?
      - What is the latency from surface commit to showing the new content on
        screen?
      - How long does it take to process the scenegraph?
      
      v2: weston_surface::get_description renamed to get_label.
      v3: reafctor a bit into fprint_quoted_string().
      Signed-off-by: Pekka Paalanen's avatarPekka Paalanen <pekka.paalanen@collabora.co.uk>
      b502654b