weston

Pekka Paalanen b502654b9f compositor: Implement JSON-timeline logging 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 <pekka.paalanen@collabora.co.uk>		10 years ago
clients	clients: support ivi-application.xml for clients/window.c	10 years ago
data	data: add reference image files for weston-ivi-shell-user-interface	10 years ago
desktop-shell	compositor: Implement JSON-timeline logging	10 years ago
fullscreen-shell	compositor: Refactor weston_output_mode_switch()	10 years ago
ivi-shell	ivi-shell: reference implementation of input panel for ivi-shell	10 years ago
m4	weston-build: Fix aclocal error during autogen.sh	11 years ago
man	man: explain idle-time=0 in weston.ini	10 years ago
protocol	protocol: ivi hmi controller protocol to set up IVI style UI	10 years ago
shared	cairo-util: fix shadows for small clients	10 years ago
src	compositor: Implement JSON-timeline logging	10 years ago
tests	tests: Use one shared xzalloc implementation	10 years ago
wcap	wcap: Check for mmap and malloc return value in wcap decode module	11 years ago
xwayland	xwayland: fix fullscreening	10 years ago
.gitignore	clients: a reference implementation of UI client how to use ivi-hmi-controller.	10 years ago
COPYING	Add COPYING	13 years ago
Makefile.am	compositor: Implement JSON-timeline logging	10 years ago
README	README: Fix typo; add link to testing docs	11 years ago
autogen.sh	Update autotools configuration	14 years ago
configure.ac	ivi-shell: add IVI layout APIs	10 years ago
notes.txt	Add informal notes file	12 years ago
releasing.txt	releasing: update web host name	10 years ago
weston.ini.in	libinput: Add tap configuration to weston.ini	10 years ago

README

Weston

Weston is the reference implementation of a Wayland compositor, and a
useful compositor in its own right.  Weston has various backends that
lets it run on Linux kernel modesetting and evdev input as well as
under X11.  Weston ships with a few example clients, from simple
clients that demonstrate certain aspects of the protocol to more
complete clients and a simplistic toolkit.  There is also a quite
capable terminal emulator (weston-terminal) and an toy/example desktop
shell.  Finally, weston also provides integration with the Xorg server
and can pull X clients into the Wayland desktop and act as a X window
manager.

Refer to http://wayland.freedesktop.org/building.html for building
weston and its dependencies.

The test suite can be invoked via `make check`; see
http://wayland.freedesktop.org/testing.html for additional details.