The time spent loading EGL and GLES libraries from disk can be a
considerable hit in some embedded use cases. If Weston is compiled
with EGL support, the binary will depend on those libraries, even if
a software renderer is in use.
This patch splits the GL renderer into a separate loadable module,
and moves the dependency on EGL and GLES to it. The backends still
need the EGL headers for the native types and EGLint. The function
load_module() is renamed to weston_load_module() and exported, so
that it can be used by the backends.
The gl renderer interface is changed so that there is only one symbol
that needs to be dlsym()'d. This symbol contains pointers to all the
functions and data necessary to interact with the renderer. As a side
effect, this change simplifies gl-renderer.h a great deal.
This patch implements the notification of clients during mode_switch.
As discussed on IRC, clients are notified of mode_switch only when the
"native" mode is changed and activated. That means that if the native
mode is changed and the compositor had activated a temporary mode for
a fullscreen surface, the clients will be notified only when the native
mode is restored.
The scaling factor is treated the same way as modes.
AC_USE_SYSTEM_EXTENSIONS enables _XOPEN_SOURCE, _GNU_SOURCE and similar
macros to expose the largest extent of functionality supported by the
underlying system. This is required since these macros are often
limiting rather than merely additive, e.g. _XOPEN_SOURCE will actually
on some systems hide declarations which are not part of the X/Open spec.
Since this goes into config.h rather than the command line, ensure all
source is consistently including config.h before anything else,
including system libraries. This doesn't need to be guarded by a
HAVE_CONFIG_H ifdef, which was only ever a hangover from the X.Org
modular transition.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
[pq: rebased and converted more files]
We changed the protocol to always list modes in physical pixel
units (not scaled). And we removed the scaled mode flag. This
just updates the DRM and X11 compositors and the gl and pixman renderers
to handle this.
Default output scale of 256 makes little sense. Actually this is a type
mismatch between wl_fixed and int, probably a leftover from when the
scale factor was proposed as a fixed point number.
Scale 256 probably causes the Window creation to fail, but that actually
leads to a segfault in Mesa libEGL later:
Program received signal SIGSEGV, Segmentation fault.
0 dri2_create_window_surface (drv=0x645060, disp=0x646610, conf=<optimized out>, window=<optimized out>, attrib_list=<optimized out>)
at platform_x11.c:291
291 surf->SwapInterval = 1;
Here 'surf' is NULL.
1 0x00007ffff76c0709 in eglCreateWindowSurface (dpy=0x646610, config=<optimized out>, window=58720261, attrib_list=0x0) at eglapi.c:534
2 0x0000000000421549 in gl_renderer_output_create (output=0x673ae0, window=58720261) at gl-renderer.c:1661
3 0x00007ffff41c456b in x11_compositor_create_output (c=0x6388b0, x=0, y=0, width=1024, height=640, fullscreen=0, no_input=0,
configured_name=0x0, transform=0, scale=256) at compositor-x11.c:928
4 0x00007ffff41c5ca0 in x11_compositor_create (display=0x631950, fullscreen=0, no_input=0, use_pixman=0, argc=0x7fffffffda7c,
argv=0x7fffffffdd18, config_fd=14) at compositor-x11.c:1596
5 0x00007ffff41c63db in backend_init (display=0x631950, argc=0x7fffffffda7c, argv=0x7fffffffdd18, config_fd=14) at compositor-x11.c:1746
6 0x000000000040fcb7 in main (argc=1, argv=0x7fffffffdd18) at compositor.c:3293
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Cc: Alexander Larsson <alexl@redhat.com>
If you specify e.g. scale=2 in weston.ini an output section for the
X11 backend we automatically upscale all normal surfaces by this
amount. Additionally we respect a buffer_scale set on the buffer to
mean that the buffer is already in a scaled form.
This works with both the gl and the pixman renderer. The non-X
backends compile and work, but don't support changing the output
scale (they do downscale as needed due to buffer_scale though).
This also sends the new "scale" and "done" events on wl_output,
making clients aware of the scale.
This set of changes adds support for searching for a given config file
in the directories listed in $XDG_CONFIG_DIRS if it wasn't found in
$XDG_CONFIG_HOME or ~/.config. This allows packages to install custom
config files in /etc/xdg/weston, for example, thus allowing them to
avoid dealing with home directories.
To avoid a TOCTOU race the config file is actually open()ed during the
search. Its file descriptor is returned and stored in the compositor
for later use when performing subsequent config file parses.
Signed-off-by: Ossama Othman <ossama.othman@intel.com>
Most backends relies on gettimeofday(2) for output repaint timestamps
but this is not a requirement. Before this patch repaints coming from
idle_repaint() always used gettimeofday(2) for timestamps. For backends
not using that time source this could cause large jumps between
timestamps.
To fix this, timestamps needs to always come from the backend. This
means that the backend needs to always be responsible of starting the
repaint loop in case that the repaint cannot start immediately.
The drm backend implementation is from the patch by Ander Conselvan de
Oliveira found here:
http://lists.freedesktop.org/archives/wayland-devel/2013-February/007393.html
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
If the window manager doesn't support _NET_WM_STATE_FULLSCREEN, the
fullscreen protocol won't work and we end up waiting indefintely for a
confiure event that doesn't come.
Only try to fullscreen if we have _NET_WM_STATE_FULLSCREEN, and only
wait for map if we're fullscreen.
https://bugs.freedesktop.org/show_bug.cgi?id=61133
Some window managers (kwin at least) don't give us our final fullscreen
size before map_notify. Currently we stop waiting for configire_notify
once we get mapped and in case of kwin that means we don't receive our
fullscreen size configure_notify. With this patch, if we don't get a
configure_notify before map_notify, we just wait for the first one after
map_notify and hope that's our size.
https://bugs.freedesktop.org/show_bug.cgi?id=60608
Before, cairo-util.h would combine pixman and cairo includes. X11 and
Wayland compositors uses this to load an image as a pixman_image_t but are
forced to include cairo headers. Clients use load_cairo_surface to
load images as cairo_surface_t's, but are forced to include pixman.h.
We move the load_image pixman prototype to its own header, so compositors
can get at the pixman prototype without including cairo.h and clients
can include the cairo based function without including pixman.h.
The X11 backend uses a shadow buffer to be able to support transformed
outputs. However, this belongs in the renderer, since otherwise this
code would have to be copied into every backend that uses the pixman
renderer and supports transformed outputs.
When --use-shm is passed to weston and x11 backend is active,
it will use SHM surfaces with pixman renderer instead of EGL
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Fix the following build warnings, and the build failures due to the
warning fixes:
CC libshared_cairo_la-image-loader.lo
image-loader.c:369:1: warning: no previous prototype for 'load_image'
CC x11_backend_la-compositor-x11.lo
compositor-x11.c: In function 'x11_output_set_icon':
compositor-x11.c:396:2: warning: implicit declaration of function 'load_image'
compositor-x11.c:396:8: warning: assignment makes pointer from integer without a cast
CC wayland_backend_la-compositor-wayland.lo
compositor-wayland.c: In function 'create_border':
compositor-wayland.c:97:2: warning: implicit declaration of function 'load_image'
compositor-wayland.c:97:8: warning: assignment makes pointer from integer without a cast
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Backends may move surfaces to different planes, in which case damage is
generated in the primary plane. This damage is usually passed to the
renderer, but in some cases the backend may decide to not render
anything (that's the case when drm compositor scans out a client
buffer). In that case the damage on the primary plane would be
discarded, leading to artifacts later.
This patch makes the backend's responsibility to clear the damage on
the primary plane, so that unrendered damage is kept for as long as
necessary.
This moves the EGLConfig, EGLContext and EGLDisplay fields into
gles2-renderer. It also moves EGLDisplay creation and EGLConfig
selection into gles2-renderer.
This introduces callbacks for output creation and destruction for the
gles2-renderer. This enables the gles2-renderer to have per-output
state. EGL surface creation is now done by the output_create callback
and the EGL surface is stored in the new per-output gles2-renderer
state. On the first output_create call, the gles2-renderer will setup
it's GL context. This is because EGL requires a EGL surface to be able
to use the GL context.
The old implementation didn't work because we set the minimum and maximum
sizes so that the WM can't resize us. That makes the fullscreen protocol
not work. Additionally we were requesting fullscreen after mapping, which
requires the more complicated (and potentially flickery) client message
approach.
Now we just set the _NET_WM_STATE before mapping and avoid setting
the size hints in case of fullscreen. That's all good, but the problem
is that we now have to wait for configure notify before we know
what size our output will be. For now we just block and pull events from
X until we get the size.
Ideally we would treat the map as an output hotplug event and just add the
output at that point, but we can't start up with no outputs present.
That may be worth fixing, but for now, the block-on-map is fine.
In order to use XKB capabilities (as we do), the client must issue an
XkbUseExtension request:
http://www.x.org/releases/current/doc/kbproto/xkbproto.html#Initializing_the_X_Keyboard_Extension
The reason this succeeds currently is that XOpenDisplay from Xlib does
this for us. But it is better not to rely on that, but do it explicitly
in XCB with the rest of the XKB init sequence.
Signed-off-by: Ran Benita <ran234@gmail.com>
Where we don't look at the error details, pass NULL to the 'error'
argument and test using the reply return value instead.
Where we do need it, remember to free it.
Signed-off-by: Ran Benita <ran234@gmail.com>
In order to use xcb_request_check(), given a request without a reply,
you need to use the _checked() variant of the request function.
See xcb-requests(3).
Signed-off-by: Ran Benita <ran234@gmail.com>
Ander Conselvan de Oliveira
Hardening
Andrew Wedgbury
Peter Hutterer
Rob Bradford
Kristian Høgsberg
Daniel Stone
Alexander Larsson
Pekka Paalanen
Ossama Othman
Jonas Ådahl
Vasily Khoruzhick
Pekka Paalanen
John Kåre Alsaker
Ran Benita