Implement the basic protocol for sub-surfaces:
- expose wl_subcompositor global interface
- error checking on protocol calls
- associate a parent wl_surface to a sub-surface
- introduce the sub-surface role, which is exclusive
- an implementation of the wl_subsurface interface
- allow nesting of sub-surfaces
- proper surface transformation inheritance from parent to sub-surfaces
- two different modes of wl_surface.commit for sub-surfaces
- hook sub-surfaces up to repaint by modifying the repaint list code
Struct weston_subsurface is dynamically allocated. For sub-surfaces, it
is completely populated.
For parent surfaces, weston_subsurface acts only as a link for stacking
order purposes. The wl_resource is unused, parent_destroy_listener is
not registered, the transform is not linked, etc.
Sub-surfaces are not added directly into layers for display or input.
Instead, they are hooked up via the sub-surface list present in parent
weston_surface. This way sub-surfaces are inherently linked to the
parent surface, and cannot be displayed unless the parent is mapped,
too. This also eases restacking, as only the parent will be in a layer
list. Also, only the main surface should be subject to shell actions.
The surface list rebuilding in weston_output_repaint() is modified to
process sub-surface lists, if they are non-empty. The sub-surface list
always contains the parent, too, unless empty. The collection of
frame_callback_list is moved to a later loop, to streamline the surface
list rebuild functions.
Features still lacking are:
- full-surface alpha support for compound windows
Changes in v2:
- fix a bug in surface mapping: commit a sub-surface would cause the
main surface to never be mapped.
- remove debug printfs
- detect attempt of making a surface its own parent
- always zero-alloc weston_subsurface
- apply wl_subsurface.set_position in commit, not immediately
- add weston_surface_to_subsurface()
- implement sub-surface commit modes parent-cached and independent
- implement wl_subcompositor.destroy and wl_subsurface.destroy
Changes in v3:
- rebased, and use the new transform inheritance code
- squashed the commit "add sub-surfaces to repaint list"
- fixed a buffer reference leak in commit_from_cache()
- Rewrite the sub-surface destructor code, and make it leave the
wl_subsurface protocol object inert, if one destroys the corresponding
wl_surface.
- replaced set_commit_mode with set_sync and set_desync
- allowed sub-surface nesting, and fixed repaint accordingly
- implemented nested sub-surface commit modes
- Made the sub-surface order changes from wl_subsurface.place_above and
.place_below to be applied when the parent surface state is applied,
instead of immediately. This conforms with the protocol specification
now.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Currently the core input code does surface picking before calling into
the focus callback of the current grab. Not all grabs need to pick a
surface however, so we're doing work we don't have to in those cases.
For example, the shell move and resize grabs don't need to pick and the
default grab in implicit grab mode doesn't either.
With this change, the pointer grab mechanism is now very simple:
the focus callback is called whenever the pointer may have a new focus,
the motion callback is called whenever the pointer moves and
the button callback whenever a button is pressed or released.
struct weston_surface is now the only surface type we have (in core, shell.c
has shell_surface, of course). A lot of code gets simpler and we never
have to try to guess whether an API takes a wl_surface or a weston_surface.
We can now update the drag icon position directly from the configure
handler or the grab motion handler, and no longer need
weston_seat_update_drag_surface().
Add input_panel_surface::set_panel to specify input panel surfaces which
are overlaying the application and are following the input cursor.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.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>
This API call handles setting the current surface on the wl_pointer and also
maintaining a destroy notification to monitor that surface for destruction.
This is part of the fix for: https://bugzilla.gnome.org/show_bug.cgi?id=696946
This state is used when the user switches the vt. It turns of rendering
and frame events, but doesn't set the DPMS state to off.
As a part of this change, also turn off the idle timer when entering
the SLEEPING or OFFSCREEN states, which fixes
https://bugs.freedesktop.org/show_bug.cgi?id=61910 (rpi backend
untested).
This patch implements a popup stack. When the first popup is opened
the grab is started, and it is added to a list. Further popups will
be added to this list but the grab won't change. When a popup is
closed it is removed from the list and, if it is now empty, the grab
is ended.
A click outside the client area will send the popup_done event to
all the popups in the list, and the grab will end.
Implements surface transform inheritance. A 'parent' pointer is added to
weston_surface::geometry, and is automatically used by
weston_surface_update_transform(). When updating the transform, the
parent transform is updated as needed, too.
shell_map_popup() is converted to use the new
weston_surface_set_transform_parent() function. Now, if we moved the
popup's parent surface while the popup is open, the popup surface will
stick to the parent properly.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Instead of directly setting the dirty flag on weston_surface geometry,
use a function for that.
This allows us to hook into geometry dirtying in a following patch.
Also add comments to weston_surface fields, whose modification causes
transform state to become outdated.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Remove redundant geometry dirtying from surface_commit() to simplify
further changes.
This code was added in commit 5df8ecac5d
"compositor: Fix partial repaints"
as the fix to:
https://bugs.freedesktop.org/show_bug.cgi?id=56538
The issue fixed by that commit was making the geometry dirty on every
attach, which caused full-surface repaints every time. The bug was
probably introduced by the opaque region changes during implementing
wl_surface.commit. The mentioned commit fixes the opaque handling by
comparing the new and old regions.
However, the commit also introduces additional checks that set
geometry.dirty. In the current code base, this should be unnecessary.
If the pending.sx or pending.sy are not zero, or if the surface size
changes, the configure() hook is responsible for applying the new
values, and so also marking the geometry dirty.
The configure() hook is only called, if there has been a new
wl_surface.attach. Nothing else can change these variables, so this
should be enough.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
When an axis (scroll) event results in a key binding function
being executed, eat the scroll event so the underlying window
doesn't receive it.
Thanks to Scott Moreau for helping me solve this.
Before this change, surface->clip would contain the region of this the
surface that is obscured by opaque containing of other surfaces in any
plane. If a surface was obscured only by a surface in another plane and
the renderer was told to draw that region, the rendering would be
clipped because of that.
This patch changes the clip to be plane specific, so that it contains
only the region of the surface obscured by other surfaces in the same
plane. We also calculate a per plane clip, so that we don't tell the
renderer to draw regions of the primary plane that are obscured by
other planes. This damage remains on the primary plane until the its
clip changes so that they are not obscured anymore.
The current semantics would implicitly attach the most recently attached
buffer at commit time and send a release event when the buffer enventually
was released. The implicit attach is a little too subtle though and this
patch changes the semantics to always only send release events in response
to an attach event. As a consequence, once a compositor releases a buffer,
it no longer has a reference to it and wl_surfcea.damage is undefined.
Thus, the client side visible change is that damage request must always
be preceeded by a wl_surface.attach request, to ensure there's a valid buffer,
even if that means attaching the same buffer again.
Nothing else calls weston_buffer_post_release and the ref-counting and
sending the release event is essentially what weston_buffer_reference is
all about.
We never init this, so we need to copy over the position matrix and then
overwrite the translation entries to make sure we have a valid matrix.
Thanks to Pekka for spotting this (twice).
This way the shell can know when a surface has been unmapped by
checking the value returned by weston_surface_is_mapped(surface).
The configure handlers have now width and height parameters, so
they do not need anymore to check manually the buffer size.
If a surface's buffer is NULL the width and height passed to the
configure are both 0.
Configure is now only called after an attach. The variable
weston_surface.pending.newly_attached is set to 1 on attach, and
after the configure call is reset to 0.
Previously, when coming back from idle the compositor would try to
track if the unlock signal needed to be sent, and the shell would
change the compositor state in order to track when to display or
hide the screensaver.
This patch finishes moving this out of the compositor. With this, the
compositor state should be changed only using the exported functions
weston_compositor_wake() and weston_compositor_sleep(). The unlock
signal will be sent if the compositor wasn't in the ACTIVE state
previously. The lock signal is sent when the compositor becomes idle.
The calls to weston_compositor_wake() in the shell where there to allow
it to trigger the fade in only after the lock surface was configured.
Now the shell has full control of the fade and does not needed to
change the compositor state to do that, so those calls were replaced
with shell_fade() calls.
Previously, it was impossible to override the fade in/out behavior of
Weston using a different shell, since this was implemented in core
Weston. This also led to complicated interaction between the shell and
the core when displaying lock surfaces and screensavers.
This patch starts to solve this issue by moving the fade animation out
of the core. On compositor.c, besides deleting the fade code, the idle
handler had to be changed to emit the lock signal, since it was called
from the fade_frame() function before. This causes a slight change of
behavior, since before the fade would happen with the compositor being
active, while now it is already in the idle state. That leads to the
dpms state being set when cancelling the fade with mouse movement, and
in turn, to a slight freeze with drm compositor. This problem will be
fixed in a follow up patch.
On the shell side, the fade was re-implemented in a slightly different
manner. Instead of using a custom frame function, the fade animation
from animation.c is used. The interface for starting the fade was also
changed to take the value of an enum instead of a float alpha value,
in order to improve readability.
Because seat_get_keyboard is called after initial
weston_surface_activate, wl_data_device_set_keyboard_focus
fails to send data offer for newly connected client due to
wl_seat.focus_resource being NULL.
This patch calls wl_data_device_set_keyboard_focus
in seat_get_keyboard, so it can send data offer for
newly created client (when wl_keyboard.resource_list
and wl_seat.focus_resource are properly set up).
https://bugs.freedesktop.org/show_bug.cgi?id=60617
This patch installs the three header files that define the compositor
plugin interface as well as a pkg-config file. This allows
building weston plugins outside the weston tree. We currently don't make
any guarantees about the plugin API/ABI except that within a stable
branch we won't break it.
libunwind has a dwarf parser and automatically queries the dlinfo
for location of dlopened modules. The resulting backtrace is much
better and includes stack frames in dynamically loaded modules.
krh: Originally submitted for Xorg, adapted for weston:
http://lists.x.org/archives/xorg-devel/2013-February/035493.html
Note this require libunwind at least 1.1 to get the pkg-config files.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Pekka Paalanen
Kristian Høgsberg
Jan Arne Petersen
Richard Hughes
Jonas Ådahl
Rob Bradford
Philipp Brüschweiler
Giulio Camuffo
Peter Maatman
Rune K. Svendsen
Ander Conselvan de Oliveira
Rafal Mielniczuk
Marcin Slusarz