Responsivenes is a per-client thing so we move the ping/pong functionality
to xdg_shell. Having this per-window was carries over from the EWMH
protocol, where the WM has no other way to do this. In wayland, the
compositor can directly ping the client that owns the surface.
This is used to figure out the size of "invisible" decorations, which we'll
use to better know the visible extents of the surface, which we can use for
constraining, titlebars, and more.
This is equivalent to WM_DELETE_WINDOW request under X11, or equivalent
to pressing the "close" button under CSD. Weston currently doesn't have
a compositor-side way to close the window, so no new code is needed on
its side.
When we set the fullscreen flag, we have to wait for the corresponding
configure event and then attach a buffer of that size to indicate
that we've successfully gone fullscreen/maximized.
Without this patch, we can schedule a redraw and go through with it after
setting maximize/fullscreen and end up attaching a buffer of the wrong size.
In practice, what happens is that pressing the maximize button triggers
setting maximized, but also triggers a redraw to paint the maxmize button.
Without this change, repainting the button triggers a repaint that attaches
the same size buffer immediately.
https://bugs.freedesktop.org/show_bug.cgi?id=71927
When resizing the terminal, it shows the grid size in the titlebar.
We reset the title next time we get an enter event. This patch makes
sure we only reset the title the first time we enter after a resize.
This reverts commit 4c1a11074af2c2221d50b0c35d2d0d883647bc15.
Use the new window_set_transient_for / window_get_transient_for
and xdg-shell support for this...
xdg_shell changes this around so that they are flags on the remote
object itself, not separate surface types. Move to a system where
we calculate the state from the flags ourselves and set the appropriate
wl_shell_surface type.
When we port to xdg_shell, we'll drop these flags and simply sync
on the client.
Transient windows, at least not as they are today, don't exist in
xdg_shell. Subsurfaces allow for specially placed surfaces relative
to a window, so use these instead.
The input region of the cursor surface is set to empty in
pointer_cursor_surface_configure(). Since during the commit process
this function is called before the pending input region is made
current, it empties surface->pending.input instead of surface->input.
But pointer_cursor_surface_configure() is also called from
pointer_set_cursor() in order to map the cursor even if there isn't a
subsequent attach and commit to the cursor surface. In that case,
surface->input is never emptied, since the configure function emptied
only the pending input region and there wasn't a commit that made it
effective.
Fix this by emptying both pending and current input regions. The latter
shouldn't cause problems since the surface can't have a role prior to
being assigned the cursor role, so it shouldn't be mapped in the first
place.
Also change toytoolkit so that it triggers the bug.
https://bugs.freedesktop.org/show_bug.cgi?id=73711
Fixes the following compiler warning:
simple-egl.c:434:36: warning: comparison between signed and unsigned
integer expressions [-Wsign-compare]
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Handles potential out of memory situation by skipping the title update.
This fixes the following warning:
terminal.c: In function ‘resize_handler’:
terminal.c:851:11: warning: ignoring return value of ‘asprintf’,
declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
If we destroy a window with an active tooltip, we leave the tooltip
hanging around. Call tooltip destructor when destroying a window.
This fixes the stuck tooltip observed when unplugging a monitor with
an active tooltip on the panel.
Closes: https://bugs.freedesktop.org/show_bug.cgi?id=72931
The keyboard is too chatty, make it use a dbg() function for logging
which defaults to disabled.
Also drop a noisy fprintf() in input_panel_configure().
strncat() into a newly allocated buffer isn't well-defined. I don't know
how this didn't crash all the time, getting blocks from malloc() with
a NUL in the first byte must be fairly common.
Closes: https://bugs.freedesktop.org/show_bug.cgi?id=71750
The subsurfaces example creates a subsurface widget and uses EGL to
render to it directly rather than using the cairo context from the
widget. In theory this shouldn't cause any problems because the westoy
window code lazily creates the cairo surface when an application
creates a cairo context. However commit fdca95c7 changed the behaviour
to force the lazy creation at the beginning of each surface redraw.
This ends up making the triangle surface get two attaches – one from
Cairo and one from the direct EGL.
It looks like it would be difficult to reinstate the lazy surface
creation behaviour whilst still maintaining the error handling for
surface creation because none of the redraw handlers in the example
clients are designed to cope with that. Instead, this patch adds an
explicit option on a widget to disable creating the Cairo surface and
the subsurface example now uses that.
Closes: https://bugs.freedesktop.org/show_bug.cgi?id=72854
This seems like a better name, and will not conflict if someone later
extends wl_surface with a request scaler_set (yeah, unlikely).
This code was written by Jonny Lamb, I just diffed his branches and made
a patch for Weston.
Cc: Jonny Lamb <jonny.lamb@collabora.co.uk>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
If we don't have a background image from the desktop-shell client or the
pointer for some other reason doesn't have a focus we trigger a
segfault as we try to deref the seat->pointer->focus NULL pointer.
https://bugs.freedesktop.org/show_bug.cgi?id=73066
All the libexec programs are only built when BUILD_CLIENTS is true,
so we can just assign libexec_PROGRAMS under the condition. This lets us
drop most of the variable assignments and simplify it a bit.
https://bugs.freedesktop.org/show_bug.cgi?id=72812
Previously the option was --enable-demo-clients and the conditional was
ENABLE_DEMO_CLIENTS. They control whether or not we install the demo clients
(ie all other clients than weston-terminal and weston-info). Rename the
option and the conditional to better reflect this.
This client tests the wl_scaler and wl_surface_scaler protocol
extensions by cropping and then scaling a surface to ensure it is
rendered correctly. More details in comments in the code.
Adds a second renderer implementation to the nested compositor example
that creates a subsurface for each of the client's surfaces. The
client buffers are directly attached to the subsurface using the
EGL_WL_create_wayland_buffer_from_image extension instead of blitting
them in the redraw_handler.
The new renderer is always used if the parent compositor supports the
wl_subcompositor protocol and the EGL extension is available.
Otherwise it will fall back to the blit renderer.
Eventually the nested compositor example will want to be able to cope
with either rendering as it does now with a blit to an intermediate
surface or by attaching the client buffers directly to a subsurface
without copying. This patch moves the code that is specific to the
blitting mechanism into a separate set of functions with a vtable to
make it easier to add the second way of rendering in a later patch.
Previously the frame callback list was tracked as part of the global
compositor state. This patch moves the list to be part of the surface
state like it is in Weston. The frame callback now iterates the list
of surfaces to flush all of the callbacks. This change will be useful
when the example is converted to use subsurfaces so that it can have a
separate frame callback for the subsurface and flush the list for an
individual client surface rather than flushing globally.
The nested compositor example now responds to damage requests and
tracks them in the pending buffer state. This isn't currently used for
anything and it is immediately discarded when the surface is commited
but it will be used later when the example is converted to use
subsurfaces.
The buffer and frame callback state on the surfaces in the nested
compositor example are now double-buffered so that they only take
effect when the commit request is received. This doesn't really make
much difference for the current state that the example has but it will
be useful when more state is added in later patches.
This copies the buffer reference busy count implementation from Weston
to the nested compositor example and adds an internal nested_buffer
struct that we could eventually use to attach data. This will be
useful to adapt the example to use subsurfaces so that we can attach
our compositor-side buffer to the resource.
Otherwise if the surface is destroyed then it will crash when it later
tries to render all of the surfaces. You can replicate this by doing
killall weston-nested-client while the example is running.
The tablet-shell is unmaintained and unused. It is currently
dead-weight and a burden when we make changes to weston. Let's
drop it for now, we can pull it out of git if we find a need for it later.
It is quite possible for os_create_anonymous_file() to fail when trying
to allocate a new wl_shm buffer. Propagate this failure out from
shm_surface_prepare. Most parts of toytoolkit are already avoiding NULL
cairo surfaces.
If cairo surface allocation fails, do not try to call the widget redraw
functions, those are not prepared to deal with NULL. Also do not
schedule a frame callback, this allows us to retry drawing the next
time.
If redraw fails for the main_surface of a window, restore the widget
geometry to what the compositor currently is showing. This keeps the
window visual appearance in sync with application state, so interacting
with the application does not break too badly.
If the very first draw of any window fails, then forcefully exit the
program. E.g. if weston-desktop-shell fails to allocate buffers for the
unlock dialog, w-d-s exits, and weston unlocks the screen automatically.
This patch allows e.g. weston-terminal to stop from enlarging while
resizing, if new sized buffers can no longer the allocated. Even then,
the application stays usable, as it can often repaint in the last
successful size. It does not crash, and the user is able to resize it
smaller, too.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Data device interface in client just handle with pointer's dnd.
If a touch screen trigger dnd, it will use pointer struct like i
nput->sx, input->sy, input->pointer_focus. So if pointer is moving
when touch screen trigeer a dnd, wrong behaviore will occur.
Before touch screen start dnd, system call touch_grab()
to mark the following drag and drop operation is generated by
touch screen.
Defined some common variables in struct input to track dnd.
Note, touch screen and pointer can't generate drag and drop at the
same time, becuae data device protocol can't identify the drag
and drop event is generated by touch screen or pointer.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Kristian Hogsberg <hoegsberg@gmail.com>
Adding the interface for touch screen event in clients/dnd.c, once
user touch down on this app, it will trigger a touch and drag
operation.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Reviewed-by: Kristian Hogsberg <hoegsberg@gmail.com>
We used to only update it on newline, which breaks when somebody moves
the cursor below terminal->end and writes stuff. Instead update it whenever
we write a character to the terminal.
https://bugs.freedesktop.org/show_bug.cgi?id=71935
We used to have to composite the pointer on top of the drag icon, but
the final protocol allows us to specify both a drag icon and a cursor.
Remove the complexity that dealt with that.
This reverts commit 2396aec684.
This exact version of the sub-surface protocol has been copied into
Wayland core. Therefore it must be removed from here to avoid build
conflicts and useless duplication.
No other changes to sub-surface protocol consumers are needed, the
identical API is now offered by libwayland-client and libwayland-server.
The commit adding sub-surfaces to Wayland is:
Author: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
protocol: add sub-surfaces to the core
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
It seems that this was only used by the popup menu infrastructure,
which can handle this all on its own. Implementing e.g. transients
in the future can be done with a simple xdg_shell_set_transient_for.
We used to ungrab first to stop any existing grab and then grab after
showing the menu. That was broken in c680e90489, which
moved the ungrab down below the grab, and as a result menus are now
shown without a grab. This commit moves the grab back up.
when output is removed, weston-desktop-shell should destroy panel
and background surface on destroyed output.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
We don't have a reliable way to know when to clear this indicator.
Typically the pointer will still be over the window when the resize is
done and we'll get an enter event, but if the window sets a max size
the pointer may be over another window when the resize is done.
We'll need a new wl_shell (or more likely xdg_shell) event for this.
The decorations tiles start to overlap and look weird if we go below
200x200 size windows. Just set that as a minimum size if the app
doesn't provide a bigger minimum size.
https://bugs.freedesktop.org/show_bug.cgi?id=66794
Linking failed with missing ceil() here. Making sure that we include
the header and add the missing -lm.
Signed-off-by: Stefan Schmidt <s.schmidt@samsung.com>
This adds a hacked version of simple-shm which can create multiple
pointer and keyboard resources. The resources are created with the
command line options -p and -k. Both take an integer argument which
specifies the time in seconds after the program is started when the
resource should be created. It can also take a second time with a
colon separator to specify when the resource should be released.
For example:
weston-multi-resource -p5 -p7 -k9 -p12:14
That would create a pointer after 5 seconds, a second pointer 2
seconds later, a keyboard 2 seconds after that, a third pointer after
a further 3 seconds and finally after 2 more seconds it would release
that final pointer resource.
This can be used along with WAYLAND_DEBUG to check that it gets the
right events for example if the pointer is created while the client's
surface already has focus and so on.
Currently, the dnd sample client accepts all mime-types and assumes they
are the custom flower mime-type. Only accept if the offer has the right
mime-type.
At this time there is no way to have a key be activated when
touch_up is called, so all this patch does is activate they
key on touch_down.
Signed-off-by: Brian J Lovin <brian.j.lovin@intel.com>
Commit 77ab1721 renamed the client binaries; this change updates
.gitignore to follow this change.
Signed-off-by: Bryce Harrington <b.harrington@samsung.com>
when using cairo-glesv2 subsurface rendering code
implicitly calls eglMakeCurrent(dpy, NULL, NULL, ctx)
(since EGL_KHR_surfaceless_context is used), thus,
triangle_frame_callback:eglSwapBuffers returns EGL_BAD_SURFACE
error for all invocations other that the first one
Now that we use AC_SYS_LARGEFILE, we need to pull in config.h at least
whereever we use mmap(). Fixes at least the test-suite and simple-shm
on 32 bit systems.
Calls into cairo-gles may change the current context, so it was only by
chance that sometimes we had the proper one as current and updated the
correct texture in surface_attach().
In order to fix this, calling display_acquire_window_surface() before
binding the texture for setup is necessary. However this call has the
side effect of allocating a cairo surface for the window. At flush time,
the existence of this surface will cause an eglSwapBuffers(), even
if no rendering was done to it, leading to undefined contents on the
screen. This happens when the idle redraw task runs while there is a
pending frame callback.
Workaround this by moving the texture setup from surface_attach() to the
redraw handler, so that the cairo surface is only allocated when
redering is done.
We go one utf8 char back and then one forward. Just remember the original
position instead, which also avoids a warning about potentially
dereferencing a NULL return value from next_utf8_char().
cairo_egl_device_create(), which is called next,
already checks if EGL_KHR_surfaceless_context is
available. If not, it fallbacks to pbuffer.
Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
And check if the renderer supports the RGB565 format for wl_shm buffers
before creating the cairo surface and requesting the buffer.
It can save quite some memory with big surfaces such as desktop
backgrounds.
This patch adds a configure option which will enable
user to install demo clients if desired. It is disabled
by default.
v2: Remove AC_DEFINE as it is not necesary
For the sample clients we introduce xmalloc() to simplify OOM-handling.
This patch only converts a few callsites, but this will be our strategy
going forward.
It is possible to receive a motion event that was generated by the
compositor based on a pick of a surface of old dimensions. This was
triggerable on toytoolkit clients when minimising. The new window
dimensions were propagated through the widget hierarchy before the event
was dispatched.
This issue was triggering a segfault due to the focussed widget being
lost as the client code tried to identify which widget should have the
focus using co-ordinates outside the dimensions of the surface.
https://bugs.freedesktop.org/show_bug.cgi?id=66795
If the shift modifier is active then we don't make the cursor and the
anchor the same and as a result we develop a selection in the direction
that the arrow key gets pressed in.
https://bugs.freedesktop.org/show_bug.cgi?id=66802
As some CJK fonts are dual-width, calculate the average width of ASCII
glyphs and use that instead of the max_x_advance of the font. This is
what VTE does too.
https://bugs.freedesktop.org/show_bug.cgi?id=63796
The panel and background were never created for hotplugged outputs and
since some parts of the code assume that they always exist that would
lead to desktop-shell client to crash in that case.
This was easier to spot when the display was locked, because Weston
respawns the shell client and the user might not notice since there is
no flicker.
https://bugs.freedesktop.org/show_bug.cgi?id=66531
This lets the code for adding panel launchers and setting up the
background to be moved into panel_* and background_* functions.
Note that this changes the behavior of the default launcher. Before
this change a default launcher would be added only if there was no
config file. Now a launcher is also added if there is no valid
launcher section.
Originally window.c was requesting version 1 but several clients were
calling version 2 and 3 events including the desktop shell itself.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
In preparation for upcoming changes, we want to make sure that apps
written with the toy toolkit continue to operate properly if no XKB
keymap is received. If there's no XKB keymap, then we shouldn't
try to figure out keyboard modifier states (since we probably don't
even have equivalents of PC-style modifiers).
Reviewed-by: Singh, Satyeshwar <satyeshwar.singh@intel.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
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]
A wayland compositor doesn't provide a mechanism for buffer sharing between
clients. Under X, one client can render to a Pixmap and another can use it
as a source in a subsequent drawing operations. Wayland doesn't have a
mechanims to share Pixmaps or textures between clients like that, but it's
possible for one client to act as a nested compositor to another client.
This less work than it sounds, since the nested compositor won't have to
provide input devices or even any kind of shell extension. The nested
compositor and its client can be very tightly coupled and have very specific
expectations of what the other process should provide.
In this example, nested.c is a toytoolkit application that uses cairo-gl
for rendering and forks and execs nested-client.c. As it execs the client,
it passes it one end of a socketpair that will be the clients connection
to the nested compositor. The nested compositor doesn't even create a
listening socket.
The client is a minimal GLES2 application, which just renders a spinning
triangle in its frame callback.
Ignore the whole commit-string or preedit_string transaction when the
delete_surrounding event was invalid.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
Delete text marked with wl_text_input::delete_surrounding_text on
preedit_string event. When text is explicitly marked with
delete_surrounding_text do not delete selected text.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
This lets you try fullscreen in different methods, sizes, scales,
translations, etc. You can verify both output and input (via mouse over
of the rectangles).
Whether or not a shm pool is used for resizing is now configurable at
build time (--disable-resize-optimization).
[pq: removed an unnecessary hunk from the patch]
Scale-crop mode scales the wallpaper to tightly fill the whole output,
but preserving wallpaper aspect ratio. If aspect ratio differs from the
output's, the wallpaper is centered cutting it from top/bottom or
left/right.
Add this to the weston.ini man page, and explain all three modes.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
On Raspberry Pi, weston-desktop-shell is so slow to start, that the
compositor has time to run the fade-in before the wallpaper is up. The
user launching Weston sees the screen flipping to black, the fbcon
fading in, and then the desktop popping up.
To fix this, wait for the weston-desktop-shell to draw
everything before starting the initial fade-in. A new request is
added to the private desktop-shell protocol to signal it. If a
desktop-shell client does not support the new request, the fade-in
happens already at bind time.
If weston-desktop-shell crashes, or does not send the 'desktop_ready'
request in 15 seconds, the compositor will fade in anyway. This should
avoid a blocked screen in case weston-desktop-shell malfunction.
shell_fade_startup() does not directly start the fade-in but schedules
an idle callback, so that the compositor can process all pending events
before starting the fade clock. Otherwise (on RPi) we risk skipping part
of the animation. Yes, it is a hack, that should have been done in
window.c and weston-desktop-shell instead.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
We pick the window scale/tranform based on what the output uses, which means
we can avoid rotations in the compositor, and get sharper rendering
in scaled outputs.
We used to just store the buffer size here which is not right if the
surface has a buffer_transform or a buffer_scale. To fix this we pass
the transform and scale into the toysurface prepare and swap calls and
move both the surface to buffer and the buffer to surface size
conversion there.
Without this interactive resize on the top or left sides of a transformed
or scaled surface will not work correctly.
Apparently some compilers complain about set but not used variables
'available' and 'bufs', but I don't get the warning. Still, separate the
debugging code from shm_surface_buffer_release(), so that we only
compute 'bufs' when it is printed. This should fix the warnings.
The debugging code now prints the shm_surface buffer state before and
after, instead of just after.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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>
In case a toytoolkit application manages to schedule resizes constantly,
throttle them to the main surface display.
When resizing, all surfaces are updated synchronously, so it also makes
sense to synchronize on the main surface's frame callback particularly.
Rendering any faster will not make sense.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Mesa's eglSwapBuffers() waits for the frame event from the previous
swapBuffers, before it returns. Apparently eglSwapInterval(), which
should be able to disable the wait, is unimplemented for now.
When a sub-surface contains an EGL widget, and the commit mode is
synchronized, the frame events will not be delivered to EGL until the
parent surface gets committed. Therefore rendering the EGL widget twice
would lead to a deadlock.
When the window is being resized, we need to force a repaint of the EGL
widget, too, to make the whole window consistent. For that, we need to
make sure the frame event from the previous eglSwapBuffers() actually
arrives.
This patch adds an extra wl_surface.commit(parent), when the window is
being resized, which should guarantee, that the previous eglSwapBuffers
gets its event.
To properly handle an EGL widget in a sub-surface, running in its own
thread, the EGL widget's automatic updates should be paused before
sending the extra wl_surface.commit(parent). A natural place for the
pause would be in the widget's resize hook. However, wl_surface.commit
cannot be called right after resize hooks, because it would commit new,
incomplete surface state. Therefore this patch is not enough for
threaded toytoolkit applications. Luckily those do not exist yet.
When eglSwapInterval() gets implemented, this patch should be reverted.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Add a demo program with:
- a main surface (green)
- a Cairo-image sub-surface (red)
- a raw GLESv2 widget (triangle)
Sub-surface input region is set empty to avoid problems in toytoolkit.
If Cairo links to libGL, then we will end up with also libGLESv2 linked
to subsurfaces program, and both libs getting really used, which leads
to disaster.
Do not build subsurfaces demo, if Cairo links to libGL and cairo-egl is
usable.
The GL rendering loop is not tied to the toytoolkit or the widget, but
runs directly from its own frame callback. Therefore it runs
independent of the rest of the application. This also relies on one of
two things:
- eglSwapInterval(0) is implemented, and therefore eglSwapBuffers never
blocks indefinitely, or
- toytoolkit has a workaround, that guarantees that eglSwapBuffers will
return soon, when we force a repaint on resize.
Otherwise the demo will deadlock.
The code is separated into three sections:
1. The library component, using only EGL, GLESv2, and libwayland-client
APIs, and not aware of any toolkit details of the parent application.
This runs independently until the parent application tells otherwise.
2. The glue code: a toytoolkit application widget, who has its own
rendering machinery.
3. The application written in toytoolkit.
This patch also adds new toytoolkit interfaces:
- widget_get_wl_surface()
- widget_get_last_time()
- widget_input_region_add()
Toytoolkit applications have not had a possibility to change the input
region. The frame widget (decorations) set the input region on its own
when used, otherwise the default input region of everything has been
used. If a window does not have a frame widget, it can now use
widget_input_region_add() to set a custom input region.
These are not window methods, because a widget may lie on a different
wl_surface (sub-surface) than the window.
Changes in v3:
- replace set_commit_mode with set_sync and set_desync
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Add redraw_needed flag to all surfaces, in addition to having one in
window. The window redraw_needed flag is changed to force a redraw of
the whole window, regardless of frame events.
widget_schedule_redraw() now schedules the redraw only for the surface,
where the widget is on. window_schedule_redraw() is equivalent to
scheduling a redraw for all (sub-)surfaces of the window.
We still use only one deferred task for all redraws.
surface_redraw() will skip the redraw, if the window does not force a
redraw and the surface does not need a redraw. It will also skip the
redraw, if the frame callback from the previous redraw has not triggered
yet. When the frame callback later arrives, the redraw task will be
scheduled, if the surface still needs a redraw.
If the window forces a redraw, the redraw is executed even if there is a
pending frame callback. This is for resizing: resizing should trigger a
window repaint, as it really wants to update all surfaces in one go, to
apply possible sub-surface size and position changes. Resizing is the
only thing that makes a window force a redraw.
With this change, subsurfaces demo can avoid repainting the cairo
sub-surface while still animating the GL sub-surface.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
The new application API window_add_subsurface() will create a plain
widget that is on a new sub-surface.
The sub-surface position is taken from the surface's root widget
allocation. This way widget allocations are always in the main surface
(i.e. window) coordinates. However, Cairo drawing coordinates will now
be different to widget coordinates for sub-surfaces. Cairo coordinates
are fixed by applying a translation in widget_cairo_create(), so that
widget drawing code can simply use the widget allocation as before.
Sub-surfaces are hooked up into resize, window flush, redraw, and
find_widget. Window maintains a list of sub-surfaces in top-first order.
Add a client settable default commit mode, and toggle the mode when
resizing to guarantee in-sync updates of a window and its sub-surfaces.
Changes in v3:
- replaced set_commit_mode with set_sync and set_desync
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Increase the maximum number of shm "leaves" to three, and rewrite the
leaf release and pick algorithms. The new algorithms hopefully improve
on buffer re-use while freeing unused buffers.
The goal of the new release algorithm is to always leave one free leaf
with storage allocated, so that the next redraw could start straight on
it.
The new leaf picking algorithm will prefer a free leaf that already has
some storage allocated, instead of just picking the first free leaf that
may need to allocate a new buffer.
Triple-buffering is especially for sub-surfaces, where the compositor
may have one wl_buffer busy on screen, and another wl_buffer busy in the
sub-surface cached state due to the synchronized commit mode. To be
able to forcibly repaint at that situation for e.g. resize, we need a
third buffer.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Add protocol for sub-surfaces, wl_subcompositor as the global interface,
and wl_subsurface as the per-surface interface extension.
This patch is meant to be reverted, once sub-surfaces are moved into
Wayland core.
Changes in v2:
- Rewrite wl_subcompositor.get_subsurface description, and move mapping
and commit details into wl_subsurface description. Check the wording
in wl_subsurface.set_position description.
- Add wl_subsurface.set_commit_mode request, and document it, with the
commit_mode enum. Add bad_value error code for wl_subsurface.
- Moved the protocol into Weston repository so we can land it upstream
sooner for public exposure. It is to be moved into Wayland core later.
- Add destroy requests to both wl_subcompositor and wl_subsurface, and
document them. Experience has showed, that interfaces should always
have a destructor unless there is a good and future-proof reason to not
have it.
Changes in v3:
- Specify, that wl_subsurface will become inert, if the corresponding
wl_surface is destroyed, instead of requiring a certain destruction
order.
- Replaced wl_subsurface.set_commit_mode with wl_subsurface.set_sync and
wl_subsurface.set_desync. Parent-cached commit mode is now called
synchronized, and independent mode is desynchronized. Removed
commit_mode enum, and bad_value error.
- Added support for nested sub-surfaces.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Also rename input_method_context to wl_input_method_context,
input_panel to wl_input_panel and input_panel_surface to
wl_input_panel_surface.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
Use "default" preedit style as default. "None" is used when the
composing text should look like non-composing text.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
There were some reset calls missing, which resulted in wrong preedit
state on input method side.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
wl_egl_window_destory() destroys the window handle that
dri2_destroy_surface() later uses when eglTerminate() is called.
Reordering the tear down order prevents such case from occuring.
