When windows get redirected off screen, all that gets left behind
is black. We don't want to flicker black at startup, though.
This commit maps the overlay window early, before redirecting
toplevels, so they end up getting snapshotted onto the background
pixmap of the overlay window when the overlay window is mapped.
https://bugzilla.gnome.org/show_bug.cgi?id=694321
Send a _NET_WM_FRAME_DRAWN for each newly created window, as required
by the specification. This avoids a race where a window might be created
frozen but already unfrozen by the time we first see fetch the
counter value.
Remove a duplicate call to meta_compositor_set_updates_frozen() which
was called before the MetaWindowActor is created and hence did nothing.
https://bugzilla.gnome.org/show_bug.cgi?id=694771
The background vignette currently fits itself to the painted
texture, instead of the monitor. This causes some very
wrong looking drawing for backgrounds that don't fill the screen.
This commit reworks the vignette shader code to be clearer, more
correct, and parameterized so that it knows how to scale and
position the vignette.
https://bugzilla.gnome.org/show_bug.cgi?id=694393
The WALLPAPER style of background painting currently
draws starting in the upper left corner of each monitor.
This isn't really correct, it means the seam between
monitors doesn't match up and edges look unbalanced if
the tile isn't a multipe of monitor size.
Really, the tiles should be centered in the middle of
the screen. (Just like when tiling a bathroom floor,
tiles should start in the center of the room.)
This commit reworks the math to make that happen.
https://bugzilla.gnome.org/show_bug.cgi?id=694393
Commit 4f2bb583bf started to use a clutter_threads_add_repaint_func_full
callback instead of connecting to the stage's paint signal.
The callback has to return TRUE if it wants to be called again, so fix that
as we want to call it for every frame (otherwise apps supporting the WM SYNC
protocol will stop drawing).
https://bugzilla.gnome.org/show_bug.cgi?id=695006
Doing so causes useless full stage redraws and breaks culling
as clutter cannot know how the signal handler affects painting.
So use clutter_threads_add_repaint_func_full with the
CLUTTER_REPAINT_FLAGS_POST_PAINT flag instead.
https://bugzilla.gnome.org/show_bug.cgi?id=694988
There is currently code to try to fill gradients in a
hardware native format, using #ifdefs. That optimization is
unimportant since gradients only use 2 byte buffers. It's
also incorrect because it's getting the channel order wrong
at buffer initialization time.
This commit drops the ifdefs for clarity and fixes the
channel order.
https://bugzilla.gnome.org/show_bug.cgi?id=694641
Background handling in GNOME is very roundabout at the moment.
gnome-settings-daemon uses gnome-desktop to read the background from
disk into a screen-sized pixmap. It then sets the XID of that pixmap
on the _XROOTPMAP_ID root window property.
mutter puts that pixmap into a texture/actor which gnome-shell then
uses.
Having the gnome-settings-daemon detour from disk to screen means we
can't easily let the compositor handle transition effects when
switching backgrounds. Also, having the background actor be
per-screen instead of per-monitor means we may have oversized
textures in certain multihead setups.
This commit changes mutter to read backgrounds from disk itself, and
it changes backgrounds to be per-monitor.
This way background handling/compositing is left to the compositor.
https://bugzilla.gnome.org/show_bug.cgi?id=682427
actor_is_untransformed is a function meta-window-group uses to determine
if an actor is relatively pixel aligned and not contorted. It then
returns the coordinates of the actor.
In a subsequent commit will need the function in a different file, so
this commit separates it out.
https://bugzilla.gnome.org/show_bug.cgi?id=682427
Now that the background actor is reactive, this means that
clicks on the window group part of the stage, even when they're
on an X window, will be registered as the background actor, as
all of the other children of the group aren't reactive. This can
happen when a plugin takes a modal grab, for instance.
https://bugzilla.gnome.org/show_bug.cgi?id=681540
We do, in fact, need freezing to affect window geometry, so that
move-resize operations (such as an interactive resize from the
left, or a resize of a popup centered by the application) occur
atomically.
So to make map effects work properly, only exclude the initial
placement of a window from freezing. (In the future, we may want
to consider whether pure moves of a window being done in response
to a user drag should also be excluded from freezing.)
Rename meta_window_sync_actor_position() to
meta_window_sync_actor_geometry() for clarity.
https://bugzilla.gnome.org/show_bug.cgi?id=693922
If a window is frozen because it is repainting, that shouldn't kee[p
us from updating its position: we don't want a slow-to-update window
to move around the screen chunkily when dragged. (This does reduce
the efficiency of begin/end frames for replacing double-buffering,
but that never works very well in the case where there was an overlapping
window or the entire screen needed redrawing for whatever reason.)
This fixes a bug where a window that was mapped frozen would not get
positioned properly until after the map effect finished, and would
jump from 0,0 at that point. Since effects *do* need to prevent
actor repositioning by Mutter, we must position the actor before any
effect starts.
Because we now are queuing invalidates on frozen windows, fix the
logic for that so that we properly update everything when the window
unfreezes.
https://bugzilla.gnome.org/show_bug.cgi?id=693922
The WM spec requires _NET_WM_FRAME_DRAWN to *always* be sent when
there is an appropriate update to the sync counter value. We were
potentially missing _NET_WM_FRAME_DRAWN when an application did a
spontaneous update during an interactive resize and during effects.
Refactor the code to always send _NET_WM_FRAME_DRAWN, even when
a window is frozen.
https://bugzilla.gnome.org/show_bug.cgi?id=693833
Put override redirect windows such as menus into a separate window group
stacked above everything else. This will allow us to visually put these
above other compositior chrome.
Based on a patch from Muffin.
https://bugzilla.gnome.org/show_bug.cgi?id=633620
When a client is drawing as hard as possible (without sleeping
between frames) we need to draw as soon possible, since sleeping
will decrease the effective frame rate shown to the user, and
can also result in the system never kicking out of power-saving
mode because it doesn't look fully utilized.
Use the amount the client increments the counter value by when
ending the frame to distinguish these cases:
- Increment by 1: a no-delay frame
- Increment by more than 1: a non-urgent frame, handle normally
https://bugzilla.gnome.org/show_bug.cgi?id=685463
We previously had timestamp information stubbed out in
_NET_WM_FRAME_DRAWN. Instead of this, add a high-resolution timestamp
in _NET_WM_FRAME_DRAWN then send a _NET_WM_FRAME_TIMINGS message
after when we have complete frame timing information, representing
the "presentation time" of the frame as an offset from the timestamp
in _NET_WM_FRAME_DRAWN.
To provide maximum space in the messages,_NET_WM_FRAME_DRAWN and
_NET_WM_FRAME_TIMINGS are not done as WM_PROTOCOLS messages but
have their own message types.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Add a function to convert from g_get_monotonic_time() to a
"high-resolution server timestamp" with microsecond precision.
These timestamps will be used when communicating frame timing
information to the client.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Using a "sync delay" where we wait for 2 ms after the vblank before
starting to draw the next frame provides for much more predictable
latency for applications. An application can know that if it completes
a frame any time between 8ms before the vblank to the vblank,
it will reliably be drawn on the following vblank period, rather than
having an unpredictable latency depending on whether the compositor
is currently busy drawing a frame or not.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Instead of defining CLUTTER_ENABLE_EXPERIMENTAL_API and
COGL_ENABLE_EXPERIMENTAL_API in individual source files, enable
them on the command line. We weren't tracking exactly what pieces of
experimental API we were using and we were using the experimental
API in most source files that used Clutter and Cogl, so the
local #defines were annoying rather than useful.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
It's possible that a client might update the (extended)
_NET_WM_SYNC_REQUEST_COUNTER counter twice without actually drawing
anything. In that case, we still should send a _NET_WM_FRAME_DRAWN
message since it's hard for a client to know every case in which
no damage is generated. For now, do it the easy way by forcing a
stage repaint.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
When the application provides the extended second counter for
_NET_WM_SYNC_REQUEST, send a client message with completion
information after the next redraw after each counter update
by the application.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Replace the unused meta_compositor_set_updates() with
a reversed-meaning meta_compositor_set_updates_frozen(), and use
it to implement freezing application window updates during
interactive resizing. This avoids drawing new areas of the window
with blank content before the application has a chance to repaint.
https://bugzilla.gnome.org/show_bug.cgi?id=685463
Some windows may already have event masks on them that we've selected
for, especially if we're using GTK+ windows. In particular, this fixes
window menus in the XI2 port.
https://bugzilla.gnome.org/show_bug.cgi?id=690581
This new hint allows compositors to know what portions of a window
will be obscured, as a region above them is opaque. For an RGB window,
possible to glean this information from the bounding shape region of
a client window, but not for an ARGB32 window. This new hint allows
clients that use ARGB32 windows to say which part of the window is
opaque, allowing this sort of optimization.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
With the shape region always set, it turns out the bounding region
is only used in one place, that's easily replaced with a variable
we already have available to us.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
With recent changes in the way the window mask texture is constructed,
the shape_region is always set, which means that we can remove
conditionals checking if the shape region is set.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
With the shape region always set, it turns out the bounding region
is only used in one place, that's easily replaced with a variable
we already have available to us.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
With recent changes in the way the window mask texture is constructed,
the shape_region is always set, which means that we can remove
conditionals checking if the shape region is set.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
Currently we only unredirect monitor sized override redirect windows.
This was supposed to catch fullscreen opengl games and improve
their performance.
Newer games like fullscreen webgl games and SDL2 using games (like L4D) as well as wine based games do not use override redirect windows so we need a better
heuristic to catch them.
GLX windows always damage the whole window when calling glxSwapBuffers and
never damage sub regions. So we can use that to detect them.
The new heuristic unredirects windows fullscreen windows that have damaged the
whole window more then 100 times in a row.
https://bugzilla.gnome.org/show_bug.cgi?id=683786
We should call meta_window_actor_detach not
meta_window_actor_queue_create_pixmap to create a new pixmap when we redirect a
previously unredirected window again.
https://bugzilla.gnome.org/show_bug.cgi?id=693042
With some recent changes to how mask textures are constructed from
shapes, a helper method we made was only called in one place, allowing
us to drop a reference/destroy, and remove a double clear.
https://bugzilla.gnome.org/show_bug.cgi?id=679901
Due to a conditional error, meta_region_builder_add_rectangle was called
on every single blank pixel, rather than at the end of spans. With the new
rename, it's fairly clear to see the error. Fix the check to ensure that
we no longer make extraneous calls to meta_region_builder_add_rectangle.
https://bugzilla.gnome.org/show_bug.cgi?id=691874
In random places that are not grabs, we selected for events on
things like the root window, stage window, COW and more. Switch
these over to using the proper XI2 APIs.
https://bugzilla.gnome.org/show_bug.cgi?id=688779
Currently keybindings are blocked while the compositor holds a grab; if
we want a keybinding to be available anyway, we use captured ClutterEvents
to determine the KeyBindingAction the event would have triggered and
run our own handlers (ugh).
Instead, provide a hook to allow the compositor to filter out keybindings
before processing them normally, regardless of whether the compositor
holds a grab or not.
https://bugzilla.gnome.org/show_bug.cgi?id=688202
Using ClutterEffect is not pratical on MetaBackgroundActor, as the FBO
redirection has a noticeable performance impact. Instead, allow adding
GLSL code directly to the pipeline used to draw the background texture.
At the same time, port MetaBackgroundActor to modern Cogl API.
https://bugzilla.gnome.org/show_bug.cgi?id=669798
When support for multiple plugins was removed, the logic that was
supposed to send events to Clutter directly *only if there is no filter
function from a plugin* was broken, so events were being sent to
Clutter twice if Clutter didn't consume them the first time.
https://bugzilla.gnome.org/show_bug.cgi?id=686406
meta_window_group_paint tries to carefully figure out which parts of the
scene it can avoid painting. One area it avoids painting is the region of
the screen occupied by an unredirected window (if there's one present).
When subtracting from the visible region, it gets the coordinate spaces
confused, and ends up subtracting the area at the wrong offset. Fix this
by translating the rectangle subtracted from the visible region.
https://bugzilla.gnome.org/show_bug.cgi?id=677116
Instead of getting the x/y of the MetaBackgroundActor with respect to the
parent, use the same logic that we do for windows, fixing the case
where there is a more complex transformation involved.
https://bugzilla.gnome.org/show_bug.cgi?id=681221
Currently when the window group is moved, the visible region set
on the background actor no longer matches the actually visible
region, resulting in flickering around window actors.
Fix by translating the visible region with the window group.
https://bugzilla.gnome.org/show_bug.cgi?id=681221
There was a potential case where we were trying to use uninitialized memory,
in the case where the X server threw an error during XShapeGetRectangles.
In this case, we need to use the implicit shape for the window, which means
we need to rearrange code flow to make it work.
https://bugzilla.gnome.org/show_bug.cgi?id=677977
If a window has its BoundingRegion shaped, we shouldn't unredirect it,
as it expects the rest of the windows from being shown under it. This
prevents applications like the Skype screen recorder or gtkRecordMyDesktop
which want to show a "border" around the recorded area from being
unredirected, giving the appearance of making the desktop freeze.
https://bugzilla.gnome.org/show_bug.cgi?id=677657
The "multiple plugins loaded at once" strategy was always a big fiction:
while it may be viable if you're super careful, it's fragile and requires
a bit of infrastructure that we would be better off without.
Note that for simplicity, we're keeping the MetaPluginManager, but it only
manages one plugin. A possible future cleanup would be to remove it entirely.
https://bugzilla.gnome.org/show_bug.cgi?id=676855
We already check that the plugin has the appropriate vfunc in the klass
structure, so we shouldn't need to check for the same data again with
a "features" long.
https://bugzilla.gnome.org/show_bug.cgi?id=676855
This effectively makes MetaShapedTexture not a MetaShapedTexture, but a simple
and dumb MetaMaskedTexture, with an optimization for clipped regions.
We're doing this as the mask may need to be more complicated than made of
a cairo path -- we eventually want GTK+ to draw the entire frame background,
which we'll then scan.
https://bugzilla.gnome.org/show_bug.cgi?id=676052
As we want GTK+ to paint the mask on an A8, we can't simply use a cairo
path. A later commit will make this into a simple masked texture, and
meta-window-actor will be in control of the mask.
https://bugzilla.gnome.org/show_bug.cgi?id=676052
If we explicitly check for a NULL pointer, clang will assume
that the pointer may be NULL at some point. We clearly rely
on the pointer being non-NULL earlier, so fix this guy up.
https://bugzilla.gnome.org/show_bug.cgi?id=674876
meta_window_actor_has_shadow() is called for every paint for every
window, verbosely logging in it makes the output of MUTTER_VERBOSE
pretty much useless.
All animations use the constants directly, so this is just declaring
a bunch of local variables and then doing nothing with it.
Another clang warning.
https://bugzilla.gnome.org/show_bug.cgi?id=674876
Cogl now has public experimental API to create a rectangle texture
which we can use instead of creating a foreign texture with GL. This
avoids Mutter depending on Cogl including a GL header from its public
headers which it might not do in future.
https://bugzilla.gnome.org/show_bug.cgi?id=672711
Since Cogl doesn't support multi-texturing with sliced textures and the
shape texture is combined with the texture-from-pixmap texture we need
to make sure we never construct a sliced mask texture. This patch simply
passes the COGL_TEXTURE_NO_SLICE flag to cogl_texture_from_data when
creating the shape mask texture.
https://bugzilla.gnome.org/show_bug.cgi?id=674731
A lot of code did something similar to:
MetaFrameBorders borders;
if (window->frame)
meta_frame_calc_borders (window->frame, &borders);
else
meta_frame_borders_clear (&borders);
Sometimes, the else part was omitted and we were unknowingly using
uninitalized values for OR windows. Clean this up by just testing
for a NULL frame in meta_frame_calc_borders and clearing for the
caller if so.
https://bugzilla.gnome.org/show_bug.cgi?id=643606
Mutter originally started out with the idea that only a subset of the total
API was exposed to plugins, so some APIs are duplicated on MutterPlugin.
We've long since abandoned that idea; remove these wrappers.
https://bugzilla.gnome.org/show_bug.cgi?id=671103
The experimental Cogl api cogl_texture_pixmap_new() was recently changed
so it now expects an explicit CoglContext argument and it can also
return exceptions now via a GError. This patch updates mutters use of
the api accordingly.
This was preventing Clutter from running its dispose, preventing
it from being destroyed correctly. While a major bug and possibly
big memory leak, the most obvious effect was the message that Clutter
spat out:
Clutter-CRITICAL **: clutter_actor_iter_next: assertion `ri->age == ri->root->priv->age' failed
Since we never disposed the actor correctly, it was never removed
from its parent, and the age wasn't updated correctly.
When we were shaping the window with a cairo region, there was an easy
optimization to restrict painting only to the pixels we were going to
actually draw. With rounded corners, the amount of work we have to do
figure out what pixels isn't worth the small savings of not drawing the
completely transparent parts of the corners, so remove this optimization,
and the supporting meta_shaped_texture_get_visible_pixels_region()
https://bugzilla.gnome.org/show_bug.cgi?id=657639
ClutterTexture has many features that we simply don't use and don't make
sense for a subclass with custom drawing. Deriving directly from ClutterActor
simplifies our code by avoiding workarounds and makes things more robust.
Additionally, make it public. GNOME Shell was already assuming that any
MetaShapedTexture was also a ClutterTexture, and we need to replace these
bits with new API for GNOME Shell to use.
https://bugzilla.gnome.org/show_bug.cgi?id=660941
If we get two configure events on the root window in close
sequence, then we could get the sequence:
ConfigureNotify on the root window w1xh1
Processed by Mutter
clutter_actor_set_size(stage, w1, h1)
<relayout happens, stage window resized by clutter>
ConfigureNotify on the root window, w2xh2
Processed by Mutter
clutter_actor_set_size(stage, w2, h2)
ConfigureNotify on the stage window, w1, h1)
Processed by Clutter
clutter_actor_set_size(stage, w1, h1)
<relayout happens, stage window resized by clutter>
Leaving the stage at the wrong size. To avoid fighting with Clutter,
switch to resizing the stage with XResizeWindow(), similar to how a
toplevel window is handled by a window manager.
The code here was always incorrect - we were processing damage events for
windows without having a texture. Before, this didn't matter, as
cogl_texture_get_width silently returned 0 for invalid handles. Cogl commit
4c3dadd35e changed this.
The fix here involves two strategies. First, we try to guard MetaTextureTower
from invalid textures. Second, we try not to go down the path that eventually
calls meta_shaped_texture_update_area by not handling damage events if we
don't have a texture for the window.
https://bugzilla.gnome.org/show_bug.cgi?id=660941
When a window loses its frame we must unset any overlay path previously set on
the shaped texture.
Not doing so would cause rendering glitches near the window corners in
e.g. chrome/chromium by changing the Appearance preference "Use system title
bar and borders" → "Hide system title bar and use compact borders".
https://bugzilla.gnome.org/show_bug.cgi?id=659477
XFixesCreateRegionFromWindow does not take the window's position into account,
which results into setting a wrong shape for windows not located on the
leftmost monitor.
Fix that by creating the region from the window's MetaRectangle.
https://bugzilla.gnome.org/show_bug.cgi?id=657869
Our usage of DamageReportBoundingBox was causing us to miss some
updates when an area of the screen was drawn twice in rapid
succession. Add an explicit XSync() call to force the server
to flush rendering to the kernel before we draw.
https://bugzilla.gnome.org/show_bug.cgi?id=657071
* Export meta_display_add_ignored_crossing_serial()
* Add the serial for reshaping the stage
* Increase the size of the "ignored_serials" array a bit to
try to avoid the possibility of losing serials from multiple
reshapes happening close together.
https://bugzilla.gnome.org/show_bug.cgi?id=597190
Some apps that do a lot of rendering on the screen like games, mostly run in
fullscreen where there is no need for them to be redirected doing so does add
an overhead; while performance is critical for those apps.
This can be disabled / enabled at runtime using
meta_enable_unredirect_for_screen / meta_disable_unredirect_for_screen
https://bugzilla.gnome.org/show_bug.cgi?id=597014
Instead of requiring a singleton MetaBackgroundActor for the screen,
allow creating multiple copies that internally share a single
CoglTexture behind the scenes. This will be useful for allowing
multiple views of the screen background with different rendering
options.
https://bugzilla.gnome.org/show_bug.cgi?id=656433
The code here was wrong in every way: it only updated the shape if all the
borders changed. It never saved new last_borders even if it *had* changed,
and the bounding rectangle's x and y positions were still important otherwise.
This had user-visible impact when doing simple things like changing the
border_width. It would short-circuit here and due to the above incorrectness,
weirdness could happen where windows would be cut off and so on.
https://bugzilla.gnome.org/show_bug.cgi?id=656334
Since we're not setting the frame's output shape any more, it doesn't
make sense to calculate the output shape based on the frame window.
Instead, track the client window directly and calculate the output shape
based on that.
https://bugzilla.gnome.org/show_bug.cgi?id=644930
MetaShapedTexture can be a ClutterX11TexturePixmap sub-class, given that
ClutterGLXTexturePixmap is just a shim compatibility layer since Clutter
1.4, and it's been deprecated.
https://bugzilla.gnome.org/show_bug.cgi?id=655064
meta-texture-rectangle and meta-shaped-texture both create textures
with GL_TEXTURE_RECTANGLE_ARB as the target using direct GL
calls. This patch moves that code into a shared utility function in a
separate file instead. The function resolves the required GL symbols
dynamically instead of linking to them directly so that if Clutter
eventually stops linking to -lGL mutter will continue to build. The
function also splits the texture creation into a separate texture
creation and data upload stage so that it can use
cogl_texture_set_region to upload the data. That way it can avoid
clobbering the glPixelStore state and it can let Cogl do any necessary
format conversion. The code preserves the old value of the rectangle
texture binding instead of clobbering it because Cogl expects to be
able to cache this value to avoid redundant glBindTexture
calls. Finally, the function uses cogl_object_set_data to
automatically destroy the GL texture when the Cogl texture is
destroyed. This avoids having to have special code to destroy the cogl
texture.
https://bugzilla.gnome.org/show_bug.cgi?id=654569
texture_tower_revalidate_fbo() called cogl_flush() to work around
clutter bug #2110, which has been long fixed.
As we depend on clutter 1.7.x anyway we can just remove that workaround.
https://bugzilla.gnome.org/show_bug.cgi?id=654729
Clutter now has some API to get the bounds of the current redraw clip
so Mutter no longer needs to make direct GL calls to get the scissor
rect. This should make it more robust against Cogl or Clutter changing
how it does the clipping.
https://bugzilla.gnome.org/show_bug.cgi?id=654551
- menus have a very subtle shadow, define the outline better. Required for gtk theming.
- focused windows are better identified now as unfocused windows have a subtle shadow.
https://bugzilla.gnome.org/show_bug.cgi?id=649374
A x/y typo that was causing shadow bounds to be incorrectly
computed and trails to be left in some circumstances. Behavior
noted by Jakub Steiner.
https://bugzilla.gnome.org/show_bug.cgi?id=649374
According to the XShape specification, the shaped region should always be
a subset of the bounding region. Certain programs such as wine depended
on this behavior.
https://bugzilla.gnome.org/show_bug.cgi?id=627880
* When unmanaging a screen, stop redirecting subwindows explicitly,
so that we do that before destroying the window manager selection
window.
* Improve comment in the retry code
* When exiting because the previous compositor couldn't be replaced,
don't g_error() and drop a core file.
https://bugzilla.gnome.org/show_bug.cgi?id=653121
When there was no root background pixmap, we were using a 1x1 repeating
texture as a simple way of drawing a solid color without adding a
second code path. However, when that 1x1 texture was combined into
a larger "atlas texture", hardware repeat couldn't be used, so a
small inefficiency from this approach became an enormous inefficiency
as clutter drew every pixel of the background as a separate rectangle.
https://bugzilla.gnome.org/show_bug.cgi?id=652507
An ARGB window with a frame is likely something like a transparent
terminal. It looks awful (and breaks transparency) to draw a big
opaque black shadow under the window, so clip out the region under
the terminal from the shadow we draw.
Add meta_window_get_frame_bounds() to get a cairo region for the
outer bounds of the frame of a window, and modify the frame handling
code to notice changes to the frame shape and discard a cached
region. meta_frames_apply_shapes() is refactored so we can extract
meta_frames_get_frame_bounds() from it.
https://bugzilla.gnome.org/show_bug.cgi?id=635268
Using MetaWindowActor.opacity for _NET_WM_WINDOW_OPACITY makes it
difficult to implement effects like fading a window in on map.
Instead, set the opacity on the MetaShadedTexture child and use
it when drawing the shadow.
Since the check MetaWindowGroup does on meta_actor_get_paint_opacity()
no longer covers this, we need to handle the opacity in
meta_window_actor_get_obscured_region() explicitly.
https://bugzilla.gnome.org/show_bug.cgi?id=648613
We need to redraw a window's shadow any time the value of
meta_window_appears_focused() changes. So make that into a property so
we can get notifications on it.
https://bugzilla.gnome.org/show_bug.cgi?id=636904
Until the actor is destroyed, we need to have access to the
MetaWindow to access some fields used for painting. Keep a strong
reference to the window rather than just hoping the window will
not be freed.
https://bugzilla.gnome.org/show_bug.cgi?id=642787
If mutter is going to be a "real" library, then it should install its
includes so that users can do
#include <meta/display.h>
rather than
#include <display.h>
So rename the includedir accordingly, move src/include to src/meta,
and fix up all internal references.
There were a handful of header files in src/include that were not
installed; this appears to have been part of a plan to keep core/,
ui/, and compositor/ from looking at each others' private includes,
but that wasn't really working anyway. So move all non-installed
headers back into core/ or ui/.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
Move all of the mutter code into a new libmutter-wm.so, split its
main() method into meta_get_option_context(), meta_init() and
meta_run(), add methods for using in-process plugins, and add
libmutter-wm.pc pointing to the new library.
The mutter binary is now just a tiny program that links against
libmutter-wm. The --version and --mutter-plugins options are handled
at the mutter level, not in libmutter-wm, and a few strange unused
command-line options (--no-force-fullscreen and --no-tab-popup) have
been removed.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
Revert the early_initialize changes (which get in the way in the
"libmutter-wm" paradigm), remove the GConf key for setting plugins,
and remove plugin "params", which weren't being used. Also remove all
the logic for unloading and reloading plugins, since the list never
changes after startup now.
https://bugzilla.gnome.org/show_bug.cgi?id=643959
For GNOME Shell, we need to grab our DBus names *before* we talk XSMP.
gnome-session takes our XSMP connection as "I'm ready", and starts
running all the other random crud that people dropped in as autostart
files. But for example, we need to have claimed
org.freedesktop.Notifications before a lot of said crud starts.
This requires a plugin API version bump.
Misc: Move handling of --version way earlier in main() where
it should be; no point having it wedged after plugin handling.
If a plugin was explicitly specified, falling back to the default
silently is bad; a manager component like gnome-session can
do a better job of handling this scenario.
An example we've hit in gnome-shell is where SpiderMonkey changes
without gjs being rebuilt, and loading the plugin fails due to
unresolved symbols.
But there are obviously others, like the file being missing or
corrupt.
https://bugzilla.gnome.org/show_bug.cgi?id=641384
Similar to the recently added 'size-changed' signal, we may want to do
something in response to a window being repositioned without waiting for
notify::allocation. (Especially since what we can do in notify::allocation
is severely limited by Clutter forbidding queueing an allocation at that
point.)
https://bugzilla.gnome.org/show_bug.cgi?id=641310
A logic bug was resulting in the bottom hidden window (hidden means means
minimized or on a different workspace) continually being stacked above
the other hidden windows.
https://bugzilla.gnome.org/show_bug.cgi?id=640679
Emit a signal when the window size changes. While it is already
possible to connect to notify::allocation (or width/height), the
new signal is emitted outside a clutter allocation cycle, which
makes it more convenient when adjusting an actor's size/position
in response.
* GL_TEXTURE_RECTANGLE_ARB not avaliable
* clutter_glx_texture_pixmap_using_extension / CLUTTER_GLX_TEXTURE_PIXMAP not avaliable
Signed-off-by: Andreas Mueller <schnitzeltony@gmx.de>
Protect against shape_region or bounding_region being NULL in check_needs_shadow.
This can happen for short lived windows and result into a crash.
https://bugzilla.gnome.org/show_bug.cgi?id=635421
Since we aren't depending on Clutter 1.5 or using the new
CoglPipeline name elsewhere, we need to stick to the old
COGL_MATERIAL_WRAP_MODE_* names, which are provided with
compatibility defines in Clutter 1.4.
Pointed out by Rico Tzschichholz
If we have repeats on for a full-sized image, then if the background
is displayed scaled (for example, in a desktop preview mode) then we
can get artifacts along the edge of the background where the repeat
of the opposite edge is blended in by bilinear scaling. So turn off
repeats when the screen and background image sizes match.
https://bugzilla.gnome.org/show_bug.cgi?id=634833
Add code to track and draw the root window background. The advantage of doing
it here as compared to in a plugin is that we can use the visiblity smarts
of MetaWindowGroup to optimize out drawing the background when obscured.
If handling other than tracking the _XROOTPMAP_ID property is desired in the
future, more functionality like setting the background from a file or doing
cross-fades can be added.
The new background actor is exposed to plugins via meta_plugin_get_background_actor()
similar to other exposed actors to allow cloning the background for use in
other displays. The actual class is not installed for public consumption at
the moment since it has no useful methods.
https://bugzilla.gnome.org/show_bug.cgi?id=634833
Create new cogl-utils.[ch] and move a helper function from
MetaShadowFactory there as meta_create_texture_material(); this
allows us to create single-layer materials from different parts of
Mutter and have them share the same template material.
Also expose a function for creating a 1x1 texture of a given
color meta_create_color_texture_4ub().
https://bugzilla.gnome.org/show_bug.cgi?id=634833
When in a partial stage paint, we can combine that with the visibility
information in MetaWindowGroup to further eliminate unneeded drawing.
Since there is no current Clutter API to access the current clip,
drop to using GL directly.
https://bugzilla.gnome.org/show_bug.cgi?id=634779
This is just a microptimization, as we pretty much always use
TFP (and do the check every time we set a pixmap),
we can let gcc generate better code here.
https://bugzilla.gnome.org/show_bug.cgi?id=633002
For various reasons (mostly the stack tracker correctly predicting the
stacking order before getting events, but also because of the processing
that the compositor does to get the actor stacking order) the compositor
can be told to sync the stack when it has nothing to do. Detect this
at the last moment before actually telling Clutter to restack to avoid
triggering unnecessary redraws.
https://bugzilla.gnome.org/show_bug.cgi?id=634771
Fullscreen and maximized windows never have visible shadows - the only
case where we would ever see them is if they bleed onto an adjacent
monitor and that looks bad.
It's small performance win to avoid computing them, and this also avoids
painting the top shadow for all maximized windows in GNOME Shell - since
the top panel isn't a X window, it doesn't factor into the computation
of what parts of windows are visible and maximized windows are computed
as having a top shadow.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Instead of making optimizing obscured shadows an all-or-none operation,
pass the clip region to meta_shadow_paint() and only paint the 9-slices
that are at least partially visible.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Instead of setting shadow parameters on individual windows, add the
idea of a "shadow class". Windows have default shadow classes based
on their frame and window type, which can be overriden by setting
the shadow-class property.
Each shadow class has separably configurable parameters for the
focused and unfocused state. New shadow classes can be defined with
arbitrary names.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The basic MetaShadowFactory type is moved to a public header, while
the functions to fetch and paint shadows are kept private.
The public object will be used for configuration of shadows by
plugins.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
For attached modal dialogs, we want the shadow to fade out at the top
as if the window was glued to the parent at the top. Add a
shadow-top-fade property to MetaWindowActor and the corresponding
parameter to meta_shadow_factory_get_shadow().
The internal implementation of MetaShadow is adjusted to work
in terms of an "inner border" and "outer border" instead of doing
the calculations in terms of an aggregate border and the spread
of the shadow. The old way of doing things gets clumsy when the
top_fade distance is added in as well.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The current shadow code just uses a single fixed texture (the Gaussian
blur of a rectangle with a fixed blur radius) for drawing all window
shadows. This patch adds the ability
* Implement efficient blurring of arbitrary regions by approximating
a Gaussian blur with multiple box blurs.
* Detect when multiple windows can use the same shadow texture by
converting their shape into a size-invariant MetaWindowShape.
* Add properties shadow-radius, shadow-x-offset, shadow-y-offset,
shadow-opacity to allow the shadow for a window to be configured.
* Add meta_window_actor_paint() and draw the shadow directly
from there rather than using a child actor.
* Remove TidyTextureFrame, which is no longer used
https://bugzilla.gnome.org/show_bug.cgi?id=592382
While the Meego developers agreed to switching mutter to GTK+-3.0
unconditionally a while ago, Canonical used a GTK+-2.0 build for their
Unity project. As Canonical now announced a switch to compiz as their
window manager, there is no longer a reason to maintain GTK+-2.0
compatibility.
https://bugzilla.gnome.org/show_bug.cgi?id=633133
Move all objects and functions namespaced with Mutter into the Meta namespace
to get a single consistent namespace. Changes that aren't simply changing mutter
to meta:
MutterWindow => MetaWindowActor
mutter_get_windows => meta_get_window_actors
mutter_plugin_get_windows => meta_plugin_get_window_actors
https://bugzilla.gnome.org/show_bug.cgi?id=628520
In many places, MetaRegion was being used entirely internally, rather
than for gtk2/gtk3 compatibility. In these cases, it's simpler to just
depend on cairo-1.10 (for both gtk2 and gtk3) and use cairo_region_t.
The few places where we did need GDK compatibility (GdkEvent.region and
gdk_window_shape_combine_mask) are replaced with a combination of
converting GdkRegion to cairo_region_t and conditional code.
https://bugzilla.gnome.org/show_bug.cgi?id=632474
Currently mutter-window has its own type field, even though the same
information is already present in meta_window.
And while at it get rid of MetaCompWindowType, it is equally redundant.
https://bugzilla.gnome.org/show_bug.cgi?id=630363
Cleanly build with --warn-fatal. Implementation:
* Liberally apply (skip) where the API is clearly C only, e.g. uses
XLib. The theming code and MutterPlugin are skipped too.
* Add missing (transfer) and (element-type) annotations
For a few functions that had a comment, I turned it into gtk-doc, but
I didn't (with a few exceptions) try to write new documentation in
this pass.
XDamageSubstract can create a BadDamage
(when the window goes away before XDamageSubstract is called)
and thus resulting into a crash.
Fix it by protecting the call with an error trap.
https://bugzilla.gnome.org/show_bug.cgi?id=623235
We don't get correct notifications for the ::cogl-texture property of
ClutterTexture in the case when we are unsetting the pixmap before calling
XFreePixmap. (This is because ClutterX11TexturePixmap is a hack on top
of ClutterTexture and we're a hack on top of that.) So we need to manually
clear everything out.
For consistency we also make sure that we drop all references to dead
textures:
- When the shape changes
- If the window pixmap texture changes without first being cleared
(this is not expected to happen)
https://bugzilla.gnome.org/show_bug.cgi?id=627210
Rather than trying to find out from Clutter whether mipmap generation
can be used together with texture_from_pixmap, just always assume
it can't and use the MutterTextureTower emulation code.
This fixes a problem with our previous hack for doing the query
no longer working. In the rare cases where mipmap generation
is supported, it is unlikely to produce significantly more efficient
or better looking results than the emulation. (In terms of efficiency,
we have better knowledge of when we need to update the lower mipmaps
and when we don't than CoglTexturePixmapX11.)
Some care is taken so mutter_shaped_texture_set_create_mipmaps() works
when changed on the fly and properly discards the old mipmap levels.
This isn't necesary currently, since it can only be controlled via
envvar, but is easier than future-proofing through documentation.
https://bugzilla.gnome.org/show_bug.cgi?id=627087
At least with the Mesa/DRI implementation of GLX, calling XFreePixmap()
on a pixmap before glxDestroyPixmap() on the corresponding GLX pixmap
causes an X error. To avoid triggering this with the new
ClutterTexturePixmapX11 code, we need to move our XFreePixmap after
unsetting the pixmap from the actor.
https://bugzilla.gnome.org/show_bug.cgi?id=627210
Starting with clutter 1.4 clutter / cogl only knows whether TFP is in use after
setting the pixmap, so doing the check before setting the pixmap will just
lead to a wrong message.
https://bugzilla.gnome.org/show_bug.cgi?id=624757
The current effect API passes an unnecessary list of windows to
switch_workspace() and forces a window to be passed in when killing
the switch_workspace() effect.
We can simplify the interface to correspond more closely to how
it is actually used and fix these problems:
Remove the actors parameter to plugin->switch_workspace
Remove the events parameter to plugin->kill_effect and rename it to kill_window_effects
Add plugin->kill_switch_workspace
Remove mutter_plugin_manager_kill_effect
Add mutter_plugin_manager_kill_window_effects
Add mutter_plugin_manager_kill_switch_workspace
Remove mutter_plugin_effect_completed
Add mutter_plugin_[minimize/map/destroy/maximize/unmaximize]_completed
https://bugzilla.gnome.org/show_bug.cgi?id=621082
In commit d34ae764769 I switched mutter-window to ask for Raw rectangles
from the X server. This avoided 2 non synchronous and 2 synchronous X
requests per window with damage, per frame; 2 (non-sync) to
create/destroy a temporary region to copy the damage region into, 1 to
request the server to copy the damage region into a our given region and
another to fetch that region back into the client. The problem with raw
events though is that it's possible to DOS the compositor with them.
Instead of receiving an event for every bit of damage this patch instead
asks the server to only report BoundingBox changes to the damage region.
https://bugzilla.gnome.org/show_bug.cgi?id=611838
COGL bug http://bugzilla.openedhand.com/show_bug.cgi?id=2110 results
in pending drawing at the time of cogl_offscreen_new_to_texture() going
to the newly created framebuffer rather than the stage.
This would result in most windows being missing for the first frame
when a new window is mapped.
Work around this by calling cogl_flush() before
cogl_offscreen_new_to_texture().
https://bugzilla.gnome.org/show_bug.cgi?id=618138
The beginning maximization/unmaximization don't go through
start_effect_simple(), so we need to freeze the window
separately.
Change MutterWindow.freeze_count to a signed integer for
consistency with other counts, and so the logic for
checking for errors works properly.
https://bugzilla.gnome.org/show_bug.cgi?id=616546
This changes the way we handle Damage events so instead of getting an
event when the damage region of a pixmap becomes non-empty we now get
sent all damage rectangles and stream those all though to
ClutterX11TexturePixmap using clutter_x11_texture_pixmap_update_area()
For Clutter 1.2, ClutterGLXTexturePixmap was updated so that calls to
clutter_x11_texture_pixmap_update_area are now cheap (glXBindTexImageEXT
calls are now deferred until just before painting) and since
ClutterGLXTexturePixmap is now capable of queueing clipped redraws that
can result in only updating a sub-region of the stage during a repaint
cycle (and using glXCopySubBufferMESA to present the sub-region redraw
to the front buffer) this should improve performance and reduced power
consumption for a range of use cases. (For example viewing a website
that has animated adverts doesn't force the whole screen to be redrawn
for each frame of the advert)
Besides being able to take advantage of glXCopySubBuffer to only update
a small region of the stage the fact that this patch makes Mutter now
request RawRectangles from the X server means we no longer do a
synchronous X request for a complete Damage Region for every window
damaged each frame. This should also improve performance.
CLUTTER_PAINT=redraws can be used to visualize what parts of the stage
are redrawn and with this patch applied I can open a terminal and as I
type I see that only the damaged areas of the terminal are being
redrawn.
In the case where a mutter window is created for an X Window that is
already mapped then we weren't calling mutter_window_mark_for_repair and
so we weren't calling XCompositeNameWindowPixmap e.g. for menu windows.
This doesn't get noticed because as soon as some damage gets delivered
for such windows the pixmap will be named anyway, but if we were to
change how damage is handled this would result in broken menus.
We now call mutter_window_mark_for_repair in mutter_window_new when the
given Window is already mapped.
Although multi-screen support has not been tested and probably
doesn't fully work, the basic setup for multi-screen is that
we have the same list of plugins for all screens, but a different
instance of the plugins for each screen.
To allow plugins to do setup that is screen independent and needs
to occur early in the setup process, we identify a "default plugin
manager" and load (but not start) that plugin manager's plugins
immediately after we know our list of plugins.
That plugin manager is then reused for the first screen we open
and the plugins are started at that time. Separate plugin managers
are loaded and started for any other screens we open.
(A plugin could keep track of whether the screen-independent
setup has been done in a static variable, or it could do everything
in a way that is safe to do repeatedly.)
https://bugzilla.gnome.org/show_bug.cgi?id=615586
Rather than using the plugin objects constructed() method for doing
setup that requires the MetaScreen, add an explicit start() method
that is called after the screen is set.
The reason for this is that this allows plugin objects to be created
early before the bulk of Metacity setup, which then allows plugins
to affect how the setup happens. (For example, to change the way
that preferences are loaded.)
This is an incompatible change, since 'screen' is now not set in the
constructed method, so the plugin API version is bumped.
https://bugzilla.gnome.org/show_bug.cgi?id=615586
Since all windows are now MetaWindows as well as compositor
windows, there's no reason to keep a compositor-specific hash table
mapping from XID to MutterWindow.
This reduces complexity and removes a call to XQueryTree that could
potentially produce a BadWindow error if not error-trapped.
https://bugzilla.gnome.org/show_bug.cgi?id=613398
meta_compositor_process_event uses meta_error_trap_push/pop for
every event processed by meta_compositor_process_event which isn't needed
and can cause performance problems.
https://bugzilla.gnome.org/show_bug.cgi?id=613398
- Specify a minimum version of Clutter-1.2.0
- Remove conditionalizatin and always use Clutter-1.1 framebuffer
API rather than raw GL fbos
- Replace deprecated cogl_material/texture_unref() with
cogl_handle_unref()
https://bugzilla.gnome.org/show_bug.cgi?id=610862
The older code relied on Clutter providing default texture coords for any
layers for which texture coords were not specified, which does not work as
of Clutter 1.1.6 (due to commit 8b950bdc87).
https://bugzilla.gnome.org/show_bug.cgi?id=609657
The CGL_* defines in COGL were always meant to be private and should
have never been exposed in the first place. The API in COGL has been
updated to never require them starting from 1.1, but using the original
GL symbols has always been the intent of the API.
This commit removes the CGL_TEXTURE_RECTANGLE_ARB usage in favour of the
ARB-sanctioned GL_TEXTURE_RECTANGLE_ARB enumeration value.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=607398
