Between assign_planes() and pnode_update_late(), the pnode's plane may
not yet be up to date. This leads to the visible region being incorrectly
calculated for paint nodes beneath a paint node that changes planes. Their
visible regions will still contain a cut out for the node that no longer
occludes them.
However, we place damage on nodes beneath a node that changes planes in
order to redraw the region beneath a node that moves from the primary to
non-primary plane.
The gl-renderer clips to a paint node's visible region when rendering it,
so this accidental cut-out masks away all the damage and leaves us with
a mess.
Fix this by using the correct plane in the visibility calculation.
Fixes#821
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
If coverage and power status are the same, we should prefer a primary
backend over a secondary one.
Fixes#818
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
When an output power state changes, it may become or no longer be the
best primary output for a view.
Fixes#819
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
If our primary output is turned off, we won't get frame events, so let's
try really hard to prioritize a turned on output with coverage.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
The counterpart to weston_surface_is_unmapping(). This is valid for the
duration of processing the surface commit.
Signed-off-by: Daniel Stone <daniels@collabora.com>
If a surface has already been mapped, just return early out of
weston_surface_map(), rather than firing the map signal and rebuilding
the view list.
Signed-off-by: Daniel Stone <daniels@collabora.com>
We already have these for global coordinates, now we have them for
surface coordinates too. In addition to removing some unsightly
unadorned coordinate usage, this also adds appropriate coordinate space
id checks at runtime.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is a tricky bit of code and we use it in two places. Let's make a
single implementation.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This avoids spreading around the knowledge that the primary backend is
the first backend on weston_compositor::backend:list.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Let weston_compositor_load_backend() return a backend pointer and remove
the backend pointer from struct weston_compositor.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Releasing the buffer reference here works because the backend has seen the
surface and has updated keep_buffer if necessary. With multiple backends
the assumption breaks. The same surface may be visible (now or later) on an
output from another backend. This backend has not seen the buffer yet so it
cannot update keep_buffer.
As a result, the reference is released to early. A surface that is rendered
on a secondary backend first can no longer be placed on a plane on a DRM
backend.
To avoid this, always keep the buffer reference until it is replaced when
multiple backends are involved.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
All backends add themselves to weston_compositor::backend_list now.
Drop the workaround that catches unconverted backends that still set
weston_compositor::backend.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Before loading a backend, clear the weston_compositor::backend pointer
to check whether the backend supports multi-backend operation and adds
itself to the weston_compositor::backend_list.
Keep weston_compositor::backend pointing to the last loaded backend
either way, to allow the calling compositor code to store it away for
later, to check whether a head belongs to a given backend in the output
configuration code. This workaround can be removed after all backends
are converted to be multi-backend aware.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
In preparation for multi-backend support, determine the presentation
clocks that are supported by all backends.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
In preparation for multi-backend support, start/flush/cancel repaint on
all backends by looping over the weston_compositor::backend_list.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
In preparation for multi-backend support, add a list of backends to the
weston_compositor structure. Until backends are converted, this list
just contains the single weston_compositor::backend. Keep that pointer
for now, until the conversion is complete.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Extract the finish frame timestamp code and the call to
weston_output_finish_frame() into a new helper function
weston_output_finish_frame_from_timer() that can be reused
by the other timer driven backends sharing the same logic.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Extract pipewire_output_arm_timer() into libweston so it can be reused
by the other timer driven backends that use the same delay logic.
Call the shared function weston_output_arm_frame_timer().
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
There are many times when we want to set a global position with a surface
offset added.
It's a fairly nasty operation, and most places in the code currently do
it naively, ignoring the painful existence of freeform window rotations
and other complex transforms that could be in play (but probably aren't)
Add a helper for this and convert existing usage.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Allow passing NULL to monitor string in order to set the default
"unknown" strings. This allows a head to be initialized with the default
strings, meaning that it will no longer be mandatory for a backend to
call weston_head_set_monitor_strings(). In DRM-backend case this makes
future changes more convenient.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
We never expected these strdups to fail, and things tend to assume these
fields are not NULL (except serial_number).
Use xstrdup to ensure that a catastrophic OOM is immediately obvious.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Initialize no-op color manager in weston_compositor_backends_loaded()
if weston_compositor_load_color_manager() was never called.
This makes weston_compositor_load_backend() live up to its name and
prepares it to be called multiple times.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Move the presentation clock selection loop into
weston_compositor_set_presentation_clock() and refactor
weston_compositor_backends_loaded() to make it possible
to add more functionality.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Since we use paint nodes to track damage, we have to be very careful to
make sure that we never have paint nodes that aren't actually being
displayed on their outputs.
Shells may move views to invisible layers (minimized_layer, inactive_layer)
and this currently leaves the paint node alive but not visible on its
output.
When this happens, the paint node's previous visible region is left
undamaged, and the paint node is removed from processing.
Let's delete paint nodes when their views change layers, thus creating
damage for their full visible region.
This may create excess damage if the paint node moves between two visible
layers, but this is probably far less harmful than leaving pieces of
invisible views on screen.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Commit 43b59786 errantly claimed that paint_node_damage_below() needed to
damage all planes because it's used when moving paint nodes between
planes.
This is wrong because the destination plane will receive damage correctly
from paint_node_update_late() when the node's visible region is added to
its damage.
Leave the rest of that commit's changes, but make it once again only
damage the plane the node is currently on.
The problem this caused is easily seen by turning on triangle fan debug
and moving the mouse. Extra damage is generated beneath the cursor plane.
Fixes 43b59786
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Let backends declare the presentation clocks they can use with a
new bitfield weston_backend::supported_presentation_clocks and set
presentation clock after loading the backend in the compositor.
Make weston_compositor_set_presentation_clock() internal and replace
weston_compositor_set_presentation_clock_software() with an exported
weston_compositor_backends_loaded(), which is called by the compositor
after the backend is loaded.
In the future, this can be extended to determine the subset of clocks
supported by all backends.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Whenever a view is moved, we should schedule a repaint for the outputs
the view is on. This avoids users having to do it by hand every time
they change something. There is no change in determinism of behaviour
(e.g. 'I can reconfigure views as often as I like and it won't take
effect until I schedule a repaint' isn't true, because output repaints
might happen for reasons outside your control).
Signed-off-by: Daniel Stone <daniels@collabora.com>
This list walk is broken, the intent was to walk the tail of the list
starting from the currently held node - but that is not what happens.
Instead, walk the list backwards and stop a the held node.
Also, paint_node_damage_below() is used when moving paint nodes between
planes, and in these cases we definitely don't want to limit damage to
the current plane.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Currently this isn't calculated properly, and results in clipping away
important damage when a client moves from a non-primary plane to the
primary plane.
Instead of trying to fix it, let's just throw it away.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
When flush_damage() is called, the output to be repainted next is
already known. Pass it along into the renderer, which can make use
of this information:
The GL renderer can get a better idea which SHM surface textures
actually have to be updated, in case a surface can be put on a plane
on one output, but not another.
A future Vulkan renderer could record texture uploads into an output
specific command buffer.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
The ensure_single_mode() helper replaces an output's single mode.
Extract it into libweston so it can be reused by the VNC backend,
and rename it to weston_output_set_single_mode().
At the same time, set the the previously missing
WL_OUTPUT_MODE_CURRENT flag on the new mode.
Fixes#758
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
We can now have overlapping outputs, so we can remove the checks that
protected us against this previously.
We may want to consider adding checks for discontinuities in the future
though, so leave a brief comment where the checks used to be.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
The primary_plane is currently shared amongst all outputs, and is the last
barrier to having overlapping outputs.
Split it up and make it per output instead.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
The color-metadata-errors test inits outputs with a NULL compositor, and
makes a compositor that's entirely 0s except for the bits it's interested
in.
This makes a mess in a future where the primary_plane is split up per
output, as initializing the primary plane tries to add it to the
compositor's plane_list.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Remove plane->damage and instead accumulate damage on paint
nodes.
This is a step towards allowing multiple overlapping outputs.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Tracking the view's plane in the paint node in this way is a step towards
inflicting plane damage from paint node update during the output repaint,
instead of manually doing weston_view_damage_below().
We remove view->plane entirely and do all access through pnodes.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
We used to do this through a byzantine path involving the view's plane
transitioning from NULL to primary - but that doesn't work very well
when we want to track the plane in the paint node, because the paint
node will never have a NULL plane state.
This can be removed later when we track damage on paint nodes.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Now that we have visibility for views, we can clip that to an output
and store it in paint nodes.
This requires us to split the paint_node_update() function into two,
one for things that need to be done before assign_planes() and
one for after.
This will eventually be useful for tracking damage with paint nodes,
as we'll need to damage a paint node's entire visible area for
some operations.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is kind of confusing, as the visibility calculation is just a side
effect of the damage accumulation.
At the expense of walking the paint node list another time, make this
a separate function.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Later, we'll want to use the visible region for damage tracking in
paint_nodes. For now, we can use it in the renderers where they've been
calculating it independently to draw paint nodes.
We still can't remove view->clip entirely, because
weston_view_damage_below() may be called before the first render of
a view, when its visible region hasn't been calculated yet. The
clip is empty at that point, which allows weston_view_damage_below()
to "work".
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
This is when they need to be up to date. And it makes it so that
view_ensure_paint_node() only does what the function name indicates.
Also, later when we tie damage tracking to paint nodes it will make
more sense to update them just in time for the output being repainted.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
In the future we'd like to have multiple overlapping outputs.
weston_output_damage() currently adds damage to the output's coordinates
on the primary plane. This plane is shared between all outputs, so it
would result in damaging more than the intended output.
Eventually, plane damage will go away and be replaced by paint node damage,
and damaging the entire output would involve adding damage to a list of
paint nodes.
Instead, use a flag to indicate the output must be fully redrawn, and add
the damage during the repaint loop.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
Right now every backend clears output damage from the primary plane when
it repaints. Instead of having this same operation spread across all
the backends, just do it in the core instead.
In the future, we want to remove damage tracking from the primary plane
entirely, and this is a small step in that direction.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
We've just made this impossible, so we can now clean up all the TODO
locations.
I've only turned some of them into assert()s, because they're all mostly
in the same place.
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
