Implement the wl_surface.set_buffer_transform request. This includes
tracking the double-buffered buffer transformation parameter and making
the gl renderer able to handle transformed buffers.
Backends may move surfaces to different planes, in which case damage is
generated in the primary plane. This damage is usually passed to the
renderer, but in some cases the backend may decide to not render
anything (that's the case when drm compositor scans out a client
buffer). In that case the damage on the primary plane would be
discarded, leading to artifacts later.
This patch makes the backend's responsibility to clear the damage on
the primary plane, so that unrendered damage is kept for as long as
necessary.
Move fields current_buffer and buffer_damage out of weston_output into
gl_output_state, since they are actually specific to the renderer.
Also bring back the previous_damage field so that the screenshooter
can get the damage for the previous frame in a renderer independent
way.
This moves the surface color state into gles2-renderer. To do this it
adds two new weston_renderer functions. create_surface to be able to
create per-surface renderer state, and surface_set_color to set the
color of a surface and changes it to a color surface.
When a surface is on a non-primary plane (overlay), we do not need to
keep the GL texture up-to-date, since we are not using it. Avoid calling
glTex(Sub)Image2D in that case, and accumulate the texture damage
separately.
This is especially useful for backends, that can put wl_shm buffers into
overlays.
The empty damage check has to be moved from surface_accumulate_damage()
into gles2_renderer_flush_damage(), because it really needs to check the
accumulated damage, not only the current damage. Otherwise, if a surface
migrates from a plane to the primary plane, and does not have new
damage, the texture would not be updated even for accumulated damage.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Instead of hardcoding drm-backend.so as the default if environment
presents neither Wayland nor X11, have a ./configure option to change
it. It still defaults to drm-backend.so, if not given.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Add the concept of debug key bindings, that are bindings that activate
debug features in the compositor. The bindings are added to a list in
the compositor, but the triggering them is left to the shell.
On the shell side, a global debug key binding is added. When the user
presses mod-shift-space, the shell will invoke the debug bindings based
on the next key press.
This also converts the debug shortcuts for repaint debugging, fan
repaint debugging and the hide overlays shortcut in compositor-drm to
use the new infrastructure.
The following sequence:
wl_surface::attach(s, b, 1, 2)
wl_surface::commit(s)
wl_surface::commit(s)
would actually result in the surface getting moved by (2,4) as the
pending attach delta wasn't reset on commit, only by another attach.
This only shows up on single-buffered surfaces.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Every single frame, we were calling the flush_damage handler in the
renderer. For GLES2 with subimage, this wasn't too bad as we'd never
call glTexSubImage2D, but without it, we'd upload the entire frame
through glTexImage2D every time.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Culling of the repaint of a surface behind an opaque surface on the
same plane was broken by commit 547149a9 [1]. The idea of that commit
is that the damage obscured by an overlay would remain on the primary
plane damage and be repainted when the overlay moved. However, in the
case the two surfaces are on the same plane, the opaque one is not
obscured, so it ends up being repainted.
This commit adds an opaque field to struct weston_plane, that is built
incrementally when accumulating damage. The opaque region of surfaces
on the same plane are removed from the plane's damage, restoring the
previous culling behavior. But since damage behind opaque region of
other planes is maintained, the bug solved in the mentioned commit is
not regressed.
https://bugs.freedesktop.org/show_bug.cgi?id=56537
Partial repaints have been broken since the introduction of the atomic
surface updates. The problem was that surface_commit would set the
geometry dirty flag unconditionally, causing transform updates on every
frame which would in turn cause weston_surface_damage_below() to damage
the whole surface area.
This patch changes this so that flag is only set if the pending buffer
has a different size, the location of the surface changed or the opaque
region changed.
Note that changing the opaque region will cause a full repaint of the
affected surface, because of the transform update.
https://bugs.freedesktop.org/show_bug.cgi?id=56538
When tiling window managers resize a non-resizable window they're violating
ICCCM. Not some hippie-community standard like EWMH, but ICCCM, which is
about as old and sacred as the constitution. If they want to force a window
to be a size it wasn't designed for, at least they could have the decency to
reparent the client window into a bigger containing window of whatever size
they think it should be. But apparently ICCCM compliance is too much to ask.
Anyway, all that just to say that it's really not our fault when we get an
enter event with coordinates outside the valid output region. But we'll
clip it anyway and work around mis-behaving tiling WMs.
Rather than delivering touch events directly to clients, we'll now
call through the touch grab handler. The default handler (in
wayland-server) will deliver these events the same way they worked
before.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
libwayland-server was changed to emit the new drag icon signal instead
of faking an attach event with a NULL buffer so this has to be done on
this side.
event-test assumes, that even without the very first wl_surface.attach
(and commit), the surface will have infinite (previously undef) input
region. event-test simply has test-client to create a wl_surface, and
then it forcefully sets its position and size, and assumes the input
region is now the full surface, so that notify_motion() will hit it.
Change Weston to initialize the input region to infinite, instead of
empty.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Apply wl_surface.frame request only on the next wl_surface.commit
according to the new protocol.
This makes it explicit, which repaint actually triggered the frame
callback, since commit schedules a repaint. Otherwise, something causing
a repaint before a commit could trigger the frame callback too early.
Ensure all demo clients send commit after wl_surface.frame. Note, that
GL apps rely on eglSwapBuffers() sending commit. In toytoolkit, it is
assumed that window_flush() always does a commit.
compositor-wayland assumes renderer->repaint_output does a commit.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
In weston, the wl_resource:data field for a wl_surface object always
contains struct weston_surface *, never struct wl_surface *.
Even though this is just a cosmetic fix, it should reduce confusion.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Make input region double-buffered as specified in the new protocol.
While doing it, get rid of the undef region code, and instead use a
maximum sized real pixman region. This avoids special-casing regions
that might sometimes be undef.
As the input region is now usable by default instead of undef,
weston_surface_update_transform() does not need to reset the input
region anymore.
weston_surface_attach() no longer resets the input region on surface
size change. Therefore, also weston_seat_update_drag_surface() does not
need to reset it.
Update toytoolkit to set input region before calling wl_surface_commit()
or swapBuffers (which does commit).
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Make wl_surface.set_opaque_region double-buffered as required by the new
protocol. Also, do not reset the opaque region on surface size changes
anymore. Only explicit requests from the client will change the region
now.
In clients, make sure commit happens after setting the opaque region.
Mesa does not need a fix, as it never touches the opaque region.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
This change depends on the Wayland commit
"protocol: double-buffered state for wl_surface".
Implement double-buffering of damage in the compositor as required by
the new protocol.
Ensure all Weston demo clients call wl_surface_commit() after
wl_surface_damage().
Mesa does not need a fix for this, as the patch adding
wl_surface_commit() call to Mesa already takes care of damage, too;
Mesa commit: "wayland: use wl_surface_commit()"
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
This change depends on the Wayland commit
"protocol: double-buffered state for wl_surface".
Clients are now required to issue wl_surface.commit for the
wl_surface.attach to take effect.
While changing this, change the surface argument to
weston_surface_attach() from wl_surface into weston_surface, for
consistency.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Also make all the callers of weston_surface_assign_output() update the
transform instead. This makes sure that when the surface is assigned an
output its bouding box is valid.
This fixes a bug where a newly created surface would have a NULL output
assigned. This would cause weston_surface_schedule_repaint() to not
schedule a repaint, preventing the surface to be shown until something
else caused a repaint.
This is a more generic fix for the issue solved in 4f521731 where
damage obscured by overlays could be lost in one of the output buffers
due to rapid move of a surface in an overlay plane.
This changes the renderer so it keeps track of the damage in each
buffer. Every time a new frame is drawn, the damage of the frame is
added to all the buffers and the rendered regions are cleared from
the current buffer's damage.
Have only one text_model_factory instead of one per seat.
This commit also introduces destruction of an input method when the
corresponding seat is removed.
Signed-off-by: Jan Arne Petersen <jpetersen@openismus.com>
When accumulating damage in the surfaces into the primary plane damage,
regions obscured by the opaque region would be excluded. This causes a
bug when a redraw of a surface is obscured by an opaque surface on
another plane. The drawing to the former surface is clipped but
its damage is never added to the primary plane and is just lost. Moving
the opaque window later reveals the not-up-to-date content below it.
We can now load any number of general modules, and the shell and xwayland
are just two of them. We continue to use the mechanism for testing but
custom input drivers or logging mechanisms, for example are other use cases.
We rename it flush_damage() as it's the point where we update our rendering
API source (eg, the gles2 texture) according to the accumulated damage,
if necessary.
We move the EGL and GLES2 output repaint code into a new gles2-render.c
file. The eglMakeCurrent, glViewPort, surface loop etc was duplicated
across all backends, but this patch moves it to a new file.
surface_accumulate_damage() will call surface_compute_bbox() with the
extents of the surface damage region, for transformed surfaces only. If
there is no damage, surface_compute_bbox() will round up the empty
rectangle to a 1x1 rectangle. Triangles are produced for this 1x1
rectangle intersected with the surface.
The problem showed up with the triangle fan debug, where some seemingly
garbage pixels showed up relative to rotated surfaces.
Fix this by explicitly checking, that the area, for which a bounding box
is being computed for, is not zero.
Note, that the bbox will also be empty if only one of width and height
is zero. We do not paint things with zero thickness.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Rob Clark <rob.clark@linaro.org>
The intersection of two rectangles is guaranteed to be convex. Therefore
we do not need a center vertex for the triangle fan, we can simply use
the whatever first vertex the intersection polygon has. This reduces the
number of triangles, while still painting the exact same area.
While at it, emit_vertex() nested function is factored into the
for-loop, since that is the only calling site left.
Comments are updated to reflect the changes, and some unrelated comment
fixes are in repaint_region().
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Rob Clark <rob.clark@linaro.org>
Jan Arne Petersen
Ander Conselvan de Oliveira
John Kåre Alsaker
Pekka Paalanen
Kristian Høgsberg
Daniel Stone
Matt Roper
Tiago Vignatti
Philipp Brüschweiler