Add a frame buffer backend using pixman to render to fbdev.
This has been tested against nouveaufb but nothing else. Much of the code
came straight from the rpi backend (and copyright has been attributed
accordingly).
The behaviour of this backend on less modern frame buffers has yet to be
tested.
The refresh rate is calculated from the frame buffer's metadata. Every frame
is finished in synchrony with the refresh rate.
Frame buffer devices are currently specified on the command line (or using
the default of /dev/fb0); udev could be used in future to enumerate them.
pixman is used for compositing, and a suitable pixman format is built from
the frame buffer's metadata. This doesn't support the full range of
frame buffer formats, but does support varying BPPs of RGBA and ARGB. That
should be enough for now.
The following are not currently supported:
• FOURCC
• Non-packed formats (interleaved, planes, etc.)
• Non-true-colour formats (monochrome, greyscale, etc.)
• Big-endian formats (with component MSBs on the right)
• Non-RGBA and non-ARGB formats
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
The drm planes (sprites) only support translation and scaling. Now that
we have matrix.type, we can just look there to see if the transform is
compatible with kms.
Introduce several matrix transform types and track type for matrix.
Could be usefull for activating some fastpath that depends on some
transform type.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Before, cairo-util.h would combine pixman and cairo includes. X11 and
Wayland compositors uses this to load an image as a pixman_image_t but are
forced to include cairo headers. Clients use load_cairo_surface to
load images as cairo_surface_t's, but are forced to include pixman.h.
We move the load_image pixman prototype to its own header, so compositors
can get at the pixman prototype without including cairo.h and clients
can include the cairo based function without including pixman.h.
The X11 backend uses a shadow buffer to be able to support transformed
outputs. However, this belongs in the renderer, since otherwise this
code would have to be copied into every backend that uses the pixman
renderer and supports transformed outputs.
The Android backend has been fairly unused, since we do not have
projects actively using it. It gets basic build testing as part of the
normal build, but runtime testing it takes a considerable effort, and so
I have not done that in a long time. The code is slowly rotting, and
with new emerging backends it starts to be a burden, since it cannot use
udev, but needs evdev.
Therefore to ease Weston going forward, remove the Android backend. If
someone misses it, it can still be found in the stable 1.0 branch, and
of course resurrected from git history if someone wants to put in the
effort and maintain it.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
The list became stale probably when the lock_layer was introduced. Now
one less (ab)user of weston_surface::link.
Also add a comment on screensaver_configure(), that it is (and has been)
broken for pre-started screensavers.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
To be able to have a fullscreen surface on one output, and interact with
surfaces on another output, don't lower the fullscreen layer on
activate.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
The input region of the black surface placed under the fullscreen shell
surface did not have a specified input region. Because the initial input
region of a surface is infinity, no other surface on any other output
could get any focus.
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
In particular if the hash table lookup fails and returns NULL then that value
would be passed into weston_wm_window_schedule_repaint which does not accept a
NULL value.
weston_compositor::read_format is in Pixman values now, so comparing to
a GL value does not work. Compare to the right value.
This fix affects only the log output of the GL renderer.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
When --use-shm is passed to weston and x11 backend is active,
it will use SHM surfaces with pixman renderer instead of EGL
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
This renderer could be used when there's no graphic accelerator available,
for example in (future) KMS and fbdev backends.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
These formats are used by pixman renderer for framebuffer surface, without
this patch screenshoter produces empty image.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Call drm_output_init_egl() instead of duplicating the gbm surface and
gl renderer state initialization code.
Note that this makes error handling a bit worse. Before, if we failed
to allocate a gbm surface we could still recover. Failing the renderer
state creation would lead to inconsisten state. Now we end up in
inconsistent state on both cases.
At this point, we reallocated the gbm surface, but we don't have an
fb with the right size to use. If we're going to a larger mode, the fb
would be too small and the mode set would fail. Besides, the repaint
logic will already do a mode set if necessary, so rely on that instead.
When an output suffers a mode switch, it is possible that a pointer
was inside the old output area but falls outside of it with the new
size. In that case, move the cursor to the output's bottom-right
corner. Otherwise, there's a crash in clip_pointer_motion().
After a mode switch, the output region and transformation matrix need
to be updated. The call to weston_output_move() would do the former but
not the latter, but calling that when the output remains in the same
coordinate doesn't make much sense. Instead, update this state and the
transformation matrix in weston_output_mode_switch().
We want to make sure that the matrix symbols are exported from weston and
that modules get them from there. To do that, we pull matrix.[ch] out of
libshared and back into weston. calibrator now also links to matrix.[ch]
and we add a IN_WESTON define to enable the WL_EXPORT macro when compiled
inside weston.
Trying to create a ARGB framebuffer for scanout results in EINVAL when
trying to queue the pageflip. This patch overrides the format we pass
to addfb2 in case of primary buffers like we do for sprites.
Since we always have to inspect and override the format, don't try to
look up the format in drm_fb_get_from_bo(). Instead return format from
drm_output_check_scanout_format().
Rename drm_surface_format_supported() to drm_output_check_sprite_format()
and make it follow the same convention.
We started scanning out ARGB surfaces in commit e920941032.
Since the call to drmModeSetPlane() fails with EINVAL if the supplied
fb has an unsupported format (which is the case of ARGB8888), the fb
format needs to be overridden.
This avoids calling weston_surface_set_position twice on the same surface. The
second call has no effect in many cases because sx and sy
are usually zero on this path.
This change now means that any sx/sy values passed into ::attach will be
ignored on the first attach for popup surfaces. This similar to the behaviour
for other surface types.
Philip Withnall
Scott Moreau
Kristian Høgsberg
Quentin Glidic
Vasily Khoruzhick
Ander Conselvan de Oliveira
Pekka Paalanen
Jonas Ådahl
Rob Bradford