When dragging files on the desktop, the cursor image might be just too
big for the cursor plane, in which case we need to abandon hardware
cursors for a brief moment and use a software cursor. Once the files
have been dropped and the cursor image is small enough, we can go back
to using hw cursors.
BUG: 424589
Currently, if there is no pointer, only the hardware cursor will be
hidden. If the software cursor is forced, you are going to see a dead
immovable cursor.
If an output is rotated, we will compute a transform matrix for the
cursor plane to rotate its contents.
In order to compute that matrix we need the rect of the cursor in the
device-independent pixels, the scale factor and the output transform.
The problem is that we provide a rect of the cursor in the native
pixels. This may result in the cursor being partially or fully clipped.
CCBUG: 424589
If a cursor animation is driven purely by frame callbacks and kwin
uses hardware cursors, the cpu usage may spike to 100%.
This change addresses that issue by sending frame callbacks after a
compositing cycle has been performed.
Currently, flip output transformations in the software fallback code
path are equivalent to normal rotate output transformations.
This change implements flip output transformations according to the
wl_output spec.
Currently, when the DRM platform uses cursor planes, the cursor on
a rotated output may be cropped because the math behind the current
cursor transform matrix is off.
In order to fix the cropping issue, this change replaces the current
cursor transform matrix with the core part of the surface-to-buffer
matrix, which was written against the wl_output spec.
BUG: 427605
CCBUG: 427060
Currently, every time compositing is restarted, both the gbm and the egl
streams backend will re-obtain the EGLDisplay object.
This is wrong because the core assumption is that the EGL display doesn't
change once it has been obtained.
On some devices, the GPU nodes are also added as /dev/dri/cardX, they
are not useful for KMS purposes and does not have display resources.
If we encounter such cards, then skip them.
Uses a setter and clear method pattern rather than having the code
repeated.
Instead of keeping a QPointer, now we are a QObject and we get notified
about destruction intention directly, so we can clear the pointer when
necessary.
Summary:
Notify the driver about the parts of the screen that will be repainted.
In some cases this can be benefitial. This is especially useful on lima
and panfrost devices (e.g. pinephone, pinebook, pinebook pro).
Test Plan:
Tested on a pinebook pro with a late mesa version.
Basically I implemented it, then it didn't work and I fixed it.
Maybe next step we want to look into our damage algorithm.
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.
In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
Otherwise we'll show a dangling cursor but otherwise the cursor will be
updated by other code paths, so we end up with a weird cursor in the
middle of the screen that doesn't move.
It is possible for updateOutputs to be called when a pageflip is pending.
Freeing a DrmOutput with a pending pageflip is not allowed (see ~DrmOutput assert - the page flip handler will be called on the freed memory, possibly leading to use-after-free).
This works around the problem by delaying the destruction with teardown().
BUG: 422460
In atomic setting mode, when external display tears down, it will blank
crtc with dump buffer by legacy api, then re-plug the external display,
the blank can not be removed. We think the blank is not needed in atomic
mode setting.
Signed-off-by: Chaojiang Luo <chaojiangluo@163.com>
We don't need to bind disabled outputs to surfaces that overlaps them.
This prevents error down the line and warnings about ignoring surface.enter events with Qt.
BUG: 419749
In previous code we used to update/show cursor even when the pointer
device was present, e.g mobile device. Guard it behind the cursor
enabled check.
BUG: 418977
FIXED-IN: 5.19.0
