This was mainly found in SpriteSizeJob crash reports. In these reports
deleted image buffers were still used to paint the Editor canvas
because the doc was write-locked in the main thread (same thread where
the canvas is painted). This produced a re-entrant lock in the
Editor::onPaint() as we can still read-lock from the same thread where
we write-locked the doc.
With this change we write-lock the doc from the SpriteJob background
thread (not the main thread) only if it's necessary (i.e. when the doc
is not already locked in the main thread, e.g. when running a script).
This makes that the main thread (Editor::onPaint) cannot read the doc
until we finish the whole SpriteJob transaction/Tx.
One fix that this patch includes for #4367 (crash by unhandled
CannotWriteDocException exception) is when we drag-and-drop a tag
border to resize its limits. This is a fix for that case but we don't
know if this include all cases of #4367 crashes (so we cannot close
the issue).
Anyway we have added some try { } catch in cases where it's better to
avoid propagating the exception, e.g. in
MovingSelectionState::onLeaveState() to avoid throwing exceptions in
Editor::backToPreviousState() which might be problematic in several
cases. (Maybe related to #2829?)
This is to fix the appearance of the icon when Windows is configured
with 125% DPI or 175% DPI. In the past we've done something similar
for 150% DPI (713a2eac80) with a 24x24
icon.
Anyway this code is not used anymore, it was for v1.1 when v1.1 and
v1.2 branches were developed at the same time (layer groups feature
was added in v1.2, so v1.1 just moved groups children to the root).
This fixes several problems in MovingPixelsState where hidden layers
were transformed anyway when we switched the visibility of a layer in
this state.
Other fix was tried before in #3254 but we needed the onBefore/After
layer visibility change notifications to make this work properly
(i.e. drop pixels when the visiblity of a layer is changed).
The only drawback at this moment is that changing the visibility of
the non-active layer when we are transforming multiple cels/timeline
range can be confused because we don't have #2144/#2865 implemented
yet.
This bug was originally reported here: https://community.aseprite.org/t/20621
The warning is about using a virtual member function in the destructor
where it can be overridden by a derived class so in this case the
derived version wouldn't be called.
Just testing clang-tidy to see if we can add something in the CI.
Before this fix, an incomplete custom theme or an outdated official
theme could cause a crash during Aseprite startup.
This fix does not alert the artist the problem of the theme.
Simply avoid the crash.
We were incorrectly saving a wrong number of entries for palettes with
more than 256 colors in color2 chunk, anyway it doesn't make sense to
use this chunks as it doesn't support more than 256 colors. So we
removed it for this case.
We've also removed the palette chunk for cases where it's not required
at all, e.g. when we have less than 256 colors and doesn't have alpha
channel, it makes sense to use the color2 chunk as it's smaller in the
output file.
