This crashes with ASAN enabled.
```
==39366==ERROR: AddressSanitizer: memcpy-param-overlap: memory ranges [0x6230000ae848,0x6230000ae85a) and [0x6230000ae851, 0x6230000ae863) overlap
```
The problem was that in direct_link_id_restore_recalc, recalc_undo_accumulated
should contain the changes from the target state to the current state. However
it had already been cleared at that point, to start accumulating changes up to
the next undo push.
Delaying the clear of this flag seems like the obvious solution, but it's hard
to find the right place for that (if there is one). Instead this splits up the
flag into two separate variables.
Reviewed By: mont29
Differential Revision: https://developer.blender.org/D7402
* Implemented the algortihm that would merge vertices to the weighted
center between them.
* Exposed the merge threshold to the user.
The new default tolerance is 0.0001 (versionning code ensures that
previous default value remains in use to avoid any change in existing
files).
Review and minor changes/cleanups from Bastien Montagne (@mont29).
Removal of 'Translation' checkbox. Enable translation options when selecting non-English languages.
Differential Revision: https://developer.blender.org/D7210
Reviewed by Brecht Van Lommel
These changes only have an effect when the experimental Undo Speedup preference
is enabled.
* For DEG_id_tag_update, accumulate recalc flags immediately before the undo
push happens instead of afterwards. Otherwise the undo state does not
contain enough flags, and the current state may contain too many flags.
This also means we call DEG_id_tag_update after undo with the accumulated
flags to ensure they are flushed to other datablocks.
* For undo, accumulate recalc flags in id->recalc and clear accumulated flags
immediately. Not clearing would cause circular behavior where accumulated
flags may never end up being cleared.
This matches what happens after an undo push where these are also cleared,
indicating that the undo state and current in-memory state match exactly.
* Don't change id->recalc of identical datablocks, it should not be needed.
There is one exception for armatures where pointers across datablocks
exist which otherwise would cause problems. There may be a better solution
to this but it seems to work in agent 327 production files.
* This contains a change in undofile.c to avoid detecting all datablocks as
changed for the first of the two undo steps, where we restore to the state
of the last undo push before going to the one before.
Without this the whole system is much less efficient. However this is unsafe
in the sense that if an app handler or operators edits a datablock after an
undo push, that change will not be undone.
It can be argued that this is acceptable behavior, since a following undo push
will include that change and this may already have unexpected side effects.
Ref T60695
Differential Revision: https://developer.blender.org/D7339
Other types of datablocks pointing to UI datablocks is unsupported, so
there is no need to store them in fd->libmap. With the experimental undo
speedup enabled preserving such pointers was done. But it didn't work in
2.82 and such pointers are easily lost in cases other than undo.
Differential Revision: https://developer.blender.org/D7329
Feature can be enabled or disabled in timeline view menu item "Show F-Curves".
Author a.monti
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D7205
Note this only changes cases where the variable was declared inside
the for loop. To handle it outside as well is a different challenge.
Differential Revision: https://developer.blender.org/D7320
The `BKE_animsys.h` and `anim_sys.c` files already had a an "AnimData
API" section. The code in that section has now been split off, and
placed into `BKE_anim_data.h` and `anim_data.c`.
All files that used to include `BKE_animsys.h` have been adjusted to
only include the animation headers they need (sometimes none).
No functional changes.
There is no guarantee that depsgraph is ran between two undo steps, so
when re-using an existing data-block we should never wipe completly its
recalc flags, but instead complement them with new ones from accumulated
'storage' as needed.
Follow up of b2ee1770d4 and 10c2254d41, part of T74432.
Now the area and region naming conventions should be less confusing.
Mostly a careful batch rename but had to do few smaller fixes.
Also ran clang-format on affected files.
The files are now split up into the following sections:
- `BKE_anim_path.h` and `anim_path.c` for path/curve functions.
- `BKE_anim_visualization.h` and `anim_visualizationanim_path.c` for
animation visualization (mostly motion paths).
- `BKE_duplilist.h` for DupliList function declarations. These were
already implemented in `object_dupli.c`, so they were rather out of
place being declared in `BKE_anim.h` in the first place.
No functional changes.
