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While investigating T76274, I found crash scenario when playhead is near end
frame and moving a strip. It is not as easy to reproduce, about 5% success
rate, and it will be even harder after rB4066c921fbe5. Exact cause wasn't
identified yet.
I wanted to disable prefetching during modal operator execution in VSE, but
currently I don't have any signalling method in place. Checking for G.moving
seems to resolve this problem, but it doesn't adress root cause of bug.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D7820
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This bug is not really visible for user. When end frame is reached by
prefetching thread, it doesn't stop and keeps on getting images from
cache.
Add chech for this situation and simplify logic involved in suspending,
so it's easier to read.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D7757
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Prefetching is stopped in BKE_sequencer_cache_cleanup, but is restarted quickly.
Prefetching has negative effect on performance while rendering.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D7751
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Stop prefetch jobs before undoing.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D7633
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Disable (skip) preftching scene strips if they target 3D scene.
Try to continue prefetching complete frame if disk cache images are found.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D7514
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`BKE_sequencer_prefetch_get_original_sequence()` didn't look in metas
and returned NULL. This caused crash in disk cache that was trying to
read seq->name.
Add function that will look in meta strips recursively and condition
that seq must not be NULL.
Reviewed By: brecht
Maniphest Tasks: T76033
Differential Revision: https://developer.blender.org/D7597
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Make sure depsgraph was updated before evaluating the animation.
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D7467
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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.
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Note that `BKE_library.h`/`library.c` were renamed to
`BKE_lib_id.h`/`lib_id.c` to avoid having a too generic name here.
Part of T72604.
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Fix T70194: Prefetch freezes Blender in some cases
- Initialize depsgraph in isolated bmain struct.
- Fix prefetching range (forgot in initial prefetch commit).
- Fix crash - Add check if prefetch job is initialized and running.
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D5899
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When enabled prefetching(preview panel>view settings), a pernament running job
is created, that will render frames in the background until the cache is full.
If the cache is not filled fast enough, prefetch job suspends itself
at the last moment and will wait until it has chance to "catch up".
Effectively this will decouple rendering to separate thread, so rendering
itself is a bit faster.
Cache recycling behavior will be changed to "free furthest frame to the left
of playhead if possible, otherwise rightmost frame".
Reviewed By: brecht
Differential Revision: https://developer.blender.org/D5386
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