diff options
author | Aditya Y Jeppu <quantimoney> | 2021-09-21 11:38:15 +0300 |
---|---|---|
committer | Richard Antalik <richardantalik@gmail.com> | 2021-09-21 11:55:04 +0300 |
commit | 997b5fe45dab8bd0e2976c8b673e56266134fc80 (patch) | |
tree | b8813b36decf96908507f6633cf909717bcfa534 /source/blender/sequencer/SEQ_utils.h | |
parent | fa2c1698b077f510175e79adf3dbf3e1602b1030 (diff) |
VSE strip thumbnails
Draw thumbnails as strip overlay. This works for movie and image strips.
To draw thumbnails, this overlay has to be enabled and strips must be
tall enough.
The thumbnails are loaded from source file using separate thread and
stored in cache.
Drawing code uses only images stored in cache, and if any is missing,
background rendering job is started. If job can not render thumbnail,
to prevent endless loop of creating job for missing image it sets
`SEQ_FLAG_SKIP_THUMBNAILS` bit of `Sequence` flag.
To prevent visual glitches during timeline panning and zooming, `View2D`
flag `V2D_IS_NAVIGATING` is implemented. If bit is set, drawing code
will look for set of evenly distributed thumbnails that should be
guaranteed to exist and also set of previously displayed thumbnails.
Due to volatile nature of cache these thumbnails can be missing anyway,
in which case no new thumbnails will be drawn for particular strip.
Cache capacity is limited to 5000 thumbnails and performs cleanup of
non visible images when limit is reached.
ref T89143
Reviewed By: ISS
Differential Revision: https://developer.blender.org/D12266
Diffstat (limited to 'source/blender/sequencer/SEQ_utils.h')
-rw-r--r-- | source/blender/sequencer/SEQ_utils.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/source/blender/sequencer/SEQ_utils.h b/source/blender/sequencer/SEQ_utils.h index 09de7bc67e9..d30a1b2d7ae 100644 --- a/source/blender/sequencer/SEQ_utils.h +++ b/source/blender/sequencer/SEQ_utils.h @@ -34,6 +34,7 @@ struct Mask; struct Scene; struct Sequence; struct StripElem; +struct SeqRenderData; void SEQ_sort(struct ListBase *seqbase); void SEQ_sequence_base_unique_name_recursive(struct Scene *scene, @@ -57,7 +58,6 @@ void SEQ_set_scale_to_fit(const struct Sequence *seq, const int preview_height, const eSeqImageFitMethod fit_method); void SEQ_ensure_unique_name(struct Sequence *seq, struct Scene *scene); - #ifdef __cplusplus } #endif |