Blender Git Commit Log

Git Commits -> Revision 997b5fe

Revision 997b5fe by Aditya Y Jeppu (master)
September 21, 2021, 08:55 (GMT)
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

Commit Details:

Full Hash: 997b5fe45dab8bd0e2976c8b673e56266134fc80
Parent Commit: fa2c169
Committed By: Richard Antalik
Lines Changed: +893, -13

23 Modified Paths:

/release/scripts/startup/bl_ui/space_sequencer.py (+1, -0) (Diff)
/source/blender/blenkernel/intern/screen.c (+2, -0) (Diff)
/source/blender/blenloader/intern/versioning_280.c (+1, -1) (Diff)
/source/blender/blenloader/intern/versioning_300.c (+16, -0) (Diff)
/source/blender/editors/interface/interface_templates.c (+5, -0) (Diff)
/source/blender/editors/interface/view2d_ops.c (+16, -2) (Diff)
/source/blender/editors/space_sequencer/sequencer_draw.c (+522, -0) (Diff)
/source/blender/editors/space_sequencer/sequencer_edit.c (+4, -2) (Diff)
/source/blender/editors/space_sequencer/sequencer_intern.h (+1, -0) (Diff)
/source/blender/editors/space_sequencer/space_sequencer.c (+13, -1) (Diff)
/source/blender/makesdna/DNA_sequence_types.h (+2, -1) (Diff)
/source/blender/makesdna/DNA_space_types.h (+9, -0) (Diff)
/source/blender/makesdna/DNA_view2d_types.h (+2, -0) (Diff)
/source/blender/makesrna/intern/rna_space.c (+5, -0) (Diff)
/source/blender/sequencer/intern/image_cache.c (+78, -3) (Diff)
/source/blender/sequencer/intern/image_cache.h (+6, -0) (Diff)
/source/blender/sequencer/intern/render.c (+183, -1) (Diff)
/source/blender/sequencer/intern/sequencer.c (+2, -0) (Diff)
/source/blender/sequencer/intern/utils.c (+1, -0) (Diff)
/source/blender/sequencer/SEQ_render.h (+21, -0) (Diff)
/source/blender/sequencer/SEQ_utils.h (+1, -1) (Diff)
/source/blender/windowmanager/intern/wm_jobs.c (+1, -1) (Diff)
/source/blender/windowmanager/WM_api.h (+1, -0) (Diff)
By: Miika HämäläinenLast update: Nov-07-2014 14:18MiikaHweb | 2003-2021