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Fix (unreported): Don't restart prefetching during rendering. 

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
This commit is contained in:
Richard Antalik 2020-05-22 13:05:08 +02:00
parent a1a333a1e9
commit c4edc6f3f7
1 changed files with 4 additions and 2 deletions
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6
source/blender/blenkernel/intern/seqprefetch.c
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@ -521,10 +521,12 @@ void BKE_sequencer_prefetch_start(const SeqRenderData *context, float cfra, floa
seq_prefetch_resume(scene);
/* conditions to start:
* prefetch enabled, prefetch not running, not scrubbing,
* not playing and rendering-expensive footage, cache storage enabled, has strips to render
* not playing and rendering-expensive footage, cache storage enabled, has strips to render,
* not rendering.
*/
if ((ed->cache_flag & SEQ_CACHE_PREFETCH_ENABLE) && !running && !scrubbing &&
!(playing && cost > 0.9) && ed->cache_flag & SEQ_CACHE_ALL_TYPES && has_strips) {
!(playing && cost > 0.9) && ed->cache_flag & SEQ_CACHE_ALL_TYPES && has_strips &&
!G.is_rendering) {
seq_prefetch_start(context, cfra);
}