[Bf-blender-cvs] [e16c786022c] blender-v2.92-release: Fix T83267: Crash prefetching scene strip in meta strip
Richard Antalik
noreply at git.blender.org
Mon Jan 25 05:08:38 CET 2021
Commit: e16c786022c48d9679ea306504c06ac25677e553
Author: Richard Antalik
Date: Mon Jan 25 05:03:15 2021 +0100
Branches: blender-v2.92-release
https://developer.blender.org/rBe16c786022c48d9679ea306504c06ac25677e553
Fix T83267: Crash prefetching scene strip in meta strip
Scene strips can't be prefetched and seq_prefetch_do_skip_frame()
should check if scene strip is in timeline. But it did not recurse into
meta strips, which resulted in crash.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D9999
===================================================================
M source/blender/sequencer/intern/prefetch.c
===================================================================
diff --git a/source/blender/sequencer/intern/prefetch.c b/source/blender/sequencer/intern/prefetch.c
index 6deea305224..b0e9e3c5003 100644
--- a/source/blender/sequencer/intern/prefetch.c
+++ b/source/blender/sequencer/intern/prefetch.c
@@ -55,6 +55,7 @@
#include "SEQ_prefetch.h"
#include "SEQ_render.h"
+#include "SEQ_sequencer.h"
#include "image_cache.h"
#include "prefetch.h"
@@ -358,18 +359,23 @@ void seq_prefetch_free(Scene *scene)
scene->ed->prefetch_job = NULL;
}
-static bool seq_prefetch_do_skip_frame(Scene *scene)
+/* Skip frame if we need to render 3D scene strip. Rendering 3D scene requires main lock or setting
+ * up render job that doesn't have API to do openGL renders which can be used for sequencer. */
+static bool seq_prefetch_do_skip_frame(PrefetchJob *pfjob, ListBase *seqbase)
{
- Editing *ed = scene->ed;
- PrefetchJob *pfjob = seq_prefetch_job_get(scene);
float cfra = seq_prefetch_cfra(pfjob);
Sequence *seq_arr[MAXSEQ + 1];
- int count = seq_get_shown_sequences(ed->seqbasep, cfra, 0, seq_arr);
+ int count = seq_get_shown_sequences(seqbase, cfra, 0, seq_arr);
SeqRenderData *ctx = &pfjob->context_cpy;
ImBuf *ibuf = NULL;
/* Disable prefetching 3D scene strips, but check for disk cache. */
for (int i = 0; i < count; i++) {
+ if (seq_arr[i]->type == SEQ_TYPE_META &&
+ seq_prefetch_do_skip_frame(pfjob, &seq_arr[i]->seqbase)) {
+ return true;
+ }
+
if (seq_arr[i]->type == SEQ_TYPE_SCENE && (seq_arr[i]->flag & SEQ_SCENE_STRIPS) == 0) {
int cached_types = 0;
@@ -457,7 +463,8 @@ static void *seq_prefetch_frames(void *job)
*/
pfjob->scene_eval->ed->prefetch_job = pfjob;
- if (seq_prefetch_do_skip_frame(pfjob->scene)) {
+ ListBase *seqbase = SEQ_active_seqbase_get(SEQ_editing_get(pfjob->scene, false));
+ if (seq_prefetch_do_skip_frame(pfjob, seqbase)) {
pfjob->num_frames_prefetched++;
continue;
}
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