[Bf-blender-cvs] [462bd813993] master: Fix: Sequencer backdrop not updated during playback.

[Jeroen Bakker]

Commit: 462bd81399375f8a91b9fd550bab741d4f8ba949
Author: Jeroen Bakker
Date:   Tue Jun 15 09:31:03 2021 +0200
Branches: master
https://developer.blender.org/rB462bd81399375f8a91b9fd550bab741d4f8ba949

Fix: Sequencer backdrop not updated during playback.

Caused by recent optimization in {7b76a160a4}.

===================================================================

M       source/blender/editors/include/ED_sequencer.h
M       source/blender/editors/screen/screen_ops.c
M       source/blender/editors/space_sequencer/sequencer_edit.c

===================================================================

diff --git a/source/blender/editors/include/ED_sequencer.h 
b/source/blender/editors/include/ED_sequencer.h
index ae76f0b6eaf..606b4c9cad0 100644
--- a/source/blender/editors/include/ED_sequencer.h
+++ b/source/blender/editors/include/ED_sequencer.h
@@ -42,7 +42,8 @@ bool ED_space_sequencer_maskedit_poll(struct bContext *C);
 
 bool ED_space_sequencer_check_show_imbuf(struct SpaceSeq *sseq);
 bool ED_space_sequencer_check_show_strip(struct SpaceSeq *sseq);
-bool ED_space_sequencer_has_visible_animation_on_strip(const struct Scene 
*scene);
+bool ED_space_sequencer_has_playback_animation(const struct SpaceSeq *sseq,
+                                               const struct Scene *scene);
 
 void ED_operatormacros_sequencer(void);
 
diff --git a/source/blender/editors/screen/screen_ops.c 
b/source/blender/editors/screen/screen_ops.c
index 373bde99e24..92413e808d3 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -4453,7 +4453,8 @@ static void screen_animation_region_tag_redraw(ScrArea 
*area,
     }
 
     if (area->spacetype == SPACE_SEQ) {
-      if (!ED_space_sequencer_has_visible_animation_on_strip(scene)) {
+      const SpaceSeq *sseq = area->spacedata.first;
+      if (!ED_space_sequencer_has_playback_animation(sseq, scene)) {
         return;
       }
     }
diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c 
b/source/blender/editors/space_sequencer/sequencer_edit.c
index 1c9b3676b19..b8134095492 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -153,12 +153,18 @@ static bool sequencer_fcurves_targets_color_strip(const 
FCurve *fcurve)
 }
 
 /*
- * Check if there is animation attached to a strip, that is shown on the strip 
in the UI.
+ * Check if there is animation shown during playback.
  *
  * - Colors of color strips are displayed on the strip itself.
+ * - Backdrop is drawn.
  */
-bool ED_space_sequencer_has_visible_animation_on_strip(const struct Scene 
*scene)
+bool ED_space_sequencer_has_playback_animation(const struct SpaceSeq *sseq,
+                                               const struct Scene *scene)
 {
+  if (sseq->draw_flag & SEQ_DRAW_BACKDROP) {
+    return true;
+  }
+
   if (!scene->adt) {
     return false;
   }

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