Fix T66872: Changing clip color space does not update background images

Such reload can no longer happen directly and is to be done via dependency
graph.

Eventually, the movie cache will become shared across all copies of the
clip, but even then we still need to have dependency graph mechanism because
we need to update FFmpeg animation handle (which can not be shared across
the copies).

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_ID.h b/source/blender/makesdna/DNA_ID.h
index dc4164169f9..ef9069acb78 100644
--- a/source/blender/makesdna/DNA_ID.h
+++ b/source/blender/makesdna/DNA_ID.h
@@ -620,6 +620,11 @@ typedef enum IDRecalcFlag {
    * Basically, the same what changing frame in a timeline will do. */
   ID_RECALC_TIME = (1 << 22),
 
+  /* Input has changed and datablock is to be reload from disk.
+   * Applies to movie clips to inform that copy-on-written version is to be refreshed for the new
+   * input file or for color space changes. */
+  ID_RECALC_SOURCE = (1 << 23),
+
   /***************************************************************************
    * Pseudonyms, to have more semantic meaning in the actual code without
    * using too much low-level and implementation specific tags. */