Fix #31352: Image sequence texture - can't load image after changing image source

Added new flag to Imageuser which indicates whether user frame calculation is needed.
This flag is getting set in BKE_image_signal and handled in actual image usage areas
where both image user and current frame is known.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_image.h b/source/blender/blenkernel/BKE_image.h
index 91e3e9edbf0..ac3daef77f7 100644
--- a/source/blender/blenkernel/BKE_image.h
+++ b/source/blender/blenkernel/BKE_image.h
@@ -44,6 +44,7 @@ struct anim;
 struct Scene;
 struct Object;
 struct ImageFormatData;
+struct Main;
 
 /* call from library */
 void    BKE_image_free(struct Image *me);
@@ -143,6 +144,9 @@ struct Image *BKE_image_add_from_imbuf(struct ImBuf *ibuf);
 /* for reload, refresh, pack */
 void BKE_image_signal(struct Image *ima, struct ImageUser *iuser, int signal);
 
+void BKE_image_walk_all_users(const struct Main *mainp, void *customdata,
+                              void callback(struct Image *ima, struct ImageUser *iuser, void *customdata));
+
 /* ensures an Image exists for viewing nodes or render */
 struct Image *BKE_image_verify_viewer(int type, const char *name);
 
@@ -151,6 +155,7 @@ void BKE_image_assign_ibuf(struct Image *ima, struct ImBuf *ibuf);
 
 /* called on frame change or before render */
 void BKE_image_user_frame_calc(struct ImageUser *iuser, int cfra, int fieldnr);
+void BKE_image_user_check_frame_calc(struct ImageUser *iuser, int cfra, int fieldnr);
 int  BKE_image_user_frame_get(const struct ImageUser *iuser, int cfra, int fieldnr);
 
 /* sets index offset for multilayer files */