Refactor: move MotionPath .blend I/O to blenkernel

Ref T76372.

2 files changed, 36 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_anim_visualization.h b/source/blender/blenkernel/BKE_anim_visualization.h
index fb7875a112e..decb2e0b210 100644
--- a/source/blender/blenkernel/BKE_anim_visualization.h
+++ b/source/blender/blenkernel/BKE_anim_visualization.h
@@ -32,6 +32,8 @@ struct Scene;
 struct bAnimVizSettings;
 struct bMotionPath;
 struct bPoseChannel;
+struct BlendWriter;
+struct BlendDataReader;
 
 /* ---------------------------------------------------- */
 /* Animation Visualization */
@@ -48,6 +50,9 @@ struct bMotionPath *animviz_verify_motionpaths(struct ReportList *reports,
                                                struct Object *ob,
                                                struct bPoseChannel *pchan);
 
+void animviz_motionpath_blend_write(struct BlendWriter *writer, struct bMotionPath *mpath);
+void animviz_motionpath_blend_read_data(struct BlendDataReader *reader, struct bMotionPath *mpath);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/blenkernel/intern/anim_visualization.c b/source/blender/blenkernel/intern/anim_visualization.c
index 5452e2513fb..ecd71ec08fe 100644
--- a/source/blender/blenkernel/intern/anim_visualization.c
+++ b/source/blender/blenkernel/intern/anim_visualization.c
@@ -34,6 +34,8 @@
 
 #include "GPU_batch.h"
 
+#include "BLO_read_write.h"
+
 /* ******************************************************************** */
 /* Animation Visualization */
 
@@ -224,3 +226,32 @@ bMotionPath *animviz_verify_motionpaths(ReportList *reports,
   /* return it */
   return mpath;
 }
+
+void animviz_motionpath_blend_write(BlendWriter *writer, bMotionPath *mpath)
+{
+  /* sanity checks */
+  if (mpath == NULL) {
+    return;
+  }
+
+  /* firstly, just write the motionpath struct */
+  BLO_write_struct(writer, bMotionPath, mpath);
+
+  /* now write the array of data */
+  BLO_write_struct_array(writer, bMotionPathVert, mpath->length, mpath->points);
+}
+
+void animviz_motionpath_blend_read_data(BlendDataReader *reader, bMotionPath *mpath)
+{
+  /* sanity check */
+  if (mpath == NULL) {
+    return;
+  }
+
+  /* relink points cache */
+  BLO_read_data_address(reader, &mpath->points);
+
+  mpath->points_vbo = NULL;
+  mpath->batch_line = NULL;
+  mpath->batch_points = NULL;
+}