Refactor ID copying (and to some extent, ID freeing).

This will allow much finer controll over how we copy data-blocks, from
full copy in Main database, to "lighter" ones (out of Main, inside an
already allocated datablock, etc.).

This commit also transfers a llot of what was previously handled by
per-ID-type custom code to generic ID handling code in BKE_library.
Hopefully will avoid in future inconsistencies and missing bits we had
all over the codebase in the past.

It also adds missing copying handling for a few types, most notably
Scene (which where using a fully customized handling previously).

Note that the type of allocation used during copying (regular in Main,
allocated but outside of Main, or not allocated by ID handling code at
all) is stored in ID's, which allows to handle them correctly when
freeing. This needs to be taken care of with caution when doing 'weird'
unusual things with ID copying and/or allocation!

As a final note, while rather noisy, this commit will hopefully not
break too much existing branches, old 'API' has been kept for the main
part, as a wrapper around new code. Cleaning it up will happen later.

Design task : T51804
Phab Diff: D2714

1 files changed, 5 insertions, 5 deletions

diff --git a/source/blender/blenkernel/BKE_object.h b/source/blender/blenkernel/BKE_object.h
index 0a5035f9a9b..d1a4033957b 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -53,10 +53,10 @@ void BKE_object_workob_clear(struct Object *workob);
 void BKE_object_workob_calc_parent(struct Scene *scene, struct Object *ob, struct Object *workob);
 
 void BKE_object_transform_copy(struct Object *ob_tar, const struct Object *ob_src);
-struct SoftBody *copy_softbody(const struct SoftBody *sb, bool copy_caches);
-struct BulletSoftBody *copy_bulletsoftbody(const struct BulletSoftBody *sb);
-struct ParticleSystem *BKE_object_copy_particlesystem(struct ParticleSystem *psys);
-void BKE_object_copy_particlesystems(struct Object *ob_dst, const struct Object *ob_src);
+struct SoftBody *copy_softbody(const struct SoftBody *sb, const int flag);
+struct BulletSoftBody *copy_bulletsoftbody(const struct BulletSoftBody *sb, const int flag);
+struct ParticleSystem *BKE_object_copy_particlesystem(struct ParticleSystem *psys, const int flag);
+void BKE_object_copy_particlesystems(struct Object *ob_dst, const struct Object *ob_src, const int flag);
 void BKE_object_copy_softbody(struct Object *ob_dst, const struct Object *ob_src);
 void BKE_object_free_particlesystems(struct Object *ob);
 void BKE_object_free_softbody(struct Object *ob);
@@ -105,7 +105,7 @@ bool BKE_object_lod_is_usable(struct Object *ob, struct Scene *scene);
 struct Object *BKE_object_lod_meshob_get(struct Object *ob, struct Scene *scene);
 struct Object *BKE_object_lod_matob_get(struct Object *ob, struct Scene *scene);
 
-struct Object *BKE_object_copy_ex(struct Main *bmain, const struct Object *ob, bool copy_caches);
+void BKE_object_copy_data(struct Main *bmain, struct Object *ob_dst, const struct Object *ob_src, const int flag);
 struct Object *BKE_object_copy(struct Main *bmain, const struct Object *ob);
 void BKE_object_make_local(struct Main *bmain, struct Object *ob, const bool lib_local);
 void BKE_object_make_local_ex(struct Main *bmain, struct Object *ob, const bool lib_local, const bool clear_proxy);