Initial step for IDTypeInfo refactor 'cleanup' project.

Introduce new IDTypeInfo structure.

Each ID type will have its own, with some minimal basic common info,
and ID management callbacks.

This patch only does it for Object type, for demo/testing purpose.
Moving all existing IDs is a goal of next "cleanup Friday".

Note that BKE_idcode features should then be merged back into BKE_idtype -
but this will have to be done later, once all ID types have been properly
converted to the new system.

Another later TODO might be to try and add callbacks for file read/write,
and lib_query ID usages looper.

This is part of T73719.

Thanks to @brecht for initial idea, and reviewing the patch.

Differential Revision: https://developer.blender.org/D6966

1 files changed, 149 insertions, 106 deletions

diff --git a/source/blender/blenkernel/intern/lib_id.c b/source/blender/blenkernel/intern/lib_id.c
index 73a03294c51..416de844691 100644
--- a/source/blender/blenkernel/intern/lib_id.c
+++ b/source/blender/blenkernel/intern/lib_id.c
@@ -91,6 +91,7 @@
 #include "BKE_gpencil.h"
 #include "BKE_idcode.h"
 #include "BKE_idprop.h"
+#include "BKE_idtype.h"
 #include "BKE_image.h"
 #include "BKE_key.h"
 #include "BKE_light.h"
@@ -447,6 +448,23 @@ bool BKE_lib_id_make_local(Main *bmain, ID *id, const bool test, const int flags
     return false;
   }
 
+  const IDTypeInfo *idtype_info = BKE_idtype_get_info_from_id(id);
+
+  if (idtype_info != NULL) {
+    if ((idtype_info->flags & IDTYPE_FLAGS_NO_MAKELOCAL) == 0) {
+      if (!test) {
+        if (idtype_info->make_local != NULL) {
+          idtype_info->make_local(bmain, id, flags);
+        }
+        else {
+          BKE_lib_id_make_local_generic(bmain, id, flags);
+        }
+      }
+      return true;
+    }
+    return false;
+  }
+
   switch ((ID_Type)GS(id->name)) {
     case ID_SCE:
       if (!test) {
@@ -689,115 +707,131 @@ bool BKE_id_copy_ex(Main *bmain, const ID *id, ID **r_newid, const int flag)
   if (id == NULL) {
     return false;
   }
-  if (!BKE_id_copy_is_allowed(id)) {
-    return false;
+
+  const IDTypeInfo *idtype_info = BKE_idtype_get_info_from_id(id);
+
+  if (idtype_info != NULL) {
+    if ((idtype_info->flags & IDTYPE_FLAGS_NO_COPY) != 0) {
+      return false;
+    }
+
+    BKE_libblock_copy_ex(bmain, id, r_newid, flag);
+
+    if (idtype_info->copy_data != NULL) {
+      idtype_info->copy_data(bmain, *r_newid, id, flag);
+    }
   }
+  else {
+    if (!BKE_id_copy_is_allowed(id)) {
+      return false;
+    }
 
-  BKE_libblock_copy_ex(bmain, id, r_newid, flag);
+    BKE_libblock_copy_ex(bmain, id, r_newid, flag);
 
-  switch ((ID_Type)GS(id->name)) {
-    case ID_SCE:
-      BKE_scene_copy_data(bmain, (Scene *)*r_newid, (Scene *)id, flag);
-      break;
-    case ID_OB:
-      BKE_object_copy_data(bmain, (Object *)*r_newid, (Object *)id, flag);
-      break;
-    case ID_ME:
-      BKE_mesh_copy_data(bmain, (Mesh *)*r_newid, (Mesh *)id, flag);
-      break;
-    case ID_CU:
-      BKE_curve_copy_data(bmain, (Curve *)*r_newid, (Curve *)id, flag);
-      break;
-    case ID_MB:
-      BKE_mball_copy_data(bmain, (MetaBall *)*r_newid, (MetaBall *)id, flag);
-      break;
-    case ID_MA:
-      BKE_material_copy_data(bmain, (Material *)*r_newid, (Material *)id, flag);
-      break;
-    case ID_TE:
-      BKE_texture_copy_data(bmain, (Tex *)*r_newid, (Tex *)id, flag);
-      break;
-    case ID_IM:
-      BKE_image_copy_data(bmain, (Image *)*r_newid, (Image *)id, flag);
-      break;
-    case ID_LT:
-      BKE_lattice_copy_data(bmain, (Lattice *)*r_newid, (Lattice *)id, flag);
-      break;
-    case ID_LA:
-      BKE_light_copy_data(bmain, (Light *)*r_newid, (Light *)id, flag);
-      break;
-    case ID_SPK:
-      BKE_speaker_copy_data(bmain, (Speaker *)*r_newid, (Speaker *)id, flag);
-      break;
-    case ID_LP:
-      BKE_lightprobe_copy_data(bmain, (LightProbe *)*r_newid, (LightProbe *)id, flag);
-      break;
-    case ID_CA:
-      BKE_camera_copy_data(bmain, (Camera *)*r_newid, (Camera *)id, flag);
-      break;
-    case ID_KE:
-      BKE_key_copy_data(bmain, (Key *)*r_newid, (Key *)id, flag);
-      break;
-    case ID_WO:
-      BKE_world_copy_data(bmain, (World *)*r_newid, (World *)id, flag);
-      break;
-    case ID_TXT:
-      BKE_text_copy_data(bmain, (Text *)*r_newid, (Text *)id, flag);
-      break;
-    case ID_GR:
-      BKE_collection_copy_data(bmain, (Collection *)*r_newid, (Collection *)id, flag);
-      break;
-    case ID_AR:
-      BKE_armature_copy_data(bmain, (bArmature *)*r_newid, (bArmature *)id, flag);
-      break;
-    case ID_AC:
-      BKE_action_copy_data(bmain, (bAction *)*r_newid, (bAction *)id, flag);
-      break;
-    case ID_NT:
-      BKE_node_tree_copy_data(bmain, (bNodeTree *)*r_newid, (bNodeTree *)id, flag);
-      break;
-    case ID_BR:
-      BKE_brush_copy_data(bmain, (Brush *)*r_newid, (Brush *)id, flag);
-      break;
-    case ID_PA:
-      BKE_particlesettings_copy_data(
-          bmain, (ParticleSettings *)*r_newid, (ParticleSettings *)id, flag);
-      break;
-    case ID_GD:
-      BKE_gpencil_copy_data((bGPdata *)*r_newid, (bGPdata *)id, flag);
-      break;
-    case ID_MC:
-      BKE_movieclip_copy_data(bmain, (MovieClip *)*r_newid, (MovieClip *)id, flag);
-      break;
-    case ID_MSK:
-      BKE_mask_copy_data(bmain, (Mask *)*r_newid, (Mask *)id, flag);
-      break;
-    case ID_LS:
-      BKE_linestyle_copy_data(
-          bmain, (FreestyleLineStyle *)*r_newid, (FreestyleLineStyle *)id, flag);
-      break;
-    case ID_PAL:
-      BKE_palette_copy_data(bmain, (Palette *)*r_newid, (Palette *)id, flag);
-      break;
-    case ID_PC:
-      BKE_paint_curve_copy_data(bmain, (PaintCurve *)*r_newid, (PaintCurve *)id, flag);
-      break;
-    case ID_CF:
-      BKE_cachefile_copy_data(bmain, (CacheFile *)*r_newid, (CacheFile *)id, flag);
-      break;
-    case ID_SO:
-      BKE_sound_copy_data(bmain, (bSound *)*r_newid, (bSound *)id, flag);
-      break;
-    case ID_VF:
-      BKE_vfont_copy_data(bmain, (VFont *)*r_newid, (VFont *)id, flag);
-      break;
-    case ID_LI:
-    case ID_SCR:
-    case ID_WM:
-    case ID_WS:
-    case ID_IP:
-      BLI_assert(0); /* Should have been rejected at start of function! */
-      break;
+    switch ((ID_Type)GS(id->name)) {
+      case ID_SCE:
+        BKE_scene_copy_data(bmain, (Scene *)*r_newid, (Scene *)id, flag);
+        break;
+      case ID_OB:
+        BKE_object_copy_data(bmain, (Object *)*r_newid, (Object *)id, flag);
+        break;
+      case ID_ME:
+        BKE_mesh_copy_data(bmain, (Mesh *)*r_newid, (Mesh *)id, flag);
+        break;
+      case ID_CU:
+        BKE_curve_copy_data(bmain, (Curve *)*r_newid, (Curve *)id, flag);
+        break;
+      case ID_MB:
+        BKE_mball_copy_data(bmain, (MetaBall *)*r_newid, (MetaBall *)id, flag);
+        break;
+      case ID_MA:
+        BKE_material_copy_data(bmain, (Material *)*r_newid, (Material *)id, flag);
+        break;
+      case ID_TE:
+        BKE_texture_copy_data(bmain, (Tex *)*r_newid, (Tex *)id, flag);
+        break;
+      case ID_IM:
+        BKE_image_copy_data(bmain, (Image *)*r_newid, (Image *)id, flag);
+        break;
+      case ID_LT:
+        BKE_lattice_copy_data(bmain, (Lattice *)*r_newid, (Lattice *)id, flag);
+        break;
+      case ID_LA:
+        BKE_light_copy_data(bmain, (Light *)*r_newid, (Light *)id, flag);
+        break;
+      case ID_SPK:
+        BKE_speaker_copy_data(bmain, (Speaker *)*r_newid, (Speaker *)id, flag);
+        break;
+      case ID_LP:
+        BKE_lightprobe_copy_data(bmain, (LightProbe *)*r_newid, (LightProbe *)id, flag);
+        break;
+      case ID_CA:
+        BKE_camera_copy_data(bmain, (Camera *)*r_newid, (Camera *)id, flag);
+        break;
+      case ID_KE:
+        BKE_key_copy_data(bmain, (Key *)*r_newid, (Key *)id, flag);
+        break;
+      case ID_WO:
+        BKE_world_copy_data(bmain, (World *)*r_newid, (World *)id, flag);
+        break;
+      case ID_TXT:
+        BKE_text_copy_data(bmain, (Text *)*r_newid, (Text *)id, flag);
+        break;
+      case ID_GR:
+        BKE_collection_copy_data(bmain, (Collection *)*r_newid, (Collection *)id, flag);
+        break;
+      case ID_AR:
+        BKE_armature_copy_data(bmain, (bArmature *)*r_newid, (bArmature *)id, flag);
+        break;
+      case ID_AC:
+        BKE_action_copy_data(bmain, (bAction *)*r_newid, (bAction *)id, flag);
+        break;
+      case ID_NT:
+        BKE_node_tree_copy_data(bmain, (bNodeTree *)*r_newid, (bNodeTree *)id, flag);
+        break;
+      case ID_BR:
+        BKE_brush_copy_data(bmain, (Brush *)*r_newid, (Brush *)id, flag);
+        break;
+      case ID_PA:
+        BKE_particlesettings_copy_data(
+            bmain, (ParticleSettings *)*r_newid, (ParticleSettings *)id, flag);
+        break;
+      case ID_GD:
+        BKE_gpencil_copy_data((bGPdata *)*r_newid, (bGPdata *)id, flag);
+        break;
+      case ID_MC:
+        BKE_movieclip_copy_data(bmain, (MovieClip *)*r_newid, (MovieClip *)id, flag);
+        break;
+      case ID_MSK:
+        BKE_mask_copy_data(bmain, (Mask *)*r_newid, (Mask *)id, flag);
+        break;
+      case ID_LS:
+        BKE_linestyle_copy_data(
+            bmain, (FreestyleLineStyle *)*r_newid, (FreestyleLineStyle *)id, flag);
+        break;
+      case ID_PAL:
+        BKE_palette_copy_data(bmain, (Palette *)*r_newid, (Palette *)id, flag);
+        break;
+      case ID_PC:
+        BKE_paint_curve_copy_data(bmain, (PaintCurve *)*r_newid, (PaintCurve *)id, flag);
+        break;
+      case ID_CF:
+        BKE_cachefile_copy_data(bmain, (CacheFile *)*r_newid, (CacheFile *)id, flag);
+        break;
+      case ID_SO:
+        BKE_sound_copy_data(bmain, (bSound *)*r_newid, (bSound *)id, flag);
+        break;
+      case ID_VF:
+        BKE_vfont_copy_data(bmain, (VFont *)*r_newid, (VFont *)id, flag);
+        break;
+      case ID_LI:
+      case ID_SCR:
+      case ID_WM:
+      case ID_WS:
+      case ID_IP:
+        BLI_assert(0); /* Should have been rejected at start of function! */
+        break;
+    }
   }
 
   /* Update ID refcount, remap pointers to self in new ID. */
@@ -1298,6 +1332,15 @@ void *BKE_libblock_alloc(Main *bmain, short type, const char *name, const int fl
  */
 void BKE_libblock_init_empty(ID *id)
 {
+  const IDTypeInfo *idtype_info = BKE_idtype_get_info_from_id(id);
+
+  if (idtype_info != NULL) {
+    if (idtype_info->init_data != NULL) {
+      idtype_info->init_data(id);
+    }
+    return;
+  }
+
   /* Note that only ID types that are not valid when filled of zero should have a callback here. */
   switch ((ID_Type)GS(id->name)) {
     case ID_SCE: