Cleanup: Nuke moar G.main usages...

35 files changed, 148 insertions, 124 deletions

diff --git a/source/blender/collada/ArmatureExporter.cpp b/source/blender/collada/ArmatureExporter.cpp
index 92ec8b470a8..9afe4662f74 100644
--- a/source/blender/collada/ArmatureExporter.cpp
+++ b/source/blender/collada/ArmatureExporter.cpp
@@ -62,10 +62,11 @@ ArmatureExporter::ArmatureExporter(COLLADASW::StreamWriter *sw, const ExportSett
 }
 
 // write bone nodes
-void ArmatureExporter::add_armature_bones(Object *ob_arm, Scene *sce,
+void ArmatureExporter::add_armature_bones(bContext *C, Object *ob_arm, Scene *sce,
                                           SceneExporter *se,
                                           std::list<Object *>& child_objects)
 {
+	Main *bmain = CTX_data_main(C);
 	// write bone nodes
 
 	bArmature * armature = (bArmature *)ob_arm->data;
@@ -77,11 +78,11 @@ void ArmatureExporter::add_armature_bones(Object *ob_arm, Scene *sce,
 	for (Bone *bone = (Bone *)armature->bonebase.first; bone; bone = bone->next) {
 		// start from root bones
 		if (!bone->parent)
-			add_bone_node(bone, ob_arm, sce, se, child_objects);
+			add_bone_node(C, bone, ob_arm, sce, se, child_objects);
 	}
 
 	if (!is_edited) {
-		ED_armature_from_edit(armature);
+		ED_armature_from_edit(bmain, armature);
 		ED_armature_edit_free(armature);
 	}
 }
@@ -160,7 +161,7 @@ void ArmatureExporter::find_objects_using_armature(Object *ob_arm, std::vector<O
 #endif
 
 // parent_mat is armature-space
-void ArmatureExporter::add_bone_node(Bone *bone, Object *ob_arm, Scene *sce,
+void ArmatureExporter::add_bone_node(bContext *C, Bone *bone, Object *ob_arm, Scene *sce,
                                      SceneExporter *se,
                                      std::list<Object *>& child_objects)
 {
@@ -234,7 +235,7 @@ void ArmatureExporter::add_bone_node(Bone *bone, Object *ob_arm, Scene *sce,
 						mul_m4_m4m4((*i)->parentinv, temp, (*i)->parentinv);
 					}
 
-					se->writeNodes(*i, sce);
+					se->writeNodes(C, *i, sce);
 
 					copy_m4_m4((*i)->parentinv, backup_parinv);
 					child_objects.erase(i++);
@@ -243,13 +244,13 @@ void ArmatureExporter::add_bone_node(Bone *bone, Object *ob_arm, Scene *sce,
 			}
 
 			for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next) {
-				add_bone_node(child, ob_arm, sce, se, child_objects);
+				add_bone_node(C, child, ob_arm, sce, se, child_objects);
 			}
 			node.end();
 		}
 		else {
 			for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next) {
-				add_bone_node(child, ob_arm, sce, se, child_objects);
+				add_bone_node(C, child, ob_arm, sce, se, child_objects);
 			}
 		}
 }
diff --git a/source/blender/collada/ArmatureExporter.h b/source/blender/collada/ArmatureExporter.h
index d271b505aa9..3199703cb20 100644
--- a/source/blender/collada/ArmatureExporter.h
+++ b/source/blender/collada/ArmatureExporter.h
@@ -60,7 +60,7 @@ public:
 	ArmatureExporter(COLLADASW::StreamWriter *sw, const ExportSettings *export_settings);
 
 	// write bone nodes
-	void add_armature_bones(Object *ob_arm, Scene *sce, SceneExporter *se,
+	void add_armature_bones(bContext *C, Object *ob_arm, Scene *sce, SceneExporter *se,
 	                        std::list<Object *>& child_objects);
 
 	bool add_instance_controller(Object *ob);
@@ -85,7 +85,7 @@ private:
 
 	// Scene, SceneExporter and the list of child_objects
 	// are required for writing bone parented objects
-	void add_bone_node(Bone *bone, Object *ob_arm, Scene *sce, SceneExporter *se,
+	void add_bone_node(bContext *C, Bone *bone, Object *ob_arm, Scene *sce, SceneExporter *se,
 	                   std::list<Object *>& child_objects);
 
 	void add_bone_transform(Object *ob_arm, Bone *bone, COLLADASW::Node& node);
diff --git a/source/blender/collada/ArmatureImporter.cpp b/source/blender/collada/ArmatureImporter.cpp
index c32a2a7034e..964f1f6b9e4 100644
--- a/source/blender/collada/ArmatureImporter.cpp
+++ b/source/blender/collada/ArmatureImporter.cpp
@@ -446,7 +446,7 @@ ArmatureJoints& ArmatureImporter::get_armature_joints(Object *ob_arm)
 	return armature_joints.back();
 }
 #endif
-void ArmatureImporter::create_armature_bones(std::vector<Object *> &ob_arms)
+void ArmatureImporter::create_armature_bones(Main *bmain, std::vector<Object *> &ob_arms)
 {
 	std::vector<COLLADAFW::Node *>::iterator ri;
 	std::vector<std::string> layer_labels;
@@ -479,7 +479,7 @@ void ArmatureImporter::create_armature_bones(std::vector<Object *> &ob_arms)
 		}
 
 		/* exit armature edit mode to populate the Armature object */
-		ED_armature_from_edit(armature);
+		ED_armature_from_edit(bmain, armature);
 		ED_armature_edit_free(armature);
 
 		ED_armature_to_edit(armature);
@@ -487,7 +487,7 @@ void ArmatureImporter::create_armature_bones(std::vector<Object *> &ob_arms)
 		fix_leaf_bone_hierarchy(armature, (Bone *)armature->bonebase.first, this->import_settings->fix_orientation);
 		unskinned_armature_map[(*ri)->getUniqueId()] = ob_arm;
 
-		ED_armature_from_edit(armature);
+		ED_armature_from_edit(bmain, armature);
 		ED_armature_edit_free(armature);
 
 		int index = std::find(ob_arms.begin(), ob_arms.end(), ob_arm) - ob_arms.begin();
@@ -499,7 +499,7 @@ void ArmatureImporter::create_armature_bones(std::vector<Object *> &ob_arms)
 	}
 }
 
-Object *ArmatureImporter::create_armature_bones(SkinInfo& skin)
+Object *ArmatureImporter::create_armature_bones(Main *bmain, SkinInfo& skin)
 {
 	// just do like so:
 	// - get armature
@@ -617,7 +617,7 @@ Object *ArmatureImporter::create_armature_bones(SkinInfo& skin)
 	}
 
 	/* exit armature edit mode to populate the Armature object */
-	ED_armature_from_edit(armature);
+	ED_armature_from_edit(bmain, armature);
 	ED_armature_edit_free(armature);
 
 	ED_armature_to_edit(armature);
@@ -625,7 +625,7 @@ Object *ArmatureImporter::create_armature_bones(SkinInfo& skin)
 		connect_bone_chains(armature, (Bone *)armature->bonebase.first, UNLIMITED_CHAIN_MAX);
 	}
 	fix_leaf_bone_hierarchy(armature, (Bone *)armature->bonebase.first, this->import_settings->fix_orientation);
-	ED_armature_from_edit(armature);
+	ED_armature_from_edit(bmain, armature);
 	ED_armature_edit_free(armature);
 
 	DAG_id_tag_update(&ob_arm->id, OB_RECALC_OB | OB_RECALC_DATA);
@@ -707,6 +707,7 @@ void ArmatureImporter::add_root_joint(COLLADAFW::Node *node)
 // here we add bones to armatures, having armatures previously created in write_controller
 void ArmatureImporter::make_armatures(bContext *C, std::vector<Object *> &objects_to_scale)
 {
+	Main *bmain = CTX_data_main(C);
 	std::vector<Object *> ob_arms;
 	std::map<COLLADAFW::UniqueId, SkinInfo>::iterator it;
 
@@ -716,7 +717,7 @@ void ArmatureImporter::make_armatures(bContext *C, std::vector<Object *> &object
 
 		SkinInfo& skin = it->second;
 
-		Object *ob_arm = create_armature_bones(skin);
+		Object *ob_arm = create_armature_bones(bmain, skin);
 
 		// link armature with a mesh object
 		const COLLADAFW::UniqueId &uid = skin.get_controller_uid();
@@ -757,7 +758,7 @@ void ArmatureImporter::make_armatures(bContext *C, std::vector<Object *> &object
 	}
 	
 	//for bones without skins
-	create_armature_bones(ob_arms);
+	create_armature_bones(bmain, ob_arms);
 
 	// Fix bone relations
 	std::vector<Object *>::iterator ob_arm_it;
@@ -771,7 +772,7 @@ void ArmatureImporter::make_armatures(bContext *C, std::vector<Object *> &object
 
 		fix_parent_connect(armature, (Bone *)armature->bonebase.first);
 
-		ED_armature_from_edit(armature);
+		ED_armature_from_edit(bmain, armature);
 		ED_armature_edit_free(armature);
 	}
 }
diff --git a/source/blender/collada/ArmatureImporter.h b/source/blender/collada/ArmatureImporter.h
index 17173f157e5..fbce14f1b05 100644
--- a/source/blender/collada/ArmatureImporter.h
+++ b/source/blender/collada/ArmatureImporter.h
@@ -129,8 +129,8 @@ private:
 	ArmatureJoints& get_armature_joints(Object *ob_arm);
 #endif
 
-	Object *create_armature_bones(SkinInfo& skin);
-	void create_armature_bones(std::vector<Object *> &arm_objs);
+	Object *create_armature_bones(Main *bmain, SkinInfo& skin);
+	void create_armature_bones(Main *bmain, std::vector<Object *> &arm_objs);
 
 	/** TagsMap typedef for uid_tags_map. */
 	typedef std::map<std::string, ExtraTags*> TagsMap;
diff --git a/source/blender/collada/DocumentExporter.cpp b/source/blender/collada/DocumentExporter.cpp
index d4eb6b477db..472bd326205 100644
--- a/source/blender/collada/DocumentExporter.cpp
+++ b/source/blender/collada/DocumentExporter.cpp
@@ -181,7 +181,7 @@ static COLLADABU::NativeString make_temp_filepath(const char *name, const char *
 // COLLADA allows this through multiple <channel>s in <animation>.
 // For this to work, we need to know objects that use a certain action.
 
-int DocumentExporter::exportCurrentScene(const EvaluationContext *eval_ctx, Scene *sce)
+int DocumentExporter::exportCurrentScene(bContext *C, const EvaluationContext *eval_ctx, Scene *sce)
 {
 	PointerRNA sceneptr, unit_settings;
 	PropertyRNA *system; /* unused , *scale; */
@@ -307,7 +307,7 @@ int DocumentExporter::exportCurrentScene(const EvaluationContext *eval_ctx, Scen
 		AnimationExporter ae(writer, this->export_settings);
 		ae.exportAnimations(sce);
 	}
-	se.exportScene(sce);
+	se.exportScene(C, sce);
 	
 	// <scene>
 	std::string scene_name(translate_id(id_name(sce)));
diff --git a/source/blender/collada/DocumentExporter.h b/source/blender/collada/DocumentExporter.h
index 60e5deb0e31..817df3735da 100644
--- a/source/blender/collada/DocumentExporter.h
+++ b/source/blender/collada/DocumentExporter.h
@@ -40,7 +40,7 @@ class DocumentExporter
 {
  public:
 	DocumentExporter(const ExportSettings *export_settings);
-	int  exportCurrentScene(const EvaluationContext *eval_ctx, Scene *sce);
+	int  exportCurrentScene(bContext *C, const EvaluationContext *eval_ctx, Scene *sce);
 	void exportScenes(const char *filename);
 private:
 	const ExportSettings *export_settings;
diff --git a/source/blender/collada/SceneExporter.cpp b/source/blender/collada/SceneExporter.cpp
index 5a0badf8d3a..c195ecb4725 100644
--- a/source/blender/collada/SceneExporter.cpp
+++ b/source/blender/collada/SceneExporter.cpp
@@ -38,17 +38,17 @@ SceneExporter::SceneExporter(COLLADASW::StreamWriter *sw, ArmatureExporter *arm,
 {
 }
 
-void SceneExporter::exportScene(Scene *sce)
+void SceneExporter::exportScene(bContext *C, Scene *sce)
 {
 	// <library_visual_scenes> <visual_scene>
 	std::string id_naming = id_name(sce);
 	openVisualScene(translate_id(id_naming), id_naming);
-	exportHierarchy(sce);
+	exportHierarchy(C, sce);
 	closeVisualScene();
 	closeLibrary();
 }
 
-void SceneExporter::exportHierarchy(Scene *sce)
+void SceneExporter::exportHierarchy(bContext *C, Scene *sce)
 {	
 	LinkNode *node;
 	std::vector<Object *> base_objects;
@@ -80,13 +80,13 @@ void SceneExporter::exportHierarchy(Scene *sce)
 		Object *ob = base_objects[index];
 		if (bc_is_marked(ob)) {
 			bc_remove_mark(ob);
-			writeNodes(ob, sce);
+			writeNodes(C, ob, sce);
 		}
 	}
 }
 
 
-void SceneExporter::writeNodes(Object *ob, Scene *sce)
+void SceneExporter::writeNodes(bContext *C, Object *ob, Scene *sce)
 {
 	// Add associated armature first if available
 	bool armature_exported = false;
@@ -95,7 +95,7 @@ void SceneExporter::writeNodes(Object *ob, Scene *sce)
 		armature_exported = bc_is_in_Export_set(this->export_settings->export_set, ob_arm);
 		if (armature_exported && bc_is_marked(ob_arm)) {
 			bc_remove_mark(ob_arm);
-			writeNodes(ob_arm, sce);
+			writeNodes(C, ob_arm, sce);
 			armature_exported = true;
 		}
 	}
@@ -157,7 +157,7 @@ void SceneExporter::writeNodes(Object *ob, Scene *sce)
 
 	// <instance_controller>
 	else if (ob->type == OB_ARMATURE) {
-		arm_exporter->add_armature_bones(ob, sce, this, child_objects);
+		arm_exporter->add_armature_bones(C, ob, sce, this, child_objects);
 	}
 
 	// <instance_camera>
@@ -235,7 +235,7 @@ void SceneExporter::writeNodes(Object *ob, Scene *sce)
 	for (std::list<Object *>::iterator i = child_objects.begin(); i != child_objects.end(); ++i) {
 		if (bc_is_marked(*i)) {
 			bc_remove_mark(*i);
-			writeNodes(*i, sce);
+			writeNodes(C, *i, sce);
 		}
 	}
 
diff --git a/source/blender/collada/SceneExporter.h b/source/blender/collada/SceneExporter.h
index b896b9abd8d..60cb078d91b 100644
--- a/source/blender/collada/SceneExporter.h
+++ b/source/blender/collada/SceneExporter.h
@@ -96,12 +96,12 @@ class SceneExporter: COLLADASW::LibraryVisualScenes, protected TransformWriter,
 {
 public:
 	SceneExporter(COLLADASW::StreamWriter *sw, ArmatureExporter *arm, const ExportSettings *export_settings);
-	void exportScene(Scene *sce);
+	void exportScene(bContext *C, Scene *sce);
 
 private:
 	friend class ArmatureExporter;
-	void exportHierarchy(Scene *sce);
-	void writeNodes(Object *ob, Scene *sce);
+	void exportHierarchy(bContext *C, Scene *sce);
+	void writeNodes(bContext *C, Object *ob, Scene *sce);
 	
 	ArmatureExporter *arm_exporter;
 	const ExportSettings *export_settings;
diff --git a/source/blender/collada/collada.cpp b/source/blender/collada/collada.cpp
index 3794b6aefac..ecaa7fba08c 100644
--- a/source/blender/collada/collada.cpp
+++ b/source/blender/collada/collada.cpp
@@ -48,7 +48,8 @@ int collada_import(bContext *C, ImportSettings *import_settings)
 	return (imp.import())? 1:0;
 }
 
-int collada_export(EvaluationContext *eval_ctx,
+int collada_export(bContext *C,
+                   EvaluationContext *eval_ctx,
                    Scene *sce,
                    ExportSettings *export_settings)
 {
@@ -75,7 +76,7 @@ int collada_export(EvaluationContext *eval_ctx,
 	}
 
 	DocumentExporter exporter(export_settings);
-	int status = exporter.exportCurrentScene(eval_ctx, sce);
+	int status = exporter.exportCurrentScene(C, eval_ctx, sce);
 
 	BLI_linklist_free(export_settings->export_set, NULL);
 
diff --git a/source/blender/collada/collada.h b/source/blender/collada/collada.h
index 312f11d4ba9..907c94855f7 100644
--- a/source/blender/collada/collada.h
+++ b/source/blender/collada/collada.h
@@ -52,7 +52,8 @@ struct Scene;
 int collada_import(struct bContext *C,
 				   ImportSettings *import_settings);
 
-int collada_export(struct EvaluationContext *eval_ctx,
+int collada_export(struct bContext *C,
+                   struct EvaluationContext *eval_ctx,
                    struct Scene *sce,
                    ExportSettings *export_settings);
 
diff --git a/source/blender/editors/armature/armature_edit.c b/source/blender/editors/armature/armature_edit.c
index 539d56a4ede..0f382f07671 100644
--- a/source/blender/editors/armature/armature_edit.c
+++ b/source/blender/editors/armature/armature_edit.c
@@ -49,6 +49,7 @@
 #include "BKE_constraint.h"
 #include "BKE_context.h"
 #include "BKE_global.h"
+#include "BKE_main.h"
 #include "BKE_report.h"
 
 #include "RNA_access.h"
@@ -66,7 +67,7 @@
 /* ************************** Object Tools Exports ******************************* */
 /* NOTE: these functions are exported to the Object module to be called from the tools there */
 
-void ED_armature_transform_apply(Object *ob, float mat[4][4], const bool do_props)
+void ED_armature_transform_apply(Main *bmain, Object *ob, float mat[4][4], const bool do_props)
 {
 	bArmature *arm = ob->data;
 
@@ -77,7 +78,7 @@ void ED_armature_transform_apply(Object *ob, float mat[4][4], const bool do_prop
 	ED_armature_transform_bones(arm, mat, do_props);
 
 	/* Turn the list into an armature */
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 	ED_armature_edit_free(arm);
 }
 
@@ -118,7 +119,7 @@ void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4], const b
 	}
 }
 
-void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props)
+void ED_armature_transform(Main *bmain, bArmature *arm, float mat[4][4], const bool do_props)
 {
 	if (arm->edbo) {
 		ED_armature_transform_bones(arm, mat, do_props);
@@ -131,14 +132,14 @@ void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do
 		ED_armature_transform_bones(arm, mat, do_props);
 
 		/* Go back to object mode*/
-		ED_armature_from_edit(arm);
+		ED_armature_from_edit(bmain, arm);
 		ED_armature_edit_free(arm);
 	}
 }
 
 /* exported for use in editors/object/ */
 /* 0 == do center, 1 == center new, 2 == center cursor */
-void ED_armature_origin_set(Scene *scene, Object *ob, float cursor[3], int centermode, int around)
+void ED_armature_origin_set(Main *bmain, Scene *scene, Object *ob, float cursor[3], int centermode, int around)
 {
 	Object *obedit = scene->obedit; // XXX get from context
 	EditBone *ebone;
@@ -189,7 +190,7 @@ void ED_armature_origin_set(Scene *scene, Object *ob, float cursor[3], int cente
 
 	/* Turn the list into an armature */
 	if (obedit == NULL) {
-		ED_armature_from_edit(arm);
+		ED_armature_from_edit(bmain, arm);
 		ED_armature_edit_free(arm);
 	}
 
diff --git a/source/blender/editors/armature/armature_relations.c b/source/blender/editors/armature/armature_relations.c
index 95c8b1d5460..c9fe6a5758b 100644
--- a/source/blender/editors/armature/armature_relations.c
+++ b/source/blender/editors/armature/armature_relations.c
@@ -397,7 +397,7 @@ int join_armature_exec(bContext *C, wmOperator *op)
 
 	DAG_relations_tag_update(bmain);  /* because we removed object(s) */
 
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 	ED_armature_edit_free(arm);
 
 	WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
@@ -513,7 +513,7 @@ static void separated_armature_fix_links(Object *origArm, Object *newArm)
  *	sel: remove selected bones from the armature, otherwise the unselected bones are removed
  *  (ob is not in editmode)
  */
-static void separate_armature_bones(Object *ob, short sel)
+static void separate_armature_bones(Main *bmain, Object *ob, short sel)
 {
 	bArmature *arm = (bArmature *)ob->data;
 	bPoseChannel *pchan, *pchann;
@@ -560,7 +560,7 @@ static void separate_armature_bones(Object *ob, short sel)
 	}
 
 	/* exit editmode (recalculates pchans too) */
-	ED_armature_from_edit(ob->data);
+	ED_armature_from_edit(bmain, ob->data);
 	ED_armature_edit_free(ob->data);
 }
 
@@ -603,7 +603,7 @@ static int separate_armature_exec(bContext *C, wmOperator *op)
 	oldob->mode &= ~OB_MODE_POSE;
 	//oldbase->flag &= ~OB_POSEMODE;
 
-	ED_armature_from_edit(obedit->data);
+	ED_armature_from_edit(bmain, obedit->data);
 	ED_armature_edit_free(obedit->data);
 
 	/* 2) duplicate base */
@@ -615,8 +615,8 @@ static int separate_armature_exec(bContext *C, wmOperator *op)
 
 
 	/* 3) remove bones that shouldn't still be around on both armatures */
-	separate_armature_bones(oldob, 1);
-	separate_armature_bones(newob, 0);
+	separate_armature_bones(bmain, oldob, 1);
+	separate_armature_bones(bmain, newob, 0);
 
 
 	/* 4) fix links before depsgraph flushes */ // err... or after?
diff --git a/source/blender/editors/armature/armature_utils.c b/source/blender/editors/armature/armature_utils.c
index f0e4d5e1102..c6cd9475008 100644
--- a/source/blender/editors/armature/armature_utils.c
+++ b/source/blender/editors/armature/armature_utils.c
@@ -584,7 +584,7 @@ static void armature_finalize_restpose(ListBase *bonelist, ListBase *editbonelis
 }
 
 /* put EditMode back in Object */
-void ED_armature_from_edit(bArmature *arm)
+void ED_armature_from_edit(Main *bmain, bArmature *arm)
 {
 	EditBone *eBone, *neBone;
 	Bone *newBone;
@@ -678,7 +678,7 @@ void ED_armature_from_edit(bArmature *arm)
 	armature_finalize_restpose(&arm->bonebase, arm->edbo);
 
 	/* so all users of this armature should get rebuilt */
-	for (obt = G.main->object.first; obt; obt = obt->id.next) {
+	for (obt = bmain->object.first; obt; obt = obt->id.next) {
 		if (obt->data == arm) {
 			BKE_pose_rebuild(obt, arm);
 		}
diff --git a/source/blender/editors/armature/editarmature_retarget.c b/source/blender/editors/armature/editarmature_retarget.c
index ad0025955c2..b74b515b37f 100644
--- a/source/blender/editors/armature/editarmature_retarget.c
+++ b/source/blender/editors/armature/editarmature_retarget.c
@@ -40,6 +40,7 @@
 #include "BKE_constraint.h"
 #include "BKE_armature.h"
 #include "BKE_context.h"
+#include "BKE_main.h"
 
 #include "ED_armature.h"
 #include "ED_undo.h"
@@ -2413,6 +2414,7 @@ static void finishRetarget(RigGraph *rigg)
 
 static void adjustGraphs(bContext *C, RigGraph *rigg)
 {
+	Main *bmain = CTX_data_main(C);
 	bArmature *arm = rigg->ob->data;
 	RigArc *arc;
 
@@ -2426,13 +2428,14 @@ static void adjustGraphs(bContext *C, RigGraph *rigg)
 
 	/* Turn the list into an armature */
 	arm->edbo = rigg->editbones;
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 
 	ED_undo_push(C, "Retarget Skeleton");
 }
 
 static void retargetGraphs(bContext *C, RigGraph *rigg)
 {
+	Main *bmain = CTX_data_main(C);
 	bArmature *arm = rigg->ob->data;
 	ReebGraph *reebg = rigg->link_mesh;
 	RigNode *inode;
@@ -2453,7 +2456,7 @@ static void retargetGraphs(bContext *C, RigGraph *rigg)
 
 	/* Turn the list into an armature */
 	arm->edbo = rigg->editbones;
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 }
 
 const char *RIG_nameBone(RigGraph *rg, int arc_index, int bone_index)
diff --git a/source/blender/editors/armature/pose_transform.c b/source/blender/editors/armature/pose_transform.c
index 1fc623eb6af..c726b4db7bf 100644
--- a/source/blender/editors/armature/pose_transform.c
+++ b/source/blender/editors/armature/pose_transform.c
@@ -92,6 +92,7 @@ static void applyarmature_fix_boneparents(Scene *scene, Object *armob)
 /* set the current pose as the restpose */
 static int apply_armature_pose2bones_exec(bContext *C, wmOperator *op)
 {
+	Main *bmain = CTX_data_main(C);
 	Scene *scene = CTX_data_scene(C);
 	Object *ob = BKE_object_pose_armature_get(CTX_data_active_object(C)); // must be active object, not edit-object
 	bArmature *arm = BKE_armature_from_object(ob);
@@ -185,7 +186,7 @@ static int apply_armature_pose2bones_exec(bContext *C, wmOperator *op)
 	}
 
 	/* convert editbones back to bones, and then free the edit-data */
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 	ED_armature_edit_free(arm);
 
 	/* flush positions of posebones */
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index 139034a22d5..b0efc2ddc50 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -1102,7 +1102,7 @@ static int *initialize_index_map(Object *obedit, int *r_old_totvert)
 	return old_to_new_map;
 }
 
-static void remap_hooks_and_vertex_parents(Object *obedit)
+static void remap_hooks_and_vertex_parents(Main *bmain, Object *obedit)
 {
 	Object *object;
 	Curve *curve = (Curve *) obedit->data;
@@ -1118,7 +1118,7 @@ static void remap_hooks_and_vertex_parents(Object *obedit)
 		return;
 	}
 
-	for (object = G.main->object.first; object; object = object->id.next) {
+	for (object = bmain->object.first; object; object = object->id.next) {
 		ModifierData *md;
 		int index;
 		if ((object->parent) &&
@@ -1181,7 +1181,7 @@ static void remap_hooks_and_vertex_parents(Object *obedit)
 }
 
 /* load editNurb in object */
-void ED_curve_editnurb_load(Object *obedit)
+void ED_curve_editnurb_load(Main *bmain, Object *obedit)
 {
 	ListBase *editnurb = object_editcurve_get(obedit);
 
@@ -1192,7 +1192,7 @@ void ED_curve_editnurb_load(Object *obedit)
 		Nurb *nu, *newnu;
 		ListBase newnurb = {NULL, NULL}, oldnurb = cu->nurb;
 
-		remap_hooks_and_vertex_parents(obedit);
+		remap_hooks_and_vertex_parents(bmain, obedit);
 
 		for (nu = editnurb->first; nu; nu = nu->next) {
 			newnu = BKE_nurb_duplicate(nu);
@@ -1321,7 +1321,7 @@ static int separate_exec(bContext *C, wmOperator *op)
 	BLI_movelisttolist(&newedit->nurbs, &newnurb);
 
 	/* 4. put old object out of editmode and delete separated geometry */
-	ED_curve_editnurb_load(newob);
+	ED_curve_editnurb_load(bmain, newob);
 	ED_curve_editnurb_free(newob);
 	curve_delete_segments(oldob, true);
 
diff --git a/source/blender/editors/include/ED_armature.h b/source/blender/editors/include/ED_armature.h
index 51fb5abedd2..11c389bbb1a 100644
--- a/source/blender/editors/include/ED_armature.h
+++ b/source/blender/editors/include/ED_armature.h
@@ -41,6 +41,7 @@ struct Bone;
 struct bPoseChannel;
 struct IDProperty;
 struct ListBase;
+struct Main;
 struct MeshDeformModifierData;
 struct DerivedMesh;
 struct Object;
@@ -126,7 +127,7 @@ void ED_operatormacros_armature(void);
 void ED_keymap_armature(struct wmKeyConfig *keyconf);
 
 /* editarmature.c */
-void ED_armature_from_edit(struct bArmature *arm);
+void ED_armature_from_edit(struct Main *bmain, struct bArmature *arm);
 void ED_armature_to_edit(struct bArmature *arm);
 void ED_armature_edit_free(struct bArmature *arm);
 
@@ -162,11 +163,11 @@ void ED_armature_ebone_from_mat3(EditBone *ebone, float mat[3][3]);
 void ED_armature_ebone_from_mat4(EditBone *ebone, float mat[4][4]);
 
 void ED_armature_edit_transform_mirror_update(struct Object *obedit);
-void ED_armature_origin_set(struct Scene *scene, struct Object *ob, float cursor[3], int centermode, int around);
+void ED_armature_origin_set(struct Main *bmain, struct Scene *scene, struct Object *ob, float cursor[3], int centermode, int around);
 
 void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4], const bool do_props);
-void ED_armature_transform_apply(struct Object *ob, float mat[4][4], const bool do_props);
-void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props);
+void ED_armature_transform_apply(struct Main *bmain, struct Object *ob, float mat[4][4], const bool do_props);
+void ED_armature_transform(struct Main *bmain, struct bArmature *arm, float mat[4][4], const bool do_props);
 
 #define ARM_GROUPS_NAME     1
 #define ARM_GROUPS_ENVELOPE 2
diff --git a/source/blender/editors/include/ED_curve.h b/source/blender/editors/include/ED_curve.h
index 74c8334322f..8fcfb4743d5 100644
--- a/source/blender/editors/include/ED_curve.h
+++ b/source/blender/editors/include/ED_curve.h
@@ -32,15 +32,16 @@
 #define __ED_CURVE_H__
 
 struct bContext;
+struct BezTriple;
+struct BPoint;
+struct Curve;
+struct EditNurb;
+struct Main;
 struct Nurb;
 struct Object;
 struct Text;
 struct wmOperator;
 struct wmKeyConfig;
-struct Curve;
-struct EditNurb;
-struct BezTriple;
-struct BPoint;
 struct UndoType;
 
 /* curve_ops.c */
@@ -51,7 +52,7 @@ void    ED_keymap_curve(struct wmKeyConfig *keyconf);
 /* editcurve.c */
 struct ListBase *object_editcurve_get(struct Object *ob);
 
-void    ED_curve_editnurb_load(struct Object *obedit);
+void    ED_curve_editnurb_load(struct Main *bmain, struct Object *obedit);
 void    ED_curve_editnurb_make(struct Object *obedit);
 void    ED_curve_editnurb_free(struct Object *obedit);
 
diff --git a/source/blender/editors/include/ED_object.h b/source/blender/editors/include/ED_object.h
index 72cc245d772..31a03f336a9 100644
--- a/source/blender/editors/include/ED_object.h
+++ b/source/blender/editors/include/ED_object.h
@@ -117,7 +117,7 @@ enum {
 	EM_WAITCURSOR       = (1 << 1),
 	EM_IGNORE_LAYER     = (1 << 3),
 };
-bool ED_object_editmode_exit_ex(struct Scene *scene, struct Object *obedit, int flag);
+bool ED_object_editmode_exit_ex(struct Main *bmain, struct Scene *scene, struct Object *obedit, int flag);
 bool ED_object_editmode_exit(struct bContext *C, int flag);
 bool ED_object_editmode_enter(struct bContext *C, int flag);
 bool ED_object_editmode_load(struct Main *bmain, struct Object *obedit);
diff --git a/source/blender/editors/include/ED_screen.h b/source/blender/editors/include/ED_screen.h
index b80f69fd406..eca5628eb23 100644
--- a/source/blender/editors/include/ED_screen.h
+++ b/source/blender/editors/include/ED_screen.h
@@ -98,14 +98,14 @@ void    ED_area_swapspace(struct bContext *C, ScrArea *sa1, ScrArea *sa2);
 int     ED_area_headersize(void);
 
 /* screens */
-void    ED_screens_initialize(struct wmWindowManager *wm);
+void    ED_screens_initialize(struct Main *bmain, struct wmWindowManager *wm);
 void    ED_screen_draw_edges(struct wmWindow *win);
 void    ED_screen_draw_join_shape(struct ScrArea *sa1, struct ScrArea *sa2);
 void    ED_screen_draw_split_preview(struct ScrArea *sa, const int dir, const float fac);
 void    ED_screen_refresh(struct wmWindowManager *wm, struct wmWindow *win);
 void    ED_screen_do_listen(struct bContext *C, struct wmNotifier *note);
-bScreen *ED_screen_duplicate(struct wmWindow *win, struct bScreen *sc);
-bScreen *ED_screen_add(struct wmWindow *win, struct Scene *scene, const char *name);
+bScreen *ED_screen_duplicate(struct Main *bmain, struct wmWindow *win, struct bScreen *sc);
+bScreen *ED_screen_add(struct Main *bmain, struct wmWindow *win, struct Scene *scene, const char *name);
 bool    ED_screen_set(struct bContext *C, struct bScreen *sc);
 bool    ED_screen_delete(struct bContext *C, struct bScreen *sc);
 void    ED_screen_set_scene(struct bContext *C, struct bScreen *screen, struct Scene *scene);
diff --git a/source/blender/editors/io/io_collada.c b/source/blender/editors/io/io_collada.c
index d61eb80e9bc..30323d421de 100644
--- a/source/blender/editors/io/io_collada.c
+++ b/source/blender/editors/io/io_collada.c
@@ -205,10 +205,11 @@ static int wm_collada_export_exec(bContext *C, wmOperator *op)
 	if (export_settings.include_children) includeFilter |= OB_REL_CHILDREN_RECURSIVE;
 
 
-	export_count = collada_export(eval_ctx,
-		scene,
-		&export_settings
-	);
+	export_count = collada_export(
+	                   C,
+	                   eval_ctx,
+	                   scene,
+	                   &export_settings);
 
 	if (export_count == 0) {
 		BKE_report(op->reports, RPT_WARNING, "No objects selected -- Created empty export file");
diff --git a/source/blender/editors/object/object_constraint.c b/source/blender/editors/object/object_constraint.c
index d0588806313..bb9d9d74bb4 100644
--- a/source/blender/editors/object/object_constraint.c
+++ b/source/blender/editors/object/object_constraint.c
@@ -150,7 +150,7 @@ bConstraint *get_active_constraint(Object *ob)
 /* ------------- PyConstraints ------------------ */
 
 /* this callback sets the text-file to be used for selected menu item */
-static void validate_pyconstraint_cb(void *arg1, void *arg2)
+static void validate_pyconstraint_cb(Main *bmain, void *arg1, void *arg2)
 {
 	bPythonConstraint *data = arg1;
 	Text *text = NULL;
@@ -160,13 +160,13 @@ static void validate_pyconstraint_cb(void *arg1, void *arg2)
 	/* exception for no script */
 	if (index) {
 		/* innovative use of a for...loop to search */
-		for (text = G.main->text.first, i = 1; text && index != i; i++, text = text->id.next) ;
+		for (text = bmain->text.first, i = 1; text && index != i; i++, text = text->id.next) ;
 	}
 	data->text = text;
 }
 
 /* this returns a string for the list of usable pyconstraint script names */
-static char *buildmenu_pyconstraints(Text *con_text, int *pyconindex)
+static char *buildmenu_pyconstraints(Main *bmain, Text *con_text, int *pyconindex)
 {
 	DynStr *pupds = BLI_dynstr_new();
 	Text *text;
@@ -183,7 +183,7 @@ static char *buildmenu_pyconstraints(Text *con_text, int *pyconindex)
 		*pyconindex = 0;
 
 	/* loop through markers, adding them */
-	for (text = G.main->text.first, i = 1; text; i++, text = text->id.next) {
+	for (text = bmain->text.first, i = 1; text; i++, text = text->id.next) {
 		/* this is important to ensure that right script is shown as active */
 		if (text == con_text) *pyconindex = i;
 
@@ -1792,14 +1792,14 @@ static int constraint_add_exec(bContext *C, wmOperator *op, Object *ob, ListBase
 			char *menustr;
 			int scriptint = 0;
 			/* popup a list of usable scripts */
-			menustr = buildmenu_pyconstraints(NULL, &scriptint);
+			menustr = buildmenu_pyconstraints(bmain, NULL, &scriptint);
 			/* XXX scriptint = pupmenu(menustr); */
 			MEM_freeN(menustr);
 
 			/* only add constraint if a script was chosen */
 			if (scriptint) {
 				/* add constraint */
-				validate_pyconstraint_cb(con->data, &scriptint);
+				validate_pyconstraint_cb(bmain, con->data, &scriptint);
 
 				/* make sure target allowance is set correctly */
 				BPY_pyconstraint_update(ob, con);
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index 2737ae5d92d..2131c85ec82 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -383,7 +383,7 @@ static bool ED_object_editmode_load_ex(Main *bmain, Object *obedit, const bool f
 		if (arm->edbo == NULL) {
 			return false;
 		}
-		ED_armature_from_edit(obedit->data);
+		ED_armature_from_edit(bmain, obedit->data);
 		if (freedata) {
 			ED_armature_edit_free(obedit->data);
 		}
@@ -398,7 +398,7 @@ static bool ED_object_editmode_load_ex(Main *bmain, Object *obedit, const bool f
 		if (cu->editnurb == NULL) {
 			return false;
 		}
-		ED_curve_editnurb_load(obedit);
+		ED_curve_editnurb_load(bmain, obedit);
 		if (freedata) {
 			ED_curve_editnurb_free(obedit);
 		}
@@ -446,13 +446,13 @@ bool ED_object_editmode_load(Main *bmain, Object *obedit)
  * \param flag:
  * - If #EM_FREEDATA isn't in the flag, use ED_object_editmode_load directly.
  */
-bool ED_object_editmode_exit_ex(Scene *scene, Object *obedit, int flag)
+bool ED_object_editmode_exit_ex(Main *bmain, Scene *scene, Object *obedit, int flag)
 {
 	const bool freedata = (flag & EM_FREEDATA) != 0;
 
 	if (flag & EM_WAITCURSOR) waitcursor(1);
 
-	if (ED_object_editmode_load_ex(G.main, obedit, freedata) == false) {
+	if (ED_object_editmode_load_ex(bmain, obedit, freedata) == false) {
 		/* in rare cases (background mode) its possible active object
 		 * is flagged for editmode, without 'obedit' being set [#35489] */
 		if (UNLIKELY(scene->basact && (scene->basact->object->mode & OB_MODE_EDIT))) {
@@ -495,9 +495,10 @@ bool ED_object_editmode_exit_ex(Scene *scene, Object *obedit, int flag)
 
 bool ED_object_editmode_exit(bContext *C, int flag)
 {
+	Main *bmain = CTX_data_main(C);
 	Scene *scene = CTX_data_scene(C);
 	Object *obedit = CTX_data_edit_object(C);
-	return ED_object_editmode_exit_ex(scene, obedit, flag);
+	return ED_object_editmode_exit_ex(bmain, scene, obedit, flag);
 }
 
 bool ED_object_editmode_enter(bContext *C, int flag)
diff --git a/source/blender/editors/object/object_hook.c b/source/blender/editors/object/object_hook.c
index 5963e4b769b..b6dd3e2de66 100644
--- a/source/blender/editors/object/object_hook.c
+++ b/source/blender/editors/object/object_hook.c
@@ -301,7 +301,7 @@ static int return_editcurve_indexar(
 	return totvert;
 }
 
-static bool object_hook_index_array(Scene *scene, Object *obedit,
+static bool object_hook_index_array(Main *bmain, Scene *scene, Object *obedit,
                                     int *r_tot, int **r_indexar, char *r_name, float r_cent[3])
 {
 	*r_indexar = NULL;
@@ -333,7 +333,7 @@ static bool object_hook_index_array(Scene *scene, Object *obedit,
 		}
 		case OB_CURVE:
 		case OB_SURF:
-			ED_curve_editnurb_load(obedit);
+			ED_curve_editnurb_load(bmain, obedit);
 			ED_curve_editnurb_make(obedit);
 			return return_editcurve_indexar(obedit, r_tot, r_indexar, r_cent);
 		case OB_LATTICE:
@@ -473,7 +473,7 @@ static int add_hook_object(Main *bmain, Scene *scene, Object *obedit, Object *ob
 	int tot, ok, *indexar;
 	char name[MAX_NAME];
 
-	ok = object_hook_index_array(scene, obedit, &tot, &indexar, name, cent);
+	ok = object_hook_index_array(bmain, scene, obedit, &tot, &indexar, name, cent);
 
 	if (!ok) {
 		BKE_report(reports, RPT_ERROR, "Requires selected vertices or active vertex group");
@@ -809,6 +809,7 @@ void OBJECT_OT_hook_recenter(wmOperatorType *ot)
 
 static int object_hook_assign_exec(bContext *C, wmOperator *op)
 {
+	Main *bmain = CTX_data_main(C);
 	Scene *scene = CTX_data_scene(C);
 	PointerRNA ptr = CTX_data_pointer_get_type(C, "modifier", &RNA_HookModifier);
 	int num = RNA_enum_get(op->ptr, "modifier");
@@ -826,7 +827,7 @@ static int object_hook_assign_exec(bContext *C, wmOperator *op)
 
 	/* assign functionality */
 
-	if (!object_hook_index_array(scene, ob, &tot, &indexar, name, cent)) {
+	if (!object_hook_index_array(bmain, scene, ob, &tot, &indexar, name, cent)) {
 		BKE_report(op->reports, RPT_WARNING, "Requires selected vertices or active vertex group");
 		return OPERATOR_CANCELLED;
 	}
diff --git a/source/blender/editors/object/object_modifier.c b/source/blender/editors/object/object_modifier.c
index b42732bd25d..368fd4fd98d 100644
--- a/source/blender/editors/object/object_modifier.c
+++ b/source/blender/editors/object/object_modifier.c
@@ -1759,7 +1759,7 @@ static Object *modifier_skin_armature_create(Main *bmain, Scene *scene, Object *
 	MEM_freeN(emap);
 	MEM_freeN(emap_mem);
 
-	ED_armature_from_edit(arm);
+	ED_armature_from_edit(bmain, arm);
 	ED_armature_edit_free(arm);
 
 	return arm_ob;
diff --git a/source/blender/editors/object/object_transform.c b/source/blender/editors/object/object_transform.c
index 19dad374696..fab2396b05a 100644
--- a/source/blender/editors/object/object_transform.c
+++ b/source/blender/editors/object/object_transform.c
@@ -547,7 +547,7 @@ static int apply_objects_internal(
 			BKE_mesh_calc_normals(me);
 		}
 		else if (ob->type == OB_ARMATURE) {
-			ED_armature_transform_apply(ob, mat, do_props);
+			ED_armature_transform_apply(bmain, ob, mat, do_props);
 		}
 		else if (ob->type == OB_LATTICE) {
 			Lattice *lt = ob->data;
@@ -994,7 +994,7 @@ static int object_origin_set_exec(bContext *C, wmOperator *op)
 					/* Function to recenter armatures in editarmature.c
 					 * Bone + object locations are handled there.
 					 */
-					ED_armature_origin_set(scene, ob, cursor, centermode, around);
+					ED_armature_origin_set(bmain, scene, ob, cursor, centermode, around);
 
 					tot_change++;
 					arm->id.tag |= LIB_TAG_DOIT;
diff --git a/source/blender/editors/screen/screen_edit.c b/source/blender/editors/screen/screen_edit.c
index ec1c5511ae8..0e32ec3c34f 100644
--- a/source/blender/editors/screen/screen_edit.c
+++ b/source/blender/editors/screen/screen_edit.c
@@ -459,7 +459,7 @@ ScrArea *area_split(bScreen *sc, ScrArea *sa, char dir, float fac, int merge)
 
 /* empty screen, with 1 dummy area without spacedata */
 /* uses window size */
-bScreen *ED_screen_add(wmWindow *win, Scene *scene, const char *name)
+bScreen *ED_screen_add(Main *bmain, wmWindow *win, Scene *scene, const char *name)
 {
 	const int winsize_x = WM_window_pixels_x(win);
 	const int winsize_y = WM_window_pixels_y(win);
@@ -467,7 +467,7 @@ bScreen *ED_screen_add(wmWindow *win, Scene *scene, const char *name)
 	bScreen *sc;
 	ScrVert *sv1, *sv2, *sv3, *sv4;
 
-	sc = BKE_libblock_alloc(G.main, ID_SCR, name, 0);
+	sc = BKE_libblock_alloc(bmain, ID_SCR, name, 0);
 	sc->scene = scene;
 	sc->do_refresh = true;
 	sc->redraws_flag = TIME_ALL_3D_WIN | TIME_ALL_ANIM_WIN;
@@ -837,14 +837,14 @@ static void screen_test_scale(bScreen *sc, int winsize_x, int winsize_y)
 
 /* ****************** EXPORTED API TO OTHER MODULES *************************** */
 
-bScreen *ED_screen_duplicate(wmWindow *win, bScreen *sc)
+bScreen *ED_screen_duplicate(Main *bmain, wmWindow *win, bScreen *sc)
 {
 	bScreen *newsc;
 
 	if (sc->state != SCREENNORMAL) return NULL;  /* XXX handle this case! */
 
 	/* make new empty screen: */
-	newsc = ED_screen_add(win, sc->scene, sc->id.name + 2);
+	newsc = ED_screen_add(bmain, win, sc->scene, sc->id.name + 2);
 	/* copy all data */
 	screen_copy(newsc, sc);
 
@@ -951,14 +951,14 @@ void ED_screen_refresh(wmWindowManager *wm, wmWindow *win)
 }
 
 /* file read, set all screens, ... */
-void ED_screens_initialize(wmWindowManager *wm)
+void ED_screens_initialize(Main *bmain, wmWindowManager *wm)
 {
 	wmWindow *win;
 
 	for (win = wm->windows.first; win; win = win->next) {
 
 		if (win->screen == NULL)
-			win->screen = G.main->screen.first;
+			win->screen = bmain->screen.first;
 
 		ED_screen_refresh(wm, win);
 	}
@@ -1566,6 +1566,7 @@ void ED_screen_full_restore(bContext *C, ScrArea *sa)
  */
 ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *sa, const short state)
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindowManager *wm = CTX_wm_manager(C);
 	bScreen *sc, *oldscreen;
 	ARegion *ar;
@@ -1648,7 +1649,7 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *sa, const s
 
 		oldscreen->state = state;
 		BLI_snprintf(newname, sizeof(newname), "%s-%s", oldscreen->id.name + 2, "nonnormal");
-		sc = ED_screen_add(win, oldscreen->scene, newname);
+		sc = ED_screen_add(bmain, win, oldscreen->scene, newname);
 		sc->state = state;
 		sc->redraws_flag = oldscreen->redraws_flag;
 		sc->temp = oldscreen->temp;
diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index b3e788a9a13..74656ef8fe0 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -1007,6 +1007,7 @@ static void SCREEN_OT_area_swap(wmOperatorType *ot)
 /* operator callback */
 static int area_dupli_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindow *newwin, *win;
 	bScreen *newsc, *sc;
 	ScrArea *sa;
@@ -1041,7 +1042,7 @@ static int area_dupli_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 	*newwin->stereo3d_format = *win->stereo3d_format;
 
 	/* allocs new screen and adds to newly created window, using window size */
-	newsc = ED_screen_add(newwin, CTX_data_scene(C), sc->id.name + 2);
+	newsc = ED_screen_add(bmain, newwin, CTX_data_scene(C), sc->id.name + 2);
 	newwin->screen = newsc;
 
 	/* copy area to new screen */
@@ -4066,10 +4067,11 @@ static void SCREEN_OT_userpref_show(struct wmOperatorType *ot)
 
 static int screen_new_exec(bContext *C, wmOperator *UNUSED(op))
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindow *win = CTX_wm_window(C);
 	bScreen *sc = CTX_wm_screen(C);
 
-	sc = ED_screen_duplicate(win, sc);
+	sc = ED_screen_duplicate(bmain, win, sc);
 	WM_event_add_notifier(C, NC_SCREEN | ND_SCREENBROWSE, sc);
 
 	return OPERATOR_FINISHED;
diff --git a/source/blender/editors/space_file/filelist.c b/source/blender/editors/space_file/filelist.c
index 0dd0aca48c6..8123bed541c 100644
--- a/source/blender/editors/space_file/filelist.c
+++ b/source/blender/editors/space_file/filelist.c
@@ -2313,7 +2313,7 @@ static int filelist_readjob_list_lib(const char *root, ListBase *entries, const
 #if 0
 /* Kept for reference here, in case we want to add back that feature later. We do not need it currently. */
 /* Code ***NOT*** updated for job stuff! */
-static void filelist_readjob_main_rec(struct FileList *filelist)
+static void filelist_readjob_main_rec(Main *bmain, FileList *filelist)
 {
 	ID *id;
 	FileDirEntry *files, *firstlib = NULL;
@@ -2375,7 +2375,7 @@ static void filelist_readjob_main_rec(struct FileList *filelist)
 		/* make files */
 		idcode = groupname_to_code(filelist->filelist.root);
 
-		lb = which_libbase(G.main, idcode);
+		lb = which_libbase(bmain, idcode);
 		if (lb == NULL) return;
 
 		filelist->filelist.nbr_entries = 0;
diff --git a/source/blender/makesrna/intern/rna_armature.c b/source/blender/makesrna/intern/rna_armature.c
index 7feca708fe8..b2bca9b6c3a 100644
--- a/source/blender/makesrna/intern/rna_armature.c
+++ b/source/blender/makesrna/intern/rna_armature.c
@@ -478,9 +478,9 @@ static int rna_Armature_is_editmode_get(PointerRNA *ptr)
 	return (arm->edbo != NULL);
 }
 
-static void rna_Armature_transform(struct bArmature *arm, float *mat)
+static void rna_Armature_transform(struct bArmature *arm, Main *bmain, float *mat)
 {
-	ED_armature_transform(arm, (float (*)[4])mat, true);
+	ED_armature_transform(bmain, arm, (float (*)[4])mat, true);
 }
 
 #else
@@ -1011,6 +1011,7 @@ static void rna_def_armature(BlenderRNA *brna)
 	RNA_def_struct_sdna(srna, "bArmature");
 
 	func = RNA_def_function(srna, "transform", "rna_Armature_transform");
+	RNA_def_function_flag(func, FUNC_USE_MAIN);
 	RNA_def_function_ui_description(func, "Transform armature bones by a matrix");
 	parm = RNA_def_float_matrix(func, "matrix", 4, 4, NULL, 0.0f, 0.0f, "", "Matrix", 0.0f, 0.0f);
 	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index f3ff88c3200..6939f7d59a1 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -283,7 +283,7 @@ static void rna_Object_active_shape_update(Main *bmain, Scene *scene, PointerRNA
 				break;
 			case OB_CURVE:
 			case OB_SURF:
-				ED_curve_editnurb_load(ob);
+				ED_curve_editnurb_load(bmain, ob);
 				ED_curve_editnurb_make(ob);
 				break;
 			case OB_LATTICE:
diff --git a/source/blender/windowmanager/intern/wm.c b/source/blender/windowmanager/intern/wm.c
index 3fd2aed91f0..a425eadfe21 100644
--- a/source/blender/windowmanager/intern/wm.c
+++ b/source/blender/windowmanager/intern/wm.c
@@ -381,6 +381,7 @@ void WM_keymap_init(bContext *C)
 
 void WM_check(bContext *C)
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindowManager *wm = CTX_wm_manager(C);
 	
 	/* wm context */
@@ -407,7 +408,7 @@ void WM_check(bContext *C)
 	/* case: fileread */
 	/* note: this runs in bg mode to set the screen context cb */
 	if ((wm->initialized & WM_INIT_WINDOW) == 0) {
-		ED_screens_initialize(wm);
+		ED_screens_initialize(bmain, wm);
 		wm->initialized |= WM_INIT_WINDOW;
 	}
 }
diff --git a/source/blender/windowmanager/intern/wm_files.c b/source/blender/windowmanager/intern/wm_files.c
index ffc6a566ced..f1cc4539470 100644
--- a/source/blender/windowmanager/intern/wm_files.c
+++ b/source/blender/windowmanager/intern/wm_files.c
@@ -226,14 +226,14 @@ static void wm_window_substitute_old(wmWindowManager *wm, wmWindow *oldwin, wmWi
  * 4- current wm, and wm in file: try match ghostwin
  */
 
-static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
+static void wm_window_match_do(Main *bmain, bContext *C, ListBase *oldwmlist)
 {
 	wmWindowManager *oldwm, *wm;
 	wmWindow *oldwin, *win;
 	
 	/* cases 1 and 2 */
 	if (BLI_listbase_is_empty(oldwmlist)) {
-		if (G.main->wm.first) {
+		if (bmain->wm.first) {
 			/* nothing todo */
 		}
 		else {
@@ -244,7 +244,7 @@ static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
 		/* cases 3 and 4 */
 		
 		/* we've read file without wm..., keep current one entirely alive */
-		if (BLI_listbase_is_empty(&G.main->wm)) {
+		if (BLI_listbase_is_empty(&bmain->wm)) {
 			bScreen *screen = NULL;
 
 			/* when loading without UI, no matching needed */
@@ -258,7 +258,7 @@ static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
 						if (screen->winid == 0)
 							win->screen = screen;
 						else 
-							win->screen = ED_screen_duplicate(win, screen);
+							win->screen = ED_screen_duplicate(bmain, win, screen);
 						
 						BLI_strncpy(win->screenname, win->screen->id.name + 2, sizeof(win->screenname));
 						win->screen->winid = win->winid;
@@ -266,10 +266,10 @@ static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
 				}
 			}
 			
-			G.main->wm = *oldwmlist;
+			bmain->wm = *oldwmlist;
 			
 			/* screens were read from file! */
-			ED_screens_initialize(G.main->wm.first);
+			ED_screens_initialize(bmain, bmain->wm.first);
 		}
 		else {
 			bool has_match = false;
@@ -277,7 +277,7 @@ static void wm_window_match_do(bContext *C, ListBase *oldwmlist)
 			/* what if old was 3, and loaded 1? */
 			/* this code could move to setup_appdata */
 			oldwm = oldwmlist->first;
-			wm = G.main->wm.first;
+			wm = bmain->wm.first;
 
 			/* preserve key configurations in new wm, to preserve their keymaps */
 			wm->keyconfigs = oldwm->keyconfigs;
@@ -559,7 +559,6 @@ bool WM_file_read(bContext *C, const char *filepath, ReportList *reports)
 	
 	/* we didn't succeed, now try to read Blender file */
 	if (retval == BKE_READ_EXOTIC_OK_BLEND) {
-		Main *bmain = CTX_data_main(C);
 		int G_f = G.f;
 		ListBase wmbase;
 
@@ -570,6 +569,10 @@ bool WM_file_read(bContext *C, const char *filepath, ReportList *reports)
 		/* confusing this global... */
 		G.relbase_valid = 1;
 		retval = BKE_blendfile_read(C, filepath, reports, 0);
+
+		/* BKE_file_read sets new Main into context. */
+		Main *bmain = CTX_data_main(C);
+
 		/* when loading startup.blend's, we can be left with a blank path */
 		if (BKE_main_blendfile_path(bmain)) {
 			G.save_over = 1;
@@ -587,12 +590,12 @@ bool WM_file_read(bContext *C, const char *filepath, ReportList *reports)
 		}
 
 		/* match the read WM with current WM */
-		wm_window_match_do(C, &wmbase);
+		wm_window_match_do(bmain, C, &wmbase);
 		WM_check(C); /* opens window(s), checks keymaps */
 
 		if (retval == BKE_BLENDFILE_READ_OK_USERPREFS) {
 			/* in case a userdef is read from regular .blend */
-			wm_init_userdef(G.main, false);
+			wm_init_userdef(bmain, false);
 		}
 		
 		if (retval != BKE_BLENDFILE_READ_FAIL) {
@@ -856,7 +859,7 @@ int wm_homefile_read(
 	}
 	
 	/* match the read WM with current WM */
-	wm_window_match_do(C, &wmbase); 
+	wm_window_match_do(bmain, C, &wmbase);
 	WM_check(C); /* opens window(s), checks keymaps */
 
 	bmain->name[0] = '\0';
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index c7805184819..b28f845caf5 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -249,6 +249,7 @@ wmWindow *wm_window_new(bContext *C)
 /* part of wm_window.c api */
 wmWindow *wm_window_copy(bContext *C, wmWindow *win_src)
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindow *win_dst = wm_window_new(C);
 	
 	win_dst->posx = win_src->posx + 10;
@@ -257,7 +258,7 @@ wmWindow *wm_window_copy(bContext *C, wmWindow *win_src)
 	win_dst->sizey = win_src->sizey;
 	
 	/* duplicate assigns to window */
-	win_dst->screen = ED_screen_duplicate(win_dst, win_src->screen);
+	win_dst->screen = ED_screen_duplicate(bmain, win_dst, win_src->screen);
 	BLI_strncpy(win_dst->screenname, win_dst->screen->id.name + 2, sizeof(win_dst->screenname));
 	win_dst->screen->winid = win_dst->winid;
 
@@ -793,6 +794,7 @@ wmWindow *WM_window_open(bContext *C, const rcti *rect)
  */
 wmWindow *WM_window_open_temp(bContext *C, int x, int y, int sizex, int sizey, int type)
 {
+	Main *bmain = CTX_data_main(C);
 	wmWindow *win_prev = CTX_wm_window(C);
 	wmWindow *win;
 	ScrArea *sa;
@@ -839,7 +841,7 @@ wmWindow *WM_window_open_temp(bContext *C, int x, int y, int sizex, int sizey, i
 	
 	if (win->screen == NULL) {
 		/* add new screen */
-		win->screen = ED_screen_add(win, scene, "temp");
+		win->screen = ED_screen_add(bmain, win, scene, "temp");
 	}
 	else {
 		/* switch scene for rendering */
diff --git a/source/blenderplayer/bad_level_call_stubs/stubs.c b/source/blenderplayer/bad_level_call_stubs/stubs.c
index ac3d540d358..602b05688b7 100644
--- a/source/blenderplayer/bad_level_call_stubs/stubs.c
+++ b/source/blenderplayer/bad_level_call_stubs/stubs.c
@@ -358,7 +358,7 @@ int WM_enum_search_invoke(struct bContext *C, struct wmOperator *op, const struc
 void WM_event_add_notifier(const struct bContext *C, unsigned int type, void *reference) RET_NONE
 void WM_main_add_notifier(unsigned int type, void *reference) RET_NONE
 void ED_armature_bone_rename(struct bArmature *arm, const char *oldnamep, const char *newnamep) RET_NONE
-void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props) RET_NONE
+void ED_armature_transform(struct Main *bmain, struct bArmature *arm, float mat[4][4], const bool do_props) RET_NONE
 struct wmEventHandler *WM_event_add_modal_handler(struct bContext *C, struct wmOperator *op) RET_NULL
 struct wmTimer *WM_event_add_timer(struct wmWindowManager *wm, struct wmWindow *win, int event_type, double timestep) RET_NULL
 void WM_event_remove_timer(struct wmWindowManager *wm, struct wmWindow *win, struct wmTimer *timer) RET_NONE
@@ -562,7 +562,7 @@ bool ED_transform_snap_object_project_ray_ex(
         float r_loc[3], float r_no[3], int *r_index,
         struct Object **r_ob, float r_obmat[4][4]) RET_ZERO
 
-void ED_curve_editnurb_load(struct Object *obedit) RET_NONE
+void ED_curve_editnurb_load(struct Main *bmain, struct Object *obedit) RET_NONE
 void ED_curve_editnurb_make(struct Object *obedit) RET_NONE
 
 void uiItemR(uiLayout *layout, struct PointerRNA *ptr, const char *propname, int flag, const char *name, int icon) RET_NONE