Make Servers truly Thread Safe

-Rendering server now uses a split RID allocate/initialize internally, this allows generating RIDs immediately but initialization to happen later on the proper thread (as rendering APIs generally requiere to call on the right thread).
-RenderingServerWrapMT is no more, multithreading is done in RenderingServerDefault.
-Some functions like texture or mesh creation, when renderer supports it, can register and return immediately (so no waiting for server API to flush, and saving staging and command buffer memory).
-3D physics server changed to be made multithread friendly.
-Added PhysicsServer3DWrapMT to use 3D physics server from multiple threads.
-Disablet Bullet (too much effort to make multithread friendly, this needs to be fixed eventually).

1 files changed, 14 insertions, 9 deletions

diff --git a/servers/physics_2d/physics_server_2d_sw.h b/servers/physics_2d/physics_server_2d_sw.h
index 62ea30b3f6..65c5df0fce 100644
--- a/servers/physics_2d/physics_server_2d_sw.h
+++ b/servers/physics_2d/physics_server_2d_sw.h
@@ -61,11 +61,11 @@ class PhysicsServer2DSW : public PhysicsServer2D {
 
 	PhysicsDirectBodyState2DSW *direct_state;
 
-	mutable RID_PtrOwner<Shape2DSW> shape_owner;
-	mutable RID_PtrOwner<Space2DSW> space_owner;
-	mutable RID_PtrOwner<Area2DSW> area_owner;
-	mutable RID_PtrOwner<Body2DSW> body_owner;
-	mutable RID_PtrOwner<Joint2DSW> joint_owner;
+	mutable RID_PtrOwner<Shape2DSW, true> shape_owner;
+	mutable RID_PtrOwner<Space2DSW, true> space_owner;
+	mutable RID_PtrOwner<Area2DSW, true> area_owner;
+	mutable RID_PtrOwner<Body2DSW, true> body_owner;
+	mutable RID_PtrOwner<Joint2DSW, true> joint_owner;
 
 	static PhysicsServer2DSW *singletonsw;
 
@@ -255,15 +255,20 @@ public:
 
 	/* JOINT API */
 
+	virtual RID joint_create() override;
+
+	virtual void joint_clear(RID p_joint) override;
+
 	virtual void joint_set_param(RID p_joint, JointParam p_param, real_t p_value) override;
 	virtual real_t joint_get_param(RID p_joint, JointParam p_param) const override;
 
 	virtual void joint_disable_collisions_between_bodies(RID p_joint, const bool p_disabled) override;
 	virtual bool joint_is_disabled_collisions_between_bodies(RID p_joint) const override;
 
-	virtual RID pin_joint_create(const Vector2 &p_pos, RID p_body_a, RID p_body_b = RID()) override;
-	virtual RID groove_joint_create(const Vector2 &p_a_groove1, const Vector2 &p_a_groove2, const Vector2 &p_b_anchor, RID p_body_a, RID p_body_b) override;
-	virtual RID damped_spring_joint_create(const Vector2 &p_anchor_a, const Vector2 &p_anchor_b, RID p_body_a, RID p_body_b = RID()) override;
+	virtual void joint_make_pin(RID p_joint, const Vector2 &p_anchor, RID p_body_a, RID p_body_b = RID()) override;
+	virtual void joint_make_groove(RID p_joint, const Vector2 &p_a_groove1, const Vector2 &p_a_groove2, const Vector2 &p_b_anchor, RID p_body_a, RID p_body_b) override;
+	virtual void joint_make_damped_spring(RID p_joint, const Vector2 &p_anchor_a, const Vector2 &p_anchor_b, RID p_body_a, RID p_body_b = RID()) override;
+
 	virtual void pin_joint_set_param(RID p_joint, PinJointParam p_param, real_t p_value) override;
 	virtual real_t pin_joint_get_param(RID p_joint, PinJointParam p_param) const override;
 	virtual void damped_spring_joint_set_param(RID p_joint, DampedSpringParam p_param, real_t p_value) override;
@@ -287,7 +292,7 @@ public:
 
 	int get_process_info(ProcessInfo p_info) override;
 
-	PhysicsServer2DSW();
+	PhysicsServer2DSW(bool p_using_threads = false);
 	~PhysicsServer2DSW() {}
 };