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, 9 insertions, 4 deletions

diff --git a/servers/physics_2d/joints_2d_sw.h b/servers/physics_2d/joints_2d_sw.h
index 53e436b539..6050dc2775 100644
--- a/servers/physics_2d/joints_2d_sw.h
+++ b/servers/physics_2d/joints_2d_sw.h
@@ -49,7 +49,12 @@ public:
 	_FORCE_INLINE_ void set_max_bias(real_t p_bias) { max_bias = p_bias; }
 	_FORCE_INLINE_ real_t get_max_bias() const { return max_bias; }
 
-	virtual PhysicsServer2D::JointType get_type() const = 0;
+	virtual bool setup(real_t p_step) { return false; }
+	virtual void solve(real_t p_step) {}
+
+	void copy_settings_from(Joint2DSW *p_joint);
+
+	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_TYPE_MAX; }
 	Joint2DSW(Body2DSW **p_body_ptr = nullptr, int p_body_count = 0) :
 			Constraint2DSW(p_body_ptr, p_body_count) {
 		bias = 0;
@@ -76,7 +81,7 @@ class PinJoint2DSW : public Joint2DSW {
 	real_t softness;
 
 public:
-	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_PIN; }
+	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_TYPE_PIN; }
 
 	virtual bool setup(real_t p_step);
 	virtual void solve(real_t p_step);
@@ -113,7 +118,7 @@ class GrooveJoint2DSW : public Joint2DSW {
 	bool correct;
 
 public:
-	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_GROOVE; }
+	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_TYPE_GROOVE; }
 
 	virtual bool setup(real_t p_step);
 	virtual void solve(real_t p_step);
@@ -146,7 +151,7 @@ class DampedSpringJoint2DSW : public Joint2DSW {
 	real_t v_coef;
 
 public:
-	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_DAMPED_SPRING; }
+	virtual PhysicsServer2D::JointType get_type() const { return PhysicsServer2D::JOINT_TYPE_DAMPED_SPRING; }
 
 	virtual bool setup(real_t p_step);
 	virtual void solve(real_t p_step);