From 86ff7f8550703d8636828d7d204e1c8aeeb94432 Mon Sep 17 00:00:00 2001
From: Bastiaan Olij <mux213@gmail.com>
Date: Mon, 23 Aug 2021 15:23:16 +1000
Subject: Adding GDExtension support to XRInterface

---
 modules/mobile_vr/mobile_vr_interface.cpp | 37 +++++++------------------------
 modules/mobile_vr/mobile_vr_interface.h   | 11 +++++----
 2 files changed, 13 insertions(+), 35 deletions(-)

(limited to 'modules/mobile_vr')

diff --git a/modules/mobile_vr/mobile_vr_interface.cpp b/modules/mobile_vr/mobile_vr_interface.cpp
index 590b95ab79..12bb0e5b44 100644
--- a/modules/mobile_vr/mobile_vr_interface.cpp
+++ b/modules/mobile_vr/mobile_vr_interface.cpp
@@ -39,7 +39,7 @@ StringName MobileVRInterface::get_name() const {
 	return "Native mobile";
 };
 
-int MobileVRInterface::get_capabilities() const {
+uint32_t MobileVRInterface::get_capabilities() const {
 	return XRInterface::XR_STEREO;
 };
 
@@ -305,6 +305,10 @@ uint32_t MobileVRInterface::get_view_count() {
 	return 2;
 };
 
+XRInterface::TrackingStatus MobileVRInterface::get_tracking_status() const {
+	return tracking_state;
+}
+
 bool MobileVRInterface::is_initialized() const {
 	return (initialized);
 };
@@ -340,16 +344,16 @@ bool MobileVRInterface::initialize() {
 void MobileVRInterface::uninitialize() {
 	if (initialized) {
 		XRServer *xr_server = XRServer::get_singleton();
-		if (xr_server != nullptr) {
+		if (xr_server != nullptr && xr_server->get_primary_interface() == this) {
 			// no longer our primary interface
-			xr_server->clear_primary_interface_if(this);
+			xr_server->set_primary_interface(nullptr);
 		}
 
 		initialized = false;
 	};
 };
 
-Size2 MobileVRInterface::get_render_targetsize() {
+Size2 MobileVRInterface::get_render_target_size() {
 	_THREAD_SAFE_METHOD_
 
 	// we use half our window size
@@ -429,31 +433,6 @@ CameraMatrix MobileVRInterface::get_projection_for_view(uint32_t p_view, real_t
 	return eye;
 };
 
-void MobileVRInterface::commit_for_eye(XRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) {
-	_THREAD_SAFE_METHOD_
-
-	// We must have a valid render target
-	ERR_FAIL_COND(!p_render_target.is_valid());
-
-	// Because we are rendering to our device we must use our main viewport!
-	ERR_FAIL_COND(p_screen_rect == Rect2());
-
-	Rect2 dest = p_screen_rect;
-	Vector2 eye_center;
-
-	// we output half a screen
-	dest.size.x *= 0.5;
-
-	if (p_eye == XRInterface::EYE_LEFT) {
-		eye_center.x = ((-intraocular_dist / 2.0) + (display_width / 4.0)) / (display_width / 2.0);
-	} else if (p_eye == XRInterface::EYE_RIGHT) {
-		dest.position.x = dest.size.x;
-		eye_center.x = ((intraocular_dist / 2.0) - (display_width / 4.0)) / (display_width / 2.0);
-	}
-	// we don't offset the eye center vertically (yet)
-	eye_center.y = 0.0;
-}
-
 Vector<BlitToScreen> MobileVRInterface::commit_views(RID p_render_target, const Rect2 &p_screen_rect) {
 	_THREAD_SAFE_METHOD_
 
diff --git a/modules/mobile_vr/mobile_vr_interface.h b/modules/mobile_vr/mobile_vr_interface.h
index 0c05dc1ebb..48b76ec187 100644
--- a/modules/mobile_vr/mobile_vr_interface.h
+++ b/modules/mobile_vr/mobile_vr_interface.h
@@ -52,6 +52,7 @@ class MobileVRInterface : public XRInterface {
 
 private:
 	bool initialized = false;
+	XRInterface::TrackingStatus tracking_state;
 	Basis orientation;
 
 	// Just set some defaults for these. At some point we need to look at adding a lookup table for common device + headset combos and/or support reading cardboard QR codes
@@ -131,13 +132,15 @@ public:
 	real_t get_k2() const;
 
 	virtual StringName get_name() const override;
-	virtual int get_capabilities() const override;
+	virtual uint32_t get_capabilities() const override;
+
+	virtual TrackingStatus get_tracking_status() const override;
 
 	virtual bool is_initialized() const override;
 	virtual bool initialize() override;
 	virtual void uninitialize() override;
 
-	virtual Size2 get_render_targetsize() override;
+	virtual Size2 get_render_target_size() override;
 	virtual uint32_t get_view_count() override;
 	virtual Transform3D get_camera_transform() override;
 	virtual Transform3D get_transform_for_view(uint32_t p_view, const Transform3D &p_cam_transform) override;
@@ -145,13 +148,9 @@ public:
 	virtual Vector<BlitToScreen> commit_views(RID p_render_target, const Rect2 &p_screen_rect) override;
 
 	virtual void process() override;
-	virtual void notification(int p_what) override {}
 
 	MobileVRInterface();
 	~MobileVRInterface();
-
-	// deprecated
-	virtual void commit_for_eye(XRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) override;
 };
 
 #endif // !MOBILE_VR_INTERFACE_H
-- 
cgit v1.2.3