6 files changed, 14 insertions, 11 deletions
diff --git a/core/bind/core_bind.cpp b/core/bind/core_bind.cpp
index 95f433607c..efd7e3dbf5 100644
--- a/core/bind/core_bind.cpp
+++ b/core/bind/core_bind.cpp
@@ -1266,7 +1266,7 @@ void _OS::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_processor_count"), &_OS::get_processor_count);
 
 	ClassDB::bind_method(D_METHOD("get_executable_path"), &_OS::get_executable_path);
-	ClassDB::bind_method(D_METHOD("execute", "path", "arguments", "blocking", "output", "read_stderr"), &_OS::execute, DEFVAL(Array()), DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("execute", "path", "arguments", "blocking", "output", "read_stderr"), &_OS::execute, DEFVAL(true), DEFVAL(Array()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("kill", "pid"), &_OS::kill);
 	ClassDB::bind_method(D_METHOD("shell_open", "uri"), &_OS::shell_open);
 	ClassDB::bind_method(D_METHOD("get_process_id"), &_OS::get_process_id);
diff --git a/core/bind/core_bind.h b/core/bind/core_bind.h
index 65f20c375e..87da51f97e 100644
--- a/core/bind/core_bind.h
+++ b/core/bind/core_bind.h
@@ -227,7 +227,7 @@ public:
 	int get_low_processor_usage_mode_sleep_usec() const;
 
 	String get_executable_path() const;
-	int execute(const String &p_path, const Vector<String> &p_arguments, bool p_blocking, Array p_output = Array(), bool p_read_stderr = false);
+	int execute(const String &p_path, const Vector<String> &p_arguments, bool p_blocking = true, Array p_output = Array(), bool p_read_stderr = false);
 
 	Error kill(int p_pid);
 	Error shell_open(String p_uri);
diff --git a/core/math/camera_matrix.cpp b/core/math/camera_matrix.cpp
index 165bb9f823..380bae871a 100644
--- a/core/math/camera_matrix.cpp
+++ b/core/math/camera_matrix.cpp
@@ -247,7 +247,7 @@ real_t CameraMatrix::get_z_near() const {
 	return new_plane.d;
 }
 
-void CameraMatrix::get_viewport_size(real_t &r_width, real_t &r_height) const {
+Vector2 CameraMatrix::get_viewport_half_extents() const {
 
 	const real_t *matrix = (const real_t *)this->matrix;
 	///////--- Near Plane ---///////
@@ -273,8 +273,7 @@ void CameraMatrix::get_viewport_size(real_t &r_width, real_t &r_height) const {
 	Vector3 res;
 	near_plane.intersect_3(right_plane, top_plane, &res);
 
-	r_width = res.x;
-	r_height = res.y;
+	return Vector2(res.x, res.y);
 }
 
 bool CameraMatrix::get_endpoints(const Transform &p_transform, Vector3 *p_8points) const {
@@ -563,9 +562,8 @@ CameraMatrix::operator String() const {
 
 real_t CameraMatrix::get_aspect() const {
 
-	real_t w, h;
-	get_viewport_size(w, h);
-	return w / h;
+	Vector2 vp_he = get_viewport_half_extents();
+	return vp_he.x / vp_he.y;
 }
 
 int CameraMatrix::get_pixels_per_meter(int p_for_pixel_width) const {
diff --git a/core/math/camera_matrix.h b/core/math/camera_matrix.h
index 59e34c0855..2eed6d25d6 100644
--- a/core/math/camera_matrix.h
+++ b/core/math/camera_matrix.h
@@ -73,7 +73,7 @@ struct CameraMatrix {
 	Vector<Plane> get_projection_planes(const Transform &p_transform) const;
 
 	bool get_endpoints(const Transform &p_transform, Vector3 *p_8points) const;
-	void get_viewport_size(real_t &r_width, real_t &r_height) const;
+	Vector2 get_viewport_half_extents() const;
 
 	void invert();
 	CameraMatrix inverse() const;
diff --git a/core/os/midi_driver.cpp b/core/os/midi_driver.cpp
index 614ce99b2e..3e020a1585 100644
--- a/core/os/midi_driver.cpp
+++ b/core/os/midi_driver.cpp
@@ -52,7 +52,12 @@ void MIDIDriver::receive_input_packet(uint64_t timestamp, uint8_t *data, uint32_
 	uint32_t param_position = 1;
 
 	if (length >= 1) {
-		if ((data[0] & 0x80) == 0x00) {
+		if (data[0] >= 0xF0) {
+			// channel does not apply to system common messages
+			event->set_channel(0);
+			event->set_message(data[0]);
+			last_received_message = data[0];
+		} else if ((data[0] & 0x80) == 0x00) {
 			// running status
 			event->set_channel(last_received_message & 0xF);
 			event->set_message(last_received_message >> 4);
diff --git a/core/os/os.h b/core/os/os.h
index 69f8f8f134..89b3414b3e 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -267,7 +267,7 @@ public:
 	virtual int get_low_processor_usage_mode_sleep_usec() const;
 
 	virtual String get_executable_path() const;
-	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL) = 0;
+	virtual Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = NULL, String *r_pipe = NULL, int *r_exitcode = NULL, bool read_stderr = false, Mutex *p_pipe_mutex = NULL) = 0;
 	virtual Error kill(const ProcessID &p_pid) = 0;
 	virtual int get_process_id() const;
 	virtual void vibrate_handheld(int p_duration_ms = 500);