make rfb listen addr/port actually configurable

(also, actually fix the fake argv so that the listen applies.. Null termination!)

crates/retrovnc/src/main.rs

@@ -9,7 +9,7 @@ use retro_frontend::{
 use tracing::Level;
 use tracing_subscriber::FmtSubscriber;
 
-use clap::{arg, command};
+use clap::{arg, command, value_parser};
 
 mod rfb;
 use rfb::*;
@@ -139,6 +139,16 @@ fn main() -> Result<()> {
 		// Not that it matters, but this is only really required for cores that require
 		// content to be loaded; that's most cores, but libretro does support the difference.
 		.arg(arg!(--rom <VALUE>).required(false))
+		.arg(
+			arg!(--rfb_listen <ADDRESS>)
+				.required(false)
+				.default_value("127.0.0.1"),
+		)
+		.arg(
+			arg!(--rfb_port <PORT>)
+				.value_parser(value_parser!(u16))
+				.required(true),
+		)
 		.get_matches();
 
 	let core_path: &String = matches.get_one("core").unwrap();
@@ -149,8 +159,11 @@ fn main() -> Result<()> {
 		// default WxH; this is overridden quickly
 		width: 640,
 		height: 480,
-		listen_address: "127.0.0.1".parse::<Ipv4Addr>()?,
-		listen_port: 6930
+		listen_address: matches
+			.get_one::<String>("rfb_listen")
+			.unwrap()
+			.parse::<Ipv4Addr>()?,
+		listen_port: *matches.get_one::<u16>("rfb_port").unwrap(),
 	};
 
 	// Initalize the app

crates/retrovnc/src/rfb.rs

@@ -27,10 +27,12 @@ impl RfbServer {
 
 			let ip_string = std::ffi::CString::new(config.listen_address.to_string())?;
 
+			info!("?? {:?}", ip_string);
+
 			let argc = 3;
 			let argv: [*const std::ffi::c_char; 3] = [
-				b"RfbServer".as_ptr() as *const i8,
-				b"-listen".as_ptr() as *const i8,
+				b"RfbServer\0".as_ptr() as *const i8,
+				b"-listen\0".as_ptr() as *const i8,
 				ip_string.as_ptr(),
 			];
 
@@ -64,9 +66,11 @@ impl RfbServer {
 			(*screen).newClientHook = Some(Self::connection_callback);
 			(*screen).kbdAddEvent = Some(Self::on_key_callback);
 
+
 			// testing
 			(*screen).port = config.listen_port as i32;
 			(*screen).ipv6port = 0;
+			(*screen).deferUpdateTime = 16;
 
 			ret.resize(config.width, config.height);
 
@@ -93,14 +97,6 @@ impl RfbServer {
 	}
 
 	pub fn update_buffer(&mut self, slice: &[u32], width: u16, height: u16) {
-		// lame slow loop (dont use this sucks)
-		/*
-		for x in 0..width {
-			for y in 0..height {
-				self.framebuffer[(y * width + x) as usize] = slice[(y * width + x) as usize];
-			}
-		}*/
-
 		self.framebuffer.copy_from_slice(&slice);
 
 		unsafe {
@@ -114,6 +110,7 @@ impl RfbServer {
 		}
 	}
 
+	/// Start the server.
 	pub fn start(&mut self) {
 		unsafe {
 			rfb::bindings::rfbInitServerWithPthreadsAndZRLE(self.ptr.as_ptr());
@@ -123,6 +120,14 @@ impl RfbServer {
 		}
 	}
 
+	/// Shutdown the server. This does not destroy the RFB screen, therefore [RfbServer::start] can be
+	/// used to start it back up. (Only dropping the RfbServer will destroy the screen currently.)
+	pub fn shutdown(&mut self) {
+		unsafe {
+			rfb::bindings::rfbShutdownServer(self.ptr.as_ptr(), 1);
+		}
+	}
+
 	pub fn get_buttons(&self) -> [bool; 32] {
 		self.buttons
 	}
@@ -240,6 +245,15 @@ impl RfbServer {
 	}
 }
 
+impl Drop for RfbServer {
+	fn drop(&mut self) {
+		unsafe {
+			// Shut down the server and release resources.
+			rfb::bindings::rfbScreenCleanup(self.ptr.as_ptr());
+		}
+	}
+}
+
 // Logging support
 
 use std::ffi;