Bsd: Fix NullReferenceException in BsdSockAddr.FromIPEndPoint() (#3652)

* Bsd: Fix NullReferenceException in BsdSockAddr.FromIPEndPoint()

Allows "Victor Vran Overkill Edition" to boot with guest internet access enabled.
Thanks to EmulationFanatic for testing this for me!

* Bsd: Return proper error code if RemoteEndPoint is null

* Remove whitespace from empty line

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

Ryujinx.HLE/HOS/Services/Sockets/Bsd/IClient.cs

@@ -573,14 +573,18 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
 
             LinuxError errno  = LinuxError.EBADF;
             ISocket    socket = _context.RetrieveSocket(socketFd);
-
             if (socket != null)
             {
-                errno = LinuxError.SUCCESS;
+                errno = LinuxError.ENOTCONN;
 
-                WriteSockAddr(context, bufferPosition, socket, true);
-                WriteBsdResult(context, 0, errno);
-                context.ResponseData.Write(Unsafe.SizeOf<BsdSockAddr>());
+                if (socket.RemoteEndPoint != null)
+                {
+                    errno = LinuxError.SUCCESS;
+
+                    WriteSockAddr(context, bufferPosition, socket, true);
+                    WriteBsdResult(context, 0, errno);
+                    context.ResponseData.Write(Unsafe.SizeOf<BsdSockAddr>());
+                }
             }
 
             return WriteBsdResult(context, 0, errno);
@@ -903,4 +907,4 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Bsd
             return WriteBsdResult(context, newSockFd, errno);
         }
     }
-}
+}

Ryujinx.HLE/HOS/Services/SurfaceFlinger/SurfaceFlinger.cs

@@ -35,6 +35,7 @@ namespace Ryujinx.HLE.HOS.Services.SurfaceFlinger
         private long _1msTicks;
 
         private int _swapInterval;
+        private int _swapIntervalDelay;
 
         private readonly object Lock = new object();
 
@@ -91,7 +92,7 @@ namespace Ryujinx.HLE.HOS.Services.SurfaceFlinger
             }
             else
             {
-                _ticksPerFrame = Stopwatch.Frequency / (TargetFps / _swapInterval);
+                _ticksPerFrame = Stopwatch.Frequency / TargetFps;
             }
         }
 
@@ -322,7 +323,13 @@ namespace Ryujinx.HLE.HOS.Services.SurfaceFlinger
 
                     if (_ticks >= _ticksPerFrame)
                     {
-                        Compose();
+                        if (_swapIntervalDelay-- == 0)
+                        {
+                            Compose();
+
+                            // When a frame is presented, delay the next one by its swap interval value.
+                            _swapIntervalDelay = Math.Max(0, _swapInterval - 1);
+                        }
 
                         _device.System?.SignalVsync();