gpfce patch part3

[fceu.git] / drivers / pc / sdl-netplay.c

diff --git a/drivers/pc/sdl-netplay.c b/drivers/pc/sdl-netplay.c
new file mode 100644 (file)
index 0000000..38a4c81
--- /dev/null
+++ b/drivers/pc/sdl-netplay.c
@@ -0,0 +1,163 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2001 LULU
+ *  Copyright (C) 2002 Ben Parnell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "sdl.h"
+#include <SDL/SDL_net.h>
+#include "sdl-netplay.h"
+
+char *netplayhost=0;
+
+static int tonowait;
+
+int Port=0xFCE;
+int FDnetplay=0;
+
+
+static SDLNet_SocketSet socketset = NULL;
+static TCPsocket tcpsock = NULL, servsock = NULL;
+
+void cleanup(void)
+{
+    if (tcpsock != NULL) {
+        SDLNet_TCP_DelSocket(socketset, tcpsock);
+        SDLNet_TCP_Close(tcpsock);
+        tcpsock = NULL;
+    }
+    if (servsock != NULL) {
+        SDLNet_TCP_DelSocket(socketset, servsock);
+        SDLNet_TCP_Close(servsock);
+        servsock = NULL;
+    }
+    if (socketset != NULL) {
+        SDLNet_FreeSocketSet(socketset);
+        socketset = NULL;
+    }
+}
+
+int FCEUD_NetworkConnect(void)
+{
+    IPaddress serverIP;
+
+    tonowait=0;
+
+    if (netplay == 2) {
+        /* client */
+        printf("connecting to %s\n", netplayhost);
+
+        SDLNet_ResolveHost(&serverIP, netplayhost, Port);
+        if (serverIP.host == INADDR_NONE) {
+            fprintf(stderr, "Couldn't connected to %s\n", netplayhost);
+            return -1;
+        } else {
+            tcpsock = SDLNet_TCP_Open(&serverIP);
+            if (tcpsock == NULL) {
+                fprintf(stderr, "Couldn't connected to %s\n", netplayhost);
+                return -1;
+            }
+        }
+        printf("connected to %s\n", netplayhost);
+
+        socketset = SDLNet_AllocSocketSet(1);
+        if (socketset == NULL) {
+            fprintf(stderr, "Couldn't create socket set: %s\n",
+                    SDLNet_GetError());
+            return -1;
+        }
+        SDLNet_TCP_AddSocket(socketset, tcpsock);
+
+        return 1;
+    } else {
+        /* server */
+
+        SDLNet_ResolveHost(&serverIP, NULL, Port);
+        printf("Server IP: %x, %d\n", serverIP.host, serverIP.port);
+        servsock = SDLNet_TCP_Open(&serverIP);
+        if (servsock == NULL) {
+            cleanup();
+            fprintf(stderr, "Couldn't create server socket: %s\n",
+                    SDLNet_GetError());
+            return -1;
+        }
+
+        socketset = SDLNet_AllocSocketSet(2);
+        if (socketset == NULL) {
+            fprintf(stderr, "Couldn't create socket set: %s\n",
+                    SDLNet_GetError());
+            return -1;
+        }
+        SDLNet_TCP_AddSocket(socketset, servsock);
+
+        if (SDLNet_CheckSockets(socketset, ~0)) {
+            tcpsock = SDLNet_TCP_Accept(servsock);
+            if (tcpsock == NULL) {
+                return -1;
+            }
+            SDLNet_TCP_AddSocket(socketset, tcpsock);
+
+            printf("OK, connected\n");
+            return 1;
+        }
+    }
+
+    return -1;
+}
+
+void FCEUD_NetworkClose(void)
+{
+    cleanup();
+}
+
+int FCEUD_NetworkRecvData(uint8 *data, uint32 len, int block)
+{
+  if(block)
+  {
+   if(SDLNet_TCP_Recv(tcpsock, (void *) data, len)!=len)
+   {
+    cleanup();
+    return(0);
+   }
+   switch(SDLNet_CheckSockets(socketset,0))
+   {
+    case -1:return(0);
+    case 0:NoWaiting&=~2;tonowait=0;break; 
+    default:if(tonowait>=3)
+            NoWaiting|=2;
+           else tonowait++;
+           break;
+   }
+   return(1);
+  }
+  else
+  {
+   int t=SDLNet_CheckSockets(socketset,0);
+   if(t<0) return(0);
+   if(!t) return(-1);
+   return(SDLNet_TCP_Recv(tcpsock, (void *) data, len)==len);
+  }
+}
+
+/* 0 on failure, 1 on success.  This function should always block. */
+int FCEUD_NetworkSendData(uint8 *Value, uint32 len)
+{
+    if (tcpsock)
+        return(SDLNet_TCP_Send(tcpsock, (void *) Value, len)==len);
+    return 0;
+}