--- /dev/null
+/**********************************************************************************
+ Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
+
+ (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
+ Jerremy Koot (jkoot@snes9x.com)
+
+ (c) Copyright 2002 - 2004 Matthew Kendora
+
+ (c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
+
+ (c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
+
+ (c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
+
+ (c) Copyright 2002 - 2006 Brad Jorsch (anomie@users.sourceforge.net),
+ funkyass (funkyass@spam.shaw.ca),
+ Kris Bleakley (codeviolation@hotmail.com),
+ Nach (n-a-c-h@users.sourceforge.net), and
+ zones (kasumitokoduck@yahoo.com)
+
+ BS-X C emulator code
+ (c) Copyright 2005 - 2006 Dreamer Nom,
+ zones
+
+ C4 x86 assembler and some C emulation code
+ (c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
+ Nach,
+ zsKnight (zsknight@zsnes.com)
+
+ C4 C++ code
+ (c) Copyright 2003 - 2006 Brad Jorsch,
+ Nach
+
+ DSP-1 emulator code
+ (c) Copyright 1998 - 2006 _Demo_,
+ Andreas Naive (andreasnaive@gmail.com)
+ Gary Henderson,
+ Ivar (ivar@snes9x.com),
+ John Weidman,
+ Kris Bleakley,
+ Matthew Kendora,
+ Nach,
+ neviksti (neviksti@hotmail.com)
+
+ DSP-2 emulator code
+ (c) Copyright 2003 John Weidman,
+ Kris Bleakley,
+ Lord Nightmare (lord_nightmare@users.sourceforge.net),
+ Matthew Kendora,
+ neviksti
+
+
+ DSP-3 emulator code
+ (c) Copyright 2003 - 2006 John Weidman,
+ Kris Bleakley,
+ Lancer,
+ z80 gaiden
+
+ DSP-4 emulator code
+ (c) Copyright 2004 - 2006 Dreamer Nom,
+ John Weidman,
+ Kris Bleakley,
+ Nach,
+ z80 gaiden
+
+ OBC1 emulator code
+ (c) Copyright 2001 - 2004 zsKnight,
+ pagefault (pagefault@zsnes.com),
+ Kris Bleakley,
+ Ported from x86 assembler to C by sanmaiwashi
+
+ SPC7110 and RTC C++ emulator code
+ (c) Copyright 2002 Matthew Kendora with research by
+ zsKnight,
+ John Weidman,
+ Dark Force
+
+ S-DD1 C emulator code
+ (c) Copyright 2003 Brad Jorsch with research by
+ Andreas Naive,
+ John Weidman
+
+ S-RTC C emulator code
+ (c) Copyright 2001-2006 byuu,
+ John Weidman
+
+ ST010 C++ emulator code
+ (c) Copyright 2003 Feather,
+ John Weidman,
+ Kris Bleakley,
+ Matthew Kendora
+
+ Super FX x86 assembler emulator code
+ (c) Copyright 1998 - 2003 _Demo_,
+ pagefault,
+ zsKnight,
+
+ Super FX C emulator code
+ (c) Copyright 1997 - 1999 Ivar,
+ Gary Henderson,
+ John Weidman
+
+ Sound DSP emulator code is derived from SNEeSe and OpenSPC:
+ (c) Copyright 1998 - 2003 Brad Martin
+ (c) Copyright 1998 - 2006 Charles Bilyue'
+
+ SH assembler code partly based on x86 assembler code
+ (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+
+ 2xSaI filter
+ (c) Copyright 1999 - 2001 Derek Liauw Kie Fa
+
+ HQ2x filter
+ (c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
+
+ Specific ports contains the works of other authors. See headers in
+ individual files.
+
+ Snes9x homepage: http://www.snes9x.com
+
+ Permission to use, copy, modify and/or distribute Snes9x in both binary
+ and source form, for non-commercial purposes, is hereby granted without
+ fee, providing that this license information and copyright notice appear
+ with all copies and any derived work.
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event shall the authors be held liable for any damages
+ arising from the use of this software or it's derivatives.
+
+ Snes9x is freeware for PERSONAL USE only. Commercial users should
+ seek permission of the copyright holders first. Commercial use includes,
+ but is not limited to, charging money for Snes9x or software derived from
+ Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
+ using Snes9x as a promotion for your commercial product.
+
+ The copyright holders request that bug fixes and improvements to the code
+ should be forwarded to them so everyone can benefit from the modifications
+ in future versions.
+
+ Super NES and Super Nintendo Entertainment System are trademarks of
+ Nintendo Co., Limited and its subsidiary companies.
+**********************************************************************************/
+
+#include "port.h"
+
+#ifdef NETPLAY_SUPPORT
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <memory.h>
+#include <sys/types.h>
+
+#ifndef __WIN32__
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+
+#if defined (__WIN32__)
+#include <winsock.h>
+#include <process.h>
+
+#define ioctl ioctlsocket
+#define close closesocket
+#define read(a,b,c) recv(a, b, c, 0)
+#define write(a,b,c) send(a, b, c, 0)
+#else
+
+#include <netdb.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#ifdef __SVR4
+#include <sys/stropts.h>
+#endif
+#endif
+
+#ifdef USE_THREADS
+#include <pthread.h>
+#include <sched.h>
+#include <semaphore.h>
+#endif
+
+#include "snes9x.h"
+#include "cpuexec.h"
+#include "netplay.h"
+#include "memmap.h"
+#include "snapshot.h"
+#include "display.h"
+
+void S9xNPClientLoop (void *);
+bool8 S9xNPLoadROM (uint32 len);
+bool8 S9xNPLoadROMDialog (const char *);
+bool8 S9xNPGetROMImage (uint32 len);
+void S9xNPGetSRAMData (uint32 len);
+void S9xNPGetFreezeFile (uint32 len);
+
+unsigned long START = 0;
+
+bool8 S9xNPConnectToServer (const char *hostname, int port,
+ const char *rom_name)
+{
+ if (!S9xNPInitialise ())
+ return (FALSE);
+
+ S9xNPDisconnect ();
+
+ NetPlay.MySequenceNum = 0;
+ NetPlay.ServerSequenceNum = 0;
+ NetPlay.Connected = FALSE;
+ NetPlay.Abort = FALSE;
+ NetPlay.Player = 0;
+ NetPlay.Paused = FALSE;
+ NetPlay.PercentageComplete = 0;
+ NetPlay.Socket = 0;
+ if (NetPlay.ServerHostName)
+ free ((char *) NetPlay.ServerHostName);
+ NetPlay.ServerHostName = strdup (hostname);
+ if (NetPlay.ROMName)
+ free ((char *) NetPlay.ROMName);
+ NetPlay.ROMName = strdup (rom_name);
+ NetPlay.Port = port;
+ NetPlay.PendingWait4Sync = FALSE;
+
+#ifdef __WIN32__
+ if (GUI.ClientSemaphore == NULL)
+ GUI.ClientSemaphore = CreateSemaphore (NULL, 0, NP_JOYPAD_HIST_SIZE, NULL);
+
+ if (NetPlay.ReplyEvent == NULL)
+ NetPlay.ReplyEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+
+ _beginthread (S9xNPClientLoop, 0, NULL);
+#endif
+
+ return (TRUE);
+}
+
+bool8 S9xNPConnect ()
+{
+ struct sockaddr_in address;
+ struct hostent *hostinfo;
+ unsigned int addr;
+
+ address.sin_family = AF_INET;
+ address.sin_port = htons (NetPlay.Port);
+#ifdef NP_DEBUG
+ printf ("CLIENT: Looking up server's hostname (%s) @%ld\n", NetPlay.ServerHostName, S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Looking up server's hostname...");
+ if ((int) (addr = inet_addr (NetPlay.ServerHostName)) == -1)
+ {
+ if ((hostinfo = gethostbyname (NetPlay.ServerHostName)))
+ {
+ memcpy ((char *)&address.sin_addr, hostinfo->h_addr,
+ hostinfo->h_length);
+ }
+ else
+ {
+ S9xNPSetError ("\
+Unable to look up server's IP address from hostname.\n\n\
+Unknown hostname or may be your nameserver isn't set\n\
+up correctly?");
+ return (FALSE);
+ }
+ }
+ else
+ {
+ memcpy ((char *)&address.sin_addr, &addr, sizeof (addr));
+ }
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Creating socket @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Creating network socket...");
+ if ((NetPlay.Socket = socket (AF_INET, SOCK_STREAM, 0)) < 0)
+ {
+ S9xNPSetError ("Creating network socket failed.");
+ return (FALSE);
+ }
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Trying to connect to server @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Trying to connect to Snes9X server...");
+
+ if (connect (NetPlay.Socket, (struct sockaddr *) &address, sizeof (address)) < 0)
+ {
+ char buf [100];
+#ifdef __WIN32__
+ if (WSAGetLastError () == WSAECONNREFUSED)
+#else
+ if (errno == ECONNREFUSED)
+#endif
+ {
+ S9xNPSetError ("\
+Connection to remote server socket refused:\n\n\
+Is there actually a Snes9X NetPlay server running\n\
+on the remote machine on this port?");
+ }
+ else
+ {
+ sprintf (buf, "Connection to server failed with error number %d",
+#ifdef __WIN32__
+ WSAGetLastError ()
+#else
+ errno
+#endif
+ );
+ S9xNPDisconnect ();
+ }
+ return (FALSE);
+ }
+ NetPlay.Connected = TRUE;
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Sending 'HELLO' message @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Sending 'HELLO' message...");
+ /* Send the server a HELLO packet*/
+ int len = 7 + 4 + strlen (NetPlay.ROMName) + 1;
+ uint8 *tmp = new uint8 [len];
+ uint8 *ptr = tmp;
+
+ *ptr++ = NP_CLNT_MAGIC;
+ *ptr++ = NetPlay.MySequenceNum++;
+ *ptr++ = NP_CLNT_HELLO;
+ WRITE_LONG (ptr, len);
+ ptr += 4;
+#ifdef __WIN32__
+ uint32 ft = Settings.FrameTime * 1000;
+
+ WRITE_LONG (ptr, ft);
+#else
+ WRITE_LONG (ptr, Settings.FrameTime);
+#endif
+ ptr += 4;
+ strcpy ((char *) ptr, NetPlay.ROMName);
+
+ if (!S9xNPSendData (NetPlay.Socket, tmp, len))
+ {
+ S9xNPSetError ("Sending 'HELLO' message failed.");
+ S9xNPDisconnect ();
+ delete tmp;
+ return (FALSE);
+ }
+ delete tmp;
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Waiting for 'WELCOME' reply from server @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Waiting for 'HELLO' reply from server...");
+
+ uint8 header [7];
+
+ if (!S9xNPGetData (NetPlay.Socket, header, 7) ||
+ header [0] != NP_SERV_MAGIC || header [1] != 0 ||
+ (header [2] & 0x1f) != NP_SERV_HELLO)
+ {
+ S9xNPSetError ("Error in 'HELLO' reply packet received from server.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+#ifdef NP_DEBUG
+ printf ("CLIENT: Got 'WELCOME' reply @%ld\n", S9xGetMilliTime () - START);
+#endif
+ len = READ_LONG (&header [3]);
+ if (len > 256)
+ {
+ S9xNPSetError ("Error in 'HELLO' reply packet received from server.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ uint8 *data = new uint8 [len];
+ if (!S9xNPGetData (NetPlay.Socket, data, len - 7))
+ {
+ S9xNPSetError ("Error in 'HELLO' reply packet received from server.");
+ delete data;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+
+ if (data [0] != NP_VERSION)
+ {
+ S9xNPSetError ("\
+The Snes9X NetPlay server implements a different\n\
+version of the protocol. Disconnecting.");
+ delete data;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+
+ NetPlay.FrameCount = READ_LONG (&data [2]);
+
+ if (!(header [2] & 0x80) &&
+ strcmp ((char *) data + 4 + 2, NetPlay.ROMName) != 0)
+ {
+ if (!S9xNPLoadROMDialog ((char *) data + 4 + 2))
+ {
+ delete data;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ }
+ NetPlay.Player = data [1];
+ delete data;
+
+ NetPlay.PendingWait4Sync = TRUE;
+ Settings.NetPlay = TRUE;
+ S9xNPResetJoypadReadPos ();
+ NetPlay.ServerSequenceNum = 1;
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Sending 'READY' to server @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Sending 'READY' to the server...");
+
+ return (S9xNPSendReady ((header [2] & 0x80) ?
+ NP_CLNT_WAITING_FOR_ROM_IMAGE :
+ NP_CLNT_READY));
+}
+
+bool8 S9xNPSendReady (uint8 op)
+{
+ uint8 ready [7];
+ uint8 *ptr = ready;
+ *ptr++ = NP_CLNT_MAGIC;
+ *ptr++ = NetPlay.MySequenceNum++;
+ *ptr++ = op;
+ WRITE_LONG (ptr, 7);
+ ptr += 4;
+
+ if (!S9xNPSendData (NetPlay.Socket, ready, 7))
+ {
+ S9xNPDisconnect ();
+ S9xNPSetError ("Sending 'READY' message failed.");
+ return (FALSE);
+ }
+
+ return (TRUE);
+}
+
+bool8 S9xNPSendPause (bool8 paused)
+{
+#ifdef NP_DEBUG
+ printf ("CLIENT: Pause - %s @%ld\n", paused ? "YES" : "NO", S9xGetMilliTime () - START);
+#endif
+ uint8 pause [7];
+ uint8 *ptr = pause;
+ *ptr++ = NP_CLNT_MAGIC;
+ *ptr++ = NetPlay.MySequenceNum++;
+ *ptr++ = NP_CLNT_PAUSE | (paused ? 0x80 : 0);
+ WRITE_LONG (ptr, 7);
+ ptr += 4;
+
+ if (!S9xNPSendData (NetPlay.Socket, pause, 7))
+ {
+ S9xNPSetError ("Sending 'PAUSE' message failed.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+
+ return (TRUE);
+}
+
+#ifdef __WIN32__
+void S9xNPClientLoop (void *)
+{
+ NetPlay.Waiting4EmulationThread = FALSE;
+
+ if (S9xNPConnect ())
+ {
+ S9xClearPause (PAUSE_NETPLAY_CONNECT);
+ while (NetPlay.Connected)
+ {
+ if (S9xNPWaitForHeartBeat ())
+ {
+ LONG prev;
+ if (!ReleaseSemaphore (GUI.ClientSemaphore, 1, &prev))
+ {
+#ifdef NP_DEBUG
+ printf ("CLIENT: ReleaseSemaphore failed - already hit max count (%d) %ld\n", NP_JOYPAD_HIST_SIZE, S9xGetMilliTime () - START);
+#endif
+ S9xNPSetWarning ("NetPlay: Client may be out of sync with server.");
+ }
+ else
+ {
+ if (!NetPlay.Waiting4EmulationThread &&
+ prev == (int) NetPlay.MaxBehindFrameCount)
+ {
+ NetPlay.Waiting4EmulationThread = TRUE;
+ S9xNPSendPause (TRUE);
+ }
+ }
+ }
+ else
+ S9xNPDisconnect ();
+ }
+ }
+ else
+ {
+ S9xClearPause (PAUSE_NETPLAY_CONNECT);
+ }
+#ifdef NP_DEBUG
+ printf ("CLIENT: Client thread exiting @%ld\n", S9xGetMilliTime () - START);
+#endif
+}
+#endif
+
+bool8 S9xNPWaitForHeartBeat ()
+{
+ uint8 header [3 + 4 + 4 * 5];
+
+ while (S9xNPGetData (NetPlay.Socket, header, 3 + 4))
+ {
+ if (header [0] != NP_SERV_MAGIC)
+ {
+ S9xNPSetError ("Bad magic value from server while waiting for heart-beat message\n");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ if (header [1] != NetPlay.ServerSequenceNum)
+ {
+ char buf [200];
+ sprintf (buf, "Unexpected message sequence number from server, expected %d, got %d\n", NetPlay.ServerSequenceNum, header [1]);
+ S9xNPSetWarning (buf);
+ NetPlay.ServerSequenceNum = header [1] + 1;
+ }
+ else
+ NetPlay.ServerSequenceNum++;
+
+ if ((header [2] & 0x1f) == NP_SERV_JOYPAD)
+ {
+ // Top 2 bits + 1 of opcode is joypad data count.
+ int num = (header [2] >> 6) + 1;
+
+ if (num)
+ {
+ if (!S9xNPGetData (NetPlay.Socket, header + 3 + 4, num * 4))
+ {
+ S9xNPSetError ("Error while receiving 'JOYPAD' message.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ }
+ NetPlay.Frame [NetPlay.JoypadWriteInd] = READ_LONG (&header [3]);
+
+ for (int i = 0; i < num; i++)
+ {
+ NetPlay.Joypads [NetPlay.JoypadWriteInd][i] =
+ READ_LONG (&header [3 + 4 + i * sizeof (uint32)]);
+ }
+ NetPlay.Paused = (header [2] & 0x20) != 0;
+
+ NetPlay.JoypadWriteInd = (NetPlay.JoypadWriteInd + 1) % NP_JOYPAD_HIST_SIZE;
+
+ if (NetPlay.JoypadWriteInd != (NetPlay.JoypadReadInd + 1) % NP_JOYPAD_HIST_SIZE)
+ {
+ //printf ("(%d)", (NetPlay.JoypadWriteInd - NetPlay.JoypadReadInd) % NP_JOYPAD_HIST_SIZE); fflush (stdout);
+ }
+//printf ("CLIENT: HB: @%d\n", S9xGetMilliTime () - START);
+ return (TRUE);
+ }
+ else
+ {
+ uint32 len = READ_LONG (&header [3]);
+ switch (header [2] & 0x1f)
+ {
+ case NP_SERV_RESET:
+#ifdef NP_DEBUG
+ printf ("CLIENT: RESET received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDiscardHeartbeats ();
+ S9xReset ();
+ NetPlay.FrameCount = READ_LONG (&header [3]);
+ S9xNPResetJoypadReadPos ();
+ S9xNPSendReady ();
+ break;
+ case NP_SERV_PAUSE:
+ NetPlay.Paused = (header [2] & 0x20) != 0;
+ break;
+ case NP_SERV_LOAD_ROM:
+#ifdef NP_DEBUG
+ printf ("CLIENT: LOAD_ROM received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDiscardHeartbeats ();
+ if (S9xNPLoadROM (len - 7))
+ S9xNPSendReady (NP_CLNT_LOADED_ROM);
+ break;
+ case NP_SERV_ROM_IMAGE:
+#ifdef NP_DEBUG
+ printf ("CLIENT: ROM_IMAGE received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDiscardHeartbeats ();
+ if (S9xNPGetROMImage (len - 7))
+ S9xNPSendReady (NP_CLNT_RECEIVED_ROM_IMAGE);
+ break;
+ case NP_SERV_SRAM_DATA:
+#ifdef NP_DEBUG
+ printf ("CLIENT: SRAM_DATA received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDiscardHeartbeats ();
+ S9xNPGetSRAMData (len - 7);
+ break;
+ case NP_SERV_FREEZE_FILE:
+#ifdef NP_DEBUG
+ printf ("CLIENT: FREEZE_FILE received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDiscardHeartbeats ();
+ S9xNPGetFreezeFile (len - 7);
+ S9xNPResetJoypadReadPos ();
+ S9xNPSendReady ();
+ break;
+ default:
+#ifdef NP_DEBUG
+ printf ("CLIENT: UNKNOWN received @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ }
+ }
+
+ S9xNPDisconnect ();
+ return (FALSE);
+}
+
+bool8 S9xNPLoadROMDialog (const char *rom_name)
+{
+ NetPlay.Answer = FALSE;
+
+#ifdef __WIN32__
+ ResetEvent (NetPlay.ReplyEvent);
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Asking GUI thread to open ROM load dialog...\n");
+#endif
+
+ PostMessage (GUI.hWnd, WM_USER + 3, (uint32) rom_name, (uint32) rom_name);
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Waiting for reply from GUI thread...\n");
+#endif
+
+ WaitForSingleObject (NetPlay.ReplyEvent, INFINITE);
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Got reply from GUI thread (%d)\n", NetPlay.Answer);
+#endif
+#endif
+
+ return (NetPlay.Answer);
+}
+
+bool8 S9xNPLoadROM (uint32 len)
+{
+ uint8 *data = new uint8 [len];
+
+ S9xNPSetAction ("Receiving ROM name...");
+ if (!S9xNPGetData (NetPlay.Socket, data, len))
+ {
+ S9xNPSetError ("Error while receiving ROM name.");
+ delete data;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+
+ S9xNPSetAction ("Opening LoadROM dialog...");
+ if (!S9xNPLoadROMDialog ((char *) data))
+ {
+ S9xNPSetError ("Disconnected from NetPlay server because you are playing a different game!");
+ delete data;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ delete data;
+ return (TRUE);
+}
+
+bool8 S9xNPGetROMImage (uint32 len)
+{
+ uint8 rom_info [5];
+
+ S9xNPSetAction ("Receiving ROM information...");
+ if (!S9xNPGetData (NetPlay.Socket, rom_info, 5))
+ {
+ S9xNPSetError ("Error while receiving ROM information.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ uint32 CalculatedSize = READ_LONG (&rom_info [1]);
+#ifdef NP_DEBUG
+ printf ("CLIENT: Hi-ROM: %s, Size: %04x\n", rom_info [0] ? "Y" : "N", CalculatedSize);
+#endif
+ if (CalculatedSize + 5 >= len ||
+ CalculatedSize >= CMemory::MAX_ROM_SIZE)
+ {
+ S9xNPSetError ("Size error in ROM image data received from server.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+
+ Memory.HiROM = rom_info [0];
+ Memory.LoROM = !Memory.HiROM;
+ Memory.HeaderCount = 0;
+ Memory.CalculatedSize = CalculatedSize;
+
+ // Load up ROM image
+#ifdef NP_DEBUG
+ printf ("CLIENT: Receiving ROM image @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Receiving ROM image...");
+ if (!S9xNPGetData (NetPlay.Socket, Memory.ROM, Memory.CalculatedSize))
+ {
+ S9xNPSetError ("Error while receiving ROM image from server.");
+ Settings.StopEmulation = TRUE;
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+#ifdef NP_DEBUG
+ printf ("CLIENT: Receiving ROM filename @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Receiving ROM filename...");
+ uint32 filename_len = len - Memory.CalculatedSize - 5;
+ if (filename_len > _MAX_PATH ||
+ !S9xNPGetData (NetPlay.Socket, (uint8 *) Memory.ROMFilename, filename_len))
+ {
+ S9xNPSetError ("Error while receiving ROM filename from server.");
+ S9xNPDisconnect ();
+ Settings.StopEmulation = TRUE;
+ return (FALSE);
+ }
+ Memory.InitROM (FALSE);
+ S9xReset ();
+ S9xNPResetJoypadReadPos ();
+ Settings.StopEmulation = FALSE;
+
+#ifdef __WIN32__
+ PostMessage (GUI.hWnd, WM_NULL, 0, 0);
+#endif
+
+ return (TRUE);
+}
+
+void S9xNPGetSRAMData (uint32 len)
+{
+ if (len > 0x10000)
+ {
+ S9xNPSetError ("Length error in S-RAM data received from server.");
+ S9xNPDisconnect ();
+ return;
+ }
+ S9xNPSetAction ("Receiving S-RAM data...");
+ if (len > 0 && !S9xNPGetData (NetPlay.Socket, ::SRAM, len))
+ {
+ S9xNPSetError ("Error while receiving S-RAM data from server.");
+ S9xNPDisconnect ();
+ }
+}
+
+void S9xNPGetFreezeFile (uint32 len)
+{
+ uint8 frame_count [4];
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Receiving freeze file information @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Receiving freeze file information...");
+ if (!S9xNPGetData (NetPlay.Socket, frame_count, 4))
+ {
+ S9xNPSetError ("Error while receiving freeze file information from server.");
+ S9xNPDisconnect ();
+ return;
+ }
+ NetPlay.FrameCount = READ_LONG (frame_count);
+
+#ifdef NP_DEBUG
+ printf ("CLIENT: Receiving freeze file @%ld...\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Receiving freeze file...");
+ uint8 *data = new uint8 [len];
+ if (!S9xNPGetData (NetPlay.Socket, data, len - 4))
+ {
+ S9xNPSetError ("Error while receiving freeze file from server.");
+ S9xNPDisconnect ();
+ delete data;
+ return;
+ }
+
+ //FIXME: Setting umask here wouldn't hurt.
+ FILE *file;
+#ifdef HAVE_MKSTEMP
+ int fd;
+ char fname[] = "/tmp/snes9x_fztmpXXXXXX";
+ if ((fd = mkstemp(fname)) < 0)
+ {
+ if ((file = fdopen (fd, "wb")))
+#else
+ char fname [L_tmpnam];
+ if (tmpnam (fname))
+ {
+ if ((file = fopen (fname, "wb")))
+#endif
+ {
+ if (fwrite (data, 1, len, file) == len)
+ {
+ fclose(file);
+ if (!S9xUnfreezeGame (fname))
+ S9xNPSetError ("Unable to load freeze file just received.");
+ } else {
+ S9xNPSetError ("Failed to write to temporary freeze file.");
+ fclose (file);
+ }
+ } else
+ S9xNPSetError ("Failed to create temporary freeze file.");
+ remove (fname);
+ } else
+ S9xNPSetError ("Unable to get name for temporary freeze file.");
+ delete data;
+}
+
+uint32 S9xNPGetJoypad (int which1)
+{
+ if (Settings.NetPlay && which1 < 5)
+ return (NetPlay.Joypads [NetPlay.JoypadReadInd][which1]);
+
+ return (0);
+}
+
+void S9xNPStepJoypadHistory ()
+{
+ if ((NetPlay.JoypadReadInd + 1) % NP_JOYPAD_HIST_SIZE != NetPlay.JoypadWriteInd)
+ {
+ NetPlay.JoypadReadInd = (NetPlay.JoypadReadInd + 1) % NP_JOYPAD_HIST_SIZE;
+ if (NetPlay.FrameCount != NetPlay.Frame [NetPlay.JoypadReadInd])
+ {
+ S9xNPSetWarning ("This Snes9X session may be out of sync with the server.");
+#ifdef NP_DEBUG
+ printf ("*** CLIENT: client out of sync with server (%d, %d) @%ld\n", NetPlay.FrameCount, NetPlay.Frame [NetPlay.JoypadReadInd], S9xGetMilliTime () - START);
+#endif
+ }
+ }
+ else
+ {
+#ifdef NP_DEBUG
+ printf ("*** CLIENT: S9xNPStepJoypadHistory NOT OK@%ld\n", S9xGetMilliTime () - START);
+#endif
+ }
+}
+
+
+void S9xNPResetJoypadReadPos ()
+{
+#ifdef NP_DEBUG
+ printf ("CLIENT: ResetJoyReadPos @%ld\n", S9xGetMilliTime () - START); fflush (stdout);
+#endif
+ NetPlay.JoypadWriteInd = 0;
+ NetPlay.JoypadReadInd = NP_JOYPAD_HIST_SIZE - 1;
+ for (int h = 0; h < NP_JOYPAD_HIST_SIZE; h++)
+ memset ((void *) &NetPlay.Joypads [h], 0, sizeof (NetPlay.Joypads [0]));
+}
+
+bool8 S9xNPSendJoypadUpdate (uint32 joypad)
+{
+ uint8 data [7];
+ uint8 *ptr = data;
+
+ *ptr++ = NP_CLNT_MAGIC;
+ *ptr++ = NetPlay.MySequenceNum++;
+ *ptr++ = NP_CLNT_JOYPAD;
+
+ joypad |= 0x80000000;
+
+ WRITE_LONG (ptr, joypad);
+ if (!S9xNPSendData (NetPlay.Socket, data, 7))
+ {
+ S9xNPSetError ("Error while sending joypad data server.");
+ S9xNPDisconnect ();
+ return (FALSE);
+ }
+ return (TRUE);
+}
+
+void S9xNPDisconnect ()
+{
+ close (NetPlay.Socket);
+ NetPlay.Socket = -1;
+ NetPlay.Connected = FALSE;
+ Settings.NetPlay = FALSE;
+}
+
+bool8 S9xNPSendData (int socket, const uint8 *data, int length)
+{
+ int len = length;
+ const uint8 *ptr = data;
+
+ NetPlay.PercentageComplete = 0;
+
+ do
+ {
+ if (NetPlay.Abort)
+ return (FALSE);
+
+ int num_bytes = len;
+
+ // Write the data in small chunks, allowing this thread to spot an
+ // abort request from another thread.
+ if (num_bytes > 512)
+ num_bytes = 512;
+
+ int sent = write (socket, (char *) ptr, num_bytes);
+ if (sent < 0)
+ {
+ if (errno == EINTR
+#ifdef EAGAIN
+ || errno == EAGAIN
+#endif
+#ifdef EWOULDBLOCK
+ || errno == EWOULDBLOCK
+#endif
+ )
+ {
+#ifdef NP_DEBUG
+ printf ("CLIENT: EINTR, EAGAIN or EWOULDBLOCK while sending data @%ld\n", S9xGetMilliTime () - START);
+#endif
+ continue;
+ }
+ return (FALSE);
+ }
+ else
+ if (sent == 0)
+ return (FALSE);
+ len -= sent;
+ ptr += sent;
+
+ NetPlay.PercentageComplete = (uint8) (((length - len) * 100) / length);
+ } while (len > 0);
+
+ return (TRUE);
+}
+
+bool8 S9xNPGetData (int socket, uint8 *data, int length)
+{
+ int len = length;
+ uint8 *ptr = data;
+ int chunk = length / 50;
+
+ if (chunk < 1024)
+ chunk = 1024;
+
+ NetPlay.PercentageComplete = 0;
+ do
+ {
+ if (NetPlay.Abort)
+ return (FALSE);
+
+ int num_bytes = len;
+
+ // Read the data in small chunks, allowing this thread to spot an
+ // abort request from another thread.
+ if (num_bytes > chunk)
+ num_bytes = chunk;
+
+ int got = read (socket, (char *) ptr, num_bytes);
+ if (got < 0)
+ {
+ if (errno == EINTR
+#ifdef EAGAIN
+ || errno == EAGAIN
+#endif
+#ifdef EWOULDBLOCK
+ || errno == EWOULDBLOCK
+#endif
+#ifdef WSAEWOULDBLOCK
+ || errno == WSAEWOULDBLOCK
+#endif
+ )
+ {
+#ifdef NP_DEBUG
+ printf ("CLIENT: EINTR, EAGAIN or EWOULDBLOCK while receiving data @%ld\n", S9xGetMilliTime () - START);
+#endif
+ continue;
+ }
+#ifdef WSAEMSGSIZE
+ if (errno != WSAEMSGSIZE)
+ return (FALSE);
+ else
+ {
+ got = num_bytes;
+#ifdef NP_DEBUG
+ printf ("CLIENT: WSAEMSGSIZE, actual bytes %d while receiving data @%ld\n", got, S9xGetMilliTime () - START);
+#endif
+ }
+#else
+ return (FALSE);
+#endif
+ }
+ else
+ if (got == 0)
+ return (FALSE);
+
+ len -= got;
+ ptr += got;
+
+ if (!Settings.NetPlayServer && length > 1024)
+ {
+ NetPlay.PercentageComplete = (uint8) (((length - len) * 100) / length);
+#ifdef __WIN32__
+ PostMessage (GUI.hWnd, WM_USER, NetPlay.PercentageComplete,
+ NetPlay.PercentageComplete);
+ Sleep (0);
+#endif
+ }
+
+ } while (len > 0);
+
+ return (TRUE);
+}
+
+bool8 S9xNPInitialise ()
+{
+#ifdef __WIN32__
+ static bool8 initialised = FALSE;
+
+ if (!initialised)
+ {
+ initialised = TRUE;
+ WSADATA data;
+
+#ifdef NP_DEBUG
+ START = S9xGetMilliTime ();
+
+ printf ("CLIENT/SERVER: Initialising WinSock @%ld\n", S9xGetMilliTime () - START);
+#endif
+ S9xNPSetAction ("Initialising Windows sockets interface...");
+ if (WSAStartup (MAKEWORD (1, 0), &data) != 0)
+ {
+ S9xNPSetError ("Call to init Windows sockets failed. Do you have WinSock2 installed?");
+ return (FALSE);
+ }
+ }
+#endif
+ return (TRUE);
+}
+
+void S9xNPDiscardHeartbeats ()
+{
+ // Discard any pending heartbeats and wait for any frame that is currently
+ // being emulated to complete.
+#ifdef NP_DEBUG
+ printf ("CLIENT: DiscardHeartbeats @%ld, finished @", S9xGetMilliTime () - START);
+ fflush (stdout);
+#endif
+
+#ifdef __WIN32__
+ while (WaitForSingleObject (GUI.ClientSemaphore, 200) == WAIT_OBJECT_0)
+ ;
+#endif
+
+#ifdef NP_DEBUG
+ printf ("%ld\n", S9xGetMilliTime () - START);
+#endif
+ NetPlay.Waiting4EmulationThread = FALSE;
+}
+
+void S9xNPSetAction (const char *action, bool8 force)
+{
+ if (force || !Settings.NetPlayServer)
+ {
+ strncpy (NetPlay.ActionMsg, action, NP_MAX_ACTION_LEN - 1);
+ NetPlay.ActionMsg [NP_MAX_ACTION_LEN - 1] = 0;
+#ifdef __WIN32__
+ PostMessage (GUI.hWnd, WM_USER, 0, 0);
+ Sleep (0);
+#endif
+ }
+}
+
+void S9xNPSetError (const char *error)
+{
+ strncpy (NetPlay.ErrorMsg, error, NP_MAX_ACTION_LEN - 1);
+ NetPlay.ErrorMsg [NP_MAX_ACTION_LEN - 1] = 0;
+#ifdef __WIN32
+ PostMessage (GUI.hWnd, WM_USER + 1, 0, 0);
+ Sleep (0);
+#endif
+}
+
+void S9xNPSetWarning (const char *warning)
+{
+ strncpy (NetPlay.WarningMsg, warning, NP_MAX_ACTION_LEN - 1);
+ NetPlay.WarningMsg [NP_MAX_ACTION_LEN - 1] = 0;
+#ifdef __WIN32__
+ PostMessage (GUI.hWnd, WM_USER + 2, 0, 0);
+ Sleep (0);
+#endif
+}
+#endif
+
+
projects / drnoksnes / commitdiff