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+/*******************************************************************************
+ 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 2001 - 2004 John Weidman (jweidman@slip.net)
+
+ (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
+ funkyass (funkyass@spam.shaw.ca),
+ Joel Yliluoma (http://iki.fi/bisqwit/)
+ Kris Bleakley (codeviolation@hotmail.com),
+ Matthew Kendora,
+ Nach (n-a-c-h@users.sourceforge.net),
+ Peter Bortas (peter@bortas.org) and
+ zones (kasumitokoduck@yahoo.com)
+
+ C4 x86 assembler and some C emulation code
+ (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
+ _Demo_ (_demo_@zsnes.com), and Nach
+
+ C4 C++ code
+ (c) Copyright 2003 Brad Jorsch
+
+ DSP-1 emulator code
+ (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
+ John Weidman, neviksti (neviksti@hotmail.com),
+ Kris Bleakley, Andreas Naive
+
+ DSP-2 emulator code
+ (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
+ Lord Nightmare (lord_nightmare@users.sourceforge.net
+
+ OBC1 emulator code
+ (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
+ 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, and Dark Force
+
+ S-DD1 C emulator code
+ (c) Copyright 2003 Brad Jorsch with research by
+ Andreas Naive and John Weidman
+
+ S-RTC C emulator code
+ (c) Copyright 2001 John Weidman
+
+ ST010 C++ emulator code
+ (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
+
+ Super FX x86 assembler emulator code
+ (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
+
+ Super FX C emulator code
+ (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
+
+
+ SH assembler code partly based on x86 assembler code
+ (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
+
+
+ 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 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.
+
+ Snes9x is freeware for PERSONAL USE only. Commercial users should
+ seek permission of the copyright holders first. Commercial use includes
+ charging money for Snes9x or software derived from Snes9x.
+
+ 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.
+*******************************************************************************/
+
+#ifndef _NETPLAY_H_
+#define _NETPLAY_H_
+
+/*
+ * Client to server joypad update
+ *
+ * magic 1
+ * sequence_no 1
+ * opcode 1
+ * joypad data 4
+ *
+ * Server to client joypad update
+ * magic 1
+ * sequence_no 1
+ * opcode 1 + num joypads (top 3 bits)
+ * joypad data 4 * n
+ */
+
+//#define NP_DEBUG 1
+
+#define NP_VERSION 10
+#define NP_JOYPAD_HIST_SIZE 120
+#define NP_DEFAULT_PORT 6096
+
+#define NP_MAX_CLIENTS 5
+
+#define NP_SERV_MAGIC 'S'
+#define NP_CLNT_MAGIC 'C'
+
+#define NP_CLNT_HELLO 0
+#define NP_CLNT_JOYPAD 1
+#define NP_CLNT_RESET 2
+#define NP_CLNT_PAUSE 3
+#define NP_CLNT_LOAD_ROM 4
+#define NP_CLNT_ROM_IMAGE 5
+#define NP_CLNT_FREEZE_FILE 6
+#define NP_CLNT_SRAM_DATA 7
+#define NP_CLNT_READY 8
+#define NP_CLNT_LOADED_ROM 9
+#define NP_CLNT_RECEIVED_ROM_IMAGE 10
+#define NP_CLNT_WAITING_FOR_ROM_IMAGE 11
+
+#define NP_SERV_HELLO 0
+#define NP_SERV_JOYPAD 1
+#define NP_SERV_RESET 2
+#define NP_SERV_PAUSE 3
+#define NP_SERV_LOAD_ROM 4
+#define NP_SERV_ROM_IMAGE 5
+#define NP_SERV_FREEZE_FILE 6
+#define NP_SERV_SRAM_DATA 7
+#define NP_SERV_READY 8
+
+struct SNPClient
+{
+ volatile uint8 SendSequenceNum;
+ volatile uint8 ReceiveSequenceNum;
+ volatile bool8 Connected;
+ volatile bool8 SaidHello;
+ volatile bool8 Paused;
+ volatile bool8 Ready;
+ int Socket;
+ char *ROMName;
+ char *HostName;
+ char *Who;
+};
+
+enum {
+ NP_SERVER_SEND_ROM_IMAGE,
+ NP_SERVER_SYNC_ALL,
+ NP_SERVER_SYNC_CLIENT,
+ NP_SERVER_SEND_FREEZE_FILE_ALL,
+ NP_SERVER_SEND_ROM_LOAD_REQUEST_ALL,
+ NP_SERVER_RESET_ALL,
+ NP_SERVER_SEND_SRAM_ALL,
+ NP_SERVER_SEND_SRAM
+};
+
+#define NP_MAX_TASKS 20
+
+struct NPServerTask
+{
+ uint32 Task;
+ void *Data;
+};
+
+struct SNPServer
+{
+ struct SNPClient Clients [NP_MAX_CLIENTS];
+ int NumClients;
+ volatile struct NPServerTask TaskQueue [NP_MAX_TASKS];
+ volatile uint32 TaskHead;
+ volatile uint32 TaskTail;
+ int Socket;
+ uint32 FrameTime;
+ uint32 FrameCount;
+ char ROMName [30];
+ uint32 Joypads [5];
+ bool8 ClientPaused;
+ uint32 Paused;
+ bool8 SendROMImageOnConnect;
+ bool8 SyncByReset;
+};
+
+#define NP_MAX_ACTION_LEN 200
+
+struct SNetPlay
+{
+ volatile uint8 MySequenceNum;
+ volatile uint8 ServerSequenceNum;
+ volatile bool8 Connected;
+ volatile bool8 Abort;
+ volatile uint8 Player;
+ volatile bool8 ClientsReady [NP_MAX_CLIENTS];
+ volatile bool8 ClientsPaused [NP_MAX_CLIENTS];
+ volatile bool8 Paused;
+ volatile bool8 PendingWait4Sync;
+ volatile uint8 PercentageComplete;
+ volatile bool8 Waiting4EmulationThread;
+ volatile bool8 Answer;
+#ifdef __WIN32__
+ HANDLE ReplyEvent;
+#endif
+ volatile int Socket;
+ char *ServerHostName;
+ char *ROMName;
+ int Port;
+ volatile uint32 JoypadWriteInd;
+ volatile uint32 JoypadReadInd;
+ uint32 Joypads [NP_JOYPAD_HIST_SIZE][NP_MAX_CLIENTS];
+ uint32 Frame [NP_JOYPAD_HIST_SIZE];
+ uint32 FrameCount;
+ uint32 MaxFrameSkip;
+ uint32 MaxBehindFrameCount;
+ char ActionMsg [NP_MAX_ACTION_LEN];
+ char ErrorMsg [NP_MAX_ACTION_LEN];
+ char WarningMsg [NP_MAX_ACTION_LEN];
+};
+
+extern "C" struct SNetPlay NetPlay;
+
+//
+// NETPLAY_CLIENT_HELLO message format:
+// header
+// frame_time (4)
+// ROMName (variable)
+
+#define WRITE_LONG(p, v) { \
+*((p) + 0) = (uint8) ((v) >> 24); \
+*((p) + 1) = (uint8) ((v) >> 16); \
+*((p) + 2) = (uint8) ((v) >> 8); \
+*((p) + 3) = (uint8) ((v) >> 0); \
+}
+
+#define READ_LONG(p) \
+((((uint8) *((p) + 0)) << 24) | \
+ (((uint8) *((p) + 1)) << 16) | \
+ (((uint8) *((p) + 2)) << 8) | \
+ (((uint8) *((p) + 3)) << 0))
+
+bool8 S9xNPConnectToServer (const char *server_name, int port,
+ const char *rom_name);
+bool8 S9xNPWaitForHeartBeat ();
+uint32 S9xNPGetJoypad (int which1);
+bool8 S9xNPSendJoypadUpdate (uint32 joypad);
+void S9xNPDisconnect ();
+bool8 S9xNPInitialise ();
+bool8 S9xNPSendData (int fd, const uint8 *data, int len);
+bool8 S9xNPGetData (int fd, uint8 *data, int len);
+
+void S9xNPSyncClients ();
+void S9xNPStepJoypadHistory ();
+
+void S9xNPResetJoypadReadPos ();
+bool8 S9xNPSendReady (uint8 op = NP_CLNT_READY);
+bool8 S9xNPSendPause (bool8 pause);
+void S9xNPReset ();
+void S9xNPSetAction (const char *action, bool8 force = FALSE);
+void S9xNPSetError (const char *error);
+void S9xNPSetWarning (const char *warning);
+void S9xNPDiscardHeartbeats ();
+void S9xNPServerQueueSendingFreezeFile (const char *filename);
+void S9xNPServerQueueSyncAll ();
+void S9xNPServerQueueSendingROMImage ();
+void S9xNPServerQueueSendingLoadROMRequest (const char *filename);
+
+void S9xNPServerAddTask (uint32 task, void *data);
+
+bool8 S9xNPStartServer (int port);
+void S9xNPStopServer ();
+#ifdef __WIN32__
+#define S9xGetMilliTime timeGetTime
+#else
+uint32 S9xGetMilliTime ();
+#endif
+#endif
+
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