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snes9x/unix/unix.cpp
Brandon Wright 1661fc838c Add copyrights.
2016-10-15 11:31:26 -05:00

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/***********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
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 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
(c) Copyright 2002 - 2011 zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
(c) Copyright 2009 - 2016 BearOso,
OV2
(c) Copyright 2011 - 2016 Hans-Kristian Arntzen,
Daniel De Matteis
(Under no circumstances will commercial rights be given)
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 used in 1.39-1.51
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
SPC7110 and RTC C++ emulator code used in 1.52+
(c) Copyright 2009 byuu,
neviksti
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 emulator code used in 1.5-1.51
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
Sound emulator code used in 1.52+
(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
S-SMP emulator code used in 1.54+
(c) Copyright 2016 byuu
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, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
NTSC filter
(c) Copyright 2006 - 2007 Shay Green
GTK+ GUI code
(c) Copyright 2004 - 2016 BearOso
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
(c) Copyright 2009 - 2016 OV2
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2011 zones
Libretro port
(c) Copyright 2011 - 2016 Hans-Kristian Arntzen,
Daniel De Matteis
(Under no circumstances will commercial rights be given)
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 <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <fcntl.h>
#include <dirent.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef USE_THREADS
#include <sched.h>
#include <pthread.h>
#endif
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifndef NOSOUND
#include <sys/soundcard.h>
#include <sys/mman.h>
#endif
#ifdef JOYSTICK_SUPPORT
#include <linux/joystick.h>
#endif
#include "snes9x.h"
#include "memmap.h"
#include "apu/apu.h"
#include "gfx.h"
#include "snapshot.h"
#include "controls.h"
#include "cheats.h"
#include "movie.h"
#include "logger.h"
#include "display.h"
#include "conffile.h"
#ifdef NETPLAY_SUPPORT
#include "netplay.h"
#endif
#ifdef DEBUGGER
#include "debug.h"
#endif
#include "statemanager.h"
#ifdef NETPLAY_SUPPORT
#ifdef _DEBUG
#define NP_DEBUG 2
#endif
#endif
typedef std::pair<std::string, std::string> strpair_t;
ConfigFile::secvec_t keymaps;
StateManager stateMan;
#define FIXED_POINT 0x10000
#define FIXED_POINT_SHIFT 16
#define FIXED_POINT_REMAINDER 0xffff
#define SOUND_BUFFER_SIZE (1024 * 16)
#define SOUND_BUFFER_SIZE_MASK (SOUND_BUFFER_SIZE - 1)
static volatile bool8 block_signal = FALSE;
static volatile bool8 block_generate_sound = FALSE;
static const char *sound_device = NULL;
static const char *s9x_base_dir = NULL,
*rom_filename = NULL,
*snapshot_filename = NULL,
*play_smv_filename = NULL,
*record_smv_filename = NULL;
static char default_dir[PATH_MAX + 1];
static const char dirNames[13][32] =
{
"", // DEFAULT_DIR
"", // HOME_DIR
"", // ROMFILENAME_DIR
"rom", // ROM_DIR
"sram", // SRAM_DIR
"savestate", // SNAPSHOT_DIR
"screenshot", // SCREENSHOT_DIR
"spc", // SPC_DIR
"cheat", // CHEAT_DIR
"patch", // IPS_DIR
"bios", // BIOS_DIR
"log", // LOG_DIR
""
};
struct SUnixSettings
{
bool8 JoystickEnabled;
bool8 ThreadSound;
uint32 SoundBufferSize;
uint32 SoundFragmentSize;
uint32 rewindBufferSize;
uint32 rewindGranularity;
};
struct SoundStatus
{
int sound_fd;
uint32 fragment_size;
uint32 err_counter;
uint32 err_rate;
int32 samples_mixed_so_far;
int32 play_position;
};
static SUnixSettings unixSettings;
static SoundStatus so;
static bool8 rewinding;
#ifndef NOSOUND
static uint8 Buf[SOUND_BUFFER_SIZE];
#endif
#ifdef USE_THREADS
static pthread_t thread;
static pthread_mutex_t mutex;
#endif
#ifdef JOYSTICK_SUPPORT
static uint8 js_mod[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
static int js_fd[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
static const char *js_device[8] = { "/dev/js0", "/dev/js1", "/dev/js2", "/dev/js3", "/dev/js4", "/dev/js5", "/dev/js6", "/dev/js7" };
static bool8 js_unplugged[8] = { FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE };
#endif
#ifdef NETPLAY_SUPPORT
static uint32 joypads[8];
static uint32 old_joypads[8];
#endif
bool8 S9xMapDisplayInput (const char *, s9xcommand_t *);
s9xcommand_t S9xGetDisplayCommandT (const char *);
char * S9xGetDisplayCommandName (s9xcommand_t);
void S9xHandleDisplayCommand (s9xcommand_t, int16, int16);
bool S9xDisplayPollButton (uint32, bool *);
bool S9xDisplayPollAxis (uint32, int16 *);
bool S9xDisplayPollPointer (uint32, int16 *, int16 *);
static long log2 (long);
static void SoundTrigger (void);
static void InitTimer (void);
static void NSRTControllerSetup (void);
static int make_snes9x_dirs (void);
#ifndef NOSOUND
static void * S9xProcessSound (void *);
#endif
#ifdef JOYSTICK_SUPPORT
static void InitJoysticks (void);
static void ReadJoysticks (void);
#endif
void _splitpath (const char *path, char *drive, char *dir, char *fname, char *ext)
{
*drive = 0;
const char *slash = strrchr(path, SLASH_CHAR),
*dot = strrchr(path, '.');
if (dot && slash && dot < slash)
dot = NULL;
if (!slash)
{
*dir = 0;
strcpy(fname, path);
if (dot)
{
fname[dot - path] = 0;
strcpy(ext, dot + 1);
}
else
*ext = 0;
}
else
{
strcpy(dir, path);
dir[slash - path] = 0;
strcpy(fname, slash + 1);
if (dot)
{
fname[dot - slash - 1] = 0;
strcpy(ext, dot + 1);
}
else
*ext = 0;
}
}
void _makepath (char *path, const char *, const char *dir, const char *fname, const char *ext)
{
if (dir && *dir)
{
strcpy(path, dir);
strcat(path, SLASH_STR);
}
else
*path = 0;
strcat(path, fname);
if (ext && *ext)
{
strcat(path, ".");
strcat(path, ext);
}
}
static long log2 (long num)
{
long n = 0;
while (num >>= 1)
n++;
return (n);
}
void S9xExtraUsage (void)
{
/* 12345678901234567890123456789012345678901234567890123456789012345678901234567890 */
S9xMessage(S9X_INFO, S9X_USAGE, "-multi Enable multi cartridge system");
S9xMessage(S9X_INFO, S9X_USAGE, "-carta <filename> ROM in slot A (use with -multi)");
S9xMessage(S9X_INFO, S9X_USAGE, "-cartb <filename> ROM in slot B (use with -multi)");
S9xMessage(S9X_INFO, S9X_USAGE, "");
#ifdef JOYSTICK_SUPPORT
S9xMessage(S9X_INFO, S9X_USAGE, "-nogamepad Disable gamepad reading");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev1 <string> Specify gamepad device 1");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev1 <string> Specify gamepad device 2");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev1 <string> Specify gamepad device 3");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev1 <string> Specify gamepad device 4");
S9xMessage(S9X_INFO, S9X_USAGE, "");
#endif
#ifdef USE_THREADS
S9xMessage(S9X_INFO, S9X_USAGE, "-threadsound Use a separate thread to output sound");
#endif
S9xMessage(S9X_INFO, S9X_USAGE, "-buffersize Sound generating buffer size in millisecond");
S9xMessage(S9X_INFO, S9X_USAGE, "-fragmentsize Sound playback buffer fragment size in bytes");
S9xMessage(S9X_INFO, S9X_USAGE, "-sounddev <string> Specify sound device");
S9xMessage(S9X_INFO, S9X_USAGE, "");
S9xMessage(S9X_INFO, S9X_USAGE, "-loadsnapshot Load snapshot file at start");
S9xMessage(S9X_INFO, S9X_USAGE, "-playmovie <filename> Start emulator playing the .smv file");
S9xMessage(S9X_INFO, S9X_USAGE, "-recordmovie <filename> Start emulator recording the .smv file");
S9xMessage(S9X_INFO, S9X_USAGE, "-dumpstreams Save audio/video data to disk");
S9xMessage(S9X_INFO, S9X_USAGE, "-dumpmaxframes <num> Stop emulator after saving specified number of");
S9xMessage(S9X_INFO, S9X_USAGE, " frames (use with -dumpstreams)");
S9xMessage(S9X_INFO, S9X_USAGE, "");
S9xMessage(S9X_INFO, S9X_USAGE, "-rwbuffersize Rewind buffer size in MB");
S9xMessage(S9X_INFO, S9X_USAGE, "-rwgranularity Rewind granularity in frames");
S9xMessage(S9X_INFO, S9X_USAGE, "");
S9xExtraDisplayUsage();
}
void S9xParseArg (char **argv, int &i, int argc)
{
if (!strcasecmp(argv[i], "-multi"))
Settings.Multi = TRUE;
else
if (!strcasecmp(argv[i], "-carta"))
{
if (i + 1 < argc)
strncpy(Settings.CartAName, argv[++i], _MAX_PATH);
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-cartb"))
{
if (i + 1 < argc)
strncpy(Settings.CartBName, argv[++i], _MAX_PATH);
else
S9xUsage();
}
else
#ifdef JOYSTICK_SUPPORT
if (!strcasecmp(argv[i], "-nogamepad"))
unixSettings.JoystickEnabled = FALSE;
else
if (!strncasecmp(argv[i], "-paddev", 7) &&
argv[i][7] >= '1' && argv[i][7] <= '8' && argv[i][8] == '\0')
{
int j = argv[i][7] - '1';
if (i + 1 < argc)
js_device[j] = argv[++i];
else
S9xUsage();
}
else
#endif
#ifdef USE_THREADS
if (!strcasecmp(argv[i], "-threadsound"))
unixSettings.ThreadSound = TRUE;
else
#endif
if (!strcasecmp(argv[i], "-buffersize"))
{
if (i + 1 < argc)
unixSettings.SoundBufferSize = atoi(argv[++i]);
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-fragmentsize"))
{
if (i + 1 < argc)
unixSettings.SoundFragmentSize = atoi(argv[++i]);
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-sounddev"))
{
if (i + 1 < argc)
sound_device = argv[++i];
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-loadsnapshot"))
{
if (i + 1 < argc)
snapshot_filename = argv[++i];
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-playmovie"))
{
if (i + 1 < argc)
play_smv_filename = argv[++i];
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-recordmovie"))
{
if (i + 1 < argc)
record_smv_filename = argv[++i];
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-dumpstreams"))
Settings.DumpStreams = TRUE;
else
if (!strcasecmp(argv[i], "-dumpmaxframes"))
Settings.DumpStreamsMaxFrames = atoi(argv[++i]);
else
if (!strcasecmp(argv[i], "-rwbuffersize"))
{
if (i + 1 < argc)
unixSettings.rewindBufferSize = atoi(argv[++i]);
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-rwgranularity"))
{
if (i + 1 < argc)
unixSettings.rewindGranularity = atoi(argv[++i]);
else
S9xUsage();
}
else
S9xParseDisplayArg(argv, i, argc);
}
static void NSRTControllerSetup (void)
{
if (!strncmp((const char *) Memory.NSRTHeader + 24, "NSRT", 4))
{
// First plug in both, they'll change later as needed
S9xSetController(0, CTL_JOYPAD, 0, 0, 0, 0);
S9xSetController(1, CTL_JOYPAD, 1, 0, 0, 0);
switch (Memory.NSRTHeader[29])
{
case 0x00: // Everything goes
break;
case 0x10: // Mouse in Port 0
S9xSetController(0, CTL_MOUSE, 0, 0, 0, 0);
break;
case 0x01: // Mouse in Port 1
S9xSetController(1, CTL_MOUSE, 1, 0, 0, 0);
break;
case 0x03: // Super Scope in Port 1
S9xSetController(1, CTL_SUPERSCOPE, 0, 0, 0, 0);
break;
case 0x06: // Multitap in Port 1
S9xSetController(1, CTL_MP5, 1, 2, 3, 4);
break;
case 0x66: // Multitap in Ports 0 and 1
S9xSetController(0, CTL_MP5, 0, 1, 2, 3);
S9xSetController(1, CTL_MP5, 4, 5, 6, 7);
break;
case 0x08: // Multitap in Port 1, Mouse in new Port 1
S9xSetController(1, CTL_MOUSE, 1, 0, 0, 0);
// There should be a toggle here for putting in Multitap instead
break;
case 0x04: // Pad or Super Scope in Port 1
S9xSetController(1, CTL_SUPERSCOPE, 0, 0, 0, 0);
// There should be a toggle here for putting in a pad instead
break;
case 0x05: // Justifier - Must ask user...
S9xSetController(1, CTL_JUSTIFIER, 1, 0, 0, 0);
// There should be a toggle here for how many justifiers
break;
case 0x20: // Pad or Mouse in Port 0
S9xSetController(0, CTL_MOUSE, 0, 0, 0, 0);
// There should be a toggle here for putting in a pad instead
break;
case 0x22: // Pad or Mouse in Port 0 & 1
S9xSetController(0, CTL_MOUSE, 0, 0, 0, 0);
S9xSetController(1, CTL_MOUSE, 1, 0, 0, 0);
// There should be a toggles here for putting in pads instead
break;
case 0x24: // Pad or Mouse in Port 0, Pad or Super Scope in Port 1
// There should be a toggles here for what to put in, I'm leaving it at gamepad for now
break;
case 0x27: // Pad or Mouse in Port 0, Pad or Mouse or Super Scope in Port 1
// There should be a toggles here for what to put in, I'm leaving it at gamepad for now
break;
// Not Supported yet
case 0x99: // Lasabirdie
break;
case 0x0A: // Barcode Battler
break;
}
}
}
void S9xParsePortConfig (ConfigFile &conf, int pass)
{
s9x_base_dir = conf.GetStringDup("Unix::BaseDir", default_dir);
snapshot_filename = conf.GetStringDup("Unix::SnapshotFilename", NULL);
play_smv_filename = conf.GetStringDup("Unix::PlayMovieFilename", NULL);
record_smv_filename = conf.GetStringDup("Unix::RecordMovieFilename", NULL);
#ifdef JOYSTICK_SUPPORT
unixSettings.JoystickEnabled = conf.GetBool ("Unix::EnableGamePad", true);
js_device[0] = conf.GetStringDup("Unix::PadDevice1", NULL);
js_device[1] = conf.GetStringDup("Unix::PadDevice2", NULL);
js_device[2] = conf.GetStringDup("Unix::PadDevice3", NULL);
js_device[3] = conf.GetStringDup("Unix::PadDevice4", NULL);
js_device[4] = conf.GetStringDup("Unix::PadDevice5", NULL);
js_device[5] = conf.GetStringDup("Unix::PadDevice6", NULL);
js_device[6] = conf.GetStringDup("Unix::PadDevice7", NULL);
js_device[7] = conf.GetStringDup("Unix::PadDevice8", NULL);
#endif
#ifdef USE_THREADS
unixSettings.ThreadSound = conf.GetBool ("Unix::ThreadSound", false);
#endif
unixSettings.SoundBufferSize = conf.GetUInt ("Unix::SoundBufferSize", 100);
unixSettings.SoundFragmentSize = conf.GetUInt ("Unix::SoundFragmentSize", 2048);
sound_device = conf.GetStringDup("Unix::SoundDevice", "/dev/dsp");
keymaps.clear();
if (!conf.GetBool("Unix::ClearAllControls", false))
{
#if 0
// Using an axis to control Pseudo-pointer #1
keymaps.push_back(strpair_t("J00:Axis0", "AxisToPointer 1h Var"));
keymaps.push_back(strpair_t("J00:Axis1", "AxisToPointer 1v Var"));
keymaps.push_back(strpair_t("PseudoPointer1", "Pointer C=2 White/Black Superscope"));
#elif 0
// Using an Axis for Pseudo-buttons
keymaps.push_back(strpair_t("J00:Axis0", "AxisToButtons 1/0 T=50%"));
keymaps.push_back(strpair_t("J00:Axis1", "AxisToButtons 3/2 T=50%"));
keymaps.push_back(strpair_t("PseudoButton0", "Joypad1 Right"));
keymaps.push_back(strpair_t("PseudoButton1", "Joypad1 Left"));
keymaps.push_back(strpair_t("PseudoButton2", "Joypad1 Down"));
keymaps.push_back(strpair_t("PseudoButton3", "Joypad1 Up"));
#else
// Using 'Joypad# Axis'
keymaps.push_back(strpair_t("J00:Axis0", "Joypad1 Axis Left/Right T=50%"));
keymaps.push_back(strpair_t("J00:Axis1", "Joypad1 Axis Up/Down T=50%"));
#endif
keymaps.push_back(strpair_t("J00:B0", "Joypad1 X"));
keymaps.push_back(strpair_t("J00:B1", "Joypad1 A"));
keymaps.push_back(strpair_t("J00:B2", "Joypad1 B"));
keymaps.push_back(strpair_t("J00:B3", "Joypad1 Y"));
#if 1
keymaps.push_back(strpair_t("J00:B6", "Joypad1 L"));
#else
// Show off joypad-meta
keymaps.push_back(strpair_t("J00:X+B6", "JS1 Meta1"));
keymaps.push_back(strpair_t("J00:M1+B1", "Joypad1 Turbo A"));
#endif
keymaps.push_back(strpair_t("J00:B7", "Joypad1 R"));
keymaps.push_back(strpair_t("J00:B8", "Joypad1 Select"));
keymaps.push_back(strpair_t("J00:B11", "Joypad1 Start"));
}
std::string section = S9xParseDisplayConfig(conf, 1);
ConfigFile::secvec_t sec = conf.GetSection((section + " Controls").c_str());
for (ConfigFile::secvec_t::iterator c = sec.begin(); c != sec.end(); c++)
keymaps.push_back(*c);
}
static int make_snes9x_dirs (void)
{
if (strlen(s9x_base_dir) + 1 + sizeof(dirNames[0]) > PATH_MAX + 1)
return (-1);
mkdir(s9x_base_dir, 0755);
for (int i = 0; i < LAST_DIR; i++)
{
if (dirNames[i][0])
{
char s[PATH_MAX + 1];
snprintf(s, PATH_MAX + 1, "%s%s%s", s9x_base_dir, SLASH_STR, dirNames[i]);
mkdir(s, 0755);
}
}
return (0);
}
const char * S9xGetDirectory (enum s9x_getdirtype dirtype)
{
static char s[PATH_MAX + 1];
if (dirNames[dirtype][0])
snprintf(s, PATH_MAX + 1, "%s%s%s", s9x_base_dir, SLASH_STR, dirNames[dirtype]);
else
{
switch (dirtype)
{
case DEFAULT_DIR:
strncpy(s, s9x_base_dir, PATH_MAX + 1);
s[PATH_MAX] = 0;
break;
case HOME_DIR:
strncpy(s, getenv("HOME"), PATH_MAX + 1);
s[PATH_MAX] = 0;
break;
case ROMFILENAME_DIR:
strncpy(s, Memory.ROMFilename, PATH_MAX + 1);
s[PATH_MAX] = 0;
for (int i = strlen(s); i >= 0; i--)
{
if (s[i] == SLASH_CHAR)
{
s[i] = 0;
break;
}
}
break;
default:
s[0] = 0;
break;
}
}
return (s);
}
const char * S9xGetFilename (const char *ex, enum s9x_getdirtype dirtype)
{
static char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
snprintf(s, PATH_MAX + 1, "%s%s%s%s", S9xGetDirectory(dirtype), SLASH_STR, fname, ex);
return (s);
}
const char * S9xGetFilenameInc (const char *ex, enum s9x_getdirtype dirtype)
{
static char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
unsigned int i = 0;
const char *d;
struct stat buf;
_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
d = S9xGetDirectory(dirtype);
do
snprintf(s, PATH_MAX + 1, "%s%s%s.%03d%s", d, SLASH_STR, fname, i++, ex);
while (stat(s, &buf) == 0 && i < 1000);
return (s);
}
const char * S9xBasename (const char *f)
{
const char *p;
if ((p = strrchr(f, '/')) != NULL || (p = strrchr(f, '\\')) != NULL)
return (p + 1);
return (f);
}
const char * S9xChooseFilename (bool8 read_only)
{
char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
const char *filename;
char title[64];
_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
snprintf(s, PATH_MAX + 1, "%s.frz", fname);
sprintf(title, "%s snapshot filename", read_only ? "Select load" : "Choose save");
S9xSetSoundMute(TRUE);
filename = S9xSelectFilename(s, S9xGetDirectory(SNAPSHOT_DIR), "frz", title);
S9xSetSoundMute(FALSE);
return (filename);
}
const char * S9xChooseMovieFilename (bool8 read_only)
{
char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
const char *filename;
char title[64];
_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
snprintf(s, PATH_MAX + 1, "%s.smv", fname);
sprintf(title, "Choose movie %s filename", read_only ? "playback" : "record");
S9xSetSoundMute(TRUE);
filename = S9xSelectFilename(s, S9xGetDirectory(HOME_DIR), "smv", title);
S9xSetSoundMute(FALSE);
return (filename);
}
bool8 S9xOpenSnapshotFile (const char *filename, bool8 read_only, STREAM *file)
{
char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
_splitpath(filename, drive, dir, fname, ext);
if (*drive || *dir == SLASH_CHAR || (strlen(dir) > 1 && *dir == '.' && *(dir + 1) == SLASH_CHAR))
{
strncpy(s, filename, PATH_MAX + 1);
s[PATH_MAX] = 0;
}
else
snprintf(s, PATH_MAX + 1, "%s%s%s", S9xGetDirectory(SNAPSHOT_DIR), SLASH_STR, fname);
if (!*ext && strlen(s) <= PATH_MAX - 4)
strcat(s, ".frz");
if ((*file = OPEN_STREAM(s, read_only ? "rb" : "wb")))
return (TRUE);
return (FALSE);
}
void S9xCloseSnapshotFile (STREAM file)
{
CLOSE_STREAM(file);
}
bool8 S9xInitUpdate (void)
{
return (TRUE);
}
bool8 S9xDeinitUpdate (int width, int height)
{
S9xPutImage(width, height);
return (TRUE);
}
bool8 S9xContinueUpdate (int width, int height)
{
return (TRUE);
}
void S9xToggleSoundChannel (int c)
{
static uint8 sound_switch = 255;
if (c == 8)
sound_switch = 255;
else
sound_switch ^= 1 << c;
S9xSetSoundControl(sound_switch);
}
void S9xAutoSaveSRAM (void)
{
Memory.SaveSRAM(S9xGetFilename(".srm", SRAM_DIR));
}
void S9xSyncSpeed (void)
{
#ifndef NOSOUND
if (Settings.SoundSync)
{
while (!S9xSyncSound())
usleep(0);
}
#endif
if (Settings.DumpStreams)
return;
#ifdef NETPLAY_SUPPORT
if (Settings.NetPlay && NetPlay.Connected)
{
#if defined(NP_DEBUG) && NP_DEBUG == 2
printf("CLIENT: SyncSpeed @%d\n", S9xGetMilliTime());
#endif
S9xNPSendJoypadUpdate(old_joypads[0]);
for (int J = 0; J < 8; J++)
joypads[J] = S9xNPGetJoypad(J);
if (!S9xNPCheckForHeartBeat())
{
NetPlay.PendingWait4Sync = !S9xNPWaitForHeartBeatDelay(100);
#if defined(NP_DEBUG) && NP_DEBUG == 2
if (NetPlay.PendingWait4Sync)
printf("CLIENT: PendingWait4Sync1 @%d\n", S9xGetMilliTime());
#endif
IPPU.RenderThisFrame = TRUE;
IPPU.SkippedFrames = 0;
}
else
{
NetPlay.PendingWait4Sync = !S9xNPWaitForHeartBeatDelay(200);
#if defined(NP_DEBUG) && NP_DEBUG == 2
if (NetPlay.PendingWait4Sync)
printf("CLIENT: PendingWait4Sync2 @%d\n", S9xGetMilliTime());
#endif
if (IPPU.SkippedFrames < NetPlay.MaxFrameSkip)
{
IPPU.RenderThisFrame = FALSE;
IPPU.SkippedFrames++;
}
else
{
IPPU.RenderThisFrame = TRUE;
IPPU.SkippedFrames = 0;
}
}
if (!NetPlay.PendingWait4Sync)
{
NetPlay.FrameCount++;
S9xNPStepJoypadHistory();
}
return;
}
#endif
if (Settings.HighSpeedSeek > 0)
Settings.HighSpeedSeek--;
if (Settings.TurboMode)
{
if ((++IPPU.FrameSkip >= Settings.TurboSkipFrames) && !Settings.HighSpeedSeek)
{
IPPU.FrameSkip = 0;
IPPU.SkippedFrames = 0;
IPPU.RenderThisFrame = TRUE;
}
else
{
IPPU.SkippedFrames++;
IPPU.RenderThisFrame = FALSE;
}
return;
}
static struct timeval next1 = { 0, 0 };
struct timeval now;
while (gettimeofday(&now, NULL) == -1) ;
// If there is no known "next" frame, initialize it now.
if (next1.tv_sec == 0)
{
next1 = now;
next1.tv_usec++;
}
// If we're on AUTO_FRAMERATE, we'll display frames always only if there's excess time.
// Otherwise we'll display the defined amount of frames.
unsigned limit = (Settings.SkipFrames == AUTO_FRAMERATE) ? (timercmp(&next1, &now, <) ? 10 : 1) : Settings.SkipFrames;
IPPU.RenderThisFrame = (++IPPU.SkippedFrames >= limit) ? TRUE : FALSE;
if (IPPU.RenderThisFrame)
IPPU.SkippedFrames = 0;
else
{
// If we were behind the schedule, check how much it is.
if (timercmp(&next1, &now, <))
{
unsigned lag = (now.tv_sec - next1.tv_sec) * 1000000 + now.tv_usec - next1.tv_usec;
if (lag >= 500000)
{
// More than a half-second behind means probably pause.
// The next line prevents the magic fast-forward effect.
next1 = now;
}
}
}
// Delay until we're completed this frame.
// Can't use setitimer because the sound code already could be using it. We don't actually need it either.
while (timercmp(&next1, &now, >))
{
// If we're ahead of time, sleep a while.
unsigned timeleft = (next1.tv_sec - now.tv_sec) * 1000000 + next1.tv_usec - now.tv_usec;
usleep(timeleft);
while (gettimeofday(&now, NULL) == -1) ;
// Continue with a while-loop because usleep() could be interrupted by a signal.
}
// Calculate the timestamp of the next frame.
next1.tv_usec += Settings.FrameTime;
if (next1.tv_usec >= 1000000)
{
next1.tv_sec += next1.tv_usec / 1000000;
next1.tv_usec %= 1000000;
}
}
bool8 S9xMapInput (const char *n, s9xcommand_t *cmd)
{
int i, j, d;
char *c;
char buf[4] = "M1+";
if (!strncmp(n, "PseudoPointer", 13) && n[13] >= '1' && n[13] <= '8' && n[14] == '\0')
return (S9xMapPointer(PseudoPointerBase + (n[13] - '1'), *cmd, false));
if (!strncmp(n, "PseudoButton", 12) && isdigit(n[12]) && (j = strtol(n + 12, &c, 10)) < 256 && (c == NULL || *c == '\0'))
return (S9xMapButton(PseudoButtonBase + j, *cmd, false));
if (n[0] != 'J' || !isdigit(n[1]) || !isdigit(n[2]) || n[3] != ':')
goto unrecog;
d = ((n[1] - '0') * 10 + (n[2] - '0')) << 24;
d |= 0x80000000;
i = 4;
if (!strncmp(n + i, "X+", 2))
{
d |= 0x4000;
i += 2;
}
else
{
for (buf[1] = '1'; buf[1] <= '8'; buf[1]++)
{
if (!strncmp(n + i, buf, 3))
{
d |= 1 << (buf[1] - '1' + 16);
i += 3;
}
}
}
if (!strncmp(n + i, "Axis", 4))
{
d |= 0x8000;
i += 4;
}
else
if (n[i] == 'B')
i++;
else
goto unrecog;
d |= j = strtol(n + i, &c, 10);
if ((c != NULL && *c != '\0') || j > 0x3fff)
goto unrecog;
if (d & 0x8000)
return (S9xMapAxis(d, *cmd, false));
return (S9xMapButton(d, *cmd, false));
unrecog:
return (S9xMapDisplayInput(n, cmd));
}
bool S9xPollButton (uint32 id, bool *pressed)
{
return (S9xDisplayPollButton(id, pressed));
}
bool S9xPollAxis (uint32 id, int16 *value)
{
return (S9xDisplayPollAxis(id, value));
}
bool S9xPollPointer (uint32 id, int16 *x, int16 *y)
{
return (S9xDisplayPollPointer(id, x, y));
}
s9xcommand_t S9xGetPortCommandT (const char *n)
{
s9xcommand_t cmd;
cmd.type = S9xBadMapping;
cmd.multi_press = 0;
cmd.button_norpt = 0;
cmd.port[0] = 0;
cmd.port[1] = 0;
cmd.port[2] = 0;
cmd.port[3] = 0;
if (!strncmp(n, "JS", 2) && n[2] >= '1' && n[2] <= '8')
{
if (!strncmp(n + 3, " Meta", 5) && n[8] >= '1' && n[8] <= '8' && n[9] == '\0')
{
cmd.type = S9xButtonPort;
cmd.port[1] = 0;
cmd.port[2] = n[2] - '1';
cmd.port[3] = 1 << (n[8] - '1');
return (cmd);
}
else
if (!strncmp(n + 3, " ToggleMeta", 11) && n[14] >= '1' && n[14] <= '8' && n[15] == '\0')
{
cmd.type = S9xButtonPort;
cmd.port[1] = 1;
cmd.port[2] = n[2] - '1';
cmd.port[3] = 1 << (n[13] - '1');
return (cmd);
}
} else
if (!strcmp(n,"Rewind"))
{
cmd.type = S9xButtonPort;
cmd.port[1] = 2;
return (cmd);
}
return (S9xGetDisplayCommandT(n));
}
char * S9xGetPortCommandName (s9xcommand_t cmd)
{
std::string x;
switch (cmd.type)
{
case S9xButtonPort:
if (cmd.port[0] != 0)
break;
switch (cmd.port[1])
{
case 0:
x = "JS";
x += (int) cmd.port[2];
x += " Meta";
x += (int) cmd.port[3];
return (strdup(x.c_str()));
case 1:
x = "JS";
x += (int) cmd.port[2];
x += " ToggleMeta";
x += (int) cmd.port[3];
return (strdup(x.c_str()));
case 2:
return (strdup("Rewind"));
}
break;
case S9xAxisPort:
break;
case S9xPointerPort:
break;
}
return (S9xGetDisplayCommandName(cmd));
}
void S9xHandlePortCommand (s9xcommand_t cmd, int16 data1, int16 data2)
{
#ifdef JOYSTICK_SUPPORT
switch (cmd.type)
{
case S9xButtonPort:
if (cmd.port[0] != 0)
break;
switch (cmd.port[1])
{
case 0:
if (data1)
js_mod[cmd.port[2]] |= cmd.port[3];
else
js_mod[cmd.port[2]] &= ~cmd.port[3];
break;
case 1:
if (data1)
js_mod[cmd.port[2]] ^= cmd.port[3];
break;
case 2:
rewinding = (bool8) data1;
break;
}
break;
case S9xAxisPort:
break;
case S9xPointerPort:
break;
}
S9xHandleDisplayCommand(cmd, data1, data2);
#endif
}
void S9xSetupDefaultKeymap (void)
{
s9xcommand_t cmd;
S9xUnmapAllControls();
for (ConfigFile::secvec_t::iterator i = keymaps.begin(); i != keymaps.end(); i++)
{
cmd = S9xGetPortCommandT(i->second.c_str());
if (cmd.type == S9xBadMapping)
{
cmd = S9xGetCommandT(i->second.c_str());
if (cmd.type == S9xBadMapping)
{
std::string s("Unrecognized command '");
s += i->second + "'";
perror(s.c_str());
continue;
}
}
if (!S9xMapInput(i->first.c_str(), &cmd))
{
std::string s("Could not map '");
s += i->second + "' to '" + i->first + "'";
perror(s.c_str());
continue;
}
}
keymaps.clear();
}
void S9xInitInputDevices (void)
{
#ifdef JOYSTICK_SUPPORT
InitJoysticks();
#endif
}
#ifdef JOYSTICK_SUPPORT
static void InitJoysticks (void)
{
#ifdef JSIOCGVERSION
int version;
unsigned char axes, buttons;
if ((js_fd[0] = open(js_device[0], O_RDONLY | O_NONBLOCK)) == -1)
{
fprintf(stderr, "joystick: No joystick found.\n");
return;
}
if (ioctl(js_fd[0], JSIOCGVERSION, &version) == -1)
{
fprintf(stderr, "joystick: You need at least driver version 1.0 for joystick support.\n");
close(js_fd[0]);
return;
}
for (int i = 1; i < 8; i++)
js_fd[i] = open(js_device[i], O_RDONLY | O_NONBLOCK);
#ifdef JSIOCGNAME
char name[130];
bzero(name, 128);
if (ioctl(js_fd[0], JSIOCGNAME(128), name) > 0)
{
printf("Using %s (%s) as joystick1\n", name, js_device[0]);
for (int i = 1; i < 8; i++)
{
if (js_fd[i] > 0)
{
ioctl(js_fd[i], JSIOCGNAME(128), name);
printf (" and %s (%s) as joystick%d\n", name, js_device[i], i + 1);
}
}
}
else
#endif
{
ioctl(js_fd[0], JSIOCGAXES, &axes);
ioctl(js_fd[0], JSIOCGBUTTONS, &buttons);
printf("Using %d-axis %d-button joystick (%s) as joystick1\n", axes, buttons, js_device[0]);
for (int i = 1; i < 8; i++)
{
if (js_fd[i] > 0)
{
ioctl(js_fd[i], JSIOCGAXES, &axes);
ioctl(js_fd[i], JSIOCGBUTTONS, &buttons);
printf(" and %d-axis %d-button joystick (%s) as joystick%d\n", axes, buttons, js_device[i], i + 1);
}
}
}
#endif
}
static void ReadJoysticks (void)
{
#ifdef JSIOCGVERSION
struct js_event js_ev;
for (int i = 0; i < 8; i++)
{
// Try to reopen unplugged sticks
if (js_unplugged[i])
{
js_fd[i] = open(js_device[i], O_RDONLY | O_NONBLOCK);
if (js_fd[i] >= 0)
{
fprintf(stderr,"Joystick %d reconnected.\n",i);
js_unplugged[i] = FALSE;
}
}
// skip sticks without valid file desc
if (js_fd[i] < 0) continue;
while (read(js_fd[i], &js_ev, sizeof(struct js_event)) == sizeof(struct js_event))
{
switch (js_ev.type)
{
case JS_EVENT_AXIS:
S9xReportAxis(0x8000c000 | (i << 24) | js_ev.number, js_ev.value);
S9xReportAxis(0x80008000 | (i << 24) | (js_mod[i] << 16) | js_ev.number, js_ev.value);
break;
case JS_EVENT_BUTTON:
case JS_EVENT_BUTTON | JS_EVENT_INIT:
S9xReportButton(0x80004000 | (i << 24) | js_ev.number, js_ev.value);
S9xReportButton(0x80000000 | (i << 24) | (js_mod[i] << 16) | js_ev.number, js_ev.value);
break;
}
}
/* EAGAIN is returned when the queue is empty */
if (errno != EAGAIN) {
// Error reading joystick.
fprintf(stderr,"Error reading joystick %d!\n",i);
// Mark for reconnect attempt.
js_unplugged[i] = TRUE;
for (unsigned int j = 0; j < 16; j++)
{
// Center all axis
S9xReportAxis(0x8000c000 | (i << 24) | j, 0);
S9xReportAxis(0x80008000 | (i << 24) | (js_mod[i] << 16) | j, 0);
// Unpress all buttons.
S9xReportButton(0x80004000 | (i << 24) | j, 0);
S9xReportButton(0x80000000 | (i << 24) | (js_mod[i] << 16) | j, 0);
}
}
}
#endif
}
#endif
static void SoundTrigger (void)
{
#ifndef NOSOUND
S9xProcessSound(NULL);
#endif
}
static void InitTimer (void)
{
#ifndef NOSOUND
struct itimerval timeout;
#endif
struct sigaction sa;
#ifdef USE_THREADS
if (unixSettings.ThreadSound)
{
pthread_mutex_init(&mutex, NULL);
pthread_create(&thread, NULL, S9xProcessSound, NULL);
return;
}
#endif
sa.sa_handler = (SIG_PF) SoundTrigger;
#ifdef SA_RESTART
sa.sa_flags = SA_RESTART;
#else
sa.sa_flags = 0;
#endif
#ifndef NOSOUND // FIXME: Kludge to get calltree running. Remove later.
sigemptyset(&sa.sa_mask);
sigaction(SIGALRM, &sa, NULL);
timeout.it_interval.tv_sec = 0;
timeout.it_interval.tv_usec = 10000;
timeout.it_value.tv_sec = 0;
timeout.it_value.tv_usec = 10000;
if (setitimer(ITIMER_REAL, &timeout, NULL) < 0)
perror("setitimer");
#endif
}
bool8 S9xOpenSoundDevice (void)
{
#ifndef NOSOUND
int J, K;
so.sound_fd = open(sound_device, O_WRONLY | O_NONBLOCK);
if (so.sound_fd == -1)
{
fprintf(stderr, "ERROR: Failed to open sound device %s for writing.\n\t(Try loading snd-pcm-oss module?)\n", sound_device);
return (FALSE);
}
J = log2(unixSettings.SoundFragmentSize) | (3 << 16);
if (ioctl(so.sound_fd, SNDCTL_DSP_SETFRAGMENT, &J) == -1)
return (FALSE);
J = K = Settings.SixteenBitSound ? AFMT_S16_NE : AFMT_U8;
if (ioctl(so.sound_fd, SNDCTL_DSP_SETFMT, &J) == -1 || J != K)
return (FALSE);
J = K = Settings.Stereo ? 1 : 0;
if (ioctl(so.sound_fd, SNDCTL_DSP_STEREO, &J) == -1 || J != K)
return (FALSE);
J = K = Settings.SoundPlaybackRate;
if (ioctl(so.sound_fd, SNDCTL_DSP_SPEED, &J) == -1 || J != K)
return (FALSE);
J = 0;
if (ioctl(so.sound_fd, SNDCTL_DSP_GETBLKSIZE, &J) == -1)
return (FALSE);
so.fragment_size = J;
printf("fragment size: %d\n", J);
#endif
return (TRUE);
}
#ifndef NOSOUND
static void * S9xProcessSound (void *)
{
// If threads in use, this is to loop indefinitely.
// If not, this will be called by timer.
audio_buf_info info;
if (!unixSettings.ThreadSound && (ioctl(so.sound_fd, SNDCTL_DSP_GETOSPACE, &info) == -1 || info.bytes < (int) so.fragment_size))
return (NULL);
#ifdef USE_THREADS
do
{
#endif
int sample_count = so.fragment_size;
if (Settings.SixteenBitSound)
sample_count >>= 1;
#ifdef USE_THREADS
if (unixSettings.ThreadSound)
pthread_mutex_lock(&mutex);
else
#endif
if (block_signal)
return (NULL);
block_generate_sound = TRUE;
if (so.samples_mixed_so_far < sample_count)
{
unsigned ofs = so.play_position + (Settings.SixteenBitSound ? (so.samples_mixed_so_far << 1) : so.samples_mixed_so_far);
S9xMixSamples(Buf + (ofs & SOUND_BUFFER_SIZE_MASK), sample_count - so.samples_mixed_so_far);
so.samples_mixed_so_far = sample_count;
}
unsigned bytes_to_write = sample_count;
if (Settings.SixteenBitSound)
bytes_to_write <<= 1;
unsigned byte_offset = so.play_position;
so.play_position += bytes_to_write;
so.play_position &= SOUND_BUFFER_SIZE_MASK;
#ifdef USE_THREADS
if (unixSettings.ThreadSound)
pthread_mutex_unlock(&mutex);
#endif
block_generate_sound = FALSE;
for (;;)
{
int I = bytes_to_write;
if (byte_offset + I > SOUND_BUFFER_SIZE)
I = SOUND_BUFFER_SIZE - byte_offset;
if (I == 0)
break;
I = write(so.sound_fd, (char *) Buf + byte_offset, I);
if (I > 0)
{
bytes_to_write -= I;
byte_offset += I;
byte_offset &= SOUND_BUFFER_SIZE_MASK;
}
else
if (I < 0 && errno != EINTR)
break;
}
so.samples_mixed_so_far -= sample_count;
#ifdef USE_THREADS
} while (unixSettings.ThreadSound);
#endif
return (NULL);
}
#endif
void S9xExit (void)
{
S9xMovieShutdown();
S9xSetSoundMute(TRUE);
Settings.StopEmulation = TRUE;
#ifdef NETPLAY_SUPPORT
if (Settings.NetPlay)
S9xNPDisconnect();
#endif
Memory.SaveSRAM(S9xGetFilename(".srm", SRAM_DIR));
S9xSaveCheatFile(S9xGetFilename(".cht", CHEAT_DIR));
S9xResetSaveTimer(FALSE);
S9xUnmapAllControls();
S9xDeinitDisplay();
Memory.Deinit();
S9xDeinitAPU();
exit(0);
}
#ifdef DEBUGGER
static void sigbrkhandler (int)
{
CPU.Flags |= DEBUG_MODE_FLAG;
signal(SIGINT, (SIG_PF) sigbrkhandler);
}
#endif
int main (int argc, char **argv)
{
if (argc < 2)
S9xUsage();
printf("\n\nSnes9x " VERSION " for unix\n");
snprintf(default_dir, PATH_MAX + 1, "%s%s%s", getenv("HOME"), SLASH_STR, ".snes9x");
s9x_base_dir = default_dir;
memset(&Settings, 0, sizeof(Settings));
Settings.MouseMaster = TRUE;
Settings.SuperScopeMaster = TRUE;
Settings.JustifierMaster = TRUE;
Settings.MultiPlayer5Master = TRUE;
Settings.FrameTimePAL = 20000;
Settings.FrameTimeNTSC = 16667;
Settings.SixteenBitSound = TRUE;
Settings.Stereo = TRUE;
Settings.SoundPlaybackRate = 32000;
Settings.SoundInputRate = 32000;
Settings.SupportHiRes = TRUE;
Settings.Transparency = TRUE;
Settings.AutoDisplayMessages = TRUE;
Settings.InitialInfoStringTimeout = 120;
Settings.HDMATimingHack = 100;
Settings.BlockInvalidVRAMAccessMaster = TRUE;
Settings.StopEmulation = TRUE;
Settings.WrongMovieStateProtection = TRUE;
Settings.DumpStreamsMaxFrames = -1;
Settings.StretchScreenshots = 1;
Settings.SnapshotScreenshots = TRUE;
Settings.SkipFrames = AUTO_FRAMERATE;
Settings.TurboSkipFrames = 15;
Settings.CartAName[0] = 0;
Settings.CartBName[0] = 0;
#ifdef NETPLAY_SUPPORT
Settings.ServerName[0] = 0;
#endif
#ifdef JOYSTICK_SUPPORT
unixSettings.JoystickEnabled = TRUE;
#else
unixSettings.JoystickEnabled = FALSE;
#endif
unixSettings.ThreadSound = TRUE;
unixSettings.SoundBufferSize = 100;
unixSettings.SoundFragmentSize = 2048;
unixSettings.rewindBufferSize = 0;
unixSettings.rewindGranularity = 1;
memset(&so, 0, sizeof(so));
rewinding = false;
CPU.Flags = 0;
S9xLoadConfigFiles(argv, argc);
rom_filename = S9xParseArgs(argv, argc);
make_snes9x_dirs();
if (!Memory.Init() || !S9xInitAPU())
{
fprintf(stderr, "Snes9x: Memory allocation failure - not enough RAM/virtual memory available.\nExiting...\n");
Memory.Deinit();
S9xDeinitAPU();
exit(1);
}
S9xInitSound(unixSettings.SoundBufferSize, 0);
S9xSetSoundMute(TRUE);
S9xReportControllers();
#ifdef GFX_MULTI_FORMAT
S9xSetRenderPixelFormat(RGB565);
#endif
uint32 saved_flags = CPU.Flags;
bool8 loaded = FALSE;
if (Settings.Multi)
{
loaded = Memory.LoadMultiCart(Settings.CartAName, Settings.CartBName);
if (!loaded)
{
char s1[PATH_MAX + 1], s2[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
s1[0] = s2[0] = 0;
if (Settings.CartAName[0])
{
_splitpath(Settings.CartAName, drive, dir, fname, ext);
snprintf(s1, PATH_MAX + 1, "%s%s%s", S9xGetDirectory(ROM_DIR), SLASH_STR, fname);
if (ext[0] && (strlen(s1) <= PATH_MAX - 1 - strlen(ext)))
{
strcat(s1, ".");
strcat(s1, ext);
}
}
if (Settings.CartBName[0])
{
_splitpath(Settings.CartBName, drive, dir, fname, ext);
snprintf(s2, PATH_MAX + 1, "%s%s%s", S9xGetDirectory(ROM_DIR), SLASH_STR, fname);
if (ext[0] && (strlen(s2) <= PATH_MAX - 1 - strlen(ext)))
{
strcat(s2, ".");
strcat(s2, ext);
}
}
loaded = Memory.LoadMultiCart(s1, s2);
}
}
else
if (rom_filename)
{
loaded = Memory.LoadROM(rom_filename);
if (!loaded && rom_filename[0])
{
char s[PATH_MAX + 1];
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
_splitpath(rom_filename, drive, dir, fname, ext);
snprintf(s, PATH_MAX + 1, "%s%s%s", S9xGetDirectory(ROM_DIR), SLASH_STR, fname);
if (ext[0] && (strlen(s) <= PATH_MAX - 1 - strlen(ext)))
{
strcat(s, ".");
strcat(s, ext);
}
loaded = Memory.LoadROM(s);
}
}
if (!loaded)
{
fprintf(stderr, "Error opening the ROM file.\n");
exit(1);
}
NSRTControllerSetup();
Memory.LoadSRAM(S9xGetFilename(".srm", SRAM_DIR));
S9xLoadCheatFile(S9xGetFilename(".cht", CHEAT_DIR));
CPU.Flags = saved_flags;
Settings.StopEmulation = FALSE;
#ifdef DEBUGGER
struct sigaction sa;
sa.sa_handler = sigbrkhandler;
#ifdef SA_RESTART
sa.sa_flags = SA_RESTART;
#else
sa.sa_flags = 0;
#endif
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
#endif
S9xInitInputDevices();
S9xInitDisplay(argc, argv);
S9xSetupDefaultKeymap();
S9xTextMode();
#ifdef NETPLAY_SUPPORT
if (strlen(Settings.ServerName) == 0)
{
char *server = getenv("S9XSERVER");
if (server)
{
strncpy(Settings.ServerName, server, 127);
Settings.ServerName[127] = 0;
}
}
char *port = getenv("S9XPORT");
if (Settings.Port >= 0 && port)
Settings.Port = atoi(port);
else
if (Settings.Port < 0)
Settings.Port = -Settings.Port;
if (Settings.NetPlay)
{
NetPlay.MaxFrameSkip = 10;
unixSettings.rewindBufferSize = 0;
if (!S9xNPConnectToServer(Settings.ServerName, Settings.Port, Memory.ROMName))
{
fprintf(stderr, "Failed to connect to server %s on port %d.\n", Settings.ServerName, Settings.Port);
S9xExit();
}
fprintf(stderr, "Connected to server %s on port %d as player #%d playing %s.\n", Settings.ServerName, Settings.Port, NetPlay.Player, Memory.ROMName);
}
#endif
if (play_smv_filename)
{
uint32 flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
if (S9xMovieOpen(play_smv_filename, TRUE) != SUCCESS)
exit(1);
CPU.Flags |= flags;
}
else
if (record_smv_filename)
{
uint32 flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
if (S9xMovieCreate(record_smv_filename, 0xFF, MOVIE_OPT_FROM_RESET, NULL, 0) != SUCCESS)
exit(1);
CPU.Flags |= flags;
}
else
{
if (snapshot_filename)
{
uint32 flags = CPU.Flags & (DEBUG_MODE_FLAG | TRACE_FLAG);
if (!S9xUnfreezeGame(snapshot_filename))
exit(1);
CPU.Flags |= flags;
}
if (unixSettings.rewindBufferSize)
{
stateMan.init(unixSettings.rewindBufferSize * 1024 * 1024);
}
}
S9xGraphicsMode();
sprintf(String, "\"%s\" %s: %s", Memory.ROMName, TITLE, VERSION);
S9xSetTitle(String);
#ifdef JOYSTICK_SUPPORT
uint32 JoypadSkip = 0;
#endif
InitTimer();
S9xSetSoundMute(FALSE);
#ifdef NETPLAY_SUPPORT
bool8 NP_Activated = Settings.NetPlay;
#endif
while (1)
{
#ifdef NETPLAY_SUPPORT
if (NP_Activated)
{
if (NetPlay.PendingWait4Sync && !S9xNPWaitForHeartBeatDelay(100))
{
S9xProcessEvents(FALSE);
continue;
}
for (int J = 0; J < 8; J++)
old_joypads[J] = MovieGetJoypad(J);
for (int J = 0; J < 8; J++)
MovieSetJoypad(J, joypads[J]);
if (NetPlay.Connected)
{
if (NetPlay.PendingWait4Sync)
{
NetPlay.PendingWait4Sync = FALSE;
NetPlay.FrameCount++;
S9xNPStepJoypadHistory();
}
}
else
{
fprintf(stderr, "Lost connection to server.\n");
S9xExit();
}
}
#endif
#ifdef DEBUGGER
if (!Settings.Paused || (CPU.Flags & (DEBUG_MODE_FLAG | SINGLE_STEP_FLAG)))
#else
if (!Settings.Paused)
#endif
{
if(rewinding)
rewinding = stateMan.pop();
else if(IPPU.TotalEmulatedFrames % unixSettings.rewindGranularity == 0)
stateMan.push();
S9xMainLoop();
}
#ifdef NETPLAY_SUPPORT
if (NP_Activated)
{
for (int J = 0; J < 8; J++)
MovieSetJoypad(J, old_joypads[J]);
}
#endif
#ifdef DEBUGGER
if (Settings.Paused || (CPU.Flags & DEBUG_MODE_FLAG))
#else
if (Settings.Paused)
#endif
S9xSetSoundMute(TRUE);
#ifdef DEBUGGER
if (CPU.Flags & DEBUG_MODE_FLAG)
S9xDoDebug();
else
#endif
if (Settings.Paused)
{
S9xProcessEvents(FALSE);
usleep(100000);
}
#ifdef JOYSTICK_SUPPORT
if (unixSettings.JoystickEnabled && (JoypadSkip++ & 1) == 0)
ReadJoysticks();
#endif
S9xProcessEvents(FALSE);
#ifdef DEBUGGER
if (!Settings.Paused && !(CPU.Flags & DEBUG_MODE_FLAG))
#else
if (!Settings.Paused)
#endif
S9xSetSoundMute(FALSE);
}
return (0);
}
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