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snes9x/unix/unix.cpp

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/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <fcntl.h>
#include <dirent.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <algorithm>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef USE_THREADS
#include <sched.h>
#include <pthread.h>
#include <vector>
#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
#ifndef ALSA
#include <sys/soundcard.h>
#include <sys/mman.h>
#else
#include <alsa/asoundlib.h>
#endif
#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 "display.h"
#include "conffile.h"
#include "fscompat.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", // PATCH_DIR
"bios", // BIOS_DIR
"log", // LOG_DIR
""
};
struct SUnixSettings
{
bool8 JoystickEnabled;
bool8 ThreadSound;
uint32 SoundBufferSize;
uint32 SoundFragmentSize;
uint32 rewindBufferSize;
uint32 rewindGranularity;
};
struct SoundStatus
{
#ifndef ALSA
int sound_fd;
uint32 fragment_size;
#else
snd_pcm_t *pcm_handle;
int output_buffer_size;
#endif
};
static int frame_advance = 0;
static SUnixSettings unixSettings;
static SoundStatus so;
static bool8 rewinding;
#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 void NSRTControllerSetup (void);
static int make_snes9x_dirs (void);
#ifdef JOYSTICK_SUPPORT
static void InitJoysticks (void);
static bool8 ReadJoysticks (void);
void S9xLatchJSEvent();
#endif
static long snes9x_log2 (long num)
{
long n = 0;
while (num >>= 1)
n++;
return (n);
}
namespace {
#if ! defined(NOSOUND) && ! defined(ALSA)
class S9xAudioOutput
{
public:
S9xAudioOutput(int fd, uint32 sampleRateHz, bool isThreaded)
{
m_FD = fd;
uint32 bufferSizeMS = unixSettings.SoundBufferSize; // milliseconds
// 4 = sizeof(uint16) * STEREO
m_BufferSize = int(uint64(sampleRateHz) * bufferSizeMS / 1000 * 4);
#if defined(USE_THREADS)
m_WrittenSize = 0;
m_Thread = pthread_t();
m_isExit = false;
if (isThreaded)
{
m_BufferMutex = PTHREAD_MUTEX_INITIALIZER;
m_hasBuffer = PTHREAD_COND_INITIALIZER;
if (pthread_create(&m_Thread, NULL, AudioOutputThreadEntry, this))
{
return;
}
}
#endif
}
~S9xAudioOutput()
{
#if defined(USE_THREADS)
if (m_Thread)
{
pthread_mutex_lock(&m_BufferMutex);
{
m_isExit = true;
pthread_cond_signal(&m_hasBuffer);
}
pthread_mutex_unlock(&m_BufferMutex);
pthread_join(m_Thread, NULL);
pthread_mutex_destroy(&m_BufferMutex);
pthread_cond_destroy(&m_hasBuffer);
}
#endif
}
void Write(void* data, int size)
{
#if defined(USE_THREADS)
if (m_Thread)
{
pthread_mutex_lock(&m_BufferMutex);
{
if (int(m_Buffering.size()) < m_BufferSize)
{
size_t oldSize = m_Buffering.size();
size_t newSize = oldSize + size;
m_WrittenSize = newSize;
m_Buffering.resize(newSize);
memcpy(&m_Buffering[oldSize], data, size);
pthread_cond_signal(&m_hasBuffer);
}
}
pthread_mutex_unlock(&m_BufferMutex);
}
else
#endif
{
WriteImpl(data, size);
}
}
int GetFreeBufferSize()
{
#if defined(USE_THREADS)
if (m_Thread)
{
int writtenSize;
pthread_mutex_lock(&m_BufferMutex);
{
writtenSize = m_WrittenSize;
}
pthread_mutex_unlock(&m_BufferMutex);
return m_BufferSize - writtenSize;
}
else
#endif
{
audio_buf_info info;
ioctl(m_FD, SNDCTL_DSP_GETOSPACE, &info);
int writtenSize = info.fragsize * info.fragstotal - info.bytes;
return std::max(0, m_BufferSize - writtenSize);
}
}
private:
void WriteImpl(const void* data, int size)
{
const char* p = reinterpret_cast<const char*>(data);
while (size > 0)
{
int result = write(m_FD, p, size);
if (result < 0)
{
return;
}
p += result;
size -= result;
}
}
int m_FD;
int m_BufferSize;
#if defined(USE_THREADS)
pthread_t m_Thread;
volatile bool m_isExit;
pthread_mutex_t m_BufferMutex;
pthread_cond_t m_hasBuffer;
std::vector<uint8> m_PlayingBuffer;
std::vector<uint8> m_Buffering;
int m_WrittenSize; // for dynamic rate control
static void* AudioOutputThreadEntry(void* arg)
{
S9xAudioOutput* obj = reinterpret_cast<S9xAudioOutput*>(arg);
obj->AudioOutputThread();
return NULL;
}
void AudioOutputThread()
{
while (true)
{
pthread_mutex_lock(&m_BufferMutex);
{
pthread_cond_wait(&m_hasBuffer, &m_BufferMutex);
if (m_isExit)
{
return;
}
m_PlayingBuffer.swap(m_Buffering);
m_WrittenSize = 0;
}
pthread_mutex_unlock(&m_BufferMutex);
if (! m_PlayingBuffer.empty())
{
WriteImpl(&m_PlayingBuffer[0], m_PlayingBuffer.size());
m_PlayingBuffer.resize(0);
}
}
}
#endif // USE_THREADS
};
S9xAudioOutput* s_AudioOutput = NULL;
#endif // NOSOUND
}
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, "-paddev2 <string> Specify gamepad device 2");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev3 <string> Specify gamepad device 3");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev4 <string> Specify gamepad device 4");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev5 <string> Specify gamepad device 5");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev6 <string> Specify gamepad device 6");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev7 <string> Specify gamepad device 7");
S9xMessage(S9X_INFO, S9X_USAGE, "-paddev8 <string> Specify gamepad device 8");
S9xMessage(S9X_INFO, S9X_USAGE, "");
#endif
#ifndef NOSOUND
#if defined(USE_THREADS) && !defined(ALSA)
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");
#ifndef ALSA
S9xMessage(S9X_INFO, S9X_USAGE, "-fragmentsize Sound playback buffer fragment size in bytes");
#endif
S9xMessage(S9X_INFO, S9X_USAGE, "-sounddev <string> Specify sound device");
S9xMessage(S9X_INFO, S9X_USAGE, "");
#endif
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], PATH_MAX);
else
S9xUsage();
}
else
if (!strcasecmp(argv[i], "-cartb"))
{
if (i + 1 < argc)
strncpy(Settings.CartBName, argv[++i], PATH_MAX);
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);
#ifndef ALSA
sound_device = conf.GetStringDup("Unix::SoundDevice", "/dev/dsp");
#else
sound_device = conf.GetStringDup("Unix::SoundDevice", "default");
#endif
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);
}
std::string S9xGetDirectory (enum s9x_getdirtype dirtype)
{
std::string retval = Memory.ROMFilename;
size_t pos;
if (dirNames[dirtype][0])
return std::string(s9x_base_dir) + SLASH_STR + dirNames[dirtype];
else
{
switch (dirtype)
{
case DEFAULT_DIR:
retval = s9x_base_dir;
break;
case HOME_DIR:
retval = std::string(getenv("HOME"));
break;
case ROMFILENAME_DIR:
retval = Memory.ROMFilename;
pos = retval.rfind("/");
if (pos != std::string::npos)
retval = retval.substr(pos);
break;
default:
break;
}
}
return retval;
}
std::string S9xGetFilenameInc (std::string ex, enum s9x_getdirtype dirtype)
{
struct stat buf;
SplitPath path = splitpath(Memory.ROMFilename);
std::string directory = S9xGetDirectory(dirtype);
if (ex[0] != '.')
{
ex = "." + ex;
}
std::string new_filename;
unsigned int i = 0;
do
{
std::string new_extension = std::to_string(i);
while (new_extension.length() < 3)
new_extension = "0" + new_extension;
new_extension += ex;
new_filename = path.stem + new_extension;
i++;
} while (stat(new_filename.c_str(), &buf) == 0 && i < 1000);
return new_filename;
}
const char * S9xBasename (const char *f)
{
const char *p;
if ((p = strrchr(f, '/')) != NULL || (p = strrchr(f, '\\')) != NULL)
return (p + 1);
return (f);
}
bool8 S9xOpenSnapshotFile (const char *filename, bool8 read_only, STREAM *file)
{
if (read_only)
{
if ((*file = OPEN_STREAM(filename, "rb")))
return (true);
else
fprintf(stderr, "Failed to open file stream for reading.\n");
}
else
{
if ((*file = OPEN_STREAM(filename, "wb")))
{
return (true);
}
else
{
fprintf(stderr, "Couldn't open stream with zlib.\n");
}
}
fprintf(stderr, "Couldn't open snapshot file:\n%s\n", filename);
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).c_str());
}
void S9xSyncSpeed (void)
{
#ifndef NOSOUND
if (Settings.SoundSync)
{
return;
}
#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);
}
else if (!strcmp(n, "Advance"))
{
cmd.type = S9xButtonPort;
cmd.port[1] = 3;
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"));
case 3:
return (strdup("Advance"));
}
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;
case 3:
frame_advance = (bool8) data1;
}
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 bool8 ReadJoysticks (void)
{
// track if ANY joystick event happened this frame
int js_latch = FALSE;
#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;
js_latch = TRUE;
}
}
// 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);
js_latch = TRUE;
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);
js_latch = TRUE;
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);
}
js_latch = TRUE;
}
}
#endif
return js_latch;
}
#endif
void S9xSamplesAvailable(void *data)
{
#ifndef NOSOUND
int samples_to_write;
static uint8 *sound_buffer = NULL;
static int sound_buffer_size = 0;
#ifdef ALSA
snd_pcm_sframes_t frames_written, frames;
frames = snd_pcm_avail(so.pcm_handle);
if (frames < 0)
{
frames = snd_pcm_recover(so.pcm_handle, frames, 1);
return;
}
#endif
if (Settings.DynamicRateControl)
{
#ifndef ALSA
S9xUpdateDynamicRate(s_AudioOutput->GetFreeBufferSize(), so.fragment_size * 4);
#else
S9xUpdateDynamicRate(snd_pcm_frames_to_bytes(so.pcm_handle, frames),
so.output_buffer_size);
#endif
}
samples_to_write = S9xGetSampleCount();
if (samples_to_write < 0)
return;
#ifdef ALSA
if (Settings.DynamicRateControl && !Settings.SoundSync)
{
// Using rate control, we should always keep the emulator's sound buffers empty to
// maintain an accurate measurement.
if (frames < samples_to_write/2)
{
S9xClearSamples();
return;
}
}
if (Settings.SoundSync && !Settings.TurboMode && !Settings.Mute)
{
snd_pcm_nonblock(so.pcm_handle, 0);
frames = samples_to_write/2;
} else {
snd_pcm_nonblock(so.pcm_handle, 1);
frames = MIN(frames, samples_to_write/2);
}
int bytes = snd_pcm_frames_to_bytes(so.pcm_handle, frames);
if (bytes <= 0)
return;
if (sound_buffer_size < bytes || sound_buffer == NULL)
{
sound_buffer = (uint8 *)realloc(sound_buffer, bytes);
sound_buffer_size = bytes;
}
#else //OSS
if (sound_buffer_size < samples_to_write * 2)
{
sound_buffer = (uint8 *)realloc(sound_buffer, samples_to_write * 2);
sound_buffer_size = samples_to_write * 2;
}
#endif
#ifndef ALSA
S9xMixSamples(sound_buffer, samples_to_write);
s_AudioOutput->Write(sound_buffer, samples_to_write * 2);
#else
S9xMixSamples(sound_buffer, frames*2);
frames_written = 0;
while (frames_written < frames) {
int result;
result = snd_pcm_writei(so.pcm_handle,
sound_buffer +
snd_pcm_frames_to_bytes(so.pcm_handle, frames_written),
frames - frames_written);
if (result < 0)
{
result = snd_pcm_recover(so.pcm_handle, result, 1);
if (result < 0)
{
break;
}
}
else
{
frames_written += result;
}
}
#endif //ALSA
#endif //NOSOUND
}
bool8 S9xOpenSoundDevice (void)
{
#ifndef NOSOUND
#ifndef ALSA
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);
}
s_AudioOutput = new S9xAudioOutput(
so.sound_fd,
Settings.SoundPlaybackRate,
bool(unixSettings.ThreadSound)
);
J = snes9x_log2(unixSettings.SoundFragmentSize) | (4 << 16);
if (ioctl(so.sound_fd, SNDCTL_DSP_SETFRAGMENT, &J) == -1)
return (FALSE);
J = K = AFMT_S16_NE;
if (ioctl(so.sound_fd, SNDCTL_DSP_SETFMT, &J) == -1 || J != K)
return (FALSE);
J = K = 1;
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);
#else
int err;
unsigned int periods = 8;
unsigned int buffer_size = unixSettings.SoundBufferSize * 1000;
snd_pcm_sw_params_t *sw_params;
snd_pcm_hw_params_t *hw_params;
snd_pcm_uframes_t alsa_buffer_size, alsa_period_size;
unsigned int min = 0;
unsigned int max = 0;
unsigned int rate = Settings.SoundPlaybackRate;
err = snd_pcm_open(&so.pcm_handle, sound_device, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if (err < 0) {
printf("Failed: %s\n", snd_strerror(err));
return (FALSE);
}
snd_pcm_hw_params_alloca(&hw_params);
snd_pcm_hw_params_any(so.pcm_handle, hw_params);
snd_pcm_hw_params_set_format(so.pcm_handle, hw_params, SND_PCM_FORMAT_S16);
snd_pcm_hw_params_set_access(so.pcm_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);
snd_pcm_hw_params_set_rate_resample(so.pcm_handle, hw_params, 0);
snd_pcm_hw_params_set_channels(so.pcm_handle, hw_params, 2);
snd_pcm_hw_params_get_rate_min(hw_params, &min, NULL);
snd_pcm_hw_params_get_rate_max(hw_params, &max, NULL);
fprintf(stderr, "Alsa available rates: %d to %d\n", min, max);
if (rate > max && rate < min)
{
fprintf(stderr, "Rate %d not available. Using %d instead.\n", rate, max);
rate = max;
}
snd_pcm_hw_params_set_rate_near(so.pcm_handle, hw_params, &rate, NULL);
snd_pcm_hw_params_get_buffer_time_min(hw_params, &min, NULL);
snd_pcm_hw_params_get_buffer_time_max(hw_params, &max, NULL);
fprintf(stderr, "Alsa available buffer sizes: %dms to %dms\n", min / 1000, max / 1000);
if (buffer_size < min && buffer_size > max)
{
fprintf(stderr, "Buffer size %dms not available. Using %d instead.\n", buffer_size / 1000, (min + max) / 2000);
buffer_size = (min + max) / 2;
}
snd_pcm_hw_params_set_buffer_time_near(so.pcm_handle, hw_params, &buffer_size, NULL);
snd_pcm_hw_params_get_periods_min(hw_params, &min, NULL);
snd_pcm_hw_params_get_periods_max(hw_params, &max, NULL);
fprintf(stderr, "Alsa period ranges: %d to %d blocks\n", min, max);
if (periods > max)
periods = max;
snd_pcm_hw_params_set_periods_near(so.pcm_handle, hw_params, &periods, NULL);
err = snd_pcm_hw_params(so.pcm_handle, hw_params);
if (err < 0)
{
fprintf(stderr, "Alsa error: unable to install hw params\n");
snd_pcm_drain(so.pcm_handle);
snd_pcm_close(so.pcm_handle);
so.pcm_handle = NULL;
return (FALSE);
}
snd_pcm_sw_params_alloca(&sw_params);
snd_pcm_sw_params_current(so.pcm_handle, sw_params);
snd_pcm_get_params(so.pcm_handle, &alsa_buffer_size, &alsa_period_size);
/* Don't start until we're [nearly] full */
snd_pcm_sw_params_set_start_threshold(so.pcm_handle, sw_params, (alsa_buffer_size / 2));
err = snd_pcm_sw_params(so.pcm_handle, sw_params);
if (err < 0) {
fprintf(stderr, "Alsa error: unable to install sw params\n");
snd_pcm_drain(so.pcm_handle);
snd_pcm_close(so.pcm_handle);
so.pcm_handle = NULL;
return (FALSE);
}
err = snd_pcm_prepare(so.pcm_handle);
if (err < 0) {
fprintf(stderr, "Alsa error: unable to prepare audio: %s\n", snd_strerror(err));
snd_pcm_drain(so.pcm_handle);
snd_pcm_close(so.pcm_handle);
so.pcm_handle = NULL;
return (FALSE);
}
so.output_buffer_size = snd_pcm_frames_to_bytes(so.pcm_handle, alsa_buffer_size);
#endif //ALSA
#endif //NOSOUND
S9xSetSamplesAvailableCallback(S9xSamplesAvailable, NULL);
return (TRUE);
}
void S9xExit (void)
{
S9xMovieShutdown();
S9xSetSoundMute(TRUE);
Settings.StopEmulation = TRUE;
#ifdef NETPLAY_SUPPORT
if (Settings.NetPlay)
S9xNPDisconnect();
#endif
#if !defined(NOSOUND) && !defined(ALSA)
delete s_AudioOutput;
#endif
Memory.SaveSRAM(S9xGetFilename(".srm", SRAM_DIR).c_str());
S9xResetSaveTimer(FALSE);
S9xSaveCheatFile(S9xGetFilename(".cht", CHEAT_DIR));
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 = 48000;
Settings.SoundInputRate = 31950;
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);
S9xDeleteCheats();
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(0);
S9xSetSoundMute(TRUE);
S9xReportControllers();
uint32 saved_flags = CPU.Flags;
bool8 loaded = FALSE;
if (Settings.Multi)
{
loaded = Memory.LoadMultiCart(Settings.CartAName, Settings.CartBName);
if (!loaded)
{
std::string s1, s2;
if (Settings.CartAName[0])
{
SplitPath path = splitpath(Settings.CartAName);
s1 = makepath("", S9xGetDirectory(ROM_DIR), path.stem, path.ext);
}
if (Settings.CartBName[0])
{
SplitPath path = splitpath(Settings.CartBName);
s2 = makepath("", S9xGetDirectory(ROM_DIR), path.stem, path.ext);
}
loaded = Memory.LoadMultiCart(s1.c_str(), s2.c_str());
}
}
else
if (rom_filename)
{
loaded = Memory.LoadROM(rom_filename);
if (!loaded && rom_filename[0])
{
SplitPath path = splitpath(rom_filename);
std::string s = makepath("", S9xGetDirectory(ROM_DIR), path.stem, path.ext);
loaded = Memory.LoadROM(s.c_str());
}
}
if (!loaded)
{
fprintf(stderr, "Error opening the ROM file.\n");
exit(1);
}
S9xDeleteCheats();
S9xCheatsEnable();
NSRTControllerSetup();
Memory.LoadSRAM(S9xGetFilename(".srm", SRAM_DIR).c_str());
if (Settings.ApplyCheats)
{
S9xLoadCheatFile(S9xGetFilename(".cht", CHEAT_DIR));
}
S9xParseArgsForCheats(argv, argc);
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
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)
{
uint16 joypads[8];
for (int i = 0; i < 8; i++)
joypads[i] = MovieGetJoypad(i);
rewinding = stateMan.pop();
for (int i = 0; i < 8; i++)
MovieSetJoypad (i, joypads[i]);
}
else if(IPPU.TotalEmulatedFrames % unixSettings.rewindGranularity == 0)
stateMan.push();
S9xMainLoop();
}
if (Settings.Paused && frame_advance)
{
S9xMainLoop();
frame_advance = 0;
}
#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)
{
if (ReadJoysticks() == TRUE) {
S9xLatchJSEvent();
}
}
#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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