snes9x/gtk/src/gtk_config.cpp

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/stat.h>

#include "gtk_config.h"
#include "gtk_s9x.h"
#include "gtk_sound.h"
#include "gtk_display.h"
#include "conffile.h"

static int directory_exists (const char *directory)
{
    DIR *dir;

    dir = opendir (directory);

    if (dir)
    {
        closedir (dir);
        return TRUE;
    }

    return FALSE;
}

char *get_config_dir ()
{
    char *home_dir = NULL,
         *classic_config_dir = NULL,
         *xdg_config_dir = NULL,
         *xdg_snes9x_dir = NULL;

    /* Find config directory */
    home_dir = getenv ("HOME");
    xdg_config_dir = getenv ("XDG_CONFIG_HOME");

    if (!home_dir && !xdg_config_dir)
    {
        return strdup (".snes9x");
    }

    if (!xdg_config_dir)
    {
        xdg_snes9x_dir = (char *) malloc (strlen (home_dir) + 16);
        sprintf (xdg_snes9x_dir, "%s/.config/snes9x", home_dir);
    }
    else
    {
        xdg_snes9x_dir = (char *) malloc (strlen (xdg_config_dir) + 9);
        sprintf (xdg_snes9x_dir, "%s/snes9x", xdg_config_dir);
    }

    classic_config_dir =  (char *) malloc (strlen (home_dir) + 9);
    sprintf (classic_config_dir, "%s/.snes9x", home_dir);

    char *config_dir;

    if (directory_exists (classic_config_dir) && !directory_exists(xdg_snes9x_dir))
    {
        free (xdg_snes9x_dir);
        config_dir =  classic_config_dir;
    }
    else
    {
        free (classic_config_dir);
        config_dir = xdg_snes9x_dir;
    }

    return config_dir;
}

char *get_config_file_name ()
{
    char *filename;

    filename = get_config_dir ();

    filename = (char *) realloc (filename, strlen (filename) + 16);
    strcat (filename, "/snes9x.conf");

    return filename;
}

void S9xParsePortConfig (ConfigFile &conf, int pass)
{
}

Snes9xConfig::Snes9xConfig ()
{
#ifdef USE_JOYSTICK
    joystick = NULL;
    joystick_threshold = 40;
#endif
#ifdef USE_OPENGL
    opengl_activated = FALSE;
#endif
}

int Snes9xConfig::load_defaults ()
{
    full_screen_on_open = 0;
    change_display_resolution = 0;
    xrr_index = 0;
    scale_to_fit = 1;
    maintain_aspect_ratio = 1;
    aspect_ratio = 2;
    scale_method = 0;
    overscan = 0;
    save_sram_after_secs = 0;
    rom_loaded = 0;
    multithreading = 0;
    hw_accel = 0;
    allow_opengl = 0;
    allow_xv = 0;
    allow_xrandr = 0;
    force_inverted_byte_order = FALSE;
    hires_effect = HIRES_NORMAL;
    pause_emulation_on_switch = 0;
    num_threads = 2;
    mute_sound = FALSE;
    mute_sound_turbo = FALSE;
    fullscreen = FALSE;
    ui_visible = TRUE;
    statusbar_visible = FALSE;
    default_esc_behavior = 1;
    prevent_screensaver = FALSE;
    sound_driver = 0;
    sound_buffer_size = 32;
    sound_playback_rate = 5;
    sound_input_rate = 31950;
    auto_input_rate = TRUE;
    last_directory[0] = '\0';
    last_shader_directory[0] = '\0';
    window_width = -1;
    window_height = -1;
    preferences_width = -1;
    preferences_height = -1;
    sram_directory[0] = '\0';
    export_directory[0] = '\0';
    savestate_directory[0] = '\0';
    cheat_directory[0] = '\0';
    patch_directory[0] = '\0';
    screensaver_needs_reset = FALSE;
    ntsc_setup = snes_ntsc_composite;
    ntsc_scanline_intensity = 1;
    scanline_filter_intensity = 0;
    Settings.BilinearFilter = FALSE;
    netplay_activated = FALSE;
    netplay_server_up = FALSE;
    netplay_is_server = FALSE;
    netplay_sync_reset = TRUE;
    netplay_send_rom = FALSE;
    netplay_default_port = 6096;
    netplay_max_frame_loss = 10;
    netplay_last_rom [0] = '\0';
    netplay_last_host [0] = '\0';
    netplay_last_port = 6096;
    modal_dialogs = 1;
    S9xCheatsEnable ();

    rewind_granularity = 5;
    rewind_buffer_size = 0;
    Settings.Rewinding = FALSE;

#ifdef USE_OPENGL
    sync_to_vblank = 1;
    use_pbos = 1;
    pbo_format = 0;
    npot_textures = FALSE;
    use_shaders = 0;
    fragment_shader[0] = '\0';
    vertex_shader[0] = '\0';
    sync_every_frame = FALSE;
#endif

    /* Snes9X Variables */
    Settings.MouseMaster = TRUE;
    Settings.SuperScopeMaster = TRUE;
    Settings.JustifierMaster = TRUE;
    Settings.MultiPlayer5Master = TRUE;
    Settings.UpAndDown = FALSE;
    Settings.AutoSaveDelay = 0;
    Settings.SkipFrames = 0;
    Settings.Transparency = TRUE;
    Settings.DisplayFrameRate = FALSE;
    Settings.SixteenBitSound = TRUE;
    Settings.Stereo = TRUE;
    Settings.ReverseStereo = FALSE;
    Settings.SoundPlaybackRate = 32000;
    Settings.StopEmulation = TRUE;
    Settings.FrameTimeNTSC = 16667;
    Settings.FrameTimePAL = 20000;
    Settings.SupportHiRes = true;
    Settings.FrameTime = Settings.FrameTimeNTSC;
    Settings.BlockInvalidVRAMAccessMaster = TRUE;
    Settings.SoundSync = 0;
    Settings.DynamicRateControl = FALSE;
    Settings.DynamicRateLimit = 5;
    Settings.InterpolationMethod = DSP_INTERPOLATION_GAUSSIAN;
    Settings.HDMATimingHack = 100;
    Settings.SuperFXClockMultiplier = 100;
#ifdef ALLOW_CPU_OVERCLOCK
    Settings.MaxSpriteTilesPerLine = 34;
    Settings.OneClockCycle = 6;
    Settings.OneSlowClockCycle = 8;
    Settings.TwoClockCycles = 12;
#endif

#ifdef NETPLAY_SUPPORT
    Settings.NetPlay = FALSE;
    NetPlay.Paused = FALSE;
    NetPlay.MaxFrameSkip = 10;
#endif

    memset (pad, 0, sizeof (JoypadBinding) * NUM_JOYPADS);
    memset (shortcut, 0, sizeof (Binding) * NUM_EMU_LINKS);

    return 0;
}

#ifdef USE_JOYSTICK

void Snes9xConfig::joystick_register_centers ()
{
    for (int i = 0; joystick[i] != NULL; i++)
        joystick[i]->register_centers ();
}

void Snes9xConfig::flush_joysticks ()
{
    int i;

    for (i = 0; joystick[i] != NULL; i++)
        joystick[i]->flush ();
}

void Snes9xConfig::set_joystick_mode (int mode)
{
    int i;
    for (i = 0; joystick[i] != NULL; i++)
        joystick[i]->mode = mode;
}

#endif

static inline void outbool (ConfigFile &cf, const char *key, bool value, const char *comment = "")
{
    cf.SetBool (key, value, "true", "false", comment);
}

int Snes9xConfig::save_config_file ()
{
    char *filename;
    char key[PATH_MAX];
    char buffer[PATH_MAX];
    ConfigFile cf;

    cf.SetNiceAlignment (true);
    cf.SetShowComments (true);
    cf.SetAlphaSort (true);

#undef z
#define z "Display::"
    outbool (cf, z"FullscreenOnOpen", full_screen_on_open,"Set the screen resolution after opening a ROM");
    outbool (cf, z"ChangeDisplayResolution", change_display_resolution, "Set the resolution in fullscreen mode");
    cf.SetInt   (z"VideoMode", xrr_index, "Platform-specific video mode number");
    outbool (cf, z"ScaleToFit", scale_to_fit, "Scale the image to fit the window size");
    outbool (cf, z"MaintainAspectRatio", maintain_aspect_ratio, "Resize the screen to the proportions set by aspect ratio option");
    cf.SetInt   (z"AspectRatio", aspect_ratio, "0: uncorrected, 1: 4:3, 2: NTSC/PAL");
    cf.SetInt   (z"SoftwareScaleFilter", scale_method, "Build-specific number of filter used for software scaling");
    cf.SetInt   (z"ScanlineFilterIntensity", scanline_filter_intensity);
    outbool (cf, z"ShowOverscanArea", overscan);
    cf.SetInt   (z"HiresEffect", hires_effect, "0: Downscale to low-res, 1: Leave as-is, 2: Upscale low-res screens");
    cf.SetInt   (z"ForceInvertedByteOrder", force_inverted_byte_order);
    outbool (cf, z"Multithreading", multithreading);
    cf.SetInt   (z"NumberOfThreads", num_threads);
    cf.SetInt   (z"HardwareAcceleration", hw_accel, "0: None, 1: OpenGL, 2: XVideo");
    outbool (cf, z"BilinearFilter", Settings.BilinearFilter);

#undef z
#define z "NTSC::"
    cf.SetString (z"Hue", std::to_string (ntsc_setup.hue));
    cf.SetString (z"Saturation", std::to_string (ntsc_setup.saturation));
    cf.SetString (z"Contrast", std::to_string (ntsc_setup.contrast));
    cf.SetString (z"Brightness", std::to_string (ntsc_setup.brightness));
    cf.SetString (z"Sharpness", std::to_string (ntsc_setup.sharpness));
    cf.SetString (z"Artifacts", std::to_string (ntsc_setup.artifacts));
    cf.SetString (z"Gamma", std::to_string (ntsc_setup.gamma));
    cf.SetString (z"Bleed", std::to_string (ntsc_setup.bleed));
    cf.SetString (z"Fringing", std::to_string (ntsc_setup.fringing));
    cf.SetString (z"Resolution", std::to_string (ntsc_setup.resolution));
    cf.SetInt    (z"MergeFields", ntsc_setup.merge_fields);
    cf.SetInt    (z"ScanlineIntensity", ntsc_scanline_intensity);

#ifdef USE_OPENGL
#undef z
#define z "OpenGL::"
    outbool   (cf, z"VSync", sync_to_vblank);
    outbool   (cf, z"ReduceInputLag", sync_every_frame);
    outbool   (cf, z"UsePixelBufferObjects", use_pbos);
    cf.SetInt     (z"PixelBufferObjectBitDepth", pbo_format);
    outbool   (cf, z"UseNonPowerOfTwoTextures", npot_textures);
    outbool   (cf, z"EnableCustomShaders", use_shaders);
    cf.SetString  (z"ShaderFile", fragment_shader);
#endif

#undef z
#define z "Sound::"
    outbool (cf, z"MuteSound", mute_sound);
    outbool (cf, z"MuteSoundDuringTurbo", mute_sound_turbo);
    cf.SetInt   (z"BufferSize", sound_buffer_size);
    cf.SetInt   (z"Driver", sound_driver);
    cf.SetInt   (z"InputRate", sound_input_rate);
    outbool (cf, z"DynamicRateControl", Settings.DynamicRateControl);
    cf.SetInt   (z"DynamicRateControlLimit", Settings.DynamicRateLimit);
    outbool (cf, z"AutomaticInputRate", auto_input_rate);
    outbool (cf, z"16bit", Settings.SixteenBitSound);
    outbool (cf, z"Stereo", Settings.Stereo);
    outbool (cf, z"ReverseStero", Settings.ReverseStereo);
    cf.SetInt   (z"PlaybackRate", gui_config->sound_playback_rate);

#undef z
#define z "Files::"

    cf.SetString (z"LastDirectory", last_directory);
    cf.SetString (z"LastShaderDirectory", last_shader_directory);
    cf.SetString (z"SRAMDirectory", sram_directory);
    cf.SetString (z"SaveStateDirectory", savestate_directory);
    cf.SetString (z"CheatDirectory", cheat_directory);
    cf.SetString (z"PatchDirectory", patch_directory);
    cf.SetString (z"ExportDirectory", export_directory);

#undef z
#define z "Window State::"
    cf.SetInt (z"MainWidth", window_width);
    cf.SetInt (z"MainHeight", window_height);
    cf.SetInt (z"PreferencesWidth", preferences_width);
    cf.SetInt (z"PreferencesHeight", preferences_height);
    outbool (cf, z"UIVisible", ui_visible);
    outbool (cf, z"StatusBarVisible", statusbar_visible);
    if (default_esc_behavior != ESC_TOGGLE_MENUBAR)
        outbool (cf, z"Fullscreen", 0);
    else
        outbool (cf, z"Fullscreen", fullscreen);

#undef z
#define z "Netplay::"
    outbool (cf, z"ActAsServer", netplay_is_server);
    outbool (cf, z"UseResetToSync", netplay_sync_reset);
    outbool (cf, z"SendROM", netplay_send_rom);
    cf.SetInt (z"DefaultPort", netplay_default_port);
    cf.SetInt (z"MaxFrameLoss", netplay_max_frame_loss);
    cf.SetInt (z"LastUsedPort", netplay_last_port);
    cf.SetString (z"LastUsedROM", netplay_last_rom);
    cf.SetString (z"LastUsedHost", netplay_last_host);

#undef z
#define z "Behavior::"
    outbool (cf, z"PauseEmulationWhenFocusLost", pause_emulation_on_switch);
    cf.SetInt (z"DefaultESCKeyBehavior", default_esc_behavior);
    outbool (cf, z"PreventScreensaver", prevent_screensaver);
    outbool (cf, z"UseModalDialogs", modal_dialogs);
    cf.SetInt (z"rewind_buffer_size", rewind_buffer_size);
    cf.SetInt (z"rewind_granularity", rewind_granularity);

#undef z
#define z "Emulation::"
    outbool (cf, z"EmulateTransparency", Settings.Transparency);
    outbool (cf, z"DisplayFrameRate", Settings.DisplayFrameRate);
    cf.SetInt (z"SpeedControlMethod", Settings.SkipFrames);
    cf.SetInt (z"SaveSRAMEveryNSeconds", Settings.AutoSaveDelay);
    outbool (cf, z"BlockInvalidVRAMAccess", Settings.BlockInvalidVRAMAccessMaster);
    outbool (cf, z"AllowDPadContradictions", Settings.UpAndDown);

#undef z
#define z "Hacks::"
    cf.SetInt (z"SuperFXClockMultiplier", Settings.SuperFXClockMultiplier);
    cf.SetInt   (z"SoundInterpolationMethod", Settings.InterpolationMethod);
    outbool (cf, z"RemoveSpriteLimit", Settings.MaxSpriteTilesPerLine == 34 ? 0 : 1);
    outbool (cf, z"OverclockCPU", Settings.OneClockCycle == 6 ? 0 : 1);

#ifdef USE_JOYSTICK
#undef z
#define z "Input::"
    cf.SetInt (z"joystick_threshold", joystick_threshold);
#endif

#undef z

    for (int i = 0; i < NUM_JOYPADS; i++)
    {
        Binding *joypad = (Binding *) &pad[i];

        for (int j = 0; j < NUM_JOYPAD_LINKS; j++)
        {
            snprintf (key, PATH_MAX, "Joypad %d::%s", i, b_links[j].snes9x_name);
            joypad[j].to_string (buffer);
            cf.SetString (key, std::string (buffer));
        }
    }

    for (int i = NUM_JOYPAD_LINKS; b_links[i].snes9x_name; i++)
    {
        snprintf (key, PATH_MAX, "Shortcuts::%s", b_links[i].snes9x_name);
        shortcut[i - NUM_JOYPAD_LINKS].to_string (buffer);
        cf.SetString (key, std::string (buffer));
    }

    filename = get_config_file_name ();
    cf.SaveTo (filename);
    free (filename);

    return 0;
}

int Snes9xConfig::load_config_file ()
{
    struct stat file_info;
    char        *pathname;
    ConfigFile  cf;
    char        key[PATH_MAX];
    char        buffer[PATH_MAX];

    load_defaults ();

    pathname = get_config_dir ();

    if (stat (pathname, &file_info))
    {
        if (mkdir (pathname, 0755))
        {
            fprintf (stderr,
                     _("Couldn't create config directory: %s\n"),
                     pathname);
            return -1;
        }
    }
    else
    {
        chmod (pathname, 0755);
    }

    free (pathname);

    pathname = get_config_file_name ();

    if (stat (pathname, &file_info))
    {
        save_config_file ();
    }

    if (!cf.LoadFile (pathname))
        return -1;

    free (pathname);

    std::string none;
#define inbool(key, var) var = cf.GetBool (key)
#define inint(key, var) var = cf.GetInt (key)
#define infloat(key, var) var = atof (cf.GetString (key, none).c_str())
#define instr(key, var) strcpy (var, cf.GetString (key, none).c_str())

#undef z
#define z "Display::"
    inbool (z"FullscreenOnOpen", full_screen_on_open);
    inbool (z"ChangeDisplayResolution", change_display_resolution);
    inint  (z"VideoMode", xrr_index);
    inbool (z"ScaleToFit", scale_to_fit);
    inbool (z"MaintainAspectRatio", maintain_aspect_ratio);
    inint  (z"AspectRatio", aspect_ratio);
    inint  (z"SoftwareScaleFilter", scale_method);
    inint  (z"ScanlineFilterIntensity", scanline_filter_intensity);
    inbool (z"ShowOverscanArea", overscan);
    inint  (z"HiresEffect", hires_effect);
    inint  (z"ForceInvertedByteOrder", force_inverted_byte_order);
    inbool (z"Multithreading", multithreading);
    inint  (z"NumberOfThreads", num_threads);
    inint  (z"HardwareAcceleration", hw_accel);
    inbool (z"BilinearFilter", Settings.BilinearFilter);

#undef z
#define z "NTSC::"
    infloat (z"Hue", ntsc_setup.hue);
    infloat (z"Saturation", ntsc_setup.saturation);
    infloat (z"Contrast", ntsc_setup.contrast);
    infloat (z"Brightness", ntsc_setup.brightness);
    infloat (z"Sharpness", ntsc_setup.sharpness);
    infloat (z"Artifacts", ntsc_setup.artifacts);
    infloat (z"Gamma", ntsc_setup.gamma);
    infloat (z"Bleed", ntsc_setup.bleed);
    infloat (z"Fringing", ntsc_setup.fringing);
    infloat (z"Resolution", ntsc_setup.resolution);
    inint   (z"MergeFields", ntsc_setup.merge_fields);
    inint   (z"ScanlineIntensity", ntsc_scanline_intensity);

#ifdef USE_OPENGL
#undef z
#define z "OpenGL::"
    inbool (z"VSync", sync_to_vblank);
    inbool (z"ReduceInputLag", sync_every_frame);
    inbool (z"UsePixelBufferObjects", use_pbos);
    inint  (z"PixelBufferObjectBitDepth", pbo_format);
    inbool (z"UseNonPowerOfTwoTextures", npot_textures);
    inbool (z"EnableCustomShaders", use_shaders);
    instr  (z"ShaderFile", fragment_shader);
#endif

#undef z
#define z "Sound::"
    inbool (z"MuteSound", mute_sound);
    inbool (z"MuteSoundDuringTurbo", mute_sound_turbo);
    inint  (z"BufferSize", sound_buffer_size);
    inint  (z"Driver", sound_driver);
    inint  (z"InputRate", sound_input_rate);
    inbool (z"DynamicRateControl", Settings.DynamicRateControl);
    inint  (z"DynamicRateControlLimit", Settings.DynamicRateLimit);
    inbool (z"AutomaticInputRate", auto_input_rate);
    inbool (z"16bit", Settings.SixteenBitSound);
    inbool (z"Stereo", Settings.Stereo);
    inbool (z"ReverseStero", Settings.ReverseStereo);
    inint  (z"PlaybackRate", gui_config->sound_playback_rate);

#undef z
#define z "Files::"
    instr (z"LastDirectory", last_directory);
    instr (z"LastShaderDirectory", last_shader_directory);
    instr (z"SRAMDirectory", sram_directory);
    instr (z"SaveStateDirectory", savestate_directory);
    instr (z"CheatDirectory", cheat_directory);
    instr (z"PatchDirectory", patch_directory);
    instr (z"ExportDirectory", export_directory);

#undef z
#define z "Window State::"

    inint (z"MainWidth", window_width);
    inint (z"MainHeight", window_height);
    inint (z"PreferencesWidth", preferences_width);
    inint (z"PreferencesHeight", preferences_height);
    inbool (z"UIVisible", ui_visible);
    inbool (z"StatusBarVisible", statusbar_visible);
    inbool (z"Fullscreen", fullscreen);

#undef z
#define z "Netplay::"
    inbool (z"ActAsServer", netplay_is_server);
    inbool (z"UseResetToSync", netplay_sync_reset);
    inbool (z"SendROM", netplay_send_rom);
    inint (z"DefaultPort", netplay_default_port);
    inint (z"MaxFrameLoss", netplay_max_frame_loss);
    inint (z"LastUsedPort", netplay_last_port);
    instr (z"LastUsedROM", netplay_last_rom);
    instr (z"LastUsedHost", netplay_last_host);

#undef z
#define z "Behavior::"
    inbool (z"PauseEmulationWhenFocusLost", pause_emulation_on_switch);
    inint (z"DefaultESCKeyBehavior", default_esc_behavior);
    inbool (z"PreventScreensaver", prevent_screensaver);
    inbool (z"UseModalDialogs", modal_dialogs);
    inint (z"rewind_buffer_size", rewind_buffer_size);
    inint (z"rewind_granularity", rewind_granularity);

#undef z
#define z "Emulation::"
    inbool (z"EmulateTransparency", Settings.Transparency);
    inbool (z"DisplayFrameRate", Settings.DisplayFrameRate);
    inint (z"SpeedControlMethod", Settings.SkipFrames);
    inint (z"SaveSRAMEveryNSeconds", Settings.AutoSaveDelay);
    inbool (z"BlockInvalidVRAMAccess", Settings.BlockInvalidVRAMAccessMaster);
    inbool (z"AllowDPadContradictions", Settings.UpAndDown);

#undef z
#define z "Hacks::"
    inint  (z"SuperFXClockMultiplier", Settings.SuperFXClockMultiplier);
    inint  (z"SoundInterpolationMethod", Settings.InterpolationMethod);

    bool RemoveSpriteLimit;
    inbool (z"RemoveSpriteLimit", RemoveSpriteLimit);
    bool OverclockCPU;
    inbool (z"OverclockCPU", OverclockCPU);

#ifdef USE_JOYSTICK
#undef z
#define z "Input::"
    inint (z"joystick_threshold", joystick_threshold);
#endif

    for (int i = 0; i < NUM_JOYPADS; i++)
    {
        Binding *joypad = (Binding *) &pad[i];

        for (int j = 0; j < NUM_JOYPAD_LINKS; j++)
        {
            snprintf (key, PATH_MAX, "Joypad %d::%s", i, b_links[j].snes9x_name);
            instr (key, buffer);
            joypad[j] = Binding (buffer);
        }
    }

    for (int i = NUM_JOYPAD_LINKS; b_links[i].snes9x_name; i++)
    {
        snprintf (key, PATH_MAX, "Shortcuts::%s", b_links[i].snes9x_name);
        instr (key, buffer);
        shortcut[i - NUM_JOYPAD_LINKS] = Binding (buffer);
    }

    /* Validation */

    if (RemoveSpriteLimit)
        Settings.MaxSpriteTilesPerLine = 128;
    else
        Settings.MaxSpriteTilesPerLine = 34;

    if (OverclockCPU)
    {
        Settings.OneClockCycle = 4;
        Settings.OneSlowClockCycle = 5;
        Settings.TwoClockCycles = 6;
    }
    else
    {
        Settings.OneClockCycle = 6;
        Settings.OneSlowClockCycle = 8;
        Settings.TwoClockCycles = 12;
    }

    if (default_esc_behavior != ESC_TOGGLE_MENUBAR)
        fullscreen = false;

#ifdef USE_HQ2X
    if (scale_method >= NUM_FILTERS)
        scale_method = 0;
#else
    if (scale_method >= NUM_FILTERS - 3)
        scale_method = 0;
#endif /* USE_HQ2X */

#ifdef USE_XBRZ
    if (scale_method >= NUM_FILTERS)
        scale_method = 0;
#else
    if (scale_method >= NUM_FILTERS - 3)
        scale_method = 0;
#endif /* USE_XBRZ */

#ifdef USE_OPENGL
    if (pbo_format != 32)
        pbo_format = 16;
#endif

    if (Settings.SkipFrames == THROTTLE_SOUND_SYNC)
        Settings.SoundSync = 1;
    else
        Settings.SoundSync = 0;

    hires_effect = CLAMP (hires_effect, 0, 2);
    Settings.DynamicRateLimit = CLAMP (Settings.DynamicRateLimit, 1, 1000);
    Settings.SuperFXClockMultiplier = CLAMP (Settings.SuperFXClockMultiplier, 50, 400);
    ntsc_scanline_intensity = MAX (ntsc_scanline_intensity, 4);
    scanline_filter_intensity = MAX (scanline_filter_intensity, 3);

    return 0;
}

void Snes9xConfig::rebind_keys ()
{
    s9xcommand_t cmd;
    char         buf[256];

    S9xUnmapAllControls ();

    for (int joypad_i = 0; joypad_i < NUM_JOYPADS; joypad_i++ )
    {
        Binding *bin = (Binding *) &pad[joypad_i];

        for (int button_i = 0; button_i < NUM_JOYPAD_LINKS; button_i++)
        {
            snprintf (buf,
                      256,
                      "Joypad%d %s",
                      (joypad_i % 5) + 1,
                      b_links[button_i].snes9x_name);

            cmd = S9xGetPortCommandT (buf);

            S9xMapButton (bin[button_i].base_hex (), cmd, FALSE);
        }
    }

    for (int i = NUM_JOYPAD_LINKS; b_links[i].snes9x_name; i++)
    {
        snprintf (buf, 256, "%s", b_links[i].snes9x_name);
        cmd = S9xGetPortCommandT (buf);
        S9xMapButton (shortcut[i - NUM_JOYPAD_LINKS].base_hex (),
                      cmd,
                      FALSE);
    }

    cmd = S9xGetPortCommandT ("Pointer Mouse1+Superscope+Justifier1");
    S9xMapPointer (BINDING_MOUSE_POINTER, cmd, TRUE);

    cmd = S9xGetPortCommandT ("{Mouse1 L,Superscope Fire,Justifier1 Trigger}");
    S9xMapButton (BINDING_MOUSE_BUTTON0, cmd, FALSE);

    cmd = S9xGetPortCommandT ("{Justifier1 AimOffscreen Trigger,Superscope AimOffscreen}");
    S9xMapButton (BINDING_MOUSE_BUTTON1, cmd, FALSE);

    cmd = S9xGetPortCommandT ("{Mouse1 R,Superscope Cursor,Justifier1 Start}");
    S9xMapButton (BINDING_MOUSE_BUTTON2, cmd, FALSE);
}

void Snes9xConfig::reconfigure ()
{
    rebind_keys ();
}