/*  
   XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS)

   Configuration dialog
   
   Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org>
   (C) Copyright 1999-2009 Tecnic Software productions (TNSP)
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License along
   with this program; if not, write to the Free Software Foundation, Inc.,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "xs_config.h"

#ifdef AUDACIOUS_PLUGIN
#include <audacious/plugin.h>
#define XS_CONFIG_FILE          mcs_handle_t
#define XS_CONFIG_OPEN          aud_cfg_db_open
#define XS_CONFIG_FREE          aud_cfg_db_close

#define XS_CFG_SET_STRING(q,z)  aud_cfg_db_set_string(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_FLOAT(q,z)   aud_cfg_db_set_float(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_INT(q,z)     aud_cfg_db_set_int(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_BOOL(q,z)    aud_cfg_db_set_bool(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_STRING(q,z)  aud_cfg_db_get_string(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_FLOAT(q,z)   aud_cfg_db_get_float(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_INT(q,z)     aud_cfg_db_get_int(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_BOOL(q,z)    aud_cfg_db_get_bool(cfg, XS_CONFIG_IDENT, q, z)
#else
#include <xmms/configfile.h>
#define XS_CONFIG_FILE          ConfigFile
#define XS_CONFIG_OPEN          xmms_cfg_open_default_file
#define XS_CONFIG_FREE          xmms_cfg_free

#define XS_CFG_SET_STRING(q,z)  xmms_cfg_write_string(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_FLOAT(q,z)   xmms_cfg_write_float(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_INT(q,z)     xmms_cfg_write_int(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_SET_BOOL(q,z)    xmms_cfg_write_boolean(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_STRING(q,z)  xmms_cfg_read_string(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_FLOAT(q,z)   xmms_cfg_read_float(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_INT(q,z)     xmms_cfg_read_int(cfg, XS_CONFIG_IDENT, q, z)
#define XS_CFG_GET_BOOL(q,z)    xmms_cfg_read_boolean(cfg, XS_CONFIG_IDENT, q, z)
#endif
#include "xs_support.h"
#include "xs_glade.h"
#include "xs_interface.h"
#include "xs_backend.h"

/*
 * Global widgets
 */
static GtkWidget *xs_configwin = NULL,
    *xs_sldb_fileselector = NULL,
    *xs_stil_fileselector = NULL,
    *xs_hvsc_selector = NULL,
    *xs_rom_selector = NULL,
    *xs_filt_importselector = NULL,
    *xs_filt_exportselector = NULL;


#define LUW(x)    lookup_widget(xs_configwin, x)


/* Samplerates
 */
static const gchar *xs_samplerates_table[] =
{
    "8000", "11025", "22050", 
    "44100", "48000", "64000",
    "96000"
};

static const gint xs_nsamplerates_table = sizeof(xs_samplerates_table) / sizeof(xs_samplerates_table[0]);

/*
 * Configuration specific stuff
 */
XS_MUTEX(xs_cfg);
struct xs_cfg_t xs_cfg;

static xs_cfg_item_t xs_cfgtable[] = {
{ CTYPE_INT,    &xs_cfg.audioBitsPerSample,     "audioBitsPerSample" },
{ CTYPE_INT,    &xs_cfg.audioChannels,          "audioChannels" },
{ CTYPE_INT,    &xs_cfg.audioFrequency,         "audioFrequency" },

{ CTYPE_BOOL,   &xs_cfg.mos8580,                "mos8580" },
{ CTYPE_BOOL,   &xs_cfg.forceModel,             "forceModel" },
{ CTYPE_BOOL,   &xs_cfg.emulateFilters,         "emulateFilters" },
{ CTYPE_FLOAT,  &xs_cfg.sid1Filter.fs,          "filterFs" },
{ CTYPE_FLOAT,  &xs_cfg.sid1Filter.fm,          "filterFm" },
{ CTYPE_FLOAT,  &xs_cfg.sid1Filter.ft,          "filterFt" },
{ CTYPE_INT,    &xs_cfg.memoryMode,             "memoryMode" },
{ CTYPE_INT,    &xs_cfg.clockSpeed,             "clockSpeed" },
{ CTYPE_BOOL,   &xs_cfg.forceSpeed,             "forceSpeed" },

{ CTYPE_INT,    &xs_cfg.playerEngine,           "playerEngine" },

{ CTYPE_INT,    &xs_cfg.sid2Builder,            "sid2Builder" },
{ CTYPE_INT,    &xs_cfg.sid2OptLevel,           "sid2OptLevel" },
{ CTYPE_INT,    &xs_cfg.sid2NFilterPresets,     "sid2NFilterPresets" },

{ CTYPE_INT,    &xs_cfg.residSampling,          "residSampling" },

{ CTYPE_BOOL,   &xs_cfg.playMaxTimeEnable,      "playMaxTimeEnable" },
{ CTYPE_BOOL,   &xs_cfg.playMaxTimeUnknown,     "playMaxTimeUnknown" },
{ CTYPE_INT,    &xs_cfg.playMaxTime,            "playMaxTime" },
{ CTYPE_BOOL,   &xs_cfg.playMinTimeEnable,      "playMinTimeEnable" },
{ CTYPE_INT,    &xs_cfg.playMinTime,            "playMinTime" },
{ CTYPE_BOOL,   &xs_cfg.songlenDBEnable,        "songlenDBEnable" },
{ CTYPE_STR,    &xs_cfg.songlenDBPath,          "songlenDBPath" },

{ CTYPE_BOOL,   &xs_cfg.stilDBEnable,           "stilDBEnable" },
{ CTYPE_STR,    &xs_cfg.stilDBPath,             "stilDBPath" },
{ CTYPE_STR,    &xs_cfg.hvscPath,               "hvscPath" },

{ CTYPE_STR,    &xs_cfg.romPath,                "romPath" },

#ifndef AUDACIOUS_PLUGIN
{ CTYPE_INT,    &xs_cfg.subsongControl,         "subsongControl" },
{ CTYPE_BOOL,   &xs_cfg.detectMagic,            "detectMagic" },
#endif

{ CTYPE_BOOL,   &xs_cfg.titleOverride,          "titleOverride" },
{ CTYPE_STR,    &xs_cfg.titleFormat,            "titleFormat" },

{ CTYPE_BOOL,   &xs_cfg.subAutoEnable,          "subAutoEnable" },
{ CTYPE_BOOL,   &xs_cfg.subAutoMinOnly,         "subAutoMinOnly" },
{ CTYPE_INT,    &xs_cfg.subAutoMinTime,         "subAutoMinTime" },
};

static const gint xs_ncfgtable = sizeof(xs_cfgtable) / sizeof(xs_cfgtable[0]);


static xs_wid_item_t xs_cfgitems[] = {
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_res_16bit",        &xs_cfg.audioBitsPerSample,     XS_RES_16BIT },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_res_8bit",         &xs_cfg.audioBitsPerSample,     XS_RES_8BIT },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_chn_mono",         &xs_cfg.audioChannels,          XS_CHN_MONO },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_chn_stereo",       &xs_cfg.audioChannels,          XS_CHN_STEREO },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_chn_autopan",      &xs_cfg.audioChannels,          XS_CHN_AUTOPAN },
{ WTYPE_COMBO,  CTYPE_INT,      "cfg_samplerate",       &xs_cfg.audioFrequency,         XS_AUDIO_FREQ },

{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sidplay1",     &xs_cfg.playerEngine,           XS_ENG_SIDPLAY1 },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sidplay2",     &xs_cfg.playerEngine,           XS_ENG_SIDPLAY2 },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sidplayfp",    &xs_cfg.playerEngine,           XS_ENG_SIDPLAYFP },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_mem_real",     &xs_cfg.memoryMode,             XS_MPU_REAL },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_mem_banksw",   &xs_cfg.memoryMode,             XS_MPU_BANK_SWITCHING },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_mem_transrom", &xs_cfg.memoryMode,             XS_MPU_TRANSPARENT_ROM },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_mem_playsid",  &xs_cfg.memoryMode,             XS_MPU_PLAYSID_ENVIRONMENT },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_emu_mos8580",      &xs_cfg.mos8580,                0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_emu_sid_force",    &xs_cfg.forceModel,             0 },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_clock_ntsc",   &xs_cfg.clockSpeed,             XS_CLOCK_NTSC },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_clock_pal",    &xs_cfg.clockSpeed,             XS_CLOCK_PAL },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_emu_clock_force",  &xs_cfg.forceSpeed,             0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_emu_sp2_opt",      &xs_cfg.sid2OptLevel,           0 },

{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sp2_resid_fp", &xs_cfg.sid2Builder,            XS_BLD_RESID_FP },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sp2_resid",    &xs_cfg.sid2Builder,            XS_BLD_RESID },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_sp2_hardsid",  &xs_cfg.sid2Builder,            XS_BLD_HARDSID },

{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_resid_interpolate", &xs_cfg.residSampling,     XS_RESID_INTERPOLATE },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_emu_resid_resample_fir", &xs_cfg.residSampling,    XS_RESID_RESAMPLE_FIR },

{ WTYPE_TEXT,   CTYPE_STR,      "cfg_emu_rom_path",     &xs_cfg.romPath,                0 },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_emu_filters",      &xs_cfg.emulateFilters,         0 },
{ WTYPE_SCALE,  CTYPE_FLOAT,    "cfg_sp1_filter_fs",    &xs_cfg.sid1Filter.fs,          0 },
{ WTYPE_SCALE,  CTYPE_FLOAT,    "cfg_sp1_filter_fm",    &xs_cfg.sid1Filter.fm,          0 },
{ WTYPE_SCALE,  CTYPE_FLOAT,    "cfg_sp1_filter_ft",    &xs_cfg.sid1Filter.ft,          0 },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_maxtime_enable",   &xs_cfg.playMaxTimeEnable,      0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_maxtime_unknown",  &xs_cfg.playMaxTimeUnknown,     0 },
{ WTYPE_SPIN,   CTYPE_INT,      "cfg_maxtime",          &xs_cfg.playMaxTime,            0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_mintime_enable",   &xs_cfg.playMinTimeEnable,      0 },
{ WTYPE_SPIN,   CTYPE_INT,      "cfg_mintime",          &xs_cfg.playMinTime,            0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_sld_enable",       &xs_cfg.songlenDBEnable,        0 },
{ WTYPE_TEXT,   CTYPE_STR,      "cfg_sld_dbpath",       &xs_cfg.songlenDBPath,          0 },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_stil_enable",      &xs_cfg.stilDBEnable,           0 },
{ WTYPE_TEXT,   CTYPE_STR,      "cfg_stil_dbpath",      &xs_cfg.stilDBPath,             0 },
{ WTYPE_TEXT,   CTYPE_STR,      "cfg_hvsc_path",        &xs_cfg.hvscPath,               0 },


#ifndef AUDACIOUS_PLUGIN
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_subctrl_none",     &xs_cfg.subsongControl,         XS_SSC_NONE },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_subctrl_seek",     &xs_cfg.subsongControl,         XS_SSC_SEEK },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_subctrl_popup",    &xs_cfg.subsongControl,         XS_SSC_POPUP },
{ WTYPE_BGROUP, CTYPE_INT,      "cfg_subctrl_patch",    &xs_cfg.subsongControl,         XS_SSC_PATCH },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_detectmagic",      &xs_cfg.detectMagic,            0 },
#endif

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_ftitle_override",  &xs_cfg.titleOverride,          0 },
{ WTYPE_TEXT,   CTYPE_STR,      "cfg_ftitle_format",    &xs_cfg.titleFormat,            0 },

{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_subauto_enable",   &xs_cfg.subAutoEnable,          0 },
{ WTYPE_BUTTON, CTYPE_BOOL,     "cfg_subauto_min_only", &xs_cfg.subAutoMinOnly,         0 },
{ WTYPE_SPIN,   CTYPE_INT,      "cfg_subauto_mintime",  &xs_cfg.subAutoMinTime,         0 },
};

static const gint xs_nwidtable = sizeof(xs_cfgitems) / sizeof(xs_cfgitems[0]);


/* Check configuration
 */
gboolean xs_check_configuration(gboolean checkOnly)
{
    gboolean changed = FALSE;

    // Automatic adjustments
    switch (xs_cfg.playerEngine)
    {
#if !defined(HAVE_SIDPLAYFP)
        case XS_ENG_SIDPLAYFP:
            changed = TRUE;
#if defined(HAVE_SIDPLAY2)
            xs_cfg.playerEngine = XS_ENG_SIDPLAY2; break;
#elif defined(HAVE_SIDPLAY1)
            xs_cfg.playerEngine = XS_ENG_SIDPLAY1; break;
#endif
#endif

#if !defined(HAVE_SIDPLAY2)
        case XS_ENG_SIDPLAY2:
            changed = TRUE;
#if defined(HAVE_SIDPLAYFP)
            xs_cfg.playerEngine = XS_ENG_SIDPLAYFP; break;
#elif defined(HAVE_SIDPLAY1)
            xs_cfg.playerEngine = XS_ENG_SIDPLAY1; break;
#endif
#endif

#if !defined(HAVE_SIDPLAY1)
        case XS_ENG_SIDPLAY1:
            changed = TRUE;
#if defined(HAVE_SIDPLAYFP)
            xs_cfg.playerEngine = XS_ENG_SIDPLAYFP; break;
#elif defined(HAVE_SIDPLAY2)
            xs_cfg.playerEngine = XS_ENG_SIDPLAY2; break;
#endif
#endif
    }

    switch (xs_cfg.sid2Builder)
    {
#if !defined(HAVE_RESID_BUILDER) && defined(HAVE_RESID_FP_BUILDER)
        case XS_BLD_RESID:
            changed = TRUE;
            xs_cfg.sid2Builder = XS_BLD_RESID_FP; break;
#endif
#if defined(HAVE_RESID_BUILDER) && !defined(HAVE_RESID_FP_BUILDER)
        case XS_BLD_RESID_FP:
            changed = TRUE;
            xs_cfg.sid2Builder = XS_BLD_RESID; break;
#endif

#if !defined(HAVE_HARDSID_BUILDER)
        case XS_BLD_HARDSID:
            changed = TRUE;
#if defined(HAVE_RESID_FP_BUILDER)
           xs_cfg.sid2Builder = XS_BLD_RESID_FP; break;
#elif defined(HAVE_RESID_BUILDER)
           xs_cfg.sid2Builder = XS_BLD_RESID; break;
#endif
#endif
    }

    // Check for plain errors
    switch (xs_cfg.playerEngine)
    {
        case XS_ENG_SIDPLAYFP:
            {
            if (xs_cfg.romPath == NULL || xs_cfg.romPath[0] == 0)
            {
                if (checkOnly) return FALSE;
                xs_messagebox(_("Error"),
                _("You have selected libSIDPlayFP backend, but not set the C64 ROM images directory.\n"));
                return FALSE;
            }
            
            if (!xs_is_dir_path(xs_cfg.romPath))
            {
                if (checkOnly) return FALSE;
                xs_messagebox(_("Error"),
                _("The C64 ROM images directory path '%s' is not a directory.\n"),
                    xs_cfg.romPath);
                return FALSE;
            }
            
            gint i;
            gchar *result = NULL;
            for (i = 0; i < XS_C64_ROM_IMAGES; i++)
            {
                guint8 *buf = NULL;
                if (!xs_load_rom_image(i, &buf))
                {
                    const XSROMImageData *rom = &xs_rom_images[i];
                    gchar *tmp = g_strdup_printf("%s%s file '%s'",
                        result != NULL ? ", " : "",
                        rom->name, rom->filename);

                    xs_pstrcat(&result, tmp);
                    g_free(tmp);
                }
                g_free(buf);
            }

            if (result != NULL)
            {
                if (checkOnly) return FALSE;
                xs_messagebox(_("Error"),
                _("Could not load the required C64 ROM image files from '%s'.\n"
                "\n"
                "Following files could not be found: %s."),
                xs_cfg.romPath, result);
                g_free(result);
                return FALSE;
            }
            }
            break;
    }

    return !changed;
}


/* Reset/initialize the configuration
 */
void xs_init_configuration(void)
{
    /* Lock configuration mutex */
    XSDEBUG("initializing configuration ...\n");
    XS_MUTEX_LOCK(xs_cfg);

    memset(&xs_cfg, 0, sizeof(xs_cfg));
    
    /* Initialize values with sensible defaults */
    xs_cfg.audioBitsPerSample = XS_RES_16BIT;
    xs_cfg.audioChannels = XS_CHN_MONO;
    xs_cfg.audioFrequency = XS_AUDIO_FREQ;

    xs_cfg.mos8580 = FALSE;
    xs_cfg.forceModel = FALSE;

    /* Filter values */
    xs_cfg.emulateFilters = TRUE;
    xs_cfg.sid1Filter.fs = XS_SIDPLAY1_FS;
    xs_cfg.sid1Filter.fm = XS_SIDPLAY1_FM;
    xs_cfg.sid1Filter.ft = XS_SIDPLAY1_FT;

#if defined(HAVE_SIDPLAYFP)
    xs_cfg.playerEngine = XS_ENG_SIDPLAYFP;
    xs_cfg.memoryMode = XS_MPU_REAL;
#elif defined(HAVE_SIDPLAY2)
    xs_cfg.playerEngine = XS_ENG_SIDPLAY2;
    xs_cfg.memoryMode = XS_MPU_REAL;
#elif defined(HAVE_SIDPLAY1)
    xs_cfg.playerEngine = XS_ENG_SIDPLAY1;
    xs_cfg.memoryMode = XS_MPU_BANK_SWITCHING;
#else
#  error This should not happen! No emulator engines configured in!
#endif

    xs_cfg.clockSpeed = XS_CLOCK_PAL;
    xs_cfg.forceSpeed = FALSE;

    xs_cfg.sid2OptLevel = 0;
    xs_cfg.sid2NFilterPresets = 0;

#if defined(HAVE_RESID_FP_BUILDER)
    xs_cfg.sid2Builder = XS_BLD_RESID_FP;
#elif defined(HAVE_RESID_BUILDER)
    xs_cfg.sid2Builder = XS_BLD_RESID;
#elif defined(HAVE_HARDSID_BUILDER)
    xs_cfg.sid2Builder = XS_BLD_HARDSID;
#elif defined(HAVE_SIDPLAY2)
#  error This should not happen! No supported SIDPlay2 builders configured in!
#endif

    xs_cfg.playMaxTimeEnable = FALSE;
    xs_cfg.playMaxTimeUnknown = FALSE;
    xs_cfg.playMaxTime = 150;

    xs_cfg.playMinTimeEnable = FALSE;
    xs_cfg.playMinTime = 15;

    xs_cfg.songlenDBEnable = FALSE;
    xs_pstrcpy(&xs_cfg.songlenDBPath, "~/C64Music/Songlengths.txt");

    xs_cfg.stilDBEnable = FALSE;
    xs_pstrcpy(&xs_cfg.stilDBPath, "~/C64Music/DOCUMENTS/STIL.txt");
    xs_pstrcpy(&xs_cfg.hvscPath, "~/C64Music");

    xs_pstrcpy(&xs_cfg.romPath, "/usr/lib/vice/C64");

#if defined(HAVE_SONG_POSITION) && !defined(AUDACIOUS_PLUGIN)
    xs_cfg.subsongControl = XS_SSC_PATCH;
#else
    xs_cfg.subsongControl = XS_SSC_POPUP;
#endif
    xs_cfg.detectMagic = FALSE;

    xs_cfg.titleOverride = FALSE;

#ifdef AUDACIOUS_PLUGIN
    xs_pstrcpy(&xs_cfg.titleFormat, "${artist} - ${title} (${copyright}) <${subsong-id}/${subsong-num}> [${sid-model}/${sid-speed}]");
#else
    xs_pstrcpy(&xs_cfg.titleFormat, "%p - %t (%c) <%n/%N> [%m/%C]");
#endif

    xs_cfg.subAutoEnable = FALSE;
    xs_cfg.subAutoMinOnly = TRUE;
    xs_cfg.subAutoMinTime = 15;


    /* Unlock the configuration */
    XS_MUTEX_UNLOCK(xs_cfg);
}


/* Filter configuration handling
 */
static void xs_filters_error(const gchar *fmt, ...)
{
    va_list ap;
    gchar *msg;
    
    va_start(ap, fmt);
    msg = g_strdup_vprintf(fmt, ap);
    va_end(ap);
    
    xmms_show_message(_(PACKAGE_NAME " Error"), msg, _("OK"), TRUE, NULL, NULL);
    g_free(msg);
}


static void xs_filter_free(xs_sid_filter_t *filter)
{
    if (filter)
    {
        g_free(filter->name);
        filter->name = NULL;
        g_free(filter);
    }
}


#define XS_FITEM (4 * 2)

static gboolean xs_filter_load_into(XS_CONFIG_FILE *cfg, gint nFilter, xs_sid_filter_t *filter)
{
    gchar tmpKey[64], *tmpStr;
    gint i, j;

    /* Get fields from config */
    g_snprintf(tmpKey, sizeof(tmpKey), "filter%dType", nFilter);
    if (!XS_CFG_GET_INT(tmpKey, &(filter->type)))
        return FALSE;
    
    g_snprintf(tmpKey, sizeof(tmpKey), "filter%dName", nFilter);
    if (!XS_CFG_GET_STRING(tmpKey, &tmpStr))
        return FALSE;
    
    filter->name = g_strdup(tmpStr);
    if (filter->name == NULL)
        return FALSE;
    
    switch (filter->type)
    {
        case 1:
            
            /* Types 1 has points */
            g_snprintf(tmpKey, sizeof(tmpKey), "filter%dNPoints", nFilter);
            if (!XS_CFG_GET_INT(tmpKey, &(filter->npoints)))
                return FALSE;
        
            g_snprintf(tmpKey, sizeof(tmpKey), "filter%dPoints", nFilter);
            if (!XS_CFG_GET_STRING(tmpKey, &tmpStr))
                return FALSE;
        
            for (i = 0, j = 0; i < filter->npoints; i++, j += XS_FITEM)
            {
                if (sscanf(&tmpStr[j], "%4x%4x",
                    &(filter->points[i].x),
                    &(filter->points[i].y)) != 2)
                    return FALSE;
            }
            break;
        
        case 3:
            /* Type 3 has tunables */
            g_snprintf(tmpKey, sizeof(tmpKey), "filter%dData", nFilter);
            if (!XS_CFG_GET_STRING(tmpKey, &tmpStr))
                return FALSE;
            
            if (sscanf(tmpStr, "%f,%f,%f,%f", &filter->rate, &filter->point,
                &filter->voice_nonlinearity, &filter->cf_treshold) != 4)
                return FALSE;
            
            g_snprintf(tmpKey, sizeof(tmpKey), "filter%dData3", nFilter);
            if (!XS_CFG_GET_STRING(tmpKey, &tmpStr))
                return FALSE;
            
            if (sscanf(tmpStr, "%f,%f,%f,%f", &filter->baseresistance,
                &filter->offset, &filter->steepness,
                &filter->minimumfetresistance) != 4)
                return FALSE;
            break;
        
        case 4:
            /* Type 4 has fewer tunables */
            g_snprintf(tmpKey, sizeof(tmpKey), "filter%dData4", nFilter);
            if (!XS_CFG_GET_STRING(tmpKey, &tmpStr))
                return FALSE;
            
            if (sscanf(tmpStr, "%f,%f", &filter->k, &filter->b) != 2)
                return FALSE;
            break;
        
        default:
            xs_error("Unknown filter type %d for '%s' (#%d).\n", filter->type, filter->name, nFilter);
            return FALSE;
    }
    
    return TRUE;
}


static xs_sid_filter_t * xs_filter_load(XS_CONFIG_FILE *cfg, gint nFilter)
{
    xs_sid_filter_t *filter;
    
    /* Allocate filter struct */
    if ((filter = g_malloc0(sizeof(xs_sid_filter_t))) == NULL)
        return NULL;
    
    if (!xs_filter_load_into(cfg, nFilter, filter))
    {
        xs_error("Error loading filter %d from configuration.\n", nFilter);
        xs_filter_free(filter);
        return NULL;
    } else
        return filter;
}


#if 0
static gboolean xs_filter_save(XS_CONFIG_FILE *cfg, xs_sid_filter_t *pFilter, gint nFilter)
{
    gchar *tmpValue, tmpKey[64];
    gint i, j;
    
    /* Allocate memory for value string */
    tmpValue = g_malloc(sizeof(gchar) * XS_FITEM * (pFilter->npoints + 1));
    if (tmpValue == NULL)
        return FALSE;
    
    /* Make value string */
    for (i = 0, j = 0; i < pFilter->npoints; i++, j += XS_FITEM)
    {
        g_snprintf(&tmpValue[j], XS_FITEM+1, "%04x%04x",
            pFilter->points[i].x,
            pFilter->points[i].y);
    }
    
    /* Write into the configuration */
    g_snprintf(tmpKey, sizeof(tmpKey), "filter%dName", nFilter);
    XS_CFG_SET_STRING(tmpKey, pFilter->name);
    
    g_snprintf(tmpKey, sizeof(tmpKey), "filter%dNPoints", nFilter);
    XS_CFG_SET_INT(tmpKey, pFilter->npoints);

    g_snprintf(tmpKey, sizeof(tmpKey), "filter%dPoints", nFilter);
    XS_CFG_SET_STRING(tmpKey, tmpValue);
    
    g_free(tmpValue);
    return TRUE;
}
#endif


/* Filter exporting and importing. These functions export/import
 * filter settings to/from SIDPlay2 INI-type files.
 */
static gboolean xs_fgetitem(gchar *inLine, size_t *linePos, gchar sep, gchar *tmpStr, size_t tmpMax)
{
    size_t i;
    
    for (i = 0; i < tmpMax && inLine[*linePos] &&
        inLine[*linePos] != sep; i++, (*linePos)++)
        tmpStr[i] = inLine[*linePos];
    
    tmpStr[i] = 0;
    while (--i > 0 && isspace(tmpStr[i])) tmpStr[i] = 0;
    
    xs_findnext(inLine, linePos);
    return (inLine[*linePos] == sep);
}


static gboolean xs_chkf(xs_sid_filter_t *filter, const gchar *str, const gchar *name, gint type)
{
    if (g_strncasecmp(str, name, strlen(name)))
        return FALSE;
    
    if (filter->type != type)
    {
        if (filter->type == -1)
        {
            filter->type = type;
            return TRUE;
        }
        else
        {
            xs_error("Unexpected key '%s' for filter type %d.\n");
            return FALSE;
        }
    } else
        return TRUE;
}

static gboolean xs_filters_import(const gchar *filename, xs_sid_filter_t **pFilters, gint *nFilters)
{
    FILE *inFile;
    gchar inLine[XS_BUF_SIZE], tmpStr[XS_BUF_SIZE];
    gchar *sectName = NULL;
    gboolean inSection, isError = FALSE;
    size_t lineNum, i;
    xs_sid_filter_t *filter = NULL;

    (void) pFilters;
    (void) nFilters;
    
    fprintf(stderr, "xs_filters_import(%s)\n", filename);

    if ((inFile = fopen(filename, "ra")) == NULL)
    {
        xs_filters_error("");
        return FALSE;
    }

    fprintf(stderr, "importing...\n");
    
    inSection = FALSE;
    lineNum = 0;
    while (fgets(inLine, XS_BUF_SIZE, inFile) != NULL && !isError)
    {
        size_t linePos = 0;
        lineNum++;
        
        xs_findnext(inLine, &linePos);
        if (isalpha(inLine[linePos]))
        {
            /* A new key/value pair */
            if (!xs_fgetitem(inLine, &linePos, '=', tmpStr, XS_BUF_SIZE))
            {
                xs_error("Invalid line '%s' :: expected =", inLine);
                isError = TRUE;
            }
            else
            if (inSection)
            {
                linePos++;
                xs_findnext(inLine, &linePos);
                
                if (xs_chkf(filter, tmpStr, "points", 1))
                {
                }
                else
                if (xs_chkf(filter, tmpStr, "point", 1))
                {
                
                }
                else
                if (!g_strncasecmp(tmpStr, "type", 4))
                {
                    if (filter->type != -1)
                    {
                        xs_error("Filter type %d already set for '%s'\n",
                            filter->type, sectName);
                    }
                }
                else
                {
                    xs_error("Unsupported definition '%s' @ '%s'\n",
                        tmpStr, sectName);
                }
            }
        }
        else
        if (inLine[linePos] == '[')
        {
            /* Check for existing section */
            if (inSection)
            {
                /* Submit definition */
                fprintf(stderr, "filter ends: %s\n", sectName);
                if ((filter = g_malloc0(sizeof(xs_sid_filter_t))) == NULL)
                {
                    fprintf(stderr, "could not allocate ..\n");
                }
                else
                {
                    
                }
                g_free(sectName);
            }
            
            /* New filter(?) section starts */
            linePos++;
            for (i = 0; i < XS_BUF_SIZE-1 && inLine[linePos] && inLine[linePos] != ']'; i++, linePos++)
                tmpStr[i] = inLine[linePos];
            tmpStr[i] = 0;
            
            if (inLine[linePos] != ']')
            {
                fprintf(stderr, "invalid! expected ']': %s\n", inLine);
            }
            else
            {
                if (!g_strncasecmp(tmpStr, "filter", 6))
                {
                    sectName = strdup(tmpStr + 6);
                    fprintf(stderr, "filter: %s\n", sectName);
                    inSection = TRUE;
                }
                else
                {
                    fprintf(stderr, "ignoring section: %s\n", tmpStr);
                    inSection = FALSE;
                }
            }
        }
        else if (inLine[linePos] != '#' && inLine[linePos] != ';' && inLine[linePos] != 0)
        {
            /* Syntax error */
            xs_error("Syntax error: '%s'\n", inLine);
            isError = TRUE;
        }
    }
    
    fclose(inFile);
    return TRUE;
}


static gboolean xs_filter_export(FILE *outFile, xs_sid_filter_t *filter)
{
    gint i;

    fprintf(outFile,
    "[Filter%s]\n"
    "type=%d\n",
    filter->name, filter->type);
    
    switch (filter->type)
    {
        case 1:
            fprintf(outFile, "points=%d\n", filter->npoints);
            
            for (i = 0; i < filter->npoints; i++)
            {
                fprintf(outFile,
                "point%d=%d,%d\n",
                i + 1,
                filter->points[i].x,
                filter->points[i].y);
            }
            break;
        
        case 3:
            fprintf(outFile,
            "DistortionRate            = %f\n"
            "DistortionPoint           = %f\n"
            "VoiceNonlinearity         = %f\n"
            "DistortionCFThreshold     = %f\n",
            filter->rate, filter->point,
            filter->voice_nonlinearity,
            filter->cf_treshold);
            
            fprintf(outFile,
            "Type3BaseResistance       = %f\n"
            "Type3Offset               = %f\n"
            "Type3Steepness            = %f\n"
            "Type3MinimumFETResistance = %f\n",
            filter->baseresistance, filter->offset,
            filter->steepness, filter->minimumfetresistance);
            break;

        case 4:
            fprintf(outFile,
            "Type4K=%f\n"
            "Type4B=%f\n",
            filter->k, filter->b);
            break;
        
        default:
            xs_error("Filter '%s' has type %d, which is unsupported by export.\n",
            filter->name, filter->type);
            return FALSE;
    }
    
    fprintf(outFile, "\n");
    return TRUE;
}


static gboolean xs_filters_export(const gchar *filename, xs_sid_filter_t **filters, gint nfilters)
{
    gboolean result = TRUE;
    FILE *outFile;
    gint n;
    
    /* Open/create the file */
    if ((outFile = fopen(filename, "wa")) == NULL)
    {
        xs_filters_error("Could not open '%s' for writing! Not exporting.", filename);
        return FALSE;
    }
    
    /* Header */
    fprintf(outFile,
    "; SIDPlay2 compatible filter definition file\n"
    "; Exported by " PACKAGE_STRING "\n\n");
    
    /* Write each filter spec in "INI"-style format */
    for (n = 0; n < nfilters; n++)
    {
        if (!xs_filter_export(outFile, filters[n]))
        {
            result = FALSE;
            break;
        }
    }
    
    fclose(outFile);
    
    if (!result)
        xs_filters_error("Some filters could not be exported!");
    
    return result;
}


/* Get the configuration (from file or default)
 */
gboolean xs_read_configuration(void)
{
    XS_CONFIG_FILE *cfg;
    gint i;
    gboolean configOK = TRUE;

    /* Try to open the XMMS configuration file  */
    XS_MUTEX_LOCK(xs_cfg);
    XSDEBUG("loading from config-file ...\n");

    cfg = XS_CONFIG_OPEN();
    if (cfg == NULL)
    {
        configOK = FALSE;
        goto error;
    }

    /* Read the new settings from XMMS configuration file */
    for (i = 0; i < xs_ncfgtable; i++)
    switch (xs_cfgtable[i].itemType)
    {
        case CTYPE_INT:
            if (!XS_CFG_GET_INT(xs_cfgtable[i].itemName,
                (gint *) xs_cfgtable[i].itemData))
                configOK = FALSE;
            break;

        case CTYPE_BOOL:
            if (!XS_CFG_GET_BOOL(xs_cfgtable[i].itemName,
                (gboolean *) xs_cfgtable[i].itemData))
                configOK = FALSE;
            break;

        case CTYPE_FLOAT:
            if (!XS_CFG_GET_FLOAT(xs_cfgtable[i].itemName,
                (gfloat *) xs_cfgtable[i].itemData))
                configOK = FALSE;
            break;
        
        case CTYPE_STR:
            {
                gchar *tmpStr;
                if (XS_CFG_GET_STRING(xs_cfgtable[i].itemName,
                    (gchar **) &tmpStr))
                {
                    xs_pstrcpy((gchar **) xs_cfgtable[i].itemData, tmpStr);
                    g_free(tmpStr);
                }
                else
                    configOK = FALSE;
            }
            break;
    }
    
    /* Filters and presets are a special case */
    xs_filter_load_into(cfg, 0, &xs_cfg.sid2Filter);
    
    if (xs_cfg.sid2NFilterPresets > 0)
    {
        xs_cfg.sid2FilterPresets = g_malloc0(xs_cfg.sid2NFilterPresets * sizeof(xs_sid_filter_t *));
        if (!xs_cfg.sid2FilterPresets)
        {
            xs_error("Allocation of sid2FilterPresets structure failed!\n");
            configOK = FALSE;
        }
        else
        {
            for (i = 0; i < xs_cfg.sid2NFilterPresets; i++)
                xs_cfg.sid2FilterPresets[i] = xs_filter_load(cfg, i);
        }
    }

    // Do a final check
    if (!xs_check_configuration(TRUE))
        configOK = FALSE;

error:
    if (cfg != NULL)
    {
        XS_CONFIG_FREE(cfg);
    }
    XS_MUTEX_UNLOCK(xs_cfg);
    XSDEBUG("%s\n", configOK ? "OK" : "ERRORS!");
    return configOK;
}


/* Write the current configuration
 */
gint xs_write_configuration(void)
{
    XS_CONFIG_FILE *cfg;
    gint i;

    XSDEBUG("writing configuration ...\n");
    XS_MUTEX_LOCK(xs_cfg);

    /* Try to open the XMMS configuration file  */
    cfg = XS_CONFIG_OPEN();

#ifndef AUDACIOUS_PLUGIN
    if (!cfg) cfg = xmms_cfg_new();
    if (!cfg) return -1;
#endif

    /* Write the new settings to XMMS configuration file */
    for (i = 0; i < xs_ncfgtable; i++)
    switch (xs_cfgtable[i].itemType)
    {
        case CTYPE_INT:
            XS_CFG_SET_INT(xs_cfgtable[i].itemName,
                *(gint *) xs_cfgtable[i].itemData);
            break;

        case CTYPE_BOOL:
            XS_CFG_SET_BOOL(xs_cfgtable[i].itemName,
                *(gboolean *) xs_cfgtable[i].itemData);
            break;

        case CTYPE_FLOAT:
            XS_CFG_SET_FLOAT(xs_cfgtable[i].itemName,
                *(gfloat *) xs_cfgtable[i].itemData);
            break;

        case CTYPE_STR:
            XS_CFG_SET_STRING(xs_cfgtable[i].itemName,
                *(gchar **) xs_cfgtable[i].itemData);
            break;
    }


#ifndef AUDACIOUS_PLUGIN
    xmms_cfg_write_default_file(cfg);
#endif
    XS_CONFIG_FREE(cfg);

    XS_MUTEX_UNLOCK(xs_cfg);

    return 0;
}


/* Configuration panel was canceled
 */
XS_DEF_WINDOW_CLOSE(cfg_cancel, configwin)


/* Configuration was accepted, save the settings
 */
void xs_cfg_ok(void)
{
    gint i;
    gfloat tmpValue;
    gint tmpInt;
    const gchar *tmpStr;

    /* Get lock on configuration */
    XS_MUTEX_LOCK(xs_cfg);

    XSDEBUG("get data from widgets to config...\n");

    for (i = 0; i < xs_nwidtable; i++)
    switch (xs_cfgitems[i].widType)
    {
        case WTYPE_BGROUP:
            /* Check if toggle-button is active */
            if (GTK_TOGGLE_BUTTON(LUW(xs_cfgitems[i].widName))->active)
            {
                /* Yes, set the constant value */
                *((gint *) xs_cfgitems[i].itemData) = xs_cfgitems[i].itemSet;
            }
            break;

        case WTYPE_COMBO:
            /* Get text from text-widget */
            tmpStr = gtk_entry_get_text(GTK_ENTRY(LUW(xs_cfgitems[i].widName)));
            if (sscanf(tmpStr, "%d", &tmpInt) != 1)
                tmpInt = xs_cfgitems[i].itemSet;

            *((gint *) xs_cfgitems[i].itemData) = tmpInt;
            break;
            
        case WTYPE_SPIN:
        case WTYPE_SCALE:
            /* Get the value */
            switch (xs_cfgitems[i].widType)
            {
                case WTYPE_SPIN:
                    tmpValue = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(LUW(xs_cfgitems[i].widName)))->value;
                    break;

                case WTYPE_SCALE:
                    tmpValue = gtk_range_get_adjustment(GTK_RANGE(LUW(xs_cfgitems[i].widName)))->value;
                    break;
                
                default:
                    tmpValue = -1;
                    break;
            }

            /* Set the value */
            switch (xs_cfgitems[i].itemType)
            {
                case CTYPE_INT:
                    *((gint *) xs_cfgitems[i].itemData) = (gint) tmpValue;
                    break;

                case CTYPE_FLOAT:
                    *((gfloat *) xs_cfgitems[i].itemData) = tmpValue;
                    break;
            }
            break;

        case WTYPE_BUTTON:
            /* Check if toggle-button is active */
            *((gboolean *) xs_cfgitems[i].itemData) =
                (GTK_TOGGLE_BUTTON(LUW(xs_cfgitems[i].widName))->active);
            break;

        case WTYPE_TEXT:
            /* Get text from text-widget */
            xs_pstrcpy((gchar **) xs_cfgitems[i].itemData,
                gtk_entry_get_text(GTK_ENTRY(LUW(xs_cfgitems[i].widName))));
            break;
    }
    
    // Check the settings
    if (!xs_check_configuration(FALSE))
        goto error;

    /* Get filter settings */
    /*
    if (!xs_curve_get_points(XS_CURVE(LUW("")), &xs_cfg.sid2Filter.points, &xs_cfg.sid2Filter.npoints)) {
        xs_error("Warning: Could not get filter curve widget points!\n");
    }
    */

    /* Release lock */
    XS_MUTEX_UNLOCK(xs_cfg);
    
    /* Close window */
    gtk_widget_destroy(xs_configwin);
    xs_configwin = NULL;

    /* Write settings */
    xs_write_configuration();

    /* Re-initialize */
    xs_reinit();
    return;

error:
    /* Release lock */
    XS_MUTEX_UNLOCK(xs_cfg);
}


void xs_messagebox_ok(GtkButton *button, gpointer user_data)
{
    (void) button;
    gtk_widget_destroy(GTK_WIDGET(user_data));
}


void xs_messagebox_const(const gchar *title, const gchar *msg)
{
    GtkWidget *wid, *win = create_xs_messagebox();
    gchar *ntitle;

    if (win == NULL)
        return;

    gtk_signal_connect(
        GTK_OBJECT(lookup_widget(win, "xs_messagebox_ok")),
        "clicked", GTK_SIGNAL_FUNC(xs_messagebox_ok), win);

    ntitle = g_strdup_printf("%s %s", PACKAGE_NAME, title != NULL ? title : "message");
    if (ntitle != NULL)
    {
        gtk_window_set_title(GTK_WINDOW(win), ntitle);

        if ((wid = lookup_widget(win, "xs_messagebox_frame")) != NULL)
            gtk_frame_set_label(GTK_FRAME(wid), ntitle);

        g_free(ntitle);
    }

    if ((wid = lookup_widget(win, "xs_messagebox_msg")) != NULL)
    {
        gtk_label_set_text(GTK_LABEL(wid), msg);
    }

    gtk_widget_show(win);
}


void xs_messagebox(const gchar *title, const gchar *fmt, ...)
{
    va_list ap;
    gchar *msg;

    va_start(ap, fmt);
    msg = g_strdup_vprintf(fmt, ap);
    va_end(ap);

    xs_messagebox_const(title, msg);
    g_free(msg);
}

/* Confirmation window
 */
gboolean xs_confirmwin_delete(GtkWidget *widget, GdkEvent *event, gpointer user_data)
{
    (void) widget;
    (void) event;
    (void) user_data;
    
    return FALSE;
}



/* HVSC songlength-database file selector response-functions
 */
void xs_cfg_sldb_browse(GtkButton * button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_sldb_fileselector != NULL)
    {
        XS_WINDOW_PRESENT(xs_sldb_fileselector);
        return;
    }

    xs_sldb_fileselector = create_xs_sldb_fs();
    XS_MUTEX_LOCK(xs_cfg);
    gtk_file_selection_set_filename(GTK_FILE_SELECTION(xs_sldb_fileselector), xs_cfg.songlenDBPath);
    XS_MUTEX_UNLOCK(xs_cfg);
    gtk_widget_show(xs_sldb_fileselector);
}


void xs_sldb_fs_ok(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;
    
    /* Selection was accepted! */
    gtk_entry_set_text(GTK_ENTRY(LUW("cfg_sld_dbpath")),
        gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_sldb_fileselector)));

    /* Close file selector window */
    gtk_widget_destroy(xs_sldb_fileselector);
    xs_sldb_fileselector = NULL;
}

XS_DEF_WINDOW_CLOSE(sldb_fs_cancel, sldb_fileselector)
XS_DEF_WINDOW_DELETE(sldb_fs, sldb_fileselector)


/* STIL-database file selector response-functions
 */
void xs_cfg_stil_browse(GtkButton * button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_stil_fileselector != NULL)
    {
        XS_WINDOW_PRESENT(xs_stil_fileselector);
        return;
    }

    xs_stil_fileselector = create_xs_stil_fs();
    XS_MUTEX_LOCK(xs_cfg);
    gtk_file_selection_set_filename(GTK_FILE_SELECTION(xs_stil_fileselector),
        gtk_entry_get_text(GTK_ENTRY(LUW("cfg_stil_dbpath"))));
    XS_MUTEX_UNLOCK(xs_cfg);
    gtk_widget_show(xs_stil_fileselector);
}


void xs_stil_fs_ok(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    /* Selection was accepted! */
    gtk_entry_set_text(GTK_ENTRY(LUW("cfg_stil_dbpath")),
        gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_stil_fileselector)));

    /* Close file selector window */
    gtk_widget_destroy(xs_stil_fileselector);
    xs_stil_fileselector = NULL;
}


XS_DEF_WINDOW_CLOSE(stil_fs_cancel, stil_fileselector)
XS_DEF_WINDOW_DELETE(stil_fs, stil_fileselector)


/* HVSC location selector response-functions
 */
void xs_cfg_hvsc_browse(GtkButton * button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_hvsc_selector != NULL)
    {
        XS_WINDOW_PRESENT(xs_hvsc_selector);
        return;
    }

    xs_hvsc_selector = create_xs_hvsc_fs();
    XS_MUTEX_LOCK(xs_cfg);
    gtk_file_selection_set_filename(GTK_FILE_SELECTION(xs_hvsc_selector),
        gtk_entry_get_text(GTK_ENTRY(LUW("cfg_hvsc_path"))));
    XS_MUTEX_UNLOCK(xs_cfg);
    gtk_widget_show(xs_hvsc_selector);
}


void xs_hvsc_fs_ok(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;
    gchar *path, *result = gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_hvsc_selector));
    if (!xs_is_dir_path(result))
    {
        path = xs_get_dir_path(result);
        xs_messagebox(_("Warning"),
            _("Selected HVSC path '%s' does not seem like a path, adjusting to '%s'.\n"),
            result, path);
    }
    else
        path = result;

    gtk_entry_set_text(GTK_ENTRY(LUW("cfg_hvsc_path")), path);

    /* Close file selector window */
    gtk_widget_destroy(xs_hvsc_selector);
    xs_hvsc_selector = NULL;
}


XS_DEF_WINDOW_CLOSE(hvsc_fs_cancel, hvsc_selector)
XS_DEF_WINDOW_DELETE(hvsc_fs, hvsc_selector)


/* C64 ROM path selector response-functions
 */
void xs_cfg_rom_browse(GtkButton * button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_rom_selector != NULL)
    {
        XS_WINDOW_PRESENT(xs_rom_selector);
        return;
    }

    xs_rom_selector = create_xs_rom_fs();
    XS_MUTEX_LOCK(xs_cfg);
    gtk_file_selection_set_filename(GTK_FILE_SELECTION(xs_rom_selector),
        gtk_entry_get_text(GTK_ENTRY(LUW("cfg_emu_rom_path"))));
    XS_MUTEX_UNLOCK(xs_cfg);
    gtk_widget_show(xs_rom_selector);
}


void xs_rom_fs_ok(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;
    gchar *path, *result = gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_rom_selector));
    if (!xs_is_dir_path(result))
    {
        path = xs_get_dir_path(result);
        xs_messagebox(_("Warning"),
            _("Selected ROM path '%s' does not seem like a path, adjusting to '%s'.\n"),
            result, path);
    }
    else
        path = result;

    gtk_entry_set_text(GTK_ENTRY(LUW("cfg_emu_rom_path")), path);

    /* Close file selector window */
    gtk_widget_destroy(xs_rom_selector);
    xs_rom_selector = NULL;
}


XS_DEF_WINDOW_CLOSE(rom_fs_cancel, rom_selector)
XS_DEF_WINDOW_DELETE(rom_fs, rom_selector)


/* Filter handling
 */
void xs_cfg_sp1_filter_reset(GtkButton * button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    gtk_adjustment_set_value(gtk_range_get_adjustment(GTK_RANGE(LUW("cfg_sp1_filter_fs"))), XS_SIDPLAY1_FS);
    gtk_adjustment_set_value(gtk_range_get_adjustment(GTK_RANGE(LUW("cfg_sp1_filter_fm"))), XS_SIDPLAY1_FM);
    gtk_adjustment_set_value(gtk_range_get_adjustment(GTK_RANGE(LUW("cfg_sp1_filter_ft"))), XS_SIDPLAY1_FT);
}


void xs_cfg_sp2_filter_update(XSCurve *curve, xs_sid_filter_t *f)
{
    assert(curve);
    assert(f);
    
    xs_curve_reset(curve);
    xs_curve_set_range(curve, 0,0, XS_SIDPLAY2_NFPOINTS, XS_SIDPLAY2_FMAX);
    if (!xs_curve_set_points(curve, f->points, f->npoints))
    {
        // FIXME
        xs_error("Warning: Could not set filter curve widget points!\n");
    }
}


void xs_cfg_sp2_presets_update(void)
{
    GList *tmpList = NULL;
    gint i;
    
    for (i = 0; i < xs_cfg.sid2NFilterPresets; i++)
    {
        tmpList = g_list_append(tmpList,
            (gpointer) xs_cfg.sid2FilterPresets[i]->name);
    }
    
    if (tmpList != NULL)
        gtk_combo_set_popdown_strings(GTK_COMBO(LUW("cfg_sp2_filter_combo")), tmpList);

    g_list_free(tmpList);
}


void xs_cfg_sp2_filter_load(GtkButton *button, gpointer user_data)
{
    const gchar *tmpStr;
    gint i, j;
    
    (void) button;
    (void) user_data;
    
    XS_MUTEX_LOCK(xs_cfg);
    
    tmpStr = gtk_entry_get_text(GTK_ENTRY(LUW("cfg_sp2_filter_combo_entry")));
    for (i = 0, j = -1; i < xs_cfg.sid2NFilterPresets; i++)
    {
        if (!strcmp(tmpStr, xs_cfg.sid2FilterPresets[i]->name))
        {
            j = i;
            break;
        }
    }
    
    if (j != -1)
    {
        fprintf(stderr, "Updating from '%s'\n", tmpStr);
        xs_cfg_sp2_filter_update(
            XS_CURVE(LUW("cfg_sp2_filter_curve")),
            xs_cfg.sid2FilterPresets[i]);
    }
    else
    {
        /* error/warning: no such filter preset */
        fprintf(stderr, "No such filter preset '%s'!\n", tmpStr);
    }
    
    XS_MUTEX_UNLOCK(xs_cfg);
}


void xs_cfg_sp2_filter_save(GtkButton *button, gpointer user_data)
{
    /*
    1) check if textentry matches any current filter name
        yes) ask if saving over ok?
        no) ...
        
    2) save current filter to the name        
    */
    const gchar *tmpStr;
    gint i, j;
    
    (void) button;
    (void) user_data;
    
    XS_MUTEX_LOCK(xs_cfg);
    
    tmpStr = gtk_entry_get_text(GTK_ENTRY(LUW("cfg_sp2_filter_combo_entry")));
    for (i = 0, j = -1; i < xs_cfg.sid2NFilterPresets; i++)
    {
        if (!strcmp(tmpStr, xs_cfg.sid2FilterPresets[i]->name))
        {
            j = i;
            break;
        }
    }
    
    if (j != -1)
    {
        fprintf(stderr, "Found, confirm overwrite?\n");
    }
    
    fprintf(stderr, "saving!\n");
    
    xs_cfg_sp2_presets_update();
    
    XS_MUTEX_UNLOCK(xs_cfg);
}


void xs_cfg_sp2_filter_delete(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;
    /*
    1) confirm
    2) delete
    */
}


void xs_cfg_sp2_filter_import(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_filt_importselector != NULL)
    {
        XS_WINDOW_PRESENT(xs_filt_importselector);
        return;
    }

    xs_filt_importselector = create_xs_filter_import_fs();
    gtk_widget_show(xs_filt_importselector);
}


void xs_filter_import_fs_ok(GtkButton *button, gpointer user_data)
{
    const gchar *tmpStr;
    (void) button;
    (void) user_data;
    
    XS_MUTEX_LOCK(xs_cfg);

    /* Selection was accepted! */
    tmpStr = gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_filt_importselector));
    xs_filters_import(tmpStr, xs_cfg.sid2FilterPresets, &xs_cfg.sid2NFilterPresets);
    xs_cfg_sp2_presets_update();

    /* Close file selector window */
    gtk_widget_destroy(xs_filt_importselector);
    xs_filt_importselector = NULL;
    XS_MUTEX_UNLOCK(xs_cfg);
}


XS_DEF_WINDOW_CLOSE(filter_import_fs_cancel, filt_importselector)
XS_DEF_WINDOW_DELETE(filter_import_fs, filt_importselector)


void xs_cfg_sp2_filter_export(GtkButton *button, gpointer user_data)
{
    (void) button;
    (void) user_data;

    if (xs_filt_exportselector != NULL)
    {
        XS_WINDOW_PRESENT(xs_filt_exportselector);
        return;
    }

    xs_filt_exportselector = create_xs_filter_export_fs();
    gtk_widget_show(xs_filt_exportselector);
}


void xs_filter_export_fs_ok(GtkButton *button, gpointer user_data)
{
    const gchar *tmpStr;
    (void) button;
    (void) user_data;

    XS_MUTEX_LOCK(xs_cfg);

    /* Selection was accepted! */
    tmpStr = gtk_file_selection_get_filename(GTK_FILE_SELECTION(xs_filt_exportselector));
    xs_filters_export(tmpStr, xs_cfg.sid2FilterPresets, xs_cfg.sid2NFilterPresets);

    /* Close file selector window */
    gtk_widget_destroy(xs_filt_exportselector);
    xs_filt_exportselector = NULL;
    XS_MUTEX_UNLOCK(xs_cfg);
}


XS_DEF_WINDOW_CLOSE(filter_export_fs_cancel, filt_exportselector)
XS_DEF_WINDOW_DELETE(filter_export_fs, filt_exportselector)


/* Selection toggle handlers
 */
void xs_cfg_emu_filters_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_filters_notebook"), isActive);
}


void xs_cfg_ftitle_override_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_ftitle_box"), isActive);
}


void xs_cfg_emu_sidplay1_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    (void) togglebutton;
    (void) user_data;
}


void xs_cfg_emu_sidplay2_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isSP2Active = GTK_TOGGLE_BUTTON(LUW("cfg_emu_sidplay2"))->active,
             isFPActive = GTK_TOGGLE_BUTTON(LUW("cfg_emu_sidplayfp"))->active,
             isEither = isSP2Active || isFPActive;

    (void) togglebutton;
    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_memmode_frame"), !isFPActive);
    gtk_widget_set_sensitive(LUW("cfg_emu_mem_real"), isSP2Active);

    gtk_widget_set_sensitive(LUW("cfg_sidplay2_frame"), isEither);

    /* Optimization mode removed from distortion patch */
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_opt"), isSP2Active);

    gtk_widget_set_sensitive(LUW("cfg_chn_autopan"), !isEither);

#if defined(HAVE_SIDPLAYFP) && defined(HAVE_RESID_FP_BUILDER)
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_resid_fp"), isFPActive);
#else
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_resid_fp"), FALSE);
#endif

#ifdef HAVE_RESID_BUILDER
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_resid"), isEither);
    gtk_widget_set_sensitive(LUW("cfg_resid_frame"), isFPActive);
#else
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_resid"), FALSE);
    gtk_widget_set_sensitive(LUW("cfg_resid_frame"), FALSE);
#endif

#ifdef HAVE_HARDSID_BUILDER
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_hardsid"), isEither);
#else
    gtk_widget_set_sensitive(LUW("cfg_emu_sp2_hardsid"), FALSE);
#endif

}


void xs_cfg_mintime_enable_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_mintime_box"), isActive);
}


void xs_cfg_maxtime_enable_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(LUW("cfg_maxtime_enable"))->active;

    (void) togglebutton;
    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_maxtime_unknown"), isActive);
    gtk_widget_set_sensitive(LUW("cfg_maxtime_box"), isActive);
}


void xs_cfg_sldb_enable_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_sld_box"), isActive);
}


void xs_cfg_stil_enable_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_stil_box1"), isActive);
    gtk_widget_set_sensitive(LUW("cfg_stil_box2"), isActive);
}


void xs_cfg_subauto_enable_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_subauto_min_only"), isActive);
    gtk_widget_set_sensitive(LUW("cfg_subauto_box"), isActive);
}


void xs_cfg_subauto_min_only_toggled(GtkToggleButton * togglebutton, gpointer user_data)
{
    gboolean isActive = GTK_TOGGLE_BUTTON(togglebutton)->active &&
        GTK_TOGGLE_BUTTON(LUW("cfg_subauto_enable"))->active;

    (void) user_data;

    gtk_widget_set_sensitive(LUW("cfg_subauto_box"), isActive);
}


void xs_cfg_mintime_changed(GtkEditable * editable, gpointer user_data)
{
    gint tmpValue;
    GtkAdjustment *tmpAdj;

    (void) user_data;

    tmpAdj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(LUW("cfg_maxtime")));

    tmpValue = (gint) gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(editable))->value;

    if (tmpValue > tmpAdj->value)
        gtk_adjustment_set_value(tmpAdj, tmpValue);
}


void xs_cfg_maxtime_changed(GtkEditable * editable, gpointer user_data)
{
    gint tmpValue;
    GtkAdjustment *tmpAdj;

    (void) user_data;

    tmpAdj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(LUW("cfg_mintime")));

    tmpValue = (gint) gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(editable))->value;

    if (tmpValue < tmpAdj->value)
        gtk_adjustment_set_value(tmpAdj, tmpValue);
}


XS_DEF_WINDOW_DELETE(configwin, configwin)


/* Execute the configuration panel
 */
void xs_configure(void)
{
    gint i;
    gfloat tmpValue;
    gchar tmpStr[64];
    GList *tmpList = NULL;
    GtkWidget *tmpCurve;

    /* Check if the window already exists */
    if (xs_configwin)
    {
        XS_WINDOW_PRESENT(xs_configwin);
        return;
    }

    /* Create the window */
    xs_configwin = create_xs_configwin();
    
    /* Get lock on configuration */
    XS_MUTEX_LOCK(xs_cfg);

    /* Add samplerates */
    for (i = 0; i < xs_nsamplerates_table; i++)
    {
        tmpList = g_list_append (tmpList,
            (gpointer) xs_samplerates_table[i]);
    }
    gtk_combo_set_popdown_strings(GTK_COMBO(LUW("cfg_samplerate_combo")), tmpList);
    g_list_free(tmpList);
    
    /* Create the custom filter curve widget for libSIDPlay2 */
    xs_cfg_sp2_presets_update();
    tmpCurve = xs_curve_new();
    xs_cfg_sp2_filter_update(XS_CURVE(tmpCurve), &xs_cfg.sid2Filter);
    gtk_widget_set_name(tmpCurve, "cfg_sp2_filter_curve");
    gtk_widget_ref(tmpCurve);
    gtk_object_set_data_full(GTK_OBJECT(xs_configwin),
        "cfg_sp2_filter_curve", tmpCurve, (GtkDestroyNotify) gtk_widget_unref);
    gtk_widget_show(tmpCurve);
    gtk_container_add(GTK_CONTAINER(LUW("cfg_sp2_filter_frame")), tmpCurve);


    /* Based on available optional parts, gray out options */
#ifndef HAVE_SIDPLAY1
    gtk_widget_set_sensitive(LUW("cfg_emu_sidplay1"), FALSE);
    gtk_widget_set_sensitive(LUW("cfg_box_filter_sidplay1"), FALSE);
#endif

#ifndef HAVE_SIDPLAY2
    gtk_widget_set_sensitive(LUW("cfg_emu_sidplay2"), FALSE);
#endif
#ifndef HAVE_SIDPLAYFP
    gtk_widget_set_sensitive(LUW("cfg_emu_sidplayfp"), FALSE);
#endif

#if !defined(HAVE_SIDPLAY2) && !defined(HAVE_SIDPLAYFP)
    gtk_widget_set_sensitive(LUW("cfg_box_filter_sidplay2"), FALSE);
#endif


#if !defined(HAVE_SONG_POSITION) && !defined(AUDACIOUS_PLUGIN)
    gtk_widget_set_sensitive(LUW("cfg_subctrl_patch"), FALSE);
#endif

    xs_cfg_ftitle_override_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_ftitle_override")), NULL);
    xs_cfg_emu_filters_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_emu_filters")), NULL);
    xs_cfg_emu_sidplay1_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_emu_sidplay1")), NULL);
    xs_cfg_emu_sidplay2_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_emu_sidplay2")), NULL);
    xs_cfg_mintime_enable_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_mintime_enable")), NULL);
    xs_cfg_maxtime_enable_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_maxtime_enable")), NULL);
    xs_cfg_sldb_enable_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_sld_enable")), NULL);
    xs_cfg_stil_enable_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_stil_enable")), NULL);
    xs_cfg_subauto_enable_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_subauto_enable")), NULL);
    xs_cfg_subauto_min_only_toggled(GTK_TOGGLE_BUTTON(LUW("cfg_subauto_min_only")), NULL);


    /* Set current data to widgets */
    for (i = 0; i < xs_nwidtable; i++)
    {
        switch (xs_cfgitems[i].widType)
        {
        case WTYPE_BGROUP:
            assert(xs_cfgitems[i].itemType == CTYPE_INT);
            /* Check if current value matches the given one */
            gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(LUW(xs_cfgitems[i].widName)),
                (*((gint *) xs_cfgitems[i].itemData) == xs_cfgitems[i].itemSet));
            break;

        case WTYPE_COMBO:
            assert(xs_cfgitems[i].itemType == CTYPE_INT);
            g_snprintf(tmpStr, sizeof(tmpStr), "%d", *(gint *) xs_cfgitems[i].itemData);
            gtk_entry_set_text(GTK_ENTRY(LUW(xs_cfgitems[i].widName)), tmpStr);
            break;
            
        case WTYPE_SPIN:
        case WTYPE_SCALE:
            /* Get the value */
            switch (xs_cfgitems[i].itemType)
            {
                case CTYPE_INT:
                    tmpValue = (gfloat) * ((gint *) xs_cfgitems[i].itemData);
                    break;

                case CTYPE_FLOAT:
                    tmpValue = *((gfloat *) xs_cfgitems[i].itemData);
                    break;

                default:
                    tmpValue = -1;
                    assert(0);
                    break;
            }

            /* Set the value */
            switch (xs_cfgitems[i].widType)
            {
                case WTYPE_SPIN:
                    gtk_adjustment_set_value(gtk_spin_button_get_adjustment
                        (GTK_SPIN_BUTTON(LUW(xs_cfgitems[i].widName))), tmpValue);
                    break;

                case WTYPE_SCALE:
                    gtk_adjustment_set_value(gtk_range_get_adjustment
                        (GTK_RANGE(LUW(xs_cfgitems[i].widName))), tmpValue);
                    break;
            }
            break;

        case WTYPE_BUTTON:
            assert(xs_cfgitems[i].itemType == CTYPE_BOOL);
            /* Set toggle-button */
            gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(LUW(xs_cfgitems[i].widName)),
                *((gboolean *) xs_cfgitems[i].itemData));
            break;

        case WTYPE_TEXT:
            assert(xs_cfgitems[i].itemType == CTYPE_STR);
            /* Set text to text-widget */
            if (*(gchar **) xs_cfgitems[i].itemData != NULL)
            {
                gtk_entry_set_text(GTK_ENTRY(LUW(xs_cfgitems[i].widName)),
                *(gchar **) xs_cfgitems[i].itemData);
            }
            break;
        }
    }

    /* Release the configuration */
    XS_MUTEX_UNLOCK(xs_cfg);

    /* Show the widget */
    gtk_widget_show(xs_configwin);
}