os2.c
changeset 801 bfa47ec110b0
parent 782 3c1414ad5fbc
child 810 7c51ba5a4368
--- a/os2.c	Thu Dec 23 23:53:13 2004 +0000
+++ b/os2.c	Fri Dec 24 00:00:10 2004 +0000
@@ -1,531 +1,531 @@
-#include "stdafx.h"
-#include "ttd.h"
-#include "table/strings.h"
-#include "hal.h"
-
-#include <direct.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <time.h>
-#include <dos.h>
-
-#include <os2.h>
-
-#if defined(WITH_SDL)
-#include <SDL.h>
-#endif
-
-static char *_fios_path;
-static char *_fios_save_path;
-static char *_fios_scn_path;
-static FiosItem *_fios_items;
-static int _fios_count, _fios_alloc;
-
-static FiosItem *FiosAlloc()
-{
-	if (_fios_count == _fios_alloc) {
-		_fios_alloc += 256;
-		_fios_items = realloc(_fios_items, _fios_alloc * sizeof(FiosItem));
-	}
-	return &_fios_items[_fios_count++];
-}
-
-int compare_FiosItems (const void *a, const void *b) {
-	const FiosItem *da = (const FiosItem *) a;
-	const FiosItem *db = (const FiosItem *) b;
-	int r;
-
-	if (_savegame_sort_order < 2) // sort by date
-	r = da->mtime < db->mtime ? -1 : 1;
-	else
-		r = stricmp(da->title[0] ? da->title : da->name, db->title[0] ? db->title : db->name);
-
-	if (_savegame_sort_order & 1) r = -r;
-	return r;
-}
-
-
-// Get a list of savegames
-FiosItem *FiosGetSavegameList(int *num, int mode)
-{
-	FiosItem *fios;
-	DIR *dir;
-	struct dirent *dirent;
-	struct stat sb;
-	int sort_start;
-	char filename[MAX_PATH];
-
-	if (_fios_save_path == NULL) {
-		_fios_save_path = malloc(MAX_PATH);
-		strcpy(_fios_save_path, _path.save_dir);
-	}
-
-	if(_game_mode==GM_EDITOR)
-		_fios_path = _fios_scn_path;
-	else
-		_fios_path = _fios_save_path;
-
-	// Parent directory, only if not in root already.
-	if (_fios_path[1] != 0) {
-		fios = FiosAlloc();
-		fios->type = FIOS_TYPE_PARENT;
-		fios->mtime = 0;
-		sprintf(fios->title, ".. (Parent directory)");
-	}
-
-	// Show subdirectories first
-	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
-	if (dir != NULL) {
-		while ((dirent = readdir(dir))) {
-			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
-			if (!stat(filename, &sb)) {
-				if (S_ISDIR(sb.st_mode)) {
-					if (dirent->d_name[0] != '.') {
-						fios = FiosAlloc();
-						fios->mtime = 0;
-						fios->type = FIOS_TYPE_DIR;
-						fios->title[0] = 0;
-						sprintf(fios->name, "%s\\ (Directory)", dirent->d_name);
-					}
-				}
-			}
-		}
-		closedir(dir);
-	}
-
-	{
-		/* XXX ugly global variables ... */
-		byte order = _savegame_sort_order;
-		_savegame_sort_order = 2; // sort ascending by name
-		qsort(_fios_items, _fios_count, sizeof(FiosItem), compare_FiosItems);
-		_savegame_sort_order = order;
-	}
-
-	// this is where to start sorting
-	sort_start = _fios_count;
-
-	/*      Show savegame files
-	 *      .SAV    OpenTTD saved game
-	 *      .SS1    Transport Tycoon Deluxe preset game
-	 *      .SV1    Transport Tycoon Deluxe (Patch) saved game
-	 *      .SV2    Transport Tycoon Deluxe (Patch) saved 2-player game
-	 */
-	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
-	if (dir != NULL) {
-		while ((dirent = readdir(dir))) {
-			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
-			if (!stat(filename, &sb)) {
-				if (!S_ISDIR(sb.st_mode)) {
-					char *t = strrchr(dirent->d_name, '.');
-					if (t && !stricmp(t, ".sav")) { // OpenTTD
-						*t = 0; // cut extension
-						fios = FiosAlloc();
-						fios->type = FIOS_TYPE_FILE;
-						fios->mtime = sb.st_mtime;
-						fios->title[0] = 0;
-						ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name));
-					} else if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO) {
-						int ext = 0; // start of savegame extensions in _old_extensions[]
-						if (t && ((ext++, !stricmp(t, ".ss1")) || (ext++, !stricmp(t, ".sv1")) || (ext++, !stricmp(t, ".sv2"))) ) { // TTDLX(Patch)
-							*t = 0; // cut extension
-							fios = FiosAlloc();
-							fios->old_extension = ext-1;
-							fios->type = FIOS_TYPE_OLDFILE;
-							fios->mtime = sb.st_mtime;
-							ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name));
-							GetOldSaveGameName(fios->title, filename);
-						}
-					}
-				}
-			}
-		}
-		closedir(dir);
-	}
-
-	qsort(_fios_items + sort_start, _fios_count - sort_start, sizeof(FiosItem), compare_FiosItems);
-
-	// Drives
-	{
-		unsigned save, disk, disk2, total;
-
-		/* save original drive */
-		_dos_getdrive(&save);
-
-		/* get available drive letters */
-
-		for (disk = 1; disk < 27; ++disk)
-		{
-			_dos_setdrive(disk, &total);
-			_dos_getdrive(&disk2);
-			
-			if (disk == disk2)
-			{
-				fios = FiosAlloc();
-				fios->type = FIOS_TYPE_DRIVE;
-				fios->title[0] = disk + 'A'-1;
-				fios->title[1] = ':';
-				fios->title[2] = 0;
-			}
-		}
-
-		_dos_setdrive(save, &total);
-	}
-
-	*num = _fios_count;
-	return _fios_items;
-}
-
-// Get a list of scenarios
-FiosItem *FiosGetScenarioList(int *num, int mode)
-{
-	FiosItem *fios;
-	DIR *dir;
-	struct dirent *dirent;
-	struct stat sb;
-	int sort_start;
-	char filename[MAX_PATH];
-
-	if (_fios_scn_path == NULL) {
-		_fios_scn_path = malloc(MAX_PATH);
-		strcpy(_fios_scn_path, _path.scenario_dir);
-	}
-	_fios_path = _fios_scn_path;
-
-	// Show subdirectories first
-	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
-	if (dir != NULL) {
-		while ((dirent = readdir(dir))) {
-			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
-			if (!stat(filename, &sb)) {
-				if (S_ISDIR(sb.st_mode)) {
-					if (dirent->d_name[0] != '.') {
-						fios = FiosAlloc();
-						fios->mtime = 0;
-						fios->type = FIOS_TYPE_DIR;
-						fios->title[0] = 0;
-						sprintf(fios->name, "%s\\ (Directory)", dirent->d_name);
-					}
-				}
-			}
-		}
-		closedir(dir);
-	}
-
-	// this is where to start sorting
-	sort_start = _fios_count;
-
-	/*      Show scenario files
-	 *      .SCN    OpenTTD style scenario file
-	 *      .SV0    Transport Tycoon Deluxe (Patch) scenario
-	 *      .SS0    Transport Tycoon Deluxe preset scenario
-	 */
-	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
-	if (dir != NULL) {
-		while ((dirent = readdir(dir))) {
-			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
-			if (!stat(filename, &sb)) {
-				if (!S_ISDIR(sb.st_mode)) {
-					char *t = strrchr(dirent->d_name, '.');
-					if (t && !stricmp(t, ".scn")) { // OpenTTD
-						*t = 0; // cut extension
-						fios = FiosAlloc();
-						fios->type = FIOS_TYPE_SCENARIO;
-						fios->mtime = sb.st_mtime;
-						fios->title[0] = 0;
-						ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name)-3);
-					} else if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO || mode == SLD_NEW_GAME) {
-						int ext = 3; // start of scenario extensions in _old_extensions[]
-						if (t && ((ext++, !stricmp(t, ".sv0")) || (ext++, !stricmp(t, ".ss0"))) ) { // TTDLX(Patch)
-							*t = 0; // cut extension
-							fios = FiosAlloc();
-							fios->old_extension = ext-1;
-							fios->type = FIOS_TYPE_OLD_SCENARIO;
-							fios->mtime = sb.st_mtime;
-							GetOldScenarioGameName(fios->title, filename);
-							ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name)-3);
-						}
-					}
-				}
-			}
-		}
-		closedir(dir);
-	}
-
-	qsort(_fios_items + sort_start, _fios_count - sort_start, sizeof(FiosItem), compare_FiosItems);
-
-	// Drives
-	if (mode != SLD_NEW_GAME)
-	{
-		unsigned save, disk, disk2, total;
-
-		/* save original drive */
-		_dos_getdrive(&save);
-
-		/* get available drive letters */
-
-		for (disk = 1; disk < 27; ++disk)
-		{
-			_dos_setdrive(disk, &total);
-			_dos_getdrive(&disk2);
-			
-			if (disk == disk2)
-			{
-				fios = FiosAlloc();
-				fios->type = FIOS_TYPE_DRIVE;
-				fios->title[0] = disk + 'A'-1;
-				fios->title[1] = ':';
-				fios->title[2] = 0;
-			}
-		}
-
-		_dos_setdrive(save, &total);
-	}
-
-	*num = _fios_count;
-	return _fios_items;
-}
-
-
-// Free the list of savegames
-void FiosFreeSavegameList()
-{
-	free(_fios_items);
-	_fios_items = NULL;
-	_fios_alloc = _fios_count = 0;
-}
-
-// Browse to
-char *FiosBrowseTo(const FiosItem *item)
-{
-	char *path = _fios_path;
-	char *s;
-
-	switch(item->type) {
-	case FIOS_TYPE_PARENT:
-		s = strrchr(path, '\\');
-		if (s != NULL) *s = 0;
-		break;
-
-	case FIOS_TYPE_DIR:
-		s = strchr((char*)item->name, '\\');
-		if (s) *s = 0;
-		while (*path) path++;
-		*path++ = '\\';
-		strcpy(path, item->name);
-		break;
-
-	case FIOS_TYPE_FILE:
-		FiosMakeSavegameName(str_buffr, item->name);
-		return str_buffr;
-
-	case FIOS_TYPE_OLDFILE:
-		sprintf(str_buffr, "%s\\%s.%s", _fios_path, item->name, _old_extensions[item->old_extension]);
-		return str_buffr;
-
-	case FIOS_TYPE_SCENARIO:
-		sprintf(str_buffr, "%s\\%s.scn", path, item->name);
-		return str_buffr;
-
-	case FIOS_TYPE_OLD_SCENARIO:
-		sprintf(str_buffr, "%s\\%s.%s", path, item->name, _old_extensions[item->old_extension]);
-		return str_buffr;
-	}
-
-	return NULL;
-}
-
-// Get descriptive texts.
-// Returns a path as well as a
-//  string describing the path.
-StringID FiosGetDescText(const char **path)
-{
-	struct diskfree_t free;
-	char drive;
-	
-	*path = _fios_path[0] ? _fios_path : "C:\\";
-	drive = 'B' - *path[0];
-
-	_getdiskfree(drive, &free);
-		
-	SetDParam(0, free.avail_clusters * free.sectors_per_cluster * free.bytes_per_sector);
-	return STR_4005_BYTES_FREE;
-}
-
-void FiosMakeSavegameName(char *buf, const char *name)
-{
-	if(_game_mode==GM_EDITOR)
-		sprintf(buf, "%s\\%s.scn", _fios_path, name);
-	else
-		sprintf(buf, "%s\\%s.sav", _fios_path, name);
-}
-
-void FiosDelete(const char *name)
-{
-	char *path = str_buffr;
-	FiosMakeSavegameName(path, name);
-	unlink(path);
-}
-
-const DriverDesc _video_driver_descs[] = {
-	{"null",	"Null Video Driver",    &_null_video_driver,    0},
-#if defined(WITH_SDL)
-	{ "sdl",	"SDL Video Driver",	     &_sdl_video_driver,	     1},
-#endif
-	{ "dedicated", "Dedicated Video Driver", &_dedicated_video_driver, 0},
-	{ NULL,	 NULL,								   NULL,								   0}
-};
-
-const DriverDesc _sound_driver_descs[] = {
-	{"null",	"Null Sound Driver",    &_null_sound_driver,	    0},
-#if defined(WITH_SDL)
-	{ "sdl",	"SDL Sound Driver",	     &_sdl_sound_driver,		     1},
-#endif
-	{ NULL,	 NULL,								   NULL,									   0}
-};
-
-const DriverDesc _music_driver_descs[] = {
-	{   "null",     "Null Music Driver",	    &_null_music_driver,	    0},
-	{     NULL,     NULL,									   NULL,									   0}
-};
-
-/* GetOSVersion returns the minimal required version of OS to be able to use that driver.
-	 Not needed for *nix. */
-byte GetOSVersion()
-{
-	return 2;  // any arbitrary number bigger then 0
-				// numbers lower than 2 breaks default music selection on mac
-}
-
-bool FileExists(const char *filename)
-{
-	return access(filename, 0) == 0;
-}
-
-static int LanguageCompareFunc(const void *a, const void *b)
-{
-	return strcmp(*(const char* const *)a, *(const char* const *)b);
-}
-
-int GetLanguageList(char **languages, int max)
-{
-	DIR *dir;
-	struct dirent *dirent;
-	int num = 0;
-
-	dir = opendir(_path.lang_dir);
-	if (dir != NULL) {
-		while ((dirent = readdir(dir))) {
-			char *t = strrchr(dirent->d_name, '.');
-			if (t && !strcmp(t, ".lng")) {
-				languages[num++] = strdup(dirent->d_name);
-				if (num == max) break;
-			}
-		}
-		closedir(dir);
-	}
-
-	qsort(languages, num, sizeof(char*), LanguageCompareFunc);
-	return num;
-}
-
-static void ChangeWorkingDirectory(char *exe)
-{
-	char *s = strrchr(exe, '\\');
-	if (s != NULL) {
-		*s = 0;
-		chdir(exe);
-		*s = '\\';
-	}
-}
-
-void ShowInfo(const char *str)
-{
-	puts(str);
-}
-
-void ShowOSErrorBox(const char *buf)
-{
-	WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, buf, "OpenTTD", 263, MB_OK | MB_APPLMODAL | MB_MOVEABLE | MB_ERROR);
-// TODO: FIX, doesn't always appear
-}
-
-int CDECL main(int argc, char* argv[])
-{
-	// change the working directory to enable doubleclicking in UIs
-	ChangeWorkingDirectory(argv[0]);
-
-	_random_seeds[0][1] = _random_seeds[0][0] = time(NULL);
-
-
-	return ttd_main(argc, argv);
-}
-
-void DeterminePaths()
-{
-	char *s;
-
-	_path.game_data_dir = malloc( MAX_PATH );
-	ttd_strlcpy(_path.game_data_dir, GAME_DATA_DIR, MAX_PATH);
-	#if defined SECOND_DATA_DIR
-	_path.second_data_dir = malloc( MAX_PATH );
-	ttd_strlcpy( _path.second_data_dir, SECOND_DATA_DIR, MAX_PATH);
-	#endif
-
-#if defined(USE_HOMEDIR)
-	{
-		char *homedir;
-		homedir = getenv("HOME");
-
-		if(!homedir) {
-			struct passwd *pw = getpwuid(getuid());
-			if (pw) homedir = pw->pw_dir;
-		}
-
-		_path.personal_dir = str_fmt("%s" PATHSEP "%s", homedir, PERSONAL_DIR);
-	}
-
-#else /* not defined(USE_HOMEDIR) */
-
-	_path.personal_dir = malloc( MAX_PATH );
-	ttd_strlcpy(_path.personal_dir, PERSONAL_DIR, MAX_PATH);
-
-	// check if absolute or relative path
-	s = strchr(_path.personal_dir, '\\');
-
-	// add absolute path
-	if (s==NULL || _path.personal_dir != s) {
-		getcwd(_path.personal_dir, MAX_PATH);
-		s = strchr(_path.personal_dir, 0);
-		*s++ = '\\';
-		ttd_strlcpy(s, PERSONAL_DIR, MAX_PATH);
-	}
-
-#endif /* defined(USE_HOMEDIR) */
-
-	s = strchr(_path.personal_dir, 0);
-
-	// append a / ?
-	if (s[-1] != '\\') { s[0] = '\\'; s[1] = 0; }
-
-	_path.save_dir = str_fmt("%ssave", _path.personal_dir);
-	_path.autosave_dir = str_fmt("%s\\autosave", _path.save_dir);
-	_path.scenario_dir = str_fmt("%sscenario", _path.personal_dir);
-	_path.gm_dir = str_fmt("%sgm\\", _path.game_data_dir);
-	_path.data_dir = str_fmt("%sdata\\", _path.game_data_dir);
-	_config_file = str_fmt("%sopenttd.cfg", _path.personal_dir);
-	
-#if defined CUSTOM_LANG_DIR
-	// sets the search path for lng files to the custom one
-	_path.lang_dir = malloc( MAX_PATH );
-	ttd_strlcpy( _path.lang_dir, CUSTOM_LANG_DIR, MAX_PATH);
-#else
-	_path.lang_dir = str_fmt("%slang\\", _path.game_data_dir);
-#endif
-
-	// create necessary folders
-	mkdir(_path.personal_dir);
-	mkdir(_path.save_dir);
-	mkdir(_path.autosave_dir);
-	mkdir(_path.scenario_dir);
-}
-
+#include "stdafx.h"
+#include "ttd.h"
+#include "table/strings.h"
+#include "hal.h"
+
+#include <direct.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <dos.h>
+
+#include <os2.h>
+
+#if defined(WITH_SDL)
+#include <SDL.h>
+#endif
+
+static char *_fios_path;
+static char *_fios_save_path;
+static char *_fios_scn_path;
+static FiosItem *_fios_items;
+static int _fios_count, _fios_alloc;
+
+static FiosItem *FiosAlloc()
+{
+	if (_fios_count == _fios_alloc) {
+		_fios_alloc += 256;
+		_fios_items = realloc(_fios_items, _fios_alloc * sizeof(FiosItem));
+	}
+	return &_fios_items[_fios_count++];
+}
+
+int compare_FiosItems (const void *a, const void *b) {
+	const FiosItem *da = (const FiosItem *) a;
+	const FiosItem *db = (const FiosItem *) b;
+	int r;
+
+	if (_savegame_sort_order < 2) // sort by date
+	r = da->mtime < db->mtime ? -1 : 1;
+	else
+		r = stricmp(da->title[0] ? da->title : da->name, db->title[0] ? db->title : db->name);
+
+	if (_savegame_sort_order & 1) r = -r;
+	return r;
+}
+
+
+// Get a list of savegames
+FiosItem *FiosGetSavegameList(int *num, int mode)
+{
+	FiosItem *fios;
+	DIR *dir;
+	struct dirent *dirent;
+	struct stat sb;
+	int sort_start;
+	char filename[MAX_PATH];
+
+	if (_fios_save_path == NULL) {
+		_fios_save_path = malloc(MAX_PATH);
+		strcpy(_fios_save_path, _path.save_dir);
+	}
+
+	if(_game_mode==GM_EDITOR)
+		_fios_path = _fios_scn_path;
+	else
+		_fios_path = _fios_save_path;
+
+	// Parent directory, only if not in root already.
+	if (_fios_path[1] != 0) {
+		fios = FiosAlloc();
+		fios->type = FIOS_TYPE_PARENT;
+		fios->mtime = 0;
+		sprintf(fios->title, ".. (Parent directory)");
+	}
+
+	// Show subdirectories first
+	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
+	if (dir != NULL) {
+		while ((dirent = readdir(dir))) {
+			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
+			if (!stat(filename, &sb)) {
+				if (S_ISDIR(sb.st_mode)) {
+					if (dirent->d_name[0] != '.') {
+						fios = FiosAlloc();
+						fios->mtime = 0;
+						fios->type = FIOS_TYPE_DIR;
+						fios->title[0] = 0;
+						sprintf(fios->name, "%s\\ (Directory)", dirent->d_name);
+					}
+				}
+			}
+		}
+		closedir(dir);
+	}
+
+	{
+		/* XXX ugly global variables ... */
+		byte order = _savegame_sort_order;
+		_savegame_sort_order = 2; // sort ascending by name
+		qsort(_fios_items, _fios_count, sizeof(FiosItem), compare_FiosItems);
+		_savegame_sort_order = order;
+	}
+
+	// this is where to start sorting
+	sort_start = _fios_count;
+
+	/*      Show savegame files
+	 *      .SAV    OpenTTD saved game
+	 *      .SS1    Transport Tycoon Deluxe preset game
+	 *      .SV1    Transport Tycoon Deluxe (Patch) saved game
+	 *      .SV2    Transport Tycoon Deluxe (Patch) saved 2-player game
+	 */
+	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
+	if (dir != NULL) {
+		while ((dirent = readdir(dir))) {
+			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
+			if (!stat(filename, &sb)) {
+				if (!S_ISDIR(sb.st_mode)) {
+					char *t = strrchr(dirent->d_name, '.');
+					if (t && !stricmp(t, ".sav")) { // OpenTTD
+						*t = 0; // cut extension
+						fios = FiosAlloc();
+						fios->type = FIOS_TYPE_FILE;
+						fios->mtime = sb.st_mtime;
+						fios->title[0] = 0;
+						ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name));
+					} else if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO) {
+						int ext = 0; // start of savegame extensions in _old_extensions[]
+						if (t && ((ext++, !stricmp(t, ".ss1")) || (ext++, !stricmp(t, ".sv1")) || (ext++, !stricmp(t, ".sv2"))) ) { // TTDLX(Patch)
+							*t = 0; // cut extension
+							fios = FiosAlloc();
+							fios->old_extension = ext-1;
+							fios->type = FIOS_TYPE_OLDFILE;
+							fios->mtime = sb.st_mtime;
+							ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name));
+							GetOldSaveGameName(fios->title, filename);
+						}
+					}
+				}
+			}
+		}
+		closedir(dir);
+	}
+
+	qsort(_fios_items + sort_start, _fios_count - sort_start, sizeof(FiosItem), compare_FiosItems);
+
+	// Drives
+	{
+		unsigned save, disk, disk2, total;
+
+		/* save original drive */
+		_dos_getdrive(&save);
+
+		/* get available drive letters */
+
+		for (disk = 1; disk < 27; ++disk)
+		{
+			_dos_setdrive(disk, &total);
+			_dos_getdrive(&disk2);
+			
+			if (disk == disk2)
+			{
+				fios = FiosAlloc();
+				fios->type = FIOS_TYPE_DRIVE;
+				fios->title[0] = disk + 'A'-1;
+				fios->title[1] = ':';
+				fios->title[2] = 0;
+			}
+		}
+
+		_dos_setdrive(save, &total);
+	}
+
+	*num = _fios_count;
+	return _fios_items;
+}
+
+// Get a list of scenarios
+FiosItem *FiosGetScenarioList(int *num, int mode)
+{
+	FiosItem *fios;
+	DIR *dir;
+	struct dirent *dirent;
+	struct stat sb;
+	int sort_start;
+	char filename[MAX_PATH];
+
+	if (_fios_scn_path == NULL) {
+		_fios_scn_path = malloc(MAX_PATH);
+		strcpy(_fios_scn_path, _path.scenario_dir);
+	}
+	_fios_path = _fios_scn_path;
+
+	// Show subdirectories first
+	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
+	if (dir != NULL) {
+		while ((dirent = readdir(dir))) {
+			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
+			if (!stat(filename, &sb)) {
+				if (S_ISDIR(sb.st_mode)) {
+					if (dirent->d_name[0] != '.') {
+						fios = FiosAlloc();
+						fios->mtime = 0;
+						fios->type = FIOS_TYPE_DIR;
+						fios->title[0] = 0;
+						sprintf(fios->name, "%s\\ (Directory)", dirent->d_name);
+					}
+				}
+			}
+		}
+		closedir(dir);
+	}
+
+	// this is where to start sorting
+	sort_start = _fios_count;
+
+	/*      Show scenario files
+	 *      .SCN    OpenTTD style scenario file
+	 *      .SV0    Transport Tycoon Deluxe (Patch) scenario
+	 *      .SS0    Transport Tycoon Deluxe preset scenario
+	 */
+	dir = opendir(_fios_path[0] ? _fios_path : "C:\\");
+	if (dir != NULL) {
+		while ((dirent = readdir(dir))) {
+			sprintf (filename, "%s\\%s", _fios_path, dirent->d_name);
+			if (!stat(filename, &sb)) {
+				if (!S_ISDIR(sb.st_mode)) {
+					char *t = strrchr(dirent->d_name, '.');
+					if (t && !stricmp(t, ".scn")) { // OpenTTD
+						*t = 0; // cut extension
+						fios = FiosAlloc();
+						fios->type = FIOS_TYPE_SCENARIO;
+						fios->mtime = sb.st_mtime;
+						fios->title[0] = 0;
+						ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name)-3);
+					} else if (mode == SLD_LOAD_GAME || mode == SLD_LOAD_SCENARIO || mode == SLD_NEW_GAME) {
+						int ext = 3; // start of scenario extensions in _old_extensions[]
+						if (t && ((ext++, !stricmp(t, ".sv0")) || (ext++, !stricmp(t, ".ss0"))) ) { // TTDLX(Patch)
+							*t = 0; // cut extension
+							fios = FiosAlloc();
+							fios->old_extension = ext-1;
+							fios->type = FIOS_TYPE_OLD_SCENARIO;
+							fios->mtime = sb.st_mtime;
+							GetOldScenarioGameName(fios->title, filename);
+							ttd_strlcpy(fios->name, dirent->d_name, sizeof(fios->name)-3);
+						}
+					}
+				}
+			}
+		}
+		closedir(dir);
+	}
+
+	qsort(_fios_items + sort_start, _fios_count - sort_start, sizeof(FiosItem), compare_FiosItems);
+
+	// Drives
+	if (mode != SLD_NEW_GAME)
+	{
+		unsigned save, disk, disk2, total;
+
+		/* save original drive */
+		_dos_getdrive(&save);
+
+		/* get available drive letters */
+
+		for (disk = 1; disk < 27; ++disk)
+		{
+			_dos_setdrive(disk, &total);
+			_dos_getdrive(&disk2);
+			
+			if (disk == disk2)
+			{
+				fios = FiosAlloc();
+				fios->type = FIOS_TYPE_DRIVE;
+				fios->title[0] = disk + 'A'-1;
+				fios->title[1] = ':';
+				fios->title[2] = 0;
+			}
+		}
+
+		_dos_setdrive(save, &total);
+	}
+
+	*num = _fios_count;
+	return _fios_items;
+}
+
+
+// Free the list of savegames
+void FiosFreeSavegameList()
+{
+	free(_fios_items);
+	_fios_items = NULL;
+	_fios_alloc = _fios_count = 0;
+}
+
+// Browse to
+char *FiosBrowseTo(const FiosItem *item)
+{
+	char *path = _fios_path;
+	char *s;
+
+	switch(item->type) {
+	case FIOS_TYPE_PARENT:
+		s = strrchr(path, '\\');
+		if (s != NULL) *s = 0;
+		break;
+
+	case FIOS_TYPE_DIR:
+		s = strchr((char*)item->name, '\\');
+		if (s) *s = 0;
+		while (*path) path++;
+		*path++ = '\\';
+		strcpy(path, item->name);
+		break;
+
+	case FIOS_TYPE_FILE:
+		FiosMakeSavegameName(str_buffr, item->name);
+		return str_buffr;
+
+	case FIOS_TYPE_OLDFILE:
+		sprintf(str_buffr, "%s\\%s.%s", _fios_path, item->name, _old_extensions[item->old_extension]);
+		return str_buffr;
+
+	case FIOS_TYPE_SCENARIO:
+		sprintf(str_buffr, "%s\\%s.scn", path, item->name);
+		return str_buffr;
+
+	case FIOS_TYPE_OLD_SCENARIO:
+		sprintf(str_buffr, "%s\\%s.%s", path, item->name, _old_extensions[item->old_extension]);
+		return str_buffr;
+	}
+
+	return NULL;
+}
+
+// Get descriptive texts.
+// Returns a path as well as a
+//  string describing the path.
+StringID FiosGetDescText(const char **path)
+{
+	struct diskfree_t free;
+	char drive;
+	
+	*path = _fios_path[0] ? _fios_path : "C:\\";
+	drive = 'B' - *path[0];
+
+	_getdiskfree(drive, &free);
+		
+	SetDParam(0, free.avail_clusters * free.sectors_per_cluster * free.bytes_per_sector);
+	return STR_4005_BYTES_FREE;
+}
+
+void FiosMakeSavegameName(char *buf, const char *name)
+{
+	if(_game_mode==GM_EDITOR)
+		sprintf(buf, "%s\\%s.scn", _fios_path, name);
+	else
+		sprintf(buf, "%s\\%s.sav", _fios_path, name);
+}
+
+void FiosDelete(const char *name)
+{
+	char *path = str_buffr;
+	FiosMakeSavegameName(path, name);
+	unlink(path);
+}
+
+const DriverDesc _video_driver_descs[] = {
+	{"null",	"Null Video Driver",    &_null_video_driver,    0},
+#if defined(WITH_SDL)
+	{ "sdl",	"SDL Video Driver",	     &_sdl_video_driver,	     1},
+#endif
+	{ "dedicated", "Dedicated Video Driver", &_dedicated_video_driver, 0},
+	{ NULL,	 NULL,								   NULL,								   0}
+};
+
+const DriverDesc _sound_driver_descs[] = {
+	{"null",	"Null Sound Driver",    &_null_sound_driver,	    0},
+#if defined(WITH_SDL)
+	{ "sdl",	"SDL Sound Driver",	     &_sdl_sound_driver,		     1},
+#endif
+	{ NULL,	 NULL,								   NULL,									   0}
+};
+
+const DriverDesc _music_driver_descs[] = {
+	{   "null",     "Null Music Driver",	    &_null_music_driver,	    0},
+	{     NULL,     NULL,									   NULL,									   0}
+};
+
+/* GetOSVersion returns the minimal required version of OS to be able to use that driver.
+	 Not needed for *nix. */
+byte GetOSVersion()
+{
+	return 2;  // any arbitrary number bigger then 0
+				// numbers lower than 2 breaks default music selection on mac
+}
+
+bool FileExists(const char *filename)
+{
+	return access(filename, 0) == 0;
+}
+
+static int LanguageCompareFunc(const void *a, const void *b)
+{
+	return strcmp(*(const char* const *)a, *(const char* const *)b);
+}
+
+int GetLanguageList(char **languages, int max)
+{
+	DIR *dir;
+	struct dirent *dirent;
+	int num = 0;
+
+	dir = opendir(_path.lang_dir);
+	if (dir != NULL) {
+		while ((dirent = readdir(dir))) {
+			char *t = strrchr(dirent->d_name, '.');
+			if (t && !strcmp(t, ".lng")) {
+				languages[num++] = strdup(dirent->d_name);
+				if (num == max) break;
+			}
+		}
+		closedir(dir);
+	}
+
+	qsort(languages, num, sizeof(char*), LanguageCompareFunc);
+	return num;
+}
+
+static void ChangeWorkingDirectory(char *exe)
+{
+	char *s = strrchr(exe, '\\');
+	if (s != NULL) {
+		*s = 0;
+		chdir(exe);
+		*s = '\\';
+	}
+}
+
+void ShowInfo(const char *str)
+{
+	puts(str);
+}
+
+void ShowOSErrorBox(const char *buf)
+{
+	WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, buf, "OpenTTD", 263, MB_OK | MB_APPLMODAL | MB_MOVEABLE | MB_ERROR);
+// TODO: FIX, doesn't always appear
+}
+
+int CDECL main(int argc, char* argv[])
+{
+	// change the working directory to enable doubleclicking in UIs
+	ChangeWorkingDirectory(argv[0]);
+
+	_random_seeds[0][1] = _random_seeds[0][0] = time(NULL);
+
+
+	return ttd_main(argc, argv);
+}
+
+void DeterminePaths()
+{
+	char *s;
+
+	_path.game_data_dir = malloc( MAX_PATH );
+	ttd_strlcpy(_path.game_data_dir, GAME_DATA_DIR, MAX_PATH);
+	#if defined SECOND_DATA_DIR
+	_path.second_data_dir = malloc( MAX_PATH );
+	ttd_strlcpy( _path.second_data_dir, SECOND_DATA_DIR, MAX_PATH);
+	#endif
+
+#if defined(USE_HOMEDIR)
+	{
+		char *homedir;
+		homedir = getenv("HOME");
+
+		if(!homedir) {
+			struct passwd *pw = getpwuid(getuid());
+			if (pw) homedir = pw->pw_dir;
+		}
+
+		_path.personal_dir = str_fmt("%s" PATHSEP "%s", homedir, PERSONAL_DIR);
+	}
+
+#else /* not defined(USE_HOMEDIR) */
+
+	_path.personal_dir = malloc( MAX_PATH );
+	ttd_strlcpy(_path.personal_dir, PERSONAL_DIR, MAX_PATH);
+
+	// check if absolute or relative path
+	s = strchr(_path.personal_dir, '\\');
+
+	// add absolute path
+	if (s==NULL || _path.personal_dir != s) {
+		getcwd(_path.personal_dir, MAX_PATH);
+		s = strchr(_path.personal_dir, 0);
+		*s++ = '\\';
+		ttd_strlcpy(s, PERSONAL_DIR, MAX_PATH);
+	}
+
+#endif /* defined(USE_HOMEDIR) */
+
+	s = strchr(_path.personal_dir, 0);
+
+	// append a / ?
+	if (s[-1] != '\\') { s[0] = '\\'; s[1] = 0; }
+
+	_path.save_dir = str_fmt("%ssave", _path.personal_dir);
+	_path.autosave_dir = str_fmt("%s\\autosave", _path.save_dir);
+	_path.scenario_dir = str_fmt("%sscenario", _path.personal_dir);
+	_path.gm_dir = str_fmt("%sgm\\", _path.game_data_dir);
+	_path.data_dir = str_fmt("%sdata\\", _path.game_data_dir);
+	_config_file = str_fmt("%sopenttd.cfg", _path.personal_dir);
+	
+#if defined CUSTOM_LANG_DIR
+	// sets the search path for lng files to the custom one
+	_path.lang_dir = malloc( MAX_PATH );
+	ttd_strlcpy( _path.lang_dir, CUSTOM_LANG_DIR, MAX_PATH);
+#else
+	_path.lang_dir = str_fmt("%slang\\", _path.game_data_dir);
+#endif
+
+	// create necessary folders
+	mkdir(_path.personal_dir);
+	mkdir(_path.save_dir);
+	mkdir(_path.autosave_dir);
+	mkdir(_path.scenario_dir);
+}
+