(svn r7759) -Merge: makefile rewrite. This merge features:

 - A proper ./configure, so everything needs to be configured only once, not for every make.
 - Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies.
 - A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC.
 - Proper support for OSX universal binaries.
 - Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files.
 - Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files.

Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.

1 files changed, 1140 insertions, 0 deletions

diff --git a/src/win32.c b/src/win32.c
new file mode 100644
index 000000000..a0a3d05b4
--- /dev/null
+++ b/src/win32.c
@@ -0,0 +1,1140 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "debug.h"
+#include "functions.h"
+#include "macros.h"
+#include "saveload.h"
+#include "string.h"
+#include "gfx.h"
+#include "window.h"
+#include <windows.h>
+#include <winnt.h>
+#include <wininet.h>
+#include <io.h>
+#include <fcntl.h>
+#include <shlobj.h> // SHGetFolderPath
+#include "variables.h"
+#include "win32.h"
+#include "fios.h" // opendir/readdir/closedir
+#include <ctype.h>
+#include <tchar.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+static bool _has_console;
+
+#if defined(__MINGW32__)
+	#include <stdint.h>
+#endif
+
+static bool cursor_visible = true;
+
+bool MyShowCursor(bool show)
+{
+	if (cursor_visible == show) return show;
+
+	cursor_visible = show;
+	ShowCursor(show);
+
+	return !show;
+}
+
+/** Helper function needed by dynamically loading libraries
+ * XXX: Hurray for MS only having an ANSI GetProcAddress function
+ * on normal windows and no Wide version except for in Windows Mobile/CE */
+bool LoadLibraryList(Function proc[], const char *dll)
+{
+	while (*dll != '\0') {
+		HMODULE lib;
+		lib = LoadLibrary(MB_TO_WIDE(dll));
+
+		if (lib == NULL) return false;
+		for (;;) {
+			FARPROC p;
+
+			while (*dll++ != '\0');
+			if (*dll == '\0') break;
+#if defined(WINCE)
+			p = GetProcAddress(lib, MB_TO_WIDE(dll);
+#else
+			p = GetProcAddress(lib, dll);
+#endif
+			if (p == NULL) return false;
+			*proc++ = (Function)p;
+		}
+		dll++;
+	}
+	return true;
+}
+
+#ifdef _MSC_VER
+static const char *_exception_string = NULL;
+#endif
+
+void ShowOSErrorBox(const char *buf)
+{
+	MyShowCursor(true);
+	MessageBox(GetActiveWindow(), MB_TO_WIDE(buf), _T("Error!"), MB_ICONSTOP);
+
+// if exception tracker is enabled, we crash here to let the exception handler handle it.
+#if defined(WIN32_EXCEPTION_TRACKER) && !defined(_DEBUG)
+	if (*buf == '!') {
+		_exception_string = buf;
+		*(byte*)0 = 0;
+	}
+#endif
+}
+
+#ifdef _MSC_VER
+
+static void *_safe_esp;
+static char *_crash_msg;
+static bool _expanded;
+static bool _did_emerg_save;
+static int _ident;
+
+typedef struct DebugFileInfo {
+	uint32 size;
+	uint32 crc32;
+	SYSTEMTIME file_time;
+} DebugFileInfo;
+
+static uint32 *_crc_table;
+
+static void MakeCRCTable(uint32 *table) {
+	uint32 crc, poly = 0xEDB88320L;
+	int i;
+	int j;
+
+	_crc_table = table;
+
+	for (i = 0; i != 256; i++) {
+		crc = i;
+		for (j = 8; j != 0; j--) {
+			crc = (crc & 1 ? (crc >> 1) ^ poly : crc >> 1);
+		}
+		table[i] = crc;
+	}
+}
+
+static uint32 CalcCRC(byte *data, uint size, uint32 crc) {
+	for (; size > 0; size--) {
+		crc = ((crc >> 8) & 0x00FFFFFF) ^ _crc_table[(crc ^ *data++) & 0xFF];
+	}
+	return crc;
+}
+
+static void GetFileInfo(DebugFileInfo *dfi, const TCHAR *filename)
+{
+	HANDLE file;
+	memset(dfi, 0, sizeof(dfi));
+
+	file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
+	if (file != INVALID_HANDLE_VALUE) {
+		byte buffer[1024];
+		DWORD numread;
+		uint32 filesize = 0;
+		FILETIME write_time;
+		uint32 crc = (uint32)-1;
+
+		for (;;) {
+			if (ReadFile(file, buffer, sizeof(buffer), &numread, NULL) == 0 || numread == 0)
+				break;
+			filesize += numread;
+			crc = CalcCRC(buffer, numread, crc);
+		}
+		dfi->size = filesize;
+		dfi->crc32 = crc ^ (uint32)-1;
+
+		if (GetFileTime(file, NULL, NULL, &write_time)) {
+			FileTimeToSystemTime(&write_time, &dfi->file_time);
+		}
+		CloseHandle(file);
+	}
+}
+
+
+static char *PrintModuleInfo(char *output, HMODULE mod)
+{
+	TCHAR buffer[MAX_PATH];
+	DebugFileInfo dfi;
+
+	GetModuleFileName(mod, buffer, MAX_PATH);
+	GetFileInfo(&dfi, buffer);
+	output += sprintf(output, " %-20s handle: %p size: %d crc: %.8X date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n",
+		WIDE_TO_MB(buffer),
+		mod,
+		dfi.size,
+		dfi.crc32,
+		dfi.file_time.wYear,
+		dfi.file_time.wMonth,
+		dfi.file_time.wDay,
+		dfi.file_time.wHour,
+		dfi.file_time.wMinute,
+		dfi.file_time.wSecond
+	);
+	return output;
+}
+
+static char *PrintModuleList(char *output)
+{
+	BOOL (WINAPI *EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD);
+
+	if (LoadLibraryList((Function*)&EnumProcessModules, "psapi.dll\0EnumProcessModules\0\0")) {
+		HMODULE modules[100];
+		DWORD needed;
+		BOOL res;
+		int count, i;
+
+		HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId());
+		if (proc != NULL) {
+			res = EnumProcessModules(proc, modules, sizeof(modules), &needed);
+			CloseHandle(proc);
+			if (res) {
+				count = min(needed / sizeof(HMODULE), lengthof(modules));
+
+				for (i = 0; i != count; i++) output = PrintModuleInfo(output, modules[i]);
+				return output;
+			}
+		}
+	}
+	output = PrintModuleInfo(output, NULL);
+	return output;
+}
+
+static const TCHAR _crash_desc[] =
+	_T("A serious fault condition occured in the game. The game will shut down.\n")
+	_T("Press \"Submit report\" to send crash information to the developers. ")
+	_T("This will greatly help debugging. ")
+	_T("The information contained in the report is displayed below.\n")
+	_T("Press \"Emergency save\" to attempt saving the game.");
+
+static const TCHAR _save_succeeded[] =
+	_T("Emergency save succeeded.\n")
+	_T("Be aware that critical parts of the internal game state may have become ")
+	_T("corrupted. The saved game is not guaranteed to work.");
+
+static bool EmergencySave(void)
+{
+	SaveOrLoad("crash.sav", SL_SAVE);
+	return true;
+}
+
+/* Disable the crash-save submit code as it's not used */
+#if 0
+
+typedef struct {
+	HINTERNET (WINAPI *InternetOpen)(LPCTSTR,DWORD, LPCTSTR, LPCTSTR, DWORD);
+	HINTERNET (WINAPI *InternetConnect)(HINTERNET, LPCTSTR, INTERNET_PORT, LPCTSTR, LPCTSTR, DWORD, DWORD, DWORD);
+	HINTERNET (WINAPI *HttpOpenRequest)(HINTERNET, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR, LPCTSTR *, DWORD, DWORD);
+	BOOL (WINAPI *HttpSendRequest)(HINTERNET, LPCTSTR, DWORD, LPVOID, DWORD);
+	BOOL (WINAPI *InternetCloseHandle)(HINTERNET);
+	BOOL (WINAPI *HttpQueryInfo)(HINTERNET, DWORD, LPVOID, LPDWORD, LPDWORD);
+} WinInetProcs;
+
+#define M(x) x "\0"
+#if defined(UNICODE)
+# define W(x) x "W"
+#else
+# define W(x) x "A"
+#endif
+static const char wininet_files[] =
+	M("wininet.dll")
+	M(W("InternetOpen"))
+	M(W("InternetConnect"))
+	M(W("HttpOpenRequest"))
+	M(W("HttpSendRequest"))
+	M("InternetCloseHandle")
+	M(W("HttpQueryInfo"))
+	M("");
+#undef W
+#undef M
+
+static WinInetProcs _wininet;
+
+static const TCHAR *SubmitCrashReport(HWND wnd, void *msg, size_t msglen, const TCHAR *arg)
+{
+	HINTERNET inet, conn, http;
+	const TCHAR *err = NULL;
+	DWORD code, len;
+	static TCHAR buf[100];
+	TCHAR buff[100];
+
+	if (_wininet.InternetOpen == NULL && !LoadLibraryList((Function*)&_wininet, wininet_files)) return _T("can't load wininet.dll");
+
+	inet = _wininet.InternetOpen(_T("OTTD"), INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0 );
+	if (inet == NULL) { err = _T("internetopen failed"); goto error1; }
+
+	conn = _wininet.InternetConnect(inet, _T("www.openttd.org"), INTERNET_DEFAULT_HTTP_PORT, _T(""), _T(""), INTERNET_SERVICE_HTTP, 0, 0);
+	if (conn == NULL) { err = _T("internetconnect failed"); goto error2; }
+
+	_sntprintf(buff, lengthof(buff), _T("/crash.php?file=%s&ident=%d"), arg, _ident);
+
+	http = _wininet.HttpOpenRequest(conn, _T("POST"), buff, NULL, NULL, NULL, INTERNET_FLAG_NO_CACHE_WRITE , 0);
+	if (http == NULL) { err = _T("httpopenrequest failed"); goto error3; }
+
+	if (!_wininet.HttpSendRequest(http, _T("Content-type: application/binary"), -1, msg, (DWORD)msglen)) { err = _T("httpsendrequest failed"); goto error4; }
+
+	len = sizeof(code);
+	if (!_wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &code, &len, 0)) { err = _T("httpqueryinfo failed"); goto error4; }
+
+	if (code != 200) {
+		int l = _sntprintf(buf, lengthof(buf), _T("Server said: %d "), code);
+		len = sizeof(buf) - l;
+		_wininet.HttpQueryInfo(http, HTTP_QUERY_STATUS_TEXT, buf + l, &len, 0);
+		err = buf;
+	}
+
+error4:
+	_wininet.InternetCloseHandle(http);
+error3:
+	_wininet.InternetCloseHandle(conn);
+error2:
+	_wininet.InternetCloseHandle(inet);
+error1:
+	return err;
+}
+
+static void SubmitFile(HWND wnd, const TCHAR *file)
+{
+	HANDLE h;
+	unsigned long size;
+	unsigned long read;
+	void *mem;
+
+	h = CreateFile(file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
+	if (h == NULL) return;
+
+	size = GetFileSize(h, NULL);
+	if (size > 500000) goto error1;
+
+	mem = malloc(size);
+	if (mem == NULL) goto error1;
+
+	if (!ReadFile(h, mem, size, &read, NULL) || read != size) goto error2;
+
+	SubmitCrashReport(wnd, mem, size, file);
+
+error2:
+	free(mem);
+error1:
+	CloseHandle(h);
+}
+
+#endif /* Disabled crash-submit procedures */
+
+static const TCHAR * const _expand_texts[] = {_T("S&how report >>"), _T("&Hide report <<") };
+
+static void SetWndSize(HWND wnd, int mode)
+{
+	RECT r,r2;
+	int offs;
+
+	GetWindowRect(wnd, &r);
+
+	SetDlgItemText(wnd, 15, _expand_texts[mode == 1]);
+
+	if (mode >= 0) {
+		GetWindowRect(GetDlgItem(wnd, 11), &r2);
+		offs = r2.bottom - r2.top + 10;
+		if (!mode) offs = -offs;
+		SetWindowPos(wnd, HWND_TOPMOST, 0, 0,
+			r.right - r.left, r.bottom - r.top + offs, SWP_NOMOVE | SWP_NOZORDER);
+	} else {
+		SetWindowPos(wnd, HWND_TOPMOST,
+			(GetSystemMetrics(SM_CXSCREEN) - (r.right - r.left)) / 2,
+			(GetSystemMetrics(SM_CYSCREEN) - (r.bottom - r.top)) / 2,
+			0, 0, SWP_NOSIZE);
+	}
+}
+
+static bool DoEmergencySave(HWND wnd)
+{
+	bool b = false;
+
+	EnableWindow(GetDlgItem(wnd, 13), FALSE);
+	_did_emerg_save = true;
+	__try {
+		b = EmergencySave();
+	} __except (1) {}
+	return b;
+}
+
+static INT_PTR CALLBACK CrashDialogFunc(HWND wnd,UINT msg,WPARAM wParam,LPARAM lParam)
+{
+	switch (msg) {
+		case WM_INITDIALOG: {
+#if defined(UNICODE)
+			/* We need to put the crash-log in a seperate buffer because the default
+			 * buffer in MB_TO_WIDE is not large enough (256 chars) */
+			wchar_t crash_msgW[8096];
+#endif
+			SetDlgItemText(wnd, 10, _crash_desc);
+			SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(_crash_msg, crash_msgW, lengthof(crash_msgW)));
+			SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
+			SetWndSize(wnd, -1);
+		} return TRUE;
+		case WM_COMMAND:
+			switch (wParam) {
+				case 12: /* Close */
+					ExitProcess(0);
+				case 13: /* Emergency save */
+					if (DoEmergencySave(wnd)) {
+						MessageBox(wnd, _save_succeeded, _T("Save successful"), MB_ICONINFORMATION);
+					} else {
+						MessageBox(wnd, _T("Save failed"), _T("Save failed"), MB_ICONINFORMATION);
+					}
+					break;
+/* Disable the crash-save submit code as it's not used */
+#if 0
+				case 14: { /* Submit crash report */
+					const TCHAR *s;
+
+					SetCursor(LoadCursor(NULL, IDC_WAIT));
+
+					s = SubmitCrashReport(wnd, _crash_msg, strlen(_crash_msg), _T(""));
+					if (s != NULL) {
+						MessageBox(wnd, s, _T("Error"), MB_ICONSTOP);
+						break;
+					}
+
+					// try to submit emergency savegame
+					if (_did_emerg_save || DoEmergencySave(wnd)) SubmitFile(wnd, _T("crash.sav"));
+
+					// try to submit the autosaved game
+					if (_opt.autosave) {
+						TCHAR buf[40];
+						_sntprintf(buf, lengthof(buf), _T("autosave%d.sav"), (_autosave_ctr - 1) & 3);
+						SubmitFile(wnd, buf);
+					}
+					EnableWindow(GetDlgItem(wnd, 14), FALSE);
+					SetCursor(LoadCursor(NULL, IDC_ARROW));
+					MessageBox(wnd, _T("Crash report submitted. Thank you."), _T("Crash Report"), MB_ICONINFORMATION);
+				}	break;
+#endif /* Disabled crash-submit procedures */
+				case 15: /* Expand window to show crash-message */
+					_expanded ^= 1;
+					SetWndSize(wnd, _expanded);
+					break;
+			}
+			return TRUE;
+		case WM_CLOSE: ExitProcess(0);
+	}
+
+	return FALSE;
+}
+
+static void Handler2(void)
+{
+	ShowCursor(TRUE);
+	ShowWindow(GetActiveWindow(), FALSE);
+	DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(100), NULL, CrashDialogFunc);
+}
+
+extern bool CloseConsoleLogIfActive(void);
+
+static LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep)
+{
+	extern const char _openttd_revision[];
+	char *output;
+	static bool had_exception = false;
+
+	if (had_exception) ExitProcess(0);
+	had_exception = true;
+
+	_ident = GetTickCount(); // something pretty unique
+
+	MakeCRCTable(alloca(256 * sizeof(uint32)));
+	_crash_msg = output = LocalAlloc(LMEM_FIXED, 8192);
+
+	{
+		SYSTEMTIME time;
+		GetLocalTime(&time);
+		output += sprintf(output,
+			"*** OpenTTD Crash Report ***\r\n"
+			"Date: %d-%.2d-%.2d %.2d:%.2d:%.2d\r\n"
+			"Build: %s built on " __DATE__ " " __TIME__ "\r\n",
+			time.wYear,
+			time.wMonth,
+			time.wDay,
+			time.wHour,
+			time.wMinute,
+			time.wSecond,
+			_openttd_revision
+		);
+	}
+
+	if (_exception_string)
+		output += sprintf(output, "Reason: %s\r\n", _exception_string);
+
+#ifdef _M_AMD64
+	output += sprintf(output, "Exception %.8X at %.16IX\r\n"
+		"Registers:\r\n"
+		"RAX: %.16llX RBX: %.16llX RCX: %.16llX RDX: %.16llX\r\n"
+		"RSI: %.16llX RDI: %.16llX RBP: %.16llX RSP: %.16llX\r\n"
+		"R8:  %.16llX R9:  %.16llX R10: %.16llX R11: %.16llX\r\n"
+		"R12: %.16llX R13: %.16llX R14: %.16llX R15: %.16llX\r\n"
+		"RIP: %.16llX EFLAGS: %.8X\r\n"
+		"\r\nBytes at CS:RIP:\r\n",
+		ep->ExceptionRecord->ExceptionCode,
+		ep->ExceptionRecord->ExceptionAddress,
+		ep->ContextRecord->Rax,
+		ep->ContextRecord->Rbx,
+		ep->ContextRecord->Rcx,
+		ep->ContextRecord->Rdx,
+		ep->ContextRecord->Rsi,
+		ep->ContextRecord->Rdi,
+		ep->ContextRecord->Rbp,
+		ep->ContextRecord->Rsp,
+		ep->ContextRecord->R8,
+		ep->ContextRecord->R9,
+		ep->ContextRecord->R10,
+		ep->ContextRecord->R11,
+		ep->ContextRecord->R12,
+		ep->ContextRecord->R13,
+		ep->ContextRecord->R14,
+		ep->ContextRecord->R15,
+		ep->ContextRecord->Rip,
+		ep->ContextRecord->EFlags
+	);
+#else
+	output += sprintf(output, "Exception %.8X at %.8X\r\n"
+		"Registers:\r\n"
+		" EAX: %.8X EBX: %.8X ECX: %.8X EDX: %.8X\r\n"
+		" ESI: %.8X EDI: %.8X EBP: %.8X ESP: %.8X\r\n"
+		" EIP: %.8X EFLAGS: %.8X\r\n"
+		"\r\nBytes at CS:EIP:\r\n",
+		ep->ExceptionRecord->ExceptionCode,
+		ep->ExceptionRecord->ExceptionAddress,
+		ep->ContextRecord->Eax,
+		ep->ContextRecord->Ebx,
+		ep->ContextRecord->Ecx,
+		ep->ContextRecord->Edx,
+		ep->ContextRecord->Esi,
+		ep->ContextRecord->Edi,
+		ep->ContextRecord->Ebp,
+		ep->ContextRecord->Esp,
+		ep->ContextRecord->Eip,
+		ep->ContextRecord->EFlags
+	);
+#endif
+
+	{
+#ifdef _M_AMD64
+		byte *b = (byte*)ep->ContextRecord->Rip;
+#else
+		byte *b = (byte*)ep->ContextRecord->Eip;
+#endif
+		int i;
+		for (i = 0; i != 24; i++) {
+			if (IsBadReadPtr(b, 1)) {
+				output += sprintf(output, " ??"); // OCR: WAS: , 0);
+			} else {
+				output += sprintf(output, " %.2X", *b);
+			}
+			b++;
+		}
+		output += sprintf(output,
+			"\r\n"
+			"\r\nStack trace: \r\n"
+		);
+	}
+
+	{
+		int i,j;
+#ifdef _M_AMD64
+		uint32 *b = (uint32*)ep->ContextRecord->Rsp;
+#else
+		uint32 *b = (uint32*)ep->ContextRecord->Esp;
+#endif
+		for (j = 0; j != 24; j++) {
+			for (i = 0; i != 8; i++) {
+				if (IsBadReadPtr(b,sizeof(uint32))) {
+					output += sprintf(output, " ????????"); //OCR: WAS - , 0);
+				} else {
+					output += sprintf(output, " %.8X", *b);
+				}
+				b++;
+			}
+			output += sprintf(output, "\r\n");
+		}
+	}
+
+	output += sprintf(output, "\r\nModule information:\r\n");
+	output = PrintModuleList(output);
+
+	{
+		OSVERSIONINFO os;
+		os.dwOSVersionInfoSize = sizeof(os);
+		GetVersionEx(&os);
+		output += sprintf(output, "\r\nSystem information:\r\n"
+			" Windows version %d.%d %d %s\r\n",
+			os.dwMajorVersion, os.dwMinorVersion, os.dwBuildNumber, os.szCSDVersion);
+	}
+
+	{
+		HANDLE file = CreateFile(_T("crash.log"), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
+		DWORD num_written;
+		if (file != INVALID_HANDLE_VALUE) {
+			WriteFile(file, _crash_msg, output - _crash_msg, &num_written, NULL);
+			CloseHandle(file);
+		}
+	}
+
+	/* Close any possible log files */
+	CloseConsoleLogIfActive();
+
+	if (_safe_esp) {
+#ifdef _M_AMD64
+		ep->ContextRecord->Rip = (DWORD64)Handler2;
+		ep->ContextRecord->Rsp = (DWORD64)_safe_esp;
+#else
+		ep->ContextRecord->Eip = (DWORD)Handler2;
+		ep->ContextRecord->Esp = (DWORD)_safe_esp;
+#endif
+		return EXCEPTION_CONTINUE_EXECUTION;
+	}
+
+
+	return EXCEPTION_EXECUTE_HANDLER;
+}
+
+static void Win32InitializeExceptions(void)
+{
+#ifdef _M_AMD64
+	extern void *_get_save_esp(void);
+	_safe_esp = _get_save_esp();
+#else
+	_asm {
+		mov _safe_esp, esp
+	}
+#endif
+
+	SetUnhandledExceptionFilter(ExceptionHandler);
+}
+#endif /* _MSC_VER */
+
+/* Code below for windows version of opendir/readdir/closedir copied and
+ * modified from Jan Wassenberg's GPL implementation posted over at
+ * http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1&#2398903 */
+
+/* suballocator - satisfies most requests with a reusable static instance.
+ * this avoids hundreds of alloc/free which would fragment the heap.
+ * To guarantee reentrancy, we fall back to malloc if the instance is
+ * already in use (it's important to avoid suprises since this is such a
+ * low-level routine). */
+static DIR _global_dir;
+static bool _global_dir_is_in_use = false;
+
+static inline DIR *dir_calloc(void)
+{
+	DIR *d;
+
+	if (_global_dir_is_in_use) {
+		d = calloc(1, sizeof(*d));
+	} else {
+		_global_dir_is_in_use = true;
+		d = &_global_dir;
+		memset(d, 0, sizeof(*d));
+	}
+	return d;
+}
+
+static inline void dir_free(DIR *d)
+{
+	if (d == &_global_dir) {
+		_global_dir_is_in_use = false;
+	} else {
+		free(d);
+	}
+}
+
+DIR *opendir(const char *path)
+{
+	DIR *d;
+	UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
+	DWORD fa = GetFileAttributesW(OTTD2FS(path));
+
+	if ((fa != INVALID_FILE_ATTRIBUTES) && (fa & FILE_ATTRIBUTE_DIRECTORY)) {
+		d = dir_calloc();
+		if (d != NULL) {
+			char search_path[MAX_PATH];
+			/* build search path for FindFirstFile */
+			snprintf(search_path, lengthof(search_path), "%s" PATHSEP "*", path);
+			d->hFind = FindFirstFileW(OTTD2FS(search_path), &d->fd);
+
+			if (d->hFind != INVALID_HANDLE_VALUE ||
+					GetLastError() == ERROR_NO_MORE_FILES) { // the directory is empty
+				d->ent.dir = d;
+				d->at_first_entry = true;
+			} else {
+				dir_free(d);
+				d = NULL;
+			}
+		} else {
+			errno = ENOMEM;
+		}
+	} else {
+		/* path not found or not a directory */
+		d = NULL;
+		errno = ENOENT;
+	}
+
+	SetErrorMode(sem); // restore previous setting
+	return d;
+}
+
+struct dirent *readdir(DIR *d)
+{
+	DWORD prev_err = GetLastError(); // avoid polluting last error
+
+	if (d->at_first_entry) {
+		/* the directory was empty when opened */
+		if (d->hFind == INVALID_HANDLE_VALUE) return NULL;
+		d->at_first_entry = false;
+	} else if (!FindNextFileW(d->hFind, &d->fd)) { // determine cause and bail
+		if (GetLastError() == ERROR_NO_MORE_FILES) SetLastError(prev_err);
+		return NULL;
+	}
+
+	/* This entry has passed all checks; return information about it.
+	 * (note: d_name is a pointer; see struct dirent definition) */
+	d->ent.d_name = d->fd.cFileName;
+	return &d->ent;
+}
+
+int closedir(DIR *d)
+{
+	FindClose(d->hFind);
+	dir_free(d);
+	return 0;
+}
+
+bool FiosIsRoot(const char *file)
+{
+	return file[3] == '\0'; // C:\...
+}
+
+void FiosGetDrives(void)
+{
+	TCHAR drives[256];
+	const TCHAR *s;
+
+	GetLogicalDriveStrings(sizeof(drives), drives);
+	for (s = drives; *s != '\0';) {
+		FiosItem *fios = FiosAlloc();
+		fios->type = FIOS_TYPE_DRIVE;
+		fios->mtime = 0;
+		snprintf(fios->name, lengthof(fios->name),  "%c:", s[0] & 0xFF);
+		ttd_strlcpy(fios->title, fios->name, lengthof(fios->title));
+		while (*s++ != '\0');
+	}
+}
+
+bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
+{
+	// hectonanoseconds between Windows and POSIX epoch
+	static const int64 posix_epoch_hns = 0x019DB1DED53E8000LL;
+	const WIN32_FIND_DATAW *fd = &ent->dir->fd;
+	if (fd->dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) return false;
+
+	sb->st_size  = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
+	/* UTC FILETIME to seconds-since-1970 UTC
+	 * we just have to subtract POSIX epoch and scale down to units of seconds.
+	 * http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1&#1860504
+	 * XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
+	 * this won't entirely be correct, but we use the time only for comparsion. */
+	sb->st_mtime = (time_t)((*(uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
+	sb->st_mode  = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
+
+	return true;
+}
+
+bool FiosGetDiskFreeSpace(const char *path, uint32 *tot)
+{
+	UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS);  // disable 'no-disk' message box
+	bool retval = false;
+	TCHAR root[4];
+	DWORD spc, bps, nfc, tnc;
+
+	_sntprintf(root, lengthof(root), _T("%c:") _T(PATHSEP), path[0]);
+	if (tot != NULL && GetDiskFreeSpace(root, &spc, &bps, &nfc, &tnc)) {
+		*tot = ((spc * bps) * (uint64)nfc) >> 20;
+		retval = true;
+	}
+
+	SetErrorMode(sem); // reset previous setting
+	return retval;
+}
+
+static int ParseCommandLine(char *line, char **argv, int max_argc)
+{
+	int n = 0;
+
+	do {
+		// skip whitespace
+		while (*line == ' ' || *line == '\t') line++;
+
+		// end?
+		if (*line == '\0') break;
+
+		// special handling when quoted
+		if (*line == '"') {
+			argv[n++] = ++line;
+			while (*line != '"') {
+				if (*line == '\0') return n;
+				line++;
+			}
+		} else {
+			argv[n++] = line;
+			while (*line != ' ' && *line != '\t') {
+				if (*line == '\0') return n;
+				line++;
+			}
+		}
+		*line++ = '\0';
+	} while (n != max_argc);
+
+	return n;
+}
+
+void CreateConsole(void)
+{
+	HANDLE hand;
+	CONSOLE_SCREEN_BUFFER_INFO coninfo;
+
+	if (_has_console) return;
+	_has_console = true;
+
+	AllocConsole();
+
+	hand = GetStdHandle(STD_OUTPUT_HANDLE);
+	GetConsoleScreenBufferInfo(hand, &coninfo);
+	coninfo.dwSize.Y = 500;
+	SetConsoleScreenBufferSize(hand, coninfo.dwSize);
+
+	// redirect unbuffered STDIN, STDOUT, STDERR to the console
+#if !defined(__CYGWIN__)
+	*stdout = *_fdopen( _open_osfhandle((intptr_t)hand, _O_TEXT), "w" );
+	*stdin = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_INPUT_HANDLE), _O_TEXT), "r" );
+	*stderr = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_ERROR_HANDLE), _O_TEXT), "w" );
+#else
+	// open_osfhandle is not in cygwin
+	*stdout = *fdopen(1, "w" );
+	*stdin = *fdopen(0, "r" );
+	*stderr = *fdopen(2, "w" );
+#endif
+
+	setvbuf(stdin, NULL, _IONBF, 0);
+	setvbuf(stdout, NULL, _IONBF, 0);
+	setvbuf(stderr, NULL, _IONBF, 0);
+}
+
+void ShowInfo(const char *str)
+{
+	if (_has_console) {
+		puts(str);
+	} else {
+		bool old;
+
+		ReleaseCapture();
+		_left_button_clicked =_left_button_down = false;
+
+		old = MyShowCursor(true);
+		if (MessageBox(GetActiveWindow(), MB_TO_WIDE(str), _T("OpenTTD"), MB_ICONINFORMATION | MB_OKCANCEL) == IDCANCEL) {
+			CreateConsole();
+		}
+		MyShowCursor(old);
+	}
+}
+
+#ifdef __MINGW32__
+	/* _set_error_mode() constants&function (do not exist in mingw headers) */
+	#define _OUT_TO_DEFAULT      0
+	#define _OUT_TO_STDERR       1
+	#define _OUT_TO_MSGBOX       2
+	#define _REPORT_ERRMODE      3
+	int _set_error_mode(int);
+#endif
+
+int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
+	LPTSTR lpCmdLine, int nCmdShow)
+{
+	int argc;
+	char *argv[64]; // max 64 command line arguments
+	char *cmdline;
+
+#if defined(UNICODE)
+	/* For UNICODE we need to convert the commandline to char* _AND_
+	 * save it because argv[] points into this buffer and thus needs to
+	 * be available between subsequent calls to FS2OTTD() */
+	char cmdlinebuf[MAX_PATH];
+#endif
+
+	cmdline = WIDE_TO_MB_BUFFER(GetCommandLine(), cmdlinebuf, lengthof(cmdlinebuf));
+
+#if defined(_DEBUG)
+	CreateConsole();
+#endif
+
+	_set_error_mode(_OUT_TO_MSGBOX); // force assertion output to messagebox
+
+	/* setup random seed to something quite random */
+	_random_seeds[1][0] = _random_seeds[0][0] = GetTickCount();
+	_random_seeds[1][1] = _random_seeds[0][1] = _random_seeds[0][0] * 0x1234567;
+	SeedMT(_random_seeds[0][0]);
+
+	argc = ParseCommandLine(cmdline, argv, lengthof(argv));
+
+#if defined(WIN32_EXCEPTION_TRACKER)
+	Win32InitializeExceptions();
+#endif
+
+#if defined(WIN32_EXCEPTION_TRACKER_DEBUG)
+	_try {
+		LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep);
+#endif
+		ttd_main(argc, argv);
+
+#if defined(WIN32_EXCEPTION_TRACKER_DEBUG)
+	} _except (ExceptionHandler(_exception_info())) {}
+#endif
+
+	return 0;
+}
+
+void DeterminePaths(void)
+{
+	char *s, *cfg;
+	wchar_t path[MAX_PATH];
+
+	_paths.personal_dir = _paths.game_data_dir = cfg = malloc(MAX_PATH);
+	GetCurrentDirectoryW(MAX_PATH - 1, path);
+	convert_from_fs(path, cfg, MAX_PATH);
+
+	cfg[0] = toupper(cfg[0]);
+	s = strchr(cfg, '\0');
+	if (s[-1] != '\\') strcpy(s, "\\");
+
+	_paths.save_dir = str_fmt("%ssave", cfg);
+	_paths.autosave_dir = str_fmt("%s\\autosave", _paths.save_dir);
+	_paths.scenario_dir = str_fmt("%sscenario", cfg);
+	_paths.heightmap_dir = str_fmt("%sscenario\\heightmap", cfg);
+	_paths.gm_dir = str_fmt("%sgm\\", cfg);
+	_paths.data_dir = str_fmt("%sdata\\", cfg);
+	_paths.lang_dir = str_fmt("%slang\\", cfg);
+
+	if (_config_file == NULL)
+		_config_file = str_fmt("%sopenttd.cfg", _paths.personal_dir);
+
+	_highscore_file = str_fmt("%shs.dat", _paths.personal_dir);
+	_log_file = str_fmt("%sopenttd.log", _paths.personal_dir);
+
+	// make (auto)save and scenario folder
+	CreateDirectoryW(OTTD2FS(_paths.save_dir), NULL);
+	CreateDirectoryW(OTTD2FS(_paths.autosave_dir), NULL);
+	CreateDirectoryW(OTTD2FS(_paths.scenario_dir), NULL);
+	CreateDirectoryW(OTTD2FS(_paths.heightmap_dir), NULL);
+}
+
+/**
+ * Insert a chunk of text from the clipboard onto the textbuffer. Get TEXT clipboard
+ * and append this up to the maximum length (either absolute or screenlength). If maxlength
+ * is zero, we don't care about the screenlength but only about the physical length of the string
+ * @param tb @Textbuf type to be changed
+ * @return Return true on successfull change of Textbuf, or false otherwise
+ */
+bool InsertTextBufferClipboard(Textbuf *tb)
+{
+	HGLOBAL cbuf;
+	char utf8_buf[512];
+	const char *ptr;
+
+	WChar c;
+	uint16 width, length;
+
+	if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
+		const char *ret;
+
+		OpenClipboard(NULL);
+		cbuf = GetClipboardData(CF_UNICODETEXT);
+
+		ptr = GlobalLock(cbuf);
+		ret = convert_from_fs((wchar_t*)ptr, utf8_buf, lengthof(utf8_buf));
+		GlobalUnlock(cbuf);
+		CloseClipboard();
+
+		if (*ret == '\0') return false;
+	} else if (IsClipboardFormatAvailable(CF_TEXT)) {
+		OpenClipboard(NULL);
+		cbuf = GetClipboardData(CF_TEXT);
+
+		ptr = GlobalLock(cbuf);
+		ttd_strlcpy(utf8_buf, ptr, lengthof(utf8_buf));
+		GlobalUnlock(cbuf);
+		CloseClipboard();
+	} else {
+		return false;
+	}
+
+	width = length = 0;
+
+	for (ptr = utf8_buf; (c = Utf8Consume(&ptr)) != '\0';) {
+		byte charwidth;
+
+		if (!IsPrintable(c)) break;
+		if (tb->length + length >= tb->maxlength - 1) break;
+		charwidth = GetCharacterWidth(FS_NORMAL, c);
+
+		if (tb->maxwidth != 0 && width + tb->width + charwidth > tb->maxwidth) break;
+
+		width += charwidth;
+		length += Utf8CharLen(c);
+	}
+
+	if (length == 0) return false;
+
+	memmove(tb->buf + tb->caretpos + length, tb->buf + tb->caretpos, tb->length - tb->caretpos);
+	memcpy(tb->buf + tb->caretpos, utf8_buf, length);
+	tb->width += width;
+	tb->caretxoffs += width;
+
+	tb->length += length;
+	tb->caretpos += length;
+	tb->buf[tb->length] = '\0'; // terminating zero
+
+	return true;
+}
+
+
+void CSleep(int milliseconds)
+{
+	Sleep(milliseconds);
+}
+
+
+// Utility function to get the current timestamp in milliseconds
+// Useful for profiling
+int64 GetTS(void)
+{
+	static double freq;
+	__int64 value;
+	if (!freq) {
+		QueryPerformanceFrequency((LARGE_INTEGER*)&value);
+		freq = (double)1000000 / value;
+	}
+	QueryPerformanceCounter((LARGE_INTEGER*)&value);
+	return (__int64)(value * freq);
+}
+
+/** Convert from OpenTTD's encoding to that of the local environment in
+ * UNICODE. OpenTTD encoding is UTF8, local is wide-char
+ * @param name pointer to a valid string that will be converted
+ * @param utf16_buf pointer to a valid wide-char buffer that will receive the
+ * converted string
+ * @param buflen length in wide characters of the receiving buffer
+ * @return pointer to utf16_buf. If conversion fails the string is of zero-length */
+wchar_t *convert_to_fs(const char *name, wchar_t *utf16_buf, size_t buflen)
+{
+	int len = MultiByteToWideChar(CP_UTF8, 0, name, -1, utf16_buf, buflen);
+	if (len == 0) {
+		DEBUG(misc, 0, "[utf8] error converting '%s'. Errno %d", name, GetLastError());
+		utf16_buf[0] = '\0';
+	}
+
+	return utf16_buf;
+}
+
+/** Convert from OpenTTD's encoding to that of the local environment in
+ * UNICODE. OpenTTD encoding is UTF8, local is wide-char.
+ * The returned value's contents can only be guaranteed until the next call to
+ * this function. So if the value is needed for anything else, use convert_from_fs
+ * @param name pointer to a valid string that will be converted
+ * @return pointer to the converted string; if failed string is of zero-length */
+const wchar_t *OTTD2FS(const char *name)
+{
+	static wchar_t utf16_buf[512];
+	return convert_to_fs(name, utf16_buf, lengthof(utf16_buf));
+}
+
+
+/** Convert to OpenTTD's encoding from that of the local environment in
+ * UNICODE. OpenTTD encoding is UTF8, local is wide-char
+ * @param name pointer to a valid string that will be converted
+ * @param utf8_buf pointer to a valid buffer that will receive the converted string
+ * @param buflen length in characters of the receiving buffer
+ * @return pointer to utf8_buf. If conversion fails the string is of zero-length */
+char *convert_from_fs(const wchar_t *name, char *utf8_buf, size_t buflen)
+{
+	int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, utf8_buf, buflen, NULL, NULL);
+	if (len == 0) {
+		DEBUG(misc, 0, "[utf8] error converting wide-string. Errno %d", GetLastError());
+		utf8_buf[0] = '\0';
+	}
+
+	return utf8_buf;
+}
+
+/** Convert to OpenTTD's encoding from that of the local environment in
+ * UNICODE. OpenTTD encoding is UTF8, local is wide-char.
+ * The returned value's contents can only be guaranteed until the next call to
+ * this function. So if the value is needed for anything else, use convert_from_fs
+ * @param name pointer to a valid string that will be converted
+ * @return pointer to the converted string; if failed string is of zero-length */
+const char *FS2OTTD(const wchar_t *name)
+{
+	static char utf8_buf[512];
+	return convert_from_fs(name, utf8_buf, lengthof(utf8_buf));
+}
+
+/** Our very own SHGetFolderPath function for support of windows operating
+ * systems that don't have this function (eg Win9x, etc.). We try using the
+ * native function, and if that doesn't exist we will try a more crude approach
+ * of environment variables and hope for the best */
+HRESULT OTTDSHGetFolderPath(HWND hwnd, int csidl, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath)
+{
+	static HRESULT (WINAPI *SHGetFolderPath)(HWND, int, HANDLE, DWORD, LPTSTR) = NULL;
+	static bool first_time = true;
+
+	/* We only try to load the library one time; if it fails, it fails */
+	if (first_time) {
+#if defined(UNICODE)
+# define W(x) x "W"
+#else
+# define W(x) x "A"
+#endif
+		if (!LoadLibraryList((Function*)&SHGetFolderPath, "SHFolder.dll\0" W("SHGetFolderPath") "\0\0")) {
+			DEBUG(misc, 0, "Unable to load " W("SHGetFolderPath") "from SHFolder.dll");
+		}
+#undef W
+		first_time = false;
+	}
+
+	if (SHGetFolderPath != NULL) return SHGetFolderPath(hwnd, csidl, hToken, dwFlags, pszPath);
+
+	/* SHGetFolderPath doesn't exist, try a more conservative approach,
+	 * eg environment variables. This is only included for legacy modes
+	 * MSDN says: that 'pszPath' is a "Pointer to a null-terminated string of
+	 * length MAX_PATH which will receive the path" so let's assume that
+	 * Windows 95 with Internet Explorer 5.0, Windows 98 with Internet Explorer 5.0,
+	 * Windows 98 Second Edition (SE), Windows NT 4.0 with Internet Explorer 5.0,
+	 * Windows NT 4.0 with Service Pack 4 (SP4) */
+	{
+		DWORD ret;
+		switch (csidl) {
+			case CSIDL_FONTS: /* Get the system font path, eg %WINDIR%\Fonts */
+				ret = GetEnvironmentVariable(_T("WINDIR"), pszPath, MAX_PATH);
+				if (ret == 0) break;
+				_tcsncat(pszPath, _T("\\Fonts"), MAX_PATH);
+
+				return (HRESULT)0;
+				break;
+			/* XXX - other types to go here when needed... */
+		}
+	}
+
+	return E_INVALIDARG;
+}