support multi-byte file name on Windows

gframe/game.cpp

@@ -701,7 +701,9 @@ void Game::RefreshExpansionDB() {
 	if(fh != INVALID_HANDLE_VALUE) {
 		do {
 			if(!(fdataw.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
-				sprintf(fpath, "./expansions/%ls", fdataw.cFileName);
+				char fname[780];
+				BufferIO::EncodeUTF8(fdataw.cFileName, fname);
+				sprintf(fpath, "./expansions/%s", fname);
 				dataManager.LoadDB(fpath);
 			}
 		} while(FindNextFileW(fh, &fdataw));

gframe/gframe.cpp

@@ -27,7 +27,15 @@ int main(int argc, char* argv[]) {
 		 * -d: deck edit
 		 * -r: replay */
 		if(argv[i][0] == '-' && argv[i][1] == 'e') {
+#ifdef _WIN32
+			wchar_t fname[260];
+			MultiByteToWideChar(CP_ACP, 0, &argv[i][2], -1, fname, 260);
+			char fname2[260];
+			BufferIO::EncodeUTF8(fname, fname2);
+			ygo::dataManager.LoadDB(fname2);
+#else
 			ygo::dataManager.LoadDB(&argv[i][2]);
+#endif
 		} else if(!strcmp(argv[i], "-j") || !strcmp(argv[i], "-d") || !strcmp(argv[i], "-r") || !strcmp(argv[i], "-s")) {
 			exit_on_return = true;
 			irr::SEvent event;

gframe/single_mode.cpp

@@ -31,7 +31,11 @@ int SingleMode::SinglePlayThread(void* param) {
 	wchar_t fname[256];
 	myswprintf(fname, L"./single/%ls", name);
 	char fname2[256];
+#ifdef _WIN32
+	size_t slen = WideCharToMultiByte(CP_ACP, 0, fname, -1, fname2, 256, NULL, NULL);
+#else
 	size_t slen = BufferIO::EncodeUTF8(fname, fname2);
+#endif
 	mtrandom rnd;
 	time_t seed = time(0);
 	rnd.reset(seed);