1 /*****************************************************************************
2 * win32_specific.c: Win32 specific features
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
30 #include "../libvlc.h"
31 #include <vlc_playlist.h>
32 #include <vlc_charset.h>
34 #ifdef WIN32 /* optind, getopt(), included in unistd.h */
35 # include "../extras/getopt.h"
38 #if !defined( UNDER_CE )
45 /*****************************************************************************
46 * system_Init: initialize winsock and misc other things.
47 *****************************************************************************/
48 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
52 /* Get our full path */
53 char psz_path[MAX_PATH];
56 #if defined( UNDER_CE )
57 wchar_t psz_wpath[MAX_PATH];
58 if( GetModuleFileName( NULL, psz_wpath, MAX_PATH ) )
60 WideCharToMultiByte( CP_ACP, 0, psz_wpath, -1,
61 psz_path, MAX_PATH, NULL, NULL );
63 else psz_path[0] = '\0';
68 GetFullPathName( ppsz_argv[0], MAX_PATH, psz_path, &psz_vlc );
70 else if( !GetModuleFileName( NULL, psz_path, MAX_PATH ) )
76 if( (psz_vlc = strrchr( psz_path, '\\' )) ) *psz_vlc = '\0';
80 /* remove trailing \.libs from executable dir path if seen,
81 we assume we are running vlc through libtool wrapper in build dir */
82 int offset = strlen(psz_path)-sizeof("\\.libs")+1;
85 psz_vlc = psz_path+offset;
86 if( ! strcmp(psz_vlc, "\\.libs") ) *psz_vlc = '\0';
91 vlc_global()->psz_vlcpath = strdup( psz_path );
93 /* Set the default file-translation mode */
94 #if !defined( UNDER_CE )
96 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
99 /* Call mdate() once to make sure it is initialized properly */
102 /* WinSock Library Init. */
103 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
105 /* Aah, pretty useless check, we should always have Winsock 2.2
106 * since it appeared in Win98. */
107 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
108 /* We could not find a suitable WinSock DLL. */
111 /* Everything went ok. */
115 /* Let's try with WinSock 1.1 */
116 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
118 /* Confirm that the WinSock DLL supports 1.1.*/
119 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
120 /* We could not find a suitable WinSock DLL. */
123 /* Everything went ok. */
127 fprintf( stderr, "error: can't initialize WinSocks\n" );
130 /*****************************************************************************
131 * system_Configure: check for system specific configuration options.
132 *****************************************************************************/
133 static void IPCHelperThread( vlc_object_t * );
134 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
142 void system_Configure( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
144 #if !defined( UNDER_CE )
145 /* Raise default priority of the current process */
146 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
147 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
149 if( config_GetInt( p_this, "high-priority" ) )
151 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
152 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
154 msg_Dbg( p_this, "raised process priority" );
158 msg_Dbg( p_this, "could not raise process priority" );
162 if( config_GetInt( p_this, "one-instance" )
163 || ( config_GetInt( p_this, "one-instance-when-started-from-file" )
164 && config_GetInt( p_this, "started-from-file" ) ) )
168 msg_Info( p_this, "one instance mode ENABLED");
170 /* Use a named mutex to check if another instance is already running */
171 if( !( hmutex = CreateMutex( 0, TRUE, _T("VLC ipc ") _T(VERSION) ) ) )
173 /* Failed for some reason. Just ignore the option and go on as
175 msg_Err( p_this, "one instance mode DISABLED "
176 "(mutex couldn't be created)" );
180 if( GetLastError() != ERROR_ALREADY_EXISTS )
182 /* We are the 1st instance. */
183 vlc_object_t *p_helper =
184 (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
186 /* Run the helper thread */
187 if( vlc_thread_create( p_helper, "IPC helper", IPCHelperThread,
188 VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
190 msg_Err( p_this, "one instance mode DISABLED "
191 "(IPC helper thread couldn't be created)" );
195 /* Initialization done.
196 * Release the mutex to unblock other instances */
197 ReleaseMutex( hmutex );
201 /* Another instance is running */
205 /* Wait until the 1st instance is initialized */
206 WaitForSingleObject( hmutex, INFINITE );
208 /* Locate the window created by the IPC helper thread of the
210 if( !( ipcwindow = FindWindow( 0, _T("VLC ipc ") _T(VERSION) ) ) )
212 msg_Err( p_this, "one instance mode DISABLED "
213 "(couldn't find 1st instance of program)" );
214 ReleaseMutex( hmutex );
218 /* We assume that the remaining parameters are filenames
219 * and their input options */
220 if( *pi_argc - 1 >= optind )
222 COPYDATASTRUCT wm_data;
224 vlc_ipc_data_t *p_data;
225 size_t i_data = sizeof (*p_data);
227 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
229 i_data += sizeof (size_t);
230 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
233 p_data = malloc( i_data );
234 p_data->argc = *pi_argc - optind;
235 p_data->enqueue = config_GetInt( p_this, "playlist-enqueue" );
237 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
239 size_t i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
240 /* Windows will never switch to an architecture
241 * with stronger alignment requirements, right. */
242 *((size_t *)(p_data->data + i_data)) = i_len;
243 i_data += sizeof (size_t);
244 memcpy( &p_data->data[i_data], ppsz_argv[ i_opt ], i_len );
247 i_data += sizeof (*p_data);
249 /* Send our playlist items to the 1st instance */
251 wm_data.cbData = i_data;
252 wm_data.lpData = p_data;
253 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
256 /* Initialization done.
257 * Release the mutex to unblock other instances */
258 ReleaseMutex( hmutex );
261 system_End( p_this );
269 static void IPCHelperThread( vlc_object_t *p_this )
275 CreateWindow( _T("STATIC"), /* name of window class */
276 _T("VLC ipc ") _T(VERSION), /* window title bar text */
277 0, /* window style */
278 0, /* default X coordinate */
279 0, /* default Y coordinate */
280 0, /* window width */
281 0, /* window height */
282 NULL, /* no parent window */
283 NULL, /* no menu in this window */
284 GetModuleHandle(NULL), /* handle of this program instance */
285 NULL ); /* sent to WM_CREATE */
287 SetWindowLong( ipcwindow, GWL_WNDPROC, (LONG)WMCOPYWNDPROC );
288 SetWindowLong( ipcwindow, GWL_USERDATA, (LONG)p_this );
290 /* Signal the creation of the thread and events queue */
291 vlc_thread_ready( p_this );
293 while( GetMessage( &message, NULL, 0, 0 ) )
295 TranslateMessage( &message );
296 DispatchMessage( &message );
300 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
303 if( uMsg == WM_COPYDATA )
305 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
306 vlc_object_t *p_this;
307 playlist_t *p_playlist;
309 p_this = (vlc_object_t *)GetWindowLong( hwnd, GWL_USERDATA );
311 if( !p_this ) return 0;
313 /* Add files to the playlist */
314 p_playlist = (playlist_t *)vlc_object_find( p_this,
317 if( !p_playlist ) return 0;
319 if( pwm_data->lpData )
322 vlc_ipc_data_t *p_data = (vlc_ipc_data_t *)pwm_data->lpData;
324 int i_argc = p_data->argc, i_opt, i_options;
326 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
327 for( i_opt = 0; i_opt < i_argc; i_opt++ )
329 ppsz_argv[i_opt] = p_data->data + i_data + sizeof(int);
330 i_data += sizeof(int) + *((int *)(p_data->data + i_data));
333 for( i_opt = 0; i_opt < i_argc; i_opt++ )
337 /* Count the input options */
338 while( i_opt + i_options + 1 < i_argc &&
339 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
343 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
344 NULL, PLAYLIST_APPEND |
345 ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
347 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
348 i_options, VLC_TRUE, VLC_FALSE );
356 vlc_object_release( p_playlist );
359 return DefWindowProc( hwnd, uMsg, wParam, lParam );
362 /*****************************************************************************
363 * system_End: terminate winsock.
364 *****************************************************************************/
365 void system_End( libvlc_int_t *p_this )
367 if( p_this && vlc_global() )
369 free( vlc_global()->psz_vlcpath );
370 vlc_global()->psz_vlcpath = NULL;
376 /*****************************************************************************
378 * **************************************************************************/
379 const char* system_VLCPath( void )
381 libvlc_global_data_t* libvlc_global = vlc_global();
382 return libvlc_global->psz_vlcpath;