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 )
41 # include <mmsystem.h>
46 /*****************************************************************************
47 * system_Init: initialize winsock and misc other things.
48 *****************************************************************************/
49 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
53 /* Get our full path */
54 char psz_path[MAX_PATH];
57 #if defined( UNDER_CE )
58 wchar_t psz_wpath[MAX_PATH];
59 if( GetModuleFileName( NULL, psz_wpath, MAX_PATH ) )
61 WideCharToMultiByte( CP_ACP, 0, psz_wpath, -1,
62 psz_path, MAX_PATH, NULL, NULL );
64 else psz_path[0] = '\0';
69 GetFullPathName( ppsz_argv[0], MAX_PATH, psz_path, &psz_vlc );
71 else if( !GetModuleFileName( NULL, psz_path, MAX_PATH ) )
77 if( (psz_vlc = strrchr( psz_path, '\\' )) ) *psz_vlc = '\0';
81 /* remove trailing \.libs from executable dir path if seen,
82 we assume we are running vlc through libtool wrapper in build dir */
83 int offset = strlen(psz_path)-sizeof("\\.libs")+1;
86 psz_vlc = psz_path+offset;
87 if( ! strcmp(psz_vlc, "\\.libs") ) *psz_vlc = '\0';
92 vlc_global()->psz_vlcpath = strdup( psz_path );
94 /* Set the default file-translation mode */
95 #if !defined( UNDER_CE )
97 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
102 /* Call mdate() once to make sure it is initialized properly */
105 /* WinSock Library Init. */
106 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
108 /* Aah, pretty useless check, we should always have Winsock 2.2
109 * since it appeared in Win98. */
110 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
111 /* We could not find a suitable WinSock DLL. */
114 /* Everything went ok. */
118 /* Let's try with WinSock 1.1 */
119 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
121 /* Confirm that the WinSock DLL supports 1.1.*/
122 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
123 /* We could not find a suitable WinSock DLL. */
126 /* Everything went ok. */
130 fprintf( stderr, "error: can't initialize WinSocks\n" );
133 /*****************************************************************************
134 * system_Configure: check for system specific configuration options.
135 *****************************************************************************/
136 static void IPCHelperThread( vlc_object_t * );
137 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
145 void system_Configure( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
147 #if !defined( UNDER_CE )
148 /* Raise default priority of the current process */
149 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
150 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
152 if( config_GetInt( p_this, "high-priority" ) )
154 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
155 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
157 msg_Dbg( p_this, "raised process priority" );
161 msg_Dbg( p_this, "could not raise process priority" );
165 if( config_GetInt( p_this, "one-instance" )
166 || ( config_GetInt( p_this, "one-instance-when-started-from-file" )
167 && config_GetInt( p_this, "started-from-file" ) ) )
171 msg_Info( p_this, "one instance mode ENABLED");
173 /* Use a named mutex to check if another instance is already running */
174 if( !( hmutex = CreateMutex( 0, TRUE, _T("VLC ipc ") _T(VERSION) ) ) )
176 /* Failed for some reason. Just ignore the option and go on as
178 msg_Err( p_this, "one instance mode DISABLED "
179 "(mutex couldn't be created)" );
183 if( GetLastError() != ERROR_ALREADY_EXISTS )
185 /* We are the 1st instance. */
186 vlc_object_t *p_helper =
187 (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
189 /* Run the helper thread */
190 if( vlc_thread_create( p_helper, "IPC helper", IPCHelperThread,
191 VLC_THREAD_PRIORITY_LOW, true ) )
193 msg_Err( p_this, "one instance mode DISABLED "
194 "(IPC helper thread couldn't be created)" );
198 /* Initialization done.
199 * Release the mutex to unblock other instances */
200 ReleaseMutex( hmutex );
204 /* Another instance is running */
208 /* Wait until the 1st instance is initialized */
209 WaitForSingleObject( hmutex, INFINITE );
211 /* Locate the window created by the IPC helper thread of the
213 if( !( ipcwindow = FindWindow( 0, _T("VLC ipc ") _T(VERSION) ) ) )
215 msg_Err( p_this, "one instance mode DISABLED "
216 "(couldn't find 1st instance of program)" );
217 ReleaseMutex( hmutex );
221 /* We assume that the remaining parameters are filenames
222 * and their input options */
223 if( *pi_argc - 1 >= optind )
225 COPYDATASTRUCT wm_data;
227 vlc_ipc_data_t *p_data;
228 size_t i_data = sizeof (*p_data);
230 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
232 i_data += sizeof (size_t);
233 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
236 p_data = malloc( i_data );
237 p_data->argc = *pi_argc - optind;
238 p_data->enqueue = config_GetInt( p_this, "playlist-enqueue" );
240 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
242 size_t i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
243 /* Windows will never switch to an architecture
244 * with stronger alignment requirements, right. */
245 *((size_t *)(p_data->data + i_data)) = i_len;
246 i_data += sizeof (size_t);
247 memcpy( &p_data->data[i_data], ppsz_argv[ i_opt ], i_len );
250 i_data += sizeof (*p_data);
252 /* Send our playlist items to the 1st instance */
254 wm_data.cbData = i_data;
255 wm_data.lpData = p_data;
256 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
259 /* Initialization done.
260 * Release the mutex to unblock other instances */
261 ReleaseMutex( hmutex );
264 system_End( p_this );
272 static void IPCHelperThread( vlc_object_t *p_this )
278 CreateWindow( _T("STATIC"), /* name of window class */
279 _T("VLC ipc ") _T(VERSION), /* window title bar text */
280 0, /* window style */
281 0, /* default X coordinate */
282 0, /* default Y coordinate */
283 0, /* window width */
284 0, /* window height */
285 NULL, /* no parent window */
286 NULL, /* no menu in this window */
287 GetModuleHandle(NULL), /* handle of this program instance */
288 NULL ); /* sent to WM_CREATE */
290 SetWindowLong( ipcwindow, GWL_WNDPROC, (LONG)WMCOPYWNDPROC );
291 SetWindowLongPtr( ipcwindow, GWL_USERDATA, (LONG_PTR)p_this );
293 /* Signal the creation of the thread and events queue */
294 vlc_thread_ready( p_this );
296 while( GetMessage( &message, NULL, 0, 0 ) )
298 TranslateMessage( &message );
299 DispatchMessage( &message );
303 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
306 if( uMsg == WM_COPYDATA )
308 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
309 vlc_object_t *p_this;
310 playlist_t *p_playlist;
312 p_this = (vlc_object_t *)GetWindowLongPtr( hwnd, GWL_USERDATA );
314 if( !p_this ) return 0;
316 /* Add files to the playlist */
317 p_playlist = (playlist_t *)vlc_object_find( p_this,
320 if( !p_playlist ) return 0;
322 if( pwm_data->lpData )
325 vlc_ipc_data_t *p_data = (vlc_ipc_data_t *)pwm_data->lpData;
327 int i_argc = p_data->argc, i_opt, i_options;
329 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
330 for( i_opt = 0; i_opt < i_argc; i_opt++ )
332 ppsz_argv[i_opt] = p_data->data + i_data + sizeof(int);
333 i_data += sizeof(int) + *((int *)(p_data->data + i_data));
336 for( i_opt = 0; i_opt < i_argc; i_opt++ )
340 /* Count the input options */
341 while( i_opt + i_options + 1 < i_argc &&
342 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
346 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
347 NULL, PLAYLIST_APPEND |
348 ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
350 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
351 i_options, true, false );
359 vlc_object_release( p_playlist );
362 return DefWindowProc( hwnd, uMsg, wParam, lParam );
365 /*****************************************************************************
366 * system_End: terminate winsock.
367 *****************************************************************************/
368 void system_End( libvlc_int_t *p_this )
370 if( p_this && vlc_global() )
372 free( vlc_global()->psz_vlcpath );
373 vlc_global()->psz_vlcpath = NULL;
376 #if !defined( UNDER_CE )