SDL_BeApp.cc
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_BeApp.cc,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #endif
- /* Handle the BeApp specific portions of the application */
- #include <AppKit.h>
- #include <storage/Path.h>
- #include <storage/Entry.h>
- #include <stdlib.h>
- #include <unistd.h>
- #include "SDL_BeApp.h"
- #include "SDL_thread.h"
- #include "SDL_timer.h"
- #include "SDL_error.h"
- /* Flag to tell whether or not the Be application is active or not */
- int SDL_BeAppActive = 0;
- static SDL_Thread *SDL_AppThread = NULL;
- static int StartBeApp(void *unused)
- {
- BApplication *App;
- App = new BApplication("application/x-SDL-executable");
- App->Run();
- delete App;
- return(0);
- }
- /* Initialize the Be Application, if it's not already started */
- int SDL_InitBeApp(void)
- {
- /* Create the BApplication that handles appserver interaction */
- if ( SDL_BeAppActive <= 0 ) {
- SDL_AppThread = SDL_CreateThread(StartBeApp, NULL);
- if ( SDL_AppThread == NULL ) {
- SDL_SetError("Couldn't create BApplication thread");
- return(-1);
- }
- /* Check if we started from Terminal or Tracker... */
- /* Based on code posted to BeDevTalk by Marco Nelissen */
- char *cmd = getenv("_");
- if(!(cmd == NULL || strlen(cmd) < 7) &&
- (!strcmp(cmd + strlen(cmd) - 7 , "Tracker"))) {
- /* Change working to directory to that of executable */
- app_info info;
- if (B_OK == be_app->GetAppInfo(&info)) {
- entry_ref ref = info.ref;
- BEntry entry;
- if (B_OK == entry.SetTo(&ref)) {
- BPath path;
- if (B_OK == path.SetTo(&entry)) {
- if (B_OK == path.GetParent(&path)) {
- chdir(path.Path());
- }
- }
- }
- }
- } /* else started from Terminal */
- do {
- SDL_Delay(10);
- } while ( (be_app == NULL) || be_app->IsLaunching() );
- /* Mark the application active */
- SDL_BeAppActive = 0;
- }
- /* Increment the application reference count */
- ++SDL_BeAppActive;
- /* The app is running, and we're ready to go */
- return(0);
- }
- /* Quit the Be Application, if there's nothing left to do */
- void SDL_QuitBeApp(void)
- {
- /* Decrement the application reference count */
- --SDL_BeAppActive;
- /* If the reference count reached zero, clean up the app */
- if ( SDL_BeAppActive == 0 ) {
- if ( SDL_AppThread != NULL ) {
- if ( be_app != NULL ) { /* Not tested */
- be_app->PostMessage(B_QUIT_REQUESTED);
- }
- SDL_WaitThread(SDL_AppThread, NULL);
- SDL_AppThread = NULL;
- }
- /* be_app should now be NULL since be_app has quit */
- }
- }