// Pause extern "C" void Java_org_libsdl_app_SDLActivity_nativePause( JNIEnv* env, jclass cls) { if (Android_Window) { /* Signal the pause semaphore so the event loop knows to pause and (optionally) block itself */ if (!SDL_SemValue(Android_PauseSem)) SDL_SemPost(Android_PauseSem); SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0); SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0); } __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativePause()"); SDL_SendAppEvent(SDL_APP_WILLENTERBACKGROUND); SDL_SendAppEvent(SDL_APP_DIDENTERBACKGROUND); }
// Quit extern "C" void Java_org_libsdl_app_SDLActivity_nativeQuit( JNIEnv* env, jclass cls) { // Inject a SDL_QUIT event SDL_SendQuit(); SDL_SendAppEvent(SDL_APP_TERMINATING); }
// Resume extern "C" void Java_org_libsdl_app_SDLActivity_nativeResume( JNIEnv* env, jclass cls) { __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativeResume()"); SDL_SendAppEvent(SDL_APP_WILLENTERFOREGROUND); SDL_SendAppEvent(SDL_APP_DIDENTERFOREGROUND); if (Android_Window) { /* Signal the resume semaphore so the event loop knows to resume and restore the GL Context * We can't restore the GL Context here because it needs to be done on the SDL main thread * and this function will be called from the Java thread instead. */ if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem); SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0); SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0); } }
/* Public functions */ static int SDL_QuitInit_Internal(void) { #ifdef HAVE_SIGACTION struct sigaction action; sigaction(SIGINT, NULL, &action); #ifdef HAVE_SA_SIGACTION if ( action.sa_handler == SIG_DFL && (void (*)(int))action.sa_sigaction == SIG_DFL ) { #else if ( action.sa_handler == SIG_DFL ) { #endif action.sa_handler = SDL_HandleSIG; sigaction(SIGINT, &action, NULL); } sigaction(SIGTERM, NULL, &action); #ifdef HAVE_SA_SIGACTION if ( action.sa_handler == SIG_DFL && (void (*)(int))action.sa_sigaction == SIG_DFL ) { #else if ( action.sa_handler == SIG_DFL ) { #endif action.sa_handler = SDL_HandleSIG; sigaction(SIGTERM, &action, NULL); } #elif HAVE_SIGNAL_H void (*ohandler) (int); /* Both SIGINT and SIGTERM are translated into quit interrupts */ ohandler = signal(SIGINT, SDL_HandleSIG); if (ohandler != SIG_DFL) signal(SIGINT, ohandler); ohandler = signal(SIGTERM, SDL_HandleSIG); if (ohandler != SIG_DFL) signal(SIGTERM, ohandler); #endif /* HAVE_SIGNAL_H */ /* That's it! */ return 0; } int SDL_QuitInit(void) { if (!SDL_GetHintBoolean(SDL_HINT_NO_SIGNAL_HANDLERS, SDL_FALSE)) { return SDL_QuitInit_Internal(); } return 0; } static void SDL_QuitQuit_Internal(void) { #ifdef HAVE_SIGACTION struct sigaction action; sigaction(SIGINT, NULL, &action); if ( action.sa_handler == SDL_HandleSIG ) { action.sa_handler = SIG_DFL; sigaction(SIGINT, &action, NULL); } sigaction(SIGTERM, NULL, &action); if ( action.sa_handler == SDL_HandleSIG ) { action.sa_handler = SIG_DFL; sigaction(SIGTERM, &action, NULL); } #elif HAVE_SIGNAL_H void (*ohandler) (int); ohandler = signal(SIGINT, SIG_DFL); if (ohandler != SDL_HandleSIG) signal(SIGINT, ohandler); ohandler = signal(SIGTERM, SIG_DFL); if (ohandler != SDL_HandleSIG) signal(SIGTERM, ohandler); #endif /* HAVE_SIGNAL_H */ } void SDL_QuitQuit(void) { if (!disable_signals) { SDL_QuitQuit_Internal(); } } /* This function returns 1 if it's okay to close the application window */ int SDL_SendQuit(void) { send_quit_pending = SDL_FALSE; return SDL_SendAppEvent(SDL_QUIT); } void SDL_SendPendingQuit(void) { if (send_quit_pending) { SDL_SendQuit(); SDL_assert(!send_quit_pending); } }
// Low memory extern "C" void Java_org_libsdl_app_SDLActivity_nativeLowMemory( JNIEnv* env, jclass cls) { SDL_SendAppEvent(SDL_APP_LOWMEMORY); }