// 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);
}