@@ -55,6 +55,7 @@ static struct SDLAudioState {
SDL_mutex *mutex;
SDL_sem *sem;
int initialized;
+ bool driver_created;
} glob_sdl;
typedef struct SDLAudioState SDLAudioState;
@@ -393,6 +394,10 @@ static int sdl_ctl_out (HWVoiceOut *hw, int cmd, ...)
static void *sdl_audio_init (void)
{
SDLAudioState *s = &glob_sdl;
+ if (s->driver_created) {
+ sdl_logerr("Can't create multiple sdl backends\n");
+ return NULL;
+ }
if (SDL_InitSubSystem (SDL_INIT_AUDIO)) {
sdl_logerr ("SDL failed to initialize audio subsystem\n");
@@ -414,6 +419,7 @@ static void *sdl_audio_init (void)
return NULL;
}
+ s->driver_created = true;
return s;
}
@@ -424,6 +430,7 @@ static void sdl_audio_fini (void *opaque)
SDL_DestroySemaphore (s->sem);
SDL_DestroyMutex (s->mutex);
SDL_QuitSubSystem (SDL_INIT_AUDIO);
+ s->driver_created = false;
}
static struct audio_option sdl_options[] = {
Since SDL uses a lot of global data, we can't create independent instances of sdl audio backend. Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com> --- audio/sdlaudio.c | 7 +++++++ 1 file changed, 7 insertions(+)