static void audio_deactivate(void)
{
gui_data.sndbuf_status = 3;
gui_data.sndbuf = 0;
reset_sound ();
clear_sound_buffers();
audio_event_reset();
}
void reset_sound (void) {
clear_sound_buffers();
}
int init_sound (void)
{
/* If setup_sound wasn't called or didn't complete successfully. */
if (!ppb_audio_interface) {
write_log("init_sound called, but audio not set up yet.\n");
return 0;
}
/* If sound is set to none (0) or interrupts (1). */
if (currprefs.produce_sound <= 1) {
write_log("init_sound called, but UAE is configured not to produce"
" sound.\n");
return 0;
}
PP_AudioSampleRate sample_rate = ppb_audio_config_interface->
RecommendSampleRate(pp_instance);
uint32_t frame_count = ppb_audio_config_interface->
RecommendSampleFrameCount(pp_instance,
sample_rate,
sample_rate * currprefs.sound_latency / 1000);
audio_config = ppb_audio_config_interface->
CreateStereo16Bit(pp_instance,
sample_rate,
frame_count);
if (!audio_config) {
write_log("Could not create Pepper audio config.\n");
return 0;
}
/* Adjust preferences to reflect what the underlying system gave us. */
if (!audio_config_is_ok(audio_config)) {
write_log("Pepper AudioConfig failed.\n");
return 0;
}
adjust_prefs(audio_config);
audio_resource = ppb_audio_interface->Create(
pp_instance,
audio_config,
sound_callback,
0 /* user_data */);
if (!audio_resource) {
write_log("Could not create a Pepper audio resource.\n");
return 0;
}
paula_sndbufsize = frame_count * 2 /* stereo */ * 2 /* 16-bit */;
paula_sndbufpt = paula_sndbuffer = malloc(paula_sndbufsize);
paula_sndbuffer_front_buffer = malloc(paula_sndbufsize);
memset(paula_sndbuffer_front_buffer, 0, paula_sndbufsize);
clear_sound_buffers();
#ifdef DRIVESOUND
driveclick_reset();
#endif
if (!ppb_audio_interface->StartPlayback(audio_resource)) {
write_log("Could not start Pepper audio playback.\n");
return 0;
}
return 1;
}
