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Fix the 3DS crash when closing

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For whatever reason, the 3DS *really* doesn't like it when I do all
the audio mixing in the callback function. Instead, it seems I have
to use a dedicated thread.
This commit is contained in:
Clownacy 2020-10-11 21:16:47 +01:00
parent 6df224400c
commit 5b4778fb06
1 changed files with 37 additions and 4 deletions
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41
src/Backends/Audio/SoftwareMixer/3DS.cpp
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@ -22,6 +22,11 @@ static bool current_dsp_buffer;
static LightLock mixer_mutex; static LightLock mixer_mutex;
static LightLock organya_mutex; static LightLock organya_mutex;
static LightEvent audio_thread_event;
static Thread audio_thread;
static bool audio_thread_die;
static void FullBuffer(short *stream, size_t frames_total) static void FullBuffer(short *stream, size_t frames_total)
{ {
size_t frames_done = 0; size_t frames_done = 0;
@ -56,13 +61,25 @@ static void Callback(void *user_data)
{ {
(void)user_data; (void)user_data;
if (dsp_buffers[current_dsp_buffer].status == NDSP_WBUF_DONE) LightEvent_Signal(&audio_thread_event);
}
static void AudioThread(void *user_data)
{
(void)user_data;
while (!audio_thread_die)
{ {
FullBuffer(dsp_buffers[current_dsp_buffer].data_pcm16, dsp_buffers[current_dsp_buffer].nsamples); if (dsp_buffers[current_dsp_buffer].status == NDSP_WBUF_DONE)
{
FullBuffer(dsp_buffers[current_dsp_buffer].data_pcm16, dsp_buffers[current_dsp_buffer].nsamples);
ndspChnWaveBufAdd(0, &dsp_buffers[current_dsp_buffer]); ndspChnWaveBufAdd(0, &dsp_buffers[current_dsp_buffer]);
current_dsp_buffer = !current_dsp_buffer; current_dsp_buffer = !current_dsp_buffer;
}
LightEvent_Wait(&audio_thread_event);
} }
} }
@ -110,6 +127,12 @@ unsigned long SoftwareMixerBackend_Init(void (*callback)(long *stream, size_t fr
LightLock_Init(&mixer_mutex); LightLock_Init(&mixer_mutex);
LightLock_Init(&organya_mutex); LightLock_Init(&organya_mutex);
LightEvent_Init(&audio_thread_event, RESET_ONESHOT);
audio_thread_die = false;
audio_thread = threadCreate(AudioThread, NULL, 32 * 1024, 0x18, -1, false);
return SAMPLE_RATE; return SAMPLE_RATE;
} }
else else
@ -129,6 +152,16 @@ unsigned long SoftwareMixerBackend_Init(void (*callback)(long *stream, size_t fr
void SoftwareMixerBackend_Deinit(void) void SoftwareMixerBackend_Deinit(void)
{ {
ndspSetCallback(NULL, NULL);
// Kill audio thread
audio_thread_die = true;
LightEvent_Signal(&audio_thread_event);
threadJoin(audio_thread, UINT64_MAX);
threadFree(audio_thread);
ndspChnReset(0);
ndspExit(); ndspExit();
linearFree(stream_buffer); linearFree(stream_buffer);