int main(int argc, char** argv)
{
ga_Format fmt;
ga_Device* dev;
gc_int16* buf;
gc_int32 numSamples;
gc_int32 sampleSize;
gc_int32 numToQueue;
gc_int32 i;
gc_int16 sample;
gc_float32 pan = 1.0f;
gc_float32 t = 0.0f;
/* Initialize library + device */
gc_initialize(0);
memset(&fmt, 0, sizeof(ga_Format));
fmt.bitsPerSample = 16;
fmt.numChannels = 2;
fmt.sampleRate = 44100;
numSamples = 2048;
sampleSize = ga_format_sampleSize(&fmt);
dev = ga_device_open(GA_DEVICE_TYPE_DEFAULT, 2, 2048, &fmt);
if(!dev)
return 1;
/* Allocate buffer */
buf = (gc_int16*)malloc(numSamples * sampleSize);
/* Infinite mix loop */
while(1)
{
numToQueue = ga_device_check(dev);
while(numToQueue--)
{
for(i = 0; i < numSamples * 2; i = i + 2)
{
sample = (gc_int16)(sin(t) * 32768);
sample = (sample > -32768 ? (sample < 32767 ? sample : 32767) : -32768);
pan = (gc_float32)sin(t / 300) / 2.0f + 0.5f;
buf[i] = (gc_int16)(sample * pan);
buf[i + 1] = (gc_int16)(sample * (1.0f - pan));
t = t + 0.03f;
if(t > 3.14159265f)
t -= 3.14159265f;
}
ga_device_queue(dev, (char*)buf);
}
}
/* Clean up device + library */
ga_device_close(dev);
gc_shutdown();
/* Free buffer */
free(buf);
return 0;
}
void gau_manager_destroy(gau_Manager* in_mgr)
{
if(in_mgr->threadPolicy == GAU_THREAD_POLICY_MULTI)
{
in_mgr->killThreads = 1;
gc_thread_join(in_mgr->streamThread);
gc_thread_join(in_mgr->mixThread);
}
/* Clean up mixer and stream manager */
ga_stream_manager_destroy(in_mgr->streamMgr);
ga_mixer_destroy(in_mgr->mixer);
gcX_ops->freeFunc(in_mgr->mixBuffer);
ga_device_close(in_mgr->device);
gcX_ops->freeFunc(in_mgr);
}