Midi also plays notes now

1 files changed, 46 insertions, 0 deletions

diff --git a/src/synth_engine.c b/src/synth_engine.c
index 56ab771..11586da 100644
--- a/src/synth_engine.c
+++ b/src/synth_engine.c
@@ -2,6 +2,8 @@
 #include "lowpass.h"
 #include "filter.h"
 
+#include <string.h>
+
 /* 1d convolution */
 void
 convole(float *signal, float *filter, size_t signal_size, size_t filter_size, float *out) {
@@ -230,6 +232,13 @@ sound_gen(const void *inputBuffer, void *outputBuffer,
   return paContinue;
 }
 
+
+static void
+StreamFinished( void* synthData )
+{
+  synth_t *synth = (synth_t *) synthData;
+}
+
 void
 init_synth(synth_t * synth)
 {
@@ -273,11 +282,48 @@ init_synth(synth_t * synth)
   LowPass_Init();
   synth->fff = create_bw_low_pass_filter(2, SAMPLE_RATE, 400);
   synth->fff2 = create_bw_band_stop_filter(8, SAMPLE_RATE, 15000, 22000);
+
+  Pa_Initialize();
+
+  int i;
+  const   PaDeviceInfo *deviceInfo;
+  for( i=0; i< Pa_GetDeviceCount(); i++ ) {
+    deviceInfo = Pa_GetDeviceInfo( i );
+    //if (!strcmp("HyperX Cloud II Wireless: USB Audio (hw:0,0)", deviceInfo->name)) break;
+    printf("dev: %s || %f\n", deviceInfo->name, deviceInfo->defaultSampleRate);
+    if (!strcmp("HDA Intel PCH: ALC1220 Analog (hw:0,0)", deviceInfo->name)) break;
+  }
+
+
+  PaStreamParameters outputParameters;
+  outputParameters.device = i; Pa_GetDefaultOutputDevice(); /* default output device */
+  printf("-------\nSelected device: %s\n-------\n", Pa_GetDeviceInfo(outputParameters.device)->name);
+  outputParameters.channelCount = 2;       /* stereo output */
+  outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
+  outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
+  outputParameters.hostApiSpecificStreamInfo = NULL;
+
+  Pa_OpenStream(&(synth->stream),
+                NULL, /* no input */
+                &outputParameters,
+                SAMPLE_RATE,
+                FRAMES_PER_BUFFER,
+                paClipOff,      /* we won't output out of range samples so don't bother clipping them */
+                sound_gen,
+                synth );
+
+  Pa_SetStreamFinishedCallback(synth->stream, &StreamFinished);
+  Pa_StartStream(synth->stream);
 }
 
 void
 free_synth(synth_t * synth)
 {
+  Pa_StopStream( synth->stream );
+  Pa_CloseStream( synth->stream );
+  Pa_Terminate();
+
+
   free_bw_low_pass(synth->fff);
   free_bw_band_stop(synth->fff2);
 }