From c161e1016a04566a56b4858ea43502fed88dcc7f Mon Sep 17 00:00:00 2001
From: gramanas <anastasis.gramm2@gmail.com>
Date: Thu, 20 Apr 2023 18:24:49 +0300
Subject: Add midi

---
 src/synth_engine.c | 43 +++++++++++++++++++++----------------------
 1 file changed, 21 insertions(+), 22 deletions(-)

(limited to 'src/synth_engine.c')

diff --git a/src/synth_engine.c b/src/synth_engine.c
index 6bd6bf6..56ab771 100644
--- a/src/synth_engine.c
+++ b/src/synth_engine.c
@@ -152,14 +152,11 @@ make_sample(unsigned long long phase, void *synthData, unsigned int sample_rate,
   //LFO!
   //if (synth->adsr.elapsed > SAMPLE_RATE / 2) synth->adsr.elapsed = 0;
 
-  if (synth->poly) {
-    int n = synth->notes_active;
-    for (int i = 0; i < n; i++) {
-      sample += (1.0 / n) * synth->gen[synth->geni](synth->freq[i] + synth->freq_offset, synth->freq_count[i], synth->x, sample_rate);
-    }
-  } else {
-      sample = synth->gen[synth->geni](synth->n.freq + synth->freq_offset, phase, synth->x, sample_rate);
-  }
+    /* int n = synth->actual_notes_active; */
+    /* for (int i = 0; i < n; i++) { */
+    /*   sample += (1.0 / n) * synth->gen[synth->geni](synth->actual_freq[i] + synth->freq_offset, synth->actual_freq_count[i], synth->x, sample_rate); */
+    /* } */
+  sample = synth->gen[synth->geni](synth->n.freq + synth->freq_offset, phase, synth->x, sample_rate);
 
   if (!viz && synth->filter) {
     // ALLL THE FILTERS
@@ -197,7 +194,7 @@ sound_gen(const void *inputBuffer, void *outputBuffer,
   (void) statusFlags;
   (void) inputBuffer;
 
-  float s;
+  float s = 0.0f;
   for( unsigned long i=0; i<framesPerBuffer; i++ ) {
     //get_portaudio_frame(outputBuffer, synth);
     if (!synth->active) {
@@ -205,29 +202,29 @@ sound_gen(const void *inputBuffer, void *outputBuffer,
       *out++ = 0.0f;
       continue;
     }
+
     if (adsr_amplitude(synth, synth->adsr.elapsed) == 0 && synth->n.noteOff != 0) {
-      //printf("SYNTH OPFF\n");
       synth->active = 0;
       *out++ = 0.0f;
       *out++ = 0.0f;
       continue;
     }
+
     s = make_sample(synth->n.elapsed, synth, SAMPLE_RATE, 0);
     *out++ = s;
     *out++ = s;
+
     synth->adsr.elapsed++;
     synth->n.elapsed++;
-    for (int j = 0; j < synth->notes_active; j++) {
-      synth->freq_count[j]++;
-    }
     if (!synth->multi) {
-      for (int j = 0; j < synth->notes_active; j++) {
-        if (synth->freq_count[j] >= (1.0 / synth->freq[i]) * SAMPLE_RATE) synth->freq_count[j] = 0;
-      }
       if (synth->n.elapsed >= (1.0 / synth->n.freq) * SAMPLE_RATE) synth->n.elapsed = 0;
     } else {
       
     }
+    synth->viz.wi >= 1000199 ? synth->viz.wi = 0 : synth->viz.wi++;
+    synth->viz.wave[synth->viz.wi] = s;
+    synth->viz.wi >= 1000199 ? synth->viz.wi = 0 : synth->viz.wi++;
+    synth->viz.wave[synth->viz.wi] = s;
   }
 
   return paContinue;
@@ -239,12 +236,6 @@ init_synth(synth_t * synth)
   synth->freq_offset = 0;
   synth->gain = 1;
   synth->x = 1;
-
-  synth->notes_active = 0;
-  for (int i = 0; i<100;i++) {
-    synth->freq[i] = 0;
-    synth->freq_count[i] = 0;
-  }
   
   synth->n.freq    = 0; 
   synth->n.noteOn  = 0; 
@@ -277,8 +268,16 @@ init_synth(synth_t * synth)
   synth->active = 0;
   
   synth->viz.sample_rate_divider = 1;
+  synth->viz.wi = 0;
 
   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);
 }
+
+void
+free_synth(synth_t * synth)
+{
+  free_bw_low_pass(synth->fff);
+  free_bw_band_stop(synth->fff2);
+}
-- 
cgit v1.2.3