1 files changed, 69 insertions, 0 deletions
diff --git a/src/generator.h b/src/generator.h
new file mode 100644
index 0000000..df90578
--- /dev/null
+++ b/src/generator.h
@@ -0,0 +1,69 @@
+#ifndef GENERATOR_H
+#define GENERATOR_H
+
+#include "adsr.h"
+#include "osc.h"
+#include "synth_engine.h"
+
+#define MAX_CMP 64
+
+enum osc_enum {
+  SIN,
+  SAW,
+  DIGISAW,
+  TRI,
+  SQR
+};
+
+enum adsr_type {
+  LINEAR,
+  CUBIC
+};
+
+enum target_enum {
+  OSC_FREQ,
+  OSC_AMP,
+  ADSR_AMP,
+  OUTPUT
+};
+
+// ints are:
+// negative if false
+// the id of the component if true
+typedef struct sound_node {
+  int osc;
+  enum osc_enum osc_type;
+  int lfo;
+  enum adsr_enum adsr_type;
+  int adsr;
+  float target_amp;
+  enum target_enum target;
+
+  struct sound_node ** children;
+  int n;
+} sound_node;
+
+struct generator {
+  // list of indexes for oscilators, lfos and adsrs
+  float osc[MAX_CMP];
+  float lfo[MAX_CMP];
+  float adsr[MAX_CMP];
+
+  // need to include some info about the wiring of the oscs lfos and adsrs
+  // e.g. :
+  //   adsr 0 -> osc 0 frequency
+  //   lfo 0  -> osc 0 frequency
+  //   lfo 1  -> lfo 0 frequency
+  //   osc 0  -> output
+
+  //o0-saw:l0-sin:l1-sin:a0-linear
+  //a0-o0/frequency:l0-o0/frequency:l1-l0/frequency:o0-1
+};
+
+int sound_tree_add_node(sound_node * root, const char * cmp);
+
+// needs to "play" the wiring defined in the struct
+// using sounds from `s` and the midi note `i`
+float generate(generator * g, synth_t * s, int i);
+
+#endif /* GENERATOR_H */