From 500b9a07b93d6cd3e771edc5698e06d163da60f1 Mon Sep 17 00:00:00 2001
From: grm <grm@eyesin.space>
Date: Sat, 22 Feb 2025 02:36:27 +0200
Subject: a year of changes (web, better soundcard handling, biquad)

---
 src/synth_engine.h | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

(limited to 'src/synth_engine.h')

diff --git a/src/synth_engine.h b/src/synth_engine.h
index 3b0b238..5ff7d8d 100644
--- a/src/synth_engine.h
+++ b/src/synth_engine.h
@@ -64,6 +64,8 @@ typedef struct {
   int tmp_index;
 } synth_viz;
 
+struct midi_t;
+
 typedef struct {
   PaStream *stream;
 
@@ -71,7 +73,7 @@ typedef struct {
 
   cc_t * ccs[128];
   int cci;
-  
+
   cc_t cc_pitch;
   cc_t cc_cutoff;
   cc_t cc_resonance;
@@ -83,7 +85,15 @@ typedef struct {
   cc_t cc_adsr_s;
   cc_t cc_adsr_r;
   cc_t cc_gain;
-  
+
+  cc_t cc_f_adsr_a;
+  cc_t cc_f_adsr_peak;
+  cc_t cc_f_adsr_d;
+  cc_t cc_f_adsr_s;
+  cc_t cc_f_adsr_r;
+
+  int autogain;
+
   float x;
 
   midi_note_t midi_note[MIDI_NOTES];
@@ -91,6 +101,7 @@ typedef struct {
   int midi_active_n;
 
   adsr_t adsr;
+  adsr_t f_adsr;
 
   lfo_t lfo;
 
@@ -102,8 +113,12 @@ typedef struct {
   cc_t cc_del_time;
   cc_t cc_del_feedback;
   unsigned long long counter;
-  
+
+  int f_adsr_enabled;
   int filter;
+  int biquad;
+  char biquad_type;
+
   int clamp;
 
   int modifiers[16];
@@ -117,11 +132,21 @@ typedef struct {
 
   int active;
   int sound_active;
-  
+
+  int soundcard_id;
+  int midi_device_id;
+
   synth_viz viz;
+
+  struct midi_t * midi;
 } synth_t;
 
 synth_t * init_synth();
-void free_synth(synth_t * synth);
+void free_synth(synth_t *synth);
+void change_soundcard(synth_t *synth);
+void change_midi_device(synth_t *synth);
+
+int save_synth(synth_t *synth, const char *path);
+int load_synth(synth_t *synth, const char *path);
 
 #endif /* SYNTH_ENGINE_H */
-- 
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