Fixes for portamento.

doc/enable_sysex.url

@@ -0,0 +1 @@
+https://discourse.zynthian.org/t/receive-sysex-data/4825/3

doc/porta.url

@@ -0,0 +1 @@
+https://github.com/jpcima/dexed/commits/portamento-wip

src/dexed.cpp

@@ -91,6 +91,7 @@ Dexed::Dexed(double rate) : lvtk::Synth<DexedVoice, Dexed>(p_n_ports, p_midi_in)
   controllers.values_[kControllerPitch] = 0x2000;
   controllers.values_[kControllerPitchRange] = 0;
   controllers.values_[kControllerPitchStep] = 0;
+  controllers.values_[kControllerPortamentoGlissando] = 0;
   controllers.modwheel_cc = 0;
   controllers.foot_cc = 0;
   controllers.breath_cc = 0;
@@ -761,7 +762,7 @@ void Dexed::setPortamentoMode(uint8_t portamento_mode, uint8_t portamento_glissa
   controllers.portamento_cc = portamento_time;
   controllers.portamento_enable_cc = portamento_mode > 63;
 
-  if (portamento_mode > 63 && portamento_time > 0)
+  if (portamento_time > 0)
     controllers.portamento_enable_cc = true;
   else
     controllers.portamento_enable_cc = false;
@@ -799,7 +800,7 @@ TRACE("pitch=%d, velo=%d\n",pitch,velo);
             voices[note].porta = porta;
             voices[note].sustained = sustain;
             voices[note].keydown = true;
-            voices[note].dx7_note->init(data, pitch, velo, previousKeyDown, porta);
+            voices[note].dx7_note->init(data, pitch, velo, previousKeyDown, porta, &controllers);
             if ( data[136] )
                 voices[note].dx7_note->oscSync();
             break;

src/msfa/dx7note.cc

@@ -152,7 +152,7 @@ Dx7Note::Dx7Note() {
     }
 }
 
-void Dx7Note::init(const uint8_t patch[156], int midinote, int velocity, int srcnote, int porta) {
+void Dx7Note::init(const uint8_t patch[156], int midinote, int velocity, int srcnote, int porta, const Controllers *ctrls) {
     int rates[4];
     int levels[4];
     for (int op = 0; op < 6; op++) {
@@ -197,7 +197,7 @@ void Dx7Note::init(const uint8_t patch[156], int midinote, int velocity, int src
     pitchmodsens_ = pitchmodsenstab[patch[143] & 7];
     ampmoddepth_ = (patch[140] * 165) >> 6;
     porta_rateindex_ = (porta < 128) ? porta : 127;
-    porta_gliss_ = patch[68];
+    porta_gliss_ = ctrls->values_[kControllerPortamentoGlissando];
 }
 
 void Dx7Note::compute(int32_t *buf, int32_t lfo_val, int32_t lfo_delay, const Controllers *ctrls) {

src/msfa/dx7note.h

@@ -37,7 +37,7 @@ struct VoiceStatus {
 class Dx7Note {
 public:
     Dx7Note();
-    void init(const uint8_t patch[156], int midinote, int velocity, int srcnote, int porta);
+    void init(const uint8_t patch[156], int midinote, int velocity, int srcnote, int porta, const Controllers *ctrls);
     
     // Note: this _adds_ to the buffer. Interesting question whether it's
     // worth it...