-Working on JACK transport support

src/buffers.hxx

@@ -22,9 +22,9 @@ class Buffers
     jack_nframes_t         nframes;
     jack_nframes_t         samplerate;
     
-    jack_nframes_t         transportFrame;
+    jack_nframes_t          transportFrame;
-    jack_position_t        transportPosition;
+    jack_position_t*        transportPosition;
-    jack_transport_state_t transportState;
+    jack_transport_state_t* transportState;
     
 };
 

src/jack.cxx

@@ -49,6 +49,8 @@ Jack::Jack()
   
   
   loopers.push_back( new Looper() );
+  
+  jack_transport_start(client);
 }
 
 
@@ -103,8 +105,8 @@ int Jack::timebase(jack_transport_state_t state,
 {
   // fill buffers with data, then pass to timeManager
   buffers.transportFrame    = jack_get_current_transport_frame(client);
-  buffers.transportPosition = *pos;
+  buffers.transportPosition = pos;
-  buffers.transportState    = state;
+  buffers.transportState    =&state;
   
   // update "time" from JACK master, or write master?
   timeManager.process( &buffers );

src/timemanager.hxx

@@ -12,25 +12,47 @@ using namespace std;
 class TimeManager
 {
   public:
-    TimeManager()
+    TimeManager():
+        oldBeat(0)
     {
     }
     
     void process(Buffers* buffers)
     {
-      float bpm = 120;
+      /*
-      int framesPerBeat = (int) samplerate / (bpm / 60.0);
+      float bpm = 160;
+      int framesPerBeat = (int) buffers->samplerate / (bpm / 60.0);
       
-      // divide by zero errors!
+      // time signature?
-      if ( framesPerBeat > 0 )
+      buffers->transportPosition->beats_per_bar = 4;
+      buffers->transportPosition->beat_type     = 4;
+      
+      int beatFloat = buffers->transportFrame / framesPerBeat;
+      //int beat = int(beat);
+      
+      //int tick = int( (beatFloat - beat) * 1920 );
+      
+      if ( beat != oldBeat )
       {
-        int newBeat = buffers->transportFrame / framesPerBeat;
+        if ( beat % (int)buffers->transportPosition->beats_per_bar == 0 )
+          buffers->transportPosition->bar++;
+        
+        oldBeat = beat;
       }
-      //cout << buffers->transportPosition.frame << endl;
+      
+      buffers->transportPosition->valid = JackPositionBBT;
+      buffers->transportPosition->tick += (buffers->nframes / buffers->samplerate);
+      
+      buffers->transportPosition->beat = beat % 4;
+      buffers->transportPosition->tick = 0;
+      
+      buffers->transportPosition->ticks_per_beat = 1920;
+      buffers->transportPosition->beats_per_minute = bpm;
+      */
     }
   
   private:
-    int samplerate;
+    int oldBeat;
     
     // list of Observers of this TimeManager Subject, "beat", "bar" updates?
     /*