earliest playback

no sound, just terminal output

src/engine/engine.h

@@ -1,6 +1,9 @@
+#ifndef _ENGINE_H
+#define _ENGINE_H
 #include "song.h"
 #include "dispatch.h"
 #include "../audio/taAudio.h"
+#include "blip_buf.h"
 
 struct DivChannelState {
   std::vector<DivDelayedCommand> delayed;
@@ -18,10 +21,19 @@ class DivEngine {
   int chans;
   bool playing;
   bool speedAB;
-  int ticks, curRow, curOrder;
+  int ticks, cycles, curRow, curOrder;
   std::vector<DivChannelState> chan;
 
+  blip_buffer_t* bb[2];
+  short temp[2], prevSample[2];
+  short* bbOut[2];
+
+  void nextOrder();
+  void nextRow();
+  void nextTick();
+
   public:
+    void nextBuf(float** in, float** out, int inChans, int outChans, unsigned int size);
     // load a .dmf.
     bool load(void* f, size_t length);
     // save as .dmf.
@@ -31,5 +43,17 @@ class DivEngine {
     void play();
 
     // initialize the engine.
-    bool init();    
+    bool init();
+
+    DivEngine():
+      chans(0),
+      playing(false),
+      speedAB(false),
+      ticks(0),
+      cycles(0),
+      curRow(-1),
+      curOrder(0),
+      temp{0,0},
+      prevSample{0,0} {}
 };
+#endif