command stream arps

src/engine/cmdStream.cpp

@@ -18,6 +18,7 @@
  */
 
 #include "cmdStream.h"
+#include "dispatch.h"
 #include "engine.h"
 #include "../ta-log.h"
 
@@ -58,7 +59,7 @@ bool DivCSPlayer::tick() {
 
       if (next<0xb3) { // note
         e->dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,(int)next-60));
-        logV("%d: note on (%d)",i,(int)next-60);
+        chan[i].note=(int)next-60;
         chan[i].vibratoPos=0;
       } else if (next>=0xd0 && next<=0xdf) {
         command=fastCmds[next&15];
@@ -156,6 +157,7 @@ bool DivCSPlayer::tick() {
           case DIV_CMD_HINT_VIBRATO_RANGE:
           case DIV_CMD_HINT_VIBRATO_SHAPE:
           case DIV_CMD_HINT_VOLUME:
+          case DIV_CMD_HINT_ARP_TIME:
             arg0=(unsigned char)stream.readC();
             break;
           case DIV_CMD_HINT_PITCH:
@@ -299,6 +301,12 @@ bool DivCSPlayer::tick() {
             chan[i].note=arg0;
             e->dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
             break;
+          case DIV_CMD_HINT_ARPEGGIO:
+            chan[i].arp=(((unsigned char)arg0)<<4)|(arg1&15);
+            break;
+          case DIV_CMD_HINT_ARP_TIME:
+            arpSpeed=arg0;
+            break;
           default: // dispatch it
             e->dispatchCmd(DivCommand((DivDispatchCmds)command,i,arg0,arg1));
             break;
@@ -331,6 +339,25 @@ bool DivCSPlayer::tick() {
     if (chan[i].portaSpeed) {
       e->dispatchCmd(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed*(e->song.linearPitch==2?e->song.pitchSlideSpeed:1),chan[i].portaTarget));
     }
+    if (chan[i].arp && !chan[i].portaSpeed) {
+      if (chan[i].arpTicks==0) {
+        switch (chan[i].arpStage) {
+          case 0:
+            e->dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
+            break;
+          case 1:
+            e->dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp>>4)));
+            break;
+          case 2:
+            e->dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp&15)));
+            break;
+        }
+        chan[i].arpStage++;
+        if (chan[i].arpStage>=3) chan[i].arpStage=0;
+        chan[i].arpTicks=arpSpeed;
+      }
+      chan[i].arpTicks--;
+    }
   }
 
   return ticked;
@@ -370,6 +397,8 @@ bool DivCSPlayer::init() {
     vibTable[i]=127*sin(((double)i/64.0)*(2*M_PI));
   }
 
+  arpSpeed=1;
+
   return true;
 }
 

src/engine/cmdStream.h

@@ -73,6 +73,7 @@ class DivCSPlayer {
   DivCSChannelState chan[DIV_MAX_CHANS];
   unsigned char fastDelays[16];
   unsigned char fastCmds[16];
+  unsigned char arpSpeed;
 
   short vibTable[64];
   public:

src/engine/dispatch.h

@@ -229,6 +229,8 @@ enum DivDispatchCmds {
   DIV_CMD_ES5506_ENVELOPE_K2RAMP, // (ramp, slowdown)
   DIV_CMD_ES5506_PAUSE, // (value)
 
+  DIV_CMD_HINT_ARP_TIME, // (value)
+
   DIV_ALWAYS_SET_VOLUME, // () -> alwaysSetVol
 
   DIV_CMD_MAX

src/engine/engine.cpp

@@ -418,6 +418,7 @@ void writePackedCommandValues(SafeWriter* w, const DivCommand& c) {
     case DIV_CMD_AMIGA_PM:
     case DIV_CMD_MACRO_OFF:
     case DIV_CMD_MACRO_ON:
+    case DIV_CMD_HINT_ARP_TIME:
       w->writeC(1); // length
       w->writeC(c.value);
       break;

src/engine/playback.cpp

@@ -229,6 +229,8 @@ const char* cmdName[]={
   "ES5506_ENVELOPE_K2RAMP",
   "ES5506_PAUSE",
 
+  "HINT_ARP_TIME",
+
   "ALWAYS_SET_VOLUME"
 };
 
@@ -765,6 +767,7 @@ void DivEngine::processRow(int i, bool afterDelay) {
       case 0xe0: // arp speed
         if (effectVal>0) {
           curSubSong->arpLen=effectVal;
+          dispatchCmd(DivCommand(DIV_CMD_HINT_ARP_TIME,i,curSubSong->arpLen));
         }
         break;
       case 0xe1: // portamento up