From f32c2fa06bb63ed796fc9c5880d1b284abaf2824 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Mon, 27 Dec 2021 15:22:01 -0500
Subject: [PATCH] early implementation of global pitch

apparently this requires a rewrite of the pitch logic...
---
 src/engine/playback.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index f68eefb17..252abe749 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -502,6 +502,7 @@ void DivEngine::processRow(int i, bool afterDelay) {
           if (chan[i].pitch<-128) chan[i].pitch=-128;
           if (chan[i].pitch>127) chan[i].pitch=127;
         }
+        chan[i].pitch+=globalPitch;
         dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
         break;
       case 0xea: // legato mode
@@ -520,6 +521,13 @@ void DivEngine::processRow(int i, bool afterDelay) {
         extValue=effectVal;
         extValuePresent=true;
         break;
+      case 0xef: // global pitch
+        globalPitch+=(signed char)(effectVal-0x80)*120;
+        printf("setting global pitch to %d\n",globalPitch);
+        for (int i=0; i<chans; i++) {
+          chan[i].pitch+=globalPitch;
+        }
+        break;
     }
   }