From fb103e61bc527e7c71a67b28c1277db3d097de0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johan=20Hillerstr=C3=B6m?= <progr@mmer.nu>
Date: Sat, 21 Nov 2015 02:21:16 +0100
Subject: [PATCH] Read vibrato waveform type

---
 test/testdata.js | 1 +
 xm.js            | 1 +
 xmeffects.js     | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/test/testdata.js b/test/testdata.js
index 8157cd9..c8dd629 100644
--- a/test/testdata.js
+++ b/test/testdata.js
@@ -25,6 +25,7 @@ exports.resetXMData = function() {
     vibratopos: 0,
     vibratodepth: 1,
     vibratospeed: 1,
+    vibratotype: 0,
   });
   xm.songpats = [0];
   // 1 channel, 2 row blank pattern
diff --git a/xm.js b/xm.js
index cb9868e..6af8432 100644
--- a/xm.js
+++ b/xm.js
@@ -697,6 +697,7 @@ function load(arrayBuf) {
       vibratopos: 0,
       vibratodepth: 1,
       vibratospeed: 1,
+      vibratotype: 0,
     });
   }
   console.log("header len " + hlen);
diff --git a/xmeffects.js b/xmeffects.js
index 0e8a7f1..27d2eda 100644
--- a/xmeffects.js
+++ b/xmeffects.js
@@ -135,6 +135,9 @@ function eff_t0_e(ch, data) {  // extended effects!
     case 2:  // fine porta down
       ch.period += data;
       break;
+    case 4:  // set vibrato waveform
+      ch.vibratotype = data & 0x07;
+      break;
     case 5:  // finetune
       ch.fine = (data<<4) + data - 128;
       break;