From 22dd555228f523904cce6b31a4d76a9952b92c96 Mon Sep 17 00:00:00 2001
From: Andy Sloane <andy@a1k0n.net>
Date: Sun, 1 Nov 2015 21:50:49 -0800
Subject: [PATCH] zoom scopes out 4x; looks way better

---
 xm.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xm.js b/xm.js
index 123d1b6..6622528 100644
--- a/xm.js
+++ b/xm.js
@@ -640,10 +640,10 @@ function audio_cb(e) {
     var scopes = undefined;
     for (var j = 0; j < nchan; j++) {
       var scope;
-      if (tickduration >= _scope_width) {
+      if (tickduration >= 4*_scope_width) {
         scope = new Float32Array(_scope_width);
         for (var k = 0; k < _scope_width; k++) {
-          scope[k] = -dataL[offset+k] - dataR[offset+k];
+          scope[k] = -dataL[offset+k*4] - dataR[offset+k*4];
         }
       }
 
@@ -651,9 +651,9 @@ function audio_cb(e) {
           channelinfo[j], offset, offset + tickduration, dataL, dataR) /
         tickduration;
 
-      if (tickduration >= _scope_width) {
+      if (tickduration >= 4*_scope_width) {
         for (var k = 0; k < _scope_width; k++) {
-          scope[k] += dataL[offset+k] + dataR[offset+k];
+          scope[k] += dataL[offset+k*4] + dataR[offset+k*4];
         }
         if (scopes == undefined) scopes = [];
         scopes.push(scope);