From acbeceb2b3bbdad3102b2cb0c2dadbf8fbfee8a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luiz=20Am=C3=A9rico?= <luizamericop@gmail.com>
Date: Sun, 23 Dec 2018 20:30:40 -0300
Subject: [PATCH] Use a loop to copy png image data instead of Buffer.copy

---
 lib/image/png.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/image/png.js b/lib/image/png.js
index c61eb63..7338c9b 100644
--- a/lib/image/png.js
+++ b/lib/image/png.js
@@ -118,9 +118,9 @@ class PNGImage {
       let i = p = a = 0;
       const len = pixels.length;
       while (i < len) {
-        pixels.copy(imgData, p, i, i + colorCount);
-        p += colorCount;
-        i += colorCount;
+        for (let colorIndex = 0; colorIndex < colorCount; colorIndex++) {
+          imgData[p++] = pixels[i++];
+        }
         alphaChannel[a++] = pixels[i++];
       }