From 1135ca5fb4de6833befce1d52d9483d2b4fa91f2 Mon Sep 17 00:00:00 2001
From: j433866 <j433866@gmail.com>
Date: Tue, 2 Jul 2019 16:31:26 +0100
Subject: [PATCH] Remove duplicate function. Fix reading QR codes with
 transparent backgrounds

---
 src/core/Utils.mjs      | 16 ----------------
 src/core/lib/QRCode.mjs |  2 ++
 2 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/src/core/Utils.mjs b/src/core/Utils.mjs
index 6499e936..fed67553 100755
--- a/src/core/Utils.mjs
+++ b/src/core/Utils.mjs
@@ -594,22 +594,6 @@ class Utils {
     }
 
 
-    /**
-     * Converts a string to an ArrayBuffer.
-     *
-     * @param {string} string
-     */
-    static strToArrayBuffer(string) {
-        const arrayBuffer = new ArrayBuffer(string.length * 2);
-        const arrayBufferView = new Uint8Array(arrayBuffer);
-        for (let i = 0; i < string.length; i++) {
-            arrayBufferView[i] = string.charCodeAt(i);
-        }
-
-        return arrayBuffer;
-    }
-
-
     /**
      * Parses CSV data and returns it as a two dimensional array or strings.
      *
diff --git a/src/core/lib/QRCode.mjs b/src/core/lib/QRCode.mjs
index 709aafa2..93b60024 100644
--- a/src/core/lib/QRCode.mjs
+++ b/src/core/lib/QRCode.mjs
@@ -33,6 +33,8 @@ export async function parseQrCode(input, normalise) {
             image.background(0xFFFFFFFF);
             image.normalize();
             image.greyscale();
+            image = await image.getBufferAsync(jimp.MIME_JPEG);
+            image = await jimp.read(image);
         }
     } catch (err) {
         throw new OperationError(`Error normalising iamge. (${err})`);