From 244ce870c3c747f11e33d889e85d4d634f481a12 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Sat, 28 Apr 2012 08:59:05 -0500
Subject: [PATCH] Updates jpgjs libary to the latest: component order fix

---
 external/jpgjs/jpg.js | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/external/jpgjs/jpg.js b/external/jpgjs/jpg.js
index dc8956ac0..103153d9d 100644
--- a/external/jpgjs/jpg.js
+++ b/external/jpgjs/jpg.js
@@ -637,7 +637,10 @@ var JpegImage = (function jpegImage() {
                   tableData[z] = data[offset++];
                 }
               } else if ((quantizationTableSpec >> 4) === 1) { //16 bit
-                  tableData[j] = readUint16();
+                for (j = 0; j < 64; j++) {
+                  var z = dctZigZag[j];
+                  tableData[z] = readUint16();
+                }
               } else
                 throw "DQT: invalid table spec";
               quantizationTables[quantizationTableSpec & 15] = tableData;
@@ -652,7 +655,8 @@ var JpegImage = (function jpegImage() {
             frame.precision = data[offset++];
             frame.scanLines = readUint16();
             frame.samplesPerLine = readUint16();
-            frame.components = [];
+            frame.components = {};
+            frame.componentsOrder = [];
             var componentsCount = data[offset++], componentId;
             var maxH = 0, maxV = 0;
             for (i = 0; i < componentsCount; i++) {
@@ -660,6 +664,7 @@ var JpegImage = (function jpegImage() {
               var h = data[offset + 1] >> 4;
               var v = data[offset + 1] & 15;
               var qId = data[offset + 2];
+              frame.componentsOrder.push(componentId);
               frame.components[componentId] = {
                 h: h,
                 v: v,
@@ -728,14 +733,13 @@ var JpegImage = (function jpegImage() {
       this.jfif = jfif;
       this.adobe = adobe;
       this.components = [];
-      for (var id in frame.components) {
-        if (frame.components.hasOwnProperty(id)) {
-          this.components.push({
-            lines: buildComponentData(frame, frame.components[id]),
-            scaleX: frame.components[id].h / frame.maxH,
-            scaleY: frame.components[id].v / frame.maxV
-          });
-        }
+      for (var i = 0; i < frame.componentsOrder.length; i++) {
+        var component = frame.components[frame.componentsOrder[i]];
+        this.components.push({
+          lines: buildComponentData(frame, component),
+          scaleX: component.h / frame.maxH,
+          scaleY: component.v / frame.maxV
+        });
       }
     },
     getData: function getData(width, height) {