From 80304b69761910a43a1281b042a424b237ee7681 Mon Sep 17 00:00:00 2001
From: Kalervo Kujala <kkujala@>
Date: Mon, 5 Sep 2011 23:11:48 +0300
Subject: [PATCH 1/2] Fix a bug and speed up graycs_getRgbBuffer.

An rgbBuffer was created which was three times as big as intended. It also
caused that the function was very slow when rendering cable.pdf. Which led
to a slow script warning dialog.

With this fix the function speeds up ten-fold in the firebug profile.
---
 pdf.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pdf.js b/pdf.js
index 7e748cfd8..9a476ccef 100644
--- a/pdf.js
+++ b/pdf.js
@@ -5469,9 +5469,8 @@ var DeviceGrayCS = (function() {
     },
     getRgbBuffer: function graycs_getRgbBuffer(input, bits) {
       var scale = 255 / ((1 << bits) - 1);
-      var length = input.length * 3;
-      var rgbBuf = new Uint8Array(length);
-      for (var i = 0, j = 0; i < length; ++i) {
+      var rgbBuf = new Uint8Array(input.length * 3);
+      for (var i = 0, j = 0; i < input.length; ++i) {
         var c = (scale * input[i]) | 0;
         rgbBuf[j++] = c;
         rgbBuf[j++] = c;

From d4b8326496bdc65af50892df0cebe5ac897e7737 Mon Sep 17 00:00:00 2001
From: Kalervo Kujala <kkujala@>
Date: Tue, 6 Sep 2011 00:11:24 +0300
Subject: [PATCH 2/2] Fix a bug and speed up graycs_getRgbBuffer.

An rgbBuffer was created which was three times as big as intended. It also
caused that the function was very slow when rendering cable.pdf. Which led
to a slow script warning dialog.

With this fix the function speeds up fifteen-fold in the firebug profile.
---
 pdf.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pdf.js b/pdf.js
index 9a476ccef..44197b4ab 100644
--- a/pdf.js
+++ b/pdf.js
@@ -5469,8 +5469,9 @@ var DeviceGrayCS = (function() {
     },
     getRgbBuffer: function graycs_getRgbBuffer(input, bits) {
       var scale = 255 / ((1 << bits) - 1);
-      var rgbBuf = new Uint8Array(input.length * 3);
-      for (var i = 0, j = 0; i < input.length; ++i) {
+      var length = input.length;
+      var rgbBuf = new Uint8Array(length * 3);
+      for (var i = 0, j = 0; i < length; ++i) {
         var c = (scale * input[i]) | 0;
         rgbBuf[j++] = c;
         rgbBuf[j++] = c;