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From 567a97b6347ac8c2b93ec788c437b7e9bb23ef75 Mon Sep 17 00:00:00 2001
From: Edwin Flores <eflores@mozilla.com>
Date: Wed, 2 Dec 2015 16:15:29 +0100
Subject: [PATCH] Bug 1224100 - Initialize padding to 0 in Downscaler. r=seth,
a=sledru
---
image/src/Downscaler.cpp | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/image/src/Downscaler.cpp b/image/src/Downscaler.cpp
index 24ecfda..2a7acfd 100644
--- a/image/src/Downscaler.cpp
+++ b/image/src/Downscaler.cpp
@@ -86,11 +86,16 @@ Downscaler::BeginFrame(const nsIntSize& aOriginalSize,
mTargetSize.height, mYFilter.get());
// Allocate the buffer, which contains scanlines of the original image.
- mRowBuffer = MakeUnique<uint8_t[]>(mOriginalSize.width * sizeof(uint32_t));
+ size_t bufferLen = mOriginalSize.width * sizeof(uint32_t);
+ mRowBuffer = MakeUnique<uint8_t[]>(bufferLen);
if (MOZ_UNLIKELY(!mRowBuffer)) {
return NS_ERROR_OUT_OF_MEMORY;
}
+ // Zero buffer to keep valgrind happy.
+ memset(mRowBuffer.get(), 0, bufferLen);
+
+
// Allocate the window, which contains horizontally downscaled scanlines. (We
// can store scanlines which are already downscale because our downscaling
// filter is separable.)
--
2.6.3
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