From 2c5c1ae09bdec32de994f594ef84facd36a5488e Mon Sep 17 00:00:00 2001
From: Peter Hillman <peterh@wetafx.co.nz>
Date: Mon, 20 Jan 2020 15:39:10 +1300
Subject: [PATCH] prevent int overflow when calculating buffer offsets

Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
---
 OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp b/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp
index 7e0dac098c..29568957a4 100644
--- a/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp
+++ b/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp
@@ -179,7 +179,7 @@ CompositeDeepScanLine::Data::handleDeepFrameBuffer (DeepFrameBuffer& buf,
                                                     int start,
                                                     int end)
 {
-    int width=_dataWindow.size().x+1;
+    ptrdiff_t width=_dataWindow.size().x+1;
     size_t pixelcount = width * (end-start+1);
     pointers.resize(_channels.size());
     counts.resize(pixelcount);