From 4f376529b7b28067a8146ff16dbfc4c3529c04e3 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 16 Aug 2004 21:14:19 +0000
Subject: [PATCH] Added support for "flip" option string, which if present
 flips incoming images about the vertical axis.  Accessed via -O flip on the
 commandline.

---
 src/osgPlugins/dds/ReaderWriterDDS.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/osgPlugins/dds/ReaderWriterDDS.cpp b/src/osgPlugins/dds/ReaderWriterDDS.cpp
index 1f61065c4..945b6d12b 100644
--- a/src/osgPlugins/dds/ReaderWriterDDS.cpp
+++ b/src/osgPlugins/dds/ReaderWriterDDS.cpp
@@ -727,10 +727,16 @@ public:
         return rr;
     }
 
-    virtual ReadResult readImage(std::istream& fin, const Options*)
+    virtual ReadResult readImage(std::istream& fin, const Options* options)
     {
         osg::Image* osgImage = ReadDDSFile(fin);
         if (osgImage==NULL) return ReadResult::FILE_NOT_HANDLED;
+        
+        if (options && options->getOptionString().find("flip")!=std::string::npos)
+        {
+            osgImage->flipVertical();
+        }
+        
         return osgImage;
     }