From 41823a115d4856ffe3fe17a1c2ae2e0683c4da21 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 1 Nov 2004 10:04:40 +0000
Subject: [PATCH] Added handling of endian in DrawElementsUShort/UInt
 implementations

---
 src/osgPlugins/ive/DrawElementsUByte.cpp  |  1 +
 src/osgPlugins/ive/DrawElementsUInt.cpp   | 12 +++++++++++-
 src/osgPlugins/ive/DrawElementsUShort.cpp |  9 +++++++++
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/osgPlugins/ive/DrawElementsUByte.cpp b/src/osgPlugins/ive/DrawElementsUByte.cpp
index e39835f6f..942538722 100644
--- a/src/osgPlugins/ive/DrawElementsUByte.cpp
+++ b/src/osgPlugins/ive/DrawElementsUByte.cpp
@@ -54,6 +54,7 @@ void DrawElementsUByte::read(DataInputStream* in){
         int size = in->readInt();
         resize(size);
         in->readCharArray((char*)&front(), size * CHARSIZE);
+
     }
     else{
         throw Exception("DrawElementsUByte::read(): Expected DrawElementsUByte identification.");
diff --git a/src/osgPlugins/ive/DrawElementsUInt.cpp b/src/osgPlugins/ive/DrawElementsUInt.cpp
index cc1647224..473ebacd5 100644
--- a/src/osgPlugins/ive/DrawElementsUInt.cpp
+++ b/src/osgPlugins/ive/DrawElementsUInt.cpp
@@ -15,6 +15,7 @@
 #include "Exception.h"
 #include "DrawElementsUInt.h"
 #include "PrimitiveSet.h"
+#include <osg/Endian>
 
 using namespace ive;
 
@@ -36,7 +37,8 @@ void DrawElementsUInt::write(DataOutputStream* out){
     out->writeCharArray((const char*)&front(), size() * INTSIZE);
 }
 
-void DrawElementsUInt::read(DataInputStream* in){
+void DrawElementsUInt::read(DataInputStream* in)
+{
     // Read DrawElementsUInt's identification.
     int id = in->peekInt();
     if(id == IVEDRAWELEMENTSUINT){
@@ -54,6 +56,14 @@ void DrawElementsUInt::read(DataInputStream* in){
         int size = in->readInt();
         resize(size);
         in->readCharArray((char*)&front(), size * INTSIZE);
+
+        if (in->_byteswap)
+        {
+           for (int i = 0 ; i < size ; i++ )
+           {
+                osg::swapBytes4((char*)&((*this)[i])) ;
+           }
+        }        
     }
     else{
         throw Exception("DrawElementsUInt::read(): Expected DrawElementsUInt identification.");
diff --git a/src/osgPlugins/ive/DrawElementsUShort.cpp b/src/osgPlugins/ive/DrawElementsUShort.cpp
index f497edcd7..698ccb77e 100644
--- a/src/osgPlugins/ive/DrawElementsUShort.cpp
+++ b/src/osgPlugins/ive/DrawElementsUShort.cpp
@@ -15,6 +15,7 @@
 #include "Exception.h"
 #include "DrawElementsUShort.h"
 #include "PrimitiveSet.h"
+#include <osg/Endian>
 
 using namespace ive;
 
@@ -54,6 +55,14 @@ void DrawElementsUShort::read(DataInputStream* in){
         int size = in->readInt();
         resize(size);
         in->readCharArray((char*)&front(), size * SHORTSIZE);
+        
+        if (in->_byteswap)
+        {
+           for (int i = 0 ; i < size ; i++ )
+           {
+              osg::swapBytes((char *)&((*this)[i]),SHORTSIZE) ;
+           }
+        }        
     }
     else{
         throw Exception("DrawElementsUShort::read(): Expected DrawElementsUShort identification.");