Added support for reading and writing osgTerrain objects

2008-01-09 16:35:55 +00:00
parent 9bae59bd6e
commit 803f70c2fb
15 changed files with 930 additions and 193 deletions
--- a/src/osgPlugins/ive/ImageLayer.cpp
+++ b/src/osgPlugins/ive/ImageLayer.cpp
@@ -0,0 +1,86 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include "Exception.h"
+#include "ImageLayer.h"
+#include "Layer.h"
+
+#include <osgDB/ReadFile>
+
+using namespace ive;
+
+void ImageLayer::write(DataOutputStream* out)
+{
+    // Write Layer's identification.
+    out->writeInt(IVEIMAGELAYER);
+
+    // If the osg class is inherited by any other class we should also write this to file.
+    osgTerrain::Layer*  layer = dynamic_cast<osgTerrain::Layer*>(this);
+    if  (layer)
+        ((ive::Layer*)(layer))->write(out);
+    else
+        throw Exception("ImageLayer::write(): Could not cast this osgLayer::ImageLayer to an osgTerrain::Layer.");
+
+
+    if (getFileName().empty() && getImage())
+    {
+        // using inline image
+        out->writeBool(true);  
+        out->writeChar(out->getIncludeImageMode());
+        out->writeImage(out->getIncludeImageMode(),getImage());
+    }
+    else
+    {
+        // using external image file
+        out->writeBool(false);        
+        out->writeString(getFileName());
+    }
+
+}
+
+void ImageLayer::read(DataInputStream* in)
+{
+    // Peek on Layer's identification.
+    int id = in->peekInt();
+    if (id != IVEIMAGELAYER)
+        throw Exception("ImageLayer::read(): Expected ImageLayer identification.");
+    
+    // Read Layer's identification.
+    id = in->readInt();
+
+    // If the osg class is inherited by any other class we should also read this from file.
+    osgTerrain::Layer*  layer = dynamic_cast<osgTerrain::Layer*>(this);
+    if (layer)
+        ((ive::Layer*)(layer))->read(in);
+    else
+        throw Exception("ImageLayer::read(): Could not cast this osgLayer::Layer to an osg::Group.");
+
+
+    bool useInlineImage = in->readBool();
+    
+    if (useInlineImage)
+    {
+        // Should we read image data from stream
+        IncludeImageMode includeImg = (IncludeImageMode)in->readChar();
+
+        setImage(in->readImage(includeImg));
+    }
+    else
+    {
+        std::string filename = in->readString();
+        setFileName(filename);
+        
+        setImage(osgDB::readImageFile(filename,in->getOptions()));
+    }
+
+}