From Wojciech Lewandowski, "Reading and Writing of Texture2DArrays for IVE format."

2010-05-21 09:56:59 +00:00
parent a79a13955a
commit 0165862701
6 changed files with 111 additions and 0 deletions
--- a/src/osgPlugins/ive/Texture2DArray.cpp
+++ b/src/osgPlugins/ive/Texture2DArray.cpp
@@ -0,0 +1,80 @@
+/**********************************************************************
+ *
+ *    FILE:           Texture2DArray.cpp
+ *
+ *    DESCRIPTION:    Read/Write osg::Texture2DArray in binary format to disk.
+ *
+ *    CREATED BY:     Wojtek Lewandowski based on TextureCubeMap ive support
+ *
+ *    HISTORY:        Created 12.02.2010
+ *
+ **********************************************************************/
+
+#include "Exception.h"
+#include "Texture2DArray.h"
+#include "Texture.h"
+#include "Image.h"
+
+using namespace ive;
+
+void Texture2DArray::write(DataOutputStream* out){
+    // Write Texture2DArray's identification.
+    out->writeInt(IVETEXTURE2DARRAY);
+    // If the osg class is inherited by any other class we should also write this to file.
+    osg::Texture*  tex = dynamic_cast<osg::Texture*>(this);
+    if(tex){
+        ((ive::Texture*)(tex))->write(out);
+    }
+    else
+        out_THROW_EXCEPTION("Texture2DArray::write(): Could not cast this osg::Texture2DArray to an osg::Texture.");
+    // Write Texture2DArray's properties.
+
+    // Write texture size
+    out->writeInt(getTextureWidth());
+    out->writeInt(getTextureHeight());
+    out->writeInt(getTextureDepth());
+
+    // Write number of mipmap levels
+    out->writeInt(getNumMipmapLevels());
+
+    for( int i = 0; i < getTextureDepth(); i++ )
+    {
+        out->writeImage( getImage( i ) );
+    }
+}
+
+void Texture2DArray::read(DataInputStream* in)
+{
+    // Peek on Texture2DArray's identification.
+    int id = in->peekInt();
+    if(id == IVETEXTURE2DARRAY){
+        // Read Texture2DArray's identification.
+        id = in->readInt();
+        // If the osg class is inherited by any other class we should also read this from file.
+        osg::Texture* tex = dynamic_cast<osg::Texture*>(this);
+        if(tex){
+            ((ive::Texture*)(tex))->read(in);
+        }
+        else
+            in_THROW_EXCEPTION("Texture2DArray::read(): Could not cast this osg::Texture2DArray to an osg::Texture.");
+        // Read Texture2DArray's properties
+
+        // Read texture size
+        int width = in->readInt();
+        int height = in->readInt();
+        int depth = in->readInt();
+        setTextureSize(width, height, depth);
+
+        // Read number of mipmap levels
+        setNumMipmapLevels((unsigned int)in->readInt());
+
+        for( int i = 0; i < depth; i++ )
+        {
+            setImage( i, in->readImage() );
+        }
+    }
+    else{
+        in_THROW_EXCEPTION("Texture2DArray::read(): Expected Texture2DArray identification.");
+    }
+}
+