From Mike Weiblen, "adds sourcefiles for beginnings of .osg fileformat i/o support

> - enhancemens to core GLSL classes to support file i/o"

src/osgPlugins/osg/Uniform.cpp

@@ -0,0 +1,63 @@
+#include "osg/Uniform"
+
+#include "osgDB/Registry"
+#include "osgDB/Input"
+#include "osgDB/Output"
+
+using namespace osg;
+using namespace osgDB;
+using namespace std;
+
+// forward declare functions to use later.
+bool Uniform_readLocalData(Object& obj, Input& fr);
+bool Uniform_writeLocalData(const Object& obj, Output& fw);
+
+// register the read and write functions with the osgDB::Registry.
+RegisterDotOsgWrapperProxy g_UniformProxy
+(
+    new osg::Uniform,
+    "Uniform",
+    "Object Uniform",
+    &Uniform_readLocalData,
+    &Uniform_writeLocalData
+);
+
+
+bool Uniform_readLocalData(Object& obj, Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    Uniform& uniform = static_cast<Uniform&>(obj);
+
+    if (fr.matchSequence("type %s"))
+    {
+	uniform.setType( Uniform::getTypeId(fr[1].getStr()) );
+	fr+=2;
+	iteratorAdvanced = true;
+    }
+
+    if (fr.matchSequence("name %s"))
+    {
+        uniform.setName(fr[1].getStr());
+        fr+=2;
+        iteratorAdvanced = true;
+    }
+
+    // TODO read uniform value based on type
+
+    return iteratorAdvanced;
+}
+
+
+bool Uniform_writeLocalData(const Object& obj,Output& fw)
+{
+    const Uniform& uniform = static_cast<const Uniform&>(obj);
+
+    fw.indent() << "type " << uniform.getTypename( uniform.getType() ) << std::endl;
+
+    fw.indent() << "name "<< uniform.getName() << std::endl;
+
+    // TODO write uniform value based on type
+
+    return true;
+}