Initial revision

src/osg/CullFace.cpp

@@ -0,0 +1,80 @@
+#include "osg/GL"
+#include "osg/CullFace"
+#include "osg/Output"
+#include "osg/Input"
+
+
+using namespace osg;
+
+CullFace::CullFace()
+{
+    _mode = BACK;
+}
+
+CullFace::~CullFace()
+{
+}
+
+CullFace* CullFace::instance()
+{
+    static ref_ptr<CullFace> s_CullFace(new CullFace);
+    return s_CullFace.get();
+}
+
+void CullFace::enable( void )
+{
+    glEnable( GL_CULL_FACE  );
+}
+
+
+void CullFace::disable( void )
+{
+    glDisable( GL_CULL_FACE  );
+}
+
+void CullFace::apply()
+{
+    glCullFace((GLenum)_mode);
+}
+
+
+bool CullFace::readLocalData(Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    if (fr[0].matchWord("mode"))
+    {
+        if (fr[1].matchWord("FRONT"))
+        {
+            _mode = FRONT;
+            fr+=2;
+            iteratorAdvanced = true;
+        }
+        else if (fr[1].matchWord("BACK"))
+        {
+            _mode = BACK;
+            fr+=2;
+            iteratorAdvanced = true;
+        }
+        else if (fr[1].matchWord("FRONT_AND_BACK"))
+        {
+            _mode = FRONT_AND_BACK;
+            fr+=2;
+            iteratorAdvanced = true;
+        }
+    }
+
+    return iteratorAdvanced;
+}
+
+
+bool CullFace::writeLocalData(Output& fw)
+{
+    switch(_mode)
+    {
+    case(FRONT):          fw.indent() << "mode FRONT" << endl; break;
+    case(BACK):           fw.indent() << "mode BACK" << endl; break;
+    case(FRONT_AND_BACK): fw.indent() << "mode FRONT_AND_BACK" << endl; break;
+    }
+    return true;
+}