Merge branch 'glres_cleanup' into 'master'

GL resource cleanup

See merge request !1

DepthPeeling.cc

@@ -240,6 +240,27 @@ void DepthPeeling::initializePlugin()
   ACG::ShaderProgGenerator::setShaderDir(OpenFlipper::Options::shaderDirStr());
 }
 
+void DepthPeeling::exit()
+{
+  delete peelBlend_;
+  peelBlend_ = 0;
+
+  delete peelFinal_;
+  peelFinal_ = 0;
+
+  delete peelBlendDual_;
+  peelBlendDual_ = 0;
+
+  delete peelFinalDual_;
+  peelFinalDual_ = 0;
+
+  if (peelQueryID_)
+    glDeleteQueries(1, &peelQueryID_);
+  peelQueryID_ = 0;
+
+  viewerRes_.clear();
+}
+
 void DepthPeeling::slotModeChanged( QAction *  _action) 
 {
   // Prepare Picking Debugger Flag

DepthPeeling.hh

@@ -94,7 +94,7 @@ private slots:
 
   //BaseInterface
   void initializePlugin();
-  void exit(){}
+  void exit();
 
   // RenderInterface
   void render(ACG::GLState* _glState, Viewer::ViewerProperties& _properties);