From 1367d33cd8ea4732438d21ea27332c858fa592a3 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Wed, 26 Jun 2013 10:43:58 +0200
Subject: [PATCH] Small speed up for the color change function (OpenGL_GAL).

---
 common/gal/opengl/vbo_item.cpp     |  5 +----
 include/gal/opengl/vbo_container.h | 10 ++++++++++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/common/gal/opengl/vbo_item.cpp b/common/gal/opengl/vbo_item.cpp
index 4d6132403b..ba68c1abb0 100644
--- a/common/gal/opengl/vbo_item.cpp
+++ b/common/gal/opengl/vbo_item.cpp
@@ -73,15 +73,12 @@ VBO_VERTEX* VBO_ITEM::GetVertices()
     if( m_isDirty )
         Finish();
 
-    return m_container->GetVertices( this );
+    return m_container->GetVertices( m_offset );
 }
 
 
 void VBO_ITEM::ChangeColor( const COLOR4D& aColor )
 {
-    if( m_isDirty )
-        Finish();
-
     VBO_VERTEX* vertexPtr = GetVertices();
 
     for( unsigned int i = 0; i < m_size; ++i )
diff --git a/include/gal/opengl/vbo_container.h b/include/gal/opengl/vbo_container.h
index b32a255b3f..ba8e292310 100644
--- a/include/gal/opengl/vbo_container.h
+++ b/include/gal/opengl/vbo_container.h
@@ -112,6 +112,16 @@ public:
      */
     VBO_VERTEX* GetVertices( const VBO_ITEM* aVboItem ) const;
 
+    /**
+     * Function GetVertices()
+     * Returns vertices stored at the specific offset.
+     * @aOffest is the specific offset.
+     */
+    inline VBO_VERTEX* GetVertices( unsigned int aOffset ) const
+    {
+        return &m_vertices[aOffset];
+    }
+
     /**
      * Function GetSize()
      * Returns amount of vertices currently stored in the container.