Merge pull request #3 from saurabhb17/master

secondary files

1 files changed, 73 insertions, 0 deletions

diff --git a/include/gal/opengl/noncached_container.h b/include/gal/opengl/noncached_container.h
new file mode 100644
index 0000000..3a51e6d
--- /dev/null
+++ b/include/gal/opengl/noncached_container.h
@@ -0,0 +1,73 @@
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2013 CERN
+ * @author Maciej Suminski <maciej.suminski@cern.ch>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file noncached_container.h
+ * @brief Class to store instances of VERTEX without caching. It allows a fast one-frame drawing
+ * and then clearing the buffer and starting from scratch.
+ */
+
+#ifndef NONCACHED_CONTAINER_H_
+#define NONCACHED_CONTAINER_H_
+
+#include <gal/opengl/vertex_container.h>
+
+namespace KIGFX
+{
+class VERTEX_ITEM;
+class SHADER;
+
+class NONCACHED_CONTAINER : public VERTEX_CONTAINER
+{
+public:
+    NONCACHED_CONTAINER( unsigned int aSize = defaultInitSize );
+    virtual ~NONCACHED_CONTAINER();
+
+    ///< @copydoc VERTEX_CONTAINER::SetItem( VERTEX_ITEM* aItem )
+    virtual void SetItem( VERTEX_ITEM* aItem );
+
+    ///< @copydoc VERTEX_CONTAINER::Allocate( unsigned int aSize )
+    virtual VERTEX* Allocate( unsigned int aSize );
+
+    ///< @copydoc VERTEX_CONTAINER::Delete( VERTEX_ITEM* aItem )
+    void Delete( VERTEX_ITEM* aItem ) {};
+
+    ///< @copydoc VERTEX_CONTAINER::Clear()
+    virtual void Clear();
+
+    ///< @copydoc VERTEX_CONTAINER::GetSize()
+    virtual inline unsigned int GetSize() const
+    {
+        // As the m_freePtr points to the first free space, we can safely assume
+        // that this is the number of vertices stored inside
+        return m_freePtr;
+    }
+
+protected:
+    ///< Index of the free first space where a vertex can be stored
+    unsigned int m_freePtr;
+};
+} // namespace KIGFX
+
+#endif /* NONCACHED_CONTAINER_H_ */