Equalizer  1.4.1
eqPly/vertexBufferLeaf.h
00001 
00002 /* Copyright (c) 2007, Tobias Wolf <twolf@access.unizh.ch>
00003  *           2008-2012, Stefan Eilemann <eile@equalizergraphics.com>
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  * - Redistributions of source code must retain the above copyright notice, this
00009  *   list of conditions and the following disclaimer.
00010  * - Redistributions in binary form must reproduce the above copyright notice,
00011  *   this list of conditions and the following disclaimer in the documentation
00012  *   and/or other materials provided with the distribution.
00013  * - Neither the name of Eyescale Software GmbH nor the names of its
00014  *   contributors may be used to endorse or promote products derived from this
00015  *   software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028   
00029     
00030     Header file of the VertexBufferLeaf class.
00031 */
00032 
00033 
00034 #ifndef MESH_VERTEXBUFFERLEAF_H
00035 #define MESH_VERTEXBUFFERLEAF_H
00036 
00037 
00038 #include "vertexBufferBase.h"
00039 
00040 
00041 namespace mesh 
00042 {
00043     /*  The class for kd-tree leaf nodes.  */
00044     class VertexBufferLeaf : public VertexBufferBase
00045     {
00046     public:
00047         VertexBufferLeaf( VertexBufferData& data )
00048             : _globalData( data ), _vertexStart( 0 ),
00049               _indexStart( 0 ), _indexLength( 0 ) {}
00050         virtual ~VertexBufferLeaf() {}
00051         
00052         virtual void draw( VertexBufferState& state ) const;
00053         virtual Index getNumberOfVertices() const { return _indexLength; }
00054         
00055     protected:
00056         virtual void toStream( std::ostream& os );
00057         virtual void fromMemory( char** addr, VertexBufferData& globalData );
00058         
00059         virtual void setupTree( VertexData& data, const Index start,
00060                                 const Index length, const Axis axis,
00061                                 const size_t depth,
00062                                 VertexBufferData& globalData );
00063         virtual const BoundingSphere& updateBoundingSphere();
00064         virtual void updateRange();
00065         
00066     private:
00067         void setupRendering( VertexBufferState& state, GLuint* data ) const;
00068         void renderImmediate( VertexBufferState& state ) const;
00069         void renderDisplayList( VertexBufferState& state ) const;
00070         void renderBufferObject( VertexBufferState& state ) const;
00071         
00072         VertexBufferData&   _globalData;
00073         BoundingBox         _boundingBox;
00074         Index               _vertexStart;
00075         Index               _indexStart;
00076         Index               _indexLength;
00077         ShortIndex          _vertexLength;
00078         friend class eqPly::VertexBufferDist;
00079     };
00080     
00081     
00082 }
00083 
00084 
00085 #endif // MESH_VERTEXBUFFERLEAF_H
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