Equalizer  1.6.1
eqPly/vertexBufferLeaf.h
1 
2 /* Copyright (c) 2007, Tobias Wolf <twolf@access.unizh.ch>
3  * 2008-2012, Stefan Eilemann <eile@equalizergraphics.com>
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * - Redistributions of source code must retain the above copyright notice, this
9  * list of conditions and the following disclaimer.
10  * - Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * - Neither the name of Eyescale Software GmbH nor the names of its
14  * contributors may be used to endorse or promote products derived from this
15  * software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  * POSSIBILITY OF SUCH DAMAGE.
28 
29 
30  Header file of the VertexBufferLeaf class.
31 */
32 
33 
34 #ifndef MESH_VERTEXBUFFERLEAF_H
35 #define MESH_VERTEXBUFFERLEAF_H
36 
37 
38 #include "vertexBufferBase.h"
39 
40 
41 namespace mesh
42 {
43  /* The class for kd-tree leaf nodes. */
45  {
46  public:
48  : _globalData( data ), _vertexStart( 0 ),
49  _indexStart( 0 ), _indexLength( 0 ) {}
50  virtual ~VertexBufferLeaf() {}
51 
52  virtual void draw( VertexBufferState& state ) const;
53  virtual Index getNumberOfVertices() const { return _indexLength; }
54 
55  protected:
56  virtual void toStream( std::ostream& os );
57  virtual void fromMemory( char** addr, VertexBufferData& globalData );
58 
59  virtual void setupTree( VertexData& data, const Index start,
60  const Index length, const Axis axis,
61  const size_t depth,
62  VertexBufferData& globalData );
63  virtual const BoundingSphere& updateBoundingSphere();
64  virtual void updateRange();
65 
66  private:
67  void setupRendering( VertexBufferState& state, GLuint* data ) const;
68  void renderImmediate( VertexBufferState& state ) const;
69  void renderDisplayList( VertexBufferState& state ) const;
70  void renderBufferObject( VertexBufferState& state ) const;
71 
72  VertexBufferData& _globalData;
73  BoundingBox _boundingBox;
74  Index _vertexStart;
75  Index _indexStart;
76  Index _indexLength;
77  ShortIndex _vertexLength;
78  friend class eqPly::VertexBufferDist;
79  };
80 
81 
82 }
83 
84 
85 #endif // MESH_VERTEXBUFFERLEAF_H
Holds the final kd-tree data, sorted and reindexed.
co::Object to distribute a model, holds a VertexBufferBase node.