1 #ifndef COIN_SOSHAPE_TRIANGLESORT_H
2 #define COIN_SOSHAPE_TRIANGLESORT_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions are
10  * met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
19  * Neither the name of the copyright holder nor the names of its
20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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29  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 \**************************************************************************/
35 
36 #ifndef COIN_INTERNAL
37 #error this is a private header file
38 #endif /* !COIN_INTERNAL */
39 
40 #include <Inventor/lists/SbList.h>
41 #include <Inventor/SoPrimitiveVertex.h>
42 
43 class SoState;
44 class SoPrimitiveVertex;
45 class SoMaterialBundle;
46 
47 class soshape_trianglesort {
48 public:
49   soshape_trianglesort();
50   ~soshape_trianglesort();
51 
52   void beginShape(SoState * state);
53   void triangle(SoState * state,
54                 const SoPrimitiveVertex * v1,
55                 const SoPrimitiveVertex * v2,
56                 const SoPrimitiveVertex * v3);
57   void endShape(SoState * state, SoMaterialBundle & mb);
58 
59   typedef struct {
60     int idx : 31;
61     unsigned int backface : 1;
62     float dist;
63   } sorted_triangle;
64 
65 private:
66 
67   SbList <SoPrimitiveVertex> * pvlist;
68   SbList <sorted_triangle> * trianglelist;
69 };
70 
71 #endif // !COIN_SOSHAPE_TRIANGLESORT_H
72