FreeWRL/FreeX3D  3.0.0
basicsurfeval.h
1 /*
2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
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9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice including the dates of first publication and
13  * either this permission notice or a reference to
14  * http://oss.sgi.com/projects/FreeB/
15  * shall be included in all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23  * SOFTWARE.
24  *
25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
26  * shall not be used in advertising or otherwise to promote the sale, use or
27  * other dealings in this Software without prior written authorization from
28  * Silicon Graphics, Inc.
29  */
30 
31 /*
32  * basicsurfeval.h
33  *
34  */
35 
36 #ifndef __glubasicsurfeval_h_
37 #define __glubasicsurfeval_h_
38 
39 #include "types.h"
40 #include "displaymode.h"
41 #include "cachingeval.h"
42 
43 class BasicSurfaceEvaluator : public CachingEvaluator {
44 public:
45  virtual ~BasicSurfaceEvaluator() { /* silence warning*/ }
46  virtual void range2f( long, REAL *, REAL * );
47  virtual void domain2f( REAL, REAL, REAL, REAL );
48 
49  virtual void enable( long );
50  virtual void disable( long );
51  virtual void bgnmap2f( long );
52  virtual void map2f( long, REAL, REAL, long, long,
53  REAL, REAL, long, long,
54  REAL * );
55  virtual void mapgrid2f( long, REAL, REAL, long, REAL, REAL );
56  virtual void mapmesh2f( long, long, long, long, long );
57  virtual void evalcoord2f( long, REAL, REAL );
58  virtual void evalpoint2i( long, long );
59  virtual void endmap2f( void );
60 
61  virtual void polymode( long );
62  virtual void bgnline( void );
63  virtual void endline( void );
64  virtual void bgnclosedline( void );
65  virtual void endclosedline( void );
66  virtual void bgntmesh( void );
67  virtual void swaptmesh( void );
68  virtual void endtmesh( void );
69  virtual void bgnqstrip( void );
70  virtual void endqstrip( void );
71 
72  virtual void bgntfan( void );
73  virtual void endtfan( void );
74 
75  virtual void evalUStrip(int n_upper, REAL v_upper, REAL* upper_val,
76  int n_lower, REAL v_lower, REAL* lower_val
77  ) = 0;
78 
79  virtual void evalVStrip(int n_left, REAL u_left, REAL* left_val,
80  int n_right, REAL u_right, REAL* right_val
81  ) = 0;
82  virtual void inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
83  virtual void inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
84  virtual void inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
85  virtual void inPreEvaluateBV_intfac(REAL v ) = 0;
86  virtual void inPreEvaluateBU_intfac(REAL u ) = 0;
87 
88 };
89 
90 #endif /* __glubasicsurfeval_h_ */