FreeWRL / FreeX3D 4.3.0
arctess.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
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * arctess.h
33 *
34 */
35
36#ifndef __gluarctess_h_
37#define __gluarctess_h_
38
39#include "defines.h"
40#include "types.h"
41#include "arc.h"
42
43struct BezierArc;
44class Pool;
45class TrimVertexPool;
46
48public:
50 ~ArcTessellator( void );
51 void bezier( Arc_ptr, REAL, REAL, REAL, REAL );
52 void pwl( Arc_ptr, REAL, REAL, REAL, REAL, REAL );
53 void pwl_left( Arc_ptr, REAL, REAL, REAL, REAL );
54 void pwl_right( Arc_ptr, REAL, REAL, REAL, REAL );
55 void pwl_top( Arc_ptr, REAL, REAL, REAL, REAL );
56 void pwl_bottom( Arc_ptr, REAL, REAL, REAL, REAL );
57 void tessellateLinear( Arc_ptr, REAL, REAL, int );
58 void tessellateNonlinear( Arc_ptr, REAL, REAL, int );
59private:
60 static const REAL gl_Bernstein[][MAXORDER][MAXORDER];
61 Pool& pwlarcpool;
62 TrimVertexPool& trimvertexpool;
63 static void trim_power_coeffs( BezierArc *, REAL[MAXORDER], int );
64};
65
66#endif /* __gluarctess_h_ */
Definition bufpool.h:50