2 ** License Applicability. Except to the extent portions of this file are
3 ** made subject to an alternative license as permitted in the SGI Free
4 ** Software License B, Version 1.1 (the "License"), the contents of this
5 ** file are subject only to the provisions of the License. You may not use
6 ** this file except in compliance with the License. You may obtain a copy
7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
10 ** http://oss.sgi.com/projects/FreeB
12 ** Note that, as provided in the License, the Software is distributed on an
13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
21 ** Copyright in any portions created by third parties is as indicated
22 ** elsewhere herein. All Rights Reserved.
24 ** Additional Notice Provisions: The application programming interfaces
25 ** established by SGI in conjunction with the Original Code are The
26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
31 ** published by SGI, but has not been independently verified as being
32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
38 * $Date$ $Revision: 1.1 $
39 * $Header: /cygdrive/c/RCVS/CVS/ReactOS/reactos/lib/glu32/libnurbs/internals/curvelist.cc,v 1.1 2004/02/02 16:39:11 navaraf Exp $
42 #include "glimports.h"
46 #include "curvelist.h"
48 #include "nurbsconsts.h"
51 Curvelist::Curvelist( Quilt
*quilts
, REAL pta
, REAL ptb
)
54 for( Quilt
*q
= quilts
; q
; q
= q
->next
)
55 curve
= new Curve( q
, pta
, ptb
, curve
);
61 Curvelist::Curvelist( Curvelist
&upper
, REAL value
)
63 Curvelist
&lower
= *this;
65 for( Curve
*c
= upper
.curve
; c
; c
= c
->next
)
66 curve
= new Curve( *c
, value
, curve
);
68 lower
.range
[0] = upper
.range
[0];
69 lower
.range
[1] = value
;
70 lower
.range
[2] = value
- upper
.range
[0];
71 upper
.range
[0] = value
;
72 upper
.range
[2] = upper
.range
[1] - value
;
75 Curvelist::~Curvelist()
85 Curvelist::cullCheck( void )
87 for( Curve
*c
= curve
; c
; c
= c
->next
)
88 if( c
->cullCheck() == CULL_TRIVIAL_REJECT
)
89 return CULL_TRIVIAL_REJECT
;
94 Curvelist::getstepsize( void )
98 for( c
= curve
; c
; c
= c
->next
) {
101 stepsize
= ((c
->stepsize
< stepsize
) ? c
->stepsize
: stepsize
);
102 if( c
->needsSamplingSubdivision() ) break;
104 needsSubdivision
= ( c
) ? 1 : 0;
108 Curvelist::needsSamplingSubdivision( void )
110 return needsSubdivision
;