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.
40 #include "glimports.h"
44 #include "curvelist.h"
48 Curvelist::Curvelist( Quilt *quilts, REAL pta, REAL ptb )
51 for( Quilt *q = quilts; q; q = q->next )
52 curve = new Curve( q, pta, ptb, curve );
60 Curvelist::Curvelist( Curvelist &upper, REAL value )
63 for( Curve *c = upper.curve; c; c = c->next )
64 curve = new Curve( *c, value, curve );
66 range[0] = upper.range[0];
68 range[2] = value - upper.range[0];
69 upper.range[0] = value;
70 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;