ReactOS Development > Doxygen

00001 /*
00002 ** License Applicability. Except to the extent portions of this file are
00003 ** made subject to an alternative license as permitted in the SGI Free
00004 ** Software License B, Version 1.1 (the "License"), the contents of this
00005 ** file are subject only to the provisions of the License. You may not use
00006 ** this file except in compliance with the License. You may obtain a copy
00007 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
00008 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
00009 **
00010 ** http://oss.sgi.com/projects/FreeB
00011 **
00012 ** Note that, as provided in the License, the Software is distributed on an
00013 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
00014 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
00015 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
00016 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
00017 **
00018 ** Original Code. The Original Code is: OpenGL Sample Implementation,
00019 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
00020 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
00021 ** Copyright in any portions created by third parties is as indicated
00022 ** elsewhere herein. All Rights Reserved.
00023 **
00024 ** Additional Notice Provisions: The application programming interfaces
00025 ** established by SGI in conjunction with the Original Code are The
00026 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
00027 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
00028 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
00029 ** Window System(R) (Version 1.3), released October 19, 1998. This software
00030 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
00031 ** published by SGI, but has not been independently verified as being
00032 ** compliant with the OpenGL(R) version 1.2.1 Specification.
00033 */
00034 
00035 /*
00036  * curve.h
00037  *
00038  * $Date: 2006-03-12 00:07:02 +0000 (Sun, 12 Mar 2006) $ $Revision: 1.1 $
00039  * $Header: /cygdrive/c/RCVS/CVS/ReactOS/reactos/lib/glu32/libnurbs/internals/curve.h,v 1.1 2004/02/02 16:39:11 navaraf Exp $
00040  */
00041 
00042 #ifndef __glucurve_h_
00043 #define __glucurve_h_
00044 
00045 #include "types.h"
00046 #include "defines.h"
00047 
00048 class Mapdesc;
00049 class Quilt;
00050 
00051 
00052 class Curve {
00053 public:
00054 friend class Curvelist;
00055                 Curve( Quilt *, REAL, REAL, Curve * );
00056                 Curve( Curve&, REAL, Curve * );
00057     Curve *     next;
00058 private:
00059     Mapdesc *       mapdesc;
00060     int         stride;
00061     int             order;
00062     int         cullval;
00063     int         needsSampling;
00064     REAL        cpts[MAXORDER*MAXCOORDS];
00065     REAL        spts[MAXORDER*MAXCOORDS];
00066     REAL        stepsize;
00067     REAL        minstepsize;
00068     REAL        range[3];
00069 
00070     void        clamp( void );
00071     void        setstepsize( REAL );
00072     void        getstepsize( void );
00073     int         cullCheck( void );
00074     int         needsSamplingSubdivision( void );
00075 };
00076 #endif /* __glucurve_h_ */
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