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/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
/*
* quilt.h
*
* $Date: 2001/08/07 17:34:11 $ $Revision: 1.2 $
* $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/quilt.h,v 1.2 2001/08/07 17:34:11 brianp Exp $
*/
#ifndef __gluquilt_h_
#define __gluquilt_h_
#include "defines.h"
#include "bufpool.h"
#include "types.h"
class Backend;
class Mapdesc;
class Flist;
struct Knotvector;
/* constants for memory allocation of NURBS to Bezier conversion */
#define MAXDIM 2
struct Quiltspec { /* a specification for a dimension of a quilt */
int stride; /* words between points */
int width; /* number of segments */
int offset; /* words to first point */
int order; /* order */
int index; /* current segment number */
int bdry[2]; /* boundary edge flag */
REAL step_size;
Knot * breakpoints;
};
typedef Quiltspec *Quiltspec_ptr;
class Quilt : public PooledObj { /* an array of bezier patches */
public:
Quilt( Mapdesc * );
Mapdesc * mapdesc; /* map descriptor */
REAL * cpts; /* control points */
Quiltspec qspec[MAXDIM]; /* the dimensional data */
Quiltspec_ptr eqspec; /* qspec trailer */
Quilt *next; /* next quilt in linked list */
public:
void deleteMe( Pool& );
void toBezier( Knotvector &, INREAL *, long );
void toBezier( Knotvector &, Knotvector &, INREAL *, long );
void select( REAL *, REAL * );
int getDimension( void ) { return eqspec - qspec; }
void download( Backend & );
void downloadAll( REAL *, REAL *, Backend & );
int isCulled( void );
void getRange( REAL *, REAL *, Flist&, Flist & );
void getRange( REAL *, REAL *, int, Flist & );
void getRange( REAL *, REAL *, Flist& );
void findRates( Flist& slist, Flist& tlist, REAL[2] );
void findSampleRates( Flist& slist, Flist& tlist );
void show();
};
typedef class Quilt *Quilt_ptr;
#endif /* __gluquilt_h_ */
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