IABSD.fr/xenocara/lib/libGLU/src/libnurbs/internals/quilt.h

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• Author : jsg
  Date : 2013-09-01 03:51:12
  Hash : 729f7da4
  Message : Update to GLU 9.0.0, GLU was previously part of Mesa but is now seperate. tested in a ports bulk build by landry@, ok matthieu@

• lib/libGLU/src/libnurbs/internals/quilt.h

• /*
   * 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
   *
   */
  
  #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_ */