src/glu/sgi/libnurbs/internals/patchlist.h

   1 /*
   2  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
   3  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice including the dates of first publication and
  13  * either this permission notice or a reference to
  14  * http://oss.sgi.com/projects/FreeB/
  15  * shall be included in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name of Silicon Graphics, Inc.
  26  * shall not be used in advertising or otherwise to promote the sale, use or
  27  * other dealings in this Software without prior written authorization from
  28  * Silicon Graphics, Inc.
  29  */
  30
  31 /*
  32  * patchlist.h
  33  *
  34  * $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $
  35  * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/patchlist.h,v 1.1 2001/03/17 00:25:41 brianp Exp $
  36  */
  37
  38 #ifndef __glupatchlist_h_
  39 #define __glupatchlist_h_
  40
  41 #include "types.h"
  42 #include "defines.h"
  43 #include "patch.h"
  44
  45 class Quilt;
  46
  47 class Patchlist {
  48 friend class Subdivider;
  49 public:
  50                         Patchlist( Quilt *, REAL *, REAL * );
  51                         Patchlist( Patchlist &, int ,  REAL );
  52                         ~Patchlist();
  53     void                bbox();
  54     int                 cullCheck( void );
  55     void                getstepsize( void );
  56     int                 needsNonSamplingSubdivision( void );
  57     int                 needsSamplingSubdivision( void );
  58     int                 needsSubdivision( int );
  59     REAL                getStepsize( int );
  60     void                getRanges(REAL ranges[4]);
  61
  62     int                 get_uorder();
  63     int                 get_vorder();
  64 private:
  65     Patch               *patch;
  66     int                 notInBbox;
  67     int                 needsSampling;
  68     Pspec               pspec[2];
  69 };
  70
  71 inline REAL
  72 Patchlist::getStepsize( int param )
  73 {
  74     return pspec[param].stepsize;
  75 }
  76
  77 inline int
  78 Patchlist::get_uorder()
  79 {
  80    return patch->get_uorder();
  81
  82 }
  83
  84 inline int
  85  Patchlist::get_vorder()
  86 {
  87   return patch->get_vorder();
  88 }
  89
  90
  91
  92
  93
  94 #endif /* __glupatchlist_h_ */