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  */
  35
  36 #ifndef __glupatchlist_h_
  37 #define __glupatchlist_h_
  38
  39 #include "types.h"
  40 #include "defines.h"
  41 #include "patch.h"
  42
  43 class Quilt;
  44
  45 class Patchlist {
  46 friend class Subdivider;
  47 public:
  48                         Patchlist( Quilt *, REAL *, REAL * );
  49                         Patchlist( Patchlist &, int ,  REAL );
  50                         ~Patchlist();
  51     void                bbox();
  52     int                 cullCheck( void );
  53     void                getstepsize( void );
  54     int                 needsNonSamplingSubdivision( void );
  55     int                 needsSamplingSubdivision( void );
  56     int                 needsSubdivision( int );
  57     REAL                getStepsize( int );
  58     void                getRanges(REAL ranges[4]);
  59
  60     int                 get_uorder();
  61     int                 get_vorder();
  62 private:
  63     Patch               *patch;
  64     int                 notInBbox;
  65     int                 needsSampling;
  66     Pspec               pspec[2];
  67 };
  68
  69 inline REAL
  70 Patchlist::getStepsize( int param )
  71 {
  72     return pspec[param].stepsize;
  73 }
  74
  75 inline int
  76 Patchlist::get_uorder()
  77 {
  78    return patch->get_uorder();
  79
  80 }
  81
  82 inline int
  83  Patchlist::get_vorder()
  84 {
  85   return patch->get_vorder();
  86 }
  87
  88
  89
  90
  91
  92 #endif /* __glupatchlist_h_ */