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

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 */
  34
  35 /*
  36  * patchlist.h
  37  *
  38  */
  39
  40 #ifndef __glupatchlist_h_
  41 #define __glupatchlist_h_
  42
  43 #include "types.h"
  44 #include "defines.h"
  45 #include "patch.h"
  46
  47 class Quilt;
  48
  49 class Patchlist {
  50 friend class Subdivider;
  51 public:
  52                         Patchlist( Quilt *, REAL *, REAL * );
  53                         Patchlist( Patchlist &, int ,  REAL );
  54                         ~Patchlist();
  55     void                bbox();
  56     int                 cullCheck( void );
  57     void                getstepsize( void );
  58     int                 needsNonSamplingSubdivision( void );
  59     int                 needsSamplingSubdivision( void );
  60     int                 needsSubdivision( int );
  61     REAL                getStepsize( int );
  62     void                getRanges(REAL ranges[4]);
  63
  64     int                 get_uorder();
  65     int                 get_vorder();
  66 private:
  67     Patch               *patch;
  68     int                 notInBbox;
  69     int                 needsSampling;
  70     Pspec               pspec[2];
  71 };
  72
  73 inline REAL
  74 Patchlist::getStepsize( int param )
  75 {
  76     return pspec[param].stepsize;
  77 }
  78
  79 inline int
  80 Patchlist::get_uorder()
  81 {
  82    return patch->get_uorder();
  83
  84 }
  85
  86 inline int
  87  Patchlist::get_vorder()
  88 {
  89   return patch->get_vorder();
  90 }
  91
  92
  93
  94
  95
  96 #endif /* __glupatchlist_h_ */