src/glu/sgi/libnurbs/internals/basicsurfeval.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  * basicsurfeval.h
  33  *
  34  */
  35
  36 #ifndef __glubasicsurfeval_h_
  37 #define __glubasicsurfeval_h_
  38
  39 #include "types.h"
  40 #include "displaymode.h"
  41 #include "cachingeval.h"
  42
  43 class BasicSurfaceEvaluator : public CachingEvaluator {
  44 public:
  45     virtual             ~BasicSurfaceEvaluator() { /* silence warning*/ }
  46     virtual void        range2f( long, REAL *, REAL * );
  47     virtual void        domain2f( REAL, REAL, REAL, REAL );
  48
  49     virtual void        enable( long );
  50     virtual void        disable( long );
  51     virtual void        bgnmap2f( long );
  52     virtual void        map2f( long, REAL, REAL, long, long,
  53                                      REAL, REAL, long, long,
  54                                      REAL *  );
  55     virtual void        mapgrid2f( long, REAL, REAL, long,  REAL, REAL );
  56     virtual void        mapmesh2f( long, long, long, long, long );
  57     virtual void        evalcoord2f( long, REAL, REAL );
  58     virtual void        evalpoint2i( long, long );
  59     virtual void        endmap2f( void );
  60
  61     virtual void        polymode( long );
  62     virtual void        bgnline( void );
  63     virtual void        endline( void );
  64     virtual void        bgnclosedline( void );
  65     virtual void        endclosedline( void );
  66     virtual void        bgntmesh( void );
  67     virtual void        swaptmesh( void );
  68     virtual void        endtmesh( void );
  69     virtual void        bgnqstrip( void );
  70     virtual void        endqstrip( void );
  71
  72     virtual void        bgntfan( void );
  73     virtual void        endtfan( void );
  74
  75     virtual void        evalUStrip(int n_upper, REAL v_upper, REAL* upper_val,
  76                                      int n_lower, REAL v_lower, REAL* lower_val
  77       ) = 0;
  78
  79     virtual void        evalVStrip(int n_left, REAL u_left, REAL* left_val,
  80                                      int n_right, REAL u_right, REAL* right_val
  81       ) = 0;
  82     virtual void        inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  83     virtual void        inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  84     virtual void        inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  85     virtual void inPreEvaluateBV_intfac(REAL v ) = 0;
  86     virtual void inPreEvaluateBU_intfac(REAL u ) = 0;
  87
  88 };
  89
  90 #endif /* __glubasicsurfeval_h_ */