src/glu/sgi/libnurbs/internals/basicsurfeval.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  * basicsurfeval.h
  37  *
  38  */
  39
  40 #ifndef __glubasicsurfeval_h_
  41 #define __glubasicsurfeval_h_
  42
  43 #include "types.h"
  44 #include "displaymode.h"
  45 #include "cachingeval.h"
  46
  47 class BasicSurfaceEvaluator : public CachingEvaluator {
  48 public:
  49     virtual             ~BasicSurfaceEvaluator() { /* silence warning*/ }
  50     virtual void        range2f( long, REAL *, REAL * );
  51     virtual void        domain2f( REAL, REAL, REAL, REAL );
  52
  53     virtual void        enable( long );
  54     virtual void        disable( long );
  55     virtual void        bgnmap2f( long );
  56     virtual void        map2f( long, REAL, REAL, long, long,
  57                                      REAL, REAL, long, long,
  58                                      REAL *  );
  59     virtual void        mapgrid2f( long, REAL, REAL, long,  REAL, REAL );
  60     virtual void        mapmesh2f( long, long, long, long, long );
  61     virtual void        evalcoord2f( long, REAL, REAL );
  62     virtual void        evalpoint2i( long, long );
  63     virtual void        endmap2f( void );
  64
  65     virtual void        polymode( long );
  66     virtual void        bgnline( void );
  67     virtual void        endline( void );
  68     virtual void        bgnclosedline( void );
  69     virtual void        endclosedline( void );
  70     virtual void        bgntmesh( void );
  71     virtual void        swaptmesh( void );
  72     virtual void        endtmesh( void );
  73     virtual void        bgnqstrip( void );
  74     virtual void        endqstrip( void );
  75
  76     virtual void        bgntfan( void );
  77     virtual void        endtfan( void );
  78
  79     virtual void        evalUStrip(int n_upper, REAL v_upper, REAL* upper_val,
  80                                      int n_lower, REAL v_lower, REAL* lower_val
  81       ) = 0;
  82
  83     virtual void        evalVStrip(int n_left, REAL u_left, REAL* left_val,
  84                                      int n_right, REAL u_right, REAL* right_val
  85       ) = 0;
  86     virtual void        inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  87     virtual void        inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  88     virtual void        inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
  89     virtual void inPreEvaluateBV_intfac(REAL v ) = 0;
  90     virtual void inPreEvaluateBU_intfac(REAL u ) = 0;
  91
  92 };
  93
  94 #endif /* __glubasicsurfeval_h_ */