basicsurfeval.h

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/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice including the dates of first publication and
 * either this permission notice or a reference to
 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * Silicon Graphics, Inc.
 */
 
/*
 * basicsurfeval.h
 *
 */
 
#ifndef __glubasicsurfeval_h_
#define __glubasicsurfeval_h_
 
#include "types.h"
#include "displaymode.h"
#include "cachingeval.h"
 
class BasicSurfaceEvaluator : public CachingEvaluator {
public:
    virtual             ~BasicSurfaceEvaluator() { /* silence warning*/ }
    virtual void    range2f( long, REAL *, REAL * );
    virtual void    domain2f( REAL, REAL, REAL, REAL );
 
    virtual void    enable( long );
    virtual void    disable( long );
    virtual void    bgnmap2f( long );
    virtual void    map2f( long, REAL, REAL, long, long, 
                     REAL, REAL, long, long, 
                     REAL *  );
    virtual void    mapgrid2f( long, REAL, REAL, long,  REAL, REAL );
    virtual void    mapmesh2f( long, long, long, long, long );
    virtual void    evalcoord2f( long, REAL, REAL );
    virtual void    evalpoint2i( long, long );
    virtual void    endmap2f( void );
 
    virtual void    polymode( long );
    virtual void    bgnline( void );
    virtual void    endline( void );
    virtual void    bgnclosedline( void );
    virtual void    endclosedline( void );
    virtual void    bgntmesh( void );
    virtual void    swaptmesh( void );
    virtual void    endtmesh( void );
    virtual void    bgnqstrip( void );
    virtual void    endqstrip( void );
 
    virtual void    bgntfan( void );
    virtual void    endtfan( void );
 
    virtual void        evalUStrip(int n_upper, REAL v_upper, REAL* upper_val,
                     int n_lower, REAL v_lower, REAL* lower_val
      ) = 0;
 
    virtual void        evalVStrip(int n_left, REAL u_left, REAL* left_val,
                     int n_right, REAL u_right, REAL* right_val
      ) = 0;
    virtual void        inDoEvalCoord2NOGE(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
    virtual void        inDoEvalCoord2NOGE_BU(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
    virtual void        inDoEvalCoord2NOGE_BV(REAL u, REAL v, REAL* ret_point, REAL* ret_normal) = 0;
    virtual void inPreEvaluateBV_intfac(REAL v ) = 0;
    virtual void inPreEvaluateBU_intfac(REAL u ) = 0;
    
};
 
#endif /* __glubasicsurfeval_h_ */