src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/mesa/src/src/glu/sgi/libnurbs/internals/slicer.h

/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
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 * to deal in the Software without restriction, including without limitation
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 * 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.
 *
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/*
 * slicer.h
 *
 * $Date: 2012/03/29 17:22:17 $ $Revision: 1.1.1.1 $
 * $Header: /cvs/bao-parsec/pkgs/libs/mesa/src/src/glu/sgi/libnurbs/internals/slicer.h,v 1.1.1.1 2012/03/29 17:22:17 uid42307 Exp $
 */

#ifndef __gluslicer_h_
#define __gluslicer_h_

#include "trimregion.h"
#include "mesher.h"
#include "coveandtiler.h"
#include "primitiveStream.h"
#include "rectBlock.h"

class Backend;
class Arc;
class TrimVertex;

class Slicer : public CoveAndTiler, public Mesher {
public:
    			Slicer( Backend & );
			~Slicer( void );
    void		slice( Arc_ptr );
    void		slice_old( Arc_ptr);
    void		slice_new( Arc_ptr );
    void                evalStream(primStream* );
    void                evalRBArray(rectBlockArray* rbArray, gridWrap* grid);

    void		outline( Arc_ptr );
    void		setstriptessellation( REAL, REAL );
    void		setisolines( int );

    void                set_ulinear(int ulinear_flag)
      {
	ulinear = ulinear_flag;
      }
    void                set_vlinear(int vlinear_flag)
      {
	vlinear = vlinear_flag;
      }
private:
    Backend&		backend;
    REAL		oneOverDu;
    REAL		du, dv;
    int			isolines;

    void		outline( void );
    void		initGridlines( void );
    void		advanceGridlines( long );

    int                ulinear; //indicate whether uorder is 2 or not
    int                vlinear; //indicate whether vorder is 2 or not
};
#endif /* __gluslicer_h_ */