/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
**
** http://oss.sgi.com/projects/FreeB
**
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
**
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
**
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
*/

/*
 * coveandtiler.h
 *
 * $Date: 2001/07/16 15:46:42 $ $Revision: 1.2 $
 * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/coveandtiler.h,v 1.2 2001/07/16 15:46:42 brianp Exp $
 */

#ifndef __glucoveandtiler_h
#define __glucoveandtiler_h

#include "trimregion.h"
#include "trimvertex.h"
#include "gridvertex.h"

class Backend;
class GridTrimVertex;

class CoveAndTiler : virtual public TrimRegion {
public:
    			CoveAndTiler( Backend& );
    			~CoveAndTiler( void );
    void 		coveAndTile( void );
private:
    Backend&		backend;
    static const int 	MAXSTRIPSIZE;
    void		tile( long, long, long );
    void		coveLowerLeft( void );
    void		coveLowerRight( void );
    void		coveUpperLeft( void );
    void		coveUpperRight( void );
    void		coveUpperLeftNoGrid( TrimVertex * );
    void		coveUpperRightNoGrid( TrimVertex * );
    void		coveLowerLeftNoGrid( TrimVertex * );
    void		coveLowerRightNoGrid( TrimVertex * );
    void		coveLL( void );
    void		coveLR( void );
    void		coveUL( void );
    void		coveUR( void );
    inline void		output( GridTrimVertex& );
    inline void		output( GridVertex& );
    inline void		output( TrimVertex* );
};

#endif /* __glucoveandtiler_h */