text: /*
   * 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
   * SOFTWARE.
   *
   * Except as contained in this notice, the name of Silicon Graphics, Inc.
   * shall not be used in advertising or otherwise to promote the sale, use or
   * other dealings in this Software without prior written authorization from
   * Silicon Graphics, Inc.
   */
  
  /*
   * arctess.h
   *
   */
  
  #ifndef __gluarctess_h_
  #define __gluarctess_h_
  
  #include "defines.h"
  #include "types.h"
  #include "arc.h"
  
  struct BezierArc;
  class Pool;
  class TrimVertexPool;
  
  class ArcTessellator {
  public:
  			ArcTessellator( TrimVertexPool&, Pool& );
  			~ArcTessellator( void );
      void		bezier( Arc_ptr, REAL, REAL, REAL, REAL );
      void		pwl( Arc_ptr, REAL, REAL, REAL, REAL, REAL );
      void		pwl_left( Arc_ptr, REAL, REAL, REAL, REAL );
      void		pwl_right( Arc_ptr, REAL, REAL, REAL, REAL );
      void		pwl_top( Arc_ptr, REAL, REAL, REAL, REAL );
      void		pwl_bottom( Arc_ptr, REAL, REAL, REAL, REAL );
      void		tessellateLinear( Arc_ptr, REAL, REAL, int );
      void		tessellateNonlinear( Arc_ptr, REAL, REAL, int );
  private:
      static const REAL 	gl_Bernstein[][MAXORDER][MAXORDER];
      Pool&		pwlarcpool;
      TrimVertexPool&	trimvertexpool;
      static void		trim_power_coeffs( BezierArc *, REAL[MAXORDER], int );
  };
  
  #endif /* __gluarctess_h_ */
  