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+/*
+** 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.
+*/
+
+/*
+ * quilt.h
+ *
+ * $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $
+ * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/quilt.h,v 1.1 2001/03/17 00:25:41 brianp Exp $
+ */
+
+#ifndef __gluquilt_h_
+#define __gluquilt_h_
+
+#include "defines.h"
+#include "bufpool.h"
+#include "types.h"
+
+class Backend;
+class Mapdesc;
+class Flist;
+class Knotvector;
+
+/* constants for memory allocation of NURBS to Bezier conversion */
+#define MAXDIM 2
+
+struct Quiltspec { /* a specification for a dimension of a quilt */
+ int stride; /* words between points */
+ int width; /* number of segments */
+ int offset; /* words to first point */
+ int order; /* order */
+ int index; /* current segment number */
+ int bdry[2]; /* boundary edge flag */
+ REAL step_size;
+ Knot * breakpoints;
+};
+
+typedef Quiltspec *Quiltspec_ptr;
+
+class Quilt : public PooledObj { /* an array of bezier patches */
+public:
+ Quilt( Mapdesc * );
+ Mapdesc * mapdesc; /* map descriptor */
+ REAL * cpts; /* control points */
+ Quiltspec qspec[MAXDIM]; /* the dimensional data */
+ Quiltspec_ptr eqspec; /* qspec trailer */
+ Quilt *next; /* next quilt in linked list */
+
+public:
+ void deleteMe( Pool& );
+ void toBezier( Knotvector &, INREAL *, long );
+ void toBezier( Knotvector &, Knotvector &, INREAL *, long );
+ void select( REAL *, REAL * );
+ int getDimension( void ) { return eqspec - qspec; }
+ void download( Backend & );
+ void downloadAll( REAL *, REAL *, Backend & );
+ int isCulled( void );
+ void getRange( REAL *, REAL *, Flist&, Flist & );
+ void getRange( REAL *, REAL *, int, Flist & );
+ void getRange( REAL *, REAL *, Flist& );
+ void findRates( Flist& slist, Flist& tlist, REAL[2] );
+ void findSampleRates( Flist& slist, Flist& tlist );
+ void show();
+};
+
+typedef class Quilt *Quilt_ptr;
+
+#endif /* __gluquilt_h_ */