SGI SI GLU library

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diff --git a/src/glu/sgi/libnurbs/internals/trimregion.h b/src/glu/sgi/libnurbs/internals/trimregion.h
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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.
+*/
+
+/*
+ * trimregion.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/trimregion.h,v 1.1 2001/03/17 00:25:41 brianp Exp $
+ */
+
+#ifndef __glutrimregion_h_
+#define __glutrimregion_h_
+
+#include "trimline.h"
+#include "gridline.h"
+#include "uarray.h"
+
+class Arc;
+class Backend;
+
+class TrimRegion {
+public:
+			TrimRegion();
+    Trimline		left;
+    Trimline		right;
+    Gridline		top;
+    Gridline		bot;
+    Uarray		uarray;
+
+    void		init( REAL );
+    void		advance( REAL, REAL, REAL );
+    void		setDu( REAL );
+    void		init( long, Arc_ptr );
+    void		getPts( Arc_ptr );
+    void		getPts( Backend & );
+    void		getGridExtent( TrimVertex *, TrimVertex * );
+    void		getGridExtent( void );
+    int			canTile( void );
+private:
+    REAL		oneOverDu;
+};
+
+inline void
+TrimRegion::init( REAL vval ) 
+{
+    bot.vval = vval;
+}
+
+inline void
+TrimRegion::advance( REAL topVindex, REAL botVindex, REAL botVval )
+{
+    top.vindex	= (long) topVindex;
+    bot.vindex	= (long) botVindex;
+    top.vval	= bot.vval;
+    bot.vval	= botVval;
+    top.ustart	= bot.ustart;
+    top.uend	= bot.uend;
+}
+#endif /* __glutrimregion_h_ */