Added MesaLib-7.6

1 files changed, 62 insertions, 0 deletions

diff --git a/mesalib/src/glu/sgi/libnurbs/internals/knotvector.h b/mesalib/src/glu/sgi/libnurbs/internals/knotvector.h
new file mode 100644
index 000000000..85b162f6f
--- /dev/null
+++ b/mesalib/src/glu/sgi/libnurbs/internals/knotvector.h
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+/*
+ * knotvector.h
+ *
+ */
+
+#ifndef __gluknotvector_h_
+#define __gluknotvector_h_
+
+#include "types.h"
+
+struct Knotvector { /* a knot vector */
+			Knotvector( void );
+			~Knotvector( void );
+    void		init( long, long, long, INREAL * );
+    int			validate( void );
+    void 		show( const char * );
+
+    long		order;		/* order of spline  */
+    long		knotcount;	/* number of knots  */
+    long		stride;		/* bytes between points */
+    Knot *		knotlist;	/* global knot vector */
+};
+
+/* tolerance to test knot coincidence */
+#define TOLERANCE 		1.0e-5
+
+inline int 
+identical( Knot x, Knot y )
+{
+    return ((x-y) < TOLERANCE) ? 1 : 0;
+}
+#endif /* __gluknotvector_h_ */