SGI SI GLU library

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diff --git a/src/glu/sgi/libnurbs/internals/bufpool.cc b/src/glu/sgi/libnurbs/internals/bufpool.cc
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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.
+*/
+
+/*
+ *  bufpool.c++
+ *
+ * $Date: 2001/03/17 00:25:40 $ $Revision: 1.1 $
+ * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/bufpool.cc,v 1.1 2001/03/17 00:25:40 brianp Exp $
+ */
+
+#include "glimports.h"
+#include "myassert.h"
+#include "bufpool.h"
+
+
+/*-----------------------------------------------------------------------------
+ * Pool - allocate a new pool of buffers
+ *-----------------------------------------------------------------------------
+ */
+Pool::Pool( int _buffersize, int initpoolsize, char *n )
+{
+    buffersize= (_buffersize < sizeof(Buffer)) ? sizeof(Buffer)	: _buffersize;
+    initsize	= initpoolsize * buffersize;
+    nextsize	= initsize;
+    name	= n;
+    magic	= is_allocated;
+    nextblock	= 0;
+    curblock	= 0;
+    freelist	= 0;
+    nextfree	= 0;
+}
+
+/*-----------------------------------------------------------------------------
+ * ~Pool - free a pool of buffers and the pool itself
+ *-----------------------------------------------------------------------------
+ */
+
+Pool::~Pool( void )
+{
+    assert( (this != 0) && (magic == is_allocated) );
+
+    while( nextblock ) {
+	delete [] blocklist[--nextblock];
+        blocklist[nextblock] = 0;
+    }
+    magic = is_free;
+}
+
+
+void Pool::grow( void )
+{
+    assert( (this != 0) && (magic == is_allocated) );
+    curblock = new char[nextsize];
+    blocklist[nextblock++] = curblock;
+    nextfree = nextsize;
+    nextsize *= 2;
+}
+
+/*-----------------------------------------------------------------------------
+ * Pool::clear - free buffers associated with pool but keep pool 
+ *-----------------------------------------------------------------------------
+ */
+
+void 
+Pool::clear( void )
+{
+    assert( (this != 0) && (magic == is_allocated) );
+
+    while( nextblock ) {
+	delete [] blocklist[--nextblock];
+	blocklist[nextblock] = 0;
+    }
+    curblock	= 0;
+    freelist	= 0;
+    nextfree	= 0;
+    if( nextsize > initsize )
+        nextsize /= 2;
+}