From a0c4815433ccd57322f4f7703ca35e9ccfa59250 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Thu, 8 Oct 2009 13:15:52 +0000
Subject: Added MesaLib-7.6

---
 mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc | 110 ++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc

(limited to 'mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc')

diff --git a/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc b/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc
new file mode 100644
index 000000000..8cc847ab2
--- /dev/null
+++ b/mesalib/src/glu/sgi/libnurbs/internals/bufpool.cc
@@ -0,0 +1,110 @@
+/*
+** 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++
+ *
+ */
+
+#include "glimports.h"
+#include "myassert.h"
+#include "bufpool.h"
+
+
+/*-----------------------------------------------------------------------------
+ * Pool - allocate a new pool of buffers
+ *-----------------------------------------------------------------------------
+ */
+Pool::Pool( int _buffersize, int initpoolsize, const char *n )
+{
+    if((unsigned)_buffersize < sizeof(Buffer))
+        buffersize = sizeof(Buffer);
+    else
+        buffersize = _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;
+}
-- 
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