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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
commita0c4815433ccd57322f4f7703ca35e9ccfa59250 (patch)
treef5213802ec12adb86ec3136001c1c29fe5343700 /mesalib/src/glu/sgi/libnurbs/internals/trimvertpool.cc
parentc73dc01b6de45612b24dc2dd34fba24d81ebf46c (diff)
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Added MesaLib-7.6
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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.
+*/
+
+/*
+ * trimvertexpool.c++
+ *
+ */
+
+#include "glimports.h"
+#include "myassert.h"
+#include "mystdio.h"
+#include "mystring.h"
+#include "trimvertex.h"
+#include "trimvertpool.h"
+#include "bufpool.h"
+
+/*----------------------------------------------------------------------------
+ * TrimVertexPool::TrimVertexPool
+ *----------------------------------------------------------------------------
+ */
+TrimVertexPool::TrimVertexPool( void )
+ : pool( sizeof(TrimVertex)*3, 32, "Threevertspool" )
+{
+ // initialize array of pointers to vertex lists
+ nextvlistslot = 0;
+ vlistsize = INIT_VERTLISTSIZE;
+ vlist = new TrimVertex_p[vlistsize];
+}
+
+/*----------------------------------------------------------------------------
+ * TrimVertexPool::~TrimVertexPool
+ *----------------------------------------------------------------------------
+ */
+TrimVertexPool::~TrimVertexPool( void )
+{
+ // free all arrays of TrimVertices vertices
+ while( nextvlistslot ) {
+ delete [] vlist[--nextvlistslot];
+ }
+
+ // reallocate space for array of pointers to vertex lists
+ if( vlist ) delete[] vlist;
+}
+
+/*----------------------------------------------------------------------------
+ * TrimVertexPool::clear
+ *----------------------------------------------------------------------------
+ */
+void
+TrimVertexPool::clear( void )
+{
+ // reinitialize pool of 3 vertex arrays
+ pool.clear();
+
+ // free all arrays of TrimVertices vertices
+ while( nextvlistslot ) {
+ delete [] vlist[--nextvlistslot];
+ vlist[nextvlistslot] = 0;
+ }
+
+ // reallocate space for array of pointers to vertex lists
+ if( vlist ) delete[] vlist;
+ vlist = new TrimVertex_p[vlistsize];
+}
+
+
+/*----------------------------------------------------------------------------
+ * TrimVertexPool::get - allocate a vertex list
+ *----------------------------------------------------------------------------
+ */
+TrimVertex *
+TrimVertexPool::get( int n )
+{
+ TrimVertex *v;
+ if( n == 3 ) {
+ v = (TrimVertex *) pool.new_buffer();
+ } else {
+ if( nextvlistslot == vlistsize ) {
+ vlistsize *= 2;
+ TrimVertex_p *nvlist = new TrimVertex_p[vlistsize];
+ memcpy( nvlist, vlist, nextvlistslot * sizeof(TrimVertex_p) );
+ if( vlist ) delete[] vlist;
+ vlist = nvlist;
+ }
+ v = vlist[nextvlistslot++] = new TrimVertex[n];
+ }
+ return v;
+}