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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++
*
* $Date: 2003/05/08 15:47:00 $ $Revision: 1.2 $
* $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/trimvertpool.cc,v 1.2 2003/05/08 15:47:00 brianp Exp $
*/
#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;
}
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