| /* |
| ** 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: 2012/03/29 17:22:18 $ $Revision: 1.1.1.1 $ |
| * $Header: /cvs/bao-parsec/pkgs/libs/mesa/src/src/glu/sgi/libnurbs/internals/bufpool.cc,v 1.1.1.1 2012/03/29 17:22:18 uid42307 Exp $ |
| */ |
| |
| #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; |
| } |