You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
306 lines
8.0 KiB
306 lines
8.0 KiB
//C- -------------------------------------------------------------------
|
|
//C- DjVuLibre-3.5
|
|
//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
|
|
//C- Copyright (c) 2001 AT&T
|
|
//C-
|
|
//C- This software is subject to, and may be distributed under, the
|
|
//C- GNU General Public License, Version 2. The license should have
|
|
//C- accompanied the software or you may obtain a copy of the license
|
|
//C- from the Free Software Foundation at http://www.fsf.org .
|
|
//C-
|
|
//C- This program is distributed in the hope that it will be useful,
|
|
//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
//C- GNU General Public License for more details.
|
|
//C-
|
|
//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
|
|
//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
|
|
//C- Software authorized us to replace the original DjVu(r) Reference
|
|
//C- Library notice by the following text (see doc/lizard2002.djvu):
|
|
//C-
|
|
//C- ------------------------------------------------------------------
|
|
//C- | DjVu (r) Reference Library (v. 3.5)
|
|
//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
|
|
//C- | The DjVu Reference Library is protected by U.S. Pat. No.
|
|
//C- | 6,058,214 and patents pending.
|
|
//C- |
|
|
//C- | This software is subject to, and may be distributed under, the
|
|
//C- | GNU General Public License, Version 2. The license should have
|
|
//C- | accompanied the software or you may obtain a copy of the license
|
|
//C- | from the Free Software Foundation at http://www.fsf.org .
|
|
//C- |
|
|
//C- | The computer code originally released by LizardTech under this
|
|
//C- | license and unmodified by other parties is deemed "the LIZARDTECH
|
|
//C- | ORIGINAL CODE." Subject to any third party intellectual property
|
|
//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
|
|
//C- | non-exclusive license to make, use, sell, or otherwise dispose of
|
|
//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
|
|
//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
|
|
//C- | General Public License. This grant only confers the right to
|
|
//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
|
|
//C- | the extent such infringement is reasonably necessary to enable
|
|
//C- | recipient to make, have made, practice, sell, or otherwise dispose
|
|
//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
|
|
//C- | any greater extent that may be necessary to utilize further
|
|
//C- | modifications or combinations.
|
|
//C- |
|
|
//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
|
|
//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
|
|
//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
|
|
//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
|
|
//C- +------------------------------------------------------------------
|
|
//
|
|
// $Id: DjVuGlobalMemory.cpp,v 1.6 2003/11/07 22:08:20 leonb Exp $
|
|
// $Name: release_3_5_15 $
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
#if NEED_GNUG_PRAGMAS
|
|
# pragma implementation
|
|
#endif
|
|
|
|
#ifdef NEED_DJVU_MEMORY
|
|
#ifndef NEED_DJVU_MEMORY_IMPLEMENTATION
|
|
#define NEED_DJVU_MEMORY_IMPLEMENTATION
|
|
#endif /* NEED_DJVU_MEMORY_IMPLEMENTATION */
|
|
|
|
#include "DjVuGlobal.h"
|
|
#include "GException.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "debug.h"
|
|
|
|
#ifdef UNIX
|
|
djvu_delete_callback *
|
|
_djvu_delete_ptr=(djvu_delete_callback *)&(operator delete);
|
|
djvu_delete_callback *
|
|
_djvu_deleteArray_ptr=(djvu_delete_callback *)&(operator delete []);
|
|
djvu_new_callback *
|
|
_djvu_new_ptr=(djvu_new_callback *)&(operator new);
|
|
djvu_new_callback *
|
|
_djvu_newArray_ptr=(djvu_new_callback *)&(operator new []);
|
|
#endif
|
|
|
|
static djvu_delete_callback *_djvu_delete_handler = 0;
|
|
static djvu_new_callback *_djvu_new_handler = 0;
|
|
static djvu_delete_callback *deleteArray_handler = 0;
|
|
static djvu_new_callback *newArray_handler = 0;
|
|
|
|
static djvu_free_callback *_djvu_free_handler = 0;
|
|
static djvu_realloc_callback *_djvu_realloc_handler = 0;
|
|
static djvu_calloc_callback *_djvu_calloc_handler = 0;
|
|
static djvu_malloc_callback *_djvu_malloc_handler = 0;
|
|
|
|
int
|
|
djvu_memoryObject_callback (
|
|
djvu_delete_callback* delete_handler,
|
|
djvu_new_callback* new_handler
|
|
) {
|
|
if(delete_handler && new_handler)
|
|
{
|
|
#ifdef UNIX
|
|
_djvu_new_ptr=&_djvu_new;
|
|
_djvu_delete_ptr=&_djvu_delete;
|
|
#endif
|
|
_djvu_delete_handler=delete_handler;
|
|
_djvu_new_handler=new_handler;
|
|
return 1;
|
|
}else
|
|
{
|
|
#ifdef UNIX
|
|
_djvu_new_ptr=(djvu_new_callback *)&(operator new);
|
|
_djvu_delete_ptr=(djvu_delete_callback *)&(operator delete);
|
|
#endif
|
|
_djvu_delete_handler=0;
|
|
_djvu_new_handler=0;
|
|
return (delete_handler||new_handler)?0:1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
djvu_set_memory_callbacks
|
|
(
|
|
djvu_free_callback *free_handler,
|
|
djvu_realloc_callback *realloc_handler,
|
|
djvu_malloc_callback *malloc_handler,
|
|
djvu_calloc_callback *calloc_handler
|
|
)
|
|
{
|
|
if(free_handler && realloc_handler && malloc_handler)
|
|
{
|
|
#ifdef UNIX
|
|
_djvu_new_ptr=(djvu_new_callback *)&_djvu_new;
|
|
_djvu_delete_ptr=(djvu_delete_callback *)&_djvu_delete;
|
|
#endif
|
|
_djvu_new_handler=(djvu_new_callback *)malloc_handler;
|
|
_djvu_delete_handler=(djvu_delete_callback *)free_handler;
|
|
_djvu_malloc_handler=(djvu_malloc_callback *)malloc_handler;
|
|
_djvu_free_handler=(djvu_free_callback *)free_handler;
|
|
_djvu_realloc_handler=(djvu_realloc_callback *)realloc_handler;
|
|
if(calloc_handler)
|
|
{
|
|
_djvu_calloc_handler=(djvu_calloc_callback *)&calloc_handler;
|
|
}else
|
|
{
|
|
_djvu_calloc_handler=0;
|
|
}
|
|
return 1;
|
|
}else
|
|
{
|
|
#ifdef UNIX
|
|
_djvu_new_ptr=(djvu_new_callback *)&(operator new);
|
|
_djvu_delete_ptr=(djvu_delete_callback *)&(operator delete);
|
|
#endif
|
|
_djvu_delete_handler=0;
|
|
_djvu_new_handler=0;
|
|
_djvu_malloc_handler=0;
|
|
_djvu_free_handler=0;
|
|
_djvu_realloc_handler=0;
|
|
_djvu_calloc_handler=0;
|
|
return !(_djvu_malloc_handler
|
|
||_djvu_free_handler
|
|
||_djvu_realloc_handler
|
|
||_djvu_calloc_handler);
|
|
}
|
|
}
|
|
|
|
DJVUAPI void *
|
|
_djvu_new(size_t siz)
|
|
{
|
|
void *ptr;
|
|
#ifndef UNIX
|
|
if(_djvu_new_handler)
|
|
{
|
|
#endif
|
|
if(!(ptr=(*_djvu_new_handler)(siz?siz:1)))
|
|
{
|
|
G_THROW( ERR_MSG("DjVuGlobalMemory.exhausted") );
|
|
}
|
|
#ifndef UNIX
|
|
}else
|
|
{
|
|
ptr=::operator new(siz?siz:1);
|
|
}
|
|
#endif
|
|
return ptr;
|
|
}
|
|
|
|
void
|
|
_djvu_delete(void *addr)
|
|
{
|
|
if(addr)
|
|
{
|
|
if(_djvu_delete_handler)
|
|
{
|
|
(*_djvu_delete_handler)(addr);
|
|
}else
|
|
{
|
|
operator delete(addr);
|
|
}
|
|
}
|
|
}
|
|
|
|
void *
|
|
_djvu_newArray(size_t siz)
|
|
{
|
|
void *ptr;
|
|
#ifndef UNIX
|
|
if(newArray_handler)
|
|
{
|
|
#endif
|
|
if(!(ptr=(*newArray_handler)(siz?siz:1)))
|
|
{
|
|
G_THROW( ERR_MSG("DjVuGlobalMemory.exhausted") );
|
|
}
|
|
#ifndef UNIX
|
|
}else
|
|
{
|
|
ptr=::new unsigned char[siz?siz:1];
|
|
}
|
|
#endif
|
|
return ptr;
|
|
}
|
|
|
|
void
|
|
_djvu_deleteArray(void *addr)
|
|
{
|
|
if(addr)
|
|
{
|
|
if(deleteArray_handler)
|
|
{
|
|
(*deleteArray_handler)(addr);
|
|
}else
|
|
{
|
|
#ifdef WIN32
|
|
delete [] (addr) ;
|
|
#else
|
|
operator delete [] (addr);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
void *
|
|
_djvu_malloc(size_t siz)
|
|
{
|
|
DEBUG_MSG("_djvu_malloc: siz="<<siz<<"\n");
|
|
return _djvu_malloc_handler?(*_djvu_malloc_handler)(siz?siz:1):malloc(siz?siz:1);
|
|
}
|
|
|
|
void *
|
|
_djvu_calloc(size_t siz, size_t items)
|
|
{
|
|
DEBUG_MSG("_djvu_calloc: siz="<<siz<<" items="<<items<<"\n");
|
|
void *ptr;
|
|
if( _djvu_calloc_handler )
|
|
{
|
|
ptr = (*_djvu_calloc_handler)(siz?siz:1, items?items:1);
|
|
}else if( _djvu_malloc_handler )
|
|
{
|
|
if((ptr = (*_djvu_malloc_handler)((siz?siz:1)*(items?items:1)))&&siz&&items)
|
|
{
|
|
memset(ptr,0,siz*items);
|
|
}
|
|
}else
|
|
{
|
|
ptr = calloc(siz?siz:1, items?items:1);
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
void *
|
|
_djvu_realloc(void* ptr, size_t siz)
|
|
{
|
|
DEBUG_MSG("_djvu_realloc: ptr="<<ptr<<" siz="<<siz<<"\n");
|
|
void *newptr;
|
|
if( _djvu_realloc_handler )
|
|
{
|
|
newptr = (*_djvu_realloc_handler)(ptr, siz);
|
|
}else
|
|
{
|
|
newptr = realloc(ptr, siz?siz:1);
|
|
}
|
|
return newptr;
|
|
}
|
|
|
|
void
|
|
_djvu_free(void *ptr)
|
|
{
|
|
DEBUG_MSG("_djvu_free: ptr="<<ptr<<"\n");
|
|
if(ptr)
|
|
{
|
|
if( _djvu_free_handler )
|
|
{
|
|
(*_djvu_free_handler)(ptr);
|
|
}else
|
|
{
|
|
free(ptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|