diff options
Diffstat (limited to 'kviewshell/plugins/djvu/libdjvu/DjVuGlobalMemory.cpp')
| -rw-r--r-- | kviewshell/plugins/djvu/libdjvu/DjVuGlobalMemory.cpp | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/kviewshell/plugins/djvu/libdjvu/DjVuGlobalMemory.cpp b/kviewshell/plugins/djvu/libdjvu/DjVuGlobalMemory.cpp new file mode 100644 index 00000000..1c684336 --- /dev/null +++ b/kviewshell/plugins/djvu/libdjvu/DjVuGlobalMemory.cpp @@ -0,0 +1,306 @@ +//C- -*- C++ -*- +//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 + |