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133 lines
4.7 KiB
133 lines
4.7 KiB
//C- -------------------------------------------------------------------
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//C- DjVuLibre-3.5
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//C- Copyright (c) 2002 Leon Bottou and Yann Le Cun.
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//C- Copyright (c) 2001 AT&T
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//C-
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//C- This software is subject to, and may be distributed under, the
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//C- GNU General Public License, Version 2. The license should have
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//C- accompanied the software or you may obtain a copy of the license
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//C- from the Free Software Foundation at http://www.fsf.org .
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//C-
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//C- This program is distributed in the hope that it will be useful,
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//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
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//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//C- GNU General Public License for more details.
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//C-
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//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
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//C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech
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//C- Software authorized us to replace the original DjVu(r) Reference
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//C- Library notice by the following text (see doc/lizard2002.djvu):
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//C-
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//C- ------------------------------------------------------------------
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//C- | DjVu (r) Reference Library (v. 3.5)
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//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
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//C- | The DjVu Reference Library is protected by U.S. Pat. No.
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//C- | 6,058,214 and patents pending.
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//C- |
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//C- | This software is subject to, and may be distributed under, the
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//C- | GNU General Public License, Version 2. The license should have
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//C- | accompanied the software or you may obtain a copy of the license
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//C- | from the Free Software Foundation at http://www.fsf.org .
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//C- |
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//C- | The computer code originally released by LizardTech under this
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//C- | license and unmodified by other parties is deemed "the LIZARDTECH
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//C- | ORIGINAL CODE." Subject to any third party intellectual property
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//C- | claims, LizardTech grants recipient a worldwide, royalty-free,
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//C- | non-exclusive license to make, use, sell, or otherwise dispose of
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//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the
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//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU
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//C- | General Public License. This grant only confers the right to
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//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to
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//C- | the extent such infringement is reasonably necessary to enable
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//C- | recipient to make, have made, practice, sell, or otherwise dispose
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//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to
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//C- | any greater extent that may be necessary to utilize further
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//C- | modifications or combinations.
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//C- |
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//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
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//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
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//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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//C- +------------------------------------------------------------------
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//
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// $Id: JPEGDecoder.h,v 1.8 2003/11/07 22:08:22 leonb Exp $
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// $Name: release_3_5_15 $
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#ifndef _JPEGDECODER_H_
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#define _JPEGDECODER_H_
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#if NEED_GNUG_PRAGMAS
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# pragma interface
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#endif
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#ifdef NEED_JPEG_DECODER
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#include <string.h>
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#include <setjmp.h>
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#include "GSmartPointer.h"
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#ifdef HAVE_NAMESPACES
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namespace DJVU {
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# ifdef NOT_DEFINED // Just to fool emacs c++ mode
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}
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#endif
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#endif
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class ByteStream;
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class GPixmap;
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/** @name JPEGDecoder.h
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Files #"JPEGDecoder.h"# and #"JPEGDecoder.cpp"# implement an
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interface to the decoding subset of the IJG JPEG library.
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@memo
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Decoding interface to the IJG JPEG library.
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@version
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#$Id: JPEGDecoder.h,v 1.8 2003/11/07 22:08:22 leonb Exp $#
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@author
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Parag Deshmukh <parag@sanskrit.lz.att.com>
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*/
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//@{
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class GUTF8String;
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/** This class ensures namespace isolation. */
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class JPEGDecoder
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{
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public:
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class Impl;
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/** Decodes the JPEG formated ByteStream */
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static GP<GPixmap> decode(ByteStream & bs);
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static void decode(ByteStream & bs,GPixmap &pix);
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#ifdef LIBJPEGNAME
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static void *jpeg_lookup(const GUTF8String &name);
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static jpeg_error_mgr *jpeg_std_error(jpeg_error_mgr *x);
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static void jpeg_CreateDecompress(jpeg_decompress_struct *x,int v, size_t s);
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static void jpeg_destroy_decompress(j_decompress_ptr x);
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static int jpeg_read_header(j_decompress_ptr x,boolean y);
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static JDIMENSION jpeg_read_scanlines(j_decompress_ptr x,JSAMPARRAY y,JDIMENSION z);
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static boolean jpeg_finish_decompress(j_decompress_ptr x);
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static boolean jpeg_resync_to_restart(jpeg_decompress_struct *x,int d);
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static boolean jpeg_start_decompress(j_decompress_ptr x);
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#endif // LIBJPEGNAME
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};
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//@}
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#ifdef HAVE_NAMESPACES
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}
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# ifndef NOT_USING_DJVU_NAMESPACE
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using namespace DJVU;
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# endif
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#endif
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#endif // NEED_JPEG_DECODER
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#endif // _JPEGDECODER_H_
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