KDE 3.5 API Reference kviewshell
MMRDecoder.h
Go to the documentation of this file.00001 //C- -*- C++ -*- 00002 //C- ------------------------------------------------------------------- 00003 //C- DjVuLibre-3.5 00004 //C- Copyright (c) 2002 Leon Bottou and Yann Le Cun. 00005 //C- Copyright (c) 2001 AT&T 00006 //C- 00007 //C- This software is subject to, and may be distributed under, the 00008 //C- GNU General Public License, Version 2. The license should have 00009 //C- accompanied the software or you may obtain a copy of the license 00010 //C- from the Free Software Foundation at http://www.fsf.org . 00011 //C- 00012 //C- This program is distributed in the hope that it will be useful, 00013 //C- but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 //C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 //C- GNU General Public License for more details. 00016 //C- 00017 //C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library 00018 //C- distributed by Lizardtech Software. On July 19th 2002, Lizardtech 00019 //C- Software authorized us to replace the original DjVu(r) Reference 00020 //C- Library notice by the following text (see doc/lizard2002.djvu): 00021 //C- 00022 //C- ------------------------------------------------------------------ 00023 //C- | DjVu (r) Reference Library (v. 3.5) 00024 //C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved. 00025 //C- | The DjVu Reference Library is protected by U.S. Pat. No. 00026 //C- | 6,058,214 and patents pending. 00027 //C- | 00028 //C- | This software is subject to, and may be distributed under, the 00029 //C- | GNU General Public License, Version 2. The license should have 00030 //C- | accompanied the software or you may obtain a copy of the license 00031 //C- | from the Free Software Foundation at http://www.fsf.org . 00032 //C- | 00033 //C- | The computer code originally released by LizardTech under this 00034 //C- | license and unmodified by other parties is deemed "the LIZARDTECH 00035 //C- | ORIGINAL CODE." Subject to any third party intellectual property 00036 //C- | claims, LizardTech grants recipient a worldwide, royalty-free, 00037 //C- | non-exclusive license to make, use, sell, or otherwise dispose of 00038 //C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 00039 //C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 00040 //C- | General Public License. This grant only confers the right to 00041 //C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 00042 //C- | the extent such infringement is reasonably necessary to enable 00043 //C- | recipient to make, have made, practice, sell, or otherwise dispose 00044 //C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 00045 //C- | any greater extent that may be necessary to utilize further 00046 //C- | modifications or combinations. 00047 //C- | 00048 //C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY 00049 //C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 00050 //C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF 00051 //C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 00052 //C- +------------------------------------------------------------------ 00053 // 00054 // $Id: MMRDecoder.h,v 1.9 2003/11/07 22:08:22 leonb Exp $ 00055 // $Name: release_3_5_15 $ 00056 00057 #ifndef _MMRDECODER_H_ 00058 #define _MMRDECODER_H_ 00059 #ifdef HAVE_CONFIG_H 00060 #include "config.h" 00061 #endif 00062 #if NEED_GNUG_PRAGMAS 00063 # pragma interface 00064 #endif 00065 00066 00067 #include "GSmartPointer.h" 00068 00069 #ifdef HAVE_NAMESPACES 00070 namespace DJVU { 00071 # ifdef NOT_DEFINED // Just to fool emacs c++ mode 00072 } 00073 #endif 00074 #endif 00075 00076 class ByteStream; 00077 class JB2Image; 00078 00139 00140 00141 00142 #define MMRDECODER_HAS_SCANRUNS 1 00143 #define MMRDECODER_HAS_SCANRLE 1 00144 00145 00146 00151 class MMRDecoder : public GPEnabled 00152 { 00153 protected: 00154 MMRDecoder(const int width, const int height); 00155 void init(GP<ByteStream> gbs, const bool striped=false); 00156 public: 00162 static GP<JB2Image> decode(GP<ByteStream> gbs); 00163 00165 static bool decode_header(ByteStream &inp, 00166 int &width, int &height, int &invert); 00167 00168 public: 00170 ~MMRDecoder(); 00174 static GP<MMRDecoder> create(GP<ByteStream> gbs, 00175 const int width, const int height, 00176 const bool striped=false ); 00177 00184 const unsigned short *scanruns(const unsigned short **endptr=0); 00193 const unsigned char *scanrle(const bool invert, 00194 const unsigned char **endptr=0); 00195 #if 0 00196 00200 const unsigned char *scanline(); 00201 #endif 00202 private: 00203 int width; 00204 int height; 00205 int lineno; 00206 int striplineno; 00207 int rowsperstrip; 00208 unsigned char *line; 00209 GPBuffer<unsigned char> gline; 00210 unsigned short *lineruns; 00211 GPBuffer<unsigned short> glineruns; 00212 unsigned short *prevruns; 00213 GPBuffer<unsigned short> gprevruns; 00214 public: 00215 class VLSource; 00216 class VLTable; 00217 private: 00218 GP<VLSource> src; 00219 GP<VLTable> mrtable; 00220 GP<VLTable> wtable; 00221 GP<VLTable> btable; 00222 friend class VLSource; 00223 friend class VLTable; 00224 }; 00225 00226 00228 00229 00230 // ----------- 00231 00232 #ifdef HAVE_NAMESPACES 00233 } 00234 # ifndef NOT_USING_DJVU_NAMESPACE 00235 using namespace DJVU; 00236 # endif 00237 #endif 00238 #endif
