| //======================================================================== |
| // |
| // DCTStream.h |
| // |
| // This file is licensed under the GPLv2 or later |
| // |
| // Copyright 2005 Jeff Muizelaar <jeff@infidigm.net> |
| // Copyright 2005 Martin Kretzschmar <martink@gnome.org> |
| // Copyright 2005-2007, 2009-2011 Albert Astals Cid <aacid@kde.org> |
| // Copyright 2010 Carlos Garcia Campos <carlosgc@gnome.org> |
| // Copyright 2011 Daiki Ueno <ueno@unixuser.org> |
| // |
| //======================================================================== |
| |
| #ifndef DCTSTREAM_H |
| #define DCTSTREAM_H |
| |
| #ifdef USE_GCC_PRAGMAS |
| #pragma interface |
| #endif |
| |
| |
| #ifdef USE_GCC_PRAGMAS |
| #pragma implementation |
| #endif |
| |
| #include "poppler-config.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stddef.h> |
| #include <setjmp.h> |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #include <string.h> |
| #include <ctype.h> |
| #include "goo/gmem.h" |
| #include "goo/gfile.h" |
| #include "Error.h" |
| #include "Object.h" |
| #include "Decrypt.h" |
| #include "Stream.h" |
| |
| extern "C" { |
| #include <jpeglib.h> |
| } |
| |
| struct str_src_mgr { |
| struct jpeg_source_mgr pub; |
| JOCTET buffer; |
| Stream *str; |
| int index; |
| }; |
| |
| struct str_error_mgr { |
| struct jpeg_error_mgr pub; |
| jmp_buf setjmp_buffer; |
| }; |
| |
| class DCTStream: public FilterStream { |
| public: |
| |
| DCTStream(Stream *strA, int colorXformA); |
| virtual ~DCTStream(); |
| virtual StreamKind getKind() { return strDCT; } |
| virtual void reset(); |
| virtual int getChar(); |
| virtual int lookChar(); |
| virtual GooString *getPSFilter(int psLevel, char *indent); |
| virtual GBool isBinary(GBool last = gTrue); |
| |
| private: |
| void init(); |
| |
| virtual GBool hasGetChars() { return true; } |
| virtual int getChars(int nChars, Guchar *buffer); |
| |
| int colorXform; |
| JSAMPLE *current; |
| JSAMPLE *limit; |
| struct jpeg_decompress_struct cinfo; |
| struct str_error_mgr err; |
| struct str_src_mgr src; |
| JSAMPARRAY row_buffer; |
| }; |
| |
| #endif |