blob: ad864cadd5257446952b62db53f80bc61e24a936 [file] [log] [blame] [edit]
//========================================================================
//
// 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