rosapps/smartpdf/poppler/poppler/DCTStream.h

   1 //========================================================================
   2 //
   3 // DCTStream.h
   4 //
   5 // Copyright 1996-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifndef DCTSTREAM_H
  10 #define DCTSTREAM_H
  11 #include <config.h>
  12
  13 #ifdef USE_GCC_PRAGMAS
  14 #pragma interface
  15 #endif
  16
  17
  18 #ifdef USE_GCC_PRAGMAS
  19 #pragma implementation
  20 #endif
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <stddef.h>
  25 #ifndef WIN32
  26 #include <unistd.h>
  27 #endif
  28 #include <string.h>
  29 #include <ctype.h>
  30 #include "goo/gmem.h"
  31 #include "goo/gfile.h"
  32 #include "poppler-config.h"
  33 #include "Error.h"
  34 #include "Object.h"
  35 #include "Decrypt.h"
  36 #include "Stream.h"
  37
  38 extern "C" {
  39 #include <jpeglib.h>
  40 }
  41
  42 struct str_src_mgr {
  43     struct jpeg_source_mgr pub;
  44     JOCTET buffer;
  45     Stream *str;
  46     int index;
  47 };
  48
  49
  50 class DCTStream: public FilterStream {
  51 public:
  52
  53   DCTStream(Stream *strA);
  54   virtual ~DCTStream();
  55   virtual StreamKind getKind() { return strDCT; }
  56   virtual void reset();
  57   virtual int getChar();
  58   virtual int lookChar();
  59   virtual GooString *getPSFilter(int psLevel, char *indent);
  60   virtual GBool isBinary(GBool last = gTrue);
  61   Stream *getRawStream() { return str; }
  62
  63 private:
  64   void init();
  65
  66   unsigned int x;
  67   struct jpeg_decompress_struct cinfo;
  68   struct jpeg_error_mgr jerr;
  69   struct str_src_mgr src;
  70   JSAMPARRAY row_buffer;
  71 };
  72
  73 #endif