source/libs/poppler/poppler-src/goo/JpegWriter.h

   1 //========================================================================
   2 //
   3 // JpegWriter.h
   4 //
   5 // This file is licensed under the GPLv2 or later
   6 //
   7 // Copyright (C) 2009 Stefan Thomas <thomas@eload24.com>
   8 // Copyright (C) 2010, 2012 Adrian Johnson <ajohnson@redneon.com>
   9 // Copyright (C) 2010 Jürg Billeter <j@bitron.ch>
  10 // Copyright (C) 2010 Harry Roberts <harry.roberts@midnight-labs.org>
  11 // Copyright (C) 2010 Brian Cameron <brian.cameron@oracle.com>
  12 // Copyright (C) 2011 Albert Astals Cid <aacid@kde.org>
  13 // Copyright (C) 2011 Thomas Freitag <Thomas.Freitag@alfa.de>
  14 //
  15 //========================================================================
  16
  17 #ifndef JPEGWRITER_H
  18 #define JPEGWRITER_H
  19
  20 #include "poppler-config.h"
  21
  22 #ifdef ENABLE_LIBJPEG
  23
  24 #include <sys/types.h>
  25 #include "ImgWriter.h"
  26
  27 struct JpegWriterPrivate;
  28
  29 class JpegWriter : public ImgWriter
  30 {
  31 public:
  32   /* RGB                 - 3 bytes/pixel
  33    * GRAY                - 1 byte/pixel
  34    * CMYK                - 4 bytes/pixel
  35    */
  36   enum Format { RGB, GRAY, CMYK };
  37
  38   JpegWriter(int quality, bool progressive, Format format = RGB);
  39   JpegWriter(Format format = RGB);
  40   ~JpegWriter();
  41
  42   bool init(FILE *f, int width, int height, int hDPI, int vDPI);
  43
  44   bool writePointers(unsigned char **rowPointers, int rowCount);
  45   bool writeRow(unsigned char **row);
  46
  47   bool close();
  48   bool supportCMYK();
  49
  50 private:
  51   JpegWriter(const JpegWriter &other);
  52   JpegWriter& operator=(const JpegWriter &other);
  53
  54   JpegWriterPrivate *priv;
  55 };
  56
  57 #endif
  58
  59 #endif