src/gdcmPixelConvert.h

   1 /*=========================================================================
   2
   3   Program:   gdcm
   4   Module:    $RCSfile: gdcmPixelConvert.h,v $
   5   Language:  C++
   6   Date:      $Date: 2004/10/08 16:27:20 $
   7   Version:   $Revision: 1.3 $
   8
   9   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  10   l'Image). All rights reserved. See Doc/License.txt or
  11   http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notices for more information.
  16
  17 =========================================================================*/
  18
  19
  20 #ifndef GDCMPIXELCONVERT_H
  21 #define GDCMPIXELCONVERTL_H
  22
  23 #include "gdcmCommon.h"
  24 #include "gdcmRLEFramesInfo.h"
  25
  26 /*
  27  * \brief Utility container for gathering the various forms the pixel data
  28  *        migth take during the user demanded processes.
  29  */
  30 class GDCM_EXPORT gdcmPixelConvert {
  31 friend class gdcmFile;
  32    /// Pixel data represented as RGB after color interpretation
  33    uint8_t* RGB;
  34    size_t   RGBSize;          //aka ImageDataSize
  35    /// Pixel data after decompression and bit/byte rearrangement.
  36    uint8_t* Uncompressed;
  37    size_t   UncompressedSize;
  38 public:
  39    gdcmPixelConvert();
  40    ~gdcmPixelConvert();
  41
  42    uint8_t* GetRGB() { return RGB; }
  43    void     SetRGBSize( size_t size ) { RGBSize = size; }
  44    size_t   GetRGBSize() { return RGBSize; }
  45    void     AllocateRGB();
  46
  47    uint8_t* GetUncompressed() { return Uncompressed; }
  48    void     SetUncompressedSize( size_t size ) { UncompressedSize = size; }
  49    size_t   GetUncompressedSize() { return UncompressedSize; }
  50    void     AllocateUncompressed();
  51
  52    void Squeeze();
  53 //////////////////////////////////////////////////////////
  54 // In progress
  55 bool ReadAndUncompress12Bits( FILE* filePointer,
  56                               size_t uncompressedSize,
  57                               size_t PixelNumber );
  58 bool ReadUncompressed( FILE* filePointer,
  59                        size_t uncompressedSize,
  60                        size_t expectedSize );
  61 bool ConvertGrayAndLutToRGB( uint8_t *lutRGBA );
  62 bool ReadAndUncompressRLE8Bits(FILE* fp, size_t uncompressedSize );
  63 static bool UncompressRLE16BitsFromRLE8Bits(
  64                        int XSize,
  65                        int YSize,
  66                        int NumberOfFrames,
  67                        uint8_t* fixMemUncompressed );
  68 static bool ReadAndUncompressRLEFragment(
  69                                     uint8_t* decodedZone,
  70                                     long fragmentSize,
  71                                     long uncompressedSegmentSize,
  72                                     FILE* fp );
  73 static bool gdcm_read_RLE_file   ( void* image_buffer,
  74                                    int XSize,
  75                                    int YSize,
  76                                    int ZSize,
  77                                    int BitsAllocated,
  78                                    gdcmRLEFramesInfo* RLEInfo,
  79                                    FILE* fp );
  80
  81
  82
  83
  84 };
  85
  86 //-----------------------------------------------------------------------------
  87 #endif