-// gdcmFile.h
+/*=========================================================================
+
+ Program: gdcm
+ Module: $RCSfile: gdcmFile.h,v $
+ Language: C++
+ Date: $Date: 2004/10/20 14:30:40 $
+ Version: $Revision: 1.64 $
+
+ Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
+ l'Image). All rights reserved. See Doc/License.txt or
+ http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the above copyright notices for more information.
+
+=========================================================================*/
#ifndef GDCMFILE_H
#define GDCMFILE_H
#include "gdcmCommon.h"
#include "gdcmHeader.h"
+#include "gdcmPixelConvert.h"
-////////////////////////////////////////////////////////////////////////////
-// In addition to Dicom header exploration, this class is designed
-// for accessing the image/volume content. One can also use it to
-// write Dicom files.
-////// QUESTION: this looks still like an open question whether the
-////// relationship between a gdcmFile and gdcmHeader is of
-////// type IS_A or HAS_A !
+namespace gdcm
+{
-class GDCM_EXPORT gdcmFile: public gdcmHeader
+//-----------------------------------------------------------------------------
+/*
+ * In addition to Dicom header exploration, this class is designed
+ * for accessing the image/volume content. One can also use it to
+ * write Dicom/ACR-NEMA/RAW files.
+ */
+class GDCM_EXPORT File
{
-private:
- // QUESTION :
- // Data pointe sur quoi?
- // sur les Pixels lus?
- // --> j'ajoute un champ public : Pixels
- // (il faudra que l'utilisateur puisse modifier les pixels ?)
-
- void* Data;
- int Parsed; // weather allready parsed
- string OrigFileName; // To avoid file overwrite
public:
- // je ne suis pas sur d'avoir compris *où* il serait légitime de ranger ca.
- // on pourra tjs le deplacer, et mettre des accesseurs
- void * Pixels;
- size_t lgrTotale;
-
- // Constructor dedicated to writing a new DICOMV3 part10 compliant
- // file (see SetFileName, SetDcmTag and Write)
- // TODO Swig gdcmFile();
- // Opens (in read only and when possible) an existing file and checks
- // for DICOM compliance. Returns NULL on failure.
- // Note: the in-memory representation of all available tags found in
- // the DICOM header is post-poned to first header information access.
- // This avoid a double parsing of public part of the header when
- // one sets an a posteriori shadow dictionary (efficiency can be
- // seen as a side effect).
-
- gdcmFile(string & filename);
-
- // For promotion (performs a deepcopy of pointed header object)
- // TODO Swig gdcmFile(gdcmHeader* header);
- // TODO Swig ~gdcmFile();
-
- // On writing purposes. When instance was created through
- // gdcmFile(string filename) then the filename argument MUST be different
- // from the constructor's one (no overwriting allowed).
- // TODO Swig int SetFileName(string filename);
-
- // Allocates necessary memory, copies the data (image[s]/volume[s]) to
- // newly allocated zone and return a pointer to it:
-
- void * GetImageData();
-
- // Returns size (in bytes) of required memory to contain data
- // represented in this file.
-
- size_t GetImageDataSize();
-
- // Copies (at most MaxSize bytes) of data to caller's memory space.
- // Returns an error code on failure (if MaxSize is not big enough)
-
- int GetImageDataIntoVector(void* destination, size_t MaxSize );
-
- // Allocates ExpectedSize bytes of memory at this->Data and copies the
- // pointed data to it.
-
- // Question :
- // Pourquoi dupliquer les pixels, alors qu'on les a deja en mémoire,
- // et que Data (dans le gdcmHeader) est un pointeur ?
-
- int SetImageData (void * Data, size_t ExpectedSize);
- void SetImageDataSize (size_t ExpectedSize);
-
- // Push to disk.
- // A NE PAS OUBLIER : que fait-on en cas de Transfert Syntax (dans l'entete)
- // incohérente avec l'ordre des octets en mémoire
- // TODO Swig int Write();
-
- // Ecrit sur disque les pixels d'UNE image
- // Aucun test n'est fait sur l'"Endiannerie" du processeur.
- // Ca sera à l'utilisateur d'appeler son Reader correctement
-
- int WriteRawData (string nomFichier);
- int WriteDcm (string nomFichier);
- int WriteDcmExplVR (string nomFichier);
- int WriteAcr (string nomFichier);
+ File( Header* header );
+ File( std::string const& filename );
+
+ virtual ~File();
+
+ /// Accessor to \ref Header
+ Header* GetHeader() { return HeaderInternal; }
+
+ int ComputeDecompressedPixelDataSizeFromHeader();
+
+ /// Accessor to \ref ImageDataSize
+ size_t GetImageDataSize(){ return ImageDataSize; };
+
+ /// Accessor to \ref ImageDataSizeRaw
+ size_t GetImageDataSizeRaw(){ return ImageDataSizeRaw; };
+
+ /// Accessor to \ref PixelConverter
+ PixelConvert* GetPixelConverter(){ return PixelConverter; };
+
+ uint8_t* GetImageData();
+ size_t GetImageDataIntoVector(void* destination, size_t maxSize);
+ uint8_t* GetImageDataRaw();
+ void GetImageDataIntoVectorRaw(void* destination, size_t maxSize);
+
+ // see also Header::SetImageDataSize ?!?
+ bool SetImageData (uint8_t* data, size_t expectedSize);
+
+ /// \todo When the caller is aware we simply point to the data:
+ /// int SetImageDataNoCopy (void* Data, size_t ExpectedSize);
+
+ // Write pixels of ONE image on hard drive
+ // No test is made on processor "endianity"
+ // The user must call his reader correctly
+ bool WriteRawData (std::string const& fileName);
+ bool WriteDcmImplVR(std::string const& fileName);
+ bool WriteDcmExplVR(std::string const& fileName);
+ bool WriteAcr (std::string const& fileName);
+
+ virtual bool SetEntryByNumber(std::string const& content,
+ uint16_t group, uint16_t element)
+ {
+ HeaderInternal->SetEntryByNumber(content,group,element);
+ return true;
+ }
+ uint8_t* GetLutRGBA();
+
+protected:
+ bool WriteBase(std::string const& fileName, FileType type);
+
+private:
+ void Initialise();
+
+ // For JPEG 8 Bits, body in file gdcmJpeg.cxx
+ bool gdcm_write_JPEG_file (FILE* fp, void* image_buffer,
+ int image_width, int image_heigh,
+ int quality);
+
+ // For JPEG 12 Bits, body in file gdcmJpeg12.cxx
+ bool gdcm_write_JPEG_file12 (FILE* fp, void* image_buffer,
+ int image_width, int image_height,
+ int quality);
+
+ void SaveInitialValues(); // will belong to the future PixelData class
+ void RestoreInitialValues(); // will belong to the future PixelData class
+ void DeleteInitialValues(); // will belong to the future PixelData class
+
+private:
+// members variables:
+
+ /// Header to use to load the file
+ Header *HeaderInternal;
+
+ /// \brief Whether the underlying \ref Header was loaded by
+ /// the constructor or passed to the constructor. When false
+ /// the destructor is in charge of deletion.
+ bool SelfHeader;
+
+ /// Wether already parsed or not
+ bool Parsed;
+
+ /// Utility pixel converter
+ PixelConvert* PixelConverter;
+
+/// FIXME
+// --------------- Will be moved to a PixelData class
+//
+
+ /// \brief to hold the Pixels (when read)
+ uint8_t* Pixel_Data; // (was PixelData)
+
+ /// \brief Size (in bytes) of required memory to hold the Gray Level pixels
+ /// represented in this file. This is used when the user DOESN'T want
+ /// the RGB pixels image when it's stored as a PALETTE COLOR image
+ size_t ImageDataSizeRaw;
+
+ /// \brief Size (in bytes) of requited memory to hold the the pixels
+ /// of this image in it's RGB convertion either from:
+ /// - Plane R, Plane G, Plane B
+ /// - Grey Plane + Palette Color
+ /// - YBR Pixels (or from RGB Pixels, as well)
+ size_t ImageDataSize;
+
+ /// \brief ==1 if GetImageDataRaw was used
+ /// ==0 if GetImageData was used
+ /// ==-1 if ImageData never read
+ int PixelRead;
+
+ /// \brief length of the last allocated area devoided to receive Pixels
+ /// ( to allow us not to (free + new) if un necessary )
+ size_t LastAllocatedPixelDataLength;
+
+ // Initial values of some fields that can be modified during reading process
+ // if user asked to transform gray level + LUT image into RGB image
+
+ /// \brief Samples Per Pixel (0x0028,0x0002), as found on disk
+ std::string InitialSpp;
+ /// \brief Photometric Interpretation (0x0028,0x0004), as found on disk
+ std::string InitialPhotInt;
+ /// \brief Planar Configuration (0x0028,0x0006), as found on disk
+ std::string InitialPlanConfig;
+
+ // Initial values of some fields that can be modified during reading process
+ // if the image was a 'strange' ACR-NEMA
+ // (Bits Allocated=12, High Bit not equal to Bits stored +1)
+ /// \brief Bits Allocated (0x0028,0x0100), as found on disk
+ std::string InitialBitsAllocated;
+ /// \brief High Bit (0x0028,0x0102), as found on disk
+ std::string InitialHighBit;
+
+ // some DocEntry that can be moved out of the H table during reading process
+ // if user asked to transform gray level + LUT image into RGB image
+ // We keep a pointer on them for a future use.
+
+ /// \brief Red Palette Color Lookup Table Descriptor 0028 1101 as read
+ DocEntry* InitialRedLUTDescr;
+ /// \brief Green Palette Color Lookup Table Descriptor 0028 1102 as read
+ DocEntry* InitialGreenLUTDescr;
+ /// \brief Blue Palette Color Lookup Table Descriptor 0028 1103 as read
+ DocEntry* InitialBlueLUTDescr;
+
+ /// \brief Red Palette Color Lookup Table Data 0028 1201 as read
+ DocEntry* InitialRedLUTData;
+ /// \brief Green Palette Color Lookup Table Data 0028 1202 as read
+ DocEntry* InitialGreenLUTData;
+ /// \brief Blue Palette Color Lookup Table Data 0028 1203 as read
+ DocEntry* InitialBlueLUTData;
+
+//
+// --------------- end of future PixelData class
+//
+
};
+} // end namespace gdcm
+//-----------------------------------------------------------------------------
#endif
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff