gdcmImageCodec.h

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00001 /*=========================================================================
00002 
00003   Program: GDCM (Grassroots DICOM). A DICOM library
00004   Module:  $URL$
00005 
00006   Copyright (c) 2006-2010 Mathieu Malaterre
00007   All rights reserved.
00008   See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00015 #ifndef GDCMIMAGECODEC_H
00016 #define GDCMIMAGECODEC_H
00017 
00018 #include "gdcmCodec.h"
00019 #include "gdcmPhotometricInterpretation.h"
00020 #include "gdcmLookupTable.h"
00021 #include "gdcmSmartPointer.h"
00022 #include "gdcmPixelFormat.h"
00023 
00024 namespace gdcm
00025 {
00026 
00031 class GDCM_EXPORT ImageCodec : public Codec
00032 {
00033   friend class ImageChangePhotometricInterpretation;
00034 public:
00035   ImageCodec();
00036   ~ImageCodec();
00037   bool CanCode(TransferSyntax const &) const { return false; }
00038   bool CanDecode(TransferSyntax const &) const { return false; }
00039   bool Decode(DataElement const &is_, DataElement &os);
00040   bool IsLossy() const;
00041   void SetLossyFlag(bool l);
00042   bool GetLossyFlag() const;
00043 
00044   virtual bool GetHeaderInfo(std::istream &is_, TransferSyntax &ts);
00045 
00046 protected:
00047   bool Decode(std::istream &is_, std::ostream &os);
00048   virtual bool IsValid(PhotometricInterpretation const &pi);
00049 public:
00050 
00051   unsigned int GetPlanarConfiguration() const
00052     {
00053     return PlanarConfiguration;
00054     }
00055   void SetPlanarConfiguration(unsigned int pc)
00056     {
00057     assert( pc == 0 || pc == 1 );
00058     PlanarConfiguration = pc;
00059     }
00060 
00061   PixelFormat &GetPixelFormat()
00062     {
00063     return PF;
00064     }
00065   const PixelFormat &GetPixelFormat() const
00066     {
00067     return PF;
00068     }
00069   virtual void SetPixelFormat(PixelFormat const &pf)
00070     {
00071     PF = pf;
00072     }
00073   const PhotometricInterpretation &GetPhotometricInterpretation() const;
00074   void SetPhotometricInterpretation(PhotometricInterpretation const &pi);
00075 
00076   bool GetNeedByteSwap() const
00077     {
00078     return NeedByteSwap;
00079     }
00080   void SetNeedByteSwap(bool b)
00081     {
00082     NeedByteSwap = b;
00083     }
00084   void SetNeedOverlayCleanup(bool b)
00085     {
00086     NeedOverlayCleanup = b;
00087     }
00088   void SetLUT(LookupTable const &lut)
00089     {
00090     LUT = SmartPointer<LookupTable>( const_cast<LookupTable*>(&lut) );
00091     }
00092   const LookupTable &GetLUT() const
00093     {
00094     return *LUT;
00095     }
00096 
00097   void SetDimensions(const unsigned int *d)
00098     {
00099     Dimensions[0] = d[0];
00100     Dimensions[1] = d[1];
00101     Dimensions[2] = d[2];
00102     }
00103   const unsigned int *GetDimensions() const { return Dimensions; }
00104   void SetNumberOfDimensions(unsigned int dim);
00105   unsigned int GetNumberOfDimensions() const;
00106 
00107 protected:
00108   bool RequestPlanarConfiguration;
00109   bool RequestPaddedCompositePixelCode;
00110 //private:
00111   unsigned int PlanarConfiguration;
00112   PhotometricInterpretation PI;
00113   PixelFormat PF;
00114   bool NeedByteSwap;
00115   bool NeedOverlayCleanup;
00116 
00117   typedef SmartPointer<LookupTable> LUTPtr;
00118   LUTPtr LUT;
00119   unsigned int Dimensions[3]; // FIXME
00120   unsigned int NumberOfDimensions;
00121   bool LossyFlag;
00122 
00123   bool DoOverlayCleanup(std::istream &is_, std::ostream &os);
00124   bool DoByteSwap(std::istream &is_, std::ostream &os);
00125   bool DoYBR(std::istream &is_, std::ostream &os);
00126   bool DoPlanarConfiguration(std::istream &is_, std::ostream &os);
00127   bool DoSimpleCopy(std::istream &is_, std::ostream &os);
00128   bool DoPaddedCompositePixelCode(std::istream &is_, std::ostream &os);
00129   bool DoInvertMonochrome(std::istream &is_, std::ostream &os);
00130 
00131   //template <typename T>
00132   //bool DoInvertPlanarConfiguration(T *output, const T *input, uint32_t length);
00133 };
00134 
00135 } // end namespace gdcm
00136 
00137 #endif //GDCMIMAGECODEC_H

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