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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkBMPImageIO_h
#define itkBMPImageIO_h
#include "ITKIOBMPExport.h"
#include <fstream>
#include "itkImageIOBase.h"
#include <cstdio>
#include "itkRGBPixel.h"
namespace itk
{
/** \class BMPImageIO
*
* \brief Read BMPImage file format.
*
* \ingroup IOFilters
*
* \ingroup ITKIOBMP
*/
class ITKIOBMP_EXPORT BMPImageIO:public ImageIOBase
{
public:
/** Standard class typedefs. */
typedef BMPImageIO Self;
typedef ImageIOBase Superclass;
typedef SmartPointer< Self > Pointer;
typedef RGBPixel< unsigned char > RGBPixelType; //Palette is only unsigned char in BMP files
typedef std::vector< RGBPixelType > PaletteType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(BMPImageIO, Superclass);
/** Getter for the FileLowerLeft attribute. */
itkGetConstMacro(FileLowerLeft, bool);
/** Getter for the BMPCompression attribute. */
itkGetConstMacro(BMPCompression, long);
/** Getter for the ColorPalette attribute. */
itkGetConstReferenceMacro(ColorPalette, PaletteType);
/*-------- This part of the interfaces deals with reading data. ----- */
/** Determine the file type. Returns true if this ImageIO can read the
* file specified. */
virtual bool CanReadFile(const char *) ITK_OVERRIDE;
/** Set the spacing and dimension information for the set filename. */
virtual void ReadImageInformation() ITK_OVERRIDE;
/** Reads the data from disk into the memory buffer provided. */
virtual void Read(void *buffer) ITK_OVERRIDE;
/*-------- This part of the interfaces deals with writing data. ----- */
/** Determine the file type. Returns true if this ImageIO can write the
* file specified. */
virtual bool CanWriteFile(const char *) ITK_OVERRIDE;
/** Set the spacing and dimension information for the set filename. */
virtual void WriteImageInformation() ITK_OVERRIDE;
/** Writes the data to disk from the memory buffer provided. Make sure
* that the IORegions has been set properly. */
virtual void Write(const void *buffer) ITK_OVERRIDE;
BMPImageIO();
~BMPImageIO() ITK_OVERRIDE;
virtual void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(BMPImageIO);
void SwapBytesIfNecessary(void *buffer, SizeValueType numberOfPixels);
/** This methods ensures that the endianness is respected */
void Write32BitsInteger(unsigned int value);
void Write16BitsInteger(unsigned short value);
RGBPixelType GetColorPaletteEntry(const unsigned char entry) const;
std::ifstream m_Ifstream;
std::ofstream m_Ofstream;
long m_BitMapOffset;
bool m_FileLowerLeft;
short m_Depth;
unsigned short m_NumberOfColors;
unsigned int m_ColorPaletteSize;
long m_BMPCompression;
unsigned long m_BMPDataSize;
PaletteType m_ColorPalette;
};
} // end namespace itk
#endif // itkBMPImageIO_h
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