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118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkBMPReader.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkBMPReader
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* @brief read Windows BMP files
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*
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* vtkBMPReader is a source object that reads Windows BMP files.
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* This includes indexed and 24bit bitmaps
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* Usually, all BMPs are converted to 24bit RGB, but BMPs may be output
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* as 8bit images with a LookupTable if the Allow8BitBMP flag is set.
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*
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* BMPReader creates structured point datasets. The dimension of the
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* dataset depends upon the number of files read. Reading a single file
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* results in a 2D image, while reading more than one file results in a
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* 3D volume.
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*
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* To read a volume, files must be of the form "FileName.<number>"
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* (e.g., foo.bmp.0, foo.bmp.1, ...). You must also specify the image
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* range. This range specifies the beginning and ending files to read (range
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* can be any pair of non-negative numbers).
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*
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* The default behavior is to read a single file. In this case, the form
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* of the file is simply "FileName" (e.g., foo.bmp).
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*
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* @sa
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* vtkBMPWriter
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*/
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#ifndef vtkBMPReader_h
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#define vtkBMPReader_h
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#include "vtkIOImageModule.h" // For export macro
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#include "vtkImageReader.h"
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class vtkLookupTable;
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class VTKIOIMAGE_EXPORT vtkBMPReader : public vtkImageReader
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{
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public:
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static vtkBMPReader* New();
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vtkTypeMacro(vtkBMPReader, vtkImageReader);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Returns the depth of the BMP, either 8 or 24.
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*/
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vtkGetMacro(Depth, int);
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//@}
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/**
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* Is the given file a BMP file?
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*/
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int CanReadFile(const char* fname) override;
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/**
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* Get the file extensions for this format.
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* Returns a string with a space separated list of extensions in
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* the format .extension
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*/
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const char* GetFileExtensions() override { return ".bmp"; }
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/**
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* Return a descriptive name for the file format that might be useful in a GUI.
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*/
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const char* GetDescriptiveName() override { return "Windows BMP"; }
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//@{
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/**
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* If this flag is set and the BMP reader encounters an 8bit file,
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* the data will be kept as unsigned chars and a lookuptable will be
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* exported
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*/
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vtkSetMacro(Allow8BitBMP, vtkTypeBool);
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vtkGetMacro(Allow8BitBMP, vtkTypeBool);
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vtkBooleanMacro(Allow8BitBMP, vtkTypeBool);
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//@}
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vtkGetObjectMacro(LookupTable, vtkLookupTable);
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//@{
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/**
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* Returns the color lut.
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*/
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vtkGetMacro(Colors, unsigned char*);
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//@}
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protected:
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vtkBMPReader();
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~vtkBMPReader() override;
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unsigned char* Colors;
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short Depth;
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vtkTypeBool Allow8BitBMP;
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vtkLookupTable* LookupTable;
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void ComputeDataIncrements() override;
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void ExecuteInformation() override;
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void ExecuteDataWithInformation(vtkDataObject* out, vtkInformation* outInfo) override;
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private:
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vtkBMPReader(const vtkBMPReader&) = delete;
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void operator=(const vtkBMPReader&) = delete;
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};
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#endif
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