bmpfile(3)
NAME
BmpFile
SYNOPSIS
#include <BmpFile.h> Inherits CvrStgFile. Public Member Functions BmpFile (void) BmpFile (BinaryIO *io) ~BmpFile (void) void read (BinaryIO *io) void write (void) std::list< CvrStgFile::Property > getProperties (void) const std::vector< MatchingAlgorithm * > getMatchingAlgorithms (Graph *g, Matching *m) const unsigned long getNumSamples (void) const void replaceSample (const SamplePos pos, const SampleValue *s) SampleValue * getSampleValue (SamplePos pos) const std::vector< SampleValueAdjacencyList * > calcSVAdjacencyLists (const std::vector< SampleValue * > &svs) const unsigned short getBitCount (void) const unsigned long getWidth (void) const unsigned long getHeight (void) const ColorPalette * getPalette (void) const Protected Types typedef BmpFile::struct_BITMAPFILEHEADER BITMAPFILEHEADER typedef BmpFile::struct_BITMAPINFOHEADER BITMAPINFOHEADER typedef BmpFile::struct_BITMAPCOREHEADER BITMAPCOREHEADER Private Types enum SUBFORMAT { WIN, OS2 } Private Member Functions void readheaders () void bmpwin_readheaders () void bmpos2_readheaders () void writeheaders () void bmpwin_writeheaders () void bmpos2_writeheaders () void readdata () void writedata () void calcIndex (SamplePos pos, unsigned long *index, unsigned short *firstbit) const unsigned long calcLinelength () SUBFORMAT getSubformat (void) const Private Attributes SUBFORMAT subformat BITMAPFILEHEADER bmfh BITMAPINFOHEADER bmih BITMAPCOREHEADER bmch ColorPalette * Palette std::vector< std::vector< unsigned char > > bitmap std::vector< BYTE > BitmapData std::vector< BYTE > atend contains bytes that are appended at the end of the bitmap data (some image editors apparently do this) Static Private Attributes static const unsigned int IdBm = 19778 static const unsigned short SizeBMFILEHEADER = 14 static const unsigned short SizeBMINFOHEADER = 40 static const unsigned short SizeBMCOREHEADER = 12 static const unsigned int COMPRESSION_BI_RGB = 0 static const unsigned short SamplesPerVertex_SmallPalette = 2 static const unsigned short SamplesPerVertex_LargePalette = 3 static const unsigned short SamplesPerVertex_RGB = 2 static const UWORD32 Radius_Palette = 400 the default radius for palette images (400 = 20^2) static const UWORD32 Radius_RGB = 100 the default radius for RGB images (100 = 10^2) static const EmbValue EmbValueModulus_SmallPalette = 2 static const EmbValue EmbValueModulus_LargePalette = 4 static const EmbValue EmbValueModulus_RGB = 4 Classes struct struct_BITMAPCOREHEADER struct struct_BITMAPFILEHEADER struct struct_BITMAPINFOHEADER
Member Typedef Documentation
- typedef struct BmpFile::struct_BITMAPFILEHEADER BmpFile::BITMAPFILEHEADER
- [protected]
- typedef struct BmpFile::struct_BITMAPINFOHEADER BmpFile::BITMAPINFOHEADER
- [protected]
- typedef struct BmpFile::struct_BITMAPCOREHEADER BmpFile::BITMAPCOREHEADER
- [protected]
Member Enumeration Documentation
- enum BmpFile::SUBFORMAT [private]
- Enumerator:
- WIN
- OS2
Constructor & Destructor Documentation
BmpFile::BmpFile (void)
BmpFile::BmpFile (BinaryIO * io)
BmpFile::~BmpFile (void)
Member Function Documentation
- void BmpFile::read (BinaryIO * io) [virtual]
- Reimplemented from CvrStgFile.
- void BmpFile::write (void) [virtual]
- Reimplemented from CvrStgFile.
- std::list< CvrStgFile::Property > BmpFile::getProperties (void) const
- [virtual]
Implements CvrStgFile. - std::vector< MatchingAlgorithm * > BmpFile::getMatchingAlgorithms (Graph *
- g, Matching * m) const [virtual] get recommended list of matching algorithms
- Parameters:
m an empty matching - will be used in construction of
MatchingAlgorithm objects - The MatchingAlgorithm objects returned by this function should be deleted by the caller if they are no longer needed.
- Reimplemented from CvrStgFile.
- unsigned long BmpFile::getNumSamples (void) const [virtual]
- get the number of samples in this CvrStgObject
- Implements CvrStgObject.
- void BmpFile::replaceSample (const SamplePos pos, const SampleValue * s)
- [virtual]
replace a sample thus (possibly) altering the value of the bit returned by SampleValue->getBit() - Parameters:
pos the position of the sample (must be in 0...getNumSamples()-1) s the sample value that should replace the current sample value
(must be of correct type for this CvrStgObject) - The derived class should check the condition(s) given above in its
Implementation of this function. - Implements CvrStgObject.
- SampleValue * BmpFile::getSampleValue (SamplePos pos) const [virtual]
- get the sample at position pos
- Parameters:
pos the position of a sample (must be in 0...getNumSamples()-1)
- Returns:
the sample at the given position
- The sample object is created in this function and should be deleted by the caller. The derived class should check the condition(s) given above in its Implementation of this function.
- Implements CvrStgObject.
- std::vector< SampleValueAdjacencyList * > BmpFile::calcSVAdjacencyLists
- (const std::vector< SampleValue * > & svs) const [virtual] calculate a vector a SampleValueAdjacencyLists
- Parameters:
svs a vector of unique(!) sample values where svs[i]->getLabel() == i holds for all i
- Returns:
a vector of SampleValueAdjacencyLists where retval[i] only contains sample values with getEmbValue() == i
- Every row in the adjacency lists must be sorted in the following order:
The first sample value has the least distance to the source sample
value, the last has the largest distance. If two sample values in one
row have the same distance to the source sample value, the order does
not matter. - May be overridden in derived class to provide a faster version.
- Reimplemented from CvrStgFile.
- unsigned short BmpFile::getBitCount (void) const unsigned long BmpFile::getWidth (void) const unsigned long BmpFile::getHeight (void) const ColorPalette * BmpFile::getPalette (void) const void BmpFile::readheaders () [private] void BmpFile::bmpwin_readheaders () [private] void BmpFile::bmpos2_readheaders () [private] void BmpFile::writeheaders () [private] void BmpFile::bmpwin_writeheaders () [private] void BmpFile::bmpos2_writeheaders () [private] void BmpFile::readdata () [private] void BmpFile::writedata () [private] void BmpFile::calcIndex (SamplePos pos, unsigned long * index, unsigned
- short * firstbit) const [private]
translate a sample position into a <index,firstbit> pair 'pointing'
into the BitmapData array - Parameters:
pos a sample position
index a pointer to a variable that will contain the array index used to access the pos-th sample
firstbit the firstbit in BitmapData[index] that belongs to the sample with the given position - unsigned long BmpFile::calcLinelength () [private] BmpFile::SUBFORMAT BmpFile::getSubformat (void) const [private]
Member Data Documentation
- const unsigned int BmpFile::IdBm = 19778 [static, private] const unsigned short BmpFile::SizeBMFILEHEADER = 14 [static, private] const unsigned short BmpFile::SizeBMINFOHEADER = 40 [static, private] const unsigned short BmpFile::SizeBMCOREHEADER = 12 [static, private] const unsigned int BmpFile::COMPRESSION_BI_RGB = 0 [static, private] const unsigned short BmpFile::SamplesPerVertex_SmallPalette = 2 [static,
- private]
- const unsigned short BmpFile::SamplesPerVertex_LargePalette = 3 [static,
- private]
- const unsigned short BmpFile::SamplesPerVertex_RGB = 2 [static, private] const UWORD32 BmpFile::Radius_Palette = 400 [static, private] const UWORD32 BmpFile::Radius_RGB = 100 [static, private] const EmbValue BmpFile::EmbValueModulus_SmallPalette = 2 [static, private] const EmbValue BmpFile::EmbValueModulus_LargePalette = 4 [static, private] const EmbValue BmpFile::EmbValueModulus_RGB = 4 [static, private] SUBFORMAT BmpFile::subformat [private] BITMAPFILEHEADER BmpFile::bmfh [private] BITMAPINFOHEADER BmpFile::bmih [private] BITMAPCOREHEADER BmpFile::bmch [private] ColorPalette* BmpFile::Palette [private] std::vector<std::vector <unsigned char> > BmpFile::bitmap [private]
- contains the bitmap in the following format bitmap[i] is the pixel data
of the i-th row of the bitmap bitmap[i][j] is the j-th byte of the
pixel data of the i-th row of the bitmap if bitcount is < 8 then
bitmap[i][j] contains the pixels as read in from the file (i.e. in the 'wrong' direction) this is taken care of in the calcRCB function - std::vector<BYTE> BmpFile::BitmapData [private]
- contains the bitmap data in the same order as read from file (but
without padding bytes) - std::vector<BYTE> BmpFile::atend [private]
Author
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