pdfi::PngHelper Class Reference

#include <pnghelper.hxx>

Static Public Member Functions
static void	updateCRC (sal_uInt32 &io_rCRC, const sal_uInt8 *i_pBuf, size_t i_nLen)
static sal_uInt32	getCRC (const sal_uInt8 *i_pBuf, size_t i_nLen)
static sal_uInt32	deflateBuffer (const Output_t *i_pBuf, size_t i_nLen, OutputBuffer &o_rOut)
static void	createPng (OutputBuffer &o_rOutputBuf, Stream *str, int width, int height, GfxRGB const &zeroColor, GfxRGB const &oneColor, bool bIsMask)
static void	createPng (OutputBuffer &o_rOutputBuf, Stream *str, int width, int height, GfxImageColorMap *colorMap, Stream *maskStr, int maskWidth, int maskHeight, GfxImageColorMap *maskColorMap)
static void	createPng (OutputBuffer &o_rOutputBuf, Stream *str, int width, int height, GfxImageColorMap *colorMap, Stream *maskStr, int maskWidth, int maskHeight, bool maskInvert)

Static Private Member Functions
static void	initCRCTable ()
static void	appendFileHeader (OutputBuffer &o_rOutputBuf)
static size_t	startChunk (const char *pChunkName, OutputBuffer &o_rOut)
static void	endChunk (size_t nStart, OutputBuffer &o_rOut)
static void	set (sal_uInt32 i_nValue, OutputBuffer &o_rOutputBuf, size_t i_nIndex)
static void	append (sal_uInt32 i_nValue, OutputBuffer &o_rOutputBuf)
static void	appendIHDR (OutputBuffer &o_rOutputBuf, int width, int height, int depth, int colortype)
static void	appendIEND (OutputBuffer &o_rOutputBuf)

Static Private Attributes
static sal_uInt32	crc_table [256]
static bool	bCRCTableInit = true

Detailed Description

Definition at line 29 of file pnghelper.hxx.

Member Function Documentation

append()

static void pdfi::PngHelper::append ( sal_uInt32  i_nValue, OutputBuffer &  o_rOutputBuf  )

inlinestaticprivate

Definition at line 40 of file pnghelper.hxx.

References set().

Referenced by appendIHDR(), and endChunk().

appendFileHeader()

void PngHelper::appendFileHeader ( OutputBuffer &  o_rOutputBuf )

staticprivate

Definition at line 118 of file pnghelper.cxx.

References SAL_N_ELEMENTS.

Referenced by createPng().

appendIEND()

void PngHelper::appendIEND ( OutputBuffer &  o_rOutputBuf )

staticprivate

Definition at line 172 of file pnghelper.cxx.

References endChunk(), and startChunk().

Referenced by createPng().

appendIHDR()

void PngHelper::appendIHDR ( OutputBuffer &  o_rOutputBuf, int  width, int  height, int  depth, int  colortype  )

staticprivate

Definition at line 159 of file pnghelper.cxx.

References append(), endChunk(), and startChunk().

Referenced by createPng().

createPng() [1/3]

void PngHelper::createPng ( OutputBuffer &  o_rOutputBuf, Stream *  str, int  width, int  height, GfxImageColorMap *  colorMap, Stream *  maskStr, int  maskWidth, int  maskHeight, bool  maskInvert  )

static

Definition at line 321 of file pnghelper.cxx.

References appendFileHeader(), appendIEND(), appendIHDR(), deflateBuffer(), endChunk(), nIndex, p, startChunk(), x, and y.

createPng() [2/3]

void PngHelper::createPng ( OutputBuffer &  o_rOutputBuf, Stream *  str, int  width, int  height, GfxImageColorMap *  colorMap, Stream *  maskStr, int  maskWidth, int  maskHeight, GfxImageColorMap *  maskColorMap  )

static

Definition at line 237 of file pnghelper.cxx.

References alpha, appendFileHeader(), appendIEND(), appendIHDR(), deflateBuffer(), endChunk(), nIndex, p, startChunk(), x, and y.

createPng() [3/3]

void PngHelper::createPng ( OutputBuffer &  o_rOutputBuf, Stream *  str, int  width, int  height, GfxRGB const &  zeroColor, GfxRGB const &  oneColor, bool  bIsMask  )

static

Definition at line 178 of file pnghelper.cxx.

References appendFileHeader(), appendIEND(), appendIHDR(), deflateBuffer(), endChunk(), startChunk(), x, and y.

Referenced by pdfi::writePng_().

deflateBuffer()

sal_uInt32 PngHelper::deflateBuffer ( const Output_t *  i_pBuf, size_t  i_nLen, OutputBuffer &  o_rOut  )

static

Definition at line 76 of file pnghelper.cxx.

Referenced by createPng().

endChunk()

void PngHelper::endChunk ( size_t  nStart, OutputBuffer &  o_rOut  )

staticprivate

Definition at line 144 of file pnghelper.cxx.

References append(), getCRC(), and set().

Referenced by appendIEND(), appendIHDR(), and createPng().

getCRC()

sal_uInt32 PngHelper::getCRC ( const sal_uInt8 *  i_pBuf, size_t  i_nLen  )

static

Definition at line 69 of file pnghelper.cxx.

References updateCRC().

Referenced by endChunk().

initCRCTable()

void PngHelper::initCRCTable ( )

staticprivate

Definition at line 36 of file pnghelper.cxx.

References bCRCTableInit, crc_table, and n.

Referenced by updateCRC().

set()

void PngHelper::set ( sal_uInt32  i_nValue, OutputBuffer &  o_rOutputBuf, size_t  i_nIndex  )

staticprivate

Definition at line 136 of file pnghelper.cxx.

Referenced by append(), and endChunk().

startChunk()

size_t PngHelper::startChunk ( const char *  pChunkName, OutputBuffer &  o_rOut  )

staticprivate

Definition at line 125 of file pnghelper.cxx.

References nIndex.

Referenced by appendIEND(), appendIHDR(), and createPng().

updateCRC()

void PngHelper::updateCRC ( sal_uInt32 &  io_rCRC, const sal_uInt8 *  i_pBuf, size_t  i_nLen  )

static

Definition at line 58 of file pnghelper.cxx.

References bCRCTableInit, crc_table, initCRCTable(), and n.

Referenced by getCRC().

Member Data Documentation

bCRCTableInit

bool PngHelper::bCRCTableInit = true

staticprivate

Definition at line 32 of file pnghelper.hxx.

Referenced by initCRCTable(), and updateCRC().

crc_table

sal_uInt32 PngHelper::crc_table

staticprivate

Definition at line 31 of file pnghelper.hxx.

Referenced by initCRCTable(), and updateCRC().

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The documentation for this class was generated from the following files:

• pnghelper.hxx
• pnghelper.cxx