LibreOffice Module vcl (master)  1
Public Member Functions | Private Member Functions | Private Attributes | List of all members
vcl::PNGWriterImpl Class Reference
Collaboration diagram for vcl::PNGWriterImpl:
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Public Member Functions

 PNGWriterImpl (const BitmapEx &BmpEx, const css::uno::Sequence< css::beans::PropertyValue > *pFilterData)
 
bool Write (SvStream &rOutStream)
 
std::vector< vcl::PNGWriter::ChunkData > & GetChunks ()
 

Private Member Functions

void ImplWritepHYs (const BitmapEx &rBitmapEx)
 
void ImplWriteIDAT ()
 
sal_uLong ImplGetFilter (sal_uLong nY, sal_uLong nXStart=0, sal_uLong nXAdd=1)
 
void ImplClearFirstScanline ()
 
bool ImplWriteHeader ()
 
void ImplWritePalette ()
 
void ImplOpenChunk (sal_uLong nChunkType)
 
void ImplWriteChunk (sal_uInt8 nNumb)
 
void ImplWriteChunk (sal_uInt32 nNumb)
 
void ImplWriteChunk (unsigned char const *pSource, sal_uInt32 nDatSize)
 

Private Attributes

std::vector< vcl::PNGWriter::ChunkData > maChunkSeq
 
sal_Int32 mnCompLevel
 
sal_Int32 mnInterlaced
 
sal_uInt32 mnMaxChunkSize
 
bool mbStatus
 
Bitmap::ScopedReadAccess mpAccess
 
BitmapReadAccess * mpMaskAccess
 
ZCodec mpZCodec
 
std::unique_ptr< sal_uInt8[]> mpDeflateInBuf
 
std::unique_ptr< sal_uInt8[]> mpPreviousScan
 
std::unique_ptr< sal_uInt8[]> mpCurrentScan
 
sal_uLong mnDeflateInSize
 
sal_uLong mnWidth
 
sal_uLong mnHeight
 
sal_uInt8 mnBitsPerPixel
 
sal_uInt8 mnFilterType
 
sal_uLong mnBBP
 
bool mbTrueAlpha
 

Detailed Description

Definition at line 47 of file pngwrite.cxx.

Constructor & Destructor Documentation

vcl::PNGWriterImpl::PNGWriterImpl ( const BitmapEx &  BmpEx,
const css::uno::Sequence< css::beans::PropertyValue > *  pFilterData 
)

Definition at line 94 of file pngwrite.cxx.

References vcl::bitmap::convertBitmap32To24Plus8(), false, BitmapEx::GetAlpha(), BitmapEx::GetBitmap(), Bitmap::getPixelFormat(), BitmapInfoAccess::HasPalette(), ImplOpenChunk(), ImplWriteHeader(), ImplWriteIDAT(), ImplWritePalette(), ImplWritepHYs(), BitmapEx::IsAlpha(), BitmapEx::IsEmpty(), mbStatus, mbTrueAlpha, mnBitsPerPixel, mnCompLevel, mnHeight, mnInterlaced, mnMaxChunkSize, mnWidth, mpAccess, mpMaskAccess, N24Bit, vcl::N32_BPP, vcl::pixelFormatBitCount(), PNGCHUNK_IEND, and vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset().

Member Function Documentation

std::vector<vcl::PNGWriter::ChunkData>& vcl::PNGWriterImpl::GetChunks ( )
inline

Definition at line 55 of file pngwrite.cxx.

References maChunkSeq.

void vcl::PNGWriterImpl::ImplClearFirstScanline ( )
private

Definition at line 609 of file pngwrite.cxx.

References mnDeflateInSize, mnFilterType, and mpPreviousScan.

Referenced by ImplWriteIDAT().

sal_uLong vcl::PNGWriterImpl::ImplGetFilter ( sal_uLong  nY,
sal_uLong  nXStart = 0,
sal_uLong  nXAdd = 1 
)
private

Definition at line 431 of file pngwrite.cxx.

References COL_WHITE, BitmapInfoAccess::GetBestMatchingColor(), Color::GetBlue(), Color::GetGreen(), BitmapReadAccess::GetIndexFromData(), BitmapReadAccess::GetPixelFromData(), Color::GetRed(), BitmapReadAccess::GetScanline(), i, mbStatus, mbTrueAlpha, mnBBP, mnBitsPerPixel, mnDeflateInSize, mnFilterType, mnWidth, mpAccess, mpCurrentScan, mpDeflateInBuf, mpMaskAccess, and mpPreviousScan.

Referenced by ImplWriteIDAT().

void vcl::PNGWriterImpl::ImplOpenChunk ( sal_uLong  nChunkType)
private

Definition at line 615 of file pngwrite.cxx.

References maChunkSeq.

Referenced by ImplWriteHeader(), ImplWriteIDAT(), ImplWritePalette(), ImplWritepHYs(), and PNGWriterImpl().

void vcl::PNGWriterImpl::ImplWriteChunk ( sal_uInt8  nNumb)
private

Definition at line 621 of file pngwrite.cxx.

References maChunkSeq.

Referenced by ImplWriteHeader(), ImplWriteIDAT(), ImplWritePalette(), and ImplWritepHYs().

void vcl::PNGWriterImpl::ImplWriteChunk ( sal_uInt32  nNumb)
private

Definition at line 626 of file pngwrite.cxx.

References vcl::PNGWriter::ChunkData::aData, and maChunkSeq.

void vcl::PNGWriterImpl::ImplWriteChunk ( unsigned char const *  pSource,
sal_uInt32  nDatSize 
)
private

Definition at line 635 of file pngwrite.cxx.

References vcl::PNGWriter::ChunkData::aData, and maChunkSeq.

bool vcl::PNGWriterImpl::ImplWriteHeader ( )
private

Definition at line 244 of file pngwrite.cxx.

References BitmapInfoAccess::HasPalette(), BitmapInfoAccess::Height(), ImplOpenChunk(), ImplWriteChunk(), mbStatus, mnBitsPerPixel, mnFilterType, mnHeight, mnInterlaced, mnWidth, mpAccess, mpMaskAccess, PNGCHUNK_IHDR, and BitmapInfoAccess::Width().

Referenced by PNGWriterImpl().

void vcl::PNGWriterImpl::ImplWriteIDAT ( )
private

Definition at line 322 of file pngwrite.cxx.

References ZCodec::BeginCompression(), ZCodec::EndCompression(), SvMemoryStream::GetData(), ImplClearFirstScanline(), ImplGetFilter(), ImplOpenChunk(), ImplWriteChunk(), mnBBP, mnBitsPerPixel, mnCompLevel, mnDeflateInSize, mnFilterType, mnHeight, mnInterlaced, mnMaxChunkSize, mnWidth, mpCurrentScan, mpDeflateInBuf, mpMaskAccess, mpPreviousScan, mpZCodec, PNGCHUNK_IDAT, SvStream::Tell(), and ZCodec::Write().

Referenced by PNGWriterImpl().

void vcl::PNGWriterImpl::ImplWritePalette ( )
private

Definition at line 284 of file pngwrite.cxx.

References Color::GetBlue(), Color::GetGreen(), BitmapInfoAccess::GetPaletteColor(), BitmapInfoAccess::GetPaletteEntryCount(), Color::GetRed(), i, ImplOpenChunk(), ImplWriteChunk(), mpAccess, nCount, and PNGCHUNK_PLTE.

Referenced by PNGWriterImpl().

void vcl::PNGWriterImpl::ImplWritepHYs ( const BitmapEx &  rBitmapEx)
private

Definition at line 302 of file pngwrite.cxx.

References MapMode::GetMapUnit(), BitmapEx::GetPrefMapMode(), BitmapEx::GetPrefSize(), ImplOpenChunk(), ImplWriteChunk(), mnHeight, mnWidth, and PNGCHUNK_pHYs.

Referenced by PNGWriterImpl().

bool vcl::PNGWriterImpl::Write ( SvStream &  rOutStream)

Definition at line 216 of file pngwrite.cxx.

References SvStream::GetEndian(), maChunkSeq, mbStatus, nType, SvStream::SetEndian(), SvStream::WriteBytes(), and SvStream::WriteUInt32().

Member Data Documentation

std::vector<vcl::PNGWriter::ChunkData> vcl::PNGWriterImpl::maChunkSeq
private

Definition at line 58 of file pngwrite.cxx.

Referenced by GetChunks(), ImplOpenChunk(), ImplWriteChunk(), and Write().

bool vcl::PNGWriterImpl::mbStatus
private

Definition at line 63 of file pngwrite.cxx.

Referenced by ImplGetFilter(), ImplWriteHeader(), PNGWriterImpl(), and Write().

bool vcl::PNGWriterImpl::mbTrueAlpha
private

Definition at line 80 of file pngwrite.cxx.

Referenced by ImplGetFilter(), and PNGWriterImpl().

sal_uLong vcl::PNGWriterImpl::mnBBP
private

Definition at line 79 of file pngwrite.cxx.

Referenced by ImplGetFilter(), and ImplWriteIDAT().

sal_uInt8 vcl::PNGWriterImpl::mnBitsPerPixel
private

Definition at line 77 of file pngwrite.cxx.

Referenced by ImplGetFilter(), ImplWriteHeader(), ImplWriteIDAT(), and PNGWriterImpl().

sal_Int32 vcl::PNGWriterImpl::mnCompLevel
private

Definition at line 60 of file pngwrite.cxx.

Referenced by ImplWriteIDAT(), and PNGWriterImpl().

sal_uLong vcl::PNGWriterImpl::mnDeflateInSize
private

Definition at line 73 of file pngwrite.cxx.

Referenced by ImplClearFirstScanline(), ImplGetFilter(), and ImplWriteIDAT().

sal_uInt8 vcl::PNGWriterImpl::mnFilterType
private

Definition at line 78 of file pngwrite.cxx.

Referenced by ImplClearFirstScanline(), ImplGetFilter(), ImplWriteHeader(), and ImplWriteIDAT().

sal_uLong vcl::PNGWriterImpl::mnHeight
private

Definition at line 76 of file pngwrite.cxx.

Referenced by ImplWriteHeader(), ImplWriteIDAT(), and ImplWritepHYs().

sal_Int32 vcl::PNGWriterImpl::mnInterlaced
private

Definition at line 61 of file pngwrite.cxx.

Referenced by ImplWriteHeader(), ImplWriteIDAT(), and PNGWriterImpl().

sal_uInt32 vcl::PNGWriterImpl::mnMaxChunkSize
private

Definition at line 62 of file pngwrite.cxx.

Referenced by ImplWriteIDAT(), and PNGWriterImpl().

sal_uLong vcl::PNGWriterImpl::mnWidth
private

Definition at line 75 of file pngwrite.cxx.

Referenced by ImplGetFilter(), ImplWriteHeader(), ImplWriteIDAT(), and ImplWritepHYs().

Bitmap::ScopedReadAccess vcl::PNGWriterImpl::mpAccess
private

Definition at line 65 of file pngwrite.cxx.

Referenced by ImplGetFilter(), ImplWriteHeader(), ImplWritePalette(), and PNGWriterImpl().

std::unique_ptr<sal_uInt8[]> vcl::PNGWriterImpl::mpCurrentScan
private

Definition at line 72 of file pngwrite.cxx.

Referenced by ImplGetFilter(), and ImplWriteIDAT().

std::unique_ptr<sal_uInt8[]> vcl::PNGWriterImpl::mpDeflateInBuf
private

Definition at line 70 of file pngwrite.cxx.

Referenced by ImplGetFilter(), and ImplWriteIDAT().

BitmapReadAccess* vcl::PNGWriterImpl::mpMaskAccess
private

Definition at line 66 of file pngwrite.cxx.

Referenced by ImplGetFilter(), ImplWriteHeader(), ImplWriteIDAT(), and PNGWriterImpl().

std::unique_ptr<sal_uInt8[]> vcl::PNGWriterImpl::mpPreviousScan
private

Definition at line 71 of file pngwrite.cxx.

Referenced by ImplClearFirstScanline(), ImplGetFilter(), and ImplWriteIDAT().

ZCodec vcl::PNGWriterImpl::mpZCodec
private

Definition at line 67 of file pngwrite.cxx.

Referenced by ImplWriteIDAT().

The documentation for this class was generated from the following file:
Generated on Tue Jun 21 2022 19:58:26 for LibreOffice Module vcl (master) by   doxygen 1.8.10