vcl::bitmap Namespace Reference

Classes
class	RawBitmap
	Intended to be used to feed into CreateFromData to create a BitmapEx. More...
class	ScanlineTransformer
class	ScanlineTransformer_1BitPalette
class	ScanlineTransformer_4BitPalette
class	ScanlineTransformer_8BitPalette
class	ScanlineTransformer_ARGB
class	ScanlineTransformer_BGR

Typedefs
typedef sal_uInt8(*	lookup_table)[256]

Functions
BitmapEx	loadFromName (const OUString &rFileName, const ImageLoadFlags eFlags)
void	loadFromSvg (SvStream &rStream, const OUString &sPath, BitmapEx &rBitmapEx, double fScalingFactor)
BitmapEx	CreateFromData (sal_uInt8 const *pData, sal_Int32 nWidth, sal_Int32 nHeight, sal_Int32 nStride, sal_uInt16 nBitCount)
	Copy block of image data into the bitmap. More...
BitmapEx	CreateFromData (RawBitmap &&rawBitmap)
	Copy block of image data into the bitmap. More...
BitmapEx	CanvasTransformBitmap (const BitmapEx &rBitmap, const ::basegfx::B2DHomMatrix &rTransform,::basegfx::B2DRectangle const &rDestRect,::basegfx::B2DHomMatrix const &rLocalTransform)
void	DrawAlphaBitmapAndAlphaGradient (BitmapEx &rBitmapEx, bool bFixedTransparence, float fTransparence, AlphaMask &rNewMask)
void	DrawAndClipBitmap (const Point &rPos, const Size &rSize, const BitmapEx &rBitmap, BitmapEx &aBmpEx, basegfx::B2DPolyPolygon const &rClipPath)
css::uno::Sequence< sal_Int8 >	GetMaskDIB (BitmapEx const &aBmpEx)
static bool	readAlpha (BitmapReadAccess const *pAlphaReadAcc, long nY, const long nWidth, unsigned char *data, long nOff)
void	CanvasCairoExtractBitmapData (BitmapEx const &rBmpEx, Bitmap &rBitmap, unsigned char *&data, bool &bHasAlpha, long &rnWidth, long &rnHeight)
uno::Sequence< sal_Int8 >	CanvasExtractBitmapData (BitmapEx const &rBitmapEx, const geometry::IntegerRectangle2D &rect)
BitmapEx	createHistorical8x8FromArray (std::array< sal_uInt8, 64 > const &pArray, Color aColorPix, Color aColorBack)
bool	isHistorical8x8 (const BitmapEx &rBitmapEx, Color &o_rBack, Color &o_rFront)
sal_uInt8	unpremultiply (sal_uInt8 c, sal_uInt8 a)
sal_uInt8	premultiply (sal_uInt8 c, sal_uInt8 a)
lookup_table	get_unpremultiply_table ()
lookup_table	get_premultiply_table ()
bool	convertBitmap32To24Plus8 (BitmapEx const &rInput, BitmapEx &rResult)
std::unique_ptr< ScanlineTransformer >	getScanlineTransformer (sal_uInt16 nBits, const BitmapPalette &rPalette)
VCL_DLLPUBLIC css::uno::Sequence< sal_Int8 >	CanvasExtractBitmapData (BitmapEx const &rBitmapEx, const css::geometry::IntegerRectangle2D &rect)

Typedef Documentation

typedef sal_uInt8(* vcl::bitmap::lookup_table)[256]

Definition at line 31 of file BitmapTools.hxx.

Function Documentation

VCL_DLLPUBLIC void vcl::bitmap::CanvasCairoExtractBitmapData	(	BitmapEx const &	aBmpEx,
		Bitmap &	aBitmap,
		unsigned char *&	data,
		bool &	bHasAlpha,
		long &	rnWidth,
		long &	rnHeight
	)

Parameters

data	will be filled with alpha data, if xBitmap is alpha/transparent image
bHasAlpha	will be set to true if resulting surface has alpha

Definition at line 708 of file BitmapTools.cxx.

References Bitmap::AcquireReadAccess(), get_premultiply_table(), BitmapEx::GetAlpha(), Color::GetBlue(), BitmapReadAccess::GetColor(), Color::GetGreen(), BitmapInfoAccess::GetPaletteColor(), Color::GetRed(), BitmapReadAccess::GetScanline(), BitmapInfoAccess::GetScanlineFormat(), BitmapInfoAccess::Height(), BitmapEx::IsAlpha(), BitmapEx::IsTransparent(), N24BitTcBgr, N24BitTcRgb, N32BitTcBgra, N32BitTcRgba, N8BitPal, readAlpha(), AlphaMask::ReleaseAccess(), Bitmap::ReleaseAccess(), SAL_INFO, and BitmapInfoAccess::Width().

VCL_DLLPUBLIC css::uno::Sequence< sal_Int8 > vcl::bitmap::CanvasExtractBitmapData	(	BitmapEx const &	rBitmapEx,
		const css::geometry::IntegerRectangle2D &	rect
	)

uno::Sequence< sal_Int8 > vcl::bitmap::CanvasExtractBitmapData	(	BitmapEx const &	rBitmapEx,
		const geometry::IntegerRectangle2D &	rect
	)

Definition at line 929 of file BitmapTools.cxx.

References assert(), BitmapEx::GetAlpha(), AlphaMask::GetBitmap(), BitmapEx::GetBitmap(), x, and y.

VCL_DLLPUBLIC BitmapEx vcl::bitmap::CanvasTransformBitmap	(	const BitmapEx &	rBitmap,
		const ::basegfx::B2DHomMatrix &	rTransform,
		::basegfx::B2DRectangle const &	rDestRect,
		::basegfx::B2DHomMatrix const &	rLocalTransform
	)

Definition at line 316 of file BitmapTools.cxx.

References ENSURE_OR_THROW, basegfx::fround(), vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::get(), BitmapEx::GetAlpha(), AlphaMask::GetBitmap(), BitmapEx::GetBitmap(), basegfx::B2DRange::getHeight(), BitmapEx::GetMask(), BitmapInfoAccess::GetPalette(), BitmapReadAccess::GetPixel(), Color::GetRed(), BitmapReadAccess::GetScanline(), BitmapEx::GetSizePixel(), basegfx::B2DRange::getWidth(), basegfx::B2DTuple::getX(), basegfx::B2DTuple::getY(), Size::Height(), basegfx::B2DHomMatrix::invert(), BitmapEx::IsAlpha(), Size::IsEmpty(), BitmapEx::IsTransparent(), BitmapReadAccess::SetPixelOnData(), Size::Width(), x, and y.

VCL_DLLPUBLIC bool vcl::bitmap::convertBitmap32To24Plus8	(	BitmapEx const &	rInput,
		BitmapEx &	rResult
	)

Definition at line 1089 of file BitmapTools.cxx.

References BitmapColor::GetAlpha(), BitmapEx::GetAlpha(), BitmapEx::GetBitmap(), Color::GetBlue(), Color::GetGreen(), BitmapReadAccess::GetPixelFromData(), Color::GetRed(), BitmapReadAccess::GetScanline(), Size::Height(), BitmapEx::IsTransparent(), BitmapReadAccess::SetPixelOnData(), and Size::Width().

Referenced by vcl::PNGWriterImpl::PNGWriterImpl().

BitmapEx VCL_DLLPUBLIC vcl::bitmap::CreateFromData	(	sal_uInt8 const *	pData,
		sal_Int32	nWidth,
		sal_Int32	nHeight,
		sal_Int32	nStride,
		sal_uInt16	nBitCount
	)

Copy block of image data into the bitmap.

Assumes that the Bitmap has been constructed with the desired size.

Parameters

pData	The block of data to copy
nStride	The number of bytes in a scanline, must >= (width * nBitCount / 8)

Assumes that the Bitmap has been constructed with the desired size.

Parameters

pData	The block of data to copy
nStride	The number of bytes in a scanline, must be >= (width * nBitCount / 8)

Definition at line 125 of file BitmapTools.cxx.

References assert(), vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::get(), BitmapReadAccess::GetScanline(), p, vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset(), BitmapReadAccess::SetPixelOnData(), x, and y.

BitmapEx VCL_DLLPUBLIC vcl::bitmap::CreateFromData

(

RawBitmap &&

rawBitmap

)

Copy block of image data into the bitmap.

Assumes that the Bitmap has been constructed with the desired size.

Definition at line 188 of file BitmapTools.cxx.

References assert(), vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::get(), BitmapReadAccess::GetScanline(), nBitCount, p, vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset(), BitmapReadAccess::SetPixelOnData(), x, and y.

BitmapEx VCL_DLLPUBLIC vcl::bitmap::createHistorical8x8FromArray	(	std::array< sal_uInt8, 64 > const &	pArray,
		Color	aColorPix,
		Color	aColorBack
	)

Definition at line 982 of file BitmapTools.cxx.

References a, Bitmap::AcquireWriteAccess(), and pContent.

VCL_DLLPUBLIC void vcl::bitmap::DrawAlphaBitmapAndAlphaGradient	(	BitmapEx &	rBitmapEx,
		bool	bFixedTransparence,
		float	fTransparence,
		AlphaMask &	rNewMask
	)

Definition at line 477 of file BitmapTools.cxx.

References assert(), Bitmap, Color, Bitmap::CreateMask(), basegfx::fround(), BitmapEx::GetAlpha(), BitmapEx::GetBitmap(), BitmapReadAccess::GetIndexFromData(), BitmapEx::GetMask(), BitmapReadAccess::GetScanline(), BitmapEx::GetTransparentColor(), BitmapEx::GetTransparentType(), BitmapInfoAccess::Height(), BitmapEx::IsAlpha(), BitmapReadAccess::SetPixelOnData(), BitmapInfoAccess::Width(), x, and y.

VCL_DLLPUBLIC void vcl::bitmap::DrawAndClipBitmap	(	const Point &	rPos,
		const Size &	rSize,
		const BitmapEx &	rBitmap,
		BitmapEx &	aBmpEx,
		basegfx::B2DPolyPolygon const &	rClipPath
	)

Definition at line 548 of file BitmapTools.cxx.

References And, COL_BLACK(), COL_WHITE(), Bitmap::CombineSimple(), BitmapEx::GetAlpha(), BitmapEx::GetBitmap(), BitmapReadAccess::GetIndexFromData(), BitmapEx::GetMask(), BitmapReadAccess::GetScanline(), BitmapEx::GetSizePixel(), BitmapEx::GetTransparentColor(), BitmapInfoAccess::Height(), BitmapEx::IsAlpha(), BitmapEx::IsTransparent(), Or, Point, vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset(), MapMode::SetOrigin(), BitmapReadAccess::SetPixelOnData(), MapMode::SetScaleX(), MapMode::SetScaleY(), and BitmapInfoAccess::Width().

lookup_table VCL_DLLPUBLIC vcl::bitmap::get_premultiply_table

(

)

Definition at line 1073 of file BitmapTools.cxx.

References a, and premultiply().

Referenced by CanvasCairoExtractBitmapData().

lookup_table VCL_DLLPUBLIC vcl::bitmap::get_unpremultiply_table

(

)

Definition at line 1057 of file BitmapTools.cxx.

References a, and unpremultiply().

VCL_DLLPUBLIC css::uno::Sequence< sal_Int8 > vcl::bitmap::GetMaskDIB

(

BitmapEx const &

aBmpEx

)

Definition at line 636 of file BitmapTools.cxx.

References BitmapEx::GetAlpha(), AlphaMask::GetBitmap(), SvMemoryStream::GetData(), BitmapEx::GetMask(), BitmapEx::IsAlpha(), BitmapEx::IsTransparent(), SvStream::Tell(), and WriteDIB().

std::unique_ptr<ScanlineTransformer> vcl::bitmap::getScanlineTransformer	(	sal_uInt16	nBits,
		const BitmapPalette &	rPalette
	)

Definition at line 211 of file ScanlineTools.hxx.

References assert().

bool VCL_DLLPUBLIC vcl::bitmap::isHistorical8x8	(	const BitmapEx &	rBitmapEx,
		Color &	o_rBack,
		Color &	o_rFront
	)

Definition at line 1010 of file BitmapTools.cxx.

References BitmapEx::GetBitmap(), BitmapInfoAccess::GetPalette(), BitmapInfoAccess::GetPaletteEntryCount(), BitmapInfoAccess::HasPalette(), BitmapEx::IsTransparent(), and Bitmap::ReleaseAccess().

BitmapEx VCL_DLLPUBLIC vcl::bitmap::loadFromName	(	const OUString &	rFileName,
		const ImageLoadFlags	eFlags
	)

Definition at line 47 of file BitmapTools.cxx.

References StyleSettings::DetermineIconTheme(), ImageTree::get(), Application::GetSettings(), AllSettings::GetStyleSettings(), ImageTree::loadImage(), and SAL_WARN_IF.

void vcl::bitmap::loadFromSvg	(	SvStream &	rStream,
		const OUString &	sPath,
		BitmapEx &	rBitmapEx,
		double	fScalingFactor
	)

Definition at line 67 of file BitmapTools.cxx.

References aBuffer, aData, vcl::unotools::bitmapExFromXBitmap(), basegfx::B2DRange::expand(), basegfx::B2DRange::getMaxX(), basegfx::B2DRange::getMaxY(), basegfx::B2DRange::getMinX(), basegfx::B2DRange::getMinY(), comphelper::getProcessComponentContext(), basegfx::B2DRange::getRange(), SvStream::ReadBytes(), and SvStream::remainingSize().

sal_uInt8 vcl::bitmap::premultiply	(	sal_uInt8	c,
		sal_uInt8	a
	)

Definition at line 1052 of file BitmapTools.cxx.

Referenced by get_premultiply_table(), BitmapReadAccess::SetPixelForN32BitTcAbgr(), BitmapReadAccess::SetPixelForN32BitTcArgb(), BitmapReadAccess::SetPixelForN32BitTcBgra(), and BitmapReadAccess::SetPixelForN32BitTcRgba().

static bool vcl::bitmap::readAlpha ( BitmapReadAccess const *  pAlphaReadAcc, long  nY, const long  nWidth, unsigned char *  data, long  nOff  )

static

Definition at line 654 of file BitmapTools.cxx.

References BitmapReadAccess::GetColor(), BitmapColor::GetIndex(), BitmapInfoAccess::GetPaletteColor(), BitmapReadAccess::GetScanline(), BitmapInfoAccess::GetScanlineFormat(), N8BitPal, N8BitTcMask, and SAL_INFO.

Referenced by CanvasCairoExtractBitmapData().

sal_uInt8 vcl::bitmap::unpremultiply	(	sal_uInt8	c,
		sal_uInt8	a
	)

Definition at line 1047 of file BitmapTools.cxx.

Referenced by get_unpremultiply_table(), BitmapReadAccess::GetPixelForN32BitTcAbgr(), BitmapReadAccess::GetPixelForN32BitTcArgb(), BitmapReadAccess::GetPixelForN32BitTcBgra(), and BitmapReadAccess::GetPixelForN32BitTcRgba().