#include <GIFImageDecoder.h>

Inheritance diagram for WebCore::GIFImageDecoder:

Public Types
enum	GIFQuery { GIFFullQuery, GIFSizeQuery, GIFFrameCountQuery }

Public Types inherited from WebCore::ImageDecoder
enum	{ iccColorProfileHeaderLength = 128 }

Public Member Functions
	GIFImageDecoder (AlphaOption, GammaAndColorProfileOption)

virtual	~GIFImageDecoder ()

String	filenameExtension () const override

void	setData (SharedBuffer &data, bool allDataReceived) override

bool	isSizeAvailable () override

bool	setSize (const IntSize &) override

size_t	frameCount () const override

RepetitionCount	repetitionCount () const override

ImageFrame *	frameBufferAtIndex (size_t index) override

bool	setFailed () override

void	clearFrameBufferCache (size_t clearBeforeFrame) override

bool	haveDecodedRow (unsigned frameIndex, const Vector< unsigned char > &rowBuffer, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTransparentPixels)

bool	frameComplete (unsigned frameIndex, unsigned frameDuration, ImageFrame::DisposalMethod)

void	gifComplete ()

Public Member Functions inherited from WebCore::ImageDecoder
	ImageDecoder (AlphaOption, GammaAndColorProfileOption)

bool	isSizeAvailable () const

size_t	frameCount () const

RepetitionCount	repetitionCount () const

String	filenameExtension () const

std::optional< IntPoint >	hotSpot () const

IntSize	frameSizeAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default) const

bool	frameIsCompleteAtIndex (size_t) const

ImageOrientation	frameOrientationAtIndex (size_t) const

float	frameDurationAtIndex (size_t) const

bool	frameHasAlphaAtIndex (size_t) const

bool	frameAllowSubsamplingAtIndex (size_t) const

unsigned	frameBytesAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default) const

NativeImagePtr	createFrameImageAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default, DecodingMode=DecodingMode::OnDemand) const

void	setData (SharedBuffer &, bool allDataReceived)

bool	isAllDataReceived () const

void	clearFrameBufferCache (size_t)

	ImageDecoder ()

String	filenameExtension () const

bool	isSizeAvailable () const

IntSize	size () const

size_t	frameCount () const

RepetitionCount	repetitionCount () const

std::optional< IntPoint >	hotSpot () const

IntSize	frameSizeAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default) const

bool	frameIsCompleteAtIndex (size_t) const

ImageOrientation	frameOrientationAtIndex (size_t) const

float	frameDurationAtIndex (size_t) const

bool	frameHasAlphaAtIndex (size_t) const

bool	frameAllowSubsamplingAtIndex (size_t) const

unsigned	frameBytesAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default) const

NativeImagePtr	createFrameImageAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default, DecodingMode=DecodingMode::OnDemand) const

void	setData (SharedBuffer &, bool allDataReceived)

bool	isAllDataReceived () const

void	clearFrameBufferCache (size_t)

void	setTargetContext (ID2D1RenderTarget *)

	ImageDecoder (AlphaOption alphaOption, GammaAndColorProfileOption gammaAndColorProfileOption)

virtual	~ImageDecoder ()

bool	premultiplyAlpha () const

bool	isAllDataReceived () const

virtual IntSize	size ()

IntSize	scaledSize ()

virtual IntSize	frameSizeAtIndex (size_t, SubsamplingLevel)

bool	frameIsCompleteAtIndex (size_t)

bool	frameHasAlphaAtIndex (size_t) const

unsigned	frameBytesAtIndex (size_t) const

float	frameDurationAtIndex (size_t)

NativeImagePtr	createFrameImageAtIndex (size_t, SubsamplingLevel=SubsamplingLevel::Default, DecodingMode=DecodingMode::OnDemand)

void	setIgnoreGammaAndColorProfile (bool flag)

bool	ignoresGammaAndColorProfile () const

ImageOrientation	frameOrientationAtIndex (size_t) const

bool	frameAllowSubsamplingAtIndex (size_t) const

bool	failed () const

virtual std::optional< IntPoint >	hotSpot () const

Additional Inherited Members
Static Public Member Functions inherited from WebCore::ImageDecoder
static std::unique_ptr< ImageDecoder >	create (const SharedBuffer &, AlphaOption alphaOption, GammaAndColorProfileOption gammaAndColorProfileOption)

static size_t	bytesDecodedToDetermineProperties ()

static std::unique_ptr< ImageDecoder >	create (const SharedBuffer &, AlphaOption, GammaAndColorProfileOption)

static size_t	bytesDecodedToDetermineProperties ()

static IWICImagingFactory *	systemImagingFactory ()

static std::unique_ptr< ImageDecoder >	create (const SharedBuffer &data, AlphaOption, GammaAndColorProfileOption)

static bool	rgbColorProfile (const char *profileData, unsigned profileLength)

static size_t	bytesDecodedToDetermineProperties ()

static SubsamplingLevel	subsamplingLevelForScale (float, SubsamplingLevel)

static bool	inputDeviceColorProfile (const char *profileData, unsigned profileLength)

Protected Member Functions inherited from WebCore::ImageDecoder
void	prepareScaleDataIfNecessary ()

int	upperBoundScaledX (int origX, int searchStart=0)

int	lowerBoundScaledX (int origX, int searchStart=0)

int	upperBoundScaledY (int origY, int searchStart=0)

int	lowerBoundScaledY (int origY, int searchStart=0)

int	scaledY (int origY, int searchStart=0)

Protected Attributes inherited from WebCore::ImageDecoder
bool	m_isAllDataReceived { false }

RetainPtr< CGImageSourceRef >	m_nativeDecoder

IntSize	m_size

COMPtr< IWICBitmapDecoder >	m_nativeDecoder

COMPtr< ID2D1RenderTarget >	m_renderTarget

RefPtr< SharedBuffer >	m_data

Vector< ImageFrame, 1 >	m_frameBufferCache

bool	m_scaled { false }

Vector< int >	m_scaledColumns

Vector< int >	m_scaledRows

bool	m_premultiplyAlpha

bool	m_ignoreGammaAndColorProfile

ImageOrientation	m_orientation

Member Enumeration Documentation

◆ GIFQuery

enum WebCore::GIFImageDecoder::GIFQuery

Enumerator
GIFFullQuery
GIFSizeQuery
GIFFrameCountQuery

Constructor & Destructor Documentation

◆ GIFImageDecoder()

WebCore::GIFImageDecoder::GIFImageDecoder	(	AlphaOption	alphaOption,
		GammaAndColorProfileOption	gammaAndColorProfileOption
	)

◆ ~GIFImageDecoder()

WebCore::GIFImageDecoder::~GIFImageDecoder ( )

virtual

Member Function Documentation

◆ clearFrameBufferCache()

void WebCore::GIFImageDecoder::clearFrameBufferCache ( size_t clearBeforeFrame )

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ filenameExtension()

String WebCore::GIFImageDecoder::filenameExtension ( ) const

inlineoverridevirtual

Implements WebCore::ImageDecoder.

◆ frameBufferAtIndex()

ImageFrame * WebCore::GIFImageDecoder::frameBufferAtIndex ( size_t index )

overridevirtual

Implements WebCore::ImageDecoder.

◆ frameComplete()

bool WebCore::GIFImageDecoder::frameComplete	(	unsigned	frameIndex,
		unsigned	frameDuration,
		ImageFrame::DisposalMethod	disposalMethod
	)

◆ frameCount()

size_t WebCore::GIFImageDecoder::frameCount ( ) const

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ gifComplete()

void WebCore::GIFImageDecoder::gifComplete ( )

◆ haveDecodedRow()

bool WebCore::GIFImageDecoder::haveDecodedRow	(	unsigned	frameIndex,
		const Vector< unsigned char > &	rowBuffer,
		size_t	width,
		size_t	rowNumber,
		unsigned	repeatCount,
		bool	writeTransparentPixels
	)

◆ isSizeAvailable()

bool WebCore::GIFImageDecoder::isSizeAvailable ( )

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ repetitionCount()

RepetitionCount WebCore::GIFImageDecoder::repetitionCount ( ) const

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ setData()

void WebCore::GIFImageDecoder::setData	(	SharedBuffer &	data,
		bool	allDataReceived
	)

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ setFailed()

bool WebCore::GIFImageDecoder::setFailed ( )

overridevirtual

Reimplemented from WebCore::ImageDecoder.

◆ setSize()

bool WebCore::GIFImageDecoder::setSize ( const IntSize & size )

overridevirtual

Reimplemented from WebCore::ImageDecoder.

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

Source/WebCore/platform/image-decoders/gif/GIFImageDecoder.h
Source/WebCore/platform/image-decoders/gif/GIFImageDecoder.cpp

Public Types

Public Member Functions

Additional Inherited Members

Member Enumeration Documentation

◆ GIFQuery

Constructor & Destructor Documentation

◆ GIFImageDecoder()

◆ ~GIFImageDecoder()

Member Function Documentation

◆ clearFrameBufferCache()

◆ filenameExtension()

◆ frameBufferAtIndex()

◆ frameComplete()

◆ frameCount()

◆ gifComplete()

◆ haveDecodedRow()

◆ isSizeAvailable()

◆ repetitionCount()

◆ setData()

◆ setFailed()

◆ setSize()