#include <SkImageFilter_Base.h>

Inheritance diagram for SkImageFilter_Base:

Classes
class	Common

Public Types
using	MatrixCapability = skif::MatrixCapability

Public Types inherited from SkImageFilter
enum	MapDirection { kForward_MapDirection , kReverse_MapDirection }

Public Types inherited from SkFlattenable
enum	Type { kSkColorFilter_Type , kSkBlender_Type , kSkDrawable_Type , kSkDrawLooper_Type , kSkImageFilter_Type , kSkMaskFilter_Type , kSkPathEffect_Type , kSkShader_Type }

typedef sk_sp< SkFlattenable >(*	Factory) (SkReadBuffer &)

Public Member Functions
skif::FilterResult	filterImage (const skif::Context &context) const

sk_sp< SkImage >	makeImageWithFilter (sk_sp< skif::Backend > backend, sk_sp< SkImage > src, const SkIRect &subset, const SkIRect &clipBounds, SkIRect outSubset, SkIPoint offset) const

skif::LayerSpace< SkIRect >	getInputBounds (const skif::Mapping &mapping, const skif::DeviceSpace< SkIRect > &desiredOutput, std::optional< skif::ParameterSpace< SkRect > > knownContentBounds) const

std::optional< skif::DeviceSpace< SkIRect > >	getOutputBounds (const skif::Mapping &mapping, const skif::ParameterSpace< SkRect > &contentBounds) const

bool	affectsTransparentBlack () const

bool	usesSource () const

MatrixCapability	getCTMCapability () const

uint32_t	uniqueID () const

SkFlattenable::Type	getFlattenableType () const override

Public Member Functions inherited from SkImageFilter
SkIRect	filterBounds (const SkIRect &src, const SkMatrix &ctm, MapDirection, const SkIRect *inputRect=nullptr) const

bool	isColorFilterNode (SkColorFilter **filterPtr) const

bool	asColorFilter (SkColorFilter **filterPtr) const

bool	asAColorFilter (SkColorFilter **filterPtr) const

int	countInputs () const

const SkImageFilter *	getInput (int i) const

virtual SkRect	computeFastBounds (const SkRect &bounds) const

bool	canComputeFastBounds () const

sk_sp< SkImageFilter >	makeWithLocalMatrix (const SkMatrix &matrix) const

Public Member Functions inherited from SkFlattenable
	SkFlattenable ()

virtual Factory	getFactory () const =0

virtual const char *	getTypeName () const =0

sk_sp< SkData >	serialize (const SkSerialProcs *=nullptr) const

size_t	serialize (void memory, size_t memory_size, const SkSerialProcs =nullptr) const

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()

virtual	~SkRefCntBase ()

bool	unique () const

void	ref () const

void	unref () const

Static Public Member Functions
static SkFlattenable::Type	GetFlattenableType ()

static std::pair< sk_sp< SkImageFilter >, std::optional< SkRect > >	Unflatten (SkReadBuffer &buffer)

Static Public Member Functions inherited from SkImageFilter
static sk_sp< SkImageFilter >	Deserialize (const void data, size_t size, const SkDeserialProcs procs=nullptr)

Static Public Member Functions inherited from SkFlattenable
static Factory	NameToFactory (const char name[])

static const char *	FactoryToName (Factory)

static void	Register (const char name[], Factory)

static sk_sp< SkFlattenable >	Deserialize (Type, const void data, size_t length, const SkDeserialProcs procs=nullptr)

Protected Member Functions
	SkImageFilter_Base (sk_sp< SkImageFilter > const *inputs, int inputCount, std::optional< bool > usesSrc={})

	~SkImageFilter_Base () override

void	flatten (SkWriteBuffer &) const override

skif::LayerSpace< SkIRect >	getChildInputLayerBounds (int index, const skif::Mapping &mapping, const skif::LayerSpace< SkIRect > &desiredOutput, std::optional< skif::LayerSpace< SkIRect > > contentBounds) const

std::optional< skif::LayerSpace< SkIRect > >	getChildOutputLayerBounds (int index, const skif::Mapping &mapping, std::optional< skif::LayerSpace< SkIRect > > contentBounds) const

skif::FilterResult	getChildOutput (int index, const skif::Context &ctx) const

Protected Member Functions inherited from SkImageFilter
sk_sp< SkImageFilter >	refMe () const

Private Member Functions
virtual bool	onIsColorFilterNode (SkColorFilter **) const

virtual MatrixCapability	onGetCTMCapability () const

virtual bool	onAffectsTransparentBlack () const

virtual bool	ignoreInputsAffectsTransparentBlack () const

virtual skif::FilterResult	onFilterImage (const skif::Context &context) const =0

virtual skif::LayerSpace< SkIRect >	onGetInputLayerBounds (const skif::Mapping &mapping, const skif::LayerSpace< SkIRect > &desiredOutput, std::optional< skif::LayerSpace< SkIRect > > contentBounds) const =0

virtual std::optional< skif::LayerSpace< SkIRect > >	onGetOutputLayerBounds (const skif::Mapping &mapping, std::optional< skif::LayerSpace< SkIRect > > contentBounds) const =0

Friends
class	SkImageFilter

class	SkGraphics

Detailed Description

Definition at line 23 of file SkImageFilter_Base.h.

Member Typedef Documentation

◆ MatrixCapability

using SkImageFilter_Base::MatrixCapability = skif::MatrixCapability

This call returns the maximum "kind" of CTM for a filter and all of its (non-null) inputs.

Definition at line 127 of file SkImageFilter_Base.h.

Constructor & Destructor Documentation

◆ SkImageFilter_Base()

SkImageFilter_Base::SkImageFilter_Base	(	sk_sp< SkImageFilter > const *	inputs,
		int	inputCount,
		std::optional< bool >	usesSrc = `{}`
	)

protected

Definition at line 148 of file SkImageFilter.cpp.

        : fUsesSrcInput(usesSrc.has_value() ? *usesSrc : false)
        , fUniqueID(next_image_filter_unique_id()) {
    fInputs.reset(inputCount);
 
    for (int i = 0; i < inputCount; ++i) {
        if (!usesSrc.has_value() && (!inputs[i] || as_IFB(inputs[i])->usesSource())) {
            fUsesSrcInput = true;
        }
        fInputs[i] = inputs[i];
    }
}

◆ ~SkImageFilter_Base()

SkImageFilter_Base::~SkImageFilter_Base ( )

overrideprotected

Definition at line 163 of file SkImageFilter.cpp.

                                        {
    SkImageFilterCache::Get()->purgeByImageFilter(this);
}

Member Function Documentation

◆ affectsTransparentBlack()

bool SkImageFilter_Base::affectsTransparentBlack ( ) const

Definition at line 102 of file SkImageFilter.cpp.

                                                       {
    if (this->onAffectsTransparentBlack()) {
        return true;
    } else if (this->ignoreInputsAffectsTransparentBlack()) {
        // TODO(skbug.com/14611): Automatically infer this from output bounds being finite
        return false;
    }
    for (int i = 0; i < this->countInputs(); i++) {
        const SkImageFilter* input = this->getInput(i);
        if (input && as_IFB(input)->affectsTransparentBlack()) {
            return true;
        }
    }
    return false;
}

◆ filterImage()

skif::FilterResult SkImageFilter_Base::filterImage ( const skif::Context & context ) const

Request a new filtered image to be created from the src image. The returned skif::Image provides both the pixel data and the origin point that it should be drawn at, relative to the layer space defined by the provided context.

If the result image cannot be created, or the result would be transparent black, returns a skif::Image that has a null special image, in which its origin should be ignored.

TODO: Right now the imagefilters sometimes return empty result bitmaps/ specialimages. That doesn't seem quite right.

Definition at line 231 of file SkImageFilter.cpp.

                                                                                 {
    context.markVisitedImageFilter();
 
    skif::FilterResult result;
    if (context.desiredOutput().isEmpty() || !context.mapping().layerMatrix().isFinite()) {
        return result;
    }
 
    // Some image filters that operate on the source image still affect transparent black, so if
    // there is clipping, we may have optimized away the source image as an empty input, but still
    // need to run the filter on it. This means `fUsesSrcInput` is not equivalent to the source
    // being non-null.
    const bool srcInKey = fUsesSrcInput && context.source();
    uint32_t srcGenID = srcInKey ? context.source().image()->uniqueID() : SK_InvalidUniqueID;
    const SkIRect srcSubset = srcInKey ? context.source().image()->subset() : SkIRect::MakeWH(0, 0);
 
    SkImageFilterCacheKey key(fUniqueID,
                              context.mapping().layerMatrix(),
                              SkIRect(context.desiredOutput()),
                              srcGenID, srcSubset);
    if (context.backend()->cache() && context.backend()->cache()->get(key, &result)) {
        context.markCacheHit();
        return result;
    }
 
    result = this->onFilterImage(context);
 
    if (context.backend()->cache()) {
        context.backend()->cache()->set(key, this, result);
    }
 
    return result;
}

◆ flatten()

void SkImageFilter_Base::flatten ( SkWriteBuffer & ) const

overrideprotectedvirtual

Override this if your subclass needs to record data that it will need to recreate itself from its CreateProc (returned by getFactory()).

DEPRECATED public : will move to protected ... use serialize() instead

Reimplemented from SkFlattenable.

Reimplemented in SkLocalMatrixImageFilter, and SkRuntimeImageFilter.

Definition at line 220 of file SkImageFilter.cpp.

                                                            {
    buffer.writeInt(fInputs.count());
    for (int i = 0; i < fInputs.count(); i++) {
        const SkImageFilter* input = this->getInput(i);
        buffer.writeBool(input != nullptr);
        if (input != nullptr) {
            buffer.writeFlattenable(input);
        }
    }
}

◆ getChildInputLayerBounds()

skif::LayerSpace< SkIRect > SkImageFilter_Base::getChildInputLayerBounds	(	int	index,
		const skif::Mapping &	mapping,
		const skif::LayerSpace< SkIRect > &	desiredOutput,
		std::optional< skif::LayerSpace< SkIRect > >	contentBounds
	)		const

protected

Definition at line 348 of file SkImageFilter.cpp.

                                                                  {
    // The required input for childFilter filter, or 'contentBounds' intersected with
    // 'desiredOutput' if the filter is null and the source image is used (i.e. the identity filter)
    const SkImageFilter* childFilter = this->getInput(index);
    if (childFilter) {
        return as_IFB(childFilter)->onGetInputLayerBounds(mapping, desiredOutput, contentBounds);
    } else {
        // NOTE: We don't calculate the intersection between content and root desired output because
        // the desired output can expand or contract as it propagates through the filter graph to
        // the leaves that would actually sample from the source content.
        skif::LayerSpace<SkIRect> visibleContent = desiredOutput;
        if (contentBounds && !visibleContent.intersect(*contentBounds)) {
            return skif::LayerSpace<SkIRect>::Empty();
        } else {
            // This will be equal to 'desiredOutput' if the contentBounds are unknown.
            return visibleContent;
        }
    }
}

◆ getChildOutput()

skif::FilterResult SkImageFilter_Base::getChildOutput	(	int	index,
		const skif::Context &	ctx
	)		const

protected

Definition at line 383 of file SkImageFilter.cpp.

                                                                                           {
    const SkImageFilter* input = this->getInput(index);
    return input ? as_IFB(input)->filterImage(ctx) : ctx.source();
}

◆ getChildOutputLayerBounds()

std::optional< skif::LayerSpace< SkIRect > > SkImageFilter_Base::getChildOutputLayerBounds	(	int	index,
		const skif::Mapping &	mapping,
		std::optional< skif::LayerSpace< SkIRect > >	contentBounds
	)		const

protected

Definition at line 372 of file SkImageFilter.cpp.

                                                                  {
    // The output for just childFilter filter, or 'contentBounds' if the filter is null and
    // the source image is used (i.e. the identity filter applied to the source).
    const SkImageFilter* childFilter = this->getInput(index);
    return childFilter ? as_IFB(childFilter)->onGetOutputLayerBounds(mapping, contentBounds)
                       : contentBounds;
}

◆ getCTMCapability()

SkImageFilter_Base::MatrixCapability SkImageFilter_Base::getCTMCapability ( ) const

Definition at line 337 of file SkImageFilter.cpp.

                                                                              {
    MatrixCapability result = this->onGetCTMCapability();
    const int count = this->countInputs();
    for (int i = 0; i < count; ++i) {
        if (const SkImageFilter_Base* input = as_IFB(this->getInput(i))) {
            result = std::min(result, input->getCTMCapability());
        }
    }
    return result;
}

◆ GetFlattenableType()

static SkFlattenable::Type SkImageFilter_Base::GetFlattenableType ( )

inlinestatic

Definition at line 132 of file SkImageFilter_Base.h.

                                                  {
        return kSkImageFilter_Type;
    }

◆ getFlattenableType()

SkFlattenable::Type SkImageFilter_Base::getFlattenableType ( ) const

inlineoverridevirtual

Implements SkFlattenable.

Definition at line 136 of file SkImageFilter_Base.h.

                                                          {
        return kSkImageFilter_Type;
    }

◆ getInputBounds()

skif::LayerSpace< SkIRect > SkImageFilter_Base::getInputBounds	(	const skif::Mapping &	mapping,
		const skif::DeviceSpace< SkIRect > &	desiredOutput,
		std::optional< skif::ParameterSpace< SkRect > >	knownContentBounds
	)		const

Calculate the smallest-possible required layer bounds that would provide sufficient information to correctly compute the image filter for every pixel in the desired output bounds. The 'desiredOutput' is intended to represent either the root render target bounds, or the device-space bounds of the current clip. If the bounds of the content that will be drawn into the layer is known, 'knownContentBounds' should be provided, since it can be used to restrict the size of the layer if the image filter DAG does not affect transparent black.

The returned rect is in the layer space defined by 'mapping', so it directly represents the size and location of the SkDevice created to rasterize the content prior to invoking the image filter (assuming its CTM and basis matrix are configured to match 'mapping').

While this operation transforms an device-space output bounds to a layer-space input bounds, it is not necessarily the inverse of getOutputBounds(). For instance, a blur needs to have an outset margin when reading pixels at the edge (to satisfy its kernel), thus it expands its required input rect to include every pixel that contributes to the desired output rect.

Parameters

mapping	The coordinate space mapping that defines both the transformation between local and layer, and layer to root device space, that will be used when the filter is later invoked.
desiredOutput	The desired output boundary that needs to be covered by the filter's output (assuming that the filter is then invoked with a suitable input)
knownContentBounds	Optional, the known layer-space bounds of the non-transparent content that would be rasterized in the source input image. Assumes unbounded content when not provided.

Returns: The layer-space bounding box to use for an SkDevice when drawing the source image.

Definition at line 302 of file SkImageFilter.cpp.

                                                                          {
    // Map both the device-space desired coverage area and the known content bounds to layer space
    skif::LayerSpace<SkIRect> desiredBounds = mapping.deviceToLayer(desiredOutput);
 
    // If we have no known content bounds, leave 'contentBounds' uninstantiated to represent
    // infinite possible content.
    std::optional<skif::LayerSpace<SkIRect>> contentBounds;
    if (knownContentBounds) {
        contentBounds = mapping.paramToLayer(*knownContentBounds).roundOut();
    }
 
    // Process the layer-space desired output with the filter DAG to determine required input
    return this->onGetInputLayerBounds(mapping, desiredBounds, contentBounds);
}

◆ getOutputBounds()

std::optional< skif::DeviceSpace< SkIRect > > SkImageFilter_Base::getOutputBounds	(	const skif::Mapping &	mapping,
		const skif::ParameterSpace< SkRect > &	contentBounds
	)		const

Calculate the device-space bounds of the output of this filter DAG, if it were to process an image layer covering the 'contentBounds'. The 'mapping' defines how the content will be transformed to layer space when it is drawn, and how the output filter image is then transformed to the final device space (i.e. it specifies the mapping between the root device space and the parameter space of the initially provided content).

While this operation transforms a parameter-space input bounds to an device-space output bounds, it is not necessarily the inverse of getInputBounds(). For instance, a blur needs to have an outset margin when reading pixels at the edge (to satisfy its kernel), so it will generate a result larger than its input (so that the blur is visible) and, thus, expands its output to include every pixel that it will touch.

If the returned optional does not have a value, the caller should interpret this to mean that the output of the image filter will fill the entirety of whatever clipped device it's drawn into.

Parameters

mapping	The coordinate space mapping that defines both the transformation between local and layer, and layer to root device space, that will be used when the filter is later invoked.
contentBounds	The local-space bounds of the non-transparent content that would be drawn into the source image prior to filtering with this DAG, i.e. the same as 'knownContentBounds' in getInputBounds().

Returns: The root device-space bounding box of the filtered image, were it applied to content contained by 'contentBounds' and then drawn with 'mapping' to the root device (w/o any additional clipping).

Definition at line 320 of file SkImageFilter.cpp.

                                                               {
    // Map the input content into the layer space where filtering will occur
    skif::LayerSpace<SkRect> layerContent = mapping.paramToLayer(contentBounds);
    // Determine the filter DAGs output bounds in layer space
    std::optional<skif::LayerSpace<SkIRect>> filterOutput =
            this->onGetOutputLayerBounds(mapping, layerContent.roundOut());
    if (filterOutput) {
        // Map all the way to device space
        return mapping.layerToDevice(*filterOutput);
    } else {
        // Infinite layer output is infinite device-space output too
        return {};
    }
}

◆ ignoreInputsAffectsTransparentBlack()

virtual bool SkImageFilter_Base::ignoreInputsAffectsTransparentBlack ( ) const

inlineprivatevirtual

Return true if affectsTransparentBlack() should only be based on onAffectsTransparentBlack() and ignore the transparency behavior of child input filters.

Definition at line 240 of file SkImageFilter_Base.h.

240{ return false; }

◆ makeImageWithFilter()

sk_sp< SkImage > SkImageFilter_Base::makeImageWithFilter	(	sk_sp< skif::Backend >	backend,
		sk_sp< SkImage >	src,
		const SkIRect &	subset,
		const SkIRect &	clipBounds,
		SkIRect *	outSubset,
		SkIPoint *	offset
	)		const

Create a filtered version of the 'src' image using this filter. This is basically a wrapper around filterImage that prepares the skif::Context to filter the 'src' image directly, for implementing the SkImages::MakeWithFilter API calls.

Definition at line 265 of file SkImageFilter.cpp.

                                                                               {
    if (!outSubset || !offset || !src->bounds().contains(subset)) {
        return nullptr;
    }
 
    auto srcSpecialImage = backend->makeImage(subset, src);
    if (!srcSpecialImage) {
        return nullptr;
    }
 
    skif::Stats stats;
    const skif::Context context{std::move(backend),
                                skif::Mapping(SkMatrix::I()),
                                skif::LayerSpace<SkIRect>(clipBounds),
                                skif::FilterResult(std::move(srcSpecialImage),
                                                   skif::LayerSpace<SkIPoint>(subset.topLeft())),
                                src->imageInfo().colorSpace(),
                                &stats};
 
    sk_sp<SkSpecialImage> result = this->filterImage(context).imageAndOffset(context, offset);
    stats.reportStats();
 
    if (!result) {
        return nullptr;
    }
 
    SkASSERT(clipBounds.contains(SkIRect::MakeXYWH(offset->fX, offset->fY,
                                                   result->width(), result->height())));
    *outSubset = result->subset();
    return result->asImage();
}

◆ onAffectsTransparentBlack()

virtual bool SkImageFilter_Base::onAffectsTransparentBlack ( ) const

inlineprivatevirtual

Return true if this filter would transform transparent black pixels to a color other than transparent black. When false, optimizations can be taken to discard regions known to be transparent black and thus process fewer pixels.

Reimplemented in SkRuntimeImageFilter.

Definition at line 234 of file SkImageFilter_Base.h.

234{ return false; }

◆ onFilterImage()

virtual skif::FilterResult SkImageFilter_Base::onFilterImage ( const skif::Context & context ) const

privatepure virtual

This is the virtual which should be overridden by the derived class to perform image filtering. Subclasses are responsible for recursing to their input filters, although the filterInput() function is provided to handle all necessary details of this.

If the image cannot be created (either because of an error or if the result would be empty because it was clipped out), this should return a filtered Image with a null SkSpecialImage. In these situations, callers that do not affect transparent black can end early, since the "transparent" implicit image would be unchanged. Callers that affect transparent black need to safely handle these null and empty images and return an image filling the context's clip bounds as if its input filtered image were transparent black.

Implemented in SkRuntimeImageFilter, and SkLocalMatrixImageFilter.

◆ onGetCTMCapability()

virtual MatrixCapability SkImageFilter_Base::onGetCTMCapability ( ) const

inlineprivatevirtual

Return the most complex matrix type this filter can support (mapping from its parameter space to a layer space). If this returns anything less than kComplex, the filter only needs to worry about mapping from parameter to layer using a matrix that is constrained in that way (eg, scale+translate).

Reimplemented in SkLocalMatrixImageFilter, and SkRuntimeImageFilter.

Definition at line 225 of file SkImageFilter_Base.h.

                                                        {
        return MatrixCapability::kScaleTranslate;
    }

◆ onGetInputLayerBounds()

virtual skif::LayerSpace< SkIRect > SkImageFilter_Base::onGetInputLayerBounds	(	const skif::Mapping &	mapping,
		const skif::LayerSpace< SkIRect > &	desiredOutput,
		std::optional< skif::LayerSpace< SkIRect > >	contentBounds
	)		const

privatepure virtual

Calculates the necessary input layer size in order for the final output of the filter to cover the desired output bounds. The provided 'desiredOutput' represents the requested input bounds for this node's parent filter node, i.e. this function answers "what does this node require for input in order to satisfy (as its own output), the input needs of its parent?".

'contentBounds' represents the bounds of the non-transparent content that will form the source image when the filter graph is invoked. If it's not instantiated, implementations should treat the content as extending infinitely. However, since the output is known and bounded, implementations should still be able to determine a finite input bounds under these circumstances.

Unlike the public getInputBounds(), all internal bounds calculations are done in the shared layer space defined by 'mapping'.

Implemented in SkLocalMatrixImageFilter, and SkRuntimeImageFilter.

◆ onGetOutputLayerBounds()

virtual std::optional< skif::LayerSpace< SkIRect > > SkImageFilter_Base::onGetOutputLayerBounds	(	const skif::Mapping &	mapping,
		std::optional< skif::LayerSpace< SkIRect > >	contentBounds
	)		const

privatepure virtual

Calculates the output bounds that this filter node would touch when processing an input sized to 'contentBounds'. This function is responsible for recursing to its child image filters and accounting for what they output. It is up to the filter to determine how to aggregate the outputs of its children.

'contentBounds' represents the bounds of the non-transparent content that will form the source image when the filter graph is invoked. If it's not instantiated, implementations should treat the content as extending infinitely. However, since the output is known and bounded, implementations should still be able to determine a finite input bounds under these circumstances.

If the non-transparent output extends infinitely, subclasses should return an uninstantiated optional. Implementations must also be able to handle when their children return such unbounded "outputs" and react accordingly.

Unlike the public getOutputBounds(), all internal bounds calculations are done in the shared layer space defined by 'mapping'.

Implemented in SkLocalMatrixImageFilter, and SkRuntimeImageFilter.

◆ onIsColorFilterNode()

virtual bool SkImageFilter_Base::onIsColorFilterNode ( SkColorFilter ** ) const

inlineprivatevirtual

Return true (and returns a ref'd colorfilter) if this node in the DAG is just a colorfilter w/o cropping constraints.

Definition at line 217 of file SkImageFilter_Base.h.

217{ return false; }

◆ Unflatten()

std::pair< sk_sp< SkImageFilter >, std::optional< SkRect > > SkImageFilter_Base::Unflatten ( SkReadBuffer & buffer )

static

Definition at line 168 of file SkImageFilter.cpp.

                                                  {
    Common common;
    if (!common.unflatten(buffer, 1)) {
        return {nullptr, std::nullopt};
    } else {
        return {common.getInput(0), common.cropRect()};
    }
}

◆ uniqueID()

uint32_t SkImageFilter_Base::uniqueID ( ) const

inline

Definition at line 130 of file SkImageFilter_Base.h.

130{ return fUniqueID; }

◆ usesSource()

bool SkImageFilter_Base::usesSource ( ) const

inline

Definition at line 122 of file SkImageFilter_Base.h.

122{ return fUsesSrcInput; }

Friends And Related Symbol Documentation

◆ SkGraphics

friend class SkGraphics

friend

Definition at line 205 of file SkImageFilter_Base.h.

◆ SkImageFilter

friend class SkImageFilter

friend

Definition at line 203 of file SkImageFilter_Base.h.

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

third_party/skia/src/core/SkImageFilter_Base.h
third_party/skia/src/core/SkImageFilter.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ MatrixCapability

Constructor & Destructor Documentation

◆ SkImageFilter_Base()

◆ ~SkImageFilter_Base()

Member Function Documentation

◆ affectsTransparentBlack()

◆ filterImage()

◆ flatten()

◆ getChildInputLayerBounds()

◆ getChildOutput()

◆ getChildOutputLayerBounds()

◆ getCTMCapability()

◆ GetFlattenableType()

◆ getFlattenableType()

◆ getInputBounds()

◆ getOutputBounds()

◆ ignoreInputsAffectsTransparentBlack()

◆ makeImageWithFilter()

◆ onAffectsTransparentBlack()

◆ onFilterImage()

◆ onGetCTMCapability()

◆ onGetInputLayerBounds()

◆ onGetOutputLayerBounds()

◆ onIsColorFilterNode()

◆ Unflatten()

◆ uniqueID()

◆ usesSource()

Friends And Related Symbol Documentation

◆ SkGraphics

◆ SkImageFilter