#include <image_filter.h>

Inheritance diagram for flutter::ImageFilter:

Public Member Functions
	~ImageFilter () override

void	initBlur (double sigma_x, double sigma_y, int tile_mode_index)

void	initDilate (double radius_x, double radius_y)

void	initErode (double radius_x, double radius_y)

void	initMatrix (const tonic::Float64List &matrix4, int filter_quality_index)

void	initColorFilter (ColorFilter *colorFilter)

void	initComposeFilter (ImageFilter outer, ImageFilter inner)

void	initShader (ReusableFragmentShader *shader)

const std::shared_ptr< DlImageFilter >	filter (DlTileMode mode) const

Public Member Functions inherited from flutter::RefCountedDartWrappable< ImageFilter >
virtual void	RetainDartWrappableReference () const override

virtual void	ReleaseDartWrappableReference () const override

Public Member Functions inherited from fml::RefCountedThreadSafe< T >
void	Release () const

Public Member Functions inherited from fml::internal::RefCountedThreadSafeBase
void	AddRef () const

bool	HasOneRef () const

void	AssertHasOneRef () const

Public Member Functions inherited from tonic::DartWrappable
	DartWrappable ()

virtual const DartWrapperInfo &	GetDartWrapperInfo () const =0

Dart_Handle	CreateDartWrapper (DartState *dart_state)

void	AssociateWithDartWrapper (Dart_Handle wrappable)

void	ClearDartWrapper ()

Dart_WeakPersistentHandle	dart_wrapper () const

Static Public Member Functions
static void	Create (Dart_Handle wrapper)

static DlImageSampling	SamplingFromIndex (int filterQualityIndex)

static DlFilterMode	FilterModeFromIndex (int index)

static bool	equals (ImageFilter a, ImageFilter b)

static void	RegisterNatives (tonic::DartLibraryNatives *natives)

Additional Inherited Members
Public Types inherited from tonic::DartWrappable
enum	DartNativeFields { kPeerIndex , kNumberOfNativeFields }

Protected Member Functions inherited from fml::RefCountedThreadSafe< T >
	RefCountedThreadSafe ()

	~RefCountedThreadSafe ()

Protected Member Functions inherited from fml::internal::RefCountedThreadSafeBase
	RefCountedThreadSafeBase ()

	~RefCountedThreadSafeBase ()

bool	Release () const

void	Adopt ()

Protected Member Functions inherited from tonic::DartWrappable
virtual	~DartWrappable ()

Static Protected Member Functions inherited from tonic::DartWrappable
static Dart_PersistentHandle	GetTypeForWrapper (tonic::DartState *dart_state, const tonic::DartWrapperInfo &wrapper_info)

Detailed Description

Definition at line 21 of file image_filter.h.

Constructor & Destructor Documentation

◆ ~ImageFilter()

flutter::ImageFilter::~ImageFilter ( )

override

Definition at line 56 of file image_filter.cc.

56{}

Member Function Documentation

◆ Create()

void flutter::ImageFilter::Create ( Dart_Handle wrapper )

static

Definition at line 23 of file image_filter.cc.

                                            {
  UIDartState::ThrowIfUIOperationsProhibited();
  auto res = fml::MakeRefCounted<ImageFilter>();
  res->AssociateWithDartWrapper(wrapper);
}

References flutter::UIDartState::ThrowIfUIOperationsProhibited().

◆ equals()

bool flutter::ImageFilter::equals	(	ImageFilter *	a,
		ImageFilter *	b
	)

static

Definition at line 128 of file image_filter.cc.

                                                       {
  return a->filter_ == b->filter_;
}

◆ filter()

const std::shared_ptr< DlImageFilter > flutter::ImageFilter::filter ( DlTileMode mode ) const

Definition at line 58 of file image_filter.cc.

                           {
  if (is_dynamic_tile_mode_) {
    FML_DCHECK(filter_.get() != nullptr);
    const DlBlurImageFilter* blur_filter = filter_->asBlur();
    FML_DCHECK(blur_filter != nullptr);
    if (blur_filter->tile_mode() != mode) {
      return DlBlurImageFilter::Make(blur_filter->sigma_x(),
                                     blur_filter->sigma_y(), mode);
    }
  }
  return filter_;
}

References FML_DCHECK, flutter::DlBlurImageFilter::Make(), flutter::mode, flutter::DlBlurImageFilter::sigma_x(), flutter::DlBlurImageFilter::sigma_y(), and flutter::DlBlurImageFilter::tile_mode().

Referenced by initComposeFilter(), flutter::Paint::paint(), flutter::SceneBuilder::pushBackdropFilter(), and flutter::SceneBuilder::pushImageFilter().

◆ FilterModeFromIndex()

DlFilterMode flutter::ImageFilter::FilterModeFromIndex ( int index )

static

Definition at line 47 of file image_filter.cc.

                                                                    {
  if (filterQualityIndex <= 0) {
    return DlFilterMode::kNearest;
  }
  return DlFilterMode::kLinear;
}

References flutter::kLinear, and flutter::kNearest.

◆ initBlur()

void flutter::ImageFilter::initBlur	(	double	sigma_x,
		double	sigma_y,
		int	tile_mode_index
	)

Definition at line 72 of file image_filter.cc.

                                                {
  DlTileMode tile_mode;
  bool is_dynamic;
  if (tile_mode_index < 0) {
    is_dynamic = true;
    tile_mode = DlTileMode::kClamp;
  } else {
    is_dynamic = false;
    tile_mode = static_cast<DlTileMode>(tile_mode_index);
  }
  filter_ = DlBlurImageFilter::Make(SafeNarrow(sigma_x), SafeNarrow(sigma_y),
                                    tile_mode);
  // If it was a NOP filter, don't bother processing dynamic substitutions
  // (They'd fail the FML_DCHECK anyway)
  is_dynamic_tile_mode_ = is_dynamic && filter_;
}

References flutter::kClamp, flutter::DlBlurImageFilter::Make(), and flutter::SafeNarrow().

◆ initColorFilter()

void flutter::ImageFilter::initColorFilter ( ColorFilter * colorFilter )

Definition at line 110 of file image_filter.cc.

                                                          {
  FML_DCHECK(colorFilter);
  is_dynamic_tile_mode_ = false;
  filter_ = DlColorFilterImageFilter::Make(colorFilter->filter());
}

References flutter::ColorFilter::filter(), FML_DCHECK, and flutter::DlColorFilterImageFilter::Make().

◆ initComposeFilter()

void flutter::ImageFilter::initComposeFilter	(	ImageFilter *	outer,
		ImageFilter *	inner
	)

Definition at line 116 of file image_filter.cc.

                                                                          {
  FML_DCHECK(outer && inner);
  is_dynamic_tile_mode_ = false;
  filter_ = DlComposeImageFilter::Make(outer->filter(DlTileMode::kClamp),
                                       inner->filter(DlTileMode::kClamp));
}

References filter(), FML_DCHECK, flutter::kClamp, and flutter::DlComposeImageFilter::Make().

◆ initDilate()

void flutter::ImageFilter::initDilate	(	double	radius_x,
		double	radius_y
	)

Definition at line 91 of file image_filter.cc.

                                                             {
  is_dynamic_tile_mode_ = false;
  filter_ =
      DlDilateImageFilter::Make(SafeNarrow(radius_x), SafeNarrow(radius_y));
}

References flutter::DlDilateImageFilter::Make(), and flutter::SafeNarrow().

◆ initErode()

void flutter::ImageFilter::initErode	(	double	radius_x,
		double	radius_y
	)

Definition at line 97 of file image_filter.cc.

                                                            {
  is_dynamic_tile_mode_ = false;
  filter_ =
      DlErodeImageFilter::Make(SafeNarrow(radius_x), SafeNarrow(radius_y));
}

References flutter::DlErodeImageFilter::Make(), and flutter::SafeNarrow().

◆ initMatrix()

void flutter::ImageFilter::initMatrix	(	const tonic::Float64List &	matrix4,
		int	filter_quality_index
	)

Definition at line 103 of file image_filter.cc.

                                                     {
  is_dynamic_tile_mode_ = false;
  auto sampling = ImageFilter::SamplingFromIndex(filterQualityIndex);
  filter_ = DlMatrixImageFilter::Make(ToDlMatrix(matrix4), sampling);
}

References flutter::DlMatrixImageFilter::Make(), SamplingFromIndex(), and flutter::ToDlMatrix().

◆ initShader()

void flutter::ImageFilter::initShader ( ReusableFragmentShader * shader )

Definition at line 123 of file image_filter.cc.

                                                           {
  FML_DCHECK(shader);
  filter_ = shader->as_image_filter();
}

References flutter::ReusableFragmentShader::as_image_filter(), and FML_DCHECK.

◆ RegisterNatives()

static void flutter::ImageFilter::RegisterNatives ( tonic::DartLibraryNatives * natives )

static

◆ SamplingFromIndex()

DlImageSampling flutter::ImageFilter::SamplingFromIndex ( int filterQualityIndex )

static

Definition at line 36 of file image_filter.cc.

                                                                     {
  if (filterQualityIndex < 0) {
    return kFilterQualities.front();
  } else if (static_cast<size_t>(filterQualityIndex) >=
             kFilterQualities.size()) {
    return kFilterQualities.back();
  } else {
    return kFilterQualities[filterQualityIndex];
  }
}

References flutter::kFilterQualities.

Referenced by flutter::SceneBuilder::addTexture(), initMatrix(), flutter::ImageShader::initWithImage(), and flutter::SceneBuilder::pushShaderMask().

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

lib/ui/painting/image_filter.h
lib/ui/painting/image_filter.cc

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~ImageFilter()

Member Function Documentation

◆ Create()

◆ equals()

◆ filter()

◆ FilterModeFromIndex()

◆ initBlur()

◆ initColorFilter()

◆ initComposeFilter()

◆ initDilate()

◆ initErode()

◆ initMatrix()

◆ initShader()

◆ RegisterNatives()

◆ SamplingFromIndex()