Skwasm::DlWimpImageBase Class Reference

Inheritance diagram for Skwasm::DlWimpImageBase:

Public Member Functions
	DlWimpImageBase (int width, int height)
std::shared_ptr< impeller::Texture >	GetImpellerTexture (const std::shared_ptr< impeller::Context > &context) const override
bool	isOpaque () const override
	If the pixel format of this image ignores alpha, this returns true. This method might conservatively return false when it cannot guarnatee an opaque image, for example when the pixel format of the image supports alpha but the image is made up of entirely opaque pixels.
bool	isUIThreadSafe () const override
	If the underlying platform image held by this object has no threading requirements for the release of that image (or if arrangements have already been made to forward that image to the correct thread upon deletion), this method returns true.
flutter::DlColorSpace	GetColorSpace () const override
	Gets the color space of the image.
virtual	~DlWimpImageBase ()
flutter::DlISize	GetSize () const override
size_t	GetApproximateByteSize () const override
Public Member Functions inherited from impeller::DlImageImpeller
Type	GetImageType () const override
	Returns the backend type of this image.
const DlImageImpeller *	asImpellerImage () const override
	Safe downcast to DlImageImpeller.
bool	isTextureBacked () const override
	Returns true if the image is backed by a GPU texture.
std::shared_ptr< Texture >	GetCachedTexture (const ContentContext &renderer) const
Public Member Functions inherited from flutter::DlImage
virtual	~DlImage ()
virtual const DlImageSkia *	asSkiaImage () const
	Safe downcast to DlImageSkia.
int	width () const
int	height () const
DlIRect	GetBounds () const
virtual OwningContext	owning_context () const
virtual std::optional< std::string >	get_error () const
bool	Equals (const DlImage *other) const
bool	Equals (const DlImage &other) const
bool	Equals (const sk_sp< const DlImage > &other) const

Protected Attributes
int	width_
int	height_

Additional Inherited Members
Public Types inherited from flutter::DlImage
enum class	OwningContext {   kRaster ,   kIO }
enum class	Type {   kSkia ,   kImpeller }
	The backend type of this image. More...
Static Public Member Functions inherited from impeller::DlImageImpeller
static sk_sp< DlImageImpeller >	Make (std::shared_ptr< Texture > texture, OwningContext owning_context=OwningContext::kIO)
static sk_sp< DlImageImpeller >	MakeFromYUVTextures (AiksContext *aiks_context, std::shared_ptr< Texture > y_texture, std::shared_ptr< Texture > uv_texture, YUVColorSpace yuv_color_space)
Protected Member Functions inherited from flutter::DlImage
	DlImage ()

Detailed Description

Definition at line 30 of file images_impeller.cc.

Constructor & Destructor Documentation

DlWimpImageBase()

Skwasm::DlWimpImageBase::DlWimpImageBase ( int  width, int  height  )

inline

Definition at line 32 of file images_impeller.cc.

: width_(width), height_(height) {}

~DlWimpImageBase()

Skwasm::DlWimpImageBase::~DlWimpImageBase ( )

virtual

Definition at line 61 of file images_impeller.cc.

                                  {
  if (emscripten_wasm_worker_self_id() == GetRasterThread()) {
    skwasm_disposeDlImageOnWorker(this);
  } else {
    skwasm_dispatchDisposeDlImage(GetRasterThread(), this);
  }
}

References Skwasm::GetRasterThread(), skwasm_dispatchDisposeDlImage(), and skwasm_disposeDlImageOnWorker().

Member Function Documentation

GetApproximateByteSize()

size_t Skwasm::DlWimpImageBase::GetApproximateByteSize ( ) const

inlineoverridevirtual

Returns

The approximate byte size of the allocation of this image. This takes into account details such as mip-mapping. The allocation is usually resident in device memory.

Implements flutter::DlImage.

Definition at line 52 of file images_impeller.cc.

                                                 {
    return width_ * height_ * 4;
  }

References height_, and width_.

GetColorSpace()

flutter::DlColorSpace Skwasm::DlWimpImageBase::GetColorSpace ( ) const

inlineoverridevirtual

Gets the color space of the image.

Returns

The color space.

Implements flutter::DlImage.

Definition at line 42 of file images_impeller.cc.

                                                     {
    return flutter::DlColorSpace::kSRGB;
  }

References flutter::kSRGB.

GetImpellerTexture()

std::shared_ptr< impeller::Texture > Skwasm::DlWimpImageBase::GetImpellerTexture ( const std::shared_ptr< impeller::Context > &  context ) const

inlineoverridevirtual

Implements impeller::DlImageImpeller.

Reimplemented in Skwasm::DlWimpImageFromTexture, Skwasm::DlWimpImageFromPixels, and Skwasm::DlWimpImageFromPicture.

Definition at line 35 of file images_impeller.cc.

                                                                    {
    return nullptr;
  }

GetSize()

flutter::DlISize Skwasm::DlWimpImageBase::GetSize ( ) const

inlineoverridevirtual

Returns

The dimensions of the pixel grid.

Implements flutter::DlImage.

Definition at line 48 of file images_impeller.cc.

                                          {
    return flutter::DlISize::MakeWH(width_, height_);
  }

References height_, impeller::TSize< T >::MakeWH(), and width_.

isOpaque()

bool Skwasm::DlWimpImageBase::isOpaque ( ) const

inlineoverridevirtual

If the pixel format of this image ignores alpha, this returns true. This method might conservatively return false when it cannot guarnatee an opaque image, for example when the pixel format of the image supports alpha but the image is made up of entirely opaque pixels.

Returns

True if the pixel format of this image ignores alpha.

Implements flutter::DlImage.

Definition at line 40 of file images_impeller.cc.

{ return false; }

isUIThreadSafe()

bool Skwasm::DlWimpImageBase::isUIThreadSafe ( ) const

inlineoverridevirtual

If the underlying platform image held by this object has no threading requirements for the release of that image (or if arrangements have already been made to forward that image to the correct thread upon deletion), this method returns true.

Returns

True if the underlying image is held in a thread-safe manner.

Implements flutter::DlImage.

Definition at line 41 of file images_impeller.cc.

{ return true; }

Member Data Documentation

height_

int Skwasm::DlWimpImageBase::height_

protected

Definition at line 58 of file images_impeller.cc.

Referenced by GetApproximateByteSize(), Skwasm::DlWimpImageFromTexture::GetImpellerTexture(), Skwasm::DlWimpImageFromPixels::GetImpellerTexture(), Skwasm::DlWimpImageFromPicture::GetImpellerTexture(), and GetSize().

width_

int Skwasm::DlWimpImageBase::width_

protected

Definition at line 57 of file images_impeller.cc.

Referenced by GetApproximateByteSize(), Skwasm::DlWimpImageFromTexture::GetImpellerTexture(), Skwasm::DlWimpImageFromPixels::GetImpellerTexture(), Skwasm::DlWimpImageFromPicture::GetImpellerTexture(), and GetSize().

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

• skwasm/images_impeller.cc