#include <pixel_deferred_image_gpu_impeller.h>

Inheritance diagram for flutter::PixelDeferredImageGPUImpeller:

Public Member Functions
	~PixelDeferredImageGPUImpeller () override

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.

DlISize	GetSize () const override

size_t	GetApproximateByteSize () const override

DlColorSpace	GetColorSpace () const override
	Gets the color space of the image.

std::optional< std::string >	get_error () 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.

virtual std::shared_ptr< Texture >	GetImpellerTexture (const std::shared_ptr< Context > &context) const =0

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

bool	Equals (const DlImage *other) const

bool	Equals (const DlImage &other) const

bool	Equals (const sk_sp< const DlImage > &other) const

Static Public Member Functions
static sk_sp< PixelDeferredImageGPUImpeller >	Make (sk_sp< SkImage > image, fml::TaskRunnerAffineWeakPtr< SnapshotDelegate > snapshot_delegate, fml::RefPtr< fml::TaskRunner > raster_task_runner)

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)

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...

Protected Member Functions inherited from flutter::DlImage
	DlImage ()

Detailed Description

A deferred image that is created from pixels.

See also: DisplayListDeferredImageGPUImpeller for another example of a deferred image.; dart:ui decodeImageFromPixelsSync for the user of this class.

Definition at line 27 of file pixel_deferred_image_gpu_impeller.h.

Constructor & Destructor Documentation

◆ ~PixelDeferredImageGPUImpeller()

flutter::PixelDeferredImageGPUImpeller::~PixelDeferredImageGPUImpeller ( )

overridedefault

References texture.

Member Function Documentation

◆ get_error()

std::optional< std::string > flutter::PixelDeferredImageGPUImpeller::get_error ( ) const

overridevirtual

Returns: An error, if any, that occurred when trying to create the image.

Reimplemented from flutter::DlImage.

Definition at line 80 of file pixel_deferred_image_gpu_impeller.cc.

                                                                      {
  return wrapper_ ? wrapper_->get_error() : std::nullopt;
}

◆ GetApproximateByteSize()

size_t flutter::PixelDeferredImageGPUImpeller::GetApproximateByteSize ( ) const

overridevirtual

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 49 of file pixel_deferred_image_gpu_impeller.cc.

                                                                   {
  auto size = sizeof(PixelDeferredImageGPUImpeller);
  if (wrapper_) {
    if (wrapper_->texture()) {
      size += wrapper_->texture()
                  ->GetTextureDescriptor()
                  .GetByteSizeOfBaseMipLevel();
    } else {
      size += wrapper_->size().Area() * 4;
    }
  }
  return size;
}

References flutter::size.

◆ GetColorSpace()

flutter::DlColorSpace flutter::PixelDeferredImageGPUImpeller::GetColorSpace ( ) const

overridevirtual

Gets the color space of the image.

Returns: The color space.

Implements flutter::DlImage.

Definition at line 63 of file pixel_deferred_image_gpu_impeller.cc.

                                                                       {
  if (!wrapper_) {
    return flutter::DlColorSpace::kSRGB;
  }
  std::shared_ptr<impeller::Texture> texture = wrapper_->texture();
  if (!texture) {
    return flutter::DlColorSpace::kSRGB;
  }
  switch (texture->GetTextureDescriptor().format) {
    case impeller::PixelFormat::kB10G10R10XR:
    case impeller::PixelFormat::kR16G16B16A16Float:
      return flutter::DlColorSpace::kExtendedSRGB;
    default:
      return flutter::DlColorSpace::kSRGB;
  }
}

References impeller::kB10G10R10XR, flutter::kExtendedSRGB, impeller::kR16G16B16A16Float, flutter::kSRGB, and texture.

◆ GetImpellerTexture()

std::shared_ptr< impeller::Texture > flutter::PixelDeferredImageGPUImpeller::GetImpellerTexture ( const std::shared_ptr< impeller::Context > & context ) const

override

Definition at line 29 of file pixel_deferred_image_gpu_impeller.cc.

                                                         {
  if (!wrapper_) {
    return nullptr;
  }
  return wrapper_->texture();
}

◆ GetSize()

DlISize flutter::PixelDeferredImageGPUImpeller::GetSize ( ) const

overridevirtual

Returns: The dimensions of the pixel grid.

Implements flutter::DlImage.

Definition at line 45 of file pixel_deferred_image_gpu_impeller.cc.

                                                     {
  return wrapper_ ? wrapper_->size() : DlISize();
}

◆ isOpaque()

bool flutter::PixelDeferredImageGPUImpeller::isOpaque ( ) const

overridevirtual

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 37 of file pixel_deferred_image_gpu_impeller.cc.

                                                   {
  return false;
}

◆ isUIThreadSafe()

bool flutter::PixelDeferredImageGPUImpeller::isUIThreadSafe ( ) const

overridevirtual

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 pixel_deferred_image_gpu_impeller.cc.

                                                         {
  return true;
}

◆ Make()

sk_sp< PixelDeferredImageGPUImpeller > flutter::PixelDeferredImageGPUImpeller::Make	(	sk_sp< SkImage >	image,
		fml::TaskRunnerAffineWeakPtr< SnapshotDelegate >	snapshot_delegate,
		fml::RefPtr< fml::TaskRunner >	raster_task_runner
	)

static

Definition at line 12 of file pixel_deferred_image_gpu_impeller.cc.

                                                 {
  return sk_sp<PixelDeferredImageGPUImpeller>(new PixelDeferredImageGPUImpeller(
      PixelDeferredImageGPUImpeller::ImageWrapper::Make(
          std::move(image), std::move(snapshot_delegate),
          std::move(raster_task_runner))));
}

References image.

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

lib/ui/painting/pixel_deferred_image_gpu_impeller.h
lib/ui/painting/pixel_deferred_image_gpu_impeller.cc

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~PixelDeferredImageGPUImpeller()

Member Function Documentation

◆ get_error()

◆ GetApproximateByteSize()

◆ GetColorSpace()

◆ GetImpellerTexture()

◆ GetSize()

◆ isOpaque()

◆ isUIThreadSafe()

◆ Make()