flutter::SnapshotDelegate Class Reference

#include <snapshot_delegate.h>

Inheritance diagram for flutter::SnapshotDelegate:

Classes
struct	GpuImageResult
	A data structure used by the Skia implementation of deferred GPU based images. More...

Public Member Functions
virtual std::unique_ptr< GpuImageResult >	MakeSkiaGpuImage (sk_sp< DisplayList > display_list, const SkImageInfo &image_info)=0
	Attempts to create a GrBackendTexture for the specified DisplayList. May result in a raster bitmap if no GPU context is available.
virtual std::shared_ptr< TextureRegistry >	GetTextureRegistry ()=0
	Gets the registry of external textures currently in use by the rasterizer. These textures may be updated at a cadence different from that of the Flutter application. When an external texture is referenced in the Flutter layer tree, that texture is composited within the Flutter layer tree.
virtual GrDirectContext *	GetGrContext ()=0
virtual sk_sp< DlImage >	MakeRasterSnapshot (sk_sp< DisplayList > display_list, SkISize picture_size)=0
virtual sk_sp< SkImage >	ConvertToRasterImage (sk_sp< SkImage > image)=0
virtual void	CacheRuntimeStage (const std::shared_ptr< impeller::RuntimeStage > &runtime_stage)=0

Detailed Description

Definition at line 21 of file snapshot_delegate.h.

Member Function Documentation

CacheRuntimeStage()

virtual void flutter::SnapshotDelegate::CacheRuntimeStage ( const std::shared_ptr< impeller::RuntimeStage > &  runtime_stage )

pure virtual

Load and compile and initial PSO for the provided [runtime_stage].

Impeller only.

Implemented in flutter::Rasterizer.

ConvertToRasterImage()

virtual sk_sp< SkImage > flutter::SnapshotDelegate::ConvertToRasterImage ( sk_sp< SkImage >  image )

pure virtual

Implemented in flutter::Rasterizer.

GetGrContext()

virtual GrDirectContext * flutter::SnapshotDelegate::GetGrContext ( )

pure virtual

Implemented in flutter::Rasterizer.

GetTextureRegistry()

virtual std::shared_ptr< TextureRegistry > flutter::SnapshotDelegate::GetTextureRegistry ( )

pure virtual

Gets the registry of external textures currently in use by the rasterizer. These textures may be updated at a cadence different from that of the Flutter application. When an external texture is referenced in the Flutter layer tree, that texture is composited within the Flutter layer tree.

Returns

A pointer to the external texture registry.

Implemented in flutter::Rasterizer.

MakeRasterSnapshot()

virtual sk_sp< DlImage > flutter::SnapshotDelegate::MakeRasterSnapshot ( sk_sp< DisplayList >  display_list, SkISize  picture_size  )

pure virtual

Implemented in flutter::Rasterizer.

MakeSkiaGpuImage()

virtual std::unique_ptr< GpuImageResult > flutter::SnapshotDelegate::MakeSkiaGpuImage ( sk_sp< DisplayList >  display_list, const SkImageInfo &  image_info  )

pure virtual

Attempts to create a GrBackendTexture for the specified DisplayList. May result in a raster bitmap if no GPU context is available.

Implemented in flutter::Rasterizer.

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

• lib/ui/snapshot_delegate.h