flutter::SnapshotControllerSkia Class Reference

#include <snapshot_controller_skia.h>

Inheritance diagram for flutter::SnapshotControllerSkia:

Public Member Functions
	SnapshotControllerSkia (const SnapshotController::Delegate &delegate)
void	MakeRasterSnapshot (sk_sp< DisplayList > display_list, DlISize picture_size, std::function< void(const sk_sp< DlImage > &)> callback, SnapshotPixelFormat pixel_format) override
sk_sp< DlImage >	MakeRasterSnapshotSync (sk_sp< DisplayList > display_list, DlISize size, SnapshotPixelFormat pixel_format) override
sk_sp< DlImage >	MakeTextureImage (sk_sp< SkImage > image, SnapshotPixelFormat pixel_format) override
virtual sk_sp< SkImage >	ConvertToRasterImage (sk_sp< SkImage > image) override
void	CacheRuntimeStage (const std::shared_ptr< impeller::RuntimeStage > &runtime_stage) override
bool	MakeRenderContextCurrent () override
Public Member Functions inherited from flutter::SnapshotController
virtual	~SnapshotController ()=default

Additional Inherited Members
Static Public Member Functions inherited from flutter::SnapshotController
static std::unique_ptr< SnapshotController >	Make (const Delegate &delegate, const Settings &settings)
Protected Member Functions inherited from flutter::SnapshotController
	SnapshotController (const Delegate &delegate)
const Delegate &	GetDelegate ()

Detailed Description

Definition at line 15 of file snapshot_controller_skia.h.

Constructor & Destructor Documentation

SnapshotControllerSkia()

flutter::SnapshotControllerSkia::SnapshotControllerSkia ( const SnapshotController::Delegate &  delegate )

inlineexplicit

Definition at line 17 of file snapshot_controller_skia.h.

      : SnapshotController(delegate) {}

Member Function Documentation

CacheRuntimeStage()

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

overridevirtual

Implements flutter::SnapshotController.

Definition at line 180 of file snapshot_controller_skia.cc.

                                                              {}

ConvertToRasterImage()

sk_sp< SkImage > flutter::SnapshotControllerSkia::ConvertToRasterImage ( sk_sp< SkImage >  image )

overridevirtual

Implements flutter::SnapshotController.

Definition at line 157 of file snapshot_controller_skia.cc.

                          {
  // If the rasterizer does not have a surface with a GrContext, then it will
  // be unable to render a cross-context SkImage.  The caller will need to
  // create the raster image on the IO thread.
  if (GetDelegate().GetSurface() == nullptr ||
      GetDelegate().GetSurface()->GetContext() == nullptr) {
    return nullptr;
  }
 
  if (image == nullptr) {
    return nullptr;
  }
 
  DlISize image_size = ToDlISize(image->dimensions());
 
  auto result = DoMakeRasterSnapshot(
      image_size, [image = std::move(image)](SkCanvas* canvas) {
        canvas->drawImage(image, 0, 0);
      });
  return result->skia_image();
}

References flutter::SnapshotController::GetDelegate(), image, and flutter::ToDlISize().

MakeRasterSnapshot()

void flutter::SnapshotControllerSkia::MakeRasterSnapshot ( sk_sp< DisplayList >  display_list, DlISize  picture_size, std::function< void(const sk_sp< DlImage > &)>  callback, SnapshotPixelFormat  pixel_format  )

overridevirtual

Implements flutter::SnapshotController.

Definition at line 54 of file snapshot_controller_skia.cc.

                                      {
  callback(MakeRasterSnapshotSync(display_list, picture_size, pixel_format));
}

References callback, and MakeRasterSnapshotSync().

MakeRasterSnapshotSync()

sk_sp< DlImage > flutter::SnapshotControllerSkia::MakeRasterSnapshotSync ( sk_sp< DisplayList >  display_list, DlISize  size, SnapshotPixelFormat  pixel_format  )

overridevirtual

Implements flutter::SnapshotController.

Definition at line 142 of file snapshot_controller_skia.cc.

                                      {
  return DoMakeRasterSnapshot(size, [display_list](SkCanvas* canvas) {
    DlSkCanvasAdapter(canvas).DrawDisplayList(display_list);
  });
}

References flutter::DlSkCanvasAdapter::DrawDisplayList(), and flutter::size.

Referenced by MakeRasterSnapshot().

MakeRenderContextCurrent()

bool flutter::SnapshotControllerSkia::MakeRenderContextCurrent ( )

overridevirtual

Implements flutter::SnapshotController.

Definition at line 183 of file snapshot_controller_skia.cc.

                                                      {
  FML_UNREACHABLE();
  return false;
}

References FML_UNREACHABLE.

MakeTextureImage()

sk_sp< DlImage > flutter::SnapshotControllerSkia::MakeTextureImage ( sk_sp< SkImage >  image, SnapshotPixelFormat  pixel_format  )

overridevirtual

Creates a texture-backed DlImage from the provided SkImage.

This is primarily used by decodeImageFromPixelsSync to upload pixels to the GPU synchronously.

Implements flutter::SnapshotController.

Definition at line 151 of file snapshot_controller_skia.cc.

                                      {
  return DlImage::Make(image);
}

References image, and flutter::DlImage::Make().

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

• shell/common/snapshot_controller_skia.h
• shell/common/snapshot_controller_skia.cc