flutter::EmbedderRenderTargetSkia Class Reference

#include <embedder_render_target_skia.h>

Inheritance diagram for flutter::EmbedderRenderTargetSkia:

Public Member Functions
	EmbedderRenderTargetSkia (FlutterBackingStore backing_store, sk_sp< SkSurface > render_surface, fml::closure on_release, MakeOrClearCurrentCallback on_make_current, MakeOrClearCurrentCallback on_clear_current)
	~EmbedderRenderTargetSkia () override
sk_sp< SkSurface >	GetSkiaSurface () const override
	A render surface the rasterizer can use to draw into the backing store of this render target.
impeller::RenderTarget *	GetImpellerRenderTarget () const override
	An impeller render target the rasterizer can use to draw into the backing store.
std::shared_ptr< impeller::AiksContext >	GetAiksContext () const override
	Returns the AiksContext that should be used for rendering, if this render target is backed by Impeller.
DlISize	GetRenderTargetSize () const override
	Returns the size of the render target.
SetCurrentResult	MaybeMakeCurrent () const override
	Make the render target current.
SetCurrentResult	MaybeClearCurrent () const override
	Clear the current render target.
Public Member Functions inherited from flutter::EmbedderRenderTarget
virtual	~EmbedderRenderTarget ()
	Destroys this instance of the render target and invokes the callback for the embedder to release its resource associated with the particular backing store.
const FlutterBackingStore *	GetBackingStore () const
	The embedder backing store descriptor. This is the descriptor that was given to the engine by the embedder. This descriptor may contain context the embedder can use to associate it resources with the compositor layers when they are given back to it in present callback. The engine does not use this in any way.

Additional Inherited Members
Public Types inherited from flutter::EmbedderRenderTarget
using	MakeOrClearCurrentCallback = std::function< SetCurrentResult()>
Protected Member Functions inherited from flutter::EmbedderRenderTarget
	EmbedderRenderTarget (FlutterBackingStore backing_store, fml::closure on_release)
	Creates a render target whose backing store is managed by the embedder. The way this render target is exposed to the engine is via an SkSurface and a callback that is invoked by this object in its destructor.

Detailed Description

Definition at line 12 of file embedder_render_target_skia.h.

Constructor & Destructor Documentation

EmbedderRenderTargetSkia()

flutter::EmbedderRenderTargetSkia::EmbedderRenderTargetSkia	(	FlutterBackingStore	backing_store,
		sk_sp< SkSurface >	render_surface,
		fml::closure	on_release,
		MakeOrClearCurrentCallback	on_make_current,
		MakeOrClearCurrentCallback	on_clear_current
	)

Definition at line 11 of file embedder_render_target_skia.cc.

    : EmbedderRenderTarget(backing_store, std::move(on_release)),
      render_surface_(std::move(render_surface)),
      on_make_current_(std::move(on_make_current)),
      on_clear_current_(std::move(on_clear_current)) {
  FML_DCHECK(render_surface_);
}

References FML_DCHECK.

~EmbedderRenderTargetSkia()

flutter::EmbedderRenderTargetSkia::~EmbedderRenderTargetSkia ( )

overridedefault

Member Function Documentation

GetAiksContext()

std::shared_ptr< impeller::AiksContext > flutter::EmbedderRenderTargetSkia::GetAiksContext ( ) const

overridevirtual

Returns the AiksContext that should be used for rendering, if this render target is backed by Impeller.

Returns

The Impeller Aiks context.

Implements flutter::EmbedderRenderTarget.

Definition at line 36 of file embedder_render_target_skia.cc.

                                               {
  return nullptr;
}

GetImpellerRenderTarget()

impeller::RenderTarget * flutter::EmbedderRenderTargetSkia::GetImpellerRenderTarget ( ) const

overridevirtual

An impeller render target the rasterizer can use to draw into the backing store.

Returns

The Impeller render target.

Implements flutter::EmbedderRenderTarget.

Definition at line 30 of file embedder_render_target_skia.cc.

          {
  return nullptr;
}

GetRenderTargetSize()

DlISize flutter::EmbedderRenderTargetSkia::GetRenderTargetSize ( ) const

overridevirtual

Returns the size of the render target.

Returns

The size of the render target.

Implements flutter::EmbedderRenderTarget.

Definition at line 40 of file embedder_render_target_skia.cc.

                                                            {
  return DlISize(render_surface_->width(), render_surface_->height());
}

GetSkiaSurface()

sk_sp< SkSurface > flutter::EmbedderRenderTargetSkia::GetSkiaSurface ( ) const

overridevirtual

A render surface the rasterizer can use to draw into the backing store of this render target.

Returns

The render surface.

Implements flutter::EmbedderRenderTarget.

Definition at line 26 of file embedder_render_target_skia.cc.

                                                                {
  return render_surface_;
}

MaybeClearCurrent()

EmbedderRenderTarget::SetCurrentResult flutter::EmbedderRenderTargetSkia::MaybeClearCurrent ( ) const

overridevirtual

Clear the current render target.

See also

MaybeMakeCurrent

Returns

The result of the operation.

Reimplemented from flutter::EmbedderRenderTarget.

Definition at line 54 of file embedder_render_target_skia.cc.

                                                  {
  if (on_clear_current_ != nullptr) {
    return on_clear_current_();
  }
 
  return {true, false};
}

MaybeMakeCurrent()

EmbedderRenderTarget::SetCurrentResult flutter::EmbedderRenderTargetSkia::MaybeMakeCurrent ( ) const

overridevirtual

Make the render target current.

        Sometimes render targets are actually (for example)
        EGL surfaces instead of framebuffers or textures.
        In that case, we can't fully wrap them as SkSurfaces, instead,
        the embedder will provide a callback that should be called
        when the target surface should be made current.

Returns

The result of the operation.

Reimplemented from flutter::EmbedderRenderTarget.

Definition at line 45 of file embedder_render_target_skia.cc.

                                                 {
  if (on_make_current_ != nullptr) {
    return on_make_current_();
  }
 
  return {true, false};
}

---

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

• shell/platform/embedder/embedder_render_target_skia.h
• shell/platform/embedder/embedder_render_target_skia.cc