flutter::DlCanvas Class Reference

Developer-facing API for rendering anything within the engine. More...

#include <dl_canvas.h>

Inheritance diagram for flutter::DlCanvas:

Public Member Functions
virtual	~DlCanvas ()=default
virtual DlISize	GetBaseLayerDimensions () const =0
virtual SkImageInfo	GetImageInfo () const =0
virtual void	Save ()=0
virtual void	SaveLayer (const std::optional< DlRect > &bounds, const DlPaint *paint=nullptr, const DlImageFilter *backdrop=nullptr, std::optional< int64_t > backdrop_id=std::nullopt)=0
virtual void	Restore ()=0
virtual int	GetSaveCount () const =0
virtual void	RestoreToCount (int restore_count)=0
virtual void	Translate (DlScalar tx, DlScalar ty)=0
virtual void	Scale (DlScalar sx, DlScalar sy)=0
virtual void	Rotate (DlScalar degrees)=0
virtual void	Skew (DlScalar sx, DlScalar sy)=0
virtual void	Transform2DAffine (DlScalar mxx, DlScalar mxy, DlScalar mxt, DlScalar myx, DlScalar myy, DlScalar myt)=0
virtual void	TransformFullPerspective (DlScalar mxx, DlScalar mxy, DlScalar mxz, DlScalar mxt, DlScalar myx, DlScalar myy, DlScalar myz, DlScalar myt, DlScalar mzx, DlScalar mzy, DlScalar mzz, DlScalar mzt, DlScalar mwx, DlScalar mwy, DlScalar mwz, DlScalar mwt)=0
virtual void	TransformReset ()=0
virtual void	Transform (const DlMatrix &matrix)=0
virtual void	SetTransform (const DlMatrix &matrix)=0
virtual DlMatrix	GetMatrix () const =0
virtual void	ClipRect (const DlRect &rect, DlClipOp clip_op=DlClipOp::kIntersect, bool is_aa=false)=0
virtual void	ClipOval (const DlRect &bounds, DlClipOp clip_op=DlClipOp::kIntersect, bool is_aa=false)=0
virtual void	ClipRoundRect (const DlRoundRect &rrect, DlClipOp clip_op=DlClipOp::kIntersect, bool is_aa=false)=0
virtual void	ClipRoundSuperellipse (const DlRoundSuperellipse &rse, DlClipOp clip_op=DlClipOp::kIntersect, bool is_aa=false)=0
virtual void	ClipPath (const DlPath &path, DlClipOp clip_op=DlClipOp::kIntersect, bool is_aa=false)=0
virtual DlRect	GetDestinationClipCoverage () const =0
virtual DlRect	GetLocalClipCoverage () const =0
virtual bool	QuickReject (const DlRect &bounds) const =0
virtual void	DrawPaint (const DlPaint &paint)=0
virtual void	DrawColor (DlColor color, DlBlendMode mode=DlBlendMode::kSrcOver)=0
void	Clear (DlColor color)
virtual void	DrawLine (const DlPoint &p0, const DlPoint &p1, const DlPaint &paint)=0
virtual void	DrawDashedLine (const DlPoint &p0, const DlPoint &p1, DlScalar on_length, DlScalar off_length, const DlPaint &paint)=0
virtual void	DrawRect (const DlRect &rect, const DlPaint &paint)=0
virtual void	DrawOval (const DlRect &bounds, const DlPaint &paint)=0
virtual void	DrawCircle (const DlPoint &center, DlScalar radius, const DlPaint &paint)=0
virtual void	DrawRoundRect (const DlRoundRect &rrect, const DlPaint &paint)=0
virtual void	DrawDiffRoundRect (const DlRoundRect &outer, const DlRoundRect &inner, const DlPaint &paint)=0
virtual void	DrawRoundSuperellipse (const DlRoundSuperellipse &rse, const DlPaint &paint)=0
virtual void	DrawPath (const DlPath &path, const DlPaint &paint)=0
virtual void	DrawArc (const DlRect &bounds, DlScalar start, DlScalar sweep, bool useCenter, const DlPaint &paint)=0
virtual void	DrawPoints (DlPointMode mode, uint32_t count, const DlPoint pts[], const DlPaint &paint)=0
virtual void	DrawVertices (const std::shared_ptr< DlVertices > &vertices, DlBlendMode mode, const DlPaint &paint)=0
virtual void	DrawImage (const sk_sp< DlImage > &image, const DlPoint &point, DlImageSampling sampling, const DlPaint *paint=nullptr)=0
virtual void	DrawImageRect (const sk_sp< DlImage > &image, const DlRect &src, const DlRect &dst, DlImageSampling sampling, const DlPaint *paint=nullptr, DlSrcRectConstraint constraint=DlSrcRectConstraint::kFast)=0
virtual void	DrawImageRect (const sk_sp< DlImage > &image, const DlIRect &src, const DlRect &dst, DlImageSampling sampling, const DlPaint *paint=nullptr, DlSrcRectConstraint constraint=DlSrcRectConstraint::kFast)
void	DrawImageRect (const sk_sp< DlImage > &image, const DlRect &dst, DlImageSampling sampling, const DlPaint *paint=nullptr, DlSrcRectConstraint constraint=DlSrcRectConstraint::kFast)
virtual void	DrawImageNine (const sk_sp< DlImage > &image, const DlIRect &center, const DlRect &dst, DlFilterMode filter, const DlPaint *paint=nullptr)=0
virtual void	DrawAtlas (const sk_sp< DlImage > &atlas, const DlRSTransform xform[], const DlRect tex[], const DlColor colors[], int count, DlBlendMode mode, DlImageSampling sampling, const DlRect *cullRect, const DlPaint *paint=nullptr)=0
virtual void	DrawDisplayList (const sk_sp< DisplayList > display_list, DlScalar opacity=SK_Scalar1)=0
virtual void	DrawText (const std::shared_ptr< DlText > &text, DlScalar x, DlScalar y, const DlPaint &paint)=0
virtual void	DrawShadow (const DlPath &path, const DlColor color, const DlScalar elevation, bool transparent_occluder, DlScalar dpr)=0
	Draws the shadow of the given |path| rendered in the provided |color| (which is only consulted for its opacity) as would be produced by a directional light source uniformly shining in the device space direction {0, -1, 1} against a backdrop which is |elevation * dpr| device coordinates below the |path| in the Z direction.
virtual void	Flush ()=0

Static Public Member Functions
static DlRect	ComputeShadowBounds (const DlPath &path, float elevation, DlScalar dpr, const DlMatrix &ctm)
	Compute the local coverage for a |DrawShadow| operation using the given parameters (excluding the color and the transparent occluder parameters which do not affect the bounds).

Static Public Attributes
static constexpr DlScalar	kShadowLightHeight = 600
static constexpr DlScalar	kShadowLightRadius = 800

Detailed Description

Developer-facing API for rendering anything within the engine.

|DlCanvas| should be used to render anything in the framework classes (i.e. lib/ui), flow and flow layers, embedders, shell, and elsewhere.

The only state carried by implementations of this interface are the clip and transform which are saved and restored by the |save|, |saveLayer|, and |restore| calls.

Note

The interface resembles closely the familiar |SkCanvas| interface used throughout the engine.

Definition at line 32 of file dl_canvas.h.

Constructor & Destructor Documentation

~DlCanvas()

virtual flutter::DlCanvas::~DlCanvas ( )

virtualdefault

Member Function Documentation

Clear()

void flutter::DlCanvas::Clear ( DlColor  color )

inline

Definition at line 104 of file dl_canvas.h.

{ DrawColor(color, DlBlendMode::kSrc); }

References DrawColor().

Referenced by flutter::testing::RenderEnvironment::getImpellerResult(), flutter::RasterCache::Rasterize(), flutter::EmbedderExternalView::Render(), flutter::RenderFrameForScreenshot(), flutter::testing::TEST(), flutter::testing::TEST(), and flutter::testing::TEST_F().

ClipOval()

virtual void flutter::DlCanvas::ClipOval ( const DlRect &  bounds, DlClipOp  clip_op = DlClipOp::kIntersect, bool  is_aa = false  )

pure virtual

Implemented in flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

ClipPath()

virtual void flutter::DlCanvas::ClipPath ( const DlPath &  path, DlClipOp  clip_op = DlClipOp::kIntersect, bool  is_aa = false  )

pure virtual

Implemented in flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

Referenced by flutter::DlCanvasDelegate::clipPath(), and flutter::testing::TEST_P().

ClipRect()

virtual void flutter::DlCanvas::ClipRect ( const DlRect &  rect, DlClipOp  clip_op = DlClipOp::kIntersect, bool  is_aa = false  )

pure virtual

Implemented in flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

Referenced by flutter::DlCanvasDelegate::clipRect(), flutter::DrawCheckerboard(), flutter::SliceViews(), flutter::AndroidExternalViewEmbedder2::SubmitFlutterView(), and flutter::testing::TEST_P().

ClipRoundRect()

virtual void flutter::DlCanvas::ClipRoundRect ( const DlRoundRect &  rrect, DlClipOp  clip_op = DlClipOp::kIntersect, bool  is_aa = false  )

pure virtual

Implemented in flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

Referenced by flutter::DlCanvasDelegate::clipRRect(), and flutter::testing::TEST_P().

ClipRoundSuperellipse()

virtual void flutter::DlCanvas::ClipRoundSuperellipse ( const DlRoundSuperellipse &  rse, DlClipOp  clip_op = DlClipOp::kIntersect, bool  is_aa = false  )

pure virtual

Implemented in flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

Referenced by flutter::DlCanvasDelegate::clipRSuperellipse().

ComputeShadowBounds()

DlRect flutter::DlCanvas::ComputeShadowBounds ( const DlPath &  path, float  elevation, DlScalar  dpr, const DlMatrix &  ctm  )

static

Compute the local coverage for a |DrawShadow| operation using the given parameters (excluding the color and the transparent occluder parameters which do not affect the bounds).

Since the elevation is expressed in device coordinates relative to the provided |dpr| value, the |ctm| of the final rendering coordinate system that will be applied to the path must be provided so the two sets of coordinates (path and light source) can be correlated.

See also

|DrawShadow|

Definition at line 125 of file dl_canvas.cc.

                                                          {
  return GetLocalBounds(
      path.GetBounds(), ctm,
      {
          .light_position = DlVector3(0.0f, -1.0f, 1.0f),
          .light_radius = kShadowLightRadius / kShadowLightHeight,
          .occluder_z = dpr * elevation,
      });
}

References flutter::path.

Referenced by flutter::DisplayListBuilder::DrawShadow(), flutter::testing::TEST(), flutter::testing::TEST(), and flutter::testing::TEST().

DrawArc()

virtual void flutter::DlCanvas::DrawArc ( const DlRect &  bounds, DlScalar  start, DlScalar  sweep, bool  useCenter, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawAtlas()

virtual void flutter::DlCanvas::DrawAtlas ( const sk_sp< DlImage > &  atlas, const DlRSTransform  xform[], const DlRect  tex[], const DlColor  colors[], int  count, DlBlendMode  mode, DlImageSampling  sampling, const DlRect *  cullRect, const DlPaint *  paint = nullptr  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F().

DrawCircle()

virtual void flutter::DlCanvas::DrawCircle ( const DlPoint &  center, DlScalar  radius, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

DrawColor()

virtual void flutter::DlCanvas::DrawColor ( DlColor  color, DlBlendMode  mode = DlBlendMode::kSrcOver  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by Clear(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

DrawDashedLine()

virtual void flutter::DlCanvas::DrawDashedLine ( const DlPoint &  p0, const DlPoint &  p1, DlScalar  on_length, DlScalar  off_length, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_P().

DrawDiffRoundRect()

virtual void flutter::DlCanvas::DrawDiffRoundRect ( const DlRoundRect &  outer, const DlRoundRect &  inner, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawDisplayList()

virtual void flutter::DlCanvas::DrawDisplayList ( const sk_sp< DisplayList >  display_list, DlScalar  opacity = SK_Scalar1  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DisplayListLayer::Paint(), flutter::DisplayListEmbedderViewSlice::render_into(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::DisplayListRasterCacheItem::TryToPrepareRasterCache().

DrawImage()

virtual void flutter::DlCanvas::DrawImage ( const sk_sp< DlImage > &  image, const DlPoint &  point, DlImageSampling  sampling, const DlPaint *  paint = nullptr  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::RasterCacheResult::draw(), flutter::SurfaceTextureExternalTexture::DrawFrame(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

DrawImageNine()

virtual void flutter::DlCanvas::DrawImageNine ( const sk_sp< DlImage > &  image, const DlIRect &  center, const DlRect &  dst, DlFilterMode  filter, const DlPaint *  paint = nullptr  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F().

DrawImageRect() [1/3]

virtual void flutter::DlCanvas::DrawImageRect ( const sk_sp< DlImage > &  image, const DlIRect &  src, const DlRect &  dst, DlImageSampling  sampling, const DlPaint *  paint = nullptr, DlSrcRectConstraint  constraint = DlSrcRectConstraint::kFast  )

inlinevirtual

Reimplemented in flutter::DisplayListBuilder.

Definition at line 149 of file dl_canvas.h.

                                                                 {
    auto float_src = DlRect::MakeLTRB(src.GetLeft(), src.GetTop(),
                                      src.GetRight(), src.GetBottom());
    DrawImageRect(image, float_src, dst, sampling, paint, constraint);
  }

References DrawImageRect(), impeller::TRect< T >::GetBottom(), impeller::TRect< T >::GetLeft(), impeller::TRect< T >::GetRight(), impeller::TRect< T >::GetTop(), image, and impeller::TRect< Scalar >::MakeLTRB().

DrawImageRect() [2/3]

void flutter::DlCanvas::DrawImageRect ( const sk_sp< DlImage > &  image, const DlRect &  dst, DlImageSampling  sampling, const DlPaint *  paint = nullptr, DlSrcRectConstraint  constraint = DlSrcRectConstraint::kFast  )

inline

Definition at line 160 of file dl_canvas.h.

                                                                 {
    DrawImageRect(image, image->GetBounds(), dst, sampling, paint, constraint);
  }

References DrawImageRect(), and image.

DrawImageRect() [3/3]

virtual void flutter::DlCanvas::DrawImageRect ( const sk_sp< DlImage > &  image, const DlRect &  src, const DlRect &  dst, DlImageSampling  sampling, const DlPaint *  paint = nullptr, DlSrcRectConstraint  constraint = DlSrcRectConstraint::kFast  )

pure virtual

Implemented in flutter::DisplayListBuilder, flutter::DlSkCanvasAdapter, and flutter::DisplayListBuilder.

Referenced by flutter::RasterCacheResult::draw(), DrawImageRect(), DrawImageRect(), flutter::testing::MockTexture::Paint(), and flutter::testing::TEST_F().

DrawLine()

virtual void flutter::DlCanvas::DrawLine ( const DlPoint &  p0, const DlPoint &  p1, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawOval()

virtual void flutter::DlCanvas::DrawOval ( const DlRect &  bounds, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawPaint()

virtual void flutter::DlCanvas::DrawPaint ( const DlPaint &  paint )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DrawCheckerboard(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

DrawPath()

virtual void flutter::DlCanvas::DrawPath ( const DlPath &  path, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::MockLayer::Paint(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawPoints()

virtual void flutter::DlCanvas::DrawPoints ( DlPointMode  mode, uint32_t  count, const DlPoint  pts[], const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawRect()

virtual void flutter::DlCanvas::DrawRect ( const DlRect &  rect, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::DrawCheckerboard(), flutter::DrawCheckerboard(), flutter::SurfaceTextureExternalTexture::DrawFrame(), flutter::ShaderMaskLayer::Paint(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), and flutter::testing::TEST_P().

DrawRoundRect()

virtual void flutter::DlCanvas::DrawRoundRect ( const DlRoundRect &  rrect, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::testing::TEST_F().

DrawRoundSuperellipse()

virtual void flutter::DlCanvas::DrawRoundSuperellipse ( const DlRoundSuperellipse &  rse, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

DrawShadow()

virtual void flutter::DlCanvas::DrawShadow ( const DlPath &  path, const DlColor  color, const DlScalar  elevation, bool  transparent_occluder, DlScalar  dpr  )

pure virtual

Draws the shadow of the given |path| rendered in the provided |color| (which is only consulted for its opacity) as would be produced by a directional light source uniformly shining in the device space direction {0, -1, 1} against a backdrop which is |elevation * dpr| device coordinates below the |path| in the Z direction.

Normally the renderer might consider omitting the rendering of any of the shadow pixels that fall under the |path| itself, as an optimization, unless the |transparent_occluder| flag is specified which would indicate that the optimization isn't appropriate.

Note that the |elevation| and |dpr| are unique in the API for being considered in pure device coordinates while the |path| is interpreted relative to the current local-to-device transform.

See also

|ComputeShadowBounds|

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F().

DrawText()

virtual void flutter::DlCanvas::DrawText ( const std::shared_ptr< DlText > &  text, DlScalar  x, DlScalar  y, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::RenderTextInCanvasSkia(), and flutter::testing::TEST_F().

DrawVertices()

virtual void flutter::DlCanvas::DrawVertices ( const std::shared_ptr< DlVertices > &  vertices, DlBlendMode  mode, const DlPaint &  paint  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_F(), and flutter::DlStopwatchVisualizer::Visualize().

Flush()

virtual void flutter::DlCanvas::Flush ( )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::RenderFrameForScreenshot(), and flutter::testing::TEST().

GetBaseLayerDimensions()

virtual DlISize flutter::DlCanvas::GetBaseLayerDimensions ( ) const

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::DrawCheckerboard(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), and flutter_runner::testing::TEST_F().

GetDestinationClipCoverage()

virtual DlRect flutter::DlCanvas::GetDestinationClipCoverage ( ) const

pure virtual

Conservative estimate of the bounds of all outstanding clip operations measured in the coordinate space within which this DisplayList will be rendered.

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::device_cull_rect(), and flutter::testing::DlJobRenderer::Render().

GetImageInfo()

virtual SkImageInfo flutter::DlCanvas::GetImageInfo ( ) const

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::GetColorSpace().

GetLocalClipCoverage()

virtual DlRect flutter::DlCanvas::GetLocalClipCoverage ( ) const

pure virtual

Conservative estimate of the bounds of all outstanding clip operations transformed into the local coordinate space in which currently recorded rendering operations are interpreted.

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::local_cull_rect(), and flutter::TEST().

GetMatrix()

virtual DlMatrix flutter::DlCanvas::GetMatrix ( ) const

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::RasterCache::Draw(), flutter::RasterCacheResult::draw(), flutter::DlCanvasDelegate::matrix(), flutter::testing::MockLayer::Paint(), flutter::testing::DlJobRenderer::Render(), and flutter::testing::TEST().

GetSaveCount()

virtual int flutter::DlCanvas::GetSaveCount ( ) const

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlAutoCanvasRestore::DlAutoCanvasRestore(), and flutter::AndroidExternalViewEmbedder2::SubmitFlutterView().

QuickReject()

virtual bool flutter::DlCanvas::QuickReject ( const DlRect &  bounds ) const

pure virtual

Return true iff the supplied bounds are easily shown to be outside of the current clip bounds. This method may conservatively return false if it cannot make the determination.

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::content_culled(), and flutter::TEST().

Restore()

virtual void flutter::DlCanvas::Restore ( )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DrawCheckerboard(), flutter::DlCanvasDelegate::restore(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

RestoreToCount()

virtual void flutter::DlCanvas::RestoreToCount ( int  restore_count )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::decommission(), flutter::DlAutoCanvasRestore::Restore(), and flutter::AndroidExternalViewEmbedder2::SubmitFlutterView().

Rotate()

virtual void flutter::DlCanvas::Rotate ( DlScalar  degrees )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::testing::TEST_P().

Save()

virtual void flutter::DlCanvas::Save ( )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlAutoCanvasRestore::DlAutoCanvasRestore(), flutter::DrawCheckerboard(), flutter::DlCanvasDelegate::save(), flutter::AndroidExternalViewEmbedder2::SubmitFlutterView(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

SaveLayer()

virtual void flutter::DlCanvas::SaveLayer ( const std::optional< DlRect > &  bounds, const DlPaint *  paint = nullptr, const DlImageFilter *  backdrop = nullptr, std::optional< int64_t >  backdrop_id = std::nullopt  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::saveLayer(), flutter::testing::TEST_F(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

Scale()

virtual void flutter::DlCanvas::Scale ( DlScalar  sx, DlScalar  sy  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::SurfaceTextureExternalTexture::DrawFrame(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::testing::TEST_P().

SetTransform()

virtual void flutter::DlCanvas::SetTransform ( const DlMatrix &  matrix )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::integralTransform().

Skew()

virtual void flutter::DlCanvas::Skew ( DlScalar  sx, DlScalar  sy  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Transform()

virtual void flutter::DlCanvas::Transform ( const DlMatrix &  matrix )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::DlCanvasDelegate::transform().

Transform2DAffine()

virtual void flutter::DlCanvas::Transform2DAffine ( DlScalar  mxx, DlScalar  mxy, DlScalar  mxt, DlScalar  myx, DlScalar  myy, DlScalar  myt  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

TransformFullPerspective()

virtual void flutter::DlCanvas::TransformFullPerspective ( DlScalar  mxx, DlScalar  mxy, DlScalar  mxz, DlScalar  mxt, DlScalar  myx, DlScalar  myy, DlScalar  myz, DlScalar  myt, DlScalar  mzx, DlScalar  mzy, DlScalar  mzz, DlScalar  mzt, DlScalar  mwx, DlScalar  mwy, DlScalar  mwz, DlScalar  mwt  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

TransformReset()

virtual void flutter::DlCanvas::TransformReset ( )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::RasterCacheResult::draw().

Translate()

virtual void flutter::DlCanvas::Translate ( DlScalar  tx, DlScalar  ty  )

pure virtual

Implemented in flutter::DisplayListBuilder, and flutter::DlSkCanvasAdapter.

Referenced by flutter::RasterCacheResult::draw(), flutter::SurfaceTextureExternalTexture::DrawFrame(), flutter::ShaderMaskLayer::Paint(), flutter::testing::TEST(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter_runner::testing::TEST_F(), flutter::testing::TEST_P(), flutter::testing::TEST_P(), and flutter::DlCanvasDelegate::translate().

Member Data Documentation

kShadowLightHeight

constexpr DlScalar flutter::DlCanvas::kShadowLightHeight = 600

staticconstexpr

Definition at line 215 of file dl_canvas.h.

Referenced by flutter::DlSkCanvasDispatcher::DrawShadow().

kShadowLightRadius

constexpr DlScalar flutter::DlCanvas::kShadowLightRadius = 800

staticconstexpr

Definition at line 216 of file dl_canvas.h.

Referenced by flutter::DlSkCanvasDispatcher::DrawShadow().

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

• display_list/dl_canvas.h
• display_list/dl_canvas.cc