Performs a first pass over the display list to collect all text frames. More...

#include <dl_dispatcher.h>

Inheritance diagram for impeller::TextFrameDispatcher:

Public Member Functions
	TextFrameDispatcher (const ContentContext &renderer, const Matrix &initial_matrix)

void	save () override

void	saveLayer (const SkRect &bounds, const flutter::SaveLayerOptions options, const flutter::DlImageFilter *backdrop) override

void	restore () override

void	translate (SkScalar tx, SkScalar ty) override

void	scale (SkScalar sx, SkScalar sy) override

void	rotate (SkScalar degrees) override

void	skew (SkScalar sx, SkScalar sy) override

void	transform2DAffine (SkScalar mxx, SkScalar mxy, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myt) override

void	transformFullPerspective (SkScalar mxx, SkScalar mxy, SkScalar mxz, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myz, SkScalar myt, SkScalar mzx, SkScalar mzy, SkScalar mzz, SkScalar mzt, SkScalar mwx, SkScalar mwy, SkScalar mwz, SkScalar mwt) override

void	transformReset () override

void	drawTextFrame (const std::shared_ptr< impeller::TextFrame > &text_frame, SkScalar x, SkScalar y) override

void	drawDisplayList (const sk_sp< flutter::DisplayList > display_list, SkScalar opacity) override

void	setDrawStyle (flutter::DlDrawStyle style) override

void	setColor (flutter::DlColor color) override

void	setStrokeWidth (SkScalar width) override

void	setStrokeMiter (SkScalar limit) override

void	setStrokeCap (flutter::DlStrokeCap cap) override

void	setStrokeJoin (flutter::DlStrokeJoin join) override

Public Member Functions inherited from flutter::IgnoreAttributeDispatchHelper
void	setAntiAlias (bool aa) override

void	setInvertColors (bool invert) override

void	setStrokeCap (DlStrokeCap cap) override

void	setStrokeJoin (DlStrokeJoin join) override

void	setDrawStyle (DlDrawStyle style) override

void	setStrokeWidth (float width) override

void	setStrokeMiter (float limit) override

void	setColor (DlColor color) override

void	setBlendMode (DlBlendMode mode) override

void	setColorSource (const DlColorSource *source) override

void	setImageFilter (const DlImageFilter *filter) override

void	setColorFilter (const DlColorFilter *filter) override

void	setMaskFilter (const DlMaskFilter *filter) override

Public Member Functions inherited from flutter::DlOpReceiver
virtual bool	PrefersImpellerPaths () const

virtual void	clipPath (const CacheablePath &cache, ClipOp clip_op, bool is_aa)

virtual void	drawPath (const CacheablePath &cache)

virtual void	drawShadow (const CacheablePath &cache, const DlColor color, const SkScalar elevation, bool transparent_occluder, SkScalar dpr)

virtual void	setAntiAlias (bool aa)=0

virtual void	setDrawStyle (DlDrawStyle style)=0

virtual void	setColor (DlColor color)=0

virtual void	setStrokeWidth (float width)=0

virtual void	setStrokeMiter (float limit)=0

virtual void	setStrokeCap (DlStrokeCap cap)=0

virtual void	setStrokeJoin (DlStrokeJoin join)=0

virtual void	setColorSource (const DlColorSource *source)=0

virtual void	setColorFilter (const DlColorFilter *filter)=0

virtual void	setInvertColors (bool invert)=0

virtual void	setBlendMode (DlBlendMode mode)=0

virtual void	setMaskFilter (const DlMaskFilter *filter)=0

virtual void	setImageFilter (const DlImageFilter *filter)=0

virtual void	save ()=0

virtual void	save (uint32_t total_content_depth)

virtual void	saveLayer (const SkRect &bounds, const SaveLayerOptions options, const DlImageFilter *backdrop=nullptr)=0

virtual void	saveLayer (const SkRect &bounds, const SaveLayerOptions &options, uint32_t total_content_depth, DlBlendMode max_content_blend_mode, const DlImageFilter *backdrop=nullptr)

virtual void	restore ()=0

virtual void	saveLayer (const SkRect bounds, const SaveLayerOptions options, const DlImageFilter backdrop=nullptr) final

virtual void	translate (SkScalar tx, SkScalar ty)=0

virtual void	scale (SkScalar sx, SkScalar sy)=0

virtual void	rotate (SkScalar degrees)=0

virtual void	skew (SkScalar sx, SkScalar sy)=0

virtual void	transform2DAffine (SkScalar mxx, SkScalar mxy, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myt)=0

virtual void	transformFullPerspective (SkScalar mxx, SkScalar mxy, SkScalar mxz, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myz, SkScalar myt, SkScalar mzx, SkScalar mzy, SkScalar mzz, SkScalar mzt, SkScalar mwx, SkScalar mwy, SkScalar mwz, SkScalar mwt)=0

virtual void	transformReset ()=0

virtual void	clipRect (const SkRect &rect, ClipOp clip_op, bool is_aa)=0

virtual void	clipRRect (const SkRRect &rrect, ClipOp clip_op, bool is_aa)=0

virtual void	clipPath (const SkPath &path, ClipOp clip_op, bool is_aa)=0

virtual void	drawColor (DlColor color, DlBlendMode mode)=0

virtual void	drawPaint ()=0

virtual void	drawLine (const SkPoint &p0, const SkPoint &p1)=0

virtual void	drawDashedLine (const DlPoint &p0, const DlPoint &p1, DlScalar on_length, DlScalar off_length)=0

virtual void	drawRect (const SkRect &rect)=0

virtual void	drawOval (const SkRect &bounds)=0

virtual void	drawCircle (const SkPoint &center, SkScalar radius)=0

virtual void	drawRRect (const SkRRect &rrect)=0

virtual void	drawDRRect (const SkRRect &outer, const SkRRect &inner)=0

virtual void	drawPath (const SkPath &path)=0

virtual void	drawArc (const SkRect &oval_bounds, SkScalar start_degrees, SkScalar sweep_degrees, bool use_center)=0

virtual void	drawPoints (PointMode mode, uint32_t count, const SkPoint points[])=0

virtual void	drawVertices (const DlVertices *vertices, DlBlendMode mode)=0

virtual void	drawImage (const sk_sp< DlImage > image, const SkPoint point, DlImageSampling sampling, bool render_with_attributes)=0

virtual void	drawImageRect (const sk_sp< DlImage > image, const SkRect &src, const SkRect &dst, DlImageSampling sampling, bool render_with_attributes, SrcRectConstraint constraint=SrcRectConstraint::kFast)=0

virtual void	drawImageNine (const sk_sp< DlImage > image, const SkIRect &center, const SkRect &dst, DlFilterMode filter, bool render_with_attributes)=0

virtual void	drawAtlas (const sk_sp< DlImage > atlas, const SkRSXform xform[], const SkRect tex[], const DlColor colors[], int count, DlBlendMode mode, DlImageSampling sampling, const SkRect *cull_rect, bool render_with_attributes)=0

virtual void	drawDisplayList (const sk_sp< DisplayList > display_list, SkScalar opacity=SK_Scalar1)=0

virtual void	drawTextBlob (const sk_sp< SkTextBlob > blob, SkScalar x, SkScalar y)=0

virtual void	drawTextFrame (const std::shared_ptr< impeller::TextFrame > &text_frame, SkScalar x, SkScalar y)=0

virtual void	drawShadow (const SkPath &path, const DlColor color, const SkScalar elevation, bool transparent_occluder, SkScalar dpr)=0

Public Member Functions inherited from flutter::IgnoreDrawDispatchHelper
void	save () override

void	saveLayer (const SkRect &bounds, const SaveLayerOptions options, const DlImageFilter *backdrop) override

void	restore () override

void	drawColor (DlColor color, DlBlendMode mode) override

void	drawPaint () override

void	drawLine (const SkPoint &p0, const SkPoint &p1) override

void	drawDashedLine (const DlPoint &p0, const DlPoint &p1, DlScalar on_length, DlScalar off_length) override

void	drawRect (const SkRect &rect) override

void	drawOval (const SkRect &bounds) override

void	drawCircle (const SkPoint &center, SkScalar radius) override

void	drawRRect (const SkRRect &rrect) override

void	drawDRRect (const SkRRect &outer, const SkRRect &inner) override

void	drawPath (const SkPath &path) override

void	drawArc (const SkRect &oval_bounds, SkScalar start_degrees, SkScalar sweep_degrees, bool use_center) override

void	drawPoints (DlCanvas::PointMode mode, uint32_t count, const SkPoint points[]) override

void	drawVertices (const DlVertices *vertices, DlBlendMode mode) override

void	drawImage (const sk_sp< DlImage > image, const SkPoint point, DlImageSampling sampling, bool render_with_attributes) override

void	drawImageRect (const sk_sp< DlImage > image, const SkRect &src, const SkRect &dst, DlImageSampling sampling, bool render_with_attributes, SrcRectConstraint constraint) override

void	drawImageNine (const sk_sp< DlImage > image, const SkIRect &center, const SkRect &dst, DlFilterMode filter, bool render_with_attributes) override

void	drawAtlas (const sk_sp< DlImage > atlas, const SkRSXform xform[], const SkRect tex[], const DlColor colors[], int count, DlBlendMode mode, DlImageSampling sampling, const SkRect *cull_rect, bool render_with_attributes) override

void	drawDisplayList (const sk_sp< DisplayList > display_list, SkScalar opacity) override

void	drawTextBlob (const sk_sp< SkTextBlob > blob, SkScalar x, SkScalar y) override

void	drawTextFrame (const std::shared_ptr< impeller::TextFrame > &text_frame, SkScalar x, SkScalar y) override

void	drawShadow (const SkPath &path, const DlColor color, const SkScalar elevation, bool transparent_occluder, SkScalar dpr) override

Additional Inherited Members
Static Public Attributes inherited from flutter::DlOpReceiver
static constexpr int	kMaxDrawPointsCount = ((1 << 29) - 1)

Protected Types inherited from flutter::DlOpReceiver
using	ClipOp = DlCanvas::ClipOp

using	PointMode = DlCanvas::PointMode

using	SrcRectConstraint = DlCanvas::SrcRectConstraint

Detailed Description

Performs a first pass over the display list to collect all text frames.

Definition at line 335 of file dl_dispatcher.h.

Constructor & Destructor Documentation

◆ TextFrameDispatcher()

impeller::TextFrameDispatcher::TextFrameDispatcher	(	const ContentContext &	renderer,
		const Matrix &	initial_matrix
	)

Definition at line 1234 of file dl_dispatcher.cc.

1236 : renderer_(renderer), matrix_(initial_matrix) {}

parse_lottieweb_trace.renderer

renderer

Definition: parse_lottieweb_trace.py:13

Member Function Documentation

◆ drawDisplayList()

void impeller::TextFrameDispatcher::drawDisplayList	(	const sk_sp< flutter::DisplayList >	display_list,
		SkScalar	opacity
	)

overridevirtual

Reimplemented from flutter::IgnoreDrawDispatchHelper.

Definition at line 1322 of file dl_dispatcher.cc.

                      {
  [[maybe_unused]] size_t stack_depth = stack_.size();
  save();
  display_list->Dispatch(*this);
  restore();
  FML_DCHECK(stack_depth == stack_.size());
}

◆ drawTextFrame()

void impeller::TextFrameDispatcher::drawTextFrame	(	const std::shared_ptr< impeller::TextFrame > &	text_frame,
		SkScalar	x,
		SkScalar	y
	)

override

Definition at line 1300 of file dl_dispatcher.cc.

                {
  GlyphProperties properties;
  if (paint_.style == Paint::Style::kStroke) {
    properties.stroke = true;
    properties.stroke_cap = paint_.stroke_cap;
    properties.stroke_join = paint_.stroke_join;
    properties.stroke_miter = paint_.stroke_miter;
    properties.stroke_width = paint_.stroke_width;
  }
  if (text_frame->HasColor()) {
    properties.color = paint_.color;
  }
  renderer_.GetLazyGlyphAtlas()->AddTextFrame(*text_frame,                    //
                                              matrix_.GetMaxBasisLengthXY(),  //
                                              Point(x, y),                    //
                                              properties                      //
  );
}

◆ restore()

void impeller::TextFrameDispatcher::restore ( )

overridevirtual

Reimplemented from flutter::IgnoreDrawDispatchHelper.

Definition at line 1248 of file dl_dispatcher.cc.

                                  {
  matrix_ = stack_.back();
  stack_.pop_back();
}

◆ rotate()

void impeller::TextFrameDispatcher::rotate ( SkScalar degrees )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1261 of file dl_dispatcher.cc.

                                                 {
  matrix_ = matrix_ * Matrix::MakeRotationZ(Degrees(degrees));
}

◆ save()

void impeller::TextFrameDispatcher::save ( )

overridevirtual

Reimplemented from flutter::IgnoreDrawDispatchHelper.

Definition at line 1238 of file dl_dispatcher.cc.

                               {
  stack_.emplace_back(matrix_);
}

◆ saveLayer()

void impeller::TextFrameDispatcher::saveLayer	(	const SkRect &	bounds,
		const flutter::SaveLayerOptions	options,
		const flutter::DlImageFilter *	backdrop
	)

overridevirtual

Reimplemented from flutter::IgnoreDrawDispatchHelper.

Definition at line 1242 of file dl_dispatcher.cc.

                                                                          {
  save();
}

◆ scale()

void impeller::TextFrameDispatcher::scale	(	SkScalar	sx,
		SkScalar	sy
	)

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1257 of file dl_dispatcher.cc.

                                                        {
  matrix_ = matrix_.Scale({sx, sy, 1.0f});
}

◆ setColor()

void impeller::TextFrameDispatcher::setColor ( flutter::DlColor color )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1338 of file dl_dispatcher.cc.

                                                       {
  paint_.color = {
      color.getRedF(),
      color.getGreenF(),
      color.getBlueF(),
      color.getAlphaF(),
  };
}

◆ setDrawStyle()

void impeller::TextFrameDispatcher::setDrawStyle ( flutter::DlDrawStyle style )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1333 of file dl_dispatcher.cc.

                                                               {
  paint_.style = ToStyle(style);
}

◆ setStrokeCap()

void impeller::TextFrameDispatcher::setStrokeCap ( flutter::DlStrokeCap cap )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1358 of file dl_dispatcher.cc.

                                                             {
  switch (cap) {
    case flutter::DlStrokeCap::kButt:
      paint_.stroke_cap = Cap::kButt;
      break;
    case flutter::DlStrokeCap::kRound:
      paint_.stroke_cap = Cap::kRound;
      break;
    case flutter::DlStrokeCap::kSquare:
      paint_.stroke_cap = Cap::kSquare;
      break;
  }
}

◆ setStrokeJoin()

void impeller::TextFrameDispatcher::setStrokeJoin ( flutter::DlStrokeJoin join )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1373 of file dl_dispatcher.cc.

                                                                {
  switch (join) {
    case flutter::DlStrokeJoin::kMiter:
      paint_.stroke_join = Join::kMiter;
      break;
    case flutter::DlStrokeJoin::kRound:
      paint_.stroke_join = Join::kRound;
      break;
    case flutter::DlStrokeJoin::kBevel:
      paint_.stroke_join = Join::kBevel;
      break;
  }
}

◆ setStrokeMiter()

void impeller::TextFrameDispatcher::setStrokeMiter ( SkScalar limit )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1353 of file dl_dispatcher.cc.

                                                       {
  paint_.stroke_miter = limit;
}

◆ setStrokeWidth()

void impeller::TextFrameDispatcher::setStrokeWidth ( SkScalar width )

overridevirtual

Reimplemented from flutter::IgnoreAttributeDispatchHelper.

Definition at line 1348 of file dl_dispatcher.cc.

                                                       {
  paint_.stroke_width = width;
}

◆ skew()

void impeller::TextFrameDispatcher::skew	(	SkScalar	sx,
		SkScalar	sy
	)

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1265 of file dl_dispatcher.cc.

                                                       {
  matrix_ = matrix_ * Matrix::MakeSkew(sx, sy);
}

◆ transform2DAffine()

void impeller::TextFrameDispatcher::transform2DAffine	(	SkScalar	mxx,
		SkScalar	mxy,
		SkScalar	mxt,
		SkScalar	myx,
		SkScalar	myy,
		SkScalar	myt
	)

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1271 of file dl_dispatcher.cc.

                                                                   {
    matrix_ = matrix_ * Matrix::MakeColumn(
        mxx,  myx,  0.0f, 0.0f,
        mxy,  myy,  0.0f, 0.0f,
        0.0f, 0.0f, 1.0f, 0.0f,
        mxt,  myt,  0.0f, 1.0f
    );
  }

◆ transformFullPerspective()

void impeller::TextFrameDispatcher::transformFullPerspective	(	SkScalar	mxx,
		SkScalar	mxy,
		SkScalar	mxz,
		SkScalar	mxt,
		SkScalar	myx,
		SkScalar	myy,
		SkScalar	myz,
		SkScalar	myt,
		SkScalar	mzx,
		SkScalar	mzy,
		SkScalar	mzz,
		SkScalar	mzt,
		SkScalar	mwx,
		SkScalar	mwy,
		SkScalar	mwz,
		SkScalar	mwt
	)

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1282 of file dl_dispatcher.cc.

                                                              {
    matrix_ = matrix_ * Matrix::MakeColumn(
        mxx, myx, mzx, mwx,
        mxy, myy, mzy, mwy,
        mxz, myz, mzz, mwz,
        mxt, myt, mzt, mwt
    );
  }

◆ transformReset()

void impeller::TextFrameDispatcher::transformReset ( )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1296 of file dl_dispatcher.cc.

                                         {
  matrix_ = Matrix();
}

◆ translate()

void impeller::TextFrameDispatcher::translate	(	SkScalar	tx,
		SkScalar	ty
	)

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 1253 of file dl_dispatcher.cc.

                                                            {
  matrix_ = matrix_.Translate({tx, ty});
}

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

impeller/display_list/dl_dispatcher.h
impeller/display_list/dl_dispatcher.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TextFrameDispatcher()

Member Function Documentation

◆ drawDisplayList()

◆ drawTextFrame()

◆ restore()

◆ rotate()

◆ save()

◆ saveLayer()

◆ scale()

◆ setColor()

◆ setDrawStyle()

◆ setStrokeCap()

◆ setStrokeJoin()

◆ setStrokeMiter()

◆ setStrokeWidth()

◆ skew()

◆ transform2DAffine()

◆ transformFullPerspective()

◆ transformReset()

◆ translate()