#include <dl_sk_paint_dispatcher.h>

Inheritance diagram for flutter::DlSkPaintDispatchHelper:

Public Member Functions
	DlSkPaintDispatchHelper (SkScalar opacity=SK_Scalar1)

void	setAntiAlias (bool aa) override

void	setDrawStyle (DlDrawStyle style) override

void	setColor (DlColor color) override

void	setStrokeWidth (SkScalar width) override

void	setStrokeMiter (SkScalar limit) override

void	setStrokeCap (DlStrokeCap cap) override

void	setStrokeJoin (DlStrokeJoin join) override

void	setColorSource (const DlColorSource *source) override

void	setColorFilter (const DlColorFilter *filter) override

void	setInvertColors (bool invert) override

void	setBlendMode (DlBlendMode mode) override

void	setPathEffect (const DlPathEffect *effect) override

void	setMaskFilter (const DlMaskFilter *filter) override

void	setImageFilter (const DlImageFilter *filter) override

const SkPaint &	paint (bool uses_shader=true)

SkScalar	opacity ()

SkScalar	combined_opacity ()

bool	has_opacity ()

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	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, 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	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

Protected Member Functions
void	save_opacity (SkScalar opacity_for_children)

void	restore_opacity ()

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

Definition at line 16 of file dl_sk_paint_dispatcher.h.

Constructor & Destructor Documentation

◆ DlSkPaintDispatchHelper()

flutter::DlSkPaintDispatchHelper::DlSkPaintDispatchHelper ( SkScalar opacity = SK_Scalar1 )

inlineexplicit

Definition at line 18 of file dl_sk_paint_dispatcher.h.

      : current_color_(SK_ColorBLACK), opacity_(opacity) {
    if (opacity < SK_Scalar1) {
      paint_.setAlphaf(opacity);
    }
  }

Member Function Documentation

◆ combined_opacity()

SkScalar flutter::DlSkPaintDispatchHelper::combined_opacity ( )

inline

Returns the combined opacity that includes both the current opacity attribute and the alpha of the most recent color. The most recently set color will have combined the two and stored the combined value in the alpha of the paint.

Definition at line 64 of file dl_sk_paint_dispatcher.h.

64{ return paint_.getAlphaf(); }

SkPaint::getAlphaf

float getAlphaf() const

Definition SkPaint.h:261

◆ has_opacity()

bool flutter::DlSkPaintDispatchHelper::has_opacity ( )

inline

Returns true iff the current opacity attribute is not opaque, irrespective of the alpha of the current color

Definition at line 67 of file dl_sk_paint_dispatcher.h.

67{ return opacity_ < SK_Scalar1; }

◆ opacity()

SkScalar flutter::DlSkPaintDispatchHelper::opacity ( )

inline

Returns the current opacity attribute which is used to reduce the alpha of all setColor calls encountered in the streeam

Definition at line 59 of file dl_sk_paint_dispatcher.h.

59{ return opacity_; }

◆ paint()

const SkPaint & flutter::DlSkPaintDispatchHelper::paint ( bool uses_shader = true )

inline

Definition at line 40 of file dl_sk_paint_dispatcher.h.

                                                {
    // On the Impeller backend, we will only support dithering of *gradients*,
    // and it will be enabled by default (without the option to disable it).
    // Until Skia support is completely removed, we only want to respect the
    // dither flag for gradients (otherwise it will also apply to, for
    // example, image ops and image sources, which are not dithered in
    // Impeller) and only on those operations that use the color source.
    //
    // The color_source_gradient_ flag lets us know if the color source is
    // a gradient and then the uses_shader flag passed in to this method by
    // the rendering op lets us know if the color source is used (and is
    // therefore the primary source of colors for the op).
    //
    // See https://github.com/flutter/flutter/issues/112498.
    paint_.setDither(uses_shader && color_source_gradient_);
    return paint_;
  }

◆ restore_opacity()

void flutter::DlSkPaintDispatchHelper::restore_opacity ( )

protected

Definition at line 32 of file dl_sk_paint_dispatcher.cc.

                                              {
  if (save_stack_.empty()) {
    return;
  }
  set_opacity(save_stack_.back().opacity);
  save_stack_.pop_back();
}

◆ save_opacity()

void flutter::DlSkPaintDispatchHelper::save_opacity ( SkScalar opacity_for_children )

protected

Definition at line 28 of file dl_sk_paint_dispatcher.cc.

                                                                 {
  save_stack_.emplace_back(opacity_);
  set_opacity(child_opacity);
}

◆ setAntiAlias()

void flutter::DlSkPaintDispatchHelper::setAntiAlias ( bool aa )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 40 of file dl_sk_paint_dispatcher.cc.

                                                  {
  paint_.setAntiAlias(aa);
}

◆ setBlendMode()

void flutter::DlSkPaintDispatchHelper::setBlendMode ( DlBlendMode mode )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 69 of file dl_sk_paint_dispatcher.cc.

                                                           {
  paint_.setBlendMode(ToSk(mode));
}

◆ setColor()

void flutter::DlSkPaintDispatchHelper::setColor ( DlColor color )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 62 of file dl_sk_paint_dispatcher.cc.

                                                    {
  current_color_ = ToSk(color);
  paint_.setColor(ToSk(color));
  if (has_opacity()) {
    paint_.setAlphaf(paint_.getAlphaf() * opacity());
  }
}

◆ setColorFilter()

void flutter::DlSkPaintDispatchHelper::setColorFilter ( const DlColorFilter * filter )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 87 of file dl_sk_paint_dispatcher.cc.

                                                                        {
  sk_color_filter_ = ToSk(filter);
  paint_.setColorFilter(makeColorFilter());
}

◆ setColorSource()

void flutter::DlSkPaintDispatchHelper::setColorSource ( const DlColorSource * source )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 72 of file dl_sk_paint_dispatcher.cc.

                                                                        {
  // On the Impeller backend, we only support dithering of *gradients*, and
  // so we need to set the dither flag whenever we render a gradient.
  //
  // In this method we can determine whether or not the source is a gradient,
  // but we don't have the other half of the information which is what
  // rendering op is being performed. So, we simply record whether the
  // source is a gradient here and let the |paint()| method figure out
  // the rest (i.e. whether the color source will be used).
  color_source_gradient_ = source && source->isGradient();
  paint_.setShader(ToSk(source));
}

◆ setDrawStyle()

void flutter::DlSkPaintDispatchHelper::setDrawStyle ( DlDrawStyle style )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 53 of file dl_sk_paint_dispatcher.cc.

                                                            {
  paint_.setStyle(ToSk(style));
}

◆ setImageFilter()

void flutter::DlSkPaintDispatchHelper::setImageFilter ( const DlImageFilter * filter )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 84 of file dl_sk_paint_dispatcher.cc.

                                                                        {
  paint_.setImageFilter(ToSk(filter));
}

◆ setInvertColors()

void flutter::DlSkPaintDispatchHelper::setInvertColors ( bool invert )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 43 of file dl_sk_paint_dispatcher.cc.

                                                         {
  invert_colors_ = invert;
  paint_.setColorFilter(makeColorFilter());
}

◆ setMaskFilter()

void flutter::DlSkPaintDispatchHelper::setMaskFilter ( const DlMaskFilter * filter )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 94 of file dl_sk_paint_dispatcher.cc.

                                                                      {
  paint_.setMaskFilter(ToSk(filter));
}

◆ setPathEffect()

void flutter::DlSkPaintDispatchHelper::setPathEffect ( const DlPathEffect * effect )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 91 of file dl_sk_paint_dispatcher.cc.

                                                                      {
  paint_.setPathEffect(ToSk(effect));
}

◆ setStrokeCap()

void flutter::DlSkPaintDispatchHelper::setStrokeCap ( DlStrokeCap cap )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 47 of file dl_sk_paint_dispatcher.cc.

                                                          {
  paint_.setStrokeCap(ToSk(cap));
}

◆ setStrokeJoin()

void flutter::DlSkPaintDispatchHelper::setStrokeJoin ( DlStrokeJoin join )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 50 of file dl_sk_paint_dispatcher.cc.

                                                             {
  paint_.setStrokeJoin(ToSk(join));
}

◆ setStrokeMiter()

void flutter::DlSkPaintDispatchHelper::setStrokeMiter ( SkScalar limit )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 59 of file dl_sk_paint_dispatcher.cc.

                                                           {
  paint_.setStrokeMiter(limit);
}

◆ setStrokeWidth()

void flutter::DlSkPaintDispatchHelper::setStrokeWidth ( SkScalar width )

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 56 of file dl_sk_paint_dispatcher.cc.

                                                           {
  paint_.setStrokeWidth(width);
}

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

display_list/skia/dl_sk_paint_dispatcher.h
display_list/skia/dl_sk_paint_dispatcher.cc

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DlSkPaintDispatchHelper()

Member Function Documentation

◆ combined_opacity()

◆ has_opacity()

◆ opacity()

◆ paint()

◆ restore_opacity()

◆ save_opacity()

◆ setAntiAlias()

◆ setBlendMode()

◆ setColor()

◆ setColorFilter()

◆ setColorSource()

◆ setDrawStyle()

◆ setImageFilter()

◆ setInvertColors()

◆ setMaskFilter()

◆ setPathEffect()

◆ setStrokeCap()

◆ setStrokeJoin()

◆ setStrokeMiter()

◆ setStrokeWidth()