#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	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 void	setStrokeWidth (float width)=0

virtual void	setStrokeMiter (float limit)=0

virtual void	save ()=0

virtual void	save (uint32_t total_content_depth)

virtual void	saveLayer (const DlRect &bounds, const SaveLayerOptions options, const DlImageFilter *backdrop=nullptr, std::optional< int64_t > backdrop_id=std::nullopt)=0

virtual void	saveLayer (const DlRect &bounds, const SaveLayerOptions &options, uint32_t total_content_depth, DlBlendMode max_content_blend_mode, const DlImageFilter *backdrop=nullptr, std::optional< int64_t > backdrop_id=std::nullopt)

virtual void	restore ()=0

virtual void	saveLayer (const DlRect bounds, const SaveLayerOptions options, const DlImageFilter backdrop=nullptr, std::optional< int64_t > backdrop_id=std::nullopt) final

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	clipRect (const DlRect &rect, DlClipOp clip_op, bool is_aa)=0

virtual void	clipOval (const DlRect &bounds, DlClipOp clip_op, bool is_aa)=0

virtual void	clipRoundRect (const DlRoundRect &rrect, DlClipOp clip_op, bool is_aa)=0

virtual void	clipRoundSuperellipse (const DlRoundSuperellipse &rse, DlClipOp clip_op, bool is_aa)=0

virtual void	clipPath (const DlPath &path, DlClipOp clip_op, bool is_aa)=0

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

virtual void	drawPaint ()=0

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

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

virtual void	drawRect (const DlRect &rect)=0

virtual void	drawOval (const DlRect &bounds)=0

virtual void	drawCircle (const DlPoint &center, DlScalar radius)=0

virtual void	drawRoundRect (const DlRoundRect &rrect)=0

virtual void	drawDiffRoundRect (const DlRoundRect &outer, const DlRoundRect &inner)=0

virtual void	drawRoundSuperellipse (const DlRoundSuperellipse &rse)=0

virtual void	drawPath (const DlPath &path)=0

virtual void	drawArc (const DlRect &oval_bounds, DlScalar start_degrees, DlScalar sweep_degrees, bool use_center)=0

virtual void	drawPoints (DlPointMode mode, uint32_t count, const DlPoint points[])=0

virtual void	drawVertices (const std::shared_ptr< DlVertices > &vertices, DlBlendMode mode)=0

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

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

virtual void	drawImageNine (const sk_sp< DlImage > image, const DlIRect &center, const DlRect &dst, DlFilterMode filter, bool render_with_attributes)=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 *cull_rect, bool render_with_attributes)=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)=0

virtual void	drawShadow (const DlPath &path, const DlColor color, const DlScalar elevation, bool transparent_occluder, DlScalar 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)

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_(DlColor::kBlack()), opacity_(opacity) {
    if (opacity < SK_Scalar1) {
      paint_.setAlphaf(opacity);
    }
  }

References 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 63 of file dl_sk_paint_dispatcher.h.

63{ return paint_.getAlphaf(); }

Referenced by flutter::DlSkCanvasDispatcher::drawDisplayList(), and flutter::DlSkCanvasDispatcher::saveLayer().

◆ 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 66 of file dl_sk_paint_dispatcher.h.

66{ return opacity_ < SK_Scalar1; }

Referenced by flutter::DlSkCanvasDispatcher::safe_paint(), and setColor().

◆ 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 58 of file dl_sk_paint_dispatcher.h.

58{ return opacity_; }

Referenced by DlSkPaintDispatchHelper(), flutter::DlSkCanvasDispatcher::drawColor(), flutter::DlSkCanvasDispatcher::drawDisplayList(), flutter::DlSkCanvasDispatcher::safe_paint(), flutter::DlSkCanvasDispatcher::save(), flutter::DlSkCanvasDispatcher::saveLayer(), and setColor().

◆ paint()

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

inline

Definition at line 39 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();
}

Referenced by flutter::DlSkCanvasDispatcher::restore(), and flutter::testing::MockDispatchHelper::restore().

◆ 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);
}

Referenced by flutter::DlSkCanvasDispatcher::save(), flutter::testing::MockDispatchHelper::save(), and flutter::DlSkCanvasDispatcher::saveLayer().

◆ 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));
}

References flutter::mode, and flutter::ToSk().

◆ setColor()

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

overridevirtual

Implements flutter::DlOpReceiver.

Definition at line 62 of file dl_sk_paint_dispatcher.cc.

                                                    {
  current_color_ = color;
  paint_.setColor(ToSkColor4f(color));
  if (has_opacity()) {
    paint_.setAlphaf(paint_.getAlphaf() * opacity());
  }
}

References has_opacity(), opacity(), and flutter::ToSkColor4f().

◆ 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());
}

References flutter::ToSk().

◆ 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));
}

References flutter::DlColorSource::isGradient(), and flutter::ToSk().

◆ 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));
}

References flutter::ToSk().

◆ 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));
}

References flutter::ToSk().

◆ 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 91 of file dl_sk_paint_dispatcher.cc.

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

References flutter::ToSk().

◆ 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));
}

References flutter::ToSk().

◆ 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));
}

References flutter::ToSk().

◆ setStrokeMiter()

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

override

Definition at line 59 of file dl_sk_paint_dispatcher.cc.

                                                           {
  paint_.setStrokeMiter(limit);
}

◆ setStrokeWidth()

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

override

Definition at line 56 of file dl_sk_paint_dispatcher.cc.

                                                           {
  paint_.setStrokeWidth(width);
}

References 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()

◆ setStrokeCap()

◆ setStrokeJoin()

◆ setStrokeMiter()

◆ setStrokeWidth()