impeller::PaintPassDelegate Class Reference

#include <paint_pass_delegate.h>

Inheritance diagram for impeller::PaintPassDelegate:

Public Member Functions
	PaintPassDelegate (Paint paint)
	~PaintPassDelegate () override
bool	CanElide () override
bool	CanCollapseIntoParentPass (EntityPass *entity_pass) override
	Whether or not this entity pass can be collapsed into the parent. If true, this method may modify the entities for the current pass. More...
std::shared_ptr< Contents >	CreateContentsForSubpassTarget (std::shared_ptr< Texture > target, const Matrix &effect_transform) override
std::shared_ptr< FilterContents >	WithImageFilter (const FilterInput::Variant &input, const Matrix &effect_transform) const override
Public Member Functions inherited from impeller::EntityPassDelegate
	EntityPassDelegate ()
virtual	~EntityPassDelegate ()

Additional Inherited Members
Static Public Member Functions inherited from impeller::EntityPassDelegate
static std::unique_ptr< EntityPassDelegate >	MakeDefault ()

Detailed Description

Definition at line 15 of file paint_pass_delegate.h.

Constructor & Destructor Documentation

PaintPassDelegate()

impeller::PaintPassDelegate::PaintPassDelegate ( Paint  paint )

explicit

PaintPassDelegate

Definition at line 18 of file paint_pass_delegate.cc.

: paint_(std::move(paint)) {}

~PaintPassDelegate()

impeller::PaintPassDelegate::~PaintPassDelegate ( )

overridedefault

Member Function Documentation

CanCollapseIntoParentPass()

bool impeller::PaintPassDelegate::CanCollapseIntoParentPass ( EntityPass *  entity_pass )

overridevirtual

Whether or not this entity pass can be collapsed into the parent. If true, this method may modify the entities for the current pass.

Implements impeller::EntityPassDelegate.

Definition at line 29 of file paint_pass_delegate.cc.

                                                                         {
  return false;
}

CanElide()

bool impeller::PaintPassDelegate::CanElide ( )

overridevirtual

Implements impeller::EntityPassDelegate.

Definition at line 24 of file paint_pass_delegate.cc.

                                 {
  return paint_.blend_mode == BlendMode::kDestination;
}

References impeller::Paint::blend_mode, and impeller::kDestination.

CreateContentsForSubpassTarget()

std::shared_ptr< Contents > impeller::PaintPassDelegate::CreateContentsForSubpassTarget ( std::shared_ptr< Texture >  target, const Matrix &  effect_transform  )

overridevirtual

Implements impeller::EntityPassDelegate.

Definition at line 34 of file paint_pass_delegate.cc.

                                    {
  auto contents = TextureContents::MakeRect(Rect::MakeSize(target->GetSize()));
  contents->SetTexture(target);
  contents->SetLabel("Subpass");
  contents->SetSourceRect(Rect::MakeSize(target->GetSize()));
  contents->SetOpacity(paint_.color.alpha);
  contents->SetDeferApplyingOpacity(true);
 
  return paint_.WithFiltersForSubpassTarget(std::move(contents),
                                            effect_transform);
}

References impeller::Color::alpha, impeller::Paint::color, impeller::TextureContents::MakeRect(), impeller::TRect< Scalar >::MakeSize(), and impeller::Paint::WithFiltersForSubpassTarget().

Referenced by impeller::ExperimentalCanvas::Restore().

WithImageFilter()

std::shared_ptr< FilterContents > impeller::PaintPassDelegate::WithImageFilter ( const FilterInput::Variant &  input, const Matrix &  effect_transform  ) const

overridevirtual

Implements impeller::EntityPassDelegate.

Definition at line 49 of file paint_pass_delegate.cc.

                                          {
  return paint_.WithImageFilter(
      input, effect_transform,
      Entity::RenderingMode::kSubpassPrependSnapshotTransform);
}

References impeller::Entity::kSubpassPrependSnapshotTransform, and impeller::Paint::WithImageFilter().

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

• impeller/aiks/paint_pass_delegate.h
• impeller/aiks/paint_pass_delegate.cc