impeller::ContentsFilterInput Class Reference

#include <contents_filter_input.h>

Inheritance diagram for impeller::ContentsFilterInput:

Public Member Functions
	~ContentsFilterInput () override
Variant	GetInput () const override
std::optional< Snapshot >	GetSnapshot (const std::string &label, const ContentContext &renderer, const Entity &entity, std::optional< Rect > coverage_limit, int32_t mip_count) const override
std::optional< Rect >	GetCoverage (const Entity &entity) const override
void	PopulateGlyphAtlas (const std::shared_ptr< LazyGlyphAtlas > &lazy_glyph_atlas, Scalar scale) override
Public Member Functions inherited from impeller::FilterInput
virtual	~FilterInput ()
std::optional< Rect >	GetLocalCoverage (const Entity &entity) const
virtual std::optional< Rect >	GetSourceCoverage (const Matrix &effect_transform, const Rect &output_limit) const
virtual Matrix	GetLocalTransform (const Entity &entity) const
	Get the local transform of this filter input. This transform is relative to the Entity transform space.
virtual Matrix	GetTransform (const Entity &entity) const
	Get the transform of this FilterInput. This is equivalent to calling entity.GetTransform() * GetLocalTransform().
virtual bool	IsTranslationOnly () const
virtual bool	IsLeaf () const
	Returns true unless this input is a FilterInput, which may take other inputs.
virtual void	SetLeafInputs (const FilterInput::Vector &inputs)
	Replaces the inputs of all leaf FilterContents with a new set of inputs.
virtual void	SetEffectTransform (const Matrix &matrix)
	Sets the effect transform of filter inputs.
virtual void	SetRenderingMode (Entity::RenderingMode rendering_mode)
	Turns on subpass mode for filter inputs.

Additional Inherited Members
Public Types inherited from impeller::FilterInput
using	Ref = std::shared_ptr< FilterInput >
using	Vector = std::vector< FilterInput::Ref >
using	Variant = std::variant< std::shared_ptr< FilterContents >, std::shared_ptr< Contents >, std::shared_ptr< Texture >, Rect >
Static Public Member Functions inherited from impeller::FilterInput
static FilterInput::Ref	Make (Variant input, bool msaa_enabled=true)
static FilterInput::Ref	Make (std::shared_ptr< Texture > input, Matrix local_transform)
static FilterInput::Vector	Make (std::initializer_list< Variant > inputs)

Detailed Description

Definition at line 12 of file contents_filter_input.h.

Constructor & Destructor Documentation

~ContentsFilterInput()

impeller::ContentsFilterInput::~ContentsFilterInput ( )

overridedefault

Member Function Documentation

GetCoverage()

std::optional< Rect > impeller::ContentsFilterInput::GetCoverage ( const Entity &  entity ) const

overridevirtual

Implements impeller::FilterInput.

Definition at line 46 of file contents_filter_input.cc.

                                {
  return contents_->GetCoverage(entity);
}

GetInput()

FilterInput::Variant impeller::ContentsFilterInput::GetInput ( ) const

overridevirtual

Implements impeller::FilterInput.

Definition at line 20 of file contents_filter_input.cc.

                                                       {
  return contents_;
}

GetSnapshot()

std::optional< Snapshot > impeller::ContentsFilterInput::GetSnapshot ( const std::string &  label, const ContentContext &  renderer, const Entity &  entity, std::optional< Rect >  coverage_limit, int32_t  mip_count  ) const

overridevirtual

Implements impeller::FilterInput.

Definition at line 24 of file contents_filter_input.cc.

                             {
  if (!coverage_limit.has_value() && entity.GetContents()) {
    coverage_limit = entity.GetContents()->GetCoverageHint();
  }
  if (!snapshot_.has_value()) {
    snapshot_ = contents_->RenderToSnapshot(
        renderer,        // renderer
        entity,          // entity
        coverage_limit,  // coverage_limit
        std::nullopt,    // sampler_descriptor
        msaa_enabled_,   // msaa_enabled
        /*mip_count=*/mip_count,
        SPrintF("Contents to %s Filter Snapshot", label.c_str()));  // label
  }
  return snapshot_;
}

PopulateGlyphAtlas()

void impeller::ContentsFilterInput::PopulateGlyphAtlas ( const std::shared_ptr< LazyGlyphAtlas > &  lazy_glyph_atlas, Scalar  scale  )

overridevirtual

See also

Contents::PopulateGlyphAtlas

Reimplemented from impeller::FilterInput.

Definition at line 51 of file contents_filter_input.cc.

                  {
  contents_->PopulateGlyphAtlas(lazy_glyph_atlas, scale);
}

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

• impeller/entity/contents/filters/inputs/contents_filter_input.h
• impeller/entity/contents/filters/inputs/contents_filter_input.cc