impeller::TextureFilterInput Class Reference

#include <texture_filter_input.h>

Inheritance diagram for impeller::TextureFilterInput:

Public Member Functions
	~TextureFilterInput () 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
Matrix	GetLocalTransform (const Entity &entity) const override
	Get the local transform of this filter input. This transform is relative to the Entity transform space.
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	GetTransform (const Entity &entity) const
	Get the transform of this FilterInput. This is equivalent to calling entity.GetTransform() * GetLocalTransform().
virtual void	PopulateGlyphAtlas (const std::shared_ptr< LazyGlyphAtlas > &lazy_glyph_atlas, Scalar scale)
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 14 of file texture_filter_input.h.

Constructor & Destructor Documentation

~TextureFilterInput()

impeller::TextureFilterInput::~TextureFilterInput ( )

overridedefault

Member Function Documentation

GetCoverage()

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

overridevirtual

Implements impeller::FilterInput.

Definition at line 38 of file texture_filter_input.cc.

                                {
  return Rect::MakeSize(texture_->GetSize())
      .TransformBounds(GetTransform(entity));
}

GetInput()

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

overridevirtual

Implements impeller::FilterInput.

Definition at line 19 of file texture_filter_input.cc.

                                                      {
  return texture_;
}

GetLocalTransform()

Matrix impeller::TextureFilterInput::GetLocalTransform ( const Entity &  entity ) const

overridevirtual

Get the local transform of this filter input. This transform is relative to the Entity transform space.

Reimplemented from impeller::FilterInput.

Definition at line 44 of file texture_filter_input.cc.

                                                                       {
  return local_transform_;
}

GetSnapshot()

std::optional< Snapshot > impeller::TextureFilterInput::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 23 of file texture_filter_input.cc.

                             {
  auto snapshot =
      Snapshot{.texture = texture_, .transform = GetTransform(entity)};
  if (texture_->GetMipCount() > 1) {
    snapshot.sampler_descriptor.label = "TextureFilterInput Trilinear Sampler";
    snapshot.sampler_descriptor.mip_filter = MipFilter::kLinear;
  }
  return snapshot;
}

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

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