Flutter Impeller
filter_contents_filter_input.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_FILTER_CONTENTS_FILTER_INPUT_H_
6 #define FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_FILTER_CONTENTS_FILTER_INPUT_H_
7 
9 
10 namespace impeller {
11 
12 class FilterContentsFilterInput final : public FilterInput {
13  public:
14  ~FilterContentsFilterInput() override;
15 
16  // |FilterInput|
17  Variant GetInput() const override;
18 
19  // |FilterInput|
20  std::optional<Snapshot> GetSnapshot(const std::string& label,
21  const ContentContext& renderer,
22  const Entity& entity,
23  std::optional<Rect> coverage_limit,
24  int32_t mip_count) const override;
25 
26  // |FilterInput|
27  std::optional<Rect> GetCoverage(const Entity& entity) const override;
28 
29  // |FilterInput|
30  std::optional<Rect> GetSourceCoverage(
31  const Matrix& effect_transform,
32  const Rect& output_limit) const override;
33 
34  // |FilterInput|
35  Matrix GetLocalTransform(const Entity& entity) const override;
36 
37  // |FilterInput|
38  Matrix GetTransform(const Entity& entity) const override;
39 
40  // |FilterInput|
41  void PopulateGlyphAtlas(
42  const std::shared_ptr<LazyGlyphAtlas>& lazy_glyph_atlas,
43  Scalar scale) override;
44 
45  // |FilterInput|
46  bool IsTranslationOnly() const override;
47 
48  // |FilterInput|
49  bool IsLeaf() const override;
50 
51  // |FilterInput|
52  void SetLeafInputs(const FilterInput::Vector& inputs) override;
53 
54  // |FilterInput|
55  virtual void SetEffectTransform(const Matrix& matrix) override;
56 
57  // |FilterInput|
58  virtual void SetRenderingMode(Entity::RenderingMode rendering_mode) override;
59 
60  private:
61  explicit FilterContentsFilterInput(std::shared_ptr<FilterContents> filter);
62 
63  std::shared_ptr<FilterContents> filter_;
64  mutable std::optional<Snapshot> snapshot_;
65 
66  friend FilterInput;
67 };
68 
69 } // namespace impeller
70 
71 #endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_FILTER_CONTENTS_FILTER_INPUT_H_
impeller::FilterContentsFilterInput::IsLeaf
bool IsLeaf() const override
Returns true unless this input is a FilterInput, which may take other inputs.
Definition: filter_contents_filter_input.cc:73
impeller::FilterContentsFilterInput
Definition: filter_contents_filter_input.h:12
impeller::Scalar
float Scalar
Definition: scalar.h:18
impeller::FilterContentsFilterInput::GetSourceCoverage
std::optional< Rect > GetSourceCoverage(const Matrix &effect_transform, const Rect &output_limit) const override
Definition: filter_contents_filter_input.cc:48
impeller::FilterContentsFilterInput::GetSnapshot
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
Definition: filter_contents_filter_input.cc:24
impeller::FilterContentsFilterInput::SetRenderingMode
virtual void SetRenderingMode(Entity::RenderingMode rendering_mode) override
Turns on subpass mode for filter inputs.
Definition: filter_contents_filter_input.cc:86
impeller::FilterContentsFilterInput::GetTransform
Matrix GetTransform(const Entity &entity) const override
Get the transform of this FilterInput. This is equivalent to calling entity.GetTransform() * GetLocal...
Definition: filter_contents_filter_input.cc:59
impeller::FilterContentsFilterInput::GetInput
Variant GetInput() const override
Definition: filter_contents_filter_input.cc:20
impeller::Entity
Definition: entity.h:21
impeller::FilterContentsFilterInput::GetLocalTransform
Matrix GetLocalTransform(const Entity &entity) const override
Get the local transform of this filter input. This transform is relative to the Entity transform spac...
Definition: filter_contents_filter_input.cc:54
impeller::FilterContentsFilterInput::SetEffectTransform
virtual void SetEffectTransform(const Matrix &matrix) override
Sets the effect transform of filter inputs.
Definition: filter_contents_filter_input.cc:82
impeller::FilterContentsFilterInput::IsTranslationOnly
bool IsTranslationOnly() const override
Definition: filter_contents_filter_input.cc:69
impeller::FilterInput
Definition: filter_input.h:30
impeller::FilterInput::Variant
std::variant< std::shared_ptr< FilterContents >, std::shared_ptr< Contents >, std::shared_ptr< Texture >, Rect > Variant
Definition: filter_input.h:37
filter_input.h
impeller::FilterContentsFilterInput::PopulateGlyphAtlas
void PopulateGlyphAtlas(const std::shared_ptr< LazyGlyphAtlas > &lazy_glyph_atlas, Scalar scale) override
Definition: filter_contents_filter_input.cc:63
impeller::FilterContentsFilterInput::GetCoverage
std::optional< Rect > GetCoverage(const Entity &entity) const override
Definition: filter_contents_filter_input.cc:43
scale
const Scalar scale
Definition: stroke_path_geometry.cc:297
impeller::Entity::RenderingMode
RenderingMode
Definition: entity.h:28
impeller::FilterInput::Vector
std::vector< FilterInput::Ref > Vector
Definition: filter_input.h:33
impeller
Definition: aiks_blur_unittests.cc:20
impeller::FilterContentsFilterInput::~FilterContentsFilterInput
~FilterContentsFilterInput() override
impeller::ContentContext
Definition: content_context.h:392
impeller::TRect< Scalar >
impeller::Matrix
A 4x4 matrix using column-major storage.
Definition: matrix.h:37
impeller::FilterContentsFilterInput::SetLeafInputs
void SetLeafInputs(const FilterInput::Vector &inputs) override
Replaces the inputs of all leaf FilterContents with a new set of inputs.
Definition: filter_contents_filter_input.cc:77