Flutter Impeller
texture_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_TEXTURE_FILTER_INPUT_H_
6 #define FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_
7 
9 
11 
12 namespace impeller {
13 
14 class TextureFilterInput final : public FilterInput {
15  public:
16  ~TextureFilterInput() override;
17 
18  // |FilterInput|
19  Variant GetInput() const override;
20 
21  // |FilterInput|
22  std::optional<Snapshot> GetSnapshot(const std::string& label,
23  const ContentContext& renderer,
24  const Entity& entity,
25  std::optional<Rect> coverage_limit,
26  int32_t mip_count) const override;
27 
28  // |FilterInput|
29  std::optional<Rect> GetCoverage(const Entity& entity) const override;
30 
31  // |FilterInput|
32  Matrix GetLocalTransform(const Entity& entity) const override;
33 
34  private:
35  explicit TextureFilterInput(std::shared_ptr<Texture> texture,
36  Matrix local_transform = Matrix());
37 
38  std::shared_ptr<Texture> texture_;
39  Matrix local_transform_;
40 
41  friend FilterInput;
42 };
43 
44 } // namespace impeller
45 
46 #endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_
impeller::TextureFilterInput::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: texture_filter_input.cc:44
impeller::TextureFilterInput
Definition: texture_filter_input.h:14
impeller::TextureFilterInput::GetInput
Variant GetInput() const override
Definition: texture_filter_input.cc:19
impeller::TextureFilterInput::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: texture_filter_input.cc:23
matrix.h
impeller::Entity
Definition: entity.h:21
impeller::FilterInput
Definition: filter_input.h:30
impeller::TextureFilterInput::~TextureFilterInput
~TextureFilterInput() override
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::TextureFilterInput::GetCoverage
std::optional< Rect > GetCoverage(const Entity &entity) const override
Definition: texture_filter_input.cc:38
impeller
Definition: aiks_blur_unittests.cc:20
impeller::ContentContext
Definition: content_context.h:392
impeller::Matrix
A 4x4 matrix using column-major storage.
Definition: matrix.h:37