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  std::optional<Snapshot> GetSnapshot(std::string_view label,
20  const ContentContext& renderer,
21  const Entity& entity,
22  std::optional<Rect> coverage_limit,
23  int32_t mip_count) const override;
24 
25  // |FilterInput|
26  std::optional<Rect> GetCoverage(const Entity& entity) const override;
27 
28  // |FilterInput|
29  Matrix GetLocalTransform(const Entity& entity) const override;
30 
31  private:
32  explicit TextureFilterInput(std::shared_ptr<Texture> texture,
33  Matrix local_transform = Matrix());
34 
35  std::shared_ptr<Texture> texture_;
36  Matrix local_transform_;
37 
38  friend FilterInput;
39 };
40 
41 } // namespace impeller
42 
43 #endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_TEXTURE_FILTER_INPUT_H_
std::optional< Rect > GetCoverage(const Entity &entity) const override
std::optional< Snapshot > GetSnapshot(std::string_view label, const ContentContext &renderer, const Entity &entity, std::optional< Rect > coverage_limit, int32_t mip_count) 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 spac...
A 4x4 matrix using column-major storage.
Definition: matrix.h:37