| Flutter Impeller |

placeholder_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_PLACEHOLDER_FILTER_INPUT_H_
6 #define FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_PLACEHOLDER_FILTER_INPUT_H_
7
8 #include "impeller/entity/contents/filters/inputs/filter_input.h"
9
10 namespace impeller {
11
12 class PlaceholderFilterInput final : public FilterInput {
13 public:
14 explicit PlaceholderFilterInput(Rect coverage);
15
16 ~PlaceholderFilterInput() 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 = 1) const override;
27
28 // |FilterInput|
29 std::optional<Rect> GetCoverage(const Entity& entity) const override;
30
31 // |FilterInput|
32 void PopulateGlyphAtlas(
33 const std::shared_ptr<LazyGlyphAtlas>& lazy_glyph_atlas,
34 Scalar scale) override;
35
36 private:
37 Rect coverage_rect_;
38
39 friend FilterInput;
40 };
41
42 } // namespace impeller
43
44 #endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_FILTERS_INPUTS_PLACEHOLDER_FILTER_INPUT_H_
impeller::PlaceholderFilterInput::PopulateGlyphAtlas
void PopulateGlyphAtlas(const std::shared_ptr< LazyGlyphAtlas > &lazy_glyph_atlas, Scalar scale) override
Definition: placeholder_filter_input.cc:37
impeller::Scalar
float Scalar
Definition: scalar.h:18
impeller::PlaceholderFilterInput::GetInput
Variant GetInput() const override
Definition: placeholder_filter_input.cc:19
impeller::PlaceholderFilterInput::GetSnapshot
std::optional< Snapshot > GetSnapshot(const std::string &label, const ContentContext &renderer, const Entity &entity, std::optional< Rect > coverage_limit, int32_t mip_count=1) const override
Definition: placeholder_filter_input.cc:23
impeller::PlaceholderFilterInput::PlaceholderFilterInput
PlaceholderFilterInput(Rect coverage)
Definition: placeholder_filter_input.cc:14
impeller::Entity
Definition: entity.h:21
impeller::PlaceholderFilterInput::GetCoverage
std::optional< Rect > GetCoverage(const Entity &entity) const override
Definition: placeholder_filter_input.cc:32
impeller::FilterInput
Definition: filter_input.h:30
impeller::PlaceholderFilterInput::~PlaceholderFilterInput
~PlaceholderFilterInput() 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
scale
const Scalar scale
Definition: stroke_path_geometry.cc:297
impeller
Definition: aiks_blur_unittests.cc:20
impeller::ContentContext
Definition: content_context.h:392
impeller::TRect< Scalar >
impeller::PlaceholderFilterInput
Definition: placeholder_filter_input.h:12