Flutter Impeller
conical_gradient_contents.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_CONICAL_GRADIENT_CONTENTS_H_
6 #define FLUTTER_IMPELLER_ENTITY_CONTENTS_CONICAL_GRADIENT_CONTENTS_H_
7 
8 #include <functional>
9 #include <memory>
10 #include <vector>
11 
12 #include "flutter/fml/macros.h"
14 #include "impeller/entity/entity.h"
17 #include "impeller/geometry/path.h"
19 
20 namespace impeller {
21 
23  public:
25 
26  ~ConicalGradientContents() override;
27 
28  // |Contents|
29  bool Render(const ContentContext& renderer,
30  const Entity& entity,
31  RenderPass& pass) const override;
32 
33  // |Contents|
34  [[nodiscard]] bool ApplyColorFilter(
35  const ColorFilterProc& color_filter_proc) override;
36 
37  void SetCenterAndRadius(Point center, Scalar radius);
38 
39  void SetColors(std::vector<Color> colors);
40 
41  void SetStops(std::vector<Scalar> stops);
42 
43  const std::vector<Color>& GetColors() const;
44 
45  const std::vector<Scalar>& GetStops() const;
46 
47  void SetTileMode(Entity::TileMode tile_mode);
48 
49  void SetFocus(std::optional<Point> focus, Scalar radius);
50 
51  private:
52  bool RenderTexture(const ContentContext& renderer,
53  const Entity& entity,
54  RenderPass& pass) const;
55 
56  bool RenderSSBO(const ContentContext& renderer,
57  const Entity& entity,
58  RenderPass& pass) const;
59  Point center_;
60  Scalar radius_ = 0.0f;
61  std::vector<Color> colors_;
62  std::vector<Scalar> stops_;
63  Entity::TileMode tile_mode_;
64  Color decal_border_color_ = Color::BlackTransparent();
65  std::optional<Point> focus_;
66  Scalar focus_radius_ = 0.0f;
67 
69 
70  ConicalGradientContents& operator=(const ConicalGradientContents&) = delete;
71 };
72 
73 } // namespace impeller
74 
75 #endif // FLUTTER_IMPELLER_ENTITY_CONTENTS_CONICAL_GRADIENT_CONTENTS_H_
path.h
impeller::ConicalGradientContents::GetStops
const std::vector< Scalar > & GetStops() const
Definition: conical_gradient_contents.cc:42
point.h
impeller::Scalar
float Scalar
Definition: scalar.h:18
entity.h
impeller::Color
Definition: color.h:124
impeller::ConicalGradientContents::SetColors
void SetColors(std::vector< Color > colors)
Definition: conical_gradient_contents.cc:30
impeller::ConicalGradientContents::SetFocus
void SetFocus(std::optional< Point > focus, Scalar radius)
Definition: conical_gradient_contents.cc:46
impeller::ConicalGradientContents::SetCenterAndRadius
void SetCenterAndRadius(Point center, Scalar radius)
Definition: conical_gradient_contents.cc:21
impeller::ConicalGradientContents::ConicalGradientContents
ConicalGradientContents()
gradient.h
impeller::Entity
Definition: entity.h:21
impeller::ConicalGradientContents
Definition: conical_gradient_contents.h:22
color_source_contents.h
impeller::Contents::ColorFilterProc
std::function< Color(Color)> ColorFilterProc
Definition: contents.h:38
impeller::ConicalGradientContents::Render
bool Render(const ContentContext &renderer, const Entity &entity, RenderPass &pass) const override
Definition: conical_gradient_contents.cc:52
impeller::ConicalGradientContents::SetStops
void SetStops(std::vector< Scalar > stops)
Definition: conical_gradient_contents.cc:34
impeller::Entity::TileMode
TileMode
Definition: entity.h:42
impeller::ConicalGradientContents::~ConicalGradientContents
~ConicalGradientContents() override
impeller::RenderPass
Render passes encode render commands directed as one specific render target into an underlying comman...
Definition: render_pass.h:33
impeller::ConicalGradientContents::GetColors
const std::vector< Color > & GetColors() const
Definition: conical_gradient_contents.cc:38
impeller::TPoint< Scalar >
impeller::Color::BlackTransparent
static constexpr Color BlackTransparent()
Definition: color.h:262
color.h
impeller::ConicalGradientContents::SetTileMode
void SetTileMode(Entity::TileMode tile_mode)
Definition: conical_gradient_contents.cc:26
impeller::ColorSourceContents
Definition: color_source_contents.h:36
impeller
Definition: aiks_blur_unittests.cc:20
impeller::ConicalGradientContents::ApplyColorFilter
bool ApplyColorFilter(const ColorFilterProc &color_filter_proc) override
If possible, applies a color filter to this contents inputs on the CPU.
Definition: conical_gradient_contents.cc:169
impeller::ContentContext
Definition: content_context.h:392