| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #pragma once |
| |
| #include "impeller/entity/contents/filters/color_filter_contents.h" |
| #include "impeller/entity/contents/filters/inputs/filter_input.h" |
| |
| namespace impeller { |
| |
| class BlendFilterContents : public ColorFilterContents { |
| public: |
| using AdvancedBlendProc = |
| std::function<std::optional<Entity>(const FilterInput::Vector& inputs, |
| const ContentContext& renderer, |
| const Entity& entity, |
| const Rect& coverage, |
| std::optional<Color> foreground_color, |
| bool absorb_opacity, |
| std::optional<Scalar> alpha)>; |
| |
| BlendFilterContents(); |
| |
| ~BlendFilterContents() override; |
| |
| void SetBlendMode(BlendMode blend_mode); |
| |
| /// @brief Sets a source color which is blended after all of the inputs have |
| /// been blended. |
| void SetForegroundColor(std::optional<Color> color); |
| |
| private: |
| // |FilterContents| |
| std::optional<Entity> RenderFilter(const FilterInput::Vector& inputs, |
| const ContentContext& renderer, |
| const Entity& entity, |
| const Matrix& effect_transform, |
| const Rect& coverage) const override; |
| |
| BlendMode blend_mode_ = BlendMode::kSourceOver; |
| AdvancedBlendProc advanced_blend_proc_; |
| std::optional<Color> foreground_color_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(BlendFilterContents); |
| }; |
| |
| } // namespace impeller |