| // 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 <memory> |
| #include <optional> |
| #include "impeller/entity/contents/filters/filter_contents.h" |
| #include "impeller/entity/contents/filters/inputs/filter_input.h" |
| |
| namespace impeller { |
| |
| class DirectionalGaussianBlurFilterContents final : public FilterContents { |
| public: |
| DirectionalGaussianBlurFilterContents(); |
| |
| ~DirectionalGaussianBlurFilterContents() override; |
| |
| void SetSigma(Sigma sigma); |
| |
| void SetSecondarySigma(Sigma sigma); |
| |
| void SetDirection(Vector2 direction); |
| |
| void SetBlurStyle(BlurStyle blur_style); |
| |
| void SetTileMode(Entity::TileMode tile_mode); |
| |
| void SetSourceOverride(FilterInput::Ref alpha_mask); |
| |
| // |FilterContents| |
| std::optional<Rect> GetFilterCoverage( |
| const FilterInput::Vector& inputs, |
| const Entity& entity, |
| const Matrix& effect_transform) const override; |
| |
| private: |
| // |FilterContents| |
| std::optional<Entity> RenderFilter( |
| const FilterInput::Vector& input_textures, |
| const ContentContext& renderer, |
| const Entity& entity, |
| const Matrix& effect_transform, |
| const Rect& coverage, |
| const std::optional<Rect>& coverage_hint) const override; |
| Sigma blur_sigma_; |
| Sigma secondary_blur_sigma_; |
| Vector2 blur_direction_; |
| BlurStyle blur_style_ = BlurStyle::kNormal; |
| Entity::TileMode tile_mode_ = Entity::TileMode::kDecal; |
| bool src_color_factor_ = false; |
| bool inner_blur_factor_ = true; |
| bool outer_blur_factor_ = true; |
| FilterInput::Ref source_override_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(DirectionalGaussianBlurFilterContents); |
| }; |
| |
| } // namespace impeller |