| // 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. |
| |
| #ifndef FLUTTER_LIB_UI_PAINTING_DISPLAY_LIST_DEFERRED_IMAGE_GPU_IMPELLER_H_ |
| #define FLUTTER_LIB_UI_PAINTING_DISPLAY_LIST_DEFERRED_IMAGE_GPU_IMPELLER_H_ |
| |
| #include "flutter/common/graphics/texture.h" |
| #include "flutter/display_list/image/dl_image.h" |
| #include "flutter/flow/layers/layer_tree.h" |
| #include "flutter/fml/macros.h" |
| #include "flutter/fml/memory/weak_ptr.h" |
| #include "flutter/fml/task_runner.h" |
| #include "flutter/lib/ui/snapshot_delegate.h" |
| #include "impeller/core/texture.h" |
| |
| namespace flutter { |
| |
| class DlDeferredImageGPUImpeller final : public DlImage { |
| public: |
| static sk_sp<DlDeferredImageGPUImpeller> Make( |
| std::unique_ptr<LayerTree> layer_tree, |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate, |
| fml::RefPtr<fml::TaskRunner> raster_task_runner); |
| |
| static sk_sp<DlDeferredImageGPUImpeller> Make( |
| sk_sp<DisplayList> display_list, |
| const SkISize& size, |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate, |
| fml::RefPtr<fml::TaskRunner> raster_task_runner); |
| |
| // |DlImage| |
| ~DlDeferredImageGPUImpeller() override; |
| |
| // |DlImage| |
| sk_sp<SkImage> skia_image() const override; |
| |
| // |DlImage| |
| std::shared_ptr<impeller::Texture> impeller_texture() const override; |
| |
| // |DlImage| |
| bool isOpaque() const override; |
| |
| // |DlImage| |
| bool isTextureBacked() const override; |
| |
| // |DlImage| |
| bool isUIThreadSafe() const override; |
| |
| // |DlImage| |
| SkISize dimensions() const override; |
| |
| // |DlImage| |
| size_t GetApproximateByteSize() const override; |
| |
| // |DlImage| |
| OwningContext owning_context() const override { |
| return OwningContext::kRaster; |
| } |
| |
| private: |
| class ImageWrapper final : public std::enable_shared_from_this<ImageWrapper>, |
| public ContextListener { |
| public: |
| ~ImageWrapper(); |
| |
| static std::shared_ptr<ImageWrapper> Make( |
| sk_sp<DisplayList> display_list, |
| const SkISize& size, |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate, |
| fml::RefPtr<fml::TaskRunner> raster_task_runner); |
| |
| static std::shared_ptr<ImageWrapper> Make( |
| std::unique_ptr<LayerTree> layer_tree, |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate, |
| fml::RefPtr<fml::TaskRunner> raster_task_runner); |
| |
| bool isTextureBacked() const; |
| |
| const std::shared_ptr<impeller::Texture> texture() const { |
| return texture_; |
| } |
| |
| const SkISize size() const { return size_; } |
| |
| std::optional<std::string> get_error(); |
| |
| private: |
| SkISize size_; |
| sk_sp<DisplayList> display_list_; |
| std::shared_ptr<impeller::Texture> texture_; |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate_; |
| fml::RefPtr<fml::TaskRunner> raster_task_runner_; |
| std::shared_ptr<TextureRegistry> texture_registry_; |
| |
| mutable std::mutex error_mutex_; |
| std::optional<std::string> error_; |
| |
| ImageWrapper( |
| sk_sp<DisplayList> display_list, |
| const SkISize& size, |
| fml::TaskRunnerAffineWeakPtr<SnapshotDelegate> snapshot_delegate, |
| fml::RefPtr<fml::TaskRunner> raster_task_runner); |
| |
| // If a layer tree is provided, it will be flattened during the raster |
| // thread task spawned by this method. After being flattened into a display |
| // list, the image wrapper will be updated to hold this display list and the |
| // layer tree can be dropped. |
| void SnapshotDisplayList(std::unique_ptr<LayerTree> layer_tree = nullptr); |
| |
| // |ContextListener| |
| void OnGrContextCreated() override; |
| |
| // |ContextListener| |
| void OnGrContextDestroyed() override; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(ImageWrapper); |
| }; |
| |
| const std::shared_ptr<ImageWrapper> wrapper_; |
| |
| explicit DlDeferredImageGPUImpeller(std::shared_ptr<ImageWrapper> wrapper); |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(DlDeferredImageGPUImpeller); |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_LIB_UI_PAINTING_DISPLAY_LIST_DEFERRED_IMAGE_GPU_IMPELLER_H_ |