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_SHELL_COMMON_SHELL_IO_MANAGER_H_ |
6 | #define FLUTTER_SHELL_COMMON_SHELL_IO_MANAGER_H_ |
7 | |
8 | #include <memory> |
9 | |
10 | #include "flutter/flow/skia_gpu_object.h" |
11 | #include "flutter/fml/macros.h" |
12 | #include "flutter/fml/memory/weak_ptr.h" |
13 | #include "flutter/lib/ui/io_manager.h" |
14 | #include "third_party/skia/include/gpu/GrDirectContext.h" |
15 | |
16 | namespace flutter { |
17 | |
18 | class ShellIOManager final : public IOManager { |
19 | public: |
20 | // Convenience methods for platforms to create a GrDirectContext used to |
21 | // supply to the IOManager. The platforms may create the context themselves if |
22 | // they so desire. |
23 | static sk_sp<GrDirectContext> CreateCompatibleResourceLoadingContext( |
24 | GrBackend backend, |
25 | sk_sp<const GrGLInterface> gl_interface); |
26 | |
27 | ShellIOManager(sk_sp<GrDirectContext> resource_context, |
28 | std::shared_ptr<fml::SyncSwitch> is_gpu_disabled_sync_switch, |
29 | fml::RefPtr<fml::TaskRunner> unref_queue_task_runner); |
30 | |
31 | ~ShellIOManager() override; |
32 | |
33 | // This method should be called when a resource_context first becomes |
34 | // available. It is safe to call multiple times, and will only update |
35 | // the held resource context if it has not already been set. |
36 | void NotifyResourceContextAvailable(sk_sp<GrDirectContext> resource_context); |
37 | |
38 | // This method should be called if you want to force the IOManager to |
39 | // update its resource context reference. It should not be called |
40 | // if there are any Dart objects that have a reference to the old |
41 | // resource context, but may be called if the Dart VM is restarted. |
42 | void UpdateResourceContext(sk_sp<GrDirectContext> resource_context); |
43 | |
44 | fml::WeakPtr<ShellIOManager> GetWeakPtr(); |
45 | |
46 | // |IOManager| |
47 | fml::WeakPtr<IOManager> GetWeakIOManager() const override; |
48 | |
49 | // |IOManager| |
50 | fml::WeakPtr<GrDirectContext> GetResourceContext() const override; |
51 | |
52 | // |IOManager| |
53 | fml::RefPtr<flutter::SkiaUnrefQueue> GetSkiaUnrefQueue() const override; |
54 | |
55 | // |IOManager| |
56 | std::shared_ptr<fml::SyncSwitch> GetIsGpuDisabledSyncSwitch() override; |
57 | |
58 | private: |
59 | // Resource context management. |
60 | sk_sp<GrDirectContext> resource_context_; |
61 | std::unique_ptr<fml::WeakPtrFactory<GrDirectContext>> |
62 | resource_context_weak_factory_; |
63 | |
64 | // Unref queue management. |
65 | fml::RefPtr<flutter::SkiaUnrefQueue> unref_queue_; |
66 | |
67 | fml::WeakPtrFactory<ShellIOManager> weak_factory_; |
68 | |
69 | std::shared_ptr<fml::SyncSwitch> is_gpu_disabled_sync_switch_; |
70 | |
71 | FML_DISALLOW_COPY_AND_ASSIGN(ShellIOManager); |
72 | }; |
73 | |
74 | } // namespace flutter |
75 | |
76 | #endif // FLUTTER_SHELL_COMMON_SHELL_IO_MANAGER_H_ |
77 |