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gaaclarke
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_SHELL_COMMON_SHELL_IO_MANAGER_H_
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#define FLUTTER_SHELL_COMMON_SHELL_IO_MANAGER_H_
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#include <memory>
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#include "flutter/flow/skia_gpu_object.h"
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#include "flutter/fml/macros.h"
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#include "flutter/fml/memory/weak_ptr.h"
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#include "flutter/lib/ui/io_manager.h"
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#include "third_party/skia/include/gpu/GrContext.h"
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namespace flutter {
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class ShellIOManager final : public IOManager {
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public:
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// Convenience methods for platforms to create a GrContext used to supply to
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// the IOManager. The platforms may create the context themselves if they so
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// desire.
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static sk_sp<GrContext> CreateCompatibleResourceLoadingContext(
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GrBackend backend,
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sk_sp<const GrGLInterface> gl_interface);
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ShellIOManager(sk_sp<GrContext> resource_context,
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std::shared_ptr<fml::SyncSwitch> is_gpu_disabled_sync_switch,
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fml::RefPtr<fml::TaskRunner> unref_queue_task_runner);
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~ShellIOManager() override;
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// This method should be called when a resource_context first becomes
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// available. It is safe to call multiple times, and will only update
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// the held resource context if it has not already been set.
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void NotifyResourceContextAvailable(sk_sp<GrContext> resource_context);
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// This method should be called if you want to force the IOManager to
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// update its resource context reference. It should not be called
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// if there are any Dart objects that have a reference to the old
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// resource context, but may be called if the Dart VM is restarted.
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void UpdateResourceContext(sk_sp<GrContext> resource_context);
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fml::WeakPtr<ShellIOManager> GetWeakPtr();
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// |IOManager|
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fml::WeakPtr<IOManager> GetWeakIOManager() const override;
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// |IOManager|
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fml::WeakPtr<GrContext> GetResourceContext() const override;
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// |IOManager|
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fml::RefPtr<flutter::SkiaUnrefQueue> GetSkiaUnrefQueue() const override;
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// |IOManager|
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std::shared_ptr<fml::SyncSwitch> GetIsGpuDisabledSyncSwitch() override;
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private:
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// Resource context management.
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sk_sp<GrContext> resource_context_;
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std::unique_ptr<fml::WeakPtrFactory<GrContext>>
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resource_context_weak_factory_;
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// Unref queue management.
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fml::RefPtr<flutter::SkiaUnrefQueue> unref_queue_;
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fml::WeakPtrFactory<ShellIOManager> weak_factory_;
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std::shared_ptr<fml::SyncSwitch> is_gpu_disabled_sync_switch_;
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FML_DISALLOW_COPY_AND_ASSIGN(ShellIOManager);
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};
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} // namespace flutter
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#endif // FLUTTER_SHELL_COMMON_SHELL_IO_MANAGER_H_
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