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-rw-r--r--dom/media/ipc/VideoDecoderManagerChild.h96
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diff --git a/dom/media/ipc/VideoDecoderManagerChild.h b/dom/media/ipc/VideoDecoderManagerChild.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=99: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef include_dom_ipc_VideoDecoderManagerChild_h
+#define include_dom_ipc_VideoDecoderManagerChild_h
+
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/PVideoDecoderManagerChild.h"
+
+namespace mozilla {
+namespace gfx {
+class SourceSurface;
+}
+namespace dom {
+
+class VideoDecoderManagerChild final : public PVideoDecoderManagerChild
+ , public mozilla::ipc::IShmemAllocator
+{
+public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VideoDecoderManagerChild)
+
+ // Can only be called from the manager thread
+ static VideoDecoderManagerChild* GetSingleton();
+
+ // Can be called from any thread.
+ static nsIThread* GetManagerThread();
+ static AbstractThread* GetManagerAbstractThread();
+
+ // Can be called from any thread, dispatches the request to the IPDL thread internally
+ // and will be ignored if the IPDL actor has been destroyed.
+ already_AddRefed<gfx::SourceSurface> Readback(const SurfaceDescriptorGPUVideo& aSD);
+ void DeallocateSurfaceDescriptorGPUVideo(const SurfaceDescriptorGPUVideo& aSD);
+
+ bool AllocShmem(size_t aSize,
+ mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
+ mozilla::ipc::Shmem* aShmem) override
+ {
+ return PVideoDecoderManagerChild::AllocShmem(aSize, aShmType, aShmem);
+ }
+ bool AllocUnsafeShmem(size_t aSize,
+ mozilla::ipc::SharedMemory::SharedMemoryType aShmType,
+ mozilla::ipc::Shmem* aShmem) override
+ {
+ return PVideoDecoderManagerChild::AllocUnsafeShmem(aSize, aShmType, aShmem);
+ }
+
+ // Can be called from any thread, dispatches the request to the IPDL thread internally
+ // and will be ignored if the IPDL actor has been destroyed.
+ bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
+
+ // Main thread only
+ static void InitForContent(Endpoint<PVideoDecoderManagerChild>&& aVideoManager);
+ static void Shutdown();
+
+ // Run aTask (on the manager thread) when we next attempt to create a new manager
+ // (even if creation fails). Intended to be called from ActorDestroy when we get
+ // notified that the old manager is being destroyed.
+ // Can only be called from the manager thread.
+ void RunWhenRecreated(already_AddRefed<Runnable> aTask);
+
+ bool CanSend();
+
+protected:
+ void InitIPDL();
+
+ void ActorDestroy(ActorDestroyReason aWhy) override;
+ void DeallocPVideoDecoderManagerChild() override;
+
+ void HandleFatalError(const char* aName, const char* aMsg) const override;
+
+ PVideoDecoderChild* AllocPVideoDecoderChild() override;
+ bool DeallocPVideoDecoderChild(PVideoDecoderChild* actor) override;
+
+private:
+ // Main thread only
+ static void InitializeThread();
+
+ VideoDecoderManagerChild()
+ : mCanSend(false)
+ {}
+ ~VideoDecoderManagerChild() {}
+
+ static void Open(Endpoint<PVideoDecoderManagerChild>&& aEndpoint);
+
+ RefPtr<VideoDecoderManagerChild> mIPDLSelfRef;
+
+ // Should only ever be accessed on the manager thread.
+ bool mCanSend;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // include_dom_ipc_VideoDecoderManagerChild_h