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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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
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