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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 gfx_layers_ipc_ImageBridgeParent_h_
#define gfx_layers_ipc_ImageBridgeParent_h_
#include <stddef.h> // for size_t
#include <stdint.h> // for uint32_t, uint64_t
#include "CompositableTransactionParent.h"
#include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2
#include "mozilla/Attributes.h" // for override
#include "mozilla/ipc/ProtocolUtils.h"
#include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/PImageBridgeParent.h"
#include "nsISupportsImpl.h"
#include "nsTArrayForwardDeclare.h" // for nsTArray
namespace mozilla {
namespace ipc {
class Shmem;
} // namespace ipc
namespace layers {
struct ImageCompositeNotificationInfo;
/**
* ImageBridgeParent is the manager Protocol of async Compositables.
*/
class ImageBridgeParent final : public PImageBridgeParent,
public CompositableParentManager,
public mozilla::ipc::IShmemAllocator {
public:
typedef nsTArray<CompositableOperation> EditArray;
typedef nsTArray<OpDestroy> OpDestroyArray;
protected:
ImageBridgeParent(nsISerialEventTarget* aThread, ProcessId aChildProcessId);
public:
virtual ~ImageBridgeParent();
/**
* Creates the globals of ImageBridgeParent.
*/
static void Setup();
static ImageBridgeParent* CreateSameProcess();
static bool CreateForGPUProcess(Endpoint<PImageBridgeParent>&& aEndpoint);
static bool CreateForContent(Endpoint<PImageBridgeParent>&& aEndpoint);
static void Shutdown();
IShmemAllocator* AsShmemAllocator() override { return this; }
void ActorDestroy(ActorDestroyReason aWhy) override;
// CompositableParentManager
void SendAsyncMessage(
const nsTArray<AsyncParentMessageData>& aMessage) override;
void NotifyNotUsed(PTextureParent* aTexture,
uint64_t aTransactionId) override;
static void NotifyBufferNotUsedOfCompositorBridge(
base::ProcessId aChildProcessId, TextureHost* aTexture,
uint64_t aTransactionId);
void NotifyBufferNotUsedOfCompositorBridge(TextureHost* aTexture,
uint64_t aTransactionId);
base::ProcessId GetChildProcessId() override { return OtherPid(); }
// PImageBridge
mozilla::ipc::IPCResult RecvUpdate(EditArray&& aEdits,
OpDestroyArray&& aToDestroy,
const uint64_t& aFwdTransactionId);
PTextureParent* AllocPTextureParent(
const SurfaceDescriptor& aSharedData, const ReadLockDescriptor& aReadLock,
const LayersBackend& aLayersBackend, const TextureFlags& aFlags,
const uint64_t& aSerial,
const wr::MaybeExternalImageId& aExternalImageId);
bool DeallocPTextureParent(PTextureParent* actor);
mozilla::ipc::IPCResult RecvNewCompositable(
const CompositableHandle& aHandle, const TextureInfo& aInfo,
const LayersBackend& aLayersBackend);
mozilla::ipc::IPCResult RecvReleaseCompositable(
const CompositableHandle& aHandle);
PMediaSystemResourceManagerParent* AllocPMediaSystemResourceManagerParent();
bool DeallocPMediaSystemResourceManagerParent(
PMediaSystemResourceManagerParent* aActor);
// Shutdown step 1
mozilla::ipc::IPCResult RecvWillClose();
nsISerialEventTarget* GetThread() const { return mThread; }
// IShmemAllocator
bool AllocShmem(size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem) override;
bool AllocUnsafeShmem(size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
ipc::Shmem* aShmem) override;
bool DeallocShmem(ipc::Shmem& aShmem) override;
bool IsSameProcess() const override;
static already_AddRefed<ImageBridgeParent> GetInstance(ProcessId aId);
static bool NotifyImageComposites(
nsTArray<ImageCompositeNotificationInfo>& aNotifications);
bool UsesImageBridge() const override { return true; }
bool IPCOpen() const override { return !mClosed; }
// See PluginInstanceParent for details on the Windows async plugin
// rendering protocol.
mozilla::ipc::IPCResult RecvMakeAsyncPluginSurfaces(
SurfaceFormat aFormat, IntSize aSize, SurfaceDescriptorPlugin* aSD);
mozilla::ipc::IPCResult RecvUpdateAsyncPluginSurface(
const SurfaceDescriptorPlugin& aSD);
mozilla::ipc::IPCResult RecvReadbackAsyncPluginSurface(
const SurfaceDescriptorPlugin& aSD, SurfaceDescriptor* aResult);
mozilla::ipc::IPCResult RecvRemoveAsyncPluginSurface(
const SurfaceDescriptorPlugin& aSD, bool aIsFrontSurface);
RefPtr<TextureHost> LookupTextureHost(
const SurfaceDescriptorPlugin& aDescriptor);
protected:
void Bind(Endpoint<PImageBridgeParent>&& aEndpoint);
private:
static void ShutdownInternal();
void DeferredDestroy();
nsCOMPtr<nsISerialEventTarget> mThread;
// This keeps us alive until ActorDestroy(), at which point we do a
// deferred destruction of ourselves.
RefPtr<ImageBridgeParent> mSelfRef;
bool mClosed;
/**
* Map of all living ImageBridgeParent instances
*/
typedef std::map<base::ProcessId, ImageBridgeParent*> ImageBridgeMap;
static ImageBridgeMap sImageBridges;
RefPtr<CompositorThreadHolder> mCompositorThreadHolder;
#if defined(OS_WIN)
// Owns a pair of textures used to double-buffer a plugin async rendering
// instance.
struct PluginTextureDatas {
UniquePtr<D3D11TextureData> mPluginTextureData;
UniquePtr<D3D11TextureData> mDisplayTextureData;
PluginTextureDatas(UniquePtr<D3D11TextureData>&& aPluginTextureData,
UniquePtr<D3D11TextureData>&& aDisplayTextureData);
~PluginTextureDatas();
PluginTextureDatas(const PluginTextureDatas& o) = delete;
PluginTextureDatas& operator=(const PluginTextureDatas& o) = delete;
bool IsValid() { return mPluginTextureData && mDisplayTextureData; }
};
HashMap<WindowsHandle, RefPtr<TextureHost>> mGPUVideoTextureHosts;
HashMap<WindowsHandle, UniquePtr<PluginTextureDatas>> mPluginTextureDatas;
#endif // defined(OS_WIN)
};
} // namespace layers
} // namespace mozilla
#endif // gfx_layers_ipc_ImageBridgeParent_h_
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