mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
120 lines
4.2 KiB
C++
120 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set sw=2 ts=8 et 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 mozilla_layers_CompositorChild_h
|
|
#define mozilla_layers_CompositorChild_h
|
|
|
|
#include "base/basictypes.h" // for DISALLOW_EVIL_CONSTRUCTORS
|
|
#include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2
|
|
#include "mozilla/Attributes.h" // for MOZ_OVERRIDE
|
|
#include "mozilla/ipc/ProtocolUtils.h"
|
|
#include "mozilla/layers/PCompositorChild.h"
|
|
#include "nsAutoPtr.h" // for nsRefPtr
|
|
#include "nsClassHashtable.h" // for nsClassHashtable
|
|
#include "nsCOMPtr.h" // for nsCOMPtr
|
|
#include "nsHashKeys.h" // for nsUint64HashKey
|
|
#include "nsISupportsImpl.h" // for NS_INLINE_DECL_REFCOUNTING
|
|
|
|
class nsIObserver;
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class ClientLayerManager;
|
|
class CompositorParent;
|
|
class FrameMetrics;
|
|
|
|
class CompositorChild : public PCompositorChild
|
|
{
|
|
NS_INLINE_DECL_REFCOUNTING(CompositorChild)
|
|
public:
|
|
CompositorChild(ClientLayerManager *aLayerManager);
|
|
virtual ~CompositorChild();
|
|
|
|
void Destroy();
|
|
|
|
/**
|
|
* Lookup the FrameMetrics shared by the compositor process with the
|
|
* associated FrameMetrics::ViewID. The returned FrameMetrics is used
|
|
* in progressive paint calculations.
|
|
*/
|
|
bool LookupCompositorFrameMetrics(const FrameMetrics::ViewID aId, FrameMetrics&);
|
|
|
|
/**
|
|
* We're asked to create a new Compositor in response to an Opens()
|
|
* or Bridge() request from our parent process. The Transport is to
|
|
* the compositor's context.
|
|
*/
|
|
static PCompositorChild*
|
|
Create(Transport* aTransport, ProcessId aOtherProcess);
|
|
|
|
static CompositorChild* Get();
|
|
|
|
static bool ChildProcessHasCompositor() { return sCompositor != nullptr; }
|
|
|
|
virtual bool RecvInvalidateAll() MOZ_OVERRIDE;
|
|
|
|
protected:
|
|
virtual PLayerTransactionChild*
|
|
AllocPLayerTransactionChild(const nsTArray<LayersBackend>& aBackendHints,
|
|
const uint64_t& aId,
|
|
TextureFactoryIdentifier* aTextureFactoryIdentifier,
|
|
bool* aSuccess) MOZ_OVERRIDE;
|
|
|
|
virtual bool DeallocPLayerTransactionChild(PLayerTransactionChild *aChild) MOZ_OVERRIDE;
|
|
|
|
virtual void ActorDestroy(ActorDestroyReason aWhy) MOZ_OVERRIDE;
|
|
|
|
virtual bool RecvSharedCompositorFrameMetrics(const mozilla::ipc::SharedMemoryBasic::Handle& metrics,
|
|
const CrossProcessMutexHandle& handle,
|
|
const uint32_t& aAPZCId) MOZ_OVERRIDE;
|
|
|
|
virtual bool RecvReleaseSharedCompositorFrameMetrics(const ViewID& aId,
|
|
const uint32_t& aAPZCId) MOZ_OVERRIDE;
|
|
|
|
private:
|
|
// Class used to store the shared FrameMetrics, mutex, and APZCId in a hash table
|
|
class SharedFrameMetricsData {
|
|
public:
|
|
SharedFrameMetricsData(
|
|
const mozilla::ipc::SharedMemoryBasic::Handle& metrics,
|
|
const CrossProcessMutexHandle& handle,
|
|
const uint32_t& aAPZCId);
|
|
|
|
~SharedFrameMetricsData();
|
|
|
|
void CopyFrameMetrics(FrameMetrics* aFrame);
|
|
FrameMetrics::ViewID GetViewID();
|
|
uint32_t GetAPZCId();
|
|
|
|
private:
|
|
// Pointer to the class that allows access to the shared memory that contains
|
|
// the shared FrameMetrics
|
|
mozilla::ipc::SharedMemoryBasic* mBuffer;
|
|
CrossProcessMutex* mMutex;
|
|
// Unique ID of the APZC that is sharing the FrameMetrics
|
|
uint32_t mAPZCId;
|
|
};
|
|
|
|
nsRefPtr<ClientLayerManager> mLayerManager;
|
|
|
|
// The ViewID of the FrameMetrics is used as the key for this hash table.
|
|
// While this should be safe to use since the ViewID is unique
|
|
nsClassHashtable<nsUint64HashKey, SharedFrameMetricsData> mFrameMetricsTable;
|
|
|
|
// When we're in a child process, this is the process-global
|
|
// compositor that we use to forward transactions directly to the
|
|
// compositor context in another process.
|
|
static CompositorChild* sCompositor;
|
|
|
|
DISALLOW_EVIL_CONSTRUCTORS(CompositorChild);
|
|
};
|
|
|
|
} // layers
|
|
} // mozilla
|
|
|
|
#endif // mozilla_layers_CompositorChild_h
|