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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_CrossProcessCompositorBridgeParent_h
#define mozilla_layers_CrossProcessCompositorBridgeParent_h
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layers/CompositorThread.h"
namespace mozilla {
namespace layers {
/**
* This class handles layer updates pushed directly from child processes to
* the compositor thread. It's associated with a CompositorBridgeParent on the
* compositor thread. While it uses the PCompositorBridge protocol to manage
* these updates, it doesn't actually drive compositing itself. For that it
* hands off work to the CompositorBridgeParent it's associated with.
*/
class CrossProcessCompositorBridgeParent final : public CompositorBridgeParentBase
{
friend class CompositorBridgeParent;
public:
explicit CrossProcessCompositorBridgeParent()
: mNotifyAfterRemotePaint(false)
, mDestroyCalled(false)
{
MOZ_ASSERT(NS_IsMainThread());
}
void Bind(Endpoint<PCompositorBridgeParent>&& aEndpoint) {
if (!aEndpoint.Bind(this)) {
return;
}
mSelfRef = this;
}
virtual void ActorDestroy(ActorDestroyReason aWhy) override;
// FIXME/bug 774388: work out what shutdown protocol we need.
virtual bool RecvInitialize(const uint64_t& aRootLayerTreeId) override { return false; }
virtual bool RecvReset(nsTArray<LayersBackend>&& aBackendHints, bool* aResult, TextureFactoryIdentifier* aOutIdentifier) override { return false; }
virtual bool RecvRequestOverfill() override { return true; }
virtual bool RecvWillClose() override { return true; }
virtual bool RecvPause() override { return true; }
virtual bool RecvResume() override { return true; }
virtual bool RecvNotifyChildCreated(const uint64_t& child) override;
virtual bool RecvNotifyChildRecreated(const uint64_t& child) override { return false; }
virtual bool RecvAdoptChild(const uint64_t& child) override { return false; }
virtual bool RecvMakeSnapshot(const SurfaceDescriptor& aInSnapshot,
const gfx::IntRect& aRect) override
{ return true; }
virtual bool RecvFlushRendering() override { return true; }
virtual bool RecvForcePresent() override { return true; }
virtual bool RecvNotifyRegionInvalidated(const nsIntRegion& aRegion) override { return true; }
virtual bool RecvClearApproximatelyVisibleRegions(const uint64_t& aLayersId,
const uint32_t& aPresShellId) override;
virtual bool RecvNotifyApproximatelyVisibleRegion(const ScrollableLayerGuid& aGuid,
const CSSIntRegion& aRegion) override;
virtual bool RecvAllPluginsCaptured() override { return true; }
virtual bool RecvGetFrameUniformity(FrameUniformityData* aOutData) override
{
// Don't support calculating frame uniformity on the child process and
// this is just a stub for now.
MOZ_ASSERT(false);
return true;
}
/**
* Tells this CompositorBridgeParent to send a message when the compositor has received the transaction.
*/
virtual bool RecvRequestNotifyAfterRemotePaint() override;
virtual PLayerTransactionParent*
AllocPLayerTransactionParent(const nsTArray<LayersBackend>& aBackendHints,
const uint64_t& aId,
TextureFactoryIdentifier* aTextureFactoryIdentifier,
bool *aSuccess) override;
virtual bool DeallocPLayerTransactionParent(PLayerTransactionParent* aLayers) override;
virtual void ShadowLayersUpdated(LayerTransactionParent* aLayerTree,
const uint64_t& aTransactionId,
const TargetConfig& aTargetConfig,
const InfallibleTArray<PluginWindowData>& aPlugins,
bool aIsFirstPaint,
bool aScheduleComposite,
uint32_t aPaintSequenceNumber,
bool aIsRepeatTransaction,
int32_t /*aPaintSyncId: unused*/,
bool aHitTestUpdate) override;
virtual void ForceComposite(LayerTransactionParent* aLayerTree) override;
virtual void NotifyClearCachedResources(LayerTransactionParent* aLayerTree) override;
virtual bool SetTestSampleTime(LayerTransactionParent* aLayerTree,
const TimeStamp& aTime) override;
virtual void LeaveTestMode(LayerTransactionParent* aLayerTree) override;
virtual void ApplyAsyncProperties(LayerTransactionParent* aLayerTree)
override;
virtual void FlushApzRepaints(const LayerTransactionParent* aLayerTree) override;
virtual void GetAPZTestData(const LayerTransactionParent* aLayerTree,
APZTestData* aOutData) override;
virtual void SetConfirmedTargetAPZC(const LayerTransactionParent* aLayerTree,
const uint64_t& aInputBlockId,
const nsTArray<ScrollableLayerGuid>& aTargets) override;
virtual AsyncCompositionManager* GetCompositionManager(LayerTransactionParent* aParent) override;
virtual bool RecvRemotePluginsReady() override { return false; }
virtual bool RecvAcknowledgeCompositorUpdate(const uint64_t& aLayersId) override;
void DidComposite(uint64_t aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd);
virtual PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData,
const LayersBackend& aLayersBackend,
const TextureFlags& aFlags,
const uint64_t& aId,
const uint64_t& aSerial) override;
virtual bool DeallocPTextureParent(PTextureParent* actor) override;
virtual bool IsSameProcess() const override;
PCompositorWidgetParent* AllocPCompositorWidgetParent(const CompositorWidgetInitData& aInitData) override {
// Not allowed.
return nullptr;
}
bool DeallocPCompositorWidgetParent(PCompositorWidgetParent* aActor) override {
// Not allowed.
return false;
}
virtual bool RecvAsyncPanZoomEnabled(const uint64_t& aLayersId, bool* aHasAPZ) override;
virtual PAPZCTreeManagerParent* AllocPAPZCTreeManagerParent(const uint64_t& aLayersId) override;
virtual bool DeallocPAPZCTreeManagerParent(PAPZCTreeManagerParent* aActor) override;
virtual PAPZParent* AllocPAPZParent(const uint64_t& aLayersId) override;
virtual bool DeallocPAPZParent(PAPZParent* aActor) override;
virtual void UpdatePaintTime(LayerTransactionParent* aLayerTree, const TimeDuration& aPaintTime) override;
protected:
void OnChannelConnected(int32_t pid) override {
mCompositorThreadHolder = CompositorThreadHolder::GetSingleton();
}
private:
// Private destructor, to discourage deletion outside of Release():
virtual ~CrossProcessCompositorBridgeParent();
void DeferredDestroy();
// There can be many CPCPs, and IPDL-generated code doesn't hold a
// reference to top-level actors. So we hold a reference to
// ourself. This is released (deferred) in ActorDestroy().
RefPtr<CrossProcessCompositorBridgeParent> mSelfRef;
RefPtr<CompositorThreadHolder> mCompositorThreadHolder;
// If true, we should send a RemotePaintIsReady message when the layer transaction
// is received
bool mNotifyAfterRemotePaint;
bool mDestroyCalled;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_layers_CrossProcessCompositorBridgeParent_h
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