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125 lines
4.4 KiB
C++
125 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layers_ShadowLayersParent_h
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#define mozilla_layers_ShadowLayersParent_h
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#include "mozilla/layers/PLayersParent.h"
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#include "ShadowLayers.h"
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#include "ShadowLayersManager.h"
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#include "CompositableTransactionParent.h"
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namespace mozilla {
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namespace layout {
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class RenderFrameParent;
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}
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namespace layers {
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class Layer;
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class ShadowLayerManager;
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class ShadowLayerParent;
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class CompositableParent;
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class ShadowLayersParent : public PLayersParent,
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public CompositableParentManager
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{
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typedef mozilla::layout::RenderFrameParent RenderFrameParent;
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typedef InfallibleTArray<Edit> EditArray;
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typedef InfallibleTArray<EditReply> EditReplyArray;
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public:
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ShadowLayersParent(ShadowLayerManager* aManager,
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ShadowLayersManager* aLayersManager,
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uint64_t aId);
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~ShadowLayersParent();
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void Destroy();
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ShadowLayerManager* layer_manager() const { return mLayerManager; }
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uint64_t GetId() const { return mId; }
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ContainerLayer* GetRoot() const { return mRoot; }
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// ISurfaceAllocator
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virtual bool AllocShmem(size_t aSize,
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ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) {
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return PLayersParent::AllocShmem(aSize, aType, aShmem);
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}
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virtual bool AllocUnsafeShmem(size_t aSize,
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ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) {
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return PLayersParent::AllocUnsafeShmem(aSize, aType, aShmem);
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}
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virtual void DeallocShmem(ipc::Shmem& aShmem) MOZ_OVERRIDE
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{
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PLayersParent::DeallocShmem(aShmem);
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}
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protected:
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virtual bool RecvUpdate(const EditArray& cset,
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const TargetConfig& targetConfig,
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const bool& isFirstPaint,
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EditReplyArray* reply) MOZ_OVERRIDE;
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virtual bool RecvUpdateNoSwap(const EditArray& cset,
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const TargetConfig& targetConfig,
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const bool& isFirstPaint) MOZ_OVERRIDE;
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virtual bool RecvClearCachedResources() MOZ_OVERRIDE;
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virtual PGrallocBufferParent*
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AllocPGrallocBuffer(const gfxIntSize& aSize, const gfxContentType& aContent,
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MaybeMagicGrallocBufferHandle* aOutHandle) MOZ_OVERRIDE;
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virtual bool
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DeallocPGrallocBuffer(PGrallocBufferParent* actor) MOZ_OVERRIDE;
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virtual PLayerParent* AllocPLayer() MOZ_OVERRIDE;
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virtual bool DeallocPLayer(PLayerParent* actor) MOZ_OVERRIDE;
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virtual PCompositableParent* AllocPCompositable(const TextureInfo& aInfo) MOZ_OVERRIDE;
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virtual bool DeallocPCompositable(PCompositableParent* actor) MOZ_OVERRIDE;
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void Attach(ShadowLayerParent* aLayerParent, CompositableParent* aCompositable);
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private:
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nsRefPtr<ShadowLayerManager> mLayerManager;
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ShadowLayersManager* mShadowLayersManager;
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// Hold the root because it might be grafted under various
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// containers in the "real" layer tree
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nsRefPtr<ContainerLayer> mRoot;
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// When this is nonzero, it refers to a layer tree owned by the
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// compositor thread. It is always true that
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// mId != 0 => mRoot == null
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// because the "real tree" is owned by the compositor.
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uint64_t mId;
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// When the widget/frame/browser stuff in this process begins its
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// destruction process, we need to Disconnect() all the currently
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// live shadow layers, because some of them might be orphaned from
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// the layer tree. This happens in Destroy() above. After we
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// Destroy() ourself, there's a window in which that information
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// hasn't yet propagated back to the child side and it might still
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// send us layer transactions. We want to ignore those transactions
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// because they refer to "zombie layers" on this side. So, we track
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// that state with |mDestroyed|. This is similar to, but separate
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// from, |mLayerManager->IsDestroyed()|; we might have had Destroy()
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// called on us but the mLayerManager might not be destroyed, or
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// vice versa. In both cases though, we want to ignore shadow-layer
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// transactions posted by the child.
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bool mDestroyed;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // ifndef mozilla_layers_ShadowLayersParent_h
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