gfx/layers/ipc/LayerTransactionParent.h@b8a032363ba2 (annotated)
gfx/layers/ipc/LayerTransactionParent.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * vim: sw=2 ts=8 et : |
| michael@0 | 3 | */ |
| michael@0 | 4 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 5 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 6 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef MOZILLA_LAYERS_LAYERTRANSACTIONPARENT_H |
| michael@0 | 9 | #define MOZILLA_LAYERS_LAYERTRANSACTIONPARENT_H |
| michael@0 | 10 | |
| michael@0 | 11 | #include <stddef.h> // for size_t |
| michael@0 | 12 | #include <stdint.h> // for uint64_t, uint32_t |
| michael@0 | 13 | #include "CompositableTransactionParent.h" |
| michael@0 | 14 | #include "mozilla/Attributes.h" // for MOZ_OVERRIDE |
| michael@0 | 15 | #include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc |
| michael@0 | 16 | #include "mozilla/layers/PLayerTransactionParent.h" |
| michael@0 | 17 | #include "nsAutoPtr.h" // for nsRefPtr |
| michael@0 | 18 | #include "nsTArrayForwardDeclare.h" // for InfallibleTArray |
| michael@0 | 19 | |
| michael@0 | 20 | class gfx3DMatrix; |
| michael@0 | 21 | |
| michael@0 | 22 | namespace mozilla { |
| michael@0 | 23 | |
| michael@0 | 24 | namespace ipc { |
| michael@0 | 25 | class Shmem; |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | namespace layout { |
| michael@0 | 29 | class RenderFrameParent; |
| michael@0 | 30 | } |
| michael@0 | 31 | |
| michael@0 | 32 | namespace layers { |
| michael@0 | 33 | |
| michael@0 | 34 | class Layer; |
| michael@0 | 35 | class LayerManagerComposite; |
| michael@0 | 36 | class ShadowLayerParent; |
| michael@0 | 37 | class CompositableParent; |
| michael@0 | 38 | class ShadowLayersManager; |
| michael@0 | 39 | |
| michael@0 | 40 | class LayerTransactionParent : public PLayerTransactionParent, |
| michael@0 | 41 | public CompositableParentManager |
| michael@0 | 42 | { |
| michael@0 | 43 | typedef mozilla::layout::RenderFrameParent RenderFrameParent; |
| michael@0 | 44 | typedef InfallibleTArray<Edit> EditArray; |
| michael@0 | 45 | typedef InfallibleTArray<EditReply> EditReplyArray; |
| michael@0 | 46 | |
| michael@0 | 47 | public: |
| michael@0 | 48 | LayerTransactionParent(LayerManagerComposite* aManager, |
| michael@0 | 49 | ShadowLayersManager* aLayersManager, |
| michael@0 | 50 | uint64_t aId); |
| michael@0 | 51 | ~LayerTransactionParent(); |
| michael@0 | 52 | |
| michael@0 | 53 | void Destroy(); |
| michael@0 | 54 | |
| michael@0 | 55 | LayerManagerComposite* layer_manager() const { return mLayerManager; } |
| michael@0 | 56 | |
| michael@0 | 57 | uint64_t GetId() const { return mId; } |
| michael@0 | 58 | Layer* GetRoot() const { return mRoot; } |
| michael@0 | 59 | |
| michael@0 | 60 | // ISurfaceAllocator |
| michael@0 | 61 | virtual bool AllocShmem(size_t aSize, |
| michael@0 | 62 | ipc::SharedMemory::SharedMemoryType aType, |
| michael@0 | 63 | ipc::Shmem* aShmem) { |
| michael@0 | 64 | return PLayerTransactionParent::AllocShmem(aSize, aType, aShmem); |
| michael@0 | 65 | } |
| michael@0 | 66 | |
| michael@0 | 67 | virtual bool AllocUnsafeShmem(size_t aSize, |
| michael@0 | 68 | ipc::SharedMemory::SharedMemoryType aType, |
| michael@0 | 69 | ipc::Shmem* aShmem) { |
| michael@0 | 70 | return PLayerTransactionParent::AllocUnsafeShmem(aSize, aType, aShmem); |
| michael@0 | 71 | } |
| michael@0 | 72 | |
| michael@0 | 73 | virtual void DeallocShmem(ipc::Shmem& aShmem) MOZ_OVERRIDE |
| michael@0 | 74 | { |
| michael@0 | 75 | PLayerTransactionParent::DeallocShmem(aShmem); |
| michael@0 | 76 | } |
| michael@0 | 77 | |
| michael@0 | 78 | virtual LayersBackend GetCompositorBackendType() const MOZ_OVERRIDE; |
| michael@0 | 79 | |
| michael@0 | 80 | virtual bool IsSameProcess() const MOZ_OVERRIDE; |
| michael@0 | 81 | |
| michael@0 | 82 | protected: |
| michael@0 | 83 | virtual bool RecvUpdate(const EditArray& cset, |
| michael@0 | 84 | const TargetConfig& targetConfig, |
| michael@0 | 85 | const bool& isFirstPaint, |
| michael@0 | 86 | const bool& scheduleComposite, |
| michael@0 | 87 | EditReplyArray* reply) MOZ_OVERRIDE; |
| michael@0 | 88 | |
| michael@0 | 89 | virtual bool RecvUpdateNoSwap(const EditArray& cset, |
| michael@0 | 90 | const TargetConfig& targetConfig, |
| michael@0 | 91 | const bool& isFirstPaint, |
| michael@0 | 92 | const bool& scheduleComposite) MOZ_OVERRIDE; |
| michael@0 | 93 | |
| michael@0 | 94 | virtual bool RecvClearCachedResources() MOZ_OVERRIDE; |
| michael@0 | 95 | virtual bool RecvForceComposite() MOZ_OVERRIDE; |
| michael@0 | 96 | virtual bool RecvSetTestSampleTime(const TimeStamp& aTime) MOZ_OVERRIDE; |
| michael@0 | 97 | virtual bool RecvLeaveTestMode() MOZ_OVERRIDE; |
| michael@0 | 98 | virtual bool RecvGetOpacity(PLayerParent* aParent, |
| michael@0 | 99 | float* aOpacity) MOZ_OVERRIDE; |
| michael@0 | 100 | virtual bool RecvGetAnimationTransform(PLayerParent* aParent, |
| michael@0 | 101 | MaybeTransform* aTransform) |
| michael@0 | 102 | MOZ_OVERRIDE; |
| michael@0 | 103 | virtual bool RecvSetAsyncScrollOffset(PLayerParent* aLayer, |
| michael@0 | 104 | const int32_t& aX, const int32_t& aY) MOZ_OVERRIDE; |
| michael@0 | 105 | |
| michael@0 | 106 | virtual PGrallocBufferParent* |
| michael@0 | 107 | AllocPGrallocBufferParent(const IntSize& aSize, |
| michael@0 | 108 | const uint32_t& aFormat, const uint32_t& aUsage, |
| michael@0 | 109 | MaybeMagicGrallocBufferHandle* aOutHandle) MOZ_OVERRIDE; |
| michael@0 | 110 | virtual bool |
| michael@0 | 111 | DeallocPGrallocBufferParent(PGrallocBufferParent* actor) MOZ_OVERRIDE; |
| michael@0 | 112 | |
| michael@0 | 113 | virtual PLayerParent* AllocPLayerParent() MOZ_OVERRIDE; |
| michael@0 | 114 | virtual bool DeallocPLayerParent(PLayerParent* actor) MOZ_OVERRIDE; |
| michael@0 | 115 | |
| michael@0 | 116 | virtual PCompositableParent* AllocPCompositableParent(const TextureInfo& aInfo) MOZ_OVERRIDE; |
| michael@0 | 117 | virtual bool DeallocPCompositableParent(PCompositableParent* actor) MOZ_OVERRIDE; |
| michael@0 | 118 | |
| michael@0 | 119 | virtual PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData, |
| michael@0 | 120 | const TextureFlags& aFlags) MOZ_OVERRIDE; |
| michael@0 | 121 | virtual bool DeallocPTextureParent(PTextureParent* actor) MOZ_OVERRIDE; |
| michael@0 | 122 | |
| michael@0 | 123 | bool Attach(ShadowLayerParent* aLayerParent, |
| michael@0 | 124 | CompositableHost* aCompositable, |
| michael@0 | 125 | bool aIsAsyncVideo); |
| michael@0 | 126 | |
| michael@0 | 127 | void AddIPDLReference() { |
| michael@0 | 128 | MOZ_ASSERT(mIPCOpen == false); |
| michael@0 | 129 | mIPCOpen = true; |
| michael@0 | 130 | AddRef(); |
| michael@0 | 131 | } |
| michael@0 | 132 | void ReleaseIPDLReference() { |
| michael@0 | 133 | MOZ_ASSERT(mIPCOpen == true); |
| michael@0 | 134 | mIPCOpen = false; |
| michael@0 | 135 | Release(); |
| michael@0 | 136 | } |
| michael@0 | 137 | friend class CompositorParent; |
| michael@0 | 138 | friend class CrossProcessCompositorParent; |
| michael@0 | 139 | friend class layout::RenderFrameParent; |
| michael@0 | 140 | |
| michael@0 | 141 | private: |
| michael@0 | 142 | nsRefPtr<LayerManagerComposite> mLayerManager; |
| michael@0 | 143 | ShadowLayersManager* mShadowLayersManager; |
| michael@0 | 144 | // Hold the root because it might be grafted under various |
| michael@0 | 145 | // containers in the "real" layer tree |
| michael@0 | 146 | nsRefPtr<Layer> mRoot; |
| michael@0 | 147 | // When this is nonzero, it refers to a layer tree owned by the |
| michael@0 | 148 | // compositor thread. It is always true that |
| michael@0 | 149 | // mId != 0 => mRoot == null |
| michael@0 | 150 | // because the "real tree" is owned by the compositor. |
| michael@0 | 151 | uint64_t mId; |
| michael@0 | 152 | // When the widget/frame/browser stuff in this process begins its |
| michael@0 | 153 | // destruction process, we need to Disconnect() all the currently |
| michael@0 | 154 | // live shadow layers, because some of them might be orphaned from |
| michael@0 | 155 | // the layer tree. This happens in Destroy() above. After we |
| michael@0 | 156 | // Destroy() ourself, there's a window in which that information |
| michael@0 | 157 | // hasn't yet propagated back to the child side and it might still |
| michael@0 | 158 | // send us layer transactions. We want to ignore those transactions |
| michael@0 | 159 | // because they refer to "zombie layers" on this side. So, we track |
| michael@0 | 160 | // that state with |mDestroyed|. This is similar to, but separate |
| michael@0 | 161 | // from, |mLayerManager->IsDestroyed()|; we might have had Destroy() |
| michael@0 | 162 | // called on us but the mLayerManager might not be destroyed, or |
| michael@0 | 163 | // vice versa. In both cases though, we want to ignore shadow-layer |
| michael@0 | 164 | // transactions posted by the child. |
| michael@0 | 165 | bool mDestroyed; |
| michael@0 | 166 | |
| michael@0 | 167 | bool mIPCOpen; |
| michael@0 | 168 | }; |
| michael@0 | 169 | |
| michael@0 | 170 | } // namespace layers |
| michael@0 | 171 | } // namespace mozilla |
| michael@0 | 172 | |
| michael@0 | 173 | #endif // MOZILLA_LAYERS_LAYERTRANSACTIONPARENT_H |
