Name Description Size
CanvasClient.cpp 3485
CanvasClient.h Compositable client for 2d and webgl canvas. 2372
CompositableClient.cpp 5651
CompositableClient.h CompositableClient manages the texture-specific logic for composite layers, independently of the layer. It is the content side of a CompositableClient/ CompositableHost pair. CompositableClient's purpose is to send texture data to the compositor side along with any extra information about how the texture is to be composited. Things like opacity or transformation belong to layer and not compositable. Since Compositables are independent of layers it is possible to create one, connect it to the compositor side, and start sending images to it. This alone is arguably not very useful, but it means that as long as a shadow layer can do the proper magic to find a reference to the right CompositableHost on the Compositor side, a Compositable client can be used outside of the main shadow layer forwarder machinery that is used on the main thread. The first step is to create a Compositable client and call Connect(). Connect() creates the underlying IPDL actor (see CompositableChild) and the corresponding CompositableHost on the other side. To do async texture transfer (like async-video), the CompositableClient should be created with a different CompositableForwarder (like ImageBridgeChild) and attachment is done with CompositableForwarder::AttachAsyncCompositable that takes an identifier instead of a CompositableChild, since the CompositableClient is not managed by this layer forwarder (the matching uses a global map on the compositor side, see CompositableMap in ImageBridgeParent.cpp) Subclasses: Painted layers use ContentClients, ImageLayers use ImageClients, Canvas layers use CanvasClients (but ImageHosts). We have a different subclass where we have a different way of interfacing with the textures - in terms of drawing into the compositable and/or passing its contents to the compostior. 7371
GPUVideoTextureClient.cpp 1982
GPUVideoTextureClient.h 1551
ImageClient.cpp static 9872
ImageClient.h Image clients are used by basic image layers on the content thread, they always match with an ImageHost on the compositor thread. See CompositableClient.h for information on connecting clients to hosts. 3948
TextureClient.cpp TextureChild is the content-side incarnation of the PTexture IPDL actor. TextureChild is used to synchronize a texture client and its corresponding TextureHost if needed (a TextureClient that is not shared with the compositor does not have a TextureChild) During the deallocation phase, a TextureChild may hold its recently destroyed TextureClient's data until the compositor side confirmed that it is safe to deallocte or recycle the it. 56215
TextureClient.h TextureClient is the abstraction that allows us to share data between the content and the compositor side. 27554
TextureClientPool.cpp 10343
TextureClientPool.h Return a TextureClient that is not yet ready to be reused, but will be imminently. 5493
TextureClientRecycleAllocator.cpp 9559
TextureClientRecycleAllocator.h TextureClientRecycleAllocator provides TextureClients allocation and recycling capabilities. It expects allocations of same sizes and attributres. If a recycled TextureClient is different from requested one, the recycled one is dropped and new TextureClient is allocated. By default this uses TextureClient::CreateForDrawing to allocate new texture clients. 4647
TextureClientSharedSurface.cpp static 4375
TextureClientSharedSurface.h 2293
TextureRecorded.cpp 4106
TextureRecorded.h 1669