зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
2.6 KiB
Plaintext
74 строки
2.6 KiB
Plaintext
/* -*- 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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include protocol PCompositorBridge;
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using struct mozilla::void_t from "ipc/IPCMessageUtils.h";
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using mozilla::TimeDuration from "mozilla/TimeStamp.h";
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using mozilla::CSSToLayoutDeviceScale from "Units.h";
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using mozilla::gfx::IntSize from "mozilla/gfx/2D.h";
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using mozilla::layers::CompositorOptions from "mozilla/layers/CompositorOptions.h";
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namespace mozilla {
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namespace layers {
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struct WidgetCompositorOptions {
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CSSToLayoutDeviceScale scale;
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TimeDuration vsyncRate;
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CompositorOptions options;
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bool useExternalSurfaceSize;
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IntSize surfaceSize;
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};
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struct ContentCompositorOptions {
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};
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struct SameProcessWidgetCompositorOptions {
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};
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union CompositorBridgeOptions {
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ContentCompositorOptions;
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WidgetCompositorOptions;
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SameProcessWidgetCompositorOptions;
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};
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/**
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* The PCompositorManager protocol is the top-level protocol between the
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* compositor thread and the creators of compositors. It exists in the
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* following conditions:
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* - One PCompositorManager between the GPU process and each content process.
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* If the GPU/UI processes are combined, there is one PCompositorManager
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* between the combined GPU/UI process and each content process.
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* - One PCompositorManager between the GPU process and the UI process. If
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* they are combined, there is still one PCompositorManager, but both the
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* child and parent live in the same process.
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* The intention for this protocol is to facilitate communication with the
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* compositor thread for compositor data that is only shared once, rather than
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* per PCompositorBridge instance.
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*/
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sync protocol PCompositorManager
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{
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manages PCompositorBridge;
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parent:
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/**
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* There are three variants of a PCompositorBridge protocol, each of which can
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* only be created by certain processes and configurations:
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* - A "content" PCompositorBridge is requested by each content process,
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* representing the drawable area for Web content.
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* - A "widget" PCompositorBridge is requested by the UI process for each
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* "top level browser window" for chrome and such.
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* - A "same process widget" PCompositorBridge is requested by the combined
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* GPU/UI process for each "top level browser window" as above.
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* See gfx/layers/ipc/PCompositorBridge.ipdl for more details.
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*/
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async PCompositorBridge(CompositorBridgeOptions options);
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};
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} // layers
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} // mozilla
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