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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
/* 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 */
include "mozilla/layers/LayersMessageUtils.h";
include protocol PCanvas;
include protocol PWebGL;
include protocol PWebGPU;
using mozilla::layers::RemoteTextureOwnerId from "mozilla/layers/LayersTypes.h";
using mozilla::webgl::FrontBufferSnapshotIpc from "mozilla/dom/WebGLIpdl.h";
namespace mozilla {
namespace gfx {
* The PCanvasManager protocol is the top-level protocol between the main and
* worker threads in the content process, and the renderer thread in the
* compositor process. This protocol should be used to create accelerated
* canvas instances.
[NeedsOtherPid, ParentProc=compositor, ChildProc=anydom]
sync protocol PCanvasManager
manages PCanvas;
manages PWebGL;
manages PWebGPU;
async PCanvas();
// Actor that represents one WebGL context.
async PWebGL();
// Actor that represents one WebGPU context.
async PWebGPU();
// Set the local manager ID for the canvas manager.
async Initialize(uint32_t aManagerId);
// Get the front buffer pixels for the given manager/protocol. This is
// intended to be used by the main thread in the content process to block
// reading without having to block on the worker thread that owns the context
// instance.
sync GetSnapshot(uint32_t aManagerId, int32_t aProtocolId, RemoteTextureOwnerId? ownerId) returns (FrontBufferSnapshotIpc ret);
} // gfx
} // mozilla