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cf1e91357b
In the future we're going to want VideoBridge connections from the RDD process into both the parent process and the GPU process. This does the preparation work for unifying the way we create VideoBridges (using Endpoints, required for cross-process connections), and detects which one to use based on where the video will be composited. Differential Revision: https://phabricator.services.mozilla.com/D35968 --HG-- extra : moz-landing-system : lando
131 lines
4.2 KiB
C++
131 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "VideoBridgeChild.h"
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#include "VideoBridgeParent.h"
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#include "CompositorThread.h"
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namespace mozilla {
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namespace layers {
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StaticRefPtr<VideoBridgeChild> sVideoBridgeToParentProcess;
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StaticRefPtr<VideoBridgeChild> sVideoBridgeToGPUProcess;
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/* static */
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void VideoBridgeChild::StartupForGPUProcess() {
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ipc::Endpoint<PVideoBridgeParent> parentPipe;
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ipc::Endpoint<PVideoBridgeChild> childPipe;
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PVideoBridge::CreateEndpoints(base::GetCurrentProcId(),
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base::GetCurrentProcId(), &parentPipe,
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&childPipe);
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VideoBridgeChild::OpenToGPUProcess(std::move(childPipe));
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CompositorThreadHolder::Loop()->PostTask(
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NewRunnableFunction("gfx::VideoBridgeParent::Open",
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&VideoBridgeParent::Open, std::move(parentPipe)));
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}
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void VideoBridgeChild::OpenToParentProcess(
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Endpoint<PVideoBridgeChild>&& aEndpoint) {
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sVideoBridgeToParentProcess = new VideoBridgeChild();
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if (!aEndpoint.Bind(sVideoBridgeToParentProcess)) {
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// We can't recover from this.
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MOZ_CRASH("Failed to bind RemoteDecoderManagerParent to endpoint");
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}
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}
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void VideoBridgeChild::OpenToGPUProcess(
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Endpoint<PVideoBridgeChild>&& aEndpoint) {
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sVideoBridgeToGPUProcess = new VideoBridgeChild();
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if (!aEndpoint.Bind(sVideoBridgeToGPUProcess)) {
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// We can't recover from this.
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MOZ_CRASH("Failed to bind RemoteDecoderManagerParent to endpoint");
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}
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}
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/* static */
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void VideoBridgeChild::Shutdown() {
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if (sVideoBridgeToParentProcess) {
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sVideoBridgeToParentProcess->Close();
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sVideoBridgeToParentProcess = nullptr;
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}
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if (sVideoBridgeToGPUProcess) {
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sVideoBridgeToGPUProcess->Close();
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sVideoBridgeToGPUProcess = nullptr;
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}
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}
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VideoBridgeChild::VideoBridgeChild()
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: mIPDLSelfRef(this),
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mMessageLoop(MessageLoop::current()),
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mCanSend(true) {}
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VideoBridgeChild::~VideoBridgeChild() {}
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VideoBridgeChild* VideoBridgeChild::GetSingletonToParentProcess() {
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return sVideoBridgeToParentProcess;
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}
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VideoBridgeChild* VideoBridgeChild::GetSingletonToGPUProcess() {
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return sVideoBridgeToGPUProcess;
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}
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bool VideoBridgeChild::AllocUnsafeShmem(
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size_t aSize, ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) {
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return PVideoBridgeChild::AllocUnsafeShmem(aSize, aType, aShmem);
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}
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bool VideoBridgeChild::AllocShmem(size_t aSize,
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ipc::SharedMemory::SharedMemoryType aType,
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ipc::Shmem* aShmem) {
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MOZ_ASSERT(CanSend());
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return PVideoBridgeChild::AllocShmem(aSize, aType, aShmem);
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}
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bool VideoBridgeChild::DeallocShmem(ipc::Shmem& aShmem) {
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return PVideoBridgeChild::DeallocShmem(aShmem);
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}
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PTextureChild* VideoBridgeChild::AllocPTextureChild(const SurfaceDescriptor&,
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const ReadLockDescriptor&,
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const LayersBackend&,
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const TextureFlags&,
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const uint64_t& aSerial) {
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MOZ_ASSERT(CanSend());
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return TextureClient::CreateIPDLActor();
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}
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bool VideoBridgeChild::DeallocPTextureChild(PTextureChild* actor) {
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return TextureClient::DestroyIPDLActor(actor);
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}
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void VideoBridgeChild::ActorDestroy(ActorDestroyReason aWhy) {
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mCanSend = false;
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}
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void VideoBridgeChild::ActorDealloc() { mIPDLSelfRef = nullptr; }
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PTextureChild* VideoBridgeChild::CreateTexture(
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const SurfaceDescriptor& aSharedData, const ReadLockDescriptor& aReadLock,
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LayersBackend aLayersBackend, TextureFlags aFlags, uint64_t aSerial,
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wr::MaybeExternalImageId& aExternalImageId, nsIEventTarget* aTarget) {
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MOZ_ASSERT(CanSend());
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return SendPTextureConstructor(aSharedData, aReadLock, aLayersBackend, aFlags,
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aSerial);
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}
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bool VideoBridgeChild::IsSameProcess() const {
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return OtherPid() == base::GetCurrentProcId();
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}
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} // namespace layers
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} // namespace mozilla
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