summaryrefslogtreecommitdiffstats
path: root/gfx/layers/ipc/VideoBridgeParent.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--gfx/layers/ipc/VideoBridgeParent.cpp233
1 files changed, 233 insertions, 0 deletions
diff --git a/gfx/layers/ipc/VideoBridgeParent.cpp b/gfx/layers/ipc/VideoBridgeParent.cpp
new file mode 100644
index 0000000000..89cc85aee3
--- /dev/null
+++ b/gfx/layers/ipc/VideoBridgeParent.cpp
@@ -0,0 +1,233 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+#include "VideoBridgeParent.h"
+#include "CompositorThread.h"
+#include "mozilla/DataMutex.h"
+#include "mozilla/ipc/Endpoint.h"
+#include "mozilla/layers/TextureHost.h"
+#include "mozilla/layers/VideoBridgeUtils.h"
+#include "mozilla/webrender/RenderThread.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace mozilla::ipc;
+using namespace mozilla::gfx;
+
+using VideoBridgeTable =
+ EnumeratedArray<VideoBridgeSource, VideoBridgeSource::_Count,
+ VideoBridgeParent*>;
+
+static StaticDataMutex<VideoBridgeTable> sVideoBridgeFromProcess(
+ "VideoBridges");
+static Atomic<bool> sVideoBridgeParentShutDown(false);
+
+VideoBridgeParent::VideoBridgeParent(VideoBridgeSource aSource)
+ : mCompositorThreadHolder(CompositorThreadHolder::GetSingleton()),
+ mClosed(false) {
+ auto videoBridgeFromProcess = sVideoBridgeFromProcess.Lock();
+ switch (aSource) {
+ case VideoBridgeSource::RddProcess:
+ case VideoBridgeSource::GpuProcess:
+ case VideoBridgeSource::MFMediaEngineCDMProcess:
+ (*videoBridgeFromProcess)[aSource] = this;
+ break;
+ default:
+ MOZ_CRASH("Unhandled case");
+ }
+}
+
+VideoBridgeParent::~VideoBridgeParent() {
+ auto videoBridgeFromProcess = sVideoBridgeFromProcess.Lock();
+ for (auto& bridgeParent : *videoBridgeFromProcess) {
+ if (bridgeParent == this) {
+ bridgeParent = nullptr;
+ }
+ }
+}
+
+/* static */
+void VideoBridgeParent::Open(Endpoint<PVideoBridgeParent>&& aEndpoint,
+ VideoBridgeSource aSource) {
+ RefPtr<VideoBridgeParent> parent = new VideoBridgeParent(aSource);
+
+ CompositorThread()->Dispatch(
+ NewRunnableMethod<Endpoint<PVideoBridgeParent>&&>(
+ "gfx::layers::VideoBridgeParent::Bind", parent,
+ &VideoBridgeParent::Bind, std::move(aEndpoint)));
+}
+
+void VideoBridgeParent::Bind(Endpoint<PVideoBridgeParent>&& aEndpoint) {
+ if (!aEndpoint.Bind(this)) {
+ // We can't recover from this.
+ MOZ_CRASH("Failed to bind VideoBridgeParent to endpoint");
+ }
+}
+
+/* static */
+VideoBridgeParent* VideoBridgeParent::GetSingleton(
+ const Maybe<VideoBridgeSource>& aSource) {
+ MOZ_ASSERT(aSource.isSome());
+ auto videoBridgeFromProcess = sVideoBridgeFromProcess.Lock();
+ switch (aSource.value()) {
+ case VideoBridgeSource::RddProcess:
+ case VideoBridgeSource::GpuProcess:
+ case VideoBridgeSource::MFMediaEngineCDMProcess:
+ MOZ_ASSERT((*videoBridgeFromProcess)[aSource.value()]);
+ return (*videoBridgeFromProcess)[aSource.value()];
+ default:
+ MOZ_CRASH("Unhandled case");
+ }
+}
+
+TextureHost* VideoBridgeParent::LookupTexture(
+ const dom::ContentParentId& aContentId, uint64_t aSerial) {
+ MOZ_DIAGNOSTIC_ASSERT(CompositorThread() &&
+ CompositorThread()->IsOnCurrentThread());
+ auto* actor = mTextureMap[aSerial];
+ if (NS_WARN_IF(!actor)) {
+ return nullptr;
+ }
+
+ if (NS_WARN_IF(aContentId != TextureHost::GetTextureContentId(actor))) {
+ return nullptr;
+ }
+
+ return TextureHost::AsTextureHost(mTextureMap[aSerial]);
+}
+
+void VideoBridgeParent::ActorDestroy(ActorDestroyReason aWhy) {
+ bool shutdown = sVideoBridgeParentShutDown;
+
+ if (!shutdown && aWhy == AbnormalShutdown) {
+ gfxCriticalNote
+ << "VideoBridgeParent receives IPC close with reason=AbnormalShutdown";
+ }
+ // Can't alloc/dealloc shmems from now on.
+ mClosed = true;
+
+ mCompositorThreadHolder = nullptr;
+ ReleaseCompositorThread();
+}
+
+/* static */
+void VideoBridgeParent::Shutdown() {
+ sVideoBridgeParentShutDown = true;
+
+ auto videoBridgeFromProcess = sVideoBridgeFromProcess.Lock();
+ for (auto& bridgeParent : *videoBridgeFromProcess) {
+ if (bridgeParent) {
+ bridgeParent->ReleaseCompositorThread();
+ }
+ }
+}
+
+/* static */
+void VideoBridgeParent::UnregisterExternalImages() {
+ MOZ_ASSERT(sVideoBridgeParentShutDown);
+
+ auto videoBridgeFromProcess = sVideoBridgeFromProcess.Lock();
+ for (auto& bridgeParent : *videoBridgeFromProcess) {
+ if (bridgeParent) {
+ bridgeParent->DoUnregisterExternalImages();
+ }
+ }
+}
+
+void VideoBridgeParent::DoUnregisterExternalImages() {
+ const ManagedContainer<PTextureParent>& textures = ManagedPTextureParent();
+ for (const auto& key : textures) {
+ RefPtr<TextureHost> texture = TextureHost::AsTextureHost(key);
+
+ if (texture) {
+ texture->MaybeDestroyRenderTexture();
+ }
+ }
+}
+
+void VideoBridgeParent::ReleaseCompositorThread() {
+ mCompositorThreadHolder = nullptr;
+}
+
+PTextureParent* VideoBridgeParent::AllocPTextureParent(
+ const SurfaceDescriptor& aSharedData, ReadLockDescriptor& aReadLock,
+ const LayersBackend& aLayersBackend, const TextureFlags& aFlags,
+ const dom::ContentParentId& aContentId, const uint64_t& aSerial) {
+ PTextureParent* parent = TextureHost::CreateIPDLActor(
+ this, aSharedData, std::move(aReadLock), aLayersBackend, aFlags,
+ aContentId, aSerial, Nothing());
+
+ if (!parent) {
+ return nullptr;
+ }
+
+ mTextureMap[aSerial] = parent;
+ return parent;
+}
+
+bool VideoBridgeParent::DeallocPTextureParent(PTextureParent* actor) {
+ mTextureMap.erase(TextureHost::GetTextureSerial(actor));
+ return TextureHost::DestroyIPDLActor(actor);
+}
+
+void VideoBridgeParent::SendAsyncMessage(
+ const nsTArray<AsyncParentMessageData>& aMessage) {
+ MOZ_ASSERT(false, "AsyncMessages not supported");
+}
+
+bool VideoBridgeParent::AllocShmem(size_t aSize, ipc::Shmem* aShmem) {
+ if (mClosed) {
+ return false;
+ }
+ return PVideoBridgeParent::AllocShmem(aSize, aShmem);
+}
+
+bool VideoBridgeParent::AllocUnsafeShmem(size_t aSize, ipc::Shmem* aShmem) {
+ if (mClosed) {
+ return false;
+ }
+ return PVideoBridgeParent::AllocUnsafeShmem(aSize, aShmem);
+}
+
+bool VideoBridgeParent::DeallocShmem(ipc::Shmem& aShmem) {
+ if (mClosed) {
+ return false;
+ }
+ return PVideoBridgeParent::DeallocShmem(aShmem);
+}
+
+bool VideoBridgeParent::IsSameProcess() const {
+ return OtherPid() == base::GetCurrentProcId();
+}
+
+void VideoBridgeParent::NotifyNotUsed(PTextureParent* aTexture,
+ uint64_t aTransactionId) {}
+
+void VideoBridgeParent::OnChannelError() {
+ bool shutdown = sVideoBridgeParentShutDown;
+ if (!shutdown) {
+ // Destory RenderBufferTextureHosts. Shmems of ShmemTextureHosts are going
+ // to be destroyed
+ std::vector<wr::ExternalImageId> ids;
+ auto& ptextures = ManagedPTextureParent();
+ for (const auto& ptexture : ptextures) {
+ RefPtr<TextureHost> texture = TextureHost::AsTextureHost(ptexture);
+ if (texture && texture->AsShmemTextureHost() &&
+ texture->GetMaybeExternalImageId().isSome()) {
+ ids.emplace_back(texture->GetMaybeExternalImageId().ref());
+ }
+ }
+ if (!ids.empty()) {
+ wr::RenderThread::Get()->DestroyExternalImagesSyncWait(std::move(ids));
+ }
+ }
+
+ PVideoBridgeParent::OnChannelError();
+}
+
+} // namespace layers
+} // namespace mozilla