1 files changed, 90 insertions, 0 deletions
diff --git a/gfx/layers/ipc/VideoBridgeChild.h b/gfx/layers/ipc/VideoBridgeChild.h
new file mode 100644
index 0000000000..b72289e4b6
--- /dev/null
+++ b/gfx/layers/ipc/VideoBridgeChild.h
@@ -0,0 +1,90 @@
+/* -*- 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/. */
+
+#ifndef MOZILLA_GFX_VIDEOBRIDGECHILD_H
+#define MOZILLA_GFX_VIDEOBRIDGECHILD_H
+
+#include "mozilla/layers/PVideoBridgeChild.h"
+#include "mozilla/layers/VideoBridgeUtils.h"
+#include "ISurfaceAllocator.h"
+#include "TextureForwarder.h"
+
+namespace mozilla {
+namespace layers {
+
+class SynchronousTask;
+
+class VideoBridgeChild final : public PVideoBridgeChild,
+                               public TextureForwarder {
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VideoBridgeChild, override);
+
+  static void StartupForGPUProcess();
+  static void Shutdown();
+
+  static VideoBridgeChild* GetSingleton();
+
+  // PVideoBridgeChild
+  PTextureChild* AllocPTextureChild(const SurfaceDescriptor& aSharedData,
+                                    ReadLockDescriptor& aReadLock,
+                                    const LayersBackend& aLayersBackend,
+                                    const TextureFlags& aFlags,
+                                    const dom::ContentParentId& aContentId,
+                                    const uint64_t& aSerial);
+  bool DeallocPTextureChild(PTextureChild* actor);
+
+  mozilla::ipc::IPCResult RecvPing(PingResolver&& aResolver);
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+
+  // ISurfaceAllocator
+  bool AllocUnsafeShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
+  bool AllocShmem(size_t aSize, mozilla::ipc::Shmem* aShmem) override;
+  bool DeallocShmem(mozilla::ipc::Shmem& aShmem) override;
+
+  // TextureForwarder
+  PTextureChild* CreateTexture(
+      const SurfaceDescriptor& aSharedData, ReadLockDescriptor&& aReadLock,
+      LayersBackend aLayersBackend, TextureFlags aFlags,
+      const dom::ContentParentId& aContentId, uint64_t aSerial,
+      wr::MaybeExternalImageId& aExternalImageId) override;
+
+  // ClientIPCAllocator
+  base::ProcessId GetParentPid() const override { return OtherPid(); }
+  nsISerialEventTarget* GetThread() const override { return mThread; }
+  void CancelWaitForNotifyNotUsed(uint64_t aTextureId) override {
+    MOZ_ASSERT(false, "NO RECYCLING HERE");
+  }
+
+  // ISurfaceAllocator
+  bool IsSameProcess() const override;
+
+  bool CanSend() { return mCanSend; }
+
+  static void Open(Endpoint<PVideoBridgeChild>&& aEndpoint);
+
+ protected:
+  void HandleFatalError(const char* aMsg) override;
+  bool DispatchAllocShmemInternal(size_t aSize, mozilla::ipc::Shmem* aShmem,
+                                  bool aUnsafe);
+  void ProxyAllocShmemNow(SynchronousTask* aTask, size_t aSize,
+                          mozilla::ipc::Shmem* aShmem, bool aUnsafe,
+                          bool* aSuccess);
+  void ProxyDeallocShmemNow(SynchronousTask* aTask, mozilla::ipc::Shmem* aShmem,
+                            bool* aResult);
+
+ private:
+  VideoBridgeChild();
+  virtual ~VideoBridgeChild();
+
+  nsCOMPtr<nsISerialEventTarget> mThread;
+  bool mCanSend;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif