Add m-esr52 at 52.6.0

1 files changed, 72 insertions, 0 deletions

diff --git a/gfx/layers/ipc/VideoBridgeParent.h b/gfx/layers/ipc/VideoBridgeParent.h
new file mode 100644
index 000000000..e5560acab
--- /dev/null
+++ b/gfx/layers/ipc/VideoBridgeParent.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 gfx_layers_ipc_VideoBridgeParent_h_
+#define gfx_layers_ipc_VideoBridgeParent_h_
+
+#include "mozilla/layers/PVideoBridgeParent.h"
+
+namespace mozilla {
+namespace layers {
+
+class VideoBridgeParent final : public PVideoBridgeParent,
+                                public HostIPCAllocator,
+                                public ShmemAllocator
+{
+public:
+  VideoBridgeParent();
+  ~VideoBridgeParent();
+
+  static VideoBridgeParent* GetSingleton();
+  TextureHost* LookupTexture(uint64_t aSerial);
+
+  // PVideoBridgeParent
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+  PTextureParent* AllocPTextureParent(const SurfaceDescriptor& aSharedData,
+                                      const LayersBackend& aLayersBackend,
+                                      const TextureFlags& aFlags,
+                                      const uint64_t& aSerial) override;
+  bool DeallocPTextureParent(PTextureParent* actor) override;
+
+  // HostIPCAllocator
+  base::ProcessId GetChildProcessId() override
+  {
+    return OtherPid();
+  }
+  void NotifyNotUsed(PTextureParent* aTexture, uint64_t aTransactionId) override;
+  void SendAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessage) override;
+
+  // ISurfaceAllocator
+  ShmemAllocator* AsShmemAllocator() override { return this; }
+  bool IsSameProcess() const override;
+  bool IPCOpen() const override { return !mClosed; }
+
+  // ShmemAllocator
+  bool AllocShmem(size_t aSize,
+                  ipc::SharedMemory::SharedMemoryType aType,
+                  ipc::Shmem* aShmem) override;
+
+  bool AllocUnsafeShmem(size_t aSize,
+                        ipc::SharedMemory::SharedMemoryType aType,
+                        ipc::Shmem* aShmem) override;
+
+  void DeallocShmem(ipc::Shmem& aShmem) override;
+
+private:
+  void DeallocPVideoBridgeParent() override;
+
+  // This keeps us alive until ActorDestroy(), at which point we do a
+  // deferred destruction of ourselves.
+  RefPtr<VideoBridgeParent> mSelfRef;
+
+  std::map<uint64_t, PTextureParent*> mTextureMap;
+
+  bool mClosed;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // gfx_layers_ipc_VideoBridgeParent_h_