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/* -*- 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_dom_media_RemoteImageHolder_h
#define mozilla_dom_media_RemoteImageHolder_h
#include "MediaData.h"
#include "ipc/IPCMessageUtils.h"
#include "mozilla/Maybe.h"
#include "mozilla/RefPtr.h"
#include "mozilla/layers/LayersSurfaces.h"
#include "mozilla/layers/VideoBridgeUtils.h"
namespace mozilla {
namespace layers {
class BufferRecycleBin;
class IGPUVideoSurfaceManager;
class SurfaceDescriptor;
} // namespace layers
class RemoteImageHolder final {
friend struct ipc::IPDLParamTraits<RemoteImageHolder>;
public:
RemoteImageHolder();
RemoteImageHolder(layers::IGPUVideoSurfaceManager* aManager,
layers::VideoBridgeSource aSource,
const gfx::IntSize& aSize,
const gfx::ColorDepth& aColorDepth,
const layers::SurfaceDescriptor& aSD);
RemoteImageHolder(RemoteImageHolder&& aOther);
// Ensure we never copy this object.
RemoteImageHolder(const RemoteImageHolder& aOther) = delete;
RemoteImageHolder& operator=(const RemoteImageHolder& aOther) = delete;
~RemoteImageHolder();
bool IsEmpty() const { return mSD.isNothing(); }
// Move content of RemoteImageHolder into a usable Image. Ownership is
// transfered to that Image.
already_AddRefed<layers::Image> TransferToImage(
layers::BufferRecycleBin* aBufferRecycleBin = nullptr);
private:
already_AddRefed<layers::Image> DeserializeImage(
layers::BufferRecycleBin* aBufferRecycleBin);
// We need a default for the default constructor, never used in practice.
layers::VideoBridgeSource mSource = layers::VideoBridgeSource::GpuProcess;
gfx::IntSize mSize;
gfx::ColorDepth mColorDepth = gfx::ColorDepth::COLOR_8;
Maybe<layers::SurfaceDescriptor> mSD;
RefPtr<layers::IGPUVideoSurfaceManager> mManager;
};
template <>
struct ipc::IPDLParamTraits<RemoteImageHolder> {
static void Write(IPC::MessageWriter* aWriter, IProtocol* aActor,
RemoteImageHolder&& aParam);
static bool Read(IPC::MessageReader* aReader, IProtocol* aActor,
RemoteImageHolder* aResult);
};
} // namespace mozilla
#endif // mozilla_dom_media_RemoteImageHolder_h
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