/* -*- 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/. */

include LayersSurfaces;
include LayersMessages;
include protocol PTexture;

include "mozilla/GfxMessageUtils.h";
include "mozilla/layers/LayersMessageUtils.h";

using mozilla::dom::ContentParentId from "mozilla/dom/ipc/IdType.h";
using mozilla::layers::TextureFlags from "mozilla/layers/CompositorTypes.h";
using mozilla::void_t from "mozilla/ipc/IPCCore.h";

namespace mozilla {
namespace layers {

/**
 * The PVideoBridge protocol is used to share textures from the video decoders
 * to the compositor.
 */
[NeedsOtherPid, ParentProc=compositor, ChildProc=any]
sync protocol PVideoBridge
{
  manages PTexture;

child:
  async Ping() returns (void_t ok);

parent:
  /**
   * Since PVideoBridge creates textures on behalf of another process, we also
   * supply ContentParentId of the owning content process.
   */
  async PTexture(SurfaceDescriptor aSharedData, ReadLockDescriptor aReadLock, LayersBackend aBackend,
                 TextureFlags aTextureFlags, ContentParentId aContentId, uint64_t aSerial);
};

} // namespace
} // namespace