/* 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/. */

using mozilla::webgpu::RawId from "mozilla/webgpu/WebGPUTypes.h";
using mozilla::webgpu::ExternalTextureSourceDescriptor from "mozilla/webgpu/WebGPUTypes.h";
[MoveOnly] using mozilla::ipc::MutableSharedMemoryHandle from "mozilla/ipc/SharedMemoryHandle.h";

include "mozilla/ipc/ByteBufUtils.h";
include "mozilla/layers/LayersMessageUtils.h";
include "mozilla/layers/WebRenderMessageUtils.h";
include protocol PCanvasManager;

namespace mozilla {
namespace webgpu {

/**
 * Represents the connection between a WebGPUChild actor that issues WebGPU
 * command from the content process, and a WebGPUParent in the compositor
 * process that runs the commands.
 */
async protocol PWebGPU
{
  manager PCanvasManager;

parent:
  async Messages(uint32_t nrOfMessages, ByteBuf serializedMessages, ByteBuf[] dataBuffers, MutableSharedMemoryHandle[] shmems);

  // Ideally this would be sent in Messages(), but we need to implement
  // SurfaceDescriptor serialization first.
  async CreateExternalTextureSource(
    RawId deviceId,
    RawId queueId,
    RawId externalTextureSourceId,
    ExternalTextureSourceDescriptor aDesc
  );


child:
  async ServerMessage(ByteBuf buf);

  async __delete__();
};

} // webgpu
} // mozilla