cc/ipc/begin_frame_args_struct_traits.cc

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/ipc/begin_frame_args_struct_traits.h"
#include "ipc/ipc_message_utils.h"
#include "mojo/common/common_custom_types_struct_traits.h"

namespace mojo {

// static
bool StructTraits<cc::mojom::BeginFrameArgsDataView, cc::BeginFrameArgs>::Read(
    cc::mojom::BeginFrameArgsDataView data,
    cc::BeginFrameArgs* out) {
  if (!data.ReadFrameTime(&out->frame_time) ||
      !data.ReadDeadline(&out->deadline) ||
      !data.ReadInterval(&out->interval)) {
    return false;
  }
  out->source_id = data.source_id();
  out->sequence_number = data.sequence_number();
  // TODO(eseckler): Use EnumTraits for |type|.
  out->type = static_cast<cc::BeginFrameArgs::BeginFrameArgsType>(data.type());
  out->on_critical_path = data.on_critical_path();
  return true;
}

// static
bool StructTraits<cc::mojom::BeginFrameAckDataView, cc::BeginFrameAck>::Read(
    cc::mojom::BeginFrameAckDataView data,
    cc::BeginFrameAck* out) {
  if (data.sequence_number() < cc::BeginFrameArgs::kStartingFrameNumber)
    return false;
  out->source_id = data.source_id();
  out->sequence_number = data.sequence_number();
  out->latest_confirmed_sequence_number =
      data.latest_confirmed_sequence_number();
  return true;
}

}  // namespace mojo