MetalDeviceManager.mm

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/* 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 "MetalDeviceManager.h"

#import <Metal/Metal.h>

namespace mozilla::wr {

Maybe<uint64_t> MetalDeviceManager::GetSystemDefaultDeviceRegistryId() {

  id<MTLDevice> device = MTLCreateSystemDefaultDevice();

  if (!device) {

    return Nothing();

  const uint64_t registryID = device.registryID;

  [device release];

  return Some(registryID);

}  // namespace mozilla::wr