gecko-dev/dom/webgpu/InstanceProvider.cpp

40 lines
1.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; 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 "InstanceProvider.h"
#include "Instance.h"
#include "mozilla/dom/WebGPUBinding.h"
namespace mozilla {
namespace webgpu {
InstanceProvider::InstanceProvider(nsIGlobalObject* const global)
: mGlobal(global) {}
InstanceProvider::~InstanceProvider() = default;
already_AddRefed<Instance> InstanceProvider::Webgpu() const {
if (!mInstance) {
const auto inst = Instance::Create(mGlobal);
mInstance = Some(inst);
}
auto ret = mInstance.value();
return ret.forget();
}
void InstanceProvider::CcTraverse(
nsCycleCollectionTraversalCallback& callback) const {
if (mInstance) {
CycleCollectionNoteChild(callback, mInstance.ref().get(),
"webgpu::InstanceProvider::mInstance", 0);
}
}
void InstanceProvider::CcUnlink() { mInstance = Some(nullptr); }
} // namespace webgpu
} // namespace mozilla