gecko-dev/dom/webgpu/Adapter.cpp

52 строки
1.4 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 "mozilla/dom/WebGPUBinding.h"
#include "Adapter.h"
#include "Device.h"
#include "Instance.h"
#include "ipc/WebGPUChild.h"
#include "mozilla/dom/Promise.h"
namespace mozilla {
namespace webgpu {
GPU_IMPL_CYCLE_COLLECTION(Adapter, mParent, mBridge)
GPU_IMPL_JS_WRAP(Adapter)
Adapter::Adapter(Instance* const aParent, RawId aId)
: ChildOf(aParent), mBridge(aParent->mBridge), mId(aId) {}
Adapter::~Adapter() { Cleanup(); }
void Adapter::Cleanup() {
if (mValid && mBridge && mBridge->IsOpen()) {
mValid = false;
mBridge->SendAdapterDestroy(mId);
}
}
already_AddRefed<dom::Promise> Adapter::RequestDevice(
const dom::GPUDeviceDescriptor& aDesc, ErrorResult& aRv) {
RefPtr<dom::Promise> promise = dom::Promise::Create(GetParentObject(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
Maybe<RawId> id = mBridge->AdapterRequestDevice(mId, aDesc);
if (id.isSome()) {
RefPtr<Device> device = new Device(this, id.value());
promise->MaybeResolve(device);
} else {
promise->MaybeRejectWithNotSupportedError("Unable to instanciate a Device");
}
return promise.forget();
}
} // namespace webgpu
} // namespace mozilla