1 files changed, 51 insertions, 0 deletions
diff --git a/dom/webgpu/Adapter.cpp b/dom/webgpu/Adapter.cpp
new file mode 100644
index 0000000000..419890fb26
--- /dev/null
+++ b/dom/webgpu/Adapter.cpp
@@ -0,0 +1,51 @@
+/* -*- 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