1 files changed, 107 insertions, 0 deletions
diff --git a/dom/webgpu/Adapter.h b/dom/webgpu/Adapter.h
new file mode 100644
index 0000000000..cd46bc3ddf
--- /dev/null
+++ b/dom/webgpu/Adapter.h
@@ -0,0 +1,107 @@
+/* -*- 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/. */
+
+#ifndef GPU_Adapter_H_
+#define GPU_Adapter_H_
+
+#include <memory>
+
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/dom/NonRefcountedDOMObject.h"
+#include "mozilla/webgpu/WebGPUTypes.h"
+#include "nsString.h"
+#include "ObjectModel.h"
+
+namespace mozilla {
+class ErrorResult;
+namespace dom {
+class Promise;
+struct GPUDeviceDescriptor;
+struct GPUExtensions;
+struct GPUFeatures;
+enum class GPUFeatureName : uint8_t;
+enum class WgpuBackend : uint8_t;
+enum class WgpuDeviceType : uint8_t;
+template <typename T>
+class Sequence;
+}  // namespace dom
+
+namespace webgpu {
+class Device;
+class Instance;
+class SupportedFeatures;
+class SupportedLimits;
+class WebGPUChild;
+namespace ffi {
+struct WGPUAdapterInformation;
+}  // namespace ffi
+
+class AdapterInfo final : public dom::NonRefcountedDOMObject {
+ private:
+  const std::shared_ptr<ffi::WGPUAdapterInformation> mAboutSupportInfo;
+
+ public:
+  explicit AdapterInfo(
+      const std::shared_ptr<ffi::WGPUAdapterInformation>& aAboutSupportInfo)
+      : mAboutSupportInfo(aAboutSupportInfo) {}
+
+  void GetVendor(nsString& s) const { s = nsString(); }
+  void GetArchitecture(nsString& s) const { s = nsString(); }
+  void GetDevice(nsString& s) const { s = nsString(); }
+  void GetDescription(nsString& s) const { s = nsString(); }
+
+  // Non-standard field getters; see also TODO BUGZILLA LINK
+  void GetWgpuName(nsString&) const;
+  uint32_t WgpuVendor() const;
+  uint32_t WgpuDevice() const;
+  void GetWgpuDeviceType(nsString&) const;
+  void GetWgpuDriver(nsString&) const;
+  void GetWgpuDriverInfo(nsString&) const;
+  void GetWgpuBackend(nsString&) const;
+
+  bool WrapObject(JSContext*, JS::Handle<JSObject*>,
+                  JS::MutableHandle<JSObject*>);
+};
+
+class Adapter final : public ObjectBase, public ChildOf<Instance> {
+ public:
+  GPU_DECL_CYCLE_COLLECTION(Adapter)
+  GPU_DECL_JS_WRAP(Adapter)
+
+  RefPtr<WebGPUChild> mBridge;
+
+  static Maybe<uint32_t> MakeFeatureBits(
+      const dom::Sequence<dom::GPUFeatureName>& aFeatures);
+
+ private:
+  ~Adapter();
+  void Cleanup();
+
+  const RawId mId;
+  // Cant have them as `const` right now, since we wouldn't be able
+  // to unlink them in CC unlink.
+  RefPtr<SupportedFeatures> mFeatures;
+  RefPtr<SupportedLimits> mLimits;
+
+  const std::shared_ptr<ffi::WGPUAdapterInformation> mInfo;
+
+ public:
+  Adapter(Instance* const aParent, WebGPUChild* const aBridge,
+          const std::shared_ptr<ffi::WGPUAdapterInformation>& aInfo);
+  const RefPtr<SupportedFeatures>& Features() const;
+  const RefPtr<SupportedLimits>& Limits() const;
+  bool IsFallbackAdapter() const;
+
+  already_AddRefed<dom::Promise> RequestDevice(
+      const dom::GPUDeviceDescriptor& aDesc, ErrorResult& aRv);
+
+  already_AddRefed<dom::Promise> RequestAdapterInfo(
+      const dom::Sequence<nsString>& aUnmaskHints, ErrorResult& aRv) const;
+};
+
+}  // namespace webgpu
+}  // namespace mozilla
+
+#endif  // GPU_Adapter_H_