dom/webgpu/Instance.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef GPU_INSTANCE_H_
   7 #define GPU_INSTANCE_H_
   8
   9 #include "mozilla/AlreadyAddRefed.h"
  10 #include "mozilla/RefPtr.h"
  11 #include "mozilla/dom/WebGPUBinding.h"
  12 #include "mozilla/layers/BuildConstants.h"
  13 #include "nsCOMPtr.h"
  14 #include "ObjectModel.h"
  15
  16 namespace mozilla {
  17 class ErrorResult;
  18 namespace dom {
  19 class Promise;
  20 struct GPURequestAdapterOptions;
  21 }  // namespace dom
  22
  23 namespace webgpu {
  24 class Adapter;
  25 class GPUAdapter;
  26 class WebGPUChild;
  27
  28 class Instance final : public nsWrapperCache {
  29  public:
  30   GPU_DECL_CYCLE_COLLECTION(Instance)
  31   GPU_DECL_JS_WRAP(Instance)
  32
  33   nsIGlobalObject* GetParentObject() const { return mOwner; }
  34
  35   static bool PrefEnabled(JSContext* aCx, JSObject* aObj);
  36
  37   static already_AddRefed<Instance> Create(nsIGlobalObject* aOwner);
  38
  39   already_AddRefed<dom::Promise> RequestAdapter(
  40       const dom::GPURequestAdapterOptions& aOptions, ErrorResult& aRv);
  41
  42   dom::GPUTextureFormat GetPreferredCanvasFormat() const {
  43     if (kIsAndroid) {
  44       return dom::GPUTextureFormat::Rgba8unorm;
  45     }
  46     return dom::GPUTextureFormat::Bgra8unorm;
  47   };
  48
  49  private:
  50   explicit Instance(nsIGlobalObject* aOwner);
  51   virtual ~Instance();
  52   void Cleanup();
  53
  54   nsCOMPtr<nsIGlobalObject> mOwner;
  55
  56  public:
  57 };
  58
  59 }  // namespace webgpu
  60 }  // namespace mozilla
  61
  62 #endif  // GPU_INSTANCE_H_