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/* -*- 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_INSTANCE_H_
#define GPU_INSTANCE_H_
#include "ObjectModel.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/WebGPUBinding.h"
#include "mozilla/layers/BuildConstants.h"
#include "nsCOMPtr.h"
namespace mozilla {
class ErrorResult;
namespace dom {
class Promise;
struct GPURequestAdapterOptions;
} // namespace dom
namespace webgpu {
class Adapter;
class GPUAdapter;
class Instance;
class WebGPUChild;
class WGSLLanguageFeatures final : public nsWrapperCache,
public ChildOf<Instance> {
public:
GPU_DECL_CYCLE_COLLECTION(WGSLLanguageFeatures)
public:
explicit WGSLLanguageFeatures(Instance* const aParent) : ChildOf(aParent) {}
void Add(const nsAString& feature, ErrorResult& aRv) {
dom::WGSLLanguageFeatures_Binding::SetlikeHelpers::Add(this, feature, aRv);
}
protected:
virtual ~WGSLLanguageFeatures() = default;
public:
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override {
return dom::WGSLLanguageFeatures_Binding::Wrap(aCx, this, aGivenProto);
}
};
class Instance final : public nsWrapperCache {
public:
GPU_DECL_CYCLE_COLLECTION(Instance)
GPU_DECL_JS_WRAP(Instance)
nsIGlobalObject* GetParentObject() const { return mOwner; }
static bool PrefEnabled(JSContext* aCx, JSObject* aObj);
static bool ExternalTexturePrefEnabled(JSContext* aCx, JSObject* aObj);
static already_AddRefed<Instance> Create(nsIGlobalObject* aOwner);
already_AddRefed<dom::Promise> RequestAdapter(
const dom::GPURequestAdapterOptions& aOptions, ErrorResult& aRv);
dom::GPUTextureFormat GetPreferredCanvasFormat() const {
// Changing implementation in a way that increases fingerprinting surface?
// Please create a bug in [Core::Privacy: Anti
// Tracking](https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=Privacy%3A%20Anti-Tracking)
if (kIsAndroid) {
return dom::GPUTextureFormat::Rgba8unorm;
}
return dom::GPUTextureFormat::Bgra8unorm;
};
private:
explicit Instance(nsIGlobalObject* aOwner);
virtual ~Instance() = default;
nsCOMPtr<nsIGlobalObject> mOwner;
RefPtr<WGSLLanguageFeatures> mWgslLanguageFeatures;
public:
already_AddRefed<WGSLLanguageFeatures> WgslLanguageFeatures() const {
RefPtr<WGSLLanguageFeatures> features = mWgslLanguageFeatures;
return features.forget();
}
};
} // namespace webgpu
} // namespace mozilla
#endif // GPU_INSTANCE_H_
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