| // Copyright 2018 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef DAWNNATIVE_INSTANCE_H_ |
| #define DAWNNATIVE_INSTANCE_H_ |
| |
| #include "common/RefCounted.h" |
| #include "common/ityp_bitset.h" |
| #include "dawn_native/Adapter.h" |
| #include "dawn_native/BackendConnection.h" |
| #include "dawn_native/Features.h" |
| #include "dawn_native/Toggles.h" |
| #include "dawn_native/dawn_platform.h" |
| |
| #include <array> |
| #include <memory> |
| #include <unordered_map> |
| #include <vector> |
| |
| namespace dawn::platform { |
| class Platform; |
| } // namespace dawn::platform |
| |
| namespace dawn::native { |
| |
| class Surface; |
| class XlibXcbFunctions; |
| |
| using BackendsBitset = ityp::bitset<wgpu::BackendType, kEnumCount<wgpu::BackendType>>; |
| |
| // This is called InstanceBase for consistency across the frontend, even if the backends don't |
| // specialize this class. |
| class InstanceBase final : public RefCounted { |
| public: |
| static InstanceBase* Create(const InstanceDescriptor* descriptor = nullptr); |
| |
| void APIRequestAdapter(const RequestAdapterOptions* options, |
| WGPURequestAdapterCallback callback, |
| void* userdata); |
| |
| void DiscoverDefaultAdapters(); |
| bool DiscoverAdapters(const AdapterDiscoveryOptionsBase* options); |
| |
| const std::vector<std::unique_ptr<AdapterBase>>& GetAdapters() const; |
| |
| // Used to handle error that happen up to device creation. |
| bool ConsumedError(MaybeError maybeError); |
| |
| // Used to query the details of a toggle. Return nullptr if toggleName is not a valid name |
| // of a toggle supported in Dawn. |
| const ToggleInfo* GetToggleInfo(const char* toggleName); |
| Toggle ToggleNameToEnum(const char* toggleName); |
| |
| // Used to query the details of an feature. Return nullptr if featureName is not a valid |
| // name of an feature supported in Dawn. |
| const FeatureInfo* GetFeatureInfo(wgpu::FeatureName feature); |
| |
| bool IsBackendValidationEnabled() const; |
| void SetBackendValidationLevel(BackendValidationLevel level); |
| BackendValidationLevel GetBackendValidationLevel() const; |
| |
| void EnableBeginCaptureOnStartup(bool beginCaptureOnStartup); |
| bool IsBeginCaptureOnStartupEnabled() const; |
| |
| void SetPlatform(dawn::platform::Platform* platform); |
| dawn::platform::Platform* GetPlatform(); |
| |
| // Get backend-independent libraries that need to be loaded dynamically. |
| const XlibXcbFunctions* GetOrCreateXlibXcbFunctions(); |
| |
| // Dawn API |
| Surface* APICreateSurface(const SurfaceDescriptor* descriptor); |
| |
| private: |
| InstanceBase() = default; |
| ~InstanceBase() = default; |
| |
| InstanceBase(const InstanceBase& other) = delete; |
| InstanceBase& operator=(const InstanceBase& other) = delete; |
| |
| bool Initialize(const InstanceDescriptor* descriptor); |
| |
| // Lazily creates connections to all backends that have been compiled. |
| void EnsureBackendConnection(wgpu::BackendType backendType); |
| |
| MaybeError DiscoverAdaptersInternal(const AdapterDiscoveryOptionsBase* options); |
| |
| BackendsBitset mBackendsConnected; |
| |
| bool mDiscoveredDefaultAdapters = false; |
| |
| bool mBeginCaptureOnStartup = false; |
| BackendValidationLevel mBackendValidationLevel = BackendValidationLevel::Disabled; |
| |
| dawn::platform::Platform* mPlatform = nullptr; |
| std::unique_ptr<dawn::platform::Platform> mDefaultPlatform; |
| |
| std::vector<std::unique_ptr<BackendConnection>> mBackends; |
| std::vector<std::unique_ptr<AdapterBase>> mAdapters; |
| |
| FeaturesInfo mFeaturesInfo; |
| TogglesInfo mTogglesInfo; |
| |
| #if defined(DAWN_USE_X11) |
| std::unique_ptr<XlibXcbFunctions> mXlibXcbFunctions; |
| #endif // defined(DAWN_USE_X11) |
| }; |
| |
| } // namespace dawn::native |
| |
| #endif // DAWNNATIVE_INSTANCE_H_ |