| // 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 SRC_DAWN_NATIVE_INSTANCE_H_ |
| #define SRC_DAWN_NATIVE_INSTANCE_H_ |
| |
| #include <array> |
| #include <memory> |
| #include <mutex> |
| #include <set> |
| #include <string> |
| #include <unordered_map> |
| #include <unordered_set> |
| #include <vector> |
| |
| #include "dawn/common/RefCounted.h" |
| #include "dawn/common/ityp_array.h" |
| #include "dawn/common/ityp_bitset.h" |
| #include "dawn/native/Adapter.h" |
| #include "dawn/native/BackendConnection.h" |
| #include "dawn/native/BlobCache.h" |
| #include "dawn/native/Features.h" |
| #include "dawn/native/RefCountedWithExternalCount.h" |
| #include "dawn/native/Toggles.h" |
| #include "dawn/native/dawn_platform.h" |
| |
| namespace dawn::platform { |
| class Platform; |
| } // namespace dawn::platform |
| |
| namespace dawn::native { |
| |
| class CallbackTaskManager; |
| class DeviceBase; |
| class Surface; |
| class XlibXcbFunctions; |
| |
| using BackendsBitset = ityp::bitset<wgpu::BackendType, kEnumCount<wgpu::BackendType>>; |
| using BackendsArray = ityp:: |
| array<wgpu::BackendType, std::unique_ptr<BackendConnection>, kEnumCount<wgpu::BackendType>>; |
| |
| InstanceBase* APICreateInstance(const InstanceDescriptor* descriptor); |
| |
| // This is called InstanceBase for consistency across the frontend, even if the backends don't |
| // specialize this class. |
| class InstanceBase final : public RefCountedWithExternalCount { |
| public: |
| static Ref<InstanceBase> Create(const InstanceDescriptor* descriptor = nullptr); |
| |
| void APIRequestAdapter(const RequestAdapterOptions* options, |
| WGPURequestAdapterCallback callback, |
| void* userdata); |
| |
| // Deprecated: Discover physical devices and save them on the instance. |
| void DiscoverDefaultPhysicalDevices(); |
| bool DiscoverPhysicalDevices(const PhysicalDeviceDiscoveryOptionsBase* options); |
| |
| // Deprecated. Use EnumerateAdapters instead. |
| // Return adapters created on physical device discovered by the instance. |
| std::vector<Ref<AdapterBase>> GetAdapters() const; |
| |
| // Discovers and returns a vector of adapters. |
| // All systems adapters that can be found are returned if no options are passed. |
| // Otherwise, returns adapters based on the `options`. |
| std::vector<Ref<AdapterBase>> EnumerateAdapters(const RequestAdapterOptions* options = nullptr); |
| |
| size_t GetPhysicalDeviceCountForTesting() const; |
| |
| // Used to handle error that happen up to device creation. |
| bool ConsumedError(MaybeError maybeError); |
| |
| template <typename T> |
| bool ConsumedError(ResultOrError<T> resultOrError, T* result) { |
| if (resultOrError.IsError()) { |
| ConsumeError(resultOrError.AcquireError()); |
| return true; |
| } |
| *result = resultOrError.AcquireSuccess(); |
| return false; |
| } |
| |
| // Consume an error and log its warning at most once. This is useful for |
| // physical device creation errors that happen because the backend is not |
| // supported or doesn't meet the required capabilities. |
| bool ConsumedErrorAndWarnOnce(MaybeError maybeError); |
| |
| template <typename T> |
| [[nodiscard]] bool ConsumedErrorAndWarnOnce(ResultOrError<T> resultOrError, T* result) { |
| if (DAWN_UNLIKELY(resultOrError.IsError())) { |
| return ConsumedErrorAndWarnOnce(resultOrError.AcquireError()); |
| } |
| *result = resultOrError.AcquireSuccess(); |
| return false; |
| } |
| |
| const TogglesState& GetTogglesState() const; |
| |
| // 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; |
| |
| // TODO(crbug.com/dawn/1495): Move this to a Toggle, perhaps on RequestAdapterOptions |
| // after Toggle refactor is complete. |
| void EnableAdapterBlocklist(bool enable); |
| bool IsAdapterBlocklistEnabled() const; |
| |
| // Testing only API that is NOT thread-safe. |
| void SetPlatformForTesting(dawn::platform::Platform* platform); |
| dawn::platform::Platform* GetPlatform(); |
| BlobCache* GetBlobCache(bool enabled = true); |
| |
| uint64_t GetDeviceCountForTesting() const; |
| void AddDevice(DeviceBase* device); |
| void RemoveDevice(DeviceBase* device); |
| |
| const std::vector<std::string>& GetRuntimeSearchPaths() const; |
| |
| const Ref<CallbackTaskManager>& GetCallbackTaskManager() const; |
| |
| // Get backend-independent libraries that need to be loaded dynamically. |
| const XlibXcbFunctions* GetOrCreateXlibXcbFunctions(); |
| |
| // Dawn API |
| Surface* APICreateSurface(const SurfaceDescriptor* descriptor); |
| bool APIProcessEvents(); |
| |
| private: |
| explicit InstanceBase(const TogglesState& instanceToggles); |
| ~InstanceBase() override; |
| |
| void WillDropLastExternalRef() override; |
| |
| InstanceBase(const InstanceBase& other) = delete; |
| InstanceBase& operator=(const InstanceBase& other) = delete; |
| |
| MaybeError Initialize(const InstanceDescriptor* descriptor); |
| void SetPlatform(dawn::platform::Platform* platform); |
| |
| // Lazily creates connections to all backends that have been compiled. |
| void EnsureBackendConnection(wgpu::BackendType backendType); |
| |
| // Deprecated: Discover physical devices with options, and save them on the instance. |
| void DeprecatedDiscoverPhysicalDevices(const RequestAdapterOptions* options); |
| // Enumerate physical devices according to options and return them. |
| std::vector<Ref<PhysicalDeviceBase>> EnumeratePhysicalDevices( |
| const RequestAdapterOptions* options); |
| |
| // Helper function that create adapter on given physical device handling required adapter |
| // toggles descriptor. |
| Ref<AdapterBase> CreateAdapter(Ref<PhysicalDeviceBase> physicalDevice, |
| FeatureLevel featureLevel, |
| const DawnTogglesDescriptor* requiredAdapterToggles) const; |
| |
| void ConsumeError(std::unique_ptr<ErrorData> error); |
| |
| std::unordered_set<std::string> warningMessages; |
| |
| std::vector<std::string> mRuntimeSearchPaths; |
| |
| BackendsBitset mBackendsConnected; |
| |
| bool mBeginCaptureOnStartup = false; |
| bool mEnableAdapterBlocklist = false; |
| BackendValidationLevel mBackendValidationLevel = BackendValidationLevel::Disabled; |
| |
| dawn::platform::Platform* mPlatform = nullptr; |
| std::unique_ptr<dawn::platform::Platform> mDefaultPlatform; |
| std::unique_ptr<BlobCache> mBlobCache; |
| BlobCache mPassthroughBlobCache; |
| |
| BackendsArray mBackends; |
| std::vector<Ref<PhysicalDeviceBase>> mDeprecatedPhysicalDevices; |
| bool mDeprecatedDiscoveredDefaultPhysicalDevices = false; |
| |
| TogglesState mToggles; |
| |
| FeaturesInfo mFeaturesInfo; |
| TogglesInfo mTogglesInfo; |
| |
| #if defined(DAWN_USE_X11) |
| std::unique_ptr<XlibXcbFunctions> mXlibXcbFunctions; |
| #endif // defined(DAWN_USE_X11) |
| |
| Ref<CallbackTaskManager> mCallbackTaskManager; |
| |
| std::set<DeviceBase*> mDevicesList; |
| mutable std::mutex mDevicesListMutex; |
| }; |
| |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_INSTANCE_H_ |