1 // Copyright 2018 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef DAWNNATIVE_BACKENDCONNECTION_H_ 16 #define DAWNNATIVE_BACKENDCONNECTION_H_ 17 18 #include "dawn_native/Adapter.h" 19 #include "dawn_native/DawnNative.h" 20 21 #include <memory> 22 23 namespace dawn_native { 24 25 // An common interface for all backends. Mostly used to create adapters for a particular 26 // backend. 27 class BackendConnection { 28 public: 29 BackendConnection(InstanceBase* instance, wgpu::BackendType type); 30 virtual ~BackendConnection() = default; 31 32 wgpu::BackendType GetType() const; 33 InstanceBase* GetInstance() const; 34 35 // Returns all the adapters for the system that can be created by the backend, without extra 36 // options (such as debug adapters, custom driver libraries, etc.) 37 virtual std::vector<std::unique_ptr<AdapterBase>> DiscoverDefaultAdapters() = 0; 38 39 // Returns new adapters created with the backend-specific options. 40 virtual ResultOrError<std::vector<std::unique_ptr<AdapterBase>>> DiscoverAdapters( 41 const AdapterDiscoveryOptionsBase* options); 42 43 private: 44 InstanceBase* mInstance = nullptr; 45 wgpu::BackendType mType; 46 }; 47 48 } // namespace dawn_native 49 50 #endif // DAWNNATIVE_BACKENDCONNECTION_H_ 51