1 // Copyright 2019 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_D3D12_BACKENDD3D12_H_ 16 #define DAWNNATIVE_D3D12_BACKENDD3D12_H_ 17 18 #include "dawn_native/BackendConnection.h" 19 20 #include "dawn_native/d3d12/d3d12_platform.h" 21 22 namespace dawn_native { namespace d3d12 { 23 24 class PlatformFunctions; 25 26 class Backend : public BackendConnection { 27 public: 28 Backend(InstanceBase* instance); 29 30 MaybeError Initialize(); 31 32 ComPtr<IDXGIFactory4> GetFactory() const; 33 34 MaybeError EnsureDxcLibrary(); 35 MaybeError EnsureDxcCompiler(); 36 MaybeError EnsureDxcValidator(); 37 ComPtr<IDxcLibrary> GetDxcLibrary() const; 38 ComPtr<IDxcCompiler> GetDxcCompiler() const; 39 ComPtr<IDxcValidator> GetDxcValidator() const; 40 41 const PlatformFunctions* GetFunctions() const; 42 43 std::vector<std::unique_ptr<AdapterBase>> DiscoverDefaultAdapters() override; 44 ResultOrError<std::vector<std::unique_ptr<AdapterBase>>> DiscoverAdapters( 45 const AdapterDiscoveryOptionsBase* optionsBase) override; 46 47 private: 48 // Keep mFunctions as the first member so that in the destructor it is freed last. Otherwise 49 // the D3D12 DLLs are unloaded before we are done using them. 50 std::unique_ptr<PlatformFunctions> mFunctions; 51 ComPtr<IDXGIFactory4> mFactory; 52 ComPtr<IDxcLibrary> mDxcLibrary; 53 ComPtr<IDxcCompiler> mDxcCompiler; 54 ComPtr<IDxcValidator> mDxcValidator; 55 }; 56 57 }} // namespace dawn_native::d3d12 58 59 #endif // DAWNNATIVE_D3D12_BACKENDD3D12_H_ 60