| // 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. |
| |
| #include "dawn_native/d3d12/PlatformFunctions.h" |
| |
| #include "common/DynamicLib.h" |
| |
| #include <comdef.h> |
| #include <array> |
| #include <sstream> |
| |
| namespace dawn_native { namespace d3d12 { |
| namespace { |
| // Extract Version from "10.0.{Version}.0" if possible, otherwise return 0. |
| uint32_t GetWindowsSDKVersionFromDirectoryName(const char* directoryName) { |
| constexpr char kPrefix[] = "10.0."; |
| constexpr char kPostfix[] = ".0"; |
| |
| constexpr uint32_t kPrefixLen = sizeof(kPrefix) - 1; |
| constexpr uint32_t kPostfixLen = sizeof(kPostfix) - 1; |
| const uint32_t directoryNameLen = strlen(directoryName); |
| |
| if (directoryNameLen < kPrefixLen + kPostfixLen + 1) { |
| return 0; |
| } |
| |
| // Check if directoryName starts with "10.0.". |
| if (strncmp(directoryName, kPrefix, kPrefixLen) != 0) { |
| return 0; |
| } |
| |
| // Check if directoryName ends with ".0". |
| if (strncmp(directoryName + (directoryNameLen - kPostfixLen), kPostfix, kPostfixLen) != |
| 0) { |
| return 0; |
| } |
| |
| // Extract Version from "10.0.{Version}.0" and convert Version into an integer. |
| return atoi(directoryName + kPrefixLen); |
| } |
| |
| class ScopedFileHandle final { |
| public: |
| explicit ScopedFileHandle(HANDLE handle) : mHandle(handle) { |
| } |
| ~ScopedFileHandle() { |
| if (mHandle != INVALID_HANDLE_VALUE) { |
| ASSERT(FindClose(mHandle)); |
| } |
| } |
| HANDLE GetHandle() const { |
| return mHandle; |
| } |
| |
| private: |
| HANDLE mHandle; |
| }; |
| |
| std::string GetWindowsSDKBasePath() { |
| const char* kDefaultWindowsSDKPath = |
| "C:\\Program Files (x86)\\Windows Kits\\10\\bin\\*"; |
| WIN32_FIND_DATAA fileData; |
| ScopedFileHandle handle(FindFirstFileA(kDefaultWindowsSDKPath, &fileData)); |
| if (handle.GetHandle() == INVALID_HANDLE_VALUE) { |
| return ""; |
| } |
| |
| uint32_t highestWindowsSDKVersion = 0; |
| do { |
| if (!(fileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { |
| continue; |
| } |
| |
| highestWindowsSDKVersion = |
| std::max(highestWindowsSDKVersion, |
| GetWindowsSDKVersionFromDirectoryName(fileData.cFileName)); |
| } while (FindNextFileA(handle.GetHandle(), &fileData)); |
| |
| if (highestWindowsSDKVersion == 0) { |
| return ""; |
| } |
| |
| // Currently we only support using DXC on x64. |
| std::ostringstream ostream; |
| ostream << "C:\\Program Files (x86)\\Windows Kits\\10\\bin\\10.0." |
| << highestWindowsSDKVersion << ".0\\x64\\"; |
| |
| return ostream.str(); |
| } |
| } // anonymous namespace |
| |
| PlatformFunctions::PlatformFunctions() = default; |
| PlatformFunctions::~PlatformFunctions() = default; |
| |
| MaybeError PlatformFunctions::LoadFunctions() { |
| DAWN_TRY(LoadD3D12()); |
| DAWN_TRY(LoadDXGI()); |
| LoadDXCLibraries(); |
| DAWN_TRY(LoadFXCompiler()); |
| DAWN_TRY(LoadD3D11()); |
| LoadPIXRuntime(); |
| return {}; |
| } |
| |
| MaybeError PlatformFunctions::LoadD3D12() { |
| std::string error; |
| if (!mD3D12Lib.Open("d3d12.dll", &error) || |
| !mD3D12Lib.GetProc(&d3d12CreateDevice, "D3D12CreateDevice", &error) || |
| !mD3D12Lib.GetProc(&d3d12GetDebugInterface, "D3D12GetDebugInterface", &error) || |
| !mD3D12Lib.GetProc(&d3d12SerializeRootSignature, "D3D12SerializeRootSignature", |
| &error) || |
| !mD3D12Lib.GetProc(&d3d12CreateRootSignatureDeserializer, |
| "D3D12CreateRootSignatureDeserializer", &error) || |
| !mD3D12Lib.GetProc(&d3d12SerializeVersionedRootSignature, |
| "D3D12SerializeVersionedRootSignature", &error) || |
| !mD3D12Lib.GetProc(&d3d12CreateVersionedRootSignatureDeserializer, |
| "D3D12CreateVersionedRootSignatureDeserializer", &error)) { |
| return DAWN_INTERNAL_ERROR(error.c_str()); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError PlatformFunctions::LoadD3D11() { |
| std::string error; |
| if (!mD3D11Lib.Open("d3d11.dll", &error) || |
| !mD3D11Lib.GetProc(&d3d11on12CreateDevice, "D3D11On12CreateDevice", &error)) { |
| return DAWN_INTERNAL_ERROR(error.c_str()); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError PlatformFunctions::LoadDXGI() { |
| std::string error; |
| if (!mDXGILib.Open("dxgi.dll", &error) || |
| !mDXGILib.GetProc(&dxgiGetDebugInterface1, "DXGIGetDebugInterface1", &error) || |
| !mDXGILib.GetProc(&createDxgiFactory2, "CreateDXGIFactory2", &error)) { |
| return DAWN_INTERNAL_ERROR(error.c_str()); |
| } |
| |
| return {}; |
| } |
| |
| void PlatformFunctions::LoadDXCLibraries() { |
| const std::string& windowsSDKBasePath = GetWindowsSDKBasePath(); |
| |
| LoadDXIL(windowsSDKBasePath); |
| LoadDXCompiler(windowsSDKBasePath); |
| } |
| |
| void PlatformFunctions::LoadDXIL(const std::string& baseWindowsSDKPath) { |
| const char* dxilDLLName = "dxil.dll"; |
| const std::array<std::string, 2> kDxilDLLPaths = { |
| {dxilDLLName, baseWindowsSDKPath + dxilDLLName}}; |
| |
| for (const std::string& dxilDLLPath : kDxilDLLPaths) { |
| if (mDXILLib.Open(dxilDLLPath, nullptr)) { |
| return; |
| } |
| } |
| ASSERT(!mDXILLib.Valid()); |
| } |
| |
| void PlatformFunctions::LoadDXCompiler(const std::string& baseWindowsSDKPath) { |
| // DXIL must be loaded before DXC, otherwise shader signing is unavailable |
| if (!mDXILLib.Valid()) { |
| return; |
| } |
| |
| const char* dxCompilerDLLName = "dxcompiler.dll"; |
| const std::array<std::string, 2> kDxCompilerDLLPaths = { |
| {dxCompilerDLLName, baseWindowsSDKPath + dxCompilerDLLName}}; |
| |
| DynamicLib dxCompilerLib; |
| for (const std::string& dxCompilerDLLName : kDxCompilerDLLPaths) { |
| if (dxCompilerLib.Open(dxCompilerDLLName, nullptr)) { |
| break; |
| } |
| } |
| |
| if (dxCompilerLib.Valid() && |
| dxCompilerLib.GetProc(&dxcCreateInstance, "DxcCreateInstance", nullptr)) { |
| mDXCompilerLib = std::move(dxCompilerLib); |
| } else { |
| mDXILLib.Close(); |
| } |
| } |
| |
| MaybeError PlatformFunctions::LoadFXCompiler() { |
| std::string error; |
| if (!mFXCompilerLib.Open("d3dcompiler_47.dll", &error) || |
| !mFXCompilerLib.GetProc(&d3dCompile, "D3DCompile", &error)) { |
| return DAWN_INTERNAL_ERROR(error.c_str()); |
| } |
| |
| return {}; |
| } |
| |
| bool PlatformFunctions::IsPIXEventRuntimeLoaded() const { |
| return mPIXEventRuntimeLib.Valid(); |
| } |
| |
| bool PlatformFunctions::IsDXCAvailable() const { |
| return mDXILLib.Valid() && mDXCompilerLib.Valid(); |
| } |
| |
| void PlatformFunctions::LoadPIXRuntime() { |
| if (!mPIXEventRuntimeLib.Open("WinPixEventRuntime.dll") || |
| !mPIXEventRuntimeLib.GetProc(&pixBeginEventOnCommandList, |
| "PIXBeginEventOnCommandList") || |
| !mPIXEventRuntimeLib.GetProc(&pixEndEventOnCommandList, "PIXEndEventOnCommandList") || |
| !mPIXEventRuntimeLib.GetProc(&pixSetMarkerOnCommandList, "PIXSetMarkerOnCommandList")) { |
| mPIXEventRuntimeLib.Close(); |
| } |
| } |
| |
| }} // namespace dawn_native::d3d12 |