| // Copyright 2019 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/vulkan/BackendVk.h" |
| |
| #include "common/BitSetIterator.h" |
| #include "common/Log.h" |
| #include "common/SystemUtils.h" |
| #include "dawn_native/Instance.h" |
| #include "dawn_native/VulkanBackend.h" |
| #include "dawn_native/vulkan/AdapterVk.h" |
| #include "dawn_native/vulkan/VulkanError.h" |
| |
| // TODO(crbug.com/dawn/283): Link against the Vulkan Loader and remove this. |
| #if defined(DAWN_ENABLE_SWIFTSHADER) |
| # if defined(DAWN_PLATFORM_LINUX) || defined(DAWN_PLATFORM_FUSCHIA) |
| constexpr char kSwiftshaderLibName[] = "libvk_swiftshader.so"; |
| # elif defined(DAWN_PLATFORM_WINDOWS) |
| constexpr char kSwiftshaderLibName[] = "vk_swiftshader.dll"; |
| # elif defined(DAWN_PLATFORM_MACOS) |
| constexpr char kSwiftshaderLibName[] = "libvk_swiftshader.dylib"; |
| # else |
| # error "Unimplemented Swiftshader Vulkan backend platform" |
| # endif |
| #endif |
| |
| #if defined(DAWN_PLATFORM_LINUX) |
| # if defined(DAWN_PLATFORM_ANDROID) |
| constexpr char kVulkanLibName[] = "libvulkan.so"; |
| # else |
| constexpr char kVulkanLibName[] = "libvulkan.so.1"; |
| # endif |
| #elif defined(DAWN_PLATFORM_WINDOWS) |
| constexpr char kVulkanLibName[] = "vulkan-1.dll"; |
| #elif defined(DAWN_PLATFORM_MACOS) |
| constexpr char kVulkanLibName[] = "libvulkan.dylib"; |
| #elif defined(DAWN_PLATFORM_FUCHSIA) |
| constexpr char kVulkanLibName[] = "libvulkan.so"; |
| #else |
| # error "Unimplemented Vulkan backend platform" |
| #endif |
| |
| namespace dawn_native { namespace vulkan { |
| |
| Backend::Backend(InstanceBase* instance) |
| : BackendConnection(instance, wgpu::BackendType::Vulkan) { |
| } |
| |
| Backend::~Backend() { |
| if (mDebugReportCallback != VK_NULL_HANDLE) { |
| mFunctions.DestroyDebugReportCallbackEXT(mInstance, mDebugReportCallback, nullptr); |
| mDebugReportCallback = VK_NULL_HANDLE; |
| } |
| |
| // VkPhysicalDevices are destroyed when the VkInstance is destroyed |
| if (mInstance != VK_NULL_HANDLE) { |
| mFunctions.DestroyInstance(mInstance, nullptr); |
| mInstance = VK_NULL_HANDLE; |
| } |
| } |
| |
| const VulkanFunctions& Backend::GetFunctions() const { |
| return mFunctions; |
| } |
| |
| VkInstance Backend::GetVkInstance() const { |
| return mInstance; |
| } |
| |
| const VulkanGlobalInfo& Backend::GetGlobalInfo() const { |
| return mGlobalInfo; |
| } |
| |
| MaybeError Backend::LoadVulkan(bool useSwiftshader) { |
| // First try to load the system Vulkan driver, if that fails, |
| // try to load with Swiftshader. Note: The system driver could potentially be Swiftshader |
| // if it was installed. |
| if (mVulkanLib.Open(kVulkanLibName)) { |
| return {}; |
| } |
| dawn::WarningLog() << std::string("Couldn't open ") + kVulkanLibName; |
| |
| // If |useSwiftshader == true|, fallback and try to directly load the Swiftshader |
| // library. |
| if (useSwiftshader) { |
| #if defined(DAWN_ENABLE_SWIFTSHADER) |
| if (mVulkanLib.Open(kSwiftshaderLibName)) { |
| return {}; |
| } |
| dawn::WarningLog() << std::string("Couldn't open ") + kSwiftshaderLibName; |
| #else |
| UNREACHABLE(); |
| #endif // defined(DAWN_ENABLE_SWIFTSHADER) |
| } |
| |
| return DAWN_INTERNAL_ERROR("Couldn't load Vulkan"); |
| } |
| |
| MaybeError Backend::Initialize(bool useSwiftshader) { |
| DAWN_TRY(LoadVulkan(useSwiftshader)); |
| |
| // These environment variables need only be set while loading procs and gathering device |
| // info. |
| ScopedEnvironmentVar vkICDFilenames; |
| ScopedEnvironmentVar vkLayerPath; |
| |
| if (useSwiftshader) { |
| #if defined(DAWN_SWIFTSHADER_VK_ICD_JSON) |
| std::string fullSwiftshaderICDPath = |
| GetExecutableDirectory() + DAWN_SWIFTSHADER_VK_ICD_JSON; |
| if (!vkICDFilenames.Set("VK_ICD_FILENAMES", fullSwiftshaderICDPath.c_str())) { |
| return DAWN_INTERNAL_ERROR("Couldn't set VK_ICD_FILENAMES"); |
| } |
| #else |
| dawn::WarningLog() << "Swiftshader enabled but Dawn was not built with " |
| "DAWN_SWIFTSHADER_VK_ICD_JSON."; |
| #endif |
| } |
| |
| if (GetInstance()->IsBackendValidationEnabled()) { |
| #if defined(DAWN_ENABLE_VULKAN_VALIDATION_LAYERS) |
| std::string vkDataDir = GetExecutableDirectory() + DAWN_VK_DATA_DIR; |
| if (!vkLayerPath.Set("VK_LAYER_PATH", vkDataDir.c_str())) { |
| return DAWN_INTERNAL_ERROR("Couldn't set VK_LAYER_PATH"); |
| } |
| #else |
| dawn::WarningLog() << "Backend validation enabled but Dawn was not built with " |
| "DAWN_ENABLE_VULKAN_VALIDATION_LAYERS."; |
| #endif |
| } |
| |
| DAWN_TRY(mFunctions.LoadGlobalProcs(mVulkanLib)); |
| |
| DAWN_TRY_ASSIGN(mGlobalInfo, GatherGlobalInfo(*this)); |
| |
| VulkanGlobalKnobs usedGlobalKnobs = {}; |
| DAWN_TRY_ASSIGN(usedGlobalKnobs, CreateInstance()); |
| *static_cast<VulkanGlobalKnobs*>(&mGlobalInfo) = usedGlobalKnobs; |
| |
| DAWN_TRY(mFunctions.LoadInstanceProcs(mInstance, mGlobalInfo)); |
| |
| if (usedGlobalKnobs.HasExt(InstanceExt::DebugReport)) { |
| DAWN_TRY(RegisterDebugReport()); |
| } |
| |
| DAWN_TRY_ASSIGN(mPhysicalDevices, GetPhysicalDevices(*this)); |
| |
| return {}; |
| } |
| |
| std::vector<std::unique_ptr<AdapterBase>> Backend::DiscoverDefaultAdapters() { |
| std::vector<std::unique_ptr<AdapterBase>> adapters; |
| |
| for (VkPhysicalDevice physicalDevice : mPhysicalDevices) { |
| std::unique_ptr<Adapter> adapter = std::make_unique<Adapter>(this, physicalDevice); |
| |
| if (GetInstance()->ConsumedError(adapter->Initialize())) { |
| continue; |
| } |
| |
| adapters.push_back(std::move(adapter)); |
| } |
| |
| return adapters; |
| } |
| |
| ResultOrError<VulkanGlobalKnobs> Backend::CreateInstance() { |
| VulkanGlobalKnobs usedKnobs = {}; |
| std::vector<const char*> layerNames; |
| |
| // vktrace works by instering a layer, but we hide it behind a macro due to the vktrace |
| // layer crashes when used without vktrace server started. See this vktrace issue: |
| // https://github.com/LunarG/VulkanTools/issues/254 |
| // Also it is good to put it in first position so that it doesn't see Vulkan calls inserted |
| // by other layers. |
| #if defined(DAWN_USE_VKTRACE) |
| if (mGlobalInfo.vktrace) { |
| layerNames.push_back(kLayerNameLunargVKTrace); |
| usedKnobs.vktrace = true; |
| } |
| #endif |
| // RenderDoc installs a layer at the system level for its capture but we don't want to use |
| // it unless we are debugging in RenderDoc so we hide it behind a macro. |
| #if defined(DAWN_USE_RENDERDOC) |
| if (mGlobalInfo.renderDocCapture) { |
| layerNames.push_back(kLayerNameRenderDocCapture); |
| usedKnobs.renderDocCapture = true; |
| } |
| #endif |
| |
| if (GetInstance()->IsBackendValidationEnabled()) { |
| if (mGlobalInfo.validation) { |
| layerNames.push_back(kLayerNameKhronosValidation); |
| usedKnobs.validation = true; |
| } |
| } |
| |
| // Available and known instance extensions default to being requested, but some special |
| // cases are removed. |
| InstanceExtSet extensionsToRequest = mGlobalInfo.extensions; |
| |
| if (!GetInstance()->IsBackendValidationEnabled()) { |
| extensionsToRequest.Set(InstanceExt::DebugReport, false); |
| } |
| usedKnobs.extensions = extensionsToRequest; |
| |
| std::vector<const char*> extensionNames; |
| for (uint32_t ext : IterateBitSet(extensionsToRequest.extensionBitSet)) { |
| const InstanceExtInfo& info = GetInstanceExtInfo(static_cast<InstanceExt>(ext)); |
| |
| if (info.versionPromoted > mGlobalInfo.apiVersion) { |
| extensionNames.push_back(info.name); |
| } |
| } |
| |
| VkApplicationInfo appInfo; |
| appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO; |
| appInfo.pNext = nullptr; |
| appInfo.pApplicationName = nullptr; |
| appInfo.applicationVersion = 0; |
| appInfo.pEngineName = nullptr; |
| appInfo.engineVersion = 0; |
| appInfo.apiVersion = mGlobalInfo.apiVersion; |
| |
| VkInstanceCreateInfo createInfo; |
| createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO; |
| createInfo.pNext = nullptr; |
| createInfo.flags = 0; |
| createInfo.pApplicationInfo = &appInfo; |
| createInfo.enabledLayerCount = static_cast<uint32_t>(layerNames.size()); |
| createInfo.ppEnabledLayerNames = layerNames.data(); |
| createInfo.enabledExtensionCount = static_cast<uint32_t>(extensionNames.size()); |
| createInfo.ppEnabledExtensionNames = extensionNames.data(); |
| |
| DAWN_TRY(CheckVkSuccess(mFunctions.CreateInstance(&createInfo, nullptr, &mInstance), |
| "vkCreateInstance")); |
| |
| return usedKnobs; |
| } |
| |
| MaybeError Backend::RegisterDebugReport() { |
| VkDebugReportCallbackCreateInfoEXT createInfo; |
| createInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT; |
| createInfo.pNext = nullptr; |
| createInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT; |
| createInfo.pfnCallback = Backend::OnDebugReportCallback; |
| createInfo.pUserData = this; |
| |
| return CheckVkSuccess(mFunctions.CreateDebugReportCallbackEXT( |
| mInstance, &createInfo, nullptr, &*mDebugReportCallback), |
| "vkCreateDebugReportcallback"); |
| } |
| |
| VKAPI_ATTR VkBool32 VKAPI_CALL |
| Backend::OnDebugReportCallback(VkDebugReportFlagsEXT flags, |
| VkDebugReportObjectTypeEXT /*objectType*/, |
| uint64_t /*object*/, |
| size_t /*location*/, |
| int32_t /*messageCode*/, |
| const char* /*pLayerPrefix*/, |
| const char* pMessage, |
| void* /*pUserdata*/) { |
| dawn::WarningLog() << pMessage; |
| ASSERT((flags & VK_DEBUG_REPORT_ERROR_BIT_EXT) == 0); |
| |
| return VK_FALSE; |
| } |
| |
| BackendConnection* Connect(InstanceBase* instance, bool useSwiftshader) { |
| Backend* backend = new Backend(instance); |
| |
| if (instance->ConsumedError(backend->Initialize(useSwiftshader))) { |
| delete backend; |
| return nullptr; |
| } |
| |
| return backend; |
| } |
| |
| }} // namespace dawn_native::vulkan |
