| // 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 INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_ |
| #define INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_ |
| |
| #include <vector> |
| |
| #include "dawn/dawn_proc_table.h" |
| #include "dawn/native/dawn_native_export.h" |
| #include "dawn/webgpu_cpp.h" |
| |
| namespace dawn::platform { |
| class Platform; |
| } // namespace dawn::platform |
| |
| namespace dawn::native { |
| |
| class InstanceBase; |
| class AdapterBase; |
| |
| // Each toggle is assigned with a TogglesStage, indicating the validation and earliest usage |
| // time of the toggle. |
| enum class ToggleStage { Instance, Adapter, Device }; |
| |
| // A struct to record the information of a toggle. A toggle is a code path in Dawn device that |
| // can be manually configured to run or not outside Dawn, including workarounds, special |
| // features and optimizations. |
| struct ToggleInfo { |
| const char* name; |
| const char* description; |
| const char* url; |
| ToggleStage stage; |
| }; |
| |
| // A struct to record the information of a feature. A feature is a GPU feature that is not |
| // required to be supported by all Dawn backends and can only be used when it is enabled on the |
| // creation of device. |
| struct FeatureInfo { |
| const char* name; |
| const char* description; |
| const char* url; |
| // The enum of feature state, could be stable or experimental. Using an experimental feature |
| // requires the AllowUnsafeAPIs toggle to be enabled. |
| enum class FeatureState { Stable = 0, Experimental }; |
| FeatureState featureState; |
| }; |
| |
| // An adapter is an object that represent on possibility of creating devices in the system. |
| // Most of the time it will represent a combination of a physical GPU and an API. Not that the |
| // same GPU can be represented by multiple adapters but on different APIs. |
| // |
| // The underlying Dawn adapter is owned by the Dawn instance so this class is not RAII but just |
| // a reference to an underlying adapter. |
| class DAWN_NATIVE_EXPORT Adapter { |
| public: |
| Adapter(); |
| // NOLINTNEXTLINE(runtime/explicit) |
| Adapter(AdapterBase* impl); |
| ~Adapter(); |
| |
| Adapter(const Adapter& other); |
| Adapter& operator=(const Adapter& other); |
| |
| // Essentially webgpu.h's wgpuAdapterGetProperties while we don't have WGPUAdapter in |
| // dawn.json |
| void GetProperties(wgpu::AdapterProperties* properties) const; |
| void GetProperties(WGPUAdapterProperties* properties) const; |
| |
| std::vector<const char*> GetSupportedFeatures() const; |
| bool GetLimits(WGPUSupportedLimits* limits) const; |
| |
| void SetUseTieredLimits(bool useTieredLimits); |
| |
| // Check that the Adapter is able to support importing external images. This is necessary |
| // to implement the swapchain and interop APIs in Chromium. |
| bool SupportsExternalImages() const; |
| |
| explicit operator bool() const; |
| |
| // Create a device on this adapter. On an error, nullptr is returned. |
| WGPUDevice CreateDevice(const wgpu::DeviceDescriptor* deviceDescriptor); |
| WGPUDevice CreateDevice(const WGPUDeviceDescriptor* deviceDescriptor = nullptr); |
| |
| void RequestDevice(const wgpu::DeviceDescriptor* descriptor, |
| WGPURequestDeviceCallback callback, |
| void* userdata); |
| void RequestDevice(const WGPUDeviceDescriptor* descriptor, |
| WGPURequestDeviceCallback callback, |
| void* userdata); |
| void RequestDevice(std::nullptr_t descriptor, |
| WGPURequestDeviceCallback callback, |
| void* userdata) { |
| RequestDevice(static_cast<const wgpu::DeviceDescriptor*>(descriptor), callback, userdata); |
| } |
| |
| // Returns the underlying WGPUAdapter object. |
| WGPUAdapter Get() const; |
| |
| // Reset the backend device object for testing purposes. |
| void ResetInternalDeviceForTesting(); |
| |
| private: |
| AdapterBase* mImpl = nullptr; |
| }; |
| |
| // Base class for options passed to Instance::DiscoverPhysicalDevices. |
| struct DAWN_NATIVE_EXPORT PhysicalDeviceDiscoveryOptionsBase { |
| public: |
| const WGPUBackendType backendType; |
| |
| protected: |
| explicit PhysicalDeviceDiscoveryOptionsBase(WGPUBackendType type); |
| }; |
| |
| // Deprecated, use PhysicalDeviceDiscoveryOptionsBase instead. |
| // TODO(dawn:1774): Remove this. |
| using AdapterDiscoveryOptionsBase = PhysicalDeviceDiscoveryOptionsBase; |
| |
| enum BackendValidationLevel { Full, Partial, Disabled }; |
| |
| // Can be chained in InstanceDescriptor |
| struct DAWN_NATIVE_EXPORT DawnInstanceDescriptor : wgpu::ChainedStruct { |
| DawnInstanceDescriptor(); |
| static constexpr size_t kFirstMemberAlignment = |
| wgpu::detail::ConstexprMax(alignof(wgpu::ChainedStruct), alignof(uint32_t)); |
| alignas(kFirstMemberAlignment) uint32_t additionalRuntimeSearchPathsCount = 0; |
| const char* const* additionalRuntimeSearchPaths; |
| dawn::platform::Platform* platform = nullptr; |
| |
| // Equality operators, mostly for testing. Note that this tests |
| // strict pointer-pointer equality if the struct contains member pointers. |
| bool operator==(const DawnInstanceDescriptor& rhs) const; |
| }; |
| |
| // Represents a connection to dawn_native and is used for dependency injection, discovering |
| // system adapters and injecting custom adapters (like a Swiftshader Vulkan adapter). |
| // |
| // This is an RAII class for Dawn instances and also controls the lifetime of all adapters |
| // for this instance. |
| class DAWN_NATIVE_EXPORT Instance { |
| public: |
| explicit Instance(const WGPUInstanceDescriptor* desc = nullptr); |
| ~Instance(); |
| |
| Instance(const Instance& other) = delete; |
| Instance& operator=(const Instance& other) = delete; |
| |
| // Gather all physical devices in the system that can be accessed with no special options. |
| void DiscoverDefaultPhysicalDevices(); |
| |
| // Adds physical devices that can be discovered with the options provided (like a |
| // getProcAddress). The backend is chosen based on the type of the options used. Returns true on |
| // success. |
| bool DiscoverPhysicalDevices(const PhysicalDeviceDiscoveryOptionsBase* options); |
| |
| // Deprecated, use DiscoverDefaultPhysicalDevices and DiscoverPhysicalDevices instead. |
| // TODO(Dawn:1774): Remove these. |
| void DiscoverDefaultAdapters(); |
| bool DiscoverAdapters(const AdapterDiscoveryOptionsBase* options); |
| |
| // 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`. Adapter toggles descriptor can chained |
| // after options. |
| std::vector<Adapter> EnumerateAdapters(const WGPURequestAdapterOptions* options) const; |
| std::vector<Adapter> EnumerateAdapters( |
| const wgpu::RequestAdapterOptions* options = nullptr) const; |
| |
| // Deprecated. Call EnumerateAdapters instead. |
| std::vector<Adapter> GetAdapters() const; |
| |
| const ToggleInfo* GetToggleInfo(const char* toggleName); |
| const FeatureInfo* GetFeatureInfo(WGPUFeatureName feature); |
| |
| // Enables backend validation layers |
| void EnableBackendValidation(bool enableBackendValidation); |
| void SetBackendValidationLevel(BackendValidationLevel validationLevel); |
| |
| // Enable debug capture on Dawn startup |
| void EnableBeginCaptureOnStartup(bool beginCaptureOnStartup); |
| |
| // Enable / disable the adapter blocklist. |
| void EnableAdapterBlocklist(bool enable); |
| |
| uint64_t GetDeviceCountForTesting() const; |
| |
| // Returns the underlying WGPUInstance object. |
| WGPUInstance Get() const; |
| |
| private: |
| InstanceBase* mImpl = nullptr; |
| }; |
| |
| // Backend-agnostic API for dawn_native |
| DAWN_NATIVE_EXPORT const DawnProcTable& GetProcs(); |
| |
| // Query the names of all the toggles that are enabled in device |
| DAWN_NATIVE_EXPORT std::vector<const char*> GetTogglesUsed(WGPUDevice device); |
| |
| // Backdoor to get the number of lazy clears for testing |
| DAWN_NATIVE_EXPORT size_t GetLazyClearCountForTesting(WGPUDevice device); |
| |
| // Backdoor to get the number of deprecation warnings for testing |
| DAWN_NATIVE_EXPORT size_t GetDeprecationWarningCountForTesting(WGPUDevice device); |
| |
| // Backdoor to get the number of physical devices an instance knows about for testing |
| DAWN_NATIVE_EXPORT size_t GetPhysicalDeviceCountForTesting(WGPUInstance instance); |
| |
| // Query if texture has been initialized |
| DAWN_NATIVE_EXPORT bool IsTextureSubresourceInitialized( |
| WGPUTexture texture, |
| uint32_t baseMipLevel, |
| uint32_t levelCount, |
| uint32_t baseArrayLayer, |
| uint32_t layerCount, |
| WGPUTextureAspect aspect = WGPUTextureAspect_All); |
| |
| // Backdoor to get the order of the ProcMap for testing |
| DAWN_NATIVE_EXPORT std::vector<const char*> GetProcMapNamesForTesting(); |
| |
| DAWN_NATIVE_EXPORT bool DeviceTick(WGPUDevice device); |
| |
| DAWN_NATIVE_EXPORT bool InstanceProcessEvents(WGPUInstance instance); |
| |
| // ErrorInjector functions used for testing only. Defined in dawn_native/ErrorInjector.cpp |
| DAWN_NATIVE_EXPORT void EnableErrorInjector(); |
| DAWN_NATIVE_EXPORT void DisableErrorInjector(); |
| DAWN_NATIVE_EXPORT void ClearErrorInjector(); |
| DAWN_NATIVE_EXPORT uint64_t AcquireErrorInjectorCallCount(); |
| DAWN_NATIVE_EXPORT void InjectErrorAt(uint64_t index); |
| |
| // The different types of external images |
| enum ExternalImageType { |
| OpaqueFD, |
| DmaBuf, |
| IOSurface, |
| DXGISharedHandle, |
| D3D11Texture, |
| EGLImage, |
| GLTexture, |
| AHardwareBuffer, |
| Last = AHardwareBuffer, |
| }; |
| |
| // Common properties of external images |
| struct DAWN_NATIVE_EXPORT ExternalImageDescriptor { |
| public: |
| const WGPUTextureDescriptor* cTextureDescriptor; // Must match image creation params |
| bool isInitialized; // Whether the texture is initialized on import |
| ExternalImageType GetType() const; |
| |
| protected: |
| explicit ExternalImageDescriptor(ExternalImageType type); |
| |
| private: |
| ExternalImageType mType; |
| }; |
| |
| struct DAWN_NATIVE_EXPORT ExternalImageExportInfo { |
| public: |
| bool isInitialized = false; // Whether the texture is initialized after export |
| ExternalImageType GetType() const; |
| |
| protected: |
| explicit ExternalImageExportInfo(ExternalImageType type); |
| |
| private: |
| ExternalImageType mType; |
| }; |
| |
| DAWN_NATIVE_EXPORT bool CheckIsErrorForTesting(void* objectHandle); |
| |
| DAWN_NATIVE_EXPORT const char* GetObjectLabelForTesting(void* objectHandle); |
| |
| DAWN_NATIVE_EXPORT uint64_t GetAllocatedSizeForTesting(WGPUBuffer buffer); |
| |
| DAWN_NATIVE_EXPORT std::vector<const ToggleInfo*> AllToggleInfos(); |
| |
| DAWN_NATIVE_EXPORT FeatureInfo GetFeatureInfo(wgpu::FeatureName featureName); |
| |
| } // namespace dawn::native |
| |
| // Alias the DawnInstanceDescriptor up to wgpu. |
| // TODO(dawn:1374) Remove this aliasing once the usages are updated. |
| namespace wgpu { |
| using dawn::native::DawnInstanceDescriptor; |
| } // namespace wgpu |
| |
| #endif // INCLUDE_DAWN_NATIVE_DAWNNATIVE_H_ |