180 lines
6.0 KiB
C++
180 lines
6.0 KiB
C++
// Copyright 2018 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_DAWN_NATIVE_INSTANCE_H_
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#define SRC_DAWN_NATIVE_INSTANCE_H_
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#include <array>
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#include <memory>
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#include <mutex>
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#include <set>
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include "dawn/common/RefCounted.h"
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#include "dawn/common/ityp_bitset.h"
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#include "dawn/native/Adapter.h"
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#include "dawn/native/BackendConnection.h"
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#include "dawn/native/BlobCache.h"
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#include "dawn/native/Features.h"
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#include "dawn/native/RefCountedWithExternalCount.h"
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#include "dawn/native/Toggles.h"
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#include "dawn/native/dawn_platform.h"
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namespace dawn::platform {
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class Platform;
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} // namespace dawn::platform
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namespace dawn::native {
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class CallbackTaskManager;
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class DeviceBase;
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class Surface;
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class XlibXcbFunctions;
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using BackendsBitset = ityp::bitset<wgpu::BackendType, kEnumCount<wgpu::BackendType>>;
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InstanceBase* APICreateInstance(const InstanceDescriptor* descriptor);
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// This is called InstanceBase for consistency across the frontend, even if the backends don't
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// specialize this class.
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class InstanceBase final : public RefCountedWithExternalCount {
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public:
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static Ref<InstanceBase> Create(const InstanceDescriptor* descriptor = nullptr);
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void APIRequestAdapter(const RequestAdapterOptions* options,
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WGPURequestAdapterCallback callback,
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void* userdata);
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void DiscoverDefaultPhysicalDevices();
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bool DiscoverPhysicalDevices(const PhysicalDeviceDiscoveryOptionsBase* options);
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// Return adapters created on every known physical device.
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std::vector<Ref<AdapterBase>> GetAdapters() const;
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// Used to handle error that happen up to device creation.
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bool ConsumedError(MaybeError maybeError);
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template <typename T>
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bool ConsumedError(ResultOrError<T> resultOrError, T* result) {
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if (resultOrError.IsError()) {
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ConsumeError(resultOrError.AcquireError());
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return true;
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}
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*result = resultOrError.AcquireSuccess();
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return false;
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}
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const TogglesState& GetTogglesState() const;
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// Used to query the details of a toggle. Return nullptr if toggleName is not a valid name
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// of a toggle supported in Dawn.
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const ToggleInfo* GetToggleInfo(const char* toggleName);
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Toggle ToggleNameToEnum(const char* toggleName);
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// Used to query the details of an feature. Return nullptr if featureName is not a valid
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// name of an feature supported in Dawn.
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const FeatureInfo* GetFeatureInfo(wgpu::FeatureName feature);
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bool IsBackendValidationEnabled() const;
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void SetBackendValidationLevel(BackendValidationLevel level);
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BackendValidationLevel GetBackendValidationLevel() const;
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void EnableBeginCaptureOnStartup(bool beginCaptureOnStartup);
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bool IsBeginCaptureOnStartupEnabled() const;
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// TODO(crbug.com/dawn/1495): Move this to a Toggle, perhaps on RequestAdapterOptions
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// after Toggle refactor is complete.
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void EnableAdapterBlocklist(bool enable);
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bool IsAdapterBlocklistEnabled() const;
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// Testing only API that is NOT thread-safe.
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void SetPlatformForTesting(dawn::platform::Platform* platform);
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dawn::platform::Platform* GetPlatform();
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BlobCache* GetBlobCache(bool enabled = true);
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uint64_t GetDeviceCountForTesting() const;
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void AddDevice(DeviceBase* device);
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void RemoveDevice(DeviceBase* device);
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const std::vector<std::string>& GetRuntimeSearchPaths() const;
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const Ref<CallbackTaskManager>& GetCallbackTaskManager() const;
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// Get backend-independent libraries that need to be loaded dynamically.
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const XlibXcbFunctions* GetOrCreateXlibXcbFunctions();
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// Dawn API
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Surface* APICreateSurface(const SurfaceDescriptor* descriptor);
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bool APIProcessEvents();
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private:
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explicit InstanceBase(const TogglesState& instanceToggles);
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~InstanceBase() override;
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void WillDropLastExternalRef() override;
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InstanceBase(const InstanceBase& other) = delete;
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InstanceBase& operator=(const InstanceBase& other) = delete;
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MaybeError Initialize(const InstanceDescriptor* descriptor);
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void SetPlatform(dawn::platform::Platform* platform);
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// Lazily creates connections to all backends that have been compiled.
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void EnsureBackendConnection(wgpu::BackendType backendType);
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MaybeError DiscoverPhysicalDevicesInternal(const PhysicalDeviceDiscoveryOptionsBase* options);
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ResultOrError<Ref<AdapterBase>> RequestAdapterInternal(const RequestAdapterOptions* options);
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void ConsumeError(std::unique_ptr<ErrorData> error);
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std::vector<std::string> mRuntimeSearchPaths;
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BackendsBitset mBackendsConnected;
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bool mDiscoveredDefaultAdapters = false;
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bool mBeginCaptureOnStartup = false;
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bool mEnableAdapterBlocklist = false;
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BackendValidationLevel mBackendValidationLevel = BackendValidationLevel::Disabled;
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dawn::platform::Platform* mPlatform = nullptr;
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std::unique_ptr<dawn::platform::Platform> mDefaultPlatform;
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std::unique_ptr<BlobCache> mBlobCache;
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BlobCache mPassthroughBlobCache;
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std::vector<std::unique_ptr<BackendConnection>> mBackends;
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std::vector<Ref<PhysicalDeviceBase>> mPhysicalDevices;
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TogglesState mToggles;
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FeaturesInfo mFeaturesInfo;
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TogglesInfo mTogglesInfo;
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#if defined(DAWN_USE_X11)
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std::unique_ptr<XlibXcbFunctions> mXlibXcbFunctions;
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#endif // defined(DAWN_USE_X11)
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Ref<CallbackTaskManager> mCallbackTaskManager;
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std::set<DeviceBase*> mDevicesList;
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mutable std::mutex mDevicesListMutex;
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};
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} // namespace dawn::native
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#endif // SRC_DAWN_NATIVE_INSTANCE_H_
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