| // 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. |
| |
| #ifndef SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICE_H_ |
| #define SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICE_H_ |
| |
| #include <memory> |
| |
| #include "dawn/native/Error.h" |
| #include "dawn/native/vulkan/ExternalHandle.h" |
| |
| namespace dawn::native::vulkan { |
| class Device; |
| struct VulkanDeviceInfo; |
| struct VulkanFunctions; |
| } // namespace dawn::native::vulkan |
| |
| namespace dawn::native::vulkan::external_semaphore { |
| class ServiceImplementation; |
| |
| class Service { |
| public: |
| explicit Service(Device* device); |
| ~Service(); |
| |
| static bool CheckSupport(const VulkanDeviceInfo& deviceInfo, |
| VkPhysicalDevice physicalDevice, |
| const VulkanFunctions& fn); |
| void CloseHandle(ExternalSemaphoreHandle handle); |
| |
| // True if the device reports it supports this feature |
| bool Supported(); |
| |
| // Given an external handle, import it into a VkSemaphore |
| ResultOrError<VkSemaphore> ImportSemaphore(ExternalSemaphoreHandle handle); |
| |
| // Create a VkSemaphore that is exportable into an external handle later |
| ResultOrError<VkSemaphore> CreateExportableSemaphore(); |
| |
| // Export a VkSemaphore into an external handle |
| ResultOrError<ExternalSemaphoreHandle> ExportSemaphore(VkSemaphore semaphore); |
| |
| // Duplicate a new external handle from the given one. |
| ExternalSemaphoreHandle DuplicateHandle(ExternalSemaphoreHandle handle); |
| |
| private: |
| // Linux, ChromeOS and Android use FD semaphore and Fuchia uses ZirconHandle. |
| std::unique_ptr<ServiceImplementation> mServiceImpl; |
| }; |
| |
| } // namespace dawn::native::vulkan::external_semaphore |
| |
| #endif // SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICE_H_ |