1 // Copyright 2019 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef DAWNNATIVE_VULKAN_EXTERNALSEMAPHORE_SERVICE_H_ 16 #define DAWNNATIVE_VULKAN_EXTERNALSEMAPHORE_SERVICE_H_ 17 18 #include "common/vulkan_platform.h" 19 #include "dawn_native/Error.h" 20 #include "dawn_native/vulkan/ExternalHandle.h" 21 #include "dawn_native/vulkan/VulkanFunctions.h" 22 #include "dawn_native/vulkan/VulkanInfo.h" 23 24 namespace dawn_native { namespace vulkan { 25 class Device; 26 }} // namespace dawn_native::vulkan 27 28 namespace dawn_native { namespace vulkan { namespace external_semaphore { 29 30 class Service { 31 public: 32 explicit Service(Device* device); 33 ~Service(); 34 35 static bool CheckSupport(const VulkanDeviceInfo& deviceInfo, 36 VkPhysicalDevice physicalDevice, 37 const VulkanFunctions& fn); 38 39 // True if the device reports it supports this feature 40 bool Supported(); 41 42 // Given an external handle, import it into a VkSemaphore 43 ResultOrError<VkSemaphore> ImportSemaphore(ExternalSemaphoreHandle handle); 44 45 // Create a VkSemaphore that is exportable into an external handle later 46 ResultOrError<VkSemaphore> CreateExportableSemaphore(); 47 48 // Export a VkSemaphore into an external handle 49 ResultOrError<ExternalSemaphoreHandle> ExportSemaphore(VkSemaphore semaphore); 50 51 private: 52 Device* mDevice = nullptr; 53 54 // True if early checks pass that determine if the service is supported 55 bool mSupported = false; 56 }; 57 58 }}} // namespace dawn_native::vulkan::external_semaphore 59 60 #endif // DAWNNATIVE_VULKAN_EXTERNALSEMAPHORE_SERVICE_H_ 61