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- // Copyright 2019 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "gpu/vulkan/vulkan_util.h"
- #include <tuple>
- #include "base/logging.h"
- #include "gpu/vulkan/vulkan_function_pointers.h"
- namespace gpu {
- VkSemaphore ImportVkSemaphoreHandle(VkDevice vk_device,
- SemaphoreHandle handle) {
- auto handle_type = handle.vk_handle_type();
- if (!handle.is_valid() ||
- handle_type != VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT) {
- return VK_NULL_HANDLE;
- }
- VkSemaphore semaphore = VK_NULL_HANDLE;
- VkSemaphoreCreateInfo info = {VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO};
- VkResult result = vkCreateSemaphore(vk_device, &info, nullptr, &semaphore);
- if (result != VK_SUCCESS)
- return VK_NULL_HANDLE;
- auto win32_handle = handle.TakeHandle();
- VkImportSemaphoreWin32HandleInfoKHR import = {
- .sType = VK_STRUCTURE_TYPE_IMPORT_SEMAPHORE_WIN32_HANDLE_INFO_KHR,
- .semaphore = semaphore,
- .handleType = handle_type,
- .handle = win32_handle.Get(),
- };
- result = vkImportSemaphoreWin32HandleKHR(vk_device, &import);
- if (result != VK_SUCCESS) {
- vkDestroySemaphore(vk_device, semaphore, nullptr);
- return VK_NULL_HANDLE;
- }
- // If import is successful, the VkSemaphore takes the ownership of the fd.
- std::ignore = win32_handle.Take();
- return semaphore;
- }
- SemaphoreHandle GetVkSemaphoreHandle(
- VkDevice vk_device,
- VkSemaphore vk_semaphore,
- VkExternalSemaphoreHandleTypeFlagBits handle_type) {
- VkSemaphoreGetWin32HandleInfoKHR info = {
- .sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_FD_INFO_KHR,
- .semaphore = vk_semaphore,
- .handleType = handle_type,
- };
- HANDLE handle = nullptr;
- VkResult result = vkGetSemaphoreWin32HandleKHR(vk_device, &info, &handle);
- if (result != VK_SUCCESS) {
- LOG(ERROR) << "vkGetSemaphoreFdKHR failed : " << result;
- return SemaphoreHandle();
- }
- return SemaphoreHandle(handle_type, base::win::ScopedHandle(handle));
- }
- } // namespace gpu
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