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- // Copyright 2022 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 "base/logging.h"
- #include "gpu/vulkan/vulkan_function_pointers.h"
- namespace gpu {
- VkSemaphore ImportVkSemaphoreHandle(VkDevice vk_device,
- SemaphoreHandle handle) {
- if (!handle.is_valid() ||
- handle.vk_handle_type() !=
- VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA) {
- 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;
- zx::event event = handle.TakeHandle();
- VkImportSemaphoreZirconHandleInfoFUCHSIA import = {
- VK_STRUCTURE_TYPE_IMPORT_SEMAPHORE_ZIRCON_HANDLE_INFO_FUCHSIA};
- import.semaphore = semaphore;
- import.handleType =
- VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA;
- import.zirconHandle = event.get();
- result = vkImportSemaphoreZirconHandleFUCHSIA(vk_device, &import);
- if (result != VK_SUCCESS) {
- vkDestroySemaphore(vk_device, semaphore, nullptr);
- return VK_NULL_HANDLE;
- }
- // Vulkan took ownership of the handle.
- std::ignore = event.release();
- return semaphore;
- }
- SemaphoreHandle GetVkSemaphoreHandle(
- VkDevice vk_device,
- VkSemaphore vk_semaphore,
- VkExternalSemaphoreHandleTypeFlagBits handle_type) {
- DCHECK_EQ(handle_type,
- VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA);
- // Create VkSemaphoreGetFdInfoKHR structure.
- VkSemaphoreGetZirconHandleInfoFUCHSIA info = {
- VK_STRUCTURE_TYPE_SEMAPHORE_GET_ZIRCON_HANDLE_INFO_FUCHSIA};
- info.semaphore = vk_semaphore;
- info.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA;
- zx_handle_t handle;
- VkResult result =
- vkGetSemaphoreZirconHandleFUCHSIA(vk_device, &info, &handle);
- if (result != VK_SUCCESS) {
- LOG(ERROR) << "vkGetSemaphoreFuchsiaHandleKHR failed : " << result;
- return gpu::SemaphoreHandle();
- }
- return gpu::SemaphoreHandle(
- VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_ZIRCON_EVENT_BIT_FUCHSIA,
- zx::event(handle));
- }
- } // namespace gpu
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