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// Copyright 2019 The Chromium Authors
// 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));
}
bool IsVkOpaqueExternalSemaphoreSupported(VulkanDeviceQueue* device_queue) {
return IsVkExternalSemaphoreHandleTypeSupported(
device_queue, VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT);
}
VkSemaphore CreateVkOpaqueExternalSemaphore(VkDevice vk_device) {
return CreateExternalVkSemaphore(
vk_device, VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT);
}
SemaphoreHandle ExportVkOpaqueExternalSemaphore(VkDevice vk_device,
VkSemaphore vk_semaphore) {
return GetVkSemaphoreHandle(
vk_device, vk_semaphore,
VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT);
}
} // namespace gpu
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