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// Copyright 2022 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 "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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