ash/extensions/khr/
external_fence_win32.rs

1use crate::prelude::*;
2use crate::vk;
3use crate::{Device, Instance};
4use std::ffi::CStr;
5use std::mem;
6use std::ptr;
7
8/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_KHR_external_fence_win32.html>
9#[derive(Clone)]
10pub struct ExternalFenceWin32 {
11    handle: vk::Device,
12    fp: vk::KhrExternalFenceWin32Fn,
13}
14
15impl ExternalFenceWin32 {
16    pub fn new(instance: &Instance, device: &Device) -> Self {
17        let handle = device.handle();
18        let fp = vk::KhrExternalFenceWin32Fn::load(|name| unsafe {
19            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
20        });
21        Self { handle, fp }
22    }
23
24    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkImportFenceWin32HandleKHR.html>
25    pub unsafe fn import_fence_win32_handle(
26        &self,
27        import_info: &vk::ImportFenceWin32HandleInfoKHR,
28    ) -> VkResult<()> {
29        (self.fp.import_fence_win32_handle_khr)(self.handle, import_info).result()
30    }
31
32    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetFenceWin32HandleKHR.html>
33    pub unsafe fn get_fence_win32_handle(
34        &self,
35        get_info: &vk::FenceGetWin32HandleInfoKHR,
36    ) -> VkResult<vk::HANDLE> {
37        let mut handle = ptr::null_mut();
38        (self.fp.get_fence_win32_handle_khr)(self.handle, get_info, &mut handle)
39            .result_with_success(handle)
40    }
41
42    pub const fn name() -> &'static CStr {
43        vk::KhrExternalFenceWin32Fn::name()
44    }
45
46    pub fn fp(&self) -> &vk::KhrExternalFenceWin32Fn {
47        &self.fp
48    }
49
50    pub fn device(&self) -> vk::Device {
51        self.handle
52    }
53}