1 use crate::prelude::*;
2 use crate::vk;
3 use crate::{Device, Instance};
4 use std::ffi::CStr;
5 use std::mem;
6 
7 #[derive(Clone)]
8 pub struct ExternalSemaphoreFd {
9     handle: vk::Device,
10     fp: vk::KhrExternalSemaphoreFdFn,
11 }
12 
13 impl ExternalSemaphoreFd {
new(instance: &Instance, device: &Device) -> Self14     pub fn new(instance: &Instance, device: &Device) -> Self {
15         let handle = device.handle();
16         let fp = vk::KhrExternalSemaphoreFdFn::load(|name| unsafe {
17             mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
18         });
19         Self { handle, fp }
20     }
21 
22     /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkImportSemaphoreFdKHR.html>
23     #[inline]
import_semaphore_fd( &self, import_info: &vk::ImportSemaphoreFdInfoKHR, ) -> VkResult<()>24     pub unsafe fn import_semaphore_fd(
25         &self,
26         import_info: &vk::ImportSemaphoreFdInfoKHR,
27     ) -> VkResult<()> {
28         (self.fp.import_semaphore_fd_khr)(self.handle, import_info).result()
29     }
30 
31     /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetSemaphoreFdKHR.html>
32     #[inline]
get_semaphore_fd(&self, get_info: &vk::SemaphoreGetFdInfoKHR) -> VkResult<i32>33     pub unsafe fn get_semaphore_fd(&self, get_info: &vk::SemaphoreGetFdInfoKHR) -> VkResult<i32> {
34         let mut fd = -1;
35         (self.fp.get_semaphore_fd_khr)(self.handle, get_info, &mut fd).result_with_success(fd)
36     }
37 
38     #[inline]
name() -> &'static CStr39     pub const fn name() -> &'static CStr {
40         vk::KhrExternalSemaphoreFdFn::name()
41     }
42 
43     #[inline]
fp(&self) -> &vk::KhrExternalSemaphoreFdFn44     pub fn fp(&self) -> &vk::KhrExternalSemaphoreFdFn {
45         &self.fp
46     }
47 
48     #[inline]
device(&self) -> vk::Device49     pub fn device(&self) -> vk::Device {
50         self.handle
51     }
52 }
53