ash/extensions/khr/
external_semaphore_fd.rs

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1use crate::prelude::*;
2use crate::vk;
3use crate::{Device, Instance};
4use std::ffi::CStr;
5use std::mem;
6
7#[derive(Clone)]
8pub struct ExternalSemaphoreFd {
9    handle: vk::Device,
10    fp: vk::KhrExternalSemaphoreFdFn,
11}
12
13impl ExternalSemaphoreFd {
14    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    pub unsafe fn import_semaphore_fd(
24        &self,
25        import_info: &vk::ImportSemaphoreFdInfoKHR,
26    ) -> VkResult<()> {
27        (self.fp.import_semaphore_fd_khr)(self.handle, import_info).result()
28    }
29
30    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetSemaphoreFdKHR.html>
31    pub unsafe fn get_semaphore_fd(&self, get_info: &vk::SemaphoreGetFdInfoKHR) -> VkResult<i32> {
32        let mut fd = -1;
33        (self.fp.get_semaphore_fd_khr)(self.handle, get_info, &mut fd).result_with_success(fd)
34    }
35
36    pub const fn name() -> &'static CStr {
37        vk::KhrExternalSemaphoreFdFn::name()
38    }
39
40    pub fn fp(&self) -> &vk::KhrExternalSemaphoreFdFn {
41        &self.fp
42    }
43
44    pub fn device(&self) -> vk::Device {
45        self.handle
46    }
47}
ash/extensions/khr/external_semaphore_fd.rs

ash/extensions/khr/
external_semaphore_fd.rs
