ash/extensions/khr/
timeline_semaphore.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 TimelineSemaphore {
9    handle: vk::Device,
10    fp: vk::KhrTimelineSemaphoreFn,
11}
12
13impl TimelineSemaphore {
14    pub fn new(instance: &Instance, device: &Device) -> Self {
15        let handle = device.handle();
16        let fp = vk::KhrTimelineSemaphoreFn::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/vkGetSemaphoreCounterValue.html>
23    pub unsafe fn get_semaphore_counter_value(&self, semaphore: vk::Semaphore) -> VkResult<u64> {
24        let mut value = 0;
25        (self.fp.get_semaphore_counter_value_khr)(self.handle, semaphore, &mut value)
26            .result_with_success(value)
27    }
28
29    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkWaitSemaphores.html>
30    pub unsafe fn wait_semaphores(
31        &self,
32        wait_info: &vk::SemaphoreWaitInfo,
33        timeout: u64,
34    ) -> VkResult<()> {
35        (self.fp.wait_semaphores_khr)(self.handle, wait_info, timeout).result()
36    }
37
38    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkSignalSemaphore.html>
39    pub unsafe fn signal_semaphore(&self, signal_info: &vk::SemaphoreSignalInfo) -> VkResult<()> {
40        (self.fp.signal_semaphore_khr)(self.handle, signal_info).result()
41    }
42
43    pub const fn name() -> &'static CStr {
44        vk::KhrTimelineSemaphoreFn::name()
45    }
46
47    pub fn fp(&self) -> &vk::KhrTimelineSemaphoreFn {
48        &self.fp
49    }
50
51    pub fn device(&self) -> vk::Device {
52        self.handle
53    }
54}
ash/extensions/khr/timeline_semaphore.rs

ash/extensions/khr/
timeline_semaphore.rs
