ash/extensions/ext/
calibrated_timestamps.rs

1//! <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_calibrated_timestamps.html>
2
3use crate::prelude::*;
4use crate::vk;
5use alloc::vec::Vec;
6use core::mem;
7
8impl crate::ext::calibrated_timestamps::Device {
9    /// <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/vkGetCalibratedTimestampsEXT.html>
10    ///
11    /// Returns a tuple containing `(timestamps, max_deviation)`
12    #[inline]
13    pub unsafe fn get_calibrated_timestamps(
14        &self,
15        info: &[vk::CalibratedTimestampInfoEXT<'_>],
16    ) -> VkResult<(Vec<u64>, u64)> {
17        let mut timestamps = Vec::with_capacity(info.len());
18        let mut max_deviation = mem::MaybeUninit::uninit();
19        let max_deviation = (self.fp.get_calibrated_timestamps_ext)(
20            self.handle,
21            info.len() as u32,
22            info.as_ptr(),
23            timestamps.as_mut_ptr(),
24            max_deviation.as_mut_ptr(),
25        )
26        .assume_init_on_success(max_deviation)?;
27        timestamps.set_len(info.len());
28        Ok((timestamps, max_deviation))
29    }
30}
31
32impl crate::ext::calibrated_timestamps::Instance {
33    /// <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceCalibrateableTimeDomainsEXT.html>
34    #[inline]
35    pub unsafe fn get_physical_device_calibrateable_time_domains(
36        &self,
37        physical_device: vk::PhysicalDevice,
38    ) -> VkResult<Vec<vk::TimeDomainEXT>> {
39        read_into_uninitialized_vector(|count, data| {
40            (self.fp.get_physical_device_calibrateable_time_domains_ext)(
41                physical_device,
42                count,
43                data,
44            )
45        })
46    }
47}
ash/extensions/ext/calibrated_timestamps.rs

ash/extensions/ext/
calibrated_timestamps.rs
