Revision control
Copy as Markdown
Other Tools
//! <https://registry.khronos.org//vulkan/specs/1.3-extensions/man/html/VK_KHR_calibrated_timestamps.html>
use crate::prelude::*;
use crate::vk;
use alloc::vec::Vec;
use core::mem;
impl crate::khr::calibrated_timestamps::Device {
/// <https://registry.khronos.org//vulkan/specs/1.3-extensions/man/html/vkGetCalibratedTimestampsKHR.html>
///
/// Returns a tuple containing `(timestamps, max_deviation)`
#[inline]
pub unsafe fn get_calibrated_timestamps(
&self,
info: &[vk::CalibratedTimestampInfoKHR<'_>],
) -> VkResult<(Vec<u64>, u64)> {
let mut timestamps = Vec::with_capacity(info.len());
let mut max_deviation = mem::MaybeUninit::uninit();
let max_deviation = (self.fp.get_calibrated_timestamps_khr)(
self.handle,
info.len() as u32,
info.as_ptr(),
timestamps.as_mut_ptr(),
max_deviation.as_mut_ptr(),
)
.assume_init_on_success(max_deviation)?;
timestamps.set_len(info.len());
Ok((timestamps, max_deviation))
}
}
impl crate::khr::calibrated_timestamps::Instance {
#[inline]
pub unsafe fn get_physical_device_calibrateable_time_domains(
&self,
physical_device: vk::PhysicalDevice,
) -> VkResult<Vec<vk::TimeDomainKHR>> {
read_into_uninitialized_vector(|count, data| {
(self.fp.get_physical_device_calibrateable_time_domains_khr)(
physical_device,
count,
data,
)
})
}
}