extensions/ext: Add VK_EXT_calibrated_timestamps extension

Changelog.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added `VK_EXT_calibrated_timestamps` device extension (#556)
 - Added `VK_KHR_get_surface_capabilities2` device extension (#530)
 
 ### Changed

ash/src/extensions/ext/calibrated_timestamps.rs

@@ -0,0 +1,65 @@
+use crate::prelude::{read_into_uninitialized_vector, VkResult};
+use crate::vk;
+use crate::{Entry, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct CalibratedTimestamps {
+ handle: vk::Instance,
+ fp: vk::ExtCalibratedTimestampsFn,
+}
+
+impl CalibratedTimestamps {
+ pub fn new(entry: &Entry, instance: &Instance) -> Self {
+ let handle = instance.handle();
+ let fp = vk::ExtCalibratedTimestampsFn::load(|name| unsafe {
+ mem::transmute(entry.get_instance_proc_addr(handle, name.as_ptr()))
+ });
+ Self { handle, fp }
+ }
+
+ #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetPhysicalDeviceCalibrateableTimeDomainsEXT.html>"]
+ pub unsafe fn get_physical_device_calibrateable_time_domains(
+ &self,
+ physical_device: vk::PhysicalDevice,
+ ) -> VkResult<Vec<vk::TimeDomainEXT>> {
+ read_into_uninitialized_vector(|count, data| {
+ self.fp
+ .get_physical_device_calibrateable_time_domains_ext(physical_device, count, data)
+ })
+ }
+
+ #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetCalibratedTimestampsEXT.html>"]
+ ///
+ /// Returns a tuple containing `(timestamps, max_deviation)`
+ pub unsafe fn get_calibrated_timestamps(
+ &self,
+ device: vk::Device,
+ info: &[vk::CalibratedTimestampInfoEXT],
+ ) -> VkResult<(Vec<u64>, Vec<u64>)> {
+ let mut timestamps = vec![0u64; info.len()];
+ let mut max_deviation = vec![0u64; info.len()];
+ self.fp
+ .get_calibrated_timestamps_ext(
+ device,
+ info.len() as u32,
+ info.as_ptr(),
+ timestamps.as_mut_ptr(),
+ max_deviation.as_mut_ptr(),
+ )
+ .result_with_success((timestamps, max_deviation))
+ }
+
+ pub fn name() -> &'static CStr {
+ vk::ExtCalibratedTimestampsFn::name()
+ }
+
+ pub fn fp(&self) -> &vk::ExtCalibratedTimestampsFn {
+ &self.fp
+ }
+
+ pub fn instance(&self) -> vk::Instance {
+ self.handle
+ }
+}

ash/src/extensions/ext/mod.rs

@@ -1,4 +1,5 @@
 pub use self::buffer_device_address::BufferDeviceAddress;
+pub use self::calibrated_timestamps::CalibratedTimestamps;
 #[allow(deprecated)]
 pub use self::debug_marker::DebugMarker;
 #[allow(deprecated)]
@@ -11,6 +12,7 @@ pub use self::physical_device_drm::PhysicalDeviceDrm;
 pub use self::tooling_info::ToolingInfo;
 
 mod buffer_device_address;
+mod calibrated_timestamps;
 #[deprecated(note = "Please use the [DebugUtils](struct.DebugUtils.html) extension instead.")]
 mod debug_marker;
 #[deprecated(note = "Please use the [DebugUtils](struct.DebugUtils.html) extension instead.")]