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use crate::prelude::*;
use crate::vk;
use crate::{Device, Instance};
use std::ffi::CStr;
use std::mem;
#[derive(Clone)]
pub struct TimelineSemaphore {
handle: vk::Device,
fp: vk::KhrTimelineSemaphoreFn,
}
impl TimelineSemaphore {
pub fn new(instance: &Instance, device: &Device) -> Self {
let handle = device.handle();
let fp = vk::KhrTimelineSemaphoreFn::load(|name| unsafe {
mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
});
Self { handle, fp }
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetSemaphoreCounterValue.html>
#[inline]
pub unsafe fn get_semaphore_counter_value(&self, semaphore: vk::Semaphore) -> VkResult<u64> {
let mut value = 0;
(self.fp.get_semaphore_counter_value_khr)(self.handle, semaphore, &mut value)
.result_with_success(value)
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkWaitSemaphores.html>
#[inline]
pub unsafe fn wait_semaphores(
&self,
wait_info: &vk::SemaphoreWaitInfo,
timeout: u64,
) -> VkResult<()> {
(self.fp.wait_semaphores_khr)(self.handle, wait_info, timeout).result()
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkSignalSemaphore.html>
#[inline]
pub unsafe fn signal_semaphore(&self, signal_info: &vk::SemaphoreSignalInfo) -> VkResult<()> {
(self.fp.signal_semaphore_khr)(self.handle, signal_info).result()
}
#[inline]
pub const fn name() -> &'static CStr {
vk::KhrTimelineSemaphoreFn::name()
}
#[inline]
pub fn fp(&self) -> &vk::KhrTimelineSemaphoreFn {
&self.fp
}
#[inline]
pub fn device(&self) -> vk::Device {
self.handle
}
}
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