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use crate::vk;
use crate::{Device, Instance};
use std::ffi::CStr;
use std::mem;
#[derive(Clone)]
pub struct Maintenance4 {
handle: vk::Device,
fp: vk::KhrMaintenance4Fn,
}
impl Maintenance4 {
pub fn new(instance: &Instance, device: &Device) -> Self {
let handle = device.handle();
let fp = vk::KhrMaintenance4Fn::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/vkGetDeviceBufferMemoryRequirementsKHR.html>
#[inline]
pub unsafe fn get_device_buffer_memory_requirements(
&self,
create_info: &vk::DeviceBufferMemoryRequirementsKHR,
out: &mut vk::MemoryRequirements2,
) {
(self.fp.get_device_buffer_memory_requirements_khr)(self.handle, create_info, out)
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetDeviceImageMemoryRequirementsKHR.html>
#[inline]
pub unsafe fn get_device_image_memory_requirements(
&self,
create_info: &vk::DeviceImageMemoryRequirementsKHR,
out: &mut vk::MemoryRequirements2,
) {
(self.fp.get_device_image_memory_requirements_khr)(self.handle, create_info, out)
}
/// Retrieve the number of elements to pass to [`get_device_image_sparse_memory_requirements()`][Self::get_device_image_sparse_memory_requirements()]
#[inline]
pub unsafe fn get_device_image_sparse_memory_requirements_len(
&self,
create_info: &vk::DeviceImageMemoryRequirementsKHR,
) -> usize {
let mut count = 0;
(self.fp.get_device_image_sparse_memory_requirements_khr)(
self.handle,
create_info,
&mut count,
std::ptr::null_mut(),
);
count as usize
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetDeviceImageSparseMemoryRequirementsKHR.html>
///
/// Call [`get_device_image_sparse_memory_requirements_len()`][Self::get_device_image_sparse_memory_requirements_len()] to query the number of elements to pass to `out`.
/// Be sure to [`Default::default()`]-initialize these elements and optionally set their `p_next` pointer.
#[inline]
pub unsafe fn get_device_image_sparse_memory_requirements(
&self,
create_info: &vk::DeviceImageMemoryRequirementsKHR,
out: &mut [vk::SparseImageMemoryRequirements2],
) {
let mut count = out.len() as u32;
(self.fp.get_device_image_sparse_memory_requirements_khr)(
self.handle,
create_info,
&mut count,
out.as_mut_ptr(),
);
assert_eq!(count as usize, out.len());
}
#[inline]
pub const fn name() -> &'static CStr {
vk::KhrMaintenance4Fn::name()
}
#[inline]
pub fn fp(&self) -> &vk::KhrMaintenance4Fn {
&self.fp
}
#[inline]
pub fn device(&self) -> vk::Device {
self.handle
}
}
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