Revision control
Copy as Markdown
Other Tools
use crate::vk;
use core::mem;
use core::ptr;
impl crate::khr::maintenance4::Device {
#[inline]
pub unsafe fn get_device_buffer_memory_requirements(
&self,
memory_requirements: &vk::DeviceBufferMemoryRequirementsKHR<'_>,
out: &mut vk::MemoryRequirements2<'_>,
) {
(self.fp.get_device_buffer_memory_requirements_khr)(self.handle, memory_requirements, out)
}
#[inline]
pub unsafe fn get_device_image_memory_requirements(
&self,
memory_requirements: &vk::DeviceImageMemoryRequirementsKHR<'_>,
out: &mut vk::MemoryRequirements2<'_>,
) {
(self.fp.get_device_image_memory_requirements_khr)(self.handle, memory_requirements, 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,
memory_requirements: &vk::DeviceImageMemoryRequirementsKHR<'_>,
) -> usize {
let mut count = mem::MaybeUninit::uninit();
(self.fp.get_device_image_sparse_memory_requirements_khr)(
self.handle,
memory_requirements,
count.as_mut_ptr(),
ptr::null_mut(),
);
count.assume_init() as usize
}
///
/// 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,
memory_requirements: &vk::DeviceImageMemoryRequirementsKHR<'_>,
out: &mut [vk::SparseImageMemoryRequirements2<'_>],
) {
let mut count = out.len() as u32;
(self.fp.get_device_image_sparse_memory_requirements_khr)(
self.handle,
memory_requirements,
&mut count,
out.as_mut_ptr(),
);
assert_eq!(count as usize, out.len());
}
}