use crate::vk;
use crate::{Device, Instance};
use std::ffi::CStr;
use std::mem;
use std::ptr;
#[derive(Clone)]
pub struct GetMemoryRequirements2 {
handle: vk::Device,
fp: vk::KhrGetMemoryRequirements2Fn,
}
impl GetMemoryRequirements2 {
pub fn new(instance: &Instance, device: &Device) -> Self {
let handle = device.handle();
let fp = vk::KhrGetMemoryRequirements2Fn::load(|name| unsafe {
mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
});
Self { handle, fp }
}
#[inline]
pub unsafe fn get_buffer_memory_requirements2(
&self,
info: &vk::BufferMemoryRequirementsInfo2KHR,
memory_requirements: &mut vk::MemoryRequirements2KHR,
) {
(self.fp.get_buffer_memory_requirements2_khr)(self.handle, info, memory_requirements);
}
#[inline]
pub unsafe fn get_image_memory_requirements2(
&self,
info: &vk::ImageMemoryRequirementsInfo2KHR,
memory_requirements: &mut vk::MemoryRequirements2KHR,
) {
(self.fp.get_image_memory_requirements2_khr)(self.handle, info, memory_requirements);
}
#[inline]
pub unsafe fn get_image_sparse_memory_requirements2_len(
&self,
info: &vk::ImageSparseMemoryRequirementsInfo2KHR,
) -> usize {
let mut count = 0;
(self.fp.get_image_sparse_memory_requirements2_khr)(
self.handle,
info,
&mut count,
ptr::null_mut(),
);
count as usize
}
#[inline]
pub unsafe fn get_image_sparse_memory_requirements2(
&self,
info: &vk::ImageSparseMemoryRequirementsInfo2KHR,
out: &mut [vk::SparseImageMemoryRequirements2KHR],
) {
let mut count = out.len() as u32;
(self.fp.get_image_sparse_memory_requirements2_khr)(
self.handle,
info,
&mut count,
out.as_mut_ptr(),
);
assert_eq!(count as usize, out.len());
}
#[inline]
pub const fn name() -> &'static CStr {
vk::KhrGetMemoryRequirements2Fn::name()
}
#[inline]
pub fn fp(&self) -> &vk::KhrGetMemoryRequirements2Fn {
&self.fp
}
#[inline]
pub fn device(&self) -> vk::Device {
self.handle
}
}