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//! <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_NV_coverage_reduction_mode.html>
use crate::prelude::*;
use crate::vk;
use core::mem;
use core::ptr;
impl crate::nv::coverage_reduction_mode::Instance {
/// Retrieve the number of elements to pass to [`get_physical_device_supported_framebuffer_mixed_samples_combinations()`][Self::get_physical_device_supported_framebuffer_mixed_samples_combinations()]
#[inline]
pub unsafe fn get_physical_device_supported_framebuffer_mixed_samples_combinations_len(
&self,
physical_device: vk::PhysicalDevice,
) -> VkResult<usize> {
let mut count = mem::MaybeUninit::uninit();
(self
.fp
.get_physical_device_supported_framebuffer_mixed_samples_combinations_nv)(
physical_device,
count.as_mut_ptr(),
ptr::null_mut(),
)
.assume_init_on_success(count)
.map(|c| c as usize)
}
///
/// Call [`get_physical_device_supported_framebuffer_mixed_samples_combinations_len()`][Self::get_physical_device_supported_framebuffer_mixed_samples_combinations_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_physical_device_supported_framebuffer_mixed_samples_combinations(
&self,
physical_device: vk::PhysicalDevice,
out: &mut [vk::FramebufferMixedSamplesCombinationNV<'_>],
) -> VkResult<()> {
let mut count = out.len() as u32;
(self
.fp
.get_physical_device_supported_framebuffer_mixed_samples_combinations_nv)(
physical_device,
&mut count,
out.as_mut_ptr(),
)
.result()?;
assert_eq!(count as usize, out.len());
Ok(())
}
}