ash/extensions/nv/
coverage_reduction_mode.rs

1//! <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_NV_coverage_reduction_mode.html>
2
3use crate::prelude::*;
4use crate::vk;
5use core::mem;
6use core::ptr;
7
8impl crate::nv::coverage_reduction_mode::Instance {
9    /// 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()]
10    #[inline]
11    pub unsafe fn get_physical_device_supported_framebuffer_mixed_samples_combinations_len(
12        &self,
13        physical_device: vk::PhysicalDevice,
14    ) -> VkResult<usize> {
15        let mut count = mem::MaybeUninit::uninit();
16        (self
17            .fp
18            .get_physical_device_supported_framebuffer_mixed_samples_combinations_nv)(
19            physical_device,
20            count.as_mut_ptr(),
21            ptr::null_mut(),
22        )
23        .assume_init_on_success(count)
24        .map(|c| c as usize)
25    }
26
27    /// <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceSupportedFramebufferMixedSamplesCombinationsNV.html>
28    ///
29    /// 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`.
30    /// Be sure to [`Default::default()`]-initialize these elements and optionally set their `p_next` pointer.
31    #[inline]
32    pub unsafe fn get_physical_device_supported_framebuffer_mixed_samples_combinations(
33        &self,
34        physical_device: vk::PhysicalDevice,
35        out: &mut [vk::FramebufferMixedSamplesCombinationNV<'_>],
36    ) -> VkResult<()> {
37        let mut count = out.len() as u32;
38        (self
39            .fp
40            .get_physical_device_supported_framebuffer_mixed_samples_combinations_nv)(
41            physical_device,
42            &mut count,
43            out.as_mut_ptr(),
44        )
45        .result()?;
46        assert_eq!(count as usize, out.len());
47        Ok(())
48    }
49}
ash/extensions/nv/coverage_reduction_mode.rs

ash/extensions/nv/
coverage_reduction_mode.rs
