ash/extensions/khr/
get_memory_requirements2.rs

1use crate::vk;
2use crate::{Device, Instance};
3use std::ffi::CStr;
4use std::mem;
5use std::ptr;
6
7#[derive(Clone)]
8pub struct GetMemoryRequirements2 {
9    handle: vk::Device,
10    fp: vk::KhrGetMemoryRequirements2Fn,
11}
12
13impl GetMemoryRequirements2 {
14    pub fn new(instance: &Instance, device: &Device) -> Self {
15        let handle = device.handle();
16        let fp = vk::KhrGetMemoryRequirements2Fn::load(|name| unsafe {
17            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
18        });
19        Self { handle, fp }
20    }
21
22    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetBufferMemoryRequirements2KHR.html>
23    #[inline]
24    pub unsafe fn get_buffer_memory_requirements2(
25        &self,
26        info: &vk::BufferMemoryRequirementsInfo2KHR,
27        memory_requirements: &mut vk::MemoryRequirements2KHR,
28    ) {
29        (self.fp.get_buffer_memory_requirements2_khr)(self.handle, info, memory_requirements);
30    }
31
32    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetImageMemoryRequirements2KHR.html>
33    #[inline]
34    pub unsafe fn get_image_memory_requirements2(
35        &self,
36        info: &vk::ImageMemoryRequirementsInfo2KHR,
37        memory_requirements: &mut vk::MemoryRequirements2KHR,
38    ) {
39        (self.fp.get_image_memory_requirements2_khr)(self.handle, info, memory_requirements);
40    }
41
42    /// Retrieve the number of elements to pass to [`get_image_sparse_memory_requirements2()`][Self::get_image_sparse_memory_requirements2()]
43    #[inline]
44    pub unsafe fn get_image_sparse_memory_requirements2_len(
45        &self,
46        info: &vk::ImageSparseMemoryRequirementsInfo2KHR,
47    ) -> usize {
48        let mut count = 0;
49        (self.fp.get_image_sparse_memory_requirements2_khr)(
50            self.handle,
51            info,
52            &mut count,
53            ptr::null_mut(),
54        );
55        count as usize
56    }
57
58    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetImageSparseMemoryRequirements2KHR.html>
59    ///
60    /// Call [`get_image_sparse_memory_requirements2_len()`][Self::get_image_sparse_memory_requirements2_len()] to query the number of elements to pass to `out`.
61    /// Be sure to [`Default::default()`]-initialize these elements and optionally set their `p_next` pointer.
62    #[inline]
63    pub unsafe fn get_image_sparse_memory_requirements2(
64        &self,
65        info: &vk::ImageSparseMemoryRequirementsInfo2KHR,
66        out: &mut [vk::SparseImageMemoryRequirements2KHR],
67    ) {
68        let mut count = out.len() as u32;
69        (self.fp.get_image_sparse_memory_requirements2_khr)(
70            self.handle,
71            info,
72            &mut count,
73            out.as_mut_ptr(),
74        );
75        assert_eq!(count as usize, out.len());
76    }
77
78    #[inline]
79    pub const fn name() -> &'static CStr {
80        vk::KhrGetMemoryRequirements2Fn::name()
81    }
82
83    #[inline]
84    pub fn fp(&self) -> &vk::KhrGetMemoryRequirements2Fn {
85        &self.fp
86    }
87
88    #[inline]
89    pub fn device(&self) -> vk::Device {
90        self.handle
91    }
92}
ash/extensions/khr/get_memory_requirements2.rs

ash/extensions/khr/
get_memory_requirements2.rs
