1 files changed, 60 insertions, 0 deletions
diff --git a/third_party/rust/ash/src/extensions/khr/external_memory_fd.rs b/third_party/rust/ash/src/extensions/khr/external_memory_fd.rs
new file mode 100644
index 0000000000..902349802f
--- /dev/null
+++ b/third_party/rust/ash/src/extensions/khr/external_memory_fd.rs
@@ -0,0 +1,60 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct ExternalMemoryFd {
+    handle: vk::Device,
+    fp: vk::KhrExternalMemoryFdFn,
+}
+
+impl ExternalMemoryFd {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::KhrExternalMemoryFdFn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
+        });
+        Self { handle, fp }
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetMemoryFdKHR.html>
+    #[inline]
+    pub unsafe fn get_memory_fd(&self, create_info: &vk::MemoryGetFdInfoKHR) -> VkResult<i32> {
+        let mut fd = -1;
+        (self.fp.get_memory_fd_khr)(self.handle, create_info, &mut fd).result_with_success(fd)
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetMemoryFdPropertiesKHR.html>
+    #[inline]
+    pub unsafe fn get_memory_fd_properties(
+        &self,
+        handle_type: vk::ExternalMemoryHandleTypeFlags,
+        fd: i32,
+    ) -> VkResult<vk::MemoryFdPropertiesKHR> {
+        let mut memory_fd_properties = Default::default();
+        (self.fp.get_memory_fd_properties_khr)(
+            self.handle,
+            handle_type,
+            fd,
+            &mut memory_fd_properties,
+        )
+        .result_with_success(memory_fd_properties)
+    }
+
+    #[inline]
+    pub const fn name() -> &'static CStr {
+        vk::KhrExternalMemoryFdFn::name()
+    }
+
+    #[inline]
+    pub fn fp(&self) -> &vk::KhrExternalMemoryFdFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}