extensions/khr: Add VK_KHR_external_fence_win32 (#582)

Changelog.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added `VK_KHR_external_fence_win32` device extension (#582)
 - Added `VK_KHR_external_semaphore_win32` device extension (#581)
 - Added `VK_KHR_external_memory_win32` device extension (#579)
 - Added `VK_EXT_extended_dynamic_state2` device extension (#572)

ash/src/extensions/khr/external_fence_win32.rs

@@ -0,0 +1,56 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+use std::ptr;
+
+/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_KHR_external_fence_win32.html>
+#[derive(Clone)]
+pub struct ExternalFenceWin32 {
+    handle: vk::Device,
+    fp: vk::KhrExternalFenceWin32Fn,
+}
+
+impl ExternalFenceWin32 {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::KhrExternalFenceWin32Fn::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/vkImportFenceWin32HandleKHR.html>
+    pub unsafe fn import_fence_win32_handle(
+        &self,
+        import_info: &vk::ImportFenceWin32HandleInfoKHR,
+    ) -> VkResult<()> {
+        self.fp
+            .import_fence_win32_handle_khr(self.handle, import_info)
+            .result()
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetFenceWin32HandleKHR.html>
+    pub unsafe fn get_fence_win32_handle(
+        &self,
+        get_info: &vk::FenceGetWin32HandleInfoKHR,
+    ) -> VkResult<vk::HANDLE> {
+        let mut handle = ptr::null_mut();
+        self.fp
+            .get_fence_win32_handle_khr(self.handle, get_info, &mut handle)
+            .result_with_success(handle)
+    }
+
+    pub fn name() -> &'static CStr {
+        vk::KhrExternalFenceWin32Fn::name()
+    }
+
+    pub fn fp(&self) -> &vk::KhrExternalFenceWin32Fn {
+        &self.fp
+    }
+
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}

ash/src/extensions/khr/mod.rs

@@ -9,6 +9,7 @@ pub use self::display_swapchain::DisplaySwapchain;
 pub use self::draw_indirect_count::DrawIndirectCount;
 pub use self::dynamic_rendering::DynamicRendering;
 pub use self::external_fence_fd::ExternalFenceFd;
+pub use self::external_fence_win32::ExternalFenceWin32;
 pub use self::external_memory_fd::ExternalMemoryFd;
 pub use self::external_memory_win32::ExternalMemoryWin32;
 pub use self::external_semaphore_fd::ExternalSemaphoreFd;
@@ -43,6 +44,7 @@ mod display_swapchain;
 mod draw_indirect_count;
 mod dynamic_rendering;
 mod external_fence_fd;
+mod external_fence_win32;
 mod external_memory_fd;
 mod external_memory_win32;
 mod external_semaphore_fd;