Vendor things

third-party/vendor/ash/src/extensions/ext/headless_surface.rs

@@ -0,0 +1,55 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::RawPtr;
+use crate::{Entry, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_EXT_headless_surface.html>
+#[derive(Clone)]
+pub struct HeadlessSurface {
+    handle: vk::Instance,
+    fp: vk::ExtHeadlessSurfaceFn,
+}
+
+impl HeadlessSurface {
+    pub fn new(entry: &Entry, instance: &Instance) -> Self {
+        let handle = instance.handle();
+        let fp = vk::ExtHeadlessSurfaceFn::load(|name| unsafe {
+            mem::transmute(entry.get_instance_proc_addr(handle, name.as_ptr()))
+        });
+        Self { handle, fp }
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCreateHeadlessSurfaceEXT.html>
+    #[inline]
+    pub unsafe fn create_headless_surface(
+        &self,
+        create_info: &vk::HeadlessSurfaceCreateInfoEXT,
+        allocation_callbacks: Option<&vk::AllocationCallbacks>,
+    ) -> VkResult<vk::SurfaceKHR> {
+        let mut surface = mem::zeroed();
+        (self.fp.create_headless_surface_ext)(
+            self.handle,
+            create_info,
+            allocation_callbacks.as_raw_ptr(),
+            &mut surface,
+        )
+        .result_with_success(surface)
+    }
+
+    #[inline]
+    pub const fn name() -> &'static CStr {
+        vk::ExtHeadlessSurfaceFn::name()
+    }
+
+    #[inline]
+    pub fn fp(&self) -> &vk::ExtHeadlessSurfaceFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn instance(&self) -> vk::Instance {
+        self.handle
+    }
+}