Vendor things

third-party/vendor/ash/src/extensions/khr/display_swapchain.rs

@@ -0,0 +1,57 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::RawPtr;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct DisplaySwapchain {
+    handle: vk::Device,
+    fp: vk::KhrDisplaySwapchainFn,
+}
+
+impl DisplaySwapchain {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::KhrDisplaySwapchainFn::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/vkCreateSharedSwapchainsKHR.html>
+    #[inline]
+    pub unsafe fn create_shared_swapchains(
+        &self,
+        create_infos: &[vk::SwapchainCreateInfoKHR],
+        allocation_callbacks: Option<&vk::AllocationCallbacks>,
+    ) -> VkResult<Vec<vk::SwapchainKHR>> {
+        let mut swapchains = Vec::with_capacity(create_infos.len());
+        (self.fp.create_shared_swapchains_khr)(
+            self.handle,
+            create_infos.len() as u32,
+            create_infos.as_ptr(),
+            allocation_callbacks.as_raw_ptr(),
+            swapchains.as_mut_ptr(),
+        )
+        .result()?;
+        swapchains.set_len(create_infos.len());
+        Ok(swapchains)
+    }
+
+    #[inline]
+    pub const fn name() -> &'static CStr {
+        vk::KhrDisplaySwapchainFn::name()
+    }
+
+    #[inline]
+    pub fn fp(&self) -> &vk::KhrDisplaySwapchainFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}