From 0652aee6959e2cec22da525bc0d6a0a5aa894cac Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn@traverseresearch.nl>
Date: Tue, 15 Aug 2023 21:43:01 +0200
Subject: [PATCH] extensions/ext: Add VK_EXT_swapchain_maintenance1 (#786)

---
 Changelog.md                                  |  1 +
 ash/src/extensions/ext/mod.rs                 |  2 +
 .../extensions/ext/swapchain_maintenance1.rs  | 43 +++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 ash/src/extensions/ext/swapchain_maintenance1.rs

diff --git a/Changelog.md b/Changelog.md
index efb0e54..55059a9 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `VK_KHR_cooperative_matrix` instance extension (#782)
 - Added `VK_EXT_vertex_input_dynamic_state` device extension (#784)
 - Added `VK_KHR_sampler_ycbcr_conversion` device extension (#785)
+- Added `VK_EXT_swapchain_maintenance1` device extension (#786)
 
 ### Changed
 
diff --git a/ash/src/extensions/ext/mod.rs b/ash/src/extensions/ext/mod.rs
index 17b9789..680a997 100644
--- a/ash/src/extensions/ext/mod.rs
+++ b/ash/src/extensions/ext/mod.rs
@@ -21,6 +21,7 @@ pub use self::pipeline_properties::PipelineProperties;
 pub use self::private_data::PrivateData;
 pub use self::sample_locations::SampleLocations;
 pub use self::shader_object::ShaderObject;
+pub use self::swapchain_maintenance1::SwapchainMaintenance1;
 pub use self::tooling_info::ToolingInfo;
 pub use self::vertex_input_dynamic_state::VertexInputDynamicState;
 
@@ -47,5 +48,6 @@ mod pipeline_properties;
 mod private_data;
 mod sample_locations;
 mod shader_object;
+mod swapchain_maintenance1;
 mod tooling_info;
 mod vertex_input_dynamic_state;
diff --git a/ash/src/extensions/ext/swapchain_maintenance1.rs b/ash/src/extensions/ext/swapchain_maintenance1.rs
new file mode 100644
index 0000000..cf61ecb
--- /dev/null
+++ b/ash/src/extensions/ext/swapchain_maintenance1.rs
@@ -0,0 +1,43 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+/// <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_swapchain_maintenance1.html>
+#[derive(Clone)]
+pub struct SwapchainMaintenance1 {
+    handle: vk::Device,
+    fp: vk::ExtSwapchainMaintenance1Fn,
+}
+
+impl SwapchainMaintenance1 {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::ExtSwapchainMaintenance1Fn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
+        });
+        Self { handle, fp }
+    }
+
+    /// <https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/vkReleaseSwapchainImagesEXT.html>
+    #[inline]
+    pub unsafe fn release_swapchain_images(
+        &self,
+        release_info: &vk::ReleaseSwapchainImagesInfoEXT<'_>,
+    ) -> VkResult<()> {
+        (self.fp.release_swapchain_images_ext)(self.handle, release_info).result()
+    }
+
+    pub const NAME: &'static CStr = vk::ExtSwapchainMaintenance1Fn::NAME;
+
+    #[inline]
+    pub fn fp(&self) -> &vk::ExtSwapchainMaintenance1Fn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}