From 2022b4f6038058dff8446a9899dbad90b4f9c29f Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn@traverseresearch.nl>
Date: Tue, 10 May 2022 15:18:13 +0200
Subject: [PATCH] extensions/ext: Add VK_EXT_pipeline_properties device
 extension

---
 Changelog.md                                  |  1 +
 ash/src/extensions/ext/mod.rs                 |  2 +
 ash/src/extensions/ext/pipeline_properties.rs | 47 +++++++++++++++++++
 3 files changed, 50 insertions(+)
 create mode 100644 ash/src/extensions/ext/pipeline_properties.rs

diff --git a/Changelog.md b/Changelog.md
index dcfcaee54..ea78b8478 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Update Vulkan-Headers to 1.3.244 (#697)
+- Added `VK_EXT_pipeline_properties` device extension (#622)
 
 ### Changed
 
diff --git a/ash/src/extensions/ext/mod.rs b/ash/src/extensions/ext/mod.rs
index f30ee32b5..ca247b65f 100644
--- a/ash/src/extensions/ext/mod.rs
+++ b/ash/src/extensions/ext/mod.rs
@@ -16,6 +16,7 @@ pub use self::image_compression_control::ImageCompressionControl;
 pub use self::image_drm_format_modifier::ImageDrmFormatModifier;
 pub use self::mesh_shader::MeshShader;
 pub use self::metal_surface::MetalSurface;
+pub use self::pipeline_properties::PipelineProperties;
 pub use self::private_data::PrivateData;
 pub use self::sample_locations::SampleLocations;
 pub use self::tooling_info::ToolingInfo;
@@ -38,6 +39,7 @@ mod image_compression_control;
 mod image_drm_format_modifier;
 mod mesh_shader;
 mod metal_surface;
+mod pipeline_properties;
 mod private_data;
 mod sample_locations;
 mod tooling_info;
diff --git a/ash/src/extensions/ext/pipeline_properties.rs b/ash/src/extensions/ext/pipeline_properties.rs
new file mode 100644
index 000000000..0abaeebe4
--- /dev/null
+++ b/ash/src/extensions/ext/pipeline_properties.rs
@@ -0,0 +1,47 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_EXT_pipeline_properties.html>
+#[derive(Clone)]
+pub struct PipelineProperties {
+    handle: vk::Device,
+    fp: vk::ExtPipelinePropertiesFn,
+}
+
+impl PipelineProperties {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::ExtPipelinePropertiesFn::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/vkGetPipelinePropertiesEXT.html>
+    ///
+    /// Currently only accepts [`vk::PipelinePropertiesIdentifierEXT`].
+    #[inline]
+    pub unsafe fn get_pipeline_properties(
+        &self,
+        pipeline_info: &vk::PipelineInfoEXT,
+        pipeline_properties: *mut vk::BaseOutStructure,
+    ) -> VkResult<()> {
+        (self.fp.get_pipeline_properties_ext)(self.handle, pipeline_info, pipeline_properties)
+            .result()
+    }
+
+    pub const NAME: &'static CStr = vk::ExtPipelinePropertiesFn::NAME;
+
+    #[inline]
+    pub fn fp(&self) -> &vk::ExtPipelinePropertiesFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}