From 269200999f2c9a22b2e4e4cb789f99fcfff3ee5a Mon Sep 17 00:00:00 2001
From: Chris Spencer <spencercw@gmail.com>
Date: Mon, 14 Aug 2023 14:39:19 +0100
Subject: [PATCH] extensions/khr: Add VK_KHR_sampler_ycbcr_conversion

---
 Changelog.md                                  |  1 +
 ash/src/extensions/khr/mod.rs                 |  2 +
 .../khr/sampler_ycbcr_conversion.rs           | 66 +++++++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 ash/src/extensions/khr/sampler_ycbcr_conversion.rs

diff --git a/Changelog.md b/Changelog.md
index d8ac0961a..72a651315 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `VK_ANDROID_external_memory_android_hardware_buffer` device extension (#769)
 - Added `VK_AMD_buffer_marker` device extension (#772)
 - Added `VK_AMD_shader_info` device extension (#773)
+- Added `VK_KHR_sampler_ycbcr_conversion` device extension (#785)
 
 ### Changed
 
diff --git a/ash/src/extensions/khr/mod.rs b/ash/src/extensions/khr/mod.rs
index ff84d0dbf..66ef9667a 100644
--- a/ash/src/extensions/khr/mod.rs
+++ b/ash/src/extensions/khr/mod.rs
@@ -28,6 +28,7 @@ pub use self::present_wait::PresentWait;
 pub use self::push_descriptor::PushDescriptor;
 pub use self::ray_tracing_maintenance1::RayTracingMaintenance1;
 pub use self::ray_tracing_pipeline::RayTracingPipeline;
+pub use self::sampler_ycbcr_conversion::SamplerYcbcrConversion;
 pub use self::surface::Surface;
 pub use self::swapchain::Swapchain;
 pub use self::synchronization2::Synchronization2;
@@ -67,6 +68,7 @@ mod present_wait;
 mod push_descriptor;
 mod ray_tracing_maintenance1;
 mod ray_tracing_pipeline;
+mod sampler_ycbcr_conversion;
 mod surface;
 mod swapchain;
 mod synchronization2;
diff --git a/ash/src/extensions/khr/sampler_ycbcr_conversion.rs b/ash/src/extensions/khr/sampler_ycbcr_conversion.rs
new file mode 100644
index 000000000..03b97067c
--- /dev/null
+++ b/ash/src/extensions/khr/sampler_ycbcr_conversion.rs
@@ -0,0 +1,66 @@
+use crate::prelude::*;
+use crate::vk;
+use crate::RawPtr;
+use crate::{Device, Instance};
+use std::ffi::CStr;
+use std::mem;
+
+/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_KHR_sampler_ycbcr_conversion.html>
+#[derive(Clone)]
+pub struct SamplerYcbcrConversion {
+    handle: vk::Device,
+    fp: vk::KhrSamplerYcbcrConversionFn,
+}
+
+impl SamplerYcbcrConversion {
+    pub fn new(instance: &Instance, device: &Device) -> Self {
+        let handle = device.handle();
+        let fp = vk::KhrSamplerYcbcrConversionFn::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/vkCreateSamplerYcbcrConversion.html>
+    #[inline]
+    pub unsafe fn create_sampler_ycbcr_conversion(
+        &self,
+        create_info: &vk::SamplerYcbcrConversionCreateInfo,
+        allocation_callbacks: Option<&vk::AllocationCallbacks>,
+    ) -> VkResult<vk::SamplerYcbcrConversion> {
+        let mut ycbcr_conversion = mem::zeroed();
+        (self.fp.create_sampler_ycbcr_conversion_khr)(
+            self.handle,
+            create_info,
+            allocation_callbacks.as_raw_ptr(),
+            &mut ycbcr_conversion,
+        )
+        .result_with_success(ycbcr_conversion)
+    }
+
+    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkDestroySamplerYcbcrConversion.html>
+    #[inline]
+    pub unsafe fn destroy_sampler_ycbcr_conversion(
+        &self,
+        ycbcr_conversion: vk::SamplerYcbcrConversion,
+        allocation_callbacks: Option<&vk::AllocationCallbacks>,
+    ) {
+        (self.fp.destroy_sampler_ycbcr_conversion_khr)(
+            self.handle,
+            ycbcr_conversion,
+            allocation_callbacks.as_raw_ptr(),
+        )
+    }
+
+    pub const NAME: &'static CStr = vk::KhrSamplerYcbcrConversionFn::NAME;
+
+    #[inline]
+    pub fn fp(&self) -> &vk::KhrSamplerYcbcrConversionFn {
+        &self.fp
+    }
+
+    #[inline]
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}