From ef768ff9d742ae6a0f4e83ddc8031264e7d460c4 Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn@traverseresearch.nl>
Date: Sat, 13 Jul 2024 22:35:16 +0200
Subject: [PATCH] sampler: Add missing `gpu_resource_id()` getter

According to the upstream docs and the Metal Shader Converter
implementation the `SamplerState` type has a way to get access to its
`MTLResourceID` on the GPU:
https://developer.apple.com/documentation/metal/mtlsamplerstate/3974101-gpuresourceid
---
 src/sampler.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/sampler.rs b/src/sampler.rs
index e9f6416..c93f652 100644
--- a/src/sampler.rs
+++ b/src/sampler.rs
@@ -5,7 +5,7 @@
 // http://opensource.org/licenses/MIT>, at your option. This file may not be
 // copied, modified, or distributed except according to those terms.
 
-use super::{depthstencil::MTLCompareFunction, DeviceRef, NSUInteger};
+use super::{depthstencil::MTLCompareFunction, DeviceRef, MTLResourceID, NSUInteger};
 
 /// See <https://developer.apple.com/documentation/metal/mtlsamplerminmagfilter>
 #[repr(u64)]
@@ -158,4 +158,8 @@ impl SamplerStateRef {
             crate::nsstring_as_str(label)
         }
     }
+
+    pub fn gpu_resource_id(&self) -> MTLResourceID {
+        unsafe { msg_send![self, gpuResourceID] }
+    }
 }