Add Image::fetch_with_lod

crates/spirv-std/src/image.rs

@@ -162,6 +162,22 @@ impl<
         }
         result.truncate_into()
     }
+
+    /// Fetch a single texel at a mipmap `lod` with a sampler set at compile time
+    ///
+    /// `lod` is also known as `level` in WGSL's `textureLoad`
+    #[crate::macros::gpu_only]
+    #[doc(alias = "OpImageFetch")]
+    pub fn fetch_with_lod<I>(
+        &self,
+        coordinate: impl ImageCoordinate<I, DIM, ARRAYED>,
+        lod: u32,
+    ) -> SampledType::SampleResult
+    where
+        I: Integer,
+    {
+        self.fetch_with(coordinate, sample_with::lod(lod))
+    }
 }
 
 impl<

tests/compiletests/ui/image/fetch_with_lod.rs

@@ -0,0 +1,13 @@
+// build-pass
+
+use spirv_std::spirv;
+use spirv_std::{Image, arch};
+
+#[spirv(fragment)]
+pub fn main(
+    #[spirv(descriptor_set = 0, binding = 0)] image: &Image!(2D, type=f32, sampled),
+    output: &mut glam::Vec4,
+) {
+    let texel = image.fetch_with_lod(glam::IVec2::new(0, 1), 0);
+    *output = texel;
+}