Add DescriptorWrite for InputAttachments

vulkan-rs/src/descriptorset.rs

@@ -122,6 +122,27 @@ impl DescriptorWrite {
         }
     }
 
+    pub fn input_attachments(binding: u32, images: &[&Arc<Image>]) -> Self {
+        DescriptorWrite {
+            binding,
+            descriptor_type: VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT,
+            inner: InnerWrite::Images(
+                images
+                    .iter()
+                    .map(|image| VkDescriptorImageInfo {
+                        sampler: VkSampler::NULL_HANDLE,
+                        imageView: image.vk_handle(),
+                        imageLayout: image.image_layout(),
+                    })
+                    .collect(),
+            ),
+            handles: images
+                .iter()
+                .map(|i| (*i).clone() as Arc<dyn Any + Send + Sync>)
+                .collect(),
+        }
+    }
+
     pub fn acceleration_structures(
         binding: u32,
         acceleration_structures: &[&Arc<AccelerationStructure>],