Add high level wrapper for currently-empty RayQuery extension

ash/src/extensions/khr/mod.rs

@@ -6,6 +6,7 @@ pub use self::draw_indirect_count::DrawIndirectCount;
 pub use self::external_memory_fd::ExternalMemoryFd;
 pub use self::pipeline_executable_properties::PipelineExecutableProperties;
 pub use self::push_descriptor::PushDescriptor;
+pub use self::ray_query::RayQuery;
 pub use self::ray_tracing_pipeline::RayTracingPipeline;
 pub use self::surface::Surface;
 pub use self::swapchain::Swapchain;
@@ -23,6 +24,7 @@ mod draw_indirect_count;
 mod external_memory_fd;
 mod pipeline_executable_properties;
 mod push_descriptor;
+mod ray_query;
 mod ray_tracing_pipeline;
 mod surface;
 mod swapchain;

ash/src/extensions/khr/ray_query.rs

@@ -0,0 +1,35 @@
+#![allow(dead_code)]
+use crate::version::{DeviceV1_0, InstanceV1_0};
+use crate::vk;
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct RayQuery {
+    handle: vk::Device,
+    ray_query_fn: vk::KhrRayQueryFn,
+}
+
+impl RayQuery {
+    pub fn new<I: InstanceV1_0, D: DeviceV1_0>(instance: &I, device: &D) -> Self {
+        let ray_query_fn = vk::KhrRayQueryFn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr()))
+        });
+        Self {
+            handle: device.handle(),
+            ray_query_fn,
+        }
+    }
+
+    pub fn name() -> &'static CStr {
+        vk::KhrRayQueryFn::name()
+    }
+
+    pub fn fp(&self) -> &vk::KhrRayQueryFn {
+        &self.ray_query_fn
+    }
+
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}