From 645eca551004f9eea8e2276e9110f3a66a1ddc69 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Sat, 18 Jul 2026 08:26:37 +0400
Subject: feat(vulkan): select canonical depth attachment formats

---
 adapters/fparkan-render-vulkan/src/ffi/tests.rs | 39 +++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

(limited to 'adapters/fparkan-render-vulkan/src/ffi')

diff --git a/adapters/fparkan-render-vulkan/src/ffi/tests.rs b/adapters/fparkan-render-vulkan/src/ffi/tests.rs
index 6cf070e..791fff8 100644
--- a/adapters/fparkan-render-vulkan/src/ffi/tests.rs
+++ b/adapters/fparkan-render-vulkan/src/ffi/tests.rs
@@ -320,6 +320,45 @@ fn capability_gate_respects_request_specific_depth_profiles() {
     assert!(report.rejected_devices.is_empty());
 }
 
+#[test]
+fn depth_attachment_selection_is_canonical_and_request_scoped() {
+    let supported = [
+        vk::Format::D32_SFLOAT_S8_UINT.as_raw(),
+        vk::Format::D24_UNORM_S8_UINT.as_raw(),
+        vk::Format::D32_SFLOAT.as_raw(),
+    ];
+    assert_eq!(
+        select_depth_stencil_attachment_format(
+            &supported,
+            DepthStencilSupport {
+                depth_bits: 24,
+                stencil_bits: 8,
+            },
+        ),
+        Some(vk::Format::D24_UNORM_S8_UINT.as_raw())
+    );
+    assert_eq!(
+        select_depth_stencil_attachment_format(
+            &supported,
+            DepthStencilSupport {
+                depth_bits: 32,
+                stencil_bits: 0,
+            },
+        ),
+        Some(vk::Format::D32_SFLOAT.as_raw())
+    );
+    assert_eq!(
+        select_depth_stencil_attachment_format(
+            &supported,
+            DepthStencilSupport {
+                depth_bits: 0,
+                stencil_bits: 0,
+            },
+        ),
+        None
+    );
+}
+
 #[test]
 fn capability_report_preserves_informational_sampled_formats_and_limits() {
     let report = select_physical_device(&[device(
-- 
cgit v1.2.3