From 126f9690b4f306e9717cb87d60e37f05da6410ec Mon Sep 17 00:00:00 2001
From: Xiaopeng Li <lixiaopeng.jetspark@bytedance.com>
Date: Wed, 10 Jul 2024 22:20:23 +0800
Subject: [PATCH] Expose adapter driver version for DX12 backend (#5927)

---
 wgpu-hal/src/dx12/adapter.rs | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/wgpu-hal/src/dx12/adapter.rs b/wgpu-hal/src/dx12/adapter.rs
index 6c8ed1ccad..c05d9a8b3f 100644
--- a/wgpu-hal/src/dx12/adapter.rs
+++ b/wgpu-hal/src/dx12/adapter.rs
@@ -8,7 +8,8 @@ use winapi::{
     shared::{
         dxgi, dxgi1_2, dxgiformat::DXGI_FORMAT_B8G8R8A8_UNORM, minwindef::DWORD, windef, winerror,
     },
-    um::{d3d12 as d3d12_ty, d3d12sdklayers, winuser},
+    um::{d3d12 as d3d12_ty, d3d12sdklayers, winnt, winuser},
+    Interface,
 };
 
 impl Drop for super::Adapter {
@@ -130,7 +131,24 @@ impl super::Adapter {
             } else {
                 wgt::DeviceType::DiscreteGpu
             },
-            driver: String::new(),
+            driver: {
+                let mut i: winnt::LARGE_INTEGER = unsafe { mem::zeroed() };
+                if 0 == unsafe {
+                    adapter.CheckInterfaceSupport(&dxgi::IDXGIDevice::uuidof(), &mut i)
+                } {
+                    let quad_part = unsafe { *i.QuadPart() };
+                    const MASK: i64 = 0xFFFF;
+                    format!(
+                        "{}.{}.{}.{}",
+                        quad_part >> 48,
+                        (quad_part >> 32) & MASK,
+                        (quad_part >> 16) & MASK,
+                        quad_part & MASK
+                    )
+                } else {
+                    String::new()
+                }
+            },
             driver_info: String::new(),
         };