From 4a8ba388ff415526048a58488e53e5c82c5f0b87 Mon Sep 17 00:00:00 2001
From: WinterSnowfall <WinterSnowfall@users.noreply.github.com>
Date: Fri, 4 Oct 2024 15:34:58 +0300
Subject: [PATCH] [d3d8] Validate CheckDeviceType windowed calls similarly to
 fullscreen

---
 src/d3d8/d3d8_interface.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/d3d8/d3d8_interface.h b/src/d3d8/d3d8_interface.h
index 6ed0e384a..3bd76f6fe 100644
--- a/src/d3d8/d3d8_interface.h
+++ b/src/d3d8/d3d8_interface.h
@@ -63,12 +63,15 @@ namespace dxvk {
         D3DFORMAT   AdapterFormat,
         D3DFORMAT   BackBufferFormat,
         BOOL        bWindowed) {
+      // Ignore the bWindowed parameter when querying D3D9. D3D8 does
+      // identical validations between windowed and fullscreen modes, adhering
+      // to the stricter fullscreen adapter and back buffer format validations.
       return m_d3d9->CheckDeviceType(
           Adapter,
           (d3d9::D3DDEVTYPE)DevType,
           (d3d9::D3DFORMAT)AdapterFormat,
           (d3d9::D3DFORMAT)BackBufferFormat,
-          bWindowed
+          FALSE
       );
     }