From 1850819483a1a5e061da18c8bfd615988af3b316 Mon Sep 17 00:00:00 2001
From: Robin Kertels <robin.kertels@gmail.com>
Date: Thu, 25 May 2023 23:45:24 +0200
Subject: [PATCH] [d3d9] Only use direct buffer mapping for DYNAMIC buffers

Tests show that buffers with just D3DUSAGE_WRITEONLY are uploaded on Unlock.
---
 src/d3d9/d3d9_common_buffer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/d3d9/d3d9_common_buffer.cpp b/src/d3d9/d3d9_common_buffer.cpp
index 40b406b8b..efa2530fa 100644
--- a/src/d3d9/d3d9_common_buffer.cpp
+++ b/src/d3d9/d3d9_common_buffer.cpp
@@ -62,7 +62,7 @@ namespace dxvk {
     if (m_desc.Pool != D3DPOOL_DEFAULT)
       return D3D9_COMMON_BUFFER_MAP_MODE_BUFFER;
 
-    if (!(m_desc.Usage & (D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY)))
+    if (!(m_desc.Usage & D3DUSAGE_DYNAMIC))
       return D3D9_COMMON_BUFFER_MAP_MODE_BUFFER;
 
     // Tests show that DISCARD does not work for pure SWVP devices.