[PATCH 2/5] ddraw: Only respect DDLOCK_NOOVERWRITE and DDLOCK_DISCARDCONTENTS on version 7 vertex buffers.

[Henri Verbeet]

Signed-off-by: Henri Verbeet 
---
 dlls/ddraw/vertexbuffer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/ddraw/vertexbuffer.c b/dlls/ddraw/vertexbuffer.c
index 07f1257cf9c..cc676f39859 100644
--- a/dlls/ddraw/vertexbuffer.c
+++ b/dlls/ddraw/vertexbuffer.c
@@ -164,6 +164,9 @@ static HRESULT WINAPI d3d_vertex_buffer7_Lock(IDirect3DVertexBuffer7 *iface,

TRACE("iface %p, flags %#x, data %p, data_size %p.\n", iface, flags, data, data_size);

+    if (buffer->version != 7)
+        flags &= ~(DDLOCK_NOOVERWRITE | DDLOCK_DISCARDCONTENTS);
+
     /* Writeonly: Pointless. Event: Unsupported by native according to the sdk
      * nosyslock: Not applicable
      */