ddraw: Only respect DDLOCK_NOOVERWRITE and DDLOCK_DISCARDCONTENTS on version 7 vertex buffers.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ddraw: Only respect DDLOCK_NOOVERWRITE and DDLOCK_DISCARDCONTENTS on version 7 vertex buffers.
30370971 · Henri Verbeet · Alexandre Julliard · 63ed42ac · 30370971
Commit 30370971 authored Jan 03, 2018 by Henri Verbeet Committed by Alexandre Julliard Jan 03, 2018
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vertexbuffer.c dlls/ddraw/vertexbuffer.c +3 -0

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--- 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
     */