[PATCH 2/2] d3d11: Report D3D11_FORMAT_SUPPORT_IA_INDEX_BUFFER.

[Zebediah Figura]

This fixes a black screen in The Unfinished Swan.

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
---
 dlls/d3d11/device.c      | 4 ++++
 dlls/d3d11/tests/d3d11.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/dlls/d3d11/device.c b/dlls/d3d11/device.c
index 098dbd449b7..c027c331bdc 100644
--- a/dlls/d3d11/device.c
+++ b/dlls/d3d11/device.c
@@ -3833,6 +3833,10 @@ static HRESULT STDMETHODCALLTYPE d3d11_device_CheckFormatSupport(ID3D11Device2 *
                 | D3D11_FORMAT_SUPPORT_MULTISAMPLE_LOAD;
     }
 
+    if (format == DXGI_FORMAT_R16_UINT
+            || (format == DXGI_FORMAT_R32_UINT && feature_level >= D3D_FEATURE_LEVEL_9_2))
+        *format_support |= D3D11_FORMAT_SUPPORT_IA_INDEX_BUFFER;
+
     return S_OK;
 }
 
diff --git a/dlls/d3d11/tests/d3d11.c b/dlls/d3d11/tests/d3d11.c
index a9373b6c624..484f09fad9e 100644
--- a/dlls/d3d11/tests/d3d11.c
+++ b/dlls/d3d11/tests/d3d11.c
@@ -20699,7 +20699,7 @@ static void check_format_support(const unsigned int *format_support, D3D_FEATURE
 
         if (formats[i].fl_required <= feature_level)
         {
-            todo_wine_if (feature_flag != D3D11_FORMAT_SUPPORT_IA_VERTEX_BUFFER)
+            todo_wine_if (feature_flag == D3D11_FORMAT_SUPPORT_DISPLAY)
                 ok(supported, "Format %#x - %s not supported, feature_level %#x, format support %#x.\n",
                         format, feature_name, feature_level, format_support[format]);
             continue;
-- 
2.34.1