windowscodecs: Add a NULL check to 8bpp gray converter.

Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru> Signed-off-by: Vincent Povirk <vincent@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

windowscodecs: Add a NULL check to 8bpp gray converter.
453aa459 · Dmitry Timoshkov · Alexandre Julliard · d6c2734d · 453aa459
Commit 453aa459 authored Feb 01, 2019 by Dmitry Timoshkov Committed by Alexandre Julliard Feb 04, 2019
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converter.c dlls/windowscodecs/converter.c +3 -0

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--- a/dlls/windowscodecs/converter.c
+++ b/dlls/windowscodecs/converter.c
@@ -1186,6 +1186,9 @@ static HRESULT copypixels_to_8bppGray(struct FormatConverter *This, const WICRec
        return hr;
    }

+    if (!prc)
+        return copypixels_to_24bppBGR(This, NULL, cbStride, cbBufferSize, pbBuffer, source_format);
+
    srcstride = 3 * prc->Width;
    srcdatasize = srcstride * prc->Height;