gdi32: Avoid exceeding the actual bitmap height.

The bottom-up case is handled earlier on. For the top-down case, 'lines' is left untouched. Signed-off-by: Haoyang Chen <chenhaoyang@uniontech.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

gdi32: Avoid exceeding the actual bitmap height.
abd0cddc · Haoyang Chen · Alexandre Julliard · 176ca7b8 · abd0cddc
Commit abd0cddc authored Nov 12, 2020 by Haoyang Chen Committed by Alexandre Julliard Nov 12, 2020
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dib.c dlls/gdi32/dib.c +1 -1

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--- a/dlls/gdi32/dib.c
+++ b/dlls/gdi32/dib.c
@@ -824,7 +824,7 @@ INT CDECL nulldrv_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD cx
            }
            else if (src.y >= lines) return lines;
        }
-        src_info->bmiHeader.biHeight = top_down ? -lines : lines;
+        src_info->bmiHeader.biHeight = top_down ? -min( lines, height ) : lines;
        src_info->bmiHeader.biSizeImage = get_dib_image_size( src_info );
    }