Dmitry Timoshkov : windowscodecs: Fix stride calculation in JPEG decoder.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d2cd9a842ec901c16b6e067bd103bc500887f9ba
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=d2cd9a842ec901c16b6e067bd...

Author: Dmitry Timoshkov 
Date:   Tue Mar  6 09:18:29 2018 +0800

windowscodecs: Fix stride calculation in JPEG decoder.

Signed-off-by: Dmitry Timoshkov 
Signed-off-by: Vincent Povirk 
Signed-off-by: Alexandre Julliard

---

dlls/windowscodecs/jpegformat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/windowscodecs/jpegformat.c b/dlls/windowscodecs/jpegformat.c
index 08f1ee7..27cd880 100644
--- a/dlls/windowscodecs/jpegformat.c
+++ b/dlls/windowscodecs/jpegformat.c
@@ -624,7 +624,7 @@ static HRESULT WINAPI JpegDecoder_Frame_CopyPixels(IWICBitmapFrameDecode *iface,
     else if (This->cinfo.out_color_space == JCS_CMYK) bpp = 32;
     else bpp = 24;

-    stride = bpp * This->cinfo.output_width;
+    stride = (bpp * This->cinfo.output_width + 7) / 8;
     data_size = stride * This->cinfo.output_height;

max_row_needed = prc->Y + prc->Height;