windowscodecs: Fix stride calculation in JPEG decoder.

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: Fix stride calculation in JPEG decoder.
d2cd9a84 · Dmitry Timoshkov · Alexandre Julliard · a8c38cf0 · d2cd9a84
Commit d2cd9a84 authored Mar 06, 2018 by Dmitry Timoshkov Committed by Alexandre Julliard Mar 06, 2018
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jpegformat.c dlls/windowscodecs/jpegformat.c +1 -1

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--- 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;