From 9439bbc72e66a54de76674374faf70c629eda920 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Ignacio=20Mar=C3=ADn?= Date: Fri, 3 Mar 2017 18:26:11 +0000 Subject: Patch on behalf of TheLemonMan that addresses bug [6b3644a4858f018cd08615d3d516b07d271fe2a]. --- generic/tkImgPNG.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/generic/tkImgPNG.c b/generic/tkImgPNG.c index c6e3029..6e64afa 100644 --- a/generic/tkImgPNG.c +++ b/generic/tkImgPNG.c @@ -2245,10 +2245,10 @@ ApplyAlpha( p += offset; if (16 == pngPtr->bitDepth) { - register int channel; + register unsigned int channel; while (p < endPtr) { - channel = (unsigned char) + channel = (unsigned int) (((p[0] << 8) | p[1]) * pngPtr->alpha); *p++ = (unsigned char) (channel >> 8); -- cgit v0.12