diff options
| -rw-r--r-- | generic/tkImgPNG.c | 4 |
1 files 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); |