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| author | dgp <dgp@users.sourceforge.net> | 2017-03-06 16:46:23 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2017-03-06 16:46:23 (GMT) |
| commit | f57a1c2f77718c59094fb458218ac9c0a10a6b7e (patch) | |
| tree | fca62059854b4d932fd151bb44ef26b6144fc513 /generic | |
| parent | 468aa8015e8bc0596c2d5b26456da117b21b4b96 (diff) | |
| download | tk-f57a1c2f77718c59094fb458218ac9c0a10a6b7e.zip tk-f57a1c2f77718c59094fb458218ac9c0a10a6b7e.tar.gz tk-f57a1c2f77718c59094fb458218ac9c0a10a6b7e.tar.bz2 | |
[6b3644a485] Fix -alpha applied to 16-bit color PNG. Thanks TheLemonMan.
Diffstat (limited to 'generic')
| -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); |