python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2025-06-30 01:43:17 +03:00
Code Issues Packages Projects Releases Wiki Activity

Corrected undefined behaviour

Browse Source
This commit is contained in:
Andrew Murray 2018-04-21 13:42:39 +10:00
parent 1b9a41f2de
commit eebe3ea923
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/libImaging/Effects.c
View File

@ -79,6 +79,7 @@ ImagingEffectNoise(int xsize, int ysize, float sigma)
Imaging imOut; Imaging imOut;
int x, y; int x, y;
int nextok; int nextok;
int d;
double this, next; double this, next;
imOut = ImagingNewDirty("L", xsize, ysize); imOut = ImagingNewDirty("L", xsize, ysize);
@ -106,7 +107,8 @@ ImagingEffectNoise(int xsize, int ysize, float sigma)
this = factor * v1; this = factor * v1;
next = factor * v2; next = factor * v2;
} }
out[x] = (unsigned char) (128 + sigma * this); d = 128 + sigma * this;
out[x] = d<0 ? 0 : (d>UCHAR_MAX ? UCHAR_MAX : d);
} }
} }