diff options
Diffstat (limited to 'src/libdraw/md-alloc.c')
| -rw-r--r-- | src/libdraw/md-alloc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/libdraw/md-alloc.c b/src/libdraw/md-alloc.c index 801c3930..b4204f4e 100644 --- a/src/libdraw/md-alloc.c +++ b/src/libdraw/md-alloc.c @@ -86,7 +86,13 @@ _allocmemimage(Rectangle r, u32int chan) return nil; md->ref = 1; - md->base = poolalloc(imagmem, (2+nw)*sizeof(u32int)); + /* + * The first two words are the md and the callerpc. + * Then nw words of data. + * The final word lets the drawing routines be a little + * sloppy about reading past the end of the block. + */ + md->base = poolalloc(imagmem, (2+nw+1)*sizeof(u32int)); if(md->base == nil){ free(md); return nil; |