uvmap: Segmentation fault

[rrrapha]

I get the following segfault when running make check on OpenBSD:

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00000ec23bcfd03b in f0r_update2 (instance=0xec2553e9c90, time=0, inframe1=0xec26eea1000, inframe2=0xec295fa1000, inframe3=0x0, outframe=0xec2b8af8000)
    at /tmp/frei0r/src/mixer2/uvmap/uvmap.c:115
115                              *dst++ = src[px+w*py];

(gdb) info locals
tmpc = 0xec26eea1280 ""
inst = 0xec2553e9c90
w = 640
h = 480
x = 160
y = 0
dst = 0xec2b8af8280
uvmap = 0xec26eea1280
src = 0xec295fa1000
fx = 0
fy = 1
px = 0
py = 480