traps->extents.p1.x = traps->extents.p1.y = CAIRO_MAXSHORT << 16; traps->extents.p2.x = traps->extents.p2.y = CAIRO_MINSHORT << 16;
_cairo_traps_init (cairo_traps_t *traps){    traps->num_traps = 0;    traps->traps_size = 0;    traps->traps = NULL;}