static void swd_findbest(ucl_swd_t *s)
{
DWORD key;
DWORD cnt, node;
DWORD len;
/* get current head, add bp into HEAD3 */
key = HEAD3(s->b,s->bp);
node = s->succ3[s->bp] = s->head3[key];
cnt = s->llen3[key]++;
if(cnt > s->max_chain && s->max_chain > 0)cnt = s->max_chain;
s->head3[key] = s->bp;
s->b_char = s->b[s->bp];
len = s->m_len;
if(s->m_len >= s->look)
{
if (s->look == 0)s->b_char = -1;
s->m_off = 0;
s->best3[s->bp] = SWD_F + 1;
}
else
{
if(swd_search2(s) && s->look >= 3)swd_search(s,node,cnt);
if(s->m_len > len)s->m_off = (s->bp > s->m_pos ? s->bp - s->m_pos : s->b_size - (s->m_pos - s->bp));
s->best3[s->bp] = s->m_len;
}
swd_remove_node(s,s->rp);
/* add bp into HEAD2 */
key = HEAD2(s->b,s->bp);
s->head2[key] = s->bp;
}
static
void swd_findbest(ucl_swd_t * s)
{
ucl_uint key;
ucl_uint cnt, node;
ucl_uint len;
assert(s->m_len > 0);
/* get current head, add bp into HEAD3 */
key = HEAD3(s->b, s->bp);
node = s->succ3[s->bp] = s_head3(s, key);
cnt = s->llen3[key]++;
assert(s->llen3[key] <= s->n + s->f);
if (cnt > s->max_chain && s->max_chain > 0)
cnt = s->max_chain;
s->head3[key] = SWD_UINT(s->bp);
s->b_char = s->b[s->bp];
len = s->m_len;
if (s->m_len >= s->look) {
if (s->look == 0)
s->b_char = -1;
s->m_off = 0;
s->best3[s->bp] = SWD_UINT(s->f + 1);
} else {
#ifdef HEAD2
if (swd_search2(s))
#endif
if (s->look >= 3)
swd_search(s, node, cnt);
if (s->m_len > len)
s->m_off = swd_pos2off(s, s->m_pos);
s->best3[s->bp] = SWD_UINT(s->m_len);
#if defined(SWD_BEST_OFF)
if (s->use_best_off) {
int i;
for (i = 2; i < SWD_BEST_OFF; i++)
if (s->best_pos[i] > 0)
s->best_off[i] =
swd_pos2off(s,
s->best_pos[i] -
1);
else
s->best_off[i] = 0;
}
#endif
}
swd_remove_node(s, s->rp);
#ifdef HEAD2
/* add bp into HEAD2 */
key = HEAD2(s->b, s->bp);
s->head2[key] = SWD_UINT(s->bp);
#endif
}
static void
swd_findbest (lzo1x_999_swd_t * s)
{
lzo_uint key;
lzo_uint cnt, node;
lzo_uint len;
key = HEAD3 (s->b, s->bp);
node = s->succ3[s->bp] = s_head3 (s, key);
cnt = s->llen3[key]++;
if (cnt > s->max_chain && s->max_chain > 0)
cnt = s->max_chain;
s->head3[key] = SWD_UINT (s->bp);
s->b_char = s->b[s->bp];
len = s->m_len;
if (s->m_len >= s->look)
{
if (s->look == 0)
s->b_char = -1;
s->m_off = 0;
s->best3[s->bp] = SWD_UINT (s->f + 1);
}
else
{
if (swd_search2 (s))
if (s->look >= 3)
swd_search (s, node, cnt);
if (s->m_len > len)
s->m_off = swd_pos2off (s, s->m_pos);
s->best3[s->bp] = SWD_UINT (s->m_len);
if (s->use_best_off)
{
int i;
for (i = 2; i < SWD_BEST_OFF; i++)
if (s->best_pos[i] > 0)
s->best_off[i] =
swd_pos2off (s,
s->best_pos[i] -
1);
else
s->best_off[i] = 0;
}
}
swd_remove_node (s, s->rp);
key = HEAD2 (s->b, s->bp);
s->head2[key] = SWD_UINT (s->bp);
}