void CLZDecompBase::init_position_slots(uint dict_size_log2)
{
LZHAM_ASSERT(dict_size_log2 >= LZHAM_MIN_DICT_SIZE_LOG2);
LZHAM_ASSERT(dict_size_log2 <= LZHAM_MAX_DICT_SIZE_LOG2_X64);
LZHAM_ASSERT((sizeof(g_table_update_settings) / sizeof(g_table_update_settings[0])) == LZHAM_FASTEST_TABLE_UPDATE_RATE);
//for (dict_size_log2 = LZHAM_MIN_DICT_SIZE_LOG2; dict_size_log2 <= LZHAM_MAX_DICT_SIZE_LOG2_X64; dict_size_log2++) {
m_dict_size_log2 = dict_size_log2;
m_dict_size = 1U << dict_size_log2;
m_num_lzx_slots = g_num_lzx_position_slots[dict_size_log2 - LZHAM_MIN_DICT_SIZE_LOG2];
#if 0
int i, j;
for (i = 0, j = 0; i < cLZXMaxPositionSlots; i += 2)
{
m_lzx_position_extra_bits[i] = (uint8)j;
m_lzx_position_extra_bits[i + 1] = (uint8)j;
if ((i != 0) && (j < 25))
j++;
}
for (i = 0, j = 0; i < cLZXMaxPositionSlots; i++)
{
m_lzx_position_base[i] = j;
m_lzx_position_extra_mask[i] = (1 << m_lzx_position_extra_bits[i]) - 1;
j += (1 << m_lzx_position_extra_bits[i]);
}
for (uint i = 0; i < cLZXMaxPositionSlots; i++)
{
printf("0x%X, ", m_lzx_position_base[i]);
if ((i & 15) == 15) printf("\n");
}
#endif
#if 0
m_num_lzx_slots = 0;
const uint largest_dist = m_dict_size - 1;
for (i = 0; i < cLZXMaxPositionSlots; i++)
{
if ( (largest_dist >= m_lzx_position_base[i]) &&
(largest_dist < (m_lzx_position_base[i] + (1 << m_lzx_position_extra_bits[i])) ) )
{
m_num_lzx_slots = i + 1;
break;
}
}
LZHAM_VERIFY(m_num_lzx_slots);
#endif
//printf("%u, ", m_num_lzx_slots); }
}
task_pool::task_pool(uint num_threads) :
m_num_threads(0),
m_tasks_available(0, 32767),
m_num_outstanding_tasks(0),
m_exit_flag(false)
{
utils::zero_object(m_threads);
bool status = init(num_threads);
LZHAM_VERIFY(status);
}
void CLZDecompBase::init_position_slots(uint dict_size_log2)
{
m_dict_size_log2 = dict_size_log2;
m_dict_size = 1U << dict_size_log2;
int i, j;
for (i = 0, j = 0; i < cLZXMaxPositionSlots; i += 2)
{
m_lzx_position_extra_bits[i] = (uint8)j;
m_lzx_position_extra_bits[i + 1] = (uint8)j;
if ((i != 0) && (j < 25))
j++;
}
for (i = 0, j = 0; i < cLZXMaxPositionSlots; i++)
{
m_lzx_position_base[i] = j;
m_lzx_position_extra_mask[i] = (1 << m_lzx_position_extra_bits[i]) - 1;
j += (1 << m_lzx_position_extra_bits[i]);
}
m_num_lzx_slots = 0;
const uint largest_dist = m_dict_size - 1;
for (i = 0; i < cLZXMaxPositionSlots; i++)
{
if ( (largest_dist >= m_lzx_position_base[i]) &&
(largest_dist < (m_lzx_position_base[i] + (1 << m_lzx_position_extra_bits[i])) ) )
{
m_num_lzx_slots = i + 1;
break;
}
}
LZHAM_VERIFY(m_num_lzx_slots);
}
