Method get_block_buf

DSView/pv/data/logicsnapshot.cpp:1398–1424

}

uint8_t *LogicSnapshot::get_block_buf(int block_index, int sig_index, bool &sample)
{
    assert(block_index < get_block_num());

    int order = get_ch_order(sig_index);
    if (order == -1) {
        sample = 0;
        return NULL;
    }

    int block_index0 = block_index;
    block_index += _loop_offset / LeafBlockSamples;

    uint64_t index = block_index / RootScale;
    uint8_t pos = block_index % RootScale;
    uint8_t *lbp = (uint8_t*)_ch_data[order][index].lbp[pos];

    if (lbp == NULL)
        sample = (_ch_data[order][index].first & 1ULL << pos) != 0;

    if (lbp != NULL && _loop_offset > 0 && block_index0 == 0)
    {
        lbp += (_loop_offset % LeafBlockSamples) / 8;
    }

    return lbp;
}

int LogicSnapshot::get_ch_order(int sig_index)
{