bt_rle
lastBlock + (((U32)bt_rle)<<1) + (U32)(blockSize << 3) :
lastBlock + (((U32)bt_rle)<<1) + (U32)(blockSize << 3) :
U32 const cBlockHeader = lastBlock + (((U32)bt_rle)<<1) + (U32)(srcSize << 3);
case bt_rle :
case bt_rle :
if (bpPtr->blockType == bt_rle) return 1;