Function LoadSqpBlockTable

3rdParty/StormLib/src/SBaseSubTypes.cpp:237–277

Loads the SQP Block table and converts it to a MPQ block table

// Loads the SQP Block table and converts it to a MPQ block table
TMPQBlock * LoadSqpBlockTable(TMPQArchive * ha)
{
    TMPQHeader * pHeader = ha->pHeader;
    TSQPBlock * pSqpBlockTable;
    TSQPBlock * pSqpBlockEnd;
    TSQPBlock * pSqpBlock;
    TMPQBlock * pMpqBlock;
    DWORD dwFlags;
    int nError = ERROR_SUCCESS;

    // Load the hash table
    pSqpBlockTable = (TSQPBlock *)LoadSqpTable(ha, pHeader->dwBlockTablePos, pHeader->dwBlockTableSize * sizeof(TSQPBlock), MPQ_KEY_BLOCK_TABLE);
    if(pSqpBlockTable != NULL)
    {
        // Parse the entire hash table and convert it to MPQ hash table
        pSqpBlockEnd = pSqpBlockTable + pHeader->dwBlockTableSize;
        pMpqBlock = (TMPQBlock *)pSqpBlockTable;
        for(pSqpBlock = pSqpBlockTable; pSqpBlock < pSqpBlockEnd; pSqpBlock++, pMpqBlock++)
        {
            // Check for valid flags
            if(pSqpBlock->dwFlags & ~MPQ_FILE_VALID_FLAGS)
                nError = ERROR_FILE_CORRUPT;

            // Convert SQP block table entry to MPQ block table entry
            dwFlags = pSqpBlock->dwFlags;
            pMpqBlock->dwCSize = pSqpBlock->dwCSize;
            pMpqBlock->dwFSize = pSqpBlock->dwFSize;
            pMpqBlock->dwFlags = dwFlags;
        }

        // If an error occured, we need to free the hash table
        if(nError != ERROR_SUCCESS)
        {
            STORM_FREE(pSqpBlockTable);
            pSqpBlockTable = NULL;
        }
    }

    // Return the converted hash table (or NULL on failure)
    return (TMPQBlock *)pSqpBlockTable;
}

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