cached_text_t* pEntry = m_aCache + iHash;
    if(pEntry->iMessageLength != iMessageLength || pEntry->iWidth > iWidth
        || (iWidth != INT_MAX && pEntry->iWidth < iWidth)
        || pEntry->eAlign != eAlign || !pEntry->bIsValid
        || memcmp(pEntry->sMessage, sMessage, iMessageLength) != 0)
    {
        // Cache entry does not match the message being drawn, so discard the
        // cache entry.
        _freeTexture(pEntry);
        _setNullTexture(pEntry);
        delete[] pEntry->pData;
        pEntry->pData = NULL;
        pEntry->bIsValid = false;

        ......