Function LoadFileSpanFrames

src/External/CascLib/src/CascReadFile.cpp:476–519

Loads all file spans to memory

// Loads all file spans to memory
static DWORD LoadFileSpanFrames(TCascFile * hf)
{
    PCASC_CKEY_ENTRY pCKeyEntry = hf->pCKeyEntry;
    PCASC_FILE_SPAN pFileSpan = hf->pFileSpan;
    DWORD dwErrCode = ERROR_SUCCESS;

    // If the ContentSize/EncodedSize is still unknown, we need to get it from the file frames
    if(hf->ContentSize == CASC_INVALID_SIZE64 || hf->EncodedSize == CASC_INVALID_SIZE64)
    {
        // Set initially to zero
        hf->ContentSize = 0;
        hf->EncodedSize = 0;

        // Load file frames for all spans
        for(DWORD i = 0; i < hf->SpanCount; i++, pCKeyEntry++, pFileSpan++)
        {
            // Init the range of the file span
            pFileSpan->StartOffset = hf->ContentSize;
            pFileSpan->EndOffset = hf->ContentSize;

            // Load the frames of the file span
            dwErrCode = LoadSpanFrames(hf, pFileSpan, pCKeyEntry);
            if(dwErrCode != ERROR_SUCCESS)
                break;

            hf->ContentSize += pCKeyEntry->ContentSize;
            hf->EncodedSize += pCKeyEntry->EncodedSize;
            pFileSpan->EndOffset = hf->ContentSize;
        }
    }
    else
    {
        // Load file frames for all spans
        for(DWORD i = 0; i < hf->SpanCount; i++, pCKeyEntry++, pFileSpan++)
        {
            // Load the frames of the file span
            dwErrCode = LoadSpanFrames(hf, pFileSpan, pCKeyEntry);
            if(dwErrCode != ERROR_SUCCESS)
                break;
        }
    }

    return dwErrCode;
}

static DWORD EnsureFileSpanFramesLoaded(TCascFile * hf)
{