Function SFileAddFile_Write

extern/StormLib/src/SFileAddFile.cpp:569–709

}

DWORD SFileAddFile_Write(TMPQFile * hf, const void * pvData, DWORD dwSize, DWORD dwCompression)
{
    TMPQArchive * ha;
    TFileEntry * pFileEntry;
    DWORD dwErrCode = ERROR_SUCCESS;

    // Don't bother if the caller gave us zero size
    if(pvData == NULL || dwSize == 0)
        return ERROR_SUCCESS;

    // Get pointer to the MPQ archive
    pFileEntry = hf->pFileEntry;
    ha = hf->ha;

    // Allocate file buffers
    if(hf->pbFileSector == NULL)
    {
        ULONGLONG RawFilePos = hf->RawFilePos;

        // Allocate buffer for file sector
        hf->dwAddFileError = dwErrCode = AllocateSectorBuffer(hf);
        if(dwErrCode != ERROR_SUCCESS)
            return dwErrCode;

        // Allocate patch info, if the data is patch
        if(hf->pPatchInfo == NULL && IsIncrementalPatchFile(pvData, dwSize, &hf->dwPatchedFileSize))
        {
            // Set the MPQ_FILE_PATCH_FILE flag
            pFileEntry->dwFlags |= MPQ_FILE_PATCH_FILE;

            // Allocate the patch info
            hf->dwAddFileError = dwErrCode = AllocatePatchInfo(hf, false);
            if(dwErrCode != ERROR_SUCCESS)
                return dwErrCode;
        }

        // Allocate sector offsets
        if(hf->SectorOffsets == NULL)
        {
            hf->dwAddFileError = dwErrCode = AllocateSectorOffsets(hf, false);
            if(dwErrCode != ERROR_SUCCESS)
                return dwErrCode;
        }

        // Create array of sector checksums
        if(hf->SectorChksums == NULL && (pFileEntry->dwFlags & MPQ_FILE_SECTOR_CRC))
        {
            hf->dwAddFileError = dwErrCode = AllocateSectorChecksums(hf, false);
            if(dwErrCode != ERROR_SUCCESS)
                return dwErrCode;
        }

        // Pre-save the patch info, if any
        if(hf->pPatchInfo != NULL)
        {
            if(!FileStream_Write(ha->pStream, &RawFilePos, hf->pPatchInfo, hf->pPatchInfo->dwLength))
                dwErrCode = GetLastError();