Function LoadCascStorage

src/External/CascLib/src/CascOpenStorage.cpp:1092–1264

}

static DWORD LoadCascStorage(TCascStorage * hs, PCASC_OPEN_STORAGE_ARGS pArgs, LPCTSTR szMainFile, CBLD_TYPE BuildFileType, DWORD dwFeatures)
{
    LPCTSTR szCdnHostUrl = NULL;
    LPCTSTR szCodeName = NULL;
    LPCTSTR szRegion = NULL;
    LPCTSTR szBuildKey = NULL;
    DWORD dwLocaleMask = 0;
    DWORD dwErrCode = ERROR_SUCCESS;

    // Pass the argument array to the storage
    hs->pArgs = pArgs;

    // Extract optional arguments
    ExtractVersionedArgument(pArgs, FIELD_OFFSET(CASC_OPEN_STORAGE_ARGS, dwLocaleMask), &dwLocaleMask);

    // Extract the CDN host URL
    if(ExtractVersionedArgument(pArgs, FIELD_OFFSET(CASC_OPEN_STORAGE_ARGS, szCdnHostUrl), &szCdnHostUrl) && szCdnHostUrl != NULL)
        hs->szCdnHostUrl = CascNewStr(szCdnHostUrl);

    // Extract the product code name
    if(ExtractVersionedArgument(pArgs, FIELD_OFFSET(CASC_OPEN_STORAGE_ARGS, szCodeName), &szCodeName) && szCodeName != NULL)
        hs->szCodeName = CascNewStr(szCodeName);

    // Extract the region (optional)
    if(ExtractVersionedArgument(pArgs, FIELD_OFFSET(CASC_OPEN_STORAGE_ARGS, szRegion), &szRegion) && szRegion != NULL)
        hs->szRegion = CascNewStrT2A(szRegion);

    // Extract the build key (optional)
    if(ExtractVersionedArgument(pArgs, FIELD_OFFSET(CASC_OPEN_STORAGE_ARGS, szBuildKey), &szBuildKey) && szBuildKey != NULL)
        hs->szBuildKey = CascNewStrT2A(szBuildKey);

    // Merge features
    hs->dwFeatures |= (dwFeatures & (CASC_FEATURE_DATA_ARCHIVES | CASC_FEATURE_DATA_FILES | CASC_FEATURE_ONLINE));
    hs->dwFeatures |= (pArgs->dwFlags & CASC_FEATURE_FORCE_DOWNLOAD);
    hs->dwFeatures |= (BuildFileType == CascVersions) ? CASC_FEATURE_ONLINE : 0;
    hs->BuildFileType = BuildFileType;

    // Copy the name of the build file
    hs->szMainFile = CascNewStr(szMainFile);

    // Construct the root path from the name of the build file
    CASC_PATH<TCHAR> RootPath(szMainFile, NULL);
    hs->szRootPath = RootPath.New(true);

    // If either of the root path or build file is known, it's an error
    if(hs->szRootPath == NULL || hs->szMainFile == NULL)
    {
        dwErrCode = ERROR_NOT_ENOUGH_MEMORY;
    }

    // Initialize variables for local CASC storages
    if(dwErrCode == ERROR_SUCCESS)
    {
        // For local (game) storages, we need the data and indices subdirectory
        if(hs->dwFeatures & CASC_FEATURE_DATA_ARCHIVES)
        {
            if(CheckArchiveFilesDirectories(hs) != ERROR_SUCCESS)
                hs->dwFeatures &= ~CASC_FEATURE_DATA_ARCHIVES;