NetRadiant KTX

if ( type ) {
    KTX_Decoder* decoder = NULL;
    switch ( type )
    {
    case KTX_TYPE_UNSIGNED_BYTE:
        switch ( format )
        {
        case KTX_FORMAT_ALPHA:
            decoder = new KTX_Decoder_A8( bigEndian );
            break;
        case KTX_FORMAT_RGB:
            decoder = new KTX_Decoder_RGB8( bigEndian );
            break;
        case KTX_FORMAT_RGBA:
            decoder = new KTX_Decoder_RGBA8( bigEndian );
            break;
        case KTX_FORMAT_LUMINANCE:
            decoder = new KTX_Decoder_L8( bigEndian );
            break;
        case KTX_FORMAT_LUMINANCE_ALPHA:
            decoder = new KTX_Decoder_LA8( bigEndian );
            break;
        case KTX_FORMAT_BGR:
            decoder = new KTX_Decoder_BGR8( bigEndian );
            break;
        case KTX_FORMAT_BGRA:
            decoder = new KTX_Decoder_BGRA8( bigEndian );
            break;
        }
        break;
    case KTX_TYPE_UNSIGNED_SHORT_4_4_4_4:
        if ( format == KTX_FORMAT_RGBA ) {
            decoder = new KTX_Decoder_RGBA4( bigEndian );
        }
    }
    case KTX_TYPE_UNSIGNED_SHORT_5_5_5_1:
        if ( format == KTX_FORMAT_RGBA ) {
            decoder = new KTX_Decoder_RGBA5( bigEndian );
        }
    }
    case KTX_TYPE_UNSIGNED_SHORT_5_6_5:
        if ( format == KTX_FORMAT_RGB ) {
            decoder = new KTX_Decoder_RGB5( bigEndian );
        }
    }

    if ( !decoder ) {
        globalErrorStream() << "LoadKTX: KTX image has an unsupported pixel type " << type << " or format " << format << "\n";
        image->release();
        return 0;
    }

    unsigned int inRowLength = width * decoder->GetPixelSize();
    unsigned int inPadding = ( ( inRowLength + 3 ) & ~3 ) - inRowLength;
    unsigned int outStride = width * 4;
    byte* out = image.getRGBAPixels() + ( height - 1 ) * outStride;
    for ( unsigned int y = 0; y < height; y++, out -= outStride )
    {
        byte* row = out;
        for ( unsigned int x = 0; x < width; x++, row += 4 )
        {
            decoder->Decode( istream, row );
        }

        if ( padding ) {
            istream.seek( padding );
        }
    }

    delete decoder;
}
else {
    switch ( format )
    {
    case KTX_FORMAT_ETC1_RGB8:
        KTX_DecodeETC1( istream, *image );
        break;
    default:
        globalErrorStream() << "LoadKTX: KTX image has an unsupported compressed format " << format << "\n";
        image->release();
        return 0;
    }
}