private static IvffResult CheckBlockFirst(
Stream stream,
ref IvCommonCheckWork checkWork,
int divideSize,
ref IvCommonBlockHeader workHeader,
uint blockID)
{
return(Ivff.CheckBlockFirst <IvCommonBlockHeader>(stream, out checkWork, divideSize, ref workHeader, ref workHeader, blockID));
}
private static IvffResult CheckFileBlockFirst(
Stream stream,
ref IvaFileHandler ivaHandler,
BlockOffsetIndex index,
int divideSize,
ref IvCommonBlockHeader blockHeader)
{
uint blockID = Ivff.BLOCK_ID_TABLE[index];
uint num = ivaHandler.CommonHandler.BlockOffsetTable[(int)index];
stream.Seek((long)num, SeekOrigin.Begin);
return(Ivff.CheckBlockFirst <IvCommonBlockHeader>(stream, out ivaHandler.CommonHandler.CheckerWork, divideSize, ref blockHeader, ref blockHeader, blockID));
}
private static IvffResult LoadIvCommonFilehandler(
Stream stream,
ref IvCommonFileHandler commonHandler)
{
IvffResult result = IvffResult.OK;
int num = 0;
bool flag = true;
IvCommonBlockHeader workHeader = new IvCommonBlockHeader();
while (flag)
{
result = Ivff.CheckBlockFirst(stream, ref commonHandler.CheckerWork, 0, ref workHeader, 0U);
if (!Ivff.IsResultError(result))
{
switch (workHeader.BlockID)
{
case 4281929:
if (num != 0)
{
return(IvffResult.INVALID);
}
commonHandler.VersionInfofHeader = workHeader;
result = Ivff.LoadBlock <IvVersionInfoData>(stream, ref commonHandler.VersionInfo, (long)(commonHandler.VersionInfofHeader.FilePosition + (int)commonHandler.VersionInfofHeader.BlockHeaderSize));
if (!Ivff.IsResultError(result))
{
if (!IvaUtils.IsCompatibleSettingVersion(Ivff.CURRENT_FILE_VERSION, commonHandler.VersionInfo.MinFileVersion))
{
result = IvffResult.UNCOMPATIBLE;
break;
}
if (commonHandler.VersionInfo.FileSize < 0U || commonHandler.VersionInfo.FileSize > (uint)int.MaxValue)
{
result = IvffResult.INVALID;
break;
}
if ((long)commonHandler.VersionInfo.FileSize != stream.Length)
{
result = IvffResult.INVALID;
break;
}
break;
}
break;
case 5264969:
case 5527113:
return(IvffResult.INVALID);
case 5656141:
case 1196379203:
case 1196379216:
case 1230195795:
case 1279480653:
case 1279611725:
case 1280003650:
case 1280529238:
case 1296520008:
case 1314144592:
case 1347699024:
case 1396855638:
case 1397642070:
case 1397969750:
case 1414547283:
case 1414550593:
case 1498565971:
result = IvffResult.INVALID;
break;
case 5657430:
if (num == 0)
{
return(IvffResult.INVALID);
}
commonHandler.CameraInfofHeader = workHeader;
result = Ivff.LoadBlock <VisionSensorVersion>(stream, ref commonHandler.CameraVersion, (long)(commonHandler.CameraInfofHeader.FilePosition + (int)commonHandler.CameraInfofHeader.BlockHeaderSize));
break;
case 1397116738:
if (num == 0)
{
return(IvffResult.INVALID);
}
commonHandler.BlockOffsetHeader = workHeader;
result = Ivff.LoadBlock <uint>(stream, ref commonHandler.BlockOffsetTable, (long)(commonHandler.BlockOffsetHeader.FilePosition + (int)commonHandler.BlockOffsetHeader.BlockHeaderSize));
flag = false;
break;
default:
result = IvffResult.OK;
break;
}
if (!Ivff.IsResultError(result))
{
try
{
stream.Seek((long)(workHeader.FilePosition + workHeader.BlockSize), SeekOrigin.Begin);
}
catch (Exception ex)
{
break;
}
++num;
}
else
{
break;
}
}
else
{
break;
}
}
if (Ivff.IsResultError(result))
{
return(IvffResult.FATAL_ERROR);
}
return(result);
}