private void ShowData(IFDEntry ifde)
{
var count = ifde.count;
Console.Write("{0:X8} {1:X4} {2:X4} {3:X8} {4:X8} {5,27} {6,9} ",
ifde.filePosition, ifde.originalTag, (int)ifde.fieldType, count, ifde.dataOffset, ifde.tag, ifde.fieldType);
bool truncated = false;
switch (ifde.fieldType)
{
case IFDEntry.FieldType.ASCII:
if (32 < count)
{
count = 32;
truncated = true;
}
for (int i = 0; i < count; ++i)
{
var b = ifde.data[i];
Console.Write((char)b);
}
break;
case IFDEntry.FieldType.BYTE:
case IFDEntry.FieldType.SBYTE:
case IFDEntry.FieldType.UNDEFINED:
if (12 < count)
{
count = 12;
truncated = true;
}
for (int i = 0; i < count; ++i)
{
var b = ifde.data[i];
Console.Write("{0:X2} ", b);
}
break;
case IFDEntry.FieldType.SHORT:
case IFDEntry.FieldType.SSHORT:
if (8 < count)
{
count = 8;
truncated = true;
}
for (int i = 0; i < count; ++i)
{
var b = BitConverter.ToInt16(ifde.data, i * 2);
Console.Write("{0:X4} ", b);
}
break;
case IFDEntry.FieldType.FLOAT:
if (4 < count)
{
count = 4;
truncated = true;
}
for (int i = 0; i < count; ++i)
{
var b = BitConverter.ToSingle(ifde.data, i * 4);
Console.Write("{0:G4} ", b);
}
break;
case IFDEntry.FieldType.LONG:
case IFDEntry.FieldType.SLONG:
if (4 < count)
{
count = 4;
truncated = true;
}
for (int i = 0; i < count; ++i)
{
var b = BitConverter.ToInt32(ifde.data, i * 4);
Console.Write("{0:X8} ", b);
}
break;
case IFDEntry.FieldType.DOUBLE:
/*if (4 < count) {
* count = 4;
* truncated = true;
* }*/
for (int i = 0; i < count; ++i)
{
var b = BitConverter.ToDouble(ifde.data, i * 8);
Console.Write("{0:G4} ", b);
}
break;
case IFDEntry.FieldType.RATIONAL:
case IFDEntry.FieldType.SRATIONAL:
/*if (3 < count) {
* count = 3;
* truncated = true;
* }*/
for (int i = 0; i < count; ++i)
{
var n = BitConverter.ToInt32(ifde.data, i * 8 + 0);
var d = BitConverter.ToInt32(ifde.data, i * 8 + 4);
Console.Write("{0}/{1} ", n, d);
}
break;
case IFDEntry.FieldType.Unknown:
break;
}
if (truncated)
{
Console.Write("... ");
}
// 特殊なタグの表示。
switch (ifde.tag)
{
case IFDEntry.Tag.PhotometricInterpretation:
if (Enum.IsDefined(typeof(IFDEntry.PhotometricInterpretationType), (int)ifde.dataOffset))
{
var v = (IFDEntry.PhotometricInterpretationType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.Compression:
if (Enum.IsDefined(typeof(IFDEntry.CompressionType), (int)ifde.dataOffset))
{
var v = (IFDEntry.CompressionType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.Orientation:
if (Enum.IsDefined(typeof(IFDEntry.OrientationType), (int)ifde.dataOffset))
{
var v = (IFDEntry.OrientationType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.PlanarConfiguration:
if (Enum.IsDefined(typeof(IFDEntry.PlanarConfigurationType), (int)ifde.dataOffset))
{
var v = (IFDEntry.PlanarConfigurationType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.CFALayout:
if (Enum.IsDefined(typeof(IFDEntry.CFALayoutType), (int)ifde.dataOffset))
{
var v = (IFDEntry.CFALayoutType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.SampleFormat:
if (Enum.IsDefined(typeof(IFDEntry.SampleFormatType), (int)ifde.dataOffset))
{
var v = (IFDEntry.SampleFormatType)ifde.dataOffset;
Console.Write("{0}", v);
}
break;
case IFDEntry.Tag.CFARepeatPatternDim:
if (ifde.count != 2 || ifde.fieldType != IFDEntry.FieldType.SHORT)
{
Console.Write("Error: CFARepeatPatternDim malformat");
}
else
{
var sa = ifde.GetDataAsUShortArray();
Console.Write("Row={0} Cols={1}", sa[0], sa[1]);
}
break;
case IFDEntry.Tag.ImageWidth:
if (ifde.count != 1)
{
Console.Write("Error: ImageWidth malformat");
}
else
{
Console.Write("Width={0}pixel", ifde.dataOffset);
}
break;
case IFDEntry.Tag.BitsPerSample:
if (ifde.fieldType != IFDEntry.FieldType.SHORT)
{
Console.Write("Error: BitsPerSample malformat");
}
else
{
Console.Write(", In decimal: ");
var sa = ifde.GetDataAsUShortArray();
for (int i = 0; i < sa.Length; ++i)
{
Console.Write("{0} ", sa[i]);
}
}
break;
case IFDEntry.Tag.ISOSpeedRatings:
if (ifde.fieldType != IFDEntry.FieldType.SHORT)
{
}
else
{
Console.Write(", In decimal: ");
var sa = ifde.GetDataAsUShortArray();
Console.Write("{0} ", sa[0]);
}
break;
case IFDEntry.Tag.ImageLength:
if (ifde.count != 1)
{
Console.Write("Error: ImageLength malformat");
}
else
{
Console.Write("Height={0}pixel", ifde.dataOffset);
}
break;
case IFDEntry.Tag.CFAPlaneColor:
if (ifde.fieldType != IFDEntry.FieldType.BYTE)
{
Console.Write("Error: CFAPlaneColor malformat");
}
else
{
var ba = ifde.GetDataAsByteArray();
for (int i = 0; i < ba.Length; ++i)
{
if (Enum.IsDefined(typeof(IFDEntry.CFAPatternType), (int)ba[i]))
{
var v = (IFDEntry.CFAPatternType)(int) ba[i];
Console.Write("{0} ", v);
}
}
}
break;
case IFDEntry.Tag.CFAPattern: {
var ba = ifde.GetDataAsByteArray();
for (int i = 0; i < ba.Length; ++i)
{
if (Enum.IsDefined(typeof(IFDEntry.CFAPatternType), (int)ba[i]))
{
var v = (IFDEntry.CFAPatternType)(int) ba[i];
Console.Write("{0} ", v);
}
}
}
break;
case IFDEntry.Tag.LightSource:
case IFDEntry.Tag.CalibrationIlluminant1:
case IFDEntry.Tag.CalibrationIlluminant2:
if (Enum.IsDefined(typeof(IFDEntry.LightSourceType), (int)ifde.dataOffset))
{
var v = (IFDEntry.LightSourceType)ifde.dataOffset;
Console.Write("{0} ", v);
}
else
{
Console.Write("reserved ");
}
break;
default:
break;
}
Console.WriteLine("");
}
private bool ReadIFDEntry(BinaryReader br, IFDType ifdt, out IFDEntry ifdEntry)
{
long pos = br.BaseStream.Position;
uint originalTag = ReadUInt16(br);
int t = (int)originalTag;
if (ifdt == IFDType.Gps)
{
t += 0x10000;
}
else
{
mAppearedTags.Add(t);
}
int f = ReadUInt16(br);
int count = ReadInt32(br);
uint dataOffset = ReadUInt32(br);
var tag = IFDEntry.Tag.Unknown;
if (Enum.IsDefined(typeof(IFDEntry.Tag), t))
{
tag = (IFDEntry.Tag)t;
}
var ft = IFDEntry.FieldType.Unknown;
if (Enum.IsDefined(typeof(IFDEntry.FieldType), f))
{
ft = (IFDEntry.FieldType)f;
}
int dataBytes = IFDEntry.DataBytes(ft, count);
if (4 < dataBytes)
{
// dataOffset==データが置いてある位置。
long cur = br.BaseStream.Position;
br.BaseStream.Seek(dataOffset, SeekOrigin.Begin);
ifdEntry = CreateIFDEntry(br, tag, ft, count);
ifdEntry.dataOffset = dataOffset;
br.BaseStream.Seek(cur, SeekOrigin.Begin);
}
else
{
// dataPosをもう一度データとして読む。
long cur = br.BaseStream.Position;
br.BaseStream.Seek(pos + 8, SeekOrigin.Begin);
ifdEntry = CreateIFDEntry(br, tag, ft, count);
br.BaseStream.Seek(cur, SeekOrigin.Begin);
}
ifdEntry.originalTag = originalTag;
ifdEntry.filePosition = pos;
return(true);
}
