public TiffIfdEntryInfo(ushort tag, TiffType type, int count, byte[] data)
{
Tag = tag;
Type = type;
Count = count;
Data = data;
}
public byte[] ConvertToBytes(TiffType type, uint value)
{
switch (type)
{
case TiffType.Byte:
return(new byte[] { (byte)value });
case TiffType.Short:
return(BitConverter.GetBytes((ushort)value).WithByteOrder(_byteOrder));
case TiffType.Long:
return(BitConverter.GetBytes((uint)value).WithByteOrder(_byteOrder));
case TiffType.SByte:
return(BitConverter.GetBytes((sbyte)value));
case TiffType.SShort:
return(BitConverter.GetBytes((short)value).WithByteOrder(_byteOrder));
case TiffType.SLong:
return(BitConverter.GetBytes((int)value).WithByteOrder(_byteOrder));
default:
throw new InvalidOperationException("TiffIfdBuilder cannot convert this data type.");
}
}
public static int SizeOfDataType(TiffType type)
{
switch (type)
{
case TiffType.Byte:
case TiffType.Ascii:
case TiffType.SByte:
case TiffType.Undefined:
return(1);
case TiffType.Short:
case TiffType.SShort:
return(2);
case TiffType.Long:
case TiffType.SLong:
case TiffType.Float:
case TiffType.Ifd:
return(4);
case TiffType.Rational:
case TiffType.SRational:
case TiffType.Double:
return(8);
default:
return(0);
}
}
public void GetFillOrder_ReturnsValue(ByteOrder byteOrder, TiffType type, int?data, TiffFillOrder expectedResult)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.FillOrder, type, data, byteOrder).Ifd;
var result = ifd.GetFillOrder(byteOrder);
Assert.Equal(expectedResult, result);
}
public void GetGrayResponseUnit_ReturnsValue(ByteOrder byteOrder, TiffType type, int?data, double expectedResult)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.GrayResponseUnit, type, data, byteOrder).Ifd;
var result = ifd.GetGrayResponseUnit(byteOrder);
Assert.Equal(expectedResult, result);
}
public void GetPhotometricInterpretation_ReturnsValue(ByteOrder byteOrder, TiffType type, int?data, TiffPhotometricInterpretation?expectedResult)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.PhotometricInterpretation, type, data, byteOrder).Ifd;
var result = ifd.GetPhotometricInterpretation(byteOrder);
Assert.Equal(expectedResult, result);
}
public void GetPlanarConfiguraion_ReturnsValue(ByteOrder byteOrder, TiffType type, int?data, TiffPlanarConfiguration expectedResult)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.PlanarConfiguration, type, data, byteOrder).Ifd;
var result = ifd.GetPlanarConfiguration(byteOrder);
Assert.Equal(expectedResult, result);
}
public void GetResolutionUnit_ReturnsValue(ByteOrder byteOrder, TiffType type, int?data, TiffResolutionUnit expectedResult)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.ResolutionUnit, type, data, byteOrder).Ifd;
var result = ifd.GetResolutionUnit(byteOrder);
Assert.Equal(expectedResult, result);
}
private uint insertData(TiffType type, int v)
{
int t = (int)type;
if (m_header.tiff_magic == TIFF_BIGENDIAN)
return (((uint)v & m_typemask[t]) << m_typeshift[t]);
return ((uint)v & m_typemask[t]);
}
public PRVW(byte[] content, uint offset)
{
Size = TiffType.getInt(offset, content, true);;
Name = Encoding.ASCII.GetString(content, (int)offset + 4, 4).ToString();
JPGSize = TiffType.getInt(offset + 0x14, content, true);
JPG = new byte[JPGSize];
Array.Copy(content, offset + 0x18, JPG, 0, JPGSize);
}
/// <summary>
/// Writes the specified TIFF tag data to the stream.
/// </summary>
/// <param name="stream">The stream to write to.</param>
/// <param name="tag">The <see cref="TiffTag"/> to write.</param>
/// <param name="type">The <see cref="TiffType"/> being written.</param>
/// <param name="count">The number of values being written.</param>
/// <param name="value">The actual value to be written.</param>
private static void WriteTiffTag(Stream stream, TiffTag tag, TiffType type, uint count, uint value)
{
if (stream == null) return;
stream.Write(BitConverter.GetBytes((uint)tag), 0, 2);
stream.Write(BitConverter.GetBytes((uint)type), 0, 2);
stream.Write(BitConverter.GetBytes(count), 0, 4);
stream.Write(BitConverter.GetBytes(value), 0, 4);
}
private bool writeRationalPair(TiffDirEntry[] entries, int dirOffset, TiffType type, TiffTag tag1, float v1, TiffTag tag2, float v2)
{
if (!writeRational(type, tag1, ref entries[dirOffset], v1))
return false;
if (!writeRational(type, tag2, ref entries[dirOffset + 1], v2))
return false;
return true;
}
public TiffIfdBuilder WithIfdEntry(ushort tag, TiffType type, uint?value)
{
if (value != null)
{
var data = ConvertToBytes(type, value.Value);
_entries.Add(new TiffIfdEntryInfo(tag, type, 1, data));
}
return(this);
}
public TiffIfdBuilder WithIfdEntry(ushort tag, TiffType type, uint[] value)
{
if (value != null)
{
var data = value.SelectMany(v => ConvertToBytes(type, v)).ToArray();
_entries.Add(new TiffIfdEntryInfo(tag, type, value.Length, data));
}
return(this);
}
public TiffIfdBuilder WithIfdEntry(ushort tag, TiffType type, string value)
{
if (value != null)
{
var data = Encoding.ASCII.GetBytes((string)value);
_entries.Add(new TiffIfdEntryInfo(tag, type, data.Length, data));
}
return(this);
}
public async Task ReadExtraSamplesAsync_ReturnsValue(ByteOrder byteOrder, TiffType type, uint[] data, TiffExtraSamples[] expectedResult)
{
var ifdStreamTuple = TiffIfdBuilder.GenerateIfd(TiffTags.ExtraSamples, type, data, byteOrder);
var ifd = ifdStreamTuple.Ifd;
var stream = ifdStreamTuple.Stream;
var result = await ifd.ReadExtraSamplesAsync(stream, byteOrder);
Assert.Equal(expectedResult, result);
}
public TiffIfdBuilder WithIfdEntry(ushort tag, TiffType type, Rational?value)
{
if (value != null)
{
var rational = value.Value;
var data = new[] { rational.Numerator, rational.Denominator }.SelectMany(v => ConvertToBytes(TiffType.Long, v)).ToArray();
_entries.Add(new TiffIfdEntryInfo(tag, type, 1, data));
}
return(this);
}
public void GetRowsPerStrip_ReturnsValue(ByteOrder byteOrder, TiffType type, uint?value)
{
var ifd = TiffIfdBuilder.GenerateIfd(TiffTags.RowsPerStrip, type, value, byteOrder).Ifd;
var result = ifd.GetRowsPerStrip(byteOrder);
if (value == null)
{
value = UInt32.MaxValue; // Default value
}
Assert.Equal(value, result);
}
public static TiffIfdEntry ParseIfdEntry(byte[] bytes, int offset, ByteOrder byteOrder)
{
ushort tag = DataConverter.ToUInt16(bytes, offset + 0, byteOrder);
TiffType type = (TiffType)DataConverter.ToUInt16(bytes, offset + 2, byteOrder);
int count = DataConverter.ToInt32(bytes, offset + 4, byteOrder);
byte[] value = DataConverter.ToBytes(bytes, offset + 8, 4);
return(new TiffIfdEntry {
Tag = tag, Type = type, Count = count, Value = value
});
}
/// <summary>
/// Initializes a new instance of the <see cref="TiffFieldInfo"/> class.
/// </summary>
/// <param name="tag">The tag to describe.</param>
/// <param name="readCount">The number of values to read when reading field information or
/// one of <see cref="Variable"/>, <see cref="Spp"/> and <see cref="Variable2"/>.</param>
/// <param name="writeCount">The number of values to write when writing field information
/// or one of <see cref="Variable"/>, <see cref="Spp"/> and <see cref="Variable2"/>.</param>
/// <param name="type">The type of the field value.</param>
/// <param name="bit">Index of the bit to use in "Set Fields Vector" when this instance
/// is merged into field info collection. Take a look at <see cref="FieldBit"/> class.</param>
/// <param name="okToChange">If true, then it is permissible to set the tag's value even
/// after writing has commenced.</param>
/// <param name="passCount">If true, then number of value elements should be passed to
/// <see cref="Tiff.SetField"/> method as second parameter (right after tag type AND
/// before value itself).</param>
/// <param name="name">The name (description) of the tag this instance describes.</param>
public TiffFieldInfo(TiffTag tag, short readCount, short writeCount,
TiffType type, short bit, bool okToChange, bool passCount, string name)
{
m_tag = tag;
m_readCount = readCount;
m_writeCount = writeCount;
m_type = type;
m_bit = bit;
m_okToChange = okToChange;
m_passCount = passCount;
m_name = name;
}
private bool writeRational(TiffType type, TiffTag tag, ref TiffDirEntry dir, float v)
{
dir.tdir_tag = tag;
dir.tdir_type = type;
dir.tdir_count = 1;
float[] a = new float[1];
a[0] = v;
if (!writeRationalArray(ref dir, a))
return false;
return true;
}
/// <summary>
/// Retrieves field information for the tag with specified name.
/// </summary>
/// <param name="name">The name of the tag to retrieve field information for.</param>
/// <param name="type">The tiff data type to use us additional filter.</param>
/// <returns>The field information for specified tag with specified type or <c>null</c> if
/// the field information wasn't found.</returns>
public TiffFieldInfo FindFieldInfoByName(string name, TiffType type)
{
if (m_foundfield != null && m_foundfield.Name == name &&
(type == TiffType.Any || type == m_foundfield.Type))
{
return m_foundfield;
}
// If we are invoked with no field information, then just return.
if (m_fieldinfo == null)
return null;
m_foundfield = null;
foreach (TiffFieldInfo info in m_fieldinfo)
{
if (info != null && info.Name == name &&
(type == TiffType.Any || type == info.Type))
{
m_foundfield = info;
break;
}
}
return m_foundfield;
}
/*
* Return size of TiffDataType in bytes.
*
* XXX: We need a separate function to determine the space needed
* to store the value. For TiffType.Rational values DataWidth()
* returns 8, but we use 4-byte float to represent rationals.
*/
internal static int dataSize(TiffType type)
{
switch (type)
{
case TiffType.Byte:
case TiffType.SByte:
case TiffType.ASCII:
case TiffType.Undefined:
return 1;
case TiffType.Short:
case TiffType.SShort:
return 2;
case TiffType.Long:
case TiffType.SLong:
case TiffType.Float:
case TiffType.IFD:
case TiffType.Rational:
case TiffType.SRational:
return 4;
case TiffType.Double:
return 8;
default:
return 0;
}
}
private static TiffFieldInfo createAnonFieldInfo(TiffTag tag, TiffType field_type)
{
TiffFieldInfo fld = new TiffFieldInfo(tag, TiffFieldInfo.Variable2,
TiffFieldInfo.Variable2, field_type, FieldBit.Custom, true, true, null);
// note that this name is a special sign to Close() and
// setupFieldInfo() to free the field
fld.Name = string.Format(CultureInfo.InvariantCulture, "Tag {0}", tag);
return fld;
}
/// <summary>
/// Writes an array of "type" values for a specified tag (i.e. this is
/// a tag which is allowed to have different types, e.g. SMaxSampleType).
/// Internally the data values are represented as double since a double
/// can hold any of the TIFF tag types (yes, this should really be an abstract
/// type tany_t for portability). The data is converted into the specified
/// type in a temporary buffer and then handed off to the appropriate array
/// writer.
/// </summary>
private bool writeAnyArray(TiffType type, TiffTag tag, ref TiffDirEntry dir, int n, double[] v)
{
dir.tdir_tag = tag;
dir.tdir_type = type;
dir.tdir_count = n;
bool failed = false;
switch (type)
{
case TiffType.Byte:
case TiffType.SByte:
{
byte[] bp = new byte[n];
for (int i = 0; i < n; i++)
bp[i] = (byte)v[i];
if (!writeByteArray(ref dir, bp))
failed = true;
}
break;
case TiffType.Short:
case TiffType.SShort:
{
short[] bp = new short[n];
for (int i = 0; i < n; i++)
bp[i] = (short)v[i];
if (!writeShortArray(ref dir, bp))
failed = true;
}
break;
case TiffType.Long:
case TiffType.SLong:
{
int[] bp = new int[n];
for (int i = 0; i < n; i++)
bp[i] = (int)v[i];
if (!writeLongArray(ref dir, bp))
failed = true;
}
break;
case TiffType.Float:
{
float[] bp = new float[n];
for (int i = 0; i < n; i++)
bp[i] = (float)v[i];
if (!writeFloatArray(ref dir, bp))
failed = true;
}
break;
case TiffType.Double:
if (!writeDoubleArray(ref dir, v))
failed = true;
break;
default:
// NoType
// ASCII
// Undefined
// Rational
// SRational
failed = true;
break;
}
return !failed;
}
/*
* Setup a directory entry that references a samples/pixel array of ``type''
* values and (potentially) write the associated indirect values. The source
* data from GetField() for the specified tag must be returned as double.
*/
private bool writePerSampleAnys(TiffType type, TiffTag tag, ref TiffDirEntry dir)
{
double[] w = new double[m_dir.td_samplesperpixel];
FieldValue[] result = GetField(tag);
double v = result[0].ToDouble();
for (short i = 0; i < m_dir.td_samplesperpixel; i++)
w[i] = v;
bool status = writeAnyArray(type, tag, ref dir, m_dir.td_samplesperpixel, w);
return status;
}
/// <summary>
/// Gets the number of bytes occupied by the item of given type.
/// </summary>
/// <param name="type">The type.</param>
/// <returns>The number of bytes occupied by the <paramref name="type"/> or 0 if unknown
/// data type is supplied.</returns>
public static int DataWidth(TiffType type)
{
switch (type)
{
case TiffType.NoType:
case TiffType.Byte:
case TiffType.ASCII:
case TiffType.SByte:
case TiffType.Undefined:
return 1;
case TiffType.Short:
case TiffType.SShort:
return 2;
case TiffType.Long:
case TiffType.SLong:
case TiffType.Float:
case TiffType.IFD:
return 4;
case TiffType.Rational:
case TiffType.SRational:
case TiffType.Double:
return 8;
default:
// will return 0 for unknown types
return 0;
}
}
public tagToCopy(TiffTag _tag, short _count, TiffType _type)
{
tag = _tag;
count = _count;
type = _type;
}
private static void copyTag(Tiff inImage, Tiff outImage, TiffTag tag, short count, TiffType type)
{
FieldValue[] result = null;
switch (type)
{
case TiffType.SHORT:
result = inImage.GetField(tag);
if (result != null)
{
if (count == 1)
outImage.SetField(tag, result[0]);
else if (count == 2)
outImage.SetField(tag, result[0], result[1]);
else if (count == 4)
outImage.SetField(tag, result[0], result[1], result[2]);
else if (count == -1)
outImage.SetField(tag, result[0], result[1]);
}
break;
case TiffType.LONG:
result = inImage.GetField(tag);
if (result != null)
outImage.SetField(tag, result[0]);
break;
case TiffType.RATIONAL:
result = inImage.GetField(tag);
if (result != null)
outImage.SetField(tag, result[0]);
break;
case TiffType.ASCII:
result = inImage.GetField(tag);
if (result != null)
outImage.SetField(tag, result[0]);
break;
case TiffType.DOUBLE:
result = inImage.GetField(tag);
if (result != null)
outImage.SetField(tag, result[0]);
break;
default:
Tiff.Error(inImage.FileName(),
"Data type {0} is not supported, tag {1} skipped.", tag, type);
break;
}
}
/// <summary>
/// Writes the specified TIFF tag data to the stream.
/// </summary>
/// <param name="stream">The stream to write to.</param>
/// <param name="tag">The <see cref="TiffTag"/> to write.</param>
/// <param name="type">The <see cref="TiffType"/> being written.</param>
/// <param name="count">The number of values being written.</param>
/// <param name="value">The actual value to be written.</param>
private static void WriteTiffTag(Stream stream, TiffTag tag, TiffType type, uint count, uint value)
{
if (stream == null) return;
stream.Write(BitConverter.GetBytes((uint)tag), 0, 2);
stream.Write(BitConverter.GetBytes((uint)type), 0, 2);
stream.Write(BitConverter.GetBytes(count), 0, 4);
stream.Write(BitConverter.GetBytes(value), 0, 4);
}
/// <summary>
/// Writes an array of "type" values for a specified tag (i.e. this is
/// a tag which is allowed to have different types, e.g. SMaxSampleType).
/// Internally the data values are represented as double since a double
/// can hold any of the TIFF tag types (yes, this should really be an abstract
/// type tany_t for portability). The data is converted into the specified
/// type in a temporary buffer and then handed off to the appropriate array
/// writer.
/// </summary>
private bool writeAnyArray(TiffType type, TiffTag tag, ref TiffDirEntry dir, int n, double[] v)
{
dir.tdir_tag = tag;
dir.tdir_type = type;
dir.tdir_count = n;
bool failed = false;
switch (type)
{
case TiffType.BYTE:
case TiffType.SBYTE:
{
byte[] bp = new byte [n];
for (int i = 0; i < n; i++)
bp[i] = (byte)v[i];
if (!writeByteArray(ref dir, bp))
failed = true;
}
break;
case TiffType.SHORT:
case TiffType.SSHORT:
{
short[] bp = new short [n];
for (int i = 0; i < n; i++)
bp[i] = (short)v[i];
if (!writeShortArray(ref dir, bp))
failed = true;
}
break;
case TiffType.LONG:
case TiffType.SLONG:
{
int[] bp = new int [n];
for (int i = 0; i < n; i++)
bp[i] = (int)v[i];
if (!writeLongArray(ref dir, bp))
failed = true;
}
break;
case TiffType.FLOAT:
{
float[] bp = new float [n];
for (int i = 0; i < n; i++)
bp[i] = (float)v[i];
if (!writeFloatArray(ref dir, bp))
failed = true;
}
break;
case TiffType.DOUBLE:
if (!writeDoubleArray(ref dir, v))
failed = true;
break;
default:
// NOTYPE
// ASCII
// UNDEFINED
// RATIONAL
// SRATIONAL
failed = true;
break;
}
return !failed;
}
/*
* Return size of TiffDataType in bytes.
*
* XXX: We need a separate function to determine the space needed
* to store the value. For TiffType.RATIONAL values DataWidth()
* returns 8, but we use 4-byte float to represent rationals.
*/
internal static int dataSize(TiffType type)
{
switch (type)
{
case TiffType.BYTE:
case TiffType.SBYTE:
case TiffType.ASCII:
case TiffType.UNDEFINED:
return 1;
case TiffType.SHORT:
case TiffType.SSHORT:
return 2;
case TiffType.LONG:
case TiffType.SLONG:
case TiffType.FLOAT:
case TiffType.IFD:
case TiffType.RATIONAL:
case TiffType.SRATIONAL:
return 4;
case TiffType.DOUBLE:
return 8;
default:
return 0;
}
}
/// <summary>
/// Gets the number of bytes occupied by the item of given type.
/// </summary>
/// <param name="type">The type.</param>
/// <returns>The number of bytes occupied by the <paramref name="type"/> or 0 if unknown
/// data type is supplied.</returns>
public static int DataWidth(TiffType type)
{
switch (type)
{
case TiffType.NOTYPE:
case TiffType.BYTE:
case TiffType.ASCII:
case TiffType.SBYTE:
case TiffType.UNDEFINED:
return 1;
case TiffType.SHORT:
case TiffType.SSHORT:
return 2;
case TiffType.LONG:
case TiffType.SLONG:
case TiffType.FLOAT:
case TiffType.IFD:
return 4;
case TiffType.RATIONAL:
case TiffType.SRATIONAL:
case TiffType.DOUBLE:
return 8;
default:
// will return 0 for unknown types
return 0;
}
}
/// <summary>
/// Retrieves field information for the specified tag.
/// </summary>
/// <param name="tag">The tag to retrieve field information for.</param>
/// <param name="type">The tiff data type to use us additional filter.</param>
/// <returns>The field information for specified tag with specified type or <c>null</c> if
/// the field information wasn't found.</returns>
public TiffFieldInfo FindFieldInfo(TiffTag tag, TiffType type)
{
if (m_foundfield != null && m_foundfield.Tag == tag &&
(type == TiffType.ANY || type == m_foundfield.Type))
{
return m_foundfield;
}
// If we are invoked with no field information, then just return.
if (m_fieldinfo == null)
return null;
m_foundfield = null;
foreach (TiffFieldInfo info in m_fieldinfo)
{
if (info != null && info.Tag == tag && (type == TiffType.ANY || type == info.Type))
{
m_foundfield = info;
break;
}
}
return m_foundfield;
}
