public virtual void Extract([NotNull] RandomAccessReader reader, [NotNull] Com.Drew.Metadata.Metadata metadata)
{
// TODO review whether the 'tagPtr' values below really do require RandomAccessReader or whether SequentialReader may be used instead
IccDirectory directory = new IccDirectory();
try
{
int profileByteCount = reader.GetInt32(IccDirectory.TagProfileByteCount);
directory.SetInt(IccDirectory.TagProfileByteCount, profileByteCount);
// For these tags, the int value of the tag is in fact it's offset within the buffer.
Set4ByteString(directory, IccDirectory.TagCmmType, reader);
SetInt32(directory, IccDirectory.TagProfileVersion, reader);
Set4ByteString(directory, IccDirectory.TagProfileClass, reader);
Set4ByteString(directory, IccDirectory.TagColorSpace, reader);
Set4ByteString(directory, IccDirectory.TagProfileConnectionSpace, reader);
SetDate(directory, IccDirectory.TagProfileDatetime, reader);
Set4ByteString(directory, IccDirectory.TagSignature, reader);
Set4ByteString(directory, IccDirectory.TagPlatform, reader);
SetInt32(directory, IccDirectory.TagCmmFlags, reader);
Set4ByteString(directory, IccDirectory.TagDeviceMake, reader);
int temp = reader.GetInt32(IccDirectory.TagDeviceModel);
if (temp != 0)
{
if (temp <= unchecked ((int)(0x20202020)))
{
directory.SetInt(IccDirectory.TagDeviceModel, temp);
}
else
{
directory.SetString(IccDirectory.TagDeviceModel, GetStringFromInt32(temp));
}
}
SetInt32(directory, IccDirectory.TagRenderingIntent, reader);
SetInt64(directory, IccDirectory.TagDeviceAttr, reader);
float[] xyz = new float[] { reader.GetS15Fixed16(IccDirectory.TagXyzValues), reader.GetS15Fixed16(IccDirectory.TagXyzValues + 4), reader.GetS15Fixed16(IccDirectory.TagXyzValues + 8) };
directory.SetObject(IccDirectory.TagXyzValues, xyz);
// Process 'ICC tags'
int tagCount = reader.GetInt32(IccDirectory.TagTagCount);
directory.SetInt(IccDirectory.TagTagCount, tagCount);
for (int i = 0; i < tagCount; i++)
{
int pos = IccDirectory.TagTagCount + 4 + i * 12;
int tagType = reader.GetInt32(pos);
int tagPtr = reader.GetInt32(pos + 4);
int tagLen = reader.GetInt32(pos + 8);
sbyte[] b = reader.GetBytes(tagPtr, tagLen);
directory.SetByteArray(tagType, b);
}
}
catch (IOException ex)
{
directory.AddError("Exception reading ICC profile: " + ex.Message);
}
metadata.AddDirectory(directory);
}
/// <summary>
/// Performs the Jfif data extraction, adding found values to the specified
/// instance of
/// <see cref="Com.Drew.Metadata.Metadata"/>
/// .
/// </summary>
public virtual void Extract([NotNull] RandomAccessReader reader, [NotNull] Com.Drew.Metadata.Metadata metadata)
{
JfifDirectory directory = new JfifDirectory();
metadata.AddDirectory(directory);
try
{
// For JFIF, the tag number is also the offset into the segment
int ver = reader.GetUInt16(JfifDirectory.TagVersion);
directory.SetInt(JfifDirectory.TagVersion, ver);
int units = reader.GetUInt8(JfifDirectory.TagUnits);
directory.SetInt(JfifDirectory.TagUnits, units);
int height = reader.GetUInt16(JfifDirectory.TagResx);
directory.SetInt(JfifDirectory.TagResx, height);
int width = reader.GetUInt16(JfifDirectory.TagResy);
directory.SetInt(JfifDirectory.TagResy, width);
}
catch (IOException me)
{
directory.AddError(me.Message);
}
}