public virtual void Extract(RandomAccessReader reader, Com.Drew.Metadata.Metadata metadata)
{
// TODO review whether the 'tagPtr' values below really do require ICC processing to work with a RandomAccessReader
IccDirectory directory = metadata.GetOrCreateDirectory<IccDirectory>();
try
{
directory.SetInt(IccDirectory.TagProfileByteCount, reader.GetInt32(IccDirectory.TagProfileByteCount));
// 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);
}
}