private TagTableEntry[] WriteTagData(ICCDataWriter writer, ICCProfile profile)
{
List <TagDataEntry> InData = new List <TagDataEntry>(profile.Data);
List <TagDataEntry[]> DupData = new List <TagDataEntry[]>();
while (InData.Count > 0)
{
var items = InData.Where(t => InData[0].Equals(t)).ToArray();
DupData.Add(items);
foreach (var item in items)
{
InData.Remove(item);
}
}
List <TagTableEntry> Table = new List <TagTableEntry>();
//(Header size) + (entry count) + (nr of entries) * (size of table entry)
writer.DataStream.Position = 128 + 4 + profile.Data.Count * 12;;
foreach (var entry in DupData)
{
TagTableEntry tentry;
writer.WriteTagDataEntry(entry[0], out tentry);
foreach (var item in entry)
{
Table.Add(new TagTableEntry(item.TagSignature, tentry.Offset, tentry.DataSize));
}
}
return(Table.ToArray());
}
/// <summary>
/// Reads the header of an <see cref="ICCProfile"/> from a given byte array
/// </summary>
/// <param name="data">the ICC data</param>
/// <returns>the read ICC profile header</returns>
public ICCProfile ReadHeader(byte[] data)
{
var reader = new ICCDataReader(data);
var profile = new ICCProfile();
ReadHeader(reader, profile);
return(profile);
}
private void ReadTagData(ICCDataReader reader, TagTableEntry[] table, ICCProfile profile)
{
for (int i = 0; i < table.Length; i++)
{
TagDataEntry entry = reader.ReadTagDataEntry(table[i]);
entry.TagSignature = table[i].Signature;
profile.Data.Add(entry);
}
}
/// <summary>
/// Creates a new instance of the <see cref="ColorspaceICC"/> class
/// </summary>
/// <param name="profile">The ICC profile of this colorspace</param>
public ColorspaceICC(ICCProfile profile)
: base(new WhitepointD50())//TODO: whitepoint is not always D50 for ICC profile
{
if (profile == null)
{
throw new ArgumentNullException(nameof(profile));
}
_Profile = profile;
}
/// <summary>
/// Compares this profile to another object.
/// <para>Compared values are:</para>
/// <para> - <see cref="Class"/></para>
/// <para> - <see cref="DataColorspace"/></para>
/// <para> - <see cref="PCS"/></para>
/// <para> - <see cref="PCSIlluminant"/></para>
/// <para> - <see cref="Data"/></para>
/// </summary>
/// <param name="obj">The object to compare to</param>
/// <returns>True if the listed values are the same, false otherwise</returns>
public bool Equals(ICCProfile obj)
{
if (obj == null)
{
return(false);
}
if (ReferenceEquals(this, obj))
{
return(true);
}
return(Class == obj.Class && DataColorspace == obj.DataColorspace && PCS == obj.PCS &&
PCSIlluminant == obj.PCSIlluminant && CMP.Compare(Data, obj.Data));
}
private void WriteHeader(ICCDataWriter writer, ICCProfile profile)
{
writer.DataStream.Position = 0;
writer.WriteUInt32(profile.Size);
writer.WriteASCIIString(profile.CMMType, 4);
writer.WriteVersionNumber(profile.Version);
writer.WriteUInt32((uint)profile.Class);
writer.WriteUInt32((uint)profile.DataColorspace);
writer.WriteUInt32((uint)profile.PCS);
writer.WriteDateTime(profile.CreationDate);
writer.WriteASCIIString(profile.FileSignature, 4);
writer.WriteUInt32((uint)profile.PrimaryPlatformSignature);
writer.WriteProfileFlag(profile.Flags);
writer.WriteUInt32(profile.DeviceManufacturer);
writer.WriteUInt32(profile.DeviceModel);
writer.WriteDeviceAttribute(profile.DeviceAttributes);
writer.WriteUInt32((uint)profile.RenderingIntent);
writer.WriteXYZNumber(profile.PCSIlluminant);
writer.WriteASCIIString(profile.CreatorSignature, 4);
}
/// <summary>
/// Writes an <see cref="ICCProfile"/> into a byte array
/// </summary>
/// <param name="profile">the ICC profile to write</param>
/// <returns>the ICC data</returns>
public byte[] WriteProfile(ICCProfile profile)
{
if (profile == null)
{
throw new ArgumentNullException(nameof(profile));
}
using (var stream = new MemoryStream(128))
{
var writer = new ICCDataWriter(stream);
TagTableEntry[] table = WriteTagData(writer, profile);
WriteTagTable(writer, table);
profile.Size = (uint)stream.Length;
WriteHeader(writer, profile);
profile.ID = ICCProfile.CalculateHash(stream.ToArray());
writer.WriteProfileID(profile.ID);
return(stream.ToArray());
}
}
private ICCProfile ReadAll(ICCDataReader reader)
{
var profile = new ICCProfile();
ReadHeader(reader, profile);
var table = ReadTagTable(reader);
ReadTagData(reader, table, profile);
var calcHash = ICCProfile.CalculateHash(reader.Data);
if (!profile.ID.IsSet)
{
profile.ID = calcHash;
}
else if (profile.ID != calcHash)
{
throw new CorruptProfileException("Hash stored in profile does not match");
}
return(profile);
}
private void ReadHeader(ICCDataReader reader, ICCProfile profile)
{
reader.Index = 0;
profile.Size = reader.ReadUInt32();
profile.CMMType = reader.ReadASCIIString(4);
profile.Version = reader.ReadVersionNumber();
profile.Class = (ProfileClassName)reader.ReadUInt32();
profile.DataColorspace = (ColorSpaceType)reader.ReadUInt32();
profile.PCS = (ColorSpaceType)reader.ReadUInt32();
profile.CreationDate = reader.ReadDateTime();
if (reader.ReadASCIIString(4) != "acsp")
{
throw new CorruptProfileException("FileSignature has to be \"acsp\"");
}
profile.PrimaryPlatformSignature = (PrimaryPlatformType)reader.ReadUInt32();
profile.Flags = reader.ReadProfileFlag();
profile.DeviceManufacturer = reader.ReadUInt32();
profile.DeviceModel = reader.ReadUInt32();
profile.DeviceAttributes = reader.ReadDeviceAttribute();
profile.RenderingIntent = (RenderingIntent)reader.ReadUInt32();
profile.PCSIlluminant = reader.ReadXYZNumber();
profile.CreatorSignature = reader.ReadASCIIString(4);
profile.ID = reader.ReadProfileID();
}
/// <summary>
/// Writes an <see cref="ICCProfile"/> into a <see cref="Stream"/>
/// </summary>
/// <param name="profile">the ICC profile to write</param>
/// <param name="stream">the stream to which the ICC data will be written to</param>
public void WriteProfile(ICCProfile profile, Stream stream)
{
var data = WriteProfile(profile);
stream.Write(data, 0, data.Length);
}
/// <summary>
/// Writes an <see cref="ICCProfile"/> into a file
/// </summary>
/// <param name="profile">the ICC profile to write</param>
/// <param name="path">the path to the new ICC file</param>
public void WriteProfile(ICCProfile profile, string path)
{
var data = WriteProfile(profile);
File.WriteAllBytes(path, data);
}
//LTODO: implement ICCValidator (partially see Annex G)
/// <summary>
/// Validates an ICC profile
/// </summary>
/// <param name="profile">The profile to validate</param>
/// <returns>True if valid; false otherwise</returns>
public static bool Validate(ICCProfile profile)
{
throw new NotImplementedException();
}