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());
}
private void WriteTagTable(ICCDataWriter writer, TagTableEntry[] table)
{
//128 = size of ICC header
writer.DataStream.Position = 128;
writer.WriteUInt32((uint)table.Length);
foreach (var entry in table)
{
writer.WriteUInt32((uint)entry.Signature);
writer.WriteUInt32(entry.Offset);
writer.WriteUInt32(entry.DataSize);
}
}
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());
}
}