protected override Document OnLoad(Stream input)
{
byte[] bytes = new byte[input.Length];
input.ProperRead(bytes, 0, (int)input.Length);
Document doc = GetOrientedDocument(bytes, out ExifValueCollection exifMetadata);
byte[] colorProfileBytes = WebPFile.GetColorProfileBytes(bytes);
if (colorProfileBytes != null)
{
#if PDN_3_5_X
System.Drawing.Imaging.PropertyItem colorProfileItem = PaintDotNet.SystemLayer.PdnGraphics.CreatePropertyItem();
colorProfileItem.Id = unchecked ((ushort)ExifTagID.IccProfileData);
colorProfileItem.Type = (short)ExifTagType.Undefined;
colorProfileItem.Len = colorProfileBytes.Length;
colorProfileItem.Value = colorProfileBytes.CloneT();
doc.Metadata.AddExifValues(new System.Drawing.Imaging.PropertyItem[] { colorProfileItem });
#else
doc.Metadata.AddExifPropertyItem(PaintDotNet.Imaging.ExifSection.Image,
unchecked ((ushort)ExifTagID.IccProfileData),
new PaintDotNet.Imaging.ExifValue(PaintDotNet.Imaging.ExifValueType.Undefined,
colorProfileBytes.CloneT()));
#endif
}
if (exifMetadata != null)
{
foreach (MetadataEntry entry in exifMetadata.Distinct())
{
#if PDN_3_5_X
System.Drawing.Imaging.PropertyItem propertyItem = entry.TryCreateGdipPropertyItem();
if (propertyItem != null)
{
doc.Metadata.AddExifValues(new System.Drawing.Imaging.PropertyItem[] { propertyItem });
}
#else
doc.Metadata.AddExifPropertyItem(entry.CreateExifPropertyItem());
#endif
}
}
byte[] xmpBytes = WebPFile.GetXmpBytes(bytes);
if (xmpBytes != null)
{
#if PDN_3_5_X
doc.Metadata.SetUserValue(WebPMetadataNames.XMP, Convert.ToBase64String(xmpBytes, Base64FormattingOptions.None));
#else
PaintDotNet.Imaging.XmpPacket xmpPacket = PaintDotNet.Imaging.XmpPacket.TryParse(xmpBytes);
if (xmpPacket != null)
{
doc.Metadata.SetXmpPacket(xmpPacket);
}
#endif
}
return(doc);
}
private static WebPNative.MetadataParams CreateWebPMetadata(Document doc)
{
byte[] iccProfileBytes = null;
byte[] exifBytes = null;
byte[] xmpBytes = null;
string colorProfile = doc.Metadata.GetUserValue(WebPMetadataNames.ColorProfile);
if (!string.IsNullOrEmpty(colorProfile))
{
iccProfileBytes = Convert.FromBase64String(colorProfile);
}
string exif = doc.Metadata.GetUserValue(WebPMetadataNames.EXIF);
if (!string.IsNullOrEmpty(exif))
{
exifBytes = Convert.FromBase64String(exif);
}
string xmp = doc.Metadata.GetUserValue(WebPMetadataNames.XMP);
if (!string.IsNullOrEmpty(xmp))
{
xmpBytes = Convert.FromBase64String(xmp);
}
if (iccProfileBytes == null || exifBytes == null)
{
Dictionary <MetadataKey, MetadataEntry> propertyItems = GetMetadataFromDocument(doc);
if (propertyItems != null)
{
ExifColorSpace exifColorSpace = ExifColorSpace.Srgb;
if (iccProfileBytes != null)
{
exifColorSpace = ExifColorSpace.Uncalibrated;
}
else
{
MetadataKey iccProfileKey = MetadataKeys.Image.InterColorProfile;
if (propertyItems.TryGetValue(iccProfileKey, out MetadataEntry iccProfileItem))
{
iccProfileBytes = iccProfileItem.GetData();
propertyItems.Remove(iccProfileKey);
exifColorSpace = ExifColorSpace.Uncalibrated;
}
}
if (exifBytes == null)
{
exifBytes = new ExifWriter(doc, propertyItems, exifColorSpace).CreateExifBlob();
}
}
}
#if !PDN_3_5_X
if (xmpBytes == null)
{
PaintDotNet.Imaging.XmpPacket xmpPacket = doc.Metadata.TryGetXmpPacket();
if (xmpPacket != null)
{
string xmpPacketAsString = xmpPacket.ToString();
xmpBytes = System.Text.Encoding.UTF8.GetBytes(xmpPacketAsString);
}
}
#endif
if (iccProfileBytes != null || exifBytes != null || xmpBytes != null)
{
return(new WebPNative.MetadataParams(iccProfileBytes, exifBytes, xmpBytes));
}
return(null);
}