private void TraceCodecInfo(BitmapCodecInfo codec)
{
Console.WriteLine("friendlyname: " + codec.FriendlyName);
Console.WriteLine("extensions: " + codec.FileExtensions);
Console.WriteLine("version: " + codec.Version);
Console.WriteLine("mimes: " + codec.MimeTypes);
Console.WriteLine("author: " + codec.Author);
}
GetEncoder(
BitmapSource bitmapSource
)
{
BitmapEncoder encoder = null;
if (bitmapSource is BitmapFrame)
{
//
// This code gets the encoder based on the decoder that was
// used for this specific BitmapSource.
//
BitmapFrame bitmapImage = bitmapSource as BitmapFrame;
BitmapCodecInfo codecInfo = null;
if (bitmapImage != null && bitmapImage.Decoder != null)
{
codecInfo = bitmapImage.Decoder.CodecInfo;
}
if (codecInfo != null)
{
encoder = BitmapEncoder.Create(codecInfo.ContainerFormat);
// Avoid GIF encoder which does not save transparency well
if (!(encoder is JpegBitmapEncoder ||
encoder is PngBitmapEncoder ||
encoder is TiffBitmapEncoder ||
encoder is WmpBitmapEncoder)
)
{
encoder = null;
}
}
}
//
// The code above assumes that the BitmapSource is actually
// a BitmapImage. If it is not then we assume Png and use
// that encoder.
//
if (encoder == null)
{
if (Microsoft.Internal.AlphaFlattener.Utility.NeedPremultiplyAlpha(bitmapSource))
{
encoder = new WmpBitmapEncoder();
}
else
{
encoder = new PngBitmapEncoder();
}
}
return(encoder);
}
IsSupportedMimeType(
BitmapSource bitmapSource
)
{
BitmapCodecInfo codecInfo = null;
string imageMimeType = "";
if (bitmapSource is BitmapFrame)
{
//
// This code gets the encoder based on the decoder that was
// used for this specific BitmapSource.
//
BitmapFrame bitmapFrame = bitmapSource as BitmapFrame;
if (bitmapFrame != null && bitmapFrame.Decoder != null)
{
codecInfo = bitmapFrame.Decoder.CodecInfo;
}
}
if (codecInfo != null)
{
imageMimeType = codecInfo.MimeTypes;
}
int start = 0;
int comma = imageMimeType.IndexOf(',', start);
bool foundType = false;
//
// Test all strings before commas
//
if (comma != -1)
{
while (comma != -1 && !foundType)
{
string subString = imageMimeType.Substring(start, comma);
foundType = XpsManager.SupportedImageType(new ContentType(subString));
start = comma + 1;
comma = imageMimeType.IndexOf(',', start);
}
}
//
// If we still have not found a supported type
// Test the remainder of the string
//
if (!foundType)
{
foundType = XpsManager.SupportedImageType(new ContentType(imageMimeType.Substring(start)));
}
return(foundType);
}
public static IEnumerable <BitmapCodecInfo> GetSupportedCodecs()
{
foreach (Type type in typeof(BitmapEncoder).Assembly.GetTypes())
{
if (type.IsSubclassOf(typeof(BitmapEncoder)) && !type.IsAbstract && type.IsPublic)
{
if (type.GetConstructor(Type.EmptyTypes) != null)
{
BitmapCodecInfo info = null;
try
{
BitmapEncoder encoder = (BitmapEncoder)Activator.CreateInstance(type);
info = encoder.CodecInfo;
}
catch (NotSupportedException)
{
System.Diagnostics.Debug.Fail("Failed to get codec info for image encoder");
continue;
}
yield return(info);
}
}
}
}
private BitmapEncoder GetBitmapEncoder(string fileExtension)
{
BitmapEncoder bitmapEncoder = null;
if (_bitmapEncoder != null && _bitmapEncoder.CodecInfo != null)
{
string mimeType = string.Empty;
BitmapCodecInfo codecInfo = _bitmapEncoder.CodecInfo;
string mimeTypes = codecInfo.MimeTypes;
string fileExtensions = codecInfo.FileExtensions;
switch (_encoderType)
{
case ImageEncoderType.BmpBitmap:
mimeType = "image/bmp";
break;
case ImageEncoderType.GifBitmap:
mimeType = "image/gif";
break;
case ImageEncoderType.JpegBitmap:
mimeType = "image/jpeg,image/jpe,image/jpg";
break;
case ImageEncoderType.PngBitmap:
mimeType = "image/png";
break;
case ImageEncoderType.TiffBitmap:
mimeType = "image/tiff,image/tif";
break;
case ImageEncoderType.WmpBitmap:
mimeType = "image/vnd.ms-photo";
break;
}
if (!string.IsNullOrWhiteSpace(fileExtensions) &&
fileExtensions.IndexOf(fileExtension, StringComparison.OrdinalIgnoreCase) >= 0)
{
bitmapEncoder = _bitmapEncoder;
}
else if (!string.IsNullOrWhiteSpace(mimeTypes) &&
!string.IsNullOrWhiteSpace(mimeType))
{
string[] arrayMimeTypes = mimeType.Split(',');
for (int i = 0; i < arrayMimeTypes.Length; i++)
{
if (mimeTypes.IndexOf(arrayMimeTypes[i], StringComparison.OrdinalIgnoreCase) >= 0)
{
bitmapEncoder = _bitmapEncoder;
break;
}
}
}
}
if (bitmapEncoder == null)
{
bitmapEncoder = GetBitmapEncoder(_encoderType);
}
return(bitmapEncoder);
}
private BitmapEncoder GetBitmapEncoder(string fileExtension)
{
BitmapEncoder bitmapEncoder = null;
if (_bitmapEncoder != null && _bitmapEncoder.CodecInfo != null)
{
string mimeType = String.Empty;
BitmapCodecInfo codecInfo = _bitmapEncoder.CodecInfo;
string mimeTypes = codecInfo.MimeTypes;
string fileExtensions = codecInfo.FileExtensions;
switch (_encoderType)
{
case ImageEncoderType.BmpBitmap:
mimeType = "image/bmp";
break;
case ImageEncoderType.GifBitmap:
mimeType = "image/gif";
break;
case ImageEncoderType.JpegBitmap:
mimeType = "image/jpeg,image/jpe,image/jpg";
break;
case ImageEncoderType.PngBitmap:
mimeType = "image/png";
break;
case ImageEncoderType.TiffBitmap:
mimeType = "image/tiff,image/tif";
break;
case ImageEncoderType.WmpBitmap:
mimeType = "image/vnd.ms-photo";
break;
}
if (!String.IsNullOrEmpty(fileExtensions) &&
fileExtensions.IndexOf(fileExtension,
StringComparison.OrdinalIgnoreCase) >= 0)
{
bitmapEncoder = _bitmapEncoder;
}
else if (!String.IsNullOrEmpty(mimeTypes) &&
!String.IsNullOrEmpty(mimeType))
{
string[] arrayMimeTypes = mimeType.Split(',');
for (int i = 0; i < arrayMimeTypes.Length; i++)
{
if (mimeTypes.IndexOf(arrayMimeTypes[i],
StringComparison.OrdinalIgnoreCase) >= 0)
{
bitmapEncoder = _bitmapEncoder;
break;
}
}
}
}
if (bitmapEncoder == null)
{
switch (_encoderType)
{
case ImageEncoderType.BmpBitmap:
bitmapEncoder = new BmpBitmapEncoder();
break;
case ImageEncoderType.GifBitmap:
bitmapEncoder = new GifBitmapEncoder();
break;
case ImageEncoderType.JpegBitmap:
JpegBitmapEncoder jpgEncoder = new JpegBitmapEncoder();
// Set the default/user options...
bitmapEncoder = jpgEncoder;
break;
case ImageEncoderType.PngBitmap:
PngBitmapEncoder pngEncoder = new PngBitmapEncoder();
// Set the default/user options...
bitmapEncoder = pngEncoder;
break;
case ImageEncoderType.TiffBitmap:
bitmapEncoder = new TiffBitmapEncoder();
break;
case ImageEncoderType.WmpBitmap:
WmpBitmapEncoder wmpEncoder = new WmpBitmapEncoder();
// Set the default/user options...
bitmapEncoder = wmpEncoder;
break;
}
}
if (bitmapEncoder == null)
{
bitmapEncoder = new PngBitmapEncoder();
}
return(bitmapEncoder);
}
ConvertTo(
ITypeDescriptorContext context,
System.Globalization.CultureInfo culture,
object value,
Type destinationType
)
{
string bitmapName = "bitmap" + m_bitmapId;
BitmapEncoder encoder = null;
m_bitmapId++;
BitmapFrame bmpd = value as BitmapFrame;
if (bmpd != null)
{
BitmapCodecInfo codec = null;
if (bmpd.Decoder != null)
{
codec = bmpd.Decoder.CodecInfo;
}
if (codec != null)
{
encoder = BitmapEncoder.Create(codec.ContainerFormat);
string extension = "";
if (encoder is BmpBitmapEncoder)
{
extension = "bmp";
}
else if (encoder is JpegBitmapEncoder)
{
extension = "jpg";
}
else if (encoder is PngBitmapEncoder)
{
extension = "png";
}
else if (encoder is TiffBitmapEncoder)
{
extension = "tif";
}
else
{
encoder = null;
}
if (encoder != null)
{
bitmapName = bitmapName + '.' + extension;
}
}
}
if (encoder == null)
{
if (Microsoft.Internal.AlphaFlattener.Utility.NeedPremultiplyAlpha(value as BitmapSource))
{
encoder = new WmpBitmapEncoder();
bitmapName = bitmapName + ".wmp";
}
else
{
encoder = new PngBitmapEncoder();
bitmapName = bitmapName + ".png";
}
}
if (value is BitmapFrame)
{
encoder.Frames.Add((BitmapFrame)value);
}
else
{
encoder.Frames.Add(BitmapFrame.Create((BitmapSource)value));
}
int index = m_mainFile.LastIndexOf('.');
if (index < 0)
{
index = m_mainFile.Length;
}
string uri = m_mainFile.Substring(0, index) + "_" + bitmapName;
Stream bitmapStreamDest = new System.IO.FileStream(uri, FileMode.Create, FileAccess.ReadWrite, FileShare.None);
#if DEBUG
Console.WriteLine("Saving " + uri);
#endif
encoder.Save(bitmapStreamDest);
bitmapStreamDest.Close();
return(new Uri(BaseUriHelper.SiteOfOriginBaseUri, uri));
}
public JpegBitmapEncoderFactory(int qualityLevel)
{
_qualityLevel = qualityLevel;
_codecInfo = (new JpegBitmapEncoder()).CodecInfo;
}
