internal static void SaveImage(Image image, Stream stream, ImageFormat imageFormat, int jpegQuality)
{
SharedUtil.ThrowIfEmpty(image, "image");
SharedUtil.ThrowIfEmpty(stream, "stream");
SharedUtil.ThrowIfEmpty(imageFormat, "imageFormat");
if (imageFormat == ImageFormat.Jpeg)
{
using (EncoderParameters parameters = new EncoderParameters(1))
{
using (EncoderParameter parameter = new EncoderParameter(Encoder.Quality, (long)jpegQuality))
{
parameters.Param[0] = parameter;
image.Save(stream, JpegCodec, parameters);
stream.Flush();
}
return;
}
}
using (MemoryStream stream2 = new MemoryStream())
{
image.Save(stream2, imageFormat);
stream2.Seek(0L, SeekOrigin.Begin);
stream2.WriteTo(stream);
stream.Flush();
stream2.Flush();
}
}
internal DisplayNameAttribute(Type type, string memberName)
{
this.type = type;
if (this.type == null)
{
throw new ArgumentNullException("type");
}
SharedUtil.ThrowIfEmpty(this.memberName = memberName, "memberName");
}
internal static bool CopyStream(Stream source, Stream target, int bufferSize, long sourceSeekOffset, SeekOrigin sourceSeekOrigin, long targetSetLength, long targetSeekOffset, SeekOrigin targetSeekOrigin, Operation <int, bool> shouldCancel)
{
SharedUtil.ThrowIfEmpty(source, "source");
SharedUtil.ThrowIfEmpty(target, "target");
if (!source.CanRead || !target.CanWrite)
{
throw new IOException();
}
byte[] buffer = new byte[bufferSize = (bufferSize <= 0) ? 0x1000 : bufferSize];
if (((sourceSeekOffset > 0L) || ((sourceSeekOffset == 0L) && (sourceSeekOrigin != SeekOrigin.Current))) && source.CanSeek)
{
source.Seek(sourceSeekOffset, sourceSeekOrigin);
}
if (target.CanSeek)
{
if (targetSetLength > 0L)
{
target.SetLength(targetSetLength);
}
target.Seek(targetSeekOffset, targetSeekOrigin);
}
while (source.Position < source.Length)
{
long num;
if ((num = source.Length - source.Position) < bufferSize)
{
bufferSize = (int)num;
buffer = new byte[bufferSize];
}
source.Read(buffer, 0, bufferSize);
target.Write(buffer, 0, bufferSize);
target.Flush();
if ((shouldCancel != null) && shouldCancel(SharedUtil.Percent(source.Position, source.Length)))
{
return(false);
}
}
return(true);
}
internal static bool CopyStream(Stream source, Stream target, Operation <int, bool> shouldCancel)
{
SharedUtil.ThrowIfEmpty(source, "source");
return(CopyStream(source, target, 0, 0L, SeekOrigin.Current, source.Length, 0L, SeekOrigin.Begin, shouldCancel));
}