protected void RegisterDynamicImage(ref Stream dynamicImageStream, ref string streamName, string extension, string mimeType, PageContext pageContext, out System.Drawing.Rectangle offsets)
{
offsets = System.Drawing.Rectangle.Empty;
if (dynamicImageStream != null && dynamicImageStream.Length != 0)
{
if (pageContext.ImageConsolidation != null)
{
ImageConsolidation imageConsolidation = pageContext.ImageConsolidation;
offsets = imageConsolidation.AppendImage(dynamicImageStream);
if (offsets != System.Drawing.Rectangle.Empty)
{
dynamicImageStream = null;
streamName = imageConsolidation.GetStreamName();
}
}
else if (!pageContext.RegisteredStreamNames.Contains(streamName))
{
pageContext.RegisteredStreamNames.Add(streamName, null);
Stream stream = pageContext.CreateAndRegisterStream(streamName, extension, null, mimeType, false, StreamOper.CreateAndRegister);
if (stream != null)
{
dynamicImageStream.Position = 0L;
int num = (int)dynamicImageStream.Length;
byte[] array = new byte[4096];
while (num > 0)
{
int num2 = dynamicImageStream.Read(array, 0, Math.Min(array.Length, num));
stream.Write(array, 0, num2);
num -= num2;
}
dynamicImageStream = null;
}
}
}
}