public static byte[] CompressImageByData(byte[] data, long maxLength, string sourceUrl)
{
System.Drawing.Image image = null;
string value = string.Empty;
if (!string.IsNullOrEmpty(sourceUrl) && sourceUrl.LastIndexOf(".") > 0)
{
value = sourceUrl.Substring(sourceUrl.LastIndexOf("."));
}
if (string.IsNullOrEmpty(value))
{
value = ".jpeg";
}
System.Drawing.Imaging.ImageFormat formatByExtension = ImageCompress.GetFormatByExtension(ref value);
bool flag = false;
do
{
try
{
using (MemoryStream memoryStream = new MemoryStream(data))
{
image = System.Drawing.Image.FromStream(memoryStream);
if (image == null)
{
break;
}
double towidth;
double toheight;
if (!flag)
{
towidth = (double)image.Width;
toheight = (double)image.Height;
}
else
{
if (image.Width > 800)
{
towidth = 800.0;
toheight = (double)image.Height * 800.0 / (double)image.Width;
}
else
{
towidth = (double)image.Width * 0.9;
toheight = (double)image.Height * 0.9;
}
}
data = ImageCompress.MakeThumbnail(image, string.Empty, towidth, toheight, formatByExtension);
flag = true;
}
}
catch (Exception ex)
{
Log.WriteLog(ex);
image.Dispose();
break;
}
finally
{
if (image != null)
{
image.Dispose();
}
}
}while ((long)data.Length >= maxLength);
return(data);
}
public static byte[] CompressImage(string sourceFileFullName, long maxLength, out bool hasCompress)
{
hasCompress = false;
byte[] array = ImageCompress.GetImageToByteArrayByFile(sourceFileFullName);
if (array == null || (long)array.Length <= maxLength)
{
return(array);
}
System.Drawing.Image image = null;
string text = string.Empty;
if (!string.IsNullOrEmpty(sourceFileFullName) && sourceFileFullName.LastIndexOf(".") > 0)
{
text = sourceFileFullName.Substring(sourceFileFullName.LastIndexOf("."));
}
if (string.IsNullOrEmpty(text))
{
text = ".jpeg";
}
FileInfo fileInfo = new FileInfo(sourceFileFullName);
string text2 = fileInfo.DirectoryName;
if (!text2.EndsWith("\\"))
{
text2 += "\\";
}
if (!Directory.Exists(text2))
{
Directory.CreateDirectory(text2);
}
System.Drawing.Imaging.ImageFormat formatByExtension = ImageCompress.GetFormatByExtension(ref text);
string text3 = string.Concat(new object[]
{
text2,
"Compress",
DateTime.Now.Ticks,
text
});
while (File.Exists(text3))
{
text3 = string.Concat(new object[]
{
text2,
"Compress",
DateTime.Now.Ticks,
text
});
}
bool flag = false;
do
{
try
{
using (MemoryStream memoryStream = new MemoryStream(array))
{
image = System.Drawing.Image.FromStream(memoryStream);
if (image == null)
{
break;
}
double towidth;
double toheight;
if (!flag)
{
towidth = (double)image.Width;
toheight = (double)image.Height;
}
else
{
if (image.Width > 800)
{
towidth = 800.0;
toheight = (double)image.Height * 800.0 / (double)image.Width;
}
else
{
towidth = (double)image.Width * 0.9;
toheight = (double)image.Height * 0.9;
}
}
array = ImageCompress.MakeThumbnail(image, text3, towidth, toheight, formatByExtension);
flag = true;
}
}
catch (Exception ex)
{
Log.WriteLog(ex);
image.Dispose();
break;
}
finally
{
if (image != null)
{
image.Dispose();
}
}
}while ((long)array.Length >= maxLength);
hasCompress = true;
return(array);
}
