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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows.Media.Imaging;
public static class BitmapSourceExtensions
{
/// <summary>
/// Converts the bitmap source to GDI+ bitmap.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <returns></returns>
public static System.Drawing.Bitmap ToGDIBitmap(this BitmapSource bitmapsource)
{
if (bitmapsource != null)
{
using (MemoryStream stream = new MemoryStream())
{
BitmapEncoder enc = new BmpBitmapEncoder();
enc.Frames.Add(BitmapFrame.Create(bitmapsource));
enc.Save(stream);
using (var tempBitmap = new System.Drawing.Bitmap(stream))
{
// According to MSDN, one "must keep the stream open for the lifetime of the Bitmap."
// So we return a copy of the new bitmap, allowing us to dispose both the bitmap and the stream.
return new System.Drawing.Bitmap(tempBitmap);
}
}
}
else
{
return new System.Drawing.Bitmap(1, 1);
}
}
/// <summary>
/// Save to the BMP file.
/// </summary>
/// <param name="bitmapSource">The bitmap source.</param>
/// <param name="fileName">Name of the file.</param>
public static void SaveBmpFile(this BitmapSource bitmapSource, String fileName)
{
using (FileStream fs = new FileStream(fileName, FileMode.Create))
{
BitmapEncoder enc = new BmpBitmapEncoder();
enc.Frames.Add(BitmapFrame.Create(bitmapSource));
enc.Save(fs);
}
}
/// <summary>
/// Save to the PNG file.
/// </summary>
/// <param name="bitmapSource">The bitmap source.</param>
/// <param name="fileName">Name of the file.</param>
public static void SavePngFile(this BitmapSource bitmapSource, String fileName)
{
using (FileStream fs = new FileStream(fileName, FileMode.Create))
{
PngBitmapEncoder enc = new PngBitmapEncoder();
enc.Frames.Add(BitmapFrame.Create(bitmapSource));
enc.Save(fs);
}
}
/// <summary>
/// Save to the JPEG file.
/// </summary>
/// <param name="bitmapSource">The bitmap source.</param>
/// <param name="fileName">Name of the file.</param>
/// <param name="quality">The quality.</param>
public static void SaveJpegFile(this BitmapSource bitmapSource, String fileName, int quality = 100)
{
using (FileStream fs = new FileStream(fileName, FileMode.Create))
{
JpegBitmapEncoder enc = new JpegBitmapEncoder();
enc.QualityLevel = quality;
enc.Frames.Add(BitmapFrame.Create(bitmapSource));
enc.Save(fs);
}
}
/// <summary>
/// Converts the bitmap source to bitmap image.
/// </summary>
/// <param name="bitmapSource">The bitmap source.</param>
/// <returns></returns>
public static BitmapImage ConvertToBitmapImage(this BitmapSource bitmapSource)
{
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
MemoryStream memoryStream = new MemoryStream();
BitmapImage bImg = new BitmapImage();
encoder.Frames.Add(BitmapFrame.Create(bitmapSource));
encoder.Save(memoryStream);
bImg.BeginInit();
bImg.StreamSource = new MemoryStream(memoryStream.ToArray());
bImg.EndInit();
memoryStream.Close();
return bImg;
}
/// <summary>
/// Converts the Bitmap Source to Writeable Bitmap.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <returns></returns>
public static WriteableBitmap ToWritableBitmap(this BitmapSource bitmapsource)
{
WriteableBitmap w = new WriteableBitmap(bitmapsource);
return w;
}
/// <summary>
/// Converts the BitmapSource to byte array.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <param name="format">The pixel format.</param>
/// <returns></returns>
public static byte[] ToBytes(this BitmapSource bitmapsource, PixelFormat format)
{
var bm = new FormatConvertedBitmap(bitmapsource, format, null, 0);
BitmapEncoder encoder = new BmpBitmapEncoder();
byte[] bytes = null;
using (MemoryStream stream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(bm));
encoder.Save(stream);
bytes = stream.ToArray();
stream.Close();
}
return bytes;
}
/// <summary>
/// Converts the Bitmap Source to JPEG byte array.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <param name="quality">Compression quality.</param>
/// <returns></returns>
public static byte[] ToJpegBytes(this BitmapSource bitmapsource, int quality = 100)
{
var bm = new FormatConvertedBitmap(bitmapsource, PixelFormats.Bgr24, null, 0);
JpegBitmapEncoder encoder = new JpegBitmapEncoder();
encoder.QualityLevel = quality;
byte[] bytes = null;
using (MemoryStream stream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(bm));
encoder.Save(stream);
bytes = stream.ToArray();
stream.Close();
}
return bytes;
}
/// <summary>
/// Converts the BitmapSource to PNG byte array.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <returns></returns>
public static byte[] ToPngBytes(this BitmapSource bitmapsource)
{
PngBitmapEncoder encoder = new PngBitmapEncoder();
byte[] bytes = null;
using (MemoryStream stream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(bitmapsource));
encoder.Save(stream);
bytes = stream.ToArray();
stream.Close();
}
return bytes;
}
/// <summary>
/// Converts the BitmapSource to BMP byte array.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <returns></returns>
public static byte[] ToBmpBytes(this BitmapSource bitmapsource)
{
BmpBitmapEncoder encoder = new BmpBitmapEncoder();
byte[] bytes = null;
using (MemoryStream stream = new MemoryStream())
{
encoder.Frames.Add(BitmapFrame.Create(bitmapsource));
encoder.Save(stream);
bytes = stream.ToArray();
stream.Close();
}
return bytes;
}
/// <summary>
/// Converts the byte array to a Bitmap Source.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <returns></returns>
public static BitmapSource ToBitmapSource(this byte[] bytes)
{
var image = new BitmapImage();
using (var mem = new MemoryStream(bytes))
{
mem.Position = 0;
image.BeginInit();
image.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
image.CacheOption = BitmapCacheOption.OnLoad;
image.UriSource = null;
image.StreamSource = mem;
image.EndInit();
}
image.Freeze();
return image;
}
/// <summary>
/// Converts the bitmap source format.
/// </summary>
/// <param name="bitmapsource">The bitmap source.</param>
/// <param name="format">The format.</param>
/// <returns></returns>
public static BitmapSource ConvertFormat(this BitmapSource bitmapsource, PixelFormat format)
{
var bm = new FormatConvertedBitmap(bitmapsource, format, null, 0);
return bm;
}
/// <summary>
/// Converts this GDI bitmap to WPF BitmapSource.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
/// <returns></returns>
public static BitmapSource ToBitmapSource(this System.Drawing.Bitmap bitmap)
{
var bitmapData = bitmap.LockBits(
new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
var bitmapSource = BitmapSource.Create(
bitmapData.Width, bitmapData.Height, 96, 96, System.Windows.Media.PixelFormats.Bgra32, null,
bitmapData.Scan0, bitmapData.Stride * bitmapData.Height, bitmapData.Stride);
bitmap.UnlockBits(bitmapData);
bitmapSource.Freeze();
return bitmapSource;
}
}
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