private void btnLoadFilter_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "Select the Image Filter to load";
ofd.Filter = "Image Filter Files(*.xbmp)|*.xbmp";
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string xmlString = File.ReadAllText(ofd.FileName, Encoding.UTF8);
BitmapFilterData tmpFilter = BitmapFilterData.XmlDeserialize(xmlString);
if (tmpFilter == null)
{
MessageBox.Show("The selected file could not be processed!", "Filter File Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
filterData = tmpFilter;
PopulateControls();
RenderOverlayBitmap();
}
}
public static Bitmap BlendImage(this Bitmap baseImage, Bitmap overlayImage, BitmapFilterData filterData)
{
BitmapData baseImageData = baseImage.LockBits(new Rectangle(0, 0, baseImage.Width, baseImage.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
byte[] baseImageBuffer = new byte[baseImageData.Stride * baseImageData.Height];
Marshal.Copy(baseImageData.Scan0, baseImageBuffer, 0, baseImageBuffer.Length);
BitmapData overlayImageData = overlayImage.LockBits(new Rectangle(0, 0, overlayImage.Width, overlayImage.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
byte[] overlayImageBuffer = new byte[overlayImageData.Stride * overlayImageData.Height];
Marshal.Copy(overlayImageData.Scan0, overlayImageBuffer, 0, overlayImageBuffer.Length);
float sourceBlue = 0;
float sourceGreen = 0;
float sourceRed = 0;
float overlayBlue = 0;
float overlayGreen = 0;
float overlayRed = 0;
for (int k = 0; k < baseImageBuffer.Length && k < overlayImageBuffer.Length; k += 4)
{
sourceBlue = (filterData.SourceBlueEnabled ? baseImageBuffer[k] * filterData.SourceBlueLevel : 0);
sourceGreen = (filterData.SourceGreenEnabled ? baseImageBuffer[k + 1] * filterData.SourceGreenLevel : 0);
sourceRed = (filterData.SourceRedEnabled ? baseImageBuffer[k + 2] * filterData.SourceRedLevel : 0);
overlayBlue = (filterData.OverlayBlueEnabled ? overlayImageBuffer[k] * filterData.OverlayBlueLevel : 0);
overlayGreen = (filterData.OverlayGreenEnabled ? overlayImageBuffer[k + 1] * filterData.OverlayGreenLevel : 0);
overlayRed = (filterData.OverlayRedEnabled ? overlayImageBuffer[k + 2] * filterData.OverlayRedLevel : 0);
baseImageBuffer[k] = CalculateColorComponentBlendValue(sourceBlue, overlayBlue, filterData.BlendTypeBlue);
baseImageBuffer[k + 1] = CalculateColorComponentBlendValue(sourceGreen, overlayGreen, filterData.BlendTypeGreen);
baseImageBuffer[k + 2] = CalculateColorComponentBlendValue(sourceRed, overlayRed, filterData.BlendTypeRed);
}
Bitmap bitmapResult = new Bitmap(baseImage.Width, baseImage.Height, PixelFormat.Format32bppArgb);
BitmapData resultImageData = bitmapResult.LockBits(new Rectangle(0, 0, bitmapResult.Width, bitmapResult.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Marshal.Copy(baseImageBuffer, 0, resultImageData.Scan0, baseImageBuffer.Length);
bitmapResult.UnlockBits(resultImageData);
baseImage.UnlockBits(baseImageData);
overlayImage.UnlockBits(overlayImageData);
return(bitmapResult);
}
private void btnSaveFilter_Click(object sender, EventArgs e)
{
if (filterData == null)
{
return;
}
SaveFileDialog sfd = new SaveFileDialog();
sfd.Title = "Specify a file name and file path";
sfd.Filter = "Image Filter Files(*.xbmp)|*.xbmp";
sfd.AddExtension = true;
if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string xmlString = BitmapFilterData.XmlSerialize(filterData);
File.WriteAllText(sfd.FileName, xmlString, Encoding.UTF8);
}
}
public static BitmapFilterData XmlDeserialize(string xmlString)
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(BitmapFilterData));
MemoryStream memoryStream = new MemoryStream(Encoding.UTF8.GetBytes(xmlString));
XmlReader xmlReader = XmlReader.Create(memoryStream);
BitmapFilterData filterData = null;
if (xmlSerializer.CanDeserialize(xmlReader) == true)
{
xmlReader.Close();
memoryStream.Position = 0;
filterData = (BitmapFilterData)xmlSerializer.Deserialize(memoryStream);
}
memoryStream.Close();
memoryStream.Dispose();
return(filterData);
}
public static string XmlSerialize(BitmapFilterData filterData)
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(BitmapFilterData));
XmlWriterSettings xmlSettings = new XmlWriterSettings();
xmlSettings.Encoding = Encoding.UTF8;
xmlSettings.Indent = true;
MemoryStream memoryStream = new MemoryStream();
XmlWriter xmlWriter = XmlWriter.Create(memoryStream, xmlSettings);
xmlSerializer.Serialize(xmlWriter, filterData);
xmlWriter.Flush();
string xmlString = xmlSettings.Encoding.GetString(memoryStream.ToArray());
xmlWriter.Close();
memoryStream.Close();
memoryStream.Dispose();
return(xmlString);
}
