public void ConductScalingTest()
{
Bitmap area = new Bitmap("test.jpg");
int factor = 2;
// Scale with GDI+
DateTime start = DateTime.Now;
Bitmap areascaled = new Bitmap(area.Width / factor, area.Height / factor);
Graphics g = Graphics.FromImage(areascaled);
g.ScaleTransform(1.0f / (float)factor, 1.0f / (float)factor);
g.DrawImage(area, 0, 0, area.Width, area.Height);
TimeSpan duration = DateTime.Now - start;
Console.WriteLine("GDI Scaling completed in " + duration.TotalMilliseconds + "ms");
areascaled.Save("gdi-scale-test" + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
start = DateTime.Now;
ColorImage areaCI = new ColorImage(new UnsafeBitmap(area));
ColorImage widthScaled = ColorImage.ScaleWidth(areaCI, area.Width / factor);
ColorImage fullyScaled = ColorImage.ScaleHeight(widthScaled, area.Height / factor);
duration = DateTime.Now - start;
Console.WriteLine("ColorImage Scaling completed in " + duration.TotalMilliseconds + "ms");
fullyScaled.GenerateBitmap().Save("colorimage-scale-test.jpg" + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
public Bitmap Render(ArrayList strokes, Bitmap paintingBitmap)
{
ColorImage strokeImage = new ColorImage(new UnsafeBitmap(strokeBitmap));
int strokeCount = 0;
Graphics gr = Graphics.FromImage(paintingBitmap);
gr.Clear(System.Drawing.Color.White);
ColorImage painting = new ColorImage(new UnsafeBitmap(paintingBitmap));
double OneEightyOverPi = 180.0f / System.Math.PI;
Hashtable scaledStrokeHash = new Hashtable();
Hashtable scaledWidthHash = new Hashtable();
TimeSpan durationGDI = TimeSpan.Zero;
TimeSpan durationBlending = TimeSpan.Zero;
TimeSpan durationScaling = TimeSpan.Zero;
DateTime start = DateTime.Now;
foreach (Stroke stroke in strokes)
{
double radians = stroke.theta * -1.0;
//int max = System.Math.Max((int)stroke.l, (int)stroke.w);
if ((float.IsNaN(stroke.l)) || (float.IsNaN(stroke.w)))
{
continue;
}
int scaledWidth = (int)stroke.l;
int scaledHeight = (int)stroke.w;
if ((scaledWidth == 0) || (scaledHeight == 0))
{
continue;
}
DateTime startScaling = DateTime.Now;
Point p = new Point(scaledWidth, scaledHeight);
Bitmap newStrokeBmp = null;
if (scaledStrokeHash.ContainsKey(p))
{
newStrokeBmp = (Bitmap)scaledStrokeHash[p];
}
else
{
ColorImage temp1;
if (scaledWidthHash.ContainsKey(scaledWidth))
{
temp1 = (ColorImage)scaledWidthHash[scaledWidth];
}
else
{
temp1 = ColorImage.ScaleWidth(strokeImage, scaledWidth);
scaledWidthHash[scaledWidth] = temp1;
}
temp1 = ColorImage.ScaleWidth(strokeImage, scaledWidth);
ColorImage scaledImage = ColorImage.ScaleHeight(temp1, scaledHeight);
newStrokeBmp = scaledImage.GenerateBitmap();
scaledStrokeHash[p] = newStrokeBmp;
}
durationScaling += DateTime.Now - startScaling;
DateTime startGDI = DateTime.Now;
Bitmap sbmp = new Bitmap(newStrokeBmp.Width, newStrokeBmp.Height);
Graphics g = Graphics.FromImage(sbmp);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;// HighQualityBicubic;
g.TranslateTransform(-newStrokeBmp.Width / 2, -newStrokeBmp.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Append);
g.RotateTransform((float)(radians * OneEightyOverPi), System.Drawing.Drawing2D.MatrixOrder.Append);
g.TranslateTransform(newStrokeBmp.Width / 2, newStrokeBmp.Height / 2, System.Drawing.Drawing2D.MatrixOrder.Append);
g.DrawImage(newStrokeBmp, 0, 0, newStrokeBmp.Width, newStrokeBmp.Height);
//sbmp.Save("newstroke" + stroke.theta.ToString() + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
sbmp.RotateFlip(System.Drawing.RotateFlipType.RotateNoneFlipY);
Color c = Color.FromArgb(stroke.red, stroke.green, stroke.blue);
durationGDI += DateTime.Now - startGDI;
DateTime startBlending = DateTime.Now;
ColorImage.Blend(ref painting, new ColorImage(new UnsafeBitmap(sbmp)), c, stroke.xc, stroke.yc);
durationBlending += DateTime.Now - startBlending;
//painting.GenerateBitmap().Save("intermediate-" + strokeCount + "n.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
strokeCount++;
//StatusReporter.Instance.SetPercentComplete((int)(((float)strokeCount / (float)(strokes.Count)) * 100.0));
}
/*
* foreach (Point p in h.Keys)
* {
* Console.WriteLine("Stroke size (" + p.X + "," + p.Y + ") = " + (int)h[p]);
* }
*/
TimeSpan duration = DateTime.Now - start;
StatusManager.Instance.StatusMessage("Total GDI duration: " + durationGDI.TotalMilliseconds + "ms");
StatusManager.Instance.StatusMessage("Total Scaling duration: " + durationScaling.TotalMilliseconds + "ms");
StatusManager.Instance.StatusMessage("Total Blending duration: " + durationBlending.TotalMilliseconds + "ms");
StatusManager.Instance.StatusMessage("Rendering duration: " + duration.TotalMilliseconds + "ms");
//bmp.Save("newpainting.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
return(painting.GenerateBitmap());;
}