public static void DrawGeometry(
this IPixelCanvas pc,
int x,
int y,
Geometry geometry,
Brush fillBrush,
Pen pen,
BlendMode blendMode)
{
var size = geometry.GetRenderBounds(pen).Size;
var width = (int)size.Width;
var height = (int)size.Height;
var bmp =
geometry.RenderToBitmap(
size,
new Point(),
size,
fillBrush,
pen,
PixelFormats.Pbgra32);
int[] pixels;
if (blendMode == BlendMode.Copy && width == pc.Width && height == pc.Height)
{
pixels = pc.GetPixels();
bmp.CopyPixels(pixels, pc.Stride, 0);
}
else
{
var pc2 = new PixelArrayCanvas(width, height);
pixels = pc2.GetPixels();
bmp.CopyPixels(pixels, pc2.Stride, 0);
pc.Blit(
new Rectangle(x, y, width, height),
pc2,
new Rectangle(0, 0, width, height),
255, 255, 255, 255, blendMode);
}
}
public static void DrawVisual(this IPixelCanvas pc, int x, int y, ContainerVisual visual, BlendMode blendMode)
{
if (visual.ContentBounds.IsEmpty)
return;
var width = (int)visual.ContentBounds.Width;
var height = (int)visual.ContentBounds.Height;
var bmp = visual.RenderToBitmap(visual.ContentBounds.Size, new Point(0, 0));
if (blendMode == BlendMode.Copy && width == pc.Width && height == pc.Height)
{
var pac = pc as PixelArrayCanvas;
if(pac == null)
{
throw new NotSupportedException("BlendMode.Copy is only supported with PixelArrayCanvas");
}
bmp.CopyPixels(pac.Pixels, pc.Stride, 0);
}
else
{
var sw = Stopwatch.StartNew();
var pc2 = new PixelArrayCanvas(width, height);
bmp.CopyPixels(pc2.Pixels, pc2.Stride, 0);
Debug.WriteLine("Copy Pixels " + sw.GetElapsedAndRestart().TotalMilliseconds);
pc.Blit(
new Rectangle(x, y, width, height),
pc2,
new Rectangle(0, 0, width, height),
255, 255, 255, 255, blendMode);
Debug.WriteLine("Blit " + sw.GetElapsedAndRestart().TotalMilliseconds);
}
}
public static void DrawLine(this IPixelCanvas pc, int x1, int y1, int x2, int y2, System.Windows.Media.Color color, double width)
{
var l = new Shapes.Line();
l.X1 = x1;
l.Y1 = y1;
l.X2 = x2;
l.Y2 = y2;
l.Stroke = new SolidColorBrush(color);
l.StrokeThickness = width;
l.Arrange(pc.Bounds.ToRect());
var sw = Stopwatch.StartNew();
var bitmap_source = l.RenderToBitmap(pc.Bounds.ToSize(), new Point(x1, y1));
var pixels = new int[pc.Length];
bitmap_source.CopyPixels(pixels, pc.Stride, 0);
var pc2 = new PixelArrayCanvas(pc.Width, pc.Height);
pc2.ReplaceFromPixels(pixels, pc.Width, pc.Height);
pc.Blit(pc2, BlendMode.Alpha);
}
