/// <inheritdoc/>
public System.IO.Stream CombineImages(System.IO.Stream sourceImageStream, System.IO.Stream detailImageStream, Rect detailImageRect, double angle = 0)
{
#region validation
if (sourceImageStream == null)
{
throw new ArgumentNullException(nameof(sourceImageStream));
}
if (detailImageStream == null)
{
throw new ArgumentNullException(nameof(detailImageStream));
}
#endregion
using Image <Rgba32> sourceImage = LoadImageFromStream <Rgba32>(sourceImageStream, out IImageFormat imageFormat);
using Image <Rgba32> detailImage = LoadImageFromStream <Rgba32>(angle != 0 ? RotateImage(detailImageStream, angle) : detailImageStream, out IImageFormat detailImageFormat);
var detailImagePosition = new SixLabors.ImageSharp.Point(0, 0);
if (detailImageRect != null)
{
Size detailImageSize = new Size(detailImageRect.Width, detailImageRect.Height);
detailImage.Mutate(x => x.Resize(detailImageSize));
detailImagePosition = new SixLabors.ImageSharp.Point(detailImageRect.X, detailImageRect.Y);
}
sourceImage.Mutate(x => x.DrawImage(detailImage, detailImagePosition, 1.0f));
return(SaveAsStream(sourceImage, imageFormat));
}
private Image <Rgba32> generatePicture(Direction direction, Image <Rgba32> currentImage, Image <Rgba32> nextImage)
{
int height = LEDPIProcessorBase.LEDHeight;
int width = LEDPIProcessorBase.LEDWidth;
SixLabors.ImageSharp.Point pointCurrentImage;
SixLabors.ImageSharp.Point pointNextImage;
if (direction == Direction.Down || direction == Direction.Up)
{
if (direction == Direction.Down)
{
pointCurrentImage = new SixLabors.ImageSharp.Point(0, 0);
pointNextImage = new SixLabors.ImageSharp.Point(0, LEDPIProcessorBase.LEDHeight);
}
else
{
pointNextImage = new SixLabors.ImageSharp.Point(0, 0);
pointCurrentImage = new SixLabors.ImageSharp.Point(0, LEDPIProcessorBase.LEDHeight);
}
height *= 2;
}
else
{
if (direction == Direction.Left)
{
pointCurrentImage = new SixLabors.ImageSharp.Point(0, 0);
pointNextImage = new SixLabors.ImageSharp.Point(LEDPIProcessorBase.LEDWidth, 0);
}
else
{
pointNextImage = new SixLabors.ImageSharp.Point(0, 0);
pointCurrentImage = new SixLabors.ImageSharp.Point(LEDPIProcessorBase.LEDWidth, 0);
}
width *= 2;
}
Image <Rgba32> wholeImage = new Image <Rgba32>(width, height);
wholeImage.Mutate(c => c.DrawImage(currentImage, pointCurrentImage, 1).DrawImage(nextImage, pointNextImage, 1));
return(wholeImage);
}