public ImageGraphics2D(ActualImage destImage)
{
//create from actual image
this.destImage = destImage;
this.destActualImage = destImage;
this.destImageReaderWriter = new MyImageReaderWriter();
destImageReaderWriter.ReloadImage(destImage);
this.sclineRas = new ScanlineRasterizer();
this.sclineRasToBmp = new ScanlineRasToDestBitmapRenderer();
this.destWidth = destImage.Width;
this.destHeight = destImage.Height;
this.clipBox = new RectInt(0, 0, destImage.Width, destImage.Height);
this.sclineRas.SetClipBox(this.clipBox);
this.sclinePack8 = new ScanlinePacked8();
this.currentBlender = this.pixBlenderRGBA32 = new PixelBlenderBGRA();
}
public void ReloadImage(ActualImage actualImage)
{
if (this.actualImage == actualImage)
{
return;
}
this.actualImage = actualImage;
//calculate image stride
switch (actualImage.PixelFormat)
{
case PixelFormat.ARGB32:
{
Attach(actualImage.Width,
actualImage.Height,
actualImage.BitDepth,
ActualImage.GetBuffer(actualImage),
pixelBlenderRGBA ?? (pixelBlenderRGBA = new PixelBlenderBGRA()));
}
break;
case PixelFormat.GrayScale8:
{
Attach(actualImage.Width,
actualImage.Height,
actualImage.BitDepth,
ActualImage.GetBuffer(actualImage),
pixelBlenderGray ?? (pixelBlenderGray = new PixelBlenderGray(1)));
}
break;
case PixelFormat.RGB24:
default:
{
throw new NotSupportedException();
}
}
}
