void DrawSquare(FastBitmap source, int x, int y, int width, int height)
{
for (int py = 0; py < height; py++)
{
for (int px = 0; px < width; px++)
{
source.SetPixel(x + px, y + py, Color.Blue);
}
}
}
Bitmap Crop(Bitmap source, Rectangle rectangle)
{
var fastSource = new FastBitmap(source);
var croppedImage = new Bitmap(rectangle.Width, rectangle.Height);
var fastCroppedImage = new FastBitmap(croppedImage);
fastCroppedImage.LockImage();
fastSource.LockImage();
for (int y = rectangle.Y, startY = rectangle.Y, endY = rectangle.Y + rectangle.Height; y < endY; y++)
{
for (int x = rectangle.X, startX = rectangle.X, endX = rectangle.X + rectangle.Width; x < endX; x++)
{
var pixel = fastSource.GetPixel(x, y);
fastCroppedImage.SetPixel(x - startX, y - startY, pixel);
}
}
fastCroppedImage.UnlockImage();
fastSource.UnlockImage();
return(croppedImage);
}