public static void GetSpriteGlow(Image baseSprite, byte[] bgr, out byte[] pixels, bool forceHollow = false)
{
pixels = ImageUtil.GetPixelData((Bitmap)baseSprite);
if (!forceHollow)
{
ImageUtil.GlowEdges(pixels, bgr, baseSprite.Width);
return;
}
// If the image has any transparency, any derived background will bleed into it.
// Need to undo any transparency values if any present.
// Remove opaque pixels from original image, leaving only the glow effect pixels.
var original = (byte[])pixels.Clone();
ImageUtil.SetAllUsedPixelsOpaque(pixels);
ImageUtil.GlowEdges(pixels, bgr, baseSprite.Width);
ImageUtil.RemovePixels(pixels, original);
}
public static CGearBackground GetCGearBackground(Bitmap img)
{
const int Width = CGearBackground.Width;
const int Height = CGearBackground.Height;
if (img.Width != Width)
{
throw new ArgumentException($"Invalid image width. Expected {Width} pixels wide.");
}
if (img.Height != Height)
{
throw new ArgumentException($"Invalid image height. Expected {Height} pixels high.");
}
// get raw bytes of image
byte[] data = ImageUtil.GetPixelData(img);
const int bpp = 4;
Debug.Assert(data.Length == Width * Height * bpp);
return(CGearBackground.GetBackground(data, bpp));
}
