public unsafe bool IsBackgroundPixel(int val, int axis, bool horizontal)
{
var i = IndexOf(val, axis, horizontal);
if (i == -1)
{
return(true);
}
var x = horizontal ? val : axis;
var y = horizontal ? axis : val;
bool yes = false;
int *src = (int *)Pixels;
if (BackgroundPen != null)
{
IBufferPen pen = Factory.Get <IBufferPen>(BackgroundPen, ObjType.Buffer);
if (pen == null)
{
return(false);
}
yes = src[i] == pen.ReadPixel(val, axis, horizontal);
}
else
{
yes = src[i] == 0;
}
return(yes);
}
static unsafe void Scan(IScanner src, int y, int w, int* bkg, IBufferPen pen, int dy, int blen, ref int srcX, ref int srcY, ref int maxX, ref int maxY)
{
for (int x = 0; x <= w; x++)
{
var i = x + dy;
if (i > blen)
break;
if (bkg[i] == Geometry.TransparentColor ||
bkg[i] == pen.ReadPixel(x, y, true))
continue;
Add(src, x, y, bkg[i].Alpha(), ref srcX, ref srcY, ref maxX, ref maxY);
}
}
public void DrawTo(IBuffer Writer, IBufferPen reader)
{
Writer.WritePixel(X, Y, true, reader.ReadPixel((int)X, (int)Y, true), Implementation.Renderer.AntiAlised);
}