public static bool LessThanOrEqualAll(Float128FastVector x, Float128FastVector y)
{
if (!Vector.EqualsAll(x.Hi, y.Hi))
{
return(Vector.LessThanOrEqualAll(x.Hi, y.Hi));
}
else
{
return(Vector.LessThanOrEqualAll(x.Lo, y.Lo));
}
}
// Render the fractal on a single thread using raw Vector<double> data types
// For a well commented version, go see VectorFloatRenderer.RenderSingleThreadedWithADT in VectorFloat.cs
public override bool RenderSingleThreaded(Float128 xmin, Float128 xmax, Float128 ymin, Float128 ymax, Float128 step, int maxIterations)
{
Vector <double> vmax_iters = new Vector <double>((double)maxIterations);
Float128FastVector vlimit = new Float128FastVector(limit);
Float128FastVector vstep = new Float128FastVector(step);
Float128FastVector vinc = new Float128FastVector(new Float128((double)Vector <double> .Count) * step);
Float128FastVector vxmax = new Float128FastVector(xmax);
Float128FastVector vxmin = Create(i => xmin + step * new Float128((double)i));
Float128 y = ymin;
int yp = 0;
for (Float128FastVector vy = new Float128FastVector(ymin); (y - ymax).Hi < 0 && !Abort; vy += vstep, y += step, yp++)
{
if (Abort)
{
return(false);
}
int xp = 0;
for (Float128FastVector vx = vxmin; Float128FastVector.LessThanOrEqualAll(vx, vxmax); vx += vinc, xp += Vector <double> .Count)
{
Float128FastVector accumx = vx;
Float128FastVector accumy = vy;
Vector <double> viters = Vector <double> .Zero;
Vector <double> increment = Vector <double> .One;
do
{
Float128FastVector naccumx = accumx.Sqr() - accumy.Sqr();
Float128FastVector naccumy = (accumx * accumy).MulPwrOf2(2);
accumx = naccumx + vx;
accumy = naccumy + vy;
viters += increment;
Float128FastVector sqabs = accumx.Sqr() + accumy.Sqr();
Vector <double> vCond = Vector.LessThanOrEqual <double>(sqabs.Hi, vlimit.Hi) &
Vector.LessThanOrEqual <double>(viters, vmax_iters);
increment = increment & vCond;
} while (increment != Vector <double> .Zero);
viters.ForEach((iter, elemNum) => DrawPixel(xp + elemNum, yp, (int)iter));
}
}
return(true);
}
// Render the fractal on multiple threads using raw Vector<double> data types
// For a well commented version, go see VectorFloatRenderer.RenderSingleThreadedWithADT in VectorFloat.cs
public override bool RenderMultiThreaded(Float128 xmin, Float128 xmax, Float128 ymin, Float128 ymax, Float128 step, int maxIterations)
{
Vector <double> vmax_iters = new Vector <double>((double)maxIterations);
Float128FastVector vlimit = new Float128FastVector(limit);
Float128FastVector vstep = new Float128FastVector(step);
Float128FastVector vinc = new Float128FastVector(new Float128((double)Vector <double> .Count) * step);
Float128FastVector vxmax = new Float128FastVector(xmax);
Float128FastVector vxmin = Create(i => xmin + step * new Float128((double)i));
Parallel.For(0, (((ymax - ymin) / step) + HALF).IntValue(), (yp) =>
{
if (Abort)
{
return;
}
Float128FastVector vy = new Float128FastVector(ymin + step * new Float128((double)yp));
int xp = 0;
for (Float128FastVector vx = vxmin; Float128FastVector.LessThanOrEqualAll(vx, vxmax); vx += vinc, xp += Vector <double> .Count)
{
Float128FastVector accumx = vx;
Float128FastVector accumy = vy;
Vector <double> viters = Vector <double> .Zero;
Vector <double> increment = Vector <double> .One;
do
{
Float128FastVector naccumx = accumx.Sqr() - accumy.Sqr();
Float128FastVector naccumy = (accumx * accumy).MulPwrOf2(2);
accumx = naccumx + vx;
accumy = naccumy + vy;
viters += increment;
Float128FastVector sqabs = accumx.Sqr() + accumy.Sqr();
Vector <double> vCond = Vector.LessThanOrEqual <double>(sqabs.Hi, vlimit.Hi) &
Vector.LessThanOrEqual <double>(viters, vmax_iters);
increment = increment & vCond;
} while (increment != Vector <double> .Zero);
viters.ForEach((iter, elemNum) => DrawPixel(xp + elemNum, yp, (int)iter));
}
});
return(!Abort);
}
