public ScalarLinqRenderer(Action <int, int, int> dp, Func <bool> abortFunc)
: base(dp, abortFunc)
{
Pair[] pairs = Enumerable.Range(0, 312).SelectMany(y => Enumerable.Range(0, 534).Select(x => new Pair {
X = x, Y = y
})).ToArray();
int[] output = Enumerable.Range(0, pairs.Length).ToArray();
this.context = new GpuContext("*");
this._pairs = context.CreateGpuArray(pairs);
this._output = context.CreateGpuArray(output);
parFunc = ParallelExtensions.Compile <float, float, float, int[]>(
(_ymin, _xmin, _step) =>
(from pair in pairs.AsParallelQueryExpr()
let _y = _ymin + _step * pair.Y
let _x = _xmin + _step * pair.X
let c = new MyComplex(_x, _y)
let iters = EnumerableEx.Generate(c, x => x.SquareLength < limit, x => x * x + c, x => x)
.Take(max_iters)
.Count()
select iters).ToArray()
);
seqFunc = Extensions.Compile <float, float, float, int[]>(
(_ymin, _xmin, _step) =>
(from pair in pairs.AsQueryExpr()
let _y = _ymin + _step * pair.Y
let _x = _xmin + _step * pair.X
let c = new MyComplex(_x, _y)
let iters = EnumerableEx.Generate(c, x => x.SquareLength < limit, x => x * x + c, x => x)
.Take(max_iters)
.Count()
select iters).ToArray()
);
gpuKernel =
context.Compile <float, float, float, IGpuArray <int> >(
(_ymin, _xmin, _step) =>
from pair in _pairs.AsGpuQueryExpr()
let _y = _ymin + _step * pair.Y
let _x = _xmin + _step * pair.X
let c = new Complex {
Real = _x, Img = _y
}
let iters = EnumerableEx.Generate(c, x => squareLength.Invoke(x) < limit,
x => add.Invoke(mult.Invoke(x, x), c), x => x)
.Take(max_iters)
.Count()
select iters);
}
public void RenderWithGpuLinq(float xmin, float xmax, float ymin, float ymax, float step)
{
var query =
(from pair in _pairs.AsGpuQueryExpr()
let _y = ymin + step * pair.Y
let _x = xmin + step * pair.X
let c = new Complex {
Real = _x, Img = _y
}
let iters = EnumerableEx.Generate(c, x => squareLength.Invoke(x) < limit,
x => add.Invoke(mult.Invoke(x, x), c), x => x)
.Take(max_iters)
.Count()
select iters);
context.Fill(query, _output);
_output.Refresh();
var array = _output.GetArray();
DrawPixels(array);
}