private static void DeserializePixelData(Data data, SKPixmap pixmap)
{
var pixels = pixmap.GetPixelSpan <SKColor>();
var height = pixmap.Height;
var width = pixmap.Width;
var comp = data.Components;
var colors = data.Colors;
var cosinesX = ArrayPool <double> .Shared.Rent(width *comp.X);
var cosinesY = ArrayPool <double> .Shared.Rent(height *comp.Y);
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
var r = 0.0;
var g = 0.0;
var b = 0.0;
for (var j = 0; j < comp.Y; j++)
{
for (var i = 0; i < comp.X; i++)
{
var cosX = GetCos(cosinesX, i, comp.X, x, width);
var cosY = GetCos(cosinesY, j, comp.Y, y, height);
var basis = cosX * cosY;
var color = colors[j * comp.X + i];
r += color.R * basis;
g += color.G * basis;
b += color.B * basis;
}
}
pixels[y * width + x] = new SKColor(
(byte)LinearToSrgb(r),
(byte)LinearToSrgb(g),
(byte)LinearToSrgb(b));
}
}
ArrayPool <double> .Shared.Return(cosinesX);
ArrayPool <double> .Shared.Return(cosinesY);
