public readonly void CopyTo(ref BGR24 pixel, int y)
{
#if NETSTANDARD2_0
pixel.R = GetRed(y);
pixel.G = GetGreen(y);
pixel.B = GetBlue(y);
#else
pixel.R = (Byte)Math.Clamp(y + _V, 0, 255);
pixel.G = (Byte)Math.Clamp(y + _UV, 0, 255);
pixel.B = (Byte)Math.Clamp(y + _U, 0, 255);
#endif
}
public static RGBP128F LerpToRGBP128F(BGR24 left, BGR24 right, float rx)
{
// calculate quantized weights
var wl = (1f - rx) / 255f;
var wr = rx / 255f;
var r = new System.Numerics.Vector4(left.R, left.G, left.B, 255f) * wl;
r += new System.Numerics.Vector4(right.R, right.G, right.B, 255f) * wr;
return(new RGBP128F(r));
}
public void ApplyCompositionTo(ref BGR24 dst)
{
if (this.A == 0)
{
return;
}
var opacity = 16384 * this.A / 255;
var x = 16384 - opacity;
var _R = (dst.R * x + this.R * opacity) / 16384;
var _G = (dst.G * x + this.G * opacity) / 16384;
var _B = (dst.B * x + this.B * opacity) / 16384;
dst = new BGR24(_R, _G, _B);
}
public static RGBP128F LerpToRGBP128F(BGR24 tl, BGR24 tr, BGR24 bl, BGR24 br, float rx, float by)
{
// calculate quantized weights
var lx = 1f - rx;
var ty = 1f - by;
var wwww = new System.Numerics.Vector4(lx * ty, rx * ty, lx * by, rx * by) / 255f;
var r = new System.Numerics.Vector4(tl.R, tl.G, tl.B, 255f) * wwww.X;
r += new System.Numerics.Vector4(tr.R, tr.G, tr.B, 255f) * wwww.Y;
r += new System.Numerics.Vector4(bl.R, bl.G, bl.B, 255f) * wwww.Z;
r += new System.Numerics.Vector4(br.R, br.G, br.B, 255f) * wwww.W;
return(new RGBP128F(r));
}
public Luminance32F(BGR24 color)
{
L = _FromRGB(color.R, color.G, color.B) * Reciprocal255;
}