public static void FitFill <TPixel>(this Image <TPixel> target, ITextureSampler <Vector4> sampler) where TPixel : struct, IPixel <TPixel>
{
var scale = new Vector2(sampler.Scale.Width / (float)target.Width, sampler.Scale.Height / (float)target.Height);
for (int dy = 0; dy < target.Height; ++dy)
{
var tl = default(UV);
var tr = default(UV);
var bl = default(UV);
var br = default(UV);
tl.Y = tr.Y = dy;
bl.Y = br.Y = dy + 1;
var c = default(TPixel);
for (int dx = 0; dx < target.Width; ++dx)
{
tl.X = bl.X = dx;
tr.X = br.X = dx + 1;
var r = sampler.GetAreaSample(tl * scale, tr * scale, br * scale, bl * scale);
c.PackFromVector4(r);
target[dx, dy] = c;
}
}
}
public _PolarTransformedTextureSampler(ITextureSampler <TPixel> source, bool inverse = false) : base(source)
{
_Inverse = inverse;
_Scale = source.Scale;
_Center = _Scale / 2;
_Center = _Center.RoundDown(); // todo: we could "snap" the _Center of the image to an interpixel cross.
}
public CubemapSampler(ITextureSampler <T> f, ITextureSampler <T> b, ITextureSampler <T> l, ITextureSampler <T> r, ITextureSampler <T> top, ITextureSampler <T> bottom)
{
_Front = f;
_Back = b;
_Left = l;
_Right = r;
_Top = top;
_Bottom = bottom;
}
public static ITextureSampler <Vector4> LerpColor(this ITextureSampler <float> source, IPixel odd, IPixel even)
{
return(new _LerpColorSampler(source, odd, even));
}
public static ITextureSampler <HalfSingle> ToHalfSingle(this ITextureSampler <float> source)
{
return(new _FloatToHalfSingleSampler(source));
}
public _FloatToHalfSingleSampler(ITextureSampler <float> source)
{
_Source = source;
}
public _LerpColorSampler(ITextureSampler <float> source, IPixel odd, IPixel even)
{
_Source = source;
_OddColor = odd.ToVector4();
_EvenColor = even.ToVector4();
}
public static ITextureSampler <TPixel> ToPolarTransform <TPixel>(this ITextureSampler <TPixel> ts, bool inverse)
{
return(new _PolarTransformedTextureSampler <TPixel>(ts, inverse));
}
public _TransformedTextureSampler(ITextureSampler <TPixel> source)
{
_Source = source;
}
public TextureSamplingManager(TextureSamplingQuality q)
{
this.Quality = q;
if (q == TextureSamplingQuality.Linear)
{
this.sampler = new LinearTextureSampler();
}
else if (q == TextureSamplingQuality.Nearest)
{
this.sampler = new NearestTextureSampler();
}
}
