public void XyzIndexerWorks()
{
var values = new float[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
var csxyz = new SKColorSpaceXyz(values);
var counter = 0f;
for (var y = 0; y < 3; y++)
{
for (var x = 0; x < 3; x++)
{
Assert.Equal(++counter, csxyz[x, y]);
}
}
}
public void XyzCanInvert()
{
var values = new float[] {
1, 2, 3,
0, 1, 4,
5, 6, 1,
};
var invertedValues = new float[] {
-11.5f, 8, 2.5f,
10, -7, -2,
-2.5f, 2, 0.5f,
};
var csxyz = new SKColorSpaceXyz(values);
var inverted = csxyz.Invert();
Assert.Equal(invertedValues, inverted.Values);
}
public void XyzToMatrix44IsCorrect()
{
var values44 = new float[] {
1, 2, 3, 0,
4, 5, 6, 0,
7, 8, 9, 0,
0, 0, 0, 1
};
var values = new float[] {
1, 2, 3,
4, 5, 6,
7, 8, 9
};
var csxyz = new SKColorSpaceXyz(values);
var matrix44 = csxyz.ToMatrix44();
Assert.Equal(values44, matrix44.ToRowMajor());
}
public void XyzCanInverts()
{
var values = new[]
{
0.60974f, 0.20528f, 0.14919f,
0.31111f, 0.62567f, 0.06322f,
0.01947f, 0.06087f, 0.74457f,
};
var invertedValues = new[]
{
1.96253f, -0.61068f, -0.34137f,
-0.97876f, 1.91615f, 0.03342f,
0.02869f, -0.14067f, 1.34926f,
};
var csxyz = new SKColorSpaceXyz(values);
var inverted = csxyz.Invert();
AssertSimilar(invertedValues, inverted.Values);
}
public void XyzCanConcat()
{
var expected = new SKColorSpaceXyz(new float[] {
1, 16, 0,
0, 18, 0,
0, 0, 1
});
var a = new SKColorSpaceXyz(new float[] {
1, 2, 0,
0, 3, 0,
0, 0, 1
});
var b = new SKColorSpaceXyz(new float[] {
1, 4, 0,
0, 6, 0,
0, 0, 1
});
var concat = SKColorSpaceXyz.Concat(a, b);
Assert.Equal(expected, concat);
}