private static void TestxyYToXYZ(float xyY_x, float xyY_y, float xyY_Y, float expectedX, float expectedY, float expectedZ)
{
float x, y, z;
CieXYZUtils.xyYToXYZ(xyY_x, xyY_y, xyY_Y, out x, out y, out z);
Assert.That(x, Is.EqualTo(expectedX).Within(Epsilon));
Assert.That(y, Is.EqualTo(expectedY).Within(Epsilon));
Assert.That(z, Is.EqualTo(expectedZ).Within(Epsilon));
}
private static void TestXYZToxyY(float x, float y, float z, float expected_xyY_x, float expected_xyY_y, float expected_xyY_Y)
{
float xyY_x, xyY_y, xyY_Y;
CieXYZUtils.XYZToxyY(x, y, z, out xyY_x, out xyY_y, out xyY_Y);
Assert.That(xyY_x, Is.EqualTo(expected_xyY_x).Within(Epsilon));
Assert.That(xyY_y, Is.EqualTo(expected_xyY_y).Within(Epsilon));
Assert.That(xyY_Y, Is.EqualTo(expected_xyY_Y).Within(Epsilon));
}
private static void TestXYZToCieRGB(float x, float y, float z, float expectedR, float expectedG, float expectedB)
{
float r, g, b;
CieXYZUtils.XYZToCieRGB(x, y, z, out r, out g, out b);
Assert.That(r, Is.EqualTo(expectedR).Within(Epsilon));
Assert.That(g, Is.EqualTo(expectedG).Within(Epsilon));
Assert.That(b, Is.EqualTo(expectedB).Within(Epsilon));
}
private static void TestCieRGBToXYZ(float r, float g, float b, float expectedX, float expectedY, float expectedZ)
{
float x, y, z;
CieXYZUtils.CieRGBToXYZ(r, g, b, out x, out y, out z);
Assert.That(x, Is.EqualTo(expectedX).Within(Epsilon));
Assert.That(y, Is.EqualTo(expectedY).Within(Epsilon));
Assert.That(z, Is.EqualTo(expectedZ).Within(Epsilon));
}
public void XYZToCieRGB_is_inverse_of_CieRGBToXYZ()
{
for (float r = -1; r <= 1; r += Step)
{
for (float g = 0; g <= 1; g += Step)
{
for (float b = 0; b <= 1; b += Step)
{
float x, y, z;
CieXYZUtils.CieRGBToXYZ(r, g, b, out x, out y, out z);
TestXYZToCieRGB(x, y, z, r, g, b);
}
}
}
}
public void xyYToXYZ_is_inverse_of_XYZToxyY()
{
for (float x = 0; x <= 1; x += Step)
{
for (float y = Step; y <= 1; y += Step)
{
for (float z = 0; z <= 1; z += Step)
{
if (x == 0 && y == 0 && z == 0)
{
continue;
}
float xyY_x, xyY_y, xyY_Y;
CieXYZUtils.XYZToxyY(x, y, z, out xyY_x, out xyY_y, out xyY_Y);
TestxyYToXYZ(xyY_x, xyY_y, xyY_Y, x, y, z);
}
}
}
}