public void NormalizedByte4()
{
// Test PackedValue
Assert.Equal((uint)0x0, new NormalizedByte4(Vector4.Zero).PackedValue);
Assert.Equal((uint)0x7F7F7F7F, new NormalizedByte4(Vector4.One).PackedValue);
Assert.Equal(0x81818181, new NormalizedByte4(-Vector4.One).PackedValue);
// Test ToVector4
Assert.True(Equal(Vector4.One, new NormalizedByte4(Vector4.One).ToVector4()));
Assert.True(Equal(Vector4.Zero, new NormalizedByte4(Vector4.Zero).ToVector4()));
Assert.True(Equal(-Vector4.One, new NormalizedByte4(-Vector4.One).ToVector4()));
Assert.True(Equal(Vector4.One, new NormalizedByte4(Vector4.One * 1234.0f).ToVector4()));
Assert.True(Equal(-Vector4.One, new NormalizedByte4(Vector4.One * -1234.0f).ToVector4()));
// Test Ordering
float x = 0.1f;
float y = -0.3f;
float z = 0.5f;
float w = -0.7f;
Assert.Equal(0xA740DA0D, new NormalizedByte4(x, y, z, w).PackedValue);
NormalizedByte4 n = new NormalizedByte4();
n.PackFromBytes(141, 90, 192, 39);
Assert.Equal(0xA740DA0D, n.PackedValue);
Assert.Equal((uint)958796544, new NormalizedByte4(0.0008f, 0.15f, 0.30f, 0.45f).PackedValue);
byte[] rgb = new byte[3];
byte[] rgba = new byte[4];
byte[] bgr = new byte[3];
byte[] bgra = new byte[4];
new NormalizedByte4(x, y, z, w).ToXyzBytes(rgb, 0);
Assert.Equal(rgb, new byte[] { 141, 90, 192 });
new NormalizedByte4(x, y, z, w).ToXyzwBytes(rgba, 0);
Assert.Equal(rgba, new byte[] { 141, 90, 192, 39 });
new NormalizedByte4(x, y, z, w).ToZyxBytes(bgr, 0);
Assert.Equal(bgr, new byte[] { 192, 90, 141 });
new NormalizedByte4(x, y, z, w).ToZyxwBytes(bgra, 0);
Assert.Equal(bgra, new byte[] { 192, 90, 141, 39 });
// http://community.monogame.net/t/normalizedbyte4-texture2d-gives-different-results-from-xna/8012/8
NormalizedByte4 r = new NormalizedByte4();
r.PackFromBytes(9, 115, 202, 127);
r.ToXyzwBytes(rgba, 0);
Assert.Equal(rgba, new byte[] { 9, 115, 202, 127 });
r.PackedValue = 0xff4af389;
r.ToXyzwBytes(rgba, 0);
Assert.Equal(rgba, new byte[] { 9, 115, 202, 127 });
}
