Example #1
0
        public void Byte4()
        {
            // Test the limits.
            Assert.Equal((uint)0x0, new Byte4(Vector4.Zero).PackedValue);
            Assert.Equal(0xFFFFFFFF, new Byte4(Vector4.One * 255).PackedValue);

            // Test ToVector4.
            Assert.True(Equal(Vector4.One * 255, new Byte4(Vector4.One * 255).ToVector4()));
            Assert.True(Equal(Vector4.Zero, new Byte4(Vector4.Zero).ToVector4()));
            Assert.True(Equal(Vector4.UnitX * 255, new Byte4(Vector4.UnitX * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitY * 255, new Byte4(Vector4.UnitY * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitZ * 255, new Byte4(Vector4.UnitZ * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitW * 255, new Byte4(Vector4.UnitW * 255).ToVector4()));

            // Test clamping.
            Assert.True(Equal(Vector4.Zero, new Byte4(Vector4.One * -1234.0f).ToVector4()));
            Assert.True(Equal(Vector4.One * 255, new Byte4(Vector4.One * 1234.0f).ToVector4()));

            // Test ordering
            float x = 0x2d;
            float y = 0x36;
            float z = 0x7b;
            float w = 0x1a;

            Assert.Equal((uint)0x1a7b362d, new Byte4(x, y, z, w).PackedValue);

            x = 127.5f;
            y = -12.3f;
            z = 0.5f;
            w = -0.7f;
            Assert.Equal((uint)128, new Byte4(x, y, z, w).PackedValue);

            // Test ordering
            byte[] rgb  = new byte[3];
            byte[] rgba = new byte[4];
            byte[] bgr  = new byte[3];
            byte[] bgra = new byte[4];

            new Byte4(x, y, z, w).ToXyzBytes(rgb, 0);
            Assert.Equal(rgb, new byte[] { 128, 0, 0 });

            new Byte4(x, y, z, w).ToXyzwBytes(rgba, 0);
            Assert.Equal(rgba, new byte[] { 128, 0, 0, 0 });

            new Byte4(x, y, z, w).ToZyxBytes(bgr, 0);
            Assert.Equal(bgr, new byte[] { 0, 0, 128 });

            new Byte4(x, y, z, w).ToZyxwBytes(bgra, 0);
            Assert.Equal(bgra, new byte[] { 0, 0, 128, 0 });

            Byte4 r = new Byte4();

            r.PackFromRgba32(new Rgba32(20, 38, 0, 255));
            r.ToXyzwBytes(rgba, 0);
            Assert.Equal(rgba, new byte[] { 20, 38, 0, 255 });
        }
Example #2
0
        public void Byte4()
        {
            // Test the limits.
            Assert.Equal((uint)0x0, new Byte4(Vector4.Zero).PackedValue);
            Assert.Equal(0xFFFFFFFF, new Byte4(Vector4.One * 255).PackedValue);

            // Test ToVector4.
            Assert.True(Equal(Vector4.One * 255, new Byte4(Vector4.One * 255).ToVector4()));
            Assert.True(Equal(Vector4.Zero, new Byte4(Vector4.Zero).ToVector4()));
            Assert.True(Equal(Vector4.UnitX * 255, new Byte4(Vector4.UnitX * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitY * 255, new Byte4(Vector4.UnitY * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitZ * 255, new Byte4(Vector4.UnitZ * 255).ToVector4()));
            Assert.True(Equal(Vector4.UnitW * 255, new Byte4(Vector4.UnitW * 255).ToVector4()));

            // Test clamping.
            Assert.True(Equal(Vector4.Zero, new Byte4(Vector4.One * -1234.0f).ToVector4()));
            Assert.True(Equal(Vector4.One * 255, new Byte4(Vector4.One * 1234.0f).ToVector4()));

            // Test ordering
            float x = 0x2d;
            float y = 0x36;
            float z = 0x7b;
            float w = 0x1a;

            Assert.Equal((uint)0x1a7b362d, new Byte4(x, y, z, w).PackedValue);

            x = 127.5f;
            y = -12.3f;
            z = 0.5f;
            w = -0.7f;
            Assert.Equal((uint)128, new Byte4(x, y, z, w).PackedValue);

            // Test ordering
            var rgb  = default(Rgb24);
            var rgba = default(Rgba32);
            var bgr  = default(Bgr24);
            var bgra = default(Bgra32);

            new Byte4(x, y, z, w).ToRgb24(ref rgb);
            Assert.Equal(rgb, new Rgb24(128, 0, 0));

            new Byte4(x, y, z, w).ToRgba32(ref rgba);
            Assert.Equal(rgba, new Rgba32(128, 0, 0, 0));

            new Byte4(x, y, z, w).ToBgr24(ref bgr);
            Assert.Equal(bgr, new Bgr24(128, 0, 0));

            new Byte4(x, y, z, w).ToBgra32(ref bgra);
            Assert.Equal(bgra, new Bgra32(128, 0, 0, 0));

            var r = new Byte4();

            r.PackFromRgba32(new Rgba32(20, 38, 0, 255));
            r.ToRgba32(ref rgba);
            Assert.Equal(rgba, new Rgba32(20, 38, 0, 255));
        }