MonoGame - 2x2 texture scaling issue

Question

I've just recently switched from XNA to MonoGame and now I've run into something that has never happened to me in XNA before.

I've created a 2x2 texture and filled it with a color by doing this:

//Generates a texture from the color.
Texture2D texture = new Texture2D(Constants.GAME.GraphicsDevice, 2, 2, false, SurfaceFormat.Color);
texture.SetData<Color>(new Color[] { alternateColor });

AlternateColor = texture;

What I use this texture for is for drawing rectangles of different sizes using the specified color. This has usually worked just fine for me in XNA but when I do this in MonoGame I get this:

The screen is suppose to be black here as I'm scaling that 2x2 texture up to fill the entire screen.

I've tried turning mipmaps off, I've tried turning multisampling off and I've tried setting my sample state [0] to use PointWrap but I just can't seem to get this to work.

Any suggestions would be much welcomed.

Thanks!

Answer 1

Another solution that also explains the problem you ran in to:

Texture2D texture = new Texture2D(Constants.GAME.GraphicsDevice, 2, 2, false, SurfaceFormat.Color);
texture.SetData<Color>(new Color[] {
    alternateColor,
    alternateColor,
    alternateColor,
    alternateColor 
});

One color for each pixel in the texture (2x2 = 4)

Answer 2

I ran into this (two years later) and found a different solution. The way you're creating your texture is fine (you can even create a 1x1 texture), and then specify a Rectangle when you draw it.

Creation:

var texture = new Texture2D(this.graphicsDevice, 1, 1, false, SurfaceFormat.Color);
texture.SetData<Color>(new Color[] { Color.White });

Drawing:

spriteBatch.draw(texture, null, new Rectangle(x, y, width, height), null, null, 0, Vector2.One, Color.MyChoiceOfColorHere)

As @Felsir pointed out, this is more efficient, because it shares a single white texture across all your coloured rectangles.

The four default-valued parameters preceeding the colour are the source rectangle, the origin, rotation, and scale.

Answer 3

I changed the texture size to 1x1 instead of 2x2 and that seemed to fix it.