public void TextureUnits()
{
using (GraphicsWindow window = Device.CreateWindow(1, 1))
using (Texture2D texture = Device.CreateTexture2D(new Texture2DDescription(1, 1, TextureFormat.RedGreenBlueAlpha8, false)))
using (TextureSampler sampler = Device.CreateTexture2DSampler(
TextureMinificationFilter.Nearest,
TextureMagnificationFilter.Nearest,
TextureWrap.Clamp,
TextureWrap.Clamp,
2))
{
window.Context.TextureUnits[0].Texture = texture;
window.Context.TextureUnits[0].TextureSampler = Device.TextureSamplers.LinearRepeat;
Assert.AreEqual(texture, window.Context.TextureUnits[0].Texture);
Assert.AreEqual(Device.TextureSamplers.LinearRepeat, window.Context.TextureUnits[0].TextureSampler);
//
// Assign same texture with different filter
//
window.Context.TextureUnits[0].Texture = texture;
window.Context.TextureUnits[0].TextureSampler = sampler;
Assert.AreEqual(texture, window.Context.TextureUnits[0].Texture);
Assert.AreEqual(sampler, window.Context.TextureUnits[0].TextureSampler);
}
}
public void Texture2DSampler()
{
using (GraphicsWindow window = Device.CreateWindow(1, 1))
{
using (TextureSampler filter = Device.CreateTexture2DSampler(
TextureMinificationFilter.Linear,
TextureMagnificationFilter.Nearest,
TextureWrap.MirroredRepeat,
TextureWrap.Repeat,
2))
{
Assert.AreEqual(TextureMinificationFilter.Linear, filter.MinificationFilter);
Assert.AreEqual(TextureMagnificationFilter.Nearest, filter.MagnificationFilter);
Assert.AreEqual(TextureWrap.MirroredRepeat, filter.WrapS);
Assert.AreEqual(TextureWrap.Repeat, filter.WrapT);
Assert.AreEqual(2, filter.MaximumAnisotropic);
}
}
}
private void ApplySampler(TextureSampler sampler)
{
TextureMinFilter minFilter = TypeConverterGL3x.To(sampler.MinificationFilter);
TextureMagFilter magFilter = TypeConverterGL3x.To(sampler.MagnificationFilter);
TextureWrapMode wrapS = TypeConverterGL3x.To(sampler.WrapS);
TextureWrapMode wrapT = TypeConverterGL3x.To(sampler.WrapT);
GL.TexParameter(_target, TextureParameterName.TextureMinFilter, (int)minFilter);
GL.TexParameter(_target, TextureParameterName.TextureMagFilter, (int)magFilter);
GL.TexParameter(_target, TextureParameterName.TextureWrapS, (int)wrapS);
GL.TexParameter(_target, TextureParameterName.TextureWrapT, (int)wrapT);
}