public void TestMipmaps()
{
// load checkers texture
var tex = new TextureArray2D(IO.LoadImage(TestData.Directory + "checkers.dds"));
Assert.AreEqual(3, tex.NumMipmaps);
Assert.AreEqual(4, tex.Size.Width);
Assert.AreEqual(4, tex.Size.Height);
TestData.TestCheckersLevel0(tex.GetPixelColors(0, 0));
TestData.TestCheckersLevel1(tex.GetPixelColors(0, 1));
TestData.TestCheckersLevel2(tex.GetPixelColors(0, 2));
// remove mipmaps
tex = tex.CloneWithoutMipmapsT();
Assert.AreEqual(1, tex.NumMipmaps);
Assert.AreEqual(4, tex.Size.Width);
Assert.AreEqual(4, tex.Size.Height);
TestData.TestCheckersLevel0(tex.GetPixelColors(0, 0));
// generate mipmaps again
tex = tex.GenerateMipmapLevelsT(3);
Assert.AreEqual(3, tex.NumMipmaps);
Assert.AreEqual(4, tex.Size.Width);
Assert.AreEqual(4, tex.Size.Height);
TestData.TestCheckersLevel0(tex.GetPixelColors(0, 0));
TestData.TestCheckersLevel1(tex.GetPixelColors(0, 1));
TestData.TestCheckersLevel2(tex.GetPixelColors(0, 2));
}
public void MagnifyCheckers()
{
var model = new ThumbnailModel(new QuadShader());
var checkers = new TextureArray2D(IO.LoadImage(TestData.Directory + "checkers.dds"));
var lvl1Checkers = checkers.CloneWithoutMipmapsT(1);
var res = model.CreateThumbnail(4, lvl1Checkers, Format.R8G8B8A8_UNorm_SRgb, 0);
Assert.AreEqual(4, res.Size.Width);
Assert.AreEqual(4, res.Size.Height);
var colors = res.GetPixelColors(0, 0);
TestData.TestCheckersLevel0(colors);
}
public void MinifyCheckersMissingMipmaps()
{
var models = new Models(1);
var model = new ThumbnailModel(new QuadShader());
var checkers = new TextureArray2D(IO.LoadImage(TestData.Directory + "checkers.dds"));
var lvl0Checkers = checkers.CloneWithoutMipmapsT();
TestData.TestCheckersLevel0(lvl0Checkers.GetPixelColors(LayerMipmapSlice.Mip0));
var res = model.CreateThumbnail(2, lvl0Checkers, Format.R8G8B8A8_UNorm_SRgb, 0, models.Scaling);
Assert.AreEqual(2, res.Size.Width);
Assert.AreEqual(2, res.Size.Height);
var colors = res.GetPixelColors(LayerMipmapSlice.Mip0);
TestData.TestCheckersLevel1(colors);
}