public void SSIMMultiscaleLuminance()
{
var s = new MultiscaleSSIMShader();
var toRed = new ImageFramework.Model.Shader.TransformShader("return value.r;", "float4", "float");
var fromRed = new ImageFramework.Model.Shader.TransformShader("return float4(value, value, value, 1.0);", "float", "float4");
var tex = IO.LoadImageTexture(TestData.Directory + "checkers.dds");
var redTex = new TextureArray2D(tex.LayerMipmap, tex.Size, Format.R32_Float, true);
var dstTex = new TextureArray2D(tex.LayerMipmap, tex.Size, Format.R32G32B32A32_Float, true);
var upload = new UploadBuffer(256);
Assert.AreEqual(tex.NumMipmaps, 3);
var expected = tex.GetPixelColors(LayerMipmapSlice.Mip2)[0];
// copy checkers red channel only
foreach (var lm in tex.LayerMipmap.Range)
{
toRed.Run(tex, redTex, lm, upload);
}
// this should copy lowest resolution mipmap to first mipmap
s.RunCopy(redTex, LayerMipmapSlice.Mip0, upload);
// copy back
foreach (var lm in tex.LayerMipmap.Range)
{
fromRed.Run(redTex, dstTex, lm, upload);
}
var actual = dstTex.GetPixelColors(LayerMipmapSlice.Mip0);
foreach (var color in actual)
{
Assert.IsTrue(color.Equals(expected, Color.Channel.R, 0.0011f));
}
}
public void SSIMMultiscaleCompile()
{
var s = new MultiscaleSSIMShader();
s.CompileShaders();
}