public void TestGetBlpSKBitmap(string inputImagePath, string expectedImagePath, int mipMapLevel)
{
using (var fileStream = File.OpenRead(inputImagePath))
{
var expectedImage = new Bitmap(expectedImagePath);
var blpFile = new BlpFile(fileStream);
var actualImage = blpFile.GetSKBitmap(mipMapLevel);
Assert.AreEqual(expectedImage.Width, actualImage.Width);
Assert.AreEqual(expectedImage.Height, actualImage.Height);
for (var y = 0; y < expectedImage.Height; y++)
{
for (var x = 0; x < expectedImage.Width; x++)
{
// Allow pixel values to be slightly different, since some testcases were decoded with WPF (BitmapSource), not SkiaSharp.
const int delta = 1;
var expectedPixel = expectedImage.GetPixel(x, y);
var actualPixel = actualImage.GetPixel(x, y);
var message = $"Expected:<{expectedPixel}>. Actual:<{actualPixel.ToColorString()}>";
Assert.IsTrue(Math.Abs(expectedPixel.A - actualPixel.Alpha) <= delta, message);
Assert.IsTrue(Math.Abs(expectedPixel.R - actualPixel.Red) <= delta, message);
Assert.IsTrue(Math.Abs(expectedPixel.G - actualPixel.Green) <= delta, message);
Assert.IsTrue(Math.Abs(expectedPixel.B - actualPixel.Blue) <= delta, message);
}
}
expectedImage.Dispose();
blpFile.Dispose();
}
}