public void Test(string fileName, int width, int height)
{
string pngFilePath = TestUtil.GetResourceFilePath(fileName);
using var pngStream = File.OpenRead(pngFilePath);
string icoFilePath = TestUtil.GetTestFilePath(Path.GetFileName(pngFilePath) + ".ico");
using (var icoStream = File.OpenWrite(icoFilePath))
{
var icoEncoder = new IcoEncoder(icoStream);
icoEncoder.AddImage(new ImageInfo(pngStream, (byte)width, (byte)height, 0, 32));
icoEncoder.Commit();
}
ValidateIcoFile(icoFilePath, width, height);
}
private static void EncodeImageForResolution(IcoEncoder icoEncoder, WICSize resolution, string sourceImagePath)
{
using var sourceImageStream = File.OpenRead(sourceImagePath);
var sourceImageDecoder = wic.CreateDecoderFromStream(sourceImageStream, WICDecodeOptions.WICDecodeMetadataCacheOnLoad);
var pngImageStream = new MemoryStream();
var pngEncoder = wic.CreateEncoder(ContainerFormat.Png);
pngEncoder.Initialize(pngImageStream, WICBitmapEncoderCacheOption.WICBitmapEncoderNoCache);
var pngImage = pngEncoder.CreateNewFrame();
pngImage.Initialize();
pngImage.SetPixelFormat(WICPixelFormat.WICPixelFormat32bppBGRA);
pngImage.SetSize(resolution.Width, resolution.Height);
var sourceImage = sourceImageDecoder.GetFrame(0);
if (sourceImage.GetSize().Equals(resolution))
{
pngImage.WriteSource(sourceImage);
}
else
{
var scaler = wic.CreateBitmapScaler();
scaler.Initialize(sourceImage, resolution, WICBitmapInterpolationMode.WICBitmapInterpolationModeNearestNeighbor);
pngImage.WriteSource(scaler);
}
pngImage.Commit();
pngEncoder.Commit();
pngImageStream.Flush();
byte width = (byte)(resolution.Width == 256 ? 0 : resolution.Width);
byte height = (byte)(resolution.Height == 256 ? 0 : resolution.Height);
icoEncoder.AddImage(new ImageInfo(pngImageStream, width, height, 0, 32));
}