public async Task ExactBoth(int sourceWidth, int sourceHeight, int desiredWidth, int desiredHeight)
{
var resizer = _serviceProvider.GetRequiredService <IImageResizer>();
var source = DebugImageData.CreateSource(new DebugImageData(sourceWidth, sourceHeight, ImageTypes.Jpeg));
var destination = DebugImageData.CreateDestination();
await resizer.ResizeAsync(source, destination, new ResizeOptions(resizeMode : "exact", width : desiredWidth, height : desiredHeight));
Assert.NotNull(destination.Data);
Assert.Equal(desiredWidth, destination.Data.Width);
Assert.Equal(desiredHeight, destination.Data.Height);
Assert.Equal(ImageTypes.Jpeg, destination.Data.ImageType);
}
public async Task Noop()
{
var resizer = _serviceProvider.GetRequiredService <IImageResizer>();
var source = DebugImageData.CreateSource(new DebugImageData(400, 400, ImageTypes.Jpeg));
var destination = DebugImageData.CreateDestination();
await resizer.ResizeAsync(source, destination, new ResizeOptions());
Assert.NotNull(destination.Data);
Assert.Equal(400, destination.Data.Width);
Assert.Equal(400, destination.Data.Height);
Assert.Equal(ImageTypes.Jpeg, destination.Data.ImageType);
await resizer.ResizeAsync(source, destination, new ResizeOptions(imageType : ImageTypes.Png));
Assert.NotNull(destination.Data);
Assert.Equal(400, destination.Data.Width);
Assert.Equal(400, destination.Data.Height);
Assert.Equal(ImageTypes.Png, destination.Data.ImageType);
}
public async Task Exact(int sourceWidth, int sourceHeight, int?desiredWidth, int?desiredHeight)
{
var resizer = _serviceProvider.GetRequiredService <IImageResizer>();
var source = DebugImageData.CreateSource(new DebugImageData(sourceWidth, sourceHeight, ImageTypes.Jpeg));
var destination = DebugImageData.CreateDestination();
await resizer.ResizeAsync(source, destination, new ResizeOptions(resizeMode : "exact", width : desiredWidth, height : desiredHeight));
Assert.NotNull(destination.Data);
if (desiredWidth.HasValue)
{
Assert.Equal(desiredWidth.Value, destination.Data.Width);
var h = (int)((double)desiredWidth.Value * sourceHeight / sourceWidth);
Assert.Equal(h, destination.Data.Height);
}
if (desiredHeight.HasValue)
{
Assert.Equal(desiredHeight.Value, destination.Data.Height);
var w = (int)((double)desiredHeight.Value * sourceWidth / sourceHeight);
Assert.Equal(w, destination.Data.Width);
}
Assert.Equal(ImageTypes.Jpeg, destination.Data.ImageType);
}
public IStreamConsumer CreateConsumer(ContentInfo contentInfo) => StreamConsumer.Create(DeserializeAsync).Bind(data => Data = data);
public DebugImageSource(DebugImageData data) => _data = data ?? throw new ArgumentNullException(nameof(data));
public async ValueTask <IImage> FromStreamAsync(Stream source, CancellationToken cancellationToken = default)
{
var data = await DebugImageData.DeserializeAsync(source, cancellationToken);
return(new DebugImage(new Size(data.Width, data.Height), data.ImageType));
}
