private void ApplyResize(SKBitmap original, InputImageParameters inputImage, OutputImageParameters outputImage)
{
if (!outputImage.Resized)
{
return;
}
using (SKBitmap resized = original.Resize(new SKImageInfo(outputImage.Width, outputImage.Height), SKFilterQuality.High))
{
if (resized == null)
{
throw new ArgumentException {
Data = { { "ValidationData", new { Body = new { Image = "Something wrong with incoming image" } } } }
}
}
;
using (SKImage image = SKImage.FromBitmap(resized))
{
MemoryStream output = new MemoryStream();
image.Encode(inputImage.Format, outputImage.Quality).SaveTo(output);
outputImage.OutputStream = output;
}
}
}
public IEnumerable <OutputImageParameters> ResizeMultiple(InputImageParameters inputImage, IEnumerable <ImageSizeParam> targetSizes)
{
using (SKBitmap original = SKBitmap.Decode(inputImage.InputStream))
{
if (original == null)
{
throw new ArgumentException {
Data = { { "ValidationData", new { Body = new { Image = "Something wrong with incoming image" } } } }
}
}
;
IOrderedEnumerable <OutputImageParameters> outputImages = targetSizes
.Select(targetSize => CalculateSize(original.Width, original.Height, targetSize, inputImage.MinimumDifference))
.OrderByDescending(s => s.Width);
foreach (OutputImageParameters outputImage in outputImages)
{
if (!outputImage.Resized)
{
continue;
}
ApplyResize(original, inputImage, outputImage);
yield return(outputImage);
}
}
}
private OutputImageParameters Resize(SKBitmap original, InputImageParameters inputImage, ImageSizeParam targetSize)
{
OutputImageParameters outputImage = CalculateSize(original.Width, original.Height, targetSize, inputImage.MinimumDifference);
ApplyResize(original, inputImage, outputImage);
return(outputImage);
}
public OutputImageParameters Resize(InputImageParameters inputImage, ImageSizeParam targetSize)
{
using (SKBitmap original = SKBitmap.Decode(inputImage.InputStream))
{
if (original == null)
{
throw new ArgumentException {
Data = { { "ValidationData", new { Body = new { Image = "Something wrong with incoming image" } } } }
}
}
;
return(Resize(original, inputImage, targetSize));
}
}
