GetEncoder(SaveFormat saveFormat)
{
SixLabors.ImageSharp.Formats.IImageEncoder enc = null;
switch (saveFormat)
{
case SaveFormat.Png:
enc = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
break;
case SaveFormat.Jpg:
enc = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
break;
case SaveFormat.Gif:
enc = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
break;
case SaveFormat.Bmp:
enc = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
break;
default:
enc = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
break;
}
return(enc);
} // End Function GetEncoder
// 이미지를 팔레트화시킨다.
// 팔레트에는 반드시 검은색과 흰색은 빠지도록 한다.
private string ExecuteQuantize(string sourceFileName, int maxColor = 30)
{
var targetFileName = AppendToFileName(sourceFileName, "-Q");
var quantizer = new WuQuantizer(null, maxColor);
var config = Configuration.Default;
using (var image = Image.Load <Rgba32>(sourceFileName))
using (var quantizedResult = quantizer.CreateFrameQuantizer <Rgba32>(config).QuantizeFrame(image.Frames[0]))
{
var quantizedPalette = new List <Color>();
foreach (var p in quantizedResult.Palette.Span)
{
var c = new Color(p);
// 팔레트에 흰색과 검은색은 반드시 빠지도록 한다.
if (c != Color.White && c != Color.Black)
{
quantizedPalette.Add(c);
}
}
using (var stream = new FileStream(targetFileName, FileMode.Create))
{
var encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder
{
Quantizer = new PaletteQuantizer(quantizedPalette.ToArray(), false),
ColorType = SixLabors.ImageSharp.Formats.Png.PngColorType.Palette,
};
image.SaveAsPng(stream, encoder);
stream.Close();
}
return(targetFileName);
}
}
private void InternalImageSharpConvertImage(Stream inStream, Stream outStream, int width, int height, ThumbnailResizeType resizeType, ThumbnailFormatType formatType)
{
using var image = SixLabors.ImageSharp.Image.Load(inStream);
image.Mutate(x =>
{
var resizeOptions = new ResizeOptions
{
Position = AnchorPositionMode.Center,
Size = new SixLabors.ImageSharp.Size(width, height),
Mode = resizeType switch
{
ThumbnailResizeType.Pad => ResizeMode.Pad,
ThumbnailResizeType.Crop => ResizeMode.Crop,
_ => throw new NotSupportedException(),
},
};
x.Resize(resizeOptions);
});
if (formatType == ThumbnailFormatType.Png)
{
var encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
image.Save(outStream, encoder);
return;
}
throw new NotSupportedException();
}
public IImageEncoder ConvertEncoder()
{
SixLabors.ImageSharp.Formats.Png.PngEncoder encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
if (_compressionLevel.HasValue)
{
encoder.CompressionLevel = _compressionLevel.Value;
}
return(encoder);
}
public static void fooo(string fileName, SaveFormat saveFormat)
{
//var imagePath = Microsoft.AspNetCore.Http.PathString.FromUriComponent("/" + url);
//var fileInfo = _fileProvider.GetFileInfo(imagePath);
var fileInfo = new System.IO.FileInfo(fileName);
//if (!fileInfo.Exists) { return NotFound(); }
int width = 100;
int height = 100;
byte[] data = null;
using (MemoryStream outputStream = new MemoryStream())
{
using (System.IO.Stream inputStream = fileInfo.OpenRead())
{
using (Image <Rgba32> image = Image.Load(inputStream))
{
image.Mutate(
delegate(IImageProcessingContext <Rgba32> mutant)
{
mutant.Resize(image.Width / 2, image.Height / 2);
}
);
IImageEncoder enc = null;
if (saveFormat == SaveFormat.Jpg)
{
enc = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
}
else if (saveFormat == SaveFormat.Png)
{
enc = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
}
else if (saveFormat == SaveFormat.Png)
{
enc = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
}
else if (saveFormat == SaveFormat.Bmp)
{
enc = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
}
image.Save(outputStream, enc);
} // End Using image
data = outputStream.ToArray();
} // End Using inputStream
} // End Using outputStream
} // End Sub fooo
public IMAGEENCODER GetEncoder(SixLabors.ImageSharp.Formats.Png.PngColorType colorType)
{
var encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder
{
CompressionLevel = this.CompressionLevel,
ColorType = colorType,
};
void act(SDK.ExportContext ctx, IMAGE32 img) => ctx.WriteStream(s => img.Save(s, encoder));
return(act);
}
public static byte[] ResizeImage(string fileName, SaveFormat saveFormat)
{
byte[] data = null;
using (MemoryStream outputStream = new MemoryStream())
{
using (Image <Rgba32> image = Image.Load(fileName))
{
image.Mutate(
delegate(IImageProcessingContext <Rgba32> mutant)
{
mutant.Resize(image.Width / 22, image.Height / 22);
}
);
IImageEncoder enc = null;
if (saveFormat == SaveFormat.Jpg)
{
enc = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
}
else if (saveFormat == SaveFormat.Png)
{
enc = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
}
else if (saveFormat == SaveFormat.GIF)
{
enc = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
}
else if (saveFormat == SaveFormat.Bmp)
{
enc = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
}
image.Save(@"D:\myfileformat." + saveFormat.ToString().ToLowerInvariant(), enc);
image.SaveAsJpeg(outputStream);
} // End Using image
data = outputStream.ToArray();
} // End Using outputStream
System.IO.File.WriteAllBytes(@"d:\myfile.jpg", data);
return(data);
} // End Sub ResizeImage
public static void Initialize(Options options)
{
Stream resource = null;
default_width = options.DefaultDimension;
default_image = options.DefaultImage ?? "default.png";
_persist_image = options.PersistImages;
rootPath = options.RootPath;
_pngEncoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
if (!String.IsNullOrEmpty(options.SpriteFile) &&
File.Exists(options.SpriteFile))
{
resource = new FileStream(options.SpriteFile, FileMode.Open, FileAccess.Read);
}
else
{
var assembly = typeof(JAvatar.Generator).Assembly;
resource = assembly.GetManifestResourceStream("JAvatar.JAvatars.png");
}
try
{
string javatarPath = System.IO.Path.Combine(rootPath, options.RoutePrefix);
if (!Directory.Exists(javatarPath))
{
Directory.CreateDirectory(javatarPath);
}
foreach (var f in options.Folders)
{
string destPath = System.IO.Path.Combine(javatarPath, f.Name);
if (!Directory.Exists(destPath))
{
Directory.CreateDirectory(destPath);
}
}
} catch {
throw new Exception("Invalid JAvatar folders");
}
Initialize(resource);
resource.Dispose();
}
public void Save(System.IO.Stream strm, System.Drawing.Imaging.ImageFormat format)
{
SixLabors.ImageSharp.Formats.IImageEncoder enc = null;
if (format == System.Drawing.Imaging.ImageFormat.Jpeg)
{
enc = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
}
else if (format == System.Drawing.Imaging.ImageFormat.Png)
{
enc = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
}
else if (format == System.Drawing.Imaging.ImageFormat.Gif)
{
enc = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
}
else if (format == System.Drawing.Imaging.ImageFormat.Bmp)
{
enc = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
}
this.m_image.Save(strm, enc);
}
public async Task <bool> ApplyLogo()
{
var result = false;
SetupInitialLogo();
if (mainViewModel != null &&
mainViewModel.originalWriteableBitmap != null &&
SelectedForExport)
{
try
{
int newLogoInsertHeight = ImageHeight - TopPadding - BottomPadding;
var config = new Configuration();
var backgroundPixel = new Rgba32();
if (mainViewModel.UseTransparentBackground)
{
backgroundPixel = SixLabors.ImageSharp.Color.Transparent;
}
else
{
backgroundPixel.R = mainViewModel.BackgroundColour.R;
backgroundPixel.G = mainViewModel.BackgroundColour.G;
backgroundPixel.B = mainViewModel.BackgroundColour.B;
backgroundPixel.A = mainViewModel.BackgroundColour.A;
}
var newLogo = new Image <Rgba32>(config, ImageWidth, ImageHeight, backgroundPixel);
var options = new ResizeOptions()
{
Mode = ResizeMode.Max,
Position = AnchorPositionMode.Center,
Size = new SixLabors.Primitives.Size(ImageWidth - TwentyPercentOf(ImageWidth), newLogoInsertHeight),
Sampler = mainViewModel.SelectedResampler.Value
};
var inStream = await mainViewModel.OriginalLogoFile.OpenReadAsync();
var resizedOriginal = Image <Rgba32> .Load(inStream.AsStreamForRead());
//resize the image to fit the GIF frame bounds
resizedOriginal.Mutate(r => r.Resize(options));
//Get the top left point within the logo bounds
var left = HalfOf(ImageWidth) - HalfOf(resizedOriginal.Width);
var top = HalfOf(ImageHeight) - HalfOf(resizedOriginal.Height);
newLogo.Mutate(w => w.DrawImage(resizedOriginal, new SixLabors.Primitives.Point(left, top), 1));
InMemoryRandomAccessStream myStream = new InMemoryRandomAccessStream();
SixLabors.ImageSharp.Formats.Png.PngEncoder encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
newLogo.SaveAsPng(myStream.AsStream(), encoder);
myStream.Seek(0);
Logo = await BitmapFactory.FromStream(myStream);
NotifyPropertyChanged("Logo");
result = true;
}
catch (Exception ex)
{
}
SavedSuccessfully = false;
}
return(result);
}
public static MemoryStream Mark(MemoryStream inStream, string text, string fontPath)
{
text = $"···甘井子区重点车辆管理系统·{text}···";
//首先先判断该图片是否是 gif动画，如果为gif动画不对图片进行改动
using (Image <Rgba32> img = Image.Load(inStream.ToArray(), out IImageFormat format))
{
FontCollection fonts = new FontCollection();
FontFamily fontFamily = fonts.Install(fontPath);
if (fontFamily == null)
{
SystemFonts.TryFind("DejaVu Sans", out fontFamily);
}
if (fontFamily == null)
{
SystemFonts.TryFind("Book", out fontFamily);
}
if (fontFamily == null)
{
SystemFonts.TryFind("DengXian", out fontFamily);
}
if (fontFamily == null)
{
SystemFonts.TryFind("SimSun", out fontFamily);
}
if (fontFamily == null)
{
SystemFonts.TryFind("Arial", out fontFamily);
}
if (fontFamily == null)
{
fontFamily = SystemFonts.Families.First(t => t.Name.Contains("Hei") || t.Name.Contains("黑"));
}
if (fontFamily == null)
{
fontFamily = SystemFonts.Families.First();
}
var font = fontFamily.CreateFont(14f);
using (var img2 = img.Clone(ctx => ctx.ApplyScalingWaterMark(font, text, Rgba32.FromHex("ffffffdd"), 20, false)))
{
IImageEncoder encoder = null;
if (format == ImageFormats.Bmp)
{
encoder = new SixLabors.ImageSharp.Formats.Bmp.BmpEncoder();
}
else if (format == ImageFormats.Jpeg)
{
encoder = new SixLabors.ImageSharp.Formats.Jpeg.JpegEncoder();
}
else if (format == ImageFormats.Png)
{
encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
}
else if (format == ImageFormats.Gif)
{
encoder = new SixLabors.ImageSharp.Formats.Gif.GifEncoder();
}
MemoryStream outStream = new MemoryStream();
img2.Save(outStream, encoder);
outStream.Close();
return(outStream);
}
}
}
private static async Task UploadImageAsync(ChatMessage message)
{
if (isUploadingImage || message.ImageBase64.Length > 10_000_000)
{
throw new Exception();
}
isUploadingImage = true;
byte[] binary = null;
if (message.ImageBase64.StartsWith("http://") || message.ImageBase64.StartsWith("https://"))
{
using (var http = new HttpClient())
{
binary = await http.GetByteArrayAsync(message.ImageBase64);
}
}
else if (message.ImageBase64.StartsWith("data:image"))
{
// data:image/png;base64,iVB
var strs = new string[] { "data:image/png;base64,", "data:image/jpg;base64,", "data:image/jpeg;base64,", "data:image/gif;base64,", "data:image/bmp;base64,", };
foreach (var str in strs)
{
if (message.ImageBase64.StartsWith(str))
{
message.ImageBase64 = message.ImageBase64.Substring(str.Length);
binary = Convert.FromBase64String(message.ImageBase64);
break;
}
}
}
else
{
binary = Convert.FromBase64String(message.ImageBase64);
}
var imageKey = RandomService.Next(1, 65535);
var saveFileName = Config.Game.UploadedIconDirectory + $"c_{message.Id}_{imageKey}.png";
try
{
using (Image <Rgba32> image = binary != null ? Image.Load(binary) : Image.Load(message.ImageBase64))
{
var width = image.Width;
var height = image.Height;
var isResize = false;
if (width > 1200)
{
height = (int)(height * ((float)1200 / width));
width = 1200;
isResize = true;
}
if (height > 1200)
{
width = (int)(width * ((float)1200 / height));
height = 1200;
isResize = true;
}
if (isResize)
{
image.Mutate(x =>
{
x.Resize(width, height);
});
}
using (var stream = new FileStream(saveFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
var encoder = new SixLabors.ImageSharp.Formats.Png.PngEncoder();
image.Save(stream, encoder);
}
}
message.ImageKey = imageKey;
Task.Run(() =>
{
Task.Delay(10_000).Wait();
isUploadingImage = false;
});
}
catch (Exception ex)
{
message.ImageKey = 0;
Task.Run(() =>
{
Task.Delay(10_000).Wait();
isUploadingImage = false;
});
throw ex;
}
}
