public unsafe void DataOutLivesImageUntilFinalizersRun()
{
var released = false;
var bytes = File.ReadAllBytes(Path.Combine(PathToImages, "baboon.jpg"));
var gch = GCHandle.Alloc(bytes, GCHandleType.Pinned);
var dataHandle = DoWork();
Assert.Equal(1, dataHandle.GetReferenceCount(false));
Assert.False(released, "Data was disposed too soon.");
CollectGarbage();
Assert.True(released, "Data was not disposed.");
gch.Free();
IntPtr DoWork()
{
var input = SKData.Create(gch.AddrOfPinnedObject(), bytes.Length, (_, __) => released = true);
var handle = input.Handle;
var img = SKImage.FromEncodedData(input);
Assert.Equal(3, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
img.Dispose();
Assert.Equal(1, handle.GetReferenceCount(false));
Assert.False(released, "Data was disposed too soon.");
return(handle);
}
}
/// <summary>
/// Creates a bitmap of the graph.
/// </summary>
/// <param name="Settings">Graph settings.</param>
/// <param name="States">State object(s) that contain graph-specific information about its inner states.
/// These can be used in calls back to the graph object to make actions on the generated graph.</param>
/// <returns>Bitmap</returns>
public override SKImage CreateBitmap(GraphSettings Settings, out object[] States)
{
SKImageInfo ImageInfo = new SKImageInfo(this.bitmap.Width, this.bitmap.Height, SKColorType.Bgra8888);
int c = ImageInfo.BytesSize;
States = new object[0];
IntPtr Pixels = Marshal.AllocCoTaskMem(c);
try
{
this.bitmap.ReadPixels(ImageInfo, Pixels, ImageInfo.RowBytes, 0, 0);
using (SKData Data = SKData.Create(Pixels, c))
{
SKImage Result = SKImage.FromPixels(new SKImageInfo(ImageInfo.Width, ImageInfo.Height, SKColorType.Bgra8888), Data, ImageInfo.RowBytes);
Pixels = IntPtr.Zero;
return(Result);
}
}
finally
{
if (Pixels != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(Pixels);
}
}
}
public unsafe void ReleaseDataWasInvokedOnlyAfterTheTypefaceWasFinished()
{
if (IsMac)
{
throw new SkipException("macOS does not release the data when the typeface is disposed.");
}
var path = Path.Combine(PathToFonts, "Distortable.ttf");
var bytes = File.ReadAllBytes(path);
var released = false;
fixed(byte *b = bytes)
{
var data = SKData.Create((IntPtr)b, bytes.Length, (addr, ctx) => released = true);
var typeface = SKTypeface.FromData(data);
Assert.Equal("Distortable", typeface.FamilyName);
data.Dispose();
Assert.False(released, "The SKDataReleaseDelegate was called too soon.");
typeface.Dispose();
Assert.True(released, "The SKDataReleaseDelegate was not called at all.");
}
}
public unsafe bool Register(ResourceFile file, out string familyName)
{
if (file.IsNone)
{
throw new ArgumentException("file is none.", nameof(file));
}
using var stream = file.GetStream();
SKTypeface tf;
if (stream.CanSeek && stream.Length <= int.MaxValue)
{
var size = (int)stream.Length;
using var data = SKData.Create(size);
stream.Read(new Span <byte>((void *)data.Data, size));
tf = SKTypeface.FromData(data, 0);
}
else
{
using var data = SKData.Create(stream);
tf = SKTypeface.FromData(data, 0);
}
familyName = tf.FamilyName;
return(_dic.TryAdd(tf.FamilyName, tf));
}
public static byte[] GenerateCodePng(string Text, int Width, int Height)
{
BarcodeWriterPixelData Writer = new BarcodeWriterPixelData()
{
Format = BarcodeFormat.QR_CODE,
Options = new QrCodeEncodingOptions()
{
Width = Width,
Height = Height
}
};
PixelData QrCode = Writer.Write(Text);
Width = QrCode.Width;
Height = QrCode.Height;
int Size = Width * Height << 2;
using (SKData Data = SKData.Create(Size))
{
Marshal.Copy(QrCode.Pixels, 0, Data.Data, Size);
using (SKImage Result = SKImage.FromPixels(new SKImageInfo(Width, Height, SKColorType.Bgra8888), Data, Width << 2))
{
using (SKData Encoded = Result.Encode(SKEncodedImageFormat.Png, 100))
{
return(Encoded.ToArray());
}
}
}
}
public void EmptyAndZeroLengthSameObject()
{
var empty = SKData.Empty;
var zero = SKData.Create(0);
Assert.Same(empty, zero);
}
public void DataCanBeCreatedFromNonASCIIFile()
{
var data = SKData.Create(Path.Combine(PathToImages, "上田雅美.jpg"));
Assert.NotNull(data);
Assert.True(data.Size > 0);
}
public unsafe void EncodeReturnTheSameInstanceIfItWasUsedToConstruct()
{
var released = false;
var bytes = File.ReadAllBytes(Path.Combine(PathToImages, "baboon.jpg"));
fixed(byte *b = bytes)
{
var input = SKData.Create((IntPtr)b, bytes.Length, (_, __) => released = true);
var image = SKImage.FromEncodedData(input);
var result = image.Encode();
Assert.Same(input, result);
Assert.Equal(3, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
image.Dispose();
Assert.Equal(1, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
input.Dispose();
Assert.True(released, "Data was not disposed.");
}
}
public unsafe void DataInstanceIsCorrectlyDisposedWhenPassed()
{
var released = false;
var bytes = File.ReadAllBytes(Path.Combine(PathToImages, "baboon.jpg"));
fixed(byte *b = bytes)
{
var input = SKData.Create((IntPtr)b, bytes.Length, (_, __) => released = true);
Assert.Equal(1, input.GetReferenceCount());
var image = SKImage.FromEncodedData(input);
Assert.Equal(3, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
image.Dispose();
Assert.Equal(1, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
input.Dispose();
Assert.True(released, "Data was not disposed.");
}
}
public T Decode(Stream stream, ImageCodecSettings settings = null)
{
using (SKData data = SKData.Create(stream))
{
SKCodec codec = SKCodec.Create(data);
var format = codec.EncodedFormat;
var info = codec.Info;
SKImageInfo decInfo = new SKImageInfo
{
ColorType = info.ColorType,
Height = info.Height,
Width = info.Width
};
byte[] buffer = new byte[info.Width * info.Height * 4];
GCHandle hData = GCHandle.Alloc(buffer, GCHandleType.Pinned);
var result = codec.GetPixels(decInfo, hData.AddrOfPinnedObject());
if (hData.IsAllocated)
{
hData.Free();
}
IPixelMap pixMap = new PixelMap();
return((T)pixMap);
}
}
public async Task EnsureMultithreadingDoesNotThrow(int iterations)
{
var imagePath = Path.Combine(PathToImages, "baboon.jpg");
var tasks = new Task[iterations];
for (var i = 0; i < iterations; i++)
{
var task = new Task(() =>
{
using (var stream = File.OpenRead(imagePath))
using (var data = SKData.Create(stream))
using (var codec = SKCodec.Create(data))
{
var info = new SKImageInfo(codec.Info.Width, codec.Info.Height);
using (var image = SKBitmap.Decode(codec, info))
{
var img = new byte[image.Height, image.Width];
}
}
});
tasks[i] = task;
task.Start();
}
await Task.WhenAll(tasks);
}
public void DecodingWithDataAndDrawingOnGPUCreatesCorrectImage()
{
var info = new SKImageInfo(120, 120);
var path = Path.Combine(PathToImages, "vimeo_icon_dark.png");
using (var ctx = CreateGlContext())
{
ctx.MakeCurrent();
using (var grContext = GRContext.CreateGl())
using (var surface = SKSurface.Create(grContext, true, info))
{
var canvas = surface.Canvas;
canvas.Clear(SKColors.Crimson);
using (var data = SKData.Create(path))
using (var image = SKImage.FromEncodedData(data))
{
canvas.DrawImage(image, 0, 0);
}
using (var bmp = new SKBitmap(info))
{
surface.ReadPixels(info, bmp.GetPixels(), info.RowBytes, 0, 0);
Assert.Equal(SKColors.Crimson, bmp.GetPixel(3, 3));
Assert.Equal(SKColors.Crimson, bmp.GetPixel(70, 50));
Assert.Equal(new SKColor(23, 35, 34), bmp.GetPixel(40, 40));
}
}
}
}
public static bool CompareBitmaps(Stream?bitmapStream1, Stream?bitmapStream2, int allowedColorDistance = 0, double proportionCorrect = 1)
{
// The bitmaps in WPF can slightly differ from test to test. No idea why. So introduced proportion correct.
long trueCount = 0;
long falseCount = 0;
if (bitmapStream1 == null && bitmapStream2 == null)
{
return(true);
}
if (bitmapStream1 == null || bitmapStream2 == null)
{
return(false);
}
bitmapStream1.Position = 0;
bitmapStream2.Position = 0;
using var skData1 = SKData.Create(bitmapStream1);
var bitmap1 = SKBitmap.FromImage(SKImage.FromEncodedData(skData1));
using var skData2 = SKData.Create(bitmapStream2);
var bitmap2 = SKBitmap.FromImage(SKImage.FromEncodedData(skData2));
if (bitmap1.Width != bitmap2.Width || bitmap1.Height != bitmap2.Height)
{
return(false);
}
for (var x = 0; x < bitmap1.Width; x++)
{
for (var y = 0; y < bitmap1.Height; y++)
{
var color1 = bitmap1.GetPixel(x, y);
var color2 = bitmap2.GetPixel(x, y);
if (color1 == color2)
{
trueCount++;
}
else
{
if (CompareColors(color1, color2, allowedColorDistance))
{
trueCount++;
}
else
{
falseCount++;
}
}
}
}
var proportion = (double)(trueCount) / (trueCount + falseCount);
return(proportionCorrect <= proportion);
}
/// <summary>
/// Encode image to stream.
/// </summary>
/// <param name="image">Image to be encoded.</param>
/// <param name="stream">Stream to which to encode.</param>
public void Encode(Image image, Stream stream)
{
var data = SKData.Create(image.ImageData, image.Size);
var img = SKImage.FromPixelData(SKImageInfo.Empty, data, image.Stride);
var jpeg = img.Encode(SKEncodedImageFormat.Jpeg, this.QualityLevel);
jpeg.SaveTo(stream);
}
public void CanCreateFromNonSeekable()
{
using var stream = File.OpenRead(Path.Combine(PathToImages, "baboon.png"));
using var nonSeekable = new NonSeekableReadOnlyStream(stream);
using var data = SKData.Create(nonSeekable);
Assert.NotNull(data);
}
/// <summary>
/// Encode image to stream.
/// </summary>
/// <param name="image">Image to be encoded.</param>
/// <param name="stream">Stream to which to encode.</param>
public void Encode(Image image, Stream stream)
{
var data = SKData.Create(image.ImageData, image.Size);
var img = SKImage.FromPixelData(SKImageInfo.Empty, data, image.Stride);
var png = img.Encode(SKEncodedImageFormat.Png, 100);
png.SaveTo(stream);
}
public unsafe void FromDataReturnsDifferentObject()
{
using var data = SKData.Create(Path.Combine(PathToFonts, "Roboto2-Regular_NoEmbed.ttf"));
using var tf1 = SKTypeface.FromData(data);
using var tf2 = SKTypeface.FromData(data);
Assert.NotSame(tf1, tf2);
}
public void ToRasterImageReturnsSameRaster()
{
using var data = SKData.Create(Path.Combine(PathToImages, "baboon.jpg"));
using var image = SKImage.FromEncodedData(data);
Assert.True(image.IsLazyGenerated);
Assert.Null(image.PeekPixels());
Assert.Equal(image, image.ToRasterImage());
}
public void DataCanBeCreatedFromManagedStream()
{
using var managed = File.OpenRead(Path.Combine(PathToImages, "baboon.jpg"));
using var stream = new SKManagedStream(managed);
using var data = SKData.Create(stream);
Assert.NotNull(data);
Assert.True(data.Size > 0);
}
public unsafe void DataCanBeResurrectedFromImage()
{
var released = false;
var bytes = File.ReadAllBytes(Path.Combine(PathToImages, "baboon.jpg"));
var gch = GCHandle.Alloc(bytes, GCHandleType.Pinned);
using (var image = DoWork(out var dataHandle))
{
Assert.Equal(2, dataHandle.GetReferenceCount(false));
Assert.False(released, "Data was disposed too soon.");
ResurrectData(image);
}
Assert.True(released, "Data was not disposed.");
gch.Free();
SKImage DoWork(out IntPtr handle)
{
var input = SKData.Create(gch.AddrOfPinnedObject(), bytes.Length, (_, __) => released = true);
handle = input.Handle;
var img = SKImage.FromEncodedData(input);
Assert.Equal(3, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
var result = img.Encode();
Assert.Same(input, result);
Assert.Equal(3, input.GetReferenceCount());
Assert.False(released, "Data was disposed too soon.");
result.Dispose();
Assert.Equal(2, handle.GetReferenceCount(false));
Assert.False(released, "Data was disposed too soon.");
return(img);
}
void ResurrectData(SKImage img)
{
var encoded = img.EncodedData;
Assert.NotNull(encoded);
Assert.Equal(3, encoded.GetReferenceCount());
var handle = encoded.Handle;
encoded.Dispose();
Assert.Equal(2, handle.GetReferenceCount(false));
Assert.False(released, "Data was disposed too soon.");
}
}
/// <summary>
/// Converts a base64 string to a SKImage, using minimal suppression via JPEG conversion
/// <param name="base64">The base64 string being converted.</param>
/// </summary>
public static SKImage Base64ToSKImage(string base64)
{
var data = Convert.FromBase64String(base64);
var stream = new MemoryStream(data);
var skData = SKData.Create(stream);
stream.Dispose();
return(SKImage.FromEncodedData(skData));
}
public BlurFace(string file, int retryAttempts, int nextRetryDelay, List <RestrictedFaceArea> hiddenRects, int jpegQuality)
{
dtStart = DateTime.Now;
if (retryAttempts < 1)
{
retryAttempts = 1;
}
if (nextRetryDelay < 100)
{
nextRetryDelay = 100;
}
if (String.IsNullOrEmpty(file))
{
bytes = null;
}
else
{
bytes = null;
if (File.Exists(file))
{
bool fileIsReady = false;
FileStream fileStream = null;
try
{
do
{
try { fileStream = File.OpenRead(file); fileIsReady = true; }
catch (IOException exc) { Console.WriteLine("Ooops"); }
retryAttempts--;
if (!fileIsReady)
{
Thread.Sleep(nextRetryDelay);
}
}while (!fileIsReady && retryAttempts > 0);
if (fileStream != null)
{
fileStream.Position = 0;
using (SKData data = SKData.Create(fileStream))
using (SKImage image = SKImage.FromEncodedData(data))
{
if (image != null)
{
Process(image, hiddenRects, jpegQuality);
}
}
}
}
catch (Exception exc)
{
}
fileStream = null;
}
}
}
public void DataCanBeCreatedFromStream()
{
using var stream = new SKFileStream(Path.Combine(PathToImages, "baboon.jpg"));
Assert.True(stream.IsValid);
using var data = SKData.Create(stream);
Assert.NotNull(data);
Assert.True(data.Size > 0);
}
public unsafe void FromDataReturnsDifferentObject()
{
var fonts = SKFontManager.Default;
using var data = SKData.Create(Path.Combine(PathToFonts, "Roboto2-Regular_NoEmbed.ttf"));
using var tf1 = fonts.CreateTypeface(data);
using var tf2 = fonts.CreateTypeface(data);
Assert.NotSame(tf1, tf2);
}
public static SKImage ConvertPixelsToImage(byte[] data, int width, int height)
{
SKImage img;
using (var ms = new MemoryStream(data)) {
SKImageInfo ii = new SKImageInfo(width, height);
SKData sKData = SKData.Create(ms);
img = SKImage.FromPixels(ii, sKData);
}
return(img);
}
public void IccToXyzIsCorrect()
{
var path = Path.Combine(PathToImages, "AdobeRGB1998.icc");
using var data = SKData.Create(path);
using var icc = SKColorSpaceIccProfile.Create(data);
var xyz = icc.ToColorSpaceXyz();
Assert.Equal(SKColorSpaceXyz.AdobeRgb, xyz);
}
public void TestLazyImage()
{
var data = SKData.Create(Path.Combine(PathToImages, "baboon.jpg"));
Assert.NotNull(data);
var image = SKImage.FromEncodedData(data);
Assert.NotNull(image);
Assert.True(image.IsLazyGenerated);
}
public void NoDelegateDataCanBeCreated()
{
var memory = Marshal.AllocCoTaskMem(10);
using (var data = SKData.Create(memory, 10))
{
Assert.Equal(memory, data.Data);
Assert.Equal(10, data.Size);
}
Marshal.FreeCoTaskMem(memory);
}
public void IccCanBeConstructedFromData()
{
var path = Path.Combine(PathToImages, "AdobeRGB1998.icc");
using var data = SKData.Create(path);
using var icc = SKColorSpaceIccProfile.Create(data);
Assert.NotNull(icc);
Assert.NotEqual(IntPtr.Zero, icc.Buffer);
Assert.Equal(data.Size, icc.Size);
}
public void CanDecodeData(string image)
{
var path = Path.Combine(PathToImages, image);
using var data = SKData.Create(path);
Assert.NotNull(data);
using var codec = SKCodec.Create(data);
Assert.NotNull(codec);
Assert.Equal(SKCodecResult.Success, codec.GetPixels(out var pixels));
Assert.NotEmpty(pixels);
}