private void BulkVectorConvert <TPixel>(BufferSpan <TPixel> destination, BufferSpan <TPixel> background, BufferSpan <TPixel> source, BufferSpan <float> amount)
where TPixel : struct, IPixel <TPixel>
{
Guard.MustBeGreaterThanOrEqualTo(background.Length, destination.Length, nameof(background.Length));
Guard.MustBeGreaterThanOrEqualTo(source.Length, destination.Length, nameof(source.Length));
Guard.MustBeGreaterThanOrEqualTo(amount.Length, destination.Length, nameof(amount.Length));
using (Buffer <Vector4> buffer = new Buffer <Vector4>(destination.Length * 3))
{
BufferSpan <Vector4> destinationSpan = buffer.Slice(0, destination.Length);
BufferSpan <Vector4> backgroundSpan = buffer.Slice(destination.Length, destination.Length);
BufferSpan <Vector4> sourceSpan = buffer.Slice(destination.Length * 2, destination.Length);
PixelOperations <TPixel> .Instance.ToVector4(background, backgroundSpan, destination.Length);
PixelOperations <TPixel> .Instance.ToVector4(source, sourceSpan, destination.Length);
for (int i = 0; i < destination.Length; i++)
{
destinationSpan[i] = PorterDuffFunctions.NormalBlendFunction(backgroundSpan[i], sourceSpan[i], amount[i]);
}
PixelOperations <TPixel> .Instance.PackFromVector4(destinationSpan, destination, destination.Length);
}
}
/// <inheritdoc />
internal override void Apply(float[] scanlineBuffer, int scanlineWidth, int offset, int x, int y)
{
Guard.MustBeGreaterThanOrEqualTo(scanlineBuffer.Length, offset + scanlineWidth, nameof(scanlineWidth));
using (Buffer <float> buffer = new Buffer <float>(scanlineBuffer))
{
BufferSpan <float> slice = buffer.Slice(offset);
for (int xPos = 0; xPos < scanlineWidth; xPos++)
{
int targetX = xPos + x;
int targetY = y;
float opacity = slice[xPos];
if (opacity > Constants.Epsilon)
{
Vector4 backgroundVector = this.Target[targetX, targetY].ToVector4();
Vector4 sourceVector = this.colorVector;
Vector4 finalColor = Vector4BlendTransforms.PremultipliedLerp(backgroundVector, sourceVector, opacity);
TColor packed = default(TColor);
packed.PackFromVector4(finalColor);
this.Target[targetX, targetY] = packed;
}
}
}
}
public void StandardFrame()
{
// act
var req = new FeigRequest {
Address = 0x12, Command = FeigCommand.ReadConfiguration, Data = BufferSpan.From(0x07),
};
// assert
Check.That(req.Address).IsEqualTo(0x12);
Check.That(req.Command).IsEqualTo(FeigCommand.ReadConfiguration);
Check.That(req.Data.Buffer).ContainsExactly(0x07);
// act
var frame = req.ToBufferSpan();
// assert
Check.That(frame.ToArray())
.ContainsExactly(
0x06,
0x12,
0x80,
0x07,
0xe5,
0x80
);
Check.That(req.ToString()).IsEqualTo("Address: 18, Command: ReadConfiguration, Data: 07");
}
public void AdvancedResponse_GetSoftwareVersion_FrameError()
{
// act
var data = new Byte[] {
/*0x02*/
0xFF,
0x00,
0x0F,
0x00,
0x65,
0x00,
0x03,
0x03,
0x00,
0x44,
0x53,
0x0D,
0x30,
0x74,
0x68,
};
var span = BufferSpan.From(data, 0, data.Length);
var result = FeigResponse.TryParse(span, FeigProtocol.Advanced);
// assert
Check.That(result.Status).IsEqualTo(FeigParseStatus.FrameError);
Check.That(result.Response).IsNull();
}
/// <inheritdoc/>
protected override void OnApply(ImageBase <TPixel> source, Rectangle sourceRectangle)
{
int startY = sourceRectangle.Y;
int endY = sourceRectangle.Bottom;
int startX = sourceRectangle.X;
int endX = sourceRectangle.Right;
TPixel glowColor = this.GlowColor;
Vector2 centre = Rectangle.Center(sourceRectangle).ToVector2();
float maxDistance = this.Radius > 0 ? MathF.Min(this.Radius, sourceRectangle.Width * .5F) : sourceRectangle.Width * .5F;
// Align start/end positions.
int minX = Math.Max(0, startX);
int maxX = Math.Min(source.Width, endX);
int minY = Math.Max(0, startY);
int maxY = Math.Min(source.Height, endY);
// Reset offset if necessary.
if (minX > 0)
{
startX = 0;
}
if (minY > 0)
{
startY = 0;
}
int width = maxX - minX;
using (Buffer <TPixel> rowColors = new Buffer <TPixel>(width))
using (PixelAccessor <TPixel> sourcePixels = source.Lock())
{
for (int i = 0; i < width; i++)
{
rowColors[i] = glowColor;
}
Parallel.For(
minY,
maxY,
this.ParallelOptions,
y =>
{
using (Buffer <float> amounts = new Buffer <float>(width))
{
int offsetY = y - startY;
int offsetX = minX - startX;
for (int i = 0; i < width; i++)
{
float distance = Vector2.Distance(centre, new Vector2(i + offsetX, offsetY));
amounts[i] = (this.options.BlendPercentage * (1 - (.95F * (distance / maxDistance)))).Clamp(0, 1);
}
BufferSpan <TPixel> destination = sourcePixels.GetRowSpan(offsetY).Slice(offsetX, width);
this.blender.Blend(destination, destination, rowColors, amounts);
}
});
}
}
public override Collection <VSTF.TextBounds> GetNormalizedTextBounds(HexBufferSpan bufferPosition, HexSpanSelectionFlags flags)
{
if (!IsValid)
{
throw new ObjectDisposedException(nameof(HexFormattedLineImpl));
}
var pos = BufferSpan.Intersection(bufferPosition);
var list = new List <VSTF.TextBounds>();
if (pos is null)
{
return(new Collection <VSTF.TextBounds>(list));
}
foreach (var info in bufferLine.GetSpans(pos.Value, flags))
{
var valuesSpan = TryGetNormalizedTextBounds(info.TextSpan);
if (!(valuesSpan is null))
{
list.Add(valuesSpan.Value);
}
}
return(new Collection <VSTF.TextBounds>(list));
}
private BufferSpan _ToAdvancedProtocolFrame()
{
var frameLength = 7 + Data.Count;
var frame = new Byte[frameLength];
frame[0] = 0x02;
frame[1] = (Byte)(frameLength >> 8);
frame[2] = (Byte)(frameLength & 0xff);
frame[3] = Address;
frame[4] = (Byte)Command;
Buffer.BlockCopy(
Data.Buffer,
Data.Offset,
frame,
5,
Data.Count
);
var crc = FeigChecksum.Calculate(BufferSpan.From(frame, 0, frameLength - 2));
frame[frameLength - 2] = (Byte)(crc & 0xff);
frame[frameLength - 1] = (Byte)(crc >> 8);
return(BufferSpan.From(frame, frameLength));
}
public void MultiplyFunction_Blender_Bulk <TPixel>(TestPixel <TPixel> back, TestPixel <TPixel> source, float amount, TestPixel <TPixel> expected)
where TPixel : struct, IPixel <TPixel>
{
BufferSpan <TPixel> dest = new BufferSpan <TPixel>(new TPixel[1]);
new DefaultMultiplyPixelBlender <TPixel>().Blend(dest, back.AsSpan(), source.AsSpan(), AsSpan(amount));
VectorAssert.Equal(expected, dest[0], 2);
}
public void UseCase_123456789()
{
var buffer = Encoding.UTF8.GetBytes("123456789");
var crc = FeigChecksum.Calculate(BufferSpan.From(buffer));
Check.That(crc).IsEqualTo(0x6F91);
}
/// <summary>
/// Gets column spans in column order
/// </summary>
/// <param name="span">Buffer span</param>
/// <param name="flags">Flags</param>
/// <returns></returns>
public IEnumerable <TextAndHexSpan> GetSpans(HexBufferSpan span, HexSpanSelectionFlags flags)
{
if (span.IsDefault)
{
throw new ArgumentException();
}
if (span.Buffer != Buffer)
{
throw new ArgumentException();
}
var overlapSpan = BufferSpan.Overlap(span);
if (overlapSpan == null)
{
yield break;
}
foreach (var column in ColumnOrder)
{
switch (column)
{
case HexColumnType.Offset:
if ((flags & HexSpanSelectionFlags.Offset) != 0 && IsOffsetColumnPresent)
{
if (BufferSpan.Contains(overlapSpan.Value))
{
yield return(new TextAndHexSpan(GetOffsetSpan(), BufferSpan));
}
}
break;
case HexColumnType.Values:
if ((flags & HexSpanSelectionFlags.Values) != 0)
{
foreach (var info in GetValuesSpans(overlapSpan.Value, flags))
{
yield return(info);
}
}
break;
case HexColumnType.Ascii:
if ((flags & HexSpanSelectionFlags.Ascii) != 0)
{
foreach (var info in GetAsciiSpans(overlapSpan.Value, flags))
{
yield return(info);
}
}
break;
default:
throw new InvalidOperationException();
}
}
}
public void Write(int length, int start, int index)
{
Foo[] a = Foo.CreateArray(length);
BufferSpan <Foo> span = new BufferSpan <Foo>(a, start);
span[index] = new Foo(666, 666);
Assert.Equal(new Foo(666, 666), a[start + index]);
}
public void Read(int length, int start, int index)
{
Foo[] a = Foo.CreateArray(length);
BufferSpan <Foo> span = new BufferSpan <Foo>(a, start);
Foo element = span[index];
Assert.Equal(a[start + index], element);
}
public void AsBytes_Read(int length, int start, int index, int byteOffset)
{
Foo[] a = Foo.CreateArray(length);
BufferSpan <Foo> span = new BufferSpan <Foo>(a, start);
BufferSpan <byte> bytes = span.AsBytes();
byte actual = bytes[index * Unsafe.SizeOf <Foo>() + byteOffset];
ref byte baseRef = ref Unsafe.As <Foo, byte>(ref a[0]);
public void ToString_SingleItems()
{
var transponders = new[] {
new FeigTransponder {
TransponderType = FeigTransponderType.ISO14443A, Identifier = BufferSpan.From(0x11, 0x22, 0x33),
},
};
Check.That(FeigTransponder.ToString(transponders)).IsEqualTo("{ Type: ISO14443A, ID: 11-22-33 }");
}
/// <summary>
/// Processes the de-filtered scanline filling the image pixel data
/// </summary>
/// <typeparam name="TPixel">The pixel format.</typeparam>
/// <param name="defilteredScanline">The de-filtered scanline</param>
/// <param name="pixels">The image pixels</param>
private void ProcessDefilteredScanline <TPixel>(byte[] defilteredScanline, PixelAccessor <TPixel> pixels)
where TPixel : struct, IPixel <TPixel>
{
TPixel color = default(TPixel);
BufferSpan <TPixel> pixelBuffer = pixels.GetRowSpan(this.currentRow);
BufferSpan <byte> scanlineBuffer = new BufferSpan <byte>(defilteredScanline, 1);
switch (this.PngColorType)
{
case PngColorType.Grayscale:
int factor = 255 / ((int)Math.Pow(2, this.header.BitDepth) - 1);
byte[] newScanline1 = ToArrayByBitsLength(defilteredScanline, this.bytesPerScanline, this.header.BitDepth);
for (int x = 0; x < this.header.Width; x++)
{
byte intensity = (byte)(newScanline1[x] * factor);
color.PackFromBytes(intensity, intensity, intensity, 255);
pixels[x, this.currentRow] = color;
}
break;
case PngColorType.GrayscaleWithAlpha:
for (int x = 0; x < this.header.Width; x++)
{
int offset = 1 + (x * this.bytesPerPixel);
byte intensity = defilteredScanline[offset];
byte alpha = defilteredScanline[offset + this.bytesPerSample];
color.PackFromBytes(intensity, intensity, intensity, alpha);
pixels[x, this.currentRow] = color;
}
break;
case PngColorType.Palette:
this.ProcessScanlineFromPalette(defilteredScanline, pixels);
break;
case PngColorType.Rgb:
PixelOperations <TPixel> .Instance.PackFromXyzBytes(scanlineBuffer, pixelBuffer, this.header.Width);
break;
case PngColorType.RgbWithAlpha:
PixelOperations <TPixel> .Instance.PackFromXyzwBytes(scanlineBuffer, pixelBuffer, this.header.Width);
break;
}
}
public void Construction()
{
var transponder = new FeigTransponder {
TransponderType = FeigTransponderType.ISO14443A, Identifier = BufferSpan.From(0x11, 0x22, 0x33),
};
Check.That(transponder.TransponderType).IsEqualTo(FeigTransponderType.ISO14443A);
Check.That(transponder.Identifier.ToArray()).ContainsExactly(0x11, 0x22, 0x33);
Check.That(transponder.ToString()).IsEqualTo("Type: ISO14443A, ID: 11-22-33");
}
public void ReceivedDataIgnored()
{
var settingsA = new SerialTransportSettings {
PortName = "COMA"
};
var logger = LoggerFactory.Create(
builder => {
builder.SetMinimumLevel(LogLevel.Trace);
builder.AddSimpleConsole();
}
)
.CreateLogger("Test");
using (var transportA = new DefaultFeigTransport(settingsA, logger))
{
var settings = new SerialTransportSettings {
PortName = "COMB",
Baud = 38400,
DataBits = 8,
Parity = Parity.Even,
StopBits = StopBits.One,
Handshake = Handshake.None,
};
using (var transportB = Transport.Create(settings))
{
transportA.Open();
transportB.Open();
transportB.Send(
BufferSpan.From(
0x02,
0x00,
0x0f,
0x00,
0x65,
0x00,
0x03,
0x03,
0x00,
0x44,
0x53,
0x0d,
0x30,
0x74,
0x69
)
);
Thread.Sleep(2000);
}
}
}
public void GetRowSpanXY(int width, int height, int x, int y)
{
using (PinnedImageBuffer <Foo> buffer = new PinnedImageBuffer <Foo>(width, height))
{
BufferSpan <Foo> span = buffer.GetRowSpan(x, y);
Assert.Equal(width * y + x, span.Start);
Assert.Equal(width - x, span.Length);
Assert.Equal(buffer.Pointer + sizeof(Foo) * (width * y + x), span.PointerAtOffset);
}
}
public void CastToSpan(int bufferLength)
{
using (PinnedBuffer <Foo> buffer = new PinnedBuffer <Foo>(bufferLength))
{
BufferSpan <Foo> span = buffer;
Assert.Equal(buffer.Array, span.Array);
Assert.Equal(0, span.Start);
Assert.Equal(buffer.Pointer, span.PointerAtOffset);
Assert.Equal(span.Length, bufferLength);
}
}
public void Basic()
{
Foo[] array = Foo.CreateArray(3);
// Act:
BufferSpan <Foo> span = new BufferSpan <Foo>(array);
// Assert:
Assert.Equal(array, span.Array);
Assert.Equal(3, span.Length);
Assert.SameRefs(ref array[0], ref span.DangerousGetPinnableReference());
}
public void Span()
{
using (PinnedBuffer <Foo> buffer = new PinnedBuffer <Foo>(42))
{
BufferSpan <Foo> span = buffer.Span;
Assert.Equal(buffer.Array, span.Array);
Assert.Equal(0, span.Start);
Assert.Equal(buffer.Pointer, span.PointerAtOffset);
Assert.Equal(span.Length, 42);
}
}
private void BulkPixelConvert <TPixel>(BufferSpan <TPixel> destination, BufferSpan <TPixel> background, BufferSpan <TPixel> source, BufferSpan <float> amount)
where TPixel : struct, IPixel <TPixel>
{
Guard.MustBeGreaterThanOrEqualTo(destination.Length, background.Length, nameof(destination));
Guard.MustBeGreaterThanOrEqualTo(source.Length, background.Length, nameof(destination));
Guard.MustBeGreaterThanOrEqualTo(amount.Length, background.Length, nameof(destination));
for (int i = 0; i < destination.Length; i++)
{
destination[i] = PorterDuffFunctions <TPixel> .NormalBlendFunction(destination[i], source[i], amount[i]);
}
}
public void WithStartAndLength(int bufferLength, int start, int spanLength)
{
using (PinnedBuffer <Foo> buffer = new PinnedBuffer <Foo>(bufferLength))
{
BufferSpan <Foo> span = buffer.Slice(start, spanLength);
Assert.Equal(buffer.Array, span.Array);
Assert.Equal(start, span.Start);
Assert.Equal(buffer.Pointer + start * Unsafe.SizeOf <Foo>(), span.PointerAtOffset);
Assert.Equal(span.Length, spanLength);
}
}
/// <inheritdoc/>
protected override void OnApply(ImageBase <TPixel> source, Rectangle sourceRectangle)
{
int startY = sourceRectangle.Y;
int endY = sourceRectangle.Bottom;
int startX = sourceRectangle.X;
int endX = sourceRectangle.Right;
// Align start/end positions.
int minX = Math.Max(0, startX);
int maxX = Math.Min(source.Width, endX);
int minY = Math.Max(0, startY);
int maxY = Math.Min(source.Height, endY);
// Reset offset if necessary.
if (minX > 0)
{
startX = 0;
}
if (minY > 0)
{
startY = 0;
}
int width = maxX - minX;
using (Buffer <TPixel> colors = new Buffer <TPixel>(width))
using (Buffer <float> amount = new Buffer <float>(width))
using (PixelAccessor <TPixel> sourcePixels = source.Lock())
{
for (int i = 0; i < width; i++)
{
colors[i] = this.Value;
amount[i] = this.options.BlendPercentage;
}
PixelBlender <TPixel> blender = PixelOperations <TPixel> .Instance.GetPixelBlender(this.options.BlenderMode);
Parallel.For(
minY,
maxY,
this.ParallelOptions,
y =>
{
int offsetY = y - startY;
BufferSpan <TPixel> destination = sourcePixels.GetRowSpan(offsetY).Slice(minX - startX, width);
// this switched color & destination in the 2nd and 3rd places because we are applying the target colour under the current one
blender.Blend(destination, colors, destination, amount);
});
}
}
public void AsBytes()
{
Foo[] fooz = { new Foo(1, 2), new Foo(3, 4), new Foo(5, 6) };
using (PinnedBuffer <Foo> colorBuf = new PinnedBuffer <Foo>(fooz))
{
BufferSpan <Foo> orig = colorBuf.Slice(1);
BufferSpan <byte> asBytes = (BufferSpan <byte>)orig;
Assert.Equal(asBytes.Start, sizeof(Foo));
Assert.Equal(orig.PointerAtOffset, asBytes.PointerAtOffset);
}
}
public bool TranslateTo(ITextSnapshot visualSnapshot, ITextSnapshot editSnapshot)
{
if (disposed)
{
throw new ObjectDisposedException(nameof(PhysicalLine));
}
var newSpan = BufferSpan.TranslateTo(editSnapshot, SpanTrackingMode.EdgeExclusive);
bool hasChanges = HasChanges(BufferSpan.Snapshot, newSpan.Snapshot);
BufferSpan = newSpan;
return(hasChanges);
}
private async Task SendAsyncAwaited(BufferSpan span, bool endOfMessage)
{
await ReadyToSend;
var flushSends = endOfMessage || MaxOutstandingSendsReached;
Send(GetSegmentFromSpan(span), flushSends);
if (flushSends && !endOfMessage)
{
await ReadyToSend;
}
}
/// <inheritdoc />
internal override void Apply(BufferSpan <float> scanline, int x, int y)
{
BufferSpan <TPixel> destinationRow = this.Target.GetRowSpan(x, y).Slice(0, scanline.Length);
using (Buffer <float> amountBuffer = new Buffer <float>(scanline.Length))
{
for (int i = 0; i < scanline.Length; i++)
{
amountBuffer[i] = scanline[i] * this.Options.BlendPercentage;
}
this.Blender.Blend(destinationRow, destinationRow, this.Colors, amountBuffer);
}
}
public void Basic()
{
Foo[] array = Foo.CreateArray(3);
fixed(Foo *p = array)
{
// Act:
BufferSpan <Foo> span = new BufferSpan <Foo>(array, p);
// Assert:
Assert.Equal(array, span.Array);
Assert.Equal((IntPtr)p, span.PointerAtOffset);
Assert.Equal(3, span.Length);
}
}
public void WithStartAndLength()
{
Foo[] array = Foo.CreateArray(10);
int start = 2;
int length = 3;
// Act:
BufferSpan <Foo> span = new BufferSpan <Foo>(array, start, length);
// Assert:
Assert.Equal(array, span.Array);
Assert.Equal(start, span.Start);
Assert.SameRefs(ref array[start], ref span.DangerousGetPinnableReference());
Assert.Equal(length, span.Length);
}