Robin Krom
4 years ago
committed by
GitHub
GitHub
89 changed files with 768 additions and 940 deletions
@ -0,0 +1,12 @@ |
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using System.Runtime.CompilerServices; |
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namespace System; |
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#if !NET6_0_OR_GREATER
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public static class StringCompatibilityExtensions |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool Contains(this string str, char search) => |
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str.Contains(search.ToString()); |
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} |
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#endif
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@ -0,0 +1,49 @@ |
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using System; |
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using System.Globalization; |
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using System.Runtime.CompilerServices; |
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namespace Avalonia.Utilities |
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{ |
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public static class SpanHelpers |
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{ |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool TryParseUInt(this ReadOnlySpan<char> span, NumberStyles style, IFormatProvider provider, out uint value) |
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{ |
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#if NETSTANDARD2_0
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return uint.TryParse(span.ToString(), style, provider, out value); |
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#else
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return uint.TryParse(span, style, provider, out value); |
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#endif
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool TryParseInt(this ReadOnlySpan<char> span, out int value) |
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{ |
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#if NETSTANDARD2_0
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return int.TryParse(span.ToString(), out value); |
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#else
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return int.TryParse(span, out value); |
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#endif
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool TryParseDouble(this ReadOnlySpan<char> span, NumberStyles style, IFormatProvider provider, out double value) |
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{ |
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#if NETSTANDARD2_0
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return double.TryParse(span.ToString(), style, provider, out value); |
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#else
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return double.TryParse(span, style, provider, out value); |
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#endif
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} |
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[MethodImpl(MethodImplOptions.AggressiveInlining)] |
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public static bool TryParseByte(this ReadOnlySpan<char> span, NumberStyles style, IFormatProvider provider, out byte value) |
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{ |
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#if NETSTANDARD2_0
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return byte.TryParse(span.ToString(), style, provider, out value); |
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#else
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return byte.TryParse(span, style, provider, out value); |
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#endif
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} |
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} |
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} |
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@ -1,53 +0,0 @@ |
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using System; |
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using System.Globalization; |
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using Avalonia.Data.Converters; |
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namespace Avalonia.Controls.Primitives.Converters |
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{ |
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/// <summary>
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/// Gets the third <see cref="ColorComponent"/> corresponding with a given
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/// <see cref="ColorSpectrumComponents"/> that represents the other two components.
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/// </summary>
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/// <remarks>
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/// This is a highly-specialized converter for the color picker.
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/// </remarks>
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public class ThirdComponentConverter : IValueConverter |
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{ |
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/// <inheritdoc/>
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public object? Convert( |
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object? value, |
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Type targetType, |
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object? parameter, |
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CultureInfo culture) |
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{ |
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if (value is ColorSpectrumComponents components) |
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{ |
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// Note: Alpha is not relevant here
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switch (components) |
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{ |
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case ColorSpectrumComponents.HueSaturation: |
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case ColorSpectrumComponents.SaturationHue: |
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return (ColorComponent)HsvComponent.Value; |
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case ColorSpectrumComponents.HueValue: |
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case ColorSpectrumComponents.ValueHue: |
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return (ColorComponent)HsvComponent.Saturation; |
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case ColorSpectrumComponents.SaturationValue: |
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case ColorSpectrumComponents.ValueSaturation: |
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return (ColorComponent)HsvComponent.Hue; |
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} |
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} |
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return AvaloniaProperty.UnsetValue; |
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} |
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/// <inheritdoc/>
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public object? ConvertBack( |
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object? value, |
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Type targetType, |
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object? parameter, |
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CultureInfo culture) |
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{ |
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return AvaloniaProperty.UnsetValue; |
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} |
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} |
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} |
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@ -0,0 +1,71 @@ |
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namespace Avalonia.Controls.Primitives |
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{ |
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/// <summary>
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/// A thin wrapper over an <see cref="System.Array"/> that allows some additional list-like functionality.
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/// </summary>
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/// <remarks>
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/// This is only for internal ColorPicker-related functionality and should not be used elsewhere.
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/// It is added for performance to enjoy the simplicity of the IList.Add() method without requiring
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/// an additional copy to turn a list into an array for bitmaps.
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/// </remarks>
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/// <typeparam name="T">The type of items in the array.</typeparam>
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internal class ArrayList<T> |
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{ |
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private int _nextIndex = 0; |
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/// <summary>
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/// Initializes a new instance of the <see cref="ArrayList{T}"/> class.
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/// </summary>
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public ArrayList(int capacity) |
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{ |
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Capacity = capacity; |
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Array = new T[capacity]; |
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} |
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/// <summary>
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/// Provides access to the underlying array by index.
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/// This exists for simplification and the <see cref="Array"/> property
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/// may also be used.
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/// </summary>
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/// <param name="i">The index of the item to get or set.</param>
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/// <returns>The item at the given index.</returns>
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public T this[int i] |
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{ |
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get => Array[i]; |
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set => Array[i] = value; |
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} |
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/// <summary>
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/// Gets the underlying array.
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/// </summary>
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public T[] Array { get; private set; } |
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/// <summary>
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/// Gets the fixed capacity/size of the array.
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/// This must be set during construction.
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/// </summary>
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public int Capacity { get; private set; } |
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/// <summary>
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/// Adds the given item to the array at the next available index.
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/// WARNING: This must be used carefully and only once, in sequence.
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/// </summary>
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/// <param name="item">The item to add.</param>
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public void Add(T item) |
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{ |
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if (_nextIndex >= 0 && |
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_nextIndex < Capacity) |
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{ |
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Array[_nextIndex] = item; |
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_nextIndex++; |
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} |
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else |
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{ |
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// If necessary an exception could be thrown here
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// throw new IndexOutOfRangeException();
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} |
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return; |
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} |
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} |
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} |
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@ -0,0 +1,42 @@ |
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using Avalonia.Media; |
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using Avalonia.Media.TextFormatting; |
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using Avalonia.Utilities; |
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namespace Avalonia.Controls.Documents |
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{ |
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internal class EmbeddedControlRun : DrawableTextRun |
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{ |
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public EmbeddedControlRun(IControl control, TextRunProperties properties) |
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{ |
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Control = control; |
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Properties = properties; |
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} |
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public IControl Control { get; } |
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public override TextRunProperties? Properties { get; } |
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public override Size Size => Control.DesiredSize; |
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public override double Baseline |
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{ |
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get |
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{ |
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double baseline = Size.Height; |
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double baselineOffsetValue = Control.GetValue<double>(TextBlock.BaselineOffsetProperty); |
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if (!MathUtilities.IsZero(baselineOffsetValue)) |
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{ |
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baseline = baselineOffsetValue; |
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} |
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return -baseline; |
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} |
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} |
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public override void Draw(DrawingContext drawingContext, Point origin) |
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{ |
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//noop
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} |
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} |
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} |
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@ -1,9 +0,0 @@ |
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using System; |
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namespace Avalonia.MicroCom |
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{ |
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public interface IMicroComExceptionCallback |
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{ |
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void RaiseException(Exception e); |
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} |
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} |
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@ -1,9 +0,0 @@ |
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namespace Avalonia.MicroCom |
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{ |
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public interface IMicroComShadowContainer |
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{ |
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MicroComShadow Shadow { get; set; } |
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void OnReferencedFromNative(); |
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void OnUnreferencedFromNative(); |
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} |
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} |
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@ -1,8 +0,0 @@ |
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using System; |
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namespace Avalonia.MicroCom |
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{ |
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public interface IUnknown : IDisposable |
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{ |
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} |
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} |
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@ -1,17 +0,0 @@ |
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using System; |
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namespace Avalonia.MicroCom |
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{ |
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unsafe class LocalInterop |
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{ |
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public static unsafe void CalliStdCallvoid(void* thisObject, void* methodPtr) |
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{ |
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throw null; |
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} |
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public static unsafe int CalliStdCallint(void* thisObject, Guid* guid, IntPtr* ppv, void* methodPtr) |
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{ |
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throw null; |
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} |
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} |
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} |
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@ -1,110 +0,0 @@ |
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using System; |
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using System.Runtime.ConstrainedExecution; |
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using System.Runtime.InteropServices; |
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using System.Threading; |
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namespace Avalonia.MicroCom |
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{ |
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public unsafe class MicroComProxyBase : CriticalFinalizerObject, IUnknown |
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{ |
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private IntPtr _nativePointer; |
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private bool _ownsHandle; |
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private SynchronizationContext _synchronizationContext; |
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public IntPtr NativePointer |
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{ |
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get |
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{ |
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if (_nativePointer == IntPtr.Zero) |
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throw new ObjectDisposedException(this.GetType().FullName); |
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return _nativePointer; |
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} |
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} |
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public void*** PPV => (void***)NativePointer; |
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public MicroComProxyBase(IntPtr nativePointer, bool ownsHandle) |
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{ |
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_nativePointer = nativePointer; |
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_ownsHandle = ownsHandle; |
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_synchronizationContext = SynchronizationContext.Current; |
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if(!_ownsHandle) |
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GC.SuppressFinalize(this); |
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} |
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protected virtual int VTableSize => 3; |
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public void AddRef() |
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{ |
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LocalInterop.CalliStdCallvoid(PPV, (*PPV)[1]); |
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} |
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public void Release() |
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{ |
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LocalInterop.CalliStdCallvoid(PPV, (*PPV)[2]); |
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} |
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public int QueryInterface(Guid guid, out IntPtr ppv) |
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{ |
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IntPtr r = default; |
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var rv = LocalInterop.CalliStdCallint(PPV, &guid, &r, (*PPV)[0]); |
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ppv = r; |
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return rv; |
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} |
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public T QueryInterface<T>() where T : IUnknown |
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{ |
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var guid = MicroComRuntime.GetGuidFor(typeof(T)); |
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var rv = QueryInterface(guid, out var ppv); |
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if (rv == 0) |
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return (T)MicroComRuntime.CreateProxyFor(typeof(T), ppv, true); |
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throw new COMException("QueryInterface failed", rv); |
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} |
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public bool IsDisposed => _nativePointer == IntPtr.Zero; |
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protected virtual void Dispose(bool disposing) |
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{ |
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if(_nativePointer == IntPtr.Zero) |
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return; |
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if (_ownsHandle) |
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{ |
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Release(); |
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_ownsHandle = false; |
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} |
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_nativePointer = IntPtr.Zero; |
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GC.SuppressFinalize(this); |
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} |
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public void Dispose() => Dispose(true); |
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public bool OwnsHandle => _ownsHandle; |
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public void EnsureOwned() |
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{ |
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if (!_ownsHandle) |
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{ |
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GC.ReRegisterForFinalize(true); |
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AddRef(); |
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_ownsHandle = true; |
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} |
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} |
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private static readonly SendOrPostCallback _disposeDelegate = DisposeOnContext; |
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private static void DisposeOnContext(object state) |
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{ |
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(state as MicroComProxyBase)?.Dispose(false); |
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} |
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~MicroComProxyBase() |
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{ |
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if(!_ownsHandle) |
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return; |
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if (_synchronizationContext == null) |
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Dispose(); |
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else |
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_synchronizationContext.Post(_disposeDelegate, this); |
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} |
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} |
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} |
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@ -1,143 +0,0 @@ |
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using System; |
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using System.Collections.Concurrent; |
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using System.Runtime.InteropServices; |
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namespace Avalonia.MicroCom |
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{ |
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public static unsafe class MicroComRuntime |
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{ |
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private static ConcurrentDictionary<Type, IntPtr> _vtables = new ConcurrentDictionary<Type, IntPtr>(); |
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private static ConcurrentDictionary<Type, Func<IntPtr, bool, object>> _factories = |
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new ConcurrentDictionary<Type, Func<IntPtr, bool, object>>(); |
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private static ConcurrentDictionary<Type, Guid> _guids = new ConcurrentDictionary<Type, Guid>(); |
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private static ConcurrentDictionary<Guid, Type> _guidsToTypes = new ConcurrentDictionary<Guid, Type>(); |
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internal static readonly Guid ManagedObjectInterfaceGuid = Guid.Parse("cd7687c0-a9c2-4563-b08e-a399df50c633"); |
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static MicroComRuntime() |
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{ |
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Register(typeof(IUnknown), new Guid("00000000-0000-0000-C000-000000000046"), |
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(ppv, owns) => new MicroComProxyBase(ppv, owns)); |
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RegisterVTable(typeof(IUnknown), MicroComVtblBase.Vtable); |
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} |
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public static void RegisterVTable(Type t, IntPtr vtable) |
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{ |
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_vtables[t] = vtable; |
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} |
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public static void Register(Type t, Guid guid, Func<IntPtr, bool, object> proxyFactory) |
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{ |
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_factories[t] = proxyFactory; |
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_guids[t] = guid; |
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_guidsToTypes[guid] = t; |
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} |
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public static Guid GetGuidFor(Type type) => _guids[type]; |
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public static T CreateProxyFor<T>(void* pObject, bool ownsHandle) => (T)CreateProxyFor(typeof(T), new IntPtr(pObject), ownsHandle); |
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public static T CreateProxyFor<T>(IntPtr pObject, bool ownsHandle) => (T)CreateProxyFor(typeof(T), pObject, ownsHandle); |
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public static T CreateProxyOrNullFor<T>(void* pObject, bool ownsHandle) where T : class => |
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pObject == null ? null : (T)CreateProxyFor(typeof(T), new IntPtr(pObject), ownsHandle); |
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public static T CreateProxyOrNullFor<T>(IntPtr pObject, bool ownsHandle) where T : class => |
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pObject == IntPtr.Zero ? null : (T)CreateProxyFor(typeof(T), pObject, ownsHandle); |
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public static object CreateProxyFor(Type type, IntPtr pObject, bool ownsHandle) => _factories[type](pObject, ownsHandle); |
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public static IntPtr GetNativeIntPtr<T>(this T obj, bool owned = false) where T : IUnknown |
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=> new IntPtr(GetNativePointer(obj, owned)); |
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public static void* GetNativePointer<T>(T obj, bool owned = false) where T : IUnknown |
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{ |
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if (obj == null) |
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return null; |
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if (obj is MicroComProxyBase proxy) |
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{ |
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if(owned) |
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proxy.AddRef(); |
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return (void*)proxy.NativePointer; |
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} |
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if (obj is IMicroComShadowContainer container) |
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{ |
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container.Shadow ??= new MicroComShadow(container); |
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void* ptr = null; |
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var res = container.Shadow.GetOrCreateNativePointer(typeof(T), &ptr); |
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if (res != 0) |
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throw new COMException( |
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"Unable to create native callable wrapper for type " + typeof(T) + " for instance of type " + |
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obj.GetType(), |
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res); |
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if (owned) |
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container.Shadow.AddRef((Ccw*)ptr); |
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return ptr; |
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} |
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throw new ArgumentException("Unable to get a native pointer for " + obj); |
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} |
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public static object GetObjectFromCcw(IntPtr ccw) |
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{ |
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var ptr = (Ccw*)ccw; |
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var shadow = (MicroComShadow)GCHandle.FromIntPtr(ptr->GcShadowHandle).Target; |
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return shadow.Target; |
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} |
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public static bool IsComWrapper(IUnknown obj) => obj is MicroComProxyBase; |
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public static object TryUnwrapManagedObject(IUnknown obj) |
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{ |
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if (obj is not MicroComProxyBase proxy) |
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return null; |
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if (proxy.QueryInterface(ManagedObjectInterfaceGuid, out _) != 0) |
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return null; |
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// Successful QueryInterface always increments ref counter
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proxy.Release(); |
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return GetObjectFromCcw(proxy.NativePointer); |
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} |
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public static bool TryGetTypeForGuid(Guid guid, out Type t) => _guidsToTypes.TryGetValue(guid, out t); |
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public static bool GetVtableFor(Type type, out IntPtr ptr) => _vtables.TryGetValue(type, out ptr); |
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public static void UnhandledException(object target, Exception e) |
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{ |
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if (target is IMicroComExceptionCallback cb) |
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{ |
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try |
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{ |
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cb.RaiseException(e); |
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} |
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catch |
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{ |
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// We've tried
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} |
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} |
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} |
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public static T CloneReference<T>(this T iface) where T : IUnknown |
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{ |
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var proxy = (MicroComProxyBase)(object)iface; |
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var ownedPointer = GetNativePointer(iface, true); |
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return CreateProxyFor<T>(ownedPointer, true); |
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} |
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|
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public static T QueryInterface<T>(this IUnknown unknown) where T : IUnknown |
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{ |
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var proxy = (MicroComProxyBase)unknown; |
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return proxy.QueryInterface<T>(); |
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} |
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public static void UnsafeAddRef(this IUnknown unknown) |
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{ |
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((MicroComProxyBase)unknown).AddRef(); |
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} |
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public static void UnsafeRelease(this IUnknown unknown) |
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{ |
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((MicroComProxyBase)unknown).Release(); |
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} |
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} |
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} |
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@ -1,177 +0,0 @@ |
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using System; |
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using System.Collections.Generic; |
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using System.Runtime.InteropServices; |
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using System.Threading; |
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namespace Avalonia.MicroCom |
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{ |
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public unsafe class MicroComShadow : IDisposable |
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{ |
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private readonly object _lock = new object(); |
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private readonly Dictionary<Type, IntPtr> _shadows = new Dictionary<Type, IntPtr>(); |
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private readonly Dictionary<IntPtr, Type> _backShadows = new Dictionary<IntPtr, Type>(); |
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private GCHandle? _handle; |
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private volatile int _refCount; |
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internal IMicroComShadowContainer Target { get; } |
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internal MicroComShadow(IMicroComShadowContainer target) |
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{ |
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Target = target; |
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Target.Shadow = this; |
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} |
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internal int QueryInterface(Ccw* ccw, Guid* guid, void** ppv) |
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{ |
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if (MicroComRuntime.TryGetTypeForGuid(*guid, out var type)) |
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return QueryInterface(type, ppv); |
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else if (*guid == MicroComRuntime.ManagedObjectInterfaceGuid) |
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{ |
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ccw->RefCount++; |
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*ppv = ccw; |
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return 0; |
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} |
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else |
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return unchecked((int)0x80004002u); |
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} |
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|
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internal int QueryInterface(Type type, void** ppv) |
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{ |
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if (!type.IsInstanceOfType(Target)) |
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return unchecked((int)0x80004002u); |
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|
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var rv = GetOrCreateNativePointer(type, ppv); |
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if (rv == 0) |
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AddRef((Ccw*)*ppv); |
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return rv; |
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} |
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|
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internal int GetOrCreateNativePointer(Type type, void** ppv) |
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{ |
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if (!MicroComRuntime.GetVtableFor(type, out var vtable)) |
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return unchecked((int)0x80004002u); |
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lock (_lock) |
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{ |
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|
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if (_shadows.TryGetValue(type, out var shadow)) |
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{ |
|||
var targetCcw = (Ccw*)shadow; |
|||
AddRef(targetCcw); |
|||
*ppv = targetCcw; |
|||
return 0; |
|||
} |
|||
else |
|||
{ |
|||
var intPtr = Marshal.AllocHGlobal(Marshal.SizeOf<Ccw>()); |
|||
var targetCcw = (Ccw*)intPtr; |
|||
*targetCcw = default; |
|||
targetCcw->RefCount = 0; |
|||
targetCcw->VTable = vtable; |
|||
if (_handle == null) |
|||
_handle = GCHandle.Alloc(this); |
|||
targetCcw->GcShadowHandle = GCHandle.ToIntPtr(_handle.Value); |
|||
_shadows[type] = intPtr; |
|||
_backShadows[intPtr] = type; |
|||
*ppv = targetCcw; |
|||
|
|||
return 0; |
|||
} |
|||
} |
|||
} |
|||
|
|||
internal int AddRef(Ccw* ccw) |
|||
{ |
|||
if (Interlocked.Increment(ref _refCount) == 1) |
|||
{ |
|||
try |
|||
{ |
|||
Target.OnReferencedFromNative(); |
|||
} |
|||
catch (Exception e) |
|||
{ |
|||
MicroComRuntime.UnhandledException(Target, e); |
|||
} |
|||
} |
|||
|
|||
return Interlocked.Increment(ref ccw->RefCount); |
|||
} |
|||
|
|||
internal int Release(Ccw* ccw) |
|||
{ |
|||
Interlocked.Decrement(ref _refCount); |
|||
var cnt = Interlocked.Decrement(ref ccw->RefCount); |
|||
if (cnt == 0) |
|||
return FreeCcw(ccw); |
|||
|
|||
return cnt; |
|||
} |
|||
|
|||
int FreeCcw(Ccw* ccw) |
|||
{ |
|||
lock (_lock) |
|||
{ |
|||
// Shadow got resurrected by a call to QueryInterface from another thread
|
|||
if (ccw->RefCount != 0) |
|||
return ccw->RefCount; |
|||
|
|||
var intPtr = new IntPtr(ccw); |
|||
var type = _backShadows[intPtr]; |
|||
_backShadows.Remove(intPtr); |
|||
_shadows.Remove(type); |
|||
Marshal.FreeHGlobal(intPtr); |
|||
if (_shadows.Count == 0) |
|||
{ |
|||
_handle?.Free(); |
|||
_handle = null; |
|||
try |
|||
{ |
|||
Target.OnUnreferencedFromNative(); |
|||
} |
|||
catch(Exception e) |
|||
{ |
|||
MicroComRuntime.UnhandledException(Target, e); |
|||
} |
|||
} |
|||
} |
|||
|
|||
return 0; |
|||
} |
|||
|
|||
/* |
|||
Needs to be called to support the following scenario: |
|||
1) Object created |
|||
2) Object passed to native code, shadow is created, CCW is created |
|||
3) Native side has never called AddRef |
|||
|
|||
In that case the GC handle to the shadow object is still alive |
|||
*/ |
|||
|
|||
public void Dispose() |
|||
{ |
|||
lock (_lock) |
|||
{ |
|||
List<IntPtr> toRemove = null; |
|||
foreach (var kv in _backShadows) |
|||
{ |
|||
var ccw = (Ccw*)kv.Key; |
|||
if (ccw->RefCount == 0) |
|||
{ |
|||
toRemove ??= new List<IntPtr>(); |
|||
toRemove.Add(kv.Key); |
|||
} |
|||
} |
|||
|
|||
if(toRemove != null) |
|||
foreach (var intPtr in toRemove) |
|||
FreeCcw((Ccw*)intPtr); |
|||
} |
|||
} |
|||
} |
|||
|
|||
[StructLayout(LayoutKind.Sequential)] |
|||
struct Ccw |
|||
{ |
|||
public IntPtr VTable; |
|||
public IntPtr GcShadowHandle; |
|||
public volatile int RefCount; |
|||
public MicroComShadow GetShadow() => (MicroComShadow)GCHandle.FromIntPtr(GcShadowHandle).Target; |
|||
} |
|||
} |
|||
@ -1,47 +0,0 @@ |
|||
using System; |
|||
using System.Collections.Generic; |
|||
using System.Runtime.InteropServices; |
|||
|
|||
namespace Avalonia.MicroCom |
|||
{ |
|||
public unsafe class MicroComVtblBase |
|||
{ |
|||
private List<IntPtr> _methods = new List<IntPtr>(); |
|||
[UnmanagedFunctionPointerAttribute(CallingConvention.StdCall)] |
|||
private delegate int AddRefDelegate(Ccw* ccw); |
|||
|
|||
[UnmanagedFunctionPointerAttribute(CallingConvention.StdCall)] |
|||
private delegate int QueryInterfaceDelegate(Ccw* ccw, Guid* guid, void** ppv); |
|||
|
|||
public static IntPtr Vtable { get; } = new MicroComVtblBase().CreateVTable(); |
|||
public MicroComVtblBase() |
|||
{ |
|||
AddMethod((QueryInterfaceDelegate)QueryInterface); |
|||
AddMethod((AddRefDelegate)AddRef); |
|||
AddMethod((AddRefDelegate)Release); |
|||
} |
|||
|
|||
protected void AddMethod(void* f) |
|||
{ |
|||
_methods.Add(new IntPtr(f)); |
|||
} |
|||
|
|||
protected void AddMethod(Delegate d) |
|||
{ |
|||
GCHandle.Alloc(d); |
|||
_methods.Add(Marshal.GetFunctionPointerForDelegate(d)); |
|||
} |
|||
|
|||
protected unsafe IntPtr CreateVTable() |
|||
{ |
|||
var ptr = (IntPtr*)Marshal.AllocHGlobal((IntPtr.Size + 1) * _methods.Count); |
|||
for (var c = 0; c < _methods.Count; c++) |
|||
ptr[c] = _methods[c]; |
|||
return new IntPtr(ptr); |
|||
} |
|||
|
|||
static int QueryInterface(Ccw* ccw, Guid* guid, void** ppv) => ccw->GetShadow().QueryInterface(ccw, guid, ppv); |
|||
static int AddRef(Ccw* ccw) => ccw->GetShadow().AddRef(ccw); |
|||
static int Release(Ccw* ccw) => ccw->GetShadow().Release(ccw); |
|||
} |
|||
} |
|||
@ -0,0 +1,6 @@ |
|||
<Project> |
|||
<Import Project="..\Directory.Build.props" /> |
|||
<PropertyGroup> |
|||
<EnableNETAnalyzers>false</EnableNETAnalyzers> |
|||
</PropertyGroup> |
|||
</Project> |
|||
Loading…
Reference in new issue