update shapes package to fix broken tests

src/ImageSharp.Drawing/ImageSharp.Drawing.csproj

@@ -37,8 +37,8 @@
     <ProjectReference Include="..\ImageSharp\ImageSharp.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="SixLabors.Shapes.Text" Version="0.1.0-alpha0020" />
-    <PackageReference Include="SixLabors.Shapes" Version="0.1.0-alpha0020" />
+    <PackageReference Include="SixLabors.Shapes.Text" Version="0.1.0-alpha0021" />
+    <PackageReference Include="SixLabors.Shapes" Version="0.1.0-alpha0021" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.0-beta004">
       <PrivateAssets>All</PrivateAssets>
     </PackageReference>

src/ImageSharp.Drawing/Paths/ShapeRegion.cs

@@ -49,11 +49,11 @@ namespace SixLabors.ImageSharp.Drawing
             using (var innerBuffer = new Buffer<PointF>(buffer.Length))
             {
                 PointF[] array = innerBuffer.Array;
-                int count = this.Shape.FindIntersections(start, end, array, offset);
+                int count = this.Shape.FindIntersections(start, end, array, 0);
 
                 for (int i = 0; i < count; i++)
                 {
-                    buffer[i] = array[i].X;
+                    buffer[i + offset] = array[i].X;
                 }
 
                 return count;

src/ImageSharp.Drawing/Processors/FillRegionProcessor.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Buffers;
+using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using SixLabors.ImageSharp.Drawing;
 using SixLabors.ImageSharp.Drawing.Brushes;
@@ -116,6 +117,10 @@ namespace SixLabors.ImageSharp.Drawing.Processors
                             float subpixelFractionPoint = subpixelFraction / subpixelCount;
                             for (float subPixel = (float)y; subPixel < y + 1; subPixel += subpixelFraction)
                             {
+                                if(y == 102)
+                                {
+                                    Debugger.Break();
+                                }
                                 int pointsFound = region.Scan(subPixel, buffer, 0);
                                 if (pointsFound == 0)
                                 {
@@ -123,7 +128,7 @@ namespace SixLabors.ImageSharp.Drawing.Processors
                                     continue;
                                 }
 
-                                QuickSort(buffer.AsSpan().Slice(0, pointsFound));
+                                QuickSort(new Span<float>(buffer, 0, pointsFound));
 
                                 for (int point = 0; point < pointsFound; point += 2)
                                 {

tests/ImageSharp.Tests/Drawing/Paths/ShapeRegionTests.cs

@@ -77,7 +77,7 @@ namespace SixLabors.ImageSharp.Tests.Drawing.Paths
             ShapeRegion region = new ShapeRegion(pathMock.Object);
 
             pathMock.Setup(x => x.FindIntersections(It.IsAny<PointF>(), It.IsAny<PointF>(), It.IsAny<PointF[]>(), It.IsAny<int>()))
-                .Callback<PointF, PointF, Span<PointF>>((s, e, b) => {
+                .Callback<PointF, PointF, PointF[], int>((s, e, b, o) => {
                     Assert.Equal(yToScan, s.Y);
                     Assert.Equal(yToScan, e.Y);
                     Assert.True(s.X < bounds.Left);
@@ -96,7 +96,7 @@ namespace SixLabors.ImageSharp.Tests.Drawing.Paths
             ShapeRegion region = new ShapeRegion(pathMock.Object);
 
             pathMock.Setup(x => x.FindIntersections(It.IsAny<PointF>(), It.IsAny<PointF>(), It.IsAny<PointF[]>(), It.IsAny<int>()))
-                .Callback<PointF, PointF, Span<PointF>>((s, e, b) => {
+                .Callback<PointF, PointF, PointF[], int>((s, e, b, o) => {
                     Assert.Equal(yToScan, s.Y);
                     Assert.Equal(yToScan, e.Y);
                     Assert.True(s.X < bounds.Left);