Tests - Add Artemis.Core and profile editor test suites (#907)

src/Artemis.Core/Artemis.Core.csproj

@@ -19,6 +19,10 @@
         <AssemblyMetadata Include="PluginApiVersion" Value="$(PluginApiVersion)" />
     </ItemGroup>
 
+    <ItemGroup>
+        <InternalsVisibleTo Include="Artemis.Core.Tests" />
+    </ItemGroup>
+
     <ItemGroup>
         <ProjectReference Include="..\Artemis.Storage\Artemis.Storage.csproj" />
         <ProjectReference Condition="'$(BuildingNuget)' == 'True'" Update="..\Artemis.Storage\Artemis.Storage.csproj" PrivateAssets="All" />

src/Artemis.Core/RGB.NET/SKTexture.cs

@@ -28,17 +28,18 @@ public sealed class SKTexture : ITexture, IDisposable
 
         foreach (ArtemisDevice artemisDevice in devices)
         {
+            // Sample the same render-grid-aligned rectangle that layers use to clip and draw the LED
             foreach (ArtemisLed artemisLed in artemisDevice.Leds)
-                _ledRects[artemisLed.RgbLed] = CreateSampleRect(artemisLed.RgbLed.AbsoluteBoundary, scale, width, height);
+                _ledRects[artemisLed.RgbLed] = CreateSampleRect(artemisLed.AbsoluteRectangle, scale, width, height);
         }
     }
 
     #endregion
 
-    private static SKRectI CreateSampleRect(Rectangle boundary, float scale, int width, int height)
+    private static SKRectI CreateSampleRect(SKRect boundary, float scale, int width, int height)
     {
-        (int left, int right) = ScaleSpan(boundary.Location.X, boundary.Size.Width, scale, width);
-        (int top, int bottom) = ScaleSpan(boundary.Location.Y, boundary.Size.Height, scale, height);
+        (int left, int right) = ScaleSpan(boundary.Left, boundary.Width, scale, width);
+        (int top, int bottom) = ScaleSpan(boundary.Top, boundary.Height, scale, height);
         return new SKRectI(left, top, right, bottom);
     }
 

src/Artemis.Core/Utilities/RenderScale.cs

@@ -28,8 +28,15 @@ internal static class RenderScale
         return SKRectI.Create(
             roundX - roundX % RenderScaleMultiplier,
             roundY - roundY % RenderScaleMultiplier,
-            roundWidth - roundWidth % RenderScaleMultiplier,
-            roundHeight - roundHeight % RenderScaleMultiplier
+            SnapSize(roundWidth),
+            SnapSize(roundHeight)
         );
     }
+
+    private static int SnapSize(int size)
+    {
+        // Keep at least one render pixel so LEDs smaller than a pixel don't collapse and remain addressable
+        int snapped = size - size % RenderScaleMultiplier;
+        return snapped == 0 && size > 0 ? RenderScaleMultiplier : snapped;
+    }
 }