From 4544742e345977f4b1cad5cb5e29b3cc45852d35 Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Wed, 16 Oct 2024 20:53:16 +1000
Subject: [PATCH] Fix identity checks

---
 src/ImageSharp/Common/Helpers/QuadDistortionHelper.cs     | 7 ++++++-
 .../Processing/Processors/Transforms/TransformUtils.cs    | 8 ++++----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/ImageSharp/Common/Helpers/QuadDistortionHelper.cs b/src/ImageSharp/Common/Helpers/QuadDistortionHelper.cs
index 27863f773a..dcd89bafb2 100644
--- a/src/ImageSharp/Common/Helpers/QuadDistortionHelper.cs
+++ b/src/ImageSharp/Common/Helpers/QuadDistortionHelper.cs
@@ -23,7 +23,12 @@ internal static class QuadDistortionHelper
     /// This method is based on the algorithm described in the following article:
     /// <see href="https://blog.mbedded.ninja/mathematics/geometry/projective-transformations/"/>
     /// </remarks>
-    public static Matrix4x4 ComputeQuadDistortMatrix(Rectangle rectangle, PointF topLeft, PointF topRight, PointF bottomRight, PointF bottomLeft)
+    public static Matrix4x4 ComputeQuadDistortMatrix(
+        Rectangle rectangle,
+        PointF topLeft,
+        PointF topRight,
+        PointF bottomRight,
+        PointF bottomLeft)
     {
         PointF p1 = new(rectangle.X, rectangle.Y);
         PointF p2 = new(rectangle.X + rectangle.Width, rectangle.Y);
diff --git a/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs b/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs
index 62ea5e830d..fa6ab137b9 100644
--- a/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs
+++ b/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs
@@ -301,7 +301,7 @@ internal static class TransformUtils
     {
         Guard.IsTrue(size.Width > 0 && size.Height > 0, nameof(size), "Source size dimensions cannot be 0!");
 
-        if (matrix.Equals(default) || matrix.Equals(Matrix4x4.Identity))
+        if (matrix.IsIdentity || matrix.Equals(default))
         {
             return size;
         }
@@ -376,7 +376,7 @@ internal static class TransformUtils
     {
         Guard.IsTrue(size.Width > 0 && size.Height > 0, nameof(size), "Source size dimensions cannot be 0!");
 
-        if (matrix.Equals(default) || matrix.Equals(Matrix3x2.Identity))
+        if (matrix.IsIdentity || matrix.Equals(default))
         {
             return size;
         }
@@ -412,7 +412,7 @@ internal static class TransformUtils
     /// </returns>
     private static bool TryGetTransformedRectangle(RectangleF rectangle, Matrix3x2 matrix, out Rectangle bounds)
     {
-        if (rectangle.Equals(default) || Matrix3x2.Identity.Equals(matrix))
+        if (matrix.IsIdentity || rectangle.Equals(default))
         {
             bounds = default;
             return false;
@@ -439,7 +439,7 @@ internal static class TransformUtils
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     private static bool TryGetTransformedRectangle(RectangleF rectangle, Matrix4x4 matrix, out Rectangle bounds)
     {
-        if (rectangle.Equals(default) || Matrix4x4.Identity.Equals(matrix))
+        if (matrix.IsIdentity || rectangle.Equals(default))
         {
             bounds = default;
             return false;