From d48b15227da821e9b49c78c6dc88586e892d7145 Mon Sep 17 00:00:00 2001
From: Dmitry Pentin <riotbr3aker@gmail.com>
Date: Thu, 13 May 2021 22:25:05 +0300
Subject: [PATCH] Image<TPixel> private methods no longer check if object was
 disposed - it is done at public method calls

---
 src/ImageSharp/Image{TPixel}.cs | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/ImageSharp/Image{TPixel}.cs b/src/ImageSharp/Image{TPixel}.cs
index 0a0b0d0d60..4db3badb01 100644
--- a/src/ImageSharp/Image{TPixel}.cs
+++ b/src/ImageSharp/Image{TPixel}.cs
@@ -235,10 +235,10 @@ namespace SixLabors.ImageSharp
         {
             this.EnsureNotDisposed();
 
-            var clonedFrames = new ImageFrame<TPixel>[this.Frames.Count];
+            var clonedFrames = new ImageFrame<TPixel>[this.frames.Count];
             for (int i = 0; i < clonedFrames.Length; i++)
             {
-                clonedFrames[i] = this.Frames[i].Clone(configuration);
+                clonedFrames[i] = this.frames[i].Clone(configuration);
             }
 
             return new Image<TPixel>(configuration, this.Metadata.DeepClone(), clonedFrames);
@@ -254,10 +254,10 @@ namespace SixLabors.ImageSharp
         {
             this.EnsureNotDisposed();
 
-            var clonedFrames = new ImageFrame<TPixel2>[this.Frames.Count];
+            var clonedFrames = new ImageFrame<TPixel2>[this.frames.Count];
             for (int i = 0; i < clonedFrames.Length; i++)
             {
-                clonedFrames[i] = this.Frames[i].CloneAs<TPixel2>(configuration);
+                clonedFrames[i] = this.frames[i].CloneAs<TPixel2>(configuration);
             }
 
             return new Image<TPixel2>(configuration, this.Metadata.DeepClone(), clonedFrames);
@@ -273,7 +273,7 @@ namespace SixLabors.ImageSharp
 
             if (disposing)
             {
-                this.Frames.Dispose();
+                this.frames.Dispose();
             }
 
             this.isDisposed = true;
@@ -315,9 +315,12 @@ namespace SixLabors.ImageSharp
         {
             Guard.NotNull(pixelSource, nameof(pixelSource));
 
-            for (int i = 0; i < this.Frames.Count; i++)
+            this.EnsureNotDisposed();
+
+            ImageFrameCollection<TPixel> sourceFrames = pixelSource.Frames;
+            for (int i = 0; i < this.frames.Count; i++)
             {
-                this.Frames[i].SwapOrCopyPixelsBufferFrom(pixelSource.Frames[i]);
+                this.frames[i].SwapOrCopyPixelsBufferFrom(sourceFrames[i]);
             }
 
             this.UpdateSize(pixelSource.Size());