From 02fc4ef43b7834f4d0e7de927de0ec41a5725afe Mon Sep 17 00:00:00 2001
From: woutware <35376607+woutware@users.noreply.github.com>
Date: Sun, 29 Apr 2018 23:19:28 +0200
Subject: [PATCH] I think I forgot to commit this one.

---
 src/ImageSharp/ImageFrame{TPixel}.cs | 51 ++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/src/ImageSharp/ImageFrame{TPixel}.cs b/src/ImageSharp/ImageFrame{TPixel}.cs
index cf7a1ae4f..cb15fe3db 100644
--- a/src/ImageSharp/ImageFrame{TPixel}.cs
+++ b/src/ImageSharp/ImageFrame{TPixel}.cs
@@ -4,6 +4,7 @@
 using System;
 using System.Numerics;
 using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
 using System.Threading.Tasks;
 using SixLabors.ImageSharp.Advanced;
 using SixLabors.ImageSharp.Memory;
@@ -52,6 +53,39 @@ namespace SixLabors.ImageSharp
             this.MetaData = metaData;
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ImageFrame{TPixel}" /> class.
+        /// </summary>
+        /// <param name="configuration">The <see cref="Configuration"/> to use for buffer allocation and parallel options to clear the buffer with.</param>
+        /// <param name="width">The width of the image in pixels.</param>
+        /// <param name="height">The height of the image in pixels.</param>
+        /// <param name="clearColor">The color to clear the image with.</param>
+        internal ImageFrame(Configuration configuration, int width, int height, TPixel clearColor)
+            : this(configuration, width, height, clearColor, new ImageFrameMetaData())
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ImageFrame{TPixel}" /> class.
+        /// </summary>
+        /// <param name="configuration">The <see cref="Configuration"/> to use for buffer allocation and parallel options to clear the buffer with.</param>
+        /// <param name="width">The width of the image in pixels.</param>
+        /// <param name="height">The height of the image in pixels.</param>
+        /// <param name="clearColor">The color to clear the image with.</param>
+        /// <param name="metaData">The meta data.</param>
+        internal ImageFrame(Configuration configuration, int width, int height, TPixel clearColor, ImageFrameMetaData metaData)
+        {
+            Guard.NotNull(configuration, nameof(configuration));
+            Guard.MustBeGreaterThan(width, 0, nameof(width));
+            Guard.MustBeGreaterThan(height, 0, nameof(height));
+            Guard.NotNull(metaData, nameof(metaData));
+
+            this.MemoryManager = configuration.MemoryManager;
+            this.PixelBuffer = this.MemoryManager.Allocate2D<TPixel>(width, height, false);
+            this.Clear(configuration.ParallelOptions, clearColor);
+            this.MetaData = metaData;
+        }
+
         /// <summary>
         /// Initializes a new instance of the <see cref="ImageFrame{TPixel}" /> class.
         /// </summary>
@@ -267,6 +301,23 @@ namespace SixLabors.ImageSharp
             return target;
         }
 
+        /// <summary>
+        /// Clears the bitmap.
+        /// </summary>
+        /// <param name="parallelOptions">The parallel options.</param>
+        /// <param name="value">The value to initialize the bitmap with.</param>
+        public void Clear(ParallelOptions parallelOptions, TPixel value) {
+            Parallel.For(
+                0,
+                this.Height,
+                parallelOptions,
+                (int y) =>
+                {
+                    Span<TPixel> targetRow = this.GetPixelRowSpan(y);
+                    targetRow.Fill(value);
+                });
+        }
+
         /// <summary>
         /// Clones the current instance.
         /// </summary>