From 101340a6ed95fdeabd234349a1cde6343345829b Mon Sep 17 00:00:00 2001
From: KM198912 <55886806+KM198912@users.noreply.github.com>
Date: Tue, 20 Oct 2020 15:54:01 +0200
Subject: [PATCH 1/4] Implement Bitmap Scaling

Implement Bitmap Scaling by Desired Height and Width
---
 source/Cosmos.System2/Graphics/Canvas.cs | 43 +++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/source/Cosmos.System2/Graphics/Canvas.cs b/source/Cosmos.System2/Graphics/Canvas.cs
index 427f1d084b..223f6c44e1 100644
--- a/source/Cosmos.System2/Graphics/Canvas.cs
+++ b/source/Cosmos.System2/Graphics/Canvas.cs
@@ -855,7 +855,48 @@ public virtual void DrawImage(Image image, int x, int y)
                 }
             }
         }
-
+        
+        /// <summary>
+        /// Draw a Scaled Bitmap.
+        /// </summary>
+        /// <param name="image">Image to Scale.</param>
+        /// <param name="x">X coordinate.</param>
+        /// <param name="y">Y coordinate.</param>
+        /// <param name="w">Desired Width.</param>
+        /// <param name="h">Desired Height.</param>
+        private int[] scaleImage(Image image, int newWidth, int newHeight)
+        {
+            int[] pixels = image.rawData;
+            int w1 = (int)image.Width;
+            int h1 = (int)image.Height;
+            int[] temp = new int[newWidth * newHeight];
+            int x_ratio = (int)((w1 << 16) / newWidth) + 1;
+            int y_ratio = (int)((h1 << 16) / newHeight) + 1;
+            int x2, y2;
+            for (int i = 0; i < newHeight; i++)
+            {
+                for (int j = 0; j < newWidth; j++)
+                {
+                    x2 = ((j * x_ratio) >> 16);
+                    y2 = ((i * y_ratio) >> 16);
+                    temp[(i * newWidth) + j] = pixels[(y2 * w1) + x2];
+                }
+            }
+            return temp;
+        }
+        public virtual void DrawScaledImage(Image image, int x, int y,int w,int h)
+        {
+            int[] pixels = scaleImage(image, w, h);
+            for (int _x = 0; _x < w; _x++)
+            {
+                for (int _y = 0; _y < h; _y++)
+                {
+                    Global.mDebugger.SendInternal(pixels[_x + _y * w]);
+                    DrawPoint(new Pen(Color.FromArgb(pixels[_x + _y * w])), x + _x, y + _y);
+                }
+            }
+        }
+        
         /// <summary>
         /// Draw image with alpha channel.
         /// </summary>

From b797255548a1f500863a4bff571c7aeb973f637b Mon Sep 17 00:00:00 2001
From: KM198912 <55886806+KM198912@users.noreply.github.com>
Date: Tue, 20 Oct 2020 15:56:53 +0200
Subject: [PATCH 2/4] Add Scaling Test

---
 Tests/Kernels/GraphicTest/Kernel.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Tests/Kernels/GraphicTest/Kernel.cs b/Tests/Kernels/GraphicTest/Kernel.cs
index d6a6a43516..61951432cb 100644
--- a/Tests/Kernels/GraphicTest/Kernel.cs
+++ b/Tests/Kernels/GraphicTest/Kernel.cs
@@ -117,7 +117,9 @@ private void DoTest(Canvas aCanvas)
 
             aCanvas.DrawImage(bitmap, new Point(0, 0));
             aCanvas.DrawImage(bitmap2, new Point(200, 0));
-
+            //Scale Bitmap
+            aCanvas.DrawScaledImage(bitmap,0,0,50,50);
+            
             aCanvas.DrawImageAlpha(bitmap3, new Point(0, 300));
 
             /* Drawing ellipses */

From 7cf12663e48358101c770aab3ecd4df06d6bd90f Mon Sep 17 00:00:00 2001
From: KM198912 <55886806+KM198912@users.noreply.github.com>
Date: Tue, 20 Oct 2020 16:33:07 +0200
Subject: [PATCH 3/4] Update Canvas.cs

Make Requested Changes
---
 source/Cosmos.System2/Graphics/Canvas.cs | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/source/Cosmos.System2/Graphics/Canvas.cs b/source/Cosmos.System2/Graphics/Canvas.cs
index 223f6c44e1..bd5d6efca7 100644
--- a/source/Cosmos.System2/Graphics/Canvas.cs
+++ b/source/Cosmos.System2/Graphics/Canvas.cs
@@ -856,14 +856,6 @@ public virtual void DrawImage(Image image, int x, int y)
             }
         }
         
-        /// <summary>
-        /// Draw a Scaled Bitmap.
-        /// </summary>
-        /// <param name="image">Image to Scale.</param>
-        /// <param name="x">X coordinate.</param>
-        /// <param name="y">Y coordinate.</param>
-        /// <param name="w">Desired Width.</param>
-        /// <param name="h">Desired Height.</param>
         private int[] scaleImage(Image image, int newWidth, int newHeight)
         {
             int[] pixels = image.rawData;
@@ -884,7 +876,15 @@ private int[] scaleImage(Image image, int newWidth, int newHeight)
             }
             return temp;
         }
-        public virtual void DrawScaledImage(Image image, int x, int y,int w,int h)
+                /// <summary>
+        /// Draw a Scaled Bitmap.
+        /// </summary>
+        /// <param name="image">Image to Scale.</param>
+        /// <param name="x">X coordinate.</param>
+        /// <param name="y">Y coordinate.</param>
+        /// <param name="w">Desired Width.</param>
+        /// <param name="h">Desired Height.</param>
+        public virtual void DrawImage(Image image, int x, int y,int w,int h)
         {
             int[] pixels = scaleImage(image, w, h);
             for (int _x = 0; _x < w; _x++)

From 9435168e13db7cd20cbeaa9e68dcfe008f3bd092 Mon Sep 17 00:00:00 2001
From: KM198912 <55886806+KM198912@users.noreply.github.com>
Date: Tue, 20 Oct 2020 16:46:05 +0200
Subject: [PATCH 4/4] Update Kernel.cs

Forgot that
---
 Tests/Kernels/GraphicTest/Kernel.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Tests/Kernels/GraphicTest/Kernel.cs b/Tests/Kernels/GraphicTest/Kernel.cs
index 61951432cb..ab9d54f599 100644
--- a/Tests/Kernels/GraphicTest/Kernel.cs
+++ b/Tests/Kernels/GraphicTest/Kernel.cs
@@ -118,7 +118,7 @@ private void DoTest(Canvas aCanvas)
             aCanvas.DrawImage(bitmap, new Point(0, 0));
             aCanvas.DrawImage(bitmap2, new Point(200, 0));
             //Scale Bitmap
-            aCanvas.DrawScaledImage(bitmap,0,0,50,50);
+            aCanvas.DrawImage(bitmap,0,0,50,50);
             
             aCanvas.DrawImageAlpha(bitmap3, new Point(0, 300));