Add test suite for effects.

Pinta.ImageManipulation.System.Drawing/Pinta.ImageManipulation.System.Drawing.csproj

@@ -39,6 +39,7 @@
     <Reference Include="System.Drawing" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="BitmapExtensions.cs" />
     <Compile Include="BitmapWrapper.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

Pinta.ImageManipulation.UnitTests/BaseTest.cs

@@ -0,0 +1,77 @@
+// 
+// BaseTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Drawing;
+using System.IO;
+
+namespace Pinta.ImageManipulation.UnitTests
+{
+	public abstract class BaseTest
+	{
+		protected Bitmap GetSourceImage (string name)
+		{
+			var bitmap = new Bitmap (Path.Combine ("SourceBitmaps", name));
+
+			return bitmap;
+		}
+
+		protected Bitmap GetExpectedImage (string name)
+		{
+			var bitmap = new Bitmap (Path.Combine ("ExpectedBitmaps", name));
+
+			return bitmap;
+		}
+
+		protected unsafe void Compare (Bitmap actual, string expected)
+		{
+			if (!File.Exists (Path.Combine ("ExpectedBitmaps", expected))) {
+				actual.Save (Path.Combine (@"C:\Users\Jonathan\Desktop\Bitmaps", expected));
+				return;
+			}
+
+			var exp_img = GetExpectedImage (expected);
+
+			var act_data = actual.LockBits (new System.Drawing.Rectangle (0, 0, actual.Width, actual.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+			var exp_data = exp_img.LockBits (new System.Drawing.Rectangle (0, 0, actual.Width, actual.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+
+			var act_ptr = (ColorBgra*)act_data.Scan0;
+			var exp_ptr = (ColorBgra*)exp_data.Scan0;
+
+			var diff = 0;
+
+			for (var i = 0; i < actual.Width * actual.Height; i++)
+				if (*(act_ptr++) != *(exp_ptr++))
+					diff++;
+
+			actual.UnlockBits (act_data);
+			exp_img.UnlockBits (exp_data);
+
+			Assert.AreEqual (0, diff);
+		}
+	}
+}

Pinta.ImageManipulation.UnitTests/Effects/AutoLevelEffectTest.cs

@@ -0,0 +1,47 @@
+// 
+// AutoLevelEffectTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Pinta.ImageManipulation.Effects;
+
+namespace Pinta.ImageManipulation.UnitTests.Effects
+{
+	[TestClass]
+	public class AutoLevelEffectTest : BaseTest
+	{
+		[TestMethod]
+		public void AutoLevelEffect1 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new AutoLevelEffect ();
+			effect.Render (src);
+
+			Compare (src, "autolevel1.png");
+		}
+	}
+}

Pinta.ImageManipulation.UnitTests/Effects/BlackAndWhiteEffectTest.cs

@@ -0,0 +1,47 @@
+// 
+// BlackAndWhiteEffectTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Pinta.ImageManipulation.Effects;
+
+namespace Pinta.ImageManipulation.UnitTests.Effects
+{
+	[TestClass]
+	public class BlackAndWhiteEffectTest : BaseTest
+	{
+		[TestMethod]
+		public void BlackAndWhiteEffect1 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new BlackAndWhiteEffect ();
+			effect.Render (src);
+
+			Compare (src, "blackandwhite1.png");
+		}
+	}
+}

Pinta.ImageManipulation.UnitTests/Effects/BrightnessContrastEffectTest.cs

@@ -0,0 +1,58 @@
+// 
+// BrightnessContrastEffectTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Pinta.ImageManipulation.Effects;
+
+namespace Pinta.ImageManipulation.UnitTests.Effects
+{
+	[TestClass]
+	public class BrightnessContrastEffectTest : BaseTest
+	{
+		[TestMethod]
+		public void BrightnessContrastEffect1 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new BrightnessContrastEffect ();
+			effect.Render (src);
+
+			Compare (src, "brightnesscontrast1.png");
+		}
+
+		[TestMethod]
+		public void BrightnessContrastEffect2 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new BrightnessContrastEffect (80, 20);
+			effect.Render (src);
+
+			Compare (src, "brightnesscontrast2.png");
+		}
+	}
+}

Pinta.ImageManipulation.UnitTests/Effects/BulgeEffectTest.cs

@@ -0,0 +1,58 @@
+// 
+// BulgeEffectTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Pinta.ImageManipulation.Effects;
+
+namespace Pinta.ImageManipulation.UnitTests.Effects
+{
+	[TestClass]
+	public class BulgeEffectTest : BaseTest
+	{
+		[TestMethod]
+		public void BulgeEffect1 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new BulgeEffect ();
+			effect.Render (src);
+
+			Compare (src, "bulge1.png");
+		}
+
+		[TestMethod]
+		public void BulgeEffect2 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new BulgeEffect (12, new PointD (20, -20));
+			effect.Render (src);
+
+			Compare (src, "bulge2.png");
+		}
+	}
+}

Pinta.ImageManipulation.UnitTests/Effects/EdgeDetectEffectTest.cs

@@ -0,0 +1,58 @@
+// 
+// EdgeDetectEffectTest.cs
+//  
+// Author:
+//       Jonathan Pobst <monkey@jpobst.com>
+// 
+// Copyright (c) 2012 Jonathan Pobst
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Pinta.ImageManipulation.Effects;
+
+namespace Pinta.ImageManipulation.UnitTests.Effects
+{
+	[TestClass]
+	public class EdgeDetectEffectTest : BaseTest
+	{
+		[TestMethod]
+		public void EdgeDetectEffect1 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new EdgeDetectEffect ();
+			effect.Render (src);
+
+			Compare (src, "edgedetect1.png");
+		}
+
+		[TestMethod]
+		public void EdgeDetectEffect2 ()
+		{
+			var src = GetSourceImage ("input.png");
+
+			var effect = new EdgeDetectEffect (90);
+			effect.Render (src);
+
+			Compare (src, "edgedetect2.png");
+		}
+	}
+}