more benchmarks

tests/ImageSharp.Benchmarks/General/Vectorization/DivFloat.cs

@@ -1,54 +0,0 @@
-namespace ImageSharp.Benchmarks.General.Vectorization
-{
-    using System.Numerics;
-
-    using BenchmarkDotNet.Attributes;
-
-    public class DivFloat
-    {
-        private float[] input;
-
-        private float[] result;
-
-        [Params(32)]
-        public int InputSize { get; set; }
-
-        private float testValue;
-
-        [GlobalSetup]
-        public void Setup()
-        {
-            this.input = new float[this.InputSize];
-            this.result = new float[this.InputSize];
-            this.testValue = 42;
-
-            for (int i = 0; i < this.InputSize; i++)
-            {
-                this.input[i] = (uint)i;
-            }
-        }
-
-        [Benchmark(Baseline = true)]
-        public void Standard()
-        {
-            float v = this.testValue;
-            for (int i = 0; i < this.input.Length; i++)
-            {
-                this.result[i] = this.input[i] / v;
-            }
-        }
-
-        [Benchmark]
-        public void Simd()
-        {
-            Vector<float> v = new Vector<float>(this.testValue);
-
-            for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
-            {
-                Vector<float> a = new Vector<float>(this.input, i);
-                a = a / v;
-                a.CopyTo(this.result, i);
-            }
-        }
-    }
-}

tests/ImageSharp.Benchmarks/General/Vectorization/DivUInt32.cs

@@ -1,54 +0,0 @@
-namespace ImageSharp.Benchmarks.General.Vectorization
-{
-    using System.Numerics;
-
-    using BenchmarkDotNet.Attributes;
-
-    public class DivUInt32
-    {
-        private uint[] input;
-
-        private uint[] result;
-
-        [Params(32)]
-        public int InputSize { get; set; }
-
-        private uint testValue;
-
-        [GlobalSetup]
-        public void Setup()
-        {
-            this.input = new uint[this.InputSize];
-            this.result = new uint[this.InputSize];
-            this.testValue = 42;
-
-            for (int i = 0; i < this.InputSize; i++)
-            {
-                this.input[i] = (uint)i;
-            }
-        }
-
-        [Benchmark(Baseline = true)]
-        public void Standard()
-        {
-            uint v = this.testValue;
-            for (int i = 0; i < this.input.Length; i++)
-            {
-                this.result[i] = this.input[i] / v;
-            }
-        }
-
-        [Benchmark]
-        public void Simd()
-        {
-            Vector<uint> v = new Vector<uint>(this.testValue);
-
-            for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
-            {
-                Vector<uint> a = new Vector<uint>(this.input, i);
-                a = a / v;
-                a.CopyTo(this.result, i);
-            }
-        }
-    }
-}

tests/ImageSharp.Benchmarks/General/Vectorization/Divide.cs

@@ -0,0 +1,69 @@
+namespace ImageSharp.Benchmarks.General.Vectorization
+{
+    using System;
+    using System.Numerics;
+
+    using BenchmarkDotNet.Attributes;
+
+    public class DivFloat : SIMDBenchmarkBase<float>.Divide
+    {
+        protected override float GetTestValue() => 42;
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            float v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = this.input[i] / v;
+            }
+        }
+    }
+
+    public class Divide : SIMDBenchmarkBase<uint>.Divide
+    {
+        protected override uint GetTestValue() => 42;
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            uint v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = this.input[i] / v;
+            }
+        }
+    }
+
+    public class DivInt32 : SIMDBenchmarkBase<int>.Divide
+    {
+        protected override int GetTestValue() => 42;
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            int v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = this.input[i] / v;
+            }
+        }
+    }
+
+    public class DivInt16 : SIMDBenchmarkBase<short>.Divide
+    {
+        protected override short GetTestValue() => 42;
+
+        protected override Vector<short> GetTestVector() => new Vector<short>(new short[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17});
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            short v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = (short)(this.input[i] / v);
+            }
+        }
+    }
+}

tests/ImageSharp.Benchmarks/General/Vectorization/MulFloat.cs

@@ -1,67 +0,0 @@
-namespace ImageSharp.Benchmarks.General.Vectorization
-{
-    using System.Numerics;
-
-    using BenchmarkDotNet.Attributes;
-
-    public class MulFloat
-    {
-        private float[] input;
-
-        private float[] result;
-
-        [Params(32)]
-        public int InputSize { get; set; }
-
-        private float testValue;
-
-        [GlobalSetup]
-        public void Setup()
-        {
-            this.input = new float[this.InputSize];
-            this.result = new float[this.InputSize];
-            this.testValue = 42;
-
-            for (int i = 0; i < this.InputSize; i++)
-            {
-                this.input[i] = i;
-            }
-        }
-
-        [Benchmark(Baseline = true)]
-        public void Standard()
-        {
-            float v = this.testValue;
-            for (int i = 0; i < this.input.Length; i++)
-            {
-                this.result[i] = this.input[i] * v;
-            }
-        }
-
-        [Benchmark]
-        public void SimdMultiplyByVector()
-        {
-            Vector<float> v = new Vector<float>(this.testValue);
-
-            for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
-            {
-                Vector<float> a = new Vector<float>(this.input, i);
-                a = a * v;
-                a.CopyTo(this.result, i);
-            }
-        }
-
-        [Benchmark]
-        public void SimdMultiplyByScalar()
-        {
-            float v = this.testValue;
-
-            for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
-            {
-                Vector<float> a = new Vector<float>(this.input, i);
-                a = a * v;
-                a.CopyTo(this.result, i);
-            }
-        }
-    }
-}

tests/ImageSharp.Benchmarks/General/Vectorization/MulUInt32.cs

@@ -1,54 +0,0 @@
-namespace ImageSharp.Benchmarks.General.Vectorization
-{
-    using System.Numerics;
-
-    using BenchmarkDotNet.Attributes;
-
-    public class MulUInt32
-    {
-        private uint[] input;
-
-        private uint[] result;
-
-        [Params(32)]
-        public int InputSize { get; set; }
-
-        private uint testValue;
-
-        [GlobalSetup]
-        public void Setup()
-        {
-            this.input = new uint[this.InputSize];
-            this.result = new uint[this.InputSize];
-            this.testValue = 42;
-
-            for (int i = 0; i < this.InputSize; i++)
-            {
-                this.input[i] = (uint)i;
-            }
-        }
-
-        [Benchmark(Baseline = true)]
-        public void Standard()
-        {
-            uint v = this.testValue;
-            for (int i = 0; i < this.input.Length; i++)
-            {
-                this.result[i] = this.input[i] * v;
-            }
-        }
-
-        [Benchmark]
-        public void Simd()
-        {
-            Vector<uint> v = new Vector<uint>(this.testValue);
-
-            for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
-            {
-                Vector<uint> a = new Vector<uint>(this.input, i);
-                a = a * v;
-                a.CopyTo(this.result, i);
-            }
-        }
-    }
-}

tests/ImageSharp.Benchmarks/General/Vectorization/Multiply.cs

@@ -0,0 +1,50 @@
+namespace ImageSharp.Benchmarks.General.Vectorization
+{
+    using System.Numerics;
+    using BenchmarkDotNet.Attributes;
+
+    public class MulUInt32 : SIMDBenchmarkBase<uint>.Multiply
+    {
+        protected override uint GetTestValue() => 42u;
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            uint v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = this.input[i] * v;
+            }
+        }
+    }
+
+    public class MulInt32 : SIMDBenchmarkBase<int>.Multiply
+    {
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            int v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = this.input[i] * v;
+            }
+        }
+    }
+
+    public class MulInt16 : SIMDBenchmarkBase<short>.Multiply
+    {
+        protected override short GetTestValue() => 42;
+
+        protected override Vector<short> GetTestVector() => new Vector<short>(new short[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 });
+
+        [Benchmark(Baseline = true)]
+        public void Standard()
+        {
+            short v = this.testValue;
+            for (int i = 0; i < this.input.Length; i++)
+            {
+                this.result[i] = (short)(this.input[i] * v);
+            }
+        }
+    }
+}

tests/ImageSharp.Benchmarks/General/Vectorization/SIMDBenchmarkBase.cs

@@ -0,0 +1,70 @@
+namespace ImageSharp.Benchmarks.General.Vectorization
+{
+    using System.Numerics;
+    using System.Runtime.CompilerServices;
+
+    using BenchmarkDotNet.Attributes;
+
+    public abstract class SIMDBenchmarkBase<T>
+        where T : struct
+    {
+        protected T[] input;
+
+        protected T[] result;
+
+        protected T testValue;
+
+        protected Vector<T> testVector;
+
+        protected virtual T GetTestValue() => default(T);
+
+        protected virtual Vector<T> GetTestVector() => new Vector<T>(this.GetTestValue());
+        
+
+        [Params(32)]
+        public int InputSize { get; set; }
+        
+        [GlobalSetup]
+        public virtual void Setup()
+        {
+            this.input = new T[this.InputSize];
+            this.result = new T[this.InputSize];
+            this.testValue = this.GetTestValue();
+            this.testVector = this.GetTestVector();
+        }
+
+        public abstract class Multiply : SIMDBenchmarkBase<T>
+        {
+            [Benchmark]
+            public void Simd()
+            {
+                Vector<T> v = this.testVector;
+
+                for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
+                {
+                    Vector<T> a = Unsafe.As<T, Vector<T>>(ref this.input[i]);
+                    a = a * v;
+                    Unsafe.As<T, Vector<T>>(ref this.result[i]) = a;
+                }
+            }
+        }
+
+        public abstract class Divide : SIMDBenchmarkBase<T>
+        {
+            [Benchmark]
+            public void Simd()
+            {
+                Vector<T> v = this.testVector;
+
+                for (int i = 0; i < this.input.Length; i += Vector<uint>.Count)
+                {
+                    Vector<T> a = Unsafe.As<T, Vector<T>>(ref this.input[i]);
+                    a = a / v;
+                    Unsafe.As<T, Vector<T>>(ref this.result[i]) = a;
+                }
+            }
+        }
+
+        
+    }
+}

tests/ImageSharp.Benchmarks/Image/DecodeJpegMultiple.cs

@@ -6,8 +6,13 @@
 namespace ImageSharp.Benchmarks.Image
 {
     using System.Collections.Generic;
+    using System.IO;
+
     using BenchmarkDotNet.Attributes;
 
+    using ImageSharp.Formats;
+    using ImageSharp.PixelFormats;
+
     using CoreImage = ImageSharp.Image;
 
     [Config(typeof(Config.Short))]
@@ -20,14 +25,23 @@ namespace ImageSharp.Benchmarks.Image
 
         protected override IEnumerable<string> SearchPatterns => new[] { "*.jpg" };
 
-        [Benchmark(Description = "DecodeJpegMultiple - ImageSharp")]
-        public void DecodeJpegImageSharp()
+        [Benchmark(Description = "DecodeJpegMultiple - ImageSharp NEW")]
+        public void DecodeJpegImageSharpNwq()
         {
             this.ForEachStream(
                 ms => CoreImage.Load<Rgba32>(ms)
                 );
         }
 
+
+        [Benchmark(Description = "DecodeJpegMultiple - ImageSharp Original")]
+        public void DecodeJpegImageSharpOriginal()
+        {
+            this.ForEachStream(
+                ms => CoreImage.Load<Rgba32>(ms, new OriginalJpegDecoder())
+            );
+        }
+
         [Benchmark(Baseline = true, Description = "DecodeJpegMultiple - System.Drawing")]
         public void DecodeJpegSystemDrawing()
         {
@@ -36,5 +50,25 @@ namespace ImageSharp.Benchmarks.Image
                 );
         }
 
+
+        public sealed class OriginalJpegDecoder : IImageDecoder, IJpegDecoderOptions
+        {
+            /// <summary>
+            /// Gets or sets a value indicating whether the metadata should be ignored when the image is being decoded.
+            /// </summary>
+            public bool IgnoreMetadata { get; set; }
+
+            /// <inheritdoc/>
+            public Image<TPixel> Decode<TPixel>(Configuration configuration, Stream stream)
+                where TPixel : struct, IPixel<TPixel>
+            {
+                Guard.NotNull(stream, "stream");
+
+                using (var decoder = new JpegDecoderCore(configuration, this))
+                {
+                    return decoder.Decode<TPixel>(stream);
+                }
+            }
+        }
     }
 }

tests/ImageSharp.Benchmarks/Image/MultiImageBenchmarkBase.cs

@@ -39,7 +39,7 @@ namespace ImageSharp.Benchmarks.Image
         [Params(InputImageCategory.AllImages, InputImageCategory.SmallImagesOnly, InputImageCategory.LargeImagesOnly)]
         public virtual InputImageCategory InputCategory { get; set; }
 
-        protected virtual string BaseFolder => "../ImageSharp.Tests/TestImages/Formats/";
+        protected virtual string BaseFolder => "../../../../../../../../ImageSharp.Tests/TestImages/Formats/";
 
         protected virtual IEnumerable<string> SearchPatterns => new[] { "*.*" };