From e020e460aa98c083d9e9cfc823d9177affcad8e3 Mon Sep 17 00:00:00 2001
From: Darth Affe <darthaffe@wyrez.org>
Date: Thu, 11 Jul 2024 00:24:39 +0200
Subject: [PATCH] Added first benchmarks

---
 HPPH.Benchmark/ConvertBenchmarks.cs  | 58 ++++++++++++++++++++++++++++
 HPPH.Benchmark/HPPH.Benchmark.csproj |  1 +
 HPPH.Benchmark/Program.cs            |  5 ++-
 3 files changed, 63 insertions(+), 1 deletion(-)
 create mode 100644 HPPH.Benchmark/ConvertBenchmarks.cs

diff --git a/HPPH.Benchmark/ConvertBenchmarks.cs b/HPPH.Benchmark/ConvertBenchmarks.cs
new file mode 100644
index 0000000..64dfdd1
--- /dev/null
+++ b/HPPH.Benchmark/ConvertBenchmarks.cs
@@ -0,0 +1,58 @@
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Jobs;
+using HPPH.System.Drawing;
+
+namespace HPPH.Benchmark;
+
+[SimpleJob(RuntimeMoniker.Net80)]
+[HtmlExporter]
+[MemoryDiagnoser]
+public class ConvertBenchmarks
+{
+    #region Properties & Fields
+
+    private readonly List<ColorRGB[]> _colors = [];
+
+    #endregion
+
+    #region Constructors
+
+    public ConvertBenchmarks()
+    {
+        if (!Directory.Exists(@"..\..\..\..\sample_data")) return;
+
+        _colors = [];
+
+        IEnumerable<string> files = Directory.EnumerateFiles(@"..\..\..\..\sample_data", "*.png", SearchOption.AllDirectories);
+        foreach (string file in files)
+            _colors.Add(ImageHelper.LoadImage(file).AsRefImage<ColorRGB>().ToArray());
+    }
+
+    #endregion
+
+    #region Methods
+
+    [Benchmark]
+    public ColorBGR[] RGBToBGR()
+    {
+        ColorBGR[] result = [];
+        foreach (ColorRGB[] color in _colors)
+        {
+            result = new ReadOnlySpan<ColorRGB>(color).Convert<ColorRGB, ColorBGR>();
+        }
+
+        return result;
+    }
+
+    [Benchmark]
+    public ColorBGRA[] RGBToBGRA()
+    {
+        ColorBGRA[] result = [];
+        foreach (ColorRGB[] color in _colors)
+            result = new ReadOnlySpan<ColorRGB>(color).Convert<ColorRGB, ColorBGRA>();
+
+        return result;
+    }
+
+    #endregion
+}
\ No newline at end of file
diff --git a/HPPH.Benchmark/HPPH.Benchmark.csproj b/HPPH.Benchmark/HPPH.Benchmark.csproj
index d519e0a..1147eb0 100644
--- a/HPPH.Benchmark/HPPH.Benchmark.csproj
+++ b/HPPH.Benchmark/HPPH.Benchmark.csproj
@@ -13,6 +13,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\HPPH.Reference\HPPH.Reference.csproj" />
+    <ProjectReference Include="..\HPPH.System.Drawing\HPPH.System.Drawing.csproj" />
     <ProjectReference Include="..\HPPH\HPPH.csproj" />
   </ItemGroup>
 
diff --git a/HPPH.Benchmark/Program.cs b/HPPH.Benchmark/Program.cs
index a751bf5..6c7bb39 100644
--- a/HPPH.Benchmark/Program.cs
+++ b/HPPH.Benchmark/Program.cs
@@ -1 +1,4 @@
-Console.WriteLine("Empty");
\ No newline at end of file
+using BenchmarkDotNet.Running;
+using HPPH.Benchmark;
+
+BenchmarkRunner.Run<ConvertBenchmarks>();