[feat] Added ReadMidiFile method.

RhythmGameUtilities.Tests/MidiTest.cs

@@ -0,0 +1,96 @@
+using System.IO;
+using NUnit.Framework;
+
+namespace RhythmGameUtilities.Tests
+{
+
+    public class MidiTest
+    {
+
+        [Test]
+        public void TestReadMidiData()
+        {
+            var directory = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
+            var path = Path.GetFullPath(Path.Combine(directory, "../../../Mocks/song.mid"));
+
+            var content = File.ReadAllBytes(path);
+
+            var notes = Midi.ReadMidiData(content);
+
+            Assert.That(notes.Length, Is.EqualTo(10));
+
+            Assert.That(notes[0].Position, Is.EqualTo(0));
+            Assert.That(notes[0].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[1].Position, Is.EqualTo(480));
+            Assert.That(notes[1].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[2].Position, Is.EqualTo(960));
+            Assert.That(notes[2].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[3].Position, Is.EqualTo(1440));
+            Assert.That(notes[3].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[4].Position, Is.EqualTo(1920));
+            Assert.That(notes[4].HandPosition, Is.EqualTo(56));
+
+            Assert.That(notes[5].Position, Is.EqualTo(2400));
+            Assert.That(notes[5].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[6].Position, Is.EqualTo(2400));
+            Assert.That(notes[6].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[7].Position, Is.EqualTo(2400));
+            Assert.That(notes[7].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[8].Position, Is.EqualTo(2400));
+            Assert.That(notes[8].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[9].Position, Is.EqualTo(2400));
+            Assert.That(notes[9].HandPosition, Is.EqualTo(56));
+        }
+
+        [Test]
+        public void TestReadMidiFile()
+        {
+            var directory = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
+            var path = Path.GetFullPath(Path.Combine(directory, "../../../Mocks/song.mid"));
+
+            var notes = Midi.ReadMidiFile(path);
+
+            Assert.That(notes.Length, Is.EqualTo(10));
+
+            Assert.That(notes[0].Position, Is.EqualTo(0));
+            Assert.That(notes[0].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[1].Position, Is.EqualTo(480));
+            Assert.That(notes[1].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[2].Position, Is.EqualTo(960));
+            Assert.That(notes[2].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[3].Position, Is.EqualTo(1440));
+            Assert.That(notes[3].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[4].Position, Is.EqualTo(1920));
+            Assert.That(notes[4].HandPosition, Is.EqualTo(56));
+
+            Assert.That(notes[5].Position, Is.EqualTo(2400));
+            Assert.That(notes[5].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[6].Position, Is.EqualTo(2400));
+            Assert.That(notes[6].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[7].Position, Is.EqualTo(2400));
+            Assert.That(notes[7].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[8].Position, Is.EqualTo(2400));
+            Assert.That(notes[8].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[9].Position, Is.EqualTo(2400));
+            Assert.That(notes[9].HandPosition, Is.EqualTo(56));
+        }
+
+    }
+
+}

RhythmGameUtilities/Scripts/Midi.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace RhythmGameUtilities
+{
+
+    internal static class MidiInternal
+    {
+
+        [DllImport("libRhythmGameUtilities", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ReadMidiDataInternal(byte[] bytes, int dataSize, out int size);
+
+        [DllImport("libRhythmGameUtilities", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ReadMidiFileInternal(string filename, out int size);
+
+    }
+
+    public static class Midi
+    {
+
+        public static Note[] ReadMidiData(byte[] bytes)
+        {
+            var notes = new List<Note>();
+
+            var ptrArray = MidiInternal.ReadMidiDataInternal(bytes, bytes.Length, out var size);
+
+            var noteSize = Marshal.SizeOf(typeof(Note));
+
+            for (var i = 0; i < size; i += 1)
+            {
+                var noteSizePtr = new IntPtr(ptrArray.ToInt64() + noteSize * i);
+                var note = Marshal.PtrToStructure<Note>(noteSizePtr);
+
+                notes.Add(note);
+            }
+
+            Marshal.FreeHGlobal(ptrArray);
+
+            return notes.ToArray();
+        }
+
+        public static Note[] ReadMidiFile(string path)
+        {
+            var notes = new List<Note>();
+
+            var ptrArray = MidiInternal.ReadMidiFileInternal(path, out var size);
+
+            var noteSize = Marshal.SizeOf(typeof(Note));
+
+            for (var i = 0; i < size; i += 1)
+            {
+                var noteSizePtr = new IntPtr(ptrArray.ToInt64() + noteSize * i);
+                var note = Marshal.PtrToStructure<Note>(noteSizePtr);
+
+                notes.Add(note);
+            }
+
+            Marshal.FreeHGlobal(ptrArray);
+
+            return notes.ToArray();
+        }
+
+    }
+
+}

UnityPackage/Editor/Tests/MidiTest.cs

@@ -0,0 +1,96 @@
+using System.IO;
+using NUnit.Framework;
+
+namespace RhythmGameUtilities.Tests
+{
+
+    public class MidiTest
+    {
+
+        [Test]
+        public void TestReadMidiData()
+        {
+            var directory = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
+            var path = Path.GetFullPath(Path.Combine(directory, "../../../Mocks/song.mid"));
+
+            var content = File.ReadAllBytes(path);
+
+            var notes = Midi.ReadMidiData(content);
+
+            Assert.That(notes.Length, Is.EqualTo(10));
+
+            Assert.That(notes[0].Position, Is.EqualTo(0));
+            Assert.That(notes[0].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[1].Position, Is.EqualTo(480));
+            Assert.That(notes[1].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[2].Position, Is.EqualTo(960));
+            Assert.That(notes[2].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[3].Position, Is.EqualTo(1440));
+            Assert.That(notes[3].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[4].Position, Is.EqualTo(1920));
+            Assert.That(notes[4].HandPosition, Is.EqualTo(56));
+
+            Assert.That(notes[5].Position, Is.EqualTo(2400));
+            Assert.That(notes[5].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[6].Position, Is.EqualTo(2400));
+            Assert.That(notes[6].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[7].Position, Is.EqualTo(2400));
+            Assert.That(notes[7].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[8].Position, Is.EqualTo(2400));
+            Assert.That(notes[8].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[9].Position, Is.EqualTo(2400));
+            Assert.That(notes[9].HandPosition, Is.EqualTo(56));
+        }
+
+        [Test]
+        public void TestReadMidiFile()
+        {
+            var directory = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
+            var path = Path.GetFullPath(Path.Combine(directory, "../../../Mocks/song.mid"));
+
+            var notes = Midi.ReadMidiFile(path);
+
+            Assert.That(notes.Length, Is.EqualTo(10));
+
+            Assert.That(notes[0].Position, Is.EqualTo(0));
+            Assert.That(notes[0].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[1].Position, Is.EqualTo(480));
+            Assert.That(notes[1].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[2].Position, Is.EqualTo(960));
+            Assert.That(notes[2].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[3].Position, Is.EqualTo(1440));
+            Assert.That(notes[3].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[4].Position, Is.EqualTo(1920));
+            Assert.That(notes[4].HandPosition, Is.EqualTo(56));
+
+            Assert.That(notes[5].Position, Is.EqualTo(2400));
+            Assert.That(notes[5].HandPosition, Is.EqualTo(48));
+
+            Assert.That(notes[6].Position, Is.EqualTo(2400));
+            Assert.That(notes[6].HandPosition, Is.EqualTo(50));
+
+            Assert.That(notes[7].Position, Is.EqualTo(2400));
+            Assert.That(notes[7].HandPosition, Is.EqualTo(52));
+
+            Assert.That(notes[8].Position, Is.EqualTo(2400));
+            Assert.That(notes[8].HandPosition, Is.EqualTo(54));
+
+            Assert.That(notes[9].Position, Is.EqualTo(2400));
+            Assert.That(notes[9].HandPosition, Is.EqualTo(56));
+        }
+
+    }
+
+}

UnityPackage/Scripts/Midi.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+
+namespace RhythmGameUtilities
+{
+
+    internal static class MidiInternal
+    {
+
+        [DllImport("libRhythmGameUtilities", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ReadMidiDataInternal(byte[] bytes, int dataSize, out int size);
+
+        [DllImport("libRhythmGameUtilities", CallingConvention = CallingConvention.Cdecl)]
+        public static extern IntPtr ReadMidiFileInternal(string filename, out int size);
+
+    }
+
+    public static class Midi
+    {
+
+        public static Note[] ReadMidiData(byte[] bytes)
+        {
+            var notes = new List<Note>();
+
+            var ptrArray = MidiInternal.ReadMidiDataInternal(bytes, bytes.Length, out var size);
+
+            var noteSize = Marshal.SizeOf(typeof(Note));
+
+            for (var i = 0; i < size; i += 1)
+            {
+                var noteSizePtr = new IntPtr(ptrArray.ToInt64() + noteSize * i);
+                var note = Marshal.PtrToStructure<Note>(noteSizePtr);
+
+                notes.Add(note);
+            }
+
+            Marshal.FreeHGlobal(ptrArray);
+
+            return notes.ToArray();
+        }
+
+        public static Note[] ReadMidiFile(string path)
+        {
+            var notes = new List<Note>();
+
+            var ptrArray = MidiInternal.ReadMidiFileInternal(path, out var size);
+
+            var noteSize = Marshal.SizeOf(typeof(Note));
+
+            for (var i = 0; i < size; i += 1)
+            {
+                var noteSizePtr = new IntPtr(ptrArray.ToInt64() + noteSize * i);
+                var note = Marshal.PtrToStructure<Note>(noteSizePtr);
+
+                notes.Add(note);
+            }
+
+            Marshal.FreeHGlobal(ptrArray);
+
+            return notes.ToArray();
+        }
+
+    }
+
+}