153 lines
3.0 KiB
C#
153 lines
3.0 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using OpenTK.Audio;
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using OpenTK.Audio.OpenAL;
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using org.budnhead.core;
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using org.budnhead.tools;
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namespace org.budnhead.audio
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{
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public static class nhBuffers
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{
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//public static List<int> buffers = new List<int>();
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//public static List<string> buffersNames = new List<string>();
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public static Dictionary<string, int> buffers = new Dictionary<string, int>();
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private static List<string> _files = new List<string>();
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private static List<string> _searchPaths = new List<string>();
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//private static string filepath;
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public static void init()
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{
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buffers.Clear();
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_files.Clear();
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//_searchPaths = new List<string>();
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_searchPaths.Add(".");
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}
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public static void addSearchPath(string sPath)
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{
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_searchPaths.Add(sPath);
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}
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public static void loadSound(params string[] sName)
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{
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foreach(string a in sName)
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{
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string fullName = FileHelper.findFile(String.Format("{0}.wav", a), _searchPaths.ToArray());
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Console.WriteLine("TEST: " + fullName);
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if (fullName != null)
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{
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Console.WriteLine("Sound found: {0}", fullName);
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_createBuffer(fullName, a);
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}else
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throw new FileNotFoundException("File not found.");
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}
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}
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private static void _createBuffer(string path, string sName)
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{
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Stream stream = File.Open(path, FileMode.Open);
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string name = sName;
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if (stream == null)
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throw new ArgumentNullException(nameof(stream));
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using (BinaryReader reader = new BinaryReader(stream))
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{
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//RIFF HEADER
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string signature = new string(reader.ReadChars(4));
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if (signature != "RIFF")
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throw new NotSupportedException("File is not RIFF.");
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reader.ReadInt32();
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string format = new string(reader.ReadChars(4));
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if (format != "WAVE")
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throw new NotSupportedException("File is not WAVE.");
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//WAVE HEADER
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string format_sig = new string(reader.ReadChars(4));
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if (format_sig != "fmt ")
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throw new NotSupportedException("File is not supported.");
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//Format Chunk Size
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reader.ReadInt32();
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//Format
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reader.ReadInt16();
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int channels = reader.ReadInt16();
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int sample_rate = reader.ReadInt32();
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//Byterate
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reader.ReadInt32();
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reader.ReadInt16();
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//Block allign
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int bits = reader.ReadInt16();
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string data_sig = new string(reader.ReadChars(4));
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if (data_sig != "data")
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throw new NotSupportedException("File is not supported");
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//Data chunk Size
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reader.ReadInt32();
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byte[] soundData = reader.ReadBytes((int)reader.BaseStream.Length);
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ALFormat fileFormat;
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switch (channels)
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{
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case 1:
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fileFormat = bits == 8 ? ALFormat.Mono8 : ALFormat.Mono16;
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break;
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case 2:
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fileFormat = bits == 8 ? ALFormat.Stereo8 : ALFormat.Stereo16;
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break;
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default: throw new NotSupportedException("File is not supported.");
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}
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int buffer = AL.GenBuffer();
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AL.BufferData(buffer, fileFormat, soundData, soundData.Length, sample_rate);
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buffers.Add(name, buffer);
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}
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}
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}
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}
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