public SfmlSound(Config config)
{
try
{
Console.Write("Initialize sound: ");
this.config = config;
config.audio_soundvolume = Math.Clamp(config.audio_soundvolume, 0, this.MaxVolume);
this.buffers = new SoundBuffer[DoomInfo.SfxNames.Length];
this.amplitudes = new float[DoomInfo.SfxNames.Length];
for (var i = 0; i < DoomInfo.SfxNames.Length; i++)
{
var name = "DS" + DoomInfo.SfxNames[i];
if (!DoomApplication.Instance.FileSystem.Exists(name))
{
continue;
}
int sampleRate;
int sampleCount;
var samples = SfmlSound.GetSamples(name, out sampleRate, out sampleCount);
if (samples != null)
{
this.buffers[i] = new SoundBuffer(samples, 1, (uint)sampleRate);
this.amplitudes[i] = SfmlSound.GetAmplitude(samples, sampleRate, sampleCount);
}
}
this.channels = new Sound[SfmlSound.channelCount];
this.infos = new ChannelInfo[SfmlSound.channelCount];
for (var i = 0; i < this.channels.Length; i++)
{
this.channels[i] = new Sound();
this.infos[i] = new ChannelInfo();
}
this.uiChannel = new Sound();
this.uiReserved = Sfx.NONE;
this.masterVolumeDecay = (float)config.audio_soundvolume / this.MaxVolume;
this.lastUpdate = DateTime.MinValue;
Console.WriteLine("OK");
}
catch (Exception e)
{
Console.WriteLine("Failed");
this.Dispose();
ExceptionDispatchInfo.Throw(e);
}
}
private static short[] GetSamples(string name, out int sampleRate, out int sampleCount)
{
var reader = new BinaryReader(DoomApplication.Instance.FileSystem.Read(name));
if (reader.BaseStream.Length < 8)
{
sampleRate = -1;
sampleCount = -1;
return(null);
}
reader.BaseStream.Position = 2;
sampleRate = reader.ReadUInt16();
sampleCount = reader.ReadInt32();
if (sampleCount >= 32 && SfmlSound.ContainsDmxPadding(reader, sampleCount))
{
reader.BaseStream.Position += 16;
sampleCount -= 32;
}
if (sampleCount > 0)
{
var samples = new short[sampleCount];
for (var t = 0; t < samples.Length; t++)
{
samples[t] = (short)((reader.ReadByte() - 128) << 8);
}
return(samples);
}
else
{
return(null);
}
}