public override int Read(byte[] buffer, int offset, int count)
{
if (!isPlaying)
{
GmeNative.gme_start_track(emuHandle, track++);
isPlaying = true;
}
// Make a buffer and fill it.
short[] sBuffer = new short[count / 2];
GmeNative.gme_play(emuHandle, count / 2, sBuffer);
// Convert the short samples to byte samples and place them
// in the NAudio byte sample buffer.
Buffer.BlockCopy(sBuffer, 0, buffer, 0, buffer.Length);
return(buffer.Length);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="fileName">File to open using Game Music Emu.</param>
/// <param name="sampleRate">Desired sample rate. Defaults to 44100Hz if not specified.</param>
/// <param name="channels">Number of channels to use. Defaults to two if not specified.</param>
public GmeReader(string fileName, int sampleRate = 44100, int channels = 2)
{
// Open the file.
this.emuHandle = GmeNative.OpenFile(fileName, sampleRate);
// Enable accurate sound emulation.
GmeNative.gme_enable_accuracy(emuHandle, true);
// Get track info
this.TrackInfo = GmeNative.GetTrackInfo(emuHandle, track);
this.TrackCount = GmeNative.gme_track_count(emuHandle);
this.VoiceCount = GmeNative.gme_voice_count(emuHandle);
this.Equalizer = GmeNative.GetEqualizer(emuHandle);
this.Type = GmeNative.GetType(emuHandle);
GmeType tempType = this.Type; // Since properties can't be used in ref arguments.
this.SupportsMultipleTracks = GmeNative.gme_type_multitrack(ref tempType);
// Init the wave format.
this.waveFormat = new WaveFormat(sampleRate, 16, channels);
}
public void Unload()
{
GmeNative.gme_delete(emuHandle);
}
// TODO: documentation
public void SetTempo(double tempo)
{
GmeNative.SetTempo(emuHandle, tempo);
}
// TODO: documentation
// i think this determines when the song starts to fade out?? not sure wtf it does yet
public void SetFade(int msLength)
{
GmeNative.SetFade(emuHandle, msLength);
}
// TODO: documentation
// 0 to 1
public void SetStereoDepth(double depth)
{
GmeNative.SetStereoDepth(emuHandle, depth);
}
// TODO: documentation
// see GmeEqualizer for value ranges
public void SetEqualizer(double treble, double bass)
{
GmeNative.SetEqualizer(emuHandle, treble, bass);
}
// TODO: documentation
public void MuteVoices(int mutingMask)
{
GmeNative.MuteVoices(emuHandle, mutingMask);
}
// TODO: documentation
public void MuteVoice(int voiceIndex, int mute)
{
GmeNative.MuteVoice(emuHandle, voiceIndex, mute);
}
/// <summary>
/// Gets the name of a voice in the track.
/// </summary>
/// <param name="voiceIndex">Voice index of the voice to get the name of.</param>
/// <returns>The name of the voice specified by the given index.</returns>
public string GetVoiceName(int voiceIndex)
{
return(GmeNative.GetVoiceName(emuHandle, voiceIndex));
}
