private void MixF32_Stereo_NoLoop(float[] buffer, int numSamples, float leftVol, float rightVol)
{
float interStep = _freq * SoundMixer.SampleRateReciprocal;
int bufPos = 0;
do
{
if (CheckPause && IsPaused)
{
return;
}
Data.Stream.Position = _offset;
float sampL = Data.Reader.ReadSingle();
float sampR = Data.Reader.ReadSingle();
_interPos += interStep;
int posDelta = (int)_interPos;
_interPos -= posDelta;
posDelta *= sizeof(float) * 2;
_offset += posDelta;
buffer[bufPos] += sampL * leftVol;
buffer[bufPos + 1] += sampR * rightVol;
if (_offset >= Data.DataEnd)
{
SoundMixer.StopChannel(this);
return;
}
bufPos += 2;
} while (--numSamples > 0);
}
private void MixS16_Mono_NoLoop(float[] buffer, int numSamples, float leftVol, float rightVol)
{
float interStep = _freq * SoundMixer.SampleRateReciprocal;
int bufPos = 0;
do
{
if (CheckPause && IsPaused)
{
return;
}
Data.Stream.Position = _offset;
int samp = Data.Reader.ReadInt16();
_interPos += interStep;
int posDelta = (int)_interPos;
_interPos -= posDelta;
posDelta *= sizeof(short);
_offset += posDelta;
buffer[bufPos] += SoundMixer.S16ToF32(samp, leftVol);
buffer[bufPos + 1] += SoundMixer.S16ToF32(samp, rightVol);
if (_offset >= Data.DataEnd)
{
SoundMixer.StopChannel(this);
return;
}
bufPos += 2;
} while (--numSamples > 0);
}
private static void Task_FadeBattleBGMToOverworldBGM(BackTask task)
{
var data = (TaskData_Fade)task.Data;
if (!data.Handle.IsFading)
{
SoundMixer.StopChannel(_battleBGM.Channel);
_battleBGM = null;
if (_overworldBGM is not null)
{
// Create overworld bgm fade
_overworldBGM.Channel.BeginFade(1_000, 0f, 1f);
_overworldBGM.Channel.IsPaused = false;
}
_tasks.Remove(task);
}
}
private void MixS16_Stereo_Loop(float[] buffer, int numSamples, float leftVol, float rightVol)
{
float interStep = _freq * SoundMixer.SampleRateReciprocal;
int bufPos = 0;
do
{
if (CheckPause && IsPaused)
{
return;
}
Data.Stream.Position = _offset;
int sampL = Data.Reader.ReadInt16();
int sampR = Data.Reader.ReadInt16();
_interPos += interStep;
int posDelta = (int)_interPos;
_interPos -= posDelta;
posDelta *= sizeof(short) * 2;
_offset += posDelta;
// Add trail
if (_trailOffset < Data.DataEnd)
{
Data.Stream.Position = _trailOffset;
sampL += Data.Reader.ReadInt16();
sampR += Data.Reader.ReadInt16();
_trailOffset += posDelta;
}
buffer[bufPos] += SoundMixer.S16ToF32(sampL, leftVol);
buffer[bufPos + 1] += SoundMixer.S16ToF32(sampR, rightVol);
if (_offset >= Data.LoopEnd)
{
_offset = Data.LoopStart;
_trailOffset = Data.LoopEnd;
}
bufPos += 2;
} while (--numSamples > 0);
}
private static void Task_FadeOverworldBGMAndStartNewSong(BackTask task)
{
var data = (TaskData_FadeSongToSong)task.Data;
if (!data.Handle.IsFading)
{
SoundMixer.StopChannel(_overworldBGM.Channel);
if (data.Song == Song.None)
{
_overworldBGM = null;
}
else
{
_overworldBGM = SongToSound(data.Song);
_overworldBGM.Channel = new SoundChannel(_overworldBGM.Wav);
SoundMixer.AddChannel(_overworldBGM.Channel);
}
_tasks.Remove(task);
}
}