public void Write(AudioBuffer buff)
{
int bs = Settings.PCM.BlockAlign;
int buff_offs = 0;
while (buff_offs < buff.Length)
{
if (mixbuff == null)
{
mixbuff = mixer.LockEmptyBuffer(iSource);
mixbuff.source[iSource].Prepare(-1);
mixbuff.source[iSource].Length = 0;
}
int chunk = Math.Min(buff.Length - buff_offs, mixbuff.source[iSource].Size - mixbuff.source[iSource].Length);
Buffer.BlockCopy(buff.Float, buff_offs * bs, mixbuff.source[iSource].Float, mixbuff.source[iSource].Length * bs, chunk * bs);
mixbuff.source[iSource].Length += chunk;
buff_offs += chunk;
if (mixbuff.source[iSource].Length == mixbuff.source[iSource].Size)
{
mixer.UnlockEmptyBuffer(mixbuff, iSource, volume);
mixbuff = null;
}
}
samplePos += buff.Length;
}
public MixingWriter(MixingSource mixer, int iSource)
{
this.mixer = mixer;
this.iSource = iSource;
this.samplePos = 0;
this.mixbuff = null;
this.volume = 1.0f;
}
public MixingWriter(MixingSource mixer, int iSource)
{
this.m_settings = new AudioEncoderSettings(mixer.PCM);
this.mixer = mixer;
this.iSource = iSource;
this.samplePos = 0;
this.mixbuff = null;
this.volume = 1.0f;
}
public int Read(AudioBuffer result, int maxLength)
{
if (maxLength > (BufferSize - mixoffs) || maxLength < 0)
{
maxLength = (BufferSize - mixoffs);
}
result.Prepare(maxLength);
if (mixbuff == null)
{
mixbuff = LockFilledBuffer();
}
float sumVolume = 0.0f;
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
{
if (mixbuff.filled[iSource])
{
sumVolume += mixbuff.volume[iSource];
}
}
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
{
volume[iSource] = mixbuff.filled[iSource] ? mixbuff.volume[iSource] / Math.Max(1.0f, sumVolume) : 0.0f;
}
for (int iSmp = 0; iSmp < result.Length; iSmp++)
{
for (int iChan = 0; iChan < result.PCM.ChannelCount; iChan++)
{
float sample = 0.0f;
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
{
sample += mixbuff.source[iSource].Float[mixoffs + iSmp, iChan] * volume[iSource];
}
result.Float[iSmp, iChan] = sample;
}
}
mixoffs += result.Length;
if (mixoffs == BufferSize)
{
UnlockFilledBuffer(mixbuff);
mixbuff = null;
mixoffs = 0;
}
samplePos += result.Length;
if (AudioRead != null)
{
audioReadArgs.source = this;
audioReadArgs.buffer = result;
AudioRead(this, audioReadArgs);
}
return(result.Length);
}
private bool IsFilled(MixingBuffer buf)
{
bool res = true;
for (int i = 0; i < buf.filled.Length; i++)
{
res &= buf.filled[i] || !this.playing[i];
}
return(res);
}
public void Flush()
{
if (mixbuff != null)
{
if (mixbuff.source[iSource].Length < mixbuff.source[iSource].Size)
{
AudioSamples.MemSet(mixbuff.source[iSource].Bytes, 0, mixbuff.source[iSource].Length * Settings.PCM.BlockAlign, (mixbuff.source[iSource].Size - mixbuff.source[iSource].Length) * Settings.PCM.BlockAlign);
}
mixer.UnlockEmptyBuffer(mixbuff, iSource, volume);
mixbuff = null;
}
}
internal void UnlockFilledBuffer(MixingBuffer mixbuff)
{
lock (this)
{
//Trace.WriteLine(string.Format("UnockFilledBuffer: 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1]));
for (int i = 0; i < mixbuff.filled.Length; i++)
{
mixbuff.filled[i] = false;
}
Monitor.PulseAll(this);
}
}
internal void UnlockEmptyBuffer(MixingBuffer mixbuff, int iSource, float volume)
{
lock (this)
{
//Trace.WriteLine(string.Format("UnlockEmptyBuffer{8}< 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1], iSource));
mixbuff.volume[iSource] = volume;
mixbuff.filled[iSource] = true;
//Trace.WriteLine(string.Format("UnlockEmptyBuffer{8}> 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1], iSource));
Monitor.PulseAll(this);
}
}
public int Read(AudioBuffer result, int maxLength)
{
if (maxLength > (BufferSize - mixoffs) || maxLength < 0)
maxLength = (BufferSize - mixoffs);
result.Prepare(maxLength);
if (mixbuff == null)
mixbuff = LockFilledBuffer();
float sumVolume = 0.0f;
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
if (mixbuff.filled[iSource])
sumVolume += mixbuff.volume[iSource];
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
volume[iSource] = mixbuff.filled[iSource] ? mixbuff.volume[iSource] / Math.Max(1.0f, sumVolume) : 0.0f;
for (int iSmp = 0; iSmp < result.Length; iSmp++)
{
for (int iChan = 0; iChan < result.PCM.ChannelCount; iChan++)
{
float sample = 0.0f;
for (int iSource = 0; iSource < mixbuff.source.Length; iSource++)
sample += mixbuff.source[iSource].Float[mixoffs + iSmp, iChan] * volume[iSource];
result.Float[iSmp, iChan] = sample;
}
}
mixoffs += result.Length;
if (mixoffs == BufferSize)
{
UnlockFilledBuffer(mixbuff);
mixbuff = null;
mixoffs = 0;
}
samplePos += result.Length;
if (AudioRead != null)
{
audioReadArgs.source = this;
audioReadArgs.buffer = result;
AudioRead(this, audioReadArgs);
}
return result.Length;
}
internal void UnlockEmptyBuffer(MixingBuffer mixbuff, int iSource, float volume)
{
lock (this)
{
//Trace.WriteLine(string.Format("UnlockEmptyBuffer{8}< 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1], iSource));
mixbuff.volume[iSource] = volume;
mixbuff.filled[iSource] = true;
//Trace.WriteLine(string.Format("UnlockEmptyBuffer{8}> 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1], iSource));
Monitor.PulseAll(this);
}
}
internal void UnlockFilledBuffer(MixingBuffer mixbuff)
{
lock (this)
{
//Trace.WriteLine(string.Format("UnockFilledBuffer: 0.0: {0} {1}; 0.1: {2} {3}; 1.0: {4} {5}; 1.1: {6} {7};",
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1],
// buf0.playing[0], buf0.filled[0], buf0.playing[1], buf0.filled[1]));
for (int i = 0; i < mixbuff.filled.Length; i++)
mixbuff.filled[i] = false;
Monitor.PulseAll(this);
}
}
private bool IsFilled(MixingBuffer buf)
{
bool res = true;
for (int i = 0; i < buf.filled.Length; i++)
res &= buf.filled[i] || !this.playing[i];
return res;
}
public void Flush()
{
if (mixbuff != null)
{
if (mixbuff.source[iSource].Length < mixbuff.source[iSource].Size)
AudioSamples.MemSet(mixbuff.source[iSource].Bytes, 0, mixbuff.source[iSource].Length * PCM.BlockAlign, (mixbuff.source[iSource].Size - mixbuff.source[iSource].Length) * PCM.BlockAlign);
mixer.UnlockEmptyBuffer(mixbuff, iSource, volume);
mixbuff = null;
}
}
public void Write(AudioBuffer buff)
{
int bs = PCM.BlockAlign;
int buff_offs = 0;
while (buff_offs < buff.Length)
{
if (mixbuff == null)
{
mixbuff = mixer.LockEmptyBuffer(iSource);
mixbuff.source[iSource].Prepare(-1);
mixbuff.source[iSource].Length = 0;
}
int chunk = Math.Min(buff.Length - buff_offs, mixbuff.source[iSource].Size - mixbuff.source[iSource].Length);
Buffer.BlockCopy(buff.Float, buff_offs * bs, mixbuff.source[iSource].Float, mixbuff.source[iSource].Length * bs, chunk * bs);
mixbuff.source[iSource].Length += chunk;
buff_offs += chunk;
if (mixbuff.source[iSource].Length == mixbuff.source[iSource].Size)
{
mixer.UnlockEmptyBuffer(mixbuff, iSource, volume);
mixbuff = null;
}
}
samplePos += buff.Length;
}
