void GenerateClickTrackSamples(CopyContext ctx, QNT_Timestamp currentTick, TempoChange currentTempo, QNT_Duration timeSignatureDuration)
{
QNT_Timestamp tempoStart = currentTempo.time;
QNT_Timestamp nextBeat = timeline.GetClosestBeatSnapped(currentTick, currentTempo.timeSignature.Denominator);
UInt64 currentBeatInBar = ((currentTick.tick - tempoStart.tick) / timeSignatureDuration.tick) % currentTempo.timeSignature.Numerator;
if (currentBeatInBar != 1)
{
TryAddClickEvent(currentTick, nextBeat, hihat_hit);
}
else
{
TryAddClickEvent(currentTick, nextBeat, hihat_hit3);
}
TryAddClickEvent(currentTick, nextBeat + Constants.SixteenthNoteDuration, hihat_hit2);
TryAddClickEvent(currentTick, nextBeat + Constants.EighthNoteDuration, hihat_open);
for (int i = clickTrackEvents.Count - 1; i >= 0; i--)
{
ClickTrackEvent ev = clickTrackEvents[i];
ev.clip.currentSample = ev.currentSample;
ev.clip.CopySampleIntoBuffer(ctx);
ev.currentSample = ev.clip.currentSample;
if (ev.clip.scaledCurrentSample > ev.clip.samples.Length)
{
clickTrackEvents.RemoveAt(i);
}
else
{
clickTrackEvents[i] = ev;
}
}
}
public void CopySampleIntoBuffer(CopyContext ctx)
{
UInt64 shiftNum = ((UInt64)1 << PrecisionShift);
UInt64 speed = (UInt64)frequency * shiftNum / (UInt64)ctx.bufferFreq;
if (ctx.playbackSpeed != 1.0f)
{
speed = (UInt64)(speed * ctx.playbackSpeed);
}
float panClamp = Mathf.Clamp(pan, -1.0f, 1.0f);
int clipChannel = 0;
int sourceChannel = 0;
float maxValue = 0.0f;
while (sourceChannel < ctx.bufferChannels)
{
float panAmount = 1.0f;
if (sourceChannel == 0)
{
panAmount = Math.Min(1.0f - panClamp, 1.0f);
}
else if (sourceChannel == 1)
{
panAmount = Math.Min(1.0f + panClamp, 1.0f);
}
float value = 0.0f;
long samplePos = (uint)(currentSample >> PrecisionShift) * channels + clipChannel;
if (samplePos < samples.Length)
{
value = samples[samplePos];
}
float duckValue = Mathf.Clamp(1.0f - duckVolume, 0.0f, 1.0f);
maxValue = Math.Max(value * ctx.volume * duckValue, maxValue);
ctx.bufferData[ctx.index * ctx.bufferChannels + sourceChannel] += value * ctx.volume * panAmount * duckValue;
sourceChannel++;
clipChannel++;
if (clipChannel >= channels)
{
clipChannel = 0;
}
}
currentSample += speed;
ctx.outputValue = Math.Abs(maxValue);
}
void PlayHitsounds(CopyContext ctx, List <HitsoundEvent> events)
{
kick.duckVolume = 0.0f;
snare.duckVolume = 0.0f;
percussion.duckVolume = 0.0f;
chainStart.duckVolume = 0.0f;
chainNote.duckVolume = 0.0f;
melee.duckVolume = 0.0f;
mine.duckVolume = 0.0f;
float oldSpeed = ctx.playbackSpeed;
UInt64 waitSpeed = (UInt64)1 << ClipData.PrecisionShift;
if (oldSpeed != 1.0f)
{
waitSpeed = (UInt64)(waitSpeed * oldSpeed);
}
//Always play hitsounds at full speed
ctx.playbackSpeed = 1.0f;
for (int i = events.Count - 1; i >= 0; i--)
{
HitsoundEvent ev = events[i];
bool valid = true;
if (ev.waitSamples > 0)
{
if (waitSpeed > ev.waitSamples)
{
ev.waitSamples = 0;
}
else
{
ev.waitSamples -= waitSpeed;
}
}
else
{
ctx.volume = hitSoundVolume * ev.volume;
ev.sound.currentSample = ev.currentSample;
ev.sound.pan = ev.pan;
ev.sound.CopySampleIntoBuffer(ctx);
ev.sound.duckVolume = Mathf.Clamp(ev.sound.duckVolume + 0.25f, 0.0f, 1.0f);
if (ev.sound.scaledCurrentSample > ev.sound.samples.Length)
{
events.RemoveAt(i);
valid = false;
}
else
{
ev.currentSample = ev.sound.currentSample;
}
}
//Update the pan:
ev.pan = (ev.xPos - mainCameraX) / 7.15f;
if (valid)
{
events[i] = ev;
}
}
ctx.playbackSpeed = 1.0f;
}