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audiomix.cpp
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#include "defines.h"
#ifdef WIN32
#include "asio/asio.h"
#endif
#include "audiodevice.h"
#include "audiofile.h"
#include "audiohardware.h"
#include "audiohardwarechannel.h"
#include "songmain.h"
#include "audiosend.h"
#include "semapores.h"
#include "runningaudiofile.h"
#include "gui.h"
#include "object_project.h"
#include "object_song.h"
#include "object_track.h"
#include "audiohdfile.h"
#include "peaks.h"
#include "panlaw.h"
#include "crossfade.h"
#include "audiopattern.h"
#include "peakbuffer.h"
extern char *channelchannelsinfo[],*channelchannelsinfo_short[];
extern int channelschannelsnumber[];
void AudioHDFile::CheckAndMixAudioRecordingBuffer(Seq_Song *song)
{
seekbeforewrite=-1;
recordingoffset=song->record_sampleoffset;
recordingsize=song->record_samplesize;
if(song->record_cyclecounter>reccycleloopcounter) // New Cycle Loop ?
{
if(reccycleloopcounter==0)
ClosePeakBuffer(); // End Peak
// Audio CycleRecording/Init Mix Start
// First Cycle Buffer
LONGLONG cs=song->playbacksettings.cycle_samplestart,
ps=recordpattern->GetSampleStart(song);
if(ps>=cs)
cyclestartoffset_samples=cyclereadsample=0; // Read/Write 1. Sample
else
cyclestartoffset_samples=cyclereadsample=cs-ps; // Seek Offset
TRACE ("New Loop %d\n",song->record_cyclecounter);
TRACE ("CS Offset Samples %d\n",cyclestartoffset_samples);
reccycleloopcounter=song->record_cyclecounter;
}
if(recordingsize>0)
{
recordingadded=true;
//recmix.channelsused=channels;
if(reccycleloopcounter>0) // In Buffer Cycle
{
// Read -> Buffer ->Convert Write later
LONGLONG seekto=cyclereadsample;
cyclereadsample+=recordingsize; // Add Buffer Size
seekto*=samplesize_all_channels;
seekto+=datastart;
seekbeforewrite=seekto;
LockIOSync(); // Avoid Cycle Read problems
writefile.SeekBegin(seekto);
writefile.Read(recmix.inputbuffer32bit,recordingsize*samplesize_all_channels); // Read RAW L/R
UnlockIOSync();
// L/R RAW to [][]
if(recmix.channelsused)
ConvertReadBufferToSamples(recmix.inputbuffer32bit,&recmix,recordingsize,channels,recordingoffset); // + Mix
}
}
}
AudioHardwareChannel::AudioHardwareChannel()
{
channelcleared[0]=channelcleared[1]=false;
hardwarechannelused=false;
notsupported=false;
sizeofsample=0;
// hwrecordbuffers=0;
currentpeak=peakmax=0;
p_maxdelaycounter=0;
audiochannel=0;
hwname[0]=0;
recordbufferscounter=0;
zerocleared=false;
Init();
}
AudioHardwareBuffer::AudioHardwareBuffer()
{
inputbuffersize=0;
inputbuffer32bit=0;
outputbufferARES=static_outputbufferARES=0;
channelsinbuffer=0;
samplesinbuffer=0;
channelsused=0;
bufferms=0;
delayvalue=0;
for(int i=0;i<MAXCHANNELSPERCHANNEL;i++)
{
hw_peak[i]=0;
max_peaks[i]=0;
}
hw_peaksum=0;
max_peaksum=0;
hwbflag=0;
#ifdef _DEBUG
n[0]='A';
n[1]='H';
n[2]='W';
n[3]='B';
#endif
}
int AudioHardwareBuffer::ExpandMixAudioBufferVolume(AudioHardwareBuffer *tobuffer,int tochannels,double volume,Peak *peakcreated,PanLaw *plaw,int flag)
{
volume*=LOGVOLUME_SIZE;
#ifdef ARES64
volume=logvolume[(int)volume];
#else
volume=logvolume_f[(int)volume];
#endif
if(volume==1)
return ExpandMixAudioBuffer(tobuffer,tochannels,peakcreated,plaw,flag); // no volume
if(channelsused && tochannels)
{
if(tochannels<channelsused)
{
if(tochannels==1 && channelsused==2) // Stereo->Mono
{
ARES *to=tobuffer->outputbufferARES,*froml=outputbufferARES,*fromr=froml+samplesinbuffer;
ARES mul=(ARES)volume;
int i=samplesinbuffer;
if(tobuffer->channelsused){
// Mix
if(int loop=i/8)
{
i-=loop*8;
do
{
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
*to++ +=(*froml++ + *fromr++) * mul;
}while(--loop);
}
while(i--) // Rest
*to++ +=(*froml++ + *fromr++) * mul;
}
else{
// Copy
if(int loop=i/8)
{
i-=loop*8;
do
{
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
*to++ = (*froml++ + *fromr++) * mul;
}while(--loop);
}
while(i--) // Rest
*to++ = (*froml++ + *fromr++) * mul;
}
}
}
else
if(tochannels>channelsused) // Expand Mono -> Stereo etc..
{
int fromc=0;
ARES *to=tobuffer->outputbufferARES,mul=(ARES)volume;
for(int c=0;c<tochannels;c++){
ARES *from=outputbufferARES;
from +=samplesinbuffer*fromc;
if(c+1>tobuffer->channelsused){
int i=samplesinbuffer;
if(int loop=i/8)
{
i-=loop*8;
do
{
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
*to++ = *from++ * mul;
}while(--loop);
}
while(i--) // Rest Copy
*to++ = *from++ * mul;
}
else{
// Mix
int i=samplesinbuffer;
if(int loop=i/8)
{
i-=loop*8;
do
{
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
*to++ += *from++ * mul;
}while(--loop);
}
while(i--)// Rest
*to++ += *from++ * mul;
}
if(channelsused>fromc+1)
fromc++;
}
}
else
MixAudioBuffer(tobuffer,volume,VOLUMEISCORRECT);
if(tochannels>tobuffer->channelsused)
tobuffer->channelsused=tochannels;
}
return flag;
}
int AudioHardwareBuffer::ExpandMixAudioBuffer(AudioHardwareBuffer *tobuffer,int tochannels,Peak *peak,PanLaw *plaw,int flag,ARES mulpeak)
{
if(channelsused==0 || tochannels==0)
return 0;
if(tochannels<channelsused)
{
if(tochannels==1 && channelsused==2) // Stereo->Mono
{
ARES *to=tobuffer->outputbufferARES,*from_l=outputbufferARES,*from_r=from_l+samplesinbuffer,p1=0,p2=0,mul;
int i=samplesinbuffer;
if(plaw && (mul=mainaudio->panorama_db[plaw->panorama_db]!=1))
{
if(peak)
{
ARES pc1_m=0,pc1_p=0,pc2_m=0,pc2_p=0;
if(tobuffer->channelsused)
while(i--)
{
ARES h1=*from_l++;
if(h1<pc1_m)pc1_m=h1;
else
if(h1>pc1_p)pc1_p=h1;
ARES h2=*from_r++;
if(h2<pc2_m)pc2_m=h1;
else
if(h2>pc2_p)pc2_p=h1;
*to++ += (h1+h2)*mul;
}
else
while(i--)
{
ARES h1=*from_l++;
if(h1<pc1_m)pc1_m=h1;
else
if(h1>pc1_p)pc1_p=h1;
ARES h2=*from_r++;
if(h2<pc2_m)pc2_m=h1;
else
if(h2>pc2_p)pc2_p=h1;
*to++ =(h1+h2)*mul;
}
p1=(-pc1_m>pc1_p)?-pc1_m:pc1_p;
p2=(-pc2_m>pc2_p)?-pc2_m:pc2_p;
}
else
{
if(tobuffer->channelsused)
while(i--)*to++ += (*from_l++ + *from_r++)*mul;
else
while(i--)*to++ = (*from_l++ + *from_r++)*mul;
}
}
else //no plaw
{
if(peak)
{
ARES pc1_m=0,pc1_p=0,pc2_m=0,pc2_p=0;
if(tobuffer->channelsused)
while(i--)
{
ARES h1=*from_l++;
if(h1<pc1_m)pc1_m=h1;
else
if(h1>pc1_p)pc1_p=h1;
ARES h2=*from_r++;
if(h2<pc2_m)pc2_m=h1;
else
if(h2>pc2_p)pc2_p=h1;
*to++ += (h1+h2)*mMIX;
}
else
while(i--)
{
ARES h1=*from_l++;
if(h1<pc1_m)pc1_m=h1;
else
if(h1>pc1_p)pc1_p=h1;
ARES h2=*from_r++;
if(h2<pc2_m)pc2_m=h1;
else
if(h2>pc2_p)pc2_p=h1;
*to++ = (h1+h2)*mMIX;
}
p1=(-pc1_m>pc1_p)?-pc1_m:pc1_p;
p2=(-pc2_m>pc2_p)?-pc2_m:pc2_p;
}
else
{
if(tobuffer->channelsused)
while(i--)*to++ += (*from_l++ + *from_r++)*mMIX;
else
while(i--)*to++ = (*from_l++ + *from_r++)*mMIX;
}
}
if(peak)
{
p1*=mulpeak;
p2*=mulpeak;
peak->p_current[0]=p1;
peak->p_current[1]=p2;
if(peak->p_max[0]<p1){
peak->p_max[0]=p1;
if(bufferms>=1)peak->p_maxdelaycounter[0]=delayvalue; // 1000 ms max peak drop down
}
if(peak->p_max[1]<p2){
peak->p_max[1]=p2;
if(bufferms>=1)peak->p_maxdelaycounter[1]=delayvalue; // 1000 ms max peak drop down
}
if(p2>p1)p1=p2;
if(p1>peak->current_sum)peak->current_sum=p1;
if(p1>peak->current_max)peak->current_max=p1;
if(p1>0 || peak->p_max[0]>0 || peak->p_max[1]>0)
peak->peakused=true;
flag|=PEAKCREATED;
}
}
}
else
if(tochannels>channelsused) // Expand Mono -> Stereo etc..
{
switch(channelsused)
{
case 1:
{
switch(tochannels)
{
case 2: // Mono -> Stereo
{
ARES *l,*r,*from=outputbufferARES;
register ARES h;
l=r=tobuffer->outputbufferARES;
r+=samplesinbuffer;
int i=samplesinbuffer;
if(peak)
{
ARES p_m=0,p_p=0;
if(tobuffer->channelsused==1)
{
memcpy(r,from,samplesinbuffer_size);
while(i--) // mix mono left,add right
{
h=*from++;
*l++ +=h; // *lp
//*r++ =h; //*rp;
if(h<p_m)p_m=h;
else
if(h>p_p)p_p=h;
}
}
else
if(tobuffer->channelsused>=2)
while(i--) // mix stereo
{
h=*from++;
*l++ +=h; //*lp;
*r++ +=h; //*rp;
if(h<p_m)p_m=h;
else
if(h>p_p)p_p=h;
}
else
{
// copy stereo
memcpy(l,from,samplesinbuffer_size);
memcpy(r,from,samplesinbuffer_size);
while(i--)
{
h=*from++;
if(h<p_m)p_m=h;
else
if(h>p_p)p_p=h;
}
}
p_m*=mulpeak;
p_p*=mulpeak;
ARES p=(-p_m>p_p)?-p_m:p_p;
for(int cl=0;cl<2;cl++)
{
peak->p_current[cl]=p;
if(peak->p_max[cl]<p){
peak->p_max[cl]=p;
if(bufferms>=1)peak->p_maxdelaycounter[cl]=delayvalue; // 1000 ms max peak drop down
}
if(p>0 || peak->p_max[cl]>0)peak->peakused=true;
}
if(p>peak->current_sum)peak->current_sum=p;
if(p>peak->current_max)peak->current_max=p;
flag|=PEAKCREATED;
}//if peak
else
{
if(tobuffer->channelsused==1)
{
// mix mono left,copy right
memcpy(r,from,samplesinbuffer_size);
while(i--)*l++ +=*from++; // *lp
}
else
if(tobuffer->channelsused>=2)
{
while(i--) // mix stereo
{
h=*from++;
*l++ +=h; //*lp;
*r++ +=h; //*rp;
}
}
else
{
// Copy Mono -> L/R
memcpy(l,from,samplesinbuffer_size);
memcpy(r,from,samplesinbuffer_size);
}
}
}
break;
}
}
break;
}
//kLinearPanLaw = 0, // L = pan * M; R = (1 - pan) * M;
//kEqualPowerPanLaw // L = pow (pan, 0.5) * M; R = pow ((1 - pan), 0.5) * M;
}
else // tochannels==usechannels
{
if(peak)
{
MixAudioBuffer(tobuffer,peak,flag,mulpeak);
flag|=PEAKCREATED;
}
else
MixAudioBuffer(tobuffer,flag);
}
if(tochannels>tobuffer->channelsused)
tobuffer->channelsused=tochannels;
return flag;
}
void AudioHardwareBuffer::CreatePeak(AudioHardwareChannel *hwc)
{
if(channelsused==0){hwc->currentpeak=0;return;}
ARES *sample=outputbufferARES,m_peak=0,p_peak=0;
int i=samplesinbuffer;
if(int loop=i/8)
{
i-=loop*8;
do
{
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}while(--loop);
}
while(i--){
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}
ARES peak=(-m_peak>p_peak)?-m_peak:p_peak;
hwc->currentpeak=peak;
if(peak>hwc->peakmax)
hwc->peakmax=peak;
//TRACE ("IC CPeak %f MPeak %f Max %f\n",hwc->currentpeak,hwc->peakmax,peak);
}
void AudioHardwareBuffer::CreatePeakTo(Peak *to)
{
if(!channelsused)return;
int chls=to->channels<channelsused?to->channels:channelsused;
ARES *sample=outputbufferARES;
for(int cl=0;cl<chls;cl++)
{
ARES m_peak=0,p_peak=0;
int i=samplesinbuffer;
if(int loop=i/8)
{
i-=8*loop;
do
{
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}while(--loop);
}
while(i--){
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}
ARES maxpeak=(-m_peak>p_peak)?-m_peak:p_peak;
to->p_current[cl]=maxpeak;
if(maxpeak>to->current_sum)to->current_sum=maxpeak;
if(to->p_max[cl]<maxpeak){
to->p_max[cl]=maxpeak;
if(bufferms>=1)to->p_maxdelaycounter[cl]=delayvalue; // 1000 ms max peak drop down
}
if(maxpeak>to->current_max)to->current_max=maxpeak;
}
for(int i=0;i<chls;i++)
if(to->p_current[i]!=0 || to->p_max[i]!=0){
to->peakused=true;
return;
}
to->peakused=false;
}
void AudioHardwareBuffer::CreatePeak(AudioHardwareBuffer *buffer,PanLaw *plaw)
{
int chls=buffer?buffer->channelsused:channelsused;
if(!chls)return;
ARES *sample=buffer?buffer->outputbufferARES:outputbufferARES;
for(int cl=0;cl<chls;cl++)
{
ARES m_peak=0,p_peak=0;
int i=samplesinbuffer;
if(int loop=i/8)
{
i-=8*loop;
do
{
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}while(--loop);
}
while(i--){
ARES h=*sample++;
if(h<m_peak)m_peak=h;else if(h>p_peak)p_peak=h;
}
if(plaw)
{
m_peak*=plaw->GetPanValue();
p_peak*=plaw->GetPanValue();
}
ARES maxpeak=peak.p_current[cl]=-m_peak>p_peak?-m_peak:p_peak;
if(maxpeak>peak.current_sum)peak.current_sum=maxpeak;
if(maxpeak>peak.current_max)peak.current_max=maxpeak;
if(peak.p_max[cl]<maxpeak){
peak.p_max[cl]=maxpeak;
if(bufferms>=1)peak.p_maxdelaycounter[cl]=delayvalue; // 1000 ms max peak drop down
}
}
for(int i=0;i<chls;i++)
if(peak.p_current[i]!=0 || peak.p_max[i]!=0){
peak.peakused=true;
return;
}
peak.peakused=false;
}
void AudioHardwareBuffer::CopyFromFrames(ARES *from,int frames,int tchannels)
{
switch(tchannels)
{
case 1:
{
memcpy(outputbufferARES,from,sizeof(ARES)*frames);
}
break;
case 2:
{
register ARES *to_l,*to_r;
to_l=to_r=outputbufferARES;
to_r+=samplesinbuffer;
// L/R > [L][R]
register int i=frames;
while(i--){
*to_l++=*from++;
*to_r++=*from++;
}
}
break;
default:
for(int c=0;c<tchannels;c++)
{
register ARES *fc=from,*to=outputbufferARES;
fc+=c;
to+=samplesinbuffer*c;
register int i=frames;
while(i--){
*to++=*fc;
fc+=tchannels;
}
}
break;
}
}
/*
void AudioHardwareBuffer::MulFloat(int samples,float mul)
{
if(mul!=1)
{
float *s=(float *)outputbufferARES;
if(int loop=samples/8)
{
samples-=8*loop;
do
{
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
}while(--loop);
}
while(samples--)
{
*s++ *=mul;
}
}
}
*/
void AudioHardwareBuffer::MulCon32(float *s,int samples,float mul)
{
mul*=LOGVOLUME_SIZE;
mul=logvolume_f[(int)mul];
if(mul!=1)
{
if(int loop=samples/8)
{
samples-=8*loop;
do
{
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
}while(--loop);
}
while(samples--)*s++ *=mul;
}
}
void AudioHardwareBuffer::MulCon(int samples,ARES mul)
{
mul*=LOGVOLUME_SIZE;
#ifdef ARES64
mul=logvolume[(int)mul];
#else
mul=logvolume_f[(int)mul];
#endif
if(mul==1)return;
ARES *s=outputbufferARES;
if(int loop=samples/8)
{
samples-=8*loop;
do
{
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
}while(--loop);
}
while(samples--)*s++ *=mul;
}
void AudioHardwareBuffer::Mul(int samples,ARES mul)
{
if(mul!=1)
{
ARES *s=(ARES *)outputbufferARES;
if(int loop=samples/8)
{
samples-=8*loop;
do
{
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
*s++ *=mul;
}while(--loop);
}
while(samples--)*s++ *=mul;
}
}
void AudioHardwareBuffer::CopyToFrames(ARES *to,int frames,int tchannels)
{
if(tchannels==1)
{
memcpy(to,outputbufferARES,frames*sizeof(ARES));
return;
}
if(tchannels==2)
{
for(int c=0;c<2;c++)
{
register ARES *from=outputbufferARES,*toc=to;
from+=samplesinbuffer*c;
toc+=c;
register int i=frames;
while(i--){
*toc=*from++;
toc+=2;
}
}
return;
}
for(int c=0;c<tchannels;c++)
{
register ARES *from=outputbufferARES,*toc=to;
from+=samplesinbuffer*c;
toc+=c;
register int i=frames;
while(i--){
*toc=*from++;
toc+=tchannels;
}
}
}
int AudioHardwareBuffer::GetFirstSampleOffset()
{
int foundsample=samplesinbuffer;
for(int chl=0;chl<channelsused;chl++)
{
ARES *c=outputbufferARES;
c+=samplesinbuffer*chl;
for(int i=0;i<samplesinbuffer;i++){
if(*c++!=0){
if(i<foundsample)foundsample=i;
break;
}
}
}