split audio/command stream export functions
into two other source files
This commit is contained in:
tildearrow
parent
510bcfb56d
commit
4776eaed68
4 changed files with 997 additions and 947 deletions
455
src/engine/wavOps.cpp
Normal file
455
src/engine/wavOps.cpp
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@ -0,0 +1,455 @@
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/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "engine.h"
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#include "../ta-log.h"
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#ifdef HAVE_SNDFILE
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#include "sfWrapper.h"
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#endif
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#define EXPORT_BUFSIZE 2048
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void _runExportThread(DivEngine* caller) {
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caller->runExportThread();
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}
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bool DivEngine::isExporting() {
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return exporting;
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}
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#ifdef HAVE_SNDFILE
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void DivEngine::runExportThread() {
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size_t fadeOutSamples=got.rate*exportFadeOut;
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size_t curFadeOutSample=0;
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bool isFadingOut=false;
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switch (exportMode) {
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case DIV_EXPORT_MODE_ONE: {
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SNDFILE* sf;
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SF_INFO si;
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SFWrapper sfWrap;
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si.samplerate=got.rate;
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si.channels=2;
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si.format=SF_FORMAT_WAV|SF_FORMAT_PCM_16;
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sf=sfWrap.doOpen(exportPath.c_str(),SFM_WRITE,&si);
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if (sf==NULL) {
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logE("could not open file for writing! (%s)",sf_strerror(NULL));
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exporting=false;
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return;
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}
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float* outBuf[3];
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outBuf[0]=new float[EXPORT_BUFSIZE];
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outBuf[1]=new float[EXPORT_BUFSIZE];
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outBuf[2]=new float[EXPORT_BUFSIZE*2];
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// take control of audio output
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deinitAudioBackend();
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playSub(false);
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logI("rendering to file...");
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while (playing) {
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size_t total=0;
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nextBuf(NULL,outBuf,0,2,EXPORT_BUFSIZE);
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if (totalProcessed>EXPORT_BUFSIZE) {
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logE("error: total processed is bigger than export bufsize! %d>%d",totalProcessed,EXPORT_BUFSIZE);
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totalProcessed=EXPORT_BUFSIZE;
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}
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for (int i=0; i<(int)totalProcessed; i++) {
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total++;
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if (isFadingOut) {
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double mul=(1.0-((double)curFadeOutSample/(double)fadeOutSamples));
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outBuf[2][i<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][i]))*mul;
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outBuf[2][1+(i<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][i]))*mul;
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if (++curFadeOutSample>=fadeOutSamples) {
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playing=false;
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break;
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}
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} else {
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outBuf[2][i<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][i]));
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outBuf[2][1+(i<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][i]));
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if (lastLoopPos>-1 && i>=lastLoopPos && totalLoops>=exportLoopCount) {
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logD("start fading out...");
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isFadingOut=true;
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}
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}
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}
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if (sf_writef_float(sf,outBuf[2],total)!=(int)total) {
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logE("error: failed to write entire buffer!");
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break;
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}
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}
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delete[] outBuf[0];
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delete[] outBuf[1];
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delete[] outBuf[2];
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if (sfWrap.doClose()!=0) {
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logE("could not close audio file!");
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}
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exporting=false;
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if (initAudioBackend()) {
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for (int i=0; i<song.systemLen; i++) {
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disCont[i].setRates(got.rate);
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disCont[i].setQuality(lowQuality);
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}
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if (!output->setRun(true)) {
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logE("error while activating audio!");
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}
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}
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logI("done!");
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break;
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}
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case DIV_EXPORT_MODE_MANY_SYS: {
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SNDFILE* sf[DIV_MAX_CHIPS];
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SF_INFO si[DIV_MAX_CHIPS];
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String fname[DIV_MAX_CHIPS];
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SFWrapper sfWrap[DIV_MAX_CHIPS];
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for (int i=0; i<song.systemLen; i++) {
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sf[i]=NULL;
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si[i].samplerate=got.rate;
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si[i].channels=disCont[i].dispatch->getOutputCount();
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si[i].format=SF_FORMAT_WAV|SF_FORMAT_PCM_16;
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}
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for (int i=0; i<song.systemLen; i++) {
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fname[i]=fmt::sprintf("%s_s%02d.wav",exportPath,i+1);
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logI("- %s",fname[i].c_str());
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sf[i]=sfWrap[i].doOpen(fname[i].c_str(),SFM_WRITE,&si[i]);
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if (sf[i]==NULL) {
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logE("could not open file for writing! (%s)",sf_strerror(NULL));
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for (int j=0; j<i; j++) {
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sfWrap[i].doClose();
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}
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return;
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}
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}
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float* outBuf[DIV_MAX_OUTPUTS];
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memset(outBuf,0,sizeof(void*)*DIV_MAX_OUTPUTS);
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outBuf[0]=new float[EXPORT_BUFSIZE];
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outBuf[1]=new float[EXPORT_BUFSIZE];
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short* sysBuf[DIV_MAX_CHIPS];
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for (int i=0; i<song.systemLen; i++) {
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sysBuf[i]=new short[EXPORT_BUFSIZE*disCont[i].dispatch->getOutputCount()];
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}
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// take control of audio output
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deinitAudioBackend();
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playSub(false);
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logI("rendering to files...");
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while (playing) {
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size_t total=0;
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nextBuf(NULL,outBuf,0,2,EXPORT_BUFSIZE);
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if (totalProcessed>EXPORT_BUFSIZE) {
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logE("error: total processed is bigger than export bufsize! %d>%d",totalProcessed,EXPORT_BUFSIZE);
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totalProcessed=EXPORT_BUFSIZE;
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}
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for (int j=0; j<(int)totalProcessed; j++) {
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total++;
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if (isFadingOut) {
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double mul=(1.0-((double)curFadeOutSample/(double)fadeOutSamples));
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for (int i=0; i<song.systemLen; i++) {
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for (int k=0; k<si[i].channels; k++) {
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if (disCont[i].bbOut[k]==NULL) {
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sysBuf[i][k+(j*si[i].channels)]=0;
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} else {
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sysBuf[i][k+(j*si[i].channels)]=(double)disCont[i].bbOut[k][j]*mul;
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}
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}
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}
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if (++curFadeOutSample>=fadeOutSamples) {
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playing=false;
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break;
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}
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} else {
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for (int i=0; i<song.systemLen; i++) {
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for (int k=0; k<si[i].channels; k++) {
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if (disCont[i].bbOut[k]==NULL) {
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sysBuf[i][k+(j*si[i].channels)]=0;
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} else {
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sysBuf[i][k+(j*si[i].channels)]=disCont[i].bbOut[k][j];
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}
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}
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}
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if (lastLoopPos>-1 && j>=lastLoopPos && totalLoops>=exportLoopCount) {
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logD("start fading out...");
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isFadingOut=true;
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}
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}
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}
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for (int i=0; i<song.systemLen; i++) {
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if (sf_writef_short(sf[i],sysBuf[i],total)!=(int)total) {
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logE("error: failed to write entire buffer! (%d)",i);
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break;
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}
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}
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}
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delete[] outBuf[0];
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delete[] outBuf[1];
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for (int i=0; i<song.systemLen; i++) {
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delete[] sysBuf[i];
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if (sfWrap[i].doClose()!=0) {
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logE("could not close audio file!");
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}
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}
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exporting=false;
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if (initAudioBackend()) {
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for (int i=0; i<song.systemLen; i++) {
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disCont[i].setRates(got.rate);
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disCont[i].setQuality(lowQuality);
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}
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if (!output->setRun(true)) {
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logE("error while activating audio!");
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}
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}
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logI("done!");
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break;
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}
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case DIV_EXPORT_MODE_MANY_CHAN: {
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// take control of audio output
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deinitAudioBackend();
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float* outBuf[3];
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outBuf[0]=new float[EXPORT_BUFSIZE];
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outBuf[1]=new float[EXPORT_BUFSIZE];
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outBuf[2]=new float[EXPORT_BUFSIZE*2];
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int loopCount=remainingLoops;
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logI("rendering to files...");
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for (int i=0; i<chans; i++) {
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SNDFILE* sf;
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SF_INFO si;
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SFWrapper sfWrap;
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String fname=fmt::sprintf("%s_c%02d.wav",exportPath,i+1);
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logI("- %s",fname.c_str());
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si.samplerate=got.rate;
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si.channels=2;
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si.format=SF_FORMAT_WAV|SF_FORMAT_PCM_16;
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sf=sfWrap.doOpen(fname.c_str(),SFM_WRITE,&si);
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if (sf==NULL) {
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logE("could not open file for writing! (%s)",sf_strerror(NULL));
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break;
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}
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for (int j=0; j<chans; j++) {
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bool mute=(j!=i);
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isMuted[j]=mute;
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}
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if (getChannelType(i)==5) {
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for (int j=i; j<chans; j++) {
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if (getChannelType(j)!=5) break;
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isMuted[j]=false;
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}
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}
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for (int j=0; j<chans; j++) {
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if (disCont[dispatchOfChan[j]].dispatch!=NULL) {
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disCont[dispatchOfChan[j]].dispatch->muteChannel(dispatchChanOfChan[j],isMuted[j]);
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}
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}
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curOrder=0;
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prevOrder=0;
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curFadeOutSample=0;
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lastLoopPos=-1;
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totalLoops=0;
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isFadingOut=false;
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if (exportFadeOut<=0.01) {
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remainingLoops=loopCount;
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} else {
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remainingLoops=-1;
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}
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playSub(false);
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while (playing) {
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size_t total=0;
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nextBuf(NULL,outBuf,0,2,EXPORT_BUFSIZE);
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if (totalProcessed>EXPORT_BUFSIZE) {
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logE("error: total processed is bigger than export bufsize! %d>%d",totalProcessed,EXPORT_BUFSIZE);
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totalProcessed=EXPORT_BUFSIZE;
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}
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for (int j=0; j<(int)totalProcessed; j++) {
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total++;
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if (isFadingOut) {
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double mul=(1.0-((double)curFadeOutSample/(double)fadeOutSamples));
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outBuf[2][j<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][j]))*mul;
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outBuf[2][1+(j<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][j]))*mul;
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if (++curFadeOutSample>=fadeOutSamples) {
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playing=false;
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break;
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}
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} else {
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outBuf[2][j<<1]=MAX(-1.0f,MIN(1.0f,outBuf[0][j]));
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outBuf[2][1+(j<<1)]=MAX(-1.0f,MIN(1.0f,outBuf[1][j]));
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if (lastLoopPos>-1 && j>=lastLoopPos && totalLoops>=exportLoopCount) {
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logD("start fading out...");
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isFadingOut=true;
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}
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}
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}
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if (sf_writef_float(sf,outBuf[2],total)!=(int)total) {
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logE("error: failed to write entire buffer!");
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break;
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}
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}
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if (sfWrap.doClose()!=0) {
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logE("could not close audio file!");
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}
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if (getChannelType(i)==5) {
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i++;
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while (true) {
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if (i>=chans) break;
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if (getChannelType(i)!=5) break;
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i++;
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}
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i--;
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}
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if (stopExport) break;
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}
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exporting=false;
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delete[] outBuf[0];
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delete[] outBuf[1];
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delete[] outBuf[2];
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for (int i=0; i<chans; i++) {
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isMuted[i]=false;
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if (disCont[dispatchOfChan[i]].dispatch!=NULL) {
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disCont[dispatchOfChan[i]].dispatch->muteChannel(dispatchChanOfChan[i],false);
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}
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}
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if (initAudioBackend()) {
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for (int i=0; i<song.systemLen; i++) {
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disCont[i].setRates(got.rate);
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disCont[i].setQuality(lowQuality);
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}
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if (!output->setRun(true)) {
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logE("error while activating audio!");
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}
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}
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logI("done!");
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break;
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}
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}
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stopExport=false;
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}
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#else
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void DivEngine::runExportThread() {
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}
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#endif
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bool DivEngine::shallSwitchCores() {
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// TODO: detect whether we should
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return true;
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}
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bool DivEngine::saveAudio(const char* path, int loops, DivAudioExportModes mode, double fadeOutTime) {
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#ifndef HAVE_SNDFILE
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logE("Furnace was not compiled with libsndfile. cannot export!");
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return false;
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#else
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exportPath=path;
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exportMode=mode;
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exportFadeOut=fadeOutTime;
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if (exportMode!=DIV_EXPORT_MODE_ONE) {
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// remove extension
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String lowerCase=exportPath;
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for (char& i: lowerCase) {
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if (i>='A' && i<='Z') i+='a'-'A';
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}
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size_t extPos=lowerCase.rfind(".wav");
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if (extPos!=String::npos) {
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exportPath=exportPath.substr(0,extPos);
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}
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}
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exporting=true;
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stopExport=false;
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stop();
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repeatPattern=false;
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setOrder(0);
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if (exportFadeOut<=0.01) {
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remainingLoops=loops;
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} else {
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remainingLoops=-1;
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}
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if (shallSwitchCores()) {
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bool isMutedBefore[DIV_MAX_CHANS];
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memcpy(isMutedBefore,isMuted,DIV_MAX_CHANS*sizeof(bool));
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quitDispatch();
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initDispatch(true);
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renderSamplesP();
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for (int i=0; i<chans; i++) {
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if (isMutedBefore[i]) {
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muteChannel(i,true);
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}
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}
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}
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exportLoopCount=loops;
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exportThread=new std::thread(_runExportThread,this);
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return true;
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#endif
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}
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void DivEngine::waitAudioFile() {
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if (exportThread!=NULL) {
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exportThread->join();
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}
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}
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bool DivEngine::haltAudioFile() {
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stopExport=true;
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stop();
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waitAudioFile();
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finishAudioFile();
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return true;
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}
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void DivEngine::finishAudioFile() {
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if (shallSwitchCores()) {
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bool isMutedBefore[DIV_MAX_CHANS];
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memcpy(isMutedBefore,isMuted,DIV_MAX_CHANS*sizeof(bool));
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quitDispatch();
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initDispatch(false);
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renderSamplesP();
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for (int i=0; i<chans; i++) {
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if (isMutedBefore[i]) {
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muteChannel(i,true);
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}
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}
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}
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}
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