mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-23 04:55:13 +00:00
commit
623c0efbba
6 changed files with 481 additions and 4 deletions
|
@ -465,6 +465,7 @@ src/engine/platform/scc.cpp
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src/engine/platform/ymz280b.cpp
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src/engine/platform/namcowsg.cpp
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src/engine/platform/rf5c68.cpp
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src/engine/platform/pcmdac.cpp
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src/engine/platform/dummy.cpp
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)
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@ -54,6 +54,7 @@
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#include "platform/su.h"
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#include "platform/swan.h"
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#include "platform/lynx.h"
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#include "platform/zxbeeper.h"
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#include "platform/bubsyswsg.h"
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#include "platform/n163.h"
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#include "platform/pet.h"
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@ -64,9 +65,9 @@
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#include "platform/scc.h"
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#include "platform/ymz280b.h"
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#include "platform/rf5c68.h"
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#include "platform/pcmdac.h"
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#include "platform/dummy.h"
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#include "../ta-log.h"
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#include "platform/zxbeeper.h"
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#include "song.h"
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void DivDispatchContainer::setRates(double gotRate) {
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@ -395,6 +396,9 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do
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dispatch=new DivPlatformNamcoWSG;
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((DivPlatformNamcoWSG*)dispatch)->setDeviceType(30);
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break;
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case DIV_SYSTEM_PCM_DAC:
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dispatch=new DivPlatformPCMDAC;
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break;
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case DIV_SYSTEM_DUMMY:
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dispatch=new DivPlatformDummy;
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break;
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370
src/engine/platform/pcmdac.cpp
Normal file
370
src/engine/platform/pcmdac.cpp
Normal file
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@ -0,0 +1,370 @@
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/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2022 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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#define _USE_MATH_DEFINES
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#include "pcmdac.h"
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#include "../engine.h"
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#include <math.h>
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// to ease the driver, freqency register is a 8.16 counter relative to output sample rate
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#define CHIP_FREQBASE 65536
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void DivPlatformPCMDAC::acquire(short* bufL, short* bufR, size_t start, size_t len) {
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const int depthScale=(15-outDepth);
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int output=0;
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for (size_t h=start; h<start+len; h++) {
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if (!chan.active || isMuted) {
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bufL[h]=0;
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bufR[h]=0;
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oscBuf->data[oscBuf->needle++]=0;
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continue;
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}
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if (chan.useWave || (chan.sample>=0 && chan.sample<parent->song.sampleLen)) {
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chan.audPos+=chan.freq>>16;
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chan.audSub+=(chan.freq&0xffff);
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if (chan.audSub>=0x10000) {
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chan.audSub-=0x10000;
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chan.audPos+=1;
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}
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if (chan.useWave) {
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if (chan.audPos>=(unsigned int)(chan.audLen<<1)) {
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chan.audPos=0;
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}
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output=(chan.ws.output[chan.audPos]^0x80)<<8;
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} else {
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DivSample* s=parent->getSample(chan.sample);
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if (s->samples>0) {
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if (chan.audPos>=s->samples) {
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if (s->loopStart>=0 && s->loopStart<(int)s->samples) {
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chan.audPos=s->loopStart;
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} else {
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chan.sample=-1;
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}
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}
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if (chan.audPos<s->samples) {
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output=s->data16[chan.audPos];
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}
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} else {
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chan.sample=-1;
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}
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}
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}
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output=output*chan.vol*chan.envVol/16384;
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oscBuf->data[oscBuf->needle++]=output;
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if (outStereo) {
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bufL[h]=((output*chan.panL)>>(depthScale+8))<<depthScale;
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bufR[h]=((output*chan.panR)>>(depthScale+8))<<depthScale;
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} else {
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output=(output>>depthScale)<<depthScale;
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bufL[h]=output;
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bufR[h]=output;
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}
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}
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}
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void DivPlatformPCMDAC::tick(bool sysTick) {
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chan.std.next();
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if (chan.std.vol.had) {
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chan.envVol=chan.std.vol.val;
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}
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if (chan.std.arp.had) {
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if (!chan.inPorta) {
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if (chan.std.arp.mode) {
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chan.baseFreq=NOTE_FREQUENCY(chan.std.arp.val);
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} else {
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chan.baseFreq=NOTE_FREQUENCY(chan.note+chan.std.arp.val);
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}
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}
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chan.freqChanged=true;
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} else {
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if (chan.std.arp.mode && chan.std.arp.finished) {
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chan.baseFreq=NOTE_FREQUENCY(chan.note);
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chan.freqChanged=true;
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}
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}
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if (chan.useWave && chan.std.wave.had) {
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if (chan.wave!=chan.std.wave.val || chan.ws.activeChanged()) {
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chan.wave=chan.std.wave.val;
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chan.ws.changeWave1(chan.wave);
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if (!chan.keyOff) chan.keyOn=true;
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}
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}
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if (chan.useWave && chan.active) {
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chan.ws.tick();
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}
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if (chan.std.pitch.had) {
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if (chan.std.pitch.mode) {
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chan.pitch2+=chan.std.pitch.val;
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CLAMP_VAR(chan.pitch2,-32768,32767);
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} else {
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chan.pitch2=chan.std.pitch.val;
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}
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chan.freqChanged=true;
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}
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if (chan.std.panL.had) {
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int val=chan.std.panL.val&0x7f;
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chan.panL=val*2;
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}
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if (chan.std.panR.had) {
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int val=chan.std.panR.val&0x7f;
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chan.panR=val*2;
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}
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if (chan.std.phaseReset.had) {
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if (chan.std.phaseReset.val==1) {
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chan.audPos=0;
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}
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}
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if (chan.freqChanged || chan.keyOn || chan.keyOff) {
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//DivInstrument* ins=parent->getIns(chan.ins,DIV_INS_AMIGA);
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double off=1.0;
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if (!chan.useWave && chan.sample>=0 && chan.sample<parent->song.sampleLen) {
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DivSample* s=parent->getSample(chan.sample);
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off=(s->centerRate>=1)?((double)s->centerRate/8363.0):1.0;
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}
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chan.freq=off*parent->calcFreq(chan.baseFreq,chan.pitch,false,2,chan.pitch2,chipClock,CHIP_FREQBASE);
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if (chan.freq>16777215) chan.freq=16777215;
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if (chan.keyOn) {
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if (!chan.std.vol.had) {
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chan.envVol=64;
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}
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chan.keyOn=false;
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}
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if (chan.keyOff) {
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chan.keyOff=false;
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}
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chan.freqChanged=false;
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}
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}
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int DivPlatformPCMDAC::dispatch(DivCommand c) {
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switch (c.cmd) {
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case DIV_CMD_NOTE_ON: {
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DivInstrument* ins=parent->getIns(chan.ins,DIV_INS_AMIGA);
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if (ins->amiga.useWave) {
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chan.useWave=true;
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chan.audLen=(ins->amiga.waveLen+1)>>1;
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if (chan.insChanged) {
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if (chan.wave<0) {
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chan.wave=0;
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chan.ws.setWidth(chan.audLen<<1);
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chan.ws.changeWave1(chan.wave);
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}
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}
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} else {
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chan.sample=ins->amiga.getSample(c.value);
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chan.useWave=false;
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}
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if (c.value!=DIV_NOTE_NULL) {
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chan.baseFreq=round(NOTE_FREQUENCY(c.value));
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}
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if (chan.useWave || chan.sample<0 || chan.sample>=parent->song.sampleLen) {
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chan.sample=-1;
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}
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if (chan.setPos) {
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chan.setPos=false;
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} else {
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chan.audPos=0;
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}
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chan.audSub=0;
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if (c.value!=DIV_NOTE_NULL) {
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chan.freqChanged=true;
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chan.note=c.value;
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}
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chan.active=true;
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chan.keyOn=true;
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chan.macroInit(ins);
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if (!parent->song.brokenOutVol && !chan.std.vol.will) {
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chan.envVol=64;
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}
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if (chan.useWave) {
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chan.ws.init(ins,chan.audLen<<1,255,chan.insChanged);
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}
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chan.insChanged=false;
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break;
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}
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case DIV_CMD_NOTE_OFF:
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chan.sample=-1;
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chan.active=false;
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chan.keyOff=true;
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chan.macroInit(NULL);
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break;
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case DIV_CMD_NOTE_OFF_ENV:
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case DIV_CMD_ENV_RELEASE:
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chan.std.release();
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break;
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case DIV_CMD_INSTRUMENT:
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if (chan.ins!=c.value || c.value2==1) {
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chan.ins=c.value;
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chan.insChanged=true;
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}
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break;
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case DIV_CMD_VOLUME:
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if (chan.vol!=c.value) {
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chan.vol=c.value;
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if (!chan.std.vol.has) {
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chan.envVol=64;
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}
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}
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break;
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case DIV_CMD_GET_VOLUME:
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return chan.vol;
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break;
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case DIV_CMD_PANNING:
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chan.panL=c.value;
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chan.panR=c.value2;
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break;
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case DIV_CMD_PITCH:
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chan.pitch=c.value;
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chan.freqChanged=true;
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break;
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case DIV_CMD_WAVE:
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if (!chan.useWave) break;
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chan.wave=c.value;
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chan.keyOn=true;
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chan.ws.changeWave1(chan.wave);
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break;
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case DIV_CMD_NOTE_PORTA: {
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DivInstrument* ins=parent->getIns(chan.ins,DIV_INS_AMIGA);
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chan.sample=ins->amiga.getSample(c.value2);
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int destFreq=round(NOTE_FREQUENCY(c.value2));
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bool return2=false;
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if (destFreq>chan.baseFreq) {
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chan.baseFreq+=c.value;
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if (chan.baseFreq>=destFreq) {
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chan.baseFreq=destFreq;
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return2=true;
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}
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} else {
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chan.baseFreq-=c.value;
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if (chan.baseFreq<=destFreq) {
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chan.baseFreq=destFreq;
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return2=true;
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}
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}
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chan.freqChanged=true;
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if (return2) {
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chan.inPorta=false;
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return 2;
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}
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break;
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}
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case DIV_CMD_LEGATO: {
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chan.baseFreq=round(NOTE_FREQUENCY(c.value+((chan.std.arp.will && !chan.std.arp.mode)?(chan.std.arp.val):(0))));
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chan.freqChanged=true;
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chan.note=c.value;
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break;
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}
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case DIV_CMD_PRE_PORTA:
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if (chan.active && c.value2) {
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if (parent->song.resetMacroOnPorta) chan.macroInit(parent->getIns(chan.ins,DIV_INS_AMIGA));
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}
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chan.inPorta=c.value;
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break;
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case DIV_CMD_SAMPLE_POS:
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if (chan.useWave) break;
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chan.audPos=c.value;
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chan.setPos=true;
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break;
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case DIV_CMD_GET_VOLMAX:
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return 255;
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break;
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case DIV_ALWAYS_SET_VOLUME:
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return 1;
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break;
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default:
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break;
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}
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return 1;
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}
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void DivPlatformPCMDAC::muteChannel(int ch, bool mute) {
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isMuted=mute;
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}
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void DivPlatformPCMDAC::forceIns() {
|
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chan.insChanged=true;
|
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chan.freqChanged=true;
|
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chan.audPos=0;
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chan.sample=-1;
|
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}
|
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|
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void* DivPlatformPCMDAC::getChanState(int ch) {
|
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return &chan;
|
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}
|
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|
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DivDispatchOscBuffer* DivPlatformPCMDAC::getOscBuffer(int ch) {
|
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return oscBuf;
|
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}
|
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|
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void DivPlatformPCMDAC::reset() {
|
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chan=DivPlatformPCMDAC::Channel();
|
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chan.std.setEngine(parent);
|
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chan.ws.setEngine(parent);
|
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chan.ws.init(NULL,32,255);
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}
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|
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bool DivPlatformPCMDAC::isStereo() {
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return true;
|
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}
|
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|
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DivMacroInt* DivPlatformPCMDAC::getChanMacroInt(int ch) {
|
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return &chan.std;
|
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}
|
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|
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void DivPlatformPCMDAC::notifyInsChange(int ins) {
|
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if (chan.ins==ins) {
|
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chan.insChanged=true;
|
||||
}
|
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}
|
||||
|
||||
void DivPlatformPCMDAC::notifyWaveChange(int wave) {
|
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if (chan.useWave && chan.wave==wave) {
|
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chan.ws.changeWave1(wave);
|
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}
|
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}
|
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|
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void DivPlatformPCMDAC::notifyInsDeletion(void* ins) {
|
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chan.std.notifyInsDeletion((DivInstrument*)ins);
|
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}
|
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|
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void DivPlatformPCMDAC::setFlags(unsigned int flags) {
|
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// default to 44100Hz 16-bit stereo
|
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if (!flags) flags=0x1f0000|44099;
|
||||
rate=(flags&0xffff)+1;
|
||||
// rate can't be too low or the resampler will break
|
||||
if (rate<1000) rate=1000;
|
||||
chipClock=rate;
|
||||
outDepth=(flags>>16)&0xf;
|
||||
outStereo=(flags>>20)&1;
|
||||
}
|
||||
|
||||
int DivPlatformPCMDAC::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
|
||||
parent=p;
|
||||
dumpWrites=false;
|
||||
skipRegisterWrites=false;
|
||||
oscBuf=new DivDispatchOscBuffer;
|
||||
isMuted=false;
|
||||
setFlags(flags);
|
||||
reset();
|
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return 1;
|
||||
}
|
||||
|
||||
void DivPlatformPCMDAC::quit() {
|
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delete oscBuf;
|
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}
|
99
src/engine/platform/pcmdac.h
Normal file
99
src/engine/platform/pcmdac.h
Normal file
|
@ -0,0 +1,99 @@
|
|||
/**
|
||||
* Furnace Tracker - multi-system chiptune tracker
|
||||
* Copyright (C) 2021-2022 tildearrow and contributors
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef _PCM_DAC_H
|
||||
#define _PCM_DAC_H
|
||||
|
||||
#include "../dispatch.h"
|
||||
#include <queue>
|
||||
#include "../macroInt.h"
|
||||
#include "../waveSynth.h"
|
||||
|
||||
class DivPlatformPCMDAC: public DivDispatch {
|
||||
struct Channel {
|
||||
int freq, baseFreq, pitch, pitch2;
|
||||
unsigned int audLoc;
|
||||
unsigned short audLen;
|
||||
unsigned int audPos;
|
||||
int audSub;
|
||||
int sample, wave, ins;
|
||||
int note;
|
||||
int panL, panR;
|
||||
bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, useWave, setPos;
|
||||
int vol, envVol;
|
||||
DivMacroInt std;
|
||||
DivWaveSynth ws;
|
||||
void macroInit(DivInstrument* which) {
|
||||
std.init(which);
|
||||
pitch2=0;
|
||||
}
|
||||
Channel():
|
||||
freq(0),
|
||||
baseFreq(0),
|
||||
pitch(0),
|
||||
pitch2(0),
|
||||
audLoc(0),
|
||||
audLen(0),
|
||||
audPos(0),
|
||||
audSub(0),
|
||||
sample(-1),
|
||||
wave(-1),
|
||||
ins(-1),
|
||||
note(0),
|
||||
panL(255),
|
||||
panR(255),
|
||||
active(false),
|
||||
insChanged(true),
|
||||
freqChanged(false),
|
||||
keyOn(false),
|
||||
keyOff(false),
|
||||
inPorta(false),
|
||||
useWave(false),
|
||||
setPos(false),
|
||||
vol(255),
|
||||
envVol(64) {}
|
||||
};
|
||||
Channel chan;
|
||||
DivDispatchOscBuffer* oscBuf;
|
||||
bool isMuted;
|
||||
int outDepth;
|
||||
bool outStereo;
|
||||
|
||||
friend void putDispatchChan(void*,int,int);
|
||||
|
||||
public:
|
||||
void acquire(short* bufL, short* bufR, size_t start, size_t len);
|
||||
int dispatch(DivCommand c);
|
||||
void* getChanState(int chan);
|
||||
DivDispatchOscBuffer* getOscBuffer(int chan);
|
||||
void reset();
|
||||
void forceIns();
|
||||
void tick(bool sysTick=true);
|
||||
void muteChannel(int ch, bool mute);
|
||||
bool isStereo();
|
||||
DivMacroInt* getChanMacroInt(int ch);
|
||||
void setFlags(unsigned int flags);
|
||||
void notifyInsChange(int ins);
|
||||
void notifyWaveChange(int wave);
|
||||
void notifyInsDeletion(void* ins);
|
||||
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
|
||||
void quit();
|
||||
};
|
||||
|
||||
#endif
|
|
@ -894,6 +894,7 @@ const int availableSystems[]={
|
|||
DIV_SYSTEM_MSM6258,
|
||||
DIV_SYSTEM_MSM6295,
|
||||
DIV_SYSTEM_RF5C68,
|
||||
DIV_SYSTEM_PCM_DAC,
|
||||
0 // don't remove this last one!
|
||||
};
|
||||
|
||||
|
|
|
@ -609,16 +609,18 @@ void FurnaceGUI::drawSysConf(int chan, DivSystem type, unsigned int& flags, bool
|
|||
break;
|
||||
}
|
||||
case DIV_SYSTEM_PCM_DAC: {
|
||||
// default to 44100Hz 16-bit stereo
|
||||
if (!flags) copyOfFlags=flags=0x1f0000|44099;
|
||||
int sampRate=(flags&65535)+1;
|
||||
int bitDepth=((flags>>16)&15)+1;
|
||||
bool stereo=(flags>>20)&1;
|
||||
ImGui::Text("Output rate:");
|
||||
if (CWSliderInt("##SampRate",&sampRate,1,65536)) {
|
||||
if (sampRate<1) sampRate=1;
|
||||
if (CWSliderInt("##SampRate",&sampRate,1000,65536)) {
|
||||
if (sampRate<1000) sampRate=1000;
|
||||
if (sampRate>65536) sampRate=65536;
|
||||
copyOfFlags=(flags&(~65535))|(sampRate-1);
|
||||
} rightClickable
|
||||
ImGui::Text("Output depth:");
|
||||
ImGui::Text("Output bit depth:");
|
||||
if (CWSliderInt("##BitDepth",&bitDepth,1,16)) {
|
||||
if (bitDepth<1) bitDepth=1;
|
||||
if (bitDepth>16) bitDepth=16;
|
||||
|
|
Loading…
Reference in a new issue