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furnace/src/engine/platform/es5506.cpp
tildearrow 29dfeccfe7 change chan osc range - PLEASE READ 
as of now the range is ~32768, either from -16384 to 16383, or 0 to 32767.
it previously was -32768 to 32767 (~65536).

this change was made to better suit chips that only output a positive value.
if you are working on a new chip, update your code and shift right by one if necessary.
2023-06-16 17:30:11 -05:00

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 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.
*/
#include "es5506.h"
#include "../engine.h"
#include "../../ta-log.h"
#include <math.h>
#include <map>
#define PITCH_OFFSET ((double)(16*2048*(chanMax+1)))
#define NOTE_ES5506(c,note) (parent->calcBaseFreq(chipClock,chan[c].pcm.freqOffs,note,false))
#define rWrite(a,...) {if(!skipRegisterWrites) {hostIntf32.emplace(4,(a),__VA_ARGS__); }}
//#define rRead(a,st,...) {hostIntf32.emplace(st,4,(a),__VA_ARGS__);}
#define immWrite(a,...) {hostIntf32.emplace(4,(a),__VA_ARGS__);}
#define pageWrite(p,a,...) \
if (!skipRegisterWrites) { \
if (curPage!=(p)) { \
curPage=(p); \
rWrite(0xf,curPage); \
} \
rWrite((a),__VA_ARGS__); \
}
#define pageWriteMask(p,pm,a,...) \
if (!skipRegisterWrites) { \
if ((curPage&(pm))!=((p)&(pm))) { \
curPage=(curPage&~(pm))|((p)&(pm)); \
rWrite(0xf,curPage,(pm)); \
} \
rWrite((a),__VA_ARGS__); \
}
#define pageReadMask(p,pm,a,st,...) \
if (!skipRegisterWrites) { \
if ((curPage&(pm))!=((p)&(pm))) { \
curPage=(curPage&~(pm))|((p)&(pm)); \
rWrite(0xf,curPage,(pm)); \
} \
rRead(st,(a),__VA_ARGS__); \
}
const char* regCheatSheetES5506[]={
"CR", "00|00",
"FC", "00|01",
"LVOL", "00|02",
"LVRAMP", "00|03",
"RVOL", "00|04",
"RVRAMP", "00|05",
"ECOUNT", "00|06",
"K2", "00|07",
"K2RAMP", "00|08",
"K1", "00|09",
"K1RAMP", "00|0A",
"ACTV", "00|0B",
"MODE", "00|0C",
"POT", "00|0D",
"IRQV", "00|0E",
"PAGE", "00|0F",
"CR", "20|00",
"START", "20|01",
"END", "20|02",
"ACCUM", "20|03",
"O4(n-1)", "20|04",
"O3(n-2)", "20|05",
"O3(n-1)", "20|06",
"O2(n-2)", "20|07",
"O2(n-1)", "20|08",
"O1(n-1)", "20|09",
"W_ST", "20|0A",
"W_END", "20|0B",
"LR_END", "20|0C",
"POT", "20|0D",
"IRQV", "20|0E",
"PAGE", "20|0F",
"CH0L", "40|00",
"CH0R", "40|01",
"CH1L", "40|02",
"CH1R", "40|03",
"CH2L", "40|04",
"CH2R", "40|05",
"CH3L", "40|06",
"CH3R", "40|07",
"CH4L", "40|08",
"CH4R", "40|09",
"CH5L", "40|0A",
"CH5R", "40|0B",
"POT", "40|0D",
"IRQV", "40|0E",
"PAGE", "40|0F",
NULL
};
const char** DivPlatformES5506::getRegisterSheet() {
return regCheatSheetES5506;
}
void DivPlatformES5506::acquire(short** buf, size_t len) {
for (size_t h=0; h<len; h++) {
// convert 32 bit access to 8 bit host interface
while (!hostIntf32.empty()) {
QueuedHostIntf w=hostIntf32.front();
if (w.isRead && (w.read!=NULL)) {
hostIntf8.emplace(w.state,0,w.addr,w.read,w.mask);
hostIntf8.emplace(w.state,1,w.addr,w.read,w.mask);
hostIntf8.emplace(w.state,2,w.addr,w.read,w.mask);
hostIntf8.emplace(w.state,3,w.addr,w.read,w.mask,w.delay);
} else {
hostIntf8.emplace(0,w.addr,w.val,w.mask);
hostIntf8.emplace(1,w.addr,w.val,w.mask);
hostIntf8.emplace(2,w.addr,w.val,w.mask);
hostIntf8.emplace(3,w.addr,w.val,w.mask,w.delay);
}
hostIntf32.pop();
}
es5506.tick_perf();
if (cycle>0) { // wait until delay
cycle-=2;
} else while (!hostIntf8.empty()) {
QueuedHostIntf w=hostIntf8.front();
unsigned char shift=24-(w.step<<3);
if (w.isRead) {
logE("READING?!");
hostIntf8.pop();
} else {
unsigned int mask=(w.mask>>shift)&0xff;
if ((mask==0xff) || isMasked) {
if (mask==0xff) {
maskedVal=(w.val>>shift)&0xff;
}
es5506.host_w((w.addr<<2)+w.step,maskedVal);
if(dumpWrites) {
addWrite((w.addr<<2)+w.step,maskedVal);
}
isMasked=false;
if ((w.step==3) && (w.delay>0)) {
cycle+=w.delay;
}
hostIntf8.pop();
} else if (!isMasked) {
maskedVal=((w.val>>shift)&mask)|(es5506.host_r((w.addr<<2)+w.step)&~mask);
isMasked=true;
}
if (cycle>0) break;
}
}
for (int o=0; o<6; o++) {
buf[(o<<1)|0][h]=es5506.lout(o);
buf[(o<<1)|1][h]=es5506.rout(o);
}
for (int i=chanMax; i>=0; i--) {
oscBuf[i]->data[oscBuf[i]->needle++]=(es5506.voice_lout(i)+es5506.voice_rout(i))>>6;
}
}
}
void DivPlatformES5506::e_pin(bool state) {
}
void DivPlatformES5506::irqb(bool state) {
/*
rRead(0x0e,0x80,&irqv,0x9f);
irqTrigger=true;
*/
}
void DivPlatformES5506::tick(bool sysTick) {
for (int i=0; i<=chanMax; i++) {
chan[i].std.next();
DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_ES5506);
signed int k1=chan[i].k1Prev,k2=chan[i].k2Prev;
// volume/panning macros
if (chan[i].std.vol.had) {
const int nextVol=VOL_SCALE_LOG((0xfff*chan[i].vol)/0xff,(0xfff*chan[i].std.vol.val)/chan[i].volMacroMax,0xfff);
if (chan[i].outVol!=nextVol) {
chan[i].outVol=nextVol;
chan[i].volChanged.lVol=1;
chan[i].volChanged.rVol=1;
}
}
if (chan[i].std.panL.had) {
const int nextLVol=VOL_SCALE_LOG((0xfff*chan[i].lVol)/0xff,(0xfff*chan[i].std.panL.val)/chan[i].panMacroMax,0xfff);
if (chan[i].outLVol!=nextLVol) {
chan[i].outLVol=nextLVol;
chan[i].volChanged.lVol=1;
}
}
if (chan[i].std.panR.had) {
const int nextRVol=VOL_SCALE_LOG((0xfff*chan[i].rVol)/0xff,(0xfff*chan[i].std.panR.val)/chan[i].panMacroMax,0xfff);
if (chan[i].outRVol!=nextRVol) {
chan[i].outRVol=nextRVol;
chan[i].volChanged.rVol=1;
}
}
// arpeggio/pitch macros, frequency related
if (NEW_ARP_STRAT) {
chan[i].handleArp();
} else if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
chan[i].nextNote=parent->calcArp(chan[i].note,chan[i].std.arp.val);
}
chan[i].noteChanged.note=1;
}
if (chan[i].std.pitch.had) {
if (chan[i].std.pitch.mode) {
chan[i].pitch2+=chan[i].std.pitch.val;
CLAMP_VAR(chan[i].pitch2,-2048,2048);
} else {
chan[i].pitch2=chan[i].std.pitch.val;
}
chan[i].freqChanged=true;
}
// phase reset macro
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1) {
chan[i].keyOn=true;
}
}
// filter macros
if (chan[i].std.duty.had) {
if (chan[i].filter.mode!=DivInstrumentES5506::Filter::FilterMode(chan[i].std.duty.val&3)) {
chan[i].filter.mode=DivInstrumentES5506::Filter::FilterMode(chan[i].std.duty.val&3);
chan[i].filterChanged.mode=1;
}
}
if (chan[i].std.ex1.had) {
switch (chan[i].std.ex1.mode) {
case 0: // absolute
if (chan[i].filter.k1!=(chan[i].std.ex1.val&0xffff)) {
chan[i].filter.k1=chan[i].std.ex1.val&0xffff;
chan[i].filterChanged.k1=1;
}
break;
case 1: // relative
if (chan[i].k1Offs!=chan[i].std.ex1.val) {
chan[i].k1Offs=chan[i].std.ex1.val;
chan[i].filterChanged.k1=1;
}
break;
default:
break;
}
}
if (chan[i].std.ex2.had) {
switch (chan[i].std.ex2.mode) {
case 0: // absolute
if (chan[i].filter.k2!=(chan[i].std.ex2.val&0xffff)) {
chan[i].filter.k2=chan[i].std.ex2.val&0xffff;
chan[i].filterChanged.k2=1;
}
break;
case 1: // relative
if (chan[i].k2Offs!=chan[i].std.ex1.val) {
chan[i].k2Offs=chan[i].std.ex1.val;
chan[i].filterChanged.k2=1;
}
break;
default:
break;
}
}
// envelope macros
if (chan[i].std.ex3.had) {
if (chan[i].envelope.ecount!=(chan[i].std.ex3.val&0x1ff)) {
chan[i].envelope.ecount=chan[i].std.ex3.val&0x1ff;
chan[i].envChanged.ecount=1;
}
}
if (chan[i].std.ex4.had) {
if (chan[i].envelope.lVRamp!=chan[i].std.ex4.val) {
chan[i].envelope.lVRamp=chan[i].std.ex4.val;
chan[i].envChanged.lVRamp=1;
}
}
if (chan[i].std.ex5.had) {
if (chan[i].envelope.rVRamp!=chan[i].std.ex5.val) {
chan[i].envelope.rVRamp=chan[i].std.ex5.val;
chan[i].envChanged.rVRamp=1;
}
}
if (chan[i].std.ex6.had) {
if (chan[i].envelope.k1Ramp!=chan[i].std.ex6.val) {
chan[i].envelope.k1Ramp=chan[i].std.ex6.val;
chan[i].envChanged.k1Ramp=1;
}
}
if (chan[i].std.ex7.had) {
if (chan[i].envelope.k2Ramp!=chan[i].std.ex7.val) {
chan[i].envelope.k2Ramp=chan[i].std.ex7.val;
chan[i].envChanged.k2Ramp=1;
}
}
if (chan[i].std.ex8.had) {
if (chan[i].envelope.k1Slow!=(bool)(chan[i].std.ex8.val&1)) {
chan[i].envelope.k1Slow=chan[i].std.ex8.val&1;
chan[i].envChanged.k1Ramp=1;
}
if (chan[i].envelope.k2Slow!=(bool)(chan[i].std.ex8.val&2)) {
chan[i].envelope.k2Slow=chan[i].std.ex8.val&2;
chan[i].envChanged.k2Ramp=1;
}
}
// filter slide
if (!chan[i].keyOn) {
if (chan[i].k1Slide!=0 && chan[i].filter.k1>0 && chan[i].filter.k1<65535) {
signed int next=CLAMP(chan[i].filter.k1+chan[i].k1Slide,0,65535);
if (chan[i].filter.k1!=next) {
chan[i].filter.k1=next;
chan[i].filterChanged.k1=1;
}
}
if (chan[i].k2Slide!=0 && chan[i].filter.k2>0 && chan[i].filter.k2<65535) {
signed int next=CLAMP(chan[i].filter.k2+chan[i].k2Slide,0,65535);
if (chan[i].filter.k2!=next) {
chan[i].filter.k2=next;
chan[i].filterChanged.k2=1;
}
}
}
// channel assignment
if (chan[i].active && chan[i].std.fb.had) {
const unsigned char ca=CLAMP(chan[i].std.fb.val,0,5);
if (chan[i].ca!=ca) {
chan[i].ca=ca;
if (!chan[i].keyOn) {
chan[i].volChanged.ca=1;
}
}
}
// control macros
if (chan[i].active && chan[i].std.alg.had) {
if (chan[i].pcm.pause!=(bool)(chan[i].std.alg.val&1)) {
chan[i].pcm.pause=chan[i].std.alg.val&1;
if (!chan[i].keyOn) {
pageWriteMask(0x00|i,0x5f,0x00,chan[i].pcm.pause?0x0002:0x0000,0x0002);
}
}
if (chan[i].pcm.direction!=(bool)(chan[i].std.alg.val&2)) {
chan[i].pcm.direction=chan[i].std.alg.val&2;
if (!chan[i].keyOn) {
pageWriteMask(0x00|i,0x5f,0x00,chan[i].pcm.direction?0x0040:0x0000,0x0040);
}
}
}
if (chan[i].pcm.isNoteMap) {
// note map macros
if (chan[i].std.wave.had) {
if (chan[i].std.wave.val>=0 && chan[i].std.wave.val<120) {
if (chan[i].pcm.next!=chan[i].std.wave.val) {
chan[i].pcm.next=chan[i].std.wave.val;
chan[i].pcmChanged.index=1;
}
}
}
} else if (!chan[i].pcm.isNoteMap) {
if (chan[i].std.wave.had) {
if (chan[i].std.wave.val>=0 && chan[i].std.wave.val<parent->song.sampleLen) {
if (chan[i].pcm.next!=chan[i].std.wave.val) {
chan[i].pcm.next=chan[i].std.wave.val;
chan[i].pcmChanged.index=1;
}
}
}
}
// update registers
if (chan[i].volChanged.changed) {
// calculate volume (16 bit)
if (chan[i].volChanged.lVol) {
chan[i].resLVol=VOL_SCALE_LOG(chan[i].outVol,chan[i].outLVol,0xfff);
chan[i].resLVol-=volScale;
if (chan[i].resLVol<0) chan[i].resLVol=0;
chan[i].resLVol<<=4;
if (!chan[i].keyOn && chan[i].active) {
pageWrite(0x00|i,0x02,chan[i].resLVol);
}
}
if (chan[i].volChanged.rVol) {
chan[i].resRVol=VOL_SCALE_LOG(chan[i].outVol,chan[i].outRVol,0xfff);
chan[i].resRVol-=volScale;
if (chan[i].resRVol<0) chan[i].resRVol=0;
chan[i].resRVol<<=4;
if (!chan[i].keyOn && chan[i].active) {
pageWrite(0x00|i,0x04,chan[i].resRVol);
}
}
if (chan[i].volChanged.ca) {
pageWriteMask(0x00|i,0x5f,0x00,(chan[i].ca<<10),0x1c00);
}
chan[i].volChanged.changed=0;
}
if (chan[i].pcmChanged.changed) {
if (chan[i].pcmChanged.index) {
const int next=chan[i].pcm.next;
bool sampleValid=false;
if (((ins->amiga.useNoteMap) && (next>=0 && next<120)) ||
((!ins->amiga.useNoteMap) && (next>=0 && next<parent->song.sampleLen))) {
DivInstrumentAmiga::SampleMap& noteMapind=ins->amiga.noteMap[next];
int sample=next;
if (ins->amiga.useNoteMap) {
sample=noteMapind.map;
}
if (sample>=0 && sample<parent->song.sampleLen) {
const unsigned int offES5506=sampleOffES5506[sample];
sampleValid=true;
chan[i].pcm.index=sample;
chan[i].pcm.isNoteMap=ins->amiga.useNoteMap;
DivSample* s=parent->getSample(sample);
// get frequency offset
double off=1.0;
double center=(double)s->centerRate;
if (center<1) {
off=1.0;
} else {
off=(double)center/8363.0;
}
if (ins->amiga.useNoteMap) {
chan[i].pcm.note=next;
}
// get loop mode
DivSampleLoopMode loopMode=s->isLoopable()?s->loopMode:DIV_SAMPLE_LOOP_MAX;
const unsigned int start=offES5506<<10;
const unsigned int length=s->samples-1;
const unsigned int end=start+(length<<11);
const unsigned int nextBank=(offES5506>>22)&3;
const double nextFreqOffs=PITCH_OFFSET*off;
chan[i].pcm.loopMode=loopMode;
chan[i].pcm.bank=nextBank;
chan[i].pcm.start=start;
chan[i].pcm.end=end;
chan[i].pcm.length=length;
if ((chan[i].pcm.loopMode!=loopMode) || (chan[i].pcm.bank!=nextBank)) {
chan[i].pcm.loopMode=loopMode;
chan[i].pcm.bank=nextBank;
chan[i].pcmChanged.loopBank=1;
}
if (chan[i].pcm.nextFreqOffs!=nextFreqOffs) {
chan[i].pcm.nextFreqOffs=nextFreqOffs;
chan[i].noteChanged.offs=1;
}
}
}
if (sampleValid) {
if (!chan[i].keyOn) {
pageWrite(0x20|i,0x03,(chan[i].pcm.direction)?chan[i].pcm.end:chan[i].pcm.start);
}
chan[i].pcmChanged.slice=1;
}
chan[i].pcmChanged.index=0;
}
if (chan[i].pcmChanged.slice) {
if (!chan[i].keyOn) {
if (chan[i].pcm.index>=0 && chan[i].pcm.index<parent->song.sampleLen) {
// get loop mode
DivSample* s=parent->getSample(chan[i].pcm.index);
const unsigned int start=sampleOffES5506[chan[i].pcm.index]<<10;
const unsigned int nextLoopStart=(start+(s->loopStart<<11))&0xfffff800;
const unsigned int nextLoopEnd=(start+((s->loopEnd-1)<<11))&0xffffff80;
if ((chan[i].pcm.loopStart!=nextLoopStart) || (chan[i].pcm.loopEnd!=nextLoopEnd)) {
chan[i].pcm.loopStart=nextLoopStart;
chan[i].pcm.loopEnd=nextLoopEnd;
chan[i].pcmChanged.position=1;
}
}
}
chan[i].pcmChanged.slice=0;
}
if (chan[i].pcmChanged.position) {
if (!chan[i].keyOn) {
pageWrite(0x20|i,0x01,(chan[i].pcm.loopMode==DIV_SAMPLE_LOOP_MAX)?chan[i].pcm.start:chan[i].pcm.loopStart);
pageWrite(0x20|i,0x02,(chan[i].pcm.loopMode==DIV_SAMPLE_LOOP_MAX)?chan[i].pcm.end:chan[i].pcm.loopEnd);
}
chan[i].pcmChanged.position=0;
}
if (chan[i].pcmChanged.loopBank) {
if (!chan[i].keyOn) {
unsigned int loopFlag=(chan[i].pcm.bank<<14)|(chan[i].pcm.direction?0x0040:0x0000);
chan[i].isReverseLoop=false;
switch (chan[i].pcm.loopMode) {
case DIV_SAMPLE_LOOP_FORWARD: // Forward loop
loopFlag|=0x0008;
break;
/*
case DIV_SAMPLE_LOOP_BACKWARD: // Backward loop: IRQ enable
loopFlag|=0x0038;
chan[i].isReverseLoop=true;
break;
*/
case DIV_SAMPLE_LOOP_PINGPONG: // Pingpong loop: Hardware support
loopFlag|=0x0018;
break;
case DIV_SAMPLE_LOOP_MAX: // no loop
default:
break;
}
// Set loop mode & Bank
pageWriteMask(0x00|i,0x5f,0x00,loopFlag,0xe0fd);
}
chan[i].pcmChanged.loopBank=0;
}
chan[i].pcmChanged.dummy=0;
}
if (chan[i].filterChanged.changed) {
if (!chan[i].keyOn) {
if (chan[i].filterChanged.mode) {
pageWriteMask(0x00|i,0x5f,0x00,(chan[i].filter.mode<<8),0x0300);
}
if (chan[i].filterChanged.k2) {
if (chan[i].std.ex2.mode!=0) { // Relative
k2=CLAMP(chan[i].filter.k2+chan[i].k2Offs,0,65535);
} else {
k2=chan[i].filter.k2;
}
}
if (chan[i].filterChanged.k1) {
if (chan[i].std.ex1.mode!=0) { // Relative
k1=CLAMP(chan[i].filter.k1+chan[i].k1Offs,0,65535);
} else {
k1=chan[i].filter.k1;
}
}
}
chan[i].filterChanged.changed=0;
}
if (chan[i].envChanged.changed) {
if (!chan[i].keyOn) {
if (chan[i].envChanged.lVRamp) {
pageWrite(0x00|i,0x03,((unsigned char)chan[i].envelope.lVRamp)<<8);
}
if (chan[i].envChanged.rVRamp) {
pageWrite(0x00|i,0x05,((unsigned char)chan[i].envelope.rVRamp)<<8);
}
if (chan[i].envChanged.ecount) {
pageWrite(0x00|i,0x06,chan[i].envelope.ecount);
}
if (chan[i].envChanged.k2Ramp) {
pageWrite(0x00|i,0x08,(((unsigned char)chan[i].envelope.k2Ramp)<<8)|(chan[i].envelope.k2Slow?1:0));
}
if (chan[i].envChanged.k1Ramp) {
pageWrite(0x00|i,0x0a,(((unsigned char)chan[i].envelope.k1Ramp)<<8)|(chan[i].envelope.k1Slow?1:0));
}
}
chan[i].envChanged.changed=0;
}
if (chan[i].noteChanged.changed) { // note value changed or frequency offset is changed
if (chan[i].noteChanged.offs) {
if (chan[i].pcm.freqOffs!=chan[i].pcm.nextFreqOffs) {
chan[i].pcm.freqOffs=chan[i].pcm.nextFreqOffs;
chan[i].nextFreq=NOTE_ES5506(i,chan[i].currNote);
chan[i].noteChanged.freq=1;
chan[i].freqChanged=true;
}
}
if (chan[i].noteChanged.note) {
if (chan[i].currNote!=chan[i].nextNote) {
chan[i].currNote=chan[i].nextNote;
const int nextFreq=NOTE_ES5506(i,chan[i].nextNote);
if (chan[i].nextFreq!=nextFreq) {
chan[i].nextFreq=nextFreq;
chan[i].noteChanged.freq=1;
}
}
}
if (chan[i].noteChanged.freq) {
if (chan[i].baseFreq!=chan[i].nextFreq) {
chan[i].baseFreq=chan[i].nextFreq;
chan[i].freqChanged=true;
}
}
chan[i].noteChanged.changed=0;
}
if (chan[i].pcm.setPos) {
if (chan[i].active) {
const unsigned int start=chan[i].pcm.start;
const unsigned int end=chan[i].pcm.length;
const unsigned int pos=chan[i].pcm.direction?(end-chan[i].pcm.nextPos):chan[i].pcm.nextPos;
if ((chan[i].pcm.direction && pos>0) || ((!chan[i].pcm.direction) && pos<end)) {
pageWrite(0x20|i,0x03,start+(pos<<11));
}
} else {
// force keyon
chan[i].keyOn=true;
}
chan[i].pcm.setPos=false;
} else {
chan[i].pcm.nextPos=0;
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
chan[i].freq=CLAMP(parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,2,chan[i].pitch2,chipClock,chan[i].pcm.freqOffs),0,0x1ffff);
if (chan[i].keyOn) {
if (chan[i].pcm.index>=0 && chan[i].pcm.index<parent->song.sampleLen) {
const int ind=chan[i].pcm.index;
DivSample* s=parent->getSample(ind);
// get frequency offset
double off=1.0;
double center=(double)s->centerRate;
if (center<1) {
off=1.0;
} else {
off=(double)center/8363.0;
}
chan[i].pcm.loopStart=(chan[i].pcm.start+(s->loopStart<<11))&0xfffff800;
chan[i].pcm.loopEnd=(chan[i].pcm.start+((s->loopEnd-1)<<11))&0xffffff80;
chan[i].pcm.freqOffs=PITCH_OFFSET*off;
unsigned int startPos=chan[i].pcm.direction?chan[i].pcm.end:chan[i].pcm.start;
if (chan[i].pcm.nextPos) {
const unsigned int start=chan[i].pcm.start;
const unsigned int end=chan[i].pcm.length;
startPos=start+((chan[i].pcm.direction?(end-chan[i].pcm.nextPos):(chan[i].pcm.nextPos))<<11);
chan[i].pcm.nextPos=0;
}
chan[i].k1Prev=0xffff;
chan[i].k2Prev=0xffff;
pageWriteMask(0x00|i,0x5f,0x00,0x0303); // Wipeout CR
pageWrite(0x00|i,0x06,0); // Clear ECOUNT
pageWrite(0x20|i,0x03,startPos); // Set ACCUM to start address
pageWrite(0x00|i,0x07,0xffff); // Set K1 and K2 to 0xffff
pageWrite(0x00|i,0x09,0xffff,~0,(chanMax+1)*4*2); // needs to 4 sample period delay
pageWrite(0x00|i,0x01,chan[i].freq);
pageWrite(0x20|i,0x01,(chan[i].pcm.loopMode==DIV_SAMPLE_LOOP_MAX)?chan[i].pcm.start:chan[i].pcm.loopStart);
pageWrite(0x20|i,0x02,(chan[i].pcm.loopMode==DIV_SAMPLE_LOOP_MAX)?chan[i].pcm.end:chan[i].pcm.loopEnd);
// initialize overwrite
if (chan[i].overwrite.state.overwrited) {
// Filter
if (chan[i].overwrite.state.mode) {
chan[i].filter.mode=chan[i].overwrite.filter.mode;
}
if (chan[i].overwrite.state.k1) {
chan[i].filter.k1=chan[i].overwrite.filter.k1;
}
if (chan[i].overwrite.state.k2) {
chan[i].filter.k2=chan[i].overwrite.filter.k2;
}
// Envelope
if (chan[i].overwrite.state.ecount) {
chan[i].envelope.ecount=chan[i].overwrite.envelope.ecount;
}
if (chan[i].overwrite.state.lVRamp) {
chan[i].envelope.lVRamp=chan[i].overwrite.envelope.lVRamp;
}
if (chan[i].overwrite.state.rVRamp) {
chan[i].envelope.rVRamp=chan[i].overwrite.envelope.rVRamp;
}
if (chan[i].overwrite.state.k1Ramp) {
chan[i].envelope.k1Ramp=chan[i].overwrite.envelope.k1Ramp;
chan[i].envelope.k1Slow=chan[i].overwrite.envelope.k1Slow;
}
if (chan[i].overwrite.state.k2Ramp) {
chan[i].envelope.k2Ramp=chan[i].overwrite.envelope.k2Ramp;
chan[i].envelope.k2Slow=chan[i].overwrite.envelope.k2Slow;
}
chan[i].overwrite.state.overwrited=0;
}
// initialize envelope
pageWrite(0x00|i,0x03,(unsigned char)(chan[i].envelope.lVRamp)<<8);
pageWrite(0x00|i,0x05,(unsigned char)(chan[i].envelope.rVRamp)<<8);
pageWrite(0x00|i,0x0a,((unsigned char)(chan[i].envelope.k1Ramp)<<8)|(chan[i].envelope.k1Slow?1:0));
pageWrite(0x00|i,0x08,((unsigned char)(chan[i].envelope.k2Ramp)<<8)|(chan[i].envelope.k2Slow?1:0));
// initialize filter
pageWriteMask(0x00|i,0x5f,0x00,(chan[i].pcm.bank<<14)|(chan[i].filter.mode<<8),0xc300);
if ((chan[i].std.ex2.mode!=0) && (chan[i].std.ex2.had)) {
k2=CLAMP(chan[i].filter.k2+chan[i].k2Offs,0,65535);
} else {
k2=chan[i].filter.k2;
}
pageWrite(0x00|i,0x07,k2);
chan[i].k2Prev=k2;
if ((chan[i].std.ex1.mode!=0) && (chan[i].std.ex1.had)) {
k1=CLAMP(chan[i].filter.k1+chan[i].k1Offs,0,65535);
} else {
k1=chan[i].filter.k1;
}
pageWrite(0x00|i,0x09,k1);
chan[i].k1Prev=k1;
pageWrite(0x00|i,0x02,chan[i].resLVol);
pageWrite(0x00|i,0x04,chan[i].resRVol);
unsigned int loopFlag=(chan[i].ca<<10)|(chan[i].pcm.direction?0x0040:0x0000);
chan[i].isReverseLoop=false;
switch (chan[i].pcm.loopMode) {
case DIV_SAMPLE_LOOP_FORWARD: // Forward loop
loopFlag|=0x0008;
break;
/*
case DIV_SAMPLE_LOOP_BACKWARD: // Backward loop: IRQ enable
loopFlag|=0x0038;
chan[i].isReverseLoop=true;
break;
*/
case DIV_SAMPLE_LOOP_PINGPONG: // Pingpong loop: Hardware support
loopFlag|=0x0018;
break;
case DIV_SAMPLE_LOOP_MAX: // no loop
default:
break;
}
if (chan[i].pcm.pause) {
loopFlag|=0x0002;
}
// Run sample
pageWrite(0x00|i,0x06,chan[i].envelope.ecount); // Clear ECOUNT
pageWriteMask(0x00|i,0x5f,0x00,loopFlag,0x3cff);
}
}
if (chan[i].keyOff) {
pageWriteMask(0x00|i,0x5f,0x00,0x0303); // Wipeout CR
} else if (!chan[i].keyOn && chan[i].active) {
pageWrite(0x00|i,0x01,chan[i].freq);
}
if (chan[i].keyOn) chan[i].keyOn=false;
if (chan[i].keyOff) chan[i].keyOff=false;
chan[i].freqChanged=false;
}
if (!chan[i].keyOn && chan[i].active) {
if (chan[i].k2Prev!=k2) {
pageWrite(0x00|i,0x07,k2);
chan[i].k2Prev=k2;
}
if (chan[i].k1Prev!=k1) {
pageWrite(0x00|i,0x09,k1);
chan[i].k1Prev=k1;
}
}
}
}
int DivPlatformES5506::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_ES5506);
bool sampleValid=false;
if (((ins->amiga.useNoteMap) && (c.value>=0 && c.value<120)) ||
((!ins->amiga.useNoteMap) && (ins->amiga.initSample>=0 && ins->amiga.initSample<parent->song.sampleLen))) {
int sample=ins->amiga.getSample(c.value);
c.value=ins->amiga.getFreq(c.value);
if (sample>=0 && sample<parent->song.sampleLen) {
sampleValid=true;
chan[c.chan].volMacroMax=ins->type==DIV_INS_AMIGA?64:0xfff;
chan[c.chan].panMacroMax=ins->type==DIV_INS_AMIGA?127:0xfff;
chan[c.chan].pcm.note=c.value;
chan[c.chan].pcm.next=ins->amiga.useNoteMap?c.value:sample;
chan[c.chan].filter=ins->es5506.filter;
chan[c.chan].envelope=ins->es5506.envelope;
}
}
if (!sampleValid) {
chan[c.chan].pcm.index=chan[c.chan].pcm.next=-1;
chan[c.chan].filter=DivInstrumentES5506::Filter();
chan[c.chan].envelope=DivInstrumentES5506::Envelope();
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].note=c.value;
chan[c.chan].nextNote=chan[c.chan].note;
chan[c.chan].pcm.nextFreqOffs=chan[c.chan].pcm.freqOffs;
chan[c.chan].freqChanged=true;
chan[c.chan].pcmChanged.changed=0xff;
chan[c.chan].noteChanged.changed=0xff;
chan[c.chan].volChanged.changed=0xff;
}
if (!chan[c.chan].std.vol.will) {
chan[c.chan].outVol=(0xfff*chan[c.chan].vol)/0xff;
}
if (!chan[c.chan].std.panL.will) {
chan[c.chan].outLVol=(0xfff*chan[c.chan].lVol)/0xff;
}
if (!chan[c.chan].std.panR.will) {
chan[c.chan].outRVol=(0xfff*chan[c.chan].rVol)/0xff;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].macroInit(ins);
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].filter=DivInstrumentES5506::Filter();
chan[c.chan].envelope=DivInstrumentES5506::Envelope();
chan[c.chan].active=false;
chan[c.chan].keyOff=true;
chan[c.chan].macroInit(NULL);
break;
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
chan[c.chan].std.release();
break;
case DIV_CMD_INSTRUMENT:
if (chan[c.chan].ins!=c.value || c.value2==1) {
chan[c.chan].ins=c.value;
}
break;
case DIV_CMD_VOLUME:
if (chan[c.chan].vol!=c.value) {
chan[c.chan].vol=c.value;
if (!chan[c.chan].std.vol.has) {
chan[c.chan].outVol=(0xfff*c.value)/0xff;
chan[c.chan].volChanged.changed=0xff;
}
}
break;
case DIV_CMD_GET_VOLUME:
return chan[c.chan].vol;
break;
case DIV_CMD_PANNING: {
if (chan[c.chan].ca!=0) {
chan[c.chan].ca=0;
chan[c.chan].volChanged.ca=1;
}
// Left volume
if (chan[c.chan].lVol!=c.value) {
chan[c.chan].lVol=c.value;
if (!chan[c.chan].std.panL.has) {
chan[c.chan].outLVol=(0xfff*c.value)/0xff;
chan[c.chan].volChanged.lVol=1;
}
}
// Right volume
if (chan[c.chan].rVol!=c.value2) {
chan[c.chan].rVol=c.value2;
if (!chan[c.chan].std.panR.has) {
chan[c.chan].outRVol=(0xfff*c.value2)/0xff;
chan[c.chan].volChanged.rVol=1;
}
}
break;
}
case DIV_CMD_SURROUND_PANNING: {
unsigned char ca=CLAMP(c.value>>1,0,5);
if (chan[c.chan].ca!=ca) {
chan[c.chan].ca=ca;
chan[c.chan].volChanged.ca=1;
}
if ((c.value&1)==0) {
// Left volume
if (chan[c.chan].lVol!=c.value2) {
chan[c.chan].lVol=c.value2;
if (!chan[c.chan].std.panL.has) {
chan[c.chan].outLVol=(0xfff*c.value2)/0xff;
chan[c.chan].volChanged.lVol=1;
}
}
}
else if ((c.value&1)==1) {
// Right volume
if (chan[c.chan].rVol!=c.value2) {
chan[c.chan].rVol=c.value2;
if (!chan[c.chan].std.panR.has) {
chan[c.chan].outRVol=(0xfff*c.value2)/0xff;
chan[c.chan].volChanged.rVol=1;
}
}
}
break;
}
case DIV_CMD_PITCH:
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
// sample commands
case DIV_CMD_WAVE:
if (!chan[c.chan].useWave) {
if (chan[c.chan].active) {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_ES5506);
if (((ins->amiga.useNoteMap) && (c.value>=0 && c.value<120)) ||
((!ins->amiga.useNoteMap) && (c.value>=0 && c.value<parent->song.sampleLen))) {
chan[c.chan].pcm.next=c.value;
chan[c.chan].pcmChanged.index=1;
}
}
}
// reserved for useWave
break;
// Filter commands
case DIV_CMD_ES5506_FILTER_MODE:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.mode) {
chan[c.chan].overwrite.filter.mode=chan[c.chan].filter.mode;
chan[c.chan].overwrite.state.mode=1;
}
chan[c.chan].overwrite.filter.mode=DivInstrumentES5506::Filter::FilterMode(c.value&3);
}
chan[c.chan].filter.mode=DivInstrumentES5506::Filter::FilterMode(c.value&3);
chan[c.chan].filterChanged.mode=1;
break;
case DIV_CMD_ES5506_FILTER_K1:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.k1) {
chan[c.chan].overwrite.filter.k1=chan[c.chan].filter.k1;
chan[c.chan].overwrite.state.k1=1;
}
chan[c.chan].overwrite.filter.k1=(chan[c.chan].overwrite.filter.k1&~c.value2)|(c.value&c.value2);
}
chan[c.chan].filter.k1=(chan[c.chan].filter.k1&~c.value2)|(c.value&c.value2);
chan[c.chan].filterChanged.k1=1;
break;
case DIV_CMD_ES5506_FILTER_K2:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.k2) {
chan[c.chan].overwrite.filter.k2=chan[c.chan].filter.k2;
chan[c.chan].overwrite.state.k2=1;
}
chan[c.chan].overwrite.filter.k2=(chan[c.chan].overwrite.filter.k2&~c.value2)|(c.value&c.value2);
}
chan[c.chan].filter.k2=(chan[c.chan].filter.k2&~c.value2)|(c.value&c.value2);
chan[c.chan].filterChanged.k2=1;
break;
case DIV_CMD_ES5506_FILTER_K1_SLIDE:
chan[c.chan].k1Slide=c.value2?(-c.value):c.value;
break;
case DIV_CMD_ES5506_FILTER_K2_SLIDE:
chan[c.chan].k2Slide=c.value2?(-c.value):c.value;
break;
// Envelope commands
case DIV_CMD_ES5506_ENVELOPE_COUNT:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.ecount) {
chan[c.chan].overwrite.envelope.ecount=chan[c.chan].envelope.ecount;
chan[c.chan].overwrite.state.ecount=1;
}
chan[c.chan].overwrite.envelope.ecount=c.value&0x1ff;
}
chan[c.chan].envelope.ecount=c.value&0x1ff;
chan[c.chan].envChanged.ecount=1;
break;
case DIV_CMD_ES5506_ENVELOPE_LVRAMP:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.lVRamp) {
chan[c.chan].overwrite.envelope.lVRamp=chan[c.chan].envelope.lVRamp;
chan[c.chan].overwrite.state.lVRamp=1;
}
chan[c.chan].overwrite.envelope.lVRamp=(signed char)(c.value&0xff);
}
chan[c.chan].envelope.lVRamp=(signed char)(c.value&0xff);
chan[c.chan].envChanged.lVRamp=1;
break;
case DIV_CMD_ES5506_ENVELOPE_RVRAMP:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.rVRamp) {
chan[c.chan].overwrite.envelope.rVRamp=chan[c.chan].envelope.rVRamp;
chan[c.chan].overwrite.state.rVRamp=1;
}
chan[c.chan].overwrite.envelope.rVRamp=(signed char)(c.value&0xff);
}
chan[c.chan].envelope.rVRamp=(signed char)(c.value&0xff);
chan[c.chan].envChanged.rVRamp=1;
break;
case DIV_CMD_ES5506_ENVELOPE_K1RAMP:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.k1Ramp) {
chan[c.chan].overwrite.envelope.k1Ramp=chan[c.chan].envelope.k1Ramp;
chan[c.chan].overwrite.envelope.k1Slow=chan[c.chan].envelope.k1Slow;
chan[c.chan].overwrite.state.k1Ramp=1;
}
chan[c.chan].overwrite.envelope.k1Ramp=(signed char)(c.value&0xff);
chan[c.chan].overwrite.envelope.k1Slow=c.value2&1;
}
chan[c.chan].envelope.k1Ramp=(signed char)(c.value&0xff);
chan[c.chan].envelope.k1Slow=c.value2&1;
chan[c.chan].envChanged.k1Ramp=1;
break;
case DIV_CMD_ES5506_ENVELOPE_K2RAMP:
if (!chan[c.chan].active) {
if (!chan[c.chan].overwrite.state.k2Ramp) {
chan[c.chan].overwrite.envelope.k2Ramp=chan[c.chan].envelope.k2Ramp;
chan[c.chan].overwrite.envelope.k2Slow=chan[c.chan].envelope.k2Slow;
chan[c.chan].overwrite.state.k2Ramp=1;
}
chan[c.chan].overwrite.envelope.k2Ramp=(signed char)(c.value&0xff);
chan[c.chan].overwrite.envelope.k2Slow=c.value2&1;
}
chan[c.chan].envelope.k2Ramp=(signed char)(c.value&0xff);
chan[c.chan].envelope.k2Slow=c.value2&1;
chan[c.chan].envChanged.k2Ramp=1;
break;
// controls
case DIV_CMD_ES5506_PAUSE:
if (chan[c.chan].active) {
if (chan[c.chan].pcm.pause!=(bool)(c.value&1)) {
chan[c.chan].pcm.pause=c.value&1;
pageWriteMask(0x00|c.chan,0x5f,0x00,chan[c.chan].pcm.pause?0x0002:0x0000,0x0002);
}
}
break;
case DIV_CMD_NOTE_PORTA: {
int nextFreq=chan[c.chan].baseFreq;
const int destFreq=NOTE_ES5506(c.chan,c.value2);
bool return2=false;
if (destFreq>nextFreq) {
nextFreq+=c.value;
if (nextFreq>=destFreq) {
nextFreq=destFreq;
return2=true;
}
} else {
nextFreq-=c.value;
if (nextFreq<=destFreq) {
nextFreq=destFreq;
return2=true;
}
}
chan[c.chan].nextFreq=nextFreq;
chan[c.chan].noteChanged.freq=1;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
case DIV_CMD_LEGATO: {
chan[c.chan].note=c.value;
chan[c.chan].nextNote=chan[c.chan].note+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val-12):(0));
chan[c.chan].noteChanged.note=1;
break;
}
case DIV_CMD_PRE_PORTA:
if (chan[c.chan].active && c.value2) {
if (parent->song.resetMacroOnPorta) chan[c.chan].macroInit(parent->getIns(chan[c.chan].ins,DIV_INS_ES5506));
}
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) {
chan[c.chan].nextNote=chan[c.chan].note;
chan[c.chan].noteChanged.note=1;
}
chan[c.chan].inPorta=c.value;
break;
case DIV_CMD_SAMPLE_POS: {
chan[c.chan].pcm.nextPos=c.value;
chan[c.chan].pcm.setPos=true;
break;
}
case DIV_CMD_SAMPLE_DIR: {
if (chan[c.chan].pcm.direction!=(bool)(c.value&1)) {
chan[c.chan].pcm.direction=c.value&1;
pageWriteMask(0x00|c.chan,0x5f,0x00,chan[c.chan].pcm.direction?0x0040:0x0000,0x0040);
}
break;
}
case DIV_CMD_GET_VOLMAX:
return 255;
break;
case DIV_CMD_MACRO_OFF:
chan[c.chan].std.mask(c.value,true);
break;
case DIV_CMD_MACRO_ON:
chan[c.chan].std.mask(c.value,false);
break;
case DIV_ALWAYS_SET_VOLUME:
return 1;
break;
default:
break;
}
return 1;
}
void DivPlatformES5506::muteChannel(int ch, bool mute) {
isMuted[ch]=mute;
es5506.set_mute(ch,mute);
}
void DivPlatformES5506::forceIns() {
for (int i=0; i<=chanMax; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
chan[i].noteChanged.changed=0xff;
chan[i].volChanged.changed=0xff;
chan[i].filterChanged.changed=0xff;
chan[i].envChanged.changed=0xff;
chan[i].pcmChanged.changed=0xff;
}
}
void* DivPlatformES5506::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformES5506::getChanMacroInt(int ch) {
return &chan[ch].std;
}
void DivPlatformES5506::reset() {
while (!hostIntf32.empty()) hostIntf32.pop();
while (!hostIntf8.empty()) hostIntf8.pop();
while (!queuedRead.empty()) queuedRead.pop();
while (!queuedReadState.empty()) queuedReadState.pop();
for (int i=0; i<32; i++) {
chan[i]=DivPlatformES5506::Channel();
chan[i].std.setEngine(parent);
}
es5506.reset();
for (int i=0; i<32; i++) {
es5506.set_mute(i,isMuted[i]);
}
cycle=0;
curPage=0;
maskedVal=0;
irqv=0x80;
isMasked=false;
irqTrigger=false;
chanMax=initChanMax;
pageWriteMask(0x00,0x60,0x0b,chanMax);
pageWriteMask(0x00,0x60,0x0b,0x1f);
// set serial output to I2S-ish, 16 bit
pageWriteMask(0x20,0x60,0x0a,0x01);
pageWriteMask(0x20,0x60,0x0b,0x11);
pageWriteMask(0x20,0x60,0x0c,0x20);
pageWriteMask(0x00,0x60,0x0c,0x08); // Reset serial output
}
int DivPlatformES5506::getOutputCount() {
return 12;
}
bool DivPlatformES5506::keyOffAffectsArp(int ch) {
return true;
}
void DivPlatformES5506::notifyInsChange(int ins) {
for (int i=0; i<32; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
}
void DivPlatformES5506::notifyWaveChange(int wave) {
// TODO when wavetables are added
// TODO they probably won't be added unless the samples reside in RAM
}
void DivPlatformES5506::notifyInsDeletion(void* ins) {
for (int i=0; i<32; i++) {
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
}
}
void DivPlatformES5506::setFlags(const DivConfig& flags) {
chipClock=16000000;
CHECK_CUSTOM_CLOCK;
initChanMax=MAX(4,flags.getInt("channels",0x1f)&0x1f);
volScale=4095-flags.getInt("volScale",4095);
chanMax=initChanMax;
pageWriteMask(0x00,0x60,0x0b,chanMax);
rate=chipClock/(16*(initChanMax+1)); // 2 E clock tick (16 CLKIN tick) per voice / 4
for (int i=0; i<32; i++) {
oscBuf[i]->rate=rate;
}
}
void DivPlatformES5506::poke(unsigned int addr, unsigned short val) {
immWrite(addr, val);
}
void DivPlatformES5506::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
}
DivDispatchOscBuffer* DivPlatformES5506::getOscBuffer(int ch) {
return oscBuf[ch];
}
unsigned char* DivPlatformES5506::getRegisterPool() {
unsigned char* regPoolPtr = regPool;
for (unsigned char p=0; p<128; p++) {
for (unsigned char r=0; r<16; r++) {
unsigned int reg=es5506.regs_r(p,r,false);
for (int b=0; b<4; b++) {
*regPoolPtr++ = reg>>(24-(b<<3));
}
}
}
return regPool;
}
int DivPlatformES5506::getRegisterPoolSize() {
return 4*16*128; // 7 bit page x 16 registers per page x 32 bit per registers
}
const void* DivPlatformES5506::getSampleMem(int index) {
return index == 0 ? sampleMem : NULL;
}
size_t DivPlatformES5506::getSampleMemCapacity(int index) {
return index == 0 ? 16777216 : 0; // 2Mword x 16bit * 4 banks
}
size_t DivPlatformES5506::getSampleMemUsage(int index) {
return index == 0 ? sampleMemLen : 0;
}
bool DivPlatformES5506::isSampleLoaded(int index, int sample) {
if (index!=0) return false;
if (sample<0 || sample>255) return false;
return sampleLoaded[sample];
}
void DivPlatformES5506::renderSamples(int sysID) {
memset(sampleMem,0,getSampleMemCapacity());
memset(sampleOffES5506,0,256*sizeof(unsigned int));
memset(sampleLoaded,0,256*sizeof(bool));
size_t memPos=128; // add silent at begin and end of each bank for reverse playback
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
if (!s->renderOn[0][sysID]) {
sampleOffES5506[i]=0;
continue;
}
unsigned int length=s->length16;
// fit sample size to single bank size
if (length>(4194304-128)) {
length=4194304-128;
}
if ((memPos&0xc00000)!=((memPos+length+128)&0xc00000)) {
memPos=((memPos+0x3fffff)&0xc00000)+128;
}
if (memPos>=(getSampleMemCapacity()-128)) {
logW("out of ES5506 memory for sample %d!",i);
break;
}
if (memPos+length>=(getSampleMemCapacity()-128)) {
memcpy(sampleMem+(memPos/sizeof(short)),s->data16,(getSampleMemCapacity()-128)-memPos);
logW("out of ES5506 memory for sample %d!",i);
} else {
memcpy(sampleMem+(memPos/sizeof(short)),s->data16,length);
}
sampleOffES5506[i]=memPos;
sampleLoaded[i]=true;
memPos+=length;
}
sampleMemLen=memPos+256;
}
int DivPlatformES5506::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
sampleMem=new signed short[getSampleMemCapacity()/sizeof(short)];
sampleMemLen=0;
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
volScale=0;
for (int i=0; i<32; i++) {
isMuted[i]=false;
oscBuf[i]=new DivDispatchOscBuffer;
}
setFlags(flags);
reset();
return 32;
}
void DivPlatformES5506::quit() {
delete[] sampleMem;
for (int i=0; i<32; i++) {
delete oscBuf[i];
}
}
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