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furnace/src/engine/playback.cpp
tildearrow 02e9edbad9 unlock the power of DECIMAL HZ!
2022-03-15 23:30:15 -05:00

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/**
* 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.
*/
#include "blip_buf.h"
#include "song.h"
#include "wavetable.h"
#define _USE_MATH_DEFINES
#include "dispatch.h"
#include "engine.h"
#include "../ta-log.h"
#include <math.h>
#include <sndfile.h>
constexpr int MASTER_CLOCK_PREC=(sizeof(void*)==8)?8:0;
void DivEngine::nextOrder() {
curRow=0;
if (repeatPattern) return;
if (++curOrder>=song.ordersLen) {
endOfSong=true;
curOrder=0;
}
}
const char* notes[12]={
"C-", "C#", "D-", "D#", "E-", "F-", "F#", "G-", "G#", "A-", "A#", "B-"
};
// update this when adding new commands.
const char* cmdName[DIV_CMD_MAX]={
"NOTE_ON",
"NOTE_OFF",
"NOTE_OFF_ENV",
"ENV_RELEASE",
"INSTRUMENT",
"VOLUME",
"GET_VOLUME",
"GET_VOLMAX",
"NOTE_PORTA",
"PITCH",
"PANNING",
"LEGATO",
"PRE_PORTA",
"PRE_NOTE",
"SAMPLE_MODE",
"SAMPLE_FREQ",
"SAMPLE_BANK",
"SAMPLE_POS",
"FM_LFO",
"FM_LFO_WAVE",
"FM_TL",
"FM_AR",
"FM_FB",
"FM_MULT",
"FM_EXTCH",
"FM_AM_DEPTH",
"FM_PM_DEPTH",
"GENESIS_LFO",
"ARCADE_LFO",
"STD_NOISE_FREQ",
"STD_NOISE_MODE",
"WAVE",
"GB_SWEEP_TIME",
"GB_SWEEP_DIR",
"PCE_LFO_MODE",
"PCE_LFO_SPEED",
"NES_SWEEP",
"C64_CUTOFF",
"C64_RESONANCE",
"C64_FILTER_MODE",
"C64_RESET_TIME",
"C64_RESET_MASK",
"C64_FILTER_RESET",
"C64_DUTY_RESET",
"C64_EXTENDED",
"C64_FINE_DUTY",
"C64_FINE_CUTOFF",
"AY_ENVELOPE_SET",
"AY_ENVELOPE_LOW",
"AY_ENVELOPE_HIGH",
"AY_ENVELOPE_SLIDE",
"AY_NOISE_MASK_AND",
"AY_NOISE_MASK_OR",
"AY_AUTO_ENVELOPE",
"SAA_ENVELOPE",
"LYNX_LFSR_LOAD",
"QSOUND_ECHO_FEEDBACK",
"QSOUND_ECHO_DELAY",
"QSOUND_ECHO_LEVEL",
"X1_010_ENVELOPE_SHAPE",
"X1_010_ENVELOPE_ENABLE",
"X1_010_ENVELOPE_MODE",
"X1_010_ENVELOPE_PERIOD",
"X1_010_ENVELOPE_SLIDE",
"X1_010_AUTO_ENVELOPE",
"WS_SWEEP_TIME",
"WS_SWEEP_AMOUNT",
"ALWAYS_SET_VOLUME"
};
const char* formatNote(unsigned char note, unsigned char octave) {
static char ret[4];
if (note==100) {
return "OFF";
} else if (note==101) {
return "===";
} else if (note==102) {
return "REL";
} else if (octave==0 && note==0) {
return "---";
}
snprintf(ret,4,"%s%d",notes[note%12],octave+note/12);
return ret;
}
int DivEngine::dispatchCmd(DivCommand c) {
if (view==DIV_STATUS_COMMANDS) {
printf("%8d | %d: %s(%d, %d)\n",totalTicksR,c.chan,cmdName[c.cmd],c.value,c.value2);
}
totalCmds++;
if (cmdStreamEnabled && cmdStream.size()<2000) {
cmdStream.push_back(c);
}
c.chan=dispatchChanOfChan[c.dis];
return disCont[dispatchOfChan[c.dis]].dispatch->dispatch(c);
}
bool DivEngine::perSystemEffect(int ch, unsigned char effect, unsigned char effectVal) {
switch (sysOfChan[ch]) {
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
switch (effect) {
case 0x17: // DAC enable
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_MODE,ch,(effectVal>0)));
break;
case 0x20: // SN noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_SMS:
switch (effect) {
case 0x20: // SN noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_GB:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x11: case 0x12: // duty or noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x13: // sweep params
dispatchCmd(DivCommand(DIV_CMD_GB_SWEEP_TIME,ch,effectVal));
break;
case 0x14: // sweep direction
dispatchCmd(DivCommand(DIV_CMD_GB_SWEEP_DIR,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_PCE:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x11: // noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x12: // LFO mode
dispatchCmd(DivCommand(DIV_CMD_PCE_LFO_MODE,ch,effectVal));
break;
case 0x13: // LFO speed
dispatchCmd(DivCommand(DIV_CMD_PCE_LFO_SPEED,ch,effectVal));
break;
case 0x17: // PCM enable
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_MODE,ch,(effectVal>0)));
break;
default:
return false;
}
break;
case DIV_SYSTEM_NES:
switch (effect) {
case 0x12: // duty or noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x13: // sweep up
dispatchCmd(DivCommand(DIV_CMD_NES_SWEEP,ch,0,effectVal));
break;
case 0x14: // sweep down
dispatchCmd(DivCommand(DIV_CMD_NES_SWEEP,ch,1,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_OPLL_DRUMS:
switch (effect) {
case 0x18: // drum mode toggle
dispatchCmd(DivCommand(DIV_CMD_FM_EXTCH,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_QSOUND:
switch (effect) {
case 0x10: // echo feedback
dispatchCmd(DivCommand(DIV_CMD_QSOUND_ECHO_FEEDBACK,ch,effectVal));
break;
case 0x11: // echo level
dispatchCmd(DivCommand(DIV_CMD_QSOUND_ECHO_LEVEL,ch,effectVal));
break;
default:
if ((effect&0xf0)==0x30) {
dispatchCmd(DivCommand(DIV_CMD_QSOUND_ECHO_DELAY,ch,((effect & 0x0f) << 8) | effectVal));
} else {
return false;
}
break;
}
break;
case DIV_SYSTEM_X1_010:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x11: // select envelope shape
dispatchCmd(DivCommand(DIV_CMD_X1_010_ENVELOPE_SHAPE,ch,effectVal));
break;
case 0x17: // PCM enable
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_MODE,ch,(effectVal>0)));
break;
default:
return false;
}
break;
case DIV_SYSTEM_SWAN:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x11: // noise mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x12: // sweep period
dispatchCmd(DivCommand(DIV_CMD_WS_SWEEP_TIME,ch,effectVal));
break;
case 0x13: // sweep amount
dispatchCmd(DivCommand(DIV_CMD_WS_SWEEP_AMOUNT,ch,effectVal));
break;
case 0x17: // PCM enable
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_MODE,ch,(effectVal>0)));
break;
default:
return false;
}
break;
case DIV_SYSTEM_VERA:
switch (effect) {
case 0x20: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x22: // duty
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_K005289:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
default:
return false;
}
break;
default:
return false;
}
return true;
}
#define IS_YM2610 (sysOfChan[ch]==DIV_SYSTEM_YM2610 || sysOfChan[ch]==DIV_SYSTEM_YM2610_EXT || sysOfChan[ch]==DIV_SYSTEM_YM2610_FULL || sysOfChan[ch]==DIV_SYSTEM_YM2610_FULL_EXT || sysOfChan[ch]==DIV_SYSTEM_YM2610B || sysOfChan[ch]==DIV_SYSTEM_YM2610B_EXT)
bool DivEngine::perSystemPostEffect(int ch, unsigned char effect, unsigned char effectVal) {
switch (sysOfChan[ch]) {
case DIV_SYSTEM_YM2612:
case DIV_SYSTEM_YM2612_EXT:
case DIV_SYSTEM_YM2151:
case DIV_SYSTEM_YM2610:
case DIV_SYSTEM_YM2610_EXT:
case DIV_SYSTEM_YM2610_FULL:
case DIV_SYSTEM_YM2610_FULL_EXT:
case DIV_SYSTEM_YM2610B:
case DIV_SYSTEM_YM2610B_EXT:
switch (effect) {
case 0x10: // LFO or noise mode
if (sysOfChan[ch]==DIV_SYSTEM_YM2151) {
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_FREQ,ch,effectVal));
} else {
dispatchCmd(DivCommand(DIV_CMD_FM_LFO,ch,effectVal));
}
break;
case 0x11: // FB
dispatchCmd(DivCommand(DIV_CMD_FM_FB,ch,effectVal&7));
break;
case 0x12: // TL op1
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,0,effectVal&0x7f));
break;
case 0x13: // TL op2
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,1,effectVal&0x7f));
break;
case 0x14: // TL op3
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,2,effectVal&0x7f));
break;
case 0x15: // TL op4
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,3,effectVal&0x7f));
break;
case 0x16: // MULT
if ((effectVal>>4)>0 && (effectVal>>4)<5) {
dispatchCmd(DivCommand(DIV_CMD_FM_MULT,ch,(effectVal>>4)-1,effectVal&15));
}
break;
case 0x17: // arcade LFO
if (sysOfChan[ch]==DIV_SYSTEM_YM2151) {
dispatchCmd(DivCommand(DIV_CMD_FM_LFO,ch,effectVal));
}
break;
case 0x18: // EXT or LFO waveform
if (sysOfChan[ch]==DIV_SYSTEM_YM2151) {
dispatchCmd(DivCommand(DIV_CMD_FM_LFO_WAVE,ch,effectVal));
} else {
dispatchCmd(DivCommand(DIV_CMD_FM_EXTCH,ch,effectVal));
}
break;
case 0x19: // AR global
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,-1,effectVal&31));
break;
case 0x1a: // AR op1
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,0,effectVal&31));
break;
case 0x1b: // AR op2
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,1,effectVal&31));
break;
case 0x1c: // AR op3
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,2,effectVal&31));
break;
case 0x1d: // AR op4
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,3,effectVal&31));
break;
case 0x1e: // UNOFFICIAL: Arcade AM depth
dispatchCmd(DivCommand(DIV_CMD_FM_AM_DEPTH,ch,effectVal&127));
break;
case 0x1f: // UNOFFICIAL: Arcade PM depth
dispatchCmd(DivCommand(DIV_CMD_FM_PM_DEPTH,ch,effectVal&127));
break;
case 0x20: // Neo Geo PSG mode
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
}
break;
case 0x21: // Neo Geo PSG noise freq
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_FREQ,ch,effectVal));
}
break;
case 0x22: // UNOFFICIAL: Neo Geo PSG envelope enable
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SET,ch,effectVal));
}
break;
case 0x23: // UNOFFICIAL: Neo Geo PSG envelope period low
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_LOW,ch,effectVal));
}
break;
case 0x24: // UNOFFICIAL: Neo Geo PSG envelope period high
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_HIGH,ch,effectVal));
}
break;
case 0x25: // UNOFFICIAL: Neo Geo PSG envelope slide up
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SLIDE,ch,-effectVal));
}
break;
case 0x26: // UNOFFICIAL: Neo Geo PSG envelope slide down
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SLIDE,ch,effectVal));
}
break;
case 0x29: // auto-envelope
if (IS_YM2610) {
dispatchCmd(DivCommand(DIV_CMD_AY_AUTO_ENVELOPE,ch,effectVal));
}
break;
default:
return false;
}
break;
case DIV_SYSTEM_OPLL:
case DIV_SYSTEM_OPLL_DRUMS:
case DIV_SYSTEM_VRC7:
switch (effect) {
case 0x11: // FB
dispatchCmd(DivCommand(DIV_CMD_FM_FB,ch,effectVal&7));
break;
case 0x12: // TL op1
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,0,effectVal&0x3f));
break;
case 0x13: // TL op2
dispatchCmd(DivCommand(DIV_CMD_FM_TL,ch,1,effectVal&0x0f));
break;
case 0x16: // MULT
if ((effectVal>>4)>0 && (effectVal>>4)<3) {
dispatchCmd(DivCommand(DIV_CMD_FM_MULT,ch,(effectVal>>4)-1,effectVal&15));
}
break;
case 0x19: // AR global
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,-1,effectVal&31));
break;
case 0x1a: // AR op1
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,0,effectVal&31));
break;
case 0x1b: // AR op2
dispatchCmd(DivCommand(DIV_CMD_FM_AR,ch,1,effectVal&31));
break;
default:
return false;
}
break;
case DIV_SYSTEM_C64_6581: case DIV_SYSTEM_C64_8580:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
case 0x11: // cutoff
dispatchCmd(DivCommand(DIV_CMD_C64_CUTOFF,ch,effectVal));
break;
case 0x12: // duty
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x13: // resonance
dispatchCmd(DivCommand(DIV_CMD_C64_RESONANCE,ch,effectVal));
break;
case 0x14: // filter mode
dispatchCmd(DivCommand(DIV_CMD_C64_FILTER_MODE,ch,effectVal));
break;
case 0x15: // reset time
dispatchCmd(DivCommand(DIV_CMD_C64_RESET_TIME,ch,effectVal));
break;
case 0x1a: // reset mask
dispatchCmd(DivCommand(DIV_CMD_C64_RESET_MASK,ch,effectVal));
break;
case 0x1b: // cutoff reset
dispatchCmd(DivCommand(DIV_CMD_C64_FILTER_RESET,ch,effectVal));
break;
case 0x1c: // duty reset
dispatchCmd(DivCommand(DIV_CMD_C64_DUTY_RESET,ch,effectVal));
break;
case 0x1e: // extended
dispatchCmd(DivCommand(DIV_CMD_C64_EXTENDED,ch,effectVal));
break;
case 0x30: case 0x31: case 0x32: case 0x33:
case 0x34: case 0x35: case 0x36: case 0x37:
case 0x38: case 0x39: case 0x3a: case 0x3b:
case 0x3c: case 0x3d: case 0x3e: case 0x3f: // fine duty
dispatchCmd(DivCommand(DIV_CMD_C64_FINE_DUTY,ch,((effect&0x0f)<<8)|effectVal));
break;
case 0x40: case 0x41: case 0x42: case 0x43:
case 0x44: case 0x45: case 0x46: case 0x47: // fine cutoff
dispatchCmd(DivCommand(DIV_CMD_C64_FINE_CUTOFF,ch,((effect&0x07)<<8)|effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_AY8910:
case DIV_SYSTEM_AY8930:
switch (effect) {
case 0x12: // duty on 8930
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,0x10+(effectVal&15)));
break;
case 0x20: // mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal&15));
break;
case 0x21: // noise freq
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_FREQ,ch,effectVal));
break;
case 0x22: // envelope enable
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SET,ch,effectVal));
break;
case 0x23: // envelope period low
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_LOW,ch,effectVal));
break;
case 0x24: // envelope period high
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_HIGH,ch,effectVal));
break;
case 0x25: // envelope slide up
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SLIDE,ch,-effectVal));
break;
case 0x26: // envelope slide down
dispatchCmd(DivCommand(DIV_CMD_AY_ENVELOPE_SLIDE,ch,effectVal));
break;
case 0x27: // noise and mask
dispatchCmd(DivCommand(DIV_CMD_AY_NOISE_MASK_AND,ch,effectVal));
break;
case 0x28: // noise or mask
dispatchCmd(DivCommand(DIV_CMD_AY_NOISE_MASK_OR,ch,effectVal));
break;
case 0x29: // auto-envelope
dispatchCmd(DivCommand(DIV_CMD_AY_AUTO_ENVELOPE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_SAA1099:
switch (effect) {
case 0x10: // select channel mode
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
break;
case 0x11: // set noise freq
dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_FREQ,ch,effectVal));
break;
case 0x12: // setup envelope
dispatchCmd(DivCommand(DIV_CMD_SAA_ENVELOPE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_TIA:
switch (effect) {
case 0x10: // select waveform
dispatchCmd(DivCommand(DIV_CMD_WAVE,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_SEGAPCM:
case DIV_SYSTEM_SEGAPCM_COMPAT:
switch (effect) {
case 0x20: // PCM frequency
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_FREQ,ch,effectVal));
break;
default:
return false;
}
break;
case DIV_SYSTEM_LYNX:
if (effect>=0x30 && effect<0x40) {
int value = ((int)(effect&0x0f)<<8)|effectVal;
dispatchCmd(DivCommand(DIV_CMD_LYNX_LFSR_LOAD,ch,value));
break;
}
return false;
break;
case DIV_SYSTEM_X1_010:
switch (effect) {
case 0x20: // PCM frequency
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_FREQ,ch,effectVal));
break;
case 0x22: // envelope mode
dispatchCmd(DivCommand(DIV_CMD_X1_010_ENVELOPE_MODE,ch,effectVal));
break;
case 0x23: // envelope period
dispatchCmd(DivCommand(DIV_CMD_X1_010_ENVELOPE_PERIOD,ch,effectVal));
break;
case 0x25: // envelope slide up
dispatchCmd(DivCommand(DIV_CMD_X1_010_ENVELOPE_SLIDE,ch,effectVal));
break;
case 0x26: // envelope slide down
dispatchCmd(DivCommand(DIV_CMD_X1_010_ENVELOPE_SLIDE,ch,-effectVal));
break;
case 0x29: // auto-envelope
dispatchCmd(DivCommand(DIV_CMD_X1_010_AUTO_ENVELOPE,ch,effectVal));
break;
default:
return false;
}
break;
default:
return false;
}
return true;
}
void DivEngine::processRow(int i, bool afterDelay) {
int whatOrder=afterDelay?chan[i].delayOrder:curOrder;
int whatRow=afterDelay?chan[i].delayRow:curRow;
DivPattern* pat=song.pat[i].getPattern(song.orders.ord[i][whatOrder],false);
// pre effects
if (!afterDelay) for (int j=0; j<song.pat[i].effectRows; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
if (effect==0xed && effectVal!=0) {
if (effectVal<=nextSpeed) {
chan[i].rowDelay=effectVal+1;
chan[i].delayOrder=whatOrder;
chan[i].delayRow=whatRow;
if (effectVal==nextSpeed) {
//if (sysOfChan[i]!=DIV_SYSTEM_YM2610 && sysOfChan[i]!=DIV_SYSTEM_YM2610_EXT) chan[i].delayLocked=true;
} else {
chan[i].delayLocked=false;
}
return;
} else {
chan[i].delayLocked=false;
}
}
}
if (chan[i].delayLocked) return;
// instrument
if (pat->data[whatRow][2]!=-1) {
dispatchCmd(DivCommand(DIV_CMD_INSTRUMENT,i,pat->data[whatRow][2]));
if (chan[i].lastIns!=pat->data[whatRow][2]) {
chan[i].lastIns=pat->data[whatRow][2];
if (chan[i].inPorta && song.newInsTriggersInPorta) {
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,DIV_NOTE_NULL));
}
}
}
// note
if (pat->data[whatRow][0]==100) { // note off
//chan[i].note=-1;
chan[i].keyOn=false;
chan[i].keyOff=true;
if (chan[i].inPorta && song.noteOffResetsSlides) {
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}
}
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,i));
} else if (pat->data[whatRow][0]==101) { // note off + env release
//chan[i].note=-1;
chan[i].keyOn=false;
chan[i].keyOff=true;
if (chan[i].inPorta && song.noteOffResetsSlides) {
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}
}
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF_ENV,i));
} else if (pat->data[whatRow][0]==102) { // env release
dispatchCmd(DivCommand(DIV_CMD_ENV_RELEASE,i));
} else if (!(pat->data[whatRow][0]==0 && pat->data[whatRow][1]==0)) {
chan[i].oldNote=chan[i].note;
chan[i].note=pat->data[whatRow][0]+((signed char)pat->data[whatRow][1])*12;
if (!chan[i].keyOn) {
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsArp(dispatchChanOfChan[i])) {
chan[i].arp=0;
}
}
chan[i].doNote=true;
if (chan[i].arp!=0 && song.compatibleArpeggio) {
chan[i].arpYield=true;
}
}
// volume
if (pat->data[whatRow][3]!=-1) {
if (dispatchCmd(DivCommand(DIV_ALWAYS_SET_VOLUME,i)) || (MIN(chan[i].volMax,chan[i].volume)>>8)!=pat->data[whatRow][3]) {
chan[i].volume=pat->data[whatRow][3]<<8;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
}
chan[i].retrigSpeed=0;
short lastSlide=-1;
// effects
for (int j=0; j<song.pat[i].effectRows; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
// per-system effect
if (!perSystemEffect(i,effect,effectVal)) switch (effect) {
case 0x09: // speed 1
if (effectVal>0) speed1=effectVal;
break;
case 0x0f: // speed 2
if (effectVal>0) speed2=effectVal;
break;
case 0x0b: // change order
if (changeOrd==-1) {
changeOrd=effectVal;
changePos=0;
}
break;
case 0x0d: // next order
if (changeOrd<0 && curOrder<(song.ordersLen-1)) {
changeOrd=-2;
changePos=effectVal;
}
break;
case 0x08: // panning
dispatchCmd(DivCommand(DIV_CMD_PANNING,i,effectVal));
break;
case 0x01: // ramp up
if (song.ignoreDuplicateSlides && (lastSlide==0x01 || lastSlide==0x1337)) break;
lastSlide=0x01;
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
chan[i].portaNote=song.limitSlides?0x60:255;
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
}
break;
case 0x02: // ramp down
if (song.ignoreDuplicateSlides && (lastSlide==0x02 || lastSlide==0x1337)) break;
lastSlide=0x02;
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
chan[i].portaNote=song.limitSlides?disCont[dispatchOfChan[i]].dispatch->getPortaFloor(dispatchChanOfChan[i]):-60;
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
}
break;
case 0x03: // portamento
if (effectVal==0) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
} else {
if (chan[i].note==chan[i].oldNote && !chan[i].inPorta) {
chan[i].portaNote=chan[i].note;
chan[i].portaSpeed=-1;
} else {
chan[i].portaNote=chan[i].note;
chan[i].portaSpeed=effectVal;
chan[i].inPorta=true;
}
chan[i].portaStop=true;
if (chan[i].keyOn) chan[i].doNote=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,1));
lastSlide=0x1337; // i hate this so much
}
break;
case 0x04: // vibrato
chan[i].vibratoDepth=effectVal&15;
chan[i].vibratoRate=effectVal>>4;
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 0x07: // tremolo
// TODO
break;
case 0x0a: // volume ramp
if (effectVal!=0) {
if ((effectVal&15)!=0) {
chan[i].volSpeed=-(effectVal&15)*64;
} else {
chan[i].volSpeed=(effectVal>>4)*64;
}
} else {
chan[i].volSpeed=0;
}
break;
case 0x00: // arpeggio
chan[i].arp=effectVal;
break;
case 0x0c: // retrigger
if (effectVal!=0) {
chan[i].retrigSpeed=effectVal;
chan[i].retrigTick=0;
}
break;
case 0x90: case 0x91: case 0x92: case 0x93:
case 0x94: case 0x95: case 0x96: case 0x97:
case 0x98: case 0x99: case 0x9a: case 0x9b:
case 0x9c: case 0x9d: case 0x9e: case 0x9f: // set samp. pos
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_POS,i,(((effect&0x0f)<<8)|effectVal)*256));
break;
case 0xc0: case 0xc1: case 0xc2: case 0xc3: // set Hz
divider=((effect&0x3)<<8)|effectVal;
if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider;
clockDrift=0;
break;
case 0xe0: // arp speed
if (effectVal>0) {
song.arpLen=effectVal;
}
break;
case 0xe1: // portamento up
chan[i].portaNote=chan[i].note+(effectVal&15);
chan[i].portaSpeed=(effectVal>>4)*4;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
if ((effectVal&15)!=0) {
chan[i].inPorta=true;
chan[i].shorthandPorta=true;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
} else {
chan[i].inPorta=false;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
}
break;
case 0xe2: // portamento down
chan[i].portaNote=chan[i].note-(effectVal&15);
chan[i].portaSpeed=(effectVal>>4)*4;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=song.stopPortaOnNoteOff; // what?!
chan[i].scheduledSlideReset=false;
if ((effectVal&15)!=0) {
chan[i].inPorta=true;
chan[i].shorthandPorta=true;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
} else {
chan[i].inPorta=false;
if (!song.brokenShortcutSlides) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
}
break;
case 0xe3: // vibrato direction
chan[i].vibratoDir=effectVal;
break;
case 0xe4: // vibrato fine
chan[i].vibratoFine=effectVal;
break;
case 0xe5: // pitch
chan[i].pitch=effectVal-0x80;
if (sysOfChan[i]==DIV_SYSTEM_YM2151) { // YM2151 pitch oddity
chan[i].pitch*=2;
if (chan[i].pitch<-128) chan[i].pitch=-128;
if (chan[i].pitch>127) chan[i].pitch=127;
}
chan[i].pitch+=globalPitch;
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 0xea: // legato mode
chan[i].legato=effectVal;
break;
case 0xeb: // sample bank
dispatchCmd(DivCommand(DIV_CMD_SAMPLE_BANK,i,effectVal));
break;
case 0xec: // delayed note cut
if (effectVal>0 && effectVal<nextSpeed) {
chan[i].cut=effectVal+1;
}
break;
case 0xee: // external command
//printf("\x1b[1;36m%d: extern command %d\x1b[m\n",i,effectVal);
extValue=effectVal;
extValuePresent=true;
break;
case 0xef: // global pitch
globalPitch+=(signed char)(effectVal-0x80);
break;
case 0xf0: // set Hz by tempo
divider=(double)effectVal*2.0/5.0;
if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider;
clockDrift=0;
break;
case 0xf1: // single pitch ramp up
case 0xf2: // single pitch ramp down
if (effect==0xf1) {
chan[i].portaNote=song.limitSlides?0x60:255;
} else {
chan[i].portaNote=song.limitSlides?disCont[dispatchOfChan[i]].dispatch->getPortaFloor(dispatchChanOfChan[i]):-60;
}
chan[i].portaSpeed=effectVal;
chan[i].portaStop=true;
chan[i].nowYouCanStop=false;
chan[i].stopOnOff=false;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,true,0));
dispatchCmd(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed,chan[i].portaNote));
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].inPorta=false;
if (!song.arpNonPorta) dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
break;
case 0xf8: // single volume ramp up
chan[i].volume=MIN(chan[i].volume+effectVal*256,chan[i].volMax);
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
break;
case 0xf9: // single volume ramp down
chan[i].volume=MAX(chan[i].volume-effectVal*256,0);
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
break;
case 0xfa: // fast volume ramp
if (effectVal!=0) {
if ((effectVal&15)!=0) {
chan[i].volSpeed=-(effectVal&15)*256;
} else {
chan[i].volSpeed=(effectVal>>4)*256;
}
} else {
chan[i].volSpeed=0;
}
break;
case 0xff: // stop song
freelance=false;
playing=false;
extValuePresent=false;
stepPlay=0;
remainingLoops=-1;
sPreview.sample=-1;
sPreview.wave=-1;
sPreview.pos=0;
break;
}
}
if (chan[i].doNote) {
if (!song.continuousVibrato) {
chan[i].vibratoPos=0;
}
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
if (chan[i].legato) {
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
} else {
if (chan[i].inPorta && chan[i].keyOn && !chan[i].shorthandPorta) {
chan[i].portaNote=chan[i].note;
} else if (!chan[i].noteOnInhibit) {
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,chan[i].note,chan[i].volume>>8));
keyHit[i]=true;
}
}
chan[i].doNote=false;
if (!chan[i].keyOn && chan[i].scheduledSlideReset) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].scheduledSlideReset=false;
chan[i].inPorta=false;
}
if (!chan[i].keyOn && chan[i].volume>chan[i].volMax) {
chan[i].volume=chan[i].volMax;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
chan[i].keyOn=true;
chan[i].keyOff=false;
}
chan[i].nowYouCanStop=true;
chan[i].shorthandPorta=false;
chan[i].noteOnInhibit=false;
// post effects
for (int j=0; j<song.pat[i].effectRows; j++) {
short effect=pat->data[whatRow][4+(j<<1)];
short effectVal=pat->data[whatRow][5+(j<<1)];
if (effectVal==-1) effectVal=0;
perSystemPostEffect(i,effect,effectVal);
}
}
void DivEngine::nextRow() {
static char pb[4096];
static char pb1[4096];
static char pb2[4096];
static char pb3[4096];
if (view==DIV_STATUS_PATTERN) {
strcpy(pb1,"");
strcpy(pb3,"");
for (int i=0; i<chans; i++) {
snprintf(pb,4095," %.2x",song.orders.ord[i][curOrder]);
strcat(pb1,pb);
DivPattern* pat=song.pat[i].getPattern(song.orders.ord[i][curOrder],false);
snprintf(pb2,4095,"\x1b[37m %s",
formatNote(pat->data[curRow][0],pat->data[curRow][1]));
strcat(pb3,pb2);
if (pat->data[curRow][3]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;32m%.2x",pat->data[curRow][3]);
strcat(pb3,pb2);
}
if (pat->data[curRow][2]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[0;36m%.2x",pat->data[curRow][2]);
strcat(pb3,pb2);
}
for (int j=0; j<song.pat[i].effectRows; j++) {
if (pat->data[curRow][4+(j<<1)]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;31m%.2x",pat->data[curRow][4+(j<<1)]);
strcat(pb3,pb2);
}
if (pat->data[curRow][5+(j<<1)]==-1) {
strcat(pb3,"\x1b[m--");
} else {
snprintf(pb2,4095,"\x1b[1;37m%.2x",pat->data[curRow][5+(j<<1)]);
strcat(pb3,pb2);
}
}
}
printf("| %.2x:%s | \x1b[1;33m%3d%s\x1b[m\n",curOrder,pb1,curRow,pb3);
}
for (int i=0; i<chans; i++) {
chan[i].rowDelay=0;
processRow(i,false);
}
if (changeOrd!=-1) {
if (repeatPattern) {
curRow=0;
changeOrd=-1;
} else {
curRow=changePos;
if (changeOrd==-2) changeOrd=curOrder+1;
if (changeOrd<=curOrder) endOfSong=true;
curOrder=changeOrd;
if (curOrder>=song.ordersLen) {
curOrder=0;
endOfSong=true;
}
changeOrd=-1;
}
if (haltOn==DIV_HALT_PATTERN) halted=true;
} else if (playing) if (++curRow>=song.patLen) {
nextOrder();
if (haltOn==DIV_HALT_PATTERN) halted=true;
}
if (speedAB) {
ticks=speed2*(song.timeBase+1);
nextSpeed=speed1;
} else {
ticks=speed1*(song.timeBase+1);
nextSpeed=speed2;
}
speedAB=!speedAB;
// post row details
for (int i=0; i<chans; i++) {
DivPattern* pat=song.pat[i].getPattern(song.orders.ord[i][curOrder],false);
if (!(pat->data[curRow][0]==0 && pat->data[curRow][1]==0)) {
if (pat->data[curRow][0]!=100 && pat->data[curRow][0]!=101 && pat->data[curRow][0]!=102) {
if (!chan[i].legato) {
dispatchCmd(DivCommand(DIV_CMD_PRE_NOTE,i,ticks));
if (song.oneTickCut) {
bool doPrepareCut=true;
for (int j=0; j<song.pat[i].effectRows; j++) {
if (pat->data[curRow][4+(j<<1)]==0x03) {
doPrepareCut=false;
break;
}
if (pat->data[curRow][4+(j<<1)]==0xea) {
if (pat->data[curRow][5+(j<<1)]>0) {
doPrepareCut=false;
break;
}
}
}
if (doPrepareCut) chan[i].cut=ticks;
}
}
}
}
}
if (haltOn==DIV_HALT_ROW) halted=true;
}
bool DivEngine::nextTick(bool noAccum) {
bool ret=false;
if (divider<10) divider=10;
cycles=((int)(got.rate)<<MASTER_CLOCK_PREC)/divider;
clockDrift+=fmod((double)((int)(got.rate)<<MASTER_CLOCK_PREC),(double)divider);
if (clockDrift>=divider) {
clockDrift-=divider;
cycles++;
}
while (!pendingNotes.empty()) {
DivNoteEvent& note=pendingNotes.front();
if (note.on) {
dispatchCmd(DivCommand(DIV_CMD_INSTRUMENT,note.channel,note.ins,1));
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,note.channel,note.note));
keyHit[note.channel]=true;
chan[note.channel].noteOnInhibit=true;
} else {
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,note.channel));
}
pendingNotes.pop();
}
if (!freelance) {
if (stepPlay!=1) if (--ticks<=0) {
ret=endOfSong;
if (endOfSong) {
if (song.loopModality!=2) {
playSub(true);
}
}
endOfSong=false;
if (stepPlay==2) stepPlay=1;
nextRow();
}
// process stuff
for (int i=0; i<chans; i++) {
if (chan[i].rowDelay>0) {
if (--chan[i].rowDelay==0) {
processRow(i,true);
}
}
if (chan[i].retrigSpeed) {
if (--chan[i].retrigTick<0) {
chan[i].retrigTick=chan[i].retrigSpeed-1;
dispatchCmd(DivCommand(DIV_CMD_NOTE_ON,i,DIV_NOTE_NULL));
keyHit[i]=true;
}
}
if (chan[i].volSpeed!=0) {
chan[i].volume=(chan[i].volume&0xff)|(dispatchCmd(DivCommand(DIV_CMD_GET_VOLUME,i))<<8);
chan[i].volume+=chan[i].volSpeed;
if (chan[i].volume>chan[i].volMax) {
chan[i].volume=chan[i].volMax;
chan[i].volSpeed=0;
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
} else if (chan[i].volume<0) {
chan[i].volSpeed=0;
if (song.legacyVolumeSlides) {
chan[i].volume=chan[i].volMax+1;
} else {
chan[i].volume=0;
}
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
} else {
dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}
}
if (chan[i].vibratoDepth>0) {
chan[i].vibratoPos+=chan[i].vibratoRate;
if (chan[i].vibratoPos>=64) chan[i].vibratoPos-=64;
switch (chan[i].vibratoDir) {
case 1: // up
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(MAX(0,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
case 2: // down
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(MIN(0,(chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
default: // both
dispatchCmd(DivCommand(DIV_CMD_PITCH,i,chan[i].pitch+(((chan[i].vibratoDepth*vibTable[chan[i].vibratoPos]*chan[i].vibratoFine)>>4)/15)));
break;
}
}
if ((chan[i].keyOn || chan[i].keyOff) && chan[i].portaSpeed>0) {
if (dispatchCmd(DivCommand(DIV_CMD_NOTE_PORTA,i,chan[i].portaSpeed,chan[i].portaNote))==2 && chan[i].portaStop && song.targetResetsSlides) {
chan[i].portaSpeed=0;
chan[i].oldNote=chan[i].note;
chan[i].note=chan[i].portaNote;
chan[i].inPorta=false;
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
}
}
if (chan[i].cut>0) {
if (--chan[i].cut<1) {
chan[i].oldNote=chan[i].note;
//chan[i].note=-1;
if (chan[i].inPorta && song.noteOffResetsSlides) {
chan[i].keyOff=true;
chan[i].keyOn=false;
if (chan[i].stopOnOff) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
chan[i].stopOnOff=false;
}
if (disCont[dispatchOfChan[i]].dispatch->keyOffAffectsPorta(dispatchChanOfChan[i])) {
chan[i].portaNote=-1;
chan[i].portaSpeed=-1;
if (i==2 && sysOfChan[i]==DIV_SYSTEM_SMS) {
chan[i+1].portaNote=-1;
chan[i+1].portaSpeed=-1;
}
}
dispatchCmd(DivCommand(DIV_CMD_PRE_PORTA,i,false,0));
chan[i].scheduledSlideReset=true;
}
dispatchCmd(DivCommand(DIV_CMD_NOTE_OFF,i));
}
}
if (chan[i].arp!=0 && !chan[i].arpYield && chan[i].portaSpeed<1) {
if (--chan[i].arpTicks<1) {
chan[i].arpTicks=song.arpLen;
chan[i].arpStage++;
if (chan[i].arpStage>2) chan[i].arpStage=0;
switch (chan[i].arpStage) {
case 0:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note));
break;
case 1:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp>>4)));
break;
case 2:
dispatchCmd(DivCommand(DIV_CMD_LEGATO,i,chan[i].note+(chan[i].arp&15)));
break;
}
}
} else {
chan[i].arpYield=false;
}
}
}
// system tick
for (int i=0; i<song.systemLen; i++) disCont[i].dispatch->tick();
if (!freelance) {
if (stepPlay!=1) {
if (!noAccum) {
totalTicksR++;
totalTicks+=1000000/divider;
}
if (totalTicks>=1000000) {
totalTicks-=1000000;
totalSeconds++;
cmdsPerSecond=totalCmds-lastCmds;
lastCmds=totalCmds;
}
}
if (consoleMode) fprintf(stderr,"\x1b[2K> %d:%.2d:%.2d.%.2d %.2x/%.2x:%.3d/%.3d %4dcmd/s\x1b[G",totalSeconds/3600,(totalSeconds/60)%60,totalSeconds%60,totalTicks/10000,curOrder,song.ordersLen,curRow,song.patLen,cmdsPerSecond);
}
if (haltOn==DIV_HALT_TICK) halted=true;
return ret;
}
void DivEngine::nextBuf(float** in, float** out, int inChans, int outChans, unsigned int size) {
if (out!=NULL) {
memset(out[0],0,size*sizeof(float));
memset(out[1],0,size*sizeof(float));
}
isBusy.lock();
got.bufsize=size;
if (out!=NULL && ((sPreview.sample>=0 && sPreview.sample<(int)song.sample.size()) || (sPreview.wave>=0 && sPreview.wave<(int)song.wave.size()))) {
unsigned int samp_bbOff=0;
unsigned int prevAvail=blip_samples_avail(samp_bb);
if (prevAvail>size) prevAvail=size;
if (prevAvail>0) {
blip_read_samples(samp_bb,samp_bbOut,prevAvail,0);
samp_bbOff=prevAvail;
}
size_t prevtotal=blip_clocks_needed(samp_bb,size-prevAvail);
if (sPreview.sample>=0 && sPreview.sample<(int)song.sample.size()) {
DivSample* s=song.sample[sPreview.sample];
for (size_t i=0; i<prevtotal; i++) {
if (sPreview.pos>=s->samples) {
samp_temp=0;
} else {
samp_temp=s->data16[sPreview.pos++];
}
blip_add_delta(samp_bb,i,samp_temp-samp_prevSample);
samp_prevSample=samp_temp;
if (sPreview.pos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<(int)s->samples) {
sPreview.pos=s->loopStart;
}
}
}
if (sPreview.pos>=s->samples) {
if (s->loopStart>=0 && s->loopStart<(int)s->samples) {
sPreview.pos=s->loopStart;
} else {
sPreview.sample=-1;
}
}
} else if (sPreview.wave>=0 && sPreview.wave<(int)song.wave.size()) {
DivWavetable* wave=song.wave[sPreview.wave];
for (size_t i=0; i<prevtotal; i++) {
if (wave->max<=0) {
samp_temp=0;
} else {
samp_temp=((MIN(wave->data[sPreview.pos],wave->max)<<14)/wave->max)-8192;
}
if (++sPreview.pos>=(unsigned int)wave->len) {
sPreview.pos=0;
}
blip_add_delta(samp_bb,i,samp_temp-samp_prevSample);
samp_prevSample=samp_temp;
}
}
blip_end_frame(samp_bb,prevtotal);
blip_read_samples(samp_bb,samp_bbOut+samp_bbOff,size-samp_bbOff,0);
for (size_t i=0; i<size; i++) {
out[0][i]+=(float)samp_bbOut[i]/32768.0;
out[1][i]+=(float)samp_bbOut[i]/32768.0;
}
}
if (!playing) {
if (out!=NULL) {
memcpy(oscBuf[0],out[0],size*sizeof(float));
memcpy(oscBuf[1],out[1],size*sizeof(float));
oscSize=size;
}
isBusy.unlock();
return;
}
// logic starts here
size_t runtotal[32];
size_t runLeft[32];
size_t runPos[32];
size_t lastAvail[32];
for (int i=0; i<song.systemLen; i++) {
lastAvail[i]=blip_samples_avail(disCont[i].bb[0]);
if (lastAvail[i]>0) {
disCont[i].flush(lastAvail[i]);
}
runtotal[i]=blip_clocks_needed(disCont[i].bb[0],size-lastAvail[i]);
if (runtotal[i]>disCont[i].bbInLen) {
delete disCont[i].bbIn[0];
delete disCont[i].bbIn[1];
disCont[i].bbIn[0]=new short[runtotal[i]+256];
disCont[i].bbIn[1]=new short[runtotal[i]+256];
disCont[i].bbInLen=runtotal[i]+256;
}
runLeft[i]=runtotal[i];
runPos[i]=0;
}
if (metroTickLen<size) {
if (metroTick!=NULL) delete[] metroTick;
metroTick=new unsigned char[size];
metroTickLen=size;
}
memset(metroTick,0,size);
int attempts=0;
int runLeftG=size<<MASTER_CLOCK_PREC;
while (++attempts<100) {
// 0. check if we've halted
if (halted) break;
// 1. check whether we are done with all buffers
if (runLeftG<=0) break;
// 2. check whether we gonna tick
if (cycles<=0) {
// we have to tick
if (!freelance && stepPlay!=-1) {
unsigned int realPos=size-(runLeftG>>MASTER_CLOCK_PREC);
if (realPos>=size) realPos=size-1;
if (song.hilightA>0) {
if ((curRow%song.hilightA)==0 && ticks==1) metroTick[realPos]=1;
}
if (song.hilightB>0) {
if ((curRow%song.hilightB)==0 && ticks==1) metroTick[realPos]=2;
}
}
if (nextTick()) {
if (remainingLoops>0) {
remainingLoops--;
if (!remainingLoops) {
logI("end of song!\n");
remainingLoops=-1;
playing=false;
freelance=false;
extValuePresent=false;
break;
}
}
}
} else {
// 3. tick the clock and fill buffers as needed
if (cycles<runLeftG) {
for (int i=0; i<song.systemLen; i++) {
int total=(cycles*runtotal[i])/(size<<MASTER_CLOCK_PREC);
disCont[i].acquire(runPos[i],total);
runLeft[i]-=total;
runPos[i]+=total;
}
runLeftG-=cycles;
cycles=0;
} else {
cycles-=runLeftG;
runLeftG=0;
for (int i=0; i<song.systemLen; i++) {
disCont[i].acquire(runPos[i],runLeft[i]);
runLeft[i]=0;
}
}
}
}
if (out==NULL || halted) {
isBusy.unlock();
return;
}
logD("attempts: %d\n",attempts);
if (attempts>=100) {
logE("hang detected! stopping! at %d seconds %d micro\n",totalSeconds,totalTicks);
freelance=false;
playing=false;
extValuePresent=false;
}
totalProcessed=size-(runLeftG>>MASTER_CLOCK_PREC);
for (int i=0; i<song.systemLen; i++) {
disCont[i].fillBuf(runtotal[i],lastAvail[i],size-lastAvail[i]);
}
for (int i=0; i<song.systemLen; i++) {
float volL=((float)song.systemVol[i]/64.0f)*((float)MIN(127,127-(int)song.systemPan[i])/127.0f)*song.masterVol;
float volR=((float)song.systemVol[i]/64.0f)*((float)MIN(127,127+(int)song.systemPan[i])/127.0f)*song.masterVol;
if (disCont[i].dispatch->isStereo()) {
for (size_t j=0; j<size; j++) {
out[0][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volL;
out[1][j]+=((float)disCont[i].bbOut[1][j]/32768.0)*volR;
}
} else {
for (size_t j=0; j<size; j++) {
out[0][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volL;
out[1][j]+=((float)disCont[i].bbOut[0][j]/32768.0)*volR;
}
}
}
if (metronome) for (size_t i=0; i<size; i++) {
if (metroTick[i]) {
if (metroTick[i]==2) {
metroFreq=1400/got.rate;
} else {
metroFreq=1050/got.rate;
}
metroPos=0;
metroAmp=0.7f;
}
if (metroAmp>0.0f) {
out[0][i]+=(sin(metroPos*2*M_PI))*metroAmp;
out[1][i]+=(sin(metroPos*2*M_PI))*metroAmp;
}
metroAmp-=0.0003f;
if (metroAmp<0.0f) metroAmp=0.0f;
metroPos+=metroFreq;
while (metroPos>=1) metroPos--;
}
memcpy(oscBuf[0],out[0],size*sizeof(float));
memcpy(oscBuf[1],out[1],size*sizeof(float));
oscSize=size;
if (forceMono) {
for (size_t i=0; i<size; i++) {
out[0][i]=(out[0][i]+out[1][i])*0.5;
out[1][i]=out[0][i];
}
}
isBusy.unlock();
}
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