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furnace/src/engine/platform/qsound.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 "qsound.h"
#include "../engine.h"
#include "../../ta-log.h"
#include <math.h>
#include <map>
#define CHIP_DIVIDER (1248*2)
#define QS_NOTE_FREQUENCY(x) parent->calcBaseFreq(440,4096,(x)-3,false)
#define rWrite(a,v) {if(!skipRegisterWrites) {qsound_write_data(&chip,a,v); if(dumpWrites) addWrite(a,v); }}
#define immWrite(a,v) {qsound_write_data(&chip,a,v); if(dumpWrites) addWrite(a,v);}
const char* regCheatSheetQSound[]={
"Ch15_Bank", "00",
"Ch00_Start", "01",
"Ch00_Freq", "02",
"Ch00_Phase", "03",
"Ch00_Loop", "04",
"Ch00_End", "05",
"Ch00_Volume", "06",
"Ch00_Bank", "08",
"Ch01_Start", "09",
"Ch01_Freq", "0A",
"Ch01_Phase", "0B",
"Ch01_Loop", "0C",
"Ch01_End", "0D",
"Ch01_Volume", "0E",
"Ch01_Bank", "10",
"Ch02_Start", "11",
"Ch02_Freq", "12",
"Ch02_Phase", "13",
"Ch02_Loop", "14",
"Ch02_End", "15",
"Ch02_Volume", "16",
"Ch02_Bank", "18",
"Ch03_Start", "19",
"Ch03_Freq", "1A",
"Ch03_Phase", "1B",
"Ch03_Loop", "1C",
"Ch03_End", "1D",
"Ch03_Volume", "1E",
"Ch03_Bank", "20",
"Ch04_Start", "21",
"Ch04_Freq", "22",
"Ch04_Phase", "23",
"Ch04_Loop", "24",
"Ch04_End", "25",
"Ch04_Volume", "26",
"Ch04_Bank", "28",
"Ch05_Start", "29",
"Ch05_Freq", "2A",
"Ch05_Phase", "2B",
"Ch05_Loop", "2C",
"Ch05_End", "2D",
"Ch05_Volume", "2E",
"Ch05_Bank", "30",
"Ch06_Start", "31",
"Ch06_Freq", "32",
"Ch06_Phase", "33",
"Ch06_Loop", "34",
"Ch06_End", "35",
"Ch06_Volume", "36",
"Ch06_Bank", "38",
"Ch07_Start", "39",
"Ch07_Freq", "3A",
"Ch07_Phase", "3B",
"Ch07_Loop", "3C",
"Ch07_End", "3D",
"Ch07_Volume", "3E",
"Ch07_Bank", "40",
"Ch08_Start", "41",
"Ch08_Freq", "42",
"Ch08_Phase", "43",
"Ch08_Loop", "44",
"Ch08_End", "45",
"Ch08_Volume", "46",
"Ch08_Bank", "48",
"Ch09_Start", "49",
"Ch09_Freq", "4A",
"Ch09_Phase", "4B",
"Ch09_Loop", "4C",
"Ch09_End", "4D",
"Ch09_Volume", "4E",
"Ch09_Bank", "50",
"Ch10_Start", "51",
"Ch10_Freq", "52",
"Ch10_Phase", "53",
"Ch10_Loop", "54",
"Ch10_End", "55",
"Ch10_Volume", "56",
"Ch10_Bank", "58",
"Ch11_Start", "59",
"Ch11_Freq", "5A",
"Ch11_Phase", "5B",
"Ch11_Loop", "5C",
"Ch11_End", "5D",
"Ch11_Volume", "5E",
"Ch11_Bank", "60",
"Ch12_Start", "61",
"Ch12_Freq", "62",
"Ch12_Phase", "63",
"Ch12_Loop", "64",
"Ch12_End", "65",
"Ch12_Volume", "66",
"Ch12_Bank", "68",
"Ch13_Start", "69",
"Ch13_Freq", "6A",
"Ch13_Phase", "6B",
"Ch13_Loop", "6C",
"Ch13_End", "6D",
"Ch13_Volume", "6E",
"Ch13_Bank", "70",
"Ch14_Start", "71",
"Ch14_Freq", "72",
"Ch14_Phase", "73",
"Ch14_Loop", "74",
"Ch14_End", "75",
"Ch14_Volume", "76",
"Ch14_Bank", "78",
"Ch15_Start", "79",
"Ch15_Freq", "7A",
"Ch15_Phase", "7B",
"Ch15_Loop", "7C",
"Ch15_End", "7D",
"Ch15_Volume", "7E",
"Ch00_Panning", "80",
"Ch01_Panning", "81",
"Ch02_Panning", "82",
"Ch03_Panning", "83",
"Ch04_Panning", "84",
"Ch05_Panning", "85",
"Ch06_Panning", "86",
"Ch07_Panning", "87",
"Ch08_Panning", "88",
"Ch09_Panning", "89",
"Ch10_Panning", "8A",
"Ch11_Panning", "8B",
"Ch12_Panning", "8C",
"Ch13_Panning", "8D",
"Ch14_Panning", "8E",
"Ch15_Panning", "8F",
"Adpcm0_Panning","90",
"Adpcm1_Panning","91",
"Adpcm2_Panning","92",
"Echo_Feedback","93",
"Ch00_Echo", "BA",
"Ch01_Echo", "BB",
"Ch02_Echo", "BC",
"Ch03_Echo", "BD",
"Ch04_Echo", "BE",
"Ch05_Echo", "BF",
"Ch06_Echo", "C0",
"Ch07_Echo", "C1",
"Ch08_Echo", "C2",
"Ch09_Echo", "C3",
"Ch10_Echo", "C4",
"Ch11_Echo", "C5",
"Ch12_Echo", "C6",
"Ch13_Echo", "C7",
"Ch14_Echo", "C8",
"Ch15_Echo", "C9",
"Adpcm0_Start", "CA",
"Adpcm0_End", "CB",
"Adpcm0_Bank", "CC",
"Adpcm0_Volume","CD",
"Adpcm1_Start", "CE",
"Adpcm1_End", "CF",
"Adpcm1_Bank", "D0",
"Adpcm1_Volume","D1",
"Adpcm2_Start", "D2",
"Adpcm2_End", "D3",
"Adpcm2_Bank", "D4",
"Adpcm2_Volume","D5",
"Adpcm0_KeyOn", "D6",
"Adpcm1_KeyOn", "D7",
"Adpcm2_KeyOn", "D8",
"Echo_Delay", "D9",
"L_Wet_Filter", "DA",
"L_Dry_Filter", "DB",
"R_Wet_Filter", "DC",
"R_Dry_Filter", "DD",
"L_Wet_Delay", "DE",
"L_Dry_Delay", "DF",
"R_Wet_Delay", "E0",
"R_Dry_Delay", "E1",
"Delay_Flag", "E2",
"Mode_Select", "E3", //valid: 0000,0288,0039,061A,004F
"L_Wet_Volume", "E4",
"L_Dry_Volume", "E5",
"R_Wet_Volume", "E6",
"R_Dry_Volume", "E7",
NULL
};
enum q1_register_name {
Q1V_BANK = 0,
Q1V_START = 1,
Q1V_FREQ = 2,
Q1V_PHASE = 3,
Q1V_LOOP = 4,
Q1V_END = 5,
Q1V_VOL = 6,
Q1V_REG_COUNT = 7,
Q1_PAN = 0x80,
Q1_ECHO = 0xba,
Q1A_PAN = 0x90,
Q1A_START = 0xca,
Q1A_END = 0xcb,
Q1A_BANK = 0xcc,
Q1A_VOL = 0xcd,
Q1A_KEYON = 0xd6,
Q1_ECHO_FEEDBACK = 0x93,
Q1_ECHO_LENGTH = 0xd9,
};
const unsigned char q1_reg_map[Q1V_REG_COUNT][16] = {
{0x78,0x00,0x08,0x10,0x18,0x20,0x28,0x30,0x38,0x40,0x48,0x50,0x58,0x60,0x68,0x70},
{0x01,0x09,0x11,0x19,0x21,0x29,0x31,0x39,0x41,0x49,0x51,0x59,0x61,0x69,0x71,0x79},
{0x02,0x0a,0x12,0x1a,0x22,0x2a,0x32,0x3a,0x42,0x4a,0x52,0x5a,0x62,0x6a,0x72,0x7a},
{0x03,0x0b,0x13,0x1b,0x23,0x2b,0x33,0x3b,0x43,0x4b,0x53,0x5b,0x63,0x6b,0x73,0x7b},
{0x04,0x0c,0x14,0x1c,0x24,0x2c,0x34,0x3c,0x44,0x4c,0x54,0x5c,0x64,0x6c,0x74,0x7c},
{0x05,0x0d,0x15,0x1d,0x25,0x2d,0x35,0x3d,0x45,0x4d,0x55,0x5d,0x65,0x6d,0x75,0x7d},
{0x06,0x0e,0x16,0x1e,0x26,0x2e,0x36,0x3e,0x46,0x4e,0x56,0x5e,0x66,0x6e,0x76,0x7e},
};
const unsigned char q1a_start_map[3]={
0xca, 0xce, 0xd2
};
const unsigned char q1a_end_map[3]={
0xcb, 0xcf, 0xd3
};
const unsigned char q1a_bank_map[3]={
0xcc, 0xd0, 0xd4
};
const unsigned char q1a_vol_map[3]={
0xcd, 0xd1, 0xd5
};
const char** DivPlatformQSound::getRegisterSheet() {
return regCheatSheetQSound;
}
void DivPlatformQSound::acquire(short** buf, size_t len) {
for (size_t h=0; h<len; h++) {
qsound_update(&chip);
buf[0][h]=chip.out[0];
buf[1][h]=chip.out[1];
for (int i=0; i<19; i++) {
int data=chip.voice_output[i]<<1;
if (data<-32768) data=-32768;
if (data>32767) data=32767;
oscBuf[i]->data[oscBuf[i]->needle++]=data;
}
}
}
void DivPlatformQSound::tick(bool sysTick) {
for (int i=0; i<19; i++) {
chan[i].std.next();
if (chan[i].std.vol.had) {
if (chan[i].isNewQSound) {
chan[i].outVol=((chan[i].vol&0xff)*MIN(16383,chan[i].std.vol.val))/16383;
chan[i].resVol=((chan[i].vol&0xff)*MIN(16383,chan[i].std.vol.val))/255;
} else {
chan[i].outVol=((chan[i].vol&0xff)*chan[i].std.vol.val)>>6;
chan[i].resVol=chan[i].outVol<<4;
}
// Check if enabled and write volume
if (chan[i].active) {
if (i<16) {
rWrite(q1_reg_map[Q1V_VOL][i],chan[i].resVol);
} else {
rWrite(q1a_vol_map[i-16],chan[i].resVol);
}
}
}
uint16_t qsound_bank = 0;
uint16_t qsound_addr = 0;
uint16_t qsound_loop = 0;
uint16_t qsound_end = 0;
if (chan[i].sample>=0 && chan[i].sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(chan[i].sample);
if (i<16) {
qsound_bank = 0x8000 | (offPCM[chan[i].sample] >> 16);
qsound_addr = offPCM[chan[i].sample] & 0xffff;
} else {
qsound_bank = 0x8000 | (offBS[chan[i].sample] >> 16);
qsound_addr = offBS[chan[i].sample] & 0xffff;
}
int loopStart=s->loopStart;
int length = s->loopEnd;
if (length > 65536 - 16) {
length = 65536 - 16;
}
if (!s->isLoopable()) {
if (i<16) {
qsound_end = offPCM[chan[i].sample] + length + 15;
} else {
qsound_end = offBS[chan[i].sample] + (length>>1) + 15;
}
qsound_loop = 15;
} else {
if (i<16) {
qsound_end = offPCM[chan[i].sample] + length;
} else {
qsound_end = offBS[chan[i].sample] + (length>>1);
}
qsound_loop = length - loopStart;
}
}
if (NEW_ARP_STRAT) {
chan[i].handleArp();
} else if (chan[i].std.arp.had) {
if (!chan[i].inPorta) {
chan[i].baseFreq=QS_NOTE_FREQUENCY(parent->calcArp(chan[i].note,chan[i].std.arp.val));
}
chan[i].freqChanged=true;
}
if (chan[i].isNewQSound && chan[i].std.duty.had) {
chan[i].echo=CLAMP(chan[i].std.duty.val,0,32767);
if (i<16) {
immWrite(Q1_ECHO+i,chan[i].echo&0x7fff);
}
}
if (chan[i].isNewQSound && chan[i].std.ex1.had) {
immWrite(Q1_ECHO_FEEDBACK,chan[i].std.ex1.val&0x3fff);
}
if (chan[i].isNewQSound && chan[i].std.ex2.had) {
immWrite(Q1_ECHO_LENGTH,0xfff-(2725-CLAMP(chan[i].std.ex2.val&0xfff,0,2725)));
}
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,-32768,32767);
} else {
chan[i].pitch2=chan[i].std.pitch.val;
}
chan[i].freqChanged=true;
}
if (chan[i].std.panL.had) { // panning
chan[i].panning=chan[i].std.panL.val+16;
}
if (chan[i].std.panR.had) { // surround
chan[i].surround=chan[i].std.panR.val;
}
if (chan[i].std.panL.had || chan[i].std.panR.had) {
immWrite(Q1_PAN+i,chan[i].panning+0x110+(chan[i].surround?0:0x30));
}
if (chan[i].std.phaseReset.had) {
if (chan[i].std.phaseReset.val==1 && chan[i].active && (chan[i].sample>=0 && chan[i].sample<parent->song.sampleLen)) {
chan[i].keyOn=true;
}
}
if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) {
//DivInstrument* ins=parent->getIns(chan[i].ins,DIV_INS_AMIGA);
double off=1.0;
if (chan[i].sample>=0 && chan[i].sample<parent->song.sampleLen) {
DivSample* s=parent->getSample(chan[i].sample);
if (s->centerRate<1) {
off=1.0;
} else {
off=(double)s->centerRate/24038.0/16.0;
}
}
chan[i].freq=off*parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,false,2,chan[i].pitch2,440.0,4096.0);
if (chan[i].freq>0xefff) chan[i].freq=0xefff;
if (chan[i].keyOn) {
if (i<16) {
rWrite(q1_reg_map[Q1V_BANK][i], qsound_bank);
rWrite(q1_reg_map[Q1V_END][i], qsound_end);
rWrite(q1_reg_map[Q1V_LOOP][i], qsound_loop);
rWrite(q1_reg_map[Q1V_START][i], qsound_addr);
rWrite(q1_reg_map[Q1V_PHASE][i], 0x8000);
} else {
rWrite(Q1A_KEYON+(i-16),0);
rWrite(q1a_bank_map[i-16], qsound_bank);
rWrite(q1a_end_map[i-16], qsound_end);
rWrite(q1a_start_map[i-16], qsound_addr);
rWrite(Q1A_KEYON+(i-16),1);
}
//logV("ch %d bank=%04x, addr=%04x, end=%04x, loop=%04x!",i,qsound_bank,qsound_addr,qsound_end,qsound_loop);
// Write sample address. Enable volume
if (!chan[i].std.vol.had) {
if (chan[i].isNewQSound) {
chan[i].resVol=(chan[i].vol*16383)/255;
} else {
chan[i].resVol=chan[i].vol<<4;
}
if (i<16) {
rWrite(q1_reg_map[Q1V_VOL][i],chan[i].resVol);
} else {
rWrite(q1a_vol_map[i-16],chan[i].resVol);
}
}
}
if (chan[i].keyOff) {
// Disable volume
if (i<16) {
rWrite(q1_reg_map[Q1V_VOL][i],0);
rWrite(q1_reg_map[Q1V_FREQ][i],0);
} else {
rWrite(q1a_vol_map[i-16],0);
rWrite(Q1A_KEYON+(i-16),0);
rWrite(q1a_end_map[i-16], 1);
rWrite(q1a_start_map[i-16], 0);
rWrite(Q1A_KEYON+(i-16),1);
}
} else if (chan[i].active) {
//logV("ch %d frequency set to %04x, off=%f, note=%d, %04x!",i,chan[i].freq,off,chan[i].note,QS_NOTE_FREQUENCY(chan[i].note));
if (i<16) {
rWrite(q1_reg_map[Q1V_FREQ][i],chan[i].freq);
}
}
if (chan[i].keyOn) chan[i].keyOn=false;
if (chan[i].keyOff) chan[i].keyOff=false;
chan[i].freqChanged=false;
}
}
}
int DivPlatformQSound::dispatch(DivCommand c) {
switch (c.cmd) {
case DIV_CMD_NOTE_ON: {
DivInstrument* ins=parent->getIns(chan[c.chan].ins,DIV_INS_AMIGA);
chan[c.chan].isNewQSound=(ins->type==DIV_INS_QSOUND);
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].sample=ins->amiga.getSample(c.value);
c.value=ins->amiga.getFreq(c.value);
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].baseFreq=QS_NOTE_FREQUENCY(c.value);
}
if (chan[c.chan].sample<0 || chan[c.chan].sample>=parent->song.sampleLen) {
chan[c.chan].sample=-1;
}
if (c.value!=DIV_NOTE_NULL) {
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
}
chan[c.chan].active=true;
chan[c.chan].keyOn=true;
chan[c.chan].keyOff=false;
chan[c.chan].macroInit(ins);
if (!parent->song.brokenOutVol && !chan[c.chan].std.vol.will) {
chan[c.chan].outVol=chan[c.chan].vol;
if (chan[c.chan].isNewQSound) {
chan[c.chan].resVol=(chan[c.chan].outVol*16383)/255;
} else {
chan[c.chan].resVol=chan[c.chan].outVol<<4;
}
}
break;
}
case DIV_CMD_NOTE_OFF:
chan[c.chan].sample=-1;
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) {
// Check if enabled and write volume
chan[c.chan].outVol=c.value;
if (chan[c.chan].isNewQSound) {
chan[c.chan].resVol=(chan[c.chan].outVol*16383)/255;
} else {
chan[c.chan].resVol=chan[c.chan].outVol<<4;
}
if (chan[c.chan].active) {
if (c.chan<16) {
rWrite(q1_reg_map[Q1V_VOL][c.chan],chan[c.chan].resVol);
} else {
rWrite(q1a_vol_map[c.chan-16],chan[c.chan].resVol);
}
}
}
}
break;
case DIV_CMD_GET_VOLUME:
if (chan[c.chan].std.vol.has) {
return chan[c.chan].vol;
}
return chan[c.chan].outVol;
break;
case DIV_CMD_PANNING:
chan[c.chan].panning=parent->convertPanSplitToLinearLR(c.value,c.value2,32);
immWrite(Q1_PAN+c.chan,chan[c.chan].panning+0x110+(chan[c.chan].surround?0:0x30));
break;
case DIV_CMD_QSOUND_ECHO_LEVEL:
chan[c.chan].echo=c.value<<7;
if (c.chan>=16) break;
immWrite(Q1_ECHO+c.chan,chan[c.chan].echo&0x7fff);
break;
case DIV_CMD_QSOUND_ECHO_FEEDBACK:
immWrite(Q1_ECHO_FEEDBACK, c.value << 6);
break;
case DIV_CMD_QSOUND_ECHO_DELAY:
immWrite(Q1_ECHO_LENGTH, (c.value > 2725 ? 0xfff : 0xfff - (2725 - c.value)));
break;
case DIV_CMD_QSOUND_SURROUND:
chan[c.chan].surround=c.value;
immWrite(Q1_PAN+c.chan,chan[c.chan].panning+0x110+(chan[c.chan].surround?0:0x30));
break;
case DIV_CMD_PITCH:
chan[c.chan].pitch=c.value;
chan[c.chan].freqChanged=true;
break;
case DIV_CMD_NOTE_PORTA: {
int destFreq=QS_NOTE_FREQUENCY(c.value2);
bool return2=false;
if (destFreq>chan[c.chan].baseFreq) {
chan[c.chan].baseFreq+=c.value;
if (chan[c.chan].baseFreq>=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
} else {
chan[c.chan].baseFreq-=c.value;
if (chan[c.chan].baseFreq<=destFreq) {
chan[c.chan].baseFreq=destFreq;
return2=true;
}
}
chan[c.chan].freqChanged=true;
if (return2) {
chan[c.chan].inPorta=false;
return 2;
}
break;
}
case DIV_CMD_LEGATO: {
chan[c.chan].baseFreq=QS_NOTE_FREQUENCY(c.value+((HACKY_LEGATO_MESS)?(chan[c.chan].std.arp.val-12):(0)));
chan[c.chan].freqChanged=true;
chan[c.chan].note=c.value;
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_AMIGA));
}
if (!chan[c.chan].inPorta && c.value && !parent->song.brokenPortaArp && chan[c.chan].std.arp.will && !NEW_ARP_STRAT) chan[c.chan].baseFreq=QS_NOTE_FREQUENCY(chan[c.chan].note);
chan[c.chan].inPorta=c.value;
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 DivPlatformQSound::muteChannel(int ch, bool mute) {
if (mute) {
chip.mute_mask|=(1<<ch);
} else {
chip.mute_mask&=~(1<<ch);
}
}
void DivPlatformQSound::forceIns() {
// TODO: what?
for (int i=0; i<19; i++) {
chan[i].insChanged=true;
chan[i].freqChanged=true;
chan[i].keyOff=true;
//chan[i].sample=-1;
}
}
void* DivPlatformQSound::getChanState(int ch) {
return &chan[ch];
}
DivMacroInt* DivPlatformQSound::getChanMacroInt(int ch) {
return &chan[ch].std;
}
DivDispatchOscBuffer* DivPlatformQSound::getOscBuffer(int ch) {
return oscBuf[ch];
}
void DivPlatformQSound::reset() {
for (int i=0; i<19; i++) {
chan[i]=DivPlatformQSound::Channel();
chan[i].std.setEngine(parent);
}
qsound_reset(&chip);
while(!chip.ready_flag) {
qsound_update(&chip);
}
immWrite(Q1_ECHO_LENGTH, 0xfff - (2725 - echoDelay));
immWrite(Q1_ECHO_FEEDBACK, echoFeedback << 6);
}
int DivPlatformQSound::getOutputCount() {
return 2;
}
bool DivPlatformQSound::keyOffAffectsArp(int ch) {
return true;
}
void DivPlatformQSound::notifyInsChange(int ins) {
for (int i=0; i<19; i++) {
if (chan[i].ins==ins) {
chan[i].insChanged=true;
}
}
}
void DivPlatformQSound::notifyWaveChange(int wave) {
// yeah won't add wavetables
}
void DivPlatformQSound::notifyInsDeletion(void* ins) {
for (int i=0; i<19; i++) {
chan[i].std.notifyInsDeletion((DivInstrument*)ins);
}
}
void DivPlatformQSound::setFlags(const DivConfig& flags) {
echoDelay = 2725 - flags.getInt("echoDelay",0);
echoFeedback = flags.getInt("echoFeedback",0) & 255;
if (echoDelay < 0) {
echoDelay = 0;
}
if (echoDelay > 2725) {
echoDelay = 2725;
}
//rate=chipClock/CHIP_DIVIDER;
}
void DivPlatformQSound::poke(unsigned int addr, unsigned short val) {
immWrite(addr, val);
immWrite(addr, val);
}
void DivPlatformQSound::poke(std::vector<DivRegWrite>& wlist) {
for (DivRegWrite& i: wlist) immWrite(i.addr,i.val);
}
unsigned char* DivPlatformQSound::getRegisterPool() {
unsigned short* regPoolPtr = regPool;
for(int i=0; i<256; i++)
{
uint16_t data = qsound_read_data(&chip, i);
*regPoolPtr++ = data;
}
return (unsigned char*)regPool;
}
int DivPlatformQSound::getRegisterPoolSize() {
return 256;
}
int DivPlatformQSound::getRegisterPoolDepth() {
return 16;
}
const void* DivPlatformQSound::getSampleMem(int index) {
return (index == 0 || index == 1) ? sampleMem : NULL;
}
size_t DivPlatformQSound::getSampleMemCapacity(int index) {
return index == 0 ? 16777216 : index == 1 ? (sampleMemUsage>=16777216?1:(16777216 - sampleMemUsage)) : 0;
}
size_t DivPlatformQSound::getSampleMemUsage(int index) {
return index == 0 ? sampleMemLen : index == 1 ? ((sampleMemUsage>=sampleMemLenBS)?0:(sampleMemLenBS - sampleMemUsage)) : 0;
}
bool DivPlatformQSound::isSampleLoaded(int index, int sample) {
if (index<0 || index>1) return false;
if (sample<0 || sample>255) return false;
if (index==1) return sampleLoadedBS[sample];
return sampleLoaded[sample];
}
const char* DivPlatformQSound::getSampleMemName(int index) {
return index == 0 ? "PCM" : index == 1 ? "ADPCM" : NULL;
}
void DivPlatformQSound::renderSamples(int sysID) {
memset(sampleMem,0,getSampleMemCapacity());
memset(sampleLoaded,0,256*sizeof(bool));
memset(sampleLoadedBS,0,256*sizeof(bool));
size_t memPos=0;
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
if (!s->renderOn[0][sysID]) {
offPCM[i]=0;
continue;
}
int length=s->length8;
if (length>65536-16) {
length=65536-16;
}
if ((memPos&0xff0000)!=((memPos+length)&0xff0000)) {
memPos=(memPos+0xffff)&0xff0000;
}
if (memPos>=getSampleMemCapacity()) {
logW("out of QSound PCM memory for sample %d!",i);
break;
}
if (memPos+length>=getSampleMemCapacity()) {
for (unsigned int i=0; i<getSampleMemCapacity()-(memPos+length); i++) {
sampleMem[(memPos+i)^0x8000]=s->data8[i];
}
logW("out of QSound PCM memory for sample %d!",i);
} else {
for (int i=0; i<length; i++) {
sampleMem[(memPos+i)^0x8000]=s->data8[i];
}
sampleLoaded[i]=true;
}
offPCM[i]=memPos^0x8000;
memPos+=length+16;
}
sampleMemLen=memPos+256;
memPos=(memPos+0xffff)&0xff0000;
sampleMemUsage=memPos;
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
if (!s->renderOn[1][sysID]) {
offBS[i]=0;
continue;
}
int length=s->lengthQSoundA;
if (length>65536) {
length=65536;
}
if ((memPos&0xff0000)!=((memPos+length)&0xff0000)) {
memPos=(memPos+0xffff)&0xff0000;
}
if (memPos>=getSampleMemCapacity()) {
logW("out of QSound ADPCM memory for sample %d!",i);
break;
}
if (memPos+length>=getSampleMemCapacity()) {
for (unsigned int i=0; i<getSampleMemCapacity()-(memPos+length); i++) {
sampleMem[(memPos+i)]=s->dataQSoundA[i];
}
logW("out of QSound ADPCM memory for sample %d!",i);
} else {
for (int i=0; i<length; i++) {
sampleMem[(memPos+i)]=s->dataQSoundA[i];
}
sampleLoadedBS[i]=true;
}
offBS[i]=memPos;
memPos+=length+16;
}
sampleMemLenBS=memPos+256;
}
int DivPlatformQSound::init(DivEngine* p, int channels, int sugRate, const DivConfig& flags) {
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
for (int i=0; i<19; i++) {
oscBuf[i]=new DivDispatchOscBuffer;
//isMuted[i]=false;
}
setFlags(flags);
chipClock=60000000;
rate = qsound_start(&chip, chipClock);
sampleMem=new unsigned char[getSampleMemCapacity()];
sampleMemLen=0;
sampleMemLenBS=0;
sampleMemUsage=0;
chip.rom_data=sampleMem;
chip.rom_mask=0xffffff;
reset();
for (int i=0; i<19; i++) {
oscBuf[i]->rate=rate;
}
return 19;
}
void DivPlatformQSound::quit() {
delete[] sampleMem;
for (int i=0; i<19; i++) {
delete oscBuf[i];
}
}
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