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Merged with latest Munt CVS.

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* Added support for most of the extended capabilities of the CM-32L/LAPC-I (more rhythm timbres, more rhythm key mappings, more PCM samples).
* The control ROM is now identified by searching for matching ID strings at various locations in the file. There are now a lot of safety checks to help ensure that a bad ROM will not crash the emulator.
* Three control ROM versions are now identified and mapped out - an original MT-32 control ROM, an original CM-32L ROM, and the Blue Ridge modified MT-32 ROM.
* Now supports the expression controller properly.
* Sustain is now turned off correctly again.
* "All Notes Off" no longer stops notes held by the sustain controller.
* Implemented "Reset all controllers".
* Stereo pan positions are no longer inverted.
* Volume, pitch, filter and envelopes are now more accurately calculated. Overall, the sound emulation is much more accurate.
* Waveforms are now slightly more accurate (in terms of pitch), necessitating a regeneration.
* Handling of unusual sysex messages has been improved (fixes sysex messages from Java's MIDI classes on Windows).
* Fixed a reverb bug during periods of silence.

svn-id: r17188
This commit is contained in:
Jerome Fisher 2005-03-20 16:24:55 +00:00
parent 9880288669
commit 7f83c47860
14 changed files with 1030 additions and 675 deletions

8
sound/softsynth/mt32/i386.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -465,7 +465,7 @@ NO_3DNOW:
#endif
}
float iir_filter_sse(float input,float *hist1_ptr, float *coef_ptr, int revLevel) {
float iir_filter_sse(float input,float *hist1_ptr, float *coef_ptr) {
float output;
// 1st number of coefficients array is overall input scale factor, or filter gain
@ -542,11 +542,10 @@ float iir_filter_sse(float input,float *hist1_ptr, float *coef_ptr, int revLevel
#else
output = atti386_iir_filter_sse(&output, hist1_ptr, coef_ptr);
#endif
output *= ResonInv[revLevel];
return output;
}
float iir_filter_3dnow(float input,float *hist1_ptr, float *coef_ptr, int revLevel) {
float iir_filter_3dnow(float input,float *hist1_ptr, float *coef_ptr) {
float output;
// 1st number of coefficients array is overall input scale factor, or filter gain
@ -624,7 +623,6 @@ float iir_filter_3dnow(float input,float *hist1_ptr, float *coef_ptr, int revLev
#else
output = atti386_iir_filter_3DNow(output, hist1_ptr, coef_ptr);
#endif
output *= ResonInv[revLevel];
return output;
}

8
sound/softsynth/mt32/i386.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -30,9 +30,9 @@ bool DetectSIMD();
// Function that detects the availablity of 3DNow instructions
bool Detect3DNow();
float iir_filter_sse(float input,float *hist1_ptr, float *coef_ptr, int revLevel);
float iir_filter_3dnow(float input,float *hist1_ptr, float *coef_ptr, int revLevel);
float iir_filter_normal(float input,float *hist1_ptr, float *coef_ptr, int revLevel);
float iir_filter_sse(float input,float *hist1_ptr, float *coef_ptr);
float iir_filter_3dnow(float input,float *hist1_ptr, float *coef_ptr);
float iir_filter_normal(float input,float *hist1_ptr, float *coef_ptr);
#if MT32EMU_USE_MMX > 0
int i386_partialProductOutput(int len, Bit16s leftvol, Bit16s rightvol, Bit16s *partialBuf, Bit16s *mixedBuf);

2
sound/softsynth/mt32/mt32emu.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to

125
sound/softsynth/mt32/part.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -66,18 +66,18 @@ Part::Part(Synth *useSynth, unsigned int usePartNum) {
this->partNum = usePartNum;
patchCache[0].dirty = true;
holdpedal = false;
patchTemp = &synth->mt32ram.patchSettings[partNum];
if (usePartNum == 8) {
// Nasty hack for rhythm
patchTemp = NULL;
timbreTemp = NULL;
} else {
sprintf(name, "Part %d", partNum + 1);
patchTemp = &synth->mt32ram.patchSettings[partNum];
timbreTemp = &synth->mt32ram.timbreSettings[partNum];
}
currentInstr[0] = 0;
currentInstr[10] = 0;
volume = voltable[102]; //FIXME:KG: Original was just volume=102; I assume this is intended
expression = 127;
volumeMult = 0;
volumesetting.leftvol = 32767;
volumesetting.rightvol = 32767;
bend = 0.0f;
@ -86,9 +86,12 @@ Part::Part(Synth *useSynth, unsigned int usePartNum) {
}
void Part::setHoldPedal(bool pedalval) {
if (holdpedal && !pedalval)
if (holdpedal && !pedalval) {
holdpedal = false;
stopPedalHold();
holdpedal = pedalval;
} else {
holdpedal = pedalval;
}
}
void RhythmPart::setBend(unsigned int midiBend) {
@ -130,20 +133,20 @@ void Part::setModulation(unsigned int midiModulation) {
}
void RhythmPart::refresh() {
updateVolume();
// (Re-)cache all the mapped timbres ahead of time
for (unsigned int drumNum = 0; drumNum < 64; drumNum++) {
for (unsigned int drumNum = 0; drumNum < synth->controlROMMap->rhythmSettingsCount; drumNum++) {
int drumTimbreNum = rhythmTemp[drumNum].timbre;
if (drumTimbreNum >= 94)
if (drumTimbreNum >= 127) // 94 on MT-32
continue;
Bit16s pan = rhythmTemp[drumNum].panpot; // They use R-L 0-14...
// FIXME:KG: Panning cache should be backed up to partials using it, too
// FIXME:KG: If I don't have left/right mixed up here, it's pure luck
if (pan < 7) {
drumPan[drumNum].leftvol = 32767;
drumPan[drumNum].rightvol = pan * 4681;
} else {
drumPan[drumNum].leftvol = pan * 4681;
drumPan[drumNum].rightvol = 32767;
drumPan[drumNum].leftvol = (14 - pan) * 4681;
} else {
drumPan[drumNum].rightvol = (14 - pan) * 4681;
drumPan[drumNum].leftvol = 32767;
}
PatchCache *cache = drumCache[drumNum];
backupCacheToPartials(cache);
@ -159,6 +162,7 @@ void RhythmPart::refresh() {
}
void Part::refresh() {
updateVolume();
backupCacheToPartials(patchCache);
for (int t = 0; t < 4; t++) {
// Common parameters, stored redundantly
@ -171,8 +175,12 @@ void Part::refresh() {
memcpy(currentInstr, timbreTemp->common.name, 10);
}
const char *Part::getCurrentInstr() const {
return &currentInstr[0];
}
void RhythmPart::refreshTimbre(unsigned int absTimbreNum) {
for (int m = 0; m < 64; m++) {
for (int m = 0; m < 85; m++) {
if (rhythmTemp[m].timbre == absTimbreNum - 128)
drumCache[m][0].dirty = true;
}
@ -225,12 +233,16 @@ void Part::setPatch(const PatchParam *patch) {
patchTemp->patch = *patch;
}
void RhythmPart::setTimbre(TimbreParam *timbre) {
synth->printDebug("%s: Attempted to call setTimbre() - doesn't make sense for rhythm", name);
}
void Part::setTimbre(TimbreParam *timbre) {
*timbreTemp = *timbre;
}
unsigned int RhythmPart::getAbsTimbreNum() const {
synth->printDebug("%s: Attempted to call getAbsTimbreNum() - doesn't make sense for rhythm");
synth->printDebug("%s: Attempted to call getAbsTimbreNum() - doesn't make sense for rhythm", name);
return 0;
}
@ -245,16 +257,10 @@ void RhythmPart::setProgram(unsigned int patchNum) {
void Part::setProgram(unsigned int patchNum) {
setPatch(&synth->mt32ram.patches[patchNum]);
setTimbre(&synth->mt32ram.timbres[getAbsTimbreNum()].timbre);
#if 0
// Immediately stop all partials on this part (this is apparently *not* the correct behaviour)
for (int m = 0; m < MT32EMU_MAX_POLY; m++) {
AbortPoly(poly);
}
#endif
refresh();
allStop(); //FIXME:KG: Is this correct?
allSoundOff(); //FIXME:KG: Is this correct?
}
void Part::backupCacheToPartials(PatchCache cache[4]) {
@ -336,29 +342,16 @@ void Part::cacheTimbre(PatchCache cache[4], const TimbreParam *timbre) {
// Calculate and cache TVA envelope stuff
cache[t].ampEnv = timbre->partial[t].tva;
for (int i = 0; i < 4; i++)
cache[t].ampEnv.envlevel[i] = (char)((float)cache[t].ampEnv.envlevel[i] * 1.27f);
cache[t].ampEnv.level = (char)((float)cache[t].ampEnv.level * 1.27f);
float tvelo = ((float)timbre->partial[t].tva.velosens / 100.0f);
float velo = fabs(tvelo-0.5f) * 2.0f;
velo *= 63.0f;
cache[t].ampEnv.velosens = (char)velo;
if (tvelo<0.5f)
cache[t].ampenvdir = 1;
else
cache[t].ampenvdir = 0;
cache[t].ampbias[0] = fixBiaslevel(cache[t].ampEnv.biaspoint1, &cache[t].ampdir[0]);
cache[t].ampblevel[0] = 12 - cache[t].ampEnv.biaslevel1;
cache[t].ampbias[1] = fixBiaslevel(cache[t].ampEnv.biaspoint2, &cache[t].ampdir[1]);
cache[t].ampblevel[1] = 12 - cache[t].ampEnv.biaslevel2;
cache[t].ampdepth = cache[t].ampEnv.envvkf * cache[t].ampEnv.envvkf;
cache[t].ampsustain = cache[t].ampEnv.envlevel[3];
cache[t].amplevel = cache[t].ampEnv.level;
// Calculate and cache filter stuff
cache[t].filtEnv = timbre->partial[t].tvf;
cache[t].tvfdepth = cache[t].filtEnv.envdkf;
cache[t].filtkeyfollow = fixKeyfollow(cache[t].filtEnv.keyfollow);
cache[t].filtEnv.envdepth = (char)((float)cache[t].filtEnv.envdepth * 1.27);
cache[t].tvfbias = fixBiaslevel(cache[t].filtEnv.biaspoint, &cache[t].tvfdir);
@ -367,7 +360,7 @@ void Part::cacheTimbre(PatchCache cache[4], const TimbreParam *timbre) {
// Calculate and cache LFO stuff
cache[t].lfodepth = timbre->partial[t].lfo.depth;
cache[t].lfoperiod = lfotable[(int)timbre->partial[t].lfo.rate];
cache[t].lfoperiod = synth->tables.lfoPeriod[(int)timbre->partial[t].lfo.rate];
cache[t].lforate = timbre->partial[t].lfo.rate;
cache[t].modsense = timbre->partial[t].lfo.modsense;
}
@ -391,8 +384,25 @@ const char *Part::getName() const {
return name;
}
void Part::setVolume(int vol) {
volume = voltable[vol];
void Part::updateVolume() {
volumeMult = synth->tables.volumeMult[patchTemp->outlevel * expression / 127];
}
int Part::getVolume() const {
// FIXME: Use the mappings for this in the control ROM
return patchTemp->outlevel * 127 / 100;
}
void Part::setVolume(int midiVolume) {
// FIXME: Use the mappings for this in the control ROM
patchTemp->outlevel = (Bit8u)(midiVolume * 100 / 127);
updateVolume();
synth->printDebug("%s (%s): Set volume to %d", name, currentInstr, midiVolume);
}
void Part::setExpression(int midiExpression) {
expression = midiExpression;
updateVolume();
}
void RhythmPart::setPan(unsigned int midiPan)
@ -404,27 +414,30 @@ void RhythmPart::setPan(unsigned int midiPan)
void Part::setPan(unsigned int midiPan) {
// FIXME:KG: Tweaked this a bit so that we have a left 100%, centre and right 100%
// (But this makes the range somewhat skewed)
// Check against the real thing
// NOTE: Panning is inverted compared to GM.
if (midiPan < 64) {
volumesetting.leftvol = 32767;
volumesetting.rightvol = (Bit16s)(midiPan * 512);
volumesetting.leftvol = (Bit16s)(midiPan * 512);
volumesetting.rightvol = 32767;
} else if (midiPan == 64) {
volumesetting.leftvol = 32767;
volumesetting.rightvol = 32767;
} else {
volumesetting.rightvol = 32767;
volumesetting.leftvol = (Bit16s)((127 - midiPan) * 520);
volumesetting.rightvol = (Bit16s)((127 - midiPan) * 520);
volumesetting.leftvol = 32767;
}
patchTemp->panpot = (Bit8u)(midiPan * 14 / 127);
//synth->printDebug("%s (%s): Set pan to %d", name, currentInstr, panpot);
}
void RhythmPart::playNote(unsigned int key, int vel) {
if (key < 24 || key > 87) {
if (key < 24 || key > 108)/*> 87 on MT-32)*/ {
synth->printDebug("%s: Attempted to play invalid key %d", name, key);
return;
}
int drumNum = key - 24;
int drumTimbreNum = rhythmTemp[drumNum].timbre;
if (drumTimbreNum >= 94) {
if (drumTimbreNum >= 127) { // 94 on MT-32
synth->printDebug("%s: Attempted to play unmapped key %d", name, key);
return;
}
@ -432,7 +445,7 @@ void RhythmPart::playNote(unsigned int key, int vel) {
TimbreParam *timbre = &synth->mt32ram.timbres[absTimbreNum].timbre;
memcpy(currentInstr, timbre->common.name, 10);
#if MT32EMU_MONITOR_INSTRUMENTS == 1
synth->printDebug("%s (%s): starting poly (drum %d, timbre %d) - Vel %d Key %d Vol %d", name, currentInstr, drumNum, absTimbreNum, vel, key, volume);
synth->printDebug("%s (%s): starting poly (drum %d, timbre %d) - Vel %d Key %d", name, currentInstr, drumNum, absTimbreNum, vel, key);
#endif
if (drumCache[drumNum][0].dirty) {
cacheTimbre(drumCache[drumNum], timbre);
@ -462,7 +475,7 @@ void Part::playNote(unsigned int key, int vel) {
}
}
#if MT32EMU_MONITOR_INSTRUMENTS == 1
synth->printDebug("%s (%s): starting poly - Vel %d Key %d Vol %d", name, currentInstr, vel, key, volume);
synth->printDebug("%s (%s): starting poly - Vel %d Key %d", name, currentInstr, vel, key);
#endif
if (patchCache[0].dirty) {
cacheTimbre(patchCache, timbreTemp);
@ -515,7 +528,7 @@ void Part::playPoly(const PatchCache cache[4], unsigned int key, int freqNum, in
synth->printDebug("%s (%s): No partials to play for this instrument", name, this->currentInstr);
tpoly->sustain = cache[0].sustain;
tpoly->volumeptr = &volume;
tpoly->volumeptr = &volumeMult;
for (int x = 0; x < 4; x++) {
if (tpoly->partials[x] != NULL) {
@ -540,7 +553,23 @@ static void startDecayPoly(dpoly *tpoly) {
tpoly->isPlaying = false;
}
void Part::allStop() {
void Part::allNotesOff() {
// Note: Unchecked on real MT-32, but the MIDI specification states that all notes off (0x7B)
// should treat the hold pedal as usual.
// All *sound* off (0x78) should stop notes immediately regardless of the hold pedal.
// The latter controller is not implemented on the MT-32 (according to the docs).
for (int q = 0; q < MT32EMU_MAX_POLY; q++) {
dpoly *tpoly = &polyTable[q];
if (tpoly->isPlaying) {
if (holdpedal)
tpoly->pedalhold = true;
else if (tpoly->sustain)
startDecayPoly(tpoly);
}
}
}
void Part::allSoundOff() {
for (int q = 0; q < MT32EMU_MAX_POLY; q++) {
dpoly *tpoly = &polyTable[q];
if (tpoly->isPlaying) {

26
sound/softsynth/mt32/part.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -57,7 +57,10 @@ protected:
Synth *synth;
char name[8]; // "Part 1".."Part 8", "Rhythm"
char currentInstr[11];
Bit32u volume;
int expression;
Bit32u volumeMult;
void updateVolume();
void backupCacheToPartials(PatchCache cache[4]);
void cacheTimbre(PatchCache cache[4], const TimbreParam *timbre);
void playPoly(const PatchCache cache[4], unsigned int key, int freqNum, int vel);
@ -67,18 +70,22 @@ public:
Part(Synth *synth, unsigned int usePartNum);
virtual void playNote(unsigned int key, int vel);
void stopNote(unsigned int key);
void allStop();
void setVolume(int vol);
void allNotesOff();
void allSoundOff();
int getVolume() const;
void setVolume(int midiVolume);
void setExpression(int midiExpression);
virtual void setPan(unsigned int midiPan);
virtual void setBend(unsigned int midiBend);
virtual void setModulation(unsigned int midiModulation);
virtual void setProgram(unsigned int patchNum);
virtual void setProgram(unsigned int midiProgram);
void setHoldPedal(bool pedalval);
void stopPedalHold();
virtual void refresh();
virtual void refreshTimbre(unsigned int absTimbreNum);
void setTimbre(TimbreParam *timbre);
virtual void setTimbre(TimbreParam *timbre);
virtual unsigned int getAbsTimbreNum() const;
const char *getCurrentInstr() const;
};
class RhythmPart: public Part {
@ -86,12 +93,13 @@ class RhythmPart: public Part {
const MemParams::RhythmTemp *rhythmTemp;
// This caches the timbres/settings in use by the rhythm part
PatchCache drumCache[64][4];
StereoVolume drumPan[64];
PatchCache drumCache[85][4];
StereoVolume drumPan[85];
public:
RhythmPart(Synth *synth, unsigned int usePartNum);
void refreshTimbre(unsigned int timbreNum);
void refresh();
void refreshTimbre(unsigned int timbreNum);
void setTimbre(TimbreParam *timbre);
void playNote(unsigned int key, int vel);
unsigned int getAbsTimbreNum() const;
void setPan(unsigned int midiPan);

325
sound/softsynth/mt32/partial.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -50,10 +50,11 @@ Partial::~Partial() {
for (int i = 0; i < 3; i++) {
delete[] noteLookupStorage.waveforms[i];
}
delete[] noteLookupStorage.wavTable;
#endif
}
int Partial::getOwnerPart() {
int Partial::getOwnerPart() const {
return ownerPart;
}
@ -61,6 +62,10 @@ bool Partial::isActive() {
return ownerPart > -1;
}
const dpoly *Partial::getDpoly() const {
return this->poly;
}
void Partial::activate(int part) {
// This just marks the partial as being assigned to a part
ownerPart = part;
@ -119,10 +124,18 @@ void Partial::initKeyFollow(int key) {
int keyfollow = ((key - MIDDLEC) * patchCache->filtkeyfollow) / 4096;
if (keyfollow > 108)
keyfollow = 108;
if (keyfollow < -108)
else if (keyfollow < -108)
keyfollow = -108;
filtVal = keytable[keyfollow + 108];
realVal = keytable[(key - MIDDLEC) + 108];
filtVal = synth->tables.tvfKeyfollowMult[keyfollow + 108];
realVal = synth->tables.tvfKeyfollowMult[(noteVal - MIDDLEC) + 108];
}
int Partial::getKey() const {
if (poly == NULL) {
return -1;
} else {
return poly->key;
}
}
void Partial::startPartial(dpoly *usePoly, const PatchCache *useCache, Partial *pairPartial) {
@ -138,13 +151,27 @@ void Partial::startPartial(dpoly *usePoly, const PatchCache *useCache, Partial *
play = true;
initKeyFollow(poly->freqnum); // Initialises noteVal, filtVal and realVal
#if MT32EMU_ACCURATENOTES == 0
noteLookup = &noteLookups[noteVal - LOWEST_NOTE];
noteLookup = &synth->tables.noteLookups[noteVal - LOWEST_NOTE];
#else
TableInitialiser::initNote(synth, &noteLookupStorage, noteVal, (float)synth->myProp.sampleRate, synth->masterTune, synth->PCMList, NULL);
Tables::initNote(synth, &noteLookupStorage, noteVal, (float)synth->myProp.sampleRate, synth->masterTune, synth->pcmWaves, NULL);
#endif
keyLookup = &synth->tables.keyLookups[poly->freqnum - 12];
if (patchCache->PCMPartial) {
pcmNum = patchCache->pcm;
if (synth->controlROMMap->pcmCount > 128) {
// CM-32L, etc. support two "banks" of PCMs, selectable by waveform type parameter.
if (patchCache->waveform > 1) {
pcmNum += 128;
}
}
pcmWave = &synth->pcmWaves[pcmNum];
} else {
pcmWave = NULL;
}
lfoPos = 0;
pulsewidth = patchCache->pulsewidth + pwveltable[patchCache->pwsens][poly->vel];
pulsewidth = patchCache->pulsewidth + synth->tables.pwVelfollowAdd[patchCache->pwsens][poly->vel];
if (pulsewidth > 100) {
pulsewidth = 100;
} else if (pulsewidth < 0) {
@ -189,6 +216,7 @@ Bit16s *Partial::generateSamples(long length) {
// Generate samples
Bit16s *partialBuf = &myBuffer[0];
Bit32u volume = *poly->volumeptr;
while (length--) {
Bit32s envval;
Bit32s sample = 0;
@ -199,24 +227,19 @@ Bit16s *Partial::generateSamples(long length) {
deactivate();
break;
}
if (ampval > 127) {
ampval = 127;
if (ampval > 100) {
ampval = 100;
}
ampval = voltable[ampval];
int tmpvel;
if (patchCache->ampenvdir == 1)
tmpvel = 127 - poly->vel;
else
tmpvel = poly->vel;
ampval = (ampval * ampveltable[tmpvel][(int)patchCache->ampEnv.velosens]) >> 8;
ampval = synth->tables.volumeMult[ampval];
ampval = FIXEDPOINT_UMULT(ampval, synth->tables.tvaVelfollowMult[poly->vel][(int)patchCache->ampEnv.velosens], 8);
//if (envs[EnvelopeType_amp].sustaining)
ampEnvVal = ampval;
}
--envs[EnvelopeType_amp].count;
}
int lfoat = 0x1000;
unsigned int lfoShift = 0x1000;
if (pitchSustain) {
// Calculate LFO position
// LFO does not kick in completely until pitch envelope sustains
@ -225,30 +248,24 @@ Bit16s *Partial::generateSamples(long length) {
if (lfoPos >= patchCache->lfoperiod)
lfoPos = 0;
int lfoatm = FIXEDPOINT_UDIV(lfoPos, patchCache->lfoperiod, 16);
int lfoatr = sintable[lfoatm];
lfoat = lfoptable[patchCache->lfodepth][lfoatr];
int lfoatr = synth->tables.sintable[lfoatm];
lfoShift = synth->tables.lfoShift[patchCache->lfodepth][lfoatr];
}
} else {
// Calculate Pitch envelope
envval = getPitchEnvelope();
int pd = patchCache->pitchEnv.depth;
pitchEnvVal = penvtable[pd][envval];
pitchEnvVal = synth->tables.pitchEnvVal[pd][envval];
}
int delta;
// These two are only for PCM partials, obviously
PCMWaveEntry *pcmWave = NULL; // Initialise to please compiler
Bit32u pcmAddr = 0; // Initialise to please compiler
// Wrap positions or end if necessary
if (patchCache->PCMPartial) {
// PCM partial
int len;
pcmWave = &synth->PCMList[patchCache->pcm];
delta = noteLookup->wavTable[patchCache->pcm];
pcmAddr = pcmWave->addr;
len = pcmWave->len;
delta = noteLookup->wavTable[pcmNum];
int len = pcmWave->len;
if (partialOff.pcmplace >= len) {
if (pcmWave->loop) {
//partialOff.pcmplace = partialOff.pcmoffset = 0;
@ -261,21 +278,20 @@ Bit16s *Partial::generateSamples(long length) {
}
} else {
// Synthesis partial
delta = 0x10707;
partialOff.pcmplace %= (Bit16u)(noteLookup->div << 1);
delta = 0x10000;
partialOff.pcmplace %= (Bit16u)noteLookup->div2;
}
// Build delta for position of next sample
// Fix delta code
Bit64u tdelta = (Bit64u)delta;
Bit32u tdelta = delta;
#if MT32EMU_ACCURATENOTES == 0
tdelta = (tdelta * fineShift) >> 12;
tdelta = FIXEDPOINT_UMULT(tdelta, fineShift, 12);
#endif
tdelta = (tdelta * pitchEnvVal) >> 12;
tdelta = (tdelta * lfoat) >> 12;
tdelta = (tdelta * bendShift) >> 12;
tdelta = FIXEDPOINT_UMULT(tdelta, pitchEnvVal, 12);
tdelta = FIXEDPOINT_UMULT(tdelta, lfoShift, 12);
tdelta = FIXEDPOINT_UMULT(tdelta, bendShift, 12);
delta = (int)tdelta;
Bit32u volume = *poly->volumeptr;
// Get waveform - either PCM or synthesized sawtooth or square
if (ampEnvVal > 0) {
@ -283,20 +299,21 @@ Bit16s *Partial::generateSamples(long length) {
// Render PCM sample
int ra, rb, dist;
Bit32u taddr;
Bit32u pcmAddr = pcmWave->addr;
if (delta < 0x10000) {
// Linear sound interpolation
taddr = pcmAddr + partialOff.pcmplace;
ra = synth->romfile[taddr];
ra = synth->pcmROMData[taddr];
taddr++;
if (taddr == pcmAddr + pcmWave->len) {
// Past end of PCM
if (pcmWave->loop) {
rb = synth->romfile[pcmAddr];
rb = synth->pcmROMData[pcmAddr];
} else {
rb = 0;
}
} else {
rb = synth->romfile[taddr];
rb = synth->pcmROMData[taddr];
}
dist = rb - ra;
sample = (ra + ((dist * (Bit32s)(partialOff.pcmoffset >> 8)) >> 8));
@ -306,7 +323,7 @@ Bit16s *Partial::generateSamples(long length) {
// a point. This is too slow. The following approximates this as fast as possible
int idelta = delta >> 16;
taddr = pcmAddr + partialOff.pcmplace;
ra = synth->romfile[taddr++];
ra = synth->pcmROMData[taddr++];
for (int ix = 0; ix < idelta - 1; ix++) {
if (taddr == pcmAddr + pcmWave->len) {
// Past end of PCM
@ -317,38 +334,31 @@ Bit16s *Partial::generateSamples(long length) {
break;
}
}
ra += synth->romfile[taddr++];
ra += synth->pcmROMData[taddr++];
}
sample = ra / idelta;
}
} else {
// Render synthesised sample
Bit32u div = noteLookup->div;
int wf = patchCache->waveform;
int toff = partialOff.pcmplace;
int minorplace = partialOff.pcmoffset >> 14;
Bit32s filterInput;
Bit32s filtval = getFiltEnvelope();
//synth->printDebug("Filtval: %d", filtval);
if (wf==0) {
if ((patchCache->waveform & 1) == 0) {
// Square waveform. Made by combining two pregenerated bandlimited
// sawtooth waveforms
// Pulse width is not yet correct
if (div == 0) {
synth->printDebug("ERROR: div=0 generating square wave, this should never happen!");
div = 1;
}
Bit32u ofsA = toff % div;
Bit32u ofsB = toff + FIXEDPOINT_UMULT(div, pulsetable[pulsewidth], 8);
ofsB = ofsB % div;
Bit16s pa = noteLookup->waveforms[0][(ofsA << 2) + minorplace];
Bit16s pb = noteLookup->waveforms[0][(ofsB << 2) + minorplace];
sample = (pa - pb) * 4;
Bit32u ofsA = ((toff << 2) + minorplace) % noteLookup->waveformSize[0];
int width = FIXEDPOINT_UMULT(noteLookup->div2, synth->tables.pwFactor[pulsewidth], 7);
Bit32u ofsB = (ofsA + width) % noteLookup->waveformSize[0];
Bit16s pa = noteLookup->waveforms[0][ofsA];
Bit16s pb = noteLookup->waveforms[0][ofsB];
filterInput = pa - pb;
// Non-bandlimited squarewave
/*
ofs = ((div << 1) * pulsetable[patchCache->pulsewidth]) >> 8;
ofs = FIXEDPOINT_UMULT(noteLookup->div2, synth->tables.pwFactor[patchCache->pulsewidth], 8);
if (toff < ofs)
sample = 1 * WGAMP;
else
@ -360,32 +370,38 @@ Bit16s *Partial::generateSamples(long length) {
// square wave and multiplies it by a full cosine
int waveoff = (toff << 2) + minorplace;
if (toff < noteLookup->sawTable[pulsewidth])
sample = noteLookup->waveforms[1][waveoff % noteLookup->waveformSize[1]];
filterInput = noteLookup->waveforms[1][waveoff % noteLookup->waveformSize[1]];
else
sample = noteLookup->waveforms[2][waveoff % noteLookup->waveformSize[2]];
sample = sample * 4;
filterInput = noteLookup->waveforms[2][waveoff % noteLookup->waveformSize[2]];
// This is the correct way
// Seems slow to me (though bandlimited) -- doesn't seem to
// sound any better though
/*
//int pw = (patchCache->pulsewidth * pulsemod[filtval]) >> 8;
Bit32u ofs = toff % div;
Bit32u ofs = toff % (noteLookup->div2 >> 1);
Bit32u ofs3 = toff + FIXEDPOINT_UMULT(div, pulsetable[patchCache->pulsewidth], 8);
ofs3 = ofs3 % div;
Bit32u ofs3 = toff + FIXEDPOINT_UMULT(noteLookup->div2, synth->tables.pwFactor[patchCache->pulsewidth], 9);
ofs3 = ofs3 % (noteLookup->div2 >> 1);
pa = noteLookup->waveforms[0][ofs];
pb = noteLookup->waveforms[0][ofs3];
sample = ((pa - pb) * noteLookup->waveforms[2][toff]) / WGAMP;
sample = sample *4;
sample = ((pa - pb) * noteLookup->waveforms[2][toff]) / 2;
*/
}
//Very exact filter
if (filtval > ((FILTERGRAN * 15) / 16))
filtval = ((FILTERGRAN * 15) / 16);
sample = (Bit32s)floor((synth->iirFilter)((float)sample, &history[0], filtcoeff[filtval][(int)patchCache->filtEnv.resonance], patchCache->filtEnv.resonance));
sample = (Bit32s)(floorf((synth->iirFilter)((float)filterInput, &history[0], synth->tables.filtCoeff[filtval][(int)patchCache->filtEnv.resonance])) / synth->tables.resonanceFactor[patchCache->filtEnv.resonance]);
if (sample < -32768) {
synth->printDebug("Overdriven amplitude for %d: %d:=%d < -32768", patchCache->waveform, filterInput, sample);
sample = -32768;
}
else if (sample > 32767) {
synth->printDebug("Overdriven amplitude for %d: %d:=%d > 32767", patchCache->waveform, filterInput, sample);
sample = 32767;
}
}
}
@ -553,7 +569,7 @@ bool Partial::produceOutput(Bit16s *partialBuf, long length) {
}
} else if (useNoisePair) {
// Generate noise for pairless ring mix
pairBuf = smallnoise;
pairBuf = synth->tables.noiseBuf;
}
Bit16s *myBuf = generateSamples(length);
@ -561,7 +577,7 @@ bool Partial::produceOutput(Bit16s *partialBuf, long length) {
if (myBuf == NULL && pairBuf == NULL)
return false;
Bit16s * p1buf, * p2buf;
Bit16s *p1buf, *p2buf;
if (structurePosition == 0 || pairBuf == NULL) {
p1buf = myBuf;
@ -574,31 +590,31 @@ bool Partial::produceOutput(Bit16s *partialBuf, long length) {
//synth->printDebug("mixType: %d", mixType);
Bit16s *mixedBuf;
switch(mixType) {
case 0:
// Standard sound mix
mixedBuf = mixBuffers(p1buf, p2buf, length);
break;
switch (mixType) {
case 0:
// Standard sound mix
mixedBuf = mixBuffers(p1buf, p2buf, length);
break;
case 1:
// Ring modulation with sound mix
mixedBuf = mixBuffersRingMix(p1buf, p2buf, length);
break;
case 1:
// Ring modulation with sound mix
mixedBuf = mixBuffersRingMix(p1buf, p2buf, length);
break;
case 2:
// Ring modulation alone
mixedBuf = mixBuffersRing(p1buf, p2buf, length);
break;
case 2:
// Ring modulation alone
mixedBuf = mixBuffersRing(p1buf, p2buf, length);
break;
case 3:
// Stereo mixing. One partial to one speaker channel, one to another.
// FIXME:KG: Surely we should be multiplying by the left/right volumes here?
mixBuffersStereo(p1buf, p2buf, partialBuf, length);
return true;
case 3:
// Stereo mixing. One partial to one speaker channel, one to another.
// FIXME:KG: Surely we should be multiplying by the left/right volumes here?
mixBuffersStereo(p1buf, p2buf, partialBuf, length);
return true;
default:
mixedBuf = mixBuffers(p1buf, p2buf, length);
break;
default:
mixedBuf = mixBuffers(p1buf, p2buf, length);
break;
}
if (mixedBuf == NULL)
@ -626,13 +642,10 @@ bool Partial::produceOutput(Bit16s *partialBuf, long length) {
Bit32s Partial::getFiltEnvelope() {
int reshigh;
int cutoff,depth,keyfollow, realfollow;
int cutoff, depth;
EnvelopeStatus *tStat = &envs[EnvelopeType_filt];
keyfollow = filtVal;
realfollow = realVal;
if (tStat->decaying) {
reshigh = tStat->envbase;
reshigh = (reshigh + ((tStat->envdist * tStat->envpos) / tStat->envsize));
@ -653,9 +666,17 @@ Bit32s Partial::getFiltEnvelope() {
tStat->envstat++;
tStat->envpos = 0;
if (tStat->envstat == 3) {
tStat->envsize = lasttimetable[(int)patchCache->filtEnv.envtime[tStat->envstat]];
tStat->envsize = synth->tables.envTime[(int)patchCache->filtEnv.envtime[tStat->envstat]];
} else {
tStat->envsize = (envtimetable[(int)patchCache->filtEnv.envtime[tStat->envstat]] * noteLookup->timekeyTable[(int)patchCache->filtEnv.envtkf]) >> 8;
Bit32u envTime = (int)patchCache->filtEnv.envtime[tStat->envstat];
if(tStat->envstat > 1) {
int envDiff = abs(patchCache->filtEnv.envlevel[tStat->envstat] - patchCache->filtEnv.envlevel[tStat->envstat - 1]);
if(envTime > synth->tables.envDeltaMaxTime[envDiff]) {
envTime = synth->tables.envDeltaMaxTime[envDiff];
}
}
tStat->envsize = (synth->tables.envTime[envTime] * keyLookup->envTimeMult[(int)patchCache->filtEnv.envtkf]) >> 8;
}
tStat->envsize++;
@ -676,48 +697,52 @@ Bit32s Partial::getFiltEnvelope() {
depth = patchCache->filtEnv.envdepth;
//int sensedep = (depth * 127-patchCache->filtEnv.envsense) >> 7;
depth = (depth * filveltable[poly->vel][(int)patchCache->filtEnv.envsense]) >> 8;
depth = FIXEDPOINT_UMULT(depth, synth->tables.tvfVelfollowMult[poly->vel][(int)patchCache->filtEnv.envsense], 8);
int bias = patchCache->tvfbias;
int dist;
if (bias!=0) {
if (bias != 0) {
//FIXME:KG: Is this really based on pitch (as now), or key pressed?
//synth->printDebug("Cutoff before %d", cutoff);
if (patchCache->tvfdir == 0) {
if (noteVal < bias) {
dist = bias - noteVal;
cutoff = (cutoff * fbiastable[patchCache->tvfblevel][dist]) >> 8;
cutoff = FIXEDPOINT_UMULT(cutoff, synth->tables.tvfBiasMult[patchCache->tvfblevel][dist], 8);
}
} else {
// > Bias
if (noteVal > bias) {
dist = noteVal - bias;
cutoff = (cutoff * fbiastable[patchCache->tvfblevel][dist]) >> 8;
cutoff = FIXEDPOINT_UMULT(cutoff, synth->tables.tvfBiasMult[patchCache->tvfblevel][dist], 8);
}
}
//synth->printDebug("Cutoff after %d", cutoff);
}
depth = (depth * noteLookup->fildepTable[patchCache->tvfdepth]) >> 8;
depth = (depth * keyLookup->envDepthMult[patchCache->filtEnv.envdkf]) >> 8;
reshigh = (reshigh * depth) >> 7;
Bit32s tmp;
cutoff *= keyfollow;
cutoff /= realfollow;
cutoff *= filtVal;
cutoff /= realVal; //FIXME:KG: With filter keyfollow 0, this makes no sense. What's correct?
reshigh *= keyfollow;
reshigh /= realfollow;
reshigh *= filtVal;
reshigh /= realVal; //FIXME:KG: As above for cutoff
if (cutoff>100)
if (patchCache->waveform == 1) {
reshigh = (reshigh * 65) / 100;
}
if (cutoff > 100)
cutoff = 100;
else if (cutoff<0)
else if (cutoff < 0)
cutoff = 0;
if (reshigh>100)
if (reshigh > 100)
reshigh = 100;
else if (reshigh<0)
else if (reshigh < 0)
reshigh = 0;
tmp = noteLookup->nfiltTable[cutoff][reshigh];
//tmp *= keyfollow;
@ -743,7 +768,7 @@ Bit32u Partial::getAmpEnvelope() {
if (tStat->decaying) {
tc = tStat->envbase;
tc = (tc + ((tStat->envdist * tStat->envpos) / tStat->envsize));
tc += (tStat->envdist * tStat->envpos) / tStat->envsize;
if (tc < 0)
tc = 0;
if ((tStat->envpos >= tStat->envsize) || (tc == 0)) {
@ -752,47 +777,56 @@ Bit32u Partial::getAmpEnvelope() {
return 0;
}
} else {
if ((tStat->envstat==-1) || (tStat->envpos >= tStat->envsize)) {
if (tStat->envstat==-1)
if ((tStat->envstat == -1) || (tStat->envpos >= tStat->envsize)) {
if (tStat->envstat == -1)
tStat->envbase = 0;
else
tStat->envbase = patchCache->ampEnv.envlevel[tStat->envstat];
tStat->envstat++;
tStat->envpos = 0;
switch(tStat->envstat) {
case 0:
//Spot for velocity time follow
//Only used for first attack
tStat->envsize = (envtimetable[(int)patchCache->ampEnv.envtime[tStat->envstat]] * veltkeytable[(int)patchCache->ampEnv.envvkf][poly->vel]) >> 8;
if (tStat->envstat == 4) {
//synth->printDebug("Envstat %d, size %d", tStat->envstat, tStat->envsize);
break;
case 3:
// Final attack envelope uses same time table as the decay
//tStat->envsize = decaytimetable[patchCache->ampEnv.envtime[tStat->envstat]];
tStat->envsize = lasttimetable[(int)patchCache->ampEnv.envtime[tStat->envstat]];
//synth->printDebug("Envstat %d, size %d", tStat->envstat, tStat->envsize);
break;
case 4:
//synth->printDebug("Envstat %d, size %d", tStat->envstat, tStat->envsize);
tc = patchCache->ampsustain;
tc = patchCache->ampEnv.envlevel[3];
if (!poly->sustain)
startDecay(EnvelopeType_amp, tc);
else
tStat->sustaining = true;
goto PastCalc;
default:
//Spot for timekey follow
//Only used in subsquent envelope parameters, including the decay
tStat->envsize = (envtimetable[(int)patchCache->ampEnv.envtime[tStat->envstat]] * noteLookup->timekeyTable[(int)patchCache->ampEnv.envtkf]) >> 8;
}
Bit8u targetLevel = patchCache->ampEnv.envlevel[tStat->envstat];
tStat->envdist = targetLevel - tStat->envbase;
Bit32u envTime = patchCache->ampEnv.envtime[tStat->envstat];
if (targetLevel == 0) {
tStat->envsize = synth->tables.envDecayTime[envTime];
} else {
int envLevelDelta = abs(tStat->envdist);
if (envTime > synth->tables.envDeltaMaxTime[envLevelDelta]) {
envTime = synth->tables.envDeltaMaxTime[envLevelDelta];
}
tStat->envsize = synth->tables.envTime[envTime];
}
// Time keyfollow is used by all sections of the envelope (confirmed on CM-32L)
tStat->envsize = FIXEDPOINT_UMULT(tStat->envsize, keyLookup->envTimeMult[(int)patchCache->ampEnv.envtkf], 8);
switch (tStat->envstat) {
case 0:
//Spot for velocity time follow
//Only used for first attack
tStat->envsize = FIXEDPOINT_UMULT(tStat->envsize, synth->tables.envTimeVelfollowMult[(int)patchCache->ampEnv.envvkf][poly->vel], 8);
//synth->printDebug("Envstat %d, size %d", tStat->envstat, tStat->envsize);
break;
case 1:
case 2:
case 3:
//synth->printDebug("Envstat %d, size %d", tStat->envstat, tStat->envsize);
break;
default:
synth->printDebug("Invalid TVA envelope number %d hit!", tStat->envstat);
break;
}
tStat->envsize++;
tStat->envdist = patchCache->ampEnv.envlevel[tStat->envstat] - tStat->envbase;
if (tStat->envdist != 0) {
tStat->counter = abs(tStat->envsize / tStat->envdist);
@ -806,7 +840,7 @@ Bit32u Partial::getAmpEnvelope() {
tc = (tc + ((tStat->envdist * tStat->envpos) / tStat->envsize));
tStat->count = tStat->counter;
PastCalc:
tc = (tc * (Bit32s)patchCache->amplevel) >> 7;
tc = (tc * (Bit32s)patchCache->ampEnv.level) / 100;
}
// Prevlevel storage is bottle neck
@ -821,13 +855,13 @@ PastCalc:
// < Bias
if (noteVal < bias) {
int dist = bias - noteVal;
tc = (tc * ampbiastable[patchCache->ampblevel[i]][dist]) >> 8;
tc = FIXEDPOINT_UMULT(tc, synth->tables.tvaBiasMult[patchCache->ampblevel[i]][dist], 8);
}
} else {
// > Bias
if (noteVal > bias) {
int dist = noteVal - bias;
tc = (tc * ampbiastable[patchCache->ampblevel[i]][dist]) >> 8;
tc = FIXEDPOINT_UMULT(tc, synth->tables.tvaBiasMult[patchCache->ampblevel[i]][dist], 8);
}
}
}
@ -863,7 +897,14 @@ Bit32s Partial::getPitchEnvelope() {
tStat->envstat++;
tStat->envbase = patchCache->pitchEnv.level[tStat->envstat];
tStat->envsize = (envtimetable[(int)patchCache->pitchEnv.time[tStat->envstat]] * noteLookup->timekeyTable[(int)patchCache->pitchEnv.timekeyfollow]) >> 8;
Bit32u envTime = patchCache->pitchEnv.time[tStat->envstat];
int envDiff = abs(patchCache->pitchEnv.level[tStat->envstat] - patchCache->pitchEnv.level[tStat->envstat + 1]);
if (envTime > synth->tables.envDeltaMaxTime[envDiff]) {
envTime = synth->tables.envDeltaMaxTime[envDiff];
}
tStat->envsize = (synth->tables.envTime[envTime] * keyLookup->envTimeMult[(int)patchCache->pitchEnv.timekeyfollow]) >> 8;
tStat->envpos = 0;
tStat->envsize++;
@ -892,17 +933,17 @@ void Partial::startDecay(EnvelopeType envnum, Bit32s startval) {
tStat->envpos = 0;
tStat->envbase = startval;
switch(envnum) {
switch (envnum) {
case EnvelopeType_amp:
tStat->envsize = (decaytimetable[(int)patchCache->ampEnv.envtime[4]] * noteLookup->timekeyTable[(int)patchCache->ampEnv.envtkf]) >> 8;
tStat->envsize = FIXEDPOINT_UMULT(synth->tables.envDecayTime[(int)patchCache->ampEnv.envtime[4]], keyLookup->envTimeMult[(int)patchCache->ampEnv.envtkf], 8);
tStat->envdist = -startval;
break;
case EnvelopeType_filt:
tStat->envsize = (decaytimetable[(int)patchCache->filtEnv.envtime[4]] * noteLookup->timekeyTable[(int)patchCache->filtEnv.envtkf]) >> 8;
tStat->envsize = FIXEDPOINT_UMULT(synth->tables.envDecayTime[(int)patchCache->filtEnv.envtime[4]], keyLookup->envTimeMult[(int)patchCache->filtEnv.envtkf], 8);
tStat->envdist = -startval;
break;
case EnvelopeType_pitch:
tStat->envsize = (decaytimetable[(int)patchCache->pitchEnv.time[3]] * noteLookup->timekeyTable[(int)patchCache->pitchEnv.timekeyfollow]) >> 8 ;
tStat->envsize = FIXEDPOINT_UMULT(synth->tables.envDecayTime[(int)patchCache->pitchEnv.time[3]], keyLookup->envTimeMult[(int)patchCache->pitchEnv.timekeyfollow], 8);
tStat->envdist = patchCache->pitchEnv.level[4] - startval;
break;
default:

16
sound/softsynth/mt32/partial.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -60,8 +60,6 @@ private:
Bit16s myBuffer[MAX_SAMPLE_OUTPUT];
bool play;
// Keyfollowed note value
#if MT32EMU_ACCURATENOTES == 1
NoteLookup noteLookupStorage;
@ -71,12 +69,15 @@ private:
int fineShift;
#endif
const NoteLookup *noteLookup; // LUTs for this noteVal
const KeyLookup *keyLookup; // LUTs for the clamped (12..108) key
// Keyfollowed filter values
int realVal;
int filtVal;
EnvelopeStatus envs[3];
// Only used for PCM partials
int pcmNum;
PCMWaveEntry *pcmWave;
int pulsewidth;
@ -109,6 +110,9 @@ private:
public:
const PatchCache *patchCache;
EnvelopeStatus envs[3];
bool play;
PatchCache cachebackup;
Partial *pair;
@ -118,7 +122,9 @@ public:
Partial(Synth *synth);
~Partial();
int getOwnerPart();
int getOwnerPart() const;
int getKey() const;
const dpoly *getDpoly() const;
bool isActive();
void activate(int part);
void deactivate(void);

8
sound/softsynth/mt32/partialManager.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -264,3 +264,9 @@ bool PartialManager::freePartials(unsigned int needed, int partNum) {
}
return needed == 0;
}
const Partial *PartialManager::getPartial(unsigned int partialNum) const {
if (partialNum > MT32EMU_MAX_PARTIALS - 1)
return NULL;
return partialTable[partialNum];
}

4
sound/softsynth/mt32/partialManager.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -35,6 +35,7 @@ private:
Bit32s partialPart[9]; // The count of partials played per part
public:
PartialManager(Synth *synth);
~PartialManager();
Partial *allocPartial(int partNum);
@ -47,6 +48,7 @@ public:
bool shouldReverb(int i);
void clearAlreadyOutputed();
void getPerPartPartialUsage(int usage[9]);
const Partial *getPartial(unsigned int partialNum) const;
};
}

34
sound/softsynth/mt32/structures.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -26,6 +26,11 @@ namespace MT32Emu {
const unsigned int MAX_SAMPLE_OUTPUT = 4096;
// MT32EMU_MEMADDR() converts from sysex-padded, MT32EMU_SYSEXMEMADDR converts to it
// Roland provides documentation using the sysex-padded addresses, so we tend to use that in code and output
#define MT32EMU_MEMADDR(x) ((((x) & 0x7f0000) >> 2) | (((x) & 0x7f00) >> 1) | ((x) & 0x7f))
#define MT32EMU_SYSEXMEMADDR(x) ((((x) & 0x1FC000) << 2) | (((x) & 0x3F80) << 1) | ((x) & 0x7f))
#ifdef _MSC_VER
#define MT32EMU_ALIGN_PACKED __declspec(align(1))
typedef unsigned __int64 Bit64u;
@ -68,7 +73,7 @@ struct TimbreParam {
Bit8u fine; // 0-100 (-50 to +50 (cents?))
Bit8u keyfollow; // 0-16 (-1,-1/2,0,1,1/8,1/4,3/8,1/2,5/8,3/4,7/8,1,5/4,3/2,2.s1,s2)
Bit8u bender; // 0,1 (ON/OFF)
Bit8u waveform; // 0-1 (SQU/SAW)
Bit8u waveform; // MT-32: 0-1 (SQU/SAW); LAPC-I: WG WAVEFORM/PCM BANK 0 - 3 (SQU/1, SAW/1, SQU/2, SAW/2)
Bit8u pcmwave; // 0-127 (1-128)
Bit8u pulsewid; // 0-100
Bit8u pwvelo; // 0-14 (-7 - +7)
@ -129,28 +134,32 @@ struct PatchParam {
} MT32EMU_ALIGN_PACKED;
struct MemParams {
// NOTE: The MT-32 documentation only specifies PatchTemp areas for parts 1-8.
// The LAPC-I documentation specified an additional area for rhythm at the end,
// where all parameters but fine tune, assign mode and output level are ignored
struct PatchTemp {
PatchParam patch;
Bit8u outlevel; // OUTPUT LEVEL 0-100
Bit8u panpot; // PANPOT 0-14 (R-L)
Bit8u dummyv[6];
} MT32EMU_ALIGN_PACKED patchSettings[8];
} MT32EMU_ALIGN_PACKED patchSettings[9];
struct RhythmTemp {
Bit8u timbre; // TIMBRE 0-94 (M1-M64,R1-30,OFF)
Bit8u outlevel; // OUTPUT LEVEL 0-100
Bit8u panpot; // PANPOT 0-14 (R-L)
Bit8u reverbSwitch; // REVERB SWITCH 0-1 (OFF,ON)
} MT32EMU_ALIGN_PACKED rhythmSettings[86]; // FIXME: Was 64, but let's support the next model...
} MT32EMU_ALIGN_PACKED rhythmSettings[85];
TimbreParam MT32EMU_ALIGN_PACKED timbreSettings[8];
PatchParam MT32EMU_ALIGN_PACKED patches[128];
// NOTE: There are only 30 timbres in the "rhythm" bank for MT-32; the additional 34 are for LAPC-I and above
struct PaddedTimbre {
TimbreParam timbre;
Bit8u padding[10];
} MT32EMU_ALIGN_PACKED timbres[64 + 64 + 64 + 30]; // Group A, Group B, Memory, Rhythm
} MT32EMU_ALIGN_PACKED timbres[64 + 64 + 64 + 64]; // Group A, Group B, Memory, Rhythm
struct SystemArea {
Bit8u masterTune; // MASTER TUNE 0-127 432.1-457.6Hz
@ -163,18 +172,6 @@ struct MemParams {
} MT32EMU_ALIGN_PACKED system;
};
struct MemBanks {
Bit8u pTemp[8][sizeof(MemParams::PatchTemp)];
Bit8u rTemp[86][sizeof(MemParams::RhythmTemp)];
Bit8u tTemp[8][sizeof(TimbreParam)];
Bit8u patchBank[128][sizeof(PatchParam)];
Bit8u timbreBank[64 + 64 + 64 + 30][sizeof(MemParams::PaddedTimbre)];
Bit8u systemBank[sizeof(MemParams::SystemArea)];
// System memory 0x100000
// Display 0x200000
// Reset 0x7F0000
};
#if defined(_MSC_VER) || defined (__MINGW32__)
#pragma pack(pop)
#else
@ -227,9 +224,7 @@ struct PatchCache {
int ampdir[2];
int ampdepth;
int ampenvdir;
int amplevel;
int tvfdepth;
bool useBender;
float benderRange; // 0.0, 1.0, .., 24.0 (semitones)
@ -238,7 +233,6 @@ struct PatchCache {
TimbreParam::partialParam::tvaParam ampEnv;
TimbreParam::partialParam::tvfParam filtEnv;
Bit32s ampsustain;
Bit32s pitchsustain;
Bit32s filtsustain;

607
sound/softsynth/mt32/synth.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -30,7 +30,15 @@ namespace MT32Emu {
const int MAX_SYSEX_SIZE = 512;
float iir_filter_normal(float input,float *hist1_ptr, float *coef_ptr, int revLevel) {
const ControlROMMap ControlROMMaps[3] = {
// ID IDc IDbytes PCMmap PCMc tmbrA tmbrAO, tmbrB tmbrBO, tmbrR trC rhythm rhyC rsrv panpot prog
{0x4010, 22, "\000 ver1.07 10 Oct, 87 ", 0x3000, 128, 0x8000, 0x0000, 0xC000, 0x4000, 0x3200, 30, 0x73fe, 85, 0x57B1, 0x57BA, 0x57CC}, // MT-32 revision 1
{0x4010, 22, "\000verX.XX 30 Sep, 88 ", 0x3000, 128, 0x8000, 0x0000, 0xC000, 0x4000, 0x3200, 30, 0x741C, 85, 0x57E5, 0x57EE, 0x5800}, // MT-32 Blue Ridge mod
{0x2205, 22, "\000CM32/LAPC1.02 891205", 0x8100, 256, 0x8000, 0x8000, 0x8080, 0x8000, 0x8500, 64, 0x8580, 85, 0x4F93, 0x4F9C, 0x4FAE} // CM-32L
// (Note that all but CM-32L ROM actually have 86 entries for rhythmTemp)
};
float iir_filter_normal(float input, float *hist1_ptr, float *coef_ptr) {
float *hist2_ptr;
float output,new_hist;
@ -60,8 +68,6 @@ float iir_filter_normal(float input,float *hist1_ptr, float *coef_ptr, int revLe
*hist2_ptr++ = *hist1_ptr;
*hist1_ptr++ = new_hist;
output *= ResonInv[revLevel];
return(output);
}
@ -79,7 +85,6 @@ Synth::Synth() {
isOpen = false;
reverbModel = NULL;
partialManager = NULL;
memset(noteLookups, 0, sizeof(noteLookups));
memset(parts, 0, sizeof(parts));
}
@ -112,7 +117,7 @@ void Synth::initReverb(Bit8u newRevMode, Bit8u newRevTime, Bit8u newRevLevel) {
delete reverbModel;
reverbModel = new revmodel();
switch(newRevMode) {
switch (newRevMode) {
case 0:
reverbModel->setroomsize(.1f);
reverbModel->setdamp(.75f);
@ -204,10 +209,21 @@ bool Synth::loadControlROM(const char *filename) {
if (file == NULL) {
return false;
}
bool rc = (file->read(controlROMData, sizeof(controlROMData)) == sizeof(controlROMData));
bool rc = (file->read(controlROMData, CONTROL_ROM_SIZE) == CONTROL_ROM_SIZE);
closeFile(file);
return rc;
if (!rc)
return rc;
// Control ROM successfully loaded, now check whether it's a known type
controlROMMap = NULL;
for (unsigned int i = 0; i < sizeof (ControlROMMaps) / sizeof (ControlROMMaps[0]); i++) {
if (memcmp(&controlROMData[ControlROMMaps[i].idPos], ControlROMMaps[i].idBytes, ControlROMMaps[i].idLen) == 0) {
controlROMMap = &ControlROMMaps[i];
return true;
}
}
return false;
}
bool Synth::loadPCMROM(const char *filename) {
@ -216,7 +232,8 @@ bool Synth::loadPCMROM(const char *filename) {
return false;
}
bool rc = true;
for (int i = 0; ; i++) {
int i;
for (i = 0; i < pcmROMSize; i++) {
Bit8u s;
if (!file->readBit8u(&s)) {
if (!file->isEOF()) {
@ -229,7 +246,7 @@ bool Synth::loadPCMROM(const char *filename) {
if (!file->isEOF()) {
rc = false;
} else {
printDebug("ROM file has an odd number of bytes! Ignoring last");
printDebug("PCM ROM file has an odd number of bytes! Ignoring last");
}
break;
}
@ -237,7 +254,6 @@ bool Synth::loadPCMROM(const char *filename) {
short e;
int bit;
int u;
int order[16] = {0, 9, 1 ,2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 8};
e = 0;
@ -259,7 +275,7 @@ bool Synth::loadPCMROM(const char *filename) {
e = (int)((float)e * (x/3200));
*/
// File is encoded in dB, convert to PCM
// File is companded (dB?), convert to linear PCM
// MINDB = -96
// MAXDB = -15
float testval;
@ -271,72 +287,95 @@ bool Synth::loadPCMROM(const char *filename) {
if (e > 0)
vol = -vol;
romfile[i] = (Bit16s)vol;
pcmROMData[i] = (Bit16s)vol;
}
if (i != pcmROMSize) {
printDebug("PCM ROM file is too short (expected %d, got %d)", pcmROMSize, i);
rc = false;
}
closeFile(file);
return rc;
}
struct ControlROMPCMStruct
{
Bit8u pos;
Bit8u len;
Bit8u pitchLSB;
Bit8u pitchMSB;
};
void Synth::initPCMList() {
ControlROMPCMStruct *tps = (ControlROMPCMStruct *)&controlROMData[0x3000];
for (int i = 0; i < 128; i++) {
bool Synth::initPCMList(Bit16u mapAddress, Bit16u count) {
ControlROMPCMStruct *tps = (ControlROMPCMStruct *)&controlROMData[mapAddress];
for (int i = 0; i < count; i++) {
int rAddr = tps[i].pos * 0x800;
int rLenExp = (tps[i].len & 0x70) >> 4;
int rLen = 0x800 << rLenExp;
bool rLoop = (tps[i].len & 0x80) != 0;
//Bit8u rFlag = tps[i].len & 0x0F;
Bit16u rTuneOffset = (tps[i].pitchMSB << 8) | tps[i].pitchLSB;
//FIXME:KG: Pick a number, any number. The one below sounded best to me in listening tests, but needs to be confirmed.
double STANDARDFREQ = 432.1;
float rTune = (float)(STANDARDFREQ * pow(2.0, (0x5000 - rTuneOffset) / 4096.0 - 9.0 / 12.0));
// The number below is confirmed to a reasonable degree of accuracy on CM-32L
double STANDARDFREQ = 442.0;
float rTune = (float)(STANDARDFREQ * pow(2.0, (0x5000 - rTuneOffset) / 4056.0 - 9.0 / 12.0));
//printDebug("%f,%d,%d", pTune, tps[i].pitchCoarse, tps[i].pitchFine);
PCMList[i].addr = rAddr;
PCMList[i].len = rLen;
PCMList[i].loop = rLoop;
PCMList[i].tune = rTune;
if (rAddr + rLen > pcmROMSize) {
printDebug("Control ROM error: Wave map entry %d points to invalid PCM address 0x%04X, length 0x%04X", i, rAddr, rLen);
return false;
}
pcmWaves[i].addr = rAddr;
pcmWaves[i].len = rLen;
pcmWaves[i].loop = rLoop;
pcmWaves[i].tune = rTune;
}
return false;
}
void Synth::initRhythmTimbre(int timbreNum, const Bit8u *mem) {
bool Synth::initRhythmTimbre(int timbreNum, const Bit8u *mem, unsigned int memLen) {
if (memLen < sizeof(TimbreParam::commonParam)) {
return false;
}
TimbreParam *timbre = &mt32ram.timbres[timbreNum].timbre;
memcpy(&timbre->common, mem, 14);
mem += 14;
unsigned int memPos = 14;
char drumname[11];
strncpy(drumname, timbre->common.name, 10);
drumname[10] = 0;
for (int t = 0; t < 4; t++) {
if (((timbre->common.pmute >> t) & 0x1) == 0x1) {
memcpy(&timbre->partial[t], mem, 58);
mem += 58;
if (memPos + 58 >= memLen) {
return false;
}
memcpy(&timbre->partial[t], mem + memPos, 58);
memPos += 58;
}
}
return true;
}
void Synth::initRhythmTimbres() {
const Bit8u *drumMap = &controlROMData[0x3200];
bool Synth::initRhythmTimbres(Bit16u mapAddress, Bit16u count) {
const Bit8u *drumMap = &controlROMData[mapAddress];
int timbreNum = 192;
for (Bit16u i = 0; i < 60; i += 2) {
for (Bit16u i = 0; i < count * 2; i += 2) {
Bit16u address = (drumMap[i + 1] << 8) | drumMap[i];
initRhythmTimbre(timbreNum++, &controlROMData[address]);
/*
// This check is nonsensical when the control ROM is the full 64KB addressable by 16-bit absolute pointers (which it is)
if (address >= CONTROL_ROM_SIZE) {
printDebug("Control ROM error: Timbre map entry 0x%04x points to invalid timbre address 0x%04x", i, address);
return false;
}
*/
if (!initRhythmTimbre(timbreNum++, &controlROMData[address], CONTROL_ROM_SIZE - address)) {
printDebug("Control ROM error: Timbre map entry 0x%04x points to invalid timbre 0x%04x", i, address);
return false;
}
}
return true;
}
void Synth::initTimbres(Bit16u mapAddress, int startTimbre) {
bool Synth::initTimbres(Bit16u mapAddress, Bit16u offset, int startTimbre) {
for (Bit16u i = mapAddress; i < mapAddress + 0x80; i += 2) {
Bit16u address = (controlROMData[i + 1] << 8) | controlROMData[i];
address = address + (mapAddress - 0x8000);
if (address + sizeof(TimbreParam) > CONTROL_ROM_SIZE) {
printDebug("Control ROM error: Timbre map entry 0x%04x points to invalid timbre address 0x%04x", i, address);
return false;
}
address = address + offset;
TimbreParam *timbre = &mt32ram.timbres[startTimbre++].timbre;
memcpy(timbre, &controlROMData[address], sizeof(TimbreParam));
}
return true;
}
bool Synth::open(SynthProperties &useProp) {
@ -351,41 +390,59 @@ bool Synth::open(SynthProperties &useProp) {
// This is to help detect bugs
memset(&mt32ram, '?', sizeof(mt32ram));
for (int i = 128; i < 192; i++) {
// If something sets a patch to point to an uninitialised memory timbre, don't play anything
mt32ram.timbres[i].timbre.common.pmute = 0;
}
printDebug("Loading Control ROM");
if (!loadControlROM("MT32_CONTROL.ROM")) {
printDebug("Init Error - Missing or invalid MT32_CONTROL.ROM");
report(ReportType_errorControlROM, &errno);
if (!loadControlROM("CM32L_CONTROL.ROM")) {
if (!loadControlROM("MT32_CONTROL.ROM")) {
printDebug("Init Error - Missing or invalid MT32_CONTROL.ROM");
report(ReportType_errorControlROM, &errno);
return false;
}
}
// 512KB PCM ROM for MT-32, etc.
// 1MB PCM ROM for CM-32L, LAPC-I, CM-64, CM-500
// Note that the size below is given in samples (16-bit), not bytes
pcmROMSize = controlROMMap->pcmCount == 256 ? 512 * 1024 : 256 * 1024;
pcmROMData = new Bit16s[pcmROMSize];
printDebug("Loading PCM ROM");
if (!loadPCMROM("CM32L_PCM.ROM")) {
if (!loadPCMROM("MT32_PCM.ROM")) {
printDebug("Init Error - Missing MT32_PCM.ROM");
report(ReportType_errorPCMROM, &errno);
return false;
}
}
printDebug("Initialising Timbre Bank A");
if (!initTimbres(controlROMMap->timbreAMap, controlROMMap->timbreAOffset, 0)) {
return false;
}
printDebug("Loading PCM ROM");
if (!loadPCMROM("MT32_PCM.ROM")) {
printDebug("Init Error - Missing MT32_PCM.ROM");
report(ReportType_errorPCMROM, &errno);
printDebug("Initialising Timbre Bank B");
if (!initTimbres(controlROMMap->timbreBMap, controlROMMap->timbreBOffset, 64)) {
return false;
}
printDebug("Initialising Timbre Bank R");
if (!initRhythmTimbres(controlROMMap->timbreRMap, controlROMMap->timbreRCount)) {
return false;
}
printDebug("Initialising Timbre Bank M");
// CM-64 seems to initialise all bytes in this bank to 0.
memset(&mt32ram.timbres[128], 0, sizeof (mt32ram.timbres[128]) * 64);
partialManager = new PartialManager(this);
pcmWaves = new PCMWaveEntry[controlROMMap->pcmCount];
printDebug("Initialising PCM List");
initPCMList();
printDebug("Initialising Timbre Bank A");
initTimbres(0x8000, 0);
printDebug("Initialising Timbre Bank B");
initTimbres(0xC000, 64);
printDebug("Initialising Timbre Bank R");
initRhythmTimbres();
initPCMList(controlROMMap->pcmTable, controlROMMap->pcmCount);
printDebug("Initialising Rhythm Temp");
memcpy(mt32ram.rhythmSettings, &controlROMData[0x741C], 344);
memcpy(mt32ram.rhythmSettings, &controlROMData[controlROMMap->rhythmSettings], controlROMMap->rhythmSettingsCount * 4);
printDebug("Initialising Patches");
for (Bit8u i = 0; i < 128; i++) {
@ -401,16 +458,12 @@ bool Synth::open(SynthProperties &useProp) {
}
printDebug("Initialising System");
//FIXME: Confirm that these are all correct
// The MT-32 manual claims that "Standard pitch" is 442Hz.
// I assume they mean this is the MT-32 default pitch, and not concert pitch,
// since the latter has been internationally defined as 440Hz for decades.
// Regardless, I'm setting the default masterTune to 440Hz
mt32ram.system.masterTune = 0x40;
mt32ram.system.reverbMode = 0;
mt32ram.system.reverbTime = 5;
mt32ram.system.reverbLevel = 3;
memcpy(mt32ram.system.reserveSettings, &controlROMData[0x57E5], 9);
mt32ram.system.masterTune = 0x40; // Confirmed on CM-64 as 0x4A, but SCUMM games use 0x40 and we don't want to initialise twice
mt32ram.system.reverbMode = 0; // Confirmed
mt32ram.system.reverbTime = 5; // Confirmed
mt32ram.system.reverbLevel = 3; // Confirmed
memcpy(mt32ram.system.reserveSettings, &controlROMData[controlROMMap->reserveSettings], 9); // Confirmed
for (Bit8u i = 0; i < 9; i++) {
// This is the default: {1, 2, 3, 4, 5, 6, 7, 8, 9}
// An alternative configuration can be selected by holding "Master Volume"
@ -418,16 +471,16 @@ bool Synth::open(SynthProperties &useProp) {
// The channel assignment is then {0, 1, 2, 3, 4, 5, 6, 7, 9}
mt32ram.system.chanAssign[i] = i + 1;
}
mt32ram.system.masterVol = 100;
mt32ram.system.masterVol = 100; // Confirmed
if (!refreshSystem())
return false;
for (int i = 0; i < 8; i++) {
mt32ram.patchSettings[i].outlevel = 80;
mt32ram.patchSettings[i].panpot = controlROMData[0x5800 + i];
mt32ram.patchSettings[i].panpot = controlROMData[controlROMMap->panSettings + i];
memset(mt32ram.patchSettings[i].dummyv, 0, sizeof(mt32ram.patchSettings[i].dummyv));
parts[i] = new Part(this, i);
parts[i]->setProgram(controlROMData[0x57EE + i]);
parts[i]->setProgram(controlROMData[controlROMMap->programSettings + i]);
}
parts[8] = new RhythmPart(this, 8);
@ -467,7 +520,7 @@ void Synth::close(void) {
if (!isOpen)
return;
TableInitialiser::freeNotes();
tables.freeNotes();
if (partialManager != NULL) {
delete partialManager;
partialManager = NULL;
@ -488,14 +541,18 @@ void Synth::close(void) {
delete myProp.baseDir;
myProp.baseDir = NULL;
}
delete[] pcmWaves;
delete[] pcmROMData;
isOpen = false;
}
void Synth::playMsg(Bit32u msg) {
unsigned char code = (unsigned char)((msg & 0xf0) >> 4);
unsigned char chan = (unsigned char)(msg & 0xf);
unsigned char note = (unsigned char)((msg & 0xff00) >> 8);
unsigned char velocity = (unsigned char)((msg & 0xff0000) >> 16);
// FIXME: Implement active sensing
unsigned char code = (unsigned char)((msg & 0x0000F0) >> 4);
unsigned char chan = (unsigned char) (msg & 0x00000F);
unsigned char note = (unsigned char)((msg & 0x00FF00) >> 8);
unsigned char velocity = (unsigned char)((msg & 0xFF0000) >> 16);
isEnabled = true;
//printDebug("Playing chan %d, code 0x%01x note: 0x%02x", chan, code, note);
@ -534,7 +591,6 @@ void Synth::playMsgOnPart(unsigned char part, unsigned char code, unsigned char
parts[part]->setModulation(velocity);
break;
case 0x07: // Set volume
//if (part!=3) return;
//printDebug("Volume set: %d", velocity);
parts[part]->setVolume(velocity);
break;
@ -544,20 +600,26 @@ void Synth::playMsgOnPart(unsigned char part, unsigned char code, unsigned char
break;
case 0x0B:
//printDebug("Expression set: %d", velocity);
parts[part]->setVolume(velocity);
parts[part]->setExpression(velocity);
break;
case 0x40: // Hold pedal
case 0x40: // Hold (sustain) pedal
//printDebug("Hold pedal set: %d", velocity);
parts[part]->setHoldPedal(velocity>=64);
break;
case 0x79: // Reset all controllers
printDebug("Reset all controllers (NYI)");
//printDebug("Reset all controllers");
//FIXME: Check for accuracy against real thing
parts[part]->setVolume(100);
parts[part]->setExpression(127);
parts[part]->setPan(64);
parts[part]->setBend(0x2000);
parts[part]->setHoldPedal(false);
break;
case 0x7B: // All notes off
//printDebug("All notes off");
parts[part]->allStop();
parts[part]->allNotesOff();
break;
default:
@ -583,53 +645,49 @@ void Synth::playMsgOnPart(unsigned char part, unsigned char code, unsigned char
//midiOutShortMsg(m_out, msg);
}
void Synth::playSysex(const Bit8u * sysex,Bit32u len) {
if (len < 3) {
void Synth::playSysex(const Bit8u *sysex, Bit32u len) {
if (len < 2) {
printDebug("playSysex: Message is too short for sysex (%d bytes)", len);
}
if (sysex[0] != 0xf0) {
printDebug("playSysex: Message lacks start-of-sysex (0xf0)");
if (sysex[0] != 0xF0) {
printDebug("playSysex: Message lacks start-of-sysex (0xF0)");
return;
}
if (sysex[len - 1] != 0xf7) {
// Due to some programs (e.g. Java) sending buffers with junk at the end, we have to go through and find the end marker rather than relying on len.
Bit32u endPos;
for (endPos = 1; endPos < len; endPos++)
{
if (sysex[endPos] == 0xF7)
break;
}
if (endPos == len) {
printDebug("playSysex: Message lacks end-of-sysex (0xf7)");
return;
}
playSysexWithoutFraming(sysex + 1, len - 2);
playSysexWithoutFraming(sysex + 1, endPos - 1);
}
void Synth::playSysexWithoutFraming(const Bit8u * sysex, Bit32u len) {
void Synth::playSysexWithoutFraming(const Bit8u *sysex, Bit32u len) {
if (len < 4) {
printDebug("playSysexWithoutFraming: Message is too short (%d bytes)!", len);
return;
}
if (sysex[0] != 0x41) {
if (sysex[0] != SYSEX_MANUFACTURER_ROLAND) {
printDebug("playSysexWithoutFraming: Header not intended for this device manufacturer: %02x %02x %02x %02x", (int)sysex[0], (int)sysex[1], (int)sysex[2], (int)sysex[3]);
return;
}
if (sysex[2] == 0x14) {
printDebug("playSysexWithoutFraming: Header is intended for Roland D-50 (not yet supported): %02x %02x %02x %02x", (int)sysex[0], (int)sysex[1], (int)sysex[2], (int)sysex[3]);
if (sysex[2] == SYSEX_MDL_D50) {
printDebug("playSysexWithoutFraming: Header is intended for model D-50 (not yet supported): %02x %02x %02x %02x", (int)sysex[0], (int)sysex[1], (int)sysex[2], (int)sysex[3]);
return;
}
else if (sysex[2] != 0x16) {
printDebug("playSysexWithoutFraming: Header not intended for MT-32: %02x %02x %02x %02x", (int)sysex[0], (int)sysex[1], (int)sysex[2], (int)sysex[3]);
else if (sysex[2] != SYSEX_MDL_MT32) {
printDebug("playSysexWithoutFraming: Header not intended for model MT-32: %02x %02x %02x %02x", (int)sysex[0], (int)sysex[1], (int)sysex[2], (int)sysex[3]);
return;
}
if (sysex[3] != 0x12) {
printDebug("playSysexWithoutFraming: Unsupported command %02x", sysex[3]);
return;
}
playSysexWithoutHeader(sysex[1], sysex + 4, len - 4);
playSysexWithoutHeader(sysex[1], sysex[3], sysex + 4, len - 4);
}
// MEMADDR() converts from sysex-padded, SYSEXMEMADDR converts to it
// Roland provides documentation using the sysex-padded addresses, so we tend to use that int code and output
#define MEMADDR(x) ((((x) & 0x7f0000) >> 2) | (((x) & 0x7f00) >> 1) | ((x) & 0x7f))
#define SYSEXMEMADDR(x) ((((x) & 0x1FC000) << 2) | (((x) & 0x3F80) << 1) | ((x) & 0x7f))
#define NUMTOUCHED(x,y) (((x) + sizeof(y) - 1) / sizeof(y))
void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit32u len) {
void Synth::playSysexWithoutHeader(unsigned char device, unsigned char command, const Bit8u *sysex, Bit32u len) {
if (device > 0x10) {
// We have device ID 0x10 (default, but changeable, on real MT-32), < 0x10 is for channels
printDebug("playSysexWithoutHeader: Message is not intended for this device ID (provided: %02x, expected: 0x10 or channel)", (int)device);
@ -645,15 +703,47 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
return;
}
len -= 1; // Exclude checksum
switch (command) {
case SYSEX_CMD_DT1:
writeSysex(device, sysex, len);
break;
case SYSEX_CMD_RQ1:
readSysex(device, sysex, len);
break;
default:
printDebug("playSysexWithoutFraming: Unsupported command %02x", command);
return;
}
}
void Synth::readSysex(unsigned char device, const Bit8u *sysex, Bit32u len) {
}
const MemoryRegion memoryRegions[8] = {
{MR_PatchTemp, MT32EMU_MEMADDR(0x030000), sizeof(MemParams::PatchTemp), 9},
{MR_RhythmTemp, MT32EMU_MEMADDR(0x030110), sizeof(MemParams::RhythmTemp), 85},
{MR_TimbreTemp, MT32EMU_MEMADDR(0x040000), sizeof(TimbreParam), 8},
{MR_Patches, MT32EMU_MEMADDR(0x050000), sizeof(PatchParam), 128},
{MR_Timbres, MT32EMU_MEMADDR(0x080000), sizeof(MemParams::PaddedTimbre), 64 + 64 + 64 + 64},
{MR_System, MT32EMU_MEMADDR(0x100000), sizeof(MemParams::SystemArea), 1},
{MR_Display, MT32EMU_MEMADDR(0x200000), MAX_SYSEX_SIZE - 1, 1},
{MR_Reset, MT32EMU_MEMADDR(0x7F0000), 0x3FFF, 1}
};
const int NUM_REGIONS = sizeof(memoryRegions) / sizeof(MemoryRegion);
void Synth::writeSysex(unsigned char device, const Bit8u *sysex, Bit32u len) {
Bit32u addr = (sysex[0] << 16) | (sysex[1] << 8) | (sysex[2]);
addr = MEMADDR(addr);
addr = MT32EMU_MEMADDR(addr);
sysex += 3;
len -= 3;
//printDebug("Sysex addr: 0x%06x", SYSEXMEMADDR(addr));
//printDebug("Sysex addr: 0x%06x", MT32EMU_SYSEXMEMADDR(addr));
// NOTE: Please keep both lower and upper bounds in each check, for ease of reading
// Process channel-specific sysex by converting it to device-global
if (device < 0x10) {
printDebug("WRITE-CHANNEL: Channel %d temp area 0x%06x", device, SYSEXMEMADDR(addr));
if (/*addr >= MEMADDR(0x000000) && */addr < MEMADDR(0x010000)) {
printDebug("WRITE-CHANNEL: Channel %d temp area 0x%06x", device, MT32EMU_SYSEXMEMADDR(addr));
if (/*addr >= MT32EMU_MEMADDR(0x000000) && */addr < MT32EMU_MEMADDR(0x010000)) {
int offset;
if (chantable[device] == -1) {
printDebug(" (Channel not mapped to a partial... 0 offset)");
@ -665,10 +755,10 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
offset = chantable[device] * sizeof(MemParams::PatchTemp);
printDebug(" (Setting extra offset to %d)", offset);
}
addr += MEMADDR(0x030000) + offset;
} else if (/*addr >= 0x010000 && */ addr < MEMADDR(0x020000)) {
addr += MEMADDR(0x030110) - MEMADDR(0x010000);
} else if (/*addr >= 0x020000 && */ addr < MEMADDR(0x030000)) {
addr += MT32EMU_MEMADDR(0x030000) + offset;
} else if (/*addr >= 0x010000 && */ addr < MT32EMU_MEMADDR(0x020000)) {
addr += MT32EMU_MEMADDR(0x030110) - MT32EMU_MEMADDR(0x010000);
} else if (/*addr >= 0x020000 && */ addr < MT32EMU_MEMADDR(0x030000)) {
int offset;
if (chantable[device] == -1) {
printDebug(" (Channel not mapped to a partial... 0 offset)");
@ -680,53 +770,132 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
offset = chantable[device] * sizeof(TimbreParam);
printDebug(" (Setting extra offset to %d)", offset);
}
addr += MEMADDR(0x040000) - MEMADDR(0x020000) + offset;
addr += MT32EMU_MEMADDR(0x040000) - MT32EMU_MEMADDR(0x020000) + offset;
} else {
printDebug("PlaySysexWithoutHeader: Invalid channel %d address 0x%06x", device, SYSEXMEMADDR(addr));
printDebug("PlaySysexWithoutHeader: Invalid channel %d address 0x%06x", device, MT32EMU_SYSEXMEMADDR(addr));
return;
}
}
if (addr >= MEMADDR(0x030000) && addr < MEMADDR(0x030110)) {
int off = addr - MEMADDR(0x030000);
if (off + len > sizeof(mt32ram.patchSettings)) {
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
// Process device-global sysex (possibly converted from channel-specific sysex above)
for (;;) {
// Find the appropriate memory region
int regionNum;
const MemoryRegion *region = NULL; // Initialised to please compiler
for (regionNum = 0; regionNum < NUM_REGIONS; regionNum++) {
region = &memoryRegions[regionNum];
if (region->contains(addr)) {
writeMemoryRegion(region, addr, region->getClampedLen(addr, len), sysex);
break;
}
}
if (regionNum == NUM_REGIONS) {
printDebug("Sysex write to unrecognised address %06x, len %d", MT32EMU_SYSEXMEMADDR(addr), len);
break;
}
Bit32u next = region->next(addr, len);
if (next == 0) {
break;
}
addr += next;
sysex += next;
len -= next;
}
}
void Synth::readMemory(Bit32u addr, Bit32u len, Bit8u *data) {
int regionNum;
const MemoryRegion *region = NULL;
for (regionNum = 0; regionNum < NUM_REGIONS; regionNum++) {
region = &memoryRegions[regionNum];
if (region->contains(addr)) {
readMemoryRegion(region, addr, len, data);
break;
}
}
}
void Synth::readMemoryRegion(const MemoryRegion *region, Bit32u addr, Bit32u len, Bit8u *data) {
unsigned int first = region->firstTouched(addr);
//unsigned int last = region->lastTouched(addr, len);
unsigned int off = region->firstTouchedOffset(addr);
len = region->getClampedLen(addr, len);
unsigned int m;
switch(region->type) {
case MR_PatchTemp:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.patchSettings[first])[off + m];
break;
case MR_RhythmTemp:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.rhythmSettings[first])[off + m];
break;
case MR_TimbreTemp:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.timbreSettings[first])[off + m];
break;
case MR_Patches:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.patches[first])[off + m];
break;
case MR_Timbres:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.timbres[first])[off + m];
break;
case MR_System:
for (m = 0; m < len; m++)
data[m] = ((Bit8u *)&mt32ram.system)[m + off];
break;
default:
for (m = 0; m < len; m += 2) {
data[m] = 0xff;
if (m + 1 < len) {
data[m+1] = (Bit8u)region->type;
}
}
// TODO: Don't care about the others ATM
break;
}
}
void Synth::writeMemoryRegion(const MemoryRegion *region, Bit32u addr, Bit32u len, const Bit8u *data) {
unsigned int first = region->firstTouched(addr);
unsigned int last = region->lastTouched(addr, len);
unsigned int off = region->firstTouchedOffset(addr);
switch (region->type) {
case MR_PatchTemp:
for (unsigned int m = 0; m < len; m++) {
((Bit8u *)&mt32ram.patchSettings[first])[off + m] = data[m];
}
int firstPart = off / sizeof(MemParams::PatchTemp);
off %= sizeof(MemParams::PatchTemp);
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.patchSettings[firstPart])[off + m] = sysex[m];
//printDebug("Patch temp: Patch %d, offset %x, len %d", off/16, off % 16, len);
int lastPart = firstPart + NUMTOUCHED(off + len, MemParams::PatchTemp) - 1;
for (int i = firstPart; i <= lastPart; i++) {
for (unsigned int i = first; i <= last; i++) {
int absTimbreNum = mt32ram.patchSettings[i].patch.timbreGroup * 64 + mt32ram.patchSettings[i].patch.timbreNum;
char timbreName[11];
memcpy(timbreName, mt32ram.timbres[absTimbreNum].timbre.common.name, 10);
timbreName[10] = 0;
printDebug("WRITE-PARTPATCH (%d-%d@%d..%d): %d; timbre=%d (%s)", firstPart, lastPart, off, off + len, i, absTimbreNum, timbreName);
printDebug("WRITE-PARTPATCH (%d-%d@%d..%d): %d; timbre=%d (%s), outlevel=%d", first, last, off, off + len, i, absTimbreNum, timbreName, mt32ram.patchSettings[i].outlevel);
if (parts[i] != NULL) {
if (i == firstPart && off > 2) {
printDebug(" (Not updating timbre, since those values weren't touched)");
} else {
// Not sure whether we should do this at all, really.
parts[i]->setTimbre(&mt32ram.timbres[parts[i]->getAbsTimbreNum()].timbre);
if (i != 8) {
// Note: Confirmed on CM-64 that we definitely *should* update the timbre here,
// but only in the case that the sysex actually writes to those values
if (i == first && off > 2) {
printDebug(" (Not updating timbre, since those values weren't touched)");
} else {
parts[i]->setTimbre(&mt32ram.timbres[parts[i]->getAbsTimbreNum()].timbre);
}
}
parts[i]->refresh();
}
}
} else if (addr >= MEMADDR(0x030110) && addr < MEMADDR(0x040000)) {
int off = addr - MEMADDR(0x030110);
if (off + len > sizeof(mt32ram.rhythmSettings)) {
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
}
int firstDrum = off / sizeof(MemParams::RhythmTemp);
off %= sizeof(MemParams::RhythmTemp);
break;
case MR_RhythmTemp:
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.rhythmSettings[firstDrum])[off + m] = sysex[m];
int lastDrum = firstDrum + NUMTOUCHED(off + len, MemParams::RhythmTemp) - 1;
for (int i = firstDrum; i <= lastDrum; i++) {
((Bit8u *)&mt32ram.rhythmSettings[first])[off + m] = data[m];
for (unsigned int i = first; i <= last; i++) {
int timbreNum = mt32ram.rhythmSettings[i].timbre;
char timbreName[11];
if (timbreNum < 94) {
@ -735,51 +904,36 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
} else {
strcpy(timbreName, "[None]");
}
printDebug("WRITE-RHYTHM (%d-%d@%d..%d): %d; level=%02x, panpot=%02x, reverb=%02x, timbre=%d (%s)", firstDrum, lastDrum, off, off + len, i, mt32ram.rhythmSettings[i].outlevel, mt32ram.rhythmSettings[i].panpot, mt32ram.rhythmSettings[i].reverbSwitch, mt32ram.rhythmSettings[i].timbre, timbreName);
printDebug("WRITE-RHYTHM (%d-%d@%d..%d): %d; level=%02x, panpot=%02x, reverb=%02x, timbre=%d (%s)", first, last, off, off + len, i, mt32ram.rhythmSettings[i].outlevel, mt32ram.rhythmSettings[i].panpot, mt32ram.rhythmSettings[i].reverbSwitch, mt32ram.rhythmSettings[i].timbre, timbreName);
}
if (parts[8] != NULL) {
parts[8]->refresh();
}
} else if (addr >= MEMADDR(0x040000) && addr < MEMADDR(0x050000)) {
int off = addr - MEMADDR(0x040000);
if (off + len > sizeof(mt32ram.timbreSettings)) {
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
}
int firstPart = off / sizeof(TimbreParam);
off %= sizeof(TimbreParam);
break;
case MR_TimbreTemp:
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.timbreSettings[firstPart])[off + m] = sysex[m];
int lastPart = firstPart + NUMTOUCHED(off + len, TimbreParam) - 1;
for (int i = firstPart; i <= lastPart; i++) {
((Bit8u *)&mt32ram.timbreSettings[first])[off + m] = data[m];
for (unsigned int i = first; i <= last; i++) {
char instrumentName[11];
memcpy(instrumentName, mt32ram.timbreSettings[i].common.name, 10);
instrumentName[10] = 0;
printDebug("WRITE-PARTTIMBRE (%d-%d@%d..%d): timbre=%d (%s)", firstPart, lastPart, off, off + len, i, instrumentName);
printDebug("WRITE-PARTTIMBRE (%d-%d@%d..%d): timbre=%d (%s)", first, last, off, off + len, i, instrumentName);
if (parts[i] != NULL) {
parts[i]->refresh();
}
}
}
else if (addr >= MEMADDR(0x050000) && addr < MEMADDR(0x060000)) {
int off = addr - MEMADDR(0x050000);
if (off + len > sizeof(mt32ram.patches)) {
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
}
int firstPatch = off / sizeof(PatchParam);
off %= sizeof(PatchParam);
break;
case MR_Patches:
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.patches[firstPatch])[off + m] = sysex[m];
int lastPatch = firstPatch + NUMTOUCHED(off + len, PatchParam) - 1;
for (int i = firstPatch; i <= lastPatch; i++) {
((Bit8u *)&mt32ram.patches[first])[off + m] = data[m];
for (unsigned int i = first; i <= last; i++) {
PatchParam *patch = &mt32ram.patches[i];
int patchAbsTimbreNum = patch->timbreGroup * 64 + patch->timbreNum;
char instrumentName[11];
memcpy(instrumentName, mt32ram.timbres[patchAbsTimbreNum].timbre.common.name, 10);
instrumentName[10] = 0;
Bit8u *n = (Bit8u *)patch;
printDebug("WRITE-PATCH (%d-%d@%d..%d): %d; timbre=%d (%s) %02X%02X%02X%02X%02X%02X%02X%02X", firstPatch, lastPatch, off, off + len, i, patchAbsTimbreNum, instrumentName, n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7]);
printDebug("WRITE-PATCH (%d-%d@%d..%d): %d; timbre=%d (%s) %02X%02X%02X%02X%02X%02X%02X%02X", first, last, off, off + len, i, patchAbsTimbreNum, instrumentName, n[0], n[1], n[2], n[3], n[4], n[5], n[6], n[7]);
// FIXME:KG: The below is definitely dodgy. We just guess that this is the patch that the part was using
// based on a timbre match (but many patches could have the same timbre!)
// If this refresh is really correct, we should store the patch number in use by each part.
@ -795,25 +949,18 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
}
*/
}
} else if (addr >= MEMADDR(0x080000) && addr < MEMADDR(0x090000)) {
break;
case MR_Timbres:
// Timbres
int off = addr - MEMADDR(0x080000);
if (off + len > sizeof(MemParams::PaddedTimbre) * 64) {
// You can only write to one group at a time
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
}
unsigned int firstTimbre = off / sizeof (MemParams::PaddedTimbre);
off %= sizeof (MemParams::PaddedTimbre);
firstTimbre += 128;
first += 128;
last += 128;
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.timbres[firstTimbre])[off + m] = sysex[m];
unsigned int lastTimbre = firstTimbre + NUMTOUCHED(len + off, MemParams::PaddedTimbre) - 1;
for (unsigned int i = firstTimbre; i <= lastTimbre; i++) {
((Bit8u *)&mt32ram.timbres[first])[off + m] = data[m];
for (unsigned int i = first; i <= last; i++) {
char instrumentName[11];
memcpy(instrumentName, mt32ram.timbres[i].timbre.common.name, 10);
instrumentName[10] = 0;
printDebug("WRITE-TIMBRE (%d-%d@%d..%d): %d; name=\"%s\"", firstTimbre, lastTimbre, off, off + len, i, instrumentName);
printDebug("WRITE-TIMBRE (%d-%d@%d..%d): %d; name=\"%s\"", first, last, off, off + len, i, instrumentName);
// FIXME:KG: Not sure if the stuff below should be done (for rhythm and/or parts)...
// Does the real MT-32 automatically do this?
for (unsigned int part = 0; part < 9; part++) {
@ -822,31 +969,25 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
}
}
}
} else if (addr >= MEMADDR(0x100000) && addr < MEMADDR(0x200000)) {
int off = addr - MEMADDR(0x100000);
if (off + len > sizeof(mt32ram.system)) {
printDebug("playSysexWithoutHeader: Message goes beyond bounds of memory region (addr=0x%06x, len=%d)!", SYSEXMEMADDR(addr), len);
return;
}
break;
case MR_System:
for (unsigned int m = 0; m < len; m++)
((Bit8u *)&mt32ram.system)[m + off] = sysex[m];
((Bit8u *)&mt32ram.system)[m + off] = data[m];
report(ReportType_devReconfig, NULL);
printDebug("WRITE-SYSTEM:");
refreshSystem();
} else if (addr == MEMADDR(0x200000)) {
break;
case MR_Display:
char buf[MAX_SYSEX_SIZE];
if (len > MAX_SYSEX_SIZE - 1) {
printDebug("WRITE-LCD sysex length (%d) exceeded MAX_SYSEX_SIZE (%d) - 1; truncating", len, MAX_SYSEX_SIZE);
len = MAX_SYSEX_SIZE - 1;
}
memcpy(&buf, &sysex[0], len);
memcpy(&buf, &data[0], len);
buf[len] = 0;
printDebug("WRITE-LCD: %s", buf);
report(ReportType_lcdMessage, buf);
} else if (addr >= MEMADDR(0x7f0000)) {
printDebug("Reset");
break;
case MR_Reset:
printDebug("RESET");
report(ReportType_devReset, NULL);
partialManager->deactivateAll();
mt32ram = mt32default;
@ -854,18 +995,17 @@ void Synth::playSysexWithoutHeader(unsigned char device, const Bit8u *sysex, Bit
parts[i]->refresh();
}
isEnabled = false;
} else {
printDebug("Sysex write to unrecognised address %06x", SYSEXMEMADDR(addr));
break;
}
}
bool Synth::refreshSystem() {
memset(chantable,-1,sizeof(chantable));
memset(chantable, -1, sizeof(chantable));
for (unsigned int i = 0; i < 9; i++) {
//LOG(LOG_MISC|LOG_ERROR,"Part %d set to MIDI channel %d",i,mt32ram.system.chanAssign[i]);
if (mt32ram.system.chanAssign[i] == 16 && parts[i] != NULL) {
parts[i]->allStop();
parts[i]->allSoundOff();
} else {
chantable[(int)mt32ram.system.chanAssign[i]] = (char)i;
}
@ -894,8 +1034,8 @@ bool Synth::refreshSystem() {
rset = mt32ram.system.chanAssign;
printDebug(" Part assign: 1=%02d 2=%02d 3=%02d 4=%02d 5=%02d 6=%02d 7=%02d 8=%02d Rhythm=%02d", rset[0], rset[1], rset[2], rset[3], rset[4], rset[5], rset[6], rset[7], rset[8]);
printDebug(" Master volume: %d", mt32ram.system.masterVol);
masterVolume = (Bit16u)(mt32ram.system.masterVol * 327);
if (!TableInitialiser::initMT32Tables(this, PCMList, (float)myProp.sampleRate, masterTune)) {
masterVolume = (Bit16u)(mt32ram.system.masterVol * 32767 / 100);
if (!tables.init(this, pcmWaves, (float)myProp.sampleRate, masterTune)) {
report(ReportType_errorSampleRate, NULL);
return false;
}
@ -984,38 +1124,31 @@ void Synth::render(Bit16s *stream, Bit32u len) {
}
}
void Synth::doRender(Bit16s * stream,Bit32u len) {
Bit32u m;
void Synth::doRender(Bit16s *stream, Bit32u len) {
partialManager->ageAll();
if (myProp.useReverb) {
bool hasOutput = false;
for (unsigned int i = 0; i < MT32EMU_MAX_PARTIALS; i++) {
if (partialManager->shouldReverb(i)) {
if (partialManager->produceOutput(i, &tmpBuffer[0], len)) {
ProduceOutput1(&tmpBuffer[0], stream, len, masterVolume);
hasOutput = true;
}
}
}
// No point in doing reverb on a mute buffer...
if (hasOutput) {
m=0;
for (unsigned int i = 0; i < len; i++) {
sndbufl[i] = (float)stream[m] / 32767.0f;
m++;
sndbufr[i] = (float)stream[m] / 32767.0f;
m++;
}
reverbModel->processreplace(sndbufl, sndbufr, outbufl, outbufr, len, 1);
m=0;
for (unsigned int i = 0; i < len; i++) {
stream[m] = (Bit16s)(outbufl[i] * 32767.0f);
m++;
stream[m] = (Bit16s)(outbufr[i] * 32767.0f);
m++;
}
Bit32u m = 0;
for (unsigned int i = 0; i < len; i++) {
sndbufl[i] = (float)stream[m] / 32767.0f;
m++;
sndbufr[i] = (float)stream[m] / 32767.0f;
m++;
}
reverbModel->processreplace(sndbufl, sndbufr, outbufl, outbufr, len, 1);
m=0;
for (unsigned int i = 0; i < len; i++) {
stream[m] = (Bit16s)(outbufl[i] * 32767.0f);
m++;
stream[m] = (Bit16s)(outbufr[i] * 32767.0f);
m++;
}
for (unsigned int i = 0; i < MT32EMU_MAX_PARTIALS; i++) {
if (!partialManager->shouldReverb(i)) {
@ -1045,4 +1178,14 @@ void Synth::doRender(Bit16s * stream,Bit32u len) {
#endif
}
const Partial *Synth::getPartial(unsigned int partialNum) const {
return partialManager->getPartial(partialNum);
}
const Part *Synth::getPart(unsigned int partNum) const {
if (partNum > 8)
return NULL;
return parts[partNum];
}
}

132
sound/softsynth/mt32/synth.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -28,10 +28,6 @@ class revmodel;
namespace MT32Emu {
const int ROMSIZE = 512 * 1024;
const int PCMSIZE = ROMSIZE / 2;
const int GRAN = 512;
class File;
class TableInitialiser;
class Partial;
@ -104,28 +100,118 @@ typedef void (*recalcStatusCallback)(int percDone);
// callback routine, no status is reported.
bool RecalcWaveforms(char * baseDir, int sampRate, recalcStatusCallback callBack);
typedef float (*iir_filter_type)(float input,float *hist1_ptr, float *coef_ptr, int revLevel);
typedef float (*iir_filter_type)(float input,float *hist1_ptr, float *coef_ptr);
const Bit8u SYSEX_MANUFACTURER_ROLAND = 0x41;
const Bit8u SYSEX_MDL_MT32 = 0x16;
const Bit8u SYSEX_MDL_D50 = 0x14;
const Bit8u SYSEX_CMD_RQ1 = 0x11; // Request data #1
const Bit8u SYSEX_CMD_DT1 = 0x12; // Data set 1
const Bit8u SYSEX_CMD_WSD = 0x40; // Want to send data
const Bit8u SYSEX_CMD_RQD = 0x41; // Request data
const Bit8u SYSEX_CMD_DAT = 0x42; // Data set
const Bit8u SYSEX_CMD_ACK = 0x43; // Acknowledge
const Bit8u SYSEX_CMD_EOD = 0x45; // End of data
const Bit8u SYSEX_CMD_ERR = 0x4E; // Communications error
const Bit8u SYSEX_CMD_RJC = 0x4F; // Rejection
const unsigned int CONTROL_ROM_SIZE = 64 * 1024;
struct ControlROMPCMStruct
{
Bit8u pos;
Bit8u len;
Bit8u pitchLSB;
Bit8u pitchMSB;
};
struct ControlROMMap {
Bit16u idPos;
Bit16u idLen;
const char *idBytes;
Bit16u pcmTable;
Bit16u pcmCount;
Bit16u timbreAMap;
Bit16u timbreAOffset;
Bit16u timbreBMap;
Bit16u timbreBOffset;
Bit16u timbreRMap;
Bit16u timbreRCount;
Bit16u rhythmSettings;
Bit16u rhythmSettingsCount;
Bit16u reserveSettings;
Bit16u panSettings;
Bit16u programSettings;
};
enum MemoryRegionType {
MR_PatchTemp, MR_RhythmTemp, MR_TimbreTemp, MR_Patches, MR_Timbres, MR_System, MR_Display, MR_Reset
};
class MemoryRegion {
public:
MemoryRegionType type;
Bit32u startAddr, entrySize, entries;
int lastTouched(Bit32u addr, Bit32u len) const {
return (offset(addr) + len - 1) / entrySize;
}
int firstTouchedOffset(Bit32u addr) const {
return offset(addr) % entrySize;
}
int firstTouched(Bit32u addr) const {
return offset(addr) / entrySize;
}
Bit32u regionEnd() const {
return startAddr + entrySize * entries;
}
bool contains(Bit32u addr) const {
return addr >= startAddr && addr < regionEnd();
}
int offset(Bit32u addr) const {
return addr - startAddr;
}
Bit32u getClampedLen(Bit32u addr, Bit32u len) const {
if (addr + len > regionEnd())
return regionEnd() - addr;
return len;
}
Bit32u next(Bit32u addr, Bit32u len) const {
if (addr + len > regionEnd()) {
return regionEnd() - addr;
}
return 0;
}
};
class Synth {
friend class Part;
friend class RhythmPart;
friend class Partial;
friend class TableInitialiser;
friend class Tables;
private:
bool isEnabled;
iir_filter_type iirFilter;
PCMWaveEntry PCMList[128];
PCMWaveEntry *pcmWaves; // Array
const ControlROMMap *controlROMMap;
Bit8u controlROMData[CONTROL_ROM_SIZE];
Bit16s *pcmROMData;
int pcmROMSize; // This is in 16-bit samples, therefore half the number of bytes in the ROM
Bit8u controlROMData[64 * 1024];
Bit16s romfile[PCMSIZE + GRAN];
Bit8s chantable[32];
#if MT32EMU_MONITOR_PARTIALS == 1
static Bit32s samplepos = 0;
#endif
Tables tables;
MemParams mt32ram, mt32default;
revmodel *reverbModel;
@ -149,19 +235,23 @@ private:
bool loadPreset(File *file);
void initReverb(Bit8u newRevMode, Bit8u newRevTime, Bit8u newRevLevel);
void doRender(Bit16s * stream, Bit32u len);
void playMsgOnPart(unsigned char part, unsigned char code, unsigned char note, unsigned char velocity);
void playSysexWithoutHeader(unsigned char channel, const Bit8u *sysex, Bit32u len);
void playAddressedSysex(unsigned char channel, const Bit8u *sysex, Bit32u len);
void readSysex(unsigned char channel, const Bit8u *sysex, Bit32u len);
void writeMemoryRegion(const MemoryRegion *region, Bit32u addr, Bit32u len, const Bit8u *data);
void readMemoryRegion(const MemoryRegion *region, Bit32u addr, Bit32u len, Bit8u *data);
bool loadControlROM(const char *filename);
bool loadPCMROM(const char *filename);
bool dumpTimbre(File *file, const TimbreParam *timbre, Bit32u addr);
int dumpTimbres(const char *filename, int start, int len);
void initPCMList();
void initRhythmTimbres();
void initTimbres(Bit16u mapAddress, int startTimbre);
void initRhythmTimbre(int drumNum, const Bit8u *mem);
bool initPCMList(Bit16u mapAddress, Bit16u count);
bool initRhythmTimbres(Bit16u mapAddress, Bit16u count);
bool initTimbres(Bit16u mapAddress, Bit16u offset, int startTimbre);
bool initRhythmTimbre(int drumNum, const Bit8u *mem, unsigned int memLen);
bool refreshSystem();
protected:
int report(ReportType type, const void *reportData);
File *openFile(const char *filename, File::OpenMode mode);
@ -183,16 +273,26 @@ public:
// Sends a 4-byte MIDI message to the MT-32 for immediate playback
void playMsg(Bit32u msg);
void playMsgOnPart(unsigned char part, unsigned char code, unsigned char note, unsigned char velocity);
// Sends a string of Sysex commands to the MT-32 for immediate interpretation
// The length is in bytes
void playSysex(const Bit8u *sysex, Bit32u len);
void playSysexWithoutFraming(const Bit8u *sysex, Bit32u len);
void playSysexWithoutHeader(unsigned char device, unsigned char command, const Bit8u *sysex, Bit32u len);
void writeSysex(unsigned char channel, const Bit8u *sysex, Bit32u len);
// This callback routine is used to have the MT-32 generate samples to the specified
// output stream. The length is in whole samples, not bytes. (I.E. in 16-bit stereo,
// one sample is 4 bytes)
void render(Bit16s * stream, Bit32u len);
const Partial *getPartial(unsigned int partialNum) const;
void readMemory(Bit32u addr, Bit32u len, Bit8u *data);
// partNum should be 0..7 for Part 1..8, or 8 for Rhythm
const Part *getPart(unsigned int partNum) const;
};
}

309
sound/softsynth/mt32/tables.cpp

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -30,8 +30,8 @@
namespace MT32Emu {
//Amplitude time velocity follow exponential coefficients
const double tvcatconst[5] = {0.0, 0.002791309, 0.005942882, 0.012652792, 0.026938637};
const double tvcatmult[5] = {1.0, 1.072662811, 1.169129367, 1.288579123, 1.229630539};
static const double tvcatconst[5] = {0.0, 0.002791309, 0.005942882, 0.012652792, 0.026938637};
static const double tvcatmult[5] = {1.0, 1.072662811, 1.169129367, 1.288579123, 1.229630539};
// These are division constants for the TVF depth key follow
static const Bit32u depexp[5] = {3000, 950, 485, 255, 138};
@ -40,36 +40,6 @@ static const Bit32u depexp[5] = {3000, 950, 485, 255, 138};
static const double tkcatconst[5] = {0.0, 0.005853144, 0.011148054, 0.019086143, 0.043333215};
static const double tkcatmult[5] = {1.0, 1.058245688, 1.048488989, 1.016049301, 1.097538067};
static float initialisedSampleRate = 0.0f;
static float initialisedMasterTune = 0.0f;
Bit16s smallnoise[MAX_SAMPLE_OUTPUT];
// Some optimization stuff
Bit32s keytable[217];
Bit16s sintable[65536];
Bit32u lfotable[101];
Bit32s penvtable[16][101];
Bit32s filveltable[128][101];
Bit32s veltkeytable[5][128];
Bit32s pulsetable[101];
Bit32s pulseoffset[101];
Bit32s ampbiastable[13][128];
Bit32s fbiastable[15][128];
float filtcoeff[FILTERGRAN][31][8];
Bit32s finetable[201];
Bit32u lfoptable[101][101];
Bit32s ampveltable[128][64];
Bit32s pwveltable[15][128];
Bit32s envtimetable[101];
Bit32s decaytimetable[101];
Bit32s lasttimetable[101];
Bit32s voltable[128];
float ResonFactor[31];
float ResonInv[31];
NoteLookup noteLookups[NUM_NOTES];
// Begin filter stuff
// Pre-warp the coefficients of a numerator or denominator.
@ -169,68 +139,66 @@ static void initFilter(float fs, float fc, float *icoeff, float Q) {
icoeff[0] = (float)k;
}
static void initFiltCoeff(float samplerate) {
void Tables::initFiltCoeff(float samplerate) {
for (int j = 0; j < FILTERGRAN; j++) {
for (int res = 0; res < 31; res++) {
float tres = ResonFactor[res];
initFilter((float)samplerate, (((float)(j+1.0)/FILTERGRAN)) * ((float)samplerate/2), filtcoeff[j][res], tres);
float tres = resonanceFactor[res];
initFilter((float)samplerate, (((float)(j+1.0)/FILTERGRAN)) * ((float)samplerate/2), filtCoeff[j][res], tres);
}
}
}
static void initEnvelopes(float samplerate) {
void Tables::initEnvelopes(float samplerate) {
for (int lf = 0; lf <= 100; lf++) {
float elf = (float)lf;
// General envelope
float logtime = elf * 0.088362939f;
envtimetable[lf] = (int)((exp(logtime)/312.12) * (float)samplerate);
// This formula fits observation of the CM-32L by +/- 0.03s or so for the second time value in the filter,
// when all other times were 0 and all levels were 100. Note that variations occur depending on the level
// delta of the section, which we're not fully emulating.
float seconds = powf(2.0f, (elf / 8.0f) + 7.0f) / 32768.0f;
int samples = (int)(seconds * samplerate);
envTime[lf] = samples;
// Decay envelope -- shorter for some reason
// This is also the timing for the envelope right before the
// amp and filter envelope sustains
// Cap on envelope times depending on the level delta
if(elf == 0) {
envDeltaMaxTime[lf] = 63;
} else {
float cap = 11 * log(elf) + 64;
if(cap > 100.0f) {
cap = 100.0f;
}
envDeltaMaxTime[lf] = (int)cap;
}
lasttimetable[lf] = decaytimetable[lf] = (int)((exp(logtime)/(312.12*2)) * (float)samplerate);
//lasttimetable[lf] = (int)((exp(logtime)/(312.12*6)) * (float)samplerate);
float mv = (float)lf / 100.0f;
float pt = mv - 0.5f;
if (pt < 0)
pt = 0;
pulsetable[lf] = (int)(pt * 215.04f) + 128;
// This (approximately) represents the time durations when the target level is 0.
// Not sure why this is a special case, but it's seen to be from the real thing.
seconds = powf(2, (elf / 8.0f) + 6) / 32768.0f;
envDecayTime[lf] = (int)(seconds * samplerate);
// I am certain of this: Verified by hand LFO log
lfotable[lf] = (Bit32u)(((float)samplerate) / (powf(1.088883372f,(float)lf) * 0.021236044f));
//LOG(LOG_ERROR|LOG_MISC,"lf %d = lfo %d pulsetable %d", lf, lfotable[lf], pulsetable[lf]);
lfoPeriod[lf] = (Bit32u)(((float)samplerate) / (powf(1.088883372f, (float)lf) * 0.021236044f));
}
}
void TableInitialiser::initMT32ConstantTables(Synth *synth) {
if (initialisedSampleRate > 0.0f) {
return;
}
void Tables::initMT32ConstantTables(Synth *synth) {
int lf;
synth->printDebug("Initialising Pitch Tables");
for (lf = -108; lf <= 108; lf++) {
keytable[lf + 108] = (int)(256 * powf(2.0f, (float)(lf / 24.0f)));
tvfKeyfollowMult[lf + 108] = (int)(256 * powf(2.0f, (float)(lf / 24.0f)));
//synth->printDebug("KT %d = %d", f, keytable[f+108]);
}
int res;
float fres;
for (res = 0; res < 31; res++) {
fres = (float)res / 30.0f;
ResonFactor[res] = (powf(2.0f, logf(powf(fres, 16.0f))) * 2.5f) + 1.0f;
ResonInv[res] = 1 / ResonFactor[res];
for (int res = 0; res < 31; res++) {
resonanceFactor[res] = powf((float)res / 30.0f, 5.0f) + 1.0f;
}
int period = 65536;
for (int ang = 0; ang < period; ang++) {
int halfang = (period / 2);
int angval = ang % halfang;
int angval = ang % halfang;
float tval = (((float)angval / (float)halfang) - 0.5f) * 2;
if (ang >= halfang)
tval = -tval;
@ -242,14 +210,14 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
for (velt = 0; velt < 128; velt++) {
for (dep = 0; dep < 5; dep++) {
if (dep > 0) {
float ff = (float)(exp(3.5f*tvcatconst[dep] * (59.0f-(float)velt)) * tvcatmult[dep]);
float ff = (float)(exp(3.5f * tvcatconst[dep] * (59.0f - (float)velt)) * tvcatmult[dep]);
tempdep = 256.0f * ff;
veltkeytable[dep][velt] = (int)tempdep;
envTimeVelfollowMult[dep][velt] = (int)tempdep;
//if ((velt % 16) == 0) {
// synth->printDebug("Key %d, depth %d, factor %d", velt, dep, (int)tempdep);
//}
} else
veltkeytable[dep][velt] = 256;
envTimeVelfollowMult[dep][velt] = 256;
}
for (dep = -7; dep < 8; dep++) {
@ -257,7 +225,7 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
fldep = powf(fldep,2.5f);
if (dep < 0)
fldep = fldep * -1.0f;
pwveltable[dep+7][velt] = Bit32s((fldep * (float)velt * 100) / 128.0);
pwVelfollowAdd[dep+7][velt] = Bit32s((fldep * (float)velt * 100) / 128.0);
}
}
@ -269,46 +237,54 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
float fbase;
if (velt > 64)
filveltable[velt][dep] = (int)(flogdep * 256.0);
synth->tables.tvfVelfollowMult[velt][dep] = (int)(flogdep * 256.0);
else {
//lff = 1 - (pow(((128.0 - (float)lf) / 64.0),.25) * ((float)velt / 96));
fbase = 1 - (powf(((float)dep / 100.0f),.25f) * ((float)(64-velt) / 96.0f));
filveltable[velt][dep] = (int)(fbase * 256.0);
synth->tables.tvfVelfollowMult[velt][dep] = (int)(fbase * 256.0);
}
//synth->printDebug("Filvel dep %d velt %d = %x", dep, velt, filveltable[velt][dep]);
}
}
for (lf = 0; lf <= 200; lf++) {
//FIXME:KG: I'm fairly sure this is wrong... lf=100 should yield no fine-tuning (4096)?
finetable[lf] = (int)((powf(2.0f, (((float)lf / 200.0f) - 1.0f) / 12.0f)) * 4096.0f);
// FIXME:KG: This now gives a range of -1 .. 1 semitone. Should be correct, but check
//finetable[lf] = (int)((powf(2.0f, (((float)lf / 100.0f) - 1.0f) / 12.0f)) * 4096.0f);
}
float lff;
for (lf = 0; lf < 128; lf++) {
for (velt = 0; velt < 64; velt++) {
lff = 1 - (powf(((128.0f - (float)lf) / 64.0f), 0.25f) * ((float)velt / 96));
ampveltable[lf][velt] = (int)(lff * 256.0);
//synth->printDebug("Ampveltable: %d, %d = %d", lf, velt, ampveltable[lf][velt]);
float veloFract = lf / 127.0f;
for (int velsens = 0; velsens <= 100; velsens++) {
float sensFract = (velsens - 50) / 50.0f;
if (velsens < 50) {
tvaVelfollowMult[lf][velsens] = FIXEDPOINT_MAKE(1.0f / powf(2.0f, veloFract * -sensFract * 127.0f / 20.0f), 8);
} else {
tvaVelfollowMult[lf][velsens] = FIXEDPOINT_MAKE(1.0f / powf(2.0f, (1.0f - veloFract) * sensFract * 127.0f / 20.0f), 8);
}
}
}
for (lf = 0; lf < 128; lf++) {
// Converts MIDI velocity to volume.
voltable[lf] = FIXEDPOINT_MAKE(powf((float)lf / 127.0f, FLOAT_LN), 7);
for (lf = 0; lf <= 100; lf++) {
// Converts the 0-100 range used by the MT-32 to volume multiplier
volumeMult[lf] = FIXEDPOINT_MAKE(powf((float)lf / 100.0f, FLOAT_LN), 7);
}
for (lf = 0; lf <= 100; lf++) {
float mv = lf / 100.0f;
float pt = mv - 0.5f;
if (pt < 0)
pt = 0;
// Original (CC version)
//pwFactor[lf] = (int)(pt * 210.04f) + 128;
// Approximation from sample comparison
pwFactor[lf] = (int)(pt * 179.0f) + 128;
}
for (unsigned int i = 0; i < MAX_SAMPLE_OUTPUT; i++) {
int myRand;
myRand = rand();
int origRand = myRand;
//myRand = ((myRand - 16383) * WGAMP) >> 16;
//myRand = ((myRand - 16383) * 7168) >> 16;
// This one is slower but works with all values of RAND_MAX
myRand = (int)((origRand - RAND_MAX / 2) / (float)RAND_MAX * (WGAMP / 2));
myRand = (int)((myRand - RAND_MAX / 2) / (float)RAND_MAX * (7168 / 2));
//FIXME:KG: Original ultimately set the lowest two bits to 0, for no obvious reason
smallnoise[i] = (Bit16s)myRand;
noiseBuf[i] = (Bit16s)myRand;
}
float tdist;
@ -360,10 +336,10 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
finalval = 4096.0f * powf(2, lfp);
pval = (int)finalval;
penvtable[lf][depat] = pval;
pitchEnvVal[lf][depat] = pval;
//synth->printDebug("lf %d depat %d pval %d tlf %f lfp %f", lf,depat,pval, tlf, lfp);
} else {
penvtable[lf][depat] = 4096;
pitchEnvVal[lf][depat] = 4096;
//synth->printDebug("lf %d depat %d pval 4096", lf, depat);
}
}
@ -379,7 +355,7 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
pval = (int)finalval;
lfoptable[lf][depat] = pval;
lfoShift[lf][depat] = pval;
//synth->printDebug("lf %d depat %d pval %x", lf,depat,pval);
}
@ -391,15 +367,27 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
if (lf == 0) {
amplog = 0;
dval = 1;
ampbiastable[lf][distval] = 256;
tvaBiasMult[lf][distval] = 256;
} else {
/*
amplog = powf(1.431817011f, (float)lf) / FLOAT_PI;
dval = ((128.0f - (float)distval) / 128.0f);
amplog = expf(amplog);
dval = powf(amplog, dval) / amplog;
ampbiastable[lf][distval] = (int)(dval * 256.0);
tvaBiasMult[lf][distval] = (int)(dval * 256.0);
*/
// Lets assume for a second it's linear
// Distance of full volume reduction
amplog = (float)(12.0f / (float)lf) * 24.0f;
if(distval > amplog) {
tvaBiasMult[lf][distval] = 0;
} else {
dval = (amplog - (float)distval) / amplog;
tvaBiasMult[lf][distval] = (int)(dval * 256.0f);
}
}
//synth->printDebug("Ampbias lf %d distval %d = %f (%x) %f", lf, distval, dval, ampbiastable[lf][distval],amplog);
//synth->printDebug("Ampbias lf %d distval %d = %f (%x) %f", lf, distval, dval, tvaBiasMult[lf][distval],amplog);
}
}
@ -410,7 +398,7 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
if (lf == 7) {
amplog = 0;
dval = 1;
fbiastable[lf][distval] = 256;
tvfBiasMult[lf][distval] = 256;
} else {
//amplog = pow(1.431817011, filval) / FLOAT_PI;
amplog = powf(1.531817011f, filval) / FLOAT_PI;
@ -418,30 +406,30 @@ void TableInitialiser::initMT32ConstantTables(Synth *synth) {
amplog = expf(amplog);
dval = powf(amplog,dval)/amplog;
if (lf < 8) {
fbiastable[lf][distval] = (int)(dval * 256.0f);
tvfBiasMult[lf][distval] = (int)(dval * 256.0f);
} else {
dval = powf(dval, 0.3333333f);
if (dval < 0.01f)
dval = 0.01f;
dval = 1 / dval;
fbiastable[lf][distval] = (int)(dval * 256.0f);
tvfBiasMult[lf][distval] = (int)(dval * 256.0f);
}
}
//synth->printDebug("Fbias lf %d distval %d = %f (%x) %f", lf, distval, dval, fbiastable[lf][distval],amplog);
//synth->printDebug("Fbias lf %d distval %d = %f (%x) %f", lf, distval, dval, tvfBiasMult[lf][distval],amplog);
}
}
}
// Per-note table initialisation follows
static void initSaw(NoteLookup *noteLookup, Bit32s div) {
static void initSaw(NoteLookup *noteLookup, Bit32s div2) {
int tmpdiv = div2 << 16;
for (int rsaw = 0; rsaw <= 100; rsaw++) {
float fsaw;
if (rsaw < 50)
fsaw = 50.0f;
else
fsaw = (float)rsaw;
int tmpdiv = div << 17;
//(66 - (((A8 - 50) / 50) ^ 0.63) * 50) / 132
float sawfact = (66.0f - (powf((fsaw - 50.0f) / 50.0f, 0.63f) * 50.0f)) / 132.0f;
@ -450,11 +438,11 @@ static void initSaw(NoteLookup *noteLookup, Bit32s div) {
}
}
static void initDep(NoteLookup *noteLookup, float f) {
static void initDep(KeyLookup *keyLookup, float f) {
for (int dep = 0; dep < 5; dep++) {
if (dep == 0) {
noteLookup->fildepTable[dep] = 256;
noteLookup->timekeyTable[dep] = 256;
keyLookup->envDepthMult[dep] = 256;
keyLookup->envTimeMult[dep] = 256;
} else {
float depfac = 3000.0f;
float ff, tempdep;
@ -462,20 +450,32 @@ static void initDep(NoteLookup *noteLookup, float f) {
ff = (f - (float)MIDDLEC) / depfac;
tempdep = powf(2, ff) * 256.0f;
noteLookup->fildepTable[dep] = (int)tempdep;
keyLookup->envDepthMult[dep] = (int)tempdep;
ff = (float)(exp(tkcatconst[dep] * ((float)MIDDLEC - f)) * tkcatmult[dep]);
noteLookup->timekeyTable[dep] = (int)(ff * 256.0f);
keyLookup->envTimeMult[dep] = (int)(ff * 256.0f);
}
}
//synth->printDebug("F %f d1 %x d2 %x d3 %x d4 %x d5 %x", f, noteLookup->fildepTable[0], noteLookup->fildepTable[1], noteLookup->fildepTable[2], noteLookup->fildepTable[3], noteLookup->fildepTable[4]);
}
File *TableInitialiser::initWave(Synth *synth, NoteLookup *noteLookup, float ampsize, float div, File *file) {
int iDiv = (int)div;
noteLookup->waveformSize[0] = iDiv << 2;
noteLookup->waveformSize[1] = iDiv << 2;
noteLookup->waveformSize[2] = iDiv << 3;
Bit16s Tables::clampWF(Synth *synth, const char *n, float ampVal, double input) {
Bit32s x = (Bit32s)(input * ampVal);
if (x < -ampVal - 1) {
synth->printDebug("%s==%d<-WGAMP-1!", n, x);
x = (Bit32s)(-ampVal - 1);
} else if (x > ampVal) {
synth->printDebug("%s==%d>WGAMP!", n, x);
x = (Bit32s)ampVal;
}
return (Bit16s)x;
}
File *Tables::initWave(Synth *synth, NoteLookup *noteLookup, float ampVal, float div2, File *file) {
int iDiv2 = (int)div2;
noteLookup->waveformSize[0] = iDiv2 << 1;
noteLookup->waveformSize[1] = iDiv2 << 1;
noteLookup->waveformSize[2] = iDiv2 << 2;
for (int i = 0; i < 3; i++) {
if (noteLookup->waveforms[i] == NULL) {
noteLookup->waveforms[i] = new Bit16s[noteLookup->waveformSize[i]];
@ -495,27 +495,27 @@ File *TableInitialiser::initWave(Synth *synth, NoteLookup *noteLookup, float amp
}
}
if (file == NULL) {
double sd = DOUBLE_PI / (div * 2.0);
double sd = DOUBLE_PI / div2;
for (int fa = 0; fa < (iDiv << 2); fa++) {
for (int fa = 0; fa < (iDiv2 << 1); fa++) {
// sa ranges from 0 to 2PI
double sa = fa * sd;
#if 0
//FIXME:KG: Credit Timo Strunk (bastardo on #scummvm) for help with this!
double saw = 0.5 * DOUBLE_PI - sa / 2;
#else
// Calculate a sample for the bandlimited sawtooth wave
double saw = 0.0;
for (int sinus = 1; sinus < div; sinus++) {
double fsinus = (double)sinus;
saw += sin(fsinus * sa) / fsinus;
int sincs = iDiv2 >> 1;
double sinus = 1.0;
for (int sincNum = 1; sincNum <= sincs; sincNum++) {
saw += sin(sinus * sa) / sinus;
sinus++;
}
#endif
// This works pretty well
noteLookup->waveforms[0][fa] = (Bit16s)(saw * -ampsize / 2);
noteLookup->waveforms[1][fa] = (Bit16s)(cos(sa / 2.0) * -ampsize);
noteLookup->waveforms[2][fa * 2] = (Bit16s)(cos(sa - DOUBLE_PI) * -ampsize);
noteLookup->waveforms[2][fa * 2 + 1] = (Bit16s)(cos((sa + (sd / 2)) - DOUBLE_PI) * -ampsize);
// Multiplied by 0.84 so that the spikes caused by bandlimiting don't overdrive the amplitude
noteLookup->waveforms[0][fa] = clampWF(synth, "saw", ampVal, -saw / (0.5 * DOUBLE_PI) * 0.84);
noteLookup->waveforms[1][fa] = clampWF(synth, "cos", ampVal, -cos(sa / 2.0));
noteLookup->waveforms[2][fa * 2] = clampWF(synth, "cosoff_0", ampVal, -cos(sa - DOUBLE_PI));
noteLookup->waveforms[2][fa * 2 + 1] = clampWF(synth, "cosoff_1", ampVal, -cos((sa + (sd / 2)) - DOUBLE_PI));
}
}
return file;
@ -547,11 +547,12 @@ static void initNFiltTable(NoteLookup *noteLookup, float freq, float rate) {
float cfmult = (float)cf;
for (int tf = 0;tf <= 100; tf++) {
float tfadd = (float)(tf - 0);
if (tfadd < 0)
tfadd = 0;
float tfadd = (float)tf;
float freqsum = expf((cfmult + tfadd) / 30.0f) / 4.0f;
//float freqsum = expf((cfmult + tfadd) / 30.0f) / 4.0f;
//float freqsum = 0.15f * expf(0.45f * ((cfmult + tfadd) / 10.0f));
float freqsum = powf(2.0f, ((cfmult + tfadd) - 40.0f) / 16.0f);
noteLookup->nfiltTable[cf][tf] = (int)((freq * freqsum) / (rate / 2) * FILTERGRAN);
if (noteLookup->nfiltTable[cf][tf] >= ((FILTERGRAN * 15) / 16))
@ -560,26 +561,25 @@ static void initNFiltTable(NoteLookup *noteLookup, float freq, float rate) {
}
}
File *TableInitialiser::initNote(Synth *synth, NoteLookup *noteLookup, float note, float rate, float masterTune, PCMWaveEntry pcmWaves[128], File *file) {
float ampsize = WGAMP;
File *Tables::initNote(Synth *synth, NoteLookup *noteLookup, float note, float rate, float masterTune, PCMWaveEntry *pcmWaves, File *file) {
float freq = (float)(masterTune * pow(2.0, ((double)note - MIDDLEA) / 12.0));
float div = rate / freq;
noteLookup->div = (int)div;
float div2 = rate * 2.0f / freq;
noteLookup->div2 = (int)div2;
if (noteLookup->div == 0)
noteLookup->div = 1;
if (noteLookup->div2 == 0)
noteLookup->div2 = 1;
initSaw(noteLookup, noteLookup->div);
initDep(noteLookup, note);
initSaw(noteLookup, noteLookup->div2);
//synth->printDebug("Note %f; freq=%f, div=%f", note, freq, rate / freq);
file = initWave(synth, noteLookup, ampsize, div, file);
file = initWave(synth, noteLookup, (const float)WGAMP, div2, file);
// Create the pitch tables
if (noteLookup->wavTable == NULL)
noteLookup->wavTable = new Bit32u[synth->controlROMMap->pcmCount];
double rateMult = 32000.0 / rate;
double tuner = freq * 65536.0f;
for (int pc = 0; pc < 128; pc++) {
for (int pc = 0; pc < synth->controlROMMap->pcmCount; pc++) {
noteLookup->wavTable[pc] = (int)(tuner / pcmWaves[pc].tune * rateMult);
}
@ -588,13 +588,13 @@ File *TableInitialiser::initNote(Synth *synth, NoteLookup *noteLookup, float not
return file;
}
bool TableInitialiser::initNotes(Synth *synth, PCMWaveEntry pcmWaves[128], float rate, float masterTune) {
bool Tables::initNotes(Synth *synth, PCMWaveEntry *pcmWaves, float rate, float masterTune) {
const char *NoteNames[12] = {
"C ", "C#", "D ", "D#", "E ", "F ", "F#", "G ", "G#", "A ", "A#", "B "
};
char filename[64];
int intRate = (int)rate;
char version[4] = {0, 0, 0, 3};
char version[4] = {0, 0, 0, 5};
sprintf(filename, "waveformcache-%d-%.2f.raw", intRate, masterTune);
File *file = NULL;
@ -649,7 +649,7 @@ bool TableInitialiser::initNotes(Synth *synth, PCMWaveEntry pcmWaves[128], float
bool abort = false;
synth->report(ReportType_progressInit, &progress);
for (int f = LOWEST_NOTE; f <= HIGHEST_NOTE; f++) {
synth->printDebug("Initialising note %s%d", NoteNames[f % 12], (f / 12) - 1);
synth->printDebug("Initialising note %s%d", NoteNames[f % 12], (f / 12) - 2);
NoteLookup *noteLookup = &noteLookups[f - LOWEST_NOTE];
file = initNote(synth, noteLookup, (float)f, rate, masterTune, pcmWaves, file);
progress = (f - LOWEST_NOTE + 1) / (float)NUM_NOTES;
@ -690,7 +690,7 @@ bool TableInitialiser::initNotes(Synth *synth, PCMWaveEntry pcmWaves[128], float
return !abort;
}
void TableInitialiser::freeNotes() {
void Tables::freeNotes() {
for (int t = 0; t < 3; t++) {
for (int m = 0; m < NUM_NOTES; m++) {
if (noteLookups[m].waveforms[t] != NULL) {
@ -698,12 +698,22 @@ void TableInitialiser::freeNotes() {
noteLookups[m].waveforms[t] = NULL;
noteLookups[m].waveformSize[t] = 0;
}
if (noteLookups[m].wavTable != NULL) {
delete[] noteLookups[m].wavTable;
noteLookups[m].wavTable = NULL;
}
}
}
initialisedMasterTune = 0.0f;
}
bool TableInitialiser::initMT32Tables(Synth *synth, PCMWaveEntry pcmWaves[128], float sampleRate, float masterTune) {
Tables::Tables() {
initialisedSampleRate = 0.0f;
initialisedMasterTune = 0.0f;
memset(&noteLookups, 0, sizeof(noteLookups));
}
bool Tables::init(Synth *synth, PCMWaveEntry *pcmWaves, float sampleRate, float masterTune) {
if (sampleRate <= 0.0f) {
synth->printDebug("Bad sampleRate (%d <= 0.0f)", sampleRate);
return false;
@ -714,6 +724,9 @@ bool TableInitialiser::initMT32Tables(Synth *synth, PCMWaveEntry pcmWaves[128],
if (initialisedSampleRate != sampleRate) {
initFiltCoeff(sampleRate);
initEnvelopes(sampleRate);
for (int key = 12; key <= 108; key++) {
initDep(&keyLookups[key - 12], (float)key);
}
}
if (initialisedSampleRate != sampleRate || initialisedMasterTune != masterTune) {
freeNotes();

101
sound/softsynth/mt32/tables.h

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004 Various contributors
/* Copyright (c) 2003-2005 Various contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
@ -33,67 +33,82 @@ const float FLOAT_LN = 2.3025850929940456840179914546844f;
// Filter settings
const int FILTERGRAN = 512;
// Amplitude of waveform generator
// FIXME: This value is the amplitude possible whilst avoiding
// overdriven values immediately after filtering when playing
// back SQ3MT.MID. Needs to be checked.
const int WGAMP = 12382;
const int MIDDLEC = 60;
const int MIDDLEA = 69; // By this I mean "A above middle C"
//FIXME:KG: may only need to do 12 to 108
//12..108 is the range allowed by note on commands, but the key can be modified by pitch keyfollow
//and adjustment for timbre pitch, so the results can be outside that range. Do move it (by octave) into
// the 12..108 range, or keep it in 0..127 range, or something else altogether?
// FIXME:KG: may only need to do 12 to 108
// 12..108 is the range allowed by note on commands, but the key can be modified by pitch keyfollow
// and adjustment for timbre pitch, so the results can be outside that range.
// Should we move it (by octave) into the 12..108 range, or keep it in 0..127 range,
// or something else altogether?
const int LOWEST_NOTE = 12;
const int HIGHEST_NOTE = 127;
const int NUM_NOTES = HIGHEST_NOTE - LOWEST_NOTE + 1; // Number of slots for note LUT
// Amplitude of waveform generator
const int WGAMP = 7168; // 8192?
class Synth;
extern Bit16s smallnoise[MAX_SAMPLE_OUTPUT];
// Some optimization stuff
extern Bit32s keytable[217];
extern Bit16s sintable[65536];
extern Bit32u lfotable[101];
extern Bit32s penvtable[16][101];
extern Bit32s filveltable[128][101];
extern Bit32s veltkeytable[5][128];
extern Bit32s pulsetable[101];
extern Bit32s ampbiastable[13][128];
extern Bit32s fbiastable[15][128];
extern float filtcoeff[FILTERGRAN][31][8];
extern Bit32s finetable[201];
extern Bit32u lfoptable[101][101];
extern Bit32s ampveltable[128][64];
extern Bit32s pwveltable[15][128];
extern Bit32s envtimetable[101];
extern Bit32s decaytimetable[101];
extern Bit32s lasttimetable[101];
extern Bit32s voltable[128];
extern float ResonInv[31];
struct NoteLookup {
Bit32u div;
Bit32u wavTable[128];
Bit32u div2;
Bit32u *wavTable;
Bit32s sawTable[101];
Bit32s fildepTable[5];
Bit32s timekeyTable[5];
int filtTable[2][201];
int nfiltTable[101][101];
Bit16s *waveforms[3];
Bit32u waveformSize[3];
};
extern NoteLookup noteLookups[NUM_NOTES];
struct KeyLookup {
Bit32s envTimeMult[5]; // For envelope time adjustment for key pressed
Bit32s envDepthMult[5];
};
class TableInitialiser {
static void initMT32ConstantTables(Synth *synth);
static File *initWave(Synth *synth, NoteLookup *noteLookup, float ampsize, float div, File *file);
static bool initNotes(Synth *synth, PCMWaveEntry pcmWaves[128], float rate, float tuning);
class Tables {
float initialisedSampleRate;
float initialisedMasterTune;
void initMT32ConstantTables(Synth *synth);
static Bit16s clampWF(Synth *synth, const char *n, float ampVal, double input);
static File *initWave(Synth *synth, NoteLookup *noteLookup, float ampsize, float div2, File *file);
bool initNotes(Synth *synth, PCMWaveEntry pcmWaves[128], float rate, float tuning);
void initEnvelopes(float sampleRate);
void initFiltCoeff(float samplerate);
public:
static bool initMT32Tables(Synth *synth, PCMWaveEntry pcmWaves[128], float sampleRate, float masterTune);
static File *initNote(Synth *synth, NoteLookup *noteLookup, float note, float rate, float tuning, PCMWaveEntry pcmWaves[128], File *file);
static void freeNotes();
// Constant LUTs
Bit32s tvfKeyfollowMult[217];
Bit32s tvfVelfollowMult[128][101];
Bit32s tvfBiasMult[15][128];
Bit32u tvaVelfollowMult[128][101];
Bit32s tvaBiasMult[13][128];
Bit16s noiseBuf[MAX_SAMPLE_OUTPUT];
Bit16s sintable[65536];
Bit32s pitchEnvVal[16][101];
Bit32s envTimeVelfollowMult[5][128];
Bit32s pwVelfollowAdd[15][128];
float resonanceFactor[31];
Bit32u lfoShift[101][101];
Bit32s pwFactor[101];
Bit32s volumeMult[101];
// LUTs varying with sample rate
Bit32u envTime[101];
Bit32u envDeltaMaxTime[101];
Bit32u envDecayTime[101];
Bit32u lfoPeriod[101];
float filtCoeff[FILTERGRAN][31][8];
// Various LUTs for each note and key
NoteLookup noteLookups[NUM_NOTES];
KeyLookup keyLookups[97];
Tables();
bool init(Synth *synth, PCMWaveEntry pcmWaves[128], float sampleRate, float masterTune);
File *initNote(Synth *synth, NoteLookup *noteLookup, float note, float rate, float tuning, PCMWaveEntry pcmWaves[128], File *file);
void freeNotes();
};
}