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Diffstat (limited to 'engines/sci/sfx/softseq/mt32/synth.cpp')
-rw-r--r--engines/sci/sfx/softseq/mt32/synth.cpp1199
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diff --git a/engines/sci/sfx/softseq/mt32/synth.cpp b/engines/sci/sfx/softseq/mt32/synth.cpp
deleted file mode 100644
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--- a/engines/sci/sfx/softseq/mt32/synth.cpp
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@@ -1,1199 +0,0 @@
-/* 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
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include <math.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "mt32emu.h"
-
-#ifdef MACOSX
-// Older versions of Mac OS X didn't supply a powf function. To ensure
-// binary compatibility, we force using pow instead of powf (the only
-// potential drawback is that it might be a little bit slower).
-#define powf pow
-#endif
-
-namespace MT32Emu {
-
-const int MAX_SYSEX_SIZE = 512;
-
-const ControlROMMap ControlROMMaps[5] = {
- // ID IDc IDbytes PCMmap PCMc tmbrA tmbrAO, tmbrB tmbrBO, tmbrR trC rhythm rhyC rsrv panpot prog
- {0x4014, 22, "\000 ver1.04 14 July 87 ", 0x3000, 128, 0x8000, 0x0000, 0xC000, 0x4000, 0x3200, 30, 0x73A6, 85, 0x57C7, 0x57D0, 0x57E2}, // MT-32 revision 0
- {0x4014, 22, "\000 ver1.06 31 Aug, 87 ", 0x3000, 128, 0x8000, 0x0000, 0xC000, 0x4000, 0x3200, 30, 0x7414, 85, 0x57D9, 0x57E2, 0x57F4}, // MT-32 revision 0
- {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;
-
- hist2_ptr = hist1_ptr + 1; // next history
-
- // 1st number of coefficients array is overall input scale factor, or filter gain
- output = input * (*coef_ptr++);
-
- output = output - *hist1_ptr * (*coef_ptr++);
- new_hist = output - *hist2_ptr * (*coef_ptr++); // poles
-
- output = new_hist + *hist1_ptr * (*coef_ptr++);
- output = output + *hist2_ptr * (*coef_ptr++); // zeros
-
- *hist2_ptr++ = *hist1_ptr;
- *hist1_ptr++ = new_hist;
- hist1_ptr++;
- hist2_ptr++;
-
- // i = 1
- output = output - *hist1_ptr * (*coef_ptr++);
- new_hist = output - *hist2_ptr * (*coef_ptr++); // poles
-
- output = new_hist + *hist1_ptr * (*coef_ptr++);
- output = output + *hist2_ptr * (*coef_ptr++); // zeros
-
- *hist2_ptr++ = *hist1_ptr;
- *hist1_ptr++ = new_hist;
-
- return(output);
-}
-
-Bit8u Synth::calcSysexChecksum(const Bit8u *data, Bit32u len, Bit8u checksum) {
- for (unsigned int i = 0; i < len; i++) {
- checksum = checksum + data[i];
- }
- checksum = checksum & 0x7f;
- if (checksum)
- checksum = 0x80 - checksum;
- return checksum;
-}
-
-Synth::Synth() {
- isOpen = false;
- reverbModel = NULL;
- partialManager = NULL;
- memset(parts, 0, sizeof(parts));
-}
-
-Synth::~Synth() {
- close(); // Make sure we're closed and everything is freed
-}
-
-int Synth::report(ReportType type, const void *data) {
- if (myProp.report != NULL) {
- return myProp.report(myProp.userData, type, data);
- }
- return 0;
-}
-
-void Synth::printDebug(const char *fmt, ...) {
- va_list ap;
- va_start(ap, fmt);
- if (myProp.printDebug != NULL) {
- myProp.printDebug(myProp.userData, fmt, ap);
- } else {
- vprintf(fmt, ap);
- printf("\n");
- }
- va_end(ap);
-}
-
-void Synth::initReverb(Bit8u newRevMode, Bit8u newRevTime, Bit8u newRevLevel) {
- // FIXME:KG: I don't think it's necessary to recreate the reverbModel... Just set the parameters
- if (reverbModel != NULL)
- delete reverbModel;
- reverbModel = new revmodel();
-
- switch (newRevMode) {
- case 0:
- reverbModel->setroomsize(.1f);
- reverbModel->setdamp(.75f);
- break;
- case 1:
- reverbModel->setroomsize(.5f);
- reverbModel->setdamp(.5f);
- break;
- case 2:
- reverbModel->setroomsize(.5f);
- reverbModel->setdamp(.1f);
- break;
- case 3:
- reverbModel->setroomsize(1.0f);
- reverbModel->setdamp(.75f);
- break;
- default:
- reverbModel->setroomsize(.1f);
- reverbModel->setdamp(.5f);
- break;
- }
- reverbModel->setdry(1);
- reverbModel->setwet((float)newRevLevel / 8.0f);
- reverbModel->setwidth((float)newRevTime / 8.0f);
-}
-
-File *Synth::openFile(const char *filename, File::OpenMode mode) {
- if (myProp.openFile != NULL) {
- return myProp.openFile(myProp.userData, filename, mode);
- }
- char pathBuf[2048];
- if (myProp.baseDir != NULL) {
- strcpy(&pathBuf[0], myProp.baseDir);
- strcat(&pathBuf[0], filename);
- filename = pathBuf;
- }
- ANSIFile *file = new ANSIFile();
- if (!file->open(filename, mode)) {
- delete file;
- return NULL;
- }
- return file;
-}
-
-void Synth::closeFile(File *file) {
- if (myProp.closeFile != NULL) {
- myProp.closeFile(myProp.userData, file);
- } else {
- file->close();
- delete file;
- }
-}
-
-bool Synth::loadPreset(File *file) {
- bool inSys = false;
- Bit8u sysexBuf[MAX_SYSEX_SIZE];
- Bit16u syslen = 0;
- bool rc = true;
- for (;;) {
- Bit8u c;
- if (!file->readBit8u(&c)) {
- if (!file->isEOF()) {
- rc = false;
- }
- break;
- }
- sysexBuf[syslen] = c;
- if (inSys) {
- syslen++;
- if (c == 0xF7) {
- playSysex(&sysexBuf[0], syslen);
- inSys = false;
- syslen = 0;
- } else if (syslen == MAX_SYSEX_SIZE) {
- printDebug("MAX_SYSEX_SIZE (%d) exceeded while processing preset, ignoring message", MAX_SYSEX_SIZE);
- inSys = false;
- syslen = 0;
- }
- } else if (c == 0xF0) {
- syslen++;
- inSys = true;
- }
- }
- return rc;
-}
-
-bool Synth::loadControlROM(const char *filename) {
- File *file = openFile(filename, File::OpenMode_read); // ROM File
- if (file == NULL) {
- return false;
- }
- bool rc = (file->read(controlROMData, CONTROL_ROM_SIZE) == CONTROL_ROM_SIZE);
-
- closeFile(file);
- 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) {
- File *file = openFile(filename, File::OpenMode_read); // ROM File
- if (file == NULL) {
- return false;
- }
- bool rc = true;
- int i;
- for (i = 0; i < pcmROMSize; i++) {
- Bit8u s;
- if (!file->readBit8u(&s)) {
- if (!file->isEOF()) {
- rc = false;
- }
- break;
- }
- Bit8u c;
- if (!file->readBit8u(&c)) {
- if (!file->isEOF()) {
- rc = false;
- } else {
- printDebug("PCM ROM file has an odd number of bytes! Ignoring last");
- }
- break;
- }
-
- 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;
- for (u = 0; u < 15; u++) {
- if (order[u] < 8)
- bit = (s >> (7 - order[u])) & 0x1;
- else
- bit = (c >> (7 - (order[u] - 8))) & 0x1;
- e = e | (short)(bit << (15 - u));
- }
-
- /*
- //Bit16s e = ( ((s & 0x7f) << 4) | ((c & 0x40) << 6) | ((s & 0x80) << 6) | ((c & 0x3f))) << 2;
- if (e<0)
- e = -32767 - e;
- int ut = abs(e);
- int dif = 0x7fff - ut;
- x = exp(((float)((float)0x8000-(float)dif) / (float)0x1000));
- e = (int)((float)e * (x/3200));
- */
-
- // File is companded (dB?), convert to linear PCM
- // MINDB = -96
- // MAXDB = -15
- float testval;
- testval = (float)((~e) & 0x7fff);
- testval = -(testval / 400.00f);
- //testval = -(testval / 341.32291666666666666666666666667);
- float vol = powf(8, testval / 20) * 32767.0f;
-
- if (e > 0)
- vol = -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;
-}
-
-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;
- // 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);
- 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;
-}
-
-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);
- 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) {
- if (memPos + 58 >= memLen) {
- return false;
- }
- memcpy(&timbre->partial[t], mem + memPos, 58);
- memPos += 58;
- }
- }
- return true;
-}
-
-bool Synth::initRhythmTimbres(Bit16u mapAddress, Bit16u count) {
- const Bit8u *drumMap = &controlROMData[mapAddress];
- int timbreNum = 192;
- for (Bit16u i = 0; i < count * 2; i += 2) {
- Bit16u address = (drumMap[i + 1] << 8) | drumMap[i];
- /*
- // 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;
-}
-
-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];
- 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) {
- if (isOpen)
- return false;
-
- myProp = useProp;
- if (useProp.baseDir != NULL) {
- myProp.baseDir = new char[strlen(useProp.baseDir) + 1];
- strcpy(myProp.baseDir, useProp.baseDir);
- }
-
- // This is to help detect bugs
- memset(&mt32ram, '?', sizeof(mt32ram));
-
- printDebug("Loading Control ROM");
- if (!loadControlROM("CM32L_CONTROL.ROM")) {
- if (!loadControlROM("MT32_CONTROL.ROM")) {
- printDebug("Init Error - Missing or invalid MT32_CONTROL.ROM");
- report(ReportType_errorControlROM, NULL);
- 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, NULL);
- return false;
- }
- }
-
- printDebug("Initialising Timbre Bank A");
- if (!initTimbres(controlROMMap->timbreAMap, controlROMMap->timbreAOffset, 0)) {
- return false;
- }
-
- 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(controlROMMap->pcmTable, controlROMMap->pcmCount);
-
- printDebug("Initialising Rhythm Temp");
- memcpy(mt32ram.rhythmSettings, &controlROMData[controlROMMap->rhythmSettings], controlROMMap->rhythmSettingsCount * 4);
-
- printDebug("Initialising Patches");
- for (Bit8u i = 0; i < 128; i++) {
- PatchParam *patch = &mt32ram.patches[i];
- patch->timbreGroup = i / 64;
- patch->timbreNum = i % 64;
- patch->keyShift = 24;
- patch->fineTune = 50;
- patch->benderRange = 12;
- patch->assignMode = 0;
- patch->reverbSwitch = 1;
- patch->dummy = 0;
- }
-
- printDebug("Initialising System");
- // The MT-32 manual claims that "Standard pitch" is 442Hz.
- mt32ram.system.masterTune = 0x4A; // Confirmed on CM-64
- 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"
- // and pressing "PART button 1" on the real MT-32's frontpanel.
- // The channel assignment is then {0, 1, 2, 3, 4, 5, 6, 7, 9}
- mt32ram.system.chanAssign[i] = i + 1;
- }
- 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[controlROMMap->panSettings + i];
- memset(mt32ram.patchSettings[i].dummyv, 0, sizeof(mt32ram.patchSettings[i].dummyv));
- parts[i] = new Part(this, i);
- parts[i]->setProgram(controlROMData[controlROMMap->programSettings + i]);
- }
- parts[8] = new RhythmPart(this, 8);
-
- // For resetting mt32 mid-execution
- mt32default = mt32ram;
-
- iirFilter = &iir_filter_normal;
-
-#ifdef MT32EMU_HAVE_X86
- bool availableSSE = DetectSIMD();
- bool available3DNow = Detect3DNow();
-
- if (availableSSE)
- report(ReportType_availableSSE, NULL);
- if (available3DNow)
- report(ReportType_available3DNow, NULL);
-
- if (available3DNow) {
- printDebug("Detected and using SIMD (AMD 3DNow) extensions");
- iirFilter = &iir_filter_3dnow;
- report(ReportType_using3DNow, NULL);
- } else if (availableSSE) {
- printDebug("Detected and using SIMD (Intel SSE) extensions");
- iirFilter = &iir_filter_sse;
- report(ReportType_usingSSE, NULL);
- }
-#endif
-
- isOpen = true;
- isEnabled = false;
-
- printDebug("*** Initialisation complete ***");
- return true;
-}
-
-void Synth::close(void) {
- if (!isOpen)
- return;
-
- tables.freeNotes();
- if (partialManager != NULL) {
- delete partialManager;
- partialManager = NULL;
- }
-
- if (reverbModel != NULL) {
- delete reverbModel;
- reverbModel = NULL;
- }
-
- for (int i = 0; i < 9; i++) {
- if (parts[i] != NULL) {
- delete parts[i];
- parts[i] = NULL;
- }
- }
- if (myProp.baseDir != NULL) {
- delete myProp.baseDir;
- myProp.baseDir = NULL;
- }
-
- delete[] pcmWaves;
- delete[] pcmROMData;
- isOpen = false;
-}
-
-void Synth::playMsg(Bit32u msg) {
- // 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);
-
- char part = chantable[chan];
- if (part < 0 || part > 8) {
- printDebug("Play msg on unreg chan %d (%d): code=0x%01x, vel=%d", chan, part, code, velocity);
- return;
- }
- playMsgOnPart(part, code, note, velocity);
-}
-
-void Synth::playMsgOnPart(unsigned char part, unsigned char code, unsigned char note, unsigned char velocity) {
- Bit32u bend;
-
- //printDebug("Synth::playMsg(0x%02x)",msg);
- switch (code) {
- case 0x8:
- //printDebug("Note OFF - Part %d", part);
- // The MT-32 ignores velocity for note off
- parts[part]->stopNote(note);
- break;
- case 0x9:
- //printDebug("Note ON - Part %d, Note %d Vel %d", part, note, velocity);
- if (velocity == 0) {
- // MIDI defines note-on with velocity 0 as being the same as note-off with velocity 40
- parts[part]->stopNote(note);
- } else {
- parts[part]->playNote(note, velocity);
- }
- break;
- case 0xB: // Control change
- switch (note) {
- case 0x01: // Modulation
- //printDebug("Modulation: %d", velocity);
- parts[part]->setModulation(velocity);
- break;
- case 0x07: // Set volume
- //printDebug("Volume set: %d", velocity);
- parts[part]->setVolume(velocity);
- break;
- case 0x0A: // Pan
- //printDebug("Pan set: %d", velocity);
- parts[part]->setPan(velocity);
- break;
- case 0x0B:
- //printDebug("Expression set: %d", velocity);
- parts[part]->setExpression(velocity);
- break;
- 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");
- //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]->allNotesOff();
- break;
-
- default:
- printDebug("Unknown MIDI Control code: 0x%02x - vel 0x%02x", note, velocity);
- break;
- }
-
- break;
- case 0xC: // Program change
- //printDebug("Program change %01x", note);
- parts[part]->setProgram(note);
- break;
- case 0xE: // Pitch bender
- bend = (velocity << 7) | (note);
- //printDebug("Pitch bender %02x", bend);
- parts[part]->setBend(bend);
- break;
- default:
- printDebug("Unknown Midi code: 0x%01x - %02x - %02x", code, note, velocity);
- break;
- }
-
- //midiOutShortMsg(m_out, msg);
-}
-
-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)");
- return;
- }
- // 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, endPos - 1);
-}
-
-void Synth::playSysexWithoutFraming(const Bit8u *sysex, Bit32u len) {
- if (len < 4) {
- printDebug("playSysexWithoutFraming: Message is too short (%d bytes)!", len);
- return;
- }
- 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] == 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] != 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;
- }
- playSysexWithoutHeader(sysex[1], sysex[3], sysex + 4, len - 4);
-}
-
-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);
- return;
- }
- if (len < 4) {
- printDebug("playSysexWithoutHeader: Message is too short (%d bytes)!", len);
- return;
- }
- unsigned char checksum = calcSysexChecksum(sysex, len - 1, 0);
- if (checksum != sysex[len - 1]) {
- printDebug("playSysexWithoutHeader: Message checksum is incorrect (provided: %02x, expected: %02x)!", sysex[len - 1], checksum);
- 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 = MT32EMU_MEMADDR(addr);
- sysex += 3;
- len -= 3;
- //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, 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)");
- offset = 0;
- } else if (chantable[device] == 8) {
- printDebug(" (Channel mapped to rhythm... 0 offset)");
- offset = 0;
- } else {
- offset = chantable[device] * sizeof(MemParams::PatchTemp);
- printDebug(" (Setting extra offset to %d)", offset);
- }
- 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)");
- offset = 0;
- } else if (chantable[device] == 8) {
- printDebug(" (Channel mapped to rhythm... 0 offset)");
- offset = 0;
- } else {
- offset = chantable[device] * sizeof(TimbreParam);
- printDebug(" (Setting extra offset to %d)", offset);
- }
- addr += MT32EMU_MEMADDR(0x040000) - MT32EMU_MEMADDR(0x020000) + offset;
- } else {
- printDebug("PlaySysexWithoutHeader: Invalid channel %d address 0x%06x", device, MT32EMU_SYSEXMEMADDR(addr));
- 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];
- }
- //printDebug("Patch temp: Patch %d, offset %x, len %d", off/16, off % 16, len);
-
- 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), outlevel=%d", first, last, off, off + len, i, absTimbreNum, timbreName, mt32ram.patchSettings[i].outlevel);
- if (parts[i] != NULL) {
- 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();
- }
- }
- break;
- case MR_RhythmTemp:
- for (unsigned int m = 0; m < len; m++)
- ((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) {
- memcpy(timbreName, mt32ram.timbres[128 + timbreNum].timbre.common.name, 10);
- timbreName[10] = 0;
- } else {
- strcpy(timbreName, "[None]");
- }
- 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();
- }
- break;
- case MR_TimbreTemp:
- for (unsigned int m = 0; m < len; m++)
- ((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)", first, last, off, off + len, i, instrumentName);
- if (parts[i] != NULL) {
- parts[i]->refresh();
- }
- }
- break;
- case MR_Patches:
- for (unsigned int m = 0; m < len; m++)
- ((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", 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.
- /*
- for (int part = 0; part < 8; part++) {
- if (parts[part] != NULL) {
- int partPatchAbsTimbreNum = mt32ram.patchSettings[part].patch.timbreGroup * 64 + mt32ram.patchSettings[part].patch.timbreNum;
- if (parts[part]->getAbsTimbreNum() == patchAbsTimbreNum) {
- parts[part]->setPatch(patch);
- parts[part]->RefreshPatch();
- }
- }
- }
- */
- }
- break;
- case MR_Timbres:
- // Timbres
- first += 128;
- last += 128;
- for (unsigned int m = 0; m < len; m++)
- ((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\"", 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++) {
- if (parts[part] != NULL) {
- parts[part]->refreshTimbre(i);
- }
- }
- }
- break;
- case MR_System:
- for (unsigned int m = 0; m < len; m++)
- ((Bit8u *)&mt32ram.system)[m + off] = data[m];
-
- report(ReportType_devReconfig, NULL);
-
- printDebug("WRITE-SYSTEM:");
- refreshSystem();
- break;
- case MR_Display:
- char buf[MAX_SYSEX_SIZE];
- memcpy(&buf, &data[0], len);
- buf[len] = 0;
- printDebug("WRITE-LCD: %s", buf);
- report(ReportType_lcdMessage, buf);
- break;
- case MR_Reset:
- printDebug("RESET");
- report(ReportType_devReset, NULL);
- partialManager->deactivateAll();
- mt32ram = mt32default;
- for (int i = 0; i < 9; i++) {
- parts[i]->refresh();
- }
- isEnabled = false;
- break;
- }
-}
-
-bool Synth::refreshSystem() {
- 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]->allSoundOff();
- } else {
- chantable[(int)mt32ram.system.chanAssign[i]] = (char)i;
- }
- }
- //FIXME:KG: This is just an educated guess.
- // The LAPC-I documentation claims a range of 427.5Hz-452.6Hz (similar to what we have here)
- // The MT-32 documentation claims a range of 432.1Hz-457.6Hz
- masterTune = 440.0f * powf(2.0f, (mt32ram.system.masterTune - 64.0f) / (128.0f * 12.0f));
- printDebug(" Master Tune: %f", masterTune);
- printDebug(" Reverb: mode=%d, time=%d, level=%d", mt32ram.system.reverbMode, mt32ram.system.reverbTime, mt32ram.system.reverbLevel);
- report(ReportType_newReverbMode, &mt32ram.system.reverbMode);
- report(ReportType_newReverbTime, &mt32ram.system.reverbTime);
- report(ReportType_newReverbLevel, &mt32ram.system.reverbLevel);
-
- if (myProp.useDefaultReverb) {
- initReverb(mt32ram.system.reverbMode, mt32ram.system.reverbTime, mt32ram.system.reverbLevel);
- } else {
- initReverb(myProp.reverbType, myProp.reverbTime, mt32ram.system.reverbLevel);
- }
-
- Bit8u *rset = mt32ram.system.reserveSettings;
- printDebug(" Partial reserve: 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]);
- int pr = partialManager->setReserve(rset);
- if (pr != 32)
- printDebug(" (Partial Reserve Table with less than 32 partials reserved!)");
- 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 * 32767 / 100);
- if (!tables.init(this, pcmWaves, (float)myProp.sampleRate, masterTune)) {
- report(ReportType_errorSampleRate, NULL);
- return false;
- }
- return true;
-}
-
-bool Synth::dumpTimbre(File *file, const TimbreParam *timbre, Bit32u address) {
- // Sysex header
- if (!file->writeBit8u(0xF0))
- return false;
- if (!file->writeBit8u(0x41))
- return false;
- if (!file->writeBit8u(0x10))
- return false;
- if (!file->writeBit8u(0x16))
- return false;
- if (!file->writeBit8u(0x12))
- return false;
-
- char lsb = (char)(address & 0x7f);
- char isb = (char)((address >> 7) & 0x7f);
- char msb = (char)(((address >> 14) & 0x7f) | 0x08);
-
- //Address
- if (!file->writeBit8u(msb))
- return false;
- if (!file->writeBit8u(isb))
- return false;
- if (!file->writeBit8u(lsb))
- return false;
-
- //Data
- if (file->write(timbre, 246) != 246)
- return false;
-
- //Checksum
- unsigned char checksum = calcSysexChecksum((const Bit8u *)timbre, 246, msb + isb + lsb);
- if (!file->writeBit8u(checksum))
- return false;
-
- //End of sysex
- if (!file->writeBit8u(0xF7))
- return false;
- return true;
-}
-
-int Synth::dumpTimbres(const char *filename, int start, int len) {
- File *file = openFile(filename, File::OpenMode_write);
- if (file == NULL)
- return -1;
-
- for (int timbreNum = start; timbreNum < start + len; timbreNum++) {
- int useaddr = (timbreNum - start) * 256;
- TimbreParam *timbre = &mt32ram.timbres[timbreNum].timbre;
- if (!dumpTimbre(file, timbre, useaddr))
- break;
- }
- closeFile(file);
- return 0;
-}
-
-void ProduceOutput1(Bit16s *useBuf, Bit16s *stream, Bit32u len, Bit16s volume) {
-#if MT32EMU_USE_MMX > 2
- //FIXME:KG: This appears to introduce crackle
- int donelen = i386_produceOutput1(useBuf, stream, len, volume);
- len -= donelen;
- stream += donelen * 2;
- useBuf += donelen * 2;
-#endif
- int end = len * 2;
- while (end--) {
- *stream = *stream + (Bit16s)(((Bit32s)*useBuf++ * (Bit32s)volume)>>15);
- stream++;
- }
-}
-
-void Synth::render(Bit16s *stream, Bit32u len) {
- memset(stream, 0, len * sizeof (Bit16s) * 2);
- if (!isEnabled)
- return;
- while (len > 0) {
- Bit32u thisLen = len > MAX_SAMPLE_OUTPUT ? MAX_SAMPLE_OUTPUT : len;
- doRender(stream, thisLen);
- len -= thisLen;
- stream += 2 * thisLen;
- }
-}
-
-void Synth::doRender(Bit16s *stream, Bit32u len) {
- partialManager->ageAll();
-
- if (myProp.useReverb) {
- 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);
- }
- }
- }
- 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)) {
- if (partialManager->produceOutput(i, &tmpBuffer[0], len)) {
- ProduceOutput1(&tmpBuffer[0], stream, len, masterVolume);
- }
- }
- }
- } else {
- for (unsigned int i = 0; i < MT32EMU_MAX_PARTIALS; i++) {
- if (partialManager->produceOutput(i, &tmpBuffer[0], len))
- ProduceOutput1(&tmpBuffer[0], stream, len, masterVolume);
- }
- }
-
- partialManager->clearAlreadyOutputed();
-
-#if MT32EMU_MONITOR_PARTIALS == 1
- samplepos += len;
- if (samplepos > myProp.SampleRate * 5) {
- samplepos = 0;
- int partialUsage[9];
- partialManager->GetPerPartPartialUsage(partialUsage);
- printDebug("1:%02d 2:%02d 3:%02d 4:%02d 5:%02d 6:%02d 7:%02d 8:%02d", partialUsage[0], partialUsage[1], partialUsage[2], partialUsage[3], partialUsage[4], partialUsage[5], partialUsage[6], partialUsage[7]);
- printDebug("Rhythm: %02d TOTAL: %02d", partialUsage[8], MT32EMU_MAX_PARTIALS - partialManager->GetFreePartialCount());
- }
-#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];
-}
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 23:51:15 +0000