Working towards percussion support in DRO output.
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bsutherland
parent
13f671265b
commit
2ebe0a43bc
3 changed files with 105 additions and 19 deletions
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@ -64,6 +64,21 @@ static Bit32u CHANNEL_OFFSETS[15]= {
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0x108,
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};
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// bass drum uses two operators.
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// others use either modulator or carrier.
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static Bit32u PERCUSSION_OPERATORS[5][2] = {
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{ 0x10, 0x13 }, // bd
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{ 0x00, 0x14 }, // sd
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{ 0x12, 0x00 }, // tt
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{ 0x00, 0x15}, // cy
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{ 0x11, 0x00 }, // hh
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};
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static Bit32u PERCUSSION_CHANNELS[5] = {
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7, 7, 8, 8, 9
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// or 7, 8, 8, 9, 9?
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};
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INLINE void host_writed(Bit8u *off, Bit32u val) {
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off[0] = (Bit8u)(val);
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off[1] = (Bit8u)(val >> 8);
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@ -92,21 +107,48 @@ DROMultiplexer* DROMultiplexer::GetMaster() {
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return DROMultiplexer::master;
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}
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void DROMultiplexer::TwoOpMelodicNoteOn(Hiopl* opl, int inCh) {
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const ScopedLock sl(lock);
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// find a free channel and mark it as used
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char addr[16];
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int outCh = _FindFreeChannel(opl, inCh);
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_DebugOut(" <- ");
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_DebugOut(itoa((int)opl, addr, 16));
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_DebugOut(" ");
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for (int i = 0; i < MELODIC_CHANNELS; i++) {
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Hiopl* tmpOpl = channels[i].opl;
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_DebugOut(NULL == tmpOpl ? "-" : tmpOpl->GetState(channels[i].ch));
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}
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_DebugOut("\n");
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void DROMultiplexer::_CopyOplPercussionSettings(Hiopl* opl, int pIdx) {
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// input channel 1 is as good as any..
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int op1Off = opl->_GetOffset(1, 1);
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int op2Off = opl->_GetOffset(1, 2);
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Bit32u inAddr;
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Bit32u outAddr;
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Bit32u* outOff = PERCUSSION_OPERATORS[pIdx];
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// waveform select
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int base = 0xe0;
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if (outOff[0]) {
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inAddr = base + op1Off;
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outAddr = base + outOff[0];
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_CaptureRegWriteWithDelay(outAddr, opl->_ReadReg(inAddr));
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}
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if (outOff[1]) {
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inAddr = base + op2Off;
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outAddr = base + outOff[1];
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_CaptureRegWrite(outAddr, opl->_ReadReg(inAddr));
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}
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// other operator settings
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for (base = 0x20; base <= 0x80; base += 0x20) {
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if (outOff[0]) {
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inAddr = base + op1Off;
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outAddr = base + outOff[0];
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_CaptureRegWrite(outAddr, opl->_ReadReg(inAddr));
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}
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if (outOff[1]) {
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inAddr = base + op2Off;
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outAddr = base + outOff[1];
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_CaptureRegWrite(outAddr, opl->_ReadReg(inAddr));
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}
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}
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// channel wide settings
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int chInOff = opl->_GetOffset(1);
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inAddr = 0xc0 + chInOff;
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outAddr = 0xc0 + PERCUSSION_CHANNELS[pIdx];
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_CaptureRegWrite(outAddr, 0x30 | opl->_ReadReg(inAddr));
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}
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void DROMultiplexer::_CopyOplChannelSettings(Hiopl* opl, int inCh, int outCh) {
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// read all instrument settings and write them all to the file
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int op1Off = opl->_GetOffset(inCh, 1);
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int op2Off = opl->_GetOffset(inCh, 2);
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@ -135,14 +177,36 @@ void DROMultiplexer::TwoOpMelodicNoteOn(Hiopl* opl, int inCh) {
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inAddr = 0xc0 + chInOff;
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outAddr = 0xc0 + CHANNEL_OFFSETS[outCh];
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_CaptureRegWrite(outAddr, 0x30 | opl->_ReadReg(inAddr));
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}
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void DROMultiplexer::TwoOpMelodicNoteOn(Hiopl* opl, int inCh) {
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const ScopedLock sl(lock);
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// find a free channel and mark it as used
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char addr[16];
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int outCh = _FindFreeChannel(opl, inCh);
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_DebugOut(" <- ");
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_DebugOut(itoa((int)opl, addr, 16));
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_DebugOut(" ");
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for (int i = 0; i < MELODIC_CHANNELS; i++) {
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Hiopl* tmpOpl = channels[i].opl;
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_DebugOut(NULL == tmpOpl ? "-" : tmpOpl->GetState(channels[i].ch));
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}
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//_DebugOut("\n");
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_CopyOplChannelSettings(opl, inCh, outCh);
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// note frequency
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inAddr = 0xa0 + chInOff;
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outAddr = 0xa0 + CHANNEL_OFFSETS[outCh];
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int chInOff = opl->_GetOffset(inCh);
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int inAddr = 0xa0 + chInOff;
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int outAddr = 0xa0 + CHANNEL_OFFSETS[outCh];
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_CaptureRegWrite(outAddr, opl->_ReadReg(inAddr));
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_DebugOut(itoa(opl->_ReadReg(inAddr), addr, 16));
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// note-on
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inAddr = 0xb0 + chInOff;
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outAddr = 0xb0 + CHANNEL_OFFSETS[outCh];
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_CaptureRegWrite(outAddr, opl->_ReadReg(inAddr));
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_DebugOut(itoa(opl->_ReadReg(inAddr), addr, 16));
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_DebugOut("\n");
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}
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void DROMultiplexer::TwoOpMelodicNoteOff(Hiopl* opl, int ch) {
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@ -188,9 +252,17 @@ int DROMultiplexer::_FindFreeChannel(Hiopl* opl, int inCh) {
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return 0;
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}
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void DROMultiplexer::PercussionHit(Hiopl* opl) {
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void DROMultiplexer::PercussionChange(Hiopl* opl, int pIdx) {
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const ScopedLock sl(lock);
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_CopyOplPercussionSettings(opl, pIdx);
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Bit8u val = opl->_ReadReg(0xbd);
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Bit8u masked = 0x1f & val;
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if (0 == masked) { // note-off
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// TODO: clear the correct bit only
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_CaptureRegWriteWithDelay(0xbd, val & 0xe0);
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} else { // note-on
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_CaptureRegWriteWithDelay(0xbd, OxBD | masked);
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}
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}
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void DROMultiplexer::InitCaptureVariables() {
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@ -203,6 +275,7 @@ void DROMultiplexer::InitCaptureVariables() {
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channels[i].opl = NULL;
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channels[i].ch = -1;
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}
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OxBD = 0x0;
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}
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bool DROMultiplexer::StartCapture(const char* filepath, Hiopl *opl) {
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@ -230,6 +303,7 @@ bool DROMultiplexer::StartCapture(const char* filepath, Hiopl *opl) {
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_CaptureRegWrite(i, opl->_ReadReg(i));
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}
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_CaptureRegWrite(0xbd, opl->_ReadReg(0xbd));
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OxBD = opl->_ReadReg(0xbd);
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for (Bit8u i = 0xc0; i <= 0xc8; i++) {
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_CaptureRegWrite(i, opl->_ReadReg(i) | 0x30); // enable L + R channels
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}
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@ -279,6 +353,9 @@ void DROMultiplexer::_CaptureRegWrite(Bit32u reg, Bit8u value) {
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regAndVal[1] = value;
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fwrite(regAndVal, 1, 2, captureHandle);
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captureLengthBytes += 2;
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if (0xbd == reg) {
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OxBD = value;
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}
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}
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void DROMultiplexer::_CaptureRegWriteWithDelay(Bit32u reg, Bit8u value) {
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@ -13,7 +13,7 @@ public:
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void TwoOpMelodicNoteOn(Hiopl* opl, int ch);
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void TwoOpMelodicNoteOff(Hiopl* opl, int ch);
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void PercussionHit(Hiopl* opl);
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void PercussionChange(Hiopl* opl, int perc);
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void InitCaptureVariables();
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bool IsAnInstanceRecording();
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@ -28,8 +28,11 @@ private:
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void _CaptureRegWrite(Bit32u reg, Bit8u value);
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void _CaptureOpl3Enable();
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int _FindFreeChannel(Hiopl* opl, int inCh);
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void _CopyOplChannelSettings(Hiopl* opl, int inCh, int outCh);
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void _CopyOplPercussionSettings(Hiopl* opl, int pIdx);
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void _DebugOut(const char* str);
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static DROMultiplexer* master;
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Bit8u OxBD; // cached value of percussion register
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FILE* captureHandle;
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Bit64s captureStart;
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@ -731,6 +731,9 @@ void JuceOplvstiAudioProcessor::processBlock (AudioSampleBuffer& buffer, MidiBuf
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Opl->SetFrequency(i, noteHz, false);
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}
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Opl->HitPercussion(DRUM_INDEX[perc - 1]);
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if (isAnyInstanceRecording()) {
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dro->GetMaster()->PercussionChange(Opl, perc);
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}
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} else {
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if (!available_channels.empty())
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{
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@ -779,6 +782,9 @@ void JuceOplvstiAudioProcessor::processBlock (AudioSampleBuffer& buffer, MidiBuf
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else if (midi_message.isNoteOff()) {
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if (perc > 0) {
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Opl->ReleasePercussion();
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if (isAnyInstanceRecording()) {
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dro->GetMaster()->PercussionChange(Opl, perc-1);
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}
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}
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else {
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int n = midi_message.getNoteNumber();
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