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prepare to implement stuff in cmd stream

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vol slide with target, tremolo, panbrello and pan slide
This commit is contained in:
tildearrow 2025-04-05 04:33:46 -05:00
parent a49664a3f5
commit 110562c2c4
6 changed files with 80 additions and 160 deletions
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142
src/engine/cmdStreamOps.cpp
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@ -34,7 +34,7 @@ int DivCS::getInsLength(unsigned char ins, unsigned char ext) {
case 0xca: // legato
case 0xfd: // waitc
return 2;
case 0xbe: // pan
case 0xcf: // pan
case 0xc2: // vibrato
case 0xc6: // arpeggio
case 0xc8: // vol slide
@ -48,20 +48,19 @@ int DivCS::getInsLength(unsigned char ins, unsigned char ext) {
return 0;
case 0xf0: // opt
return 4;
case 0xf2: // opt command
case 0xf7: { // cmd
// determine length from secondary
if (ext==0) return 0;
return 0;
}
case 0xf8: // callb16
case 0xf8: // call
case 0xfc: // waits
return 3;
case 0xf4: // callsym
case 0xf5: // call
case 0xf6: // callb32
case 0xf5: // calli
case 0xfa: // jmp
case 0xfb: // rate
case 0xcb: // volporta
return 5;
}
return 1;
@ -80,7 +79,6 @@ void writePackedCommandValues(SafeWriter* w, const DivCommand& c) {
case DIV_CMD_NOTE_OFF_ENV:
case DIV_CMD_ENV_RELEASE:
case DIV_CMD_INSTRUMENT:
case DIV_CMD_PANNING:
case DIV_CMD_PRE_PORTA:
case DIV_CMD_HINT_VIBRATO:
case DIV_CMD_HINT_VIBRATO_RANGE:
@ -92,11 +90,15 @@ void writePackedCommandValues(SafeWriter* w, const DivCommand& c) {
case DIV_CMD_HINT_VOL_SLIDE:
case DIV_CMD_HINT_VOL_SLIDE_TARGET:
case DIV_CMD_HINT_LEGATO:
case DIV_CMD_HINT_TREMOLO:
case DIV_CMD_HINT_PANBRELLO:
case DIV_CMD_HINT_PAN_SLIDE:
case DIV_CMD_HINT_PANNING:
w->writeC((unsigned char)c.cmd+0xb4);
break;
default:
return; // quit for now... we'll implement this later
w->writeC(0xf2); // unoptimized extended command
return;
w->writeC(0xf7);
w->writeC(c.cmd);
break;
}
@ -118,9 +120,12 @@ void writePackedCommandValues(SafeWriter* w, const DivCommand& c) {
case DIV_CMD_HINT_VIBRATO_SHAPE:
case DIV_CMD_HINT_PITCH:
case DIV_CMD_HINT_VOLUME:
case DIV_CMD_HINT_TREMOLO:
case DIV_CMD_HINT_PANBRELLO:
case DIV_CMD_HINT_PAN_SLIDE:
w->writeC(c.value);
break;
case DIV_CMD_PANNING:
case DIV_CMD_HINT_PANNING:
case DIV_CMD_HINT_VIBRATO:
case DIV_CMD_HINT_ARPEGGIO:
case DIV_CMD_HINT_PORTA:
@ -536,15 +541,11 @@ SafeWriter* DivEngine::saveCommand() {
switch (i.cmd) {
// strip away hinted/useless commands
case DIV_CMD_GET_VOLUME:
break;
case DIV_CMD_VOLUME:
break;
case DIV_CMD_PANNING:
case DIV_CMD_NOTE_PORTA:
break;
case DIV_CMD_LEGATO:
break;
case DIV_CMD_PITCH:
break;
case DIV_CMD_PRE_NOTE:
break;
default:
@ -808,119 +809,6 @@ SafeWriter* DivEngine::saveCommand() {
sortPos++;
}*/
/*
for (int i=0; i<chans; i++) {
// optimize stream
SafeWriter* oldStream=chanStream[i];
SafeReader* reader=oldStream->toReader();
chanStream[i]=new SafeWriter;
chanStream[i]->init();
while (1) {
try {
unsigned char next=reader->readC();
switch (next) {
case 0xb8: // instrument
case 0xc0: // pre porta
case 0xc3: // vibrato range
case 0xc4: // vibrato shape
case 0xc5: // pitch
case 0xc7: // volume
case 0xca: // legato
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
break;
case 0xbe: // panning
case 0xc2: // vibrato
case 0xc6: // arpeggio
case 0xc8: // vol slide
case 0xc9: // porta
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
break;
case 0xf2: { // full command (pre)
unsigned char cmd=reader->readC();
bool foundShort=false;
for (int j=0; j<16; j++) {
if (sortedCmd[j]==cmd) {
chanStream[i]->writeC(0xd0+j);
foundShort=true;
break;
}
}
if (!foundShort) {
chanStream[i]->writeC(0xf7); // full command
chanStream[i]->writeC(cmd);
}
unsigned char cmdLen=reader->readC();
logD("cmdLen: %d",cmdLen);
for (unsigned char j=0; j<cmdLen; j++) {
next=reader->readC();
chanStream[i]->writeC(next);
}
break;
}
case 0xfb: // tick rate
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
next=reader->readC();
chanStream[i]->writeC(next);
break;
case 0xfc: { // 16-bit wait
unsigned short delay=reader->readS();
bool foundShort=false;
for (int j=0; j<16; j++) {
if (sortedDelay[j]==delay) {
chanStream[i]->writeC(0xe0+j);
foundShort=true;
break;
}
}
if (!foundShort) {
chanStream[i]->writeC(next);
chanStream[i]->writeS(delay);
}
break;
}
case 0xfd: { // 8-bit wait
unsigned char delay=reader->readC();
bool foundShort=false;
for (int j=0; j<16; j++) {
if (sortedDelay[j]==delay) {
chanStream[i]->writeC(0xe0+j);
foundShort=true;
break;
}
}
if (!foundShort) {
chanStream[i]->writeC(next);
chanStream[i]->writeC(delay);
}
break;
}
default:
chanStream[i]->writeC(next);
break;
}
} catch (EndOfFileException& e) {
break;
}
}
oldStream->finish();
delete oldStream;
}*/
// write results
for (int i=0; i<chans; i++) {
chanStreamOff[i]=w->tell();