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add effects for rear panning

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This commit is contained in:
tildearrow 2023-01-05 03:08:57 -05:00
parent 71e40dc015
commit 707bbb54ea
9 changed files with 88 additions and 8 deletions
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32
src/engine/platform/opl.cpp
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@ -980,7 +980,7 @@ int DivPlatformOPL::dispatch(DivCommand c) {
if (oplType!=3) break;
if (c.chan==adpcmChan) break;
chan[c.chan].pan&=~3;
if (c.value==0 && c.value2==0) {
if (c.value==0 && c.value2==0 && compatPan) {
chan[c.chan].pan|=3;
} else {
chan[c.chan].pan|=(c.value>0)|((c.value2>0)<<1);
@ -999,6 +999,33 @@ int DivPlatformOPL::dispatch(DivCommand c) {
}
break;
}
case DIV_CMD_SURROUND_PANNING: {
if (oplType!=3) break;
if (c.chan==adpcmChan) break;
if (c.value==2) {
chan[c.chan].pan&=3;
if (c.value2>0) chan[c.chan].pan|=4;
} else if (c.value==3) {
if (c.value2>0) chan[c.chan].pan|=8;
} else {
break;
}
int ops=(slots[3][c.chan]!=255 && chan[c.chan].state.ops==4 && oplType==3)?4:2;
if (isMuted[c.chan]) {
rWrite(chanMap[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&1)|(chan[c.chan].state.fb<<1));
if (ops==4) {
rWrite(chanMap[c.chan+1]+ADDR_LR_FB_ALG,((chan[c.chan].state.alg>>1)&1)|(chan[c.chan].state.fb<<1));
}
} else {
rWrite(chanMap[c.chan]+ADDR_LR_FB_ALG,(chan[c.chan].state.alg&1)|(chan[c.chan].state.fb<<1)|((chan[c.chan].pan&15)<<4));
if (ops==4) {
rWrite(chanMap[c.chan+1]+ADDR_LR_FB_ALG,((chan[c.chan].state.alg>>1)&1)|(chan[c.chan].state.fb<<1)|((chan[c.chan].pan&15)<<4));
}
}
break;
}
case DIV_CMD_PITCH: {
if (c.chan==adpcmChan) {
if (!chan[c.chan].furnacePCM) break;
@ -1705,6 +1732,8 @@ void DivPlatformOPL::setFlags(const DivConfig& flags) {
rate=chipClock/36;
}*/
compatPan=false;
switch (chipType) {
default:
case 1: case 2: case 8950:
@ -1753,6 +1782,7 @@ void DivPlatformOPL::setFlags(const DivConfig& flags) {
CHECK_CUSTOM_CLOCK;
rate=chipClock/288;
chipRateBase=rate;
compatPan=flags.getBool("compatPan",false);
break;
case 4:
switch (flags.getInt("clockSel",0)) {