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volume portamento (vol porta) on D3xx and D4xx (D4 is fast version, rate * 256)

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This commit is contained in:
Adam Lederer 2024-08-23 10:39:14 -07:00
parent a08380182d
commit 310ad13916
11 changed files with 88 additions and 8 deletions
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15
src/engine/cmdStream.cpp
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@ -215,6 +215,10 @@ bool DivCSPlayer::tick() {
case DIV_CMD_HINT_VOL_SLIDE:
arg0=(short)stream.readS();
break;
case DIV_CMD_HINT_VOL_SLIDE_TARGET:
arg0=(short)stream.readS();
arg1=(short)stream.readS();
break;
case DIV_CMD_HINT_LEGATO:
arg0=(unsigned char)stream.readC();
if (arg0==0xff) {
@ -321,6 +325,11 @@ bool DivCSPlayer::tick() {
break;
case DIV_CMD_HINT_VOL_SLIDE:
chan[i].volSpeed=arg0;
chan[i].volSpeedTarget=-1;
break;
case DIV_CMD_HINT_VOL_SLIDE_TARGET:
chan[i].volSpeed=arg0;
chan[i].volSpeedTarget=arg0==0 ? -1 : arg1;
break;
case DIV_CMD_HINT_PITCH:
chan[i].pitch=arg0;
@ -356,13 +365,17 @@ bool DivCSPlayer::tick() {
if (sendVolume || chan[i].volSpeed!=0) {
chan[i].volume+=chan[i].volSpeed;
if (chan[i].volSpeedTarget!=-1 && (chan[i].volume==chan[i].volSpeedTarget || (chan[i].volume>chan[i].volSpeedTarget)==(chan[i].volSpeed>0))) {
chan[i].volume=chan[i].volSpeedTarget;
chan[i].volSpeed=0;
chan[i].volSpeedTarget=-1;
}
if (chan[i].volume<0) {
chan[i].volume=0;
}
if (chan[i].volume>chan[i].volMax) {
chan[i].volume=chan[i].volMax;
}
e->dispatchCmd(DivCommand(DIV_CMD_VOLUME,i,chan[i].volume>>8));
}