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change chan osc range - PLEASE READ

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as of now the range is ~32768, either from -16384 to 16383, or 0 to 32767.
it previously was -32768 to 32767 (~65536).

this change was made to better suit chips that only output a positive value.
if you are working on a new chip, update your code and shift right by one if necessary.
This commit is contained in:
tildearrow 2023-06-16 17:30:11 -05:00
parent ad9981fdea
commit 29dfeccfe7
48 changed files with 126 additions and 129 deletions
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16
src/engine/platform/ym2610.cpp
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@ -333,19 +333,19 @@ void DivPlatformYM2610::acquire_combo(short** buf, size_t len) {
for (int i=0; i<psgChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[bchOffs[i]];
oscBuf[i]->data[oscBuf[i]->needle++]=fm_nuked.ch_out[bchOffs[i]]>>1;
}
ssge->get_last_out(ssgOut);
for (int i=psgChanOffs; i<adpcmAChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs];
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs]>>1;
}
for (int i=adpcmAChanOffs; i<adpcmBChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1);
oscBuf[i]->data[oscBuf[i]->needle++]=(adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1))>>1;
}
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=(abe->get_last_out(0)+abe->get_last_out(1))>>1;
}
}
@ -404,19 +404,19 @@ void DivPlatformYM2610::acquire_ymfm(short** buf, size_t len) {
buf[1][h]=os[1];
for (int i=0; i<psgChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1))>>1;
}
ssge->get_last_out(ssgOut);
for (int i=psgChanOffs; i<adpcmAChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs];
oscBuf[i]->data[oscBuf[i]->needle++]=ssgOut.data[i-psgChanOffs]>>1;
}
for (int i=adpcmAChanOffs; i<adpcmBChanOffs; i++) {
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1);
oscBuf[i]->data[oscBuf[i]->needle++]=(adpcmAChan[i-adpcmAChanOffs]->get_last_out(0)+adpcmAChan[i-adpcmAChanOffs]->get_last_out(1))>>1;
}
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
oscBuf[adpcmBChanOffs]->data[oscBuf[adpcmBChanOffs]->needle++]=(abe->get_last_out(0)+abe->get_last_out(1))>>1;
}
}