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YM2610: optimize oscilloscope fetch CPU usage

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This commit is contained in:
tildearrow 2022-05-03 02:52:38 -05:00
parent b8a2c90b61
commit 4c9b172b50
4 changed files with 52 additions and 27 deletions
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21
src/engine/platform/ym2610.cpp
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@ -428,7 +428,15 @@ void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t l
ymfm::adpcm_b_engine* abe=fm->debug_adpcm_b_engine();
ymfm::ssg_engine::output_data ssgOut;
ymfm::ymfm_output<2> adpcmOut;
ymfm::fm_channel<ymfm::opn_registers_base<true>>* fmChan[6];
ymfm::adpcm_a_channel* adpcmAChan[6];
for (int i=0; i<4; i++) {
fmChan[i]=fme->debug_channel(bchOffs[i]);
}
for (int i=0; i<6; i++) {
adpcmAChan[i]=aae->debug_channel(i);
}
for (size_t h=start; h<start+len; h++) {
os[0]=0; os[1]=0;
@ -457,8 +465,7 @@ void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t l
bufR[h]=os[1];
for (int i=0; i<4; i++) {
int ch=bchOffs[i];
oscBuf[i]->data[oscBuf[i]->needle++]=(fme->debug_channel(ch)->debug_output(0)+fme->debug_channel(ch)->debug_output(1));
oscBuf[i]->data[oscBuf[i]->needle++]=(fmChan[i]->debug_output(0)+fmChan[i]->debug_output(1));
}
ssge->get_last_out(ssgOut);
@ -467,14 +474,10 @@ void DivPlatformYM2610::acquire(short* bufL, short* bufR, size_t start, size_t l
}
for (int i=7; i<13; i++) {
adpcmOut.clear();
aae->debug_channel(i-7)->output<2>(adpcmOut);
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmOut.data[0]+adpcmOut.data[1];
oscBuf[i]->data[oscBuf[i]->needle++]=adpcmAChan[i-7]->get_last_out(0)+adpcmAChan[i-7]->get_last_out(1);
}
adpcmOut.clear();
abe->output(adpcmOut,1);
oscBuf[13]->data[oscBuf[13]->needle++]=adpcmOut.data[0]+adpcmOut.data[1];
oscBuf[13]->data[oscBuf[13]->needle++]=abe->get_last_out(0)+abe->get_last_out(1);
}
}