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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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12
src/engine/platform/ay.cpp
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@ -187,9 +187,9 @@ void DivPlatformAY8910::acquire(short** buf, size_t len) {
buf[0][i]=ayBuf[0][0];
buf[1][i]=buf[0][i];
oscBuf[0]->data[oscBuf[0]->needle++]=sunsoftVolTable[31-(ay->lastIndx&31)]<<3;
oscBuf[1]->data[oscBuf[1]->needle++]=sunsoftVolTable[31-((ay->lastIndx>>5)&31)]<<3;
oscBuf[2]->data[oscBuf[2]->needle++]=sunsoftVolTable[31-((ay->lastIndx>>10)&31)]<<3;
oscBuf[0]->data[oscBuf[0]->needle++]=sunsoftVolTable[31-(ay->lastIndx&31)]<<2;
oscBuf[1]->data[oscBuf[1]->needle++]=sunsoftVolTable[31-((ay->lastIndx>>5)&31)]<<2;
oscBuf[2]->data[oscBuf[2]->needle++]=sunsoftVolTable[31-((ay->lastIndx>>10)&31)]<<2;
}
} else {
for (size_t i=0; i<len; i++) {
@ -205,9 +205,9 @@ void DivPlatformAY8910::acquire(short** buf, size_t len) {
buf[1][i]=buf[0][i];
}
oscBuf[0]->data[oscBuf[0]->needle++]=ayBuf[0][0]<<2;
oscBuf[1]->data[oscBuf[1]->needle++]=ayBuf[1][0]<<2;
oscBuf[2]->data[oscBuf[2]->needle++]=ayBuf[2][0]<<2;
oscBuf[0]->data[oscBuf[0]->needle++]=ayBuf[0][0]<<1;
oscBuf[1]->data[oscBuf[1]->needle++]=ayBuf[1][0]<<1;
oscBuf[2]->data[oscBuf[2]->needle++]=ayBuf[2][0]<<1;
}
}
}