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PCM DAC: fix possible overflow in linear interpola

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tildearrow 2023-11-26 18:50:22 -05:00
parent 4e333787ff
commit 5ab70ff91f
1 changed files with 2 additions and 2 deletions
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4
src/engine/platform/pcmdac.cpp
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@ -67,7 +67,7 @@ void DivPlatformPCMDAC::acquire(short** buf, size_t len) {
switch (interp) { switch (interp) {
case 1: // linear case 1: // linear
output=s6+((s7-s6)*(chan[0].audSub&0xffff)>>16); output=s6+(((int)((int)s7-(int)s6)*((chan[0].audSub>>1)&0x7fff))>>15);
break; break;
case 2: { // cubic case 2: { // cubic
float* cubicTable=DivFilterTables::getCubicTable(); float* cubicTable=DivFilterTables::getCubicTable();
@ -188,7 +188,7 @@ void DivPlatformPCMDAC::acquire(short** buf, size_t len) {
switch (interp) { switch (interp) {
case 1: // linear case 1: // linear
output=s6+((s7-s6)*(chan[0].audSub&0xffff)>>16); output=s6+(((int)((int)s7-(int)s6)*((chan[0].audSub>>1)&0x7fff))>>15);
break; break;
case 2: { // cubic case 2: { // cubic
float* cubicTable=DivFilterTables::getCubicTable(); float* cubicTable=DivFilterTables::getCubicTable();