libretro/ppsspp
1
0
Fork 0
mirror of https://github.com/libretro/ppsspp.git synced 2024-11-26 01:40:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Avoid division by zero in audio envelope processing. Fixes sound FX on android in some games.

Browse Source
This commit is contained in:
Henrik Rydgard 2013-06-11 11:04:51 +02:00
parent ea2b923ddf
commit a581e0d180
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Core/HW/SasAudio.cpp
View File

@ -646,9 +646,15 @@ static int durationFromRate(int rate)
const short expCurveReference = 0x7000;
// This needs a rewrite / rethink. Doing all this per sample is insane.
static int getExpCurveAt(int index, int duration) {
const short curveLength = sizeof(expCurve) / sizeof(short);
if (duration == 0) {
// Avoid division by zero, and thus undefined behaviour in conversion to int.
return 0;
}
float curveIndex = (index * curveLength) / (float) duration;
int curveIndex1 = (int) curveIndex;
int curveIndex2 = curveIndex1 + 1;