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dsound: Fix off by 1 heap error in DSOUND_MixerVol.

This commit is contained in:
Jörg Höhle 2008-05-20 18:15:15 +02:00 committed by Alexandre Julliard
parent 3d5ea20190
commit 349abe991e
1 changed files with 2 additions and 2 deletions
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4
dlls/dsound/mixer.c
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@ -469,7 +469,7 @@ static LPBYTE DSOUND_MixerVol(const IDirectSoundBufferImpl *dsb, INT len)
case 8:
/* 8-bit WAV is unsigned, but we need to operate */
/* on signed data for this to work properly */
for (i = 0; i < len; i+=2) {
for (i = 0; i < len-1; i+=2) {
*(bpc++) = (((*(mem++) - 128) * vLeft) >> 16) + 128;
*(bpc++) = (((*(mem++) - 128) * vRight) >> 16) + 128;
}
@ -478,7 +478,7 @@ static LPBYTE DSOUND_MixerVol(const IDirectSoundBufferImpl *dsb, INT len)
break;
case 16:
/* 16-bit WAV is signed -- much better */
for (i = 0; i < len; i += 4) {
for (i = 0; i < len-3; i += 4) {
*(bps++) = (*(mems++) * vLeft) >> 16;
*(bps++) = (*(mems++) * vRight) >> 16;
}