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PhaseCancel subtracts secondary buffer from primary buffer, not the 

other way around.
This commit is contained in:
Davin McCall 2005-11-01 10:18:55 +00:00 committed by Alexandre Julliard
parent 8eaca69b39
commit a9a689c592
1 changed files with 8 additions and 8 deletions
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16
dlls/dsound/mixer.c
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@ -536,8 +536,8 @@ static void DSOUND_PhaseCancel(IDirectSoundBufferImpl *dsb, DWORD writepos, DWOR
for (i = 0; i < todo; i++) {
/* 8-bit WAV is unsigned */
field = (*ibuf++ - 128);
field -= (*obuf - 128);
field = (*obuf - 128);
field -= (*ibuf++ - 128);
if (field > 127) field = 127;
else if (field < -128) field = -128;
*obuf++ = field + 128;
@ -549,8 +549,8 @@ static void DSOUND_PhaseCancel(IDirectSoundBufferImpl *dsb, DWORD writepos, DWOR
for (i = 0; i < todo; i++) {
/* 8-bit WAV is unsigned */
field = (*ibuf++ - 128);
field -= (*obuf - 128);
field = (*obuf - 128);
field -= (*ibuf++ - 128);
if (field > 127) field = 127;
else if (field < -128) field = -128;
*obuf++ = field + 128;
@ -569,8 +569,8 @@ static void DSOUND_PhaseCancel(IDirectSoundBufferImpl *dsb, DWORD writepos, DWOR
for (i = 0; i < todo; i++) {
/* 16-bit WAV is signed */
field = *ibufs++;
field -= *obufs;
field = *obufs;
field -= *ibufs++;
if (field > 32767) field = 32767;
else if (field < -32768) field = -32768;
*obufs++ = field;
@ -582,8 +582,8 @@ static void DSOUND_PhaseCancel(IDirectSoundBufferImpl *dsb, DWORD writepos, DWOR
for (i = 0; i < todo; i++) {
/* 16-bit WAV is signed */
field = *ibufs++;
field -= *obufs;
field = *obufs;
field -= *ibufs++;
if (field > 32767) field = 32767;
else if (field < -32768) field = -32768;
*obufs++ = field;