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Commit a9a689c5 authored by Davin McCall's avatar Davin McCall Committed by Alexandre Julliard
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PhaseCancel subtracts secondary buffer from primary buffer, not the

other way around.
parent 8eaca69b
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Inline Side-by-side
Showing with 8 additions and 8 deletions
dlls/dsound/mixer.c
View file @ a9a689c5
......@@ -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;
......
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