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Modified volume_effect8 for taking unsigned data as signed data, and 

wodPlayer_WriteMaxFrags because of wrong data length which lead to
strange noise and volume control working incorrectly.
This commit is contained in:
Jerry Jenkins 2002-09-17 01:29:26 +00:00 committed by Alexandre Julliard
parent 062425aee4
commit e944bbb954
1 changed files with 5 additions and 5 deletions
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10
dlls/winmm/winearts/audio.c
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@ -202,8 +202,8 @@ void volume_effect16(void *bufin, void* bufout, int length, int left,
void volume_effect8(void *bufin, void* bufout, int length, int left,
int right, int nChannels)
{
char *d_out = (char *)bufout;
char *d_in = (char *)bufin;
BYTE *d_out = (BYTE *)bufout;
BYTE *d_in = (BYTE *)bufin;
int i, v;
/*
@ -214,11 +214,11 @@ void volume_effect8(void *bufin, void* bufout, int length, int left,
for(i = 0; i < length; i+=(nChannels))
{
v = (char) ((*(d_in++) * left) / 100);
v = (BYTE) ((*(d_in++) * left) / 100);
*(d_out++) = (v>255) ? 255 : ((v<0) ? 0 : v);
if(nChannels == 2)
{
v = (char) ((*(d_in++) * right) / 100);
v = (BYTE) ((*(d_in++) * right) / 100);
*(d_out++) = (v>255) ? 255 : ((v<0) ? 0 : v);
}
}
@ -645,7 +645,7 @@ static int wodPlayer_WriteMaxFrags(WINE_WAVEOUT* wwo, DWORD* bytes)
{
/* apply volume to the buffer we are about to send */
volume_effect8(wwo->lpPlayPtr->lpData + wwo->dwPartialOffset,
wwo->sound_buffer, toWrite>>1, wwo->volume_left,
wwo->sound_buffer, toWrite, wwo->volume_left,
wwo->volume_right, wwo->format.wf.nChannels);
} else
{