void I_UpdateSoundParams(int channel, int vol, int sep, int pitch)
{
// proff 07/04/98: Added for CYGWIN32 compatibility
#ifdef HAVE_LIBDSOUND
int DSB_Status;
if (noDSound == true)
return;
// proff 07/26/98: Added volume check
if (vol==0)
{
IDirectSoundBuffer_Stop(lpSecondaryDSB[channel]);
return;
}
IDirectSoundBuffer_SetVolume(lpSecondaryDSB[channel],VOL(vol));
IDirectSoundBuffer_SetPan(lpSecondaryDSB[channel],SEP(sep));
IDirectSoundBuffer_SetFrequency
(lpSecondaryDSB[channel], ChannelInfo[channel].samplerate+PITCH(pitch));
if (ChannelInfo[channel].playing == true)
{
IDirectSoundBuffer_GetStatus(lpSecondaryDSB[channel], &DSB_Status);
if ((DSB_Status & DSBSTATUS_PLAYING) == 0)
IDirectSoundBuffer_Play(lpSecondaryDSB[channel], 0, 0, 0);
}
#endif // HAVE_LIBDSOUND
}
/* Ac97 Volume
Volume has been divided into 8 levels to
correspond to 8 leds
\param[in] Xuint32 volume
*/
void audio_set_volume(Xuint32 address, int volume) {
Xuint32 v = 0;
#define VOL(val, def) case val: v = def; break;
switch(volume)
{
VOL(0, AC97_VOL_ATTN_44_5_DB);
VOL(1, AC97_VOL_ATTN_41_5_DB);
VOL(2, AC97_VOL_ATTN_35_5_DB);
VOL(3, AC97_VOL_ATTN_29_5_DB);
VOL(4, AC97_VOL_ATTN_23_5_DB);
VOL(5, AC97_VOL_ATTN_17_5_DB);
VOL(6, AC97_VOL_ATTN_11_5_DB);
VOL(7, AC97_VOL_ATTN_6_0_DB);
VOL(8, AC97_VOL_ATTN_0_DB);
default: break;
}
XAC97_WriteReg(address, AC97_PCMOutVol, v);
XAC97_WriteReg(address, AC97_MasterVol, AC97_VOL_MAX );
XAC97_WriteReg(address, AC97_AuxOutVol, AC97_VOL_MAX);
XAC97_WriteReg(address, AC97_MasterVolMono, AC97_VOL_MAX);
}
int I_StartSound(sfxinfo_t *sound, int vol, int sep, int pitch, int pri)
{
int channel=0;
// proff 07/04/98: Added for CYGWIN32 compatibility
#ifdef HAVE_LIBDSOUND
HRESULT error;
char *snddata;
int sndlength;
if (noDSound == true)
return channel;
// load sound data if we have not already
I_CacheSound(sound);
// find a free channel
channel = I_GetFreeChannel();
// proff 07/26/98: Added volume check
// proff 10/31/98: Added Stop before updating sound-data
error = IDirectSoundBuffer_Stop(lpSecondaryDSB[channel]);
ChannelInfo[channel].playing = false;
if (vol==0)
return channel;
snddata = sound->data;
ChannelInfo[channel].samplerate = (snddata[3] << 8) + snddata[2];
// proff 10/31/98: Use accurate time for this one
ChannelInfo[channel].endtime =
I_GetTime_RealTime() +
(sound->length * 35) / ChannelInfo[channel].samplerate + 1;
// skip past header
snddata += 8;
sndlength = sound->length - 8;
error = IDirectSoundBuffer_SetCurrentPosition(lpSecondaryDSB[channel],0);
// proff 11/09/98: Added for a slight speedup
if (sound != ChannelInfo[channel].sfx)
{
DWORD *hand1,*hand2;
DWORD len1,len2;
ChannelInfo[channel].sfx = sound;
error = IDirectSoundBuffer_Lock(lpSecondaryDSB[channel],0,65535,
&hand1,&len1,&hand2,&len2,
DSBLOCK_FROMWRITECURSOR);
if (len1 >= sndlength)
{
memset(hand1, 128, len1);
memcpy(hand1, snddata , sndlength);
memset(hand2, 128, len2);
}
else
{
memcpy(hand1, snddata, len1);
memcpy(hand2, &((char *)snddata)[len1], sndlength-len1);
}
error = IDirectSoundBuffer_Unlock
(lpSecondaryDSB[channel], hand1, len1, hand2, len2);
}
IDirectSoundBuffer_SetVolume(lpSecondaryDSB[channel], VOL(vol));
IDirectSoundBuffer_SetPan(lpSecondaryDSB[channel], SEP(sep));
IDirectSoundBuffer_SetFrequency(lpSecondaryDSB[channel],
ChannelInfo[channel].samplerate+PITCH(pitch));
error = IDirectSoundBuffer_Play(lpSecondaryDSB[channel], 0, 0, 0);
ChannelInfo[channel].playing = true;
#endif // HAVE_LIBDSOUND
return channel;
}