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/***************************************************************************
dsound.c - description
-------------------
begin : Wed May 15 2002
copyright : (C) 2002 by Pete Bernert
email : BlackDove@addcom.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. See also the license.txt file for *
* additional informations. *
* *
***************************************************************************/
//*************************************************************************//
// History of changes:
//
// 2003/01/12 - Pete
// - added recording funcs
//
// 2002/05/15 - Pete
// - generic cleanup for the Peops release
//
//*************************************************************************//
#include "stdafx.h"
#define _IN_DSOUND
#include "externals.h"
#ifdef _WINDOWS
#include <dsound.h>
#include "record.h"
////////////////////////////////////////////////////////////////////////
// dsound globals
////////////////////////////////////////////////////////////////////////
LPDIRECTSOUND lpDS;
LPDIRECTSOUNDBUFFER lpDSBP = NULL;
LPDIRECTSOUNDBUFFER lpDSB = NULL;
DSBUFFERDESC dsbd;
DSBUFFERDESC dsbdesc;
DSCAPS dscaps;
DSBCAPS dsbcaps;
unsigned long LastWrite=0xffffffff;
unsigned long LastPlay=0;
////////////////////////////////////////////////////////////////////////
// SETUP SOUND
////////////////////////////////////////////////////////////////////////
void SetupSound(void)
{
HRESULT dsval;WAVEFORMATEX pcmwf;
dsval = DirectSoundCreate(NULL,&lpDS,NULL);
if(dsval!=DS_OK)
{
MessageBox(hWMain,"DirectSoundCreate!","Error",MB_OK);
return;
}
if(DS_OK!=IDirectSound_SetCooperativeLevel(lpDS,hWMain, DSSCL_PRIORITY))
{
if(DS_OK!=IDirectSound_SetCooperativeLevel(lpDS,hWMain, DSSCL_NORMAL))
{
MessageBox(hWMain,"SetCooperativeLevel!","Error",MB_OK);
return;
}
}
memset(&dsbd,0,sizeof(DSBUFFERDESC));
dsbd.dwSize = 20; // NT4 hack! sizeof(dsbd);
dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER;
dsbd.dwBufferBytes = 0;
dsbd.lpwfxFormat = NULL;
dsval=IDirectSound_CreateSoundBuffer(lpDS,&dsbd,&lpDSBP,NULL);
if(dsval!=DS_OK)
{
MessageBox(hWMain, "CreateSoundBuffer (Primary)", "Error",MB_OK);
return;
}
memset(&pcmwf, 0, sizeof(WAVEFORMATEX));
pcmwf.wFormatTag = WAVE_FORMAT_PCM;
if(iDisStereo) {pcmwf.nChannels = 1; pcmwf.nBlockAlign = 2;}
else {pcmwf.nChannels = 2; pcmwf.nBlockAlign = 4;}
pcmwf.nSamplesPerSec = 44100;
pcmwf.nAvgBytesPerSec = pcmwf.nSamplesPerSec * pcmwf.nBlockAlign;
pcmwf.wBitsPerSample = 16;
dsval=IDirectSoundBuffer_SetFormat(lpDSBP,&pcmwf);
if(dsval!=DS_OK)
{
MessageBox(hWMain, "SetFormat!", "Error",MB_OK);
return;
}
dscaps.dwSize = sizeof(DSCAPS);
dsbcaps.dwSize = sizeof(DSBCAPS);
IDirectSound_GetCaps(lpDS,&dscaps);
IDirectSoundBuffer_GetCaps(lpDSBP,&dsbcaps);
memset(&dsbdesc, 0, sizeof(DSBUFFERDESC));
dsbdesc.dwSize = 20; // NT4 hack! sizeof(DSBUFFERDESC);
dsbdesc.dwFlags = DSBCAPS_LOCSOFTWARE | DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
dsbdesc.dwBufferBytes = SOUNDSIZE;
dsbdesc.lpwfxFormat = (LPWAVEFORMATEX)&pcmwf;
dsval=IDirectSound_CreateSoundBuffer(lpDS,&dsbdesc,&lpDSB,NULL);
if(dsval!=DS_OK)
{
MessageBox(hWMain,"CreateSoundBuffer (Secondary)", "Error",MB_OK);
return;
}
dsval=IDirectSoundBuffer_Play(lpDSBP,0,0,DSBPLAY_LOOPING);
if(dsval!=DS_OK)
{
MessageBox(hWMain,"Play (Primary)","Error",MB_OK);
return;
}
dsval=IDirectSoundBuffer_Play(lpDSB,0,0,DSBPLAY_LOOPING);
if(dsval!=DS_OK)
{
MessageBox(hWMain,"Play (Secondary)","Error",MB_OK);
return;
}
}
////////////////////////////////////////////////////////////////////////
// REMOVE SOUND
////////////////////////////////////////////////////////////////////////
void RemoveSound(void)
{
int iRes;
if(iDoRecord) RecordStop();
if(lpDSB!=NULL)
{
IDirectSoundBuffer_Stop(lpDSB);
iRes=IDirectSoundBuffer_Release(lpDSB);
// FF says such a loop is bad... Demo says it's good... Pete doesn't care
while(iRes!=0) iRes=IDirectSoundBuffer_Release(lpDSB);
lpDSB=NULL;
}
if(lpDSBP!=NULL)
{
IDirectSoundBuffer_Stop(lpDSBP);
iRes=IDirectSoundBuffer_Release(lpDSBP);
// FF says such a loop is bad... Demo says it's good... Pete doesn't care
while(iRes!=0) iRes=IDirectSoundBuffer_Release(lpDSBP);
lpDSBP=NULL;
}
if(lpDS!=NULL)
{
iRes=IDirectSound_Release(lpDS);
// FF says such a loop is bad... Demo says it's good... Pete doesn't care
while(iRes!=0) iRes=IDirectSound_Release(lpDS);
lpDS=NULL;
}
}
////////////////////////////////////////////////////////////////////////
// GET BYTES BUFFERED
////////////////////////////////////////////////////////////////////////
unsigned long SoundGetBytesBuffered(void)
{
unsigned long cplay,cwrite;
if(LastWrite==0xffffffff) return 0;
IDirectSoundBuffer_GetCurrentPosition(lpDSB,&cplay,&cwrite);
if(cplay>SOUNDSIZE) return SOUNDSIZE;
if(cplay<LastWrite) return LastWrite-cplay;
return (SOUNDSIZE-cplay)+LastWrite;
}
////////////////////////////////////////////////////////////////////////
// FEED SOUND DATA
////////////////////////////////////////////////////////////////////////
void SoundFeedStreamData(unsigned char* pSound,long lBytes)
{
LPVOID lpvPtr1, lpvPtr2;
unsigned long dwBytes1,dwBytes2;
unsigned long *lpSS, *lpSD;
unsigned long dw,cplay,cwrite;
HRESULT hr;
unsigned long status;
if (lpDSB == NULL)
return;
if(iDoRecord) RecordBuffer(pSound,lBytes);
IDirectSoundBuffer_GetStatus(lpDSB,&status);
if(status&DSBSTATUS_BUFFERLOST)
{
if(IDirectSoundBuffer_Restore(lpDSB)!=DS_OK) return;
IDirectSoundBuffer_Play(lpDSB,0,0,DSBPLAY_LOOPING);
}
IDirectSoundBuffer_GetCurrentPosition(lpDSB,&cplay,&cwrite);
if(LastWrite==0xffffffff) LastWrite=cwrite;
/*
// mmm... security... not needed, I think
if(LastWrite<cplay)
{
if((cplay-LastWrite)<=(unsigned long)lBytes)
{
LastWrite=0xffffffff;
return;
}
}
else
{
if(LastWrite<cwrite)
{
LastWrite=0xffffffff;
return;
}
}
*/
hr=IDirectSoundBuffer_Lock(lpDSB,LastWrite,lBytes,
&lpvPtr1, &dwBytes1,
&lpvPtr2, &dwBytes2,
0);
if(hr!=DS_OK) {LastWrite=0xffffffff;return;}
lpSD=(unsigned long *)lpvPtr1;
dw=dwBytes1>>2;
lpSS=(unsigned long *)pSound;
while(dw) {*lpSD++=*lpSS++;dw--;}
if(lpvPtr2)
{
lpSD=(unsigned long *)lpvPtr2;
dw=dwBytes2>>2;
while(dw) {*lpSD++=*lpSS++;dw--;}
}
IDirectSoundBuffer_Unlock(lpDSB,lpvPtr1,dwBytes1,lpvPtr2,dwBytes2);
LastWrite+=lBytes;
if(LastWrite>=SOUNDSIZE) LastWrite-=SOUNDSIZE;
LastPlay=cplay;
}
#endif
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