qboolean SNDDMAHD_DSEnumSoundDevices(qboolean blistonly)
{
HMODULE hdsounddll = NULL;
pDirectSoundEnumerate DSEnumerate;
if ((hdsounddll = LoadLibrary("dsound.dll")) != NULL &&
(DSEnumerate = (pDirectSoundEnumerate)GetProcAddress(hdsounddll, "DirectSoundEnumerateA")) != NULL &&
s_dev->string != NULL && s_dev->string[0] != '\0')
{
if (blistonly)
{
Com_Printf( "^4List of DirectSound devices:\n");
if (FAILED(DSEnumerate(SNDDMAHD_DSEnumCallbackList, NULL)))
{
Com_Printf("^1Error Enumerating DirectSound Devices\n");
return qfalse;
}
}
else
{
Com_Printf( "^4Looking for DirectSound Device '%s'\n", s_dev->string);
if (FAILED(DSEnumerate(SNDDMAHD_DSEnumCallback, NULL)))
{
Com_Printf("^1Error Enumerating DirectSound Devices\n");
return qfalse;
}
if (g_dsguid == NULL)
Com_Printf("^1Device '%s' not found. ^2Using default driver.\n", s_dev->string);
}
}
if (hdsounddll != NULL) FreeLibrary(hdsounddll);
hdsounddll = NULL;
return qtrue;
}
int SNDDMA_InitDS ()
{
HRESULT hresult;
DSBUFFERDESC dsbuf;
DSBCAPS dsbcaps;
WAVEFORMATEX format;
int use8;
HMODULE hdsounddll;
pDirectSoundEnumerate DSEnumerate;
if ((hdsounddll = LoadLibrary("dsound.dll")) != NULL &&
(DSEnumerate = (pDirectSoundEnumerate)GetProcAddress(hdsounddll, "DirectSoundEnumerateA")) != NULL &&
s_dev->string != NULL && s_dev->string[0] != '\0')
{
Com_Printf( "^4Looking for DirectSound Device '%s'\n", s_dev->string);
if (FAILED(DSEnumerate(SNDDMAHD_DSEnumCallback, NULL)))
Com_Printf("^1Error Enumerating DirectSound Devices\n");
if (g_dsguid == NULL)
Com_Printf("^1Device '%s' not found. ^2Using default driver.\n", s_dev->string);
}
Com_Printf( "Initializing DirectSound\n");
use8 = 1;
// Create IDirectSound using the primary sound device
if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound8, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound8, (void **)&pDS))) {
use8 = 0;
if( FAILED( hresult = CoCreateInstance(&CLSID_DirectSound, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectSound, (void **)&pDS))) {
Com_Printf ("failed\n");
SNDDMA_Shutdown ();
return qfalse;
}
}
hresult = pDS->lpVtbl->Initialize( pDS, g_dsguid);
Com_DPrintf( "ok\n" );
Com_DPrintf("...setting DSSCL_PRIORITY coop level: " );
if ( DS_OK != pDS->lpVtbl->SetCooperativeLevel( pDS, g_wv.hWnd, DSSCL_PRIORITY ) ) {
Com_Printf ("failed\n");
SNDDMA_Shutdown ();
return qfalse;
}
Com_DPrintf("ok\n" );
// create the secondary buffer we'll actually work with
dma.channels = 2;
dma.samplebits = 16;
if (s_khz->integer >= 44) dma.speed = 44100;
else if (s_khz->integer >= 32) dma.speed = 32000;
else if (s_khz->integer >= 24) dma.speed = 24000;
else if (s_khz->integer >= 22) dma.speed = 22050;
else dma.speed = 11025;
memset (&format, 0, sizeof(format));
format.wFormatTag = WAVE_FORMAT_PCM;
format.nChannels = dma.channels;
format.wBitsPerSample = dma.samplebits;
format.nSamplesPerSec = dma.speed;
format.nBlockAlign = format.nChannels * format.wBitsPerSample / 8;
format.cbSize = 0;
format.nAvgBytesPerSec = format.nSamplesPerSec*format.nBlockAlign;
memset (&dsbuf, 0, sizeof(dsbuf));
dsbuf.dwSize = sizeof(DSBUFFERDESC);
// Micah: take advantage of 2D hardware.if available.
dsbuf.dwFlags = DSBCAPS_LOCHARDWARE;
if (use8) {
dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2;
}
dsbuf.dwBufferBytes = SECONDARY_BUFFER_SIZE;
dsbuf.lpwfxFormat = &format;
memset(&dsbcaps, 0, sizeof(dsbcaps));
dsbcaps.dwSize = sizeof(dsbcaps);
Com_DPrintf( "...creating secondary buffer: " );
if (DS_OK == pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) {
Com_Printf( "locked hardware. ok\n" );
}
else {
// Couldn't get hardware, fallback to software.
dsbuf.dwFlags = DSBCAPS_LOCSOFTWARE;
if (use8) {
dsbuf.dwFlags |= DSBCAPS_GETCURRENTPOSITION2;
}
if (DS_OK != pDS->lpVtbl->CreateSoundBuffer(pDS, &dsbuf, &pDSBuf, NULL)) {
Com_Printf( "failed\n" );
SNDDMA_Shutdown ();
return qfalse;
}
Com_DPrintf( "forced to software. ok\n" );
}
// Make sure mixer is active
if ( DS_OK != pDSBuf->lpVtbl->Play(pDSBuf, 0, 0, DSBPLAY_LOOPING) ) {
Com_Printf ("*** Looped sound play failed ***\n");
SNDDMA_Shutdown ();
return qfalse;
}
// get the returned buffer size
if ( DS_OK != pDSBuf->lpVtbl->GetCaps (pDSBuf, &dsbcaps) ) {
Com_Printf ("*** GetCaps failed ***\n");
SNDDMA_Shutdown ();
return qfalse;
}
gSndBufSize = dsbcaps.dwBufferBytes;
dma.channels = format.nChannels;
dma.samplebits = format.wBitsPerSample;
dma.speed = format.nSamplesPerSec;
dma.samples = gSndBufSize/(dma.samplebits/8);
dma.submission_chunk = 1;
dma.buffer = NULL; // must be locked first
sample16 = (dma.samplebits/8) - 1;
SNDDMA_BeginPainting ();
if (dma.buffer)
memset(dma.buffer, 0, dma.samples * dma.samplebits/8);
SNDDMA_Submit ();
return 1;
}
