BOOL getCurrentChannelConfig()
{
IDirectSound8* ds;
DWORD speakerConfig;
LPGUID guid = NULL;
DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);
if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
return FALSE;
}
ds->Initialize(NULL);
if (ds->GetSpeakerConfig(&speakerConfig) != S_OK) {
PrintLastError("GetSpeakerConfig()");
return FALSE;
}
if (ds) {
ds->Release();
}
if (guid) {
LocalFree(guid);
}
switch (DSSPEAKER_CONFIG(speakerConfig)) {
case DSSPEAKER_STEREO: currentChannelCount = 2; return TRUE;
case DSSPEAKER_QUAD: currentChannelCount = 4; return TRUE;
case DSSPEAKER_5POINT1: currentChannelCount = 6; return TRUE;
case DSSPEAKER_7POINT1: currentChannelCount = 8; return TRUE;
}
return FALSE;
}
BOOL setCurrentChannelConfig()
{
IDirectSound8* ds;
DWORD speakerConfig;
LPGUID guid = NULL;
DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);
if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
PrintLastError("DirectSoundCreate8()");
return FALSE;
}
ds->Initialize(NULL);
switch (currentChannelCount) {
case 2: speakerConfig = DSSPEAKER_STEREO; break;
case 4: speakerConfig = DSSPEAKER_QUAD; break;
case 6: speakerConfig = DSSPEAKER_5POINT1; break;
case 8: speakerConfig = DSSPEAKER_7POINT1; break;
default: speakerConfig = DSSPEAKER_STEREO; break;
}
if (ds->SetSpeakerConfig(speakerConfig) != S_OK) {
PrintLastError("SetSpeakerConfig()");
return FALSE;
}
if (ds) {
ds->Release();
}
if (guid) {
LocalFree(guid);
}
return FALSE;
}