void SFXALProvider::init()
{
if( LoadOAL10Library( NULL, &mOpenAL ) != AL_TRUE )
{
Con::printf( "SFXALProvider - OpenAL not available." );
return;
}
mALDL = new ALDeviceList( mOpenAL );
// Did we get any devices?
if ( mALDL->GetNumDevices() < 1 )
{
Con::printf( "SFXALProvider - No valid devices found!" );
return;
}
// Cool, loop through them, and caps em
const char *deviceFormat = "OpenAL v%d.%d %s";
char temp[256];
for( S32 i = 0; i < mALDL->GetNumDevices(); i++ )
{
ALDeviceInfo* info = new ALDeviceInfo;
info->name = String( mALDL->GetDeviceName( i ) );
S32 major, minor, eax = 0;
mALDL->GetDeviceVersion( i, &major, &minor );
// Apologies for the blatent enum hack -patw
for( S32 j = SFXALEAX2; j < SFXALEAXRAM; j++ )
eax += (int)mALDL->IsExtensionSupported( i, (SFXALCaps)j );
if( eax > 0 )
{
eax += 2; // EAX support starts at 2.0
dSprintf( temp, sizeof( temp ), "[EAX %d.0] %s", eax, ( mALDL->IsExtensionSupported( i, SFXALEAXRAM ) ? "EAX-RAM" : "" ) );
}
else
dStrcpy( temp, "" );
info->driver = String::ToString( deviceFormat, major, minor, temp );
info->hasHardware = eax > 0;
info->maxBuffers = mALDL->GetMaxNumSources( i );
mDeviceInfo.push_back( info );
}
regProvider( this );
}
/*
* Init call
*/
ALDeviceList::ALDeviceList()
{
ALDEVICEINFO ALDeviceInfo;
char *devices;
int index;
const char *defaultDeviceName;
const char *actualDeviceName;
// DeviceInfo vector stores, for each enumerated device, it's device name, selection status, spec version #, and extension support
vDeviceInfo.empty();
vDeviceInfo.reserve(10);
defaultDeviceIndex = 0;
// grab function pointers for 1.0-API functions, and if successful proceed to enumerate all devices
if (LoadOAL10Library(NULL, &ALFunction) == TRUE) {
if (ALFunction.alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT")) {
devices = (char *)ALFunction.alcGetString(NULL, ALC_DEVICE_SPECIFIER);
defaultDeviceName = (char *)ALFunction.alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
index = 0;
// go through device list (each device terminated with a single NULL, list terminated with double NULL)
while (*devices != NULL) {
if (strcmp(defaultDeviceName, devices) == 0) {
defaultDeviceIndex = index;
}
ALCdevice *device = ALFunction.alcOpenDevice(devices);
if (device) {
ALCcontext *context = ALFunction.alcCreateContext(device, NULL);
if (context) {
ALFunction.alcMakeContextCurrent(context);
// if new actual device name isn't already in the list, then add it...
actualDeviceName = ALFunction.alcGetString(device, ALC_DEVICE_SPECIFIER);
bool bNewName = true;
for (int i = 0; i < GetNumDevices(); i++) {
if (strcmp(GetDeviceName(i), actualDeviceName) == 0) {
bNewName = false;
}
}
if ((bNewName) && (actualDeviceName != NULL) && (strlen(actualDeviceName) > 0)) {
memset(&ALDeviceInfo, 0, sizeof(ALDEVICEINFO));
ALDeviceInfo.bSelected = true;
ALDeviceInfo.strDeviceName = actualDeviceName;
ALFunction.alcGetIntegerv(device, ALC_MAJOR_VERSION, sizeof(int), &ALDeviceInfo.iMajorVersion);
ALFunction.alcGetIntegerv(device, ALC_MINOR_VERSION, sizeof(int), &ALDeviceInfo.iMinorVersion);
ALDeviceInfo.pvstrExtensions = new vector<string>;
// Check for ALC Extensions
if (ALFunction.alcIsExtensionPresent(device, "ALC_EXT_CAPTURE") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("ALC_EXT_CAPTURE");
if (ALFunction.alcIsExtensionPresent(device, "ALC_EXT_EFX") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("ALC_EXT_EFX");
// Check for AL Extensions
if (ALFunction.alIsExtensionPresent("AL_EXT_OFFSET") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("AL_EXT_OFFSET");
if (ALFunction.alIsExtensionPresent("AL_EXT_LINEAR_DISTANCE") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("AL_EXT_LINEAR_DISTANCE");
if (ALFunction.alIsExtensionPresent("AL_EXT_EXPONENT_DISTANCE") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("AL_EXT_EXPONENT_DISTANCE");
if (ALFunction.alIsExtensionPresent("EAX2.0") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("EAX2.0");
if (ALFunction.alIsExtensionPresent("EAX3.0") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("EAX3.0");
if (ALFunction.alIsExtensionPresent("EAX4.0") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("EAX4.0");
if (ALFunction.alIsExtensionPresent("EAX5.0") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("EAX5.0");
if (ALFunction.alIsExtensionPresent("EAX-RAM") == AL_TRUE)
ALDeviceInfo.pvstrExtensions->push_back("EAX-RAM");
// Get Source Count
ALDeviceInfo.uiSourceCount = GetMaxNumSources();
vDeviceInfo.push_back(ALDeviceInfo);
}
ALFunction.alcMakeContextCurrent(NULL);
ALFunction.alcDestroyContext(context);
}
ALFunction.alcCloseDevice(device);
}
devices += strlen(devices) + 1;
index += 1;
}
}
}
ResetFilters();
}