void ALDeviceList::SelectBestDevice()
{
m_defaultDeviceIndex = -1;
int best_majorVersion = -1;
int best_minorVersion = -1;
int majorVersion, minorVersion;
for (int i = 0; i < GetNumDevices(); i++)
{
if( m_defaultDeviceName!=GetDeviceName(i) )continue;
GetDeviceVersion (i, &majorVersion, &minorVersion);
if( (majorVersion>best_majorVersion) ||
(majorVersion==best_majorVersion && minorVersion>best_minorVersion) )
{
best_majorVersion = majorVersion;
best_minorVersion = minorVersion;
m_defaultDeviceIndex = i;
}
}
if(m_defaultDeviceIndex==-1)
{ // not selected
R_ASSERT(GetNumDevices()!=0);
m_defaultDeviceIndex = 0; //first
};
if(GetNumDevices()==0)
Msg("SOUND: OpenAL: SelectBestDevice: list empty");
else
Msg("SOUND: OpenAL: SelectBestDevice is %s %d.%d",GetDeviceName(m_defaultDeviceIndex).c_str(),best_majorVersion,best_minorVersion);
}
/*
* Deselects devices which don't have the specified minimum version
*/
void ALDeviceList::FilterDevicesMinVer(int major, int minor)
{
int dMajor, dMinor;
for (unsigned int i = 0; i < m_devices.size(); i++) {
GetDeviceVersion(i, &dMajor, &dMinor);
if ((dMajor < major) || ((dMajor == major) && (dMinor < minor)))
m_devices[i].selected = false;
}
}
/*
* Deselects devices which don't have the specified maximum version
*/
void ALDeviceList::FilterDevicesMaxVer(s32 major, s32 minor)
{
s32 dMajor = 0, dMinor = 0;
for (u32 i = 0; i < vDeviceInfo.size(); i++) {
GetDeviceVersion(i, &dMajor, &dMinor);
if ((dMajor > major) || ((dMajor == major) && (dMinor > minor))) {
vDeviceInfo[i].bSelected = false;
}
}
}
/*
* Deselects devices which don't have the specified maximum version
*/
void ALDeviceList::FilterDevicesMaxVer(int major, int minor)
{
int dMajor, dMinor;
for (unsigned int i = 0; i < vDeviceInfo.size(); i++) {
GetDeviceVersion(i, &dMajor, &dMinor);
if ((dMajor > major) || ((dMajor == major) && (dMinor > minor))) {
vDeviceInfo[i].bSelected = false;
}
}
}
/*
* Deselects devices which don't have the specified minimum version
*/
void ALDeviceList::FilterDevicesMinVer(S32 major, S32 minor)
{
int dMajor, dMinor;
for (U32 i = 0; i < vDeviceInfo.size(); i++) {
GetDeviceVersion(i, &dMajor, &dMinor);
if ((dMajor < major) || ((dMajor == major) && (dMinor < minor))) {
vDeviceInfo[i].bSelected = false;
}
}
}
void ALDeviceList::Enumerate()
{
char *devices;
int major, minor, index;
const char *actualDeviceName;
Msg("SOUND: OpenAL: enumerate devices...");
// have a set of vectors storing the device list, selection status, spec version #, and XRAM support status
// -- empty all the lists and reserve space for 10 devices
m_devices.clear ();
CoUninitialize();
// grab function pointers for 1.0-API functions, and if successful proceed to enumerate all devices
if (alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT"))
{
Msg("SOUND: OpenAL: EnumerationExtension Present");
devices = (char *)alcGetString(NULL, ALC_DEVICE_SPECIFIER);
Msg ("devices %s",devices);
m_defaultDeviceName = (char *)alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
Msg("SOUND: OpenAL: system default SndDevice name is %s", m_defaultDeviceName.c_str());
// ManowaR
// "Generic Hardware" device on software AC'97 codecs introduce
// high CPU usage ( up to 30% ) as a consequence - freezes, FPS drop
// So if default device is "Generic Hardware" which maps to DirectSound3D interface
// We re-assign it to "Generic Software" to get use of old good DirectSound interface
// This makes 3D-sound processing unusable on cheap AC'97 codecs
// Also we assume that if "Generic Hardware" exists, than "Generic Software" is also exists
// Maybe wrong
if(0==stricmp(m_defaultDeviceName.c_str(),AL_GENERIC_HARDWARE))
{
m_defaultDeviceName = AL_GENERIC_SOFTWARE;
Msg("SOUND: OpenAL: default SndDevice name set to %s", m_defaultDeviceName.c_str());
}
index = 0;
// go through device list (each device terminated with a single NULL, list terminated with double NULL)
while (*devices != NULL)
{
ALCdevice *device = alcOpenDevice(devices);
if (device)
{
ALCcontext *context = alcCreateContext(device, NULL);
if (context)
{
alcMakeContextCurrent(context);
// if new actual device name isn't already in the list, then add it...
actualDeviceName = alcGetString(device, ALC_DEVICE_SPECIFIER);
if ( (actualDeviceName != NULL) && xr_strlen(actualDeviceName)>0 )
{
alcGetIntegerv (device, ALC_MAJOR_VERSION, sizeof(int), &major);
alcGetIntegerv (device, ALC_MINOR_VERSION, sizeof(int), &minor);
m_devices.push_back (ALDeviceDesc(actualDeviceName,minor,major));
m_devices.back().xram = (alIsExtensionPresent("EAX-RAM") == TRUE);
m_devices.back().eax = (alIsExtensionPresent("EAX2.0") == TRUE);
// KD: disable unwanted eax flag to force eax on all devices
m_devices.back().eax_unwanted = 0;/*((0==xr_strcmp(actualDeviceName,AL_GENERIC_HARDWARE))||
(0==xr_strcmp(actualDeviceName,AL_GENERIC_SOFTWARE)));*/
++index;
}
alcDestroyContext(context);
} else
Msg("SOUND: OpenAL: cant create context for %s",device);
alcCloseDevice(device);
} else
Msg("SOUND: OpenAL: cant open device %s",devices);
devices += xr_strlen(devices) + 1;
}
} else
Msg("SOUND: OpenAL: EnumerationExtension NOT Present");
ResetFilters();
if(0!=GetNumDevices())
Msg("SOUND: OpenAL: All available devices:");
int majorVersion, minorVersion;
for (int i = 0; i < GetNumDevices(); i++)
{
GetDeviceVersion (i, &majorVersion, &minorVersion);
Msg ("%d. %s, Spec Version %d.%d %s",
i+1,
GetDeviceName(i).c_str(),
majorVersion,
minorVersion,
(GetDeviceName(i)==m_defaultDeviceName)? "(default)":"" );
}
CoInitializeEx (NULL, COINIT_MULTITHREADED);
}
