int main(int argc,char* argv[])
{
/* Open the input file: */
IO::FilePtr inputDeviceDataFile(IO::openFile(argv[1]));
inputDeviceDataFile->setEndianness(Misc::LittleEndian);
/* Read file header: */
int numInputDevices=inputDeviceDataFile->read<int>();
Vrui::InputDevice** inputDevices=new Vrui::InputDevice*[numInputDevices];
/* Initialize devices: */
for(int i=0;i<numInputDevices;++i)
{
/* Read device's layout from file: */
DeviceFileHeader header;
inputDeviceDataFile->read(header.name,sizeof(header.name));
inputDeviceDataFile->read(header.trackType);
inputDeviceDataFile->read(header.numButtons);
inputDeviceDataFile->read(header.numValuators);
inputDeviceDataFile->read(header.deviceRayDirection.getComponents(),3);
/* Create new input device: */
Vrui::InputDevice* newDevice=new Vrui::InputDevice;
newDevice->set(header.name,header.trackType,header.numButtons,header.numValuators);
newDevice->setDeviceRayDirection(header.deviceRayDirection);
/* Store the input device: */
inputDevices[i]=newDevice;
}
/* Read all data frames from the input device data file: */
while(true)
{
/* Read the next time stamp: */
double timeStamp;
try
{
timeStamp=inputDeviceDataFile->read<double>();
}
catch(IO::File::ReadError)
{
/* At end of file */
break;
}
std::cout<<"Time stamp: "<<std::fixed<<std::setw(8)<<std::setprecision(3)<<timeStamp;
/* Read data for all input devices: */
for(int device=0;device<numInputDevices;++device)
{
/* Update tracker state: */
if(inputDevices[device]->getTrackType()!=Vrui::InputDevice::TRACK_NONE)
{
Vrui::TrackerState::Vector translation;
inputDeviceDataFile->read(translation.getComponents(),3);
Vrui::Scalar quat[4];
inputDeviceDataFile->read(quat,4);
inputDevices[device]->setTransformation(Vrui::TrackerState(translation,Vrui::TrackerState::Rotation(quat)));
}
/* Update button states: */
for(int i=0;i<inputDevices[device]->getNumButtons();++i)
{
int buttonState=inputDeviceDataFile->read<int>();
inputDevices[device]->setButtonState(i,buttonState);
}
/* Update valuator states: */
for(int i=0;i<inputDevices[device]->getNumValuators();++i)
{
double valuatorState=inputDeviceDataFile->read<double>();
inputDevices[device]->setValuator(i,valuatorState);
}
}
std::cout<<std::endl;
}
return 0;
}
int main(int argc,char* argv[])
{
/* Open the input file: */
IO::SeekableFilePtr inputDeviceDataFile(IO::openSeekableFile(argv[1]));
inputDeviceDataFile->setEndianness(Misc::LittleEndian);
/* Read the file header: */
static const char* fileHeader="Vrui Input Device Data File v3.0\n";
char header[34];
inputDeviceDataFile->read<char>(header,34);
header[33]='\0';
int fileVersion;
if(strncmp(header,fileHeader,29)!=0)
{
/* Pre-versioning file version: */
fileVersion=1;
/* Old file format doesn't have the header text: */
inputDeviceDataFile->setReadPosAbs(0);
}
else if(strcmp(header+29,"2.0\n")==0)
{
/* File version without ray direction and velocities: */
fileVersion=2;
}
else if(strcmp(header+29,"3.0\n")==0)
{
/* File version with ray direction and velocities: */
fileVersion=3;
}
else
{
header[32]='\0';
std::cerr<<"Unsupported input device data file version "<<header+29<<std::endl;
return 1;
}
/* Skip random seed value: */
inputDeviceDataFile->read<unsigned int>();
/* Read file header: */
int numInputDevices=inputDeviceDataFile->read<int>();
Vrui::InputDevice** inputDevices=new Vrui::InputDevice*[numInputDevices];
int* deviceFeatureBaseIndices=new int[numInputDevices];
std::vector<std::string> deviceFeatureNames;
/* Initialize devices: */
for(int i=0;i<numInputDevices;++i)
{
/* Read device's name and layout from file: */
std::string name;
if(fileVersion>=2)
name=Misc::readCppString(*inputDeviceDataFile);
else
{
/* Read a fixed-size string: */
char nameBuffer[40];
inputDeviceDataFile->read(nameBuffer,sizeof(nameBuffer));
name=nameBuffer;
}
int trackType=inputDeviceDataFile->read<int>();
int numButtons=inputDeviceDataFile->read<int>();
int numValuators=inputDeviceDataFile->read<int>();
/* Create new input device: */
Vrui::InputDevice* newDevice=new Vrui::InputDevice;
newDevice->set(name.c_str(),trackType,numButtons,numValuators);
if(fileVersion<3)
{
Vrui::Vector deviceRayDirection;
inputDeviceDataFile->read(deviceRayDirection.getComponents(),3);
newDevice->setDeviceRay(deviceRayDirection,Vrui::Scalar(0));
}
/* Store the input device: */
inputDevices[i]=newDevice;
/* Read or create the device's feature names: */
deviceFeatureBaseIndices[i]=int(deviceFeatureNames.size());
if(fileVersion>=2)
{
/* Read feature names from file: */
for(int j=0;j<newDevice->getNumFeatures();++j)
deviceFeatureNames.push_back(Misc::readCppString(*inputDeviceDataFile));
}
else
{
/* Create default feature names: */
for(int j=0;j<newDevice->getNumFeatures();++j)
deviceFeatureNames.push_back(getDefaultFeatureName(Vrui::InputDeviceFeature(newDevice,j)));
}
}
/* Read all data frames from the input device data file: */
while(true)
{
/* Read the next time stamp: */
double timeStamp;
try
{
timeStamp=inputDeviceDataFile->read<double>();
}
catch(IO::File::ReadError)
{
/* At end of file */
break;
}
std::cout<<"Time stamp: "<<std::fixed<<std::setw(8)<<std::setprecision(3)<<timeStamp;
/* Read data for all input devices: */
for(int device=0;device<numInputDevices;++device)
{
/* Update tracker state: */
if(inputDevices[device]->getTrackType()!=Vrui::InputDevice::TRACK_NONE)
{
if(fileVersion>=3)
{
Vrui::Vector deviceRayDir;
inputDeviceDataFile->read(deviceRayDir.getComponents(),3);
Vrui::Scalar deviceRayStart=inputDeviceDataFile->read<Vrui::Scalar>();
inputDevices[device]->setDeviceRay(deviceRayDir,deviceRayStart);
}
Vrui::TrackerState::Vector translation;
inputDeviceDataFile->read(translation.getComponents(),3);
Vrui::Scalar quat[4];
inputDeviceDataFile->read(quat,4);
inputDevices[device]->setTransformation(Vrui::TrackerState(translation,Vrui::TrackerState::Rotation(quat)));
if(fileVersion>=3)
{
Vrui::Vector linearVelocity,angularVelocity;
inputDeviceDataFile->read(linearVelocity.getComponents(),3);
inputDeviceDataFile->read(angularVelocity.getComponents(),3);
inputDevices[device]->setLinearVelocity(linearVelocity);
inputDevices[device]->setAngularVelocity(angularVelocity);
}
}
/* Update button states: */
if(fileVersion>=3)
{
unsigned char buttonBits=0x00U;
int numBits=0;
for(int i=0;i<inputDevices[device]->getNumButtons();++i)
{
if(numBits==0)
{
buttonBits=inputDeviceDataFile->read<unsigned char>();
numBits=8;
}
inputDevices[device]->setButtonState(i,(buttonBits&0x80U)!=0x00U);
buttonBits<<=1;
--numBits;
}
}
else
{
for(int i=0;i<inputDevices[device]->getNumButtons();++i)
{
int buttonState=inputDeviceDataFile->read<int>();
inputDevices[device]->setButtonState(i,buttonState);
}
}
/* Update valuator states: */
for(int i=0;i<inputDevices[device]->getNumValuators();++i)
{
double valuatorState=inputDeviceDataFile->read<double>();
inputDevices[device]->setValuator(i,valuatorState);
}
}
std::cout<<std::endl;
}
return 0;
}
