devices/deviceoutput/ordeviceoutput_hardware.cxx

/***************************************************************************************
 Autodesk(R) Open Reality(R) Samples
 
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***************************************************************************************/

//--- Class declaration
#include "ordeviceoutput_hardware.h"

/************************************************
 *  Constructor.
 ************************************************/
ORDeviceOutputHardware::ORDeviceOutputHardware()
{
    mExportFile     = NULL;
    mCounter        = 0;
    mSerialPort     = 1;
    mFileOpen       = false;
    mExportFilename = "C:\\ordeviceoutput.txt";
}


/************************************************
 *  Destructor.
 ************************************************/
ORDeviceOutputHardware::~ORDeviceOutputHardware()
{
}


/************************************************
 *  Open device communications.
 ************************************************/
bool ORDeviceOutputHardware::Open()
{
    // TODO: Open serial port to hardware
    mExportFile = fopen( mExportFilename, "wt" );
    if( mExportFile )
    {
        mFileOpen = true;
    }
    return true;
}


/************************************************
 *  Get device setup information.
 ************************************************/
bool ORDeviceOutputHardware::GetSetupInfo()
{
    // TODO: Get hardware information
    return true;
}


/************************************************
 *  Close device communications.
 ************************************************/
bool ORDeviceOutputHardware::Close()
{
    // TODO: Close network connection to server
    if( mFileOpen )
    {
        fclose( mExportFile );
        mFileOpen = false;
    }
    return true;
}


/************************************************
 *  Fetch a data packet from the device.
 ************************************************/
bool ORDeviceOutputHardware::FetchDataPacket(FBTime &pTime)
{
    //Returns true if a new data packet is ready
    // TODO: insert time stamp from data packet
    pTime = mSystem.SystemTime;

    // TODO: Replace this bogus code with real NON-BLOCKING TCP, UDP or serial calls
    // to your data server.
    PollData();

    // As soon as enough bytes have been read to have data for all makers,
    // return immediately, even if another data packer is waiting
    // This function is nested in a while loop and will be called immediately
    // as soon as the current data frame is processed.

    // TODO: mCounter is a bogus variable there to simulate a time-reference
    if(mCounter%4)
    {
        return true; // data for all elements of mChannelData[] has been found.
    }
    else
    {
        return false; // incomplete data packet has been read.
    }
}


/************************************************
 *  Poll device.
 *  Device should get itself to send more data.
 ************************************************/
bool ORDeviceOutputHardware::PollData()
{
    mCounter++;
    return true;
}


/************************************************
 *  Send a data packet over the network to move lights.
 ************************************************/
bool ORDeviceOutputHardware::SendDataPacket(FBTime &pTime)
{
    // Send to hardware
    // High priority IO thread, must have minimal CPU usage.
    // Non-blocking IO, send data to hardware via comm port, network, etc.

    if( mFileOpen )
    {
        fprintf(mExportFile,"[%s]\t(%.2lf,%.2lf,%.2lf)\t(%.2lf,%.2lf,%.2lf)\n",
                    (char*)pTime.GetTimeString(),
                    mPosition[0],
                    mPosition[1],
                    mPosition[2],
                    mRotation[0],
                    mRotation[1],
                    mRotation[2]
                );
    }

    return true;
}


/************************************************
 *  Write the new position values into the hardware abstraction.
 ************************************************/
void ORDeviceOutputHardware::WritePos( double* pPos )
{
    mPosition[0] = pPos[0];
    mPosition[1] = pPos[1];
    mPosition[2] = pPos[2];
}


/************************************************
 *  Write the new rotation values into the hardware abstraction.
 ************************************************/
void ORDeviceOutputHardware::WriteRot( double* pRot )
{
    mRotation[0] = pRot[0];
    mRotation[1] = pRot[1];
    mRotation[2] = pRot[2];
}