C++ (Cpp) HandleXiResult示例

示例#1

文件： cap_ximea.cpp 项目： 4ker/opencv

// Initialize camera input
bool CvCaptureCAM_XIMEA::open( int wIndex )
{
#define HandleXiResult(res) if (res!=XI_OK)  goto error;

    int mvret = XI_OK;

    if(numDevices == 0)
        return false;

    if((mvret = xiOpenDevice( wIndex, &hmv)) != XI_OK)
    {
#if defined WIN32 || defined _WIN32
        errMsg("Open XI_DEVICE failed", mvret);
        return false;
#else
        // try opening second time if first fails
        if((mvret = xiOpenDevice( wIndex, &hmv))  != XI_OK)
        {
            errMsg("Open XI_DEVICE failed", mvret);
            return false;
        }
#endif
    }

    int width   = 0;
    int height  = 0;
    int isColor = 0;

    // always use auto exposure/gain
    mvret = xiSetParamInt( hmv, XI_PRM_AEAG, 1);
    HandleXiResult(mvret);

    mvret = xiGetParamInt( hmv, XI_PRM_WIDTH, &width);
    HandleXiResult(mvret);

    mvret = xiGetParamInt( hmv, XI_PRM_HEIGHT, &height);
    HandleXiResult(mvret);

    mvret = xiGetParamInt(hmv, XI_PRM_IMAGE_IS_COLOR, &isColor);
    HandleXiResult(mvret);

    if(isColor) // for color cameras
    {
        // default image format RGB24
        mvret = xiSetParamInt( hmv, XI_PRM_IMAGE_DATA_FORMAT, XI_RGB24);
        HandleXiResult(mvret);

        // always use auto white balance for color cameras
        mvret = xiSetParamInt( hmv, XI_PRM_AUTO_WB, 1);
        HandleXiResult(mvret);

        // allocate frame buffer for RGB24 image
        frame = cvCreateImage(cvSize(width, height), IPL_DEPTH_8U, 3);
    }
    else // for mono cameras
    {
        // default image format MONO8
        mvret = xiSetParamInt( hmv, XI_PRM_IMAGE_DATA_FORMAT, XI_MONO8);
        HandleXiResult(mvret);

        // allocate frame buffer for MONO8 image
        frame = cvCreateImage(cvSize(width, height), IPL_DEPTH_8U, 1);
    }

    //default capture timeout 10s
    timeout = 10000;

    mvret = xiStartAcquisition(hmv);
    if(mvret != XI_OK)
    {
        errMsg("StartAcquisition XI_DEVICE failed", mvret);
        goto error;
    }
    return true;

error:
    errMsg("Open XI_DEVICE failed", mvret);
    xiCloseDevice(hmv);
    hmv = NULL;
    return false;
}

示例#2

文件： ximea.cpp 项目： LaboratoireMecaniqueLille/crappy

// Initialize camera input
bool CaptureCAM_XIMEA::open( char * device_path )
{
    cout << "OPEN DEVICE BY NAME" << endl;
    #define HandleXiResult(res) if (res!=XI_OK)  goto error;
    int mvret = XI_OK;

    if(numDevices == 0)
        return false;
    trigger = false;
    if(xiOpenDeviceBy(XI_OPEN_BY_INST_PATH, device_path, &hmv) != XI_OK)
    {
#if defined WIN32 || defined _WIN32
        errMsg("Open XI_DEVICE failed", mvret);
        return false;
#else
        // try opening second time if first fails
        if(xiOpenDeviceBy(XI_OPEN_BY_INST_PATH, device_path, &hmv)  != XI_OK)
        {
            errMsg("Open XI_DEVICE failed", mvret);
            return false;
        }
#endif
    }
    int width   = 0;
    int height  = 0;
    int isColor = 0;

    // always use auto exposure/gain
    mvret = xiSetParamInt( hmv, XI_PRM_AEAG, 1);
    HandleXiResult(mvret);

    mvret = xiGetParamInt( hmv, XI_PRM_WIDTH, &width);
    HandleXiResult(mvret);

    mvret = xiGetParamInt( hmv, XI_PRM_HEIGHT, &height);
    HandleXiResult(mvret);

    mvret = xiGetParamInt(hmv, XI_PRM_IMAGE_IS_COLOR, &isColor);
    HandleXiResult(mvret);
    
    mvret = xiSetParamInt(hmv, XI_PRM_ACQ_TIMING_MODE, XI_ACQ_TIMING_MODE_FREE_RUN);
    HandleXiResult(mvret);
    
    if(isColor) // for color cameras
    {
        // default image format RGB24
        mvret = xiSetParamInt( hmv, XI_PRM_IMAGE_DATA_FORMAT, XI_RGB24);
        HandleXiResult(mvret);

        // always use auto white balance for color cameras
        mvret = xiSetParamInt( hmv, XI_PRM_AUTO_WB, 1);
        HandleXiResult(mvret);
    }
    else // for mono cameras
    {
        // default image format MONO8
        mvret = xiSetParamInt( hmv, XI_PRM_IMAGE_DATA_FORMAT, XI_MONO8);
        HandleXiResult(mvret);
    }

    //default capture timeout 10s
    timeout = 10000;

    /* NOT WORKING IF XI_PRM_BUFFERS_QUEUE_SIZE is set to a value < 3*/
    mvret = xiSetParamInt(hmv, XI_PRM_BUFFERS_QUEUE_SIZE, 3);
    if( mvret != XI_OK)
        errMsg("Set parameter error (XI_PRM_BUFFERS_QUEUE_SIZE)", mvret);
    mvret = xiSetParamInt(hmv, XI_PRM_RECENT_FRAME, 1);
    if( mvret != XI_OK)
        errMsg("Set parameter error (XI_PRM_RECENT_FRAME)", mvret);
    mvret = xiSetParamInt(hmv, XI_PRM_TRG_SOURCE, XI_TRG_SOFTWARE);
    if( mvret != XI_OK){
        errMsg("Error while disabling external trigger source", mvret);
    }

    mvret = xiStartAcquisition(hmv);
    if(mvret != XI_OK)
    {
        errMsg("StartAcquisition XI_DEVICE failed", mvret);
        goto error;
    }
    xiSetParamInt(hmv, XI_PRM_TS_RST_MODE , XI_TS_RST_ARM_ONCE);
	xiSetParamInt(hmv, XI_PRM_TS_RST_SOURCE , XI_TS_RST_SRC_SW);

    isopened=true;
    return true;

error:
    errMsg("Open XI_DEVICE failed", mvret);
    xiCloseDevice(hmv);
    hmv = NULL;
    return false;
}