cv::Mat E2VCameraDirectRead::GetImage()
{
if (HasBeenInited)
{
//acquire one image per subbuffer
//1.fg
//2.采集卡口
//3.采集帧数
//4.？
//5.缓存地址
if ((Fg_AcquireEx(E2VCameraModel::fg, _camPort, 1, ACQ_STANDARD, memHandle)) < 0) {
fprintf(stderr, "Fg_AcquireEx() failed: %s\n", Fg_getLastErrorDescription(fg));
errorMessageWait();
return cv::Mat();
}
frameindex_t fcount = 0;
frameindex_t last_pic_nr = 0;
frameindex_t cur_pic_nr;
cv::Mat OriginalImage;
cur_pic_nr = Fg_getLastPicNumberBlockingEx(fg, last_pic_nr + 1, _camPort, 100, memHandle);
if (cur_pic_nr < 0)
{
Fg_stopAcquire(fg, _camPort);
errorMessageWait(); return cv::Mat();
}
unsigned char *bytePtr = (unsigned char*)Fg_getImagePtrEx(fg, cur_pic_nr, 0, memHandle);
//if (nId != -1)
// ::DrawBuffer(nId, Fg_getImagePtrEx(fg, lastPicNr, 0, memHandle), (int)lastPicNr, "");
OriginalImage = cv::Mat(_frameHeight, _width, CV_8UC3, bytePtr).clone();
if (_colorType == GRAY)
{
cv::cvtColor(OriginalImage, OriginalImage, CV_BGR2GRAY);
}
fcount++;
Fg_stopAcquireEx(fg, _camPort, memHandle, 0);
return OriginalImage;
}
else
return cv::Mat();
}
int close_cam(Fg_Struct *fg)
{
if(Fg_setExsync(fg, FG_OFF, PORT_A) < 0) {
printf("sync off: %s\n", Fg_getLastErrorDescription(fg));
}
if(Fg_stopAcquire(fg, PORT_A) != FG_OK) {
printf("stop acq: %s\n", Fg_getLastErrorDescription(fg));
}
if(FastConfigFree(PORT_A) != FG_OK) {
printf("FC free: %s\n", Fg_getLastErrorDescription(fg));
}
if(Fg_FreeGrabber(fg) != FG_OK) {
printf("free grabber: %s\n", Fg_getLastErrorDescription(fg));
}
return FG_OK;
}
void Camera::close(){
Fg_stopAcquire(fg,camPort);
Fg_FreeMemEx(fg, memHandle);
Fg_FreeGrabber(fg);
free(serialRefPtr);
}
void Camera::stop(){
Fg_stopAcquire(fg,camPort);
}
