void* FastCMOS::getLastFrame() {
/*
imgSessionAcquire(session, 0, 0);
void *r = buffers[curBuf];
curBuf = (curBuf+1) % buffers.size();*/
uInt32 bufnum;
void* bufaddr;
checkIMAQ(imgSessionExamineBuffer2(session, IMG_CURRENT_BUFFER, &bufnum, &bufaddr));
dbgprintf("bufnum: %d\n",bufnum);
return bufaddr;
}
static GstFlowReturn
gst_niimaqsrc_create (GstPushSrc * psrc, GstBuffer ** buffer)
{
GstNiImaqSrc *src = GST_NIIMAQSRC (psrc);
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime timestamp;
GstClockTime duration;
uInt32 copied_number;
uInt32 copied_index;
Int32 rval;
uInt32 dropped;
gboolean no_copy;
GstMapInfo minfo;
/* we can only do a no-copy if strides are property byte aligned */
no_copy = src->avoid_copy && src->width == src->rowpixels;
/* start the IMAQ acquisition session if we haven't done so yet */
if (!src->session_started) {
if (!gst_niimaqsrc_start_acquisition (src)) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Unable to start acquisition."), (NULL));
return GST_FLOW_ERROR;
}
}
if (no_copy) {
GST_LOG_OBJECT (src,
"Sending IMAQ buffer #%d along without copying", src->cumbufnum);
*buffer = gst_buffer_new ();
if (G_UNLIKELY (*buffer == NULL))
goto error;
} else {
GST_LOG_OBJECT (src, "Copying IMAQ buffer #%d, size %d",
src->cumbufnum, src->framesize);
ret =
GST_BASE_SRC_CLASS (gst_niimaqsrc_parent_class)->alloc (GST_BASE_SRC
(src), 0, src->framesize, buffer);
if (ret != GST_FLOW_OK) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Failed to allocate buffer"),
("Failed to get downstream pad to allocate buffer"));
goto error;
}
}
//{
// guint32 *data;
// int i;
// rval = imgSessionExamineBuffer2 (src->sid, src->cumbufnum, &copied_number, &data);
// for (i=0; i<src->bufsize;i++)
// if (data == src->buflist[i])
// break;
// timestamp = src->times[i];
// memcpy (GST_BUFFER_DATA (*buffer), data, src->framesize);
// src->times[i] = GST_CLOCK_TIME_NONE;
// imgSessionReleaseBuffer (src->sid); //TODO: mutex here?
//}
if (no_copy) {
/* FIXME: with callback change, is this broken now? mutex... */
gpointer data;
rval =
imgSessionExamineBuffer2 (src->sid, src->cumbufnum,
&copied_number, &data);
gst_buffer_append_memory (*buffer,
gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY, data,
src->framesize, 0, src->framesize, src,
gst_niimaqsrc_release_buffer));
} else if (src->width == src->rowpixels) {
/* TODO: optionally use ExamineBuffer and byteswap in transfer (to offer BIG_ENDIAN) */
gst_buffer_map (*buffer, &minfo, GST_MAP_WRITE);
g_mutex_lock (&src->mutex);
rval =
imgSessionCopyBufferByNumber (src->sid, src->cumbufnum,
minfo.data, IMG_OVERWRITE_GET_OLDEST, &copied_number, &copied_index);
timestamp = src->times[copied_index];
src->times[copied_index] = GST_CLOCK_TIME_NONE;
g_mutex_unlock (&src->mutex);
gst_buffer_unmap (*buffer, &minfo);
} else {
gst_buffer_map (*buffer, &minfo, GST_MAP_WRITE);
g_mutex_lock (&src->mutex);
rval =
imgSessionCopyAreaByNumber (src->sid, src->cumbufnum, 0, 0,
src->height, src->width, minfo.data, src->rowpixels,
IMG_OVERWRITE_GET_OLDEST, &copied_number, &copied_index);
timestamp = src->times[copied_index];
src->times[copied_index] = GST_CLOCK_TIME_NONE;
g_mutex_unlock (&src->mutex);
gst_buffer_unmap (*buffer, &minfo);
}
/* TODO: do this above to reduce copying overhead */
if (src->is_signed) {
gint16 *src;
guint16 *dst;
guint i;
gst_buffer_map (*buffer, &minfo, GST_MAP_READWRITE);
src = minfo.data;
dst = minfo.data;
GST_DEBUG_OBJECT (src, "Shifting signed to unsigned");
/* TODO: make this faster */
for (i = 0; i < minfo.size / 2; i++)
*dst++ = *src++ + 32768;
gst_buffer_unmap (*buffer, &minfo);
}
if (rval) {
gst_niimaqsrc_report_imaq_error (rval);
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("failed to copy buffer %d", src->cumbufnum),
("failed to copy buffer %d", src->cumbufnum));
goto error;
}
/* make guess of duration from timestamp and cumulative buffer number */
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
duration = timestamp / (copied_number + 1);
} else {
duration = 33 * GST_MSECOND;
}
GST_BUFFER_OFFSET (*buffer) = copied_number;
GST_BUFFER_OFFSET_END (*buffer) = copied_number + 1;
GST_BUFFER_TIMESTAMP (*buffer) =
timestamp - gst_element_get_base_time (GST_ELEMENT (src));
GST_BUFFER_DURATION (*buffer) = duration;
dropped = copied_number - src->cumbufnum;
if (dropped > 0) {
src->n_dropped_frames += dropped;
GST_WARNING_OBJECT (src,
"Asked to copy buffer #%d but was given #%d; just dropped %d frames (%d total)",
src->cumbufnum, copied_number, dropped, src->n_dropped_frames);
}
/* set cumulative buffer number to get next frame */
src->cumbufnum = copied_number + 1;
src->n_frames++;
if (G_UNLIKELY (src->start_time && !src->start_time_sent)) {
GstTagList *tl =
gst_tag_list_new (GST_TAG_DATE_TIME, src->start_time, NULL);
GstEvent *e = gst_event_new_tag (tl);
GST_DEBUG_OBJECT (src, "Sending start time event: %" GST_PTR_FORMAT, e);
gst_pad_push_event (GST_BASE_SRC_PAD (src), e);
src->start_time_sent = TRUE;
}
return ret;
error:
{
return ret;
}
}
void AcquireThreadBasler::BaslerAcquire (void)
{
sprintf_s(intfName, "img0");//img0 Basler///img3 Atmel
imgInterfaceOpen (intfName, &Iid);
imgSessionOpen (Iid, &Sid);
AcqWinWidth = globalOptions->IMAGEWIDTH;
AcqWinHeight = globalOptions->IMAGEHEIGHT;
imgSetAttribute2 (Sid, IMG_ATTR_ROI_WIDTH, AcqWinWidth);
imgSetAttribute2 (Sid, IMG_ATTR_ROI_HEIGHT, AcqWinHeight);
imgSessionTriggerConfigure2(Sid, IMG_SIGNAL_EXTERNAL, 0,
IMG_TRIG_POLAR_ACTIVEH, 5000,
IMG_TRIG_ACTION_BUFFER);
for(int i=0; i<NUM_RING_BUFFERS; i++)
ImaqBuffers[i] = NULL;
// Setup and launch the ring acquisition
imgRingSetup (Sid, NUM_RING_BUFFERS, (void**)ImaqBuffers, 0, TRUE);
uInt32 currBufNum;
//Infinite Loop
//Temporarily we have incorporated an infinite loop. Stop the program execution by closing the program.
//Threads can also be suspended and resumed via the start/stop buttons
while (true)
{
DataFramePos = RawData; //Reset the DataFramePos pointer to the beginning, pointed to by RawData
if (globalOptions->volumeReady < 1)
{
for (int framenum=0; framenum < globalOptions->NumFramesPerVol; framenum++)
{
if (breakLoop)
break;
imgSessionExamineBuffer2 (Sid, IMG_CURRENT_BUFFER , &currBufNum, (void**)&ImaqBuffer);
if (!ImaqBuffer) { //Check if Basler Camera is on and properly connected
printf("ERROR: Basler Camera is either off, or miscommunication with framegrabber.\n Exiting Program...\n");
Sleep(2000);
exit(1);
}
memcpy(DataFramePos, ImaqBuffer, AcqWinHeight*AcqWinWidth*sizeof(unsigned short));
DataFramePos = &DataFramePos[AcqWinHeight*AcqWinWidth];
imgSessionReleaseBuffer (Sid);
if(!globalOptions->bVolumeScan)
DataFramePos = RawData;
}
if (breakLoop) {
breakLoop = false; //Reset the breakLoop flag after each time
} else {
globalOptions->volumeReady++;
}
}
else
{
if(globalOptions->saveVolumeflag == true)
{
fwrite(DataFramePos,2,AcqWinWidth*AcqWinHeight*globalOptions->NumFramesPerVol,globalOptions->fid);
globalOptions->saveVolumeflag =false;
fclose(globalOptions->fid);
ScanThrPtr->InitializeSyncAndScan();
}
globalOptions->volumeReady = 0;
}
}
}
