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Process image in epics layer when arrive a new frame from device

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This commit is contained in:
Douglas Araujo
2022-07-20 09:39:31 +02:00
parent b5a86914db
commit 778691a8ae
2 changed files with 54 additions and 47 deletions
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99
ADHamaApp/src/hama.cpp
View File

@@ -488,6 +488,7 @@ epicsTimeStamp imageStamp;
int callback;
int acquireStatusError = 0;
int eventStatus=0;
uint64_t prevAcquisitionCount = 0;
epicsTimeStamp startTime; // endTime;
DCAMCAP_TRANSFERINFO captransferinfo;
@@ -515,6 +516,7 @@ epicsTimeStamp imageStamp;
acquire = 1;
/* Get the current time */
epicsTimeGetCurrent(&startTime);
prevAcquisitionCount = 0;
}
}
@@ -531,55 +533,60 @@ epicsTimeStamp imageStamp;
/* Added this delay for the thread not to hog the processor. No need to run on full speed. */
epicsThreadSleep(0.01);
// get current image transfer status.
// get image transfer status.
imageTransferStatus(m_hdcam, captransferinfo);
// get image information
int32 pixeltype = 0, width = 0, rowbytes = 0, height = 0, framebytes = 0;
getImageInformation(m_hdcam, pixeltype, width, rowbytes, height, framebytes);
if (prevAcquisitionCount < captransferinfo.nFrameCount) {
//printf("nFrameCount: %d, nNewestFrameIndex: %d\n", captransferinfo.nFrameCount, captransferinfo.nNewestFrameIndex);
prevAcquisitionCount = captransferinfo.nFrameCount;
if( pixeltype != DCAM_PIXELTYPE_MONO16 ) {
printf( "not implement\n" );
return;
}
setIntegerParam(NDArraySizeX, (int)width);
setIntegerParam(NDArraySizeY, (int)height);
/* Do callbacks so higher layers see any changes */
callParamCallbacks();
image = new unsigned char[width * 2 * height];
memset(image, 0, width * 2 * height);
// get image information
int32 pixeltype = 0, width = 0, rowbytes = 0, height = 0, framebytes = 0;
getImageInformation(m_hdcam, pixeltype, width, rowbytes, height, framebytes);
count++;
accessCapturedImage(m_hdcam, captransferinfo.nNewestFrameIndex, image, width * 2, width, height);
getIntegerParam(NDArrayCallbacks, &callback);
if(callback) {
NDArray *pImage;
size_t dims[2];
int itemp=0;
getIntegerParam(NDArraySizeX, &itemp); dims[0] = itemp;
getIntegerParam(NDArraySizeY, &itemp); dims[1] = itemp;
pImage = pNDArrayPool->alloc(2, dims, NDUInt16, 0, 0);
if(pImage) {
pImage->uniqueId = count;
pImage->timeStamp = imageStamp.secPastEpoch +
(imageStamp.nsec / 1.0e9);
updateTimeStamp(&pImage->epicsTS);
memcpy(pImage->pData, (epicsUInt16 *)image, pImage->dataSize);
getAttributes(pImage->pAttributeList);
doCallbacksGenericPointer(pImage, NDArrayData, 0);
pImage->release();
if( pixeltype != DCAM_PIXELTYPE_MONO16 ) {
printf( "not implement\n" );
return;
}
}
setIntegerParam(NDArraySizeX, (int)width);
setIntegerParam(NDArraySizeY, (int)height);
/* Do callbacks so higher layers see any changes */
callParamCallbacks();
image = new unsigned char[width * 2 * height];
memset(image, 0, width * 2 * height);
delete[] image;
count++;
accessCapturedImage(m_hdcam, captransferinfo.nNewestFrameIndex, image, width * 2, width, height);
getIntegerParam(NDArrayCallbacks, &callback);
if(callback) {
NDArray *pImage;
size_t dims[2];
int itemp=0;
getIntegerParam(NDArraySizeX, &itemp); dims[0] = itemp;
getIntegerParam(NDArraySizeY, &itemp); dims[1] = itemp;
pImage = pNDArrayPool->alloc(2, dims, NDUInt16, 0, 0);
if(pImage) {
pImage->uniqueId = count;
pImage->timeStamp = imageStamp.secPastEpoch +
(imageStamp.nsec / 1.0e9);
updateTimeStamp(&pImage->epicsTS);
memcpy(pImage->pData, (epicsUInt16 *)image, pImage->dataSize);
getAttributes(pImage->pAttributeList);
doCallbacksGenericPointer(pImage, NDArrayData, 0);
pImage->release();
}
}
delete[] image;
}
}
}
//============================================================================
@@ -1009,7 +1016,7 @@ asynStatus Hama::startAcquire(void)
// start capture
m_err = dcamcap_start(m_hdcam, DCAMCAP_START_SEQUENCE);
if(failed(m_err)) {
printError( m_hdcam, m_err, "dcamcap_start()" );
printError(m_hdcam, m_err, "dcamcap_start()");
status = asynError;
}
else {
@@ -1019,7 +1026,7 @@ asynStatus Hama::startAcquire(void)
memset( &waitstart, 0, sizeof(waitstart) );
waitstart.size = sizeof(waitstart);
waitstart.eventmask = DCAMWAIT_CAPEVENT_FRAMEREADY;
waitstart.timeout = 1000;
waitstart.timeout = DCAMWAIT_TIMEOUT_INFINITE;
m_err = dcamwait_start(hwait, &waitstart);
if(failed(m_err)) {
@@ -1131,7 +1138,7 @@ void Hama::getImageInformation(HDCAM hdcam, int32& pixeltype, int32& width, int3
framebytes = (int32)property_value;
}
asynStatus Hama::imageTransferStatus(HDCAM hdcam, DCAMCAP_TRANSFERINFO captransferinfo)
asynStatus Hama::imageTransferStatus(HDCAM hdcam, DCAMCAP_TRANSFERINFO &captransferinfo)
{
DCAMERR err;
// transferinfo param

2
ADHamaApp/src/hama.h
View File

@@ -270,7 +270,7 @@ private:
asynStatus startAcquire(void);
void getImageInformation(HDCAM hdcam, int32& pixeltype, int32& width, int32& rowbytes, int32& height, int32& framebytes);
asynStatus accessCapturedImage(HDCAM hdcam, int32 iFrame, void* buf, int32 rowbytes, int32 cx, int32 cy);
asynStatus imageTransferStatus(HDCAM hdcam, DCAMCAP_TRANSFERINFO captransferinfo);
asynStatus imageTransferStatus(HDCAM hdcam, DCAMCAP_TRANSFERINFO &captransferinfo);
// wrapper functions for dcamapi