X742DecodeRoutines.h File Reference

#include <CAENDigitizer.h>

Go to the source code of this file.

Macros
#define	EVENT_HEADER_SIZE   0x10
#define	X742_MAX_GROUPS   0x04
#define	MAX_X742_CHANNEL_SIZE   0x09
#define	X742_FIXED_SIZE   0x400

Functions
int32_t	GetNumEvents (char *buffer, uint32_t buffsize, uint32_t *numEvents)
int32_t	GetEventPtr (char *buffer, uint32_t buffsize, int32_t numEvent, char **EventPtr)
int32_t	X742_DecodeEvent (char *evtPtr, void **Evt)

Macro Definition Documentation

#define EVENT_HEADER_SIZE   0x10

Definition at line 3 of file X742DecodeRoutines.h.

Referenced by GetEventPtr(), GetNumEvents(), and X742_DecodeEvent().

#define MAX_X742_CHANNEL_SIZE   0x09

Definition at line 5 of file X742DecodeRoutines.h.

#define X742_FIXED_SIZE   0x400

Definition at line 6 of file X742DecodeRoutines.h.

Referenced by X742_DecodeEvent().

#define X742_MAX_GROUPS   0x04

Definition at line 4 of file X742DecodeRoutines.h.

Referenced by X742_DecodeEvent().

Function Documentation

int32_t GetEventPtr	(	char *	buffer,
		uint32_t	buffsize,
		int32_t	numEvent,
		char **	EventPtr
	)

Definition at line 117 of file X742DecodeRoutines.c.

References EVENT_HEADER_SIZE, and i.

                                                                                        {
        uint32_t i = 0;
        int32_t counter = -1;
        int ret;
        int evtSize;
        
        if ((buffer == NULL) || (buffsize < EVENT_HEADER_SIZE)) return -1;
        do {
                counter++;
                evtSize = *(long *)(buffer+i) & 0x0FFFFFFF;
                if (counter == numEvent) {
                        if ((i + (uint32_t) evtSize) < buffsize) {
                                *EventPtr =(buffer+i);
                                return 0;
                        }
                        else return -1;
                }
                i += (uint32_t) (evtSize *4);
        } while ((i + EVENT_HEADER_SIZE) < buffsize);
        return -1;
}

int32_t GetNumEvents	(	char *	buffer,
		uint32_t	buffsize,
		uint32_t *	numEvents
	)

Definition at line 99 of file X742DecodeRoutines.c.

References EVENT_HEADER_SIZE, and i.

                                                                           {
        uint32_t i = 0,evtSize;
        int ret;
        int32_t counter = -1;
    if ((buffsize == 0) || (buffer == NULL)){
        *numEvents = 0;
        return 0;
    }
        if (buffsize < EVENT_HEADER_SIZE) return -1;
        do {
                counter++;
                evtSize = *(long *)(buffer+i) & 0x0FFFFFFF;
                i += (uint32_t) (evtSize * 4);
        } while ((i + EVENT_HEADER_SIZE) < buffsize);
        *numEvents = counter + 1;
        return 0;
}

int32_t X742_DecodeEvent	(	char *	evtPtr,
		void **	Evt
	)

Definition at line 139 of file X742DecodeRoutines.c.

References CAEN_DGTZ_X742_GROUP_t::DataChannel, CAEN_DGTZ_X742_EVENT_t::DataGroup, EVENT_HEADER_SIZE, CAEN_DGTZ_X742_EVENT_t::GrPresent, h, MAX_X742_CHANNEL_SIZE, size, V1742UnpackEventGroup(), X742_FIXED_SIZE, and X742_MAX_GROUPS.

                                                   {
        CAEN_DGTZ_X742_EVENT_t *Event;
        uint32_t *buffer;
        char chanMask;
        uint32_t j,g,size;
        uint32_t *pbuffer;
        uint32_t eventSize;
        int evtSize,h;

        evtSize = *(long *)evtPtr & 0x0FFFFFFF;
        chanMask = *(long *)(evtPtr+4) & 0x0000000F;
        evtPtr += EVENT_HEADER_SIZE;
        buffer = (uint32_t *) evtPtr;
        pbuffer = (uint32_t *) evtPtr;
        eventSize = (evtSize * 4) - EVENT_HEADER_SIZE;
        if (eventSize == 0) return -1;
        Event = (CAEN_DGTZ_X742_EVENT_t *) malloc(sizeof(CAEN_DGTZ_X742_EVENT_t));
        if (Event == NULL) return -1;
        memset( Event, 0, sizeof(CAEN_DGTZ_X742_EVENT_t));
        for (g=0; g<X742_MAX_GROUPS; g++) {
                if ((chanMask >> g) & 0x1) {
                for (j=0; j<MAX_X742_CHANNEL_SIZE; j++) {
                        Event->DataGroup[g].DataChannel[j]= malloc(X742_FIXED_SIZE * sizeof (float));
                        if (Event->DataGroup[g].DataChannel[j] == NULL) {
                                for (h=j-1;h>-1;h++) free(Event->DataGroup[g].DataChannel[h]);
                                return -1;
                        }
                }
                size=V1742UnpackEventGroup(g,pbuffer,&(Event->DataGroup[g]));
                pbuffer+=size;
                Event->GrPresent[g] = 1;        
                } 
                else {
                        Event->GrPresent[g] = 0;
                        for (j=0; j<MAX_X742_CHANNEL_SIZE; j++) {
                                Event->DataGroup[g].DataChannel[j] = NULL;
                        }
                }
        }
    *Evt = Event;
        return 0;
}

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