DM648 VICP problem with function CPIS_updateSrcDstPtr

Maxime GUYON

Hello,

I have a problem with the VICP function "CPIS_updateSrcDstPtr".

In my application i use the "Affine transform" funtion and it works great.
Now i need to update the source and destination pointer, but when i call "CPIS_updateSrcDstPtr",
the next call to CPIS_start never returns...

So to eliminate all error, i come back with the example project of the VICPlib "affineTransform_DM648" wich works great when i launch it.
When i just insert two line (update and reset see below) for CPIS_updateSrcDstPtr (i don't write a new value in CPIS_BaseParms, base→srcBuf[0] and ptr and base→dstBuf[0].ptr) It never returns when i call "CPIS_start":

        /*
            Call the module in asynchronous mode. This means only setup of 
            hardware is done. Execution will have to be triggered by CPIS_start
        */
        if (CPIS_affineTransform(
            &handle,
            &base,
            &params,
            CPIS_ASYNC
            )== -1) {
            printf("\nCPIS_affineTransform() error %d\n", CPIS_errno);
            exit(-1);
        };
        timerEnd= timerReadEnd ();
        setupTimerDiff= timerEnd-timerStart;

        /* Benchmark the actual processing */
        timerStart= timerReadStart ();

        //PROBLEM HERE
        CPIS_updateSrcDstPtr(handle,&base);
        CPIS_reset(handle);
    
        /* Trigger the start of processing */
        CPIS_start(handle);
        CPIS_wait(handle);//NEVER RETURN

Do you have any idea about the problem?

Thank you

Max.

over 13 years ago

0 Victor Cheng over 13 years ago

TI__Expert 6335 points

Hi,

I checked at the implementation of CPIS_updateSrcDstPtr() and realized that it won't work with CPIS_affineTransform(). In your use case, do you need to change the source or destination pointer ?

If it is just the destination pointer, you can implement a CPIS_updateDstPtr() function in _imgproclib.c as follow:

Int32 CPIS_updateDstPtr(CPIS_IpRun *ipRun, CPIS_BaseParms *base){

Int32 dmaIdx;
IP_run *ipRunObj;
ipRunObj= &ipRun->ipRunObj;

for (dmaIdx=0; dmaIdx<ipRunObj->numDmaOut; dmaIdx++)

ipRunObj->dmaOut[dmaIdx].ddrAddr= (Uint32)base->dstBuf[dmaIdx].ptr;

return 0;
}

If you need to change the source pointer, it will be more tricky ...

regards,

Victor

0 Maxime GUYON over 13 years ago in reply to Victor Cheng

Expert 1035 points

Hello Victor,

Thank you for your help,

I need to change the source and the destination pointer together...
Do you have a solution for update the source pointer?

I will try your solution for the destination pointer tomorrow....

Max.

0 Maxime GUYON over 13 years ago in reply to Maxime GUYON

Expert 1035 points

Hello,

I tried your solution to change the Destination pointer and it works well.
But now, i really need to change the source pointer too...

For the moment to do that i need to Delete function, change pointer and then put back the function in VICP...
It takes a lot of time to do that and it's not acceptable.

Do you have a solution?

Thank you.

Max

0 Victor Cheng over 13 years ago in reply to Maxime GUYON

TI__Expert 6335 points

Please add the following function in _affineTransform.c and then try to use it :

Int32 _CPIS_setAffineTransformSrcAddr(
CPIS_BaseParms *base,
Int32 newSrcBufPtr, /* new srcPtr value */
Int32 oldSrcBufPtr, /* need to pass old srcPtr value */
void *p) {

CPIS_AffineTransformParms *params;
_CPIS_AffineTransformPrivate* privateVars;
TferParamEntry* inTferParamTable;

Int16 x, y, incX, incY;
Uint32 index;

incX= base->procBlockSize.width;
incY= base->procBlockSize.height;

params= (CPIS_AffineTransformParms *)p;
privateVars= (_CPIS_AffineTransformPrivate*)params->privateVars;
inTferParamTable= (TferParamEntry*)params->scratch;

index=0;

for (y=privateVars->outerRoi_yul; y >= privateVars->outerRoi_ylr; y-= incY)
for (x=privateVars->outerRoi_xul; x <= privateVars->outerRoi_xlr; x+= incX) {

inTferParamTable[index].in.ddrAddr= inTferParamTable[index].in.ddrAddr - oldSrcBufPtr + newSrcBufPtr;

index++;
}

return 0;

}

0 Maxime GUYON over 13 years ago in reply to Victor Cheng

Expert 1035 points

Hello Victor,

Thank you a lot for your attention and your speed,
all seem to works great!

For reader of this thread: don't forget to put the right flag in the handle before reset:

h->resetFlag= IP_RUN_RESET_OUTPUT_ADDR|IP_RUN_RESET_INPUT_ADDR;

If you forget it, you can have some dirty data transferred and it makes a sort of noise on the screen.

Max.

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DM648 VICP problem with function CPIS_updateSrcDstPtr