PalmPhotoReadImage

[Micky MeNeZeS]

Hi all,

 

Now I am able to read the image using PalmPhotoImageRead API. Callback
function get called for several time with size = 16384.

Image I am trying to read is of size 54059. After comparing original image
and the data I am reading I found that only first part (16384 bytes) is
identical.

Following is the way I am reading the file. 

 

 

///////////

UInt32 pos=0;

////////////////////////////////////////////////////////////////////////////
////////////////////

//Following is the callback code

////////////////////////////////////////////////////////////////////////////
////////////////////

Err PhotoReadCallBack(void* bufferP, UInt32* size, void *userDataP)

{

MemMove (userDataP+pos, bufferP, *size);

Pos += *size; 

}

 

 

////////////////////////////////////////////////////////////////////////////
//////////////////////

//To read the image

////////////////////////////////////////////////////////////////////////////
//////////////////////

Err SendImage (int fp, UInt16 AppNetRefNum, UInt16 ref, PalmPhotoHandle
aHandle)

{

      Err               err;

      Err                      errno;

      Char*             aMessage;

      PalmPhotoReadWriteParam aReadParam;

      PalmPhotoImageInfo            aImageInfo;

      Int32 timeout;

      UInt32 bCount = 0;

      Int16 num = 0;

      Char *      aLength = NULL;

      

      timeout = SysTicksPerSecond()*1;

      

      //Get image imformation

 

      err = PalmPhotoGetImageInfo (ref, aHandle, &aImageInfo);

      if (err != errNone)

            return err;

      

      //Creae http header

      aMessage = (Char*) MemPtrNew (100);

      MemSet (aMessage, 100, '\0');

      //write HTTP header

      StrCopy(aMessage, HTTPPrefix);

      StrCat (aMessage, KCRLF);

      NetLibSend(netRef, netFp, aMessage, StrLen(aMessage),
0,0,0,timeout,&err);

      MemSet (aMessage, 100, '\0');

      //write content type header

      StrCopy(aMessage, KHeadContentType);

      StrCat(aMessage, KColonSpace);

      StrCat(aMessage, "image/jpg");//this is hard coded right now

      StrCat(aMessage, KCRLF);

      NetLibSend(netRef, netFp, aMessage, StrLen(aMessage),
0,0,0,timeout,&err);

      MemSet (aMessage, 100, '\0');

      //write content length header

      StrCopy (aMessage, KHeadContentLength);

      StrCat(aMessage, KColonSpace);

      aLength = (Char*) MemPtrNew(maxStrIToALen+1);

      aLength = StrIToA(aLength, aImageInfo.filesize);

      StrCat (aMessage, aLength);

      StrCat(aMessage, KCRLF);

      StrCat(aMessage, KCRLF);

      NetLibSend(netRef, netFp, aMessage, StrLen(aMessage),
0,0,0,timeout,&err);

      MemSet (aMessage, 100, '\0');

      MemPtrFree (aLength);

      MemPtrFree (aMessage);

      //write body

      aReadParam.imageFormat = aImageInfo.fileFormat;

      aReadParam.rwCallback = PhotoReadCallBack;

      aReadParam.userDataP =MemPtrNew(aImageInfo.filesize);

      

      //read image 

      err = PalmPhotoReadImage(ref, aHandle, &aReadParam);

      while(bCount<=aImageInfo.filesize)

      {

            num = NetLibSend(netRef, netFp, (aReadParam.userDataP+bCount),
1536, 0,0,0,timeout,&err);

            bCount += num;

      }

      MemPtrFree(aReadParam.userDataP);

      return err;

}     

 

Please help me on this.

 

Thanks and Regards,

Micky Menezes

 

 


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