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June 2004

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2004.06.15 05:03 "help", by Rajanikanth T

Hi, 
I tried using mfs_open() call to open memory file. but i am getting
segmentation fault at _malloc_unlocked() 
can u tell me what wrong with this code?
---->  start

   fd = mfs_open (tiff_image,311226,"r"); /*tiff_image containes image data
of size 311226*/
   tiffin = TIFFFdOpen(fd,"test" , "r");   /* test is dummy name*/ 

  TIFFGetField(tiffin, TIFFTAG_IMAGEWIDTH, &width);   /*get tif image width
*/
  TIFFGetField(tiffin, TIFFTAG_IMAGELENGTH, &height); /*get tif image height
*/

  npixels = width * height;
  raster = (uint32*) _TIFFmalloc(npixels*sizeof(uint32));
  buf = matrixCalloc (height, width);/* allocate memory */
  
  if (raster != NULL)
    {			
    if (TIFFReadRGBAImage(tiffin, width, height, raster, 0)) /*8 bit image*/
      {
      for (i=0; i<height; i++)
        {
	for (j=0; j<width; j++)
          {
	  buf[(height-1)-i][j] = TIFFGetR(raster[i*width+j]);
	  }
	}
      }
    }
  
  TIFFClose(tiffin);
------>End

-----------------------------------------------
Rajanikanth T
KnS, HCL Technologies
Bangalore.
Contact No: 098860 68983 
Office No   : 080-51197748 Ext: 4137
http://hellorajni.8m.com
-----------------------------------------------
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