Image Buffer Pixel Array?

height*sizeof(PF_Pixel8));

 

    unsigned char * data;
    data = new unsigned char[num] ;
                       
    for(int y = 0; y < output->height; y++)
     {

 

        memcpy(&data[y*output->width*sizeof(PF_Pixel8)], (char *)&params[LAYER_INPUT]->u.ld.data+params[LAYER_INPUT]->u.ld.rowbytes* y, output->width*sizeof(PF_Pixel8));
       
}
   

 

To test whether its working or not, I have the following snippet         
    for(int y = 0; y < output->height; y++)
    {

 

        memcpy((char *)output->data+output->rowbytes*y,&data[y*output->width*sizeof(PF_Pix el8)] , output->width*sizeof(PF_Pixel8));
        
     }
   
   
    delete [] data;

 

But, then image is all glitched and jaggy when I test it. What did I do wrong?