/* -*- C++ -*-
 * File: dcraw_half.c
 * Copyright 2008-2015 LibRaw LLC (info@libraw.org)
 * Created: Sat Mar  8 , 2008
 *
 * LibRaw  C API sample:  emulates "dcraw  -h"
 *
LibRaw is free software; you can redistribute it and/or modify
it under the terms of the one of three licenses as you choose:

1. GNU LESSER GENERAL PUBLIC LICENSE version 2.1
   (See file LICENSE.LGPL provided in LibRaw distribution archive for details).

2. COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0
   (See file LICENSE.CDDL provided in LibRaw distribution archive for details).

3. LibRaw Software License 27032010
   (See file LICENSE.LibRaw.pdf provided in LibRaw distribution archive for details).



 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>

#include "libraw/libraw.h"


#define HANDLE_FATAL_ERROR(ret)\
    if(ret)\
        {\
            fprintf(stderr,"%s: libraw  %s\n",av[i],libraw_strerror(ret));\
            if(LIBRAW_FATAL_ERROR(ret))\
                exit(1);               \
        }\

#define HANDLE_ALL_ERRORS(ret)\
    if(ret)\
        {\
            fprintf(stderr,"%s: libraw  %s\n",av[i],libraw_strerror(ret));\
            continue;                                                   \
        }\


int main(int ac, char *av[])
{
    int i;
    libraw_data_t *iprc = libraw_init(0);

    if(!iprc)
        {
            fprintf(stderr,"Cannot create libraw handle\n");
            exit(1);
        }

    iprc->params.half_size = 1; /* dcraw -h */
	
    for (i=1;i<ac;i++)
        {
            char outfn[1024];
			int ret = libraw_open_file(iprc,av[i]);
            HANDLE_ALL_ERRORS(ret);
            
            printf("Processing %s (%s %s)\n",av[i],iprc->idata.make,iprc->idata.model);

            ret = libraw_unpack(iprc);
            HANDLE_ALL_ERRORS(ret);

            ret = libraw_dcraw_process(iprc);
            HANDLE_ALL_ERRORS(ret);
            
            strcpy(outfn,av[i]);
            strcat(outfn,".ppm");
            printf("Writing to %s\n",outfn);

            ret = libraw_dcraw_ppm_tiff_writer(iprc,outfn);
            HANDLE_FATAL_ERROR(ret);
        }
    libraw_close(iprc);
    return 0;
}
