libs/libkdcraw/libraw/samples/dcraw_half.c

   1 /* -*- C++ -*-
   2  * File: simple_dcraw_c.c
   3  * Copyright 2008 Alex Tutubalin <lexa@lexa.ru>
   4  * Created: Sat Mar  8 , 2008
   5  *
   6  * LibRaw  C API sample  (emulates call to "dcraw  -h")
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  21  * 02111-1307, USA.
  22  */
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include <stdlib.h>
  26 #include <math.h>
  27
  28 #include "libraw/libraw.h"
  29
  30
  31 #define HANDLE_FATAL_ERROR(ret)\
  32     if(ret)\
  33         {\
  34             fprintf(stderr,"%s: libraw  %s\n",av[i],libraw_strerror(ret));\
  35             if(LIBRAW_FATAL_ERROR(ret))\
  36                 exit(1);               \
  37         }\
  38
  39 #define HANDLE_ALL_ERRORS(ret)\
  40     if(ret)\
  41         {\
  42             fprintf(stderr,"%s: libraw  %s\n",av[i],libraw_strerror(ret));\
  43             continue;                                                   \
  44         }\
  45
  46
  47 int main(int ac, char *av[])
  48 {
  49     int i;
  50     libraw_data_t *iprc = libraw_init(0);
  51
  52     if(!iprc)
  53         {
  54             fprintf(stderr,"Cannot create libraw handle\n");
  55             exit(1);
  56         }
  57
  58     iprc->params.half_size = 1; /* dcraw -h */
  59
  60     for (i=1;i<ac;i++)
  61         {
  62             char outfn[1024];
  63                         int ret = libraw_open_file(iprc,av[i]);
  64             HANDLE_ALL_ERRORS(ret);
  65
  66             printf("Processing %s (%s %s)\n",av[i],iprc->idata.make,iprc->idata.model);
  67
  68             ret = libraw_unpack(iprc);
  69             HANDLE_ALL_ERRORS(ret);
  70
  71             ret = libraw_dcraw_process(iprc);
  72             HANDLE_ALL_ERRORS(ret);
  73
  74             strcpy(outfn,av[i]);
  75             strcat(outfn,".ppm");
  76             printf("Writing to %s\n",outfn);
  77
  78             ret = libraw_dcraw_ppm_tiff_writer(iprc,outfn);
  79             HANDLE_FATAL_ERROR(ret);
  80         }
  81     libraw_close(iprc);
  82     return 0;
  83 }