Imported Upstream version 0.72
This commit is contained in:
TANIGUCHI Takaki
204
tools/pngpack.c
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204
tools/pngpack.c
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/* pngpack: lossless image compression for a series of screen shots
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* Copyright (C) 2005-2009 Carsten Gnoerlich.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,
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* or direct your browser at http://www.gnu.org.
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*/
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#define VERSION "0.20"
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#include <getopt.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include "md5.h"
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#include "pngio.h"
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#include "codec.h"
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#include "decimate.h"
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#include "memory.h"
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/***
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*** main()
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***/
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typedef enum
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{ MODE_NONE,
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MODE_HELP,
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MODE_PACK,
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MODE_UNPACK,
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MODIFIER_THUMBS
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} run_mode;
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int main(int argc, char *argv[])
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{ int mode = MODE_NONE;
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char *arch_file = NULL;
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int thumbnails = 0;
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int thumb_width = 160;
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char *thumb_dir = strdup("../thumbnails");
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/*** Parse the options */
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for(;;)
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{ int option_index,c;
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static struct option long_options[] =
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{ {"help", 0, 0, 'h'},
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{"pack", 1, 0, 'p'},
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{"unpack", 1, 0, 'u'},
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{"thumbnails", 2, 0, 't'},
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{0, 0, 0, 0}
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};
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c = getopt_long(argc, argv,
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"hp:u:t::",
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long_options, &option_index);
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if(c == -1) break;
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switch(c)
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{ case 'p': mode = MODE_PACK;
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arch_file = strdup(optarg);
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break;
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case 'u': mode = MODE_UNPACK;
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arch_file = strdup(optarg);
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break;
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case 't': thumbnails=1;
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if(optarg)
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{ char *copy=strdup(optarg);
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char *comma=strchr(copy, ',');
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if(comma)
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{ *comma=0;
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thumb_width=atoi(copy);
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free(thumb_dir);
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thumb_dir=strdup(comma+1);
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free(copy);
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}
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else
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{ int val = strtol(optarg, NULL, 0);
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if(val > 0 ) thumb_width=val;
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else thumb_dir=copy;
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}
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}
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break;
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case 'h':
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case '?':
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mode = MODE_HELP; break;
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break;
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default: fprintf(stdout, "?? illegal getopt return value %d\n",c); break;
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}
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}
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/*** Perform the action */
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if(mode != MODE_NONE && mode != MODE_HELP)
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fprintf(stdout, "pngpack-0.20 *** Copyright 2005-2009 Carsten Gnoerlich.\n"
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"This software comes with ABSOLUTELY NO WARRANTY. This\n"
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"is free software and you are welcome to redistribute it\n"
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"under the conditions of the GNU GENERAL PUBLIC LICENSE.\n"
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"See the file \"COPYING\" for further information.\n\n");
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switch(mode)
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{ case MODE_PACK:
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{ Image *pi;
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int i;
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InitTileDatabase();
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for(i=optind; i<argc; i++)
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{
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pi = LoadPNG(argv[i]);
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if(!pi) continue;
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EncodeImage(pi);
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free(pi->image);
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}
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SavePPK(arch_file);
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FreeTileDatabase();
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}
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break;
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case MODE_UNPACK:
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{ Image **img_list;
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int img_n;
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unsigned int i;
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InitTileDatabase();
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LoadPPK(arch_file, &img_list, &img_n);
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for(i=0; i<img_n; i++)
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{ struct stat mystat;
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Image *pi = img_list[i];
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char *c;
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/* Do not overwrite existing files */
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if(stat(pi->name, &mystat) != -1)
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{ c = strrchr(pi->name, '.');
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if(c)
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{ char *n = malloc(strlen(pi->name)+2);
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*c = 0;
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sprintf(n, "_%s.png", pi->name);
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free(pi->name);
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pi->name = n;
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}
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}
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fprintf(stdout, "rendering %s (opcodes %d - %d)",pi->name,pi->first_opcode,pi->last_opcode);
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pi->bytesize = sizeof(unsigned int) * pi->width*pi->height;
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pi->image = malloc(pi->bytesize);
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if(!pi->image) Stop("out of memory for image");
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RenderImage(pi);
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SavePNG(pi, pi->name);
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if(thumbnails)
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SaveThumbnail(pi, pi->name, thumb_width, thumb_dir);
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free(pi->name);
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free(pi->image);
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}
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FreeTileDatabase();
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}
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break;
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case MODE_NONE:
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case MODE_HELP:
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fprintf(stdout, "Usage: pngpack [OPTION...] [FILE]...\n"
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"pngpack maintains archives of PNG images. Depending on the similarity between\n"
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"the images, very high compression ratios can be reached. It is especially\n"
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"suitable for distribution of screen shots for online documentation.\n\n"
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"Examples:\n"
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" pngpack --pack arch.pngpack img1.png img2.png ... - create archive\n"
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" pngpack --unpack arch.pngpack - unpack archive\n"
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" pngpack --unpack arch.pngpack --thumbnails 160 ../thumbs\n"
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" unpacks archive and creates thumbnails of width 160\n"
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" in the directory ../thumbs\n\n"
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"Main operation:\n"
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"-p, --pack=ARCH - pack png images into archive\n"
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"-u, --unpack=ARCH - unpack png images from archive\n\n"
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"Modifiers:\n"
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"-t, --thumbnails=WIDTH,DIR\n"
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" Create thumbnails while unpacking.\n"
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" Defaults are WIDTH=160 and DIR=../thumbnails\n");
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exit(EXIT_FAILURE);
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}
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free(arch_file);
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free(thumb_dir);
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#ifdef WITH_MEMDEBUG_YES
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CheckMemleaks();
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#endif
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return EXIT_SUCCESS;
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}
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