144 lines
3.5 KiB
C
144 lines
3.5 KiB
C
/*
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----------------------------------------------
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utilitaire pour ditherizer (uh?) une image
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----------------------------------------------
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http://krabulator.free.fr/devel/libimage.html
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----------------------------------------------
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tga_outils.h"
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/*::------------------------------------------------------------------::*/
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#define DI_2X2 2
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#define DI_3X3_0 11
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#define DI_3X3_1 12
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#define DI_BAYER0 16
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#define DI_ATKINSON 18
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#define DI_CRUDE 30
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#define DI_DBLTR 38
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#define DI_ERROR 45
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#define DI_RANDOM 60
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#define DI_BYR8RND 70
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#define DI_XPER 100
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mot_clef mots_clef[] =
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{
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{ "2x2", DI_2X2, "", "not working" },
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{ "3x3_0", DI_3X3_0, "", "" },
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{ "3x3_1", DI_3X3_1, "", "" },
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{ "bayer0", DI_BAYER0, "", "" },
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{ "atkinson", DI_ATKINSON, "i", "mmmm ?" },
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{ "crude", DI_CRUDE, "i", "" },
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{ "dbltresh", DI_DBLTR, "ii", "hi & low tresholds" },
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{ "error", DI_ERROR, "", "simple err diffusion" },
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{ "random", DI_RANDOM, "i", "random treshold" },
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{ "byr8rnd", DI_BYR8RND, "ii", "new 29 nov 2013" },
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{ "xper", DI_XPER, "i", "param: 1..254" },
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{ NULL, 0, NULL, NULL }
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};
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/*::------------------------------------------------------------------::*/
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void usage(int flag)
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{
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fprintf(stderr, "* tga_dither v 0.0.26 [%s] (dwtfywl 2022) tTh\n",
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TGA_OUTILS_VERSION);
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fprintf(stderr, "usage:\n\ttga_dither avant.tga mode avant.tga [params]\n");
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if (flag)
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liste_mots_clefs(mots_clef, 42);
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else
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Image_print_version(0);
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exit(5);
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}
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/*::------------------------------------------------------------------::*/
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int main (int argc, char *argv[])
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{
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Image_Desc *src, *dst;
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int foo;
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int commande, nbargs, idx;
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dump_command_line(argc, argv, 0);
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if ( argc==2 && !strcmp(argv[1], "list") ) usage(1);
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if ( argc < 4) usage(0);
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idx = cherche_mot_clef(argv[2], mots_clef, &commande, &nbargs);
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if (idx < 0)
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{
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fprintf(stderr, "tga_dither: keyword %s unknow.\n", argv[2]);
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exit(5);
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}
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#if DEBUG_LEVEL
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fprintf(stderr, "idx %d commande %d nbargs %d argc %d\n",
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idx, commande, nbargs, argc);
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#endif
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foo = parse_parametres(argc, argv, mots_clef[idx].ptypes, 4);
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if ( (src=Image_TGA_alloc_load(argv[1])) == NULL )
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{
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fprintf(stderr, "tga_dither: err load %s\n", argv[1]);
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exit(5);
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}
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if ( (dst=Image_clone(src, 1)) == NULL )
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{
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fprintf(stderr, "no mem for image cloning\n");
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exit(5);
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}
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switch (commande)
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{
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case DI_2X2:
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foo = Image_dither_2x2(src, dst, 255);
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break;
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case DI_3X3_0:
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foo = Image_dither_3x3_0(src, dst, 127);
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break;
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case DI_3X3_1:
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foo = Image_dither_3x3_1(src, dst, 255);
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break;
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case DI_BAYER0:
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foo = Image_dither_Bayer_0(src, dst, 255);
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break;
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case DI_ATKINSON:
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foo = Image_dither_atkinson(src, dst, 255);
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break;
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case DI_CRUDE:
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foo = Image_dither_crude(src, dst, GIP(0));
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break;
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case DI_DBLTR:
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foo = Image_dither_double_seuil(src, dst, GIP(0), GIP(1), 255);
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break;
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case DI_ERROR:
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foo = Image_dither_simple_error(src, dst, 255);
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break;
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case DI_RANDOM:
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foo = Image_dither_seuil_random(src, dst, 255);
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break;
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case DI_BYR8RND:
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srand(getpid());
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foo = Image_dither_bayer8x8rnd(src, dst, GIP(0), GIP(1));
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break;
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case DI_XPER:
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foo = Image_dither_3x3_1(src, dst, GIP(0));
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break;
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default:
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fprintf(stderr, "dithering method not implemented\n");
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foo=-1;
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break;
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}
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if (foo)
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fprintf(stderr, "dither %d retour = %d, %s\n", commande,
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foo, Image_err2str(foo));
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foo = Image_TGA_save(argv[3], dst, 0);
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return 0;
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}
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/*::------------------------------------------------------------------::*/
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