134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/*
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=I =I
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=I=I=I =I =I=I=I =I=I=I =I=I=I =I=I =I=I=I =I=I=I
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=I =I =I =I =I =I =I =I =I =I =I =I =I =I=I
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=I =I =I =I =I =I =I =I =I =I =I =I =I =I=I
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=I=I=I =I =I=I=I =I =I =I=I=I =I=I =I=I=I =I=I=I
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=I =I
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=I =I
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "tga_outils.h"
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/*::------------------------------------------------------------------::*/
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#define ALPHA_ADD 1
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#define ALPHA_REDUCE 2
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#define ALPHA_KILL 3
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#define ALPHA_SETV 4
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mot_clef mots_clef[] =
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{
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{ "add", ALPHA_ADD, "i", "value of alpha channel" },
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{ "reduce", ALPHA_REDUCE, "i", "param = ?, put zero..." },
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{ "kill", ALPHA_KILL, "", "kill the alpha channel" },
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{ "setv", ALPHA_SETV, "i", "set alpha channel to param" },
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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_alpha v 0.0.10 [%s] %s\n",
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TGA_OUTILS_VERSION, TGA_OUTILS_COPYLEFT);
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Image_print_version(0);
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fprintf(stderr, "Usage:\n tga_alpha src op dst\n");
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if (flag)
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{
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liste_mots_clefs(mots_clef, 0);
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}
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exit(5);
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}
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/*::------------------------------------------------------------------::*/
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/*
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* argv[1] = source image
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* argv[2] = operation
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* argv[3] = destination image
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*/
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#define FIRST_PARAM 4
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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 idx, commande, nbargs;
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/* XXX RGB_map map; */
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dump_command_line(argc, argv, 0);
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if (argc<3) usage(1);
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/* search operation keyword in table */
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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_filtres: mot-clef %s inconnu...\n", argv[2]);
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exit (5);
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}
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foo = parse_parametres(argc, argv, mots_clef[idx].ptypes, FIRST_PARAM);
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#if DEBUG_LEVEL
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fprintf(stderr, "tga_alpha: parse params : %d\n", foo);
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#endif
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if ( (src=Image_TGA_alloc_load(argv[1])) == NULL )
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{
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fprintf(stderr, "tga_alpha: can't load '%s'\n", argv[1]);
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exit(1);
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}
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if ( (dst=Image_clone(src, 0)) == NULL )
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{
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fprintf(stderr, "tga_alpha: can't clone %p\n", src);
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exit(1);
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}
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switch (commande)
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{
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case ALPHA_ADD:
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Image_copy(src, dst);
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foo = GIP(0);
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fprintf(stderr, "valeur canal alpha %d\n", foo);
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Image_add_alpha_channel(dst, foo);
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break;
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case ALPHA_REDUCE:
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fprintf(stderr, "'%s' not implemented.\n", argv[2]);
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exit(1);
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break;
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case ALPHA_KILL:
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Image_copy(src, dst);
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fprintf(stderr, "jette le canal alpha\n");
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Image_kill_alpha_channel(dst);
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break;
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case ALPHA_SETV:
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Image_copy(src, dst);
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foo = Image_alpha_setvalue(dst, GIP(0));
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break;
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default:
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fprintf(stderr, "FUNCTION NOT IMPLEMENTED\n");
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break;
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}
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if (foo)
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{
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fprintf(stderr, "alpha op -> %d\n", foo);
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}
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foo = Image_TGA_save(argv[3], dst, 0);
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return 1;
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}
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/*::------------------------------------------------------------------::*/
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