mirror of
https://github.com/pret/pokestadium.git
synced 2026-03-22 01:34:25 -05:00
108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
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* Copyright © 2014 IIMarckus <imarckus@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Dump a table of files to individual binary files.
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*/
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#include <err.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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/* 0x1708000 in Stadium GS */
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uint32_t
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getint32BE(FILE *f)
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{
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uint32_t n;
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n = fgetc(f) << 24;
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n |= fgetc(f) << 16;
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n |= fgetc(f) << 8;
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n |= fgetc(f);
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return n;
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}
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int
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main(int argc, char *argv[])
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{
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FILE *rom;
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FILE *outfile;
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uint32_t ntables, nentries;
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uint32_t *tableptrs, *sizes;
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int i, x, table, entry;
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char outfilename[16];
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char *ep;
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unsigned long long dataoff;
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if (argc != 3) {
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errx(1, "Usage: extractbin file offset");
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}
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rom = fopen(argv[1], "rb");
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if (rom == NULL) {
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err(1, "Error opening file '%s'", argv[1]);
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}
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dataoff = strtoull(argv[2], &ep, 0);
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if (argv[2][0] == '\0' || *ep != '\0') {
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err(1, "invalid offset '%s'", argv[2]);
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}
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if (errno == ERANGE && dataoff == ULLONG_MAX) {
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err(1, "invalid offset '%s'", argv[2]);
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}
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if (dataoff > 64 * 1024 * 1024) {
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err(1, "invalid offset '%s'", argv[2]);
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}
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fseek(rom, dataoff + 0xc, SEEK_SET);
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ntables = getint32BE(rom);
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tableptrs = reallocarray(NULL, ntables, sizeof(uint32_t));
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sizes = reallocarray(NULL, ntables, sizeof(uint32_t));
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if (tableptrs == NULL || sizes == NULL) {
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err(1, "Could not allocate memory for table table");
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}
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for (i = 0; i < ntables; ++i) {
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tableptrs[i] = getint32BE(rom);
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sizes[i] = getint32BE(rom);
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getint32BE(rom);
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getint32BE(rom);
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}
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printf("%d tables\n", ntables);
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for (table = 0; table < ntables; ++table) {
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for (i = 0; i < 16; ++i) {
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fseek(rom, dataoff + tableptrs[table] + sizes[table] - i - 1, SEEK_SET);
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if (fgetc(rom) != 0xff) {
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sizes[table] -= i;
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break;
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}
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}
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fseek(rom, dataoff + tableptrs[table], SEEK_SET);
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snprintf(outfilename, sizeof outfilename, "0x%x.bin", ftell(rom));
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outfile = fopen(outfilename, "wb");
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for (i = 0; i < sizes[table]; ++i) {
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fputc(fgetc(rom), outfile);
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}
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fclose(outfile);
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}
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}
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