+ if (tasfn != NULL) {
+ long size;
+ FILE *f;
+
+ f = fopen(tasfn, "rb");
+ if (f == NULL) {
+ fprintf(stderr, "fopen %s: ", tasfn);
+ perror("");
+ return 1;
+ }
+
+ fseek(f, 0, SEEK_END);
+ size = ftell(f);
+ fseek(f, 0, SEEK_SET);
+ if (size < (long)sizeof(*gmv)) {
+ fprintf(stderr, "bad gmv size: %ld\n", size);
+ return 1;
+ }
+ gmv = malloc(size);
+ if (gmv == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return 1;
+ }
+ ret = fread(gmv, 1, size, f);
+ if (ret != size) {
+ fprintf(stderr, "fread %d/%ld: ", ret, size);
+ perror("");
+ return 1;
+ }
+ fclose(f);
+ frame_count = (size - sizeof(*gmv)) / sizeof(gmv->data[0]);
+
+ /* check the GMV.. */
+ if (frame_count <= 0 || size != sizeof(*gmv) + frame_count * 3) {
+ fprintf(stderr, "broken gmv? frames=%d\n", frame_count);
+ return 1;
+ }
+
+ if (strncmp(gmv->sig, "Gens Movie TEST", 15) != 0) {
+ fprintf(stderr, "bad GMV sig\n");
+ return 1;
+ }
+ if (gmv->ctrl1 != '3') {
+ fprintf(stderr, "unhandled controlled config: '%c'\n", gmv->ctrl1);
+ //return 1;
+ }
+ if (gmv->ver >= 'A') {
+ if (gmv->flags & 0x40) {
+ fprintf(stderr, "unhandled flag: movie requires a savestate\n");
+ return 1;
+ }
+ if (gmv->flags & 0x20) {
+ fprintf(stderr, "unhandled flag: 3-player movie\n");
+ return 1;
+ }
+ if (gmv->flags & ~0x80) {
+ fprintf(stderr, "unhandled flag(s): %04x\n", gmv->flags);
+ //return 1;
+ }
+ }
+ gmv->name[39] = 0;
+ printf("loaded GMV: %s\n", gmv->name);
+ printf("%d frames, %u rerecords\n",
+ frame_count, gmv->rerecord_count);
+
+ if (tas_skip != 0) {
+ if (tas_skip >= frame_count || tas_skip <= -frame_count) {
+ printf("skip out of range: %d/%d\n", tas_skip, frame_count);
+ return 1;
+ }
+ if (tas_skip > 0) {
+ frame_count -= tas_skip;
+ memmove(&gmv->data[0], &gmv->data[tas_skip],
+ sizeof(gmv->data[0]) * frame_count);
+ }
+ else {
+ gmv = realloc(gmv, sizeof(*gmv)
+ + (frame_count - tas_skip) * sizeof(gmv->data[0]));
+ if (gmv == NULL) {
+ fprintf(stderr, "OOM?\n");
+ return 1;
+ }
+ memmove(&gmv->data[-tas_skip], &gmv->data[0],
+ sizeof(gmv->data[0]) * frame_count);
+ memset(&gmv->data[0], 0xff, sizeof(gmv->data[0]) * -tas_skip);
+ frame_count -= tas_skip;
+ }
+ }
+ }
+
+ enable_echo(0);
+ signal(SIGINT, signal_handler);
+