diff options
Diffstat (limited to 'plugins/dumb/dumb-kode54/src/it/itorder.c')
| -rw-r--r-- | plugins/dumb/dumb-kode54/src/it/itorder.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/plugins/dumb/dumb-kode54/src/it/itorder.c b/plugins/dumb/dumb-kode54/src/it/itorder.c new file mode 100644 index 00000000..c3fe51cb --- /dev/null +++ b/plugins/dumb/dumb-kode54/src/it/itorder.c @@ -0,0 +1,63 @@ +/* _______ ____ __ ___ ___
+ * \ _ \ \ / \ / \ \ / / ' ' '
+ * | | \ \ | | || | \/ | . .
+ * | | | | | | || ||\ /| |
+ * | | | | | | || || \/ | | ' ' '
+ * | | | | | | || || | | . .
+ * | |_/ / \ \__// || | |
+ * /_______/ynamic \____/niversal /__\ /____\usic /| . . ibliotheque
+ * / \
+ * / . \
+ * itorder.c - Code to fix invalid patterns in / / \ \
+ * the pattern table. | < / \_
+ * | \/ /\ /
+ * By Julien Cugniere. \_ / > /
+ * | \ / /
+ * | ' /
+ * \__/
+ */
+
+
+
+#include <stdlib.h>
+
+#include "dumb.h"
+#include "internal/it.h"
+
+
+
+/* This function ensures that any pattern mentioned in the order table but
+ * not present in the pattern table is treated as an empty 64 rows pattern.
+ * This is done by adding such a dummy pattern at the end of the pattern
+ * table, and redirect invalid orders to it.
+ * Patterns 254 and 255 are left untouched, unless the signal is an XM.
+ */
+int _dumb_it_fix_invalid_orders(DUMB_IT_SIGDATA *sigdata)
+{
+ int i;
+ int found_some = 0;
+
+ int first_invalid = sigdata->n_patterns;
+ int last_invalid = (sigdata->flags & IT_WAS_AN_XM) ? 255 : 253;
+
+ for (i = 0; i < sigdata->n_orders; i++) {
+ if (sigdata->order[i] >= first_invalid && sigdata->order[i] <= last_invalid) {
+ sigdata->order[i] = sigdata->n_patterns;
+ found_some = 1;
+ }
+ }
+
+ if (found_some) {
+ IT_PATTERN *new_pattern = realloc(sigdata->pattern, sizeof(*sigdata->pattern) * (sigdata->n_patterns + 1));
+ if (!new_pattern)
+ return -1;
+
+ new_pattern[sigdata->n_patterns].n_rows = 64;
+ new_pattern[sigdata->n_patterns].n_entries = 0;
+ new_pattern[sigdata->n_patterns].entry = NULL;
+ sigdata->pattern = new_pattern;
+ sigdata->n_patterns++;
+ }
+
+ return 0;
+}
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