1 files changed, 71 insertions, 0 deletions
diff --git a/circuitpython/lib/quirc/demo/demoutil.c b/circuitpython/lib/quirc/demo/demoutil.c
new file mode 100644
index 0000000..857247a
--- /dev/null
+++ b/circuitpython/lib/quirc/demo/demoutil.c
@@ -0,0 +1,71 @@
+/* quirc -- QR-code recognition library
+ * Copyright (C) 2010-2012 Daniel Beer <dlbeer@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+
+#include "demoutil.h"
+
+void print_data(const struct quirc_data *data, struct dthash *dt,
+		int want_verbose)
+{
+	if (dthash_seen(dt, data))
+		return;
+
+	printf("==> %s\n", data->payload);
+
+	if (want_verbose)
+		printf("    Version: %d, ECC: %c, Mask: %d, Type: %d\n\n",
+		       data->version, "MLHQ"[data->ecc_level],
+		       data->mask, data->data_type);
+}
+
+int parse_size(const char *text, int *video_width, int *video_height)
+{
+	int state = 0;
+	int w = 0, h = 0;
+	int i;
+
+	for (i = 0; text[i]; i++) {
+		if (text[i] == 'x' || text[i] == 'X') {
+			if (state == 0) {
+				state = 1;
+			} else {
+				fprintf(stderr, "parse_size: expected WxH\n");
+				return -1;
+			}
+		} else if (isdigit(text[i])) {
+			if (state == 0)
+				w = w * 10 + text[i] - '0';
+			else
+				h = h * 10 + text[i] - '0';
+		} else {
+			fprintf(stderr, "Invalid character in size: %c\n",
+				text[i]);
+			return -1;
+		}
+	}
+
+	if (w <= 0 || w >= 10000 || h <= 0 || h >= 10000) {
+		fprintf(stderr, "Invalid size: %dx%d\n", w, h);
+		return -1;
+	}
+
+	*video_width = w;
+	*video_height = h;
+
+	return 0;
+}