Import TTF2f. Don't expect this to link; I've prevented it building main.c.

svn path=/trunk/tools/ttf2f/; revision=7427

1 files changed, 39 insertions, 0 deletions

diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..1aea66f
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,39 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "utils.h"
+
+char *strndup(const char *s, size_t n)
+{
+	/* this assumes s is NUL terminated - if not,
+	 * some silly value will be returned */
+	size_t len = strlen(s);
+	char *res;
+
+	/* limit to n */
+	if (len > n || n == 0)
+		len = n;
+
+	res = (char *) malloc(len + 1);
+	if (res == NULL)
+		return NULL;
+
+	res[len] = '\0';
+	return (char *) memcpy(res, s, len);
+}
+
+/**
+ * Convert raw font units to units normalised with a design size of 1000
+ *
+ * \param raw  Raw value from file
+ * \param ppem Design size of font
+ * \return Converted value
+ */
+long convert_units(long raw, long ppem)
+{
+	if (ppem == 1000)
+		return raw;
+
+	return (raw * 1000) / ppem;
+}