Import sources from 2011-03-30 iso image

1 files changed, 37 insertions, 0 deletions

diff --git a/sys/src/libdraw/getsubfont.c b/sys/src/libdraw/getsubfont.c
new file mode 100755
index 000000000..04cc87355
--- /dev/null
+++ b/sys/src/libdraw/getsubfont.c
@@ -0,0 +1,37 @@
+#include <u.h>
+#include <libc.h>
+#include <draw.h>
+
+/*
+ * Default version: treat as file name
+ */
+
+Subfont*
+_getsubfont(Display *d, char *name)
+{
+	int fd;
+	Subfont *f;
+
+	fd = open(name, OREAD);
+		
+	if(fd < 0){
+		fprint(2, "getsubfont: can't open %s: %r\n", name);
+		return 0;
+	}
+	/*
+	 * unlock display so i/o happens with display released, unless
+	 * user is doing his own locking, in which case this could break things.
+	 * _getsubfont is called only from string.c and stringwidth.c,
+	 * which are known to be safe to have this done.
+	 */
+	if(d && d->locking == 0)
+		unlockdisplay(d);
+	f = readsubfont(d, name, fd, d && d->locking==0);
+	if(d && d->locking == 0)
+		lockdisplay(d);
+	if(f == 0)
+		fprint(2, "getsubfont: can't read %s: %r\n", name);
+	close(fd);
+	setmalloctag(f, getcallerpc(&d));
+	return f;
+}