extmod/modframebuf: Fix pixel accessor to return a 1-bit result.

dpgeorge · dpgeorge · commit 531217a06b54 · 2016-08-27T18:31:58.000+10:00
diff --git a/extmod/modframebuf.c b/extmod/modframebuf.c
@@ -83,7 +83,7 @@ STATIC mp_obj_t framebuf1_pixel(size_t n_args, const mp_obj_t *args) {
         int index = (y / 8) * self->stride + x;
         if (n_args == 3) {
             // get
-            return MP_OBJ_NEW_SMALL_INT(self->buf[index] >> (y & 7));
+            return MP_OBJ_NEW_SMALL_INT((self->buf[index] >> (y & 7)) & 1);
         } else {
             // set
             if (mp_obj_get_int(args[3])) {
