video: Add a function to draw a rectangle

Provide a way to draw an unfilled box of a certain width. This is useful
for grouping menu items together.

Add a comment showing how to see the copy-framebuffer, for testing.

Signed-off-by: Simon Glass <[email protected]>

1 files changed, 21 insertions, 0 deletions

diff --git a/test/dm/video.c b/test/dm/video.c
index dd06b2f58e8..ecf74605b5c 100644
--- a/test/dm/video.c
+++ b/test/dm/video.c
@@ -902,3 +902,24 @@ static int dm_test_video_silence(struct unit_test_state *uts)
 	return 0;
 }
 DM_TEST(dm_test_video_silence, UTF_SCAN_FDT);
+
+/* test drawing a box */
+static int dm_test_video_box(struct unit_test_state *uts)
+{
+	struct video_priv *priv;
+	struct udevice *dev;
+
+	ut_assertok(video_get_nologo(uts, &dev));
+	priv = dev_get_uclass_priv(dev);
+	video_draw_box(dev, 100, 100, 200, 200, 3,
+		       video_index_to_colour(priv, VID_LIGHT_BLUE));
+	video_draw_box(dev, 300, 100, 400, 200, 1,
+		       video_index_to_colour(priv, VID_MAGENTA));
+	video_draw_box(dev, 500, 100, 600, 200, 20,
+		       video_index_to_colour(priv, VID_LIGHT_RED));
+	ut_asserteq(133, video_compress_fb(uts, dev, false));
+	ut_assertok(video_check_copy_fb(uts, dev));
+
+	return 0;
+}
+DM_TEST(dm_test_video_box, UTF_SCAN_FDT);