video: test: Test video damage tracking via vidconsole

With VIDEO_DAMAGE, the video uclass tracks updated regions of the frame
buffer in order to avoid unnecessary work during a video sync. Enable
the config in sandbox and add a test for it, by printing strings at a
few locations and checking the tracked region.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Adjust test avoid temporary failures in this patch:
Signed-off-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/u-boot/20230821135111.3558478-8-alpernebiyasak@gmail.com/

diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index c4b1b81..f41021a 100644 (file)
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -329,6 +329,7 @@ CONFIG_USB_ETH_CDC=y
 CONFIG_VIDEO=y
 CONFIG_VIDEO_FONT_SUN12X22=y
 CONFIG_VIDEO_COPY=y
+CONFIG_VIDEO_DAMAGE=y
 CONFIG_VIDEO_BRIDGE=y
 CONFIG_VIDEO_BRIDGE_LVDS_CODEC=y
 CONFIG_CONSOLE_ROTATION=y

diff --git a/test/dm/video.c b/test/dm/video.c
index 80e65d6..cf81b90 100644 (file)
--- a/test/dm/video.c
+++ b/test/dm/video.c
@@ -710,3 +710,59 @@ static int dm_test_video_copy(struct unit_test_state *uts)
        return 0;
 }
 DM_TEST(dm_test_video_copy, UTF_SCAN_PDATA | UTF_SCAN_FDT);
+
+/* Test video damage tracking */
+static int dm_test_video_damage(struct unit_test_state *uts)
+{
+       struct sandbox_sdl_plat *plat;
+       struct udevice *dev, *con;
+       struct video_priv *priv;
+       const char *test_string_1 = "Criticism may not be agreeable, ";
+       const char *test_string_2 = "but it is necessary.";
+       const char *test_string_3 = "It fulfils the same function as pain in the human body.";
+
+       if (!IS_ENABLED(CONFIG_VIDEO_DAMAGE))
+               return -EAGAIN;
+
+       ut_assertok(uclass_find_device(UCLASS_VIDEO, 0, &dev));
+       ut_assert(!device_active(dev));
+       plat = dev_get_plat(dev);
+       plat->font_size = 32;
+
+       ut_assertok(video_get_nologo(uts, &dev));
+       ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
+       priv = dev_get_uclass_priv(dev);
+
+       vidconsole_position_cursor(con, 14, 10);
+       vidconsole_put_string(con, test_string_2);
+       ut_asserteq(449, priv->damage.xstart);
+       ut_asserteq(325, priv->damage.ystart);
+       ut_asserteq(661, priv->damage.xend);
+       ut_asserteq(350, priv->damage.yend);
+
+       vidconsole_position_cursor(con, 7, 5);
+       vidconsole_put_string(con, test_string_1);
+       ut_asserteq(225, priv->damage.xstart);
+       ut_asserteq(164, priv->damage.ystart);
+       ut_asserteq(661, priv->damage.xend);
+       ut_asserteq(350, priv->damage.yend);
+
+       vidconsole_position_cursor(con, 21, 15);
+       vidconsole_put_string(con, test_string_3);
+       ut_asserteq(225, priv->damage.xstart);
+       ut_asserteq(164, priv->damage.ystart);
+       ut_asserteq(1280, priv->damage.xend);
+       ut_asserteq(510, priv->damage.yend);
+
+       video_sync(dev, true);
+       ut_asserteq(priv->xsize, priv->damage.xstart);
+       ut_asserteq(priv->ysize, priv->damage.ystart);
+       ut_asserteq(0, priv->damage.xend);
+       ut_asserteq(0, priv->damage.yend);
+
+       ut_asserteq(7339, compress_frame_buffer(uts, dev, false));
+       ut_assertok(check_copy_frame_buffer(uts, dev));
+
+       return 0;
+}
+DM_TEST(dm_test_video_damage, UTF_SCAN_PDATA | UTF_SCAN_FDT);