[PATCH i-g-t 4/9] tests/kms_sharpness_filter: Add toggle subtest

[Swati Sharma <swati2.sharma@intel.com>]

Subtest is added to verify toggling/switching between enabling
and disabling of content adaptive sharpness filter.

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
---
 tests/kms_sharpness_filter.c | 40 ++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/tests/kms_sharpness_filter.c b/tests/kms_sharpness_filter.c
index ac12d13bf..8ade3b0bc 100644
--- a/tests/kms_sharpness_filter.c
+++ b/tests/kms_sharpness_filter.c
@@ -34,6 +34,9 @@
  * SUBTEST: filter-formats
  * Description: Verify content adaptive sharpness filter with varying formats.
  * Functionality: casf, pixel-format
+ *
+ * SUBTEST: filter-toggle
+ * Description: Verify toggling between enabling and disabling content adaptive sharpness filter.
 */
 
 IGT_TEST_DESCRIPTION("Test to validate content adaptive sharpness filter");
@@ -44,9 +47,11 @@ IGT_TEST_DESCRIPTION("Test to validate content adaptive sharpness filter");
  * is seen without corruption for each subtest.
  */
 
+#define DISABLE_FILTER			0
 #define MIN_FILTER_STRENGTH		1
 #define MID_FILTER_STRENGTH		128
 #define MAX_FILTER_STRENGTH		255
+#define NROUNDS				10
 
 enum test_type {
 	TEST_FILTER_BASIC,
@@ -54,6 +59,7 @@ enum test_type {
 	TEST_FILTER_ROTATION,
 	TEST_FILTER_FORMATS,
 	TEST_FILTER_STRENGTH,
+	TEST_FILTER_TOGGLE,
 };
 
 const int filter_strength_list[] = {
@@ -145,6 +151,23 @@ static void cleanup(data_t *data)
 	cleanup_fbs(data);
 }
 
+static int test_filter_toggle(data_t *data)
+{
+	int ret = 0;
+
+	for (int k = 0; k < NROUNDS; k++) {
+		if (k % 2 == 0)
+			data->filter_strength = DISABLE_FILTER;
+		else
+			data->filter_strength = MAX_FILTER_STRENGTH;
+
+		set_filter_strength_on_pipe(data);
+		ret |= igt_display_try_commit2(&data->display, COMMIT_ATOMIC);
+	}
+
+	return ret;
+}
+
 static void test_sharpness_filter(data_t *data,  enum test_type type)
 {
 	drmModeModeInfo *mode = data->mode;
@@ -171,6 +194,9 @@ static void test_sharpness_filter(data_t *data,  enum test_type type)
 
 	ret = igt_display_try_commit2(&data->display, COMMIT_ATOMIC);
 
+	if (type == TEST_FILTER_TOGGLE)
+		ret |= test_filter_toggle(data);
+
 	igt_assert_eq(ret, 0);
 
 	cleanup(data);
@@ -227,6 +253,9 @@ run_sharpness_filter_test(data_t *data, enum test_type type)
 			case TEST_FILTER_STRENGTH:
 				snprintf(name, sizeof(name), "-strength-%d", data->filter_strength);
 				break;
+			case TEST_FILTER_TOGGLE:
+				snprintf(name, sizeof(name), "-toggle");
+				break;
 			default:
 				igt_assert(0);
 			}
@@ -340,6 +369,17 @@ igt_main_args("l", NULL, help_str, opt_handler, &data)
 		}
 	}
 
+	igt_describe("Verify toggling between enabling and disabling "
+		     "content adaptive sharpness filter.");
+	igt_subtest_with_dynamic("filter-toggle") {
+		data.modifier = DRM_FORMAT_MOD_LINEAR;
+		data.rotation = IGT_ROTATION_0;
+		data.format = DRM_FORMAT_XRGB8888;
+
+		data.filter_strength = MAX_FILTER_STRENGTH;
+		run_sharpness_filter_test(&data, TEST_FILTER_TOGGLE);
+	}
+
 	igt_fixture {
 		igt_display_fini(&data.display);
 		drm_close_driver(data.drm_fd);
-- 
2.25.1