[PATCH i-g-t, v8 2/5] tests/kms_colorop_helper: Add helpers to clear colorops data

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

Add new helper function to reset color operations
to their default/bypass state. These functions:
 - Set the colorop to bypass mode.
 - Clear associated data blobs for CTM, LUT1D, LUT3D.
 - Reset multiplier values where applicable.

v2: -make internal helper static (Chaitanya)
    -rename func() to clear_colorops() (Chaitanya)
v3: -remove unused var (Chaitanya)
    -rename func name to reset_colorops() (Chaitanya)

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
---
 tests/kms_colorop_helper.c | 28 ++++++++++++++++++++++++++++
 tests/kms_colorop_helper.h |  1 +
 2 files changed, 29 insertions(+)

diff --git a/tests/kms_colorop_helper.c b/tests/kms_colorop_helper.c
index 6869590f3..76728b47b 100644
--- a/tests/kms_colorop_helper.c
+++ b/tests/kms_colorop_helper.c
@@ -400,3 +400,31 @@ void set_color_pipeline_bypass(igt_plane_t *plane)
 {
 	igt_plane_set_prop_enum(plane, IGT_PLANE_COLOR_PIPELINE, "Bypass");
 }
+
+static void reset_colorop(kms_colorop_t *colorop)
+{
+	igt_assert(colorop->colorop);
+	igt_colorop_set_prop_value(colorop->colorop, IGT_COLOROP_BYPASS, 1);
+
+	switch (colorop->type) {
+	case KMS_COLOROP_CTM_3X4:
+	case KMS_COLOROP_CUSTOM_LUT1D:
+	case KMS_COLOROP_LUT3D:
+		igt_colorop_replace_prop_blob(colorop->colorop, IGT_COLOROP_DATA, NULL, 0);
+		break;
+	case KMS_COLOROP_MULTIPLIER:
+		igt_colorop_set_prop_value(colorop->colorop, IGT_COLOROP_MULTIPLIER, 1);
+		break;
+	case KMS_COLOROP_ENUMERATED_LUT1D:
+	default:
+		return;
+	}
+}
+
+void reset_colorops(kms_colorop_t *colorops[])
+{
+	int i;
+
+	for(i = 0; colorops[i]; i++)
+		reset_colorop(colorops[i]);
+}
diff --git a/tests/kms_colorop_helper.h b/tests/kms_colorop_helper.h
index b807f122d..2ded22c8f 100644
--- a/tests/kms_colorop_helper.h
+++ b/tests/kms_colorop_helper.h
@@ -102,5 +102,6 @@ void set_color_pipeline(igt_display_t *display,
 			kms_colorop_t *colorops[],
 			igt_colorop_t *color_pipeline);
 void set_color_pipeline_bypass(igt_plane_t *plane);
+void reset_colorops(kms_colorop_t *colorops[]);
 
 #endif /* __KMS_COLOROP_HELPER_H__ */
-- 
2.25.1