[RFC PATCH v2 03/11] tests/kms_colorop_helper: Add helpers to get encoding/range from CSC FF name

[Harry Wentland <harry.wentland@amd.com>]

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
---
 tests/kms_colorop_helper.c | 30 ++++++++++++++++++++++++++++++
 tests/kms_colorop_helper.h |  4 ++++
 2 files changed, 34 insertions(+)

diff --git a/tests/kms_colorop_helper.c b/tests/kms_colorop_helper.c
index 4832c0f4eb23..4e9205a291a7 100644
--- a/tests/kms_colorop_helper.c
+++ b/tests/kms_colorop_helper.c
@@ -473,3 +473,33 @@ void reset_colorops(kms_colorop_t *colorops[])
 	for(i = 0; colorops[i]; i++)
 		reset_colorop(colorops[i]);
 }
+
+static const struct {
+	const char *name;
+	enum igt_color_encoding encoding;
+	enum igt_color_range range;
+} csc_ff_type_map[] = {
+	{ "YUV601 to RGB601",		IGT_COLOR_YCBCR_BT601,  IGT_COLOR_YCBCR_FULL_RANGE },
+	{ "YUV709 to RGB709",		IGT_COLOR_YCBCR_BT709,  IGT_COLOR_YCBCR_FULL_RANGE },
+	{ "YUV2020 to RGB2020",	IGT_COLOR_YCBCR_BT2020, IGT_COLOR_YCBCR_FULL_RANGE },
+	{ "YUV601 Limited to RGB601",	IGT_COLOR_YCBCR_BT601,  IGT_COLOR_YCBCR_LIMITED_RANGE },
+	{ "YUV709 Limited to RGB709",	IGT_COLOR_YCBCR_BT709,  IGT_COLOR_YCBCR_LIMITED_RANGE },
+	{ "YUV2020 Limited to RGB2020",	IGT_COLOR_YCBCR_BT2020, IGT_COLOR_YCBCR_LIMITED_RANGE },
+};
+
+void csc_ff_type_to_encoding_range(const char *csc_ff_type_name,
+				   enum igt_color_encoding *encoding,
+				   enum igt_color_range *range)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(csc_ff_type_map); i++) {
+		if (!strcmp(csc_ff_type_name, csc_ff_type_map[i].name)) {
+			*encoding = csc_ff_type_map[i].encoding;
+			*range = csc_ff_type_map[i].range;
+			return;
+		}
+	}
+
+	igt_assert_f(false, "Unknown CSC FF type: %s\n", csc_ff_type_name);
+}
diff --git a/tests/kms_colorop_helper.h b/tests/kms_colorop_helper.h
index 6e8843b7b651..23b9b7eecca8 100644
--- a/tests/kms_colorop_helper.h
+++ b/tests/kms_colorop_helper.h
@@ -115,4 +115,8 @@ void set_color_pipeline(igt_display_t *display,
 void set_color_pipeline_bypass(igt_plane_t *plane);
 void reset_colorops(kms_colorop_t *colorops[]);
 
+void csc_ff_type_to_encoding_range(const char *csc_ff_type_name,
+				  enum igt_color_encoding *encoding,
+				  enum igt_color_range *range);
+
 #endif /* __KMS_COLOROP_HELPER_H__ */
-- 
2.53.0