tests: add color-management tests for the parametric interface

This adds tests to create image descriptions through color parameters
using the CM&HDR protocol extension.

The code for that was added in commit "color: allow clients to create
image description from parameters".

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>

libweston/color-lcms/color-lcms.c

@@ -525,8 +525,18 @@ weston_color_manager_create(struct weston_compositor *compositor)
 					     (1 << WESTON_PRIMARIES_CICP_DISPLAY_P3) |
 					     (1 << WESTON_PRIMARIES_ADOBE_RGB);
 
-	/* We still don't support any tf named. */
-	cm->base.supported_tf_named = 0;
+	/**
+	 * TODO: this is a lie just to make the color-management-parametric
+	 * tests to work. Without this the tests would be much more limited. We
+	 * actually need to implement such TF's. There's no problem doing that,
+	 * as parametric color profiles themselves are still unsupported.
+	 */
+
+	/* We need to implement each tf, and we support only a few of them. */
+	cm->base.supported_tf_named = (1 << WESTON_TF_GAMMA22) |
+				      (1 << WESTON_TF_GAMMA28) |
+				      (1 << WESTON_TF_SRGB) |
+				      (1 << WESTON_TF_ST2084_PQ);
 
 	wl_list_init(&cm->color_transform_list);
 	wl_list_init(&cm->color_profile_list);

tests/meson.build

@@ -311,6 +311,13 @@ if get_option('color-management-lcms')
 			],
 			'dep_objs': [ dep_lcms_util ]
 		},
+		{	'name': 'color-management-parametric',
+			'sources': [
+				'color-management-parametric-test.c',
+				color_management_v1_client_protocol_h,
+				color_management_v1_protocol_c,
+			],
+		},
 		{	'name': 'color-metadata-parsing' },
 		{
 			'name': 'lcms-util',