tests: Add CLU and LUT test

Test CLU and LUT operation in both RGB and YUV modes with different look
up tables.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

2 files changed, 58 insertions, 2 deletions

diff --git a/README b/README
index 972a296..7bc1d48 100644
--- a/README
+++ b/README
@@ -44,8 +44,9 @@ system in a directory included in $PATH.
 * raw2rgbpnm (available at git://git.retiisi.org.uk/~sailus/raw2rgbpnm.git)
 * yavta (available at git://git.ideasonboard.org/yavta.git)
 
-All but the HGO test can be run with the latest version of these tools. To
-test the HGO, the 'metadata' branch of 'yavta' is currently needed.
+All but the HGO and CLU/LUT tests can be run with the latest version of these
+tools. To test the HGO and CLU/LUT, the 'vsp' branch of 'yavta' is currently
+needed.
 
 
 -----------------
diff --git a/tests/vsp-unit-test-0010.sh b/tests/vsp-unit-test-0010.sh
new file mode 100755
index 0000000..fc6ded6
--- /dev/null
+++ b/tests/vsp-unit-test-0010.sh
@@ -0,0 +1,55 @@
+#!/bin/sh
+
+#
+# Test CLU and LUT in RGB and YUV modes. Use a RPF -> CLU -> WPF and
+# RPF -> LUT -> WPF pipelines with identical input and output formats.
+#
+
+source vsp-lib.sh
+
+features="rpf.0 clu lut wpf.0"
+formats="RGB24 YUV444M"
+
+lut_types="clu lut"
+
+# Keep the "zero" configuration first to catch lack of hardware table setup
+# due to V4L2 control caching, as the initial value of the LUT and CLU table
+# controls is all 0.
+clu_configs="zero identity wave"
+lut_configs="zero identity gamma"
+
+test_lut() {
+	lut_type=$1
+	format=$2
+	config=$3
+
+	test_start "$(echo $lut_type | tr [:lower:] [:upper:]) in $format with $config configuration"
+
+	config_file=frames/${lut_type}-${config}.bin
+
+	pipe_configure rpf-${lut_type}
+	format_configure rpf-${lut_type} $format 1024x768
+
+	vsp1_set_control $lut_type "Look-Up+Table" "<$config_file"
+
+	vsp_runner rpf.0 &
+	vsp_runner wpf.0
+
+	result=$(compare_frames $lut_type=$config_file)
+
+	test_complete $result
+}
+
+test_main() {
+	for lut in $lut_types ; do
+		configs=$(eval echo \$${lut}_configs)
+		for format in $formats ; do
+			for config in $configs ; do
+				test_lut $lut $format $config
+			done
+		done
+	done
+}
+
+test_init $0 "$features"
+test_run