[PATCH i-g-t v1 1/5] tests/kms_flip: Enable degamma LUT testing in kms_flip

[Naladala Ramanaidu]

Adds support for testing degamma LUT functionality in the kms_flip
test suite. A new TEST_DEGAMMA flag is introduced to control the
test flow.

Signed-off-by: Naladala Ramanaidu <ramanaidu.naladala at intel.com>
---
 tests/kms_flip.c  | 68 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build |  1 +
 2 files changed, 69 insertions(+)

diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index 0cebbecac..6b91ad6eb 100755
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -33,6 +33,7 @@
 
 #include "igt.h"
 #include "i915/intel_drrs.h"
+#include "kms_color_helper.h"
 
 #include <cairo.h>
 #include <errno.h>
@@ -257,6 +258,8 @@
 #define TEST_NO_VBLANK		(1 << 29)
 #define TEST_BASIC		(1 << 30)
 
+#define TEST_DEGAMMA		(1 << 17)
+
 #define EVENT_FLIP		(1 << 0)
 #define EVENT_VBLANK		(1 << 1)
 
@@ -1540,6 +1543,31 @@ static void get_suitable_modes(struct test_output *o)
 	o->kmode[1] = mode[1];
 }
 
+static void
+test_setup(data_t *data, enum pipe p, uint64_t modifier)
+{
+	igt_pipe_t *pipe;
+
+	data->drm_fd = drm_fd;
+	data->color_depth = 8;
+	data->drm_format = DRM_FORMAT_XRGB8888;
+
+	memcpy(&data->display, &display, sizeof(igt_display_t));
+	igt_require_pipe(&data->display, p);
+
+	if (igt_pipe_obj_has_prop(&data->display.pipes[p], IGT_CRTC_DEGAMMA_LUT_SIZE)) {
+		data->degamma_lut_size =
+			igt_pipe_obj_get_prop(&data->display.pipes[p],
+					      IGT_CRTC_DEGAMMA_LUT_SIZE);
+		igt_assert_lt(0, data->degamma_lut_size);
+	}
+
+	pipe = &data->display.pipes[p];
+	igt_require(pipe->n_planes >= 0);
+
+	data->primary = igt_pipe_get_plane_type(pipe, DRM_PLANE_TYPE_PRIMARY);
+}
+
 static void __run_test_on_crtc_set(struct test_output *o, int *crtc_idxs,
 				   int crtc_count, int duration_ms)
 {
@@ -1551,6 +1579,9 @@ static void __run_test_on_crtc_set(struct test_output *o, int *crtc_idxs,
 	unsigned elapsed;
 	uint64_t modifier;
 	int i, ret;
+	data_t data = {};
+	gamma_lut_t *degamma_lut;
+	igt_pipe_t *pipe;
 
 restart:
 	last_connector = o->kconnector[0];
@@ -1567,6 +1598,11 @@ restart:
 	else
 		modifier = DRM_FORMAT_MOD_LINEAR;
 
+	if (o->flags & TEST_DEGAMMA) {
+		test_setup(&data, o->pipe, modifier);
+		pipe = &data.display.pipes[o->pipe];
+	}
+
 	if (o->flags & TEST_FENCE_STRESS)
 		modifier = I915_FORMAT_MOD_X_TILED;
 
@@ -1593,6 +1629,14 @@ restart:
 	igt_assert(o->fb_ids[0]);
 	igt_assert(o->fb_ids[1]);
 
+	if (o->flags & TEST_DEGAMMA) {
+		if (igt_pipe_obj_has_prop(pipe, IGT_CRTC_DEGAMMA_LUT)) {
+			degamma_lut = generate_table_max(data.degamma_lut_size);
+			set_degamma(&data, pipe, degamma_lut);
+			igt_display_commit(&display);
+		}
+	}
+
 	paint_flip_mode(&o->fb_info[0], false);
 	if (!(o->flags & TEST_BO_TOOBIG))
 		paint_flip_mode(&o->fb_info[1], true);
@@ -1653,6 +1697,14 @@ retry:
 
 	/* quiescent the hw a bit so ensure we don't miss a single frame */
 	if (o->flags & TEST_CHECK_TS && !calibrate_ts(o, crtc_idxs[0])) {
+		if (retried) {
+			if (o->flags & TEST_DEGAMMA) {
+				disable_degamma(pipe);
+				free_lut(degamma_lut);
+			}
+
+			igt_display_commit(&display);
+		}
 		igt_assert(!retried);
 
 		/*
@@ -1701,6 +1753,15 @@ retry:
 		state_ok &= check_final_state(o, &o->vblank_state, elapsed);
 
 	if (!state_ok) {
+		if (retried) {
+			if (o->flags & TEST_DEGAMMA) {
+				disable_degamma(pipe);
+				free_lut(degamma_lut);
+			}
+
+			igt_display_commit(&display);
+		}
+
 		igt_assert(!retried);
 
 		/*
@@ -1722,6 +1783,13 @@ out:
 	igt_remove_fb(drm_fd, &o->fb_info[1]);
 	igt_remove_fb(drm_fd, &o->fb_info[0]);
 
+	if (o->flags & TEST_DEGAMMA) {
+		disable_degamma(pipe);
+		free_lut(degamma_lut);
+	}
+
+	igt_display_commit(&display);
+
 	last_connector = NULL;
 
 	free_test_output(o);
diff --git a/tests/meson.build b/tests/meson.build
index 5c01c64e9..aabac2284 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -373,6 +373,7 @@ extra_sources = {
 	'dumb_buffer': ['dumb_buffer.c' ],
 	'testdisplay': [ 'testdisplay_hotplug.c' ],
 	'kms_color':  [ 'kms_color_helper.c' ],
+        'kms_flip':   ['kms_color_helper.c' ],
 	'kms_chamelium_audio': [ join_paths ('chamelium', 'kms_chamelium_helper.c') ],
 	'kms_chamelium_color':  [ 'kms_color_helper.c', join_paths ('chamelium', 'kms_chamelium_helper.c') ],
 	'kms_chamelium_edid': [ join_paths ('chamelium', 'kms_chamelium_helper.c') ],
-- 
2.43.0