To verify Plane degamma, draw 3 gradient rectangles in red, green and blue,
with a maxed out degamma LUT and verify we have the same frame dump as
drawing solid color rectangles with linear gamma LUT.
Cc: Harry Wentland <harry.wentland@xxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Juha-Pekka Heikkila <juhapekka.heikkila@xxxxxxxxx>
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Cc: Kunal Joshi <kunal1.joshi@xxxxxxxxx>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@xxxxxxxxx>
---
tests/kms_color_chamelium.c | 131 ++++++++++++++++++++++++++++++++++++
1 file changed, 131 insertions(+)
diff --git a/tests/kms_color_chamelium.c b/tests/kms_color_chamelium.c
index b506109271..3bcb3ac043 100644
--- a/tests/kms_color_chamelium.c
+++ b/tests/kms_color_chamelium.c
@@ -874,6 +874,132 @@ static bool plane_gamma_test(data_t *data, igt_plane_t *plane)
return ret;
}
+static bool plane_degamma_test(data_t *data, igt_plane_t *plane)
+{
+ igt_output_t *output;
+ igt_display_t *display = &data->display;
+ drmModeModeInfo *mode;
+ drmModePropertyPtr degamma_mode;
+ struct igt_fb fb, fbref;
+ struct chamelium_port *port;
+ uint32_t i;
+ bool ret = true;
+ color_t red_green_blue[] = {
+ { 1.0, 0.0, 0.0 },
+ { 0.0, 1.0, 0.0 },
+ { 0.0, 0.0, 1.0 }
+ };
+
+ igt_info("Plane degamma test is running on pipe-%s plane-%s(%s)\n",
+ kmstest_pipe_name(plane->pipe->pipe),
+ kmstest_plane_type_name(plane->type),
+ is_hdr_plane(plane) ? "hdr":"sdr");
+
+ igt_require(igt_plane_has_prop(plane, IGT_PLANE_DEGAMMA_MODE));
+ igt_require(igt_plane_has_prop(plane, IGT_PLANE_DEGAMMA_LUT));
+
+ for_each_valid_output_on_pipe(display, plane->pipe->pipe, output) {
+ for (i = 0; i < data->port_count; i++)
+ if (strcmp(output->name, chamelium_port_get_name(data->ports[i])) == 0) {
+ port = data->ports[i];
+ break;
+ }
+
+ if (port)
+ break;
+ }
+ igt_require(port);
+ igt_assert(output);
+
+ igt_output_set_pipe(output, plane->pipe->pipe);
+ mode = igt_output_get_mode(output);
+
+ /* Create a framebuffer at the size of the output. */
+ igt_assert(igt_create_fb(data->drm_fd,
+ mode->hdisplay,
+ mode->vdisplay,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_MOD_LINEAR,
+ &fb));
+
+ igt_assert(igt_create_fb(data->drm_fd,
+ mode->hdisplay,
+ mode->vdisplay,
+ DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_MOD_LINEAR,
+ &fbref));
+
+ disable_degamma(plane->pipe);
+ disable_ctm(plane->pipe);
+ disable_gamma(plane->pipe);
+
+ disable_plane_degamma(plane);
+ disable_plane_ctm(plane);
+ disable_plane_gamma(plane);
+
+ igt_plane_set_fb(plane, &fbref);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+
+ /* Draw solid colors with no degamma. */
+ paint_rectangles(data, mode, red_green_blue, &fbref);
+
+ degamma_mode = get_plane_gamma_degamma_mode(plane, IGT_PLANE_DEGAMMA_MODE);
+ /* Iterate all supported degamma modes. */
+ for (i = 0; i < degamma_mode->count_enums; i++) {
+ struct chamelium_frame_dump *frame_fullcolors;
+ segment_data_t *degamma_segment_info = NULL;
+ struct drm_color_lut_ext *degamma_lut = NULL;
+ uint32_t degamma_lut_size = 0;
+
+ /* Ignore 'no degamma' from enum list. */
+ if (!strcmp(degamma_mode->enums[i].name, "no degamma"))
+ continue;
+
+ degamma_segment_info = get_segment_data(data, degamma_mode->enums[i].value,
+ degamma_mode->enums[i].name);
+ degamma_lut_size = sizeof(struct drm_color_lut_ext) * degamma_segment_info->entries_count;
+ degamma_lut = create_max_lut(degamma_segment_info);
+
+ igt_info("Trying to use degamma mode: \'%s\'\n", degamma_mode->enums[i].name);
+
+ /* Draw a gradient with degamma LUT to remap all
+ * values to max red/green/blue.
+ */
+ paint_gradient_rectangles(data, mode, red_green_blue, &fb);
+ igt_plane_set_fb(plane, &fb);
+ set_plane_degamma(plane, degamma_mode->enums[i].name,
+ degamma_lut, degamma_lut_size);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+
+ chamelium_capture(data->chamelium, port, 0, 0, 0, 0, 1);
+ frame_fullcolors =
+ chamelium_read_captured_frame(data->chamelium, 0);
+
+ /* Verify that the framebuffer reference of the software computed
+ * output is equal to the frame dump of the gamma LUT
+ * transformation output.
+ */
+ ret &= chamelium_frame_match_or_dump(data->chamelium, port,
+ frame_fullcolors, &fbref,
+ CHAMELIUM_CHECK_ANALOG);
+
+ free(degamma_lut);
+ clear_segment_data(degamma_segment_info);
+ }
+
+ disable_plane_degamma(plane);
+ igt_plane_set_fb(plane, NULL);
+ igt_output_set_pipe(output, PIPE_NONE);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+
+ drmModeFreeProperty(degamma_mode);
+
+ return ret;
+}
+
static void run_plane_color_test(data_t *data, enum pipe pipe, test_t test)
{
igt_plane_t *plane;
@@ -903,6 +1029,11 @@ static void run_tests_for_plane(data_t *data, enum pipe pipe)
igt_subtest_f("pipe-%s-plane-gamma",
kmstest_pipe_name(pipe))
run_plane_color_test(data, pipe, plane_gamma_test);
+
+ igt_describe("Compare maxed out plane degamma LUT and solid color linear LUT");
+ igt_subtest_f("pipe-%s-plane-degamma",
+ kmstest_pipe_name(pipe))
+ run_plane_color_test(data, pipe, plane_degamma_test);
}
igt_main
--
2.32.0
