To verify plane CTM, draw 3 rectangles using before colors with the
ctm matrix applied and verify the CRC is equal to using after colors
with an identify ctm matrix.
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>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@xxxxxxxxx>
---
tests/kms_color.c | 225 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 225 insertions(+)
diff --git a/tests/kms_color.c b/tests/kms_color.c
index 920a5eaadd..e14b37cb6f 100644
--- a/tests/kms_color.c
+++ b/tests/kms_color.c
@@ -53,6 +53,77 @@ static bool is_valid_plane(igt_plane_t *plane)
return index >= 0 && index < MAX_SUPPORTED_PLANES;
}
+struct {
+ const char *test_name;
+ int iter;
+ color_t expected_colors[3];
+ double ctm[9];
+} ctm_tests[] = {
+ {"plane-ctm-red-to-blue", 0,
+ {{ 0.0, 0.0, 1.0 },
+ { 0.0, 1.0, 0.0 },
+ { 0.0, 0.0, 1.0 }},
+ { 0.0, 0.0, 0.0,
+ 0.0, 1.0, 0.0,
+ 1.0, 0.0, 1.0 },
+ },
+ {"plane-ctm-green-to-red", 0,
+ {{ 1.0, 0.0, 0.0 },
+ { 1.0, 0.0, 0.0 },
+ { 0.0, 0.0, 1.0 }},
+ { 1.0, 1.0, 0.0,
+ 0.0, 0.0, 0.0,
+ 0.0, 0.0, 1.0 },
+ },
+ {"plane-ctm-blue-to-red", 0,
+ {{ 1.0, 0.0, 0.0 },
+ { 0.0, 1.0, 0.0 },
+ { 1.0, 0.0, 0.0 }},
+ { 1.0, 0.0, 1.0,
+ 0.0, 1.0, 0.0,
+ 0.0, 0.0, 0.0 },
+ },
+ {"plane-ctm-max", 0,
+ {{ 1.0, 0.0, 0.0 },
+ { 0.0, 1.0, 0.0 },
+ { 0.0, 0.0, 1.0 }},
+ { 100.0, 0.0, 0.0,
+ 0.0, 100.0, 0.0,
+ 0.0, 0.0, 100.0 },
+ },
+ {"plane-ctm-negative", 0,
+ {{ 0.0, 0.0, 0.0 },
+ { 0.0, 0.0, 0.0 },
+ { 0.0, 0.0, 0.0 }},
+ { -1.0, 0.0, 0.0,
+ 0.0, -1.0, 0.0,
+ 0.0, 0.0, -1.0 },
+ },
+ /* We tests a few values around the expected result because
+ * it depends on the hardware we're dealing with, we can
+ * either get clamped or rounded values and we also need to
+ * account for odd number of items in the LUTs.
+ */
+ {"plane-ctm-0-25", 5,
+ {{ 0.0, }, { 0.0, }, { 0.0, }},
+ { 0.25, 0.0, 0.0,
+ 0.0, 0.25, 0.0,
+ 0.0, 0.0, 0.25 },
+ },
+ {"plane-ctm-0-50", 5,
+ {{ 0.0, }, { 0.0, }, { 0.0, }},
+ { 0.5, 0.0, 0.0,
+ 0.0, 0.5, 0.0,
+ 0.0, 0.0, 0.5 },
+ },
+ {"plane-ctm-0-75", 7,
+ {{ 0.0, }, { 0.0, }, { 0.0, }},
+ { 0.75, 0.0, 0.0,
+ 0.0, 0.75, 0.0,
+ 0.0, 0.0, 0.75 },
+ },
+};
+
static void test_pipe_degamma(data_t *data,
igt_plane_t *primary)
{
@@ -900,6 +971,99 @@ static bool plane_degamma_test(data_t *data, igt_plane_t *plane)
return ret;
}
+static bool test_plane_ctm(data_t *data,
+ igt_plane_t *plane,
+ color_t *before,
+ color_t *after,
+ double *ctm_matrix)
+{
+ const double ctm_identity[] = {
+ 1.0, 0.0, 0.0,
+ 0.0, 1.0, 0.0,
+ 0.0, 0.0, 1.0
+ };
+ igt_output_t *output;
+ igt_display_t *display = &data->display;
+ drmModeModeInfo *mode;
+ struct igt_fb fb;
+ igt_crc_t crc_software, crc_hardware;
+ igt_pipe_crc_t *pipe_crc = NULL;
+ bool ret = true;
+
+ igt_info("Plane CTM 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_CTM));
+
+ pipe_crc = igt_pipe_crc_new(data->drm_fd,
+ plane->pipe->pipe,
+ INTEL_PIPE_CRC_SOURCE_AUTO);
+
+ output = igt_get_single_output_for_pipe(display, plane->pipe->pipe);
+ 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_plane_set_fb(plane, &fb);
+
+ /* Disable Pipe color props. */
+ disable_degamma(plane->pipe);
+ disable_gamma(plane->pipe);
+ disable_ctm(plane->pipe);
+
+ disable_plane_gamma(plane);
+ disable_plane_degamma(plane);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+
+ /* Without CTM transformation. */
+ paint_rectangles(data, mode, after, &fb);
+ igt_plane_set_fb(plane, &fb);
+ set_plane_ctm(plane, ctm_identity);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+ igt_wait_for_vblank(data->drm_fd,
+ display->pipes[plane->pipe->pipe].crtc_offset);
+ igt_pipe_crc_collect_crc(pipe_crc, &crc_software);
+
+ /* With CTM transformation. */
+ paint_rectangles(data, mode, before, &fb);
+ igt_plane_set_fb(plane, &fb);
+ set_plane_ctm(plane, ctm_matrix);
+ igt_display_commit2(display, display->is_atomic ?
+ COMMIT_ATOMIC : COMMIT_LEGACY);
+ igt_wait_for_vblank(data->drm_fd,
+ display->pipes[plane->pipe->pipe].crtc_offset);
+ igt_pipe_crc_collect_crc(pipe_crc, &crc_hardware);
+
+ /* Verify that the CRC of the software computed ouutput
+ * is equal to the CRC of the CTM matrix transformation
+ * output.
+ */
+ ret = igt_check_crc_equal(&crc_software, &crc_hardware);
+
+ disable_plane_ctm(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);
+
+ igt_pipe_crc_free(pipe_crc);
+
+ return ret;
+}
+
static void
prep_pipe(data_t *data, enum pipe p)
{
@@ -1169,8 +1333,57 @@ static void run_plane_color_test(data_t *data, enum pipe pipe, test_t test)
igt_require_f(count, "No valid planes found.\n");
}
+static void run_plane_ctm_test(data_t *data,
+ enum pipe pipe,
+ color_t *expected,
+ double *ctm,
+ int iter)
+{
+ igt_plane_t *plane;
+ bool result;
+ int i, count = 0;
+ double delta = 1.0 / (1 << 8);
+ color_t red_green_blue[] = {
+ { 1.0, 0.0, 0.0 },
+ { 0.0, 1.0, 0.0 },
+ { 0.0, 0.0, 1.0 }
+ };
+
+ for_each_plane_on_pipe(&data->display, pipe, plane) {
+ if (!is_valid_plane(plane))
+ continue;
+
+ result = false;
+
+ if (!iter)
+ result |= test_plane_ctm(data, plane,
+ red_green_blue, expected,
+ ctm);
+
+ for (i = 0; i < iter; i++) {
+ expected[0].r =
+ expected[1].g =
+ expected[2].b =
+ ctm[0] + delta * (i - (iter/2));
+
+ result |= test_plane_ctm(data, plane,
+ red_green_blue, expected,
+ ctm);
+ if (result)
+ break;
+ }
+
+ igt_assert(result);
+ count++;
+ }
+
+ igt_require_f(count, "No valid planes found.\n");
+}
+
static void run_tests_for_plane(data_t *data, enum pipe pipe)
{
+ int i;
+
igt_fixture {
igt_require_pipe(&data->display, pipe);
igt_require_pipe_crc(data->drm_fd);
@@ -1186,6 +1399,18 @@ static void run_tests_for_plane(data_t *data, enum pipe pipe)
igt_subtest_f("pipe-%s-plane-degamma",
kmstest_pipe_name(pipe))
run_plane_color_test(data, pipe, plane_degamma_test);
+
+ for (i = 0; i < ARRAY_SIZE(ctm_tests); i++) {
+ igt_describe("Compare after applying ctm matrix & identity matrix");
+ igt_subtest_f("pipe-%s-%s",
+ kmstest_pipe_name(pipe),
+ ctm_tests[i].test_name) {
+ run_plane_ctm_test(data, pipe,
+ ctm_tests[i].expected_colors,
+ ctm_tests[i].ctm,
+ ctm_tests[i].iter);
+ }
+ }
}
igt_main
--
2.32.0
