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@amd.com Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Juha-Pekka Heikkila juhapekka.heikkila@gmail.com Cc: Uma Shankar uma.shankar@intel.com Signed-off-by: Bhanuprakash Modem bhanuprakash.modem@intel.com --- 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