/** * igt_pipe_crc_start: * @pipe_crc: pipe CRC object * * Starts the CRC capture process on @pipe_crc. */ void igt_pipe_crc_start(igt_pipe_crc_t *pipe_crc) { igt_crc_t *crcs = NULL; igt_assert(igt_pipe_crc_do_start(pipe_crc)); /* * For some no yet identified reason, the first CRC is bonkers. So * let's just wait for the next vblank and read out the buggy result. * * On CHV sometimes the second CRC is bonkers as well, so don't trust * that one either. */ igt_pipe_crc_get_crcs(pipe_crc, 2, &crcs); free(crcs); }
static int test_read_crc_for_output(data_t *data, int pipe, igt_output_t *output, unsigned flags) { igt_display_t *display = &data->display; igt_plane_t *primary; drmModeModeInfo *mode; igt_pipe_crc_t *pipe_crc; igt_crc_t *crcs = NULL; int c, j; for (c = 0; c < ARRAY_SIZE(colors); c++) { char *crc_str; int n_crcs; igt_output_set_pipe(output, pipe); igt_display_commit(display); if (!output->valid) { igt_output_set_pipe(output, PIPE_ANY); return 0; } igt_debug("Clearing the fb with color (%.02lf,%.02lf,%.02lf)\n", colors[c].r, colors[c].g, colors[c].b); mode = igt_output_get_mode(output); igt_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay, DRM_FORMAT_XRGB8888, LOCAL_DRM_FORMAT_MOD_NONE, colors[c].r, colors[c].g, colors[c].b, &data->fb); primary = igt_output_get_plane(output, 0); igt_plane_set_fb(primary, &data->fb); igt_display_commit(display); if (flags & TEST_NONBLOCK) pipe_crc = igt_pipe_crc_new_nonblock(pipe, INTEL_PIPE_CRC_SOURCE_AUTO); else pipe_crc = igt_pipe_crc_new(pipe, INTEL_PIPE_CRC_SOURCE_AUTO); igt_pipe_crc_start(pipe_crc); /* wait for N_CRCS vblanks and the corresponding N_CRCS CRCs */ if (flags & TEST_NONBLOCK) { int i; for (i = 0; i < N_CRCS; i++) igt_wait_for_vblank(data->drm_fd, pipe); n_crcs = igt_pipe_crc_get_crcs(pipe_crc, N_CRCS * 3, &crcs); /* allow a one frame difference */ igt_assert_lte(n_crcs, N_CRCS + 1); igt_assert_lte(N_CRCS, n_crcs + 1); } else { n_crcs = igt_pipe_crc_get_crcs(pipe_crc, N_CRCS, &crcs); igt_assert_eq(n_crcs, N_CRCS); } igt_pipe_crc_stop(pipe_crc); /* * save the CRC in colors so it can be compared to the CRC of * other fbs */ colors[c].crc = crcs[0]; crc_str = igt_crc_to_string(&crcs[0]); igt_debug("CRC for this fb: %s\n", crc_str); free(crc_str); /* and ensure that they'are all equal, we haven't changed the fb */ for (j = 0; j < (n_crcs - 1); j++) igt_assert_crc_equal(&crcs[j], &crcs[j + 1]); if (flags & TEST_SEQUENCE) for (j = 0; j < (n_crcs - 1); j++) igt_assert_eq(crcs[j].frame + 1, crcs[j + 1].frame); free(crcs); igt_pipe_crc_free(pipe_crc); igt_remove_fb(data->drm_fd, &data->fb); igt_plane_set_fb(primary, NULL); igt_output_set_pipe(output, PIPE_ANY); } return 1; }