/**
* 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;
}
