diff options
Diffstat (limited to 'gralloc_drm_kms.c')
| -rw-r--r-- | gralloc_drm_kms.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gralloc_drm_kms.c b/gralloc_drm_kms.c index a921e6c..91e7e63 100644 --- a/gralloc_drm_kms.c +++ b/gralloc_drm_kms.c @@ -87,6 +87,29 @@ static int resolve_drm_format(struct gralloc_drm_bo_t *bo, } /* + * Returns planes that are supported for a particular format + */ +unsigned int planes_for_format(struct gralloc_drm_t *drm, + int hal_format) +{ + unsigned int i, j, mask = 0; + unsigned int drm_format = drm_format_from_hal(hal_format); + struct gralloc_drm_plane_t *plane = drm->planes; + + /* no planes available */ + if (!plane) + return 0; + + /* iterate through planes, mark those that match format */ + for (i=0; i<drm->plane_resources->count_planes; i++, plane++) + for (j=0; j<plane->drm_plane->count_formats; j++) + if (plane->drm_plane->formats[j] == drm_format) + mask |= (2 << plane->drm_plane->plane_id); + + return mask; +} + +/* * Add a fb object for a bo. */ int gralloc_drm_bo_add_fb(struct gralloc_drm_bo_t *bo) |