gbm_device_get_backend_name
gbm_device_is_format_supported
gbm_device_destroy
+gbm_device_get_format_modifier_plane_count
gbm_create_device
gbm_bo_create
gbm_bo_create_with_modifiers
gbm_bo_get_stride
gbm_bo_get_stride_for_plane
gbm_bo_get_format
+gbm_bo_get_bpp
gbm_bo_get_offset
gbm_bo_get_device
gbm_bo_get_handle