Lines Matching full:damage

1554  * DOC: damage tracking
1557  * specify a list of damage rectangles on a plane in framebuffer coordinates of
1558  * the framebuffer attached to the plane. In current context damage is the area
1568  * ignore damage clips property and in that case driver will do a full plane
1569  * update. In case damage clips are provided then it is guaranteed that the area
1570  * inside damage clips will be updated to plane. For efficiency driver can do
1571  * full update or can update more than specified in damage clips. Since driver
1574  * provides damage clips which doesn't encompass the actual damage to
1579  * damage clips are not in 16.16 fixed point. Similar to plane src in
1580  * framebuffer, damage clips cannot be negative. In damage clip, x1/y1 are
1582  * damage clips, it is strongly discouraged.
1584  * Drivers that are interested in damage interface for plane should enable
1586  * Drivers implementing damage can use drm_atomic_helper_damage_iter_init() and
1587  * drm_atomic_helper_damage_iter_next() helper iterator function to get damage
1590  * Note that there are two types of damage handling: frame damage and buffer
1591  * damage, the type of damage handling implemented depends on a driver's upload
1593  * handle frame damage, while drivers implementing a per-buffer upload target
1594  * need to handle buffer damage.
1596  * The existing damage helpers only support the frame damage type, there is no
1597  * buffer age support or similar damage accumulation algorithm implemented yet.
1599  * Only drivers handling frame damage can use the mentioned damage helpers to
1600  * iterate over the damaged regions. Drivers that handle buffer damage, must set
1602  * to know that damage clips should be ignored and return &drm_plane_state.src
1603  * as the damage rectangle, to force a full plane update.
1613  * can be improved in the future if support for frame damage is added to the DRM
1614  * damage helpers, similarly to how user-space already handle this case as it is
1618  *     https://emersion.fr/blog/2019/intro-to-damage-tracking/
1622  * drm_plane_enable_fb_damage_clips - Enables plane fb damage clips property.
1623  * @plane: Plane on which to enable damage clips property.
1625  * This function lets driver to enable the damage clips property on a plane.
1638  * drm_plane_get_damage_clips_count - Returns damage clips count.
1662  * drm_plane_get_damage_clips - Returns damage clips.
1668  * the driver can only handle a single damage region at most.
1670  * Return: Damage clips in plane fb_damage_clips blob property.