gralloc: provide methods for hwc to change handle of a plane

Patch changes reserve_plane to get id number as additional parameter.
This can be used by hwc to make changes to a particular plane. New
api hwc_set_plane_handle is introduced so that hwc can change the
buffer handle of a plane, this is required because after plane has
been reserved for a particular ui layer, this handle can change as
the layer is typically multibuffered.

Change-Id: I32d711ff3565ae9e8f5b8a6691c22b03a50cefe7
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/gralloc.c b/gralloc.c
index 873945d..92866ca 100644
--- a/gralloc.c
+++ b/gralloc.c
@@ -354,6 +354,7 @@ struct drm_module_t HAL_MODULE_INFO_SYM = {
 	},
 	.hwc_reserve_plane = gralloc_drm_reserve_plane,
 	.hwc_disable_planes = gralloc_drm_disable_planes,
+	.hwc_set_plane_handle = gralloc_drm_set_plane_handle,
 
 	.mutex = PTHREAD_MUTEX_INITIALIZER,
 	.drm = NULL