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| author | Tapani Pälli <tapani.palli@intel.com> | 2013-05-03 10:08:54 +0300 |
|---|---|---|
| committer | Tapani Pälli <tapani.palli@intel.com> | 2013-05-13 15:28:35 +0300 |
| commit | a872ecf380bfb33a1e17878d7d7ac16d1730dc09 (patch) | |
| tree | 65cfc8edea3b91fe9da22635a52dbff5b9d8345e /gralloc_drm_kms.c | |
| parent | 29b01951d54470f495e1097bd779342d618daf7a (diff) | |
| download | external_drm_gralloc-a872ecf380bfb33a1e17878d7d7ac16d1730dc09.zip external_drm_gralloc-a872ecf380bfb33a1e17878d7d7ac16d1730dc09.tar.gz external_drm_gralloc-a872ecf380bfb33a1e17878d7d7ac16d1730dc09.tar.bz2 | |
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>
Diffstat (limited to 'gralloc_drm_kms.c')
| -rw-r--r-- | gralloc_drm_kms.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/gralloc_drm_kms.c b/gralloc_drm_kms.c index 1e64312..952998a 100644 --- a/gralloc_drm_kms.c +++ b/gralloc_drm_kms.c @@ -287,6 +287,7 @@ static void gralloc_drm_set_planes(struct gralloc_drm_t *drm) */ int gralloc_drm_reserve_plane(struct gralloc_drm_t *drm, buffer_handle_t handle, + uint32_t id, uint32_t dst_x, uint32_t dst_y, uint32_t dst_w, @@ -333,6 +334,7 @@ int gralloc_drm_reserve_plane(struct gralloc_drm_t *drm, plane->src_w = src_w; plane->src_h = src_h; plane->handle = handle; + plane->id = id; plane->active = 1; return 0; @@ -344,17 +346,38 @@ int gralloc_drm_reserve_plane(struct gralloc_drm_t *drm, } /* - * Interface for HWC, used to disable all the overlays. + * Interface for HWC, used to disable all the overlays. Plane id + * is also set to 0 as it should be mappable to a particular layer only + * if it has been reserved with 'reserve_plane'. */ void gralloc_drm_disable_planes(struct gralloc_drm_t *drm) { struct gralloc_drm_plane_t *plane = drm->planes; unsigned int i; - for (i = 0; i < drm->plane_resources->count_planes; i++, plane++) + for (i = 0; i < drm->plane_resources->count_planes; i++, plane++) { plane->active = 0; + plane->id = 0; + } } +/* + * Interface for HWC, used to change handle of a reserved plane. + */ +int gralloc_drm_set_plane_handle(struct gralloc_drm_t *drm, + uint32_t id, buffer_handle_t handle) +{ + struct gralloc_drm_plane_t *plane = drm->planes; + unsigned i; + + for (i = 0; i < drm->plane_resources->count_planes; i++, plane++) + if (plane->active && plane->id == id) { + plane->handle = handle; + return 0; + } + + return -EINVAL; +} /* * Schedule a page flip. |