Camera HAL3/API1: Add support for the partial result quirk.

- Camera2Client:
 - Detect partial result quirk
- Camera3Device:
 - Accumulate all partial results together
 - Fire off 3A-only result once all 3A states are available
- FrameProcessorBase:
 - Filter out partials, don't send to listeners
- FrameProcessor:
 - Skip face detect on partials
 - Make sure to only handle a 3A update for a given frame once
 - Trigger AF notifications when AF mode or trigger changes, to
   properly detect all AF transitions.

Bug: 11115603
Change-Id: Iea8aa73c568701562a46071f7ea100624251d10b

1 files changed, 9 insertions, 1 deletions

diff --git a/camera/CameraMetadata.cpp b/camera/CameraMetadata.cpp
index f447c5b..7765914 100644
--- a/camera/CameraMetadata.cpp
+++ b/camera/CameraMetadata.cpp
@@ -133,11 +133,19 @@ void CameraMetadata::acquire(CameraMetadata &other) {
 }
 
 status_t CameraMetadata::append(const CameraMetadata &other) {
+    return append(other.mBuffer);
+}
+
+status_t CameraMetadata::append(const camera_metadata_t* other) {
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return INVALID_OPERATION;
     }
-    return append_camera_metadata(mBuffer, other.mBuffer);
+    size_t extraEntries = get_camera_metadata_entry_count(other);
+    size_t extraData = get_camera_metadata_data_count(other);
+    resizeIfNeeded(extraEntries, extraData);
+
+    return append_camera_metadata(mBuffer, other);
 }
 
 size_t CameraMetadata::entryCount() const {