Camera2: Add trigger support, and implement autofocus

- Add skeletons for all triggering actions into Camera2Device
- Add support for AF triggers to HAL
- Add support for AF notifications from HAL

Bug: 6243944
Change-Id: I21025440849ae41f7083e1dcb72c99f8e5b2d5f7

1 files changed, 9 insertions, 3 deletions

diff --git a/services/camera/libcameraservice/Camera2Client.h b/services/camera/libcameraservice/Camera2Client.h
index 8c10d6b..dffd4ab 100644
--- a/services/camera/libcameraservice/Camera2Client.h
+++ b/services/camera/libcameraservice/Camera2Client.h
@@ -200,6 +200,11 @@ private:
         // listed in Camera.Parameters
         bool storeMetadataInBuffers;
         bool playShutterSound;
+        bool enableFocusMoveMessages;
+
+        int afTriggerCounter;
+        int currentAfTriggerId;
+        bool afInMotion;
     };
 
     class LockedParameters {
@@ -313,9 +318,6 @@ private:
     camera_metadata_t *mRecordingRequest;
     sp<Camera2Heap> mRecordingHeap;
 
-    // TODO: This needs to be queried from somewhere, or the BufferQueue needs
-    // to be passed all the way to stagefright. Right now, set to a large number
-    // to avoid starvation of the video encoders.
     static const size_t kDefaultRecordingHeapCount = 8;
     size_t mRecordingHeapCount;
     size_t mRecordingHeapHead, mRecordingHeapFree;
@@ -325,6 +327,10 @@ private:
     status_t updateRecordingRequest(const Parameters &params);
     status_t updateRecordingStream(const Parameters &params);
 
+    /** Notification-related members */
+
+    bool mAfInMotion;
+
     /** Camera2Device instance wrapping HAL2 entry */
 
     sp<Camera2Device> mDevice;