Add camera focus move callback. (9d062cfe) · Commits · e / os / android_frameworks_base

core/java/android/hardware/Camera.java

+42 −1

Original line number	Diff line number	Diff line
		@@ -138,7 +138,7 @@ public class Camera {
		private static final int CAMERA_MSG_COMPRESSED_IMAGE = 0x100;
		private static final int CAMERA_MSG_RAW_IMAGE_NOTIFY = 0x200;
		private static final int CAMERA_MSG_PREVIEW_METADATA = 0x400;
		private static final int CAMERA_MSG_ALL_MSGS = 0x4FF;
		private static final int CAMERA_MSG_FOCUS_MOVE = 0x800;

		private int mNativeContext; // accessed by native methods
		private EventHandler mEventHandler;
		@@ -148,6 +148,7 @@ public class Camera {
		private PreviewCallback mPreviewCallback;
		private PictureCallback mPostviewCallback;
		private AutoFocusCallback mAutoFocusCallback;
		private AutoFocusMoveCallback mAutoFocusMoveCallback;
		private OnZoomChangeListener mZoomListener;
		private FaceDetectionListener mFaceListener;
		private ErrorCallback mErrorCallback;
		@@ -492,6 +493,7 @@ public class Camera {
		mPostviewCallback = null;
		mJpegCallback = null;
		mAutoFocusCallback = null;
		mAutoFocusMoveCallback = null;
		}

		private native final void _stopPreview();
		@@ -737,6 +739,12 @@ public class Camera {
		}
		return;

		case CAMERA_MSG_FOCUS_MOVE:
		if (mAutoFocusMoveCallback != null) {
		mAutoFocusMoveCallback.onAutoFocusMoving(msg.arg1 == 0 ? false : true, mCamera);
		}
		return;

		default:
		Log.e(TAG, "Unknown message type " + msg.what);
		return;
		@@ -848,6 +856,39 @@ public class Camera {
		}
		private native final void native_cancelAutoFocus();

		/**
		* Callback interface used to notify on auto focus start and stop.
		*
		* <p>This is useful for continuous autofocus -- {@link Parameters#FOCUS_MODE_CONTINUOUS_VIDEO}
		* and {@link Parameters#FOCUS_MODE_CONTINUOUS_PICTURE}. Applications can
		* show autofocus animation.</p>
		*
		* @hide
		*/
		public interface AutoFocusMoveCallback
		{
		/**
		* Called when the camera auto focus starts or stops.
		*
		* @param start true if focus starts to move, false if focus stops to move
		* @param camera the Camera service object
		*/
		void onAutoFocusMoving(boolean start, Camera camera);
		}

		/**
		* Sets camera auto-focus move callback.
		*
		* @param cb the callback to run
		* @hide
		*/
		public void setAutoFocusMoveCallback(AutoFocusMoveCallback cb) {
		mAutoFocusMoveCallback = cb;
		enableFocusMoveCallback((mAutoFocusMoveCallback != null) ? 1 : 0);
		}

		private native void enableFocusMoveCallback(int enable);

		/**
		* Callback interface used to signal the moment of actual image capture.
		*

core/jni/android_hardware_Camera.cpp

+14 −0

Original line number	Diff line number	Diff line
		@@ -795,6 +795,17 @@ static void android_hardware_Camera_stopFaceDetection(JNIEnv *env, jobject thiz)
		}
		}

		static void android_hardware_Camera_enableFocusMoveCallback(JNIEnv *env, jobject thiz, jint enable)
		{
		LOGV("enableFocusMoveCallback");
		sp<Camera> camera = get_native_camera(env, thiz, NULL);
		if (camera == 0) return;

		if (camera->sendCommand(CAMERA_CMD_ENABLE_FOCUS_MOVE_MSG, enable, 0) != NO_ERROR) {
		jniThrowRuntimeException(env, "enable focus move callback failed");
		}
		}

		//-------------------------------------------------

		static JNINativeMethod camMethods[] = {
		@@ -870,6 +881,9 @@ static JNINativeMethod camMethods[] = {
		{ "_stopFaceDetection",
		"()V",
		(void *)android_hardware_Camera_stopFaceDetection},
		{ "enableFocusMoveCallback",
		"(I)V",
		(void *)android_hardware_Camera_enableFocusMoveCallback},
		};

		struct field {

services/camera/libcameraservice/CameraService.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -361,7 +361,7 @@ CameraService::Client::Client(const sp<CameraService>& cameraService,

		// Enable zoom, error, focus, and metadata messages by default
		enableMsgType(CAMERA_MSG_ERROR \| CAMERA_MSG_ZOOM \| CAMERA_MSG_FOCUS \|
		CAMERA_MSG_PREVIEW_METADATA);
		CAMERA_MSG_PREVIEW_METADATA \| CAMERA_MSG_FOCUS_MOVE);

		// Callback is disabled by default
		mPreviewCallbackFlag = CAMERA_FRAME_CALLBACK_FLAG_NOOP;