From ced60586c2bf376b46c0daedb0903098fa0a4dec Mon Sep 17 00:00:00 2001
From: Mattia Iavarone <mat.iavarone@gmail.com>
Date: Wed, 22 Nov 2017 11:12:31 +0100
Subject: [PATCH] Change the offset computation for front cameras (#112)

---
 .../java/com/otaliastudios/cameraview/CameraController.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java
index a5d80006..a7387fd7 100644
--- a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java
+++ b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java
@@ -406,8 +406,9 @@ abstract class CameraController implements
      */
     protected final int computeSensorToViewOffset() {
         if (mFacing == Facing.FRONT) {
-            // or: (360 - ((mSensorOffset + mDisplayOffset) % 360)) % 360;
-            return ((mSensorOffset - mDisplayOffset) + 360 + 180) % 360;
+            // Here we had ((mSensorOffset - mDisplayOffset) + 360 + 180) % 360
+            // And it seemed to give the same results for various combinations, but not for all (e.g. 0 - 270).
+            return (360 - ((mSensorOffset + mDisplayOffset) % 360)) % 360;
         } else {
             return (mSensorOffset - mDisplayOffset + 360) % 360;
         }