From 0cd62d65dc08fb0b47d834fe295de36868a7def5 Mon Sep 17 00:00:00 2001
From: Yin-Chia Yeh <yinchiayeh@google.com>
Date: Wed, 25 Jun 2014 15:37:24 -0700
Subject: [PATCH] Camera2: Add 3A maxRegions tag to legacy device

Change-Id: I8ab4164a7f4c6f210b000cb623cbc686e0e79a35
---
 .../hardware/camera2/legacy/LegacyMetadataMapper.java     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java b/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
index 164612075fc3a..4797e2040439d 100644
--- a/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
+++ b/core/java/android/hardware/camera2/legacy/LegacyMetadataMapper.java
@@ -346,6 +346,14 @@ public class LegacyMetadataMapper {
     }
 
     private static void mapControlOther(CameraMetadataNative m, Camera.Parameters p) {
+        /*
+         * android.control.maxRegions
+         */
+        int[] maxRegions = new int[3];
+        maxRegions[0] = p.getMaxNumMeteringAreas();
+        maxRegions[1] = 0; // AWB regions not supported in API1
+        maxRegions[2] = p.getMaxNumFocusAreas();
+        m.set(CONTROL_MAX_REGIONS, maxRegions);
         // TODO
     }