SnapdragonCamera: Camera2 add touch to focus

Add touch to focus to Camera2

CRs-Fixed: 989750
Change-Id: I5c7c85dcc12eefb11e5f1b5e6a823a327b2647e4

1 files changed, 21 insertions, 4 deletions

diff --git a/src/com/android/camera/util/CameraUtil.java b/src/com/android/camera/util/CameraUtil.java
index be66091e2..b1deca6e0 100644
--- a/src/com/android/camera/util/CameraUtil.java
+++ b/src/com/android/camera/util/CameraUtil.java
@@ -1171,13 +1171,30 @@ public class CameraUtil {
 
     public static boolean isZoomSupported(CameraCharacteristics[] characteristics, List<Integer>
             characteristicsIndex) {
-        boolean supported = true;
+        for (int i = 0; i < characteristicsIndex.size(); i++) {
+            if (!isZoomSupported(characteristics[characteristicsIndex.get(i)]))
+                return false;
+        }
+        return true;
+    }
 
+    public static boolean isZoomSupported(CameraCharacteristics characteristic) {
+        return characteristic.get(CameraCharacteristics
+                .SCALER_AVAILABLE_MAX_DIGITAL_ZOOM) > 1f;
+    }
+
+    public static boolean isAutoFocusSupported(CameraCharacteristics[] characteristics, List<Integer>
+            characteristicsIndex) {
         for (int i = 0; i < characteristicsIndex.size(); i++) {
-            if (characteristics[characteristicsIndex.get(i)].get(CameraCharacteristics
-                    .SCALER_AVAILABLE_MAX_DIGITAL_ZOOM) <= 1f)
+            if (!isAutoFocusSupported(characteristics[characteristicsIndex.get(i)]))
                 return false;
         }
-        return supported;
+        return true;
+    }
+
+    public static boolean isAutoFocusSupported(CameraCharacteristics characteristic) {
+        Integer maxAfRegions = characteristic.get(
+                CameraCharacteristics.CONTROL_MAX_REGIONS_AF);
+        return maxAfRegions != null && maxAfRegions > 0;
     }
 }