camera2-portability: Add support for previews using the camera2 API

At the moment, only SurfaceTextures (and not SurfaceViews/SurfaceHolders) are
supported. The tests still only cover Stringifier and IntegralStringifier.

Change-Id: Ie643c58f8383cd3b9f59c16e0b79239df0ca068d

1 files changed, 27 insertions, 0 deletions

diff --git a/camera2/portability/src/com/android/ex/camera2/portability/Size.java b/camera2/portability/src/com/android/ex/camera2/portability/Size.java
index 9ae21aa..042c443 100644
--- a/camera2/portability/src/com/android/ex/camera2/portability/Size.java
+++ b/camera2/portability/src/com/android/ex/camera2/portability/Size.java
@@ -45,6 +45,20 @@ public class Size {
     }
 
     /**
+     * A helper method to build a list of this class from a list of {@link android.util.Size}.
+     *
+     * @param cameraSizes Source.
+     * @return The built list.
+     */
+    public static List<Size> buildListFromAndroidSizes(List<android.util.Size> androidSizes) {
+        ArrayList<Size> list = new ArrayList<Size>(androidSizes.size());
+        for (android.util.Size androidSize : androidSizes) {
+            list.add(new Size(androidSize));
+        }
+        return list;
+    }
+
+    /**
      * Encode List of this class as comma-separated list of integers.
      *
      * @param sizes List of this class to encode.
@@ -110,6 +124,19 @@ public class Size {
     }
 
     /**
+     * Constructor from a source {@link android.util.Size}.
+     *
+     * @param other The source size.
+     */
+    public Size(android.util.Size other) {
+        if (other == null) {
+            val = new Point(0, 0);
+        } else {
+            val = new Point(other.getWidth(), other.getHeight());
+        }
+    }
+
+    /**
      * Constructor from a source {@link android.graphics.Point}.
      *
      * @param p The source size.