Bring back the custom wallpaper picker [1/5]

This is the WallpaperPicker found in Trebuchet, with the following
key features:

  - Set launcher wallpaper as well as lock screen wallpaper
  - Direct support for "no wallpaper"
  - Loads wallpapers from themes ;)
  - Supports partner wallpapers

Change-Id: I6992a5017694bae5023cddf34db576da8795021e
TICKET: OSS-62

1 files changed, 39 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/exif/JpegHeader.java b/src/com/android/gallery3d/exif/JpegHeader.java
new file mode 100644
index 0000000..e3e787e
--- /dev/null
+++ b/src/com/android/gallery3d/exif/JpegHeader.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.exif;
+
+class JpegHeader {
+    public static final short SOI =  (short) 0xFFD8;
+    public static final short APP1 = (short) 0xFFE1;
+    public static final short APP0 = (short) 0xFFE0;
+    public static final short EOI = (short) 0xFFD9;
+
+    /**
+     *  SOF (start of frame). All value between SOF0 and SOF15 is SOF marker except for DHT, JPG,
+     *  and DAC marker.
+     */
+    public static final short SOF0 = (short) 0xFFC0;
+    public static final short SOF15 = (short) 0xFFCF;
+    public static final short DHT = (short) 0xFFC4;
+    public static final short JPG = (short) 0xFFC8;
+    public static final short DAC = (short) 0xFFCC;
+
+    public static final boolean isSofMarker(short marker) {
+        return marker >= SOF0 && marker <= SOF15 && marker != DHT && marker != JPG
+                && marker != DAC;
+    }
+}