android/apps: Add CanvasProof App;

platform_tools/android/apps/canvasproof/src/main/java/org/skia/canvasproof/CreateSkiaPicture.java

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+/*
+AJAR=$ANDROID_SDK_ROOT/platforms/android-19/android.jar
+CLASS=CreateSkiaPicture
+SRC=platform_tools/android/apps/canvasproof/src/main
+javac -classpath $AJAR $SRC/java/org/skia/canvasproof/$CLASS.java
+javah -classpath $AJAR:$SRC/java -d $SRC/jni org.skia.canvasproof.$CLASS
+*/
+
+package org.skia.canvasproof;
+
+import android.util.Log;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.UnsatisfiedLinkError;
+
+public class CreateSkiaPicture {
+    private static final String TAG = "CreateSkiaPicture";
+
+    public static void init() {
+        try {
+            System.loadLibrary("skia_android");
+            System.loadLibrary("canvasproof");
+        } catch (java.lang.Error e) {
+            Log.v(TAG, "System.loadLibrary error", e);
+        }
+    }
+
+    public static long create(InputStream inputStream) throws IOException {
+        byte[] buffer = new byte[16 * (1 << 10)];  // 16 KByte
+        long p = 0;
+        try {
+            p = CreateSkiaPicture.createImpl(inputStream, buffer);
+        } catch (UnsatisfiedLinkError e) {
+            Log.e(TAG, "UnsatisfiedLinkError createImpl");
+        }
+        inputStream.close();
+        return p;
+    }
+
+    public static void delete(long ptr) {
+        try {
+            if (ptr != 0) {
+                CreateSkiaPicture.deleteImpl(ptr);
+            }
+        } catch (UnsatisfiedLinkError e) {
+            Log.e(TAG, "UnsatisfiedLinkError deleteImpl");
+        }
+
+    }
+    public static native void deleteImpl(long ptr);

[djsollen, 2015/09/01 13:13:29]

does this need to be public?

[hal.canary, 2015/09/16 18:31:34]

nope.  fixed.

+    private static native long createImpl(InputStream s, byte[] b);
+}