examples: Add a new SDL2 based Android example

This adds another examples/android project that uses SDL instead of
glib. The example itself is a copy of examples/cogl-sdl2-hello.c
which includes basic input handling to move a triangle around the
screen.

28 files changed, 1502 insertions, 0 deletions

diff --git a/examples/android/hello/.gitignore b/examples/android/hello-glib/.gitignore
index 7fdabdd4..7fdabdd4 100644
--- a/examples/android/hello/.gitignore
+++ b/examples/android/hello-glib/.gitignore
diff --git a/examples/android/hello/AndroidManifest.xml b/examples/android/hello-glib/AndroidManifest.xml
index 3cb6026f..3cb6026f 100644
--- a/examples/android/hello/AndroidManifest.xml
+++ b/examples/android/hello-glib/AndroidManifest.xml
diff --git a/examples/android/hello/build.xml b/examples/android/hello-glib/build.xml
index d69afbc3..d69afbc3 100644
--- a/examples/android/hello/build.xml
+++ b/examples/android/hello-glib/build.xml
diff --git a/examples/android/hello/jni/Android.mk b/examples/android/hello-glib/jni/Android.mk
index 25c73d2d..25c73d2d 100644
--- a/examples/android/hello/jni/Android.mk
+++ b/examples/android/hello-glib/jni/Android.mk
diff --git a/examples/android/hello/jni/Application.mk b/examples/android/hello-glib/jni/Application.mk
index 22d188e5..22d188e5 100644
--- a/examples/android/hello/jni/Application.mk
+++ b/examples/android/hello-glib/jni/Application.mk
diff --git a/examples/android/hello/jni/main.c b/examples/android/hello-glib/jni/main.c
index c9a84018..c9a84018 100644
--- a/examples/android/hello/jni/main.c
+++ b/examples/android/hello-glib/jni/main.c
diff --git a/examples/android/hello/res/values/strings.xml b/examples/android/hello-glib/res/values/strings.xml
index e4cdec03..e4cdec03 100644
--- a/examples/android/hello/res/values/strings.xml
+++ b/examples/android/hello-glib/res/values/strings.xml
diff --git a/examples/android/hello-sdl/AndroidManifest.xml b/examples/android/hello-sdl/AndroidManifest.xml
new file mode 100644
index 00000000..dc8450a6
--- /dev/null
+++ b/examples/android/hello-sdl/AndroidManifest.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Replace org.libsdl.app with the identifier of your game below, e.g.
+     com.gamemaker.game
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="org.libsdl.app"
+      android:versionCode="1"
+      android:versionName="1.0"
+      android:installLocation="auto">
+
+    <!-- Create a Java class extending SDLActivity and place it in a
+         directory under src matching the package, e.g.
+         	src/com/gamemaker/game/MyGame.java
+
+         then replace "SDLActivity" with the name of your class (e.g. "MyGame")
+         in the XML below.
+
+         An example Java class can be found in README-android.txt
+    -->
+    <application android:label="@string/app_name"
+                 android:icon="@drawable/ic_launcher"
+                 android:allowBackup="true"
+                 android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+                 android:hardwareAccelerated="true" >
+        <activity android:name="SDLActivity"
+                  android:label="@string/app_name"
+                  android:configChanges="keyboardHidden|orientation"
+                  >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+    <!-- Android 2.3.3 -->
+    <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="12" />
+
+    <!-- OpenGL ES 2.0 -->
+    <uses-feature android:glEsVersion="0x00020000" /> 
+
+    <!-- Allow writing to external storage -->
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
+</manifest> 
diff --git a/examples/android/hello-sdl/README b/examples/android/hello-sdl/README
new file mode 100644
index 00000000..59236c09
--- /dev/null
+++ b/examples/android/hello-sdl/README
@@ -0,0 +1,26 @@
+Before building this example you need to symlink a copy of the SDL
+source under the jni/ directory:
+
+$ cd jni/
+$ ln -s /path/to/sdl-source SDL
+
+You may need to update the project for your target:
+
+$ android list target
+$ android update project -p . -t android-15
+
+Build the example by running:
+
+$ ndk-build
+
+Or a debug build with:
+
+$ ndk-build NDK_BUILD=1
+
+Package the example by running:
+
+$ ant debug
+
+Install the example to a device with:
+
+$ ant debug install
diff --git a/examples/android/hello-sdl/ant.properties b/examples/android/hello-sdl/ant.properties
new file mode 100644
index 00000000..b0971e89
--- /dev/null
+++ b/examples/android/hello-sdl/ant.properties
@@ -0,0 +1,17 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked into Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
diff --git a/examples/android/hello-sdl/build.properties b/examples/android/hello-sdl/build.properties
new file mode 100644
index 00000000..edc7f230
--- /dev/null
+++ b/examples/android/hello-sdl/build.properties
@@ -0,0 +1,17 @@
+# This file is used to override default values used by the Ant build system.
+# 
+# This file must be checked in Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
diff --git a/examples/android/hello-sdl/build.xml b/examples/android/hello-sdl/build.xml
new file mode 100644
index 00000000..9f19a077
--- /dev/null
+++ b/examples/android/hello-sdl/build.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This should be changed to the name of your project -->
+<project name="SDLActivity" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>
diff --git a/examples/android/hello-sdl/default.properties b/examples/android/hello-sdl/default.properties
new file mode 100644
index 00000000..0cdab956
--- /dev/null
+++ b/examples/android/hello-sdl/default.properties
@@ -0,0 +1,11 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-12
diff --git a/examples/android/hello-sdl/jni/Android.mk b/examples/android/hello-sdl/jni/Android.mk
new file mode 100644
index 00000000..bf676f46
--- /dev/null
+++ b/examples/android/hello-sdl/jni/Android.mk
@@ -0,0 +1,4 @@
+TOP_PATH := $(call my-dir)
+include $(TOP_PATH)/SDL/Android.mk
+include $(TOP_PATH)/Cogl/Android.mk
+include $(TOP_PATH)/src/Android.mk
diff --git a/examples/android/hello-sdl/jni/Application.mk b/examples/android/hello-sdl/jni/Application.mk
new file mode 100644
index 00000000..e5b50793
--- /dev/null
+++ b/examples/android/hello-sdl/jni/Application.mk
@@ -0,0 +1,6 @@
+
+# Uncomment this if you're using STL in your project
+# See CPLUSPLUS-SUPPORT.html in the NDK documentation for more information
+# APP_STL := stlport_static 
+
+APP_ABI := armeabi armeabi-v7a x86
diff --git a/examples/android/hello-sdl/jni/Cogl b/examples/android/hello-sdl/jni/Cogl
new file mode 120000
index 00000000..11a54ed3
--- /dev/null
+++ b/examples/android/hello-sdl/jni/Cogl
@@ -0,0 +1 @@
+../../../../
\ No newline at end of file
diff --git a/examples/android/hello-sdl/jni/src/Android.mk b/examples/android/hello-sdl/jni/src/Android.mk
new file mode 100644
index 00000000..8033438a
--- /dev/null
+++ b/examples/android/hello-sdl/jni/src/Android.mk
@@ -0,0 +1,19 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := main
+
+SDL_PATH := ../SDL
+
+#LOCAL_C_INCLUDES := $(LOCAL_PATH)/$(SDL_PATH)/include
+
+# Add your application source files here...
+LOCAL_SRC_FILES := $(SDL_PATH)/src/main/android/SDL_android_main.c \
+	cogl-sdl2-hello.c
+
+LOCAL_SHARED_LIBRARIES := Cogl SDL2
+
+LOCAL_LDLIBS := -lGLESv2 -llog
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/examples/android/hello-sdl/jni/src/Android_static.mk b/examples/android/hello-sdl/jni/src/Android_static.mk
new file mode 100644
index 00000000..faed669c
--- /dev/null
+++ b/examples/android/hello-sdl/jni/src/Android_static.mk
@@ -0,0 +1,12 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := main
+
+LOCAL_SRC_FILES := YourSourceHere.c
+
+LOCAL_STATIC_LIBRARIES := SDL2_static
+
+include $(BUILD_SHARED_LIBRARY)
+$(call import-module,SDL)LOCAL_PATH := $(call my-dir)
diff --git a/examples/android/hello-sdl/jni/src/cogl-sdl2-hello.c b/examples/android/hello-sdl/jni/src/cogl-sdl2-hello.c
new file mode 100644
index 00000000..01516a69
--- /dev/null
+++ b/examples/android/hello-sdl/jni/src/cogl-sdl2-hello.c
@@ -0,0 +1,171 @@
+#include <cogl/cogl.h>
+#include <cogl/cogl-sdl.h>
+#include <stdio.h>
+#include <SDL.h>
+
+/* This short example is just to demonstrate mixing SDL with Cogl as a
+   simple way to get portable support for events */
+
+typedef struct Data
+{
+  CoglPrimitive *triangle;
+  CoglPipeline *pipeline;
+  float center_x, center_y;
+  CoglFramebuffer *fb;
+  CoglBool quit;
+  CoglBool redraw_queued;
+  CoglBool ready_to_draw;
+} Data;
+
+static void
+redraw (Data *data)
+{
+  CoglFramebuffer *fb = data->fb;
+
+  cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
+
+  cogl_framebuffer_push_matrix (fb);
+  cogl_framebuffer_translate (fb, data->center_x, -data->center_y, 0.0f);
+
+  cogl_primitive_draw (data->triangle, fb, data->pipeline);
+  cogl_framebuffer_pop_matrix (fb);
+
+  cogl_onscreen_swap_buffers (COGL_ONSCREEN (fb));
+}
+
+static void
+dirty_cb (CoglOnscreen *onscreen,
+          const CoglOnscreenDirtyInfo *info,
+          void *user_data)
+{
+  Data *data = user_data;
+
+  data->redraw_queued = TRUE;
+}
+
+static void
+handle_event (Data *data, SDL_Event *event)
+{
+  switch (event->type)
+    {
+    case SDL_WINDOWEVENT:
+      switch (event->window.event)
+        {
+        case SDL_WINDOWEVENT_CLOSE:
+          data->quit = TRUE;
+          break;
+        }
+      break;
+
+    case SDL_MOUSEMOTION:
+      {
+        int width =
+          cogl_framebuffer_get_width (data->fb);
+        int height =
+          cogl_framebuffer_get_height (data->fb);
+
+        data->center_x = event->motion.x * 2.0f / width - 1.0f;
+        data->center_y = event->motion.y * 2.0f / height - 1.0f;
+
+        data->redraw_queued = TRUE;
+      }
+      break;
+
+    case SDL_QUIT:
+      data->quit = TRUE;
+      break;
+    }
+}
+
+static void
+frame_cb (CoglOnscreen *onscreen,
+          CoglFrameEvent event,
+          CoglFrameInfo *info,
+          void *user_data)
+{
+  Data *data = user_data;
+
+  if (event == COGL_FRAME_EVENT_SYNC)
+    data->ready_to_draw = TRUE;
+}
+
+int
+main (int argc, char **argv)
+{
+  CoglContext *ctx;
+  CoglOnscreen *onscreen;
+  CoglError *error = NULL;
+  CoglVertexP2C4 triangle_vertices[] = {
+    {0, 0.7, 0xff, 0x00, 0x00, 0xff},
+    {-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
+    {0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
+  };
+  Data data;
+  SDL_Event event;
+
+  SDL_VideoInit (NULL);
+
+  ctx = cogl_sdl_context_new (SDL_USEREVENT, &error);
+  if (!ctx)
+    {
+      fprintf (stderr, "Failed to create context: %s\n", error->message);
+      return 1;
+    }
+
+  onscreen = cogl_onscreen_new (ctx, 800, 600);
+  data.fb = onscreen;
+
+  cogl_onscreen_add_frame_callback (onscreen,
+                                    frame_cb,
+                                    &data,
+                                    NULL /* destroy callback */);
+  cogl_onscreen_add_dirty_callback (onscreen,
+                                    dirty_cb,
+                                    &data,
+                                    NULL /* destroy callback */);
+
+  data.center_x = 0.0f;
+  data.center_y = 0.0f;
+  data.quit = FALSE;
+
+  /* In SDL2, setting resizable only works before allocating the
+   * onscreen */
+  cogl_onscreen_set_resizable (onscreen, TRUE);
+
+  cogl_onscreen_show (onscreen);
+
+  data.triangle = cogl_primitive_new_p2c4 (ctx, COGL_VERTICES_MODE_TRIANGLES,
+                                           3, triangle_vertices);
+  data.pipeline = cogl_pipeline_new (ctx);
+
+  data.redraw_queued = FALSE;
+  data.ready_to_draw = TRUE;
+
+  while (!data.quit)
+    {
+      if (!SDL_PollEvent (&event))
+        {
+          if (data.redraw_queued && data.ready_to_draw)
+            {
+              redraw (&data);
+              data.redraw_queued = FALSE;
+              data.ready_to_draw = FALSE;
+              continue;
+            }
+
+          cogl_sdl_idle (ctx);
+          if (!SDL_WaitEvent (&event))
+            {
+              fprintf (stderr, "Error waiting for SDL events");
+              return 1;
+            }
+        }
+
+      handle_event (&data, &event);
+      cogl_sdl_handle_event (ctx, &event);
+    }
+
+  cogl_object_unref (ctx);
+
+  return 0;
+}
diff --git a/examples/android/hello-sdl/proguard-project.txt b/examples/android/hello-sdl/proguard-project.txt
new file mode 100644
index 00000000..f2fe1559
--- /dev/null
+++ b/examples/android/hello-sdl/proguard-project.txt
@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/examples/android/hello-sdl/project.properties b/examples/android/hello-sdl/project.properties
new file mode 100644
index 00000000..0840b4a0
--- /dev/null
+++ b/examples/android/hello-sdl/project.properties
@@ -0,0 +1,14 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-15
diff --git a/examples/android/hello-sdl/res/drawable-hdpi/ic_launcher.png b/examples/android/hello-sdl/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 00000000..d50bdaae
--- /dev/null
+++ b/examples/android/hello-sdl/res/drawable-hdpi/ic_launcher.png
diff --git a/examples/android/hello-sdl/res/drawable-mdpi/ic_launcher.png b/examples/android/hello-sdl/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 00000000..0a299eb3
--- /dev/null
+++ b/examples/android/hello-sdl/res/drawable-mdpi/ic_launcher.png
diff --git a/examples/android/hello-sdl/res/drawable-xhdpi/ic_launcher.png b/examples/android/hello-sdl/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..a336ad5c
--- /dev/null
+++ b/examples/android/hello-sdl/res/drawable-xhdpi/ic_launcher.png
diff --git a/examples/android/hello-sdl/res/drawable-xxhdpi/ic_launcher.png b/examples/android/hello-sdl/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..d423dac2
--- /dev/null
+++ b/examples/android/hello-sdl/res/drawable-xxhdpi/ic_launcher.png
diff --git a/examples/android/hello-sdl/res/layout/main.xml b/examples/android/hello-sdl/res/layout/main.xml
new file mode 100644
index 00000000..123c4b6e
--- /dev/null
+++ b/examples/android/hello-sdl/res/layout/main.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+<TextView  
+    android:layout_width="fill_parent" 
+    android:layout_height="wrap_content" 
+    android:text="Hello World, SDLActivity"
+    />
+</LinearLayout>
+
diff --git a/examples/android/hello-sdl/res/values/strings.xml b/examples/android/hello-sdl/res/values/strings.xml
new file mode 100644
index 00000000..aca49660
--- /dev/null
+++ b/examples/android/hello-sdl/res/values/strings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Cogl App</string>
+</resources>
diff --git a/examples/android/hello-sdl/src/org/libsdl/app/SDLActivity.java b/examples/android/hello-sdl/src/org/libsdl/app/SDLActivity.java
new file mode 100644
index 00000000..81420db2
--- /dev/null
+++ b/examples/android/hello-sdl/src/org/libsdl/app/SDLActivity.java
@@ -0,0 +1,1030 @@
+package org.libsdl.app;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import android.app.*;
+import android.content.*;
+import android.view.*;
+import android.view.inputmethod.BaseInputConnection;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputConnection;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.AbsoluteLayout;
+import android.os.*;
+import android.util.Log;
+import android.graphics.*;
+import android.media.*;
+import android.hardware.*;
+
+
+/**
+    SDL Activity
+*/
+public class SDLActivity extends Activity {
+    private static final String TAG = "SDL";
+
+    // Keep track of the paused state
+    public static boolean mIsPaused = false, mIsSurfaceReady = false, mHasFocus = true;
+    public static boolean mExitCalledFromJava;
+
+    // Main components
+    protected static SDLActivity mSingleton;
+    protected static SDLSurface mSurface;
+    protected static View mTextEdit;
+    protected static ViewGroup mLayout;
+    protected static SDLJoystickHandler mJoystickHandler;
+
+    // This is what SDL runs in. It invokes SDL_main(), eventually
+    protected static Thread mSDLThread;
+
+    // Audio
+    protected static Thread mAudioThread;
+    protected static AudioTrack mAudioTrack;
+
+    // Load the .so
+    static {
+        System.loadLibrary("SDL2");
+        //System.loadLibrary("SDL2_image");
+        //System.loadLibrary("SDL2_mixer");
+        //System.loadLibrary("SDL2_net");
+        //System.loadLibrary("SDL2_ttf");
+        System.loadLibrary("Cogl");
+        System.loadLibrary("main");
+    }
+
+    // Setup
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        //Log.v("SDL", "onCreate()");
+        super.onCreate(savedInstanceState);
+
+        // So we can call stuff from static callbacks
+        mSingleton = this;
+
+        // Set up the surface
+        mSurface = new SDLSurface(getApplication());
+
+        // Make sure this variable is initialized here!
+        mExitCalledFromJava = false;
+
+        if(Build.VERSION.SDK_INT >= 12) {
+            mJoystickHandler = new SDLJoystickHandler_API12();
+        }
+        else {
+            mJoystickHandler = new SDLJoystickHandler();
+        }
+
+        mLayout = new AbsoluteLayout(this);
+        mLayout.addView(mSurface);
+
+        setContentView(mLayout);
+    }
+
+    // Events
+    @Override
+    protected void onPause() {
+        Log.v("SDL", "onPause()");
+        super.onPause();
+        SDLActivity.handlePause();
+    }
+
+    @Override
+    protected void onResume() {
+        Log.v("SDL", "onResume()");
+        super.onResume();
+        SDLActivity.handleResume();
+    }
+
+
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        Log.v("SDL", "onWindowFocusChanged(): " + hasFocus);
+
+        SDLActivity.mHasFocus = hasFocus;
+        if (hasFocus) {
+            SDLActivity.handleResume();
+        }
+    }
+
+    @Override
+    public void onLowMemory() {
+        Log.v("SDL", "onLowMemory()");
+        super.onLowMemory();
+        SDLActivity.nativeLowMemory();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        Log.v("SDL", "onDestroy()");
+        // Send a quit message to the application
+        SDLActivity.mExitCalledFromJava = true;
+        SDLActivity.nativeQuit();
+
+        // Now wait for the SDL thread to quit
+        if (SDLActivity.mSDLThread != null) {
+            try {
+                SDLActivity.mSDLThread.join();
+            } catch(Exception e) {
+                Log.v("SDL", "Problem stopping thread: " + e);
+            }
+            SDLActivity.mSDLThread = null;
+
+            //Log.v("SDL", "Finished waiting for SDL thread");
+        }
+    }
+
+    @Override
+    public boolean dispatchKeyEvent(KeyEvent event) {
+        int keyCode = event.getKeyCode();
+        // Ignore certain special keys so they're handled by Android
+        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ||
+            keyCode == KeyEvent.KEYCODE_VOLUME_UP ||
+            keyCode == KeyEvent.KEYCODE_CAMERA ||
+            keyCode == 168 || /* API 11: KeyEvent.KEYCODE_ZOOM_IN */
+            keyCode == 169 /* API 11: KeyEvent.KEYCODE_ZOOM_OUT */
+            ) {
+            return false;
+        }
+        return super.dispatchKeyEvent(event);
+    }
+
+    /** Called by onPause or surfaceDestroyed. Even if surfaceDestroyed
+     *  is the first to be called, mIsSurfaceReady should still be set
+     *  to 'true' during the call to onPause (in a usual scenario).
+     */
+    public static void handlePause() {
+        if (!SDLActivity.mIsPaused && SDLActivity.mIsSurfaceReady) {
+            SDLActivity.mIsPaused = true;
+            SDLActivity.nativePause();
+            mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, false);
+        }
+    }
+
+    /** Called by onResume or surfaceCreated. An actual resume should be done only when the surface is ready.
+     * Note: Some Android variants may send multiple surfaceChanged events, so we don't need to resume
+     * every time we get one of those events, only if it comes after surfaceDestroyed
+     */
+    public static void handleResume() {
+        if (SDLActivity.mIsPaused && SDLActivity.mIsSurfaceReady && SDLActivity.mHasFocus) {
+            SDLActivity.mIsPaused = false;
+            SDLActivity.nativeResume();
+            mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
+        }
+    }
+
+    /* The native thread has finished */
+    public static void handleNativeExit() {
+        SDLActivity.mSDLThread = null;
+        mSingleton.finish();
+    }
+
+
+    // Messages from the SDLMain thread
+    static final int COMMAND_CHANGE_TITLE = 1;
+    static final int COMMAND_UNUSED = 2;
+    static final int COMMAND_TEXTEDIT_HIDE = 3;
+
+    protected static final int COMMAND_USER = 0x8000;
+
+    /**
+     * This method is called by SDL if SDL did not handle a message itself.
+     * This happens if a received message contains an unsupported command.
+     * Method can be overwritten to handle Messages in a different class.
+     * @param command the command of the message.
+     * @param param the parameter of the message. May be null.
+     * @return if the message was handled in overridden method.
+     */
+    protected boolean onUnhandledMessage(int command, Object param) {
+        return false;
+    }
+
+    /**
+     * A Handler class for Messages from native SDL applications.
+     * It uses current Activities as target (e.g. for the title).
+     * static to prevent implicit references to enclosing object.
+     */
+    protected static class SDLCommandHandler extends Handler {
+        @Override
+        public void handleMessage(Message msg) {
+            Context context = getContext();
+            if (context == null) {
+                Log.e(TAG, "error handling message, getContext() returned null");
+                return;
+            }
+            switch (msg.arg1) {
+            case COMMAND_CHANGE_TITLE:
+                if (context instanceof Activity) {
+                    ((Activity) context).setTitle((String)msg.obj);
+                } else {
+                    Log.e(TAG, "error handling message, getContext() returned no Activity");
+                }
+                break;
+            case COMMAND_TEXTEDIT_HIDE:
+                if (mTextEdit != null) {
+                    mTextEdit.setVisibility(View.GONE);
+
+                    InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
+                    imm.hideSoftInputFromWindow(mTextEdit.getWindowToken(), 0);
+                }
+                break;
+
+            default:
+                if ((context instanceof SDLActivity) && !((SDLActivity) context).onUnhandledMessage(msg.arg1, msg.obj)) {
+                    Log.e(TAG, "error handling message, command is " + msg.arg1);
+                }
+            }
+        }
+    }
+
+    // Handler for the messages
+    Handler commandHandler = new SDLCommandHandler();
+
+    // Send a message from the SDLMain thread
+    boolean sendCommand(int command, Object data) {
+        Message msg = commandHandler.obtainMessage();
+        msg.arg1 = command;
+        msg.obj = data;
+        return commandHandler.sendMessage(msg);
+    }
+
+    // C functions we call
+    public static native void nativeInit();
+    public static native void nativeLowMemory();
+    public static native void nativeQuit();
+    public static native void nativePause();
+    public static native void nativeResume();
+    public static native void onNativeResize(int x, int y, int format);
+    public static native int onNativePadDown(int device_id, int keycode);
+    public static native int onNativePadUp(int device_id, int keycode);
+    public static native void onNativeJoy(int device_id, int axis,
+                                          float value);
+    public static native void onNativeKeyDown(int keycode);
+    public static native void onNativeKeyUp(int keycode);
+    public static native void onNativeKeyboardFocusLost();
+    public static native void onNativeTouch(int touchDevId, int pointerFingerId,
+                                            int action, float x,
+                                            float y, float p);
+    public static native void onNativeAccel(float x, float y, float z);
+    public static native void onNativeSurfaceChanged();
+    public static native void onNativeSurfaceDestroyed();
+    public static native void nativeFlipBuffers();
+    public static native int nativeAddJoystick(int device_id, String name,
+                                               int is_accelerometer, int nbuttons,
+                                               int naxes, int nhats, int nballs);
+    public static native int nativeRemoveJoystick(int device_id);
+
+    public static void flipBuffers() {
+        SDLActivity.nativeFlipBuffers();
+    }
+
+    public static boolean setActivityTitle(String title) {
+        // Called from SDLMain() thread and can't directly affect the view
+        return mSingleton.sendCommand(COMMAND_CHANGE_TITLE, title);
+    }
+
+    public static boolean sendMessage(int command, int param) {
+        return mSingleton.sendCommand(command, Integer.valueOf(param));
+    }
+
+    public static Context getContext() {
+        return mSingleton;
+    }
+
+    /**
+     * @return result of getSystemService(name) but executed on UI thread.
+     */
+    public Object getSystemServiceFromUiThread(final String name) {
+        final Object lock = new Object();
+        final Object[] results = new Object[2]; // array for writable variables
+        synchronized (lock) {
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    synchronized (lock) {
+                        results[0] = getSystemService(name);
+                        results[1] = Boolean.TRUE;
+                        lock.notify();
+                    }
+                }
+            });
+            if (results[1] == null) {
+                try {
+                    lock.wait();
+                } catch (InterruptedException ex) {
+                    ex.printStackTrace();
+                }
+            }
+        }
+        return results[0];
+    }
+
+    static class ShowTextInputTask implements Runnable {
+        /*
+         * This is used to regulate the pan&scan method to have some offset from
+         * the bottom edge of the input region and the top edge of an input
+         * method (soft keyboard)
+         */
+        static final int HEIGHT_PADDING = 15;
+
+        public int x, y, w, h;
+
+        public ShowTextInputTask(int x, int y, int w, int h) {
+            this.x = x;
+            this.y = y;
+            this.w = w;
+            this.h = h;
+        }
+
+        @Override
+        public void run() {
+            AbsoluteLayout.LayoutParams params = new AbsoluteLayout.LayoutParams(
+                    w, h + HEIGHT_PADDING, x, y);
+
+            if (mTextEdit == null) {
+                mTextEdit = new DummyEdit(getContext());
+
+                mLayout.addView(mTextEdit, params);
+            } else {
+                mTextEdit.setLayoutParams(params);
+            }
+
+            mTextEdit.setVisibility(View.VISIBLE);
+            mTextEdit.requestFocus();
+
+            InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.showSoftInput(mTextEdit, 0);
+        }
+    }
+
+    public static boolean showTextInput(int x, int y, int w, int h) {
+        // Transfer the task to the main thread as a Runnable
+        return mSingleton.commandHandler.post(new ShowTextInputTask(x, y, w, h));
+    }
+
+    public static Surface getNativeSurface() {
+        return SDLActivity.mSurface.getNativeSurface();
+    }
+
+    // Audio
+    public static int audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
+        int channelConfig = isStereo ? AudioFormat.CHANNEL_CONFIGURATION_STEREO : AudioFormat.CHANNEL_CONFIGURATION_MONO;
+        int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
+        int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);
+
+        Log.v("SDL", "SDL audio: wanted " + (isStereo ? "stereo" : "mono") + " " + (is16Bit ? "16-bit" : "8-bit") + " " + (sampleRate / 1000f) + "kHz, " + desiredFrames + " frames buffer");
+
+        // Let the user pick a larger buffer if they really want -- but ye
+        // gods they probably shouldn't, the minimums are horrifyingly high
+        // latency already
+        desiredFrames = Math.max(desiredFrames, (AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat) + frameSize - 1) / frameSize);
+
+        if (mAudioTrack == null) {
+            mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
+                    channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
+
+            // Instantiating AudioTrack can "succeed" without an exception and the track may still be invalid
+            // Ref: https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/media/java/android/media/AudioTrack.java
+            // Ref: http://developer.android.com/reference/android/media/AudioTrack.html#getState()
+
+            if (mAudioTrack.getState() != AudioTrack.STATE_INITIALIZED) {
+                Log.e("SDL", "Failed during initialization of Audio Track");
+                mAudioTrack = null;
+                return -1;
+            }
+
+            mAudioTrack.play();
+        }
+
+        Log.v("SDL", "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " " + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit") + " " + (mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");
+
+        return 0;
+    }
+
+    public static void audioWriteShortBuffer(short[] buffer) {
+        for (int i = 0; i < buffer.length; ) {
+            int result = mAudioTrack.write(buffer, i, buffer.length - i);
+            if (result > 0) {
+                i += result;
+            } else if (result == 0) {
+                try {
+                    Thread.sleep(1);
+                } catch(InterruptedException e) {
+                    // Nom nom
+                }
+            } else {
+                Log.w("SDL", "SDL audio: error return from write(short)");
+                return;
+            }
+        }
+    }
+
+    public static void audioWriteByteBuffer(byte[] buffer) {
+        for (int i = 0; i < buffer.length; ) {
+            int result = mAudioTrack.write(buffer, i, buffer.length - i);
+            if (result > 0) {
+                i += result;
+            } else if (result == 0) {
+                try {
+                    Thread.sleep(1);
+                } catch(InterruptedException e) {
+                    // Nom nom
+                }
+            } else {
+                Log.w("SDL", "SDL audio: error return from write(byte)");
+                return;
+            }
+        }
+    }
+
+    public static void audioQuit() {
+        if (mAudioTrack != null) {
+            mAudioTrack.stop();
+            mAudioTrack = null;
+        }
+    }
+
+    // Input
+
+    /**
+     * @return an array which may be empty but is never null.
+     */
+    public static int[] inputGetInputDeviceIds(int sources) {
+        int[] ids = InputDevice.getDeviceIds();
+        int[] filtered = new int[ids.length];
+        int used = 0;
+        for (int i = 0; i < ids.length; ++i) {
+            InputDevice device = InputDevice.getDevice(ids[i]);
+            if ((device != null) && ((device.getSources() & sources) != 0)) {
+                filtered[used++] = device.getId();
+            }
+        }
+        return Arrays.copyOf(filtered, used);
+    }
+
+    // Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance
+    public static boolean handleJoystickMotionEvent(MotionEvent event) {
+        return mJoystickHandler.handleMotionEvent(event);
+    }
+
+    public static void pollInputDevices() {
+        if (SDLActivity.mSDLThread != null) {
+            mJoystickHandler.pollInputDevices();
+        }
+    }
+
+}
+
+/**
+    Simple nativeInit() runnable
+*/
+class SDLMain implements Runnable {
+    @Override
+    public void run() {
+        // Runs SDL_main()
+        SDLActivity.nativeInit();
+
+        //Log.v("SDL", "SDL thread terminated");
+    }
+}
+
+
+/**
+    SDLSurface. This is what we draw on, so we need to know when it's created
+    in order to do anything useful.
+
+    Because of this, that's where we set up the SDL thread
+*/
+class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
+    View.OnKeyListener, View.OnTouchListener, SensorEventListener  {
+
+    // Sensors
+    protected static SensorManager mSensorManager;
+    protected static Display mDisplay;
+
+    // Keep track of the surface size to normalize touch events
+    protected static float mWidth, mHeight;
+
+    // Startup
+    public SDLSurface(Context context) {
+        super(context);
+        getHolder().addCallback(this);
+
+        setFocusable(true);
+        setFocusableInTouchMode(true);
+        requestFocus();
+        setOnKeyListener(this);
+        setOnTouchListener(this);
+
+        mDisplay = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
+        mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
+
+        if(Build.VERSION.SDK_INT >= 12) {
+            setOnGenericMotionListener(new SDLGenericMotionListener_API12());
+        }
+
+        // Some arbitrary defaults to avoid a potential division by zero
+        mWidth = 1.0f;
+        mHeight = 1.0f;
+    }
+
+    public Surface getNativeSurface() {
+        return getHolder().getSurface();
+    }
+
+    // Called when we have a valid drawing surface
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+        Log.v("SDL", "surfaceCreated()");
+        holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
+    }
+
+    // Called when we lose the surface
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        Log.v("SDL", "surfaceDestroyed()");
+        // Call this *before* setting mIsSurfaceReady to 'false'
+        SDLActivity.handlePause();
+        SDLActivity.mIsSurfaceReady = false;
+        SDLActivity.onNativeSurfaceDestroyed();
+    }
+
+    // Called when the surface is resized
+    @Override
+    public void surfaceChanged(SurfaceHolder holder,
+                               int format, int width, int height) {
+        Log.v("SDL", "surfaceChanged()");
+
+        int sdlFormat = 0x15151002; // SDL_PIXELFORMAT_RGB565 by default
+        switch (format) {
+        case PixelFormat.A_8:
+            Log.v("SDL", "pixel format A_8");
+            break;
+        case PixelFormat.LA_88:
+            Log.v("SDL", "pixel format LA_88");
+            break;
+        case PixelFormat.L_8:
+            Log.v("SDL", "pixel format L_8");
+            break;
+        case PixelFormat.RGBA_4444:
+            Log.v("SDL", "pixel format RGBA_4444");
+            sdlFormat = 0x15421002; // SDL_PIXELFORMAT_RGBA4444
+            break;
+        case PixelFormat.RGBA_5551:
+            Log.v("SDL", "pixel format RGBA_5551");
+            sdlFormat = 0x15441002; // SDL_PIXELFORMAT_RGBA5551
+            break;
+        case PixelFormat.RGBA_8888:
+            Log.v("SDL", "pixel format RGBA_8888");
+            sdlFormat = 0x16462004; // SDL_PIXELFORMAT_RGBA8888
+            break;
+        case PixelFormat.RGBX_8888:
+            Log.v("SDL", "pixel format RGBX_8888");
+            sdlFormat = 0x16261804; // SDL_PIXELFORMAT_RGBX8888
+            break;
+        case PixelFormat.RGB_332:
+            Log.v("SDL", "pixel format RGB_332");
+            sdlFormat = 0x14110801; // SDL_PIXELFORMAT_RGB332
+            break;
+        case PixelFormat.RGB_565:
+            Log.v("SDL", "pixel format RGB_565");
+            sdlFormat = 0x15151002; // SDL_PIXELFORMAT_RGB565
+            break;
+        case PixelFormat.RGB_888:
+            Log.v("SDL", "pixel format RGB_888");
+            // Not sure this is right, maybe SDL_PIXELFORMAT_RGB24 instead?
+            sdlFormat = 0x16161804; // SDL_PIXELFORMAT_RGB888
+            break;
+        default:
+            Log.v("SDL", "pixel format unknown " + format);
+            break;
+        }
+
+        mWidth = width;
+        mHeight = height;
+        SDLActivity.onNativeResize(width, height, sdlFormat);
+        Log.v("SDL", "Window size:" + width + "x"+height);
+
+        // Set mIsSurfaceReady to 'true' *before* making a call to handleResume
+        SDLActivity.mIsSurfaceReady = true;
+        SDLActivity.onNativeSurfaceChanged();
+
+
+        if (SDLActivity.mSDLThread == null) {
+            // This is the entry point to the C app.
+            // Start up the C app thread and enable sensor input for the first time
+
+            SDLActivity.mSDLThread = new Thread(new SDLMain(), "SDLThread");
+            enableSensor(Sensor.TYPE_ACCELEROMETER, true);
+            SDLActivity.mSDLThread.start();
+
+            // Set up a listener thread to catch when the native thread ends
+            new Thread(new Runnable(){
+                @Override
+                public void run(){
+                    try {
+                        SDLActivity.mSDLThread.join();
+                    }
+                    catch(Exception e){}
+                    finally{
+                        // Native thread has finished
+                        if (! SDLActivity.mExitCalledFromJava) {
+                            SDLActivity.handleNativeExit();
+                        }
+                    }
+                }
+            }).start();
+        }
+    }
+
+    // unused
+    @Override
+    public void onDraw(Canvas canvas) {}
+
+
+    // Key events
+    @Override
+    public boolean onKey(View  v, int keyCode, KeyEvent event) {
+        // Dispatch the different events depending on where they come from
+        // Some SOURCE_DPAD or SOURCE_GAMEPAD are also SOURCE_KEYBOARD
+        // So, we try to process them as DPAD or GAMEPAD events first, if that fails we try them as KEYBOARD
+
+        if ( (event.getSource() & 0x00000401) != 0 || /* API 12: SOURCE_GAMEPAD */
+                   (event.getSource() & InputDevice.SOURCE_DPAD) != 0 ) {
+            if (event.getAction() == KeyEvent.ACTION_DOWN) {
+                if (SDLActivity.onNativePadDown(event.getDeviceId(), keyCode) == 0) {
+                    return true;
+                }
+            } else if (event.getAction() == KeyEvent.ACTION_UP) {
+                if (SDLActivity.onNativePadUp(event.getDeviceId(), keyCode) == 0) {
+                    return true;
+                }
+            }
+        }
+
+        if( (event.getSource() & InputDevice.SOURCE_KEYBOARD) != 0) {
+            if (event.getAction() == KeyEvent.ACTION_DOWN) {
+                //Log.v("SDL", "key down: " + keyCode);
+                SDLActivity.onNativeKeyDown(keyCode);
+                return true;
+            }
+            else if (event.getAction() == KeyEvent.ACTION_UP) {
+                //Log.v("SDL", "key up: " + keyCode);
+                SDLActivity.onNativeKeyUp(keyCode);
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    // Touch events
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        /* Ref: http://developer.android.com/training/gestures/multi.html */
+        final int touchDevId = event.getDeviceId();
+        final int pointerCount = event.getPointerCount();
+        int action = event.getActionMasked();
+        int pointerFingerId;
+        int i = -1;
+        float x,y,p;
+
+        switch(action) {
+            case MotionEvent.ACTION_MOVE:
+                for (i = 0; i < pointerCount; i++) {
+                    pointerFingerId = event.getPointerId(i);
+                    x = event.getX(i) / mWidth;
+                    y = event.getY(i) / mHeight;
+                    p = event.getPressure(i);
+                    SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
+                }
+                break;
+
+            case MotionEvent.ACTION_UP:
+            case MotionEvent.ACTION_DOWN:
+                // Primary pointer up/down, the index is always zero
+                i = 0;
+            case MotionEvent.ACTION_POINTER_UP:
+            case MotionEvent.ACTION_POINTER_DOWN:
+                // Non primary pointer up/down
+                if (i == -1) {
+                    i = event.getActionIndex();
+                }
+
+                pointerFingerId = event.getPointerId(i);
+                x = event.getX(i) / mWidth;
+                y = event.getY(i) / mHeight;
+                p = event.getPressure(i);
+                SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
+                break;
+
+            default:
+                break;
+        }
+
+        return true;
+   }
+
+    // Sensor events
+    public void enableSensor(int sensortype, boolean enabled) {
+        // TODO: This uses getDefaultSensor - what if we have >1 accels?
+        if (enabled) {
+            mSensorManager.registerListener(this,
+                            mSensorManager.getDefaultSensor(sensortype),
+                            SensorManager.SENSOR_DELAY_GAME, null);
+        } else {
+            mSensorManager.unregisterListener(this,
+                            mSensorManager.getDefaultSensor(sensortype));
+        }
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        // TODO
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
+            float x, y;
+            switch (mDisplay.getRotation()) {
+                case Surface.ROTATION_90:
+                    x = -event.values[1];
+                    y = event.values[0];
+                    break;
+                case Surface.ROTATION_270:
+                    x = event.values[1];
+                    y = -event.values[0];
+                    break;
+                case Surface.ROTATION_180:
+                    x = -event.values[1];
+                    y = -event.values[0];
+                    break;
+                default:
+                    x = event.values[0];
+                    y = event.values[1];
+                    break;
+            }
+            SDLActivity.onNativeAccel(-x / SensorManager.GRAVITY_EARTH,
+                                      y / SensorManager.GRAVITY_EARTH,
+                                      event.values[2] / SensorManager.GRAVITY_EARTH - 1);
+        }
+    }
+}
+
+/* This is a fake invisible editor view that receives the input and defines the
+ * pan&scan region
+ */
+class DummyEdit extends View implements View.OnKeyListener {
+    InputConnection ic;
+
+    public DummyEdit(Context context) {
+        super(context);
+        setFocusableInTouchMode(true);
+        setFocusable(true);
+        setOnKeyListener(this);
+    }
+
+    @Override
+    public boolean onCheckIsTextEditor() {
+        return true;
+    }
+
+    @Override
+    public boolean onKey(View v, int keyCode, KeyEvent event) {
+
+        // This handles the hardware keyboard input
+        if (event.isPrintingKey()) {
+            if (event.getAction() == KeyEvent.ACTION_DOWN) {
+                ic.commitText(String.valueOf((char) event.getUnicodeChar()), 1);
+            }
+            return true;
+        }
+
+        if (event.getAction() == KeyEvent.ACTION_DOWN) {
+            SDLActivity.onNativeKeyDown(keyCode);
+            return true;
+        } else if (event.getAction() == KeyEvent.ACTION_UP) {
+            SDLActivity.onNativeKeyUp(keyCode);
+            return true;
+        }
+
+        return false;
+    }
+
+    //
+    @Override
+    public boolean onKeyPreIme (int keyCode, KeyEvent event) {
+        // As seen on StackOverflow: http://stackoverflow.com/questions/7634346/keyboard-hide-event
+        // FIXME: Discussion at http://bugzilla.libsdl.org/show_bug.cgi?id=1639
+        // FIXME: This is not a 100% effective solution to the problem of detecting if the keyboard is showing or not
+        // FIXME: A more effective solution would be to change our Layout from AbsoluteLayout to Relative or Linear
+        // FIXME: And determine the keyboard presence doing this: http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android
+        // FIXME: An even more effective way would be if Android provided this out of the box, but where would the fun be in that :)
+        if (event.getAction()==KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
+            if (SDLActivity.mTextEdit != null && SDLActivity.mTextEdit.getVisibility() == View.VISIBLE) {
+                SDLActivity.onNativeKeyboardFocusLost();
+            }
+        }
+        return super.onKeyPreIme(keyCode, event);
+    }
+
+    @Override
+    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
+        ic = new SDLInputConnection(this, true);
+
+        outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
+                | 33554432 /* API 11: EditorInfo.IME_FLAG_NO_FULLSCREEN */;
+
+        return ic;
+    }
+}
+
+class SDLInputConnection extends BaseInputConnection {
+
+    public SDLInputConnection(View targetView, boolean fullEditor) {
+        super(targetView, fullEditor);
+
+    }
+
+    @Override
+    public boolean sendKeyEvent(KeyEvent event) {
+
+        /*
+         * This handles the keycodes from soft keyboard (and IME-translated
+         * input from hardkeyboard)
+         */
+        int keyCode = event.getKeyCode();
+        if (event.getAction() == KeyEvent.ACTION_DOWN) {
+            if (event.isPrintingKey()) {
+                commitText(String.valueOf((char) event.getUnicodeChar()), 1);
+            }
+            SDLActivity.onNativeKeyDown(keyCode);
+            return true;
+        } else if (event.getAction() == KeyEvent.ACTION_UP) {
+
+            SDLActivity.onNativeKeyUp(keyCode);
+            return true;
+        }
+        return super.sendKeyEvent(event);
+    }
+
+    @Override
+    public boolean commitText(CharSequence text, int newCursorPosition) {
+
+        nativeCommitText(text.toString(), newCursorPosition);
+
+        return super.commitText(text, newCursorPosition);
+    }
+
+    @Override
+    public boolean setComposingText(CharSequence text, int newCursorPosition) {
+
+        nativeSetComposingText(text.toString(), newCursorPosition);
+
+        return super.setComposingText(text, newCursorPosition);
+    }
+
+    public native void nativeCommitText(String text, int newCursorPosition);
+
+    public native void nativeSetComposingText(String text, int newCursorPosition);
+
+    @Override
+    public boolean deleteSurroundingText(int beforeLength, int afterLength) {
+        // Workaround to capture backspace key. Ref: http://stackoverflow.com/questions/14560344/android-backspace-in-webview-baseinputconnection
+        if (beforeLength == 1 && afterLength == 0) {
+            // backspace
+            return super.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL))
+                && super.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_DEL));
+        }
+
+        return super.deleteSurroundingText(beforeLength, afterLength);
+    }
+}
+
+/* A null joystick handler for API level < 12 devices (the accelerometer is handled separately) */
+class SDLJoystickHandler {
+
+    public boolean handleMotionEvent(MotionEvent event) {
+        return false;
+    }
+
+    public void pollInputDevices() {
+    }
+}
+
+/* Actual joystick functionality available for API >= 12 devices */
+class SDLJoystickHandler_API12 extends SDLJoystickHandler {
+
+    class SDLJoystick {
+        public int device_id;
+        public String name;
+        public ArrayList<InputDevice.MotionRange> axes;
+    }
+
+    private ArrayList<SDLJoystick> mJoysticks;
+
+    public SDLJoystickHandler_API12() {
+
+        mJoysticks = new ArrayList<SDLJoystick>();
+    }
+
+    @Override
+    public void pollInputDevices() {
+        int[] deviceIds = InputDevice.getDeviceIds();
+        // It helps processing the device ids in reverse order
+        // For example, in the case of the XBox 360 wireless dongle,
+        // so the first controller seen by SDL matches what the receiver
+        // considers to be the first controller
+
+        for(int i=deviceIds.length-1; i>-1; i--) {
+            SDLJoystick joystick = getJoystick(deviceIds[i]);
+            if (joystick == null) {
+                joystick = new SDLJoystick();
+                InputDevice joystickDevice = InputDevice.getDevice(deviceIds[i]);
+                if( (joystickDevice.getSources() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
+                    joystick.device_id = deviceIds[i];
+                    joystick.name = joystickDevice.getName();
+                    joystick.axes = new ArrayList<InputDevice.MotionRange>();
+
+                    for (InputDevice.MotionRange range : joystickDevice.getMotionRanges()) {
+                         if ( (range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
+                            joystick.axes.add(range);
+                         }
+                    }
+
+                    mJoysticks.add(joystick);
+                    SDLActivity.nativeAddJoystick(joystick.device_id, joystick.name, 0, -1, joystick.axes.size(), 0, 0);
+                }
+            }
+        }
+
+        /* Check removed devices */
+        ArrayList<Integer> removedDevices = new ArrayList<Integer>();
+        for(int i=0; i < mJoysticks.size(); i++) {
+            int device_id = mJoysticks.get(i).device_id;
+            int j;
+            for (j=0; j < deviceIds.length; j++) {
+                if (device_id == deviceIds[j]) break;
+            }
+            if (j == deviceIds.length) {
+                removedDevices.add(device_id);
+            }
+        }
+
+        for(int i=0; i < removedDevices.size(); i++) {
+            int device_id = removedDevices.get(i);
+            SDLActivity.nativeRemoveJoystick(device_id);
+            for (int j=0; j < mJoysticks.size(); j++) {
+                if (mJoysticks.get(j).device_id == device_id) {
+                    mJoysticks.remove(j);
+                    break;
+                }
+            }
+        }
+    }
+
+    protected SDLJoystick getJoystick(int device_id) {
+        for(int i=0; i < mJoysticks.size(); i++) {
+            if (mJoysticks.get(i).device_id == device_id) {
+                return mJoysticks.get(i);
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public boolean handleMotionEvent(MotionEvent event) {
+        if ( (event.getSource() & InputDevice.SOURCE_JOYSTICK) != 0) {
+            int actionPointerIndex = event.getActionIndex();
+            int action = event.getActionMasked();
+            switch(action) {
+                case MotionEvent.ACTION_MOVE:
+                    SDLJoystick joystick = getJoystick(event.getDeviceId());
+                    if ( joystick != null ) {
+                        for (int i = 0; i < joystick.axes.size(); i++) {
+                            InputDevice.MotionRange range = joystick.axes.get(i);
+                            /* Normalize the value to -1...1 */
+                            float value = ( event.getAxisValue( range.getAxis(), actionPointerIndex) - range.getMin() ) / range.getRange() * 2.0f - 1.0f;
+                            SDLActivity.onNativeJoy(joystick.device_id, i, value );
+                        }
+                    }
+                    break;
+                default:
+                    break;
+            }
+        }
+        return true;
+    }
+}
+
+class SDLGenericMotionListener_API12 implements View.OnGenericMotionListener {
+    // Generic Motion (mouse hover, joystick...) events go here
+    // We only have joysticks yet
+    @Override
+    public boolean onGenericMotion(View v, MotionEvent event) {
+        return SDLActivity.handleJoystickMotionEvent(event);
+    }
+}