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/*
* Copyright (C) 2010 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.
*/
#define LOG_TAG "NativeActivity"
#include <utils/Log.h>
#include "JNIHelp.h"
#include <android_runtime/AndroidRuntime.h>
#include <android/native_activity.h>
#include <dlfcn.h>
namespace android
{
struct NativeCode {
NativeCode(void* _dlhandle, android_activity_create_t* _createFunc) {
memset(&activity, sizeof(activity), 0);
memset(&callbacks, sizeof(callbacks), 0);
dlhandle = _dlhandle;
createActivityFunc = _createFunc;
surface = NULL;
}
~NativeCode() {
if (callbacks.onDestroy != NULL) {
callbacks.onDestroy(&activity);
}
if (dlhandle != NULL) {
dlclose(dlhandle);
}
}
void setSurface(jobject _surface) {
if (surface != NULL) {
activity.env->DeleteGlobalRef(surface);
}
if (_surface != NULL) {
surface = activity.env->NewGlobalRef(_surface);
} else {
surface = NULL;
}
}
android_activity_t activity;
android_activity_callbacks_t callbacks;
void* dlhandle;
android_activity_create_t* createActivityFunc;
jobject surface;
};
static jint
loadNativeCode_native(JNIEnv* env, jobject clazz, jstring path)
{
const char* pathStr = env->GetStringUTFChars(path, NULL);
NativeCode* code = NULL;
void* handle = dlopen(pathStr, RTLD_LAZY);
env->ReleaseStringUTFChars(path, pathStr);
if (handle != NULL) {
code = new NativeCode(handle, (android_activity_create_t*)
dlsym(handle, "android_onCreateActivity"));
if (code->createActivityFunc == NULL) {
LOGW("android_onCreateActivity not found");
delete code;
return 0;
}
code->activity.callbacks = &code->callbacks;
code->activity.env = env;
code->activity.clazz = clazz;
code->createActivityFunc(&code->activity, NULL, 0);
}
return (jint)code;
}
static void
unloadNativeCode_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
delete code;
}
}
static void
onStart_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onStart != NULL) {
code->callbacks.onStart(&code->activity);
}
}
}
static void
onResume_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onResume != NULL) {
code->callbacks.onResume(&code->activity);
}
}
}
static void
onSaveInstanceState_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onSaveInstanceState != NULL) {
size_t len = 0;
code->callbacks.onSaveInstanceState(&code->activity, &len);
}
}
}
static void
onPause_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onPause != NULL) {
code->callbacks.onPause(&code->activity);
}
}
}
static void
onStop_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onStop != NULL) {
code->callbacks.onStop(&code->activity);
}
}
}
static void
onLowMemory_native(JNIEnv* env, jobject clazz, jint handle)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onLowMemory != NULL) {
code->callbacks.onLowMemory(&code->activity);
}
}
}
static void
onWindowFocusChanged_native(JNIEnv* env, jobject clazz, jint handle, jboolean focused)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->callbacks.onWindowFocusChanged != NULL) {
code->callbacks.onWindowFocusChanged(&code->activity, focused ? 1 : 0);
}
}
}
static void
onSurfaceCreated_native(JNIEnv* env, jobject clazz, jint handle, jobject surface)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
code->setSurface(surface);
if (code->callbacks.onSurfaceCreated != NULL) {
code->callbacks.onSurfaceCreated(&code->activity,
(android_surface_t*)code->surface);
}
}
}
static void
onSurfaceChanged_native(JNIEnv* env, jobject clazz, jint handle, jobject surface,
jint format, jint width, jint height)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->surface != NULL && code->callbacks.onSurfaceChanged != NULL) {
code->callbacks.onSurfaceChanged(&code->activity,
(android_surface_t*)code->surface, format, width, height);
}
}
}
static void
onSurfaceDestroyed_native(JNIEnv* env, jobject clazz, jint handle, jobject surface)
{
if (handle != 0) {
NativeCode* code = (NativeCode*)handle;
if (code->surface != NULL && code->callbacks.onSurfaceDestroyed != NULL) {
code->callbacks.onSurfaceDestroyed(&code->activity,
(android_surface_t*)code->surface);
}
code->setSurface(NULL);
}
}
static const JNINativeMethod g_methods[] = {
{ "loadNativeCode", "(Ljava/lang/String;)I", (void*)loadNativeCode_native },
{ "unloadNativeCode", "(I)V", (void*)unloadNativeCode_native },
{ "onStartNative", "(I)V", (void*)onStart_native },
{ "onResumeNative", "(I)V", (void*)onResume_native },
{ "onSaveInstanceStateNative", "(I)V", (void*)onSaveInstanceState_native },
{ "onPauseNative", "(I)V", (void*)onPause_native },
{ "onStopNative", "(I)V", (void*)onStop_native },
{ "onLowMemoryNative", "(I)V", (void*)onLowMemory_native },
{ "onWindowFocusChangedNative", "(IZ)V", (void*)onWindowFocusChanged_native },
{ "onSurfaceCreatedNative", "(ILandroid/view/SurfaceHolder;)V", (void*)onSurfaceCreated_native },
{ "onSurfaceChangedNative", "(ILandroid/view/SurfaceHolder;III)V", (void*)onSurfaceChanged_native },
{ "onSurfaceDestroyedNative", "(ILandroid/view/SurfaceHolder;)V", (void*)onSurfaceDestroyed_native },
};
static const char* const kNativeActivityPathName = "android/app/NativeActivity";
int register_android_app_NativeActivity(JNIEnv* env)
{
//LOGD("register_android_app_NativeActivity");
jclass clazz;
clazz = env->FindClass(kNativeActivityPathName);
LOG_FATAL_IF(clazz == NULL, "Unable to find class android.app.NativeActivity");
return AndroidRuntime::registerNativeMethods(
env, kNativeActivityPathName,
g_methods, NELEM(g_methods));
}
}
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