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/**
* Copyright 2014 Dolphin Emulator Project
* Licensed under GPLv2+
* Refer to the license.txt file included.
*/
package org.yuzu.yuzu_emu.utils;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Environment;
import android.preference.PreferenceManager;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import org.yuzu.yuzu_emu.NativeLibrary;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* A service that spawns its own thread in order to copy several binary and shader files
* from the yuzu APK to the external file system.
*/
public final class DirectoryInitialization {
public static final String BROADCAST_ACTION = "org.yuzu.yuzu_emu.BROADCAST";
public static final String EXTRA_STATE = "directoryState";
private static volatile DirectoryInitializationState directoryState = null;
private static String userPath;
private static AtomicBoolean isDirectoryInitializationRunning = new AtomicBoolean(false);
public static void start(Context context) {
// Can take a few seconds to run, so don't block UI thread.
//noinspection TrivialFunctionalExpressionUsage
((Runnable) () -> init(context)).run();
}
private static void init(Context context) {
if (!isDirectoryInitializationRunning.compareAndSet(false, true))
return;
if (directoryState != DirectoryInitializationState.YUZU_DIRECTORIES_INITIALIZED) {
if (PermissionsHandler.hasWriteAccess(context)) {
if (setUserDirectory()) {
initializeInternalStorage(context);
NativeLibrary.CreateConfigFile();
directoryState = DirectoryInitializationState.YUZU_DIRECTORIES_INITIALIZED;
} else {
directoryState = DirectoryInitializationState.CANT_FIND_EXTERNAL_STORAGE;
}
} else {
directoryState = DirectoryInitializationState.EXTERNAL_STORAGE_PERMISSION_NEEDED;
}
}
isDirectoryInitializationRunning.set(false);
sendBroadcastState(directoryState, context);
}
private static void deleteDirectoryRecursively(File file) {
if (file.isDirectory()) {
for (File child : file.listFiles())
deleteDirectoryRecursively(child);
}
file.delete();
}
public static boolean areDirectoriesReady() {
return directoryState == DirectoryInitializationState.YUZU_DIRECTORIES_INITIALIZED;
}
public static String getUserDirectory() {
if (directoryState == null) {
throw new IllegalStateException("DirectoryInitialization has to run at least once!");
} else if (isDirectoryInitializationRunning.get()) {
throw new IllegalStateException(
"DirectoryInitialization has to finish running first!");
}
return userPath;
}
private static native void SetSysDirectory(String path);
private static boolean setUserDirectory() {
if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
File externalPath = Environment.getExternalStorageDirectory();
if (externalPath != null) {
userPath = externalPath.getAbsolutePath() + "/yuzu-emu";
Log.debug("[DirectoryInitialization] User Dir: " + userPath);
// NativeLibrary.SetUserDirectory(userPath);
return true;
}
}
return false;
}
private static void initializeInternalStorage(Context context) {
File sysDirectory = new File(context.getFilesDir(), "Sys");
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
String revision = NativeLibrary.GetGitRevision();
if (!preferences.getString("sysDirectoryVersion", "").equals(revision)) {
// There is no extracted Sys directory, or there is a Sys directory from another
// version of yuzu that might contain outdated files. Let's (re-)extract Sys.
deleteDirectoryRecursively(sysDirectory);
copyAssetFolder("Sys", sysDirectory, true, context);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("sysDirectoryVersion", revision);
editor.apply();
}
// Let the native code know where the Sys directory is.
SetSysDirectory(sysDirectory.getPath());
}
private static void sendBroadcastState(DirectoryInitializationState state, Context context) {
Intent localIntent =
new Intent(BROADCAST_ACTION)
.putExtra(EXTRA_STATE, state);
LocalBroadcastManager.getInstance(context).sendBroadcast(localIntent);
}
private static void copyAsset(String asset, File output, Boolean overwrite, Context context) {
Log.verbose("[DirectoryInitialization] Copying File " + asset + " to " + output);
try {
if (!output.exists() || overwrite) {
InputStream in = context.getAssets().open(asset);
OutputStream out = new FileOutputStream(output);
copyFile(in, out);
in.close();
out.close();
}
} catch (IOException e) {
Log.error("[DirectoryInitialization] Failed to copy asset file: " + asset +
e.getMessage());
}
}
private static void copyAssetFolder(String assetFolder, File outputFolder, Boolean overwrite,
Context context) {
Log.verbose("[DirectoryInitialization] Copying Folder " + assetFolder + " to " +
outputFolder);
try {
boolean createdFolder = false;
for (String file : context.getAssets().list(assetFolder)) {
if (!createdFolder) {
outputFolder.mkdir();
createdFolder = true;
}
copyAssetFolder(assetFolder + File.separator + file, new File(outputFolder, file),
overwrite, context);
copyAsset(assetFolder + File.separator + file, new File(outputFolder, file), overwrite,
context);
}
} catch (IOException e) {
Log.error("[DirectoryInitialization] Failed to copy asset folder: " + assetFolder +
e.getMessage());
}
}
private static void copyFile(InputStream in, OutputStream out) throws IOException {
byte[] buffer = new byte[1024];
int read;
while ((read = in.read(buffer)) != -1) {
out.write(buffer, 0, read);
}
}
public enum DirectoryInitializationState {
YUZU_DIRECTORIES_INITIALIZED,
EXTERNAL_STORAGE_PERMISSION_NEEDED,
CANT_FIND_EXTERNAL_STORAGE
}
}
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