android: Implement play time tracking (#813)

* android: Implement play time tacking

Co-Authored-By: Reg Tiangha <rtiangha@users.noreply.github.com>

* Moved playtime manager from `citra_qt` to `common`

* Reimplemented Android play time to use existing logic from desktop

* Updated license headers

* When getting current game ID fails, silently error rather than crashing

* playTimeManagerStart: Check that `play_time_manager` is initialized before using it

---------

Co-authored-by: Kleidis <167202775+kleidis@users.noreply.github.com>
Co-authored-by: Reg Tiangha <rtiangha@users.noreply.github.com>

src/android/app/src/main/java/org/citra/citra_emu/CitraApplication.kt

@@ -1,4 +1,4 @@
-// Copyright 2023 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
@@ -58,6 +58,7 @@ class CitraApplication : Application() {
         NativeLibrary.logDeviceInfo()
         logDeviceInfo()
         createNotificationChannel()
+        NativeLibrary.playTimeManagerInit()
     }
 
     fun logDeviceInfo() {

src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt

@@ -21,7 +21,6 @@ import androidx.core.content.ContextCompat
 import androidx.fragment.app.DialogFragment
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.citra.citra_emu.activities.EmulationActivity
-import org.citra.citra_emu.utils.EmulationMenuSettings
 import org.citra.citra_emu.utils.FileUtil
 import org.citra.citra_emu.utils.Log
 import java.lang.ref.WeakReference
@@ -190,6 +189,12 @@ object NativeLibrary {
 
     external fun disableTemporaryFrameLimit()
 
+    external fun playTimeManagerInit()
+    external fun playTimeManagerStart(titleId: Long)
+    external fun playTimeManagerStop()
+    external fun playTimeManagerGetPlayTime(titleId: Long): Long
+    external fun playTimeManagerGetCurrentTitleId(): Long
+
     private var coreErrorAlertResult = false
     private val coreErrorAlertLock = Object()
 

src/android/app/src/main/java/org/citra/citra_emu/activities/EmulationActivity.kt

@@ -6,7 +6,6 @@ package org.citra.citra_emu.activities
 
 import android.Manifest.permission
 import android.annotation.SuppressLint
-import android.app.Activity
 import android.content.Intent
 import android.content.SharedPreferences
 import android.content.pm.PackageManager
@@ -21,6 +20,7 @@ import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.os.BundleCompat
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
@@ -40,12 +40,13 @@ import org.citra.citra_emu.features.settings.model.SettingsViewModel
 import org.citra.citra_emu.features.settings.model.view.InputBindingSetting
 import org.citra.citra_emu.fragments.EmulationFragment
 import org.citra.citra_emu.fragments.MessageDialogFragment
+import org.citra.citra_emu.model.Game
 import org.citra.citra_emu.utils.ControllerMappingHelper
 import org.citra.citra_emu.utils.FileBrowserHelper
 import org.citra.citra_emu.utils.EmulationLifecycleUtil
 import org.citra.citra_emu.utils.EmulationMenuSettings
+import org.citra.citra_emu.utils.Log
 import org.citra.citra_emu.utils.ThemeUtil
-import org.citra.citra_emu.utils.TurboHelper
 import org.citra.citra_emu.viewmodel.EmulationViewModel
 
 class EmulationActivity : AppCompatActivity() {
@@ -110,6 +111,20 @@ class EmulationActivity : AppCompatActivity() {
         instance = this
 
         applyOrientationSettings() // Check for orientation settings at startup
+
+        val game = try {
+            intent.extras?.let { extras ->
+                BundleCompat.getParcelable(extras, "game", Game::class.java)
+            } ?: run {
+                Log.error("[EmulationActivity] Missing game data in intent extras")
+                return
+            }
+        } catch (e: Exception) {
+            Log.error("[EmulationActivity] Failed to retrieve game data: ${e.message}")
+            return
+        }
+
+        NativeLibrary.playTimeManagerStart(game.titleId)
     }
 
     // On some devices, the system bars will not disappear on first boot or after some
@@ -143,6 +158,7 @@ class EmulationActivity : AppCompatActivity() {
 
     override fun onDestroy() {
         EmulationLifecycleUtil.clear()
+        NativeLibrary.playTimeManagerStop()
         isEmulationRunning = false
         instance = null
         super.onDestroy()

src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt

@@ -45,6 +45,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.CoroutineScope
 import org.citra.citra_emu.HomeNavigationDirections
 import org.citra.citra_emu.CitraApplication
+import org.citra.citra_emu.NativeLibrary
 import org.citra.citra_emu.R
 import org.citra.citra_emu.adapters.GameAdapter.GameViewHolder
 import org.citra.citra_emu.databinding.CardGameBinding
@@ -351,6 +352,24 @@ class GameAdapter(private val activity: AppCompatActivity, private val inflater:
             view.findNavController().navigate(action)
         }
 
+        bottomSheetView.findViewById<TextView>(R.id.about_game_playtime).text =
+            buildString {
+                val playTimeSeconds = NativeLibrary.playTimeManagerGetPlayTime(game.titleId)
+
+                val hours = playTimeSeconds / 3600
+                val minutes = (playTimeSeconds % 3600) / 60
+                val seconds = playTimeSeconds % 60
+
+                val readablePlayTime = when {
+                    hours > 0 -> "${hours}h ${minutes}m ${seconds}s"
+                    minutes > 0 -> "${minutes}m ${seconds}s"
+                    else -> "${seconds}s"
+                }
+
+                append("Playtime: ")
+                append(readablePlayTime)
+            }
+
         bottomSheetView.findViewById<MaterialButton>(R.id.game_shortcut).setOnClickListener {
             val preferences = PreferenceManager.getDefaultSharedPreferences(context)
 

src/android/app/src/main/java/org/citra/citra_emu/fragments/EmulationFragment.kt

@@ -355,7 +355,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
                 }
 
                 R.id.menu_exit -> {
-                    NativeLibrary.pauseEmulation()
+                    emulationState.pause()
                     MaterialAlertDialogBuilder(requireContext())
                         .setTitle(R.string.emulation_close_game)
                         .setMessage(R.string.emulation_close_game_message)
@@ -363,9 +363,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
                             EmulationLifecycleUtil.closeGame()
                         }
                         .setNegativeButton(android.R.string.cancel) { _: DialogInterface?, _: Int ->
-                            NativeLibrary.unPauseEmulation()
+                            emulationState.unpause()
                         }
-                        .setOnCancelListener { NativeLibrary.unPauseEmulation() }
+                        .setOnCancelListener { emulationState.unpause() }
                         .show()
                     true
                 }
@@ -470,7 +470,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
         super.onResume()
         Choreographer.getInstance().postFrameCallback(this)
         if (NativeLibrary.isRunning()) {
-            NativeLibrary.unPauseEmulation()
+            emulationState.pause()
 
             // If the overlay is enabled, we need to update the position if changed
             val position = IntSetting.PERFORMANCE_OVERLAY_POSITION.int
@@ -1395,6 +1395,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
                 // Release the surface before pausing, since emulation has to be running for that.
                 NativeLibrary.surfaceDestroyed()
                 NativeLibrary.pauseEmulation()
+                NativeLibrary.playTimeManagerStop()
             } else {
                 Log.warning("[EmulationFragment] Pause called while already paused.")
             }
@@ -1407,6 +1408,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
                 Log.debug("[EmulationFragment] Unpausing emulation.")
 
                 NativeLibrary.unPauseEmulation()
+                NativeLibrary.playTimeManagerStart(NativeLibrary.playTimeManagerGetCurrentTitleId())
             } else {
                 Log.warning("[EmulationFragment] Unpause called while already running.")
             }
@@ -1473,7 +1475,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback, Choreographer.Fram
 
                 State.PAUSED -> {
                     Log.debug("[EmulationFragment] Resuming emulation.")
-                    NativeLibrary.unPauseEmulation()
+                    unpause()
                 }
 
                 else -> {

src/android/app/src/main/jni/native.cpp

@@ -27,6 +27,7 @@
 #include "common/logging/backend.h"
 #include "common/logging/log.h"
 #include "common/microprofile.h"
+#include "common/play_time_manager.h"
 #include "common/scm_rev.h"
 #include "common/scope_exit.h"
 #include "common/settings.h"
@@ -71,6 +72,9 @@ ANativeWindow* s_surf;
 std::shared_ptr<Common::DynamicLibrary> vulkan_library{};
 std::unique_ptr<EmuWindow_Android> window;
 
+std::unique_ptr<PlayTime::PlayTimeManager> play_time_manager;
+jlong ptm_current_title_id = std::numeric_limits<jlong>::max(); // Arbitrary default value
+
 std::atomic<bool> stop_run{true};
 std::atomic<bool> pause_emulation{false};
 
@@ -795,4 +799,31 @@ void Java_org_citra_citra_1emu_NativeLibrary_disableTemporaryFrameLimit(JNIEnv*
     Settings::is_temporary_frame_limit = false;
 }
 
+void Java_org_citra_citra_1emu_NativeLibrary_playTimeManagerInit(JNIEnv* env, jobject obj) {
+    play_time_manager = std::make_unique<PlayTime::PlayTimeManager>();
+}
+
+void Java_org_citra_citra_1emu_NativeLibrary_playTimeManagerStart(JNIEnv* env, jobject obj,
+                                                                  jlong title_id) {
+    ptm_current_title_id = title_id;
+    if (play_time_manager) {
+        play_time_manager->SetProgramId(static_cast<u64>(title_id));
+        play_time_manager->Start();
+    }
+}
+
+void Java_org_citra_citra_1emu_NativeLibrary_playTimeManagerStop(JNIEnv* env, jobject obj) {
+    play_time_manager->Stop();
+}
+
+jlong Java_org_citra_citra_1emu_NativeLibrary_playTimeManagerGetPlayTime(JNIEnv* env, jobject obj,
+                                                                         jlong title_id) {
+    return static_cast<jlong>(play_time_manager->GetPlayTime(title_id));
+}
+
+jlong Java_org_citra_citra_1emu_NativeLibrary_playTimeManagerGetCurrentTitleId(JNIEnv* env,
+                                                                               jobject obj) {
+    return ptm_current_title_id;
+}
+
 } // extern "C"

src/android/app/src/main/res/layout/dialog_about_game.xml

@@ -44,8 +44,8 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:textAlignment="viewStart"
-                android:textSize="20sp"
-                app:layout_constraintStart_toStartOf="parent"
+                android:textSize="15sp"
+                android:textStyle="bold"                app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toTopOf="parent"
                 tools:text="Application Title" />
 
@@ -85,6 +85,15 @@
                 app:layout_constraintTop_toBottomOf="@+id/about_game_id"
                 tools:text="Application Filename" />
 
+            <TextView
+                android:id="@+id/about_game_playtime"
+                style="?attr/textAppearanceBodyMedium"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                app:layout_constraintStart_toStartOf="@id/about_game_title"
+                app:layout_constraintTop_toBottomOf="@+id/about_game_filename"
+                tools:text="Game Playtime" />
+
         </androidx.constraintlayout.widget.ConstraintLayout>
 
         <LinearLayout

src/citra_qt/CMakeLists.txt

@@ -171,8 +171,6 @@ add_library(citra_qt STATIC EXCLUDE_FROM_ALL
     multiplayer/state.cpp
     multiplayer/state.h
     multiplayer/validation.h
-    play_time_manager.cpp
-    play_time_manager.h
     precompiled_headers.h
     uisettings.cpp
     uisettings.h

src/citra_qt/citra_qt.cpp

@@ -67,9 +67,9 @@
 #include "citra_qt/movie/movie_play_dialog.h"
 #include "citra_qt/movie/movie_record_dialog.h"
 #include "citra_qt/multiplayer/state.h"
-#include "citra_qt/play_time_manager.h"
 #include "citra_qt/qt_image_interface.h"
 #include "citra_qt/uisettings.h"
+#include "common/play_time_manager.h"
 #ifdef ENABLE_QT_UPDATE_CHECKER
 #include "citra_qt/update_checker.h"
 #endif

src/citra_qt/game_list.h

@@ -10,8 +10,8 @@
 #include <QVector>
 #include <QWidget>
 #include "citra_qt/compatibility_list.h"
-#include "citra_qt/play_time_manager.h"
 #include "common/common_types.h"
+#include "common/play_time_manager.h"
 #include "uisettings.h"
 
 namespace Service::FS {

src/citra_qt/game_list_p.h

@@ -1,7 +1,6 @@
-// Copyright 2015 Citra Emulator Project
+// Copyright Citra Emulator Project / Azahar Emulator Project
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
-
 #pragma once
 
 #include <algorithm>
@@ -18,11 +17,11 @@
 #include <QStandardItem>
 #include <QString>
 #include <QWidget>
-#include "citra_qt/play_time_manager.h"
 #include "citra_qt/uisettings.h"
 #include "citra_qt/util/util.h"
 #include "common/file_util.h"
 #include "common/logging/log.h"
+#include "common/play_time_manager.h"
 #include "common/string_util.h"
 #include "core/loader/smdh.h"
 
@@ -382,7 +381,7 @@ public:
 
     void setData(const QVariant& value, int role) override {
         qulonglong time_seconds = value.toULongLong();
-        GameListItem::setData(PlayTime::ReadablePlayTime(time_seconds), Qt::DisplayRole);
+        GameListItem::setData(ReadableDuration(time_seconds), Qt::DisplayRole);
         GameListItem::setData(value, PlayTimeRole);
     }
 

src/citra_qt/game_list_worker.h

@@ -1,3 +1,7 @@
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
 // Copyright 2018 yuzu emulator team
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
@@ -13,8 +17,8 @@
 #include <QString>
 #include <QVector>
 #include "citra_qt/compatibility_list.h"
-#include "citra_qt/play_time_manager.h"
 #include "common/common_types.h"
+#include "common/play_time_manager.h"
 
 namespace Service::FS {
 enum class MediaType : u32;

src/citra_qt/util/util.cpp

@@ -36,6 +36,21 @@ QString ReadableByteSize(qulonglong size) {
         .arg(QString::fromUtf8(units[digit_groups]));
 }
 
+QString ReadableDuration(qulonglong time_seconds) {
+    if (time_seconds == 0) {
+        return {};
+    }
+    const auto time_minutes = std::max(static_cast<double>(time_seconds) / 60, 1.0);
+    const auto time_hours = static_cast<double>(time_seconds) / 3600;
+    const bool is_minutes = time_minutes < 60;
+    const char* unit = is_minutes ? "m" : "h";
+    const auto value = is_minutes ? time_minutes : time_hours;
+
+    return QStringLiteral("%L1 %2")
+        .arg(value, 0, 'f', !is_minutes && time_seconds % 60 != 0)
+        .arg(QString::fromUtf8(unit));
+}
+
 QPixmap CreateCirclePixmapFromColor(const QColor& color) {
     QPixmap circle_pixmap(16, 16);
     circle_pixmap.fill(Qt::transparent);

src/citra_qt/util/util.h

@@ -15,6 +15,9 @@ QFont GetMonospaceFont();
 /// Convert a size in bytes into a readable format (KiB, MiB, etc.)
 QString ReadableByteSize(qulonglong size);
 
+// Converts a length of time in seconds into a readable format
+QString ReadableDuration(qulonglong time_seconds);
+
 /**
  * Creates a circle pixmap from a specified color
  * @param color The color the pixmap shall have

src/common/CMakeLists.txt

@@ -114,6 +114,8 @@ add_library(citra_common STATIC
     microprofileui.h
     param_package.cpp
     param_package.h
+    play_time_manager.cpp
+    play_time_manager.h
     polyfill_thread.h
     precompiled_headers.h
     quaternion.h

src/common/play_time_manager.cpp

@@ -1,12 +1,13 @@
-// SPDX-FileCopyrightText: 2024 Citra Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
 
 #include <filesystem>
-#include "citra_qt/play_time_manager.h"
 #include "common/alignment.h"
 #include "common/common_paths.h"
 #include "common/file_util.h"
 #include "common/logging/log.h"
+#include "common/play_time_manager.h"
 #include "common/settings.h"
 #include "common/thread.h"
 
@@ -140,19 +141,4 @@ void PlayTimeManager::ResetProgramPlayTime(u64 program_id) {
     Save();
 }
 
-QString ReadablePlayTime(qulonglong time_seconds) {
-    if (time_seconds == 0) {
-        return {};
-    }
-    const auto time_minutes = std::max(static_cast<double>(time_seconds) / 60, 1.0);
-    const auto time_hours = static_cast<double>(time_seconds) / 3600;
-    const bool is_minutes = time_minutes < 60;
-    const char* unit = is_minutes ? "m" : "h";
-    const auto value = is_minutes ? time_minutes : time_hours;
-
-    return QStringLiteral("%L1 %2")
-        .arg(value, 0, 'f', !is_minutes && time_seconds % 60 != 0)
-        .arg(QString::fromUtf8(unit));
-}
-
 } // namespace PlayTime

src/common/play_time_manager.h

@@ -1,10 +1,9 @@
-// SPDX-FileCopyrightText: 2024 Citra Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright Citra Emulator Project / Azahar Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
 
 #pragma once
 
-#include <QString>
-
 #include <map>
 
 #include "common/common_funcs.h"
@@ -40,6 +39,4 @@ private:
     std::jthread play_time_thread;
 };
 
-QString ReadablePlayTime(qulonglong time_seconds);
-
 } // namespace PlayTime