Core: Add autosave/-load cheats

CHANGES

@@ -8,6 +8,7 @@ Features:
  - Customizable autofire speed
  - Ability to set default Game Boy model
  - Map viewer
+ - Automatic cheat loading and saving
 Bugfixes:
  - GB Audio: Make audio unsigned with bias (fixes mgba.io/i/749)
  - GB Serialize: Fix audio state loading

include/mgba/core/cheats.h

@@ -79,6 +79,7 @@ struct mCheatDevice {
 	struct mCheatSet* (*createSet)(struct mCheatDevice*, const char* name);
 
 	struct mCheatSets cheats;
+	bool autosave;
 };
 
 struct VFile;
@@ -98,6 +99,7 @@ void mCheatRemoveSet(struct mCheatDevice*, struct mCheatSet*);
 
 bool mCheatParseFile(struct mCheatDevice*, struct VFile*);
 bool mCheatSaveFile(struct mCheatDevice*, struct VFile*);
+void mCheatAutosave(struct mCheatDevice*);
 
 void mCheatRefresh(struct mCheatDevice*, struct mCheatSet*);
 

include/mgba/core/config.h

@@ -51,6 +51,7 @@ struct mCoreOptions {
 	char* savestatePath;
 	char* screenshotPath;
 	char* patchPath;
+	char* cheatsPath;
 
 	int volume;
 	bool mute;

include/mgba/core/core.h

@@ -168,6 +168,7 @@ bool mCorePreloadFile(struct mCore* core, const char* path);
 
 bool mCoreAutoloadSave(struct mCore* core);
 bool mCoreAutoloadPatch(struct mCore* core);
+bool mCoreAutoloadCheats(struct mCore* core);
 
 bool mCoreSaveState(struct mCore* core, int slot, int flags);
 bool mCoreLoadState(struct mCore* core, int slot, int flags);

include/mgba/core/directories.h

@@ -21,6 +21,7 @@ struct mDirectorySet {
 	struct VDir* patch;
 	struct VDir* state;
 	struct VDir* screenshot;
+	struct VDir* cheats;
 };
 
 void mDirectorySetInit(struct mDirectorySet* dirs);

src/core/cheats.c

@@ -51,6 +51,7 @@ void mCheatDeviceCreate(struct mCheatDevice* device) {
 	device->d.id = M_CHEAT_DEVICE_ID;
 	device->d.init = mCheatDeviceInit;
 	device->d.deinit = mCheatDeviceDeinit;
+	device->autosave = false;
 	mCheatSetsInit(&device->cheats, 4);
 }
 
@@ -252,6 +253,15 @@ bool mCheatSaveFile(struct mCheatDevice* device, struct VFile* vf) {
 	return true;
 }
 
+void mCheatAutosave(struct mCheatDevice* device) {
+	if (!device->autosave) {
+		return;
+	}
+	struct VFile* vf = mDirectorySetOpenSuffix(&device->p->dirs, device->p->dirs.cheats, ".cheats", O_WRONLY | O_CREAT | O_TRUNC);
+	mCheatSaveFile(device, vf);
+	vf->close(vf);
+}
+
 void mCheatRefresh(struct mCheatDevice* device, struct mCheatSet* cheats) {
 	if (!cheats->enabled) {
 		return;

src/core/config.c

@@ -379,6 +379,7 @@ void mCoreConfigMap(const struct mCoreConfig* config, struct mCoreOptions* opts)
 	_lookupCharValue(config, "savestatePath", &opts->savestatePath);
 	_lookupCharValue(config, "screenshotPath", &opts->screenshotPath);
 	_lookupCharValue(config, "patchPath", &opts->patchPath);
+	_lookupCharValue(config, "cheatsPath", &opts->cheatsPath);
 }
 
 void mCoreConfigLoadDefaults(struct mCoreConfig* config, const struct mCoreOptions* opts) {
@@ -443,10 +444,12 @@ void mCoreConfigFreeOpts(struct mCoreOptions* opts) {
 	free(opts->savestatePath);
 	free(opts->screenshotPath);
 	free(opts->patchPath);
+	free(opts->cheatsPath);
 	opts->bios = 0;
 	opts->shader = 0;
 	opts->savegamePath = 0;
 	opts->savestatePath = 0;
 	opts->screenshotPath = 0;
 	opts->patchPath = 0;
+	opts->cheatsPath = 0;
 }

src/core/core.c

@@ -5,6 +5,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include <mgba/core/core.h>
 
+#include <mgba/core/cheats.h>
 #include <mgba/core/log.h>
 #include <mgba/core/serialize.h>
 #include <mgba-util/vfs.h>
@@ -165,6 +166,24 @@ bool mCoreAutoloadPatch(struct mCore* core) {
 	       core->loadPatch(core, mDirectorySetOpenSuffix(&core->dirs, core->dirs.patch, ".bps", O_RDONLY));
 }
 
+bool mCoreAutoloadCheats(struct mCore* core) {
+	bool success = true;
+	int cheatAuto;
+	if (!mCoreConfigGetIntValue(&core->config, "cheatAutoload", &cheatAuto) || cheatAuto) {
+		struct VFile* vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.cheats, ".cheats", O_RDONLY);
+		if (vf) {
+			struct mCheatDevice* device = core->cheatDevice(core);
+			success = mCheatParseFile(device, vf);
+			vf->close(vf);
+		}
+	}
+	if (!mCoreConfigGetIntValue(&core->config, "cheatAutosave", &cheatAuto) || cheatAuto) {
+		struct mCheatDevice* device = core->cheatDevice(core);
+		device->autosave = true;
+	}
+	return success;
+}
+
 bool mCoreSaveState(struct mCore* core, int slot, int flags) {
 	struct VFile* vf = mCoreGetState(core, slot, true);
 	if (!vf) {
@@ -271,6 +290,10 @@ void mCoreLoadForeignConfig(struct mCore* core, const struct mCoreConfig* config
 	if (core->opts.audioBuffers) {
 		core->setAudioBufferSize(core, core->opts.audioBuffers);
 	}
+
+	mCoreConfigCopyValue(&core->config, config, "cheatAutosave");
+	mCoreConfigCopyValue(&core->config, config, "cheatAutoload");
+
 	core->loadConfig(core, config);
 }
 

src/core/directories.c

@@ -16,6 +16,7 @@ void mDirectorySetInit(struct mDirectorySet* dirs) {
 	dirs->patch = 0;
 	dirs->state = 0;
 	dirs->screenshot = 0;
+	dirs->cheats = 0;
 }
 
 void mDirectorySetDeinit(struct mDirectorySet* dirs) {
@@ -34,6 +35,9 @@ void mDirectorySetDeinit(struct mDirectorySet* dirs) {
 		if (dirs->archive == dirs->screenshot) {
 			dirs->screenshot = NULL;
 		}
+		if (dirs->archive == dirs->cheats) {
+			dirs->cheats = NULL;
+		}
 		dirs->archive->close(dirs->archive);
 		dirs->archive = NULL;
 	}
@@ -48,6 +52,9 @@ void mDirectorySetDeinit(struct mDirectorySet* dirs) {
 		if (dirs->save == dirs->screenshot) {
 			dirs->screenshot = NULL;
 		}
+		if (dirs->save == dirs->cheats) {
+			dirs->cheats = NULL;
+		}
 		dirs->save->close(dirs->save);
 		dirs->save = NULL;
 	}
@@ -59,6 +66,9 @@ void mDirectorySetDeinit(struct mDirectorySet* dirs) {
 		if (dirs->patch == dirs->screenshot) {
 			dirs->screenshot = NULL;
 		}
+		if (dirs->patch == dirs->cheats) {
+			dirs->cheats = NULL;
+		}
 		dirs->patch->close(dirs->patch);
 		dirs->patch = NULL;
 	}
@@ -67,14 +77,25 @@ void mDirectorySetDeinit(struct mDirectorySet* dirs) {
 		if (dirs->state == dirs->screenshot) {
 			dirs->state = NULL;
 		}
+		if (dirs->state == dirs->cheats) {
+			dirs->cheats = NULL;
+		}
 		dirs->state->close(dirs->state);
 		dirs->state = NULL;
 	}
 
 	if (dirs->screenshot) {
+		if (dirs->screenshot == dirs->cheats) {
+			dirs->cheats = NULL;
+		}
 		dirs->screenshot->close(dirs->screenshot);
 		dirs->screenshot = NULL;
 	}
+
+	if (dirs->cheats) {
+		dirs->cheats->close(dirs->cheats);
+		dirs->cheats = NULL;
+	}
 }
 
 void mDirectorySetAttachBase(struct mDirectorySet* dirs, struct VDir* base) {
@@ -91,6 +112,9 @@ void mDirectorySetAttachBase(struct mDirectorySet* dirs, struct VDir* base) {
 	if (!dirs->screenshot) {
 		dirs->screenshot = dirs->base;
 	}
+	if (!dirs->cheats) {
+		dirs->cheats = dirs->base;
+	}
 }
 
 void mDirectorySetDetachBase(struct mDirectorySet* dirs) {
@@ -106,6 +130,9 @@ void mDirectorySetDetachBase(struct mDirectorySet* dirs) {
 	if (dirs->screenshot == dirs->base) {
 		dirs->screenshot = NULL;
 	}
+	if (dirs->cheats == dirs->base) {
+		dirs->cheats = NULL;
+	}
 
 	if (dirs->base) {
 		dirs->base->close(dirs->base);
@@ -183,5 +210,15 @@ void mDirectorySetMapOptions(struct mDirectorySet* dirs, const struct mCoreOptio
 			dirs->patch = dir;
 		}
 	}
+
+	if (opts->cheatsPath) {
+		struct VDir* dir = VDirOpen(opts->cheatsPath);
+		if (dir) {
+			if (dirs->cheats && dirs->cheats != dirs->base) {
+				dirs->cheats->close(dirs->cheats);
+			}
+			dirs->cheats = dir;
+		}
+	}
 }
 #endif

src/feature/gui/gui-runner.c

@@ -306,6 +306,7 @@ void mGUIRun(struct mGUIRunner* runner, const char* path) {
 
 	mLOG(GUI_RUNNER, DEBUG, "Loading save...");
 	mCoreAutoloadSave(runner->core);
+	mCoreAutoloadCheats(runner->core);
 	if (runner->setup) {
 		mLOG(GUI_RUNNER, DEBUG, "Setting up runner...");
 		runner->setup(runner);

src/platform/python/mgba/core.py

@@ -182,6 +182,9 @@ class Core(object):
     def autoloadPatch(self):
         return bool(lib.mCoreAutoloadPatch(self._core))
 
+    def autoloadCheats(self):
+        return bool(lib.mCoreAutoloadCheats(self._core))
+
     def platform(self):
         return self._core.platform(self._core)
 

src/platform/qt/CheatsModel.cpp

@@ -70,10 +70,12 @@ bool CheatsModel::setData(const QModelIndex& index, const QVariant& value, int r
 	case Qt::DisplayRole:
 	case Qt::EditRole:
 		mCheatSetRename(cheats, value.toString().toUtf8().constData());
+		mCheatAutosave(m_device);
 		emit dataChanged(index, index);
 		return true;
 	case Qt::CheckStateRole:
 		cheats->enabled = value == Qt::Checked;
+		mCheatAutosave(m_device);
 		emit dataChanged(index, index);
 		return true;
 	default:
@@ -154,7 +156,8 @@ void CheatsModel::removeAt(const QModelIndex& index) {
 	beginRemoveRows(QModelIndex(), row, row);
 	mCheatRemoveSet(m_device, set);
 	mCheatSetDeinit(set);
-	endInsertRows();
+	endRemoveRows();
+	mCheatAutosave(m_device);
 }
 
 QString CheatsModel::toString(const QModelIndexList& indices) const {
@@ -201,6 +204,7 @@ void CheatsModel::beginAppendRow(const QModelIndex& index) {
 
 void CheatsModel::endAppendRow() {
 	endInsertRows();
+	mCheatAutosave(m_device);
 }
 
 void CheatsModel::loadFile(const QString& path) {
@@ -232,6 +236,7 @@ void CheatsModel::addSet(mCheatSet* set) {
 	}
 	mCheatAddSet(m_device, set);
 	endInsertRows();
+	mCheatAutosave(m_device);
 }
 
 void CheatsModel::invalidated() {

src/platform/qt/CheatsView.cpp

@@ -109,14 +109,14 @@ bool CheatsView::eventFilter(QObject* object, QEvent* event) {
 }
 
 void CheatsView::load() {
-	QString filename = GBAApp::app()->getOpenFileName(this, tr("Select cheats file"));
+	QString filename = GBAApp::app()->getOpenFileName(this, tr("Select cheats file"), tr(("Cheats file (*.cheats *.cht *.clt)")));
 	if (!filename.isEmpty()) {
 		m_model.loadFile(filename);
 	}
 }
 
 void CheatsView::save() {
-	QString filename = GBAApp::app()->getSaveFileName(this, tr("Select cheats file"));
+	QString filename = GBAApp::app()->getSaveFileName(this, tr("Select cheats file"), tr(("Cheats file (*.cheats *.cht *.clt)")));
 	if (!filename.isEmpty()) {
 		m_model.saveFile(filename);
 	}

src/platform/qt/CoreManager.cpp

@@ -109,6 +109,7 @@ CoreController* CoreManager::loadGame(VFile* vf, const QString& path, const QStr
 	bytes = info.dir().canonicalPath().toUtf8();
 	mDirectorySetAttachBase(&core->dirs, VDirOpen(bytes.constData()));
 	mCoreAutoloadSave(core);
+	mCoreAutoloadCheats(core);
 
 	CoreController* cc = new CoreController(core);
 	if (m_multiplayer) {

src/platform/qt/SettingsView.cpp

@@ -106,6 +106,22 @@ SettingsView::SettingsView(ConfigController* controller, InputController* inputC
 			m_ui.patchPath->setText(path);
 		}
 	});
+
+	if (m_ui.cheatsPath->text().isEmpty()) {
+		m_ui.cheatsSameDir->setChecked(true);
+	}
+	connect(m_ui.cheatsSameDir, &QAbstractButton::toggled, [this] (bool e) {
+		if (e) {
+			m_ui.cheatsPath->clear();
+		}
+	});
+	connect(m_ui.cheatsBrowse, &QAbstractButton::pressed, [this] () {
+		QString path = GBAApp::app()->getOpenDirectoryName(this, "Select directory");
+		if (!path.isNull()) {
+			m_ui.cheatsSameDir->setChecked(false);
+			m_ui.cheatsPath->setText(path);
+		}
+	});
 	connect(m_ui.clearCache, &QAbstractButton::pressed, this, &SettingsView::libraryCleared);
 
 	// TODO: Move to reloadConfig()
@@ -334,10 +350,13 @@ void SettingsView::updateConfig() {
 	saveSetting("savestatePath", m_ui.savestatePath);
 	saveSetting("screenshotPath", m_ui.screenshotPath);
 	saveSetting("patchPath", m_ui.patchPath);
+	saveSetting("cheatsPath", m_ui.cheatsPath);
 	saveSetting("libraryStyle", m_ui.libraryStyle->currentIndex());
 	saveSetting("showLibrary", m_ui.showLibrary);
 	saveSetting("preload", m_ui.preload);
 	saveSetting("showFps", m_ui.showFps);
+	saveSetting("cheatAutoload", m_ui.cheatAutoload);
+	saveSetting("cheatAutosave", m_ui.cheatAutosave);
 
 	if (m_ui.fastForwardUnbounded->isChecked()) {
 		saveSetting("fastForwardRatio", "-1");
@@ -453,9 +472,12 @@ void SettingsView::reloadConfig() {
 	loadSetting("savestatePath", m_ui.savestatePath);
 	loadSetting("screenshotPath", m_ui.screenshotPath);
 	loadSetting("patchPath", m_ui.patchPath);
+	loadSetting("cheatsPath", m_ui.cheatsPath);
 	loadSetting("showLibrary", m_ui.showLibrary);
 	loadSetting("preload", m_ui.preload);
 	loadSetting("showFps", m_ui.showFps, true);
+	loadSetting("cheatAutoload", m_ui.cheatAutoload, true);
+	loadSetting("cheatAutosave", m_ui.cheatAutosave, true);
 
 	m_ui.libraryStyle->setCurrentIndex(loadSetting("libraryStyle").toInt());
 

src/platform/qt/SettingsView.ui

@@ -419,6 +419,13 @@
          </item>
         </widget>
        </item>
+       <item row="1" column="0" colspan="2">
+        <widget class="Line" name="line_10">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
        <item row="2" column="0">
         <widget class="QLabel" name="label_6">
          <property name="text">
@@ -488,17 +495,37 @@
          </property>
         </widget>
        </item>
-       <item row="1" column="0" colspan="2">
-        <widget class="Line" name="line_10">
+       <item row="9" column="1">
+        <widget class="QCheckBox" name="showFps">
+         <property name="text">
+          <string>Show FPS in title bar</string>
+         </property>
+         <property name="checked">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
+       <item row="10" column="0" colspan="2">
+        <widget class="Line" name="line_13">
          <property name="orientation">
           <enum>Qt::Horizontal</enum>
          </property>
         </widget>
        </item>
-       <item row="9" column="1">
-        <widget class="QCheckBox" name="showFps">
+       <item row="11" column="1">
+        <widget class="QCheckBox" name="cheatAutosave">
          <property name="text">
-          <string>Show FPS in title bar</string>
+          <string>Automatically save cheats</string>
+         </property>
+         <property name="checked">
+          <bool>true</bool>
+         </property>
+        </widget>
+       </item>
+       <item row="12" column="1">
+        <widget class="QCheckBox" name="cheatAutoload">
+         <property name="text">
+          <string>Automatically load cheats</string>
          </property>
          <property name="checked">
           <bool>true</bool>
@@ -1068,6 +1095,54 @@
          </property>
         </widget>
        </item>
+       <item row="12" column="0" colspan="2">
+        <widget class="Line" name="line_14">
+         <property name="orientation">
+          <enum>Qt::Horizontal</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="13" column="0">
+        <widget class="QLabel" name="label_48">
+         <property name="text">
+          <string>Cheats</string>
+         </property>
+        </widget>
+       </item>
+       <item row="13" column="1">
+        <layout class="QHBoxLayout" name="horizontalLayout_27">
+         <item>
+          <widget class="QLineEdit" name="cheatsPath">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <property name="minimumSize">
+            <size>
+             <width>170</width>
+             <height>0</height>
+            </size>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="cheatsBrowse">
+           <property name="text">
+            <string>Browse</string>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item row="14" column="1">
+        <widget class="QCheckBox" name="cheatsSameDir">
+         <property name="text">
+          <string>Same directory as the ROM</string>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="gb">

src/platform/sdl/main.c

@@ -181,6 +181,7 @@ int mSDLRun(struct mSDLRenderer* renderer, struct mArguments* args) {
 		return 1;
 	}
 	mCoreAutoloadSave(renderer->core);
+	mCoreAutoloadCheats(renderer->core);
 #ifdef ENABLE_SCRIPTING
 	struct mScriptBridge* bridge = mScriptBridgeCreate();
 #ifdef ENABLE_PYTHON