Merge branch 'wheremyfoodat:master' into ui

.gitmodules

@@ -43,3 +43,6 @@
 [submodule "third_party/hydra_core"]
 	path = third_party/hydra_core
 	url = https://github.com/hydra-emu/core
+[submodule "third_party/zep"]
+	path = third_party/zep
+	url = https://github.com/Panda3DS-emu/zep

CMakeLists.txt

@@ -186,12 +186,20 @@ set(RENDERER_SW_SOURCE_FILES src/core/renderer_sw/renderer_sw.cpp)
 # Frontend source files
 if(NOT ANDROID)
     if(ENABLE_QT_GUI)
-        set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp src/panda_qt/main_window.cpp src/panda_qt/about_window.cpp src/panda_qt/config_window.cpp)
+        set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp src/panda_qt/main_window.cpp src/panda_qt/about_window.cpp
-        set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp include/panda_qt/main_window.hpp include/panda_qt/about_window.hpp include/panda_qt/config_window.hpp)
+            src/panda_qt/config_window.cpp src/panda_qt/zep.cpp src/panda_qt/text_editor.cpp
+        )   
+        set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp include/panda_qt/main_window.hpp include/panda_qt/about_window.hpp
+            include/panda_qt/config_window.hpp include/panda_qt/text_editor.hpp
+        )
 
         source_group("Source Files\\Qt" FILES ${FRONTEND_SOURCE_FILES})
         source_group("Header Files\\Qt" FILES ${FRONTEND_HEADER_FILES})
         include_directories(${Qt6Gui_PRIVATE_INCLUDE_DIRS})
+
+        include_directories(third_party/zep/include) # Include zep for text editor usage
+        configure_file(third_party/zep/cmake/config_app.h.cmake ${CMAKE_BINARY_DIR}/zep_config/config_app.h)
+        include_directories(${CMAKE_BINARY_DIR}/zep_config)
     else()
         set(FRONTEND_SOURCE_FILES src/panda_sdl/main.cpp src/panda_sdl/frontend_sdl.cpp)
         set(FRONTEND_HEADER_FILES "")
@@ -428,6 +436,9 @@ endif()
 
 if(ENABLE_QT_GUI)
     target_compile_definitions(Alber PUBLIC "PANDA3DS_FRONTEND_QT=1")
+    target_compile_definitions(Alber PUBLIC "ZEP_QT=1")
+    target_compile_definitions(Alber PUBLIC "ZEP_FEATURE_CPP_FILE_SYSTEM=1")
+
     target_link_libraries(Alber PRIVATE Qt6::Widgets)
 
     if(LINUX OR FREEBSD)

include/emulator.hpp

@@ -119,6 +119,8 @@ class Emulator {
 	EmulatorConfig& getConfig() { return config; }
 	Cheats& getCheats() { return cheats; }
 	ServiceManager& getServiceManager() { return kernel.getServiceManager(); }
+	LuaManager& getLua() { return lua; }
+
 	RendererType getRendererType() const { return config.rendererType; }
 	Renderer* getRenderer() { return gpu.getRenderer(); }
 	u64 getTicks() { return cpu.getTicks(); }

include/lua_manager.hpp

@@ -1,4 +1,6 @@
 #pragma once
+#include <string>
+
 #include "helpers.hpp"
 #include "memory.hpp"
 
@@ -36,6 +38,8 @@ class LuaManager {
 	void initialize();
 	void initializeThunks();
 	void loadFile(const char* path);
+	void loadString(const std::string& code);
+
 	void reset();
 	void signalEvent(LuaEvent e) {
 		if (haveScript) [[unlikely]] {
@@ -52,6 +56,7 @@ class LuaManager {
 	void close() {}
 	void initialize() {}
 	void loadFile(const char* path) {}
+	void loadString(const std::string& code) {}
 	void reset() {}
 	void signalEvent(LuaEvent e) {}
 };

include/panda_qt/main_window.hpp

@@ -13,6 +13,7 @@
 #include "panda_qt/about_window.hpp"
 #include "panda_qt/config_window.hpp"
 #include "panda_qt/screen.hpp"
+#include "panda_qt/text_editor.hpp"
 #include "services/hid.hpp"
 
 class MainWindow : public QMainWindow {
@@ -20,9 +21,7 @@ class MainWindow : public QMainWindow {
 
   private:
 	// Types of messages we might send from the GUI thread to the emulator thread
-	enum class MessageType {
+	enum class MessageType { LoadROM, Reset, Pause, Resume, TogglePause, DumpRomFS, PressKey, ReleaseKey, LoadLuaScript };
-		LoadROM, Reset, Pause, Resume, TogglePause, DumpRomFS, PressKey, ReleaseKey
-	};
 
 	// Tagged union representing our message queue messages
 	struct EmulatorMessage {
@@ -36,6 +35,10 @@ class MainWindow : public QMainWindow {
 			struct {
 				u32 key;
 			} key;
+
+			struct {
+				std::string* str;
+			} string;
 		};
 	};
 
@@ -51,12 +54,15 @@ class MainWindow : public QMainWindow {
 	ScreenWidget screen;
 	AboutWindow* aboutWindow;
 	ConfigWindow* configWindow;
+	TextEditorWindow* luaEditor;
 	QMenuBar* menuBar = nullptr;
 
 	void swapEmuBuffer();
 	void emuThreadMainLoop();
+	void selectLuaFile();
 	void selectROM();
 	void dumpRomFS();
+	void openLuaEditor();
 	void showAboutMenu();
 	void sendMessage(const EmulatorMessage& message);
 	void dispatchMessage(const EmulatorMessage& message);
@@ -71,4 +77,5 @@ class MainWindow : public QMainWindow {
 
 	void keyPressEvent(QKeyEvent* event) override;
 	void keyReleaseEvent(QKeyEvent* event) override;
+	void loadLuaScript(const std::string& code);
 };

include/panda_qt/text_editor.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <QApplication>
+#include <QDialog>
+#include <QWidget>
+#include <string>
+
+#include "zep.h"
+#include "zep/mode_repl.h"
+#include "zep/regress.h"
+
+class TextEditorWindow : public QDialog {
+	Q_OBJECT
+
+  private:
+	Zep::ZepWidget_Qt zepWidget;
+	Zep::IZepReplProvider replProvider;
+	static constexpr float fontSize = 14.0f;
+
+  public:
+	TextEditorWindow(QWidget* parent, const std::string& filename, const std::string& initialText);
+	void setText(const std::string& text) { zepWidget.GetEditor().GetMRUBuffer()->SetText(text); }
+};

src/core/services/apt.cpp

@@ -2,6 +2,7 @@
 #include "ipc.hpp"
 #include "kernel.hpp"
 
+#include <algorithm>
 #include <vector>
 
 namespace APTCommands {
@@ -311,13 +312,15 @@ void APTService::setApplicationCpuTimeLimit(u32 messagePointer) {
 	log("APT::SetApplicationCpuTimeLimit (percentage = %d%%)\n", percentage);
 
 	if (percentage < 5 || percentage > 89 || fixed != 1) {
-		Helpers::panic("Invalid parameters passed to APT::SetApplicationCpuTimeLimit");
+		Helpers::warn("Invalid parameter passed to APT::SetApplicationCpuTimeLimit: (percentage, fixed) = (%d, %d)\n", percentage, fixed);
-	} else {
+		// TODO: Does the clamp operation happen? Verify with getApplicationCpuTimeLimit on hardware
+		percentage = std::clamp<u32>(percentage, 5, 89);
+	}
+
 	mem.write32(messagePointer, IPC::responseHeader(0x4F, 1, 0));
 	mem.write32(messagePointer + 4, Result::Success);
 	cpuTimeLimit = percentage;
 }
-}
 
 void APTService::getApplicationCpuTimeLimit(u32 messagePointer) {
 	log("APT::GetApplicationCpuTimeLimit\n");

src/lua.cpp

@@ -51,6 +51,31 @@ void LuaManager::loadFile(const char* path) {
 	}
 }
 
+void LuaManager::loadString(const std::string& code) {
+	// Initialize Lua if it has not been initialized
+	if (!initialized) {
+		initialize();
+	}
+
+	// If init failed, don't execute
+	if (!initialized) {
+		printf("Lua initialization failed, file won't run\n");
+		haveScript = false;
+
+		return;
+	}
+
+	int status = luaL_loadstring(L, code.c_str());  // load Lua script
+	int ret = lua_pcall(L, 0, 0, 0);                // tell Lua to run the script
+
+	if (ret != 0) {
+		haveScript = false;
+		fprintf(stderr, "%s\n", lua_tostring(L, -1));  // tell us what mistake we made
+	} else {
+		haveScript = true;
+	}
+}
+
 void LuaManager::signalEventInternal(LuaEvent e) {
 	lua_getglobal(L, "eventHandler"); // We want to call the event handler
 	lua_pushnumber(L, static_cast<int>(e)); // Push event type

src/panda_qt/main_window.cpp

@@ -2,6 +2,7 @@
 
 #include <QFileDialog>
 #include <cstdio>
+#include <fstream>
 
 MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent), screen(this) {
 	setWindowTitle("Alber");
@@ -23,8 +24,10 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	auto aboutMenu = menuBar->addMenu(tr("About"));
 
 	// Create and bind actions for them
-	auto pandaAction = fileMenu->addAction(tr("Load game"));
+	auto loadGameAction = fileMenu->addAction(tr("Load game"));
-	connect(pandaAction, &QAction::triggered, this, &MainWindow::selectROM);
+	auto loadLuaAction = fileMenu->addAction(tr("Load Lua script"));
+	connect(loadGameAction, &QAction::triggered, this, &MainWindow::selectROM);
+	connect(loadLuaAction, &QAction::triggered, this, &MainWindow::selectLuaFile);
 
 	auto pauseAction = emulationMenu->addAction(tr("Pause"));
 	auto resumeAction = emulationMenu->addAction(tr("Resume"));
@@ -36,7 +39,9 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	connect(configureAction, &QAction::triggered, this, [this]() { configWindow->show(); });
 
 	auto dumpRomFSAction = toolsMenu->addAction(tr("Dump RomFS"));
+	auto luaEditorAction = toolsMenu->addAction(tr("Open Lua Editor"));
 	connect(dumpRomFSAction, &QAction::triggered, this, &MainWindow::dumpRomFS);
+	connect(luaEditorAction, &QAction::triggered, this, &MainWindow::openLuaEditor);
 
 	auto aboutAction = aboutMenu->addAction(tr("About Panda3DS"));
 	connect(aboutAction, &QAction::triggered, this, &MainWindow::showAboutMenu);
@@ -44,6 +49,7 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	// Set up misc objects
 	aboutWindow = new AboutWindow(nullptr);
 	configWindow = new ConfigWindow(this);
+	luaEditor = new TextEditorWindow(this, "script.lua", "");
 
 	emu = new Emulator();
 	emu->setOutputSize(screen.surfaceWidth, screen.surfaceHeight);
@@ -121,6 +127,34 @@ void MainWindow::selectROM() {
 	}
 }
 
+void MainWindow::selectLuaFile() {
+	auto path = QFileDialog::getOpenFileName(this, tr("Select Lua script to load"), "", tr("Lua scripts (*.lua *.txt)"));
+
+	if (!path.isEmpty()) {
+		std::ifstream file(std::filesystem::path(path.toStdU16String()), std::ios::in);
+
+		if (file.fail()) {
+			printf("Failed to load selected lua file\n");
+			return;
+		}
+
+		// Read whole file into an std::string string
+		// Get file size, preallocate std::string to avoid furthermemory allocations
+		std::string code;
+		file.seekg(0, std::ios::end);
+		code.resize(file.tellg());
+
+		// Rewind and read the whole file
+		file.seekg(0, std::ios::beg);
+		file.read(&code[0], code.size());
+		file.close();
+
+		loadLuaScript(code);
+		// Copy the Lua script to the Lua editor
+		luaEditor->setText(code);
+	}
+}
+
 // Cleanup when the main window closes
 MainWindow::~MainWindow() {
 	appRunning = false; // Set our running atomic to false in order to make the emulator thread stop, and join it
@@ -133,6 +167,7 @@ MainWindow::~MainWindow() {
 	delete menuBar;
 	delete aboutWindow;
 	delete configWindow;
+	delete luaEditor;
 }
 
 // Send a message to the emulator thread. Lock the mutex and just push back to the vector.
@@ -181,6 +216,8 @@ void MainWindow::showAboutMenu() {
 	about.exec();
 }
 
+void MainWindow::openLuaEditor() { luaEditor->show(); }
+
 void MainWindow::dispatchMessage(const EmulatorMessage& message) {
 	switch (message.type) {
 		case MessageType::LoadROM:
@@ -189,6 +226,11 @@ void MainWindow::dispatchMessage(const EmulatorMessage& message) {
 			delete message.path.p;
 			break;
 
+		case MessageType::LoadLuaScript:
+			emu->getLua().loadString(*message.string.str);
+			delete message.string.str;
+			break;
+
 		case MessageType::Pause: emu->pause(); break;
 		case MessageType::Resume: emu->resume(); break;
 		case MessageType::TogglePause: emu->togglePause(); break;
@@ -253,3 +295,11 @@ void MainWindow::keyReleaseEvent(QKeyEvent* event) {
 		case Qt::Key_Backspace: releaseKey(HID::Keys::Select); break;
 	}
 }
+
+void MainWindow::loadLuaScript(const std::string& code) {
+	EmulatorMessage message{.type = MessageType::LoadLuaScript};
+
+	// Make a copy of the code on the heap to send via the message queue
+	message.string.str = new std::string(code);
+	sendMessage(message);
+}

src/panda_qt/text_editor.cpp

@@ -0,0 +1,44 @@
+#include "panda_qt/text_editor.hpp"
+
+#include <QPushButton>
+#include <QVBoxLayout>
+
+#include "panda_qt/main_window.hpp"
+
+using namespace Zep;
+
+TextEditorWindow::TextEditorWindow(QWidget* parent, const std::string& filename, const std::string& initialText)
+	: QDialog(parent), zepWidget(this, qApp->applicationDirPath().toStdString(), fontSize) {
+	resize(600, 600);
+
+	// Register our extensions
+	ZepRegressExCommand::Register(zepWidget.GetEditor());
+	ZepReplExCommand::Register(zepWidget.GetEditor(), &replProvider);
+
+	// Default to standard mode instead of vim mode, initialize text box
+	zepWidget.GetEditor().SetGlobalMode(Zep::ZepMode_Standard::StaticName());
+	zepWidget.GetEditor().InitWithText(filename, initialText);
+
+	// Layout for widgets
+	QVBoxLayout* mainLayout = new QVBoxLayout();
+	setLayout(mainLayout);
+
+	QPushButton* button = new QPushButton(tr("Load script"), this);
+	button->setFixedSize(100, 20);
+
+	// When the Load Script button is pressed, send the current text to the MainWindow, which will upload it to the emulator's lua object
+	connect(button, &QPushButton::pressed, this, [this]() {
+		if (parentWidget()) {
+			auto buffer = zepWidget.GetEditor().GetMRUBuffer();
+			const std::string text = buffer->GetBufferText(buffer->Begin(), buffer->End());
+
+			static_cast<MainWindow*>(parentWidget())->loadLuaScript(text);
+		} else {
+			// This should be unreachable, only here for safety purposes
+			printf("Text editor does not have any parent widget, click doesn't work :(\n");
+		}
+	});
+
+	mainLayout->addWidget(button);
+	mainLayout->addWidget(&zepWidget);
+}

src/panda_qt/zep.cpp

@@ -0,0 +1,2 @@
+#define ZEP_SINGLE_HEADER_BUILD
+#include "zep.h"

third_party/zep

@@ -0,0 +1 @@
+Subproject commit 75406e1c854b9fa6ede697d6165664e0e11b09ff