From cf35491fb1b542910a5d068e05c39f4b32d14721 Mon Sep 17 00:00:00 2001
From: wheremyfoodat <gponiris2004@gmail.com>
Date: Sun, 11 Jun 2023 13:28:21 +0300
Subject: [PATCH] [APT] Stub APT::PreloadLibraryApplet

---
 include/services/apt.hpp  |  1 +
 src/core/services/apt.cpp | 12 +++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/services/apt.hpp b/include/services/apt.hpp
index 819738c6..33fa8297 100644
--- a/include/services/apt.hpp
+++ b/include/services/apt.hpp
@@ -38,6 +38,7 @@ class APTService {
 	void initialize(u32 messagePointer);
 	void inquireNotification(u32 messagePointer);
 	void notifyToWait(u32 messagePointer);
+	void preloadLibraryApplet(u32 messagePointer);
 	void receiveParameter(u32 messagePointer);
 	void replySleepQuery(u32 messagePointer);
 	void setApplicationCpuTimeLimit(u32 messagePointer);
diff --git a/src/core/services/apt.cpp b/src/core/services/apt.cpp
index 0ee0a16a..637a922f 100644
--- a/src/core/services/apt.cpp
+++ b/src/core/services/apt.cpp
@@ -10,6 +10,7 @@ namespace APTCommands {
 		InquireNotification = 0x000B0040,
 		ReceiveParameter = 0x000D0080,
 		GlanceParameter = 0x000E0080,
+		PreloadLibraryApplet = 0x00160040,
 		ReplySleepQuery = 0x003E0080,
 		NotifyToWait = 0x00430040,
 		GetSharedFont = 0x00440000,
@@ -80,6 +81,7 @@ void APTService::handleSyncRequest(u32 messagePointer) {
 		case APTCommands::GetWirelessRebootInfo: getWirelessRebootInfo(messagePointer); break;
 		case APTCommands::GlanceParameter: glanceParameter(messagePointer); break;
 		case APTCommands::NotifyToWait: notifyToWait(messagePointer); break;
+		case APTCommands::PreloadLibraryApplet: preloadLibraryApplet(messagePointer); break;
 		case APTCommands::ReceiveParameter: [[likely]] receiveParameter(messagePointer); break;
 		case APTCommands::ReplySleepQuery: replySleepQuery(messagePointer); break;
 		case APTCommands::SetApplicationCpuTimeLimit: setApplicationCpuTimeLimit(messagePointer); break;
@@ -95,12 +97,20 @@ void APTService::appletUtility(u32 messagePointer) {
 	u32 outputSize = mem.read32(messagePointer + 12);
 	u32 inputPointer = mem.read32(messagePointer + 20);
 
-	log("APT::AppletUtility(utility = %d, input size = %x, output size = %x, inputPointer = %08X)\n", utility, inputSize,
+	log("APT::AppletUtility(utility = %d, input size = %x, output size = %x, inputPointer = %08X) (Stubbed)\n", utility, inputSize,
 		outputSize, inputPointer);
 	mem.write32(messagePointer, IPC::responseHeader(0x4B, 2, 2));
 	mem.write32(messagePointer + 4, Result::Success);
 }
 
+void APTService::preloadLibraryApplet(u32 messagePointer) {
+	const u32 appID = mem.read32(messagePointer + 4);
+	log("APT::PreloadLibraryApplet (app ID = %d) (stubbed)\n", appID);
+
+	mem.write32(messagePointer, IPC::responseHeader(0x16, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
 void APTService::checkNew3DS(u32 messagePointer) {
 	log("APT::CheckNew3DS\n");
 	mem.write32(messagePointer, IPC::responseHeader(0x102, 2, 0));