Allow applying splas and sound binary patch

arm9/src/main.c

@@ -16,6 +16,7 @@ static bool retailConsole = true;
 static UNLAUNCH_VERSION foundUnlaunchInstallerVersion = INVALID;
 static bool disableAllPatches = false;
 static bool enableSoundAndSplash = false;
+static const char* splashSoundBinaryPatchPath = NULL;
 bool charging = false;
 u8 batteryLevel = 0;
 
@@ -74,7 +75,7 @@ static int mainMenu(int cursor)
 						(foundUnlaunchInstallerVersion == v1_9 || foundUnlaunchInstallerVersion == v2_0) ? 047 : 037,
 						disableAllPatches ? "On" : "Off");
 	sprintf(soundPatchesStr, "\x1B[%02omEnable sound and splash: %s",
-							(foundUnlaunchInstallerVersion == v2_0 && !disableAllPatches) ? 047 : 037,
+							(foundUnlaunchInstallerVersion == v2_0 && !disableAllPatches && splashSoundBinaryPatchPath != NULL) ? 047 : 037,
 							enableSoundAndSplash ? "On" : "Off");
 	sprintf(installStr, "\x1B[%02omInstall unlaunch", (foundUnlaunchInstallerVersion != INVALID && !unlaunchFound) ? 047 : 037);
 	addMenuItem(m, uninstallStr, NULL, 0);
@@ -177,6 +178,13 @@ int main(int argc, char **argv)
 						"Installing unlaunch won't be possible.");
 		}
 	}
+	
+	if(fileExists("nitro:/unlaunch-patch.bin"))
+	{
+		splashSoundBinaryPatchPath = "nitro:/unlaunch-patch.bin";
+	} else if (fileExists("sd:/unlaunch-patch.bin")) {
+		splashSoundBinaryPatchPath = "sd:/unlaunch-patch.bin";
+	}
 
 	//check for unlaunch and region
 	u8 region = 0xff;
@@ -257,17 +265,21 @@ int main(int argc, char **argv)
 				break;
 				
 			case MAIN_MENU_SOUND_SPLASH_PATCHES:
-				if(foundUnlaunchInstallerVersion == v2_0 && !disableAllPatches) {
+				if(foundUnlaunchInstallerVersion == v2_0 && !disableAllPatches && splashSoundBinaryPatchPath != NULL) {
 					enableSoundAndSplash = !enableSoundAndSplash;
 				}
 				break;
 
 			case MAIN_MENU_SAFE_UNLAUNCH_INSTALL:
-				if (foundUnlaunchInstallerVersion != INVALID && (choiceBox("Install unlaunch?") == YES)
+				if (!unlaunchFound && foundUnlaunchInstallerVersion != INVALID && (choiceBox("Install unlaunch?") == YES)
 					&& (retailLauncherTmdPresentAndToBePatched || (choiceBox("There doesn't seem to be a launcher.tmd\nfile matcing the hwinfo file\nKeep installing?") == YES))
 					&& nandio_unlock_writing())
 				{
-					if(installUnlaunch(retailConsole, retailLauncherTmdPresentAndToBePatched ? retailLauncherTmdPath : NULL, disableAllPatches, enableSoundAndSplash))
+					printf("Installing\n");
+					if(installUnlaunch(retailConsole,
+										retailLauncherTmdPresentAndToBePatched ? retailLauncherTmdPath : NULL,
+										disableAllPatches,
+										enableSoundAndSplash ? splashSoundBinaryPatchPath : NULL))
 					{
 						messageBox("Install successful!\n");
 						unlaunchFound = true;

arm9/src/unlaunch.cpp

@@ -402,7 +402,7 @@ static bool verifyUnlaunchInstaller(void)
 	return true;
 }
 
-static bool patchUnlaunchInstaller(bool disableAllPatches, bool enableSoundAndSplash)
+static bool patchUnlaunchInstaller(bool disableAllPatches, const char* splashSoundBinaryPatchPath)
 {
 	if(disableAllPatches)
 	{
@@ -416,9 +416,39 @@ static bool patchUnlaunchInstaller(bool disableAllPatches, bool enableSoundAndSp
 		const char newID[]{'S','A','N'};
 		memcpy((unlaunchInstallerBuffer + 520) + patchOffset, newID, 3);
 	}
-	else if (enableSoundAndSplash)
+	else if (splashSoundBinaryPatchPath)
 	{
-		
+		if(installerVersion != v2_0)
+		{
+			messageBox("\x1B[31mError:\x1B[33m The splash and sound patch is\n"
+						"only for unlaunch 2.0\n");
+			return false;
+		}
+		static constexpr auto patchOffset = 0x8580;
+		static constexpr auto patchSectionSize = 0x67FD;
+		auto* patch = fopen(splashSoundBinaryPatchPath, "rb");
+		if(!patch)
+		{
+			messageBox("\x1B[31mError:\x1B[33m Failed to open the splash and\n"
+						"sound patch is.\n");
+			return false;
+		}
+		auto patchSize = getFileSize(patch);
+		if(patchSize > patchSectionSize)
+		{
+			messageBox("\x1B[31mError:\x1B[33m Splash and sound patch is too\n"
+						"big.\n");
+			fclose(patch);
+			return false;
+		}
+		if (fread((unlaunchInstallerBuffer + 520) + patchOffset, 1, patchSize, patch) != patchSize)
+		{
+			messageBox("\x1B[31mError:\x1B[33m Failed to read splash and sound\n"
+						"patch.\n");
+			fclose(patch);
+			return false;
+		}
+		fclose(patch);
 	}
 	return true;
 }
@@ -432,9 +462,9 @@ UNLAUNCH_VERSION loadUnlaunchInstaller(const char* path)
 	return INVALID;
 }
 
-bool installUnlaunch(bool retailConsole, const char* retailLauncherTmdPath, bool disableAllPatches, bool enableSoundAndSplash)
+bool installUnlaunch(bool retailConsole, const char* retailLauncherTmdPath, bool disableAllPatches, const char* splashSoundBinaryPatchPath)
 {
-	if (installerVersion == INVALID || !patchUnlaunchInstaller(disableAllPatches, enableSoundAndSplash))
+	if (installerVersion == INVALID || !patchUnlaunchInstaller(disableAllPatches, splashSoundBinaryPatchPath))
 		return false;
 
 	// Treat protos differently

arm9/src/unlaunch.h

@@ -14,7 +14,7 @@ typedef enum UNLAUNCH_VERSION {
 } UNLAUNCH_VERSION;
 
 bool uninstallUnlaunch(bool notProto, bool hasHNAABackup, const char* retailLauncherTmdPath);
-bool installUnlaunch(bool retailConsole, const char* retailLauncherTmdPath, bool disableAllPatches, bool enableSoundAndSplash);
+bool installUnlaunch(bool retailConsole, const char* retailLauncherTmdPath, bool disableAllPatches, const char* splashSoundBinaryPatchPath);
 
 bool isLauncherTmdPatched(const char* path);