From 9482578fbb2a942579558b06a965d3a615cbd29c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Sun, 13 Nov 2022 23:16:09 +0100
Subject: [PATCH] Twinbee Portable: Add config flag to avoid the system
 languages the game doesn't work with

---
 Core/Compatibility.cpp  | 1 +
 Core/Compatibility.h    | 1 +
 Core/HLE/sceImpose.cpp  | 6 ++++++
 Core/HLE/sceUtility.cpp | 5 +++++
 assets/compat.ini       | 6 ++++++
 5 files changed, 19 insertions(+)

diff --git a/Core/Compatibility.cpp b/Core/Compatibility.cpp
index b09eb67c14b8..d3d65861e006 100644
--- a/Core/Compatibility.cpp
+++ b/Core/Compatibility.cpp
@@ -119,6 +119,7 @@ void Compatibility::CheckSettings(IniFile &iniFile, const std::string &gameID) {
 	CheckSetting(iniFile, gameID, "AllowDownloadCLUT", &flags_.AllowDownloadCLUT);
 	CheckSetting(iniFile, gameID, "NearestFilteringOnFramebufferCreate", &flags_.NearestFilteringOnFramebufferCreate);
 	CheckSetting(iniFile, gameID, "SecondaryTextureCache", &flags_.SecondaryTextureCache);
+	CheckSetting(iniFile, gameID, "EnglishOrJapaneseOnly", &flags_.EnglishOrJapaneseOnly);
 }
 
 void Compatibility::CheckVRSettings(IniFile &iniFile, const std::string &gameID) {
diff --git a/Core/Compatibility.h b/Core/Compatibility.h
index 86d139a5361b..6755afe7a94a 100644
--- a/Core/Compatibility.h
+++ b/Core/Compatibility.h
@@ -90,6 +90,7 @@ struct CompatFlags {
 	bool AllowDownloadCLUT;
 	bool NearestFilteringOnFramebufferCreate;
 	bool SecondaryTextureCache;
+	bool EnglishOrJapaneseOnly;
 };
 
 struct VRCompat {
diff --git a/Core/HLE/sceImpose.cpp b/Core/HLE/sceImpose.cpp
index 086cc83c1736..bd5f654bc20c 100644
--- a/Core/HLE/sceImpose.cpp
+++ b/Core/HLE/sceImpose.cpp
@@ -24,6 +24,7 @@
 #include "Core/MIPS/MIPS.h"
 #include "Core/Config.h"
 #include "Core/MemMap.h"
+#include "Core/System.h"
 
 const int PSP_UMD_POPUP_DISABLE = 0;
 const int PSP_UMD_POPUP_ENABLE = 1;
@@ -40,6 +41,11 @@ static u32 backlightOffTime;
 void __ImposeInit()
 {
 	language = g_Config.iLanguage;
+	if (PSP_CoreParameter().compat.flags().EnglishOrJapaneseOnly) {
+		if (language != PSP_SYSTEMPARAM_LANGUAGE_ENGLISH && language != PSP_SYSTEMPARAM_LANGUAGE_JAPANESE) {
+			language = PSP_SYSTEMPARAM_LANGUAGE_ENGLISH;
+		}
+	}
 	buttonValue = g_Config.iButtonPreference;
 	umdPopup = PSP_UMD_POPUP_DISABLE;
 	backlightOffTime = 0;
diff --git a/Core/HLE/sceUtility.cpp b/Core/HLE/sceUtility.cpp
index b205ed956d0a..35db8740fadd 100644
--- a/Core/HLE/sceUtility.cpp
+++ b/Core/HLE/sceUtility.cpp
@@ -886,6 +886,11 @@ static u32 sceUtilityGetSystemParamInt(u32 id, u32 destaddr)
 		break;
 	case PSP_SYSTEMPARAM_ID_INT_LANGUAGE:
 		param = g_Config.iLanguage;
+		if (PSP_CoreParameter().compat.flags().EnglishOrJapaneseOnly) {
+			if (param != PSP_SYSTEMPARAM_LANGUAGE_ENGLISH && param != PSP_SYSTEMPARAM_LANGUAGE_JAPANESE) {
+				param = PSP_SYSTEMPARAM_LANGUAGE_ENGLISH;
+			}
+		}
 		break;
 	case PSP_SYSTEMPARAM_ID_INT_BUTTON_PREFERENCE:
 		param = g_Config.iButtonPreference;
diff --git a/assets/compat.ini b/assets/compat.ini
index 7a1ac5d79f95..425164cf589f 100644
--- a/assets/compat.ini
+++ b/assets/compat.ini
@@ -1264,3 +1264,9 @@ ULES00850 = true
 ULUS10297 = true
 ULJM05516 = true
 NPJH50408 = true
+
+[EnglishOrJapaneseOnly]
+# Twinbee Portable, see issue #16382
+ULAS42089 = true
+ULJM05221 = true
+ULJM05323 = true
\ No newline at end of file