update changelog

## Link to GitHub Issue, if one exists
Fixes #364 

## Description of change
The game attempts to hook raw input, but raw input API can only be used
by one window per process. Hook `RegisterRawInputDevices` and prevent
the game from registration for raw input notifications.

## Testing
Tested that HID keyboard works with `Bind` option.

src/spice2x/changelog.txt

@@ -1,3 +1,6 @@
+09/17/2025 [spice2x]
+    Polaris Chord I/O fixes, language shim
+
 09/16/2025 [spice2x]
     Add Polaris Chord support
     Tweak ImGUI theme

src/spice2x/games/pc/bi2x_hook.cpp

@@ -246,52 +246,66 @@ namespace games::pc {
         memset(o_DevStatus, 0x00, sizeof(AIO_IOB2_BI2X_AC1__DEVSTATUS));
 
         auto &buttons = get_buttons();
-        o_DevStatus->Input.CN8_8 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Test]);
+        o_DevStatus->Input.CN8_8 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Test]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN8_9 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Service]);
+        o_DevStatus->Input.CN8_9 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Service]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN8_10 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::CoinMech]);
+        o_DevStatus->Input.CN8_10 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::CoinMech]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN15_10 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Headphone]);
+        o_DevStatus->Input.CN15_10 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Headphone]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN15_12 = 0xFF; // Recorder off
+        o_DevStatus->Input.CN15_12 = 0xFF; // Recorder off; present in I/O test menu but unused in game
 
-        o_DevStatus->Input.CN12_11 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button1]);
+        o_DevStatus->Input.CN12_11 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button1]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_12 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button2]);
+        o_DevStatus->Input.CN12_12 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button2]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_13 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button3]);
+        o_DevStatus->Input.CN12_13 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button3]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_14 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button4]);
+        o_DevStatus->Input.CN12_14 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button4]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_15 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button5]);
+        o_DevStatus->Input.CN12_15 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button5]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_16 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button6]);
+        o_DevStatus->Input.CN12_16 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button6]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_17 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button7]);
+        o_DevStatus->Input.CN12_17 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button7]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_18 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button8]);
+        o_DevStatus->Input.CN12_18 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button8]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_19 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button9]);
+        o_DevStatus->Input.CN12_19 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button9]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_20 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button10]);
+        o_DevStatus->Input.CN12_20 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button10]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_21 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button11]);
+        o_DevStatus->Input.CN12_21 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button11]) ? 0 : 0xFF;
-        o_DevStatus->Input.CN12_22 = !GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button12]);
+        o_DevStatus->Input.CN12_22 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Button12]) ? 0 : 0xFF;
 
         auto &analogs = get_analogs();
+
+        // FADER-L
+        float val = 0.f;
         if (analogs[Analogs::FaderL].isSet()) {
-            float val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderL]) - 0.5f) * 2;
+            val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderL]) - 0.5f) * 2;
-            o_DevStatus->Input.CN15_7 = val < 0.2f;
-            o_DevStatus->Input.CN15_6 = val > -0.85f && val < 0.35f;
-            o_DevStatus->Input.CN15_5 = val > -0.6f && val < 0.6f;
-            o_DevStatus->Input.CN15_4 = val > -0.35f && val < 0.85f;
-            o_DevStatus->Input.CN15_3 = val > -0.2f;
-        } else {
-            o_DevStatus->Input.CN15_7 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left]);
-            o_DevStatus->Input.CN15_3 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right]);
-            o_DevStatus->Input.CN15_5 = !o_DevStatus->Input.CN15_7 && !o_DevStatus->Input.CN15_3;
         }
+        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left]) &&
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right])) {
+            val = 0.f;
+        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Left])) {
+            val = -1.0f;
+        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderL_Right])) {
+            val = +1.0f;
+        }
+        o_DevStatus->Input.CN15_7 = (val < 0.2f) ? 0xFF : 0;
+        o_DevStatus->Input.CN15_6 = (val > -0.85f && val < 0.35f) ? 0xFF : 0;
+        o_DevStatus->Input.CN15_5 = (val > -0.6f && val < 0.6f) ? 0xFF : 0;
+        o_DevStatus->Input.CN15_4 = (val > -0.35f && val < 0.85f) ? 0xFF : 0;
+        o_DevStatus->Input.CN15_3 = (val > -0.2f) ? 0xFF : 0;
 
+        // FADER-R
+        val = 0.f;
         if (analogs[Analogs::FaderR].isSet()) {
-            float val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderR]) - 0.5f) * 2;
+            val = (GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::FaderR]) - 0.5f) * 2;
-            o_DevStatus->Input.CN11_20 = val < 0.2f;
-            o_DevStatus->Input.CN11_19 = val > -0.85f && val < 0.35f;
-            o_DevStatus->Input.CN9_10 = val > -0.6f && val < 0.6f;
-            o_DevStatus->Input.CN9_9 = val > -0.35f && val < 0.85f;
-            o_DevStatus->Input.CN9_8 = val > -0.2f;
-        } else {
-            o_DevStatus->Input.CN11_20 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left]);
-            o_DevStatus->Input.CN9_8 = GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right]);
-            o_DevStatus->Input.CN9_10 = !o_DevStatus->Input.CN11_20 && !o_DevStatus->Input.CN9_8;
         }
+        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left]) &&
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right])) {
+            val = 0.f;
+        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Left])) {
+            val = -1.0f;
+        } else if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::FaderR_Right])) {
+            val = +1.0f;
+        }
+        o_DevStatus->Input.CN11_20 = (val < 0.2f) ? 0xFF : 0;
+        o_DevStatus->Input.CN11_19 = (val > -0.85f && val < 0.35f) ? 0xFF : 0;
+        o_DevStatus->Input.CN9_10 = (val > -0.6f && val < 0.6f) ? 0xFF : 0;
+        o_DevStatus->Input.CN9_9 = (val > -0.35f && val < 0.85f) ? 0xFF : 0;
+        o_DevStatus->Input.CN9_8 = (val > -0.2f) ? 0xFF : 0;
 
+        // coin
         o_DevStatus->Input.Coin1Count = eamuse_coin_get_stock();
     }
 

src/spice2x/games/pc/pc.cpp

@@ -3,12 +3,15 @@
 #include <format>
 
 #include "bi2x_hook.h"
+#include "util/detour.h"
+#include "util/logging.h"
 #include "util/fileutils.h"
 #include "util/unity_player.h"
 #include "util/execexe.h"
 #include "acioemu/handle.h"
 #include "misc/wintouchemu.h"
 #include "hooks/graphics/graphics.h"
+#include "rawinput/rawinput.h"
 
 namespace games::pc {
     std::string PC_INJECT_ARGS = "";
@@ -17,6 +20,24 @@ namespace games::pc {
     static acioemu::ACIOHandle *acioHandle = nullptr;
     static std::wstring portName = L"COM1";
 
+    static decltype(RegisterRawInputDevices) *RegisterRawInputDevices_orig = nullptr;
+
+    static BOOL WINAPI RegisterRawInputDevices_hook(PCRAWINPUTDEVICE pRawInputDevices, UINT uiNumDevices, UINT cbSize) {
+
+        // if the caller is spice itself, then pass through.
+        if (pRawInputDevices &&
+            (uiNumDevices > 0) &&
+            (pRawInputDevices[0].hwndTarget == RI_MGR->input_hwnd)) {
+            
+            return RegisterRawInputDevices_orig(pRawInputDevices, uiNumDevices, cbSize);
+        }
+        
+        // otherwise, it must be the game; prevent the game from registering for raw input
+        // and hijacking WM_INPUT messages.
+        SetLastError(0xDEADBEEF);
+        return FALSE;
+    }
+
     void PCGame::attach() {
         Game::attach();
 
@@ -39,6 +60,10 @@ namespace games::pc {
             }
         });
 
+        const auto user32Dll = "user32.dll";
+        detour::trampoline_try(user32Dll, "RegisterRawInputDevices",
+                               RegisterRawInputDevices_hook, &RegisterRawInputDevices_orig);
+
 
         if (GRAPHICS_SHOW_CURSOR) {
             unity_utils::force_show_cursor(true);

src/spice2x/hooks/lang.cpp

@@ -18,6 +18,7 @@ constexpr UINT CODEPAGE_SHIFT_JIS = 932;
 static decltype(GetACP) *GetACP_orig = nullptr;
 static decltype(GetOEMCP) *GetOEMCP_orig = nullptr;
 static decltype(MultiByteToWideChar) *MultiByteToWideChar_orig = nullptr;
+static decltype(GetLocaleInfoEx) *GetLocaleInfoEx_orig = nullptr;
 
 #ifdef SPICE64
 static decltype(GetSystemDefaultLCID) *GetSystemDefaultLCID_orig = nullptr;
@@ -119,6 +120,48 @@ static int WINAPI MultiByteToWideChar_hook(
             cchWideChar);
 }
 
+static int WINAPI GetLocaleInfoEx_hook (
+        LPCWSTR lpLocaleName,
+        LCTYPE LCType,
+        LPWSTR lpLCData,
+        int cchData)
+{
+
+#if 0
+    if (lpLocaleName == LOCALE_NAME_INVARIANT) {
+        log_misc("hooks::lang", "GetLocaleInfoEx_hook hit (LOCALE_NAME_INVARIANT), {}, {}", LCType, cchData);
+    } else if (lpLocaleName == LOCALE_NAME_SYSTEM_DEFAULT) {
+        log_misc("hooks::lang", "GetLocaleInfoEx_hook hit (LOCALE_NAME_SYSTEM_DEFAULT), {}, {}", LCType, cchData);
+    } else if (lpLocaleName == LOCALE_NAME_USER_DEFAULT) {
+        log_misc("hooks::lang", "GetLocaleInfoEx_hook hit (LOCALE_NAME_USER_DEFAULT), {}, {}", LCType, cchData);
+    } else {
+        log_misc("hooks::lang", "GetLocaleInfoEx_hook hit ({}), {}, {}", ws2s(lpLocaleName), LCType, cchData);
+    }
+#endif
+
+    if (lpLocaleName == LOCALE_NAME_USER_DEFAULT &&
+        LCType == LOCALE_SISO639LANGNAME &&
+        lpLCData != NULL &&
+        cchData >= 3) {
+        log_misc("hooks::lang",
+                 "GetLocaleInfoEx_hook hit (LOCALE_NAME_USER_DEFAULT / LOCALE_SISO639LANGNAME), return `ja`");
+        wcscpy(lpLCData, L"ja");
+        return 3;
+    }
+
+    if (lpLocaleName == LOCALE_NAME_USER_DEFAULT &&
+        LCType == LOCALE_SISO3166CTRYNAME &&
+        lpLCData != NULL &&
+        cchData >= 3) {
+        log_misc("hooks::lang",
+                 "GetLocaleInfoEx_hook hit (LOCALE_NAME_USER_DEFAULT / LOCALE_SISO3166CTRYNAME), return `JP`");
+        wcscpy(lpLCData, L"JP");
+        return 3;
+    }
+
+    return GetLocaleInfoEx_orig(lpLocaleName, LCType, lpLCData, cchData);
+}
+
 void hooks::lang::early_init() {
     log_info("hooks::lang", "early initialization");
 
@@ -138,6 +181,14 @@ void hooks::lang::early_init() {
     }
 #endif
 
+    if (avs::game::is_model("XIF")) {
+        log_info("hooks::lang", "hooking GetLocaleInfoEx");
+        detour::trampoline_try(
+            "kernel32.dll",
+            "GetLocaleInfoEx",
+            GetLocaleInfoEx_hook,
+            &GetLocaleInfoEx_orig);
+    }
 }
 
 void hooks::lang::init() {

src/spice2x/rawinput/rawinput.h

@@ -54,7 +54,6 @@ namespace rawinput {
 
         HotplugManager *hotplug;
         std::vector<Device> devices;
-        HWND input_hwnd = nullptr;
         WNDCLASSEX input_hwnd_class {};
         std::thread *input_thread = nullptr;
         std::thread *flush_thread = nullptr;
@@ -91,6 +90,8 @@ namespace rawinput {
 
     public:
 
+        HWND input_hwnd = nullptr;
+
         RawInputManager();
         ~RawInputManager();