Fix wording in CONTRIBUTING.md for clarity

## Link to GitHub Issue, if one exists
n/a

## Description of change
Apply SOCD cleaner algorithm to deal with the case where both
counter-clockwise and clockwise buttons are pressed at the same time.

In SDVX, default algorithm is to prefer the most recently pressed
direction. This is better for dealing with slams in rapid succession,
for example, as you don't have to completely let go of one direction to
hit the other now.

In IIDX, default algorithm is neutral (same behavior as before). Using
last or first algorithm results in double scratches which means you'll
likely end up with an excessive poor after hitting a scratch, so neutral
is actually beneficial. Besides, if you are serious about playing on the
keyboard, you should be using `TT +/-` and `TT +/- Alternate`.

## Testing
Tested SDVX 3, EG (old cab), EG valk cab modes, IIDX 24, 27, 33
(tdj/ldj)

CONTRIBUTING.md

@@ -1,8 +1,7 @@
 ## Contributing
 Baseline rules for patch submissions are as follows. Any patches violating the rules below will not be accepted.
 
-### New as of March 2025
-Pull requests in GitHub are open. You don't need to bother with patch file submissions anymore. To contribute, fork the repo (just the main branch), make changes in your fork, and contribute to upstream by opening a pull request to the main repo.
+To contribute, fork the repo (just the main branch), make changes in your fork, and contribute to upstream by opening a pull request to the main repo.
 
 ### Adding support for games
 
@@ -12,6 +11,14 @@ Pull requests in GitHub are open. You don't need to bother with patch file submi
 * For a new game that was never supported (not a new version of a game, but rather a new series): please wait 1 year after official AC release in Japan.
 * For new version of an already supported game: proceed with caution and use generally-accepted community guidelines.
 
+### Forbidden "features" that will never be accepted
+
+* Performing decryption of encrypted files
+* Including (bundling), distributing, or linking to game data, or making it easier to find/download game data
+* Any features that [phone home](https://en.wikipedia.org/wiki/Phoning_home)
+  * This includes automatic updaters.
+  * Exception: we have allowed the "patch import from URL" feature, but this has only been done under very careful considerations and plenty of warnings to the user.
+
 ### Avoiding regressions
 
 The biggest risk in making code changes to spice is the risk of regressions. There is a **lot** of shared code used by many different games, reaching back game versions that are more than a decade old. It is practically impossible to test all supported games and versions.

src/spice2x/CMakeLists.txt

@@ -624,6 +624,7 @@ set(SOURCE_FILES ${SOURCE_FILES}
         util/execexe.cpp
         util/dependencies.cpp
         util/deferlog.cpp
+        util/socd_cleaner.cpp
 )
 
 source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} PREFIX "Source Files" FILES ${SOURCE_FILES})

src/spice2x/acio/bi2a/bi2a.cpp

@@ -9,11 +9,22 @@
 #include "games/drs/drs.h"
 #include "misc/eamuse.h"
 #include "util/logging.h"
+#include "util/socd_cleaner.h"
+#include "util/time.h"
 #include "util/utils.h"
 #include "util/tapeled.h"
 
 using namespace GameAPI;
 
+#define DEBUG_VERBOSE 0
+
+#if DEBUG_VERBOSE
+#define log_debug(module, format_str, ...) logger::push( \
+    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
+#else
+#define log_debug(module, format_str, ...)
+#endif
+
 // state
 static uint8_t STATUS_BUFFER[272] {};
 static bool STATUS_BUFFER_FREEZE = false;
@@ -94,18 +105,25 @@ static bool __cdecl ac_io_bi2a_update_control_status_buffer() {
         }
 
         // volume left
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Left))) {
+        const auto now = get_performance_milliseconds();
+        const auto vol_l_state = socd::socd_clean(0,
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Left)),
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Right)),
+            now);
+        if (vol_l_state == socd::SocdCCW) {
             BI2A_VOLL = (BI2A_VOLL - games::sdvx::DIGITAL_KNOB_SENS) & 1023;
-        }
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Right))) {
+        } else if (vol_l_state == socd::SocdCW) {
             BI2A_VOLL = (BI2A_VOLL + games::sdvx::DIGITAL_KNOB_SENS) & 1023;
         }
 
         // volume right
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Left))) {
+        const auto vol_r_state = socd::socd_clean(1,
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Left)),
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Right)),
+            now);
+        if (vol_r_state == socd::SocdCCW) {
             BI2A_VOLR = (BI2A_VOLR - games::sdvx::DIGITAL_KNOB_SENS) & 1023;
-        }
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Right))) {
+        } else if (vol_r_state == socd::SocdCW) {
             BI2A_VOLR = (BI2A_VOLR + games::sdvx::DIGITAL_KNOB_SENS) & 1023;
         }
 
@@ -127,6 +145,12 @@ static bool __cdecl ac_io_bi2a_update_control_status_buffer() {
         // save volumes in buffer
         *((uint16_t*) &STATUS_BUFFER[17]) = (uint16_t) ((vol_left) << 2);
         *((uint16_t*) &STATUS_BUFFER[19]) = (uint16_t) ((vol_right) << 2);
+
+        log_debug(
+            "bi2a",
+            "knobs = {} {}",
+            *((uint16_t*) &STATUS_BUFFER[17]),
+            *((uint16_t*) &STATUS_BUFFER[19]));
     }
 
     // DanceDanceRevolution

src/spice2x/acio/kfca/kfca.cpp

@@ -8,10 +8,21 @@
 #include "games/sdvx/io.h"
 #include "misc/eamuse.h"
 #include "rawinput/rawinput.h"
+#include "util/socd_cleaner.h"
+#include "util/time.h"
 #include "util/utils.h"
 
 using namespace GameAPI;
 
+#define DEBUG_VERBOSE 0
+
+#if DEBUG_VERBOSE
+#define log_debug(module, format_str, ...) logger::push( \
+    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
+#else
+#define log_debug(module, format_str, ...)
+#endif
+
 // globals
 uint8_t KFCA_VOL_SOUND = 96;
 uint8_t KFCA_VOL_HEADPHONE = 96;
@@ -342,18 +353,25 @@ static char __cdecl ac_io_kfca_update_control_status_buffer() {
         }
 
         // volume left
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Left))) {
+        const auto now = get_performance_milliseconds();
+        const auto vol_l_state = socd::socd_clean(0,
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Left)),
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Right)),
+            now);
+        if (vol_l_state == socd::SocdCCW) {
             KFCA_VOLL = (KFCA_VOLL - games::sdvx::DIGITAL_KNOB_SENS) & 1023;
-        }
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_L_Right))) {
+        } else if (vol_l_state == socd::SocdCW) {
             KFCA_VOLL = (KFCA_VOLL + games::sdvx::DIGITAL_KNOB_SENS) & 1023;
         }
 
         // volume right
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Left))) {
+        const auto vol_r_state = socd::socd_clean(1,
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Left)),
+            Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Right)),
+            now);
+        if (vol_r_state == socd::SocdCCW) {
             KFCA_VOLR = (KFCA_VOLR - games::sdvx::DIGITAL_KNOB_SENS) & 1023;
-        }
-        if (Buttons::getState(RI_MGR, buttons.at(games::sdvx::Buttons::VOL_R_Right))) {
+        } else if (vol_r_state == socd::SocdCW) {
             KFCA_VOLR = (KFCA_VOLR + games::sdvx::DIGITAL_KNOB_SENS) & 1023;
         }
 
@@ -371,6 +389,8 @@ static char __cdecl ac_io_kfca_update_control_status_buffer() {
         // proper loops
         vol_left %= 1024;
         vol_right %= 1024;
+        
+        log_debug("kfca", "knobs = {} {}", vol_left, vol_right);
 
         // save volumes in buffer
         STATUS_BUFFER[input_offset + 16 + 0] |= (unsigned char) ((vol_left << 6) & 0xFF);

src/spice2x/acioemu/icca.cpp

@@ -2,6 +2,7 @@
 
 #include "acio/icca/icca.h"
 #include "avs/game.h"
+#include "games/sdvx/sdvx.h"
 #include "misc/eamuse.h"
 #include "util/logging.h"
 #include "util/utils.h"
@@ -101,13 +102,10 @@ bool ICCADevice::parse_msg(MessageData *msg_in,
 
             // send version data
             auto msg = this->create_msg(msg_in, MSG_VERSION_SIZE);
-            if (
-                avs::game::is_model({"LDJ", "TBS", "UJK", "XIF"}) ||
-                // SDVX Valkyrie cabinet mode
-                (avs::game::is_model("KFC") && (avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H'))
-            ) {
+            if (avs::game::is_model({"LDJ", "TBS", "UJK", "XIF"}) ||
+                games::sdvx::is_valkyrie_model()) {
                 this->set_version(msg, 0x3, 0, 1, 7, 0, "ICCA");
-            } else if (avs::game::is_model({"VFG"})) {
+            } else if (avs::game::is_model("VFG")) {
                 this->set_version(msg, 0x3, 0, 1, 7, 0, "ICCB");
             } else {
                 this->set_version(msg, 0x3, 0, 1, 6, 0, "ICCA");
@@ -520,11 +518,7 @@ void ICCADevice::update_status(int unit) {
             buffer[1] = felica ? 0x01 : 0x00;
             buffer[10] = felica ? 0x01 : 0x00;
 
-        } else if (
-            avs::game::is_model({"LDJ", "TBS", "XIF"}) ||
-            // SDVX Valkyrie cabinet mode
-            (avs::game::is_model("KFC") && (avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H'))) {
-
+        } else if (avs::game::is_model({"LDJ", "TBS", "XIF"}) || games::sdvx::is_valkyrie_model()) {
             // set status to 0 otherwise reader power on fails
             buffer[0] = 0x00;
         } else {

src/spice2x/avs/core.cpp

@@ -1234,6 +1234,7 @@ namespace avs {
                                 break;
                             case 'F':
                                 new_style = logger::Style::RED;
+                                deferredlogs::report_fatal_message();
                                 break;
                             default:
                                 position = 0;
@@ -1302,6 +1303,7 @@ namespace avs {
                     break;
                 case 'F':
                     style = logger::Style::RED;
+                    deferredlogs::report_fatal_message();
                     break;
                 case 'W':
                     style = logger::Style::YELLOW;

src/spice2x/cfg/screen_resize.h

@@ -69,6 +69,7 @@ namespace cfg {
         uint32_t init_client_height = 0;
         float init_client_aspect_ratio = 1.f;
         uint32_t init_window_style = 0;
+        uint32_t init_window_style_ex = 0;
         uint32_t window_deco_width = 0;
         uint32_t window_deco_height = 0;
 

src/spice2x/games/gitadora/bi2x_hook.cpp

@@ -1,5 +1,6 @@
 #include "bi2x_hook.h"
 
+#include <optional>
 #include <cstdint>
 #include "util/detour.h"
 #include "util/logging.h"
@@ -323,10 +324,38 @@ namespace games::gitadora {
     }
 
     void __fastcall aioIob2Bi2xAC1_SetOutputData(AIO_IOB2_BI2X_AC1 *i_pNodeCtl, uint32_t i_CnPin, uint8_t i_Data) {
-        
+
         if (i_pNodeCtl != aioIob2Bi2xAc1) {
             return aioIob2Bi2xAC1_SetOutputData_orig(i_pNodeCtl, i_CnPin, i_Data);
         }
+
+        std::optional<Lights::gitadora_lights_t> light;
+        switch (i_CnPin) {
+            case 14:
+                light = Lights::ArenaWooferR;
+                break;
+            case 15:
+                light = Lights::ArenaWooferG;
+                break;
+            case 16:
+                light = Lights::ArenaWooferB;
+                break;
+            case 17:
+                light = Lights::ArenaCardR;
+                break;
+            case 18:
+                light = Lights::ArenaCardG;
+                break;
+            case 19:
+                light = Lights::ArenaCardB;
+                break;
+            default:
+                break;
+        }
+        if (light.has_value()) {
+            auto &lights = games::gitadora::get_lights();
+            GameAPI::Lights::writeLight(RI_MGR, lights.at(light.value()), i_Data / 255.f);
+        }
     }
 
     void __fastcall aioIob2Bi2xAC1_SetTapeLedDataPart(AIO_IOB2_BI2X_AC1 *i_pNodeCtl, uint32_t i_TapeLedCh,
@@ -336,6 +365,16 @@ namespace games::gitadora {
         if (i_pNodeCtl != aioIob2Bi2xAc1) {
             return aioIob2Bi2xAC1_SetTapeLedDataPart_orig(i_pNodeCtl, i_TapeLedCh, i_Offset, i_pData, i_cntTapeLed, i_bReverse);
         }
+
+        if (tapeledutils::is_enabled() && 
+            i_TapeLedCh == 0 && i_Offset == 0 && i_cntTapeLed == 62) {
+
+            auto &lights = get_lights();
+            const auto rgb = tapeledutils::pick_color_from_led_tape(i_pData, i_cntTapeLed);
+            GameAPI::Lights::writeLight(RI_MGR, lights[Lights::ArenaTitleAvgR], rgb.r);
+            GameAPI::Lights::writeLight(RI_MGR, lights[Lights::ArenaTitleAvgG], rgb.g);
+            GameAPI::Lights::writeLight(RI_MGR, lights[Lights::ArenaTitleAvgB], rgb.b);
+        }
     }
 
     void __fastcall aioIob2Bi2x_SetTapeLedDataLimit(AIO_IOB2_BI2X_AC1 *i_pNodeCtl, uint32_t i_Channel,
@@ -551,6 +590,7 @@ namespace games::gitadora {
     }
 
     // libaio-iob5_y32.dll
+
     static AIO_IOB5_Y32D *__fastcall aioIob5Y32d_Create(AIO_NMGR_IOB5 *i_pSci, uint32_t i_bfMode) {
 
         if (i_pSci == aioNmgrIob5) {

src/spice2x/games/gitadora/gitadora.cpp

@@ -5,6 +5,7 @@
 #include "cfg/configurator.h"
 #include "hooks/audio/mme.h"
 #include "hooks/graphics/graphics.h"
+#include "overlay/overlay.h"
 #include "util/cpuutils.h"
 #include "util/detour.h"
 #include "util/libutils.h"
@@ -212,6 +213,13 @@ namespace games::gitadora {
                 log_fatal("gitadora", "Cabinet type 3 (SD2) not supported on XG series");
             }
 #endif
+
+            // arena model launches a tiny window yet backbuffer at 4k, resulting in unusable overlay
+            // force scaling to make things usable
+            if (!overlay::UI_SCALE_PERCENT.has_value() && is_arena_model() &&
+                GRAPHICS_WINDOWED && !cfg::CONFIGURATOR_STANDALONE) {
+                overlay::UI_SCALE_PERCENT = 250;
+            }
         }
     }
 

src/spice2x/games/gitadora/io.cpp

@@ -211,7 +211,19 @@ std::vector<Light> &games::gitadora::get_lights() {
                 "Guitar Right Speaker Mid Low Right B (DX)",
                 "Guitar Right Speaker Lower R (DX)",
                 "Guitar Right Speaker Lower G (DX)",
-                "Guitar Right Speaker Lower B (DX)"
+                "Guitar Right Speaker Lower B (DX)",
+
+                "Title Average R (Arena)",
+                "Title Average G (Arena)",
+                "Title Average B (Arena)",
+
+                "Woofer R (Arena)",
+                "Woofer G (Arena)",
+                "Woofer B (Arena)",
+
+                "Card Reader R (Arena)",
+                "Card Reader G (Arena)",
+                "Card Reader B (Arena)"
         );
     }
 

src/spice2x/games/gitadora/io.h

@@ -191,7 +191,18 @@ namespace games::gitadora {
             GuitarRightSpeakerMidLowRightB,
             GuitarRightSpeakerLowerR,
             GuitarRightSpeakerLowerG,
-            GuitarRightSpeakerLowerB
+            GuitarRightSpeakerLowerB,
+
+            // arena model (common for both guitar and drum)
+            ArenaTitleAvgR,
+            ArenaTitleAvgG,
+            ArenaTitleAvgB,
+            ArenaWooferR,
+            ArenaWooferG,
+            ArenaWooferB,
+            ArenaCardR,
+            ArenaCardG,
+            ArenaCardB,
         } gitadora_lights_t;
     }
 

src/spice2x/games/iidx/bi2x_hook.cpp

@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include <cstdint>
 #include "util/detour.h"
 #include "util/logging.h"
@@ -24,17 +26,28 @@ namespace games::iidx {
         uint8_t data[0x10];
     };
 
-    struct AIO_NMGR_IOB2 {
-        uint8_t dummy0[0x50];
+    struct AIO_NMGR_IOB2_VTABLE {
+        // other functions here, but they never get called
+        uint8_t dummy[0x50];
         void (__fastcall *pAIO_NMGR_IOB_BeginManage)(int64_t a1);
-        uint8_t dummy1[0x9A0];
     };
 
+    struct AIO_NMGR_IOB2 {
+        AIO_NMGR_IOB2_VTABLE *vptr;
+        uint8_t dummy[0x9F0];
+    };
+
+    // confirmed 0x9F8 in iidx27, iidx32 aioNMgrIob2_Create
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0x9F8);
+
     struct AIO_IOB2_BI2X_TDJ {
         // who knows
         uint8_t data[0x13F8];
     };
 
+    // confirmed 0x13F8 in iidx27, iidx32 in aioIob2Bi2xTDJ_Create
+    static_assert(sizeof(AIO_IOB2_BI2X_TDJ) == 0x13F8);
+
     struct AIO_IOB2_BI2X_TDJ__DEVSTATUS {
         // of course you could work with variables here
         uint8_t buffer[0xCA];
@@ -78,7 +91,7 @@ namespace games::iidx {
     // libaio-iob.dll
     typedef AC_HNDLIF* (__fastcall *aioIob2Bi2x_OpenSciUsbCdc_t)(uint8_t device_num);
     typedef int64_t (__fastcall *aioIob2Bi2x_WriteFirmGetState_t)(int64_t a1);
-    typedef AIO_NMGR_IOB2** (__fastcall *aioNMgrIob2_Create_t)(AC_HNDLIF *a1, unsigned int a2);
+    typedef AIO_NMGR_IOB2* (__fastcall *aioNMgrIob2_Create_t)(AC_HNDLIF *a1, unsigned int a2);
 
     /*
      * function pointers
@@ -443,7 +456,7 @@ namespace games::iidx {
         }
     }
 
-    static AC_HNDLIF* __fastcall aioIob2Bi2X_OpenSciUsbCdc(uint8_t device_num) {
+    static AC_HNDLIF* __fastcall aioIob2Bi2x_OpenSciUsbCdc(uint8_t device_num) {
         if (acHndlif == nullptr) {
             acHndlif = new AC_HNDLIF;
             memset(acHndlif->data, 0x0, sizeof(acHndlif->data));
@@ -456,14 +469,16 @@ namespace games::iidx {
         log_info("bi2x_hook", "AIO_NMGR_IOB::BeginManage");
     };
 
-    static AIO_NMGR_IOB2** __fastcall aioNMgrIob2_Create(AC_HNDLIF *a1, unsigned int a2) {
+    static AIO_NMGR_IOB2* __fastcall aioNMgrIob2_Create(AC_HNDLIF *a1, unsigned int a2) {
         if (aioNmgrIob2 == nullptr) {
-            aioNmgrIob2 = new AIO_NMGR_IOB2;
-            memset(aioNmgrIob2, 0x0, sizeof(AIO_NMGR_IOB2));
-            aioNmgrIob2->pAIO_NMGR_IOB_BeginManage = AIO_NMGR_IOB_BeginManageStub;
+            aioNmgrIob2 = new AIO_NMGR_IOB2{};
+            aioNmgrIob2->vptr = new AIO_NMGR_IOB2_VTABLE{};
+            aioNmgrIob2->vptr->pAIO_NMGR_IOB_BeginManage = AIO_NMGR_IOB_BeginManageStub;
         }
-        log_info("bi2x_hook", "aioNMgrIob2_Create");
-        return &aioNmgrIob2;
+        log_info("bi2x_hook", "aioNMgrIob2_Create returned {}, size=0x{:x}, vptr @ {}",
+            fmt::ptr(aioNmgrIob2), sizeof(*aioNmgrIob2), fmt::ptr(aioNmgrIob2->vptr));
+
+        return aioNmgrIob2;
     }
 
     static int64_t __fastcall aioIob2Bi2x_WriteFirmGetState(int64_t a1) {
@@ -520,10 +535,12 @@ namespace games::iidx {
         // hook IOB
         const auto libaioIobDll = "libaio-iob.dll";
         detour::trampoline_try(libaioIobDll, "aioIob2Bi2x_OpenSciUsbCdc",
-                aioIob2Bi2X_OpenSciUsbCdc, &aioIob2Bi2x_OpenSciUsbCdc_orig);
+                aioIob2Bi2x_OpenSciUsbCdc, &aioIob2Bi2x_OpenSciUsbCdc_orig);
         detour::trampoline_try(libaioIobDll, "aioIob2Bi2x_WriteFirmGetState",
                 aioIob2Bi2x_WriteFirmGetState, &aioIob2Bi2x_WriteFirmGetState_orig);
         detour::trampoline_try(libaioIobDll, "aioNMgrIob2_Create",
                 aioNMgrIob2_Create, &aioNMgrIob2_Create_orig);
     }
 }
+
+#endif

src/spice2x/games/iidx/bi2x_hook.h

@@ -1,6 +1,10 @@
 #pragma once
 
+#if SPICE64
+
 namespace games::iidx {
 
     void bi2x_hook_init();
 }
+
+#endif

src/spice2x/games/iidx/iidx.cpp

@@ -29,6 +29,8 @@
 #include "util/libutils.h"
 #include "util/memutils.h"
 #include "util/sigscan.h"
+#include "util/socd_cleaner.h"
+#include "util/time.h"
 #include "util/utils.h"
 #include "launcher/signal.h"
 
@@ -251,6 +253,8 @@ namespace games::iidx {
         }
     }
 
+#if SPICE64
+
     typedef void* (*aioIob2Bi2x_CreateWriteFirmContext_t)(unsigned int, int);
     static aioIob2Bi2x_CreateWriteFirmContext_t aioIob2Bi2x_CreateWriteFirmContext_orig = nullptr;
 
@@ -269,6 +273,8 @@ namespace games::iidx {
         return nullptr;
     }
 
+#endif
+
     IIDXGame::IIDXGame() : Game("Beatmania IIDX") {
         logger::hook_add(log_hook, this);
     }
@@ -319,6 +325,8 @@ namespace games::iidx {
             devicehook_add(new IIDXFMSerialHandle());
         }
 
+#if SPICE64
+
         // check for new I/O DLL
         auto aio = libutils::try_library("libaio.dll");
         if (aio != nullptr) {
@@ -384,6 +392,8 @@ namespace games::iidx {
             }
         }
 
+#endif
+
         if (hooks::audio::ENABLED) {
             apply_audio_hacks();
         } else {
@@ -499,6 +509,16 @@ namespace games::iidx {
                 "    monitor in Windows settings before launching the game"
                 });
         }
+
+        // socd
+        socd::ALGORITHM = socd::SocdAlgorithm::Neutral;
+        if (options->at(launcher::Options::IIDXDigitalTTSocd).is_active()) {
+            if (options->at(launcher::Options::IIDXDigitalTTSocd).value_text() == "last") {
+                socd::ALGORITHM = socd::SocdAlgorithm::PreferRecent;
+            } else if (options->at(launcher::Options::IIDXDigitalTTSocd).value_text() == "first") {
+                socd::ALGORITHM = socd::SocdAlgorithm::PreferFirst;
+            }
+        }
     }
 
     void IIDXGame::detach() {
@@ -722,13 +742,12 @@ namespace games::iidx {
         bool ttpm_alt = GameAPI::Buttons::getState(RI_MGR, buttons.at(
                 player != 0 ? Buttons::P2_TTPlusMinusAlt : Buttons::P1_TTPlusMinusAlt));
 
-        // TT+
-        if (ttp)
+        const auto tt_socd = socd::socd_clean(player, ttm, ttp, get_performance_milliseconds());
+        if (tt_socd == socd::SocdCW) {
             IIDXIO_TT_STATE[player] += change;
-
-        // TT-
-        if (ttm)
+        } else if (tt_socd == socd::SocdCCW) {
             IIDXIO_TT_STATE[player] -= change;
+        }
 
         // TT+/-
         bool ttpm_rising_edge = !IIDXIO_TT_PRESSED[player] && ttpm;

src/spice2x/games/sdvx/bi2x_hook.cpp

@@ -1,5 +1,7 @@
 #include "bi2x_hook.h"
 
+#if SPICE64
+
 #include <cstdint>
 #include "util/detour.h"
 #include "util/logging.h"
@@ -10,12 +12,22 @@
 #include "launcher/options.h"
 #include "io.h"
 #include "games/sdvx/sdvx.h"
+#include "util/socd_cleaner.h"
 #include "util/tapeled.h"
+#include "util/time.h"
 #include "acioemu/icca.h"
 
+#define DEBUG_VERBOSE 0
+
+#if DEBUG_VERBOSE
+#define log_debug(module, format_str, ...) logger::push( \
+    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
+#else
+#define log_debug(module, format_str, ...)
+#endif
+
 namespace games::sdvx {
     constexpr bool BI2X_PASSTHROUGH = false;
-    bool BI2X_INITIALIZED = false;
 
     /*
      * class definitions
@@ -26,17 +38,28 @@ namespace games::sdvx {
         uint8_t data[0x10];
     };
 
-    struct AIO_NMGR_IOB2 {
-        uint8_t dummy0[0x50];
+    struct AIO_NMGR_IOB2_VTABLE {
+        // other functions here, but they never get called
+        uint8_t dummy[0x50];
         void (__fastcall *pAIO_NMGR_IOB_BeginManage)(int64_t a1);
-        uint8_t dummy1[0x9A0];
     };
 
+    struct AIO_NMGR_IOB2 {
+        AIO_NMGR_IOB2_VTABLE *vptr;
+        uint8_t dummy[0x9F0];
+    };
+
+    // confirmed in EG final in aioNMgrIob2_Create
+    static_assert(sizeof(AIO_NMGR_IOB2) == 0x9F8);
+
     struct AIO_IOB2_BI2X_UFC {
         // who knows
-        uint8_t data[0x13F8];
+        uint8_t data[0x39D8];
     };
 
+    // confirmed in EG final in aioIob2Bi2xUFC_Create
+    static_assert(sizeof(AIO_IOB2_BI2X_UFC) == 0x39D8);
+
     struct AIO_IOB2_BI2X_UFC__DEVSTATUS {
         // of course you could work with variables here
         uint8_t buffer[0x19E];
@@ -66,7 +89,7 @@ namespace games::sdvx {
     // libaio-iob.dll
     typedef AC_HNDLIF* (__fastcall *aioIob2Bi2x_OpenSciUsbCdc_t)(uint8_t device_num);
     typedef int64_t (__fastcall *aioIob2Bi2x_WriteFirmGetState_t)(int64_t a1);
-    typedef AIO_NMGR_IOB2** (__fastcall *aioNMgrIob2_Create_t)(AC_HNDLIF *a1, unsigned int a2);
+    typedef AIO_NMGR_IOB2* (__fastcall *aioNMgrIob2_Create_t)(AC_HNDLIF *a1, unsigned int a2);
 
     /*
      * function pointers
@@ -164,19 +187,27 @@ namespace games::sdvx {
         if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Headphone]))
             status->buffer[22] = 0x01;
 
+        const auto now = get_performance_milliseconds();
+
         // volume left
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_L_Left])) {
+        const auto vol_l_state = socd::socd_clean(0,
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_L_Left]),
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_L_Right]),
+            now);
+        if (vol_l_state == socd::SocdCCW) {
             VOL_L -= ((uint16_t)DIGITAL_KNOB_SENS * 4);
-        }
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_L_Right])) {
+        } else if (vol_l_state == socd::SocdCW) {
             VOL_L += ((uint16_t)DIGITAL_KNOB_SENS * 4);
         }
 
         // volume right
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_R_Left])) {
+        const auto vol_r_state = socd::socd_clean(1,
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_R_Left]),
+            GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_R_Right]),
+            now);
+        if (vol_r_state == socd::SocdCCW) {
             VOL_R -= ((uint16_t)DIGITAL_KNOB_SENS * 4);
-        }
-        if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::VOL_R_Right])) {
+        } else if (vol_r_state == socd::SocdCW) {
             VOL_R += ((uint16_t)DIGITAL_KNOB_SENS * 4);
         }
 
@@ -191,6 +222,12 @@ namespace games::sdvx {
 
         *((uint16_t*) &status->buffer[312]) = vol_left;
         *((uint16_t*) &status->buffer[314]) = vol_right;
+
+        log_debug(
+            "bi2x_hook",
+            "knobs = {} {}",
+            *((uint16_t*) &status->buffer[312]),
+            *((uint16_t*) &status->buffer[314]));
     }
 
     static void __fastcall AIO_IOB2_BI2X_UFC__IoReset(AIO_IOB2_BI2X_UFC *This,
@@ -345,21 +382,21 @@ namespace games::sdvx {
         log_info("bi2x_hook", "AIO_NMGR_IOB::BeginManage");
     }
 
-    static AIO_NMGR_IOB2** __fastcall aioNMgrIob2_Create(AC_HNDLIF *a1, unsigned int a2) {
+    static AIO_NMGR_IOB2* __fastcall aioNMgrIob2_Create(AC_HNDLIF *a1, unsigned int a2) {
         if (aioNmgrIob2 == nullptr) {
-            aioNmgrIob2 = new AIO_NMGR_IOB2;
-            memset(aioNmgrIob2, 0x0, sizeof(AIO_NMGR_IOB2));
-            aioNmgrIob2->pAIO_NMGR_IOB_BeginManage = AIO_NMGR_IOB_BeginManageStub;
+            aioNmgrIob2 = new AIO_NMGR_IOB2{};
+            aioNmgrIob2->vptr = new AIO_NMGR_IOB2_VTABLE{};
+            aioNmgrIob2->vptr->pAIO_NMGR_IOB_BeginManage = AIO_NMGR_IOB_BeginManageStub;
         }
-        log_info("bi2x_hook", "aioNMgrIob2_Create");
-        BI2X_INITIALIZED = true;
+        log_info("bi2x_hook", "aioNMgrIob2_Create returned {}, size=0x{:x}, vptr @ {}",
+            fmt::ptr(aioNmgrIob2), sizeof(*aioNmgrIob2), fmt::ptr(aioNmgrIob2->vptr));
 
         // enable hack to make PIN pad work for KFC in BI2X mode
         // this explicit check in the I/O init path is necessary
         // (as opposed to just doing a check for "isValkyrieCabMode?")
         // because there are hex edits that allow you to use legacy (KFC/BIO2) IO while in Valk mode
         acioemu::ICCA_DEVICE_HACK = true;
-        return &aioNmgrIob2;
+        return aioNmgrIob2;
     }
 
     static int64_t __fastcall aioIob2Bi2x_WriteFirmGetState(int64_t a1) {
@@ -411,3 +448,5 @@ namespace games::sdvx {
                 aioNMgrIob2_Create, &aioNMgrIob2_Create_orig);
     }
 }
+
+#endif

src/spice2x/games/sdvx/bi2x_hook.h

@@ -1,6 +1,10 @@
 #pragma once
 
+#if SPICE64
+
 namespace games::sdvx {
 
     void bi2x_hook_init();
 }
+
+#endif

src/spice2x/games/sdvx/sdvx.cpp

@@ -2,7 +2,6 @@
 
 #include <external/robin_hood.h>
 
-#include "avs/game.h"
 #include "games/shared/lcdhandle.h"
 #include "games/io.h"
 #include "hooks/audio/audio.h"
@@ -19,6 +18,8 @@
 #include "util/detour.h"
 #include "util/logging.h"
 #include "util/sigscan.h"
+#include "util/socd_cleaner.h"
+#include "util/time.h"
 #include "util/libutils.h"
 #include "misc/wintouchemu.h"
 #include "misc/eamuse.h"
@@ -331,9 +332,8 @@ namespace games::sdvx {
         }
 
 #ifdef SPICE64 // SDVX5+ specific code
-        this->VALKYRIE_MODEL = avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H';
         // check -monitor + UFC mode
-        if (!GRAPHICS_WINDOWED && D3D9_ADAPTER.has_value() && this->VALKYRIE_MODEL) {
+        if (!GRAPHICS_WINDOWED && D3D9_ADAPTER.has_value() && is_valkyrie_model()) {
             SHOW_VM_MONITOR_WARNING = true;
             log_warning(
                 "sdvx",
@@ -362,6 +362,16 @@ namespace games::sdvx {
         this->detect_sound_output_device();
 #endif
 
+        // SOCD
+        auto options = games::get_options(eamuse_get_game());
+        socd::ALGORITHM = socd::SocdAlgorithm::PreferRecent;
+        if (options->at(launcher::Options::SDVXDigitalKnobSocd).is_active()) {
+            if (options->at(launcher::Options::SDVXDigitalKnobSocd).value_text() == "neutral") {
+                socd::ALGORITHM = socd::SocdAlgorithm::Neutral;
+            } else if (options->at(launcher::Options::SDVXDigitalKnobSocd).value_text() == "last") {
+                socd::ALGORITHM = socd::SocdAlgorithm::PreferRecent;
+            }
+        }
     }
 
     void SDVXGame::attach() {
@@ -370,7 +380,7 @@ namespace games::sdvx {
 #ifdef SPICE64 // SDVX5+ specific code
 
         // LCD handle
-        if (!this->VALKYRIE_MODEL) {
+        if (!is_valkyrie_model()) {
             devicehook_init();
             devicehook_add(new games::shared::LCDHandle());
         }
@@ -409,7 +419,7 @@ namespace games::sdvx {
                 nvapi_hook::initialize(avs::game::DLL_INSTANCE);
             }
 
-            if (this->VALKYRIE_MODEL) {
+            if (is_valkyrie_model()) {
                 // hook touch window
                 // in windowed mode, game can accept mouse input on the second screen
                 if (!NATIVETOUCH && !GRAPHICS_WINDOWED) {

src/spice2x/games/sdvx/sdvx.h

@@ -4,6 +4,7 @@
 #include <optional>
 #include <cstdint>
 
+#include "avs/game.h"
 #include "games/game.h"
 
 namespace games::sdvx {
@@ -20,12 +21,18 @@ namespace games::sdvx {
     extern bool NATIVETOUCH;
     extern uint8_t DIGITAL_KNOB_SENS;
     extern std::optional<std::string> ASIO_DRIVER;
-    extern bool BI2X_INITIALIZED;
     extern SdvxOverlayPosition OVERLAY_POS;
 
     // states
     extern bool SHOW_VM_MONITOR_WARNING;
 
+    static inline bool is_valkyrie_model() {
+        return (
+            avs::game::is_model("KFC") &&
+            (avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H')
+            );
+    }
+
     class SDVXGame : public games::Game {
     public:
         SDVXGame();
@@ -34,11 +41,6 @@ namespace games::sdvx {
         virtual void post_attach() override;
         virtual void detach() override;
     private:
-        // don't be tempted to make this into a public or a global variable
-        // various modules need to check if VM mode is active and they should
-        // not depend on the fact that SDVX module is active (since it can be
-        // inactive on cabs or partial I/O setup)
-        bool VALKYRIE_MODEL = false;
         void detect_sound_output_device();
     };
 }

src/spice2x/hooks/graphics/backends/d3d9/d3d9_backend.cpp

@@ -41,6 +41,15 @@
 #undef min
 #endif
 
+#define D3D9_BACKEND_DEBUG 0
+
+#if D3D9_BACKEND_DEBUG
+#define log_debug(module, format_str, ...) logger::push( \
+    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
+#else
+#define log_debug(module, format_str, ...)
+#endif
+
 #define CHECK_RESULT(x) \
     do { \
         HRESULT __ret = (x); \
@@ -514,7 +523,7 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::EnumAdapterModes(
             if (!modified && games::iidx::is_tdj_fhd() && refresh < 110) {
                 if ((width == 1920 && height == 1080) ||
                     (width == 1280 && height == 720)){
-                    log_misc(
+                    log_debug(
                         "graphics::d3d9", "removing mode {}, {}x{} @ {}Hz (for TDJ FHD)",
                         Mode, width, height, refresh);
                     memset(pMode, 0, sizeof(*pMode));
@@ -527,7 +536,7 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::EnumAdapterModes(
             // - skip 75 and 90 Hz entries because LDJ game timing is messed up with it
             //   (TDJ should be fine as it assumes a fixed 60 Hz timing)
             if (!modified && (width == 1360 || width == 1366 || refresh == 75 || refresh == 90)) {
-                log_misc(
+                log_debug(
                     "graphics::d3d9", "removing mode {}, {}x{} @ {}Hz (for LDJ/TDJ)",
                     Mode, width, height, refresh);
                 memset(pMode, 0, sizeof(*pMode));
@@ -535,7 +544,7 @@ HRESULT STDMETHODCALLTYPE WrappedIDirect3D9::EnumAdapterModes(
             }
 
             if (!modified && !games::iidx::TDJ_MODE && games::iidx::FORCE_720P && (height > 720)) {
-                log_misc(
+                log_debug(
                     "graphics::d3d9", "removing mode {}, {}x{} @ {}Hz (-iidxforce720p)",
                     Mode, width, height, refresh);
                 memset(pMode, 0, sizeof(*pMode));
@@ -1353,9 +1362,7 @@ void graphics_d3d9_on_present(
     }
 
     // for IIDX TDJ / SDVX UFC, handle subscreen
-    const bool is_vm = 
-        avs::game::is_model("KFC") &&
-        (avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H');
+    const bool is_vm = games::sdvx::is_valkyrie_model();
     const bool is_tdj = avs::game::is_model("LDJ") && games::iidx::TDJ_MODE;
     if (is_vm || is_tdj) {
         graphics_d3d9_ldj_on_present(wrapped_device);

src/spice2x/hooks/graphics/graphics.cpp

@@ -61,6 +61,7 @@ bool GRAPHICS_SHOW_CURSOR = false;
 graphics_orientation GRAPHICS_ADJUST_ORIENTATION = ORIENTATION_NORMAL;
 bool GRAPHICS_WINDOWED = false;
 std::vector<HWND> GRAPHICS_WINDOWS;
+std::optional<HWND> GRAPHICS_WINDOW_MAIN;
 UINT GRAPHICS_FORCE_REFRESH = 0;
 std::optional<int> GRAPHICS_FORCE_VSYNC_BUFFER;
 bool GRAPHICS_FORCE_SINGLE_ADAPTER = false;
@@ -362,10 +363,12 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
     }
 
     // gfdm
+    bool is_gitadora_main_window = false;
     if (avs::game::is_model({"J32", "J33", "K32", "K33", "L32", "L33", "M32"})) {
         // set window name
         if (!lpWindowName) {
             lpWindowName = "GITADORA";
+            is_gitadora_main_window = true;
         }
     }
 
@@ -408,6 +411,11 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
             hWndParent, hMenu, hInstance, lpParam);
     GRAPHICS_WINDOWS.push_back(result);
 
+    // this is only really needed for arena model, but pre-arena model was single window anyway
+    if (is_gitadora_main_window) {
+        GRAPHICS_WINDOW_MAIN = result;
+    }
+
     if (is_tdj_sub_window) {
         // TDJ windowed mode: remember the subscreen window handle for later
         TDJ_SUBSCREEN_WINDOW = result;
@@ -430,6 +438,7 @@ static HWND WINAPI CreateWindowExA_hook(DWORD dwExStyle, LPCSTR lpClassName, LPC
     }
 
     disable_touch_indicators(result);
+    log_misc("graphics", "CreateWindowExA returned {}", fmt::ptr(result));
     return result;
 }
 
@@ -496,6 +505,7 @@ static HWND WINAPI CreateWindowExW_hook(DWORD dwExStyle, LPCWSTR lpClassName, LP
             hWndParent, hMenu, hInstance, lpParam);
     GRAPHICS_WINDOWS.push_back(result);
 
+    log_misc("graphics", "CreateWindowExW returned {}", fmt::ptr(result));
     disable_touch_indicators(result);
     return result;
 }
@@ -660,6 +670,13 @@ static BOOL WINAPI SetWindowPos_hook(HWND hWnd, HWND hWndInsertAfter,
         return TRUE;
     }
 
+    // prevent gitadora arena model from shifting windows around if the user has preferences
+    if (GRAPHICS_WINDOWED && games::gitadora::is_arena_model() &&
+        GRAPHICS_WINDOW_MAIN.has_value() && hWnd == GRAPHICS_WINDOW_MAIN.value() &&
+        cfg::SCREENRESIZE->enable_window_resize) {
+        return TRUE;
+    }
+
     // call original
     return SetWindowPos_orig(hWnd, hWndInsertAfter, X, Y, cx, cy, uFlags);
 }

src/spice2x/hooks/graphics/graphics.h

@@ -31,6 +31,7 @@ extern bool GRAPHICS_SHOW_CURSOR;
 extern bool GRAPHICS_WINDOWED;
 extern graphics_orientation GRAPHICS_ADJUST_ORIENTATION;
 extern std::vector<HWND> GRAPHICS_WINDOWS;
+extern std::optional<HWND> GRAPHICS_WINDOW_MAIN;
 extern UINT GRAPHICS_FORCE_REFRESH;
 extern std::optional<int> GRAPHICS_FORCE_VSYNC_BUFFER;
 extern bool GRAPHICS_FORCE_SINGLE_ADAPTER;

src/spice2x/hooks/graphics/graphics_windowed.cpp

@@ -56,8 +56,12 @@ void graphics_capture_initial_window(HWND hWnd) {
     graphics_load_windowed_parameters();
 
     cfg::SCREENRESIZE->init_window_style = GetWindowLong(hWnd, GWL_STYLE);
+    cfg::SCREENRESIZE->init_window_style_ex = GetWindowLong(hWnd, GWL_EXSTYLE);
 
-    log_debug("graphics-windowed", "graphics_capture_initial_window called");
+    log_debug(
+        "graphics-windowed",
+        "graphics_capture_initial_window called, hWnd={}",
+        fmt::ptr(hWnd));
 
     RECT rect;
     if (!GetClientRect(hWnd, &rect)) {
@@ -372,13 +376,19 @@ void graphics_update_window_style(HWND hWnd) {
         return;
     }
 
-    log_debug("graphics-windowed", "graphics_update_window_style called");
+    log_debug(
+        "graphics-windowed",
+        "graphics_update_window_style called for hWnd={}",
+        fmt::ptr(hWnd));
 
     // update frame style
     auto style = cfg::SCREENRESIZE->init_window_style;
+    auto style_ex = cfg::SCREENRESIZE->init_window_style_ex;
     switch (cfg::SCREENRESIZE->window_decoration) {
         case cfg::WindowDecorationMode::Borderless:
             style &= ~WS_OVERLAPPEDWINDOW;
+            style_ex &= ~WS_EX_CLIENTEDGE;
+            style_ex &= ~WS_EX_WINDOWEDGE;
             break;
         case cfg::WindowDecorationMode::ResizableFrame:
             style |= WS_OVERLAPPEDWINDOW;
@@ -393,11 +403,26 @@ void graphics_update_window_style(HWND hWnd) {
         "graphics_update_window_style - calling SetWindowLong with Mode {}, style 0x{:x}",
         static_cast<int>(cfg::SCREENRESIZE->window_decoration),
         style);
-    SetWindowLong(hWnd, GWL_STYLE, style);
+
+    const auto ret = SetWindowLong(hWnd, GWL_STYLE, style);
+    (void)ret;
+    
+    log_debug(
+        "graphics-windowed",
+        "graphics_update_window_style - SetWindowLong(GWL_STYLE) returned {:x}, GLE={}",
+        ret,
+        GetLastError());
+
+    const auto ret2 = SetWindowLong(hWnd, GWL_EXSTYLE, style_ex);
+    (void)ret2;
+    log_debug(
+        "graphics-windowed",
+        "graphics_update_window_style SetWindowLong(GWL_EXSTYLE) returned {:x}, GLE={}",
+        ret2,
+        GetLastError());
 
     // SetWindowPos must be called after SetWindowLong if the frame style changed
     // this will be done in WM_STYLECHANGED handler
-    log_debug("graphics-windowed", "graphics_update_window_style returned");
 }
 
 void graphics_update_z_order(HWND hWnd, bool always_on_top) {

src/spice2x/hooks/lang.cpp

@@ -10,6 +10,7 @@
 #include "avs/game.h"
 #include "games/iidx/iidx.h"
 #include "games/gitadora/gitadora.h"
+#include "games/sdvx/sdvx.h"
 #include "util/detour.h"
 #include "util/logging.h"
 #include "util/utils.h"
@@ -220,8 +221,7 @@ void hooks::lang::early_init() {
     detour::trampoline_try("kernel32.dll", "GetOEMCP", GetOEMCP_hook, &GetOEMCP_orig);
 
 #ifdef SPICE64 // SDVX5+ specific code
-    bool isValkyrieCabinetMode = avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H';
-    if (avs::game::is_model("KFC") && isValkyrieCabinetMode) {
+    if (games::sdvx::is_valkyrie_model()) {
         log_info("hooks::lang", "hooking GetSystemDefaultLCID");
         detour::trampoline_try(
             "kernel32.dll",

src/spice2x/launcher/launcher.cpp

@@ -959,6 +959,12 @@ int main_implementation(int argc, char *argv[]) {
     if (options[launcher::Options::DisableOverlay].value_bool()) {
         overlay::ENABLED = false;
     }
+    if (options[launcher::Options::OverlayScaling].is_active() && !cfg::CONFIGURATOR_STANDALONE && !cfg_run) {
+        const auto val = options[launcher::Options::OverlayScaling].value_uint32();
+        if (10 <= val && val <= 400 && val != 100) {
+            overlay::UI_SCALE_PERCENT = options[launcher::Options::OverlayScaling].value_uint32();
+        }
+    }
     if (options[launcher::Options::DisableAudioHooks].value_bool()) {
         hooks::audio::ENABLED = false;
         deferredlogs::defer_error_messages({

src/spice2x/launcher/logger.cpp

@@ -12,9 +12,11 @@
 #include "launcher/launcher.h"
 #include "util/utils.h"
 
-#define FOREGROUND_GREY   (8)
-#define FOREGROUND_WHITE  (FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN)
-#define FOREGROUND_YELLOW (FOREGROUND_RED | FOREGROUND_GREEN)
+#define FOREGROUND_GREY    (8)
+#define FOREGROUND_WHITE   (FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_GREEN)
+#define FOREGROUND_YELLOW  (FOREGROUND_RED | FOREGROUND_GREEN)
+#define FOREGROUND_CYAN    (FOREGROUND_GREEN | FOREGROUND_BLUE)
+#define FOREGROUND_MAGENTA (FOREGROUND_RED | FOREGROUND_BLUE)
 
 namespace logger {
 
@@ -103,9 +105,6 @@ namespace logger {
                 last_style = content.second;
 
                 switch (content.second) {
-                    case Style::DEFAULT:
-                        set_console_color(hTerminal, FOREGROUND_WHITE);
-                        break;
                     case Style::GREY:
                         set_console_color(hTerminal, FOREGROUND_GREY);
                         break;
@@ -115,6 +114,13 @@ namespace logger {
                     case Style::RED:
                         set_console_color(hTerminal, FOREGROUND_RED);
                         break;
+                    case Style::SPECIAL:
+                        set_console_color(hTerminal, FOREGROUND_CYAN);
+                        break;
+                    case Style::DEFAULT:
+                    default:
+                        set_console_color(hTerminal, FOREGROUND_WHITE);
+                        break;
                 }
             }
 

src/spice2x/launcher/logger.h

@@ -12,7 +12,8 @@ namespace logger {
         DEFAULT = 0,
         GREY = 1,
         YELLOW = 2,
-        RED = 3
+        RED = 3,
+        SPECIAL = 4,
     };
 
     void start();

src/spice2x/launcher/options.cpp

@@ -383,12 +383,24 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .disabled = true,
     },
     {
+        // DisableOverlay
         .title = "Disable Spice Overlay",
         .name = "overlaydisable",
         .desc = "Disables the in-game overlay",
         .type = OptionType::Bool,
         .category = "Overlay",
     },
+    {
+        // OverlayScaling
+        .title = "Spice Overlay UI Scale %",
+        .name = "overlayscale",
+        .desc = "Forces UI scaling for the overlay, "
+            "things can look off since the UI was written for 100% scaling. "
+            "Enter value in percentage, between 10-400, inclusive",
+        .type = OptionType::Integer,
+        .setting_name = "200",
+        .category = "Overlay",
+    },
     {
         // spice2x_FpsAutoShow
         .title = "Auto Show FPS/Clock",
@@ -592,7 +604,7 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
     {
         .title = "IIDX TDJ Mode (Lightning Model)",
         .name =  "iidxtdj",
-        .desc = "Enables TDJ cabinet mode. Ensure you also set -iidxsounddevice to desired option",
+        .desc = "Enables TDJ mode (Lightning Model cabinet).",
         .type = OptionType::Bool,
         .game_name = "Beatmania IIDX",
         .category = "Game Options",
@@ -609,6 +621,23 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Beatmania IIDX",
         .category = "Game Options (Advanced)",
     },
+    {
+        // IIDXDigitalTTSocd
+        .title = "IIDX Digital TT SOCD Cleaner",
+        .name = "iidxsocd",
+        .desc = "SOCD for turntables when using button input; what happens when both directions are pressed.\n\n"
+            "last: most recently pressed direction takes priority\n\n"
+            "first: first pressed direction takes priority\n\n"
+            "neutral (default): TT does not move when both directions are pressed, recommended to avoid excessive POORs",
+        .type = OptionType::Enum,
+        .game_name = "Beatmania IIDX",
+        .category = "Game Options (Advanced)",
+        .elements = {
+            {"last", ""},
+            {"first", ""},
+            {"neutral", ""},
+        },
+    },
     {
         // spice2x_IIDXLDJForce720p
         .title = "IIDX LDJ Force 720p (HD)",
@@ -792,6 +821,23 @@ static const std::vector<OptionDefinition> OPTION_DEFINITIONS = {
         .game_name = "Sound Voltex",
         .category = "Game Options (Advanced)",
     },
+    {
+        // SDVXDigitalKnobSocd
+        .title = "SDVX Digital Knob SOCD Cleaner",
+        .name = "sdvxsocd",
+        .desc = "SOCD for knobs when using button input; what happens when both directions are pressed.\n\n"
+            "last (default): most recently pressed direction takes priority, recommended to deal with slams\n\n"
+            "first: first pressed direction takes priority\n\n"
+            "neutral: knob does not move when both directions are pressed",
+        .type = OptionType::Enum,
+        .game_name = "Sound Voltex",
+        .category = "Game Options (Advanced)",
+        .elements = {
+            {"last", ""},
+            {"first", ""},
+            {"neutral", ""},
+        },
+    },
     {
         // spice2x_SDVXAsioDriver
         .title = "SDVX ASIO driver",

src/spice2x/launcher/options.h

@@ -47,6 +47,7 @@ namespace launcher {
             SOFTID,
             VREnable,
             DisableOverlay,
+            OverlayScaling,
             spice2x_FpsAutoShow,
             spice2x_FpsOpposite,
             spice2x_SubScreenAutoShow,
@@ -66,6 +67,7 @@ namespace launcher {
             IIDXBIO2FW,
             IIDXTDJMode,
             spice2x_IIDXDigitalTTSensitivity,
+            IIDXDigitalTTSocd,
             spice2x_IIDXLDJForce720p,
             spice2x_IIDXTDJSubSize,
             spice2x_IIDXLEDFontSize,
@@ -83,6 +85,7 @@ namespace launcher {
             SDVXDisableCameras,
             SDVXNativeTouch,
             spice2x_SDVXDigitalKnobSensitivity,
+            SDVXDigitalKnobSocd,
             spice2x_SDVXAsioDriver,
             spice2x_SDVXSubPos,
             spice2x_SDVXSubRedraw,

src/spice2x/overlay/overlay.cpp

@@ -3,6 +3,7 @@
 #include "avs/game.h"
 #include "cfg/configurator.h"
 #include "games/io.h"
+#include "games/gitadora/gitadora.h"
 #include "games/iidx/iidx.h"
 #include "hooks/graphics/graphics.h"
 #include "misc/eamuse.h"
@@ -51,16 +52,26 @@ namespace overlay {
     bool AUTO_SHOW_IOPANEL = false;
     bool AUTO_SHOW_KEYPAD_P1 = false;
     bool AUTO_SHOW_KEYPAD_P2 = false;
-
     bool USE_WM_CHAR_FOR_IMGUI_CHAR_INPUT = false;
-
     bool FPS_SHOULD_FLIP = false;
+    std::optional<uint32_t> UI_SCALE_PERCENT;
 
     // global
     std::mutex OVERLAY_MUTEX;
     std::unique_ptr<overlay::SpiceOverlay> OVERLAY = nullptr;
     ImFont* DSEG_FONT = nullptr;
     bool SHOW_DEBUG_LOG_WINDOW = false;
+
+    ImVec2 apply_scaling_to_vector(float x, float y) {
+        if (!UI_SCALE_PERCENT.has_value()) {
+            return ImVec2(x, y);
+        }
+        return ImVec2(apply_scaling(x), apply_scaling(y));
+    }
+    
+    ImVec2 apply_scaling_to_vector(const ImVec2& input) {
+        return apply_scaling_to_vector(input.x, input.y);
+    }
 }
 
 static void *ImGui_Alloc(size_t sz, void *user_data) {
@@ -170,6 +181,12 @@ void overlay::SpiceOverlay::init() {
         style.WindowRounding = 0;
     }
 
+    if (UI_SCALE_PERCENT.has_value()) {
+        const auto scale = static_cast<float>(UI_SCALE_PERCENT.value()) / 100.f;
+        ImGui::GetStyle().ScaleAllSizes(scale);
+        ImGui::GetIO().FontGlobalScale = scale;
+    }
+
     // red theme based on:
     // https://github.com/ocornut/imgui/issues/707#issuecomment-760220280
     // r, g, b, a
@@ -245,7 +262,6 @@ void overlay::SpiceOverlay::init() {
 
     if (!cfg::CONFIGURATOR_STANDALONE) {
         io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
-        io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable;
     }
     if (is_touch_available("SpiceOverlay::init")) {
         io.ConfigFlags |= ImGuiConfigFlags_IsTouchScreen;
@@ -366,7 +382,8 @@ void overlay::SpiceOverlay::init() {
             window_iopanel = new overlay::windows::IIDXIOPanel(this);
         } else if (avs::game::is_model("MDX")) {
             window_iopanel = new overlay::windows::DDRIOPanel(this);
-        } else if (avs::game::is_model({"J32", "J33", "K32", "K33", "L32", "L33", "M32"})) {
+        } else if (avs::game::is_model({"J32", "J33", "K32", "K33", "L32", "L33", "M32"}) &&
+            !games::gitadora::is_arena_model()) {
             window_iopanel = new overlay::windows::GitadoraIOPanel(this);
         } else {
             window_iopanel = new overlay::windows::IOPanel(this);

src/spice2x/overlay/overlay.h

@@ -3,6 +3,7 @@
 #include <memory>
 #include <mutex>
 #include <functional>
+#include <optional>
 #include <vector>
 #include <windows.h>
 #include <d3d9.h>
@@ -27,6 +28,18 @@ namespace overlay {
     extern bool USE_WM_CHAR_FOR_IMGUI_CHAR_INPUT;
     extern bool FPS_SHOULD_FLIP;
     extern bool SHOW_DEBUG_LOG_WINDOW;
+    extern std::optional<uint32_t> UI_SCALE_PERCENT;
+
+    template <typename T>
+    float apply_scaling(T input) {
+        if (!UI_SCALE_PERCENT.has_value()) {
+            return input;
+        }
+        return static_cast<float>(input) * UI_SCALE_PERCENT.value() / 100.f;
+    }
+
+    ImVec2 apply_scaling_to_vector(const ImVec2& input);
+    ImVec2 apply_scaling_to_vector(float x, float y);
 
     class SpiceOverlay {
     public:

src/spice2x/overlay/windows/camera_control.cpp

@@ -21,7 +21,7 @@ namespace overlay::windows {
     CameraControl::CameraControl(SpiceOverlay *overlay) : Window(overlay) {
         this->title = "IIDX Camera Control";
         this->flags |= ImGuiWindowFlags_AlwaysAutoResize;
-        this->init_pos = ImVec2(40, 40);
+        this->init_pos = overlay::apply_scaling_to_vector(40, 40);
         this->toggle_button = games::OverlayButtons::ToggleCameraControl;
     }
 

src/spice2x/overlay/windows/card_manager.cpp

@@ -17,7 +17,7 @@ namespace overlay::windows {
 
     CardManager::CardManager(SpiceOverlay *overlay) : Window(overlay) {
         this->title = "Card Manager";
-        this->init_size = ImVec2(420, 420);
+        this->init_size = overlay::apply_scaling_to_vector(ImVec2(420, 420));
 
         if (cfg::CONFIGURATOR_STANDALONE) {
             this->init_pos = ImVec2(40, 40);
@@ -303,7 +303,7 @@ namespace overlay::windows {
         //
         // setting ImGuiInputTextFlags_CallbackCharFilter and pressing escape doesn't cause below 
         // to return true, making it necessary to provide a callback...
-        ImGui::SetNextItemWidth(240);
+        ImGui::SetNextItemWidth(overlay::apply_scaling(240));
         if (ImGui::InputTextWithHint("", "Type here to search..", &this->search_filter)) {
             this->current_card = nullptr;
             this->search_filter_in_lower_case = strtolower(this->search_filter);

src/spice2x/overlay/windows/config.cpp

@@ -42,8 +42,8 @@ namespace overlay::windows {
     Config::Config(overlay::SpiceOverlay *overlay) : Window(overlay) {
         this->title = "Configuration";
         this->toggle_button = games::OverlayButtons::ToggleConfig;
-        this->init_size = ImVec2(800, 600);
-        this->size_min = ImVec2(100, 200);
+        this->init_size = overlay::apply_scaling_to_vector(ImVec2(800, 600));
+        this->size_min = overlay::apply_scaling_to_vector(ImVec2(100, 200));
         this->init_pos = ImVec2(0, 0);
         if (cfg::CONFIGURATOR_STANDALONE && cfg::CONFIGURATOR_TYPE == cfg::ConfigType::Config) {
             this->active = true;
@@ -238,8 +238,8 @@ namespace overlay::windows {
         // tab selection
         auto tab_selected_new = ConfigTab::CONFIG_TAB_INVALID;
         if (ImGui::BeginTabBar("Config Tabs", ImGuiTabBarFlags_NoCloseWithMiddleMouseButton)) {
-            const int page_offset = cfg::CONFIGURATOR_STANDALONE ? 88 : 110;
-            const int page_offset2 = cfg::CONFIGURATOR_STANDALONE ? 65 : 87;
+            const int page_offset = overlay::apply_scaling(cfg::CONFIGURATOR_STANDALONE ? 88 : 110);
+            const int page_offset2 = overlay::apply_scaling(cfg::CONFIGURATOR_STANDALONE ? 65 : 87);
 
             if (ImGui::BeginTabItem("Buttons")) {
                 tab_selected_new = ConfigTab::CONFIG_TAB_BUTTONS;
@@ -575,7 +575,7 @@ namespace overlay::windows {
         if (ImGui::BeginTable("ButtonsTable", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg)) {
             ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthStretch);
             ImGui::TableSetupColumn("Binding", ImGuiTableColumnFlags_WidthStretch);
-            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, 240);
+            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, overlay::apply_scaling(240));
 
             // check if empty
             if (!buttons || buttons->empty()) {
@@ -1644,7 +1644,7 @@ namespace overlay::windows {
         if (ImGui::BeginTable("AnalogsTable", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg)) {
             ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthStretch);
             ImGui::TableSetupColumn("Binding", ImGuiTableColumnFlags_WidthStretch);
-            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, 240);
+            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, overlay::apply_scaling(240));
 
             // check if empty
             if (!analogs || analogs->empty()) {
@@ -2086,7 +2086,7 @@ namespace overlay::windows {
         if (ImGui::BeginTable("LightsTable", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg)) {
             ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthStretch);
             ImGui::TableSetupColumn("Binding", ImGuiTableColumnFlags_WidthStretch);
-            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, 240);
+            ImGui::TableSetupColumn("Actions", ImGuiTableColumnFlags_WidthFixed, overlay::apply_scaling(240));
 
             // check if empty
             if (!lights || lights->empty()) {
@@ -2643,8 +2643,14 @@ namespace overlay::windows {
         // tables must share the same ID to have synced column settings
         if (ImGui::BeginTable("OptionsTable", 3, ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg)) {
             ImGui::TableSetupColumn("Option", ImGuiTableColumnFlags_WidthStretch);
-            ImGui::TableSetupColumn("CMD Line Parameter", ImGuiTableColumnFlags_WidthFixed, 216);
-            ImGui::TableSetupColumn("Setting", ImGuiTableColumnFlags_WidthFixed, 240);
+            ImGui::TableSetupColumn(
+                "CMD Line Parameter",
+                ImGuiTableColumnFlags_WidthFixed,
+                overlay::apply_scaling(216));
+            ImGui::TableSetupColumn(
+                "Setting",
+                ImGuiTableColumnFlags_WidthFixed,
+                overlay::apply_scaling(240));
 
             // iterate options
             options_count = 0;
@@ -3056,7 +3062,11 @@ namespace overlay::windows {
             ImGui::PushStyleColor(ImGuiCol_FrameBg, ImVec4(0.34f, 0.14f, 0.14f, 0.54f));
             ImGui::PushStyleColor(ImGuiCol_FrameBgActive, ImVec4(0.34f, 0.14f, 0.14f, 0.54f));
             ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, ImVec4(0.34f, 0.14f, 0.14f, 0.64f));
-            ImGui::PushItemWidth(MIN(700, MAX(100, ImGui::GetWindowSize().x - 400)));
+            ImGui::PushItemWidth(
+                MIN(overlay::apply_scaling(700),
+                    MAX(overlay::apply_scaling(100),
+                        ImGui::GetWindowSize().x - overlay::apply_scaling(400))));
+
             ImGui::Combo("##game_selector", game_selected, games_names.data(), (int)games_list.size());
             ImGui::PopItemWidth();
             ImGui::PopStyleColor(3);
@@ -3080,8 +3090,8 @@ namespace overlay::windows {
         // draw popups
         {
             const ImVec2 popup_size(
-                std::min(ImGui::GetIO().DisplaySize.x * 0.9f, 800.f),
-                std::min(ImGui::GetIO().DisplaySize.y * 0.9f, 800.f));
+                std::min(ImGui::GetIO().DisplaySize.x * 0.9f, overlay::apply_scaling(800.f)),
+                std::min(ImGui::GetIO().DisplaySize.y * 0.9f, overlay::apply_scaling(800.f)));
 
             const ImVec2 popup_pos(
                 ImGui::GetIO().DisplaySize.x / 2 - popup_size.x / 2,

src/spice2x/overlay/windows/exitprompt.cpp

@@ -10,10 +10,10 @@ namespace overlay::windows {
         this->title = "spice2x";
         this->init_size = ImVec2(
             (ImGui::GetFontSize() * 14) + (ImGui::GetStyle().ItemSpacing.x * 2),
-            120);
+            overlay::apply_scaling(120));
         this->init_pos = ImVec2(
                     ImGui::GetIO().DisplaySize.x / 2 - this->init_size.x / 2,
-                    10);
+                    overlay::apply_scaling(10));
 
         this->flags = ImGuiWindowFlags_NoResize
                       | ImGuiWindowFlags_NoCollapse

src/spice2x/overlay/windows/fps.cpp

@@ -20,8 +20,11 @@ namespace overlay::windows {
 
     void FPS::calculate_initial_window() {
         // width is 114x82 px with window decoration, 98x47 for the content
-        int pos_x = overlay::FPS_SHOULD_FLIP ? 8 : ImGui::GetIO().DisplaySize.x - 122;
-        this->init_pos =  ImVec2(pos_x, 8);
+        int pos_x =
+            overlay::FPS_SHOULD_FLIP ?
+            overlay::apply_scaling(8) :
+            ImGui::GetIO().DisplaySize.x - overlay::apply_scaling(122);
+        this->init_pos =  ImVec2(pos_x, overlay::apply_scaling(8));
     }
 
     void FPS::build_content() {

src/spice2x/overlay/windows/iopanel.cpp

@@ -11,7 +11,7 @@ namespace overlay::windows {
         this->flags = ImGuiWindowFlags_AlwaysAutoResize;
 
         this->init_size = ImVec2(
-            80,
+            overlay::apply_scaling(80),
             ImGui::GetFrameHeight() +
                 ImGui::GetStyle().WindowPadding.y * 2 +
                 ImGui::GetFrameHeightWithSpacing() * 3 +
@@ -58,7 +58,7 @@ namespace overlay::windows {
     void IOPanel::build_io_panel() {}
 
     void IOPanel::build_operator_menu() {
-        const ImVec2 wide(60, 0);
+        const ImVec2 wide = overlay::apply_scaling_to_vector(60, 0);
         const float spacing_x = ImGui::GetStyle().ItemSpacing.y;
         const ImVec2 tall(
             ImGui::GetFrameHeight(),

src/spice2x/overlay/windows/iopanel_gfdm.cpp

@@ -68,7 +68,7 @@ namespace overlay::windows {
     }
 
     void GitadoraIOPanel::build_io_panel() {
-        ImGui::Dummy(ImVec2(12, 0));
+        ImGui::Dummy(overlay::apply_scaling_to_vector(12, 0));
 
         ImGui::SameLine();
         this->draw_buttons(0);
@@ -80,7 +80,7 @@ namespace overlay::windows {
         // draw p2 only if guitar freaks
         if (this->two_players) {
             ImGui::SameLine();
-            ImGui::Dummy(ImVec2(12, 0));
+            ImGui::Dummy(overlay::apply_scaling_to_vector(12, 0));
             ImGui::SameLine();
             this->draw_buttons(1);
             if (this->has_guitar_knobs) {
@@ -146,7 +146,7 @@ namespace overlay::windows {
             games::gitadora::Analogs::GuitarP1Knob :
             games::gitadora::Analogs::GuitarP2Knob;
 
-        const ImVec2 slider_size(32, get_suggested_height());
+        const ImVec2 slider_size(overlay::apply_scaling(32), get_suggested_height());
 
         // get analog
         const auto analogs = games::get_analogs(eamuse_get_game());

src/spice2x/overlay/windows/keypad.cpp

@@ -19,15 +19,15 @@ namespace overlay::windows {
             case 0: {
                 this->toggle_button = games::OverlayButtons::ToggleVirtualKeypadP1;
                 this->init_pos = ImVec2(
-                        26,
-                        ImGui::GetIO().DisplaySize.y - 264);
+                        overlay::apply_scaling(26),
+                        ImGui::GetIO().DisplaySize.y - overlay::apply_scaling(264));
                 break;
             }
             case 1: {
                 this->toggle_button = games::OverlayButtons::ToggleVirtualKeypadP2;
                 this->init_pos = ImVec2(
-                        ImGui::GetIO().DisplaySize.x - 220,
-                        ImGui::GetIO().DisplaySize.y - 264);
+                        ImGui::GetIO().DisplaySize.x - overlay::apply_scaling(220),
+                        ImGui::GetIO().DisplaySize.y - overlay::apply_scaling(264));
                 break;
             }
         }
@@ -82,9 +82,17 @@ namespace overlay::windows {
 
             // add selectable (fill last line)
             if (i == std::size(BUTTONS) - 1) {
-                ImGui::Selectable(button.text, false, 0, ImVec2(112, 32));
+                ImGui::Selectable(
+                    button.text,
+                    false,
+                    0,
+                    overlay::apply_scaling_to_vector(ImVec2(112, 32)));
             } else {
-                ImGui::Selectable(button.text, false, 0, ImVec2(32, 32));
+                ImGui::Selectable(
+                    button.text,
+                    false,
+                    0,
+                    overlay::apply_scaling_to_vector(ImVec2(32, 32)));
             }
 
             // mouse down handler

src/spice2x/overlay/windows/screen_resize.cpp

@@ -27,6 +27,11 @@ namespace overlay::windows {
     }
 
     HWND ScreenResize::get_first_window() {
+        // hack for gitadora arena model which races to create many windows
+        // so [0] is not always the main one
+        if (GRAPHICS_WINDOW_MAIN.has_value()) {
+            return GRAPHICS_WINDOW_MAIN.value();
+        }
         if (GRAPHICS_WINDOWS.size() == 0) {
             return NULL;
         }

src/spice2x/overlay/windows/sdvx_sub.cpp

@@ -10,8 +10,7 @@ namespace overlay::windows {
     SDVXSubScreen::SDVXSubScreen(SpiceOverlay *overlay) : GenericSubScreen(overlay) {
         this->title = "SDVX Subscreen";
 
-        bool isValkyrieCabinetMode = avs::game::SPEC[0] == 'G' || avs::game::SPEC[0] == 'H';
-        if (!isValkyrieCabinetMode) {
+        if (!games::sdvx::is_valkyrie_model()) {
             this->disabled_message = "Valkyrie Model mode is not enabled!";
         } else if (games::sdvx::SHOW_VM_MONITOR_WARNING) {
             this->disabled_message = "VM mode subscreen overlay is not compatible with -monitor option";

src/spice2x/util/deferlog.cpp

@@ -32,6 +32,16 @@ namespace deferredlogs {
         deferred_errors.emplace_back(messages);
     }
 
+    void report_fatal_message() {
+        static std::once_flag printed;
+        std::call_once(printed, []() {
+            deferredlogs::defer_error_messages({
+                "game reported FATAL error(s)",
+                "    look for messages containing F: in the log",
+                });
+        });
+    }
+
     void dump_to_logger(bool is_crash) {
         static std::once_flag printed;
         std::call_once(printed, [is_crash]() {
@@ -76,8 +86,8 @@ namespace deferredlogs {
                 msg += "\n";
             }
 
-            for (auto messages : errors) {
-                for (auto message : messages) {
+            for (const auto &messages : errors) {
+                for (const auto &message : messages) {
                     msg += "  " + message + "\n";
                 }
                 msg += "\n";
@@ -85,13 +95,13 @@ namespace deferredlogs {
 
             msg += "  unsure what to do next?\n";
             msg += "    * update to the latest version:\n";
-            msg += "        https://github.com/spice2x/spice2x.github.io/releases/latest\n";
+            msg += "        https://github.com/spice2x/spice2x.github.io/releases\n";
             msg += "    * check the FAQ:\n";
             msg += "        https://github.com/spice2x/spice2x.github.io/wiki/Known-issues\n";
             msg += "\n";
             msg += "\\------------------------- spice2x auto-troubleshooter ------------------------/\n";
 
-            log_warning("troubleshooter", "{}", msg);
+            log_special("troubleshooter", "{}", msg);
         });
     }
 }

src/spice2x/util/deferlog.h

@@ -10,6 +10,7 @@ namespace deferredlogs {
     extern const std::initializer_list<std::string> SUPERSTEP_SOUND_ERROR_MESSAGE;
 
     void set_softid(const std::string& softid);
+    void report_fatal_message();
     void defer_error_messages(std::initializer_list<std::string> messages);
     void dump_to_logger(bool is_crash=false);
 }

src/spice2x/util/logging.h

@@ -87,6 +87,9 @@ void show_popup_for_fatal_error(std::string message);
 #define log_warning(module, format_str, ...) logger::push( \
     LOG_FORMAT("W", module, format_str, ## __VA_ARGS__), logger::Style::YELLOW)
 
+#define log_special(module, format_str, ...) logger::push( \
+    LOG_FORMAT("W", module, format_str, ## __VA_ARGS__), logger::Style::SPECIAL)
+
 #define log_fatal(module, format_str, ...) { \
     logger::push(LOG_FORMAT("F", module, format_str, ## __VA_ARGS__), logger::Style::RED); \
     show_popup_for_fatal_error(LOG_FORMAT_POPUP(module, format_str, ## __VA_ARGS__)); \

src/spice2x/util/socd_cleaner.cpp

@@ -0,0 +1,87 @@
+#include "socd_cleaner.h"
+
+#include "util/logging.h"
+
+#define DEBUG_VERBOSE 0
+
+#if DEBUG_VERBOSE
+#define log_debug(module, format_str, ...) logger::push( \
+    LOG_FORMAT("M", module, format_str, ## __VA_ARGS__), logger::Style::GREY)
+#else
+#define log_debug(module, format_str, ...)
+#endif
+
+namespace socd {
+
+    SocdAlgorithm ALGORITHM = SocdAlgorithm::Neutral;
+   
+    static double last_rising_edge[2][2] = {};
+    static bool last_button_state[2][2] = {};
+
+    // this has no locking, use only if you know there is only one i/o thread that will call this
+    SocdResult socd_clean(uint8_t device, bool ccw, bool cw, double time_now) {
+        if (device >= 2) {
+            log_fatal("socd", "invalid device index in socd_clean: {}", device);
+        }
+
+        // SOCD last input algorithm needs to keep track of rising edge times
+        if (ALGORITHM != SocdAlgorithm::Neutral) {
+            // detect rising edges
+            if (!last_button_state[device][SocdCCW] && ccw) {
+                last_rising_edge[device][SocdCCW] = time_now;
+            }
+            if (!last_button_state[device][SocdCW] && cw) {
+                last_rising_edge[device][SocdCW] = time_now;
+            }
+
+            // update button state for next time
+            last_button_state[device][SocdCCW] = ccw;
+            last_button_state[device][SocdCW] = cw;
+        }
+
+        // determine direction: easy cases
+        if (!ccw && !cw) {
+            return SocdNone;
+        }
+        if (ccw && !cw) {
+            return SocdCCW;
+        }
+        if (!ccw && cw) {
+            return SocdCW;
+        }
+
+        // SOCD logic; depends on algorithm in use
+        const auto ccw_time = last_rising_edge[device][SocdCCW];
+        const auto cw_time = last_rising_edge[device][SocdCW];
+        log_debug("socd", "ccw={}, cw ={}", ccw_time, cw_time);
+
+        if (ALGORITHM == SocdAlgorithm::PreferRecent) {
+            // SOCD: prefer last input
+            if (ccw_time < cw_time) {
+                // while CCW is being held, CW got pressed
+                return SocdCW;
+            } else if (ccw_time > cw_time) {
+                // while CW is being held, CCW got pressed
+                return SocdCCW;
+            } else {
+                // it's a tie; instead of none, we'll pick a direction
+                return SocdCW;
+            }
+        } else if (ALGORITHM == SocdAlgorithm::PreferFirst) {
+            // SOCD: keep first input
+            if (ccw_time < cw_time) {
+                // while CCW is being held, CW got pressed
+                return SocdCCW;
+            } else if (ccw_time > cw_time) {
+                // while CW is being held, CCW got pressed
+                return SocdCW;
+            } else {
+                // it's a tie; instead of none, we'll pick a direction
+                return SocdCW;
+            }
+        } else {
+            // SOCD: neutral when both are pressed
+            return SocdNone;
+        }
+    }
+}

src/spice2x/util/socd_cleaner.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <cstdint>
+
+namespace socd {
+
+    enum class SocdAlgorithm {
+        Neutral,
+        PreferRecent,
+        PreferFirst
+    };
+
+    extern SocdAlgorithm ALGORITHM;
+
+    typedef enum _SocdResult {
+        SocdCCW = 0,
+        SocdCW = 1,
+        SocdNone = 2
+    } SocdResult;
+
+    SocdResult socd_clean(uint8_t device, bool ccw, bool cw, double time_now);
+}